Amir Abbas Mousavian
163a218ac2
- Now also compatible with background session - added delegate notify (success, progress, failure) to FTP - added `FTPFileProvider.useAppleImplementation`, allows developer choose to use apple download task instead of custom implementation - enabling to download non-text files in FTP - implementation of `url(of:) in FTP - various fixes in error reporting - disabled closing streams in ftpQuit() due to crash
475 lines
23 KiB
Swift
475 lines
23 KiB
Swift
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//
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// OneDriveFileProvider.swift
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// FileProvider
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//
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// Created by Amir Abbas Mousavian.
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// Copyright © 2017 Mousavian. Distributed under MIT license.
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//
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import Foundation
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import CoreGraphics
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/**
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Allows accessing to OneDrive stored files, either hosted on Microsoft servers or business coprporate one.
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This provider doesn't cache or save files internally, however you can set `useCache` and `cache` properties
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to use Foundation `NSURLCache` system.
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- Note: Uploading files and data are limited to 100MB, for now.
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*/
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open class OneDriveFileProvider: FileProviderBasicRemote {
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open class var type: String { return "OneDrive" }
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open let baseURL: URL?
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/// Drive name for user, default is `root`. Changing its value will effect on new operations.
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open var drive: String
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/// Generated storage url from server url and drive name
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open var currentPath: String
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open var dispatch_queue: DispatchQueue
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open var operation_queue: OperationQueue {
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willSet {
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assert(_session == nil, "It's not effective to change dispatch_queue property after session is initialized.")
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}
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}
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open weak var delegate: FileProviderDelegate?
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open var credential: URLCredential?
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open private(set) var cache: URLCache?
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public var useCache: Bool
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public var validatingCache: Bool
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fileprivate var _session: URLSession?
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fileprivate var sessionDelegate: SessionDelegate?
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public var session: URLSession {
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if _session == nil {
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self.sessionDelegate = SessionDelegate(fileProvider: self, credential: credential)
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let queue = OperationQueue()
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//queue.underlyingQueue = dispatch_queue
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let config = URLSessionConfiguration.default
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config.urlCache = cache
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config.requestCachePolicy = .returnCacheDataElseLoad
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_session = URLSession(configuration: config, delegate: sessionDelegate as URLSessionDelegate?, delegateQueue: queue)
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}
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return _session!
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}
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/**
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Initializer for Onedrive provider with given client ID and Token.
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These parameters must be retrieved via [Authentication for the OneDrive API](https://dev.onedrive.com/auth/readme.htm).
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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.
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The latter is easier to use and prefered. Also you can use [auth0/Lock](https://github.com/auth0/Lock.iOS-OSX) which provides graphical user interface.
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- Parameters:
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- credential: a `URLCredential` object with Client ID set as `user` and Token set as `password`.
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- serverURL: server url, Set it if you are trying to connect OneDrive Business server, otherwise leave it
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`nil` to connect to OneDrive Personal uses.
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- drive: drive name for user on server, default value is `root`.
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- cache: A URLCache to cache downloaded files and contents.
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*/
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public init(credential: URLCredential?, serverURL: URL? = nil, drive: String = "root", cache: URLCache? = nil) {
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let baseURL = serverURL?.absoluteURL ?? URL(string: "https://api.onedrive.com/")!
