tvOS support

- Bugs in fileByUniqueName(), relativePath() and absoluteURL fixed
- Introduced delay in LocalFolderMonitor to prevent excess handler calling

FileProvider.podspec

@@ -16,8 +16,8 @@ Pod::Spec.new do |s|
   #
 
   s.name         = "FileProvider"
-  s.version      = "0.1.0"
-  s.summary      = "Extended Local/WebDAV/SMB/CIFS/etc. File Manager for Swift on iOS and MacOS."
+  s.version      = "0.3.0"
+  s.summary      = "NSFileManager replacement for Local and Remote (WebDAV/Dropbox/SMB2) files on iOS and MacOS."
 
   # This description is used to generate tags and improve search results.
   #   * Think: What does it do? Why did you write it? What is the focus?
@@ -67,13 +67,13 @@ Pod::Spec.new do |s|
   #
 
   # s.platform     = :ios
-  # s.platform     = :ios, "7.0"
+  # s.platform     = :ios, "8.0"
 
   #  When using multiple platforms
   s.ios.deployment_target = "8.0"
   s.osx.deployment_target = "10.10"
   # s.watchos.deployment_target = "2.0"
-  # s.tvos.deployment_target = "9.0"
+  s.tvos.deployment_target = "9.0"
 
 
   # ――― Source Location ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――― #
@@ -93,8 +93,8 @@ Pod::Spec.new do |s|
   #  Not including the public_header_files will make all headers public.
   #
 
-  s.source_files  = "Source/*.swift"
-  s.exclude_files = "Source/Exclude"
+  s.source_files  = "Sources/*.swift"
+  s.exclude_files = "Sources/Exclude"
 
   # s.public_header_files = "Classes/**/*.h"
 

FileProvider.xcodeproj/project.pbxproj

@@ -0,0 +1,801 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		799396A71D48C02300086753 /* AEXML.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396921D48C02300086753 /* AEXML.swift */; };
+		799396A81D48C02300086753 /* AEXML.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396921D48C02300086753 /* AEXML.swift */; };
+		799396A91D48C02300086753 /* AEXML.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396921D48C02300086753 /* AEXML.swift */; };
+		799396AA1D48C02300086753 /* DropboxFileProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396931D48C02300086753 /* DropboxFileProvider.swift */; };
+		799396AB1D48C02300086753 /* DropboxFileProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396931D48C02300086753 /* DropboxFileProvider.swift */; };
+		799396AC1D48C02300086753 /* DropboxFileProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396931D48C02300086753 /* DropboxFileProvider.swift */; };
+		799396B01D48C02300086753 /* FileProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396951D48C02300086753 /* FileProvider.swift */; };
+		799396B11D48C02300086753 /* FileProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396951D48C02300086753 /* FileProvider.swift */; };
+		799396B21D48C02300086753 /* FileProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396951D48C02300086753 /* FileProvider.swift */; };
+		799396B31D48C02300086753 /* LocalFileProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396961D48C02300086753 /* LocalFileProvider.swift */; };
+		799396B41D48C02300086753 /* LocalFileProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396961D48C02300086753 /* LocalFileProvider.swift */; };
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+		799396B61D48C02300086753 /* SMBClient.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396971D48C02300086753 /* SMBClient.swift */; };
+		799396B71D48C02300086753 /* SMBClient.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396971D48C02300086753 /* SMBClient.swift */; };
+		799396B81D48C02300086753 /* SMBClient.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396971D48C02300086753 /* SMBClient.swift */; };
+		799396B91D48C02300086753 /* SMBFileProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396981D48C02300086753 /* SMBFileProvider.swift */; };
+		799396BA1D48C02300086753 /* SMBFileProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 799396981D48C02300086753 /* SMBFileProvider.swift */; };
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+		799396BD1D48C02300086753 /* CIFSTypes.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7993969A1D48C02300086753 /* CIFSTypes.swift */; };
+		799396BE1D48C02300086753 /* CIFSTypes.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7993969A1D48C02300086753 /* CIFSTypes.swift */; };
+		799396BF1D48C02300086753 /* SMB2DataTypes.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7993969B1D48C02300086753 /* SMB2DataTypes.swift */; };
+		799396C01D48C02300086753 /* SMB2DataTypes.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7993969B1D48C02300086753 /* SMB2DataTypes.swift */; };
+		799396C11D48C02300086753 /* SMB2DataTypes.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7993969B1D48C02300086753 /* SMB2DataTypes.swift */; };
+		799396C21D48C02300086753 /* SMB2FileHandle.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7993969C1D48C02300086753 /* SMB2FileHandle.swift */; };
+		799396C31D48C02300086753 /* SMB2FileHandle.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7993969C1D48C02300086753 /* SMB2FileHandle.swift */; };
+		799396C41D48C02300086753 /* SMB2FileHandle.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7993969C1D48C02300086753 /* SMB2FileHandle.swift */; };
+		799396C51D48C02300086753 /* SMB2FileOperation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7993969D1D48C02300086753 /* SMB2FileOperation.swift */; };
+		799396C61D48C02300086753 /* SMB2FileOperation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7993969D1D48C02300086753 /* SMB2FileOperation.swift */; };
+		799396C71D48C02300086753 /* SMB2FileOperation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7993969D1D48C02300086753 /* SMB2FileOperation.swift */; };
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+		799396C91D48C02300086753 /* SMB2IOCtl.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7993969E1D48C02300086753 /* SMB2IOCtl.swift */; };
+		799396CA1D48C02300086753 /* SMB2IOCtl.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7993969E1D48C02300086753 /* SMB2IOCtl.swift */; };
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+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
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+		799396A31D48C02300086753 /* SMB2Types.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SMB2Types.swift; sourceTree = "<group>"; };
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+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
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+/* End PBXFrameworksBuildPhase section */
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+				799396751D48B80D00086753 /* FileProvider.framework */,
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+				799396931D48C02300086753 /* DropboxFileProvider.swift */,
+				799396941D48C02300086753 /* FileProvider.h */,
+				799396951D48C02300086753 /* FileProvider.swift */,
+				799396961D48C02300086753 /* LocalFileProvider.swift */,
+				799396971D48C02300086753 /* SMBClient.swift */,
+				799396981D48C02300086753 /* SMBFileProvider.swift */,
+				799396A51D48C02300086753 /* TCPSocketClient.swift */,
+				799396A61D48C02300086753 /* WebDAVFileProvider.swift */,
+			);
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+			children = (
+				7993969A1D48C02300086753 /* CIFSTypes.swift */,
+				7993969B1D48C02300086753 /* SMB2DataTypes.swift */,
+				7993969C1D48C02300086753 /* SMB2FileHandle.swift */,
+				7993969D1D48C02300086753 /* SMB2FileOperation.swift */,
+				7993969E1D48C02300086753 /* SMB2IOCtl.swift */,
+				7993969F1D48C02300086753 /* SMB2Query.swift */,
+				799396A01D48C02300086753 /* SMB2Session.swift */,
+				799396A11D48C02300086753 /* SMB2SetInfo.swift */,
+				799396A21D48C02300086753 /* SMB2Tree.swift */,
+				799396A31D48C02300086753 /* SMB2Types.swift */,
+				799396A41D48C02300086753 /* SMBErrorType.swift */,
+			);
+			path = SMBTypes;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
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+/* Begin PBXHeadersBuildPhase section */
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+/* End PBXHeadersBuildPhase section */
+
+/* Begin PBXNativeTarget section */
+		799396661D48B7F600086753 /* FileProvider iOS */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 7993966F1D48B7F600086753 /* Build configuration list for PBXNativeTarget "FileProvider iOS" */;
+			buildPhases = (
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+				799396641D48B7F600086753 /* Headers */,
+				799396651D48B7F600086753 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = "FileProvider iOS";
+			productName = "FileProvider iOS";
+			productReference = 799396671D48B7F600086753 /* FileProvider.framework */;
+			productType = "com.apple.product-type.framework";
+		};
+		799396741D48B80D00086753 /* FileProvider OSX */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 7993967A1D48B80D00086753 /* Build configuration list for PBXNativeTarget "FileProvider OSX" */;
+			buildPhases = (
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+				799396721D48B80D00086753 /* Headers */,
+				799396731D48B80D00086753 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = "FileProvider OSX";
+			productName = "FileProvider OSX";
+			productReference = 799396751D48B80D00086753 /* FileProvider.framework */;
+			productType = "com.apple.product-type.framework";
+		};
+		799396811D48B82700086753 /* FileProvider tvOS */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 799396871D48B82700086753 /* Build configuration list for PBXNativeTarget "FileProvider tvOS" */;
+			buildPhases = (
+				7993967D1D48B82700086753 /* Sources */,
+				7993967E1D48B82700086753 /* Frameworks */,
+				7993967F1D48B82700086753 /* Headers */,
+				799396801D48B82700086753 /* Resources */,
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+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				INFOPLIST_FILE = "Pod/Info-tvOS.plist";
+				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				MTL_ENABLE_DEBUG_INFO = NO;
+				PRODUCT_BUNDLE_IDENTIFIER = "com.mousavian.FileProvider-tvOS";
+				PRODUCT_NAME = FileProvider;
+				SDKROOT = appletvos;
+				SKIP_INSTALL = YES;
+				TARGETED_DEVICE_FAMILY = 3;
+				TVOS_DEPLOYMENT_TARGET = 9.0;
+				VALIDATE_PRODUCT = YES;
+				VERSIONING_SYSTEM = "apple-generic";
+				VERSION_INFO_PREFIX = "";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		7993965F1D48B7BF00086753 /* Build configuration list for PBXProject "FileProvider" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				799396601D48B7BF00086753 /* Debug */,
+				799396611D48B7BF00086753 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		7993966F1D48B7F600086753 /* Build configuration list for PBXNativeTarget "FileProvider iOS" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7993966D1D48B7F600086753 /* Debug */,
+				7993966E1D48B7F600086753 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+		};
+		7993967A1D48B80D00086753 /* Build configuration list for PBXNativeTarget "FileProvider OSX" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7993967B1D48B80D00086753 /* Debug */,
+				7993967C1D48B80D00086753 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+		};
+		799396871D48B82700086753 /* Build configuration list for PBXNativeTarget "FileProvider tvOS" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				799396881D48B82700086753 /* Debug */,
+				799396891D48B82700086753 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 7993965C1D48B7BF00086753 /* Project object */;
+}

FileProvider.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:FileProvider.xcodeproj">
+   </FileRef>
+</Workspace>

FileProvider.xcodeproj/xcshareddata/xcschemes/FileProvider OSX.xcscheme

@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0730"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "799396741D48B80D00086753"
+               BuildableName = "FileProvider.framework"
+               BlueprintName = "FileProvider OSX"
+               ReferencedContainer = "container:FileProvider.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "799396741D48B80D00086753"
+            BuildableName = "FileProvider.framework"
+            BlueprintName = "FileProvider OSX"
+            ReferencedContainer = "container:FileProvider.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "799396741D48B80D00086753"
+            BuildableName = "FileProvider.framework"
+            BlueprintName = "FileProvider OSX"
+            ReferencedContainer = "container:FileProvider.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

FileProvider.xcodeproj/xcshareddata/xcschemes/FileProvider iOS.xcscheme

@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0730"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "799396661D48B7F600086753"
+               BuildableName = "FileProvider.framework"
+               BlueprintName = "FileProvider iOS"
+               ReferencedContainer = "container:FileProvider.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "799396661D48B7F600086753"
+            BuildableName = "FileProvider.framework"
+            BlueprintName = "FileProvider iOS"
+            ReferencedContainer = "container:FileProvider.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "799396661D48B7F600086753"
+            BuildableName = "FileProvider.framework"
+            BlueprintName = "FileProvider iOS"
+            ReferencedContainer = "container:FileProvider.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

FileProvider.xcodeproj/xcshareddata/xcschemes/FileProvider tvOS.xcscheme

@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0730"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "799396811D48B82700086753"
+               BuildableName = "FileProvider.framework"
+               BlueprintName = "FileProvider tvOS"
+               ReferencedContainer = "container:FileProvider.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "799396811D48B82700086753"
+            BuildableName = "FileProvider.framework"
+            BlueprintName = "FileProvider tvOS"
+            ReferencedContainer = "container:FileProvider.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "799396811D48B82700086753"
+            BuildableName = "FileProvider.framework"
+            BlueprintName = "FileProvider tvOS"
+            ReferencedContainer = "container:FileProvider.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

Pod/Info-MacOS.plist

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>FMWK</string>
+	<key>CFBundleShortVersionString</key>
+	<string>0.3.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>$(CURRENT_PROJECT_VERSION)</string>
+	<key>NSPrincipalClass</key>
+	<string></string>
+</dict>
+</plist>

Pod/Info-iOS.plist

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>FMWK</string>
+	<key>CFBundleShortVersionString</key>
+	<string>0.3.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>$(CURRENT_PROJECT_VERSION)</string>
+	<key>NSPrincipalClass</key>
+	<string></string>
+</dict>
+</plist>

Pod/Info-tvOS.plist

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>FMWK</string>
+	<key>CFBundleShortVersionString</key>
+	<string>0.3.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>$(CURRENT_PROJECT_VERSION)</string>
+	<key>NSPrincipalClass</key>
+	<string></string>
+</dict>
+</plist>

README.md

@@ -1,46 +1,50 @@
 # FileProvider (experimental)
 
->This Swift library provide a swifty way to deal with local and remote files and directories in same way.
+>This Swift library provide a swifty way to deal with local and remote files and directories in a unified way.
 
 [![Swift Version][swift-image]][swift-url]
 [![License][license-image]][license-url]
 [![Platform](https://img.shields.io/badge/Platform-iOS%2C%20OSX-lightgray.svg)]()
-[![codebeat badge](https://codebeat.co/badges/7b359f48-78eb-4647-ab22-56262a827517)](https://codebeat.co/projects/github-com-amosavian-fileprovider)
+[![CocoaPods Compatible](https://img.shields.io/cocoapods/v/FileProvider.svg)](https://img.shields.io/cocoapods/v/FileProvider.svg)
+[![codebeat badge][codebeat-image]][codebeat-url]
 
 <!--- 
 [![Build Status][travis-image]][travis-url]
-[![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage)
-[![CocoaPods Compatible](https://img.shields.io/cocoapods/v/EZSwiftExtensions.svg)](https://img.shields.io/cocoapods/v/LFAlertController.svg) 
+[![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage) 
 ---> 
 
-
-
 This library provides implementaion of WebDav and SMB/CIFS (incomplete) and local files.
 
 All functions are async calls and it wont block your main thread.
 
+Local and WebDAV providers are fully tested and can be used in production environment.
+
 ## Features
 
-- [x] **LocalFileProvider** a wrapper for `NSFileManager` with some additions like searching and reading a portion of file
-- [x] **WebDAVFileProvider** WebDAV protocol is usual file transmission system on Macs
-- [ ] **SMBFileProvider** SMB/CIFS and SMB2/3 are file and printer sharing protocol which is originated from IBM & Microsoft and SMB2/3 is now replacing AFP protocol on MacOS. I Implemented data types and some basic functions but *main interface is not implemented yet!*
-- [ ] **DropboxFileProvider**
+- [x] **LocalFileProvider** a wrapper around `NSFileManager` with some additions like searching and reading a portion of file.
+- [x] **WebDAVFileProvider** WebDAV protocol is usual file transmission system on Macs.
+- [ ] **SMBFileProvider** SMB/CIFS and SMB2/3 are file and printer sharing protocol which is originated from IBM & Microsoft and SMB2/3 is now replacing AFP protocol on MacOS. I implemented data types and some basic functions but *main interface is not implemented yet!*
+- [ ] **DropboxFileProvider** *partially implemented*
 - [ ] **FTPFileProvider**
 - [ ] **AmazonS3FileProvider**
 
 ## Requirements
 
 - **Swift 2.2**
-- iOS 7.0 , OSX 10.9
+- iOS 8.0 , OSX 10.10
 - XCode 7.3
 
 ## Installation
 
 ### Cocoapods / Carthage / Swift Package Manager
 
-I will add when project is completed is ready to use in production envioronment
+FileProvider supports both CocoaPods. 
 
-### Git clone
+Add this line to your pods file:
+
+	pod "FileProvider"
+
+### Git
 To have latest updates with ease, use this command on terminal to get a clone:
 
 	git clone https://github.com/amosavian/FileProvider FileProvider
@@ -49,13 +53,12 @@ You can update your library using this command in FileProvider folder:
 
 	git pull
 
-### Submodule into your project
-if you have a git based project, use this command in your projects directory:
+if you have a git based project, use this command in your projects directory to add this project as a submodule to your project:
 
 	git submodule add https://github.com/amosavian/FileProvider FileProvider
 
 ### Manually
-Copy Source folder to your project and voila!
+Copy Source folder to your project and Voila!
 
 ## Usage
 
@@ -65,13 +68,13 @@ Each provider has a specific class which conforms to FileProvider protocol and s
 
 For LocalFileProvider if you want to deal with `Documents` folder
 
-	let documentsFileProvider = LocalFileProvider()
+	let documentsProvider = LocalFileProvider()
 
 is equal to:
 	    
 	let documentPath = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true);
 	let documentsURL = NSURL(fileURLWithPath: documentPath);
-	let documentsFileProvider = LocalFileProvider(baseURL: documentsURL)
+	let documentsProvider = LocalFileProvider(baseURL: documentsURL)
 
 You can't change the base url later. and all paths are related to this base url by default.
 
@@ -79,10 +82,14 @@ For remote file providers authentication may be necessary:
 
 	let credential = NSURLCredential(user: "user", password: "pass", persistence: NSURLCredentialPersistence.Permanent)
 	let webdavProvider = WebDAVFileProvider(baseURL: "http://www.example.com/dav", credential: credential)
+
+* For Dropbox, user is clientID and password is Token which both must be retrieved via [OAuth2 API of Dropbox](https://www.dropbox.com/developers/reference/oauth-guide). There are libraries like [p2/OAuth2](https://github.com/p2/OAuth2) or [OAuthSwift](https://github.com/OAuthSwift/OAuthSwift) which can facilate the procedure to retrieve token.
 	
 For interaction with UI, set delegate variable of `FileProvider` object
 
-### Delegate
+You can use `absoluteURL()` method if provider to get direct access url (local or remote files) for some file systems which allows to do so (Dropbox doesn't support and returns path simply)
+
+### Delegates
 
 For updating User interface please consider using delegate method instead of completion handlers. Delegate methods are guaranteed to run in main thread to avoid bugs.
 
@@ -91,7 +98,7 @@ It's simply tree method which indicated whether the operation failed, succeed an
 Your class should conforms `FileProviderDelegate` class:
 
 	override func viewDidLoad() {
-		documentsFileProvider.delegate = self
+		documentsProvider.delegate = self
 	}
 	
 	func fileproviderSucceed(fileProvider: FileProvider, operation: FileOperation) {
@@ -125,14 +132,27 @@ Your class should conforms `FileProviderDelegate` class:
 		}
 	}
 
+**Note:** `fileproviderProgress()` delegate method is not called by `LocalFileProvider`. 
 
-Use completion handlers for error handling or result processing as far as possible.
+It's recommended to use completion handlers for error handling or result processing.
+
+#### Controlling file operations
+
+You can also implement `FileOperationDelegate` protocol to control behaviour of file operation (copy, move/rename, remove and linking), and decide which files should be removed for example and which won't. 
+
+`fileProvider:shouldDoOperation:` method is called before doing a operation. You sould return `true` if you want to do operation or `false` if you want to stop that operation.
+
+`fileProvider:shouldProceedAfterError:operation:` will be called if an error occured during file operations. Return `true` if you want to continue operation on next files or `false` if you want stop operation further. Default value is false if you don't implement delegate.
+
+**Note: these methods will be called for files in a directory and its subfolders recursively.**
 
 ### Directory contents and file attributes
 
-There is a `FileObject` class which holds file attributes like size and creation date. You can retrieve information of files inside a directory or get information of a file directly
+There is a `FileObject` class which holds file attributes like size and creation date. You can retrieve information of files inside a directory or get information of a file directly.
 
-	documentsFileProvider.attributesOfItemAtPath(path: "/file.txt", completionHandler: {
+For a single file:
+
+	documentsProvider.attributesOfItemAtPath(path: "/file.txt", completionHandler: {
 	    (attributes: LocalFileObject?, error: ErrorType?) -> Void} in
 		if let attributes = attributes {
 			print("File Size: \(attributes.size)")
@@ -142,7 +162,9 @@ There is a `FileObject` class which holds file attributes like size and creation
 		}
 	)
 
-	documentsFileProvider.contentsOfDirectoryAtPath(path: "/", 	completionHandler: {
+To get list of files in a directory:
+
+	documentsProvider.contentsOfDirectoryAtPath(path: "/", 	completionHandler: {
 	    (contents: [LocalFileObject], error: ErrorType?) -> Void} in
 		for file in contents {
 			print("Name: \(attributes.name)")
@@ -154,41 +176,44 @@ There is a `FileObject` class which holds file attributes like size and creation
 
 ### Change current directory
 
-	documentsFileProvider.currentPath = "/New Folder"
+	documentsProvider.currentPath = "/New Folder"
 	// now path is ~/Documents/New Folder
+	
+You can then pass "" (empty string) to contentsOfDirectoryAtPath method to list files in current directory.
 
 ### Creating File and Folders
 
 Creating new directory:
 
-	documentsFileProvider.createFolder(folderName: "new folder", atPath: "/", completionHandler: nil)
+	documentsProvider.createFolder(folderName: "new folder", atPath: "/", completionHandler: nil)
 
 Creating new file from data stream:
 
 	let data = "hello world!".dataUsingEncoding(NSUTF8StringEncoding)
 	let file = FileObject(name: "old.txt", createdDate: NSDate(), modifiedDate: NSDate(), isHidden: false, isReadOnly: true)
-	documentsFileProvider.createFile(fileAttribs: file, atPath: "/", contents: data, completionHandler: nil)
+	documentsProvider.createFile(fileAttribs: file, atPath: "/", contents: data, completionHandler: nil)
 
 ### Copy and Move/Rename Files
 
-	// Copy file old.txt to new.txt in current path
-	documentsFileProvider.copyItemAtPath(path: "new folder/old.txt", toPath: "new.txt", overwrite: false, completionHandler: nil)
+Copy file old.txt to new.txt in current path:
 
-	// Move file old.txt to new.txt in current path
-	documentsFileProvider.moveItemAtPath(path: "new folder/old.txt", toPath: "new.txt", overwrite: false, completionHandler: nil)
+	documentsProvider.copyItemAtPath(path: "new folder/old.txt", toPath: "new.txt", overwrite: false, completionHandler: nil)
+
+Move file old.txt to new.txt in current path:
+
+	documentsProvider.moveItemAtPath(path: "new folder/old.txt", toPath: "new.txt", overwrite: false, completionHandler: nil)
 
 ### Delete Files
 
-	documentsFileProvider.removeItemAtPath(path: "new.txt", completionHandler: nil)
-
-***Caution:*** This method will not delete directories with content.
+	documentsProvider.removeItemAtPath(path: "new.txt", completionHandler: nil)
 
+***Caution:*** This method will delete directories with all it's content recursively.
 
 ### Retrieve Content of File
 
 THere is two method for this purpose, one of them loads entire file into NSData and another can load a portion of file.
 
-	documentsFileProvider.contentsAtPath(path: "old.txt:, completionHandler: {
+	documentsProvider.contentsAtPath(path: "old.txt", completionHandler: {
 		(contents: NSData?, error: ErrorType?) -> Void
 		if let contents = contents {
 			print(String(data: contents, encoding: NSUTF8StringEncoding)) // "hello world!"
@@ -197,7 +222,7 @@ THere is two method for this purpose, one of them loads entire file into NSData
 	
 If you want to retrieve a portion of file you should can `contentsAtPath` method with offset and length arguments. Please note first byte of file has offset: 0.
 
-	documentsFileProvider.contentsAtPath(path: "old.txt", offset: 2, length: 5, completionHandler: {
+	documentsProvider.contentsAtPath(path: "old.txt", offset: 2, length: 5, completionHandler: {
 		(contents: NSData?, error: ErrorType?) -> Void
 		if let contents = contents {
 			print(String(data: contents, encoding: NSUTF8StringEncoding)) // "llo w"
@@ -207,31 +232,43 @@ If you want to retrieve a portion of file you should can `contentsAtPath` method
 ### Write Data To Files
 
 	let data = "What's up Newyork!".dataUsingEncoding(NSUTF8StringEncoding)
-	documentsFileProvider.writeContentsAtPath(path: "old.txt", contents data: data, atomically: true, completionHandler: nil)
+	documentsProvider.writeContentsAtPath(path: "old.txt", contents data: data, atomically: true, completionHandler: nil)
 
 ### Monitoring FIle Changes
 
+You can monitor updates in some file system (Local and SMB2), there is three methods in supporting provider you can use to register a handler, to unregister and to check whether it's being monitored or not. It's useful to find out when new files added or removed from directory and update user interface. The handler will be dispatched to main threads to avoid UI bugs with a 0.25 sec delay.
+
+	documentsProvider.registerNotifcation(provider.currentPath)
+	{
+		// calling functions to update UI 
+	}
+	
+	// To discontinue monitoring folders:
+	documentsProvider.unregisterNotifcation(provider.currentPath)
+
+* **Please note** in LocalFileProvider it will also monitor changes in subfolders. This behaviour can varies according to file system specification.
+
 ## Contribute
 
 We would love for you to contribute to **FileProvider**, check the `LICENSE` file for more info.
 
 ## Meta
 
-Amir-Abbas Mousavia  – [@amosavian](https://twitter.com/amosavian)
+Amir-Abbas Mousavian  – [@amosavian](https://twitter.com/amosavian)
 
 Distributed under the MIT license. See `LICENSE` for more information.
 
