Amir Abbas
223 lines
11 KiB
Swift
223 lines
11 KiB
Swift
//
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// DropboxHelper.swift
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// FileProvider
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//
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// Created by Amir Abbas Mousavian on 5/18/95.
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//
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//
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import Foundation
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public struct FileProviderDropboxError: Error, CustomStringConvertible {
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public let code: FileProviderHTTPErrorCode
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public let path: String
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public let errorDescription: String?
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public var description: String {
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return code.description
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}
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}
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public final class DropboxFileObject: FileObject {
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internal init(name: String, path: String) {
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super.init(absoluteURL: URL(string: path), name: name, path: path)
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}
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open internal(set) var serverTime: Date? {
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get {
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return allValues["NSURLServerDateKey"] as? Date
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}
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set {
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allValues["NSURLServerDateKey"] = newValue
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}
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}
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open internal(set) var id: String? {
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get {
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return allValues["NSURLDropboxDocumentIdentifyKey"] as? String
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}
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set {
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allValues["NSURLDropboxDocumentIdentifyKey"] = newValue
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}
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}
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open internal(set) var rev: String? {
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get {
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return allValues[URLResourceKey.generationIdentifierKey.rawValue] as? String
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}
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set {
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allValues[URLResourceKey.generationIdentifierKey.rawValue] = newValue
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}
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}
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}
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// codebeat:disable[ARITY]
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internal extension DropboxFileProvider {
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func list(_ path: String, cursor: String? = nil, prevContents: [DropboxFileObject] = [], recursive: Bool = false, completionHandler: @escaping ((_ contents: [FileObject], _ cursor: String?, _ error: Error?) -> Void)) {
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var requestDictionary = [String: AnyObject]()
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let url: URL
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if let cursor = cursor {
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url = URL(string: "https://api.dropboxapi.com/2/files/list_folder/continue")!
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requestDictionary["cursor"] = cursor as NSString?
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} else {
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url = URL(string: "https://api.dropboxapi.com/2/files/list_folder")!
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requestDictionary["path"] = correctPath(path) as NSString?
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requestDictionary["recursive"] = recursive as NSNumber?
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}
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var request = URLRequest(url: url)
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request.httpMethod = "POST"
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request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
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request.setValue("application/json", forHTTPHeaderField: "Content-Type")
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request.httpBody = dictionaryToJSON(requestDictionary)?.data(using: .utf8)
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let task = session.dataTask(with: request, completionHandler: { (data, response, error) in
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var responseError: FileProviderDropboxError?
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var files = prevContents
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if let code = (response as? HTTPURLResponse)?.statusCode , code >= 300, let rCode = FileProviderHTTPErrorCode(rawValue: code) {
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responseError = FileProviderDropboxError(code: rCode, path: path, errorDescription: String(data: data ?? Data(), encoding: .utf8))
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}
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if let data = data, let jsonStr = String(data: data, encoding: .utf8) {
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let json = jsonToDictionary(jsonStr)
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if let entries = json?["entries"] as? [AnyObject] , entries.count > 0 {
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for entry in entries {
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if let entry = entry as? [String: AnyObject], let file = self.mapToFileObject(entry) {
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files.append(file)
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}
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}
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let ncursor = json?["cursor"] as? String
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let hasmore = (json?["has_more"] as? NSNumber)?.boolValue ?? false
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if hasmore {
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self.list(path, cursor: ncursor, prevContents: files, completionHandler: completionHandler)
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return
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}
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}
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}
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completionHandler(files, nil, responseError ?? error)
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})
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task.taskDescription = FileOperationType.fetch(path: path).json
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task.resume()
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}
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func upload_simple(_ targetPath: String, data: Data, modifiedDate: Date = Date(), overwrite: Bool, operation: FileOperationType, completionHandler: SimpleCompletionHandler) -> OperationHandle? {
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assert(data.count < 150*1024*1024, "Maximum size of allowed size to upload is 150MB")
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var requestDictionary = [String: Any]()
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let url: URL
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url = URL(string: "https://content.dropboxapi.com/2/files/upload")!
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requestDictionary["path"] = correctPath(targetPath) as NSString?
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requestDictionary["mode"] = (overwrite ? "overwrite" : "add") as NSString
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requestDictionary["client_modified"] = string(from:modifiedDate)
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var request = URLRequest(url: url)
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request.httpMethod = "POST"
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request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
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request.setValue("application/octet-stream", forHTTPHeaderField: "Content-Type")
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request.setValue(dictionaryToJSON(requestDictionary as [String : AnyObject]), forHTTPHeaderField: "Dropbox-API-Arg")
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request.httpBody = data
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let task = session.uploadTask(with: request, from: data, completionHandler: { (data, response, error) in
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var responseError: FileProviderDropboxError?