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self.baseURL = baseURL.path.hasSuffix("/") ? baseURL : baseURL.appendingPathComponent("")
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self.drive = drive
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self.currentPath = ""
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self.useCache = false
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self.validatingCache = true
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self.cache = cache
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self.credential = credential
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dispatch_queue = DispatchQueue(label: "FileProvider.\(type(of: self).type)", attributes: .concurrent)
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operation_queue = OperationQueue()
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operation_queue.name = "FileProvider.\(type(of: self).type).Operation"
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}
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public required convenience init?(coder aDecoder: NSCoder) {
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self.init(credential: aDecoder.decodeObject(forKey: "credential") as? URLCredential,
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serverURL: aDecoder.decodeObject(forKey: "baseURL") as? URL,
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drive: aDecoder.decodeObject(forKey: "drive") as? String ?? "root")
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self.currentPath = aDecoder.decodeObject(forKey: "currentPath") as? String ?? ""
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self.useCache = aDecoder.decodeBool(forKey: "useCache")
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self.validatingCache = aDecoder.decodeBool(forKey: "validatingCache")
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}
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open func encode(with aCoder: NSCoder) {
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aCoder.encode(self.credential, forKey: "credential")
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aCoder.encode(self.baseURL, forKey: "baseURL")
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aCoder.encode(self.drive, forKey: "drive")
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aCoder.encode(self.currentPath, forKey: "currentPath")
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aCoder.encode(self.useCache, forKey: "useCache")
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aCoder.encode(self.validatingCache, forKey: "validatingCache")
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}
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public static var supportsSecureCoding: Bool {
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return true
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}
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open func copy(with zone: NSZone? = nil) -> Any {
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let copy = OneDriveFileProvider(credential: self.credential, serverURL: self.baseURL, drive: self.drive, cache: self.cache)
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copy.currentPath = self.currentPath
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copy.delegate = self.delegate
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copy.fileOperationDelegate = self.fileOperationDelegate
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copy.useCache = self.useCache
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copy.validatingCache = self.validatingCache
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return copy
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}
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deinit {
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if fileProviderCancelTasksOnInvalidating {
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_session?.invalidateAndCancel()
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} else {
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_session?.finishTasksAndInvalidate()
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}
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}
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open func contentsOfDirectory(path: String, completionHandler: @escaping ((_ contents: [FileObject], _ error: Error?) -> Void)) {
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list(path) { (contents, cursor, error) in
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completionHandler(contents, error)
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}
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}
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open func attributesOfItem(path: String, completionHandler: @escaping ((_ attributes: FileObject?, _ error: Error?) -> Void)) {
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var request = URLRequest(url: url(of: path))
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request.httpMethod = "GET"
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request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
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let task = session.dataTask(with: request, completionHandler: { (data, response, error) in
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var serverError: FileProviderOneDriveError?
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var fileObject: OneDriveFileObject?
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if let response = response as? HTTPURLResponse {
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let code = FileProviderHTTPErrorCode(rawValue: response.statusCode)
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serverError = code != nil ? FileProviderOneDriveError(code: code!, path: path, errorDescription: String(data: data ?? Data(), encoding: .utf8)) : nil
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if let json = data?.deserializeJSON(), let file = OneDriveFileObject(baseURL: self.baseURL, drive: self.drive, json: json) {
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fileObject = file
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}
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}
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completionHandler(fileObject, serverError ?? error)
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})
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task.resume()
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}
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open func storageProperties(completionHandler: @escaping ((_ total: Int64, _ used: Int64) -> Void)) {
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var request = URLRequest(url: url())
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request.httpMethod = "GET"
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request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
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let task = session.dataTask(with: request, completionHandler: { (data, response, error) in
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var totalSize: Int64 = -1
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var usedSize: Int64 = 0
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if let json = data?.deserializeJSON() {
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totalSize = (json["total"] as? NSNumber)?.int64Value ?? -1
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usedSize = (json["used"] as? NSNumber)?.int64Value ?? 0
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}
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completionHandler(totalSize, usedSize)
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})
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task.resume()
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}
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open func searchFiles(path: String, recursive: Bool, query: NSPredicate, foundItemHandler: ((FileObject) -> Void)?, completionHandler: @escaping ((_ files: [FileObject], _ error: Error?) -> Void)) {
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var foundFiles = [OneDriveFileObject]()
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var queryStr: String?
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queryStr = query.findValue(forKey: "name") as? String ?? query.findAllValues(forKey: nil).flatMap { $0.value as? String }.first
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guard let finalQueryStr = queryStr else { return }
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search(path, query: finalQueryStr, foundItem: { (file) in
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if query.evaluate(with: file.mapPredicate()) {
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foundFiles.append(file)
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foundItemHandler?(file)
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}
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}, completionHandler: { (error) in
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completionHandler(foundFiles, error)
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})
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}
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open func url(of path: String? = nil, modifier: String? = nil) -> URL {
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var rpath: String
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if let path = path {
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rpath = path
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} else {
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rpath = self.currentPath
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}
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if rpath.hasPrefix("/") {
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rpath.remove(at: rpath.startIndex)
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}
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if rpath.isEmpty {
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if let modifier = modifier {
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return baseURL!.appendingPathComponent("drive/\(drive)/\(modifier)")
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}
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return baseURL!.appendingPathComponent("drive/\(drive)")
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}
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let driveURL = baseURL!.appendingPathComponent("drive/\(drive):/")
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rpath = (rpath.addingPercentEncoding(withAllowedCharacters: .urlPathAllowed) ?? rpath)
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rpath = rpath.trimmingCharacters(in: pathTrimSet)
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if let modifier = modifier {
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rpath = rpath + ":/" + modifier
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}
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return URL(string: rpath, relativeTo: driveURL) ?? driveURL
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}
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open func isReachable(completionHandler: @escaping (Bool) -> Void) {
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var request = URLRequest(url: url())
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request.httpMethod = "HEAD"
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request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
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let task = session.dataTask(with: request, completionHandler: { (data, response, error) in
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let status = (response as? HTTPURLResponse)?.statusCode ?? 400
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completionHandler(status == 200)
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})
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task.resume()
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}
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open weak var fileOperationDelegate: FileOperationDelegate?
