Files
Commilitia-Drop/ios/CDrop/Sources/Engine/EngineController.swift
T
admin a2cad11224 后台/会话三诉求:子会话(一台设备一会话)+ 离线消息队列 + 被登出推送 + 后台唤醒层
- Req 1 子会话(iOS 多进程在用户视角=一台设备一会话,内部多条独立刷新逻辑会话):brokerclient 加 MintParams.Sub + SessionInfo.Sub + RevokeDeviceSessions(user,meta) 级联;device-session sub!="" 挂在主 device_id 之下、走 tier=clipboard 且不建第二个 device 行;handleSessionsList 按 meta 归并、隐藏 sub!=""(但保留“仅控件会话存活”的设备,不简单丢弃);revokeDevice 改走 meta 级联(移除设备连带吊控件子会话)。iOS provisionWidgetSessionIfNeeded 改用主 device_id + sub="widget"(弃用独立 dev_widget),控件令牌仍隔离持有、独立刷新——不碰引擎主会话,#7 隔离不变。蓝本 auth/docs/子会话方案.md(cdrop 提案 + Broker 评审接受 + cdrop 确认 6 点:用 sub、R1 cdrop 归并、scope 复用 tier=clipboard、级联 DELETE …?meta=)。
- Req 2a 离线消息队列:新增 pending_messages 表(0001_init + sqlc 查询);message.go 收件设备离线即入队(无论是否配推送都入队,恒 202),修“离线消息只随推送横幅一闪、不入收件列表”;GET /api/messages/pending 取即删(DELETE..RETURNING,单次投递);web hub.ts onOpen 每次 SSE 连接 / 重连即拉取补收、逐条 addMessage(全端受益,iOS 经桥推原生 + 累积未读);复用 login-request reaper 清 TTL。
- Req 3 被登出推送:push 加 KindSessionRevoked + 本地化文案,apns/web 双通道;revokeDevice 加 notifyRevoked 参(跨端 revoke=true、自登出=false),跨端移除时推送告知被踢设备;iOS AppDelegate 收 session:revoked 即清 Keychain 主会话 + 控件会话、发 .cdropSessionRevoked,前台经 AppRoot 即时回登录页、关闭态下次启动即登出。
- #6 后台唤醒层:apns apsEnvelope 加 content-available:1(服务端有消息时既弹可点横幅又短暂后台唤醒);iOS DeviceItem 加 Codable、presence 快照持久化(冷启即时显示设备列表,缓解“长时间重连”观感,SSE 一连即整组替换自校正);控件会话回前台补铸(scenePhase active)+ content-available 唤醒时刷新隔离的控件会话(剪贴板保活,绝不碰引擎主会话以免 #7 回归)。
- 测试:qr_test mock broker 加 sub 幂等键 + 级联吊销端点;bootstrap_test 期望表集加 pending_messages。
2026-06-27 17:42:53 +08:00

1024 lines
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Swift
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import Foundation
import Observation
import UIKit
import WebKit
// presence web store DeviceInfolastSeen ms epoch
// Decodable JS WKWebView bool NSNumber
// / JSONDecoder
// web hub.ts handlePresence
struct DeviceItem: Identifiable, Equatable, Codable
{
// deviceID broker meta / /
// name deviceID presence name
let deviceID: String
let name: String
let type: String
let online: Bool
let lastSeen: Double
var id: String { deviceID.isEmpty ? name : deviceID }
}
// web store MessageRecord RecordsStore
// app
struct MessageItem: Identifiable, Equatable, Codable
{
let id: String
let direction: String // incoming | outgoing
let peerName: String
let text: String
let sentAt: Double
}
// web engine/main.ts toWire ice*
// P2P TURN
struct TransferItem: Identifiable, Equatable, Codable
{
let sessionId: String
let direction: String
let fileName: String
let fileSize: Int
let state: String
let mode: String?
let peerName: String
let phase: String?
let bytesTransferred: Int?
let bytesPerSec: Double?
let iceConn: String?
let iceLocal: String?
let iceRemote: String?