 [https://github.com/yourname/github-link](https://github.com/dbader/)
 
-[swift-image]:https://img.shields.io/badge/swift-2.3-green.svg
+[swift-image]:https://img.shields.io/badge/swift-2.2-green.svg
 [swift-url]: https://swift.org/
 [license-image]: https://img.shields.io/badge/License-MIT-blue.svg
 [license-url]: LICENSE
+[codebeat-image]: https://codebeat.co/badges/7b359f48-78eb-4647-ab22-56262a827517
+[codebeat-url]: https://codebeat.co/projects/github-com-amosavian-fileprovider
+
 
 <!---
 [travis-image]: https://img.shields.io/travis/dbader/node-datadog-metrics/master.svg?style=flat-square
 [travis-url]: https://travis-ci.org/dbader/node-datadog-metrics
---->
-
-[codebeat-image]: https://codebeat.co/badges/c19b47ea-2f9d-45df-8458-b2d952fe9dad
-[codebeat-url]: https://codebeat.co/projects/github-com-vsouza-awesomeios-com
+--->

Source/SMBClient.swift

@@ -1,630 +0,0 @@
-//
-//  SMBTransmitter.swift
-//  FileProvider
-//
-//  Created by Amir Abbas Mousavian.
-//  Copyright © 2016 Mousavian. Distributed under MIT license.
-//
-
-import Foundation
-
-protocol SMBRequest {
-    func data() -> NSData
-}
-
-protocol SMBResponse {
-    init? (data: NSData)
-}
-
-internal func encode<T>(inout value: T) -> NSData {
-    return withUnsafePointer(&value) { p in
-        NSData(bytes: p, length: sizeofValue(value))
-    }
-}
-
-internal func decode<T>(data: NSData) -> T {
-    let pointer = UnsafeMutablePointer<T>.alloc(sizeof(T.Type))
-    data.getBytes(pointer, length: sizeof(T.Type))
-    
-    return pointer.move()
-}
-
-// This client implementation is for little-endian platform, namely x86, x64 & arm
-// For big-endian platforms like PowerPC, there must be a huge overhaul
-
-class SMBProtocolClient: TCPSocketClient {
-    var currentMessageID: UInt64 = 0
-    
-    func negotiateToSMB2() -> SMB2.NegotiateResponse? {
-        let smbHeader = SMB2.Header(command: .NEGOTIATE, creditRequestResponse: 126, messageId: messageId(), treeId: 0, sessionId: 0)
-        currentMessageID += 1
-        let negMessage = SMB2.NegotiateRequest(request: SMB2.NegotiateRequest.Header(capabilities: []))
-        SMBProtocolClient.createSMB2Message(smbHeader, message: negMessage)
-        do {
-            try self.send(data: nil)
-        } catch _ {
-            return nil
-        }
-        self.waitUntilResponse()
-        let response = try? SMBProtocolClient.digestSMB2Message(dataReceived)
-        return response??.message as? SMB2.NegotiateResponse
-    }
-    
-    func sessionSetupForSMB2() -> SMB2.SessionSetupResponse? {
-        return nil
-    }
-    
-    func messageId() -> UInt64 {
-        defer {
-            currentMessageID += 1
-        }
-        return currentMessageID
-    }
-    
-    // MARK: create and analyse messages
-    
-    class func determineSMBVersion(data: NSData) -> Float {
-        var smbverChar: Int8 = 0
-        data.getBytes(&smbverChar, length: 1)
-        let version = 0 - smbverChar
-        return Float(version)
-    }
-    
-    class func digestSMBMessage(data: NSData) throws -> (header: SMB1.Header, blocks: [(params: [UInt16], message: NSData?)]) {
-        guard data.length > 30 else {
-            throw NSURLError.BadServerResponse
-        }
-        var buffer = [UInt8](count: data.length, repeatedValue: 0)
-        guard determineSMBVersion(data) == 1 else {
-            throw SMBFileProviderError.IncompatibleHeader
-        }
-        let headersize = sizeof(SMB1.Header.self)
-        let header: SMB1.Header = decode(data)
-        var blocks = [(params: [UInt16], message: NSData?)]()
-        var offset = headersize
-        while offset < data.length {
-            let paramWords: [UInt16]
-            let paramWordsCount = Int(buffer[offset])
-            guard data.length > (paramWordsCount * 2 + offset) else {
-                throw SMBFileProviderError.IncorrectParamsLength
-            }
-            offset += sizeof(UInt8)
-            var rawParamWords = [UInt8](buffer[offset..<(offset + paramWordsCount * 2)])
-            let paramData = NSData(bytesNoCopy: &rawParamWords, length: rawParamWords.count)
-            paramWords = decode(paramData)
-            offset += paramWordsCount * 2
-            let messageBytesCountLittleEndian = [UInt8](buffer[offset...(offset + 1)])
-            let messageBytesCount = Int(UnsafePointer<UInt16>(messageBytesCountLittleEndian).memory)
-            offset += sizeof(UInt16)
-            guard data.length >= (offset + messageBytesCount) else {
-                throw SMBFileProviderError.IncorrectMessageLength
-            }
-            var rawMessage = [UInt8](buffer[offset..<(offset + messageBytesCount)])
-            offset += messageBytesCount
-            let message = NSData(bytes: &rawMessage, length: rawMessage.count)
-            blocks.append((params: paramWords, message: message))
-        }
-        return (header, blocks)
-    }
-    
-    class func digestSMB2Message(data: NSData) throws -> (header: SMB2.Header, message: SMBResponse?)? {
-        guard data.length > 65 else {
-            throw NSURLError.BadServerResponse
-        }
-        guard determineSMBVersion(data) == 2 else {
-            throw SMBFileProviderError.IncompatibleHeader
-        }
-        let headersize = sizeof(SMB2.Header.self)
-        let headerData = data.subdataWithRange(NSRange(location: 0, length: headersize))
-        let messageSize = data.length - headersize
-        let messageData = data.subdataWithRange(NSRange(location: headersize, length: messageSize))
-        let header: SMB2.Header = decode(headerData)
-        switch header.command {
-        case .NEGOTIATE:
-            return (header, SMB2.NegotiateResponse(data: messageData))
-        case .SESSION_SETUP:
-            return (header, SMB2.SessionSetupResponse(data: messageData))
-        case .LOGOFF:
-            return (header, SMB2.LogOff(data: messageData))
-        case .TREE_CONNECT:
-            return (header, SMB2.TreeConnectResponse(data: messageData))
-        case .TREE_DISCONNECT:
-            return (header, SMB2.TreeDisconnect(data: messageData))
-        case .CREATE:
-            return (header, SMB2.CreateResponse(data: messageData))
-        case .CLOSE:
-            return (header, SMB2.CloseResponse(data: messageData))
-        case .FLUSH:
-            return (header, SMB2.FlushResponse(data: messageData))
-        case .READ:
-            return (header, nil) // FIXME:
-        case .WRITE:
-            return (header, nil) // FIXME:
-        case .LOCK:
-            return (header, nil) // FIXME:
-        case .IOCTL:
-            return (header, nil)
-        case .CANCEL:
-            return (header, nil)
-        case .ECHO:
-            return (header, SMB2.Echo(data: messageData))
-        case .QUERY_DIRECTORY:
-            return (header, nil) // FIXME:
-        case .CHANGE_NOTIFY:
-            return (header, nil) // FIXME:
-        case .QUERY_INFO:
-            return (header, nil) // FIXME:
-        case .SET_INFO:
-            return (header, nil) // FIXME:
-        case .OPLOCK_BREAK:
-            return (header, nil) // FIXME:
-        case .INVALID:
-            throw SMBFileProviderError.InvalidCommand
-        }
-    }
-    
-    class func createSMBMessage(header: SMB1.Header, blocks: [(params: NSData?, message: NSData?)]) -> NSData {
-        var headerv = header
-        let result = NSMutableData(data: encode(&headerv))
-        for block in blocks {
-            var paramWordsCount = UInt8(block.params?.length ?? 0)
-            result.appendBytes(&paramWordsCount, length: sizeofValue(paramWordsCount))
-            if let params = block.params {
-                result.appendData(params)
-            }
-            var messageLen = UInt16(block.message?.length ?? 0)
-            result.appendBytes(&messageLen, length: sizeofValue(messageLen))
-            if let message = block.message {
-                result.appendData(message)
-            }
-        }
-        return result
-    }
-    
-    class func createSMB2Message(header: SMB2.Header, message: SMBRequest) -> NSData {
-        var headerv = header
-        let result = NSMutableData(data: encode(&headerv))
-        result.appendData(message.data())
-        return result
-    }
-}
-
-struct SMBTime {
-    var time: UInt64
-    
-    init(time: UInt64) {
-        self.time = time
-    }
-    
-    init(unixTime: UInt) {
-        self.time = (UInt64(unixTime) + 11644473600) * 10000000
-    }
-    
-    init(timeIntervalSince1970: NSTimeInterval) {
-        self.time = UInt64((timeIntervalSince1970 + 11644473600) * 10000000)
-    }
-    
-    init(date: NSDate) {
-        self.init(timeIntervalSince1970: date.timeIntervalSince1970)
-    }
-    
-    var unixTime: UInt {
-        return UInt(self.time / 10000000 - 11644473600)
-    }
-    
-    var date: NSDate {
-        return NSDate(timeIntervalSince1970: Double(self.time) / 10000000 - 11644473600)
-    }
-}
-
-protocol FileProviderSMBHeader {
-    var protocolID: UInt32 { get }
-    static var protocolConst: UInt32 { get }
-}
-
-// SMB/CIFS Types
-struct SMB1 {
-    struct Header { // 32 bytes
-        // header is always \u{ff}SMB
-        let protocolID: UInt32
-        static let protocolConst: UInt32 = 0x424d53ff
-        private var _command: UInt8
-        var command: Command {
-            get {
-                return Command(rawValue: _command) ?? .INVALID
-            }
-            set {
-                _command = newValue.rawValue
-            }
-        }
-        // error messages from the server to the client
-        private var _status: (UInt8, UInt8, UInt8, UInt8)
-        var error: (Class: UInt8, code: UInt16) {
-            get {
-                return (_status.0, UInt16(_status.2) + (UInt16(_status.3) << 8))
-            }
-            set {
-                _status = (newValue.Class, 0, UInt8(newValue.code & 0xff), UInt8(newValue.code >> 8))
-            }
-        }
-        var ntStatus: UInt32 {
-            get {
-                let statusLo = UInt32(_status.0) + UInt32(_status.1) << 8
-                let statusHi = UInt32(_status.2) + UInt32(_status.3) << 8
-                return statusHi << 16 + statusLo
-            }
-            set {
-                _status = (UInt8(newValue & 0xff), UInt8(newValue >> 8 & 0xff), UInt8(newValue >> 16 & 0xff), UInt8(newValue >> 24 & 0xff))
-            }
-        }
-        var flags: Flags
-        var flags2: Flags2
-        var pidHigh: UInt16
-        //  encryption key used for validating messages over connectionless transports
-        private var _securityKey: (UInt16, UInt16)
-        var securityKey: UInt32 {
-            get {
-                return UInt32(_securityKey.1) << 16 + UInt32(_securityKey.0)
-            }
-            set {
-                _securityKey = (UInt16(newValue & 0xffff), UInt16(newValue >> 16))
-            }
-        }
-        ///  Connection identifier
-        var securityCID: UInt16
-        ///  Identifier of the sequence of a message over connectionless transports
-        var securitySequenceNumber: UInt16
-        private var ununsed: UInt16
-        var treeId: UInt16
-        var pidLow: UInt16
-        var userId: UInt16
-        var multiplexId: UInt16
-        var pid: UInt32 {
-            get {
-                return UInt32(pidLow) + UInt32(pidHigh) << 16
-            }
-            set {
-                pidLow = UInt16(newValue & 0xffff)
-                pidHigh = UInt16(newValue >> 16)
-            }
-        }
-        
-        init(command: Command, ntStatus: UInt32 = 0, flags: Flags, flags2: Flags2 = [.LONG_NAMES, .ERR_STATUS, .UNICODE], securityKey: UInt32 = 0, securityCID: UInt16 = 0, securitySequenceNumber: UInt16 = 0, treeId: UInt16, pid: UInt32, userId: UInt16, multiplexId: UInt16) {
-            self.protocolID = Header.protocolConst
-            self._command = command.rawValue
-            _status = (UInt8(ntStatus & 0xff), UInt8(ntStatus >> 8 & 0xff), UInt8(ntStatus >> 16 & 0xff), UInt8(ntStatus >> 24 & 0xff))
-            self.flags = flags
-            self.flags2 = flags2
-            self._securityKey = (UInt16(securityKey & 0xffff), UInt16(securityKey >> 16))
-            self.securityCID = securityCID
-            self.securitySequenceNumber = securitySequenceNumber
-            self.ununsed = 0
-            self.treeId = treeId
-            self.pidLow = UInt16(pid & 0xffff)
-            self.pidHigh = UInt16(pid >> 16)
-            self.userId = userId
-            self.multiplexId = multiplexId
-        }
-    }
-    
-    struct Flags: OptionSetType {
-        let rawValue: UInt8
-        
-        init(rawValue: UInt8) {
-            self.rawValue = rawValue
-        }
-        /** This bit is set (1) in the NEGOTIATE (0x72) Response if the server supports
-         * LOCK_AND_READ (0x13) and WRITE_AND_UNLOCK (0x14) commands. */
-        static let LOCK_AND_READ_OK       = Flags(rawValue: 0x01)
-        static let BUF_AVAIL              = Flags(rawValue: 0x02)
-        static let CASE_INSENSITIVE       = Flags(rawValue: 0x08)
-        static let CANONICALIZED_PATHS    = Flags(rawValue: 0x10)
-        static let OPLOCK                 = Flags(rawValue: 0x20)
-        static let OPBATCH                = Flags(rawValue: 0x40)
-        /**  When on, this message is being sent from the server in response to a client request. */
-        static let REPLY                  = Flags(rawValue: 0x80)
-    }
-    
-    struct Flags2: OptionSetType {
-        let rawValue: UInt16
-        
-        init(rawValue: UInt16) {
-            self.rawValue = rawValue
-        }
-        /** Client: the message MAY contain long file names. */
-        static let LONG_NAMES             = Flags2(rawValue: 0x0001)
-        /** Client: the client is aware of extended attributes (EAs). */
-        static let EAS                    = Flags2(rawValue: 0x0002)
-        /** Client: the client is requesting signing (if signing is not yet active) or the message
-         * being sent is signed. This bit is used on the SMB header of an SESSION_SETUP_ANDX */
-        static let SMB_SECURITY_SIGNATURE = Flags2(rawValue: 0x0004)
-        ///  Reserved but not implemented.
-        static let IS_LONG_NAME           = Flags2(rawValue: 0x0040)
-        /** client aware of Extended Security negotiation */
-        static let EXT_SEC                = Flags2(rawValue:  0x0800)
-        /** any pathnames in this SMB SHOULD be resolved in the Distributed File System (DFS) */
-        static let DFS                    = Flags2(rawValue: 0x1000)
-        /**
-         * This flag is useful only on a read request. If the bit is set, then the client MAY read
-         * the file if the client does not have read permission but does have execute permission. */
-        static let PAGING_IO              = Flags2(rawValue:  0x2000) // READ_IF_EXECUTE
-        /**
-         * Client: the server MUST return errors as 32-bit NTSTATUS codes in the response
-         * Server: the Status field in the header is formatted as an NTSTATUS cod */
-        static let ERR_STATUS             = Flags2(rawValue: 0x4000)
-        /**
-         * Each field that contains a string in this SMB message MUST be encoded
-         * as an array of 16-bit Unicode characters */
-        static let UNICODE                = Flags2(rawValue: 0x8000)
-    }
-    
-    enum Command: UInt8 {
-        case CREATE_DIRECTORY       = 0x00
-        case DELETE_DIRECTORY       = 0x01
-        case OPEN                   = 0x02
-        case CREATE                 = 0x03
-        case CLOSE                  = 0x04
-        case FLUSH                  = 0x05
-        case DELETE                 = 0x06
-        case RENAME                 = 0x07
-        case QUERY_INFORMATION      = 0x08
-        case SET_INFORMATION        = 0x09
-        case READ                   = 0x0A
-        case WRITE                  = 0x0B
-        case LOCK_BYTE_RANGE        = 0x0C
-        case UNLOCK_BYTE_RANGE      = 0x0D
-        case CREATE_TEMPORARY       = 0x0E
-        case CREATE_NEW             = 0x0F
-        case CHECK_DIRECTORY        = 0x10
-        case PROCESS_EXIT           = 0x11
-        case SEEK                   = 0x12
-        case LOCK_AND_READ          = 0x13
-        case WRITE_AND_UNLOCK       = 0x14
-        case READ_RAW               = 0x1A
-        case READ_MPX               = 0x1B
-        case READ_MPX_SECONDARY     = 0x1C
-        case WRITE_RAW              = 0x1D
-        case WRITE_MPX              = 0x1E
-        case WRITE_COMPLETE         = 0x20
-        case SET_INFORMATION2       = 0x22
-        case QUERY_INFORMATION2     = 0x23
-        case LOCKING_ANDX           = 0x24
-        case TRANSACTION            = 0x25
-        case TRANSACTION_SECONDARY  = 0x26
-        case IOCTL                  = 0x27
-        case IOCTL_SECONDARY        = 0x28
-        case COPY                   = 0x29
-        case MOVE                   = 0x2A
-        case ECHO                   = 0x2B
-        case WRITE_AND_CLOSE        = 0x2C
-        case OPEN_ANDX              = 0x2D
-        case READ_ANDX              = 0x2E
-        case WRITE_ANDX             = 0x2F
-        case CLOSE_AND_TREE_DISC    = 0x31
-        case TRANSACTION2           = 0x32
-        case TRANSACTION2_SECONDARY = 0x33
-        case FIND_CLOSE2            = 0x34
-        case FIND_NOTIFY_CLOSE      = 0x35
-        case TREE_CONNECT           = 0x70
-        case TREE_DISCONNECT        = 0x71
-        case NEGOTIATE              = 0x72
-        case SESSION_SETUP_ANDX     = 0x73
-        case LOGOFF_ANDX            = 0x74
-        case TREE_CONNECT_ANDX      = 0x75
-        case QUERY_INFORMATION_DISK = 0x80
-        case SEARCH                 = 0x81
-        case FIND                   = 0x82
-        case FIND_UNIQUE            = 0x83
-        case NT_TRANSACT            = 0xA0
-        case NT_TRANSACT_SECONDARY  = 0xA1
-        case NT_CREATE_ANDX         = 0xA2
-        case NT_CANCEL              = 0xA4
-        case OPEN_PRINT_FILE        = 0xC0
-        case WRITE_PRINT_FILE       = 0xC1
-        case CLOSE_PRINT_FILE       = 0xC2
-        case GET_PRINT_QUEUE        = 0xC3
-        case READ_BULK              = 0xD8
-        case WRITE_BULK             = 0xD9
-        case WRITE_BULK_DATA        = 0xDA
-        case INVALID                = 0xFE
-    }
-}
-
-/// Error Types and Description
-
-enum NTStatus: UInt32, ErrorType, CustomStringConvertible {
-    case SUCCESS                        = 0x00000000
-    case NOT_IMPLEMENTED                = 0xC0000002
-    case INVALID_DEVICE_REQUEST         = 0xC0000010
-    case ILLEGAL_FUNCTION               = 0xC00000AF
-    case NO_SUCH_FILE                   = 0xC000000F
-    case NO_SUCH_DEVICE                 = 0xC000000E
-    case OBJECT_NAME_NOT_FOUND          = 0xC0000034
-    case OBJECT_PATH_INVALID            = 0xC0000039
-    case OBJECT_PATH_NOT_FOUND          = 0xC000003A
-    case OBJECT_PATH_SYNTAX_BAD         = 0xC000003B
-    case DFS_EXIT_PATH_FOUND            = 0xC000009B
-    case REDIRECTOR_NOT_STARTED         = 0xC00000FB
-    case TOO_MANY_OPENED_FILES          = 0xC000011F
-    case ACCESS_DENIED                  = 0xC0000022
-    case INVALID_LOCK_SEQUENCE          = 0xC000001E
-    case INVALID_VIEW_SIZE              = 0xC000001F
-    case ALREADY_COMMITTED              = 0xC0000021
-    case PORT_CONNECTION_REFUSED        = 0xC0000041
-    case THREAD_IS_TERMINATING          = 0xC000004B
-    case DELETE_PENDING                 = 0xC0000056
-    case PRIVILEGE_NOT_HELD             = 0xC0000061
-    case LOGON_FAILURE                  = 0xC000006D
-    case FILE_IS_A_DIRECTORY            = 0xC00000BA
-    case FILE_RENAMED                   = 0xC00000D5
-    case PROCESS_IS_TERMINATING         = 0xC000010A
-    case DIRECTORY_NOT_EMPTY            = 0xC0000101
-    case CANNOT_DELETE                  = 0xC0000121
-    case FILE_NOT_AVAILABLE             = 0xC0000467
-    case FILE_DELETED                   = 0xC0000123
-    case SMB_BAD_FID                    = 0x00060001
-    case INVALID_HANDLE                 = 0xC0000008
-    case OBJECT_TYPE_MISMATCH           = 0xC0000024
-    case PORT_DISCONNECTED              = 0xC0000037
-    case INVALID_PORT_HANDLE            = 0xC0000042
-    case FILE_CLOSED                    = 0xC0000128
-    case HANDLE_NOT_CLOSABLE            = 0xC0000235
-    case SECTION_TOO_BIG                = 0xC0000040
-    case TOO_MANY_PAGING_FILES          = 0xC0000097
-    case INSUFF_SERVER_RESOURCES        = 0xC0000205
-    case OS2_INVALID_ACCESS             = 0x000C0001
-    case ACCESS_DENIED_2                = 0xC00000CA
-    case DATA_ERROR                     = 0xC000009C
-    case NOT_SAME_DEVICE                = 0xC00000D4
-    case NO_MORE_FILES                  = 0x80000006
-    case NO_MORE_ENTRIES                = 0x8000001A
-    case UNSUCCESSFUL                   = 0xC0000001
-    case SHARING_VIOLATION              = 0xC0000043
-    case FILE_LOCK_CONFLICT             = 0xC0000054
-    case LOCK_NOT_GRANTED               = 0xC0000055
-    case END_OF_FILE                    = 0xC0000011
-    case NOT_SUPPORTED                  = 0xC00000BB
-    case OBJECT_NAME_COLLISION          = 0xC0000035
-    case INVALID_PARAMETER              = 0xC000000D
-    case OS2_INVALID_LEVEL              = 0x007C0001
-    case OS2_NEGATIVE_SEEK              = 0x00830001
-    case RANGE_NOT_LOCKED               = 0xC000007E
-    case OS2_NO_MORE_SIDS               = 0x00710001
-    case OS2_CANCEL_VIOLATION           = 0x00AD0001
-    case OS2_ATOMIC_LOCKS_NOT_SUPPORTED = 0x00AE0001
-    case INVALID_INFO_CLASS             = 0xC0000003
-    case INVALID_PIPE_STATE             = 0xC00000AD
-    case INVALID_READ_MODE              = 0xC00000B4
-    case OS2_CANNOT_COPY                = 0x010A0001
-    case STOPPED_ON_SYMLINK             = 0x8000002D
-    case INSTANCE_NOT_AVAILABLE         = 0xC00000AB
-    case PIPE_NOT_AVAILABLE             = 0xC00000AC
-    case PIPE_BUSY                      = 0xC00000AE
-    case PIPE_CLOSING                   = 0xC00000B1
-    case PIPE_EMPTY                     = 0xC00000D9
-    case PIPE_DISCONNECTED              = 0xC00000B0
-    case BUFFER_OVERFLOW                = 0x80000005
-    case MORE_PROCESSING_REQUIRED       = 0xC0000016
-    case EA_TOO_LARGE                   = 0xC0000050
-    case OS2_EAS_DIDNT_FIT              = 0x01130001
-    case EAS_NOT_SUPPORTED              = 0xC000004F
-    case EA_LIST_INCONSISTENT           = 0x80000014
-    case OS2_EA_ACCESS_DENIED           = 0x03E20001
-    case NOTIFY_ENUM_DIR                = 0x0000010C
-    case INVALID_SMB                    = 0x00010002
-    case WRONG_PASSWORD                 = 0xC000006A
-    case PATH_NOT_COVERED               = 0xC0000257
-    case NETWORK_NAME_DELETED           = 0xC00000C9
-    case SMB_BAD_TID                    = 0x00050002
-    case BAD_NETWORK_NAME               = 0xC00000CC
-    case BAD_DEVICE_TYPE                = 0xC00000CB
-    case SMB_BAD_COMMAND                = 0x00160002
-    case PRINT_QUEUE_FULL               = 0xC00000C6
-    case NO_SPOOL_SPACE                 = 0xC00000C7
-    case PRINT_CANCELLED                = 0xC00000C8
-    case UNEXPECTED_NETWORK_ERROR       = 0xC00000C4
-    case IO_TIMEOUT                     = 0xC00000B5
-    case REQUEST_NOT_ACCEPTED           = 0xC00000D0
-    case TOO_MANY_SESSIONS              = 0xC00000CE
-    case SMB_BAD_UID                    = 0x005B0002
-    case SMB_USE_MPX                    = 0x00FA0002
-    case SMB_USE_STANDARD               = 0x00FB0002
-    case SMB_CONTINUE_MPX               = 0x00FC0002
-    case ACCOUNT_DISABLED               = 0xC0000072
-    case ACCOUNT_EXPIRED                = 0xC0000193
-    case INVALID_WORKSTATION            = 0xC0000070
-    case INVALID_LOGON_HOURS            = 0xC000006F
-    case PASSWORD_EXPIRED               = 0xC0000071
-    case PASSWORD_MUST_CHANGE           = 0xC0000224
-    case SMB_NO_SUPPORT                 = 0xFFFF0002
-    case MEDIA_WRITE_PROTECTED          = 0xC00000A2
-    case NO_MEDIA_IN_DEVICE             = 0xC0000013
-    case INVALID_DEVICE_STATE           = 0xC0000184
-    case DATA_ERROR_2                   = 0xC000003E
-    case CRC_ERROR                      = 0xC000003F
-    case DISK_CORRUPT_ERROR             = 0xC0000032
-    case NONEXISTENT_SECTOR             = 0xC0000015
-    case DEVICE_PAPER_EMPTY             = 0x8000000E
-    case WRONG_VOLUME                   = 0xC0000012
-    case DISK_FULL                      = 0xC000007F
-    case BUFFER_TOO_SMALL               = 0xC0000023
-    case BAD_IMPERSONATION_LEVEL        = 0xC00000A5
-    case USER_SESSION_DELETED           = 0xC0000203
-    case NETWORK_SESSION_EXPIRED        = 0xC000035C
-    case SMB_TOO_MANY_UIDS              = 0xC000205A
-    
-    var description: String {
-        switch self {
-        case NOT_IMPLEMENTED, INVALID_DEVICE_REQUEST, ILLEGAL_FUNCTION:
-            return "Invalid Function."
-        case NO_SUCH_FILE, NO_SUCH_DEVICE, OBJECT_NAME_NOT_FOUND:
-            return "File not found."
-        case OBJECT_PATH_INVALID, OBJECT_PATH_NOT_FOUND, OBJECT_PATH_SYNTAX_BAD, DFS_EXIT_PATH_FOUND, REDIRECTOR_NOT_STARTED:
-            return "A component in the path prefix is not a directory."
-        case TOO_MANY_OPENED_FILES:
-            return "Too many open files. No FIDs are available."
-        case ACCESS_DENIED, INVALID_LOCK_SEQUENCE, INVALID_VIEW_SIZE, ALREADY_COMMITTED, PORT_CONNECTION_REFUSED, THREAD_IS_TERMINATING, DELETE_PENDING, PRIVILEGE_NOT_HELD, LOGON_FAILURE, FILE_IS_A_DIRECTORY, FILE_RENAMED, PROCESS_IS_TERMINATING, CANNOT_DELETE, FILE_DELETED:
-            return "Access denied."
-        case SMB_BAD_FID, INVALID_HANDLE, OBJECT_TYPE_MISMATCH, PORT_DISCONNECTED, INVALID_PORT_HANDLE, FILE_CLOSED, HANDLE_NOT_CLOSABLE:
-            return "Invalid FID."
-        case SECTION_TOO_BIG, TOO_MANY_PAGING_FILES, INSUFF_SERVER_RESOURCES:
-            return "Insufficient server memory to perform the requested operation."
-        case OS2_INVALID_ACCESS:
-            return "Invalid open mode."
-        case DATA_ERROR:
-            return "Bad data. (May be generated by IOCTL calls on the server.)"
-        case DIRECTORY_NOT_EMPTY:
-            return "Remove of directory failed because it was not empty."
-        case NOT_SAME_DEVICE:
-            return "A file system operation (such as a rename) across two devices was attempted."
-        case NO_MORE_FILES:
-            return "No (more) files found following a file search command."
-        case UNSUCCESSFUL:
-            return "General error."
-        case SHARING_VIOLATION:
-            return "Sharing violation. A requested open mode conflicts with the sharing mode of an existing file handle."
-        case FILE_LOCK_CONFLICT, LOCK_NOT_GRANTED:
-            return "A lock request specified an invalid locking mode, or conflicted with an existing file lock."
-        case END_OF_FILE:
-            return "Attempted to read beyond the end of the file."
-        case NOT_SUPPORTED:
-            return "This command is not supported by the server."
-        case OBJECT_NAME_COLLISION:
-            return "An attempt to create a file or directory failed because an object with the same pathname already exists."
-        case INVALID_PARAMETER:
-            return "A parameter supplied with the message is invalid."
-        case OS2_INVALID_LEVEL:
-            return "Invalid information level."
-        case OS2_NEGATIVE_SEEK:
-            return "An attempt was made to seek to a negative absolute offset within a file."
-        case RANGE_NOT_LOCKED:
-            return "The byte range specified in an unlock request was not locked."
-        case OS2_NO_MORE_SIDS:
-            return "Maximum number of searches has been exhausted."
-        case OS2_CANCEL_VIOLATION:
-            return "No lock request was outstanding for the supplied cancel region."
-        case OS2_ATOMIC_LOCKS_NOT_SUPPORTED:
-            return "The file system does not support atomic changes to the lock type."
-        case INVALID_INFO_CLASS, INVALID_PIPE_STATE, INVALID_READ_MODE:
-            return "Invalid named pipe."
-        case OS2_CANNOT_COPY:
-            return "The copy functions cannot be used."
-        case INSTANCE_NOT_AVAILABLE, PIPE_NOT_AVAILABLE, PIPE_BUSY:
-            return "All instances of the designated named pipe are busy."
-        case PIPE_CLOSING, PIPE_EMPTY:
-            return "The designated named pipe is in the process of being closed."
-        case PIPE_DISCONNECTED:
-            return "The designated named pipe exists, but there is no server process listening on the server side."
-        case BUFFER_OVERFLOW, MORE_PROCESSING_REQUIRED:
-            return "There is more data available to read on the designated named pipe."
-        case EA_TOO_LARGE, OS2_EAS_DIDNT_FIT:
-            return "Either there are no extended attributes, or the available extended attributes did not fit into the response."
-        case EAS_NOT_SUPPORTED:
-            return "The server file system does not support Extended Attributes."
-        case OS2_EA_ACCESS_DENIED:
-            return "Access to the extended attribute was denied."
-        default:
-            return ""
-        }
-    }
-}