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}
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extension OneDriveFileProvider: FileProviderOperations {
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open func create(folder folderName: String, at atPath: String, completionHandler: SimpleCompletionHandler) -> OperationHandle? {
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let path = (atPath as NSString).appendingPathComponent(folderName) + "/"
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return doOperation(.create(path: path), completionHandler: completionHandler)
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}
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open func moveItem(path: String, to toPath: String, overwrite: Bool, completionHandler: SimpleCompletionHandler) -> OperationHandle? {
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return doOperation(.move(source: path, destination: toPath), completionHandler: completionHandler)
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}
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open func copyItem(path: String, to toPath: String, overwrite: Bool, completionHandler: SimpleCompletionHandler) -> OperationHandle? {
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return doOperation(.copy(source: path, destination: toPath), completionHandler: completionHandler)
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}
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open func removeItem(path: String, completionHandler: SimpleCompletionHandler) -> OperationHandle? {
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return doOperation(.remove(path: path), completionHandler: completionHandler)
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}
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fileprivate func doOperation(_ operation: FileOperationType, completionHandler: SimpleCompletionHandler) -> OperationHandle? {
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guard fileOperationDelegate?.fileProvider(self, shouldDoOperation: operation) ?? true == true else {
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return nil
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}
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guard let sourcePath = operation.source else { return nil }
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let destPath = operation.destination
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var request = URLRequest(url: url(of: sourcePath))
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switch operation {
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case .create:
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request.httpMethod = "CREATE"
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case .copy:
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request.httpMethod = "POST"
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case .move:
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request.httpMethod = "PATCH"
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case .remove:
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request.httpMethod = "DELETE"
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default: // modify, link, fetch
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return nil
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}
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request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
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var requestDictionary = [String: AnyObject]()
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if let dest = correctPath(destPath) as NSString? {
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request.setValue("application/json", forHTTPHeaderField: "Content-Type")
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requestDictionary["parentReference"] = ("/drive/\(drive):" + dest.deletingLastPathComponent) as NSString
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requestDictionary["name"] = dest.lastPathComponent as NSString
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request.httpBody = Data(jsonDictionary: requestDictionary)
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}
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let task = session.dataTask(with: request, completionHandler: { (data, response, error) in
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var serverError: FileProviderOneDriveError?