var id: String { sessionId }
}
// #2 / /
// / deviceActionStatus / clipboardStatus
struct Notice: Identifiable, Equatable
{
enum Kind: Equatable { case success, error, info }
let id = UUID()
let kind: Kind
let text: String
}
// #3installLogBridge console.warn/error
// N lastEngineLogat
struct LogEntry: Identifiable, Equatable
{
let id = UUID()
let level: String // warn | error | info
let message: String
let at: Date
}
// #8/link?r=&c=
// / requestId / code
struct LoginRequestItem: Identifiable, Equatable
{
let requestId: String
let code: String
let deviceName: String
let deviceType: String
let requestIp: String
var id: String { requestId }
}
// JS web/src/net/ios.tsios/PLAN.md §2
// "cdropEngine" WKScriptMessageHandler { id, method, payload }RPC
// { notify, payload }RPC evaluateJavaScript
// window.__cdropEngineResolve(id, ok, value) window.__cdropEngineEvent
@MainActor
@Observable
final class EngineController: NSObject
{
// SwiftUI
var status: String = t("ios.engine.disconnected")
var deviceName: String = ""
// UI demo
var devices: [DeviceItem] = [] // 线 / 线 presence presence
var transfers: [TransferItem] = [] // transfers
var history: [TransferItem] = [] // transferDone 30
var messages: [MessageItem] = [] // message
// SSE / + presence +
// warn/error 401
var hubConnected = false
var hubReconnecting = false
var presenceCount = 0
var lastEngineLog = ""
// #3log logsCap N
var logs: [LogEntry] = []
private static let logsCap = 300
// #2
var notices: [Notice] = []
// #8 / /
var pendingLoginRequest: LoginRequestItem?
// #5 / tab activeTab
// 使seenIncomingTransfers
//
var unreadMessages = 0
var unreadTransfers = 0
var activeTab = "transfer"
private var seenIncomingTransfers: Set<String> = []
// JS "ready" APNs
// didRegister ready flushPushRegistration
private var engineReady = false
// WebRTC origin PLAN R-iOS-3线
// https CDROP_ENGINE_URL http://localhostlocalhost
// WebRTC Windows loopback
private var engineURL: URL
{
if let s = ProcessInfo.processInfo.environment["CDROP_ENGINE_URL"], let u = URL(string: s)
{
return u
}
return URL(string: "https://drop.commilitia.net/engine.html")!
}
// boot EngineWebView.makeUIView boot #11
var auth: AuthManager?
// idbroker metapresence PATCH
// /api/devices/{device_id}
var selfDeviceID: String { auth?.session?.deviceId ?? "" }
private var webView: WKWebView?
private let downloads = DownloadManager()
// id URL cdrop-file://<id>
// WKURLSchemeHandler
private var outgoing: [String: URL] = [:]
// /
private static let historyCap = 50
private static let messagesCap = 200
override init()
{
super.init()
PushRegistry.shared.engine = self
// /
history = RecordsStore.load([TransferItem].self, "history") ?? []
messages = RecordsStore.load([MessageItem].self, "messages") ?? []
// presence / SSE
// SSE presence 线
devices = RecordsStore.load([DeviceItem].self, "devices") ?? []
}
// makeWebView WebView __CDROP_BOOT__device_type:"ios"
// cdrop-file scheme JS
func makeWebView() -> WKWebView
{
if let existing = webView { return existing }
let ucc = WKUserContentController()
ucc.add(self, name: "cdropEngine")
// boot nulldevice_type ios
// api_base /api prod URL
let debug = ProcessInfo.processInfo.environment["CDROP_DEBUG_SESSION"] == "1"
let boot = "window.__CDROP_BOOT__ = { session: \(sessionJSON()), "
+ "device_name: \(jsString(currentDeviceName())), "
+ "api_base: \(jsString(apiBaseForBoot())), device_type: \"ios\", debug: \(debug) };"
ucc.addUserScript(WKUserScript(source: boot,
injectionTime: .atDocumentStart,
forMainFrameOnly: true))
let cfg = WKWebViewConfiguration()
cfg.userContentController = ucc
cfg.setURLSchemeHandler(self, forURLScheme: "cdrop-file")
// Auth Broker refresh_tokenPOST /api/auth/refresh
// broker cdrop_session cookie URLSession cookie WebView