Sources/DropboxFileProvider.swift

@@ -0,0 +1,385 @@
+//
+//  DropboxFileProvider.swift
+//  FileProvider
+//
+//  Created by Amir Abbas Mousavian.
+//  Copyright © 2016 Mousavian. Distributed under MIT license.
+//
+
+import Foundation
+
+public enum FileProviderDropboxErrorCode: Int {
+    case BadInputParameter = 400
+    case ExpiredToken = 401
+    case Forbidden = 403
+    case Endpoint = 409
+    case TooManyRequests = 429
+    case InternalServer = 500
+    case BadGateway = 502
+}
+
+public struct FileProviderDropboxError: ErrorType, CustomStringConvertible {
+    let code: FileProviderDropboxErrorCode
+    let path: String
+    
+    public var description: String {
+        switch code {
+        case .BadInputParameter: return "Bad input parameter."
+        case .ExpiredToken: return "Bad or expired token. To fix this, you should re-authenticate the user."
+        case .Forbidden: return "Forbidden."
+        case .Endpoint: return "Endpoint-specific error."
+        case .TooManyRequests: return "Your app is making too many requests"
+        case .InternalServer: return "An error occurred on the Dropbox servers."
+        case .BadGateway: return "An error occurred on the Dropbox servers."
+        }
+    }
+}
+
+public final class DropboxFileObject: FileObject {
+    let serverTime: NSDate?
+    let id: String?
+    let rev: String?
+    
+    init(absoluteURL: NSURL, name: String, path: String, size: Int64, serverTime: NSDate?, createdDate: NSDate?, modifiedDate: NSDate?, fileType: FileType, isHidden: Bool, isReadOnly: Bool, id: String?, rev: String?) {
+        self.serverTime = serverTime
+        self.id = id
+        self.rev = rev
+        super.init(absoluteURL: absoluteURL, name: name, path: path, size: size, createdDate: createdDate, modifiedDate: modifiedDate, fileType: fileType, isHidden: isHidden, isReadOnly: isReadOnly)
+    }
+}
+
+// Because this class uses NSURLSession, it's necessary to disable App Transport Security
+// in case of using this class with unencrypted HTTP connection.
+
+public class DropboxFileProvider: NSObject,  FileProviderBasic {
+    public let type: String = "WebDAV"
+    public let isPathRelative: Bool = true
+    public let baseURL: NSURL?
+    public var currentPath: String = ""
+    public var dispatch_queue: dispatch_queue_t {
+        willSet {
+            assert(_session == nil, "It's not effective to change dispatch_queue property after session is initialized.")
+        }
+    }
+    public weak var delegate: FileProviderDelegate?
+    public let credential: NSURLCredential?
+    
+    private var _session: NSURLSession?
+    private var session: NSURLSession {
+        if _session == nil {
+            let queue = NSOperationQueue()
+            //queue.underlyingQueue = dispatch_queue
+            _session = NSURLSession(configuration: NSURLSessionConfiguration.defaultSessionConfiguration(), delegate: self, delegateQueue: queue)
+        }
+        return _session!
+    }
+    
+    init? (baseURL: NSURL, credential: NSURLCredential?) {
+        if  !["http", "https"].contains(baseURL.scheme.lowercaseString) {
+            return nil
+        }
+        self.baseURL = baseURL
+        dispatch_queue = dispatch_queue_create("FileProvider.\(type)", DISPATCH_QUEUE_CONCURRENT)
+        //let url = baseURL.absoluteString
+        self.credential = credential
+    }
+    
+    deinit {
+        _session?.invalidateAndCancel()
+    }
+    
+    public func contentsOfDirectoryAtPath(path: String, completionHandler: ((contents: [FileObject], error: ErrorType?) -> Void)) {
+        NotImplemented()
+    }
+    
+    public func attributesOfItemAtPath(path: String, completionHandler: ((attributes: FileObject?, error: ErrorType?) -> Void)) {
+        let url = NSURL(string: "https://api.dropboxapi.com/2/files/list_revisions")!
+        let request = NSMutableURLRequest(URL: url)
+        request.HTTPMethod = "POST"
+        request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
+        request.setValue("application/json", forHTTPHeaderField: "Content-Type")
+        let requestDictionary = ["path": correctPath(path)!]
+        request.HTTPBody = dictionaryToJSON(requestDictionary)?.dataUsingEncoding(NSUTF8StringEncoding)
+        let task = session.dataTaskWithRequest(request) { (data, response, error) in
+            if let response = response as? NSHTTPURLResponse {
+                defer {
+                    self.delegateNotify(FileOperation.Create(path: path), error: error)
+                }
+                let code = FileProviderDropboxErrorCode(rawValue: response.statusCode)
+                let dbError: FileProviderDropboxError? = code != nil ? FileProviderDropboxError(code: code!, path: path) : nil
+                if let data = data, let jsonStr = String(data: data, encoding: NSUTF8StringEncoding) {
+                    let json = self.jsonToDictionary(jsonStr)
+                    if (json?["is_deleted"] as? NSNumber)?.boolValue ?? false, let entries = json?["entries"] as? [AnyObject] where entries.count > 0 , let entry = entries[0] as? [String: AnyObject], let file = self.mapToFileObject(entry) {
+                        completionHandler(attributes: file, error: dbError)
+                        return
+                    }
+                }
+                completionHandler(attributes: nil, error: dbError)
+                return
+            }
+            completionHandler(attributes: nil, error: error)
+        }
+        task.resume()
+    }
+    
+    public weak var fileOperationDelegate: FileOperationDelegate?
+}
+
+extension DropboxFileProvider: FileProviderOperations {
+    public func createFolder(folderName: String, atPath: String, completionHandler: SimpleCompletionHandler) {
+        let path = (atPath as NSString).stringByAppendingPathComponent(folderName) + "/"
+        doOperation(.Create(path: path), completionHandler: completionHandler)
+    }
+    
+    public func createFile(fileAttribs: FileObject, atPath path: String, contents data: NSData?, completionHandler: SimpleCompletionHandler) {
+        NotImplemented()
+    }
+    
+    public func moveItemAtPath(path: String, toPath: String, overwrite: Bool = false, completionHandler: SimpleCompletionHandler) {
+        doOperation(.Move(source: path, destination: toPath), completionHandler: completionHandler)
+    }
+    
+    public func copyItemAtPath(path: String, toPath: String, overwrite: Bool = false, completionHandler: SimpleCompletionHandler) {
+        doOperation(.Copy(source: path, destination: toPath), completionHandler: completionHandler)
+    }
+    
+    public func removeItemAtPath(path: String, completionHandler: SimpleCompletionHandler) {
+        doOperation(.Remove(path: path), completionHandler: completionHandler)
+    }
+    
+    private func doOperation(operation: FileOperation, completionHandler: SimpleCompletionHandler) {
+        let url: String
+        var path: String?, fromPath: String?, toPath: String?
+        switch operation {
+        case .Create(path: let p):
+            url = "https://api.dropboxapi.com/2/files/create_folder"
+            path = p
+        case .Copy(source: let fp, destination: let tp):
+            url = "https://api.dropboxapi.com/2/files/copy"
+            fromPath = fp
+            toPath = tp
+        case .Move(source: let fp, destination: let tp):
+            url = "https://api.dropboxapi.com/2/files/move"
+            fromPath = fp
+            toPath = tp
+        case .Modify(path: let p):
+            return
+        case .Remove(path: let p):
+            url = "https://api.dropboxapi.com/2/files/delete"
+            path = p
+        case .Link(link: _, target: _):
+            return
+        }
+        let request = NSMutableURLRequest(URL: NSURL(string: url)!)
+        request.HTTPMethod = "POST"
+        request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
+        request.setValue("application/json", forHTTPHeaderField: "Content-Type")
+        var requestDictionary = [String: AnyObject]()
+        requestDictionary["path"] = correctPath(path)
+        requestDictionary["from_path"] = correctPath(fromPath)
+        requestDictionary["to_path"] = correctPath(toPath)
+        request.HTTPBody = dictionaryToJSON(requestDictionary)?.dataUsingEncoding(NSUTF8StringEncoding)
+        let task = session.dataTaskWithRequest(request) { (data, response, error) in
+            if let response = response as? NSHTTPURLResponse {
+                let code = FileProviderDropboxErrorCode(rawValue: response.statusCode)
+                let dbError: FileProviderDropboxError? = code != nil ? FileProviderDropboxError(code: code!, path: path ?? fromPath ?? "") : nil
+                defer {
+                    self.delegateNotify(operation, error: error ?? dbError)
+                }
+                /*if let data = data, let jsonStr = String(data: data, encoding: NSUTF8StringEncoding) {
+                 let json = self.jsonToDictionary(jsonStr)
+                 }*/
+                completionHandler?(error: dbError)
+                return
+            }
+            completionHandler?(error: error)
+        }
+        task.resume()
+    }
+    
+    public func copyLocalFileToPath(localFile: NSURL, toPath: String, completionHandler: SimpleCompletionHandler) {
+        NotImplemented()
+        let request = NSMutableURLRequest(URL: absoluteURL(toPath))
+        request.HTTPMethod = "PUT"
+        let task = session.uploadTaskWithRequest(request, fromFile: localFile) { (data, response, error) in
+            completionHandler?(error: error)
+            self.delegateNotify(.Move(source: localFile.absoluteString, destination: toPath), error: error)
+        }
+        task.taskDescription = self.dictionaryToJSON(["type": "Copy", "source": localFile.absoluteString, "dest": toPath])
+        task.resume()
+    }
+    
+    public func copyPathToLocalFile(path: String, toLocalURL: NSURL, completionHandler: SimpleCompletionHandler) {
+        NotImplemented()
+        let request = NSMutableURLRequest(URL: absoluteURL(path))
+        let task = session.downloadTaskWithRequest(request) { (sourceFileURL, response, error) in
+            if let sourceFileURL = sourceFileURL {
+                do {
+                    try NSFileManager.defaultManager().copyItemAtURL(sourceFileURL, toURL: toLocalURL)
+                } catch let e {
+                    completionHandler?(error: e)
+                    return
+                }
+            }
+            completionHandler?(error: error)
+        }
+        task.taskDescription = self.dictionaryToJSON(["type": "Copy", "source": path, "dest": toLocalURL.absoluteString])
+        task.resume()
+    }
+}
+
+extension DropboxFileProvider: FileProviderReadWrite {
+    public func contentsAtPath(path: String, completionHandler: ((contents: NSData?, error: ErrorType?) -> Void)) {
+        self.contentsAtPath(path, offset: 0, length: -1, completionHandler: completionHandler)
+    }
+    
+    public func contentsAtPath(path: String, offset: Int64, length: Int, completionHandler: ((contents: NSData?, error: ErrorType?) -> Void)) {
+        
+        let url = NSURL(string: "https://api.dropboxapi.com/2/files/download")!
+        let request = NSMutableURLRequest(URL: url)
+        request.HTTPMethod = "GET"
+        request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
+        request.setValue("application/json", forHTTPHeaderField: "Content-Type")
+        if length > 0 {
+            request.setValue("bytes=\(offset)-\(offset + length)", forHTTPHeaderField: "Range")
+        } else if offset > 0 && length < 0 {
+            request.setValue("bytes=\(offset)-", forHTTPHeaderField: "Range")
+        }
+        let requestDictionary = ["path": path]
+        request.setValue(dictionaryToJSON(requestDictionary), forHTTPHeaderField: "Dropbox-API-Arg")
+        let task = session.downloadTaskWithRequest(request, completionHandler: { (cacheURL, response, error) in
+            guard let cacheURL = cacheURL, let httpResponse = response as? NSHTTPURLResponse where httpResponse.statusCode < 300 else {
+                let code = FileProviderDropboxErrorCode(rawValue: (response as? NSHTTPURLResponse)?.statusCode ?? -1)
+                let dbError: FileProviderDropboxError? = code != nil ? FileProviderDropboxError(code: code!, path: path) : nil
+                completionHandler(contents: nil, error: dbError ?? error)
+                return
+            }
+            let destURL = NSURL(fileURLWithPath: NSTemporaryDirectory()).URLByAppendingPathComponent(cacheURL.lastPathComponent ?? "tmpfile")
+            do {
+                try NSFileManager.defaultManager().moveItemAtURL(cacheURL, toURL: destURL)
+                completionHandler(contents: NSData(contentsOfURL: destURL), error: error)
+            } catch let e {
+                completionHandler(contents: nil, error: e)
+            }
+        })
+        task.resume()
+    }
+    
+    public func writeContentsAtPath(path: String, contents data: NSData, atomically: Bool = false, completionHandler: SimpleCompletionHandler) {
+        NotImplemented()
+        let url = atomically ? absoluteURL(path).URLByAppendingPathExtension("tmp") : absoluteURL(path)
+        let request = NSMutableURLRequest(URL: url)
+        request.HTTPMethod = "PUT"
+        let task = session.uploadTaskWithRequest(request, fromData: data) { (data, response, error) in
+            defer {
+                self.delegateNotify(.Modify(path: path), error: error)
+            }
+            if atomically {
+                self.moveItemAtPath((path as NSString).stringByAppendingPathExtension("tmp")!, toPath: path, completionHandler: completionHandler)
+            }
+            if let error = error {
+                // If there is no error, completionHandler has been executed by move command
+                completionHandler?(error: error)
+            }
+        }
+        task.taskDescription = self.dictionaryToJSON(["type": "Modify", "source": path])
+        task.resume()
+    }
+    
+    public func searchFilesAtPath(path: String, recursive: Bool, query: String, foundItemHandler: ((FileObject) -> Void)?, completionHandler: ((files: [FileObject], error: ErrorType?) -> Void)) {
+        NotImplemented()
+    }
+    
+    private func registerNotifcation(path: String, eventHandler: (() -> Void)) {
+        /* There is two ways to monitor folders chaging in Dropbox. Either using webooks
+         * which means you have to implement a server to translate it to push notifications
+         * or using apiv2 list_folder/longpoll method. The second one is implemeted here.
+         * Tough webhooks are much more efficient, longpoll is much simpler to implement!
+         * You can implemnt your own webhook service and replace this method accordingly.
+         */
+        NotImplemented()
+    }
+    private func unregisterNotifcation(path: String) {
+        NotImplemented()
+    }
+}
+
+internal extension DropboxFileProvider {
+    private func mapToFileObject(jsonStr: String) -> DropboxFileObject? {
+        guard let json = self.jsonToDictionary(jsonStr) else { return nil }
+        return self.mapToFileObject(json)
+    }
+    
+    private func mapToFileObject(json: [String: AnyObject]) -> DropboxFileObject? {
+        guard let name = json["name"] as? String else { return nil }
+        guard let path = json["path_display"] as? String else { return nil }
+        let href = NSURL(string: path)!
+        let size = (json["size"] as? NSNumber)?.longLongValue ?? -1
+        let serverTime = resolveDate(json["server_modified"] as? String ?? "")
+        let modifiedDate = resolveDate(json["client_modified"] as? String ?? "")
+        let isDirectory = (json[".tag"] as? String) == "folder"
+        let isReadonly = (json["sharing_info"]?["read_only"] as? NSNumber)?.boolValue ?? false
+        let id = json["id"] as? String
+        let rev = json["id"] as? String
+        return DropboxFileObject(absoluteURL: href, name: name, path: path, size: size, serverTime: serverTime, createdDate: nil, modifiedDate: modifiedDate, fileType: isDirectory ? .Directory : .Regular, isHidden: false, isReadOnly: isReadonly, id: id, rev: rev)
+    }
+    
+    private func delegateNotify(operation: FileOperation, error: ErrorType?) {
+        dispatch_async(dispatch_get_main_queue(), {
+            if error == nil {
+                self.delegate?.fileproviderSucceed(self, operation: operation)
+            } else {
+                self.delegate?.fileproviderFailed(self, operation: operation)
+            }
+        })
+    }
+}
+
+// MARK: URLSession delegate
+extension DropboxFileProvider: NSURLSessionDataDelegate, NSURLSessionDownloadDelegate {
+    public func URLSession(session: NSURLSession, downloadTask: NSURLSessionDownloadTask, didFinishDownloadingToURL location: NSURL) {
+        return
+    }
+    
+    public func URLSession(session: NSURLSession, task: NSURLSessionTask, didSendBodyData bytesSent: Int64, totalBytesSent: Int64, totalBytesExpectedToSend: Int64) {
+        guard let desc = task.taskDescription, let json = jsonToDictionary(desc) else {
+            return
+        }
+        guard let type = json["type"] as? String, let source = json["source"] as? String else {
+            return
+        }
+        let dest = json["dest"] as? String
+        let op : FileOperation
+        switch type {
+        case "Create":
+            op = .Create(path: source)
+        case "Copy":
+            guard let dest = dest else { return }
+            op = .Copy(source: source, destination: dest)
+        case "Move":
+            guard let dest = dest else { return }
+            op = .Move(source: source, destination: dest)
+        case "Modify":
+            op = .Modify(path: source)
+        case "Remove":
+            op = .Remove(path: source)
+        case "Link":
+            guard let dest = dest else { return }
+            op = .Link(link: source, target: dest)
+        default:
+            return
+        }
+        
+        let progress = Float(totalBytesSent) / Float(totalBytesExpectedToSend)
+        
+        self.delegate?.fileproviderProgress(self, operation: op, progress: progress)
+    }
+    
+    public func URLSession(session: NSURLSession, downloadTask: NSURLSessionDownloadTask, didWriteData bytesWritten: Int64, totalBytesWritten: Int64, totalBytesExpectedToWrite: Int64) {
+        guard let desc = downloadTask.taskDescription, let json = jsonToDictionary(desc), let source = json["source"] as? String, dest = json["dest"] as? String else {
+            return
+        }
+        
+        self.delegate?.fileproviderProgress(self, operation: .Copy(source: source, destination: dest), progress: Float(totalBytesWritten) / Float(totalBytesExpectedToWrite))
+    }
+}

Sources/FileProvider.h

@@ -0,0 +1,35 @@
+//
+//  FileProvider iOS.h
+//  FileProvider iOS
+//
+//  Created by Amir Abbas Mousavian on 5/6/95.
+//
+//
+#if TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR
+#import <UIKit/UIKit.h>
+//! Project version number for FileProvider iOS.
+FOUNDATION_EXPORT double FileProvider_iOSVersionNumber;
+//! Project version string for FileProvider iOS.
+FOUNDATION_EXPORT const unsigned char FileProvider_iOSVersionString[];
+
+#elif defined TARGET_OS_TV
+#import <UIKit/UIKit.h>
+//! Project version number for FileProvider tvOS.
+FOUNDATION_EXPORT double FileProvider_tvOSVersionNumber;
+//! Project version string for FileProvider tvOS.
+FOUNDATION_EXPORT const unsigned char FileProvider_tvOSVersionString[];
+
+#elif defined TARGET_OS_MAC
+#import <Cocoa/Cocoa.h>
+//! Project version number for FileProvider OSX.
+FOUNDATION_EXPORT double FileProvider_OSXVersionNumber;
+//! Project version string for FileProvider OSX.
+FOUNDATION_EXPORT const unsigned char FileProvider_OSXVersionString[];
+
+#else
+// Unsupported platform
+#endif
+
+// In this header, you should import all the public headers of your framework using statements like #import <FileProvider_iOS/PublicHeader.h>
+
+

Sources/FileProvider.swift

@@ -7,11 +7,12 @@
 //
 
 import Foundation
-#if (iOS)
+#if os(iOS) || os(tvOS)
 import UIKit
-#endif
-#if (OSX)
-import AppKit
+public typealias ImageClass = UIImage
+#elseif os(OSX)
+import Cocoa
+public typealias ImageClass = NSImage
 #endif
 
 public enum FileType: String {
@@ -63,6 +64,7 @@ extension NSCocoaError: FoundationErrorEnum {}
 public class FileObject {
     let absoluteURL: NSURL?
     let name: String
+    let path: String
     let size: Int64
     let createdDate: NSDate?
     let modifiedDate: NSDate?
@@ -70,9 +72,10 @@ public class FileObject {
     let isHidden: Bool
     let isReadOnly: Bool
     
-    init(absoluteURL: NSURL, name: String, size: Int64, createdDate: NSDate?, modifiedDate: NSDate?, fileType: FileType, isHidden: Bool, isReadOnly: Bool) {
+    init(absoluteURL: NSURL?, name: String, path: String, size: Int64, createdDate: NSDate?, modifiedDate: NSDate?, fileType: FileType, isHidden: Bool, isReadOnly: Bool) {
         self.absoluteURL = absoluteURL
         self.name = name
+        self.path = path
         self.size = size
         self.createdDate = createdDate
         self.modifiedDate = modifiedDate
@@ -81,9 +84,10 @@ public class FileObject {
         self.isReadOnly = isReadOnly
     }
     
-    init(name: String, createdDate: NSDate?, modifiedDate: NSDate?, isHidden: Bool, isReadOnly: Bool) {
-        self.absoluteURL = NSURL()
+    init(name: String, path: String, createdDate: NSDate?, modifiedDate: NSDate?, isHidden: Bool, isReadOnly: Bool) {
+        self.absoluteURL = nil
         self.name = name
+        self.path = path
         self.size = -1
         self.createdDate = createdDate
         self.modifiedDate = modifiedDate
@@ -91,6 +95,14 @@ public class FileObject {
         self.isHidden = isHidden
         self.isReadOnly = isReadOnly
     }
+    
+    var isDirectory: Bool {
+        return self.fileType == .Directory
+    }
+    
+    var isSymLink: Bool {
+        return self.fileType == .SymbolicLink
+    }
 }
 
 
@@ -113,6 +125,8 @@ public protocol FileProviderBasic: class {
 }
 
 public protocol FileProviderOperations: FileProviderBasic {
+    var fileOperationDelegate : FileOperationDelegate? { get set }
+    
     func createFolder(folderName: String, atPath: String, completionHandler: SimpleCompletionHandler)
     func createFile(fileAttribs: FileObject, atPath: String, contents data: NSData?, completionHandler: SimpleCompletionHandler)
     func moveItemAtPath(path: String, toPath: String, overwrite: Bool, completionHandler: SimpleCompletionHandler)
@@ -134,6 +148,7 @@ public protocol FileProviderReadWrite: FileProviderBasic {
 public protocol FileProviderMonitor: FileProviderBasic {
     func registerNotifcation(path: String, eventHandler: (() -> Void))
     func unregisterNotifcation(path: String)
+    func isRegisteredForNotification(path: String) -> Bool
 }
 
 public protocol FileProvider: FileProviderBasic, FileProviderOperations, FileProviderReadWrite {
@@ -145,7 +160,7 @@ extension FileProviderBasic {
         return currentPath.stringByTrimmingCharactersInSet(NSCharacterSet(charactersInString: ". /"))
     }
     
-    func absoluteURL(path: String? = nil) -> NSURL {
+    public func absoluteURL(path: String? = nil) -> NSURL {
         let rpath: String
         if let path = path {
             rpath = path
@@ -161,10 +176,58 @@ extension FileProviderBasic {
                 return baseURL.URLByAppendingPathComponent(rpath)
             }
         } else {
-            return NSURL(fileURLWithPath: rpath)
+            return NSURL(fileURLWithPath: rpath).URLByStandardizingPath!
         }
     }
     
+    public func relativePathOf(url url: NSURL) -> String {
+        guard let baseURL = self.baseURL else { return url.absoluteString }
+        return url.URLByStandardizingPath!.absoluteString.stringByReplacingOccurrencesOfString(baseURL.absoluteString, withString: "/").stringByRemovingPercentEncoding!
+    }
+    
+    internal func correctPath(path: String?) -> String? {
+        guard let path = path else { return nil }
+        return path.hasPrefix("/") ? path : "/" + path
+    }
+    
+    public func fileByUniqueName(filePath: String) -> String {
+        let fileUrl = NSURL(fileURLWithPath: filePath)
+        let dirPath = fileUrl.URLByDeletingLastPathComponent?.path ?? ""
+        guard let fileName = fileUrl.URLByDeletingPathExtension?.lastPathComponent else {
+            return filePath
+        }
+        let fileExt = fileUrl.pathExtension ?? ""
+        var result = fileName
+        let group = dispatch_group_create()
+        dispatch_group_enter(group)
+        self.contentsOfDirectoryAtPath(dirPath) { (contents, error) in
+            var bareFileName = fileName
+            let number = Int(fileName.componentsSeparatedByString(" ").filter {
+                !$0.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceAndNewlineCharacterSet()).isEmpty
+                }.last ?? "noname")
+            if let _ = number {
+                result = fileName.componentsSeparatedByString(" ").filter {
+                    !$0.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceAndNewlineCharacterSet()).isEmpty
+                    }.dropLast().joinWithSeparator(" ")
+                bareFileName = result
+            }
+            var i = number ?? 2
+            let similiar = contents.map {
+                $0.absoluteURL?.lastPathComponent ?? $0.name
+            }.filter {
+                $0.hasPrefix(result) && (!fileExt.isEmpty && $0.hasSuffix("." + fileExt))
+            }
+            while similiar.contains(result + (!fileExt.isEmpty ? "." + fileExt : "")) {
+                result = "\(bareFileName) \(i)"
+                i += 1
+            }
+            dispatch_group_leave(group)
+        }
+        dispatch_group_wait(group, DISPATCH_TIME_FOREVER)
+        let finalFile = result + (!fileExt.isEmpty ? "." + fileExt : "")
+        return (dirPath as NSString).stringByAppendingPathComponent(finalFile)
+    }
+    
     internal func throwError(path: String, code: FoundationErrorEnum) -> NSError {
         let fileURL = self.absoluteURL(path)
         let domain: String
@@ -181,21 +244,25 @@ extension FileProviderBasic {
         assert(false, "method not implemented")
     }
     
