Debrid: Add TorBox support

TorBox is a service that handles magnet links under both a free
and paid plan. Integrate support into Ferrite. Will add rich services
once the instantAvailability endpoint returns a file list.

Signed-off-by: kingbri <bdashore3@proton.me>

Ferrite/API/TorBoxWrapper.swift

@@ -0,0 +1,275 @@
+//
+//  TorBoxWrapper.swift
+//  Ferrite
+//
+//  Created by Brian Dashore on 6/11/24.
+//
+
+import Foundation
+
+// Torrents: /torrents/mylist
+// IA: /torrents/checkcached
+// Add Magnet: /torrents/createtorrent
+// Delete torrent: /torrents/controltorrent
+// Unrestrict: /torrents/requestdl
+
+class TorBox: DebridSource, ObservableObject {
+    var id: String = "TorBox"
+    var abbreviation: String = "TB"
+    var website: String = "https://torbox.app"
+
+    @Published var authProcessing: Bool = false
+    var isLoggedIn: Bool {
+        return getToken() != nil
+    }
+
+    var manualToken: String? {
+        if UserDefaults.standard.bool(forKey: "TorBox.UseManualKey") {
+            return getToken()
+        } else {
+            return nil
+        }
+    }
+
+    @Published var IAValues: [DebridIA] = []
+    @Published var cloudDownloads: [DebridCloudDownload] = []
+    @Published var cloudTorrents: [DebridCloudTorrent] = []
+    var cloudTTL: Double = 0.0
+
+    private let baseApiUrl = "https://api.torbox.app/v1/api"
+    private let jsonDecoder = JSONDecoder()
+    private let jsonEncoder = JSONEncoder()
+
+    // MARK: - Auth
+
+    func setApiKey(_ key: String) {
+        FerriteKeychain.shared.set(key, forKey: "TorBox.ApiKey")
+        UserDefaults.standard.set(true, forKey: "TorBox.UseManualKey")
+    }
+
+    func logout() async {
+        FerriteKeychain.shared.delete("TorBox.ApiKey")
+        UserDefaults.standard.removeObject(forKey: "TorBox.UseManualKey")
+    }
+
+    private func getToken() -> String? {
+        FerriteKeychain.shared.get("TorBox.ApiKey")
+    }
+
+    // MARK: - Common request
+
+    // Wrapper request function which matches the responses and returns data
+    @discardableResult private func performRequest(request: inout URLRequest, requestName: String) async throws -> Data {
+        guard let token = getToken() else {
+            throw DebridError.InvalidToken
+        }
+
+        request.setValue("Bearer \(token)", forHTTPHeaderField: "Authorization")
+
+        let (data, response) = try await URLSession.shared.data(for: request)
+
+        guard let response = response as? HTTPURLResponse else {
+            throw DebridError.FailedRequest(description: "No HTTP response given")
+        }
+
+        if response.statusCode >= 200, response.statusCode <= 299 {
+            return data
+        } else if response.statusCode == 401 {
+            throw DebridError.FailedRequest(description: "The request \(requestName) failed because you were unauthorized. Please relogin to TorBox in Settings.")
+        } else {
+            throw DebridError.FailedRequest(description: "The request \(requestName) failed with status code \(response.statusCode).")
+        }
+    }
+
+    // MARK: - Instant availability
+
+    func instantAvailability(magnets: [Magnet]) async throws {
+        let now = Date().timeIntervalSince1970
+
+        let sendMagnets = magnets.filter { magnet in
+            if let IAIndex = IAValues.firstIndex(where: { $0.magnet.hash == magnet.hash }) {
+                if now > IAValues[IAIndex].expiryTimeStamp {
+                    IAValues.remove(at: IAIndex)
+                    return true
+                } else {
+                    return false
+                }
+            } else {
+                return true
+            }
+        }
+
+        if sendMagnets.isEmpty {
+            return
+        }
+
+        var components = URLComponents(string: "\(baseApiUrl)/torrents/checkcached")!
+        components.queryItems = sendMagnets.map { URLQueryItem(name: "hash", value: $0.hash) }
+        components.queryItems?.append(URLQueryItem(name: "format", value: "list"))
+
+        guard let url = components.url else {
+            throw DebridError.InvalidUrl
+        }
+
+        var request = URLRequest(url: url)
+
+        let data = try await performRequest(request: &request, requestName: #function)
+        let rawResponse = try jsonDecoder.decode(TBResponse<InstantAvailabilityData>.self, from: data)
+
+        // If the data is a failure, return
+        guard case .links(let iaObjects) = rawResponse.data else {
+            return
+        }
+
+        let availableHashes = iaObjects.map {
+            DebridIA(
+                magnet: Magnet(hash: $0.hash, link: nil),
+                source: self.id,
+                expiryTimeStamp: Date().timeIntervalSince1970 + 300,
+                files: []
+            )
+        }
+
+        IAValues += availableHashes
+    }
+
+    // MARK: - Downloading
+
+    func getRestrictedFile(magnet: Magnet, ia: DebridIA?, iaFile: DebridIAFile?) async throws -> (restrictedFile: DebridIAFile?, newIA: DebridIA?) {
+        let torrentId = try await createTorrent(magnet: magnet)
+        let torrentList = try await myTorrentList()