let wv = WKWebView(frame: .zero, configuration: cfg)
// engine.html WebView
// / handler engine.html
// bundle
var request = URLRequest(url: engineURL)
request.cachePolicy = .reloadIgnoringLocalCacheData
wv.load(request)
webView = wv
deviceName = currentDeviceName()
//
PushRegistry.shared.requestAuthorizationAndRegister()
// #5使 WKWebView WebRTC host
LocalNetworkPermission.trigger()
return wv
}
// SSE WebView UI makeWebView
// boot auth.session
func reset()
{
sendCommand("shutdown", payload: [:])
webView = nil
engineReady = false
devices = []
transfers = []
history = []
messages = []
// / / / /
notices = []
logs = []
unreadMessages = 0
unreadTransfers = 0
seenIncomingTransfers = []
activeTab = "transfer"
pendingLoginRequest = nil
//
RecordsStore.clear("history")
RecordsStore.clear("messages")
RecordsStore.clear("devices")
status = t("ios.engine.disconnected")
deviceName = ""
PushRegistry.shared.reset()
WidgetSessionStore.clear()
// L1访 + outgoing访 /
for (_, url) in outgoing { url.stopAccessingSecurityScopedResource() }
outgoing.removeAll()
// L2 id
CDropAPI.clearWidgetDeviceID()
}
// D/
func deleteTransferRecord(_ sessionId: String)
{
history.removeAll { $0.sessionId == sessionId }
RecordsStore.save(history, "history")
}
func clearHistory()
{
history.removeAll()
RecordsStore.clear("history")
}
// H/
func deleteMessage(_ id: String)
{
messages.removeAll { $0.id == id }
RecordsStore.save(messages, "messages")
}
func clearMessages()
{
messages.removeAll()
RecordsStore.clear("messages")
}
// ---- #2 ----
// notify 4s
//
func notify(_ text: String, kind: Notice.Kind)
{
guard !text.isEmpty else { return }
let notice = Notice(kind: kind, text: text)
notices.insert(notice, at: 0)
Task
{
try? await Task.sleep(for: .seconds(4))
dismissNotice(notice.id)
}
}
func dismissNotice(_ id: UUID)
{
notices.removeAll { $0.id == id }
}
// ---- #5 ----
// setActiveTab
func setActiveTab(_ tab: String)
{
activeTab = tab
if tab == "messages" { unreadMessages = 0 }
if tab == "transfer" { unreadTransfers = 0 }
}
// noteIncomingTransfer sessionId
//
private func noteIncomingTransfer(_ item: TransferItem)
{
guard item.direction == "incoming", !seenIncomingTransfers.contains(item.sessionId) else { return }
seenIncomingTransfers.insert(item.sessionId)
if activeTab != "transfer" { unreadTransfers += 1 }
}
// ---- #3 ----
func clearLogs()
{
logs.removeAll()
}
// Documents Files app /
func receivedFiles() -> [URL] { downloads.receivedFiles() }
func deleteReceivedFile(_ url: URL) { downloads.deleteReceivedFile(url) }
//
// name (1)退
func receivedFile(matching name: String) -> URL?
{
let files = downloads.receivedFiles()
if let exact = files.first(where: { $0.lastPathComponent == name }) { return exact }
let base = (name as NSString).deletingPathExtension
return files.first { $0.lastPathComponent.hasPrefix(base) }
}
// 线 /
func sendableDevices() -> [DeviceItem]
{
return devices.filter { $0.online && $0.name != deviceName }
}
// UIPasteboard
func uploadClipboard()
{
let content = UIPasteboard.general.string ?? ""
guard !content.isEmpty else { notify(t("ios.clipboard.empty"), kind: .info); return }
sendCommand("clipboardUpload", payload: [ "content": content ])
}
// UIPasteboard handleNotify "clipboard"
func pullClipboard()
{
sendCommand("clipboardPull", payload: [:])
}
// / device_idDELETE /api/devices/{device_id}
// #2
func revokeDevice(_ deviceID: String)
{
sendCommand("revokeDevice", payload: [ "device_id": deviceID ])
}
// ---- #8 ----
// /link?r=&c=qrRequest
// requestId / code
func fetchLoginRequest(requestId: String, code: String)
{
sendCommand("fetchLoginRequest", payload: [ "request_id": requestId, "code": code ])
}
// full访 Web/PWA
func approveLogin()
{
guard let req = pendingLoginRequest else { return }
pendingLoginRequest = nil