-    internal func resolveRFCDate(httpDateString: String) -> NSDate? {
+    internal func resolveDate(dateString: String) -> NSDate? {
         let dateFor: NSDateFormatter = NSDateFormatter()
         dateFor.locale = NSLocale(localeIdentifier: "en_US")
         dateFor.dateFormat = "EEE',' dd' 'MMM' 'yyyy HH':'mm':'ss zzz"
-        if let rfc1123 = dateFor.dateFromString(httpDateString) {
+        if let rfc1123 = dateFor.dateFromString(dateString) {
             return rfc1123
         }
         dateFor.dateFormat = "EEEE',' dd'-'MMM'-'yy HH':'mm':'ss z"
-        if let rfc850 = dateFor.dateFromString(httpDateString) {
+        if let rfc850 = dateFor.dateFromString(dateString) {
             return rfc850
         }
         dateFor.dateFormat = "EEE MMM d HH':'mm':'ss yyyy"
-        if let asctime = dateFor.dateFromString(httpDateString) {
+        if let asctime = dateFor.dateFromString(dateString) {
             return asctime
         }
+        dateFor.dateFormat = "yyyy'-'MM'-'dd'T'HH':'mm':'ssz"
+        if let isotime = dateFor.dateFromString(dateString) {
+            return isotime
+        }
         //self.init()
         return nil
     }
@@ -218,17 +285,13 @@ extension FileProviderBasic {
     }
 }
 
-#if (iOS)
+
 public protocol ExtendedFileProvider: FileProvider {
-    func thumbnailOfFileAtPath(path: String, dimension: CGSize, completionHandler: ((image: UIImage?, error: ErrorType?) -> Void))
+    func thumbnailOfFileSupported(path: String) -> Bool
+    func propertiesOfFileSupported(path: String) -> Bool
+    func thumbnailOfFileAtPath(path: String, dimension: CGSize, completionHandler: ((image: ImageClass?, error: ErrorType?) -> Void))
     func propertiesOfFileAtPath(path: String, completionHandler: ((propertiesDictionary: [String: AnyObject], keys: [String], error: ErrorType?) -> Void))
 }
-#elseif (OSX)
-public protocol ExtendedFileProvider: FileProvider {
-    func thumbnailOfFileAtPath(path: String, dimension: CGSize, completionHandler: ((image: NSImage?, error: ErrorType?) -> Void))
-    func propertiesOfFileAtPath(path: String, completionHandler: ((propertiesDictionary: [String: AnyObject], keys: [String], error: ErrorType?) -> Void))
-}
-#endif
 
 public enum FileOperation {
     case Create (path: String)
@@ -237,12 +300,42 @@ public enum FileOperation {
     case Modify (path: String)
     case Remove (path: String)
     case Link   (link: String, target: String)
+    
+    var description: String {
+        switch self {
+        case .Create(path: _): return "Create"
+        case .Copy(source: _, destination: _): return "Copy"
+        case .Move(source: _, destination: _): return "Move"
+        case .Modify(path: _): return "Modify"
+        case .Remove(path: _): return "Remove"
+        case .Link(link: _, target: _): return "Link"
+        }
+    }
+    
+    var actionDescription: String {
+        switch self {
+        case .Create(path: _): return "Creating"
+        case .Copy(source: _, destination: _): return "Copying"
+        case .Move(source: _, destination: _): return "Moving"
+        case .Modify(path: _): return "Modifying"
+        case .Remove(path: _): return "Removing"
+        case .Link(link: _, target: _): return "Linking"
+        }
+    }
+    
 }
 
-public protocol FileProviderDelegate {
+public protocol FileProviderDelegate: class {
     func fileproviderSucceed(fileProvider: FileProviderOperations, operation: FileOperation)
     func fileproviderFailed(fileProvider: FileProviderOperations, operation: FileOperation)
     func fileproviderProgress(fileProvider: FileProviderOperations, operation: FileOperation, progress: Float)
 }
 
-
+public protocol FileOperationDelegate: class {
+    
+    /// fileProvider(_:shouldOperate:) gives the delegate an opportunity to filter the file operation. Returning true from this method will allow the copy to happen. Returning false from this method causes the item in question to be skipped. If the item skipped was a directory, no children of that directory will be subject of the operation, nor will the delegate be notified of those children.
+    func fileProvider(fileProvider: FileProviderOperations, shouldDoOperation operation: FileOperation) -> Bool
+    
+    /// fileProvider:shouldProceedAfterError:copyingItemAtPath:toPath: gives the delegate an opportunity to recover from or continue copying after an error. If an error occurs, the error object will contain an ErrorType indicating the problem. The source path and destination paths are also provided. If this method returns true, the FileProvider instance will continue as if the error had not occurred. If this method returns false, the NSFileManager instance will stop copying, return false from copyItemAtPath:toPath:error: and the error will be provied there.
+    func fileProvider(fileProvider: FileProviderOperations, shouldProceedAfterError error: ErrorType, operation: FileOperation) -> Bool
+}

Sources/LocalFileProvider.swift

@@ -11,30 +11,39 @@ import Foundation
 public final class LocalFileObject: FileObject {
     let allocatedSize: Int64
     
-    init(absoluteURL: NSURL, name: String, size: Int64, allocatedSize: Int64, createdDate: NSDate?, modifiedDate: NSDate?, fileType: FileType, isHidden: Bool, isReadOnly: Bool) {
+    init(absoluteURL: NSURL, name: String, path: String, size: Int64, allocatedSize: Int64, createdDate: NSDate?, modifiedDate: NSDate?, fileType: FileType, isHidden: Bool, isReadOnly: Bool) {
         self.allocatedSize = allocatedSize
-        super.init(absoluteURL: absoluteURL, name: name, size: size, createdDate: createdDate, modifiedDate: modifiedDate, fileType: fileType, isHidden: isHidden, isReadOnly: isReadOnly)
+        super.init(absoluteURL: absoluteURL, name: name, path: path, size: size, createdDate: createdDate, modifiedDate: modifiedDate, fileType: fileType, isHidden: isHidden, isReadOnly: isReadOnly)
     }
 }
 
 public class LocalFileProvider: FileProvider, FileProviderMonitor {
-    public let type = "NSFileManager"
+    public let type = "Local"
     public var isPathRelative: Bool = true
     public var baseURL: NSURL? = LocalFileProvider.defaultBaseURL()
     public var currentPath: String = ""
     public var dispatch_queue: dispatch_queue_t
-    public var delegate: FileProviderDelegate?
+    public var operation_queue: dispatch_queue_t
+    public weak var delegate: FileProviderDelegate?
     public let credential: NSURLCredential? = nil
         
-    let fileManager = NSFileManager()
+    public let fileManager = NSFileManager()
+    public let opFileManager = NSFileManager()
+    private var fileProviderManagerDelegate: LocalFileProviderManagerDelegate? = nil
     
     init () {
-        dispatch_queue = dispatch_queue_create("FileProvider.\(type)", DISPATCH_QUEUE_SERIAL)
+        dispatch_queue = dispatch_queue_create("FileProvider.\(type)", DISPATCH_QUEUE_CONCURRENT)
+        operation_queue = dispatch_queue_create("FileProvider.\(type).Operation", DISPATCH_QUEUE_SERIAL)
+        fileProviderManagerDelegate = LocalFileProviderManagerDelegate(provider: self)
+        opFileManager.delegate = fileProviderManagerDelegate
     }
     
     init (baseURL: NSURL) {
         self.baseURL = baseURL
-        dispatch_queue = dispatch_queue_create("FileProvider.\(type)", DISPATCH_QUEUE_SERIAL)
+        dispatch_queue = dispatch_queue_create("FileProvider.\(type)", DISPATCH_QUEUE_CONCURRENT)
+        operation_queue = dispatch_queue_create("FileProvider.\(type).Operation", DISPATCH_QUEUE_SERIAL)
+        fileProviderManagerDelegate = LocalFileProviderManagerDelegate(provider: self)
+        opFileManager.delegate = fileProviderManagerDelegate
     }
     
     private static func defaultBaseURL() -> NSURL {
@@ -56,7 +65,7 @@ public class LocalFileProvider: FileProvider, FileProviderMonitor {
         }
     }
     
-    private func attributesOfItemAtURL(fileURL: NSURL) -> LocalFileObject {
+    internal func attributesOfItemAtURL(fileURL: NSURL) -> LocalFileObject {
         var namev, sizev, allocated, filetypev, creationDatev, modifiedDatev, hiddenv, readonlyv: AnyObject?
         _ = try? fileURL.getResourceValue(&namev, forKey: NSURLNameKey)
         _ = try? fileURL.getResourceValue(&sizev, forKey: NSURLFileSizeKey)
@@ -66,7 +75,13 @@ public class LocalFileProvider: FileProvider, FileProviderMonitor {
         _ = try? fileURL.getResourceValue(&filetypev, forKey: NSURLFileResourceTypeKey)
         _ = try? fileURL.getResourceValue(&hiddenv, forKey: NSURLIsHiddenKey)
         _ = try? fileURL.getResourceValue(&readonlyv, forKey: NSURLVolumeIsReadOnlyKey)
-        let fileAttr = LocalFileObject(absoluteURL: fileURL, name: namev as! String, size: sizev?.longLongValue ?? -1, allocatedSize: allocated?.longLongValue ?? -1, createdDate: creationDatev as? NSDate, modifiedDate: modifiedDatev as? NSDate, fileType: FileType(urlResourceTypeValue: filetypev as? String ?? ""), isHidden: hiddenv?.boolValue ?? false, isReadOnly: readonlyv?.boolValue ?? false)
+        let path: String
+        if isPathRelative {
+            path = self.relativePathOf(url: fileURL)
+        } else {
+            path = fileURL.path!
+        }
+        let fileAttr = LocalFileObject(absoluteURL: fileURL, name: namev as! String, path: path, size: sizev?.longLongValue ?? -1, allocatedSize: allocated?.longLongValue ?? -1, createdDate: creationDatev as? NSDate, modifiedDate: modifiedDatev as? NSDate, fileType: FileType(urlResourceTypeValue: filetypev as? String ?? ""), isHidden: hiddenv?.boolValue ?? false, isReadOnly: readonlyv?.boolValue ?? false)
         return fileAttr
     }
     
@@ -76,10 +91,12 @@ public class LocalFileProvider: FileProvider, FileProviderMonitor {
         }
     }
     
+    public weak var fileOperationDelegate : FileOperationDelegate?
+    
     public func createFolder(folderName: String, atPath: String, completionHandler: SimpleCompletionHandler) {
-        dispatch_async(dispatch_queue) {
+        dispatch_async(operation_queue) {
             do {
-                try self.fileManager.createDirectoryAtURL(self.absoluteURL(atPath).URLByAppendingPathComponent(folderName), withIntermediateDirectories: true, attributes: [:])
+                try self.opFileManager.createDirectoryAtURL(self.absoluteURL(atPath).URLByAppendingPathComponent(folderName), withIntermediateDirectories: true, attributes: [:])
                 completionHandler?(error: nil)
                 dispatch_async(dispatch_get_main_queue(), {
                     self.delegate?.fileproviderSucceed(self, operation: .Create(path: (atPath as NSString).stringByAppendingPathComponent(folderName) + "/"))
@@ -94,7 +111,7 @@ public class LocalFileProvider: FileProvider, FileProviderMonitor {
     }
     
     public func createFile(fileAttribs: FileObject, atPath: String, contents data: NSData?, completionHandler: SimpleCompletionHandler) {
-        dispatch_async(dispatch_queue) {
+        dispatch_async(operation_queue) {
             let fileURL = self.absoluteURL(atPath).URLByAppendingPathComponent(fileAttribs.name)
             var attributes = [String : AnyObject]()
             if let createdDate = fileAttribs.createdDate {
@@ -106,7 +123,7 @@ public class LocalFileProvider: FileProvider, FileProviderMonitor {
             if fileAttribs.isReadOnly {
                 attributes[NSFilePosixPermissions] = NSNumber(short: 365 /*555 o*/)
             }
-            let success = self.fileManager.createFileAtPath(fileURL.path!, contents: data, attributes: attributes)
+            let success = self.opFileManager.createFileAtPath(fileURL.path!, contents: data, attributes: attributes)
             if success {
                 do {
                     try fileURL.setResourceValue(fileAttribs.isHidden, forKey: NSURLIsHiddenKey)
@@ -126,13 +143,13 @@ public class LocalFileProvider: FileProvider, FileProviderMonitor {
     
     public func moveItemAtPath(path: String, toPath: String, overwrite: Bool = false, completionHandler: SimpleCompletionHandler) {
         // FIXME: progress
-        dispatch_async(dispatch_queue) {
+        dispatch_async(operation_queue) {
             if !overwrite && self.fileManager.fileExistsAtPath(self.absoluteURL(toPath).path ?? "") {
                 completionHandler?(error: self.throwError(toPath, code: NSURLError.CannotMoveFile))
                 return
             }
             do {
-                try self.fileManager.moveItemAtURL(self.absoluteURL(path), toURL: self.absoluteURL(toPath))
+                try self.opFileManager.moveItemAtURL(self.absoluteURL(path), toURL: self.absoluteURL(toPath))
                 completionHandler?(error: nil)
                 dispatch_async(dispatch_get_main_queue(), {
                     self.delegate?.fileproviderSucceed(self, operation: .Move(source: path, destination: toPath))
@@ -148,13 +165,13 @@ public class LocalFileProvider: FileProvider, FileProviderMonitor {
     
     public func copyItemAtPath(path: String, toPath: String, overwrite: Bool = false, completionHandler: SimpleCompletionHandler) {
         // FIXME: progress, for files > 100mb, monitor file by another thread, for dirs check copied items count
-        dispatch_async(dispatch_queue) {
+        dispatch_async(operation_queue) {
             if !overwrite && self.fileManager.fileExistsAtPath(self.absoluteURL(toPath).path ?? "") {
                 completionHandler?(error: self.throwError(toPath, code: NSURLError.CannotWriteToFile))
                 return
             }
             do {
-                try self.fileManager.copyItemAtURL(self.absoluteURL(path), toURL: self.absoluteURL(toPath))
+                try self.opFileManager.copyItemAtURL(self.absoluteURL(path), toURL: self.absoluteURL(toPath))
                 completionHandler?(error: nil)
                 dispatch_async(dispatch_get_main_queue(), {
                     self.delegate?.fileproviderSucceed(self, operation: .Copy(source: path, destination: toPath))
@@ -169,9 +186,9 @@ public class LocalFileProvider: FileProvider, FileProviderMonitor {
     }
     
     public func removeItemAtPath(path: String, completionHandler: SimpleCompletionHandler) {
-        dispatch_async(dispatch_queue) {
+        dispatch_async(operation_queue) {
             do {
-                try self.fileManager.removeItemAtURL(self.absoluteURL(path))
+                try self.opFileManager.removeItemAtURL(self.absoluteURL(path))
                 completionHandler?(error: nil)
                 dispatch_async(dispatch_get_main_queue(), {
                     self.delegate?.fileproviderSucceed(self, operation: .Remove(path: path))
@@ -186,9 +203,9 @@ public class LocalFileProvider: FileProvider, FileProviderMonitor {
     }
     
     public func copyLocalFileToPath(localFile: NSURL, toPath: String, completionHandler: SimpleCompletionHandler) {
-        dispatch_async(dispatch_queue) {
+        dispatch_async(operation_queue) {
             do {
-                try self.fileManager.copyItemAtURL(localFile, toURL: self.absoluteURL(toPath))
+                try self.opFileManager.copyItemAtURL(localFile, toURL: self.absoluteURL(toPath))
                 completionHandler?(error: nil)
                 dispatch_async(dispatch_get_main_queue(), {
                     self.delegate?.fileproviderSucceed(self, operation: .Copy(source: localFile.absoluteString, destination: toPath))
@@ -203,9 +220,9 @@ public class LocalFileProvider: FileProvider, FileProviderMonitor {
     }
     
     public func copyPathToLocalFile(path: String, toLocalURL: NSURL, completionHandler: SimpleCompletionHandler) {
-        dispatch_async(dispatch_queue) {
+        dispatch_async(operation_queue) {
             do {
-                try self.fileManager.copyItemAtURL(self.absoluteURL(path), toURL: toLocalURL)
+                try self.opFileManager.copyItemAtURL(self.absoluteURL(path), toURL: toLocalURL)
                 completionHandler?(error: nil)
                 dispatch_async(dispatch_get_main_queue(), {
                     self.delegate?.fileproviderSucceed(self, operation: .Copy(source: path, destination: toLocalURL.absoluteString))
@@ -231,7 +248,7 @@ public class LocalFileProvider: FileProvider, FileProviderMonitor {
         // So we have to fallback to POSIX provided methods
         dispatch_async(dispatch_queue) {
             let aPath = self.absoluteURL(path).path!
-            if self.attributesOfItemAtURL(self.absoluteURL(path)).fileType == .Directory {
+            if self.attributesOfItemAtURL(self.absoluteURL(path)).isDirectory {
                 self.throwError(path, code: NSURLError.FileIsDirectory)
             }
             if !self.fileManager.fileExistsAtPath(aPath) {
@@ -256,7 +273,7 @@ public class LocalFileProvider: FileProvider, FileProviderMonitor {
     }
     
     public func writeContentsAtPath(path: String, contents data: NSData, atomically: Bool, completionHandler: SimpleCompletionHandler) {
-        dispatch_async(dispatch_queue) {
+        dispatch_async(operation_queue) {
             data.writeToURL(self.absoluteURL(path), atomically: atomically)
             dispatch_async(dispatch_get_main_queue(), {
                 self.delegate?.fileproviderSucceed(self, operation: .Modify(path: path))
@@ -282,38 +299,46 @@ public class LocalFileProvider: FileProvider, FileProviderMonitor {
         }
     }
     
-    private var monitorDictionary = [String : LocalFolderMonitor]()
+    private var monitors = [LocalFolderMonitor]()
     
     public func registerNotifcation(path: String, eventHandler: (() -> Void)) {
         self.unregisterNotifcation(path)
+        let absurl = self.absoluteURL(path)
         var isdirv: AnyObject?
         do {
-            try absoluteURL(path).getResourceValue(&isdirv, forKey: NSURLIsDirectoryKey)
+            try absurl.getResourceValue(&isdirv, forKey: NSURLIsDirectoryKey)
         } catch _ {
         }
         if !(isdirv?.boolValue ?? false) {
             return
         }
-        let monitor = LocalFolderMonitor(url: absoluteURL(path)) {
+        let monitor = LocalFolderMonitor(url: absurl) {
             eventHandler()
         }
         monitor.start()
-        monitorDictionary[path] = monitor
+        monitors.append(monitor)
     }
     
     public func unregisterNotifcation(path: String) {
-        if let prevMonitor = monitorDictionary[path] {
-            prevMonitor.stop()
-            monitorDictionary.removeValueForKey(path)
+        var removedMonitor: LocalFolderMonitor?
+        for (i, monitor) in monitors.enumerate() {
+            if self.relativePathOf(url: monitor.url) == path {
+                removedMonitor = monitors.removeAtIndex(i)
+            }
         }
+        removedMonitor?.stop()
+    }
+    
+    public func isRegisteredForNotification(path: String) -> Bool {
+        return monitors.map( { self.relativePathOf(url: $0.url) } ).contains(path)
     }
 }
 
 extension LocalFileProvider {
     public func createSymbolicLinkAtPath(path: String, withDestinationPath destPath: String, completionHandler: SimpleCompletionHandler) {
-        dispatch_async(dispatch_queue) {
+        dispatch_async(operation_queue) {
             do {
-                try self.fileManager.createSymbolicLinkAtURL(self.absoluteURL(path), withDestinationURL: self.absoluteURL(destPath))
+                try self.opFileManager.createSymbolicLinkAtURL(self.absoluteURL(path), withDestinationURL: self.absoluteURL(destPath))
                 completionHandler?(error: nil)
                 dispatch_async(dispatch_get_main_queue(), {
                     self.delegate?.fileproviderSucceed(self, operation: .Link(link: path, target: destPath))
@@ -328,15 +353,95 @@ extension LocalFileProvider {
     }
 }
 
-private class LocalFolderMonitor {
+class LocalFileProviderManagerDelegate: NSObject, NSFileManagerDelegate {
+    weak var provider: LocalFileProvider?
+    
+    init(provider: LocalFileProvider) {
+        self.provider = provider
+    }
+    
+    func fileManager(fileManager: NSFileManager, shouldCopyItemAtURL srcURL: NSURL, toURL dstURL: NSURL) -> Bool {
+        guard let provider = self.provider, delegate = provider.fileOperationDelegate else {
+            return true
+        }
+        let srcPath = provider.relativePathOf(url: srcURL)
+        let dstPath = provider.relativePathOf(url: dstURL)
+        return delegate.fileProvider(provider, shouldDoOperation: .Copy(source: srcPath, destination: dstPath))
+    }
+    
+    func fileManager(fileManager: NSFileManager, shouldMoveItemAtURL srcURL: NSURL, toURL dstURL: NSURL) -> Bool {
+        guard let provider = self.provider, delegate = provider.fileOperationDelegate else {
+            return true
+        }
+        let srcPath = provider.relativePathOf(url: srcURL)
+        let dstPath = provider.relativePathOf(url: dstURL)
+        return delegate.fileProvider(provider, shouldDoOperation: .Move(source: srcPath, destination: dstPath))
+    }
+    
+    func fileManager(fileManager: NSFileManager, shouldRemoveItemAtURL URL: NSURL) -> Bool {
+        guard let provider = self.provider, delegate = provider.fileOperationDelegate else {
+            return true
+        }
+        let path = provider.relativePathOf(url: URL)
+        return delegate.fileProvider(provider, shouldDoOperation: .Remove(path: path))
+    }
+    
+    func fileManager(fileManager: NSFileManager, shouldLinkItemAtURL srcURL: NSURL, toURL dstURL: NSURL) -> Bool {
+        guard let provider = self.provider, delegate = provider.fileOperationDelegate else {
+            return true
+        }
+        let srcPath = provider.relativePathOf(url: srcURL)
+        let dstPath = provider.relativePathOf(url: dstURL)
+        return delegate.fileProvider(provider, shouldDoOperation: .Link(link: srcPath, target: dstPath))
+    }
+    
+    func fileManager(fileManager: NSFileManager, shouldProceedAfterError error: NSError, copyingItemAtURL srcURL: NSURL, toURL dstURL: NSURL) -> Bool {
+        guard let provider = self.provider, delegate = provider.fileOperationDelegate else {
+            return false
+        }
+        let srcPath = provider.relativePathOf(url: srcURL)
+        let dstPath = provider.relativePathOf(url: dstURL)
+        return delegate.fileProvider(provider, shouldProceedAfterError: error, operation: .Copy(source: srcPath, destination: dstPath))
+    }
+    
+    func fileManager(fileManager: NSFileManager, shouldProceedAfterError error: NSError, movingItemAtURL srcURL: NSURL, toURL dstURL: NSURL) -> Bool {
+        guard let provider = self.provider, delegate = provider.fileOperationDelegate else {
+            return false
+        }
+        let srcPath = provider.relativePathOf(url: srcURL)
+        let dstPath = provider.relativePathOf(url: dstURL)
+        return delegate.fileProvider(provider, shouldProceedAfterError: error, operation: .Move(source: srcPath, destination: dstPath))
+    }
+    
+    func fileManager(fileManager: NSFileManager, shouldProceedAfterError error: NSError, removingItemAtURL URL: NSURL) -> Bool {
+        guard let provider = self.provider, delegate = provider.fileOperationDelegate else {
+            return false
+        }
+        let path = provider.relativePathOf(url: URL)
+        return delegate.fileProvider(provider, shouldProceedAfterError: error, operation: .Remove(path: path))
+    }
+    
+    func fileManager(fileManager: NSFileManager, shouldProceedAfterError error: NSError, linkingItemAtURL srcURL: NSURL, toURL dstURL: NSURL) -> Bool {
+        guard let provider = self.provider, delegate = provider.fileOperationDelegate else {
+            return false
+        }
+        let srcPath = provider.relativePathOf(url: srcURL)
+        let dstPath = provider.relativePathOf(url: dstURL)
+        return delegate.fileProvider(provider, shouldProceedAfterError: error, operation: .Link(link: srcPath, target: dstPath))
+    }
+}
+
+internal class LocalFolderMonitor {
     private let source: dispatch_source_t
     private let descriptor: CInt
-    private let qq: dispatch_queue_t = dispatch_get_main_queue()
+    private let qq: dispatch_queue_t = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
     private var state: Bool = false
+    private var monitoredTime: NSTimeInterval = NSDate().timeIntervalSinceReferenceDate
+    var url: NSURL
     
     /// Creates a folder monitor object with monitoring enabled.
     init(url: NSURL, handler: ()->Void) {
-        
+        self.url = url
         descriptor = open(url.fileSystemRepresentation, O_EVTONLY)
         
         source = dispatch_source_create(
@@ -345,8 +450,23 @@ private class LocalFolderMonitor {
             DISPATCH_VNODE_WRITE,
             qq
         )
-        
-        dispatch_source_set_event_handler(source, handler)
+        // Folder monitoring is recursive and deep. Monitoring a root folder may be very costly
+        // We have a 0.2 second delay to ensure we wont call handler 1000s times when there is
+        // a huge file operation. This ensures app will work smoothly while this 250 milisec won't
+        // affect user experince much
+        let main_handler: ()->Void = {
+            if NSDate().timeIntervalSinceReferenceDate < self.monitoredTime + 0.2 {
+                return
+            }
+            self.monitoredTime = NSDate().timeIntervalSinceReferenceDate
+            dispatch_after(dispatch_time(DISPATCH_TIME_NOW, Int64(NSEC_PER_SEC) / 4), dispatch_get_main_queue(), {
+                handler()
+            })
+        }
+        dispatch_source_set_event_handler(source, main_handler)
+        dispatch_source_set_cancel_handler(source) {
+            close(self.descriptor)
+        }
         start()
     }
     
@@ -367,7 +487,6 @@ private class LocalFolderMonitor {
     }
     
     deinit {
-        close(descriptor)
         dispatch_source_cancel(source)
     }
 }