+        guard let filteredTorrent = torrentList.first(where: { $0.id == torrentId }) else {
+            throw DebridError.FailedRequest(description: "A torrent wasn't found. Are you sure it's cached?")
+        }
+
+        // If the torrent isn't saved, it's considered as caching
+        guard filteredTorrent.downloadState == "cached" || filteredTorrent.downloadState == "completed" else {
+            throw DebridError.IsCaching
+        }
+
+        if filteredTorrent.files.count > 1 {
+            var copiedIA = ia
+
+            copiedIA?.files = filteredTorrent.files.map { torrentFile in
+                DebridIAFile(
+                    fileId: torrentFile.id,
+                    name: torrentFile.shortName,
+                    streamUrlString: String(torrentId)
+                )
+            }
+
+            return (nil, copiedIA)
+        } else if let torrentFile = filteredTorrent.files.first {
+            let restrictedFile = DebridIAFile(fileId: torrentFile.id, name: torrentFile.name, streamUrlString: String(torrentId))
+
+            return (restrictedFile, nil)
+        } else {
+            return (nil, nil)
+        }
+    }
+
+    private func createTorrent(magnet: Magnet) async throws -> Int {
+        var request = URLRequest(url: URL(string: "\(baseApiUrl)/torrents/createtorrent")!)
+        request.httpMethod = "POST"
+
+        guard let magnetLink = magnet.link else {
+            throw DebridError.EmptyData
+        }
+
+        let formData = FormDataBody(params: ["magnet": magnetLink])
+        request.setValue("multipart/form-data; boundary=\(formData.boundary)", forHTTPHeaderField: "Content-Type")
+        request.httpBody = formData.body
+
+        let data = try await performRequest(request: &request, requestName: #function)
+        let rawResponse = try jsonDecoder.decode(TBResponse<CreateTorrentResponse>.self, from: data)
+
+        guard let torrentId = rawResponse.data?.torrentId else {
+            throw DebridError.EmptyData
+        }
+
+        return torrentId
+    }
+
+    private func myTorrentList() async throws -> [MyTorrentListResponse] {
+        var request = URLRequest(url: URL(string: "\(baseApiUrl)/torrents/mylist")!)
+
+        let data = try await performRequest(request: &request, requestName: #function)
+        let rawResponse = try jsonDecoder.decode(TBResponse<[MyTorrentListResponse]>.self, from: data)
+
+        guard let torrentList = rawResponse.data else {
+            throw DebridError.EmptyData
+        }
+
+        return torrentList
+    }
+
+    func unrestrictFile(_ restrictedFile: DebridIAFile) async throws -> String {
+        var components = URLComponents(string: "\(baseApiUrl)/torrents/requestdl")!
+        components.queryItems = [
+            URLQueryItem(name: "token", value: getToken()),
+            URLQueryItem(name: "torrent_id", value: restrictedFile.streamUrlString),
+            URLQueryItem(name: "file_id", value: String(restrictedFile.fileId))
+        ]
+
+        guard let url = components.url else {
+            throw DebridError.InvalidUrl
+        }
+
+        var request = URLRequest(url: url)
+
+        let data = try await performRequest(request: &request, requestName: #function)
+        let rawResponse = try jsonDecoder.decode(TBResponse<RequestDLResponse>.self, from: data)
+
+        guard let unrestrictedLink = rawResponse.data else {
+            throw DebridError.FailedRequest(description: "Could not get an unrestricted URL from TorBox.")
+        }
+
+        return unrestrictedLink
+    }
+
+    // MARK: - Cloud methods
+
+    // Unused
+    func getUserDownloads() async throws {
+        return
+    }
+    
+    func checkUserDownloads(link: String) async throws -> String? {
+        return nil
+    }
+    
+    func deleteDownload(downloadId: String) async throws {
+        return
+    }
+    
+    func getUserTorrents() async throws {
+        let torrentList = try await myTorrentList()
+        cloudTorrents = torrentList.map { torrent in
+
+            // Only need one link to force a green badge
+            DebridCloudTorrent(
+                torrentId: String(torrent.id),
+                source: self.id,
+                fileName: torrent.name,
+                status: torrent.downloadState == "cached" || torrent.downloadState == "completed" ? "downloaded" : torrent.downloadState,
+                hash: torrent.hash,
+                links: [String(torrent.id)]
+            )
+        }
+    }
+
+    func deleteTorrent(torrentId: String?) async throws {
+        guard let torrentId else {
+            throw DebridError.InvalidPostBody
+        }
+
+        var request = URLRequest(url: URL(string: "\(baseApiUrl)/torrents/controltorrent")!)
+        request.httpMethod = "POST"
+        request.setValue("application/json", forHTTPHeaderField: "Content-Type")
+
+        let body = ControlTorrentRequest(torrentId: torrentId, operation: "Delete")
+        request.httpBody = try jsonEncoder.encode(body)
+
+        try await performRequest(request: &request, requestName: "controltorrent")
+    }
+}