sendCommand("approveLogin", payload: [ "request_id": req.requestId, "code": req.code ])
}
func denyLogin()
{
guard let req = pendingLoginRequest else { return }
pendingLoginRequest = nil
sendCommand("denyLogin", payload: [ "request_id": req.requestId, "code": req.code ])
}
func cancelLoginRequest()
{
pendingLoginRequest = nil
}
// O CANCELLED transfers / transferDone
func cancelTransfer(_ sessionId: String)
{
sendCommand("cancelTransfer", payload: [ "sessionId": sessionId ])
}
// O ICE relay /
func switchToRelay(_ sessionId: String)
{
sendCommand("switchToRelay", payload: [ "sessionId": sessionId ])
}
// { to=, text } POST /api/message
// store.addMessage message outgoing
func sendMessage(to peerName: String, text: String)
{
let trimmed = text.trimmingCharacters(in: .whitespacesAndNewlines)
guard !trimmed.isEmpty, !peerName.isEmpty else { return }
sendCommand("sendMessage", payload: [ "to": peerName, "text": trimmed ])
}
// { device_id=, name } PATCH /api/devices/
// {device_id} token "renamed"
// + Keychain handleNotify device_id
func renameSelf(to name: String)
{
let id = selfDeviceID
let trimmed = name.trimmingCharacters(in: .whitespacesAndNewlines)
guard !id.isEmpty, !trimmed.isEmpty else { return }
sendCommand("renameSelf", payload: [ "device_id": id, "name": trimmed ])
}
// APNs PushRegistry.didRegisterready
// + /api/push/apns/register token
func flushPushRegistration()
{
guard engineReady, let token = PushRegistry.shared.deviceTokenHex else { return }
sendCommand("registerPush", payload: [ "token": token, "locale": I18n.locale ])
}
// App Group device_id +
// <> ·
func provisionWidgetSessionIfNeeded()
{
guard engineReady, WidgetSessionStore.load() == nil else { return }
// meta = device_id+ sub="widget" +
// tier=clipboard dev_widget device_id
// ClipboardClient#7
let id = selfDeviceID
guard !id.isEmpty else { return }
sendCommand("provisionWidgetSession", payload: [
"device_id": id,
"device_name": currentDeviceName(),
"sub": "widget",
])
}
// JSwindow.__cdropEngineEvent
func sendCommand(_ name: String, payload: [String: Any])
{
guard let json = jsonString(payload) else { return }
webView?.evaluateJavaScript("window.__cdropEngineEvent(\(jsString(name)), \(json));")
}
// sendFile cdrop-file://<id> +
func sendFile(to target: String, fileURL: URL)
{
let ref = stageOutgoingFile(fileURL)
var size = 0
if let attrs = try? FileManager.default.attributesOfItem(atPath: fileURL.path),
let n = attrs[.size] as? Int { size = n }
sendCommand("sendFile", payload: [
"target": target,
"url": ref,
"name": fileURL.lastPathComponent,
"size": size,
])
}
// Share Extension App Group cdrop://share
//
var pendingShareFiles: [URL] = []
// pendingShareFiles
func loadPendingShares()
{
AppGroup.pruneStale()
pendingShareFiles = AppGroup.inboxFiles()
}
// App Group move app
// 便 loadPendingShares /
// M1
func sendShares(to device: String)
{
for url in pendingShareFiles
{
if let staged = moveShareToPrivate(url) { sendFile(to: device, fileURL: staged) }
AppGroup.removeStaged(url)
}
pendingShareFiles = []
}
// app
private func moveShareToPrivate(_ url: URL) -> URL?
{
let dir = FileManager.default.temporaryDirectory
.appendingPathComponent("ShareOutbox/\(UUID().uuidString)", isDirectory: true)
try? FileManager.default.createDirectory(at: dir, withIntermediateDirectories: true)
let dest = dir.appendingPathComponent(url.lastPathComponent)
do { try FileManager.default.moveItem(at: url, to: dest); return dest }
catch { return nil }
}
// +
func dismissShares()
{
for url in pendingShareFiles { AppGroup.removeStaged(url) }
pendingShareFiles = []
}
// #14PhotosPicker PhotosPickerItem loadTransferable
// cdrop-file scheme Range
// URL temporaryDirectory nil
func stagePhotoData(_ data: Data, suggestedName: String) -> URL?