Sources/SMBClient.swift

@@ -0,0 +1,194 @@
+//
+//  SMBTransmitter.swift
+//  FileProvider
+//
+//  Created by Amir Abbas Mousavian.
+//  Copyright © 2016 Mousavian. Distributed under MIT license.
+//
+
+import Foundation
+
+internal func encode<T>(inout value: T) -> NSData {
+    return withUnsafePointer(&value) { p in
+        NSData(bytes: p, length: sizeofValue(value))
+    }
+}
+
+internal func encode<T>(value: T) -> NSData {
+    var value = value
+    return withUnsafePointer(&value) { p in
+        NSData(bytes: p, length: sizeofValue(value))
+    }
+}
+
+internal func decode<T>(data: NSData) -> T {
+    let pointer = UnsafeMutablePointer<T>.alloc(sizeof(T.Type))
+    data.getBytes(pointer, length: sizeof(T.Type))
+    
+    return pointer.move()
+}
+
+// This client implementation is for little-endian platform, namely x86, x64 & arm
+// For big-endian platforms like PowerPC, there must be a huge overhaul
+
+class SMBProtocolClient: TCPSocketClient {
+    var currentMessageID: UInt64 = 0
+    
+    func negotiateToSMB2() -> SMB2.NegotiateResponse? {
+        let smbHeader = SMB2.Header(command: .NEGOTIATE, creditRequestResponse: 126, messageId: messageId(), treeId: 0, sessionId: 0)
+        currentMessageID += 1
+        let negMessage = SMB2.NegotiateRequest(request: SMB2.NegotiateRequest.Header(capabilities: []))
+        SMBProtocolClient.createSMB2Message(smbHeader, message: negMessage)
+        do {
+            try self.send(data: nil)
+        } catch _ {
+            return nil
+        }
+        self.waitUntilResponse()
+        let response = try? SMBProtocolClient.digestSMB2Message(dataReceived)
+        return response??.message as? SMB2.NegotiateResponse
+    }
+    
+    func sessionSetupForSMB2() -> SMB2.SessionSetupResponse? {
+        return nil
+    }
+    
+    func messageId() -> UInt64 {
+        defer {
+            currentMessageID += 1
+        }
+        return currentMessageID
+    }
+    
+    // MARK: create and analyse messages
+    
+    class func determineSMBVersion(data: NSData) -> Float {
+        var smbverChar: Int8 = 0
+        data.getBytes(&smbverChar, length: 1)
+        let version = 0 - smbverChar
+        return Float(version)
+    }
+    
+    class func digestSMBMessage(data: NSData) throws -> (header: SMB1.Header, blocks: [(params: [UInt16], message: NSData?)]) {
+        guard data.length > 30 else {
+            throw NSURLError.BadServerResponse
+        }
+        var buffer = [UInt8](count: data.length, repeatedValue: 0)
+        guard determineSMBVersion(data) == 1 else {
+            throw SMBFileProviderError.IncompatibleHeader
+        }
+        let headersize = sizeof(SMB1.Header.self)
+        let header: SMB1.Header = decode(data)
+        var blocks = [(params: [UInt16], message: NSData?)]()
+        var offset = headersize
+        while offset < data.length {
+            let paramWords: [UInt16]
+            let paramWordsCount = Int(buffer[offset])
+            guard data.length > (paramWordsCount * 2 + offset) else {
+                throw SMBFileProviderError.IncorrectParamsLength
+            }
+            offset += sizeof(UInt8)
+            var rawParamWords = [UInt8](buffer[offset..<(offset + paramWordsCount * 2)])
+            let paramData = NSData(bytesNoCopy: &rawParamWords, length: rawParamWords.count)
+            paramWords = decode(paramData)
+            offset += paramWordsCount * 2
+            let messageBytesCountLittleEndian = [UInt8](buffer[offset...(offset + 1)])
+            let messageBytesCount = Int(UnsafePointer<UInt16>(messageBytesCountLittleEndian).memory)
+            offset += sizeof(UInt16)
+            guard data.length >= (offset + messageBytesCount) else {
+                throw SMBFileProviderError.IncorrectMessageLength
+            }
+            var rawMessage = [UInt8](buffer[offset..<(offset + messageBytesCount)])
+            offset += messageBytesCount
+            let message = NSData(bytes: &rawMessage, length: rawMessage.count)
+            blocks.append((params: paramWords, message: message))
+        }
+        return (header, blocks)
+    }
+    
+    class func digestSMB2Message(data: NSData) throws -> (header: SMB2.Header, message: SMBResponse?)? {
+        guard data.length > 65 else {
+            throw NSURLError.BadServerResponse
+        }
+        guard determineSMBVersion(data) == 2 else {
+            throw SMBFileProviderError.IncompatibleHeader
+        }
+        let headersize = sizeof(SMB2.Header.self)
+        let headerData = data.subdataWithRange(NSRange(location: 0, length: headersize))
+        let messageSize = data.length - headersize
+        let messageData = data.subdataWithRange(NSRange(location: headersize, length: messageSize))
+        let header: SMB2.Header = decode(headerData)
+        switch header.command {
+        case .NEGOTIATE:
+            return (header, SMB2.NegotiateResponse(data: messageData))
+        case .SESSION_SETUP:
+            return (header, SMB2.SessionSetupResponse(data: messageData))
+        case .LOGOFF:
+            return (header, SMB2.LogOff(data: messageData))
+        case .TREE_CONNECT:
+            return (header, SMB2.TreeConnectResponse(data: messageData))
+        case .TREE_DISCONNECT:
+            return (header, SMB2.TreeDisconnect(data: messageData))
+        case .CREATE:
+            return (header, SMB2.CreateResponse(data: messageData))
+        case .CLOSE:
+            return (header, SMB2.CloseResponse(data: messageData))
+        case .FLUSH:
+            return (header, SMB2.FlushResponse(data: messageData))
+        case .READ:
+            return (header, nil) // FIXME:
+        case .WRITE:
+            return (header, nil) // FIXME:
+        case .LOCK:
+            return (header, nil) // FIXME:
+        case .IOCTL:
+            return (header, nil)
+        case .CANCEL:
+            return (header, nil)
+        case .ECHO:
+            return (header, SMB2.Echo(data: messageData))
+        case .QUERY_DIRECTORY:
+            return (header, nil) // FIXME:
+        case .CHANGE_NOTIFY:
+            return (header, nil) // FIXME:
+        case .QUERY_INFO:
+            return (header, nil) // FIXME:
+        case .SET_INFO:
+            return (header, nil) // FIXME:
+        case .OPLOCK_BREAK:
+            return (header, nil) // FIXME:
+        case .INVALID:
+            throw SMBFileProviderError.InvalidCommand
+        }
+    }
+    
+    class func createSMBMessage(header: SMB1.Header, blocks: [(params: NSData?, message: NSData?)]) -> NSData {
+        var headerv = header
+        let result = NSMutableData(data: encode(&headerv))
+        for block in blocks {
+            var paramWordsCount = UInt8(block.params?.length ?? 0)
+            result.appendBytes(&paramWordsCount, length: sizeofValue(paramWordsCount))
+            if let params = block.params {
+                result.appendData(params)
+            }
+            var messageLen = UInt16(block.message?.length ?? 0)
+            result.appendBytes(&messageLen, length: sizeofValue(messageLen))
+            if let message = block.message {
+                result.appendData(message)
+            }
+        }
+        return result
+    }
+    
+    class func createSMB2Message(header: SMB2.Header, message: SMBRequest) -> NSData {
+        var headerv = header
+        let result = NSMutableData(data: encode(&headerv))
+        result.appendData(message.data())
+        return result
+    }
+}
+
+protocol FileProviderSMBHeader {
+    var protocolID: UInt32 { get }
+    static var protocolConst: UInt32 { get }
+}

Sources/SMBFileProvider.swift

@@ -14,7 +14,7 @@ class SMBFileProvider: FileProvider, FileProviderMonitor {
     var baseURL: NSURL?
     var currentPath: String = ""
     var dispatch_queue: dispatch_queue_t
-    var delegate: FileProviderDelegate?
+    weak var delegate: FileProviderDelegate?
     let credential: NSURLCredential?
     
     typealias FileObjectClass = FileObject
@@ -40,6 +40,8 @@ class SMBFileProvider: FileProvider, FileProviderMonitor {
         NotImplemented()
     }
     
+    weak var fileOperationDelegate: FileOperationDelegate?
+    
     func createFolder(folderName: String, atPath: String, completionHandler: SimpleCompletionHandler) {
         NotImplemented()
     }
@@ -91,7 +93,10 @@ class SMBFileProvider: FileProvider, FileProviderMonitor {
     func unregisterNotifcation(path: String) {
         NotImplemented()
     }
-
+    
+    func isRegisteredForNotification(path: String) -> Bool {
+        return false
+    }
 }
 
 // MARK: basic CIFS interactivity

Sources/SMBTypes/CIFSTypes.swift

@@ -0,0 +1,217 @@
+//
+//  CIFSTypes.swift
+//  ExtDownloader
+//
+//  Created by Amir Abbas Mousavian on 4/30/95.
+//  Copyright © 1395 Mousavian. All rights reserved.
+//
+
+import Foundation
+
+// SMB/CIFS Types
+struct SMB1 {
+    struct Header { // 32 bytes
+        // header is always \u{ff}SMB
+        let protocolID: UInt32
+        static let protocolConst: UInt32 = 0x424d53ff
+        private var _command: UInt8
+        var command: Command {
+            get {
+                return Command(rawValue: _command) ?? .INVALID
+            }
+            set {
+                _command = newValue.rawValue
+            }
+        }
+        // error messages from the server to the client
+        private var _status: (UInt8, UInt8, UInt8, UInt8)
+        var error: (Class: UInt8, code: UInt16) {
+            get {
+                return (_status.0, UInt16(_status.2) + (UInt16(_status.3) << 8))
+            }
+            set {
+                _status = (newValue.Class, 0, UInt8(newValue.code & 0xff), UInt8(newValue.code >> 8))
+            }
+        }
+        var ntStatus: UInt32 {
+            get {
+                let statusLo = UInt32(_status.0) + UInt32(_status.1) << 8
+                let statusHi = UInt32(_status.2) + UInt32(_status.3) << 8
+                return statusHi << 16 + statusLo
+            }
+            set {
+                _status = (UInt8(newValue & 0xff), UInt8(newValue >> 8 & 0xff), UInt8(newValue >> 16 & 0xff), UInt8(newValue >> 24 & 0xff))
+            }
+        }
+        var flags: Flags
+        var flags2: Flags2
+        var pidHigh: UInt16
+        //  encryption key used for validating messages over connectionless transports
+        private var _securityKey: (UInt16, UInt16)
+        var securityKey: UInt32 {
+            get {
+                return UInt32(_securityKey.1) << 16 + UInt32(_securityKey.0)
+            }
+            set {
+                _securityKey = (UInt16(newValue & 0xffff), UInt16(newValue >> 16))
+            }
+        }
+        ///  Connection identifier
+        var securityCID: UInt16
+        ///  Identifier of the sequence of a message over connectionless transports
+        var securitySequenceNumber: UInt16
+        private var ununsed: UInt16
+        var treeId: UInt16
+        var pidLow: UInt16
+        var userId: UInt16
+        var multiplexId: UInt16
+        var pid: UInt32 {
+            get {
+                return UInt32(pidLow) + UInt32(pidHigh) << 16
+            }
+            set {
+                pidLow = UInt16(newValue & 0xffff)
+                pidHigh = UInt16(newValue >> 16)
+            }
+        }
+        
+        init(command: Command, ntStatus: UInt32 = 0, flags: Flags, flags2: Flags2 = [.LONG_NAMES, .ERR_STATUS, .UNICODE], securityKey: UInt32 = 0, securityCID: UInt16 = 0, securitySequenceNumber: UInt16 = 0, treeId: UInt16, pid: UInt32, userId: UInt16, multiplexId: UInt16) {
+            self.protocolID = Header.protocolConst
+            self._command = command.rawValue
+            _status = (UInt8(ntStatus & 0xff), UInt8(ntStatus >> 8 & 0xff), UInt8(ntStatus >> 16 & 0xff), UInt8(ntStatus >> 24 & 0xff))
+            self.flags = flags
+            self.flags2 = flags2
+            self._securityKey = (UInt16(securityKey & 0xffff), UInt16(securityKey >> 16))
+            self.securityCID = securityCID
+            self.securitySequenceNumber = securitySequenceNumber
+            self.ununsed = 0
+            self.treeId = treeId
+            self.pidLow = UInt16(pid & 0xffff)
+            self.pidHigh = UInt16(pid >> 16)
+            self.userId = userId
+            self.multiplexId = multiplexId
+        }
+    }
+    
+    struct Flags: OptionSetType {
+        let rawValue: UInt8
+        
+        init(rawValue: UInt8) {
+            self.rawValue = rawValue
+        }
+        /** This bit is set (1) in the NEGOTIATE (0x72) Response if the server supports
+         * LOCK_AND_READ (0x13) and WRITE_AND_UNLOCK (0x14) commands. */
+        static let LOCK_AND_READ_OK       = Flags(rawValue: 0x01)
+        static let BUF_AVAIL              = Flags(rawValue: 0x02)
+        static let CASE_INSENSITIVE       = Flags(rawValue: 0x08)
+        static let CANONICALIZED_PATHS    = Flags(rawValue: 0x10)
+        static let OPLOCK                 = Flags(rawValue: 0x20)
+        static let OPBATCH                = Flags(rawValue: 0x40)
+        /**  When on, this message is being sent from the server in response to a client request. */
+        static let REPLY                  = Flags(rawValue: 0x80)
+    }
+    
+    struct Flags2: OptionSetType {
+        let rawValue: UInt16
+        
+        init(rawValue: UInt16) {
+            self.rawValue = rawValue
+        }
+        /** Client: the message MAY contain long file names. */
+        static let LONG_NAMES             = Flags2(rawValue: 0x0001)
+        /** Client: the client is aware of extended attributes (EAs). */
+        static let EAS                    = Flags2(rawValue: 0x0002)
+        /** Client: the client is requesting signing (if signing is not yet active) or the message
+         * being sent is signed. This bit is used on the SMB header of an SESSION_SETUP_ANDX */
+        static let SMB_SECURITY_SIGNATURE = Flags2(rawValue: 0x0004)
+        ///  Reserved but not implemented.
+        static let IS_LONG_NAME           = Flags2(rawValue: 0x0040)
+        /** client aware of Extended Security negotiation */
+        static let EXT_SEC                = Flags2(rawValue:  0x0800)
+        /** any pathnames in this SMB SHOULD be resolved in the Distributed File System (DFS) */
+        static let DFS                    = Flags2(rawValue: 0x1000)
+        /**
+         * This flag is useful only on a read request. If the bit is set, then the client MAY read
+         * the file if the client does not have read permission but does have execute permission. */
+        static let PAGING_IO              = Flags2(rawValue:  0x2000) // READ_IF_EXECUTE
+        /**
+         * Client: the server MUST return errors as 32-bit NTSTATUS codes in the response
+         * Server: the Status field in the header is formatted as an NTSTATUS cod */
+        static let ERR_STATUS             = Flags2(rawValue: 0x4000)
+        /**
+         * Each field that contains a string in this SMB message MUST be encoded
+         * as an array of 16-bit Unicode characters */
+        static let UNICODE                = Flags2(rawValue: 0x8000)
+    }
+    
+    enum Command: UInt8 {
+        case CREATE_DIRECTORY       = 0x00
+        case DELETE_DIRECTORY       = 0x01
+        case OPEN                   = 0x02
+        case CREATE                 = 0x03
+        case CLOSE                  = 0x04
+        case FLUSH                  = 0x05
+        case DELETE                 = 0x06
+        case RENAME                 = 0x07
+        case QUERY_INFORMATION      = 0x08
+        case SET_INFORMATION        = 0x09
+        case READ                   = 0x0A
+        case WRITE                  = 0x0B
+        case LOCK_BYTE_RANGE        = 0x0C
+        case UNLOCK_BYTE_RANGE      = 0x0D
+        case CREATE_TEMPORARY       = 0x0E
+        case CREATE_NEW             = 0x0F
+        case CHECK_DIRECTORY        = 0x10
+        case PROCESS_EXIT           = 0x11
+        case SEEK                   = 0x12
+        case LOCK_AND_READ          = 0x13
+        case WRITE_AND_UNLOCK       = 0x14
+        case READ_RAW               = 0x1A
+        case READ_MPX               = 0x1B
+        case READ_MPX_SECONDARY     = 0x1C
+        case WRITE_RAW              = 0x1D
+        case WRITE_MPX              = 0x1E
+        case WRITE_COMPLETE         = 0x20
+        case SET_INFORMATION2       = 0x22
+        case QUERY_INFORMATION2     = 0x23
+        case LOCKING_ANDX           = 0x24
+        case TRANSACTION            = 0x25
+        case TRANSACTION_SECONDARY  = 0x26
+        case IOCTL                  = 0x27
+        case IOCTL_SECONDARY        = 0x28
+        case COPY                   = 0x29
+        case MOVE                   = 0x2A
+        case ECHO                   = 0x2B
+        case WRITE_AND_CLOSE        = 0x2C
+        case OPEN_ANDX              = 0x2D
+        case READ_ANDX              = 0x2E
+        case WRITE_ANDX             = 0x2F
+        case CLOSE_AND_TREE_DISC    = 0x31
+        case TRANSACTION2           = 0x32
+        case TRANSACTION2_SECONDARY = 0x33
+        case FIND_CLOSE2            = 0x34
+        case FIND_NOTIFY_CLOSE      = 0x35
+        case TREE_CONNECT           = 0x70
+        case TREE_DISCONNECT        = 0x71
+        case NEGOTIATE              = 0x72
+        case SESSION_SETUP_ANDX     = 0x73
+        case LOGOFF_ANDX            = 0x74
+        case TREE_CONNECT_ANDX      = 0x75
+        case QUERY_INFORMATION_DISK = 0x80
+        case SEARCH                 = 0x81
+        case FIND                   = 0x82
+        case FIND_UNIQUE            = 0x83
+        case NT_TRANSACT            = 0xA0
+        case NT_TRANSACT_SECONDARY  = 0xA1
+        case NT_CREATE_ANDX         = 0xA2
+        case NT_CANCEL              = 0xA4
+        case OPEN_PRINT_FILE        = 0xC0
+        case WRITE_PRINT_FILE       = 0xC1
+        case CLOSE_PRINT_FILE       = 0xC2
+        case GET_PRINT_QUEUE        = 0xC3
+        case READ_BULK              = 0xD8
+        case WRITE_BULK             = 0xD9
+        case WRITE_BULK_DATA        = 0xDA
+        case INVALID                = 0xFE
+    }
+}

Sources/SMBTypes/SMB2DataTypes.swift

@@ -0,0 +1,49 @@
+//
+//  SMB2DataTypes.swift
+//  ExtDownloader
+//
+//  Created by Amir Abbas Mousavian on 4/30/95.
+//  Copyright © 1395 Mousavian. All rights reserved.
+//
+
+import Foundation
+
+protocol SMBRequest {
+    func data() -> NSData
+}
+
+protocol SMBResponse {
+    init? (data: NSData)
+}
+
+protocol IOCtlRequestProtocol: SMBRequest {}
+protocol IOCtlResponseProtocol: SMBResponse {}
+
+
+struct SMBTime {
+    var time: UInt64
+    
+    init(time: UInt64) {
+        self.time = time
+    }
+    
+    init(unixTime: UInt) {
+        self.time = (UInt64(unixTime) + 11644473600) * 10000000
+    }
+    
+    init(timeIntervalSince1970: NSTimeInterval) {
+        self.time = UInt64((timeIntervalSince1970 + 11644473600) * 10000000)
+    }
+    
+    init(date: NSDate) {
+        self.init(timeIntervalSince1970: date.timeIntervalSince1970)
+    }
+    
+    var unixTime: UInt {
+        return UInt(self.time / 10000000 - 11644473600)
+    }
+    
+    var date: NSDate {
+        return NSDate(timeIntervalSince1970: Double(self.time) / 10000000 - 11644473600)
+    }
+}