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if let response = response as? HTTPURLResponse, response.statusCode >= 300, let code = FileProviderHTTPErrorCode(rawValue: response.statusCode) {
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serverError = FileProviderOneDriveError(code: code, path: sourcePath, errorDescription: String(data: data ?? Data(), encoding: .utf8))
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}
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completionHandler?(serverError ?? error)
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self.delegateNotify(operation, error: serverError ?? error)
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})
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task.taskDescription = operation.json
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task.resume()
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return RemoteOperationHandle(operationType: operation, tasks: [task])
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}
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open func copyItem(localFile: URL, to toPath: String, overwrite: Bool, completionHandler: SimpleCompletionHandler) -> OperationHandle? {
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let opType = FileOperationType.copy(source: localFile.absoluteString, destination: toPath)
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guard fileOperationDelegate?.fileProvider(self, shouldDoOperation: opType) ?? true == true else {
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return nil
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}
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return upload_simple(toPath, localFile: localFile, overwrite: overwrite, operation: opType, completionHandler: completionHandler)
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}
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open func copyItem(path: String, toLocalURL destURL: URL, completionHandler: SimpleCompletionHandler) -> OperationHandle? {
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let opType = FileOperationType.copy(source: path, destination: destURL.absoluteString)
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guard fileOperationDelegate?.fileProvider(self, shouldDoOperation: opType) ?? true == true else {
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return nil
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}
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var request = URLRequest(url: self.url(of: path, modifier: "content"))
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request.httpMethod = "GET"
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request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
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let task = session.downloadTask(with: request)
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completionHandlersForTasks[task.taskIdentifier] = completionHandler
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downloadCompletionHandlersForTasks[task.taskIdentifier] = { tempURL in
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guard let httpResponse = task.response as? HTTPURLResponse , httpResponse.statusCode < 300 else {
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let code = FileProviderHTTPErrorCode(rawValue: (task.response as? HTTPURLResponse)?.statusCode ?? -1)
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let errorData : Data? = nil //Data(contentsOf: cacheURL) // TODO: Figure out how to get error response data for the error description
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let serverError : FileProviderOneDriveError? = code != nil ? FileProviderOneDriveError(code: code!, path: path, errorDescription: String(data: errorData ?? Data(), encoding: .utf8)) : nil
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completionHandler?(serverError)
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return
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}
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do {
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try FileManager.default.moveItem(at: tempURL, to: destURL)
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completionHandler?(nil)
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} catch let e {
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completionHandler?(e)
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}
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}
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task.taskDescription = opType.json
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task.resume()
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return RemoteOperationHandle(operationType: opType, tasks: [task])
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}
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}
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extension OneDriveFileProvider: FileProviderReadWrite {
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open func contents(path: String, offset: Int64, length: Int, completionHandler: @escaping ((_ contents: Data?, _ error: Error?) -> Void)) -> OperationHandle? {
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if length == 0 || offset < 0 {
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dispatch_queue.async {
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completionHandler(Data(), nil)
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}
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return nil
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}
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let opType = FileOperationType.fetch(path: path)
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var request = URLRequest(url: self.url(of: path, modifier: "content"))
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request.httpMethod = "GET"
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request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
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if length > 0 {
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request.setValue("bytes=\(offset)-\(offset + Int64(length) - 1)", forHTTPHeaderField: "Range")
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} else if offset > 0 && length < 0 {
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request.setValue("bytes=\(offset)-", forHTTPHeaderField: "Range")
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}
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let task = session.dataTask(with: request, completionHandler: { (data, response, error) in
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var serverError: FileProviderOneDriveError?
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if let httpResponse = response as? HTTPURLResponse , httpResponse.statusCode >= 300, let code = FileProviderHTTPErrorCode(rawValue: httpResponse.statusCode) {
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serverError = FileProviderOneDriveError(code: code, path: path, errorDescription: String(data: data ?? Data(), encoding: .utf8))
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}
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let filedata = serverError ?? error == nil ? data : nil
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completionHandler(filedata, serverError ?? error)
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})
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task.taskDescription = opType.json
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task.resume()
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return RemoteOperationHandle(operationType: opType, tasks: [task])
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}
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open func writeContents(path: String, contents data: Data?, atomically: Bool, overwrite: Bool, completionHandler: SimpleCompletionHandler) -> OperationHandle? {
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let opType = FileOperationType.modify(path: path)
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guard fileOperationDelegate?.fileProvider(self, shouldDoOperation: opType) ?? true == true else {
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return nil
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}
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// FIXME: remove 150MB restriction
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return upload_simple(path, data: data ?? Data(), overwrite: overwrite, operation: opType, completionHandler: completionHandler)
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}
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fileprivate func registerNotifcation(path: String, eventHandler: (() -> Void)) {
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/* There is two ways to monitor folders changing in OneDrive. Either using webooks
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* which means you have to implement a server to translate it to push notifications
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* or using apiv2 list_folder/longpoll method. The second one is implemeted here.
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* Tough webhooks are much more efficient, longpoll is much simpler to implement!
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* You can implemnt your own webhook service and replace this method accordingly.
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*/
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NotImplemented()
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}
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fileprivate func unregisterNotifcation(path: String) {
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NotImplemented()
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}
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/**
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Genrates a public url to a file to be shared with other users and can be downloaded without authentication.
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- Parameters:
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- to: path of file, including file/directory name.
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- completionHandler: a closure with result of directory entries or error.
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`link`: a url returned by OneDrive to share.