{
let dir = FileManager.default.temporaryDirectory
.appendingPathComponent("PhotoOutbox/\(UUID().uuidString)", isDirectory: true)
try? FileManager.default.createDirectory(at: dir, withIntermediateDirectories: true)
let name = suggestedName.isEmpty ? "photo.jpg" : suggestedName
let dest = dir.appendingPathComponent(name)
do { try data.write(to: dest); return dest }
catch { return nil }
}
// cdrop-file://<id> URL
// start...Access
private func stageOutgoingFile(_ url: URL) -> String
{
let id = UUID().uuidString
_ = url.startAccessingSecurityScopedResource()
outgoing[id] = url
return "cdrop-file://\(id)"
}
// [start,end) seek base64 bridgeFileSource
// url cdrop-file://<id>id stageOutgoingFile /
fileprivate func readOutgoingSlice(url: String, start: Int, end: Int) throws -> String
{
guard let id = URL(string: url)?.host, let fileURL = outgoing[id]
else
{
throw NSError(domain: "cdrop.engine", code: 404,
userInfo: [NSLocalizedDescriptionKey: "no staged file: \(url)"])
}
let handle = try FileHandle(forReadingFrom: fileURL)
defer { try? handle.close() }
try handle.seek(toOffset: UInt64(max(0, start)))
let count = max(0, end - start)
let data = (try handle.read(upToCount: count)) ?? Data()
return data.base64EncodedString()
}
}
// MARK: - JS RPC +
extension EngineController: WKScriptMessageHandler
{
func userContentController(_ uc: WKUserContentController, didReceive message: WKScriptMessage)
{
guard let body = message.body as? [String: Any] else { return }
if let id = body["id"] as? Int
{
handleRPC(id: id,
method: body["method"] as? String ?? "",
payload: body["payload"] as? [String: Any] ?? [:])
return
}
if let notify = body["notify"] as? String
{
handleNotify(notify, payload: body["payload"])
}
}
private func handleRPC(id: Int, method: String, payload: [String: Any])
{
do
{
switch method
{
case "saveDownload":
let name = payload["name"] as? String ?? "download"
let path = try downloads.saveWhole(name: name, data: decodeBase64(payload["data"]))
resolve(id: id, ok: true, value: path)
case "beginDownload":
try downloads.begin(sessionId: payload["sessionId"] as? String ?? "")
resolve(id: id, ok: true, value: nil)
case "appendDownload":
try downloads.append(sessionId: payload["sessionId"] as? String ?? "",
data: decodeBase64(payload["data"]))
resolve(id: id, ok: true, value: nil)
case "finalizeDownload":
let path = try downloads.finalize(sessionId: payload["sessionId"] as? String ?? "",
name: payload["name"] as? String ?? "download")
resolve(id: id, ok: true, value: path)
case "abortDownload":
downloads.abort(sessionId: payload["sessionId"] as? String ?? "")
resolve(id: id, ok: true, value: nil)
case "readFileSlice":
// seek [start,end) base64 bridgeFileSource
let b64 = try readOutgoingSlice(url: payload["url"] as? String ?? "",
start: Self.intOf(payload["start"]),
end: Self.intOf(payload["end"]))
resolve(id: id, ok: true, value: b64)
default:
resolve(id: id, ok: false, value: "unknown method: \(method)")
}
}
catch
{
resolve(id: id, ok: false, value: "\(error)")
}
}
private func handleNotify(_ name: String, payload: Any?)
{
switch name
{
case "ready":
status = t("ios.engine.ready")
engineReady = true
flushPushRegistration()
provisionWidgetSessionIfNeeded()
case "probe":
// WebRTC-in-WKWebView arch A R-iOS-3
if let p = payload as? [String: Any]
{
let secure = (p["secure"] as? Bool) ?? false
let rtc = (p["rtc"] as? String) ?? "?"