Sources/SMBTypes/SMB2FileHandle.swift

@@ -0,0 +1,448 @@
+//
+//  SMB2CreateClose.swift
+//  ExtDownloader
+//
+//  Created by Amir Abbas Mousavian on 4/30/95.
+//  Copyright © 1395 Mousavian. All rights reserved.
+//
+
+import Foundation
+
+extension SMB2 {
+    // MARK: SMB2 Create
+    
+    struct CreateRequest: SMBRequest {
+        let header: CreateRequest.Header
+        let name: String?
+        let contexts: [CreateContext]
+        
+        init (header: CreateRequest.Header, name: String? = nil, contexts: [CreateContext] = []) {
+            self.header = header
+            self.name = name
+            self.contexts = contexts
+        }
+        
+        func data() -> NSData {
+            var header = self.header
+            var offset = 0x78 //UInt16(sizeof(SMB2.Header.self) + sizeof(CreateContext.Header.self) - 1)
+            let body = NSMutableData()
+            if let name = self.name, let nameData = name.dataUsingEncoding(NSUTF8StringEncoding) {
+                header.nameOffset = UInt16(offset)
+                header.nameLength = UInt16(nameData.length)
+                offset += nameData.length
+                body.appendData(nameData)
+            }
+            if contexts.count > 0 {
+                // TODO: Context CreateRequest implementation, 8 bit allign offset
+                header.contextOffset = UInt32(offset)
+                
+                
+                header.contextLength = 0
+                //result.appendData(nameData)
+            }
+            let result = NSMutableData(data: encode(&header))
+            result.appendData(body)
+            return result
+        }
+        
+        struct Header {
+            let size: UInt16
+            private let securityFlags: UInt8
+            private var _requestedOplockLevel: UInt8
+            var requestedOplockLevel: OplockLevel {
+                get {
+                    return OplockLevel(rawValue: _requestedOplockLevel)!
+                }
+                set {
+                    _requestedOplockLevel = newValue.rawValue
+                }
+            }
+            private var _impersonationLevel: UInt32
+            var impersonationLevel: ImpersonationLevel {
+                get {
+                    return ImpersonationLevel(rawValue: _impersonationLevel)!
+                }
+                set {
+                    _impersonationLevel = newValue.rawValue
+                }
+            }
+            private let flags: UInt64
+            private let reserved: UInt64
+            let access: FileAccessMask
+            let fileAttributes: FileAttributes
+            let shareAccess: ShareAccess
+            private var _desposition: UInt32
+            var desposition: CreateDisposition {
+                get {
+                    return CreateDisposition(rawValue: _desposition)!
+                }
+                set {
+                    _desposition = newValue.rawValue
+                }
+            }
+            let options: CreateOptions
+            var nameOffset: UInt16
+            var nameLength: UInt16
+            var contextOffset: UInt32
+            var contextLength: UInt32
+            
+            init(requestedOplockLevel: OplockLevel = .NONE, impersonationLevel: ImpersonationLevel = .Anonymous, access: FileAccessMask = [.GENERIC_ALL], fileAttributes: FileAttributes = [], shareAccess: ShareAccess = [.READ], desposition: CreateDisposition = .OPEN_IF, options: CreateOptions = []) {
+                self.size = 57
+                self.securityFlags = 0
+                self._requestedOplockLevel = requestedOplockLevel.rawValue
+                self._impersonationLevel = impersonationLevel.rawValue
+                self.flags = 0
+                self.reserved = 0
+                self.access = access
+                self.fileAttributes = fileAttributes
+                self.shareAccess = shareAccess
+                self._desposition = desposition.rawValue
+                self.options = options
+                self.nameOffset = 0
+                self.nameLength = 0
+                self.contextOffset = 0
+                self.contextLength = 0
+            }
+        }
+        
+        struct CreateOptions: OptionSetType {
+            let rawValue: UInt32
+            
+            init(rawValue: UInt32) {
+                self.rawValue = rawValue
+            }
+            
+            static let DIRECTORY_FILE               = CreateOptions(rawValue: 0x00000001)
+            static let WRITE_THROUGH                = CreateOptions(rawValue: 0x00000002)
+            static let SEQUENTIAL_ONLY              = CreateOptions(rawValue: 0x00000004)
+            static let NO_INTERMEDIATE_BUFFERING    = CreateOptions(rawValue: 0x00000008)
+            static let NON_DIRECTORY_FILE           = CreateOptions(rawValue: 0x00000040)
+            static let NO_EA_KNOWLEDGE              = CreateOptions(rawValue: 0x00000200)
+            static let RANDOM_ACCESS                = CreateOptions(rawValue: 0x00000800)
+            static let DELETE_ON_CLOSE              = CreateOptions(rawValue: 0x00001000)
+            static let OPEN_BY_FILE_ID              = CreateOptions(rawValue: 0x00002000)
+            static let OPEN_FOR_BACKUP_INTENT       = CreateOptions(rawValue: 0x00004000)
+            static let NO_COMPRESSION               = CreateOptions(rawValue: 0x00008000)
+            static let OPEN_REPARSE_POINT           = CreateOptions(rawValue: 0x00200000)
+            static let OPEN_NO_RECALL               = CreateOptions(rawValue: 0x00400000)
+            private static let SYNCHRONOUS_IO_ALERT         = CreateOptions(rawValue: 0x00000010)
+            private static let SYNCHRONOUS_IO_NONALERT      = CreateOptions(rawValue: 0x00000020)
+            private static let COMPLETE_IF_OPLOCKED         = CreateOptions(rawValue: 0x00000100)
+            private static let REMOTE_INSTANCE              = CreateOptions(rawValue: 0x00000400)
+            private static let OPEN_FOR_FREE_SPACE_QUERY    = CreateOptions(rawValue: 0x00800000)
+            private static let OPEN_REQUIRING_OPLOCK        = CreateOptions(rawValue: 0x00010000)
+            private static let DISALLOW_EXCLUSIVE           = CreateOptions(rawValue: 0x00020000)
+            private static let RESERVE_OPFILTER             = CreateOptions(rawValue: 0x00100000)
+        }
+        
+        enum CreateDisposition: UInt32 {
+            /// If the file already exists, supersede it. Otherwise, create the file.
+            case SUPERSEDE      = 0x00000000
+            /// If the file already exists, return success; otherwise, fail the operation.
+            case OPEN           = 0x00000001
+            /// If the file already exists, fail the operation; otherwise, create the file.
+            case CREATE         = 0x00000002
+            /// Open the file if it already exists; otherwise, create the file.
+            case OPEN_IF        = 0x00000003
+            /// Overwrite the file if it already exists; otherwise, fail the operation.
+            case OVERWRITE      = 0x00000004
+            /// Overwrite the file if it already exists; otherwise, create the file.
+            case OVERWRITE_IF   = 0x00000005
+        }
+        
+        enum ImpersonationLevel: UInt32 {
+            case Anonymous = 0x00000000
+            case Identification = 0x00000001
+            case Impersonation = 0x00000002
+            case Delegate = 0x00000003
+        }
+    }
+    
+    struct CreateResponse: SMBResponse {
+        struct Header {
+            let size: UInt16
+            private let _oplockLevel: UInt8
+            var oplockLevel: OplockLevel {
+                return OplockLevel(rawValue: _oplockLevel)!
+            }
+            private let reserved: UInt32
+            let creationTime: SMBTime
+            let lastAccessTime: SMBTime
+            let lastWriteTime: SMBTime
+            let changeTime: SMBTime
+            let allocationSize: UInt64
+            let endOfFile: UInt64
+            let fileAttributes: FileAttributes
+            private let reserved2: UInt32
+            let fileId: FileId
+            let contextsOffset: UInt32
+            let ContextsLength: UInt32
+        }
+        
+        let header: CreateResponse.Header
+        let contexts: [CreateContext]
+        
+        init? (data: NSData) {
+            guard data.length >= sizeof(CreateResponse.Header.self) else {
+                return nil
+            }
+            self.header = decode(data)
+            if self.header.contextsOffset > 0 {
+                var contexts = [CreateContext]()
+                var contextOffset = Int(self.header.contextsOffset) - sizeof(SMB2.Header.self)
+                while contextOffset > 0 {
+                    guard contextOffset < data.length else {
+                        self.contexts = contexts
+                        return
+                    }
+                    let contextDataHeader = data.subdataWithRange(NSRange(location: contextOffset, length: sizeof(CreateContext.Header.self)))
+                    if let lastContextHeader = CreateContext(data: contextDataHeader) {
+                        let lastContextLen = Int(lastContextHeader.header.dataOffset) + Int(lastContextHeader.header.dataLength) - contextOffset
+                        let lastContextData = data.subdataWithRange(NSRange(location: contextOffset, length: lastContextLen))
+                        if let newContext = CreateContext(data: lastContextData) {
+                            contexts.append(newContext)
+                        }
+                        contextOffset = Int(lastContextHeader.header.next) - sizeof(SMB2.Header.self)
+                    }
+                }
+                self.contexts = contexts
+            } else {
+                self.contexts = []
+            }
+        }
+    }
+    
+    struct CreateContext {
+        struct Header {
+            var next: UInt32
+            let nameOffset: UInt16
+            let nameLength: UInt16
+            private let reserved: UInt16
+            let dataOffset: UInt16
+            let dataLength: UInt32
+        }
+        
+        var header: CreateContext.Header
+        let buffer: NSData
+        
+        init(name: ContextNames, data: NSData) {
+            let nameData = NSMutableData(data: (name.rawValue).dataUsingEncoding(NSUTF8StringEncoding)!)
+            self.header = CreateContext.Header(next: 0, nameOffset: 32, nameLength: UInt16(nameData.length), reserved: 0, dataOffset: UInt16(nameData.length), dataLength: UInt32(data.length))
+            self.buffer = data
+        }
+        
+        init(name: NSUUID, data: NSData) {
+            var uuid = uuid_t(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)
+            name.getUUIDBytes(&uuid.0)
+            let nameData = NSMutableData(bytes: &uuid, length: 16)
+            self.header = CreateContext.Header(next: 0, nameOffset: 32, nameLength: UInt16(nameData.length), reserved: 0, dataOffset: UInt16(nameData.length), dataLength: UInt32(data.length))
+            self.buffer = data
+        }
+        
+        init? (data: NSData) {
+            let headersize = sizeof(Header)
+            guard data.length > headersize else {
+                return nil
+            }
+            self.header = decode(data)
+            self.buffer = data.subdataWithRange(NSRange(location: headersize, length: data.length - headersize))
+        }
+        
+        func data() -> NSData {
+            let result = NSMutableData(data: encode(header))
+            result.appendData(buffer)
+            return result
+        }
+        
+        enum ContextNames: String {
+            /// Request Create Context: Extended attributes
+            case EA_BUFFER = "ExtA"
+            /// Request Create Context: Security descriptor
+            case SD_BUFFER = "SecD"
+            /// Request & Response Create Context: Open to be durable
+            case DURABLE_HANDLE = "DHnQ"
+            case DURABLE_HANDLE_RESPONSE_V2 = "DH2Q"
+            /// Request Create Context: Reconnect to a durable open after being disconnected
+            case DURABLE_HANDLE_RECONNECT = "DHnC"
+            /// Request Create Context: Required allocation size of the newly created file
+            case ALLOCATION_SIZE = "AISi"
+            /// Request & Response Create Context: Maximal access information
+            case QUERY_MAXIMAL_ACCESS = "MxAc"
+            case TIMEWARP_TOKEN = "TWrp"
+            /// Response Create Context: DiskID of the open file in a volume.
+            case QUERY_ON_DISK_ID = "QFid"
+            /// Response Create Context: A lease. This value is only supported for the SMB 2.1 and 3.x dialect family.
+            case LEASE = "RqLs"
+        }
+    }
+    
+    enum OplockLevel: UInt8 {
+        case NONE = 0x00
+        case LEVEL_II = 0x01
+        case EXCLUSIVE = 0x08
+        case BATCH = 0x09
+        case LEASE = 0xFF
+    }
+    
+    struct ShareAccess: OptionSetType {
+        let rawValue: UInt32
+        
+        init(rawValue: UInt32) {
+            self.rawValue = rawValue
+        }
+        
+        static let READ     = ShareAccess(rawValue: 0x00000001)
+        static let WRITE    = ShareAccess(rawValue: 0x00000002)
+        static let DELETE   = ShareAccess(rawValue: 0x00000004)
+    }
+    
+    struct FileAccessMask: OptionSetType {
+        let rawValue: UInt32
+        
+        init(rawValue: UInt32) {
+            self.rawValue = rawValue
+        }
+        
+        // File and Printer/Pipe Accesses
+        static let FILE_READ_DATA = FileAccessMask(rawValue: 0x00000001)
+        static let FILE_WRITE_DATA = FileAccessMask(rawValue: 0x00000002)
+        static let FILE_APPEND_DATA = FileAccessMask(rawValue: 0x00000004)
+        static let FILE_EXECUTE = FileAccessMask(rawValue: 0x00000020)
+        // Directory
+        static let FILE_LIST_DIRECTORY = FileAccessMask(rawValue: 0x00000001)
+        static let FILE_ADD_FILE = FileAccessMask(rawValue: 0x00000002)
+        static let FILE_ADD_SUBDIRECTORY = FileAccessMask(rawValue: 0x00000004)
+        static let FILE_TRAVERSE = FileAccessMask(rawValue: 0x00000020)
+        // Generic
+        static let FILE_READ_EA = FileAccessMask(rawValue: 0x00000008)
+        static let FILE_WRITE_EA = FileAccessMask(rawValue: 0x00000010)
+        static let FILE_DELETE_CHILD = FileAccessMask(rawValue: 0x00000040)
+        static let FILE_READ_ATTRIBUTES = FileAccessMask(rawValue: 0x00000080)
+        static let FILE_WRITE_ATTRIBUTES = FileAccessMask(rawValue: 0x00000100)
+        static let DELETE = FileAccessMask(rawValue: 0x00010000)
+        static let READ_CONTROL = FileAccessMask(rawValue: 0x00020000)
+        static let WRITE_DAC = FileAccessMask(rawValue: 0x00040000)
+        static let WRITE_OWNER = FileAccessMask(rawValue: 0x00080000)
+        static let SYNCHRONIZE = FileAccessMask(rawValue: 0x00100000)
+        static let ACCESS_SYSTEM_SECURITY = FileAccessMask(rawValue: 0x01000000)
+        static let MAXIMUM_ALLOWED = FileAccessMask(rawValue: 0x02000000)
+        static let GENERIC_ALL = FileAccessMask(rawValue: 0x10000000)
+        static let GENERIC_EXECUTE = FileAccessMask(rawValue: 0x20000000)
+        static let GENERIC_WRITE = FileAccessMask(rawValue: 0x40000000)
+        static let GENERIC_READ = FileAccessMask(rawValue: 0x80000000)
+    }
+    
+    struct FileAttributes: OptionSetType {
+        let rawValue: UInt32
+        
+        init(rawValue: UInt32) {
+            self.rawValue = rawValue
+        }
+        
+        static let READONLY             = FileAttributes(rawValue: 0x00000001)
+        static let HIDDEN               = FileAttributes(rawValue: 0x00000002)
+        static let SYSTEM               = FileAttributes(rawValue: 0x00000004)
+        static let DIRECTORY            = FileAttributes(rawValue: 0x00000010)
+        static let ARCHIVE              = FileAttributes(rawValue: 0x00000020)
+        static let NORMAL               = FileAttributes(rawValue: 0x00000080)
+        static let TEMPORARY            = FileAttributes(rawValue: 0x00000100)
+        static let SPARSE_FILE          = FileAttributes(rawValue: 0x00000200)
+        static let REPARSE_POINT        = FileAttributes(rawValue: 0x00000400)
+        static let COMPRESSED           = FileAttributes(rawValue: 0x00000800)
+        static let OFFLINE              = FileAttributes(rawValue: 0x00001000)
+        static let NOT_CONTENT_INDEXED  = FileAttributes(rawValue: 0x00002000)
+        static let ENCRYPTED            = FileAttributes(rawValue: 0x00004000)
+        static let INTEGRITY_STREAM     = FileAttributes(rawValue: 0x00008000)
+        static let NO_SCRUB_DATA        = FileAttributes(rawValue: 0x00020000)
+    }
+    
+    struct FileId {
+        let persistent: UInt64
+        let volatile: UInt64
+    }
+    
+    // MARK: SMB2 Close
+    
+    struct CloseRequest: SMBRequest {
+        let size: UInt16
+        let flags: CloseFlags
+        private let reserved2: UInt32
+        let filePersistantId: UInt64
+        let fileVolatileId: UInt64
+        
+        init(filePersistantId: UInt64, fileVolatileId: UInt64) {
+            self.size = 24
+            self.filePersistantId = filePersistantId
+            self.fileVolatileId = fileVolatileId
+            self.flags = []
+            self.reserved2 = 0
+        }
+        
+        func data() -> NSData {
+            return encode(self)
+        }
+    }
+    
+    struct CloseResponse: SMBResponse {
+        let size: UInt16
+        let flags: CloseFlags
+        private let reserved: UInt32
+        let creationTime: SMBTime
+        let lastAccessTime: SMBTime
+        let lastWriteTime: SMBTime
+        let changeTime: SMBTime
+        let allocationSize: UInt64
+        let endOfFile: UInt64
+        let fileAttributes: FileAttributes
+        
+        init? (data: NSData) {
+            self = decode(data)
+        }
+    }
+    
+    struct CloseFlags: OptionSetType {
+        let rawValue: UInt16
+        
+        init(rawValue: UInt16) {
+            self.rawValue = rawValue
+        }
+        
+        static let POSTQUERY_ATTRIB = Flags(rawValue: 0x0001)
+    }
+    
+    // MARK: SMB2 Flush
+    
+    struct FlushRequest: SMBRequest {
+        let size: UInt16
+        private let reserved: UInt16
+        private let reserved2: UInt32
+        let filePersistantId: UInt64
+        let fileVolatileId: UInt64
+        
+        init(filePersistantId: UInt64, fileVolatileId: UInt64) {
+            self.size = 24
+            self.filePersistantId = filePersistantId
+            self.fileVolatileId = fileVolatileId
+            self.reserved = 0
+            self.reserved2 = 0
+        }
+        
+        func data() -> NSData {
+            return encode(self)
+        }
+    }
+    
+    struct FlushResponse: SMBResponse {
+        let size: UInt16
+        let reserved: UInt16
+        
+        init() {
+            self.size = 4
+            self.reserved = 0
+        }
+        
+        init? (data: NSData) {
+            self = decode(data)
+        }
+    }
+}

Sources/SMBTypes/SMB2FileOperation.swift

@@ -0,0 +1,251 @@
+//
+//  SMB2FileOperation.swift
+//  ExtDownloader
+//
+//  Created by Amir Abbas Mousavian on 4/30/95.
+//  Copyright © 1395 Mousavian. All rights reserved.
+//
+
+import Foundation
+
+extension SMB2 {
+    // MARK: SMB2 Read
+    
+    struct ReadRequest: SMBRequest {
+        let size: UInt16
+        private let padding: UInt8
+        let flags: ReadRequest.Flags
+        let length: UInt32
+        let offset: UInt64
+        let fileId: FileId
+        let minimumLength: UInt32
+        private let _channel: UInt32
+        var channel: Channel {
+            return Channel(rawValue: _channel) ?? .NONE
+        }
+        let remainingBytes: UInt32
+        private let channelInfoOffset: UInt16
+        private let channelInfoLength: UInt16
+        private let channelBuffer: UInt8
+        
+        init (fileId: FileId, offset: UInt64, length: UInt32, flags: ReadRequest.Flags = [], minimumLength: UInt32 = 0, remainingBytes: UInt32 = 0, channel: Channel = .NONE) {
+            self.size = 49
+            self.padding = 0
+            self.flags = flags
+            self.length = length
+            self.offset = offset
+            self.fileId = fileId
+            self.minimumLength = minimumLength
+            self._channel = channel.rawValue
+            self.remainingBytes = remainingBytes
+            self.channelInfoOffset = 0
+            self.channelInfoLength = 0
+            self.channelBuffer = 0
+        }
+        
+        func data() -> NSData {
+            return encode(read)
+        }
+        
+        struct Flags: OptionSetType {
+            let rawValue: UInt8
+            
+            init(rawValue: UInt8) {
+                self.rawValue = rawValue
+            }
+            
+            static let UNBUFFERED = Flags(rawValue: 0x01)
+        }
+    }
+    
+    struct ReadRespone: SMBResponse {
+        struct Header {
+            let size: UInt16
+            let offset: UInt8
+            private let reserved: UInt8
+            let length: UInt32
+            let remaining: UInt32
+            private let reserved2: UInt32
+            
+        }
+        let header: ReadRespone.Header
+        let buffer: NSData
+        
+        init?(data: NSData) {
+            guard data.length > 16 else {
+                return nil
+            }
+            self.header = decode(data)
+            let headersize = sizeof(Header)
+            self.buffer = data.subdataWithRange(NSRange(location: headersize, length: data.length - headersize))
+        }
+    }
+    
+    enum Channel: UInt32 {
+        case NONE                   = 0x00000000
+        case RDMA_V1                = 0x00000001
+        case RDMA_V1_INVALIDATE     =  0x00000002
+    }
+    
+    // MARK: SMB2 Write
+    
+    struct WriteRequest: SMBRequest {
+        let header: WriteRequest.Header
+        let channelInfo: ChannelInfo?
+        let fileData: NSData
+        
+        struct Header {
+            let size: UInt16
+            let dataOffset: UInt16
+            let length: UInt32
+            let offset: UInt64
+            let fileId: FileId
+            private let _channel: UInt32
+            var channel: Channel {
+                return Channel(rawValue: _channel) ?? .NONE
+            }
+            let remainingBytes: UInt32
+            let channelInfoOffset: UInt16
+            let channelInfoLength: UInt16
+            let flags: WriteRequest.Flags
+        }
+        
+        init(fileId: FileId, offset: UInt64, remainingBytes: UInt32 = 0, data: NSData, channel: Channel = .NONE, channelInfo: ChannelInfo? = nil, flags: WriteRequest.Flags = []) {
+            var channelInfoOffset: UInt16 = 0
+            var channelInfoLength: UInt16 = 0
+            if channel != .NONE, let channelInfo = channelInfo {
+                channelInfoOffset = UInt16(sizeof(SMB2.Header.self) + sizeof(WriteRequest.Header.self))
+                channelInfoLength = UInt16(sizeof(channelInfo.dynamicType))
+            }
+            let dataOffset = UInt16(sizeof(SMB2.Header.self) + sizeof(WriteRequest.Header.self)) + channelInfoLength
+            self.header = WriteRequest.Header(size: UInt16(49), dataOffset: dataOffset, length: UInt32(data.length), offset: offset, fileId: fileId, _channel: channel.rawValue, remainingBytes: remainingBytes, channelInfoOffset: channelInfoOffset, channelInfoLength: channelInfoLength, flags: flags)
+            self.channelInfo = channelInfo
+            self.fileData = data
+        }
+        
+        func data() -> NSData {
+            let result = NSMutableData(data: encode(self.header))
+            if let channelInfo = channelInfo {
+                result.appendData(channelInfo.data())
+            }
+            result.appendData(fileData)
+            return result
+        }
+        
+        struct Flags: OptionSetType {
+            let rawValue: UInt32
+            
+            init(rawValue: UInt32) {
+                self.rawValue = rawValue
+            }
+            
+            static let THROUGH      = Flags(rawValue: 0x00000001)
+            static let UNBUFFERED   = Flags(rawValue: 0x00000002)
+        }
+    }
+    
+    struct WriteResponse: SMBResponse {
+        let size: UInt16
+        private let reserved: UInt16
+        let writtenBytes: UInt32
+        private let remaining: UInt32
+        private let channelInfoOffset: UInt16
+        private let channelInfoLength: UInt16
+        
+        init?(data: NSData) {
+            self = decode(data)
+        }
+    }
+    
+    struct ChannelInfo: SMBRequest {
+        let offset: UInt64
+        let token: UInt32
+        let length: UInt32
+        
+        func data() -> NSData {
+            return encode(data)
+        }
+    }
+    
+    // MARK: SMB2 Lock
+    
+    struct LockElement: SMBRequest {
+        let offset: UInt64
+        let length: UInt64
+        let flags: LockElement.Flags
+        private let reserved: UInt32
+        
+        func data() -> NSData {
+            return encode(self)
+        }
+        
+        struct Flags: OptionSetType {
+            let rawValue: UInt32
+            
+            init(rawValue: UInt32) {
+                self.rawValue = rawValue
+            }
+            
+            static let SHARED_LOCK      = Flags(rawValue: 0x00000001)
+            static let EXCLUSIVE_LOCK   = Flags(rawValue: 0x00000002)
+            static let UNLOCK           = Flags(rawValue: 0x00000004)
+            static let FAIL_IMMEDIATELY = Flags(rawValue: 0x00000010)
+        }
+    }
+    
+    struct LockRequest: SMBRequest {
+        let header: LockRequest.Header
+        let locks: [LockElement]
+        
+        init(fileId: FileId,locks: [LockElement], lockSequenceNumber : Int8 = 0, lockSequenceIndex: UInt32 = 0) {
+            self.header = LockRequest.Header(size: 48, lockCount: UInt16(locks.count), lockSequence: UInt32(lockSequenceNumber << 28) + lockSequenceIndex, fileId: fileId)
+            self.locks = locks
+        }
+        
+        func data() -> NSData {
+            let result = NSMutableData(data: encode(header))
+            for lock in locks {
+                result.appendData(encode(lock))
+            }
+            return result
+        }
+        
+        struct Header {
+            let size: UInt16
+            private let lockCount: UInt16
+            let lockSequence: UInt32
+            let fileId : FileId
+        }
+    }
+    
+    struct LockResponse: SMBResponse {
+        let size: UInt16
+        let reserved: UInt16
+        
+        init() {
+            self.size = 4
+            self.reserved = 0
+        }
+        
+        init? (data: NSData) {
+            self = decode(data)
+        }
+    }
+    
+    // MARK: SMB2 Cancel
+    
+    struct CancelRequest: SMBRequest {
+        let size: UInt16
+        let reserved: UInt16
+        
+        init() {
+            self.size = 4
+            self.reserved = 0
+        }
+        
+        func data() -> NSData {
+            return encode(self)
+        }
+    }
+
+}

Sources/SMBTypes/SMB2IOCtl.swift

@@ -0,0 +1,388 @@
+//
+//  SMB2IOCtl.swift
+//  ExtDownloader
+//
+//  Created by Amir Abbas Mousavian on 4/30/95.
+//  Copyright © 1395 Mousavian. All rights reserved.
+//
+
+import Foundation
+
+extension SMB2 {
+    // MARK: SMB2 IOCTL
+    
+    /**
+     * IOCtl usage is usually limited in SMB to pipe requests and duplicating file inside server
+     */
+    
+    struct IOCtlRequest: SMBRequest {
+        let header: Header
+        let requestData:  IOCtlRequestProtocol?
+        
+        init(fileId: FileId ,ctlCode: IOCtlCode, requestData: IOCtlRequestProtocol?, flags: IOCtlRequest.Flags = []) {
+            let offset = requestData != nil ? UInt32(sizeof(SMB2.Header.self) + sizeof(IOCtlRequest.Header.self)) : 0
+            self.header = Header(size: 57, reserved: 0, _ctlCode: ctlCode.rawValue, fileId: fileId, inputOffset: offset, inputCount: UInt32((requestData?.data().length ?? 0)), maxInputResponse: 0, outputOffset: offset, outputCount: 0, maxOutputResponse: UInt32(Int32.max), flags: flags, reserved2: 0)
+            self.requestData = requestData
+        }
+        
+        func data() -> NSData {
+            let result = NSMutableData(data: encode(self.header))
+            if let reqData = requestData?.data() {
+                result.appendData(reqData)
+            }
+            return result
+        }
+        
+        struct Header {
+            let size: UInt16
+            private let reserved: UInt16
+            private let _ctlCode: UInt32
+            var ctlCode: IOCtlCode {
+                return IOCtlCode(rawValue: _ctlCode)!
+            }
+            let fileId: FileId
+            let inputOffset: UInt32
+            let inputCount: UInt32
+            let maxInputResponse: UInt32
+            let outputOffset: UInt32
+            let outputCount: UInt32
+            let maxOutputResponse: UInt32
+            let flags: IOCtlRequest.Flags
+            private let reserved2: UInt32
+        }
+        
+        struct Flags: OptionSetType {
+            let rawValue: UInt32
+            
+            init(rawValue: UInt32) {
+                self.rawValue = rawValue
+            }
+            
+            static let IOCTL = Flags(rawValue: 0x00000000)
+            static let FSCTL = Flags(rawValue: 0x00000001)
+        }
+    }
+    
+    struct IOCtlResponse: SMBResponse {
+        let header: Header
+        let responseData:  IOCtlResponseProtocol?
+        
+        init?(data: NSData) {
+            self.header = decode(data)
+            let responseRange = NSRange(location: Int(self.header.outputOffset - 64), length: Int(self.header.outputCount))
+            let response = data.subdataWithRange(responseRange)
+            switch self.header.ctlCode {
+            case .SRV_COPYCHUNK, .SRV_COPYCHUNK_WRITE:
+                self.responseData = IOCtlResponseData.SrvCopyChunk(data: response)
+            case .SRV_ENUMERATE_SNAPSHOTS:
+                self.responseData = IOCtlResponseData.SrvSnapshots(data: response)
+            case .SRV_REQUEST_RESUME_KEY:
+                self.responseData = IOCtlResponseData.ResumeKey(data: response)
+            case .SRV_READ_HASH:
+                self.responseData = IOCtlResponseData.ReadHash(data: response)
+            case .QUERY_NETWORK_INTERFACE_INFO:
+                self.responseData = IOCtlResponseData.NetworkInterfaceInfo(data: response)
+            case .VALIDATE_NEGOTIATE_INFO:
+                self.responseData = IOCtlResponseData.ValidateNegotiateInfo(data: response)
+            default:
+                self.responseData = nil
+            }
+        }
+        
+        struct Header {
+            let size: UInt16
+            private let reserved: UInt16
+            private let _ctlCode: UInt32
+            var ctlCode: IOCtlCode {
+                return IOCtlCode(rawValue: _ctlCode)!
+            }
+            let fileId: FileId
+            let inputOffset: UInt32
+            let inputCount: UInt32
+            let outputOffset: UInt32
+            let outputCount: UInt32
+            private let flags: UInt32
+            private let reserved2: UInt32
+        }
+    }
+    
+    enum IOCtlCode: UInt32 {
+        case DFS_GET_REFERRALS              = 0x00060194
+        case DFS_GET_REFERRALS_EX           = 0x000601B0
+        case SET_REPARSE_POINT              = 0x000900A4
+        case FILE_LEVEL_TRIM                = 0x00098208
+        case PIPE_PEEK                      = 0x0011400C
+        case PIPE_WAIT                      = 0x00110018
+        /// PIPE_TRANSCEIVE is valid only on a named pipe with mode set to FILE_PIPE_MESSAGE_MODE.
+        case PIPE_TRANSCEIVE                = 0x0011C017
+        /// Get ResumeKey used by the client to uniquely identify the source file in an FSCTL_SRV_COPYCHUNK or FSCTL_SRV_COPYCHUNK_WRITE request.
+        case SRV_REQUEST_RESUME_KEY         = 0x00140078
+        /// Get all the revision time-stamps that are associated with the Tree Connect share in which the open resides
+        case SRV_ENUMERATE_SNAPSHOTS        = 0x00144064
+        /// Reads a chunk of file for performing server side copy operations.
+        case SRV_COPYCHUNK                  = 0x001440F2
+        /// Retrieve data from the Content Information File associated with a specified file, not valid for the SMB 2.0.2 dialect.
+        case SRV_READ_HASH                  = 0x001441BB
+        /// Writes the chunk of file for performing server side copy operations.
+        case SRV_COPYCHUNK_WRITE            = 0x001480F2
+        /// Request resiliency for a specified open file, not valid for the SMB 2.0.2 dialect.
+        case LMR_REQUEST_RESILIENCY         = 0x001401D4
+        /// Get server network interface info e.g. link speed and socket address information
+        case QUERY_NETWORK_INTERFACE_INFO   = 0x001401FC
+        /// Request validation of a previous SMB 2 NEGOTIATE, valid for SMB 3.0 and SMB 3.0.2 dialects.
+        case VALIDATE_NEGOTIATE_INFO        = 0x00140204
+    }
+    
+    struct IOCtlRequestData {
+        struct CopyChunk: IOCtlRequestProtocol {
+            let sourceKey: (UInt64, UInt64, UInt64)
+            let chunkCount: UInt32
+            let chunks: [Chunk]
+            
+            func data() -> NSData {
+                let result = NSMutableData(data: encode(sourceKey))
+                result.appendData(encode(chunkCount))
+                var reserved: UInt32 = 0
+                result.appendData(encode(&reserved))
+                return NSData()
+            }
+            
+            struct Chunk {
+                let sourceOffset: UInt64
+                let targetOffset: UInt64
+                let length: UInt32
+                private let reserved: UInt32
+                
+                func data() -> NSData {
+                    return encode(self)
+                }
+            }
+        }
+        
+        struct ReadHash: IOCtlRequestProtocol {
+            let _hashType: UInt32
+            var hashType: IOCtlHashType {
+                return IOCtlHashType(rawValue: _hashType) ?? .PEER_DIST
+            }
+            let _hashVersion: UInt32
+            var hashVersion: IOCtlHashVersion {
+                return IOCtlHashVersion(rawValue: _hashVersion) ?? .VER_1
+            }
+            let _hashRetrievalType: UInt32
+            var hashRetrievalType: IOCtlHashRetrievalType {
+                return IOCtlHashRetrievalType(rawValue: _hashRetrievalType) ?? .FILE_BASED
+            }
+            let length: UInt32
+            let offset: UInt64
+            
+            init(offset: UInt64, length: UInt32, hashType: IOCtlHashType = .PEER_DIST, hashVersion: IOCtlHashVersion = .VER_1, hashRetrievalType: IOCtlHashRetrievalType = .FILE_BASED) {
+                self._hashType = hashType.rawValue
+                self._hashVersion = hashVersion.rawValue
+                self._hashRetrievalType = hashRetrievalType.rawValue
+                self.length = length
+                self.offset = offset
+            }
+            
+            func data() -> NSData {
+                return encode(self)
+            }
+        }
+        
+        struct ResilencyRequest: IOCtlRequestProtocol {
+            let timeout: UInt32
+            private let reserved: UInt32
+            
+            /// The requested time the server holds the file open after a disconnect before releasing it. This time is in milliseconds.
+            init(timeout: UInt32) {
+                self.timeout = timeout
+                self.reserved = 0
+            }
+            
+            func data() -> NSData {
+                return encode(self)
+            }
+        }
+        
+        struct ValidateNegotiateInfo: IOCtlRequestProtocol {
+            let header: ValidateNegotiateInfo.Header
+            let dialects: [UInt16]
+            
+            init(dialects: [UInt16], guid: uuid_t, capabilities: IOCtlCapabilities, securityMode: UInt16) {
+                self.header = Header(capabilities: capabilities, guid: guid, securityMode: securityMode, dialectCount: UInt16(dialects.count))
+                self.dialects = dialects
+            }
+            
+            func data() -> NSData {
+                let result = NSMutableData(data: encode(self.header))
+                dialects.forEach { result.appendData(encode($0)) }
+                return result
+            }
+            
+            struct Header {
+                let capabilities: IOCtlCapabilities
+                /// Client's GUID
+                let guid: uuid_t
+                let securityMode: UInt16
+                let dialectCount: UInt16
+            }
+        }
+    }
+    
+    struct IOCtlResponseData {
+        // SRV_COPYCHUNK, SRV_COPYCHUNK_WRITE
+        struct SrvCopyChunk: IOCtlResponseProtocol {
+            let chunksCount: UInt32
+            let chunksBytesWritten: UInt32
+            let totalBytesWriiten: UInt32
+            
+            init?(data: NSData) {
+                self = decode(data)
+            }
+        }
+        
+        // SRV_ENUMERATE_SNAPSHOTS
+        struct SrvSnapshots: IOCtlResponseProtocol {
+            let count: UInt32
+            let snapshots: [SMBTime]
+            
+            init?(data: NSData) {
+                self.count = decode(data)
+                let returnedCount: UInt32 = decode(data.subdataWithRange(NSRange(location: 4, length: 4)))
+                //let size: UInt32 = decode(data.subdataWithRange(NSRange(location: 8, length: 4)))
+                var snapshots = [SMBTime]()
+                let dateFormatter = NSDateFormatter()
+                dateFormatter.dateFormat = "'@GMT-'yyyy'.'MM'.'dd'-'HH'.'mm'.'ss"
+                for i in 0..<Int(returnedCount) {
+                    let offset = 24 + i * 48
+                    if data.length < offset + 48 {
+                        return nil
+                    }
+                    let datestring = String(data: data.subdataWithRange(NSRange(location: offset, length: 48)), encoding: NSUTF16StringEncoding)
+                    if let datestring = datestring, let date = dateFormatter.dateFromString(datestring) {
+                        snapshots.append(SMBTime(date: date))
+                    }
+                }
+                self.snapshots = snapshots
+            }
+        }
+        
+        struct ResumeKey: IOCtlResponseProtocol {
+            let key: (UInt64, UInt64, UInt64)
+            private let contextLength: UInt32
+            private let context: UInt32
+            
+            init?(data: NSData) {
+                self = decode(data)
+            }
+        }
+        
+        struct ReadHash: IOCtlResponseProtocol {
+            // TODO: Implement IOCTL READ_HASH
+            
+            init?(data: NSData) {
+                self = decode(data)
+            }
+        }
+        
+        struct NetworkInterfaceInfo: IOCtlResponseProtocol {
+            let items: [NetworkInterfaceInfo.Item]
+            
+            init?(data: NSData) {
+                let count = data.length / sizeof(Item)
+                guard count > 0 else {
+                    return nil
+                }
+                var items = [Item]()
+                for i in 0..<count {
+                    let itemdata = data.subdataWithRange(NSRange(location: i * sizeof(Item), length: sizeof(Item)))
+                    items.append(decode(itemdata))
+                }
+                self.items = items
+            }
+            
+            struct Item {
+                /// The offset, in bytes, from the beginning of this structure to the beginning of a subsequent 8-byte aligned network interface.
+                let next: UInt32
+                /// specifies the network interface index.
+                let ifIndex: UInt32
+                let capability: IOCtlCapabilities
+                private let reserved: UInt32
+                /// Speed of the network interface in bits per second
+                let linkSpeed: UInt64
+                private let sockaddrStorage:   (UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
+                UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
+                UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
+                UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
+                UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
+                UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
+                UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
+                UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
+                UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
+                UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
+                UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
+                UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
+                UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
+                UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
+                UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
+                UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8)
+                var family: sa_family_t {
+                    return sockaddrStorage.1
+                }
+                
+                static let ipv4: sa_family_t = 0x02
+                static let ipv6: sa_family_t = 0x17
+                
+                var sockaddr: sockaddr_in {
+                    var sockaddrStorage = self.sockaddrStorage
+                    let data = NSData(bytes: &sockaddrStorage, length: 16)
+                    return decode(data)
+                }
+                
+                var sockaddr6: sockaddr_in6 {
+                    var sockaddrStorage = self.sockaddrStorage
+                    let data = NSData(bytes: &sockaddrStorage, length: 28)
+                    return decode(data)
+                }
+            }
+        }
+        
+        struct ValidateNegotiateInfo: IOCtlResponseProtocol {
+            let capabilities: IOCtlCapabilities
+            let guid: uuid_t
+            let securityMode: UInt16
+            private let _dialect: UInt16
+            var dialect: (major: Int, minor: Int) {
+                return (major: Int(_dialect & 0xFF), minor: Int(_dialect >> 8))
+            }
+            
+            init?(data: NSData) {
+                self = decode(data)
+            }
+        }
+    }
+    
+    struct IOCtlCapabilities: OptionSetType {
+        let rawValue: UInt32
+        
+        init(rawValue: UInt32) {
+            self.rawValue = rawValue
+        }
+        
+        static let RSS_CAPABLE  = IOCtlCapabilities(rawValue: 0x00000001)
+        static let RDMA_CAPABLE = IOCtlCapabilities(rawValue: 0x00000002)
+    }
+    
+    enum IOCtlHashType: UInt32 {
+        case PEER_DIST = 0x00000001
+    }
+    
+    enum IOCtlHashVersion: UInt32 {
+        case VER_1 = 0x00000001
+        case VER_2 = 0x00000002
+    }
+    
+    enum IOCtlHashRetrievalType: UInt32 {
+        case HASH_BASED = 0x00000001
+        case FILE_BASED = 0x00000002
+    }
+}