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if let code = (response as? HTTPURLResponse)?.statusCode , code >= 300, let rCode = FileProviderHTTPErrorCode(rawValue: code) {
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responseError = FileProviderDropboxError(code: rCode, path: targetPath, errorDescription: String(data: data ?? Data(), encoding: .utf8))
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}
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completionHandler?(responseError ?? error)
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self.delegateNotify(.create(path: targetPath), error: responseError ?? 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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func upload_simple(_ targetPath: String, localFile: URL, modifiedDate: Date = Date(), overwrite: Bool, operation: FileOperationType, completionHandler: SimpleCompletionHandler) -> OperationHandle? {
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var requestDictionary = [String: Any]()
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let url: URL
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url = URL(string: "https://content.dropboxapi.com/2/files/upload")!
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requestDictionary["path"] = correctPath(targetPath) as NSString?
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requestDictionary["mode"] = (overwrite ? "overwrite" : "add") as NSString
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requestDictionary["client_modified"] = string(from:modifiedDate)
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var request = URLRequest(url: url)
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request.httpMethod = "POST"
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request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
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request.setValue("application/octet-stream", forHTTPHeaderField: "Content-Type")
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request.setValue(dictionaryToJSON(requestDictionary as [String : AnyObject]), forHTTPHeaderField: "Dropbox-API-Arg")
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let task = session.uploadTask(with: request, fromFile: localFile, completionHandler: { (data, response, error) in
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var responseError: FileProviderDropboxError?
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if let code = (response as? HTTPURLResponse)?.statusCode , code >= 300, let rCode = FileProviderHTTPErrorCode(rawValue: code) {
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responseError = FileProviderDropboxError(code: rCode, path: targetPath, errorDescription: String(data: data ?? Data(), encoding: .utf8))
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}
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completionHandler?(responseError ?? error)
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self.delegateNotify(.create(path: targetPath), error: responseError ?? 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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func search(_ startPath: String = "", query: String, start: Int = 0, maxResultPerPage: Int = 25, maxResults: Int = -1, foundItem:@escaping ((_ file: DropboxFileObject) -> Void), completionHandler: @escaping ((_ error: Error?) -> Void)) {
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let url = URL(string: "https://api.dropboxapi.com/2/files/search")!
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var request = URLRequest(url: url)
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request.httpMethod = "POST"
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request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
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request.setValue("application/json", forHTTPHeaderField: "Content-Type")
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var requestDictionary: [String: AnyObject] = ["path": startPath as NSString]
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requestDictionary["query"] = query as NSString
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requestDictionary["start"] = start as NSNumber
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requestDictionary["max_results"] = maxResultPerPage as NSNumber
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request.httpBody = dictionaryToJSON(requestDictionary)?.data(using: .utf8)
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let task = session.dataTask(with: request, completionHandler: { (data, response, error) in
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var responseError: FileProviderDropboxError?
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if let code = (response as? HTTPURLResponse)?.statusCode , code >= 300, let rCode = FileProviderHTTPErrorCode(rawValue: code) {
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responseError = FileProviderDropboxError(code: rCode, path: startPath, errorDescription: String(data: data ?? Data(), encoding: .utf8))
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}
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if let data = data, let jsonStr = String(data: data, encoding: .utf8) {
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let json = jsonToDictionary(jsonStr)
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if let entries = json?["matches"] as? [AnyObject] , entries.count > 0 {
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for entry in entries {
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if let entry = entry as? [String: AnyObject], let file = self.mapToFileObject(entry) {
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foundItem(file)
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}
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}
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let rstart = json?["start"] as? Int
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let hasmore = (json?["more"] as? NSNumber)?.boolValue ?? false
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if hasmore, let rstart = rstart {
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self.search(startPath, query: query, start: rstart + entries.count, maxResultPerPage: maxResultPerPage, foundItem: foundItem, completionHandler: completionHandler)
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} else {
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completionHandler(responseError ?? error)
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}
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return
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}
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}
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completionHandler(responseError ?? error)
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})
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task.resume()
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}
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}
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// codebeat:enable[ARITY]
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internal extension DropboxFileProvider {
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func mapToFileObject(_ jsonStr: String) -> DropboxFileObject? {
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guard let json = jsonToDictionary(jsonStr) else { return nil }
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return self.mapToFileObject(json)
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}
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func mapToFileObject(_ json: [String: AnyObject]) -> DropboxFileObject? {
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guard let name = json["name"] as? String else { return nil }
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guard let path = json["path_display"] as? String else { return nil }
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let fileObject = DropboxFileObject(name: name, path: path)
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fileObject.size = (json["size"] as? NSNumber)?.int64Value ?? -1
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fileObject.serverTime = resolve(dateString: json["server_modified"] as? String ?? "")
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fileObject.modifiedDate = resolve(dateString: json["client_modified"] as? String ?? "")
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fileObject.type = (json[".tag"] as? String) == "folder" ? .directory : .regular
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fileObject.isReadOnly = (json["sharing_info"]?["read_only"] as? NSNumber)?.boolValue ?? false
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fileObject.id = json["id"] as? String
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fileObject.rev = json["id"] as? String
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return fileObject
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}
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func delegateNotify(_ operation: FileOperationType, error: Error?) {
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DispatchQueue.main.async(execute: {
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if error == nil {
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self.delegate?.fileproviderSucceed(self, operation: operation)
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} else {
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self.delegate?.fileproviderFailed(self, operation: operation)
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}
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})
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}
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}
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