let host = (p["host"] as? Int) ?? 0
let srflx = (p["srflx"] as? Int) ?? 0
status = "安全:\(secure) RTC:\(rtc) host:\(host) srflx:\(srflx)"
}
case "presence":
// JS NSArray`as? [[String: Any]]`
// Foundation 便 [Any]
// as? [String: Any]
if let p = payload as? [String: Any], let raw = p["devices"] as? [Any]
{
devices = raw.compactMap { ($0 as? [String: Any]).flatMap(Self.parseDevice) }
RecordsStore.save(devices, "devices") // presence
}
case "transfers":
if let p = payload as? [String: Any], let raw = p["active"] as? [Any]
{
transfers = raw.compactMap { ($0 as? [String: Any]).flatMap(Self.parseTransfer) }
for item in transfers { noteIncomingTransfer(item) } // #5
syncBackgroundTask()
}
case "message":
// + + +
//
if let p = payload as? [String: Any],
let m = p["message"] as? [String: Any],
let item = Self.parseMessage(m)
{
let isNew = !messages.contains { $0.id == item.id }
messages.removeAll { $0.id == item.id }
messages.insert(item, at: 0)
if messages.count > Self.messagesCap
{
messages.removeLast(messages.count - Self.messagesCap)
}
RecordsStore.save(messages, "messages")
// #5outgoing
if isNew, item.direction == "incoming", activeTab != "messages" { unreadMessages += 1 }
}
case "transferDone":
// sessionId
if let p = payload as? [String: Any], let item = Self.parseTransfer(p)
{
noteIncomingTransfer(item) // #5 seen
transfers.removeAll { $0.sessionId == item.sessionId }
history.removeAll { $0.sessionId == item.sessionId }
history.insert(item, at: 0)
if history.count > Self.historyCap { history.removeLast(history.count - Self.historyCap) }
syncBackgroundTask()
RecordsStore.save(history, "history") //
}
case "sendStarted":
// transfers
break
case "hubState":
if let p = payload as? [String: Any]
{
hubConnected = Self.boolOf(p["connected"])
hubReconnecting = Self.boolOf(p["reconnecting"])
presenceCount = Self.intOf(p["presenceCount"])
}
case "log":
if let p = payload as? [String: Any], let msg = p["msg"] as? String
{
lastEngineLog = msg
logs.insert(LogEntry(level: p["level"] as? String ?? "info", message: msg, at: Date()), at: 0)
if logs.count > Self.logsCap { logs.removeLast(logs.count - Self.logsCap) }
}
case "clipboard":
// UIPasteboard
if let p = payload as? [String: Any], let content = p["content"] as? String, !content.isEmpty
{
UIPasteboard.general.string = content
notify(t("ios.clipboard.pulled"), kind: .success)
}
else
{
notify(t("ios.clipboard.empty"), kind: .info)
}
case "clipboardUploaded":
notify(t("ios.clipboard.uploaded"), kind: .success)
case "deviceRevoked":
notify(t("ios.devices.revoked"), kind: .success)
case "loginRequest":
// #8
if let p = payload as? [String: Any],
let rid = p["request_id"] as? String, let code = p["code"] as? String
{
pendingLoginRequest = LoginRequestItem(
requestId: rid, code: code,
deviceName: p["device_name"] as? String ?? "",
deviceType: p["device_type"] as? String ?? "",
requestIp: p["request_ip"] as? String ?? "")
}
case "loginApproved":
notify(t("ios.scan.approved"), kind: .success)
case "loginDenied":
notify(t("ios.scan.denied"), kind: .success)
case "loginFailed":
pendingLoginRequest = nil
notify(t("ios.scan.failed"), kind: .error)
case "identityUpdated":
// /api/me QR UUID + Keychain
// UUID#12
if let p = payload as? [String: Any], let name = p["name"] as? String, !name.isEmpty
{
auth?.updateIdentity(name: name, avatar: p["avatar"] as? String)
}
case "renamed":
// PATCH /api/devices/{device_id} + 广 presence
// Keychain 使 boot
if let p = payload as? [String: Any], let name = p["name"] as? String, !name.isEmpty
{
DeviceNameStore.value = name
auth?.updateDeviceName(name)
deviceName = name
notify(t("ios.settings.deviceName.success"), kind: .success)
}
case "error":
// error /
if let p = payload as? [String: Any]
{
let stage = p["stage"] as? String ?? ""
let msg = p["message"] as? String ?? ""
if stage == "clipboard" { notify(t("ios.clipboard.failed"), kind: .error) }
else if stage == "revoke"
{
notify(msg == "step_up_required"
? t("ios.devices.revokeStepUp") : t("ios.devices.revokeFailed"), kind: .error)
}
else { status = "错误:\(msg)" }
}
case "sessionRotated":
// broker refresh Keychain refresh
if let p = payload as? [String: Any],
let access = p["access_token"] as? String,
let refresh = p["refresh_token"] as? String
{
auth?.updateSession(accessToken: access, refreshToken: refresh)
}
case "widgetSession":
// App Group /
if let p = payload as? [String: Any],
let access = p["access_token"] as? String,
let refresh = p["refresh_token"] as? String,
let userId = p["user_id"] as? String
{
WidgetSessionStore.save(WidgetSession(accessToken: access, refreshToken: refresh, userId: userId))
}
case "authExpired":
// refresh / Keychain
auth?.logout()
reset()
default:
break
}
}
private func resolve(id: Int, ok: Bool, value: Any?)