Sources/SMBTypes/SMB2Query.swift

@@ -0,0 +1,18 @@
+//
+//  SMB2Query.swift
+//  ExtDownloader
+//
+//  Created by Amir Abbas Mousavian on 4/31/95.
+//  Copyright © 1395 Mousavian. All rights reserved.
+//
+
+import Foundation
+
+extension SMB2 {
+    // MARK: SMB2 Query Directory
+    
+    // MARK: SMB2 Change Notify
+    
+    // MARK: SMB2 Query Info
+    
+}

Sources/SMBTypes/SMB2Session.swift

@@ -0,0 +1,318 @@
+//
+//  SMB2NegotiationTypes.swift
+//  ExtDownloader
+//
+//  Created by Amir Abbas Mousavian on 4/30/95.
+//  Copyright © 1395 Mousavian. All rights reserved.
+//
+
+import Foundation
+
+extension SMB2 {
+    // MARK: SMB2 Negotiating
+    
+    struct NegotiateRequest: SMBRequest {
+        let request: NegotiateRequest.Header
+        let dialects: [UInt16]
+        let contexts: [(type: NegotiateContextType, data: NSData)]
+        
+        init(request: NegotiateRequest.Header, dialects: [UInt16] = [0x0202], contexts: [(type: NegotiateContextType, data: NSData)] = []) {
+            self.request = request
+            self.dialects = dialects
+            self.contexts = contexts
+        }
+        
+        func data() -> NSData {
+            var request = self.request
+            request.dialectCount = UInt16(dialects.count)
+            let dialectData = NSMutableData()
+            for dialect in dialects {
+                var dialect = dialect
+                dialectData.appendBytes(&dialect, length: 2)
+            }
+            let pad = ((1024 - dialectData.length) % 8)
+            dialectData.increaseLengthBy(pad)
+            request.contextOffset = UInt32(sizeof(request.dynamicType.self)) + UInt32(dialectData.length)
+            request.contextCount = UInt16(contexts.count)
+            
+            let contextData = NSMutableData()
+            for context in contexts {
+                var contextType = context.type.rawValue
+                contextData.appendBytes(&contextType, length: 2)
+                var dataLen = UInt16(context.data.length)
+                contextData.increaseLengthBy(4)
+                contextData.appendBytes(&dataLen, length: 2)
+            }
+            let result = NSMutableData(data: encode(&request))
+            result.appendData(dialectData)
+            result.appendData(contextData)
+            return result
+        }
+        
+        struct Header {
+            var size: UInt16
+            var dialectCount: UInt16
+            let singing: NegotiateSinging
+            private let reserved: UInt16
+            let capabilities: GlobalCapabilities
+            let guid: uuid_t
+            var contextOffset: UInt32
+            var contextCount: UInt16
+            private let reserved2: UInt16
+            var clientStartTime: SMBTime {
+                let time = UInt64(contextOffset) + (UInt64(contextCount) << 32) + (UInt64(contextCount) << 48)
+                return SMBTime(time: time)
+            }
+            
+            init(singing: NegotiateSinging = [.ENABLED], capabilities: GlobalCapabilities, guid: uuid_t? = nil, clientStartTime: SMBTime? = nil) {
+                self.size = 36
+                self.dialectCount = 0
+                self.singing = singing
+                self.reserved = 0
+                self.capabilities = capabilities
+                self.guid = guid ?? (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
+                if let clientStartTime = clientStartTime {
+                    let time = clientStartTime.time
+                    self.contextOffset = UInt32(time & 0xffffffff)
+                    self.contextCount = UInt16(time & 0x0000ffff00000000 >> 32)
+                    self.reserved2 = UInt16(time >> 48)
+                } else {
+                    self.contextOffset = 0
+                    self.contextCount = 0
+                    self.reserved2 = 0
+                }
+            }
+        }
+    }
+    
+    struct NegotiateResponse: SMBResponse {
+        let header: NegotiateResponse.Header
+        let buffer: NSData?
+        let contexts: [(type: NegotiateContextType, data: NSData)]
+        
+        init? (data: NSData) {
+            if data.length < 64 {
+                return nil
+            }
+            self.header = decode(data)
+            if Int(header.size) != 65 {
+                return nil
+            }
+            let bufOffset = Int(self.header.bufferOffset) - sizeof(SMB2.Header.self)
+            let bufLen = Int(self.header.bufferLength)
+            if bufOffset > 0 && bufLen > 0 && data.length >= bufOffset + bufLen {
+                self.buffer = data.subdataWithRange(NSRange(location: bufOffset, length: bufLen))
+            } else {
+                self.buffer = nil
+            }
+            let contextCount = Int(self.header.contextCount)
+            let contextOffset = Int(self.header.contextOffset) - sizeof(SMB2.Header.self)
+            if  contextCount > 0 &&  contextOffset > 0 {
+                // TODO: NegotiateResponse context support for SMB3
+                self.contexts = []
+            } else {
+                self.contexts = []
+            }
+        }
+        
+        struct Header {
+            let size: UInt16
+            let singing: NegotiateSinging
+            let dialect: UInt16
+            let contextCount: UInt16
+            let serverGuid: uuid_t
+            let capabilities: GlobalCapabilities
+            let maxTransactSize: UInt32
+            let maxReadSize: UInt32
+            let maxWriteSize: UInt32
+            let systemTime: SMBTime
+            let serverStartTime: SMBTime
+            let bufferOffset: UInt16
+            let bufferLength: UInt16
+            let contextOffset: UInt32
+        }
+    }
+    
+    struct NegotiateSinging: OptionSetType {
+        let rawValue: UInt16
+        
+        init(rawValue: UInt16) {
+            self.rawValue = rawValue
+        }
+        static let ENABLED   = NegotiateSinging(rawValue: 0x0001)
+        static let REQUIRED  = NegotiateSinging(rawValue: 0x0002)
+    }
+    
+    struct NegotiateContextType: OptionSetType {
+        let rawValue: UInt16
+        
+        init(rawValue: UInt16) {
+            self.rawValue = rawValue
+        }
+        static let PREAUTH_INTEGRITY_CAPABILITIES   = NegotiateContextType(rawValue: 0x0001)
+        static let ENCRYPTION_CAPABILITIES          = NegotiateContextType(rawValue: 0x0002)
+    }
+    
+    struct GlobalCapabilities: OptionSetType {
+        let rawValue: UInt32
+        
+        init(rawValue: UInt32) {
+            self.rawValue = rawValue
+        }
+        static let DFS                  = GlobalCapabilities(rawValue: 0x00000001)
+        static let LEASING              = GlobalCapabilities(rawValue: 0x00000002)
+        static let LARGE_MTU            = GlobalCapabilities(rawValue: 0x00000004)
+        static let MULTI_CHANNEL        = GlobalCapabilities(rawValue: 0x00000008)
+        static let PERSISTENT_HANDLES   = GlobalCapabilities(rawValue: 0x00000010)
+        static let DIRECTORY_LEASING    = GlobalCapabilities(rawValue: 0x00000020)
+        static let ENCRYPTION           = GlobalCapabilities(rawValue: 0x00000040)
+    }
+    
+    // MARK: SMB2 Session Setup
+    
+    struct SessionSetupRequest: SMBRequest {
+        let header: SessionSetupRequest.Header
+        let buffer: NSData?
+        
+        init(header: SessionSetupRequest.Header, buffer: NSData) {
+            self.header = header
+            self.buffer = buffer
+        }
+        
+        func data() -> NSData {
+            var header = self.header
+            header.bufferOffset = UInt16(sizeof(SMB2.Header.self) + sizeof(SessionSetupRequest.Header.self))
+            header.bufferLength = UInt16(buffer?.length ?? 0)
+            let result = NSMutableData(data: encode(&header))
+            if let buffer = self.buffer {
+                result.appendData(buffer)
+            }
+            return result
+        }
+        
+        struct Header {
+            let size: UInt16
+            let flags: SessionSetupRequest.Flags
+            let signing: SessionSetupSinging
+            let capabilities: GlobalCapabilities
+            private let channel: UInt32
+            var bufferOffset: UInt16
+            var bufferLength: UInt16
+            let sessionId: UInt64
+            
+            init(sessionId: UInt64, flags: SessionSetupRequest.Flags = [], singing: SessionSetupSinging, capabilities: GlobalCapabilities) {
+                self.size = 25
+                self.flags = flags
+                self.signing = singing
+                self.capabilities = capabilities
+                self.channel = 0
+                self.bufferOffset = 0
+                self.bufferLength = 0
+                self.sessionId = sessionId
+            }
+        }
+        
+        /// Works the client implements the SMB 3.x dialect family
+        struct Flags: OptionSetType {
+            let rawValue: UInt8
+            
+            init(rawValue: UInt8) {
+                self.rawValue = rawValue
+            }
+            
+            static let BINDING = NegotiateSinging(rawValue: 0x01)
+        }
+    }
+    
+    struct SessionSetupResponse: SMBResponse {
+        let header: SessionSetupResponse.Header
+        let buffer: NSData?
+        
+        init? (data: NSData) {
+            if data.length < 64 {
+                return nil
+            }
+            self.header = decode(data)
+            if Int(header.size) != 9 {
+                return nil
+            }
+            let bufOffset = Int(self.header.bufferOffset) - sizeof(SMB2.Header.self)
+            let bufLen = Int(self.header.bufferLength)
+            if bufOffset > 0 && bufLen > 0 && data.length >= bufOffset + bufLen {
+                self.buffer = data.subdataWithRange(NSRange(location: bufOffset, length: bufLen))
+            } else {
+                self.buffer = nil
+            }
+        }
+        
+        struct Header {
+            let size: UInt16
+            let flags: SessionSetupResponse.Flags
+            let bufferOffset: UInt16
+            let bufferLength: UInt16
+        }
+        
+        struct Flags: OptionSetType {
+            let rawValue: UInt16
+            
+            init(rawValue: UInt16) {
+                self.rawValue = rawValue
+            }
+            
+            static let IS_GUEST     = Flags(rawValue: 0x0001)
+            static let IS_NULL      = Flags(rawValue: 0x0002)
+            static let ENCRYPT_DATA = Flags(rawValue: 0x0004)
+        }
+    }
+    
+    struct SessionSetupSinging: OptionSetType {
+        let rawValue: UInt8
+        
+        init(rawValue: UInt8) {
+            self.rawValue = rawValue
+        }
+        
+        static let ENABLED   = NegotiateSinging(rawValue: 0x01)
+        static let REQUIRED  = NegotiateSinging(rawValue: 0x02)
+    }
+    
+    // MARK: SMB2 Log off
+    
+    struct LogOff: SMBRequest, SMBResponse {
+        let size: UInt16
+        let reserved: UInt16
+        
+        init() {
+            self.size = 4
+            self.reserved = 0
+        }
+        
+        init? (data: NSData) {
+            self = decode(data)
+        }
+        
+        func data() -> NSData {
+            return encode(self)
+        }
+    }
+    
+    // MARK: SMB2 Echo
+    
+    struct Echo: SMBRequest, SMBResponse {
+        let size: UInt16
+        let reserved: UInt16
+        
+        init() {
+            self.size = 4
+            self.reserved = 0
+        }
+        
+        init? (data: NSData) {
+            self = decode(data)
+        }
+        
+        func data() -> NSData {
+            return encode(self)
+        }
+    }
+}

Sources/SMBTypes/SMB2SetInfo.swift

@@ -0,0 +1,14 @@
+//
+//  SMB2SetInfo.swift
+//  ExtDownloader
+//
+//  Created by Amir Abbas Mousavian on 4/31/95.
+//  Copyright © 1395 Mousavian. All rights reserved.
+//
+
+import Foundation
+
+extension SMB2 {
+    // MARK: SMB2 Set Info
+    
+}

Sources/SMBTypes/SMB2Tree.swift

@@ -0,0 +1,151 @@
+//
+//  SMB2Tree.swift
+//  ExtDownloader
+//
+//  Created by Amir Abbas Mousavian on 4/30/95.
+//  Copyright © 1395 Mousavian. All rights reserved.
+//
+
+import Foundation
+
+extension SMB2 {
+    // MARK: SMB2 Tree Connect
+    
+    struct TreeConnectRequest: SMBRequest {
+        let header: TreeConnectRequest.Header
+        let buffer: NSData?
+        var path: String {
+            return ""
+        }
+        var share: String {
+            return ""
+        }
+        
+        init? (header: TreeConnectRequest.Header, host: String, share: String) {
+            guard !host.containsString("/") && !host.containsString("/") && !share.containsString("/") && !share.containsString("/") else {
+                return nil
+            }
+            self.header = header
+            let path = "\\\\\(host)\\\(share)"
+            self.buffer = path.dataUsingEncoding(NSUTF8StringEncoding)
+        }
+        
+        func data() -> NSData {
+            var header = self.header
+            header.pathOffset = UInt16(sizeof(SMB2.Header.self) + sizeof(TreeConnectRequest.Header.self))
+            header.pathLength = UInt16(buffer?.length ?? 0)
+            let result = NSMutableData(data: encode(&header))
+            if let buffer = self.buffer {
+                result.appendData(buffer)
+            }
+            return result
+        }
+        
+        struct Header {
+            let size: UInt16
+            let flags: TreeConnectRequest.Flags
+            var pathOffset: UInt16
+            var pathLength: UInt16
+            
+            init(flags: TreeConnectRequest.Flags) {
+                self.size = 9
+                self.flags = flags
+                self.pathOffset = 0
+                self.pathLength = 0
+            }
+        }
+        
+        struct Flags: OptionSetType {
+            let rawValue: UInt16
+            
+            init(rawValue: UInt16) {
+                self.rawValue = rawValue
+            }
+            
+            static let SHAREFLAG_CLUSTER_RECONNECT = Flags(rawValue: 0x0001)
+        }
+    }
+    
+    struct TreeConnectResponse: SMBResponse {
+        let size: UInt16  // = 16
+        private let _type: UInt8
+        var type: ShareType {
+            return ShareType(rawValue: _type) ?? .UNKNOWN
+        }
+        private let reserved: UInt8
+        let flags: TreeConnectResponse.ShareFlags
+        let capabilities: TreeConnectResponse.Capabilities
+        let maximalAccess: FileAccessMask
+        
+        init? (data: NSData) {
+            if data.length != 16 {
+                return nil
+            }
+            self = decode(data)
+        }
+        
+        enum ShareType: UInt8 {
+            case UNKNOWN  = 0x00
+            case DISK     = 0x01
+            case PIPE     = 0x02
+            case PRINT    = 0x03
+        }
+        
+        struct ShareFlags: OptionSetType {
+            let rawValue: UInt32
+            
+            init(rawValue: UInt32) {
+                self.rawValue = rawValue
+            }
+            
+            static let DFS                          = ShareFlags(rawValue: 0x00000001)
+            static let DFS_ROOT                     = ShareFlags(rawValue: 0x00000002)
+            static let MANUAL_CACHING               = ShareFlags(rawValue: 0x00000000)
+            static let AUTO_CACHING                 = ShareFlags(rawValue: 0x00000010)
+            static let VDO_CACHING                  = ShareFlags(rawValue: 0x00000020)
+            static let NO_CACHING                   = ShareFlags(rawValue: 0x00000030)
+            static let RESTRICT_EXCLUSIVE_OPENS     = ShareFlags(rawValue: 0x00000100)
+            static let FORCE_SHARED_DELETE          = ShareFlags(rawValue: 0x00000200)
+            static let ALLOW_NAMESPACE_CACHING      = ShareFlags(rawValue: 0x00000400)
+            static let ACCESS_BASED_DIRECTORY_ENUM  = ShareFlags(rawValue: 0x00000800)
+            static let FORCE_LEVELII_OPLOCK         = ShareFlags(rawValue: 0x00001000)
+            static let ENABLE_HASH_V1               = ShareFlags(rawValue: 0x00002000)
+            static let ENABLE_HASH_V2               = ShareFlags(rawValue: 0x00004000)
+            static let ENCRYPT_DATA                 = ShareFlags(rawValue: 0x00008000)
+        }
+        
+        struct Capabilities: OptionSetType {
+            let rawValue: UInt32
+            
+            init(rawValue: UInt32) {
+                self.rawValue = rawValue
+            }
+            
+            static let DFS                      = Capabilities(rawValue: 0x00000008)
+            static let CONTINUOUS_AVAILABILITY  = Capabilities(rawValue: 0x00000010)
+            static let SCALEOUT                 = Capabilities(rawValue: 0x00000020)
+            static let CLUSTER                  = Capabilities(rawValue: 0x00000040)
+            static let ASYMMETRIC               = Capabilities(rawValue: 0x00000080)
+        }
+    }
+    
+    // MARK: SMB2 Tree Disconnect
+    
+    struct TreeDisconnect: SMBRequest, SMBResponse {
+        let size: UInt16
+        let reserved: UInt16
+        
+        init() {
+            self.size = 4
+            self.reserved = 0
+        }
+        
+        init? (data: NSData) {
+            self = decode(data)
+        }
+        
+        func data() -> NSData {
+            return encode(self)
+        }
+    }
+}

Sources/SMBTypes/SMB2Types.swift

@@ -0,0 +1,131 @@
+//
+//  SMB2Types.swift
+//  FileProvider
+//
+//  Created by Amir Abbas Mousavian.
+//  Copyright © 2016 Mousavian. Distributed under MIT license.
+//
+
+import Foundation
+
+// SMB2 Types
+struct SMB2 {
+    struct Header: FileProviderSMBHeader { // 64 bytes
+        // header is always \u{fe}SMB
+        let protocolID: UInt32
+        static let protocolConst: UInt32 = 0x424d53fe
+        let size: UInt16
+        let creditCharge: UInt16
+        // error messages from the server to the client
+        let status: UInt32
+        enum StatusSeverity: UInt8 {
+            case Success = 0, Information, Warning, Error
+        }
+        var statusDetails: (severity: StatusSeverity, customer: Bool, facility: UInt16, code: UInt16) {
+            let severity = StatusSeverity(rawValue: UInt8(status >> 30))!
+            return (severity, status & 0x20000000 != 0, UInt16((status & 0x0FFF0000) >> 16), UInt16(status & 0x0000FFFF))
+        }
+        private let _command: UInt16
+        var command: Command {
+            get {
+                return Command(rawValue: _command) ?? .INVALID
+            }
+        }
+        let creditRequestResponse: UInt16
+        let flags: Flags
+        var nextCommand: UInt32
+        let messageId: UInt64
+        private let reserved: UInt32
+        let treeId: UInt32
+        var asyncId: UInt64 {
+            get {
+                return UInt64(reserved) + (UInt64(treeId) << 32)
+            }
+        }
+        let sessionId: UInt64
+        let signature: (UInt64, UInt64)
+        
+        init(command: Command, status: NTStatus = .SUCCESS, creditCharge: UInt16 = 0, creditRequestResponse: UInt16, flags: Flags = [], nextCommand: UInt32 = 0, messageId: UInt64, treeId: UInt32, sessionId: UInt64, signature: (UInt64, UInt64) = (0, 0)) {
+            self.protocolID = self.dynamicType.protocolConst
+            self.size = 64
+            self.status = status.rawValue
+            self._command = command.rawValue
+            self.creditCharge = creditCharge
+            self.creditRequestResponse = creditRequestResponse
+            self.flags = flags
+            self.nextCommand = nextCommand
+            self.messageId = messageId
+            self.reserved = 0
+            self.treeId = treeId
+            self.sessionId = sessionId
+            self.signature = signature
+        }
+        
+        init(asyncCommand: Command, status: NTStatus = .SUCCESS, creditCharge: UInt16 = 0, creditRequestResponse: UInt16, flags: Flags = [.ASYNC_COMMAND], nextCommand: UInt32 = 0, messageId: UInt64, asyncId: UInt64, sessionId: UInt64, signature: (UInt64, UInt64) = (0, 0)) {
+            self.protocolID = self.dynamicType.protocolConst
+            self.size = 64
+            self.status = status.rawValue
+            self._command = asyncCommand.rawValue
+            self.creditCharge = creditCharge
+            self.creditRequestResponse = creditRequestResponse
+            self.flags = flags.union([Flags.ASYNC_COMMAND])
+            self.nextCommand = nextCommand
+            self.messageId = messageId
+            self.reserved = UInt32(asyncId & 0xffffffff)
+            self.treeId = UInt32(asyncId >> 32)
+            self.sessionId = sessionId
+            self.signature = signature
+        }
+    }
+    
+    struct Flags: OptionSetType {
+        var rawValue: UInt32
+        
+        init(rawValue: UInt32) {
+            self.rawValue = rawValue
+        }
+        
+        var priorityMask: UInt8 {
+            get {
+                return UInt8((rawValue & Flags.PRIORITY_MASK.rawValue)  >> 4)
+            }
+            set {
+                rawValue = (rawValue & 0xffffff8f) | (UInt32(newValue & 0x7) << 4)
+            }
+        }
+        
+        static let SERVER_TO_REDIR       = Flags(rawValue: 0x00000001)
+        static let ASYNC_COMMAND         = Flags(rawValue: 0x00000002)
+        static let RELATED_OPERATIONS    = Flags(rawValue: 0x00000004)
+        static let SIGNED                = Flags(rawValue: 0x00000008)
+        private static let PRIORITY_MASK = Flags(rawValue: 0x00000070)
+        static let DFS_OPERATIONS        = Flags(rawValue: 0x10000000)
+        static let REPLAY_OPERATION      = Flags(rawValue: 0x20000000)
+    }
+    
+    enum Command: UInt16 {
+        case NEGOTIATE              = 0x0000
+        case SESSION_SETUP          = 0x0001
+        case LOGOFF                 = 0x0002
+        case TREE_CONNECT           = 0x0003
+        case TREE_DISCONNECT        = 0x0004
+        case CREATE                 = 0x0005
+        case CLOSE                  = 0x0006
+        case FLUSH                  = 0x0007
+        case READ                   = 0x0008
+        case WRITE                  = 0x0009
+        case LOCK                   = 0x000A
+        case IOCTL                  = 0x000B
+        case CANCEL                 = 0x000C
+        case ECHO                   = 0x000D
+        case QUERY_DIRECTORY        = 0x000E
+        case CHANGE_NOTIFY          = 0x000F
+        case QUERY_INFO             = 0x0010
+        case SET_INFO               = 0x0011
+        case OPLOCK_BREAK           = 0x0012
+        case INVALID                = 0xFFFF
+    }
+    
+    // MARK: SMB2 Oplock Break
+    
+}