Ferrite/Models/TorBoxModels.swift

@@ -0,0 +1,103 @@
+//
+//  TorBoxModels.swift
+//  Ferrite
+//
+//  Created by Brian Dashore on 6/11/24.
+//
+
+import Foundation
+
+extension TorBox {
+    struct TBResponse<TBData: Codable>: Codable {
+        let success: Bool
+        let detail: String
+        let data: TBData?
+    }
+
+    // MARK: - InstantAvailability
+    enum InstantAvailabilityData: Codable {
+        case links([InstantAvailabilityDataObject])
+        case failure(InstantAvailabilityDataFailure)
+
+        init(from decoder: Decoder) throws {
+            let container = try decoder.singleValueContainer()
+
+            // Only continue if the data is a List which indicates a success
+            if let linkArray = try? container.decode([InstantAvailabilityDataObject].self) {
+                self = .links(linkArray)
+            } else {
+                let value = try container.decode(InstantAvailabilityDataFailure.self)
+                self = .failure(value)
+            }
+        }
+
+        func encode(to encoder: Encoder) throws {
+            var container = encoder.singleValueContainer()
+            switch self {
+            case .links(let array):
+                try container.encode(array)
+            case .failure(let value):
+                try container.encode(value)
+            }
+        }
+    }
+
+    struct InstantAvailabilityDataObject: Codable, Sendable {
+        let name: String
+        let size: Int
+        let hash: String
+    }
+
+    struct InstantAvailabilityDataFailure: Codable, Sendable {
+        let data: Bool
+    }
+
+    struct CreateTorrentResponse: Codable, Sendable {
+        let hash: String
+        let torrentId: Int
+        let authId: String
+
+        enum CodingKeys: String, CodingKey {
+            case hash
+            case torrentId = "torrent_id"
+            case authId = "auth_id"
+        }
+    }
+
+    struct MyTorrentListResponse: Codable, Sendable {
+        let id: Int
+        let hash: String
+        let name: String
+        let downloadState: String
+        let files: [MyTorrentListFile]
+
+        enum CodingKeys: String, CodingKey {
+            case id, hash, name, files
+            case downloadState = "download_state"
+        }
+    }
+
+    struct MyTorrentListFile: Codable, Sendable {
+        let id: Int
+        let hash: String
+        let name: String
+        let shortName: String
+
+        enum CodingKeys: String, CodingKey {
+            case id, hash, name
+            case shortName = "short_name"
+        }
+    }
+
+    typealias RequestDLResponse = String
+
+    struct ControlTorrentRequest: Codable, Sendable {
+        let torrentId: String
+        let operation: String
+
+        enum CodingKeys: String, CodingKey {
+            case operation
+            case torrentId = "torrent_id"
+        }
+    }
+}

Ferrite/Utils/FormDataBody.swift

@@ -0,0 +1,27 @@
+//
+//  MultipartFormDataRequest.swift
+//  Ferrite
+//
+//  Created by Brian Dashore on 6/12/24.
+//
+
+import Foundation
+
+struct FormDataBody {
+    let boundary: String = UUID().uuidString
+    let body: Data
+
+    init(params: [String: String]) {
+        var body = Data()
+
+        for (key, value) in params {
+            body.append("--\(boundary)\r\n".data(using: .utf8)!)
+            body.append("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n".data(using: .utf8)!)
+            body.append("\(value)\r\n".data(using: .utf8)!)
+        }
+
+        body.append("--\(boundary)--\r\n".data(using: .utf8)!)
+
+        self.body = body
+    }
+}