{
webView?.evaluateJavaScript("window.__cdropEngineResolve(\(id), \(ok), \(jsonValue(value)));")
}
// transfers history
// BackgroundTaskManager / / R-iOS-1 / R-iOS-3
private func syncBackgroundTask()
{
let total = transfers.reduce(0) { $0 + $1.fileSize }
let done = transfers.reduce(0) { $0 + ($1.bytesTransferred ?? 0) }
let fraction = total > 0 ? Double(done) / Double(total) : 0
BackgroundTaskManager.shared.sync(activeCount: transfers.count, fraction: fraction)
}
}
// MARK: - schemecdrop-file
extension EngineController: WKURLSchemeHandler
{
// cdrop-file://<id> JS fetch
// PLAN §2 / R-iOS-4rangeSource `Range` seek
// 206 Partial Content jetsam Range
// 退 Range
func webView(_ webView: WKWebView, start urlSchemeTask: any WKURLSchemeTask)
{
guard let url = urlSchemeTask.request.url, let id = url.host, let fileURL = outgoing[id]
else
{
respond(urlSchemeTask, status: 404)
return
}
guard let attrs = try? FileManager.default.attributesOfItem(atPath: fileURL.path),
let total = attrs[.size] as? Int,
let handle = try? FileHandle(forReadingFrom: fileURL)
else
{
respond(urlSchemeTask, status: 404)
return
}
defer { try? handle.close() }
if let range = Self.parseByteRange(urlSchemeTask.request.value(forHTTPHeaderField: "Range"), total: total)
{
let data: Data
do
{
try handle.seek(toOffset: UInt64(range.lowerBound))
data = (try handle.read(upToCount: range.count)) ?? Data()
}
catch
{
respond(urlSchemeTask, status: 500)
return
}
let resp = HTTPURLResponse(url: url, statusCode: 206, httpVersion: "HTTP/1.1",
headerFields: [
"Content-Type": "application/octet-stream",
"Content-Length": "\(data.count)",
"Content-Range": "bytes \(range.lowerBound)-\(range.upperBound - 1)/\(total)",
"Accept-Ranges": "bytes",
])!
urlSchemeTask.didReceive(resp)
urlSchemeTask.didReceive(data)
urlSchemeTask.didFinish()
return
}
let data = (try? handle.readToEnd()) ?? Data()
let resp = HTTPURLResponse(url: url, statusCode: 200, httpVersion: "HTTP/1.1",
headerFields: [
"Content-Type": "application/octet-stream",
"Content-Length": "\(data.count)",
"Accept-Ranges": "bytes",
])!
urlSchemeTask.didReceive(resp)
urlSchemeTask.didReceive(data)
urlSchemeTask.didFinish()
}
func webView(_ webView: WKWebView, stop urlSchemeTask: any WKURLSchemeTask)
{
// read
}
// HTTP `Range: bytes=start-end`end [lowerBound, upperBound)
// end "bytes=start-" EOF / nil
static func parseByteRange(_ header: String?, total: Int) -> Range<Int>?