Sources/SMBTypes/SMBErrorType.swift

@@ -0,0 +1,208 @@
+//
+//  SMBErrorType.swift
+//  ExtDownloader
+//
+//  Created by Amir Abbas Mousavian on 4/30/95.
+//  Copyright © 1395 Mousavian. All rights reserved.
+//
+
+import Foundation
+
+/// Error Types and Description
+
+enum NTStatus: UInt32, ErrorType, CustomStringConvertible {
+    case SUCCESS                        = 0x00000000
+    case NOT_IMPLEMENTED                = 0xC0000002
+    case INVALID_DEVICE_REQUEST         = 0xC0000010
+    case ILLEGAL_FUNCTION               = 0xC00000AF
+    case NO_SUCH_FILE                   = 0xC000000F
+    case NO_SUCH_DEVICE                 = 0xC000000E
+    case OBJECT_NAME_NOT_FOUND          = 0xC0000034
+    case OBJECT_PATH_INVALID            = 0xC0000039
+    case OBJECT_PATH_NOT_FOUND          = 0xC000003A
+    case OBJECT_PATH_SYNTAX_BAD         = 0xC000003B
+    case DFS_EXIT_PATH_FOUND            = 0xC000009B
+    case REDIRECTOR_NOT_STARTED         = 0xC00000FB
+    case TOO_MANY_OPENED_FILES          = 0xC000011F
+    case ACCESS_DENIED                  = 0xC0000022
+    case INVALID_LOCK_SEQUENCE          = 0xC000001E
+    case INVALID_VIEW_SIZE              = 0xC000001F
+    case ALREADY_COMMITTED              = 0xC0000021
+    case PORT_CONNECTION_REFUSED        = 0xC0000041
+    case THREAD_IS_TERMINATING          = 0xC000004B
+    case DELETE_PENDING                 = 0xC0000056
+    case PRIVILEGE_NOT_HELD             = 0xC0000061
+    case LOGON_FAILURE                  = 0xC000006D
+    case FILE_IS_A_DIRECTORY            = 0xC00000BA
+    case FILE_RENAMED                   = 0xC00000D5
+    case PROCESS_IS_TERMINATING         = 0xC000010A
+    case DIRECTORY_NOT_EMPTY            = 0xC0000101
+    case CANNOT_DELETE                  = 0xC0000121
+    case FILE_NOT_AVAILABLE             = 0xC0000467
+    case FILE_DELETED                   = 0xC0000123
+    case SMB_BAD_FID                    = 0x00060001
+    case INVALID_HANDLE                 = 0xC0000008
+    case OBJECT_TYPE_MISMATCH           = 0xC0000024
+    case PORT_DISCONNECTED              = 0xC0000037
+    case INVALID_PORT_HANDLE            = 0xC0000042
+    case FILE_CLOSED                    = 0xC0000128
+    case HANDLE_NOT_CLOSABLE            = 0xC0000235
+    case SECTION_TOO_BIG                = 0xC0000040
+    case TOO_MANY_PAGING_FILES          = 0xC0000097
+    case INSUFF_SERVER_RESOURCES        = 0xC0000205
+    case OS2_INVALID_ACCESS             = 0x000C0001
+    case ACCESS_DENIED_2                = 0xC00000CA
+    case DATA_ERROR                     = 0xC000009C
+    case NOT_SAME_DEVICE                = 0xC00000D4
+    case NO_MORE_FILES                  = 0x80000006
+    case NO_MORE_ENTRIES                = 0x8000001A
+    case UNSUCCESSFUL                   = 0xC0000001
+    case SHARING_VIOLATION              = 0xC0000043
+    case FILE_LOCK_CONFLICT             = 0xC0000054
+    case LOCK_NOT_GRANTED               = 0xC0000055
+    case END_OF_FILE                    = 0xC0000011
+    case NOT_SUPPORTED                  = 0xC00000BB
+    case OBJECT_NAME_COLLISION          = 0xC0000035
+    case INVALID_PARAMETER              = 0xC000000D
+    case OS2_INVALID_LEVEL              = 0x007C0001
+    case OS2_NEGATIVE_SEEK              = 0x00830001
+    case RANGE_NOT_LOCKED               = 0xC000007E
+    case OS2_NO_MORE_SIDS               = 0x00710001
+    case OS2_CANCEL_VIOLATION           = 0x00AD0001
+    case OS2_ATOMIC_LOCKS_NOT_SUPPORTED = 0x00AE0001
+    case INVALID_INFO_CLASS             = 0xC0000003
+    case INVALID_PIPE_STATE             = 0xC00000AD
+    case INVALID_READ_MODE              = 0xC00000B4
+    case OS2_CANNOT_COPY                = 0x010A0001
+    case STOPPED_ON_SYMLINK             = 0x8000002D
+    case INSTANCE_NOT_AVAILABLE         = 0xC00000AB
+    case PIPE_NOT_AVAILABLE             = 0xC00000AC
+    case PIPE_BUSY                      = 0xC00000AE
+    case PIPE_CLOSING                   = 0xC00000B1
+    case PIPE_EMPTY                     = 0xC00000D9
+    case PIPE_DISCONNECTED              = 0xC00000B0
+    case BUFFER_OVERFLOW                = 0x80000005
+    case MORE_PROCESSING_REQUIRED       = 0xC0000016
+    case EA_TOO_LARGE                   = 0xC0000050
+    case OS2_EAS_DIDNT_FIT              = 0x01130001
+    case EAS_NOT_SUPPORTED              = 0xC000004F
+    case EA_LIST_INCONSISTENT           = 0x80000014
+    case OS2_EA_ACCESS_DENIED           = 0x03E20001
+    case NOTIFY_ENUM_DIR                = 0x0000010C
+    case INVALID_SMB                    = 0x00010002
+    case WRONG_PASSWORD                 = 0xC000006A
+    case PATH_NOT_COVERED               = 0xC0000257
+    case NETWORK_NAME_DELETED           = 0xC00000C9
+    case SMB_BAD_TID                    = 0x00050002
+    case BAD_NETWORK_NAME               = 0xC00000CC
+    case BAD_DEVICE_TYPE                = 0xC00000CB
+    case SMB_BAD_COMMAND                = 0x00160002
+    case PRINT_QUEUE_FULL               = 0xC00000C6
+    case NO_SPOOL_SPACE                 = 0xC00000C7
+    case PRINT_CANCELLED                = 0xC00000C8
+    case UNEXPECTED_NETWORK_ERROR       = 0xC00000C4
+    case IO_TIMEOUT                     = 0xC00000B5
+    case REQUEST_NOT_ACCEPTED           = 0xC00000D0
+    case TOO_MANY_SESSIONS              = 0xC00000CE
+    case SMB_BAD_UID                    = 0x005B0002
+    case SMB_USE_MPX                    = 0x00FA0002
+    case SMB_USE_STANDARD               = 0x00FB0002
+    case SMB_CONTINUE_MPX               = 0x00FC0002
+    case ACCOUNT_DISABLED               = 0xC0000072
+    case ACCOUNT_EXPIRED                = 0xC0000193
+    case INVALID_WORKSTATION            = 0xC0000070
+    case INVALID_LOGON_HOURS            = 0xC000006F
+    case PASSWORD_EXPIRED               = 0xC0000071
+    case PASSWORD_MUST_CHANGE           = 0xC0000224
+    case SMB_NO_SUPPORT                 = 0xFFFF0002
+    case MEDIA_WRITE_PROTECTED          = 0xC00000A2
+    case NO_MEDIA_IN_DEVICE             = 0xC0000013
+    case INVALID_DEVICE_STATE           = 0xC0000184
+    case DATA_ERROR_2                   = 0xC000003E
+    case CRC_ERROR                      = 0xC000003F
+    case DISK_CORRUPT_ERROR             = 0xC0000032
+    case NONEXISTENT_SECTOR             = 0xC0000015
+    case DEVICE_PAPER_EMPTY             = 0x8000000E
+    case WRONG_VOLUME                   = 0xC0000012
+    case DISK_FULL                      = 0xC000007F
+    case BUFFER_TOO_SMALL               = 0xC0000023
+    case BAD_IMPERSONATION_LEVEL        = 0xC00000A5
+    case USER_SESSION_DELETED           = 0xC0000203
+    case NETWORK_SESSION_EXPIRED        = 0xC000035C
+    case SMB_TOO_MANY_UIDS              = 0xC000205A
+    
+    var description: String {
+        switch self {
+        case NOT_IMPLEMENTED, INVALID_DEVICE_REQUEST, ILLEGAL_FUNCTION:
+            return "Invalid Function."
+        case NO_SUCH_FILE, NO_SUCH_DEVICE, OBJECT_NAME_NOT_FOUND:
+            return "File not found."
+        case OBJECT_PATH_INVALID, OBJECT_PATH_NOT_FOUND, OBJECT_PATH_SYNTAX_BAD, DFS_EXIT_PATH_FOUND, REDIRECTOR_NOT_STARTED:
+            return "A component in the path prefix is not a directory."
+        case TOO_MANY_OPENED_FILES:
+            return "Too many open files. No FIDs are available."
+        case ACCESS_DENIED, INVALID_LOCK_SEQUENCE, INVALID_VIEW_SIZE, ALREADY_COMMITTED, PORT_CONNECTION_REFUSED, THREAD_IS_TERMINATING, DELETE_PENDING, PRIVILEGE_NOT_HELD, LOGON_FAILURE, FILE_IS_A_DIRECTORY, FILE_RENAMED, PROCESS_IS_TERMINATING, CANNOT_DELETE, FILE_DELETED:
+            return "Access denied."
+        case SMB_BAD_FID, INVALID_HANDLE, OBJECT_TYPE_MISMATCH, PORT_DISCONNECTED, INVALID_PORT_HANDLE, FILE_CLOSED, HANDLE_NOT_CLOSABLE:
+            return "Invalid FID."
+        case SECTION_TOO_BIG, TOO_MANY_PAGING_FILES, INSUFF_SERVER_RESOURCES:
+            return "Insufficient server memory to perform the requested operation."
+        case OS2_INVALID_ACCESS:
+            return "Invalid open mode."
+        case DATA_ERROR:
+            return "Bad data. (May be generated by IOCTL calls on the server.)"
+        case DIRECTORY_NOT_EMPTY:
+            return "Remove of directory failed because it was not empty."
+        case NOT_SAME_DEVICE:
+            return "A file system operation (such as a rename) across two devices was attempted."
+        case NO_MORE_FILES:
+            return "No (more) files found following a file search command."
+        case UNSUCCESSFUL:
+            return "General error."
+        case SHARING_VIOLATION:
+            return "Sharing violation. A requested open mode conflicts with the sharing mode of an existing file handle."
+        case FILE_LOCK_CONFLICT, LOCK_NOT_GRANTED:
+            return "A lock request specified an invalid locking mode, or conflicted with an existing file lock."
+        case END_OF_FILE:
+            return "Attempted to read beyond the end of the file."
+        case NOT_SUPPORTED:
+            return "This command is not supported by the server."
+        case OBJECT_NAME_COLLISION:
+            return "An attempt to create a file or directory failed because an object with the same pathname already exists."
+        case INVALID_PARAMETER:
+            return "A parameter supplied with the message is invalid."
+        case OS2_INVALID_LEVEL:
+            return "Invalid information level."
+        case OS2_NEGATIVE_SEEK:
+            return "An attempt was made to seek to a negative absolute offset within a file."
+        case RANGE_NOT_LOCKED:
+            return "The byte range specified in an unlock request was not locked."
+        case OS2_NO_MORE_SIDS:
+            return "Maximum number of searches has been exhausted."
+        case OS2_CANCEL_VIOLATION:
+            return "No lock request was outstanding for the supplied cancel region."
+        case OS2_ATOMIC_LOCKS_NOT_SUPPORTED:
+            return "The file system does not support atomic changes to the lock type."
+        case INVALID_INFO_CLASS, INVALID_PIPE_STATE, INVALID_READ_MODE:
+            return "Invalid named pipe."
+        case OS2_CANNOT_COPY:
+            return "The copy functions cannot be used."
+        case INSTANCE_NOT_AVAILABLE, PIPE_NOT_AVAILABLE, PIPE_BUSY:
+            return "All instances of the designated named pipe are busy."
+        case PIPE_CLOSING, PIPE_EMPTY:
+            return "The designated named pipe is in the process of being closed."
+        case PIPE_DISCONNECTED:
+            return "The designated named pipe exists, but there is no server process listening on the server side."
+        case BUFFER_OVERFLOW, MORE_PROCESSING_REQUIRED:
+            return "There is more data available to read on the designated named pipe."
+        case EA_TOO_LARGE, OS2_EAS_DIDNT_FIT:
+            return "Either there are no extended attributes, or the available extended attributes did not fit into the response."
+        case EAS_NOT_SUPPORTED:
+            return "The server file system does not support Extended Attributes."
+        case OS2_EA_ACCESS_DENIED:
+            return "Access to the extended attribute was denied."
+        default:
+            return ""
+        }
+    }
+}

Sources/WebDAVFileProvider.swift

@@ -51,10 +51,10 @@ public final class WebDavFileObject: FileObject {
     let contentType: String
     let entryTag: String?
     
-    init(absoluteURL: NSURL, name: String, size: Int64, contentType: String, createdDate: NSDate?, modifiedDate: NSDate?, fileType: FileType, isHidden: Bool, isReadOnly: Bool, entryTag: String?) {
+    init(absoluteURL: NSURL, name: String, path: String, size: Int64, contentType: String, createdDate: NSDate?, modifiedDate: NSDate?, fileType: FileType, isHidden: Bool, isReadOnly: Bool, entryTag: String?) {
         self.contentType = contentType
         self.entryTag = entryTag
-        super.init(absoluteURL: absoluteURL, name: name, size: size, createdDate: createdDate, modifiedDate: modifiedDate, fileType: fileType, isHidden: isHidden, isReadOnly: isReadOnly)
+        super.init(absoluteURL: absoluteURL, name: name, path: path, size: size, createdDate: createdDate, modifiedDate: modifiedDate, fileType: fileType, isHidden: isHidden, isReadOnly: isReadOnly)
     }
 }
 
@@ -71,14 +71,14 @@ public class WebDAVFileProvider: NSObject,  FileProviderBasic {
             assert(_session == nil, "It's not effective to change dispatch_queue property after session is initialized.")
         }
     }
-    public var delegate: FileProviderDelegate?
+    public weak var delegate: FileProviderDelegate?
     public let credential: NSURLCredential?
     
     private var _session: NSURLSession?
     private var session: NSURLSession {
         if _session == nil {
             let queue = NSOperationQueue()
-            queue.underlyingQueue = dispatch_queue
+            //queue.underlyingQueue = dispatch_queue
             _session = NSURLSession(configuration: NSURLSessionConfiguration.defaultSessionConfiguration(), delegate: self, delegateQueue: queue)
         }
         return _session!
@@ -145,11 +145,12 @@ public class WebDAVFileProvider: NSObject,  FileProviderBasic {
         }
         task.resume()
     }
+    
+    public weak var fileOperationDelegate: FileOperationDelegate?
 }
 
 extension WebDAVFileProvider: FileProviderOperations {
     public func createFolder(folderName: String, atPath: String, completionHandler: SimpleCompletionHandler) {
-        let session = NSURLSession(configuration: NSURLSessionConfiguration.defaultSessionConfiguration())
         let url = absoluteURL((atPath as NSString).stringByAppendingPathComponent(folderName) + "/")
         let request = NSMutableURLRequest(URL: url)
         request.HTTPMethod = "MKCOL"
@@ -177,42 +178,21 @@ extension WebDAVFileProvider: FileProviderOperations {
     }
     
     public func moveItemAtPath(path: String, toPath: String, overwrite: Bool = false, completionHandler: SimpleCompletionHandler) {
-        let session = NSURLSession(configuration: NSURLSessionConfiguration.defaultSessionConfiguration())
-        let url = absoluteURL(path)
-        let request = NSMutableURLRequest(URL: url)
-        request.HTTPMethod = "MOVE"
-        request.setValue(baseURL?.absoluteString, forHTTPHeaderField: "Host")
-        request.setValue(absoluteURL(path).absoluteString, forHTTPHeaderField: "Destination")
-        if !overwrite {
-            request.setValue("F", forHTTPHeaderField: "Overwrite")
-        }
-        let task = session.dataTaskWithRequest(request) { (data, response, error) in
-            if let response = response as? NSHTTPURLResponse, let code = FileProviderWebDavErrorCode(rawValue: response.statusCode) {
-                defer {
-                    self.delegateNotify(.Move(source: path, destination: toPath), error: error)
-                }
-                if code == .MultiStatus, let data = data {
-                    let xresponses = self.parseXMLResponse(data)
-                    for xresponse in xresponses {
-                        if xresponse.status >= 300 {
-                            completionHandler?(error: FileProviderWebDavError(code: code, url: url))
-                        }
-                    }
-                } else {
-                    completionHandler?(error: FileProviderWebDavError(code: code, url: url))
-                }
-                return
-            }
-            completionHandler?(error: error)
-        }
-        task.resume()
+        self.copyMoveItemAtPath(true, path: path, toPath: toPath, overwrite: overwrite, completionHandler: completionHandler)
     }
     
     public func copyItemAtPath(path: String, toPath: String, overwrite: Bool = false, completionHandler: SimpleCompletionHandler) {
-        let session = NSURLSession(configuration: NSURLSessionConfiguration.defaultSessionConfiguration())
+        self.copyMoveItemAtPath(false, path: path, toPath: toPath, overwrite: overwrite, completionHandler: completionHandler)
+    }
+    
+    private func copyMoveItemAtPath(move:Bool, path: String, toPath: String, overwrite: Bool, completionHandler: SimpleCompletionHandler) {
         let url = absoluteURL(path)
         let request = NSMutableURLRequest(URL: url)
-        request.HTTPMethod = "COPY"
+        if move {
+            request.HTTPMethod = "MOVE"
+        } else {
+            request.HTTPMethod = "COPY"
+        }
         request.setValue(baseURL?.absoluteString, forHTTPHeaderField: "Host")
         request.setValue(absoluteURL(path).absoluteString, forHTTPHeaderField: "Destination")
         if !overwrite {
@@ -221,14 +201,13 @@ extension WebDAVFileProvider: FileProviderOperations {
         let task = session.dataTaskWithRequest(request) { (data, response, error) in
             if let response = response as? NSHTTPURLResponse, let code = FileProviderWebDavErrorCode(rawValue: response.statusCode) {
                 defer {
-                    self.delegateNotify(.Copy(source: path, destination: toPath), error: error)
+                    let op = move ? FileOperation.Move(source: path, destination: toPath) : .Copy(source: path, destination: toPath)
+                    self.delegateNotify(op, error: error)
                 }
                 if code == .MultiStatus, let data = data {
                     let xresponses = self.parseXMLResponse(data)
-                    for xresponse in xresponses {
-                        if xresponse.status >= 300 {
-                            completionHandler?(error: FileProviderWebDavError(code: code, url: url))
-                        }
+                    for xresponse in xresponses where xresponse.status >= 300 {
+                        completionHandler?(error: FileProviderWebDavError(code: code, url: url))
                     }
                 } else {
                     completionHandler?(error: FileProviderWebDavError(code: code, url: url))
@@ -241,7 +220,6 @@ extension WebDAVFileProvider: FileProviderOperations {
     }
     
     public func removeItemAtPath(path: String, completionHandler: SimpleCompletionHandler) {
-        let session = NSURLSession(configuration: NSURLSessionConfiguration.defaultSessionConfiguration())
         let url = absoluteURL(path)
         let request = NSMutableURLRequest(URL: url)
         request.HTTPMethod = "DELETE"
@@ -253,10 +231,8 @@ extension WebDAVFileProvider: FileProviderOperations {
                 }
                 if code == .MultiStatus, let data = data {
                     let xresponses = self.parseXMLResponse(data)
-                    for xresponse in xresponses {
-                        if xresponse.status >= 300 {
-                            completionHandler?(error: FileProviderWebDavError(code: code, url: url))
-                        }
+                    for xresponse in xresponses where xresponse.status >= 300 {
+                        completionHandler?(error: FileProviderWebDavError(code: code, url: url))
                     }
                 } else {
                     completionHandler?(error: FileProviderWebDavError(code: code, url: url))
@@ -299,19 +275,17 @@ extension WebDAVFileProvider: FileProviderOperations {
 
 extension WebDAVFileProvider: FileProviderReadWrite {
     public func contentsAtPath(path: String, completionHandler: ((contents: NSData?, error: ErrorType?) -> Void)) {
-        let request = NSMutableURLRequest(URL: absoluteURL(path))
-        request.HTTPMethod = "GET"
-        let task = session.dataTaskWithRequest(request) { (data, response, error) in
-            completionHandler(contents: data, error: error)
-        }
-        task.resume()
+        self.contentsAtPath(path, offset: 0, length: -1, completionHandler: completionHandler)
     }
     
     public func contentsAtPath(path: String, offset: Int64, length: Int, completionHandler: ((contents: NSData?, error: ErrorType?) -> Void)) {
-        let session = NSURLSession(configuration: NSURLSessionConfiguration.defaultSessionConfiguration())
         let request = NSMutableURLRequest(URL: absoluteURL(path))
         request.HTTPMethod = "GET"
-        request.setValue("bytes=\(offset)-\(offset + length)", forHTTPHeaderField: "Range")
+        if length > 0 {
+            request.setValue("bytes=\(offset)-\(offset + length)", forHTTPHeaderField: "Range")
+        } else if offset > 0 && length < 0 {
+            request.setValue("bytes=\(offset)-", forHTTPHeaderField: "Range")
+        }
         let task = session.dataTaskWithRequest(request) { (data, response, error) in
             completionHandler(contents: data, error: error)
         }
@@ -399,16 +373,12 @@ internal extension WebDAVFileProvider {
             let xml = try AEXMLDocument(xmlData: response)
             var rootnode = xml.root
             var responsetag = "response"
-            for node in rootnode.all ?? [] {
-                if node.name.lowercaseString.hasSuffix("multistatus") {
-                    rootnode = node
-                }
+            for node in rootnode.all ?? [] where node.name.lowercaseString.hasSuffix("multistatus") {
+                rootnode = node
             }
-            for node in rootnode.children ?? [] {
-                if node.name.lowercaseString.hasSuffix("response") {
-                    responsetag = node.name
-                    break
-                }
+            for node in rootnode.children ?? [] where node.name.lowercaseString.hasSuffix("response") {
+                responsetag = node.name
+                break
             }
             for responseNode in rootnode[responsetag].all ?? [] {
                 var hreftag = "href"
@@ -434,29 +404,23 @@ internal extension WebDAVFileProvider {
                     }
                     var propDic = [String: String]()
                     let propStatNode = responseNode[propstattag]
-                    for node in propStatNode.children ?? [] {
-                        if node.name.lowercaseString.hasSuffix("status") {
-                            statustag = node.name
-                            break
-                        }
+                    for node in propStatNode.children ?? [] where node.name.lowercaseString.hasSuffix("status"){
+                        statustag = node.name
+                        break
                     }
                     let statusDesc2 = (propStatNode[statustag].stringValue).componentsSeparatedByString(" ")
                     if statusDesc2.count > 2 {
                         status = Int(statusDesc2[1])
                     }
                     var proptag = "prop"
-                    for tnode in propStatNode.children ?? [] {
-                        if tnode.name.lowercaseString.hasSuffix("prop") {
-                            proptag = tnode.name
-                        }
+                    for tnode in propStatNode.children ?? [] where tnode.name.lowercaseString.hasSuffix("prop") {
+                        proptag = tnode.name
                         break
                     }
                     for propItemNode in propStatNode[proptag].children ?? [] {
                         propDic[propItemNode.name.componentsSeparatedByString(":").last!.lowercaseString] = propItemNode.value
-                        if propItemNode.name.hasSuffix("resourcetype") {
-                            if propItemNode.xmlStringCompact.containsString("collection") {
-                                propDic["getcontenttype"] = "httpd/unix-directory"
-                            }
+                        if propItemNode.name.hasSuffix("resourcetype") && propItemNode.xmlStringCompact.containsString("collection") {
+                             propDic["getcontenttype"] = "httpd/unix-directory"
                         }
                     }
                     result.append(DavResponse(href: hrefURL, hrefString: href, status: status, prop: propDic))
@@ -474,12 +438,12 @@ internal extension WebDAVFileProvider {
         }
         let name = davResponse.prop["displayname"] ?? (davResponse.hrefString.stringByRemovingPercentEncoding! as NSString).lastPathComponent
         let size = Int64(davResponse.prop["getcontentlength"] ?? "-1") ?? NSURLSessionTransferSizeUnknown
-        let createdDate = self.resolveRFCDate(davResponse.prop["creationdate"] ?? "")
-        let modifiedDate = self.resolveRFCDate(davResponse.prop["getlastmodified"] ?? "")
+        let createdDate = self.resolveDate(davResponse.prop["creationdate"] ?? "")
+        let modifiedDate = self.resolveDate(davResponse.prop["getlastmodified"] ?? "")
         let contentType = davResponse.prop["getcontenttype"] ?? "octet/stream"
         let isDirectory = contentType == "httpd/unix-directory"
         let entryTag = davResponse.prop["getetag"]
-        return WebDavFileObject(absoluteURL: href, name: name, size: size, contentType: contentType, createdDate: createdDate, modifiedDate: modifiedDate, fileType: isDirectory ? .Directory : .Regular, isHidden: false, isReadOnly: false, entryTag: entryTag)
+        return WebDavFileObject(absoluteURL: href, name: name, path: href.path ?? name, size: size, contentType: contentType, createdDate: createdDate, modifiedDate: modifiedDate, fileType: isDirectory ? .Directory : .Regular, isHidden: false, isReadOnly: false, entryTag: entryTag)
     }
     
     private func delegateNotify(operation: FileOperation, error: ErrorType?) {