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`attribute`: `nil` for OneDrive.
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`expiration`: `nil` for OneDrive, as it doesn't expires.
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`error`: Error returned by OneDrive.
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*/
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open func publicLink(to path: String, completionHandler: @escaping ((_ link: URL?, _ attribute: OneDriveFileObject?, _ expiration: Date?, _ error: Error?) -> Void)) {
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var request = URLRequest(url: self.url(of: path, modifier: "action.createLink"))
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request.httpMethod = "POST"
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let requestDictionary: [String: AnyObject] = ["type": "view" as NSString]
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request.httpBody = Data(jsonDictionary: requestDictionary)
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let task = session.dataTask(with: request, completionHandler: { (data, response, error) in
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var serverError: FileProviderOneDriveError?
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var link: URL?
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if let response = response as? HTTPURLResponse {
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let code = FileProviderHTTPErrorCode(rawValue: response.statusCode)
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serverError = code != nil ? FileProviderOneDriveError(code: code!, path: path, errorDescription: String(data: data ?? Data(), encoding: .utf8)) : nil
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if let json = data?.deserializeJSON() {
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if let linkDic = json["link"] as? NSDictionary, let linkStr = linkDic["webUrl"] as? String {
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link = URL(string: linkStr)
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}
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}
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}
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completionHandler(link, nil, nil, serverError ?? error)
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})
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task.resume()
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}
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}
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extension OneDriveFileProvider: ExtendedFileProvider {
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open func thumbnailOfFileSupported(path: String) -> Bool {
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return true
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}
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open func propertiesOfFileSupported(path: String) -> Bool {
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let fileExt = (path as NSString).pathExtension.lowercased()
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switch fileExt {
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case "jpg", "jpeg", "bmp", "gif", "png", "tif", "tiff":
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return true
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case "mp3", "aac", "m4a", "wma":
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return true
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case "mp4", "mpg", "3gp", "mov", "avi", "wmv":
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return true
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default:
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return false
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}
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}
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open func thumbnailOfFile(path: String, dimension: CGSize?, completionHandler: @escaping ((_ image: ImageClass?, _ error: Error?) -> Void)) {
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let url: URL
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if let dimension = dimension {
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url = self.url(of: path, modifier: "thumbnails/0/=c\(dimension.width)x\(dimension.height)/content")
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} else {
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url = self.url(of: path, modifier: "thumbnails/0/small/content")
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}
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|
|
|
var request = URLRequest(url: url)
|
|
request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
|
|
let task = self.session.dataTask(with: request, completionHandler: { (data, response, error) in
|
|
var image: ImageClass? = nil
|
|
if let code = (response as? HTTPURLResponse)?.statusCode , code >= 300, let rCode = FileProviderHTTPErrorCode(rawValue: code) {
|
|
let responseError = FileProviderOneDriveError(code: rCode, path: path, errorDescription: String(data: data ?? Data(), encoding: .utf8))
|
|
completionHandler(nil, responseError)
|
|
return
|
|
}
|
|
if let data = data {
|
|
image = ImageClass(data: data)
|
|
}
|
|
completionHandler(image, error)
|
|
})
|
|
task.resume()
|
|
}
|
|
|
|
open func propertiesOfFile(path: String, completionHandler: @escaping ((_ propertiesDictionary: [String : Any], _ keys: [String], _ error: Error?) -> Void)) {
|
|
var request = URLRequest(url: url(of: path))
|
|
request.httpMethod = "GET"
|
|
request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
|
|
let task = session.dataTask(with: request, completionHandler: { (data, response, error) in
|
|
var serverError: FileProviderOneDriveError?
|
|
var dic = [String: Any]()
|
|
var keys = [String]()
|
|
if let response = response as? HTTPURLResponse {
|
|
let code = FileProviderHTTPErrorCode(rawValue: response.statusCode)
|
|
serverError = code != nil ? FileProviderOneDriveError(code: code!, path: path, errorDescription: String(data: data ?? Data(), encoding: .utf8)) : nil
|
|
if let json = data?.deserializeJSON() {
|
|
(dic, keys) = self.mapMediaInfo(json)
|
|
}
|
|
}
|
|
completionHandler(dic, keys, serverError ?? error)
|
|
})
|
|
task.resume()
|
|
}
|
|
}
|
|
|
|
extension OneDriveFileProvider: FileProvider { }
|