{
guard let header, header.hasPrefix("bytes="), total > 0 else { return nil }
let spec = header.dropFirst("bytes=".count)
let parts = spec.split(separator: "-", maxSplits: 1, omittingEmptySubsequences: false)
guard parts.count == 2, let start = Int(parts[0]), start >= 0, start < total else { return nil }
let endInclusive: Int
if parts[1].isEmpty { endInclusive = total - 1 }
else if let e = Int(parts[1]) { endInclusive = min(e, total - 1) }
else { return nil }
guard endInclusive >= start else { return nil }
return start ..< (endInclusive + 1)
}
private func respond(_ task: any WKURLSchemeTask, status: Int)
{
guard let url = task.request.url,
let resp = HTTPURLResponse(url: url, statusCode: status, httpVersion: nil, headerFields: nil)
else { return }
task.didReceive(resp)
task.didFinish()
}
}
// MARK: - DeviceItem
extension EngineController
{
// WKWebView NSNumber / Int / Double / Bool
//
static func parseDevice(_ d: [String: Any]) -> DeviceItem?
{
guard let name = d["name"] as? String, let type = d["type"] as? String else { return nil }
// web store DeviceInfocamelCasedeviceId / lastSeen
return DeviceItem(deviceID: d["deviceId"] as? String ?? "",
name: name,
type: type,
online: boolOf(d["online"]),
lastSeen: doubleOf(d["lastSeen"]))
}
static func parseMessage(_ m: [String: Any]) -> MessageItem?
{
guard let id = m["id"] as? String, let text = m["text"] as? String else { return nil }
return MessageItem(id: id,
direction: m["direction"] as? String ?? "incoming",
peerName: m["peerName"] as? String ?? "",
text: text,
sentAt: doubleOf(m["sentAt"]))
}
static func parseTransfer(_ t: [String: Any]) -> TransferItem?
{
guard let sessionId = t["sessionId"] as? String else { return nil }
let ice = t["ice"] as? [String: Any]
return TransferItem(sessionId: sessionId,
direction: t["direction"] as? String ?? "outgoing",
fileName: t["fileName"] as? String ?? "",
fileSize: intOf(t["fileSize"]),
state: t["state"] as? String ?? "PENDING",
mode: t["mode"] as? String,
peerName: t["peerName"] as? String ?? "",
phase: t["phase"] as? String,
bytesTransferred: t["bytesTransferred"].map { intOf($0) },
bytesPerSec: t["bytesPerSec"].map { doubleOf($0) },
iceConn: ice?["conn"] as? String,
iceLocal: ice?["local"] as? String,
iceRemote: ice?["remote"] as? String)
}
static func boolOf(_ v: Any?) -> Bool
{
if let b = v as? Bool { return b }
if let n = v as? NSNumber { return n.boolValue }
return false
}
static func intOf(_ v: Any?) -> Int
{
if let i = v as? Int { return i }
if let n = v as? NSNumber { return n.intValue }
if let d = v as? Double { return Int(d) }
return 0
}
static func doubleOf(_ v: Any?) -> Double
{
if let d = v as? Double { return d }
if let n = v as? NSNumber { return n.doubleValue }
if let i = v as? Int { return Double(i) }
return 0
}
}
// MARK: -
private extension EngineController
{
func decodeBase64(_ v: Any?) -> Data
{
guard let s = v as? String, let d = Data(base64Encoded: s) else { return Data() }
return d
}
func jsonString(_ obj: [String: Any]) -> String?
{
guard JSONSerialization.isValidJSONObject(obj),
let d = try? JSONSerialization.data(withJSONObject: obj),
let s = String(data: d, encoding: .utf8)
else { return nil }
return s
}
// JS JSON nil null
// JSONSerialization
func jsonValue(_ v: Any?) -> String
{
guard let v = v else { return "null" }
guard let d = try? JSONSerialization.data(withJSONObject: [v]),
let s = String(data: d, encoding: .utf8)
else { return "null" }
return String(s.dropFirst().dropLast())
}
func jsString(_ s: String) -> String
{
return jsonValue(s)
}
// boot JSON nullapi_base
func sessionJSON() -> String
{
guard let s = auth?.session else { return "null" }
return "{ access_token: \(jsString(s.accessToken)), "
+ "refresh_token: \(jsString(s.refreshToken)), "
+ "user: { id: \(jsString(s.user.id)), name: \(jsString(s.user.name)) } }"
}
func currentDeviceName() -> String
{
return auth?.session?.deviceName ?? "iPhone"
}
func apiBaseForBoot() -> String
{
return ProcessInfo.processInfo.environment["CDROP_API_BASE"] ?? ""
}
}