Phase 1.F: WebView 加载从 file:// 迁到 ylgame://h5 自定义 scheme
为未来 Cocos 子游戏 H5 build 适配铺路（file:// 下 Cocos XHR/fetch 受 null-origin 限制几乎必踩坑），同时保留大厅 + 子游戏跨页 localStorage 共享语义（用单虚拟 host `h5` 让所有 H5 same-origin）。 变更： - 新增 AppSchemeHandler（WKURLSchemeHandler 单例 + Range/MIME/异步 IO/ 取消语义；闭包只携 Sendable ObjectIdentifier，不捕获 task） - SandboxPaths 加 lobbyIndexAppURL / subGameIndexAppURL builders - BridgedWebView 注册 scheme handler（WKWebView init 前） - WebContainerViewController / SubGameViewController 的 loadFileURL → webView.load(URLRequest)，OverlayViewController 不变 文档： - Plan 新增 Phase 1.F (1.18-1.21) + ADR-010 决策记录 + 进度勾选 - Design 新增 §7.6 包含 URL 结构 / 实现要点 / 等价性表 / Cocos 预检脚本 - Contract §0.2 / §4.1 / §10 验收清单同步切换说明（H5 可观察差异： location.protocol "file:" → "ylgame:"，项目方已 grep 确认现网 H5 不依赖此字面） 存量影响：file:// → ylgame:// origin 切换时老用户 localStorage 一次性 清零，已与项目方确认业务可接受、不做迁移补偿。 BuildProject 通过。Plan 进度已勾选 1.18/1.19/1.20。 Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
joywayer
co-authored by
Claude Opus 4.7
Claude Opus 4.7
parent
960adc5491
commit
04e702a99b
@@ -0,0 +1,415 @@
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//
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// AppSchemeHandler.swift
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// ylgamehall
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//
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// WKURLSchemeHandler 实现，承接 `ylgame://h5/...` 自定义 scheme。
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// 替代原 loadFileURL 路径，让大厅 + 所有子游戏跑在同一个稳定 origin
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// (`ylgame://h5`) 下，从而：
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// 1) 共享 localStorage（同 scheme + 同 host = 同 security origin）
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// 2) 摆脱 file:// 的 XHR/fetch null-origin 限制（Cocos H5 build 适配前置）
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// 3) 给 `<audio>/<video>` 提供 Range 请求支持（Cocos 音频 seek）
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//
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// 路由：
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// ylgame://h5/lobby/<rest...> → SandboxPaths.lobbyRoot/<rest...>
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// ylgame://h5/subgame/<dir>/<rest...> → SandboxPaths.subGameRoot(dir)/<rest...>
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//
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// 设计 / Phase 见 docs/H5-Native-Implementation-Design.md §17（新增）/
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// docs/Development-Plan.md Phase 1.F。
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//
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import Foundation
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@preconcurrency import WebKit
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import os.log
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// MARK: - 常量（项目前缀）
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/// 自定义 scheme + host + 路径前缀常量。**所有成员 nonisolated**，让
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/// `SandboxPaths`（nonisolated）能在任意上下文拼 URL（项目启用了
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/// MainActor-by-default 默认隔离，未标 nonisolated 的 static 会被推断为
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/// MainActor 隔离，背景 IO 队列无法访问）。
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public enum AppScheme {
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/// scheme = "ylgame"（项目前缀，避免与其它 app 自定义 scheme 冲突）
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nonisolated public static let scheme = "ylgame"
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/// 单虚拟 host = "h5"。**所有 H5 页（大厅 + 所有子游戏）共用此 host**，
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/// 确保 same-origin → 共享 localStorage / IndexedDB / sessionStorage。
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nonisolated public static let host = "h5"
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/// 大厅根路径段：`/lobby/...`
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nonisolated public static let lobbyPrefix = "lobby"
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/// 子游戏根路径段：`/subgame/<dir>/...`
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nonisolated public static let subGamePrefix = "subgame"
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}
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// MARK: - Handler
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/// 自定义 URL scheme 的 WKURLSchemeHandler。**单例**注册到所有 BridgedWebView 的
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/// WKWebViewConfiguration（同一实例可挂多个 WKWebViewConfiguration；每个
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/// configuration 内每个 scheme 只能注册一次）。
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@MainActor
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public final class AppSchemeHandler: NSObject, WKURLSchemeHandler {
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public static let shared = AppSchemeHandler()
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private static let log = Logger(subsystem: "ylgamehall", category: "AppSchemeHandler")
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/// 后台 IO 队列。所有 file IO + Range parsing 在此运行，避免阻塞主线程。
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private let ioQueue = DispatchQueue(
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label: "ylgamehall.app-scheme-handler.io",
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qos: .userInitiated,
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attributes: .concurrent
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)
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/// 跟踪进行中的 task。**仅主线程访问**（start / stop / deliver 都在 MainActor）。
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/// 用 ObjectIdentifier 作 key 是为了让背景 IO 队列只携带 Sendable 的 key 跨边界，
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/// 不把非 Sendable 的 `any WKURLSchemeTask` 捕获进 `@Sendable` 闭包。
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/// WKURLSchemeTask 协议规定 stop 后不能再向 task 发任何消息（否则 NSException），
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/// 用 `cancelledKeys` 标记取消、`tasksByKey` 持强引用配套使用。
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private var tasksByKey: [ObjectIdentifier: any WKURLSchemeTask] = [:]
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private var cancelledKeys: Set<ObjectIdentifier> = []
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private override init() {
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super.init()
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}
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// MARK: - WKURLSchemeHandler
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public func webView(_ webView: WKWebView, start urlSchemeTask: any WKURLSchemeTask) {
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let key = ObjectIdentifier(urlSchemeTask)
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tasksByKey[key] = urlSchemeTask
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guard let url = urlSchemeTask.request.url else {
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finish(key: key, withError: AppSchemeError.invalidURL)
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return
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}
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let rangeHeader = urlSchemeTask.request.value(forHTTPHeaderField: "Range")
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// 路由 + 文件路径解析（主线程做，廉价）
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let resolved: ResolvedRequest
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do {
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resolved = try Self.resolveRequest(url: url, rangeHeader: rangeHeader)
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} catch {
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finish(key: key, withError: error)
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return
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}
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// 读盘 + 响应 → 后台队列。注意：闭包只捕获 Sendable 的 `key` / `resolved`，
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// 不捕获非 Sendable 的 `urlSchemeTask`，避免数据竞争告警。
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ioQueue.async { [weak self] in
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let result = Self.readAndBuildResponse(resolved: resolved)
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Task { @MainActor in
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self?.deliver(result: result, forKey: key)
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}
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}
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}
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public func webView(_ webView: WKWebView, stop urlSchemeTask: any WKURLSchemeTask) {
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let key = ObjectIdentifier(urlSchemeTask)
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// 标记取消，io 队列完成后 deliver 见此标志直接短路。tasksByKey 在 deliver
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// / finish 内清理，不在此处提前移除（避免与背景 IO 完成竞态）。
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cancelledKeys.insert(key)
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}
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// MARK: - Routing（nonisolated 纯函数）
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fileprivate struct ResolvedRequest {
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let fileURL: URL
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let url: URL
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let rangeHeader: String?
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}
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/// 把 `ylgame://h5/<prefix>/<rest>` 解析为沙盒实际文件路径。
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/// - lobby 前缀：rest 全段拼到 lobbyRoot
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/// - subgame 前缀：第一段是 dir，剩余拼到 subGameRoot(dir)
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nonisolated fileprivate static func resolveRequest(
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url: URL,
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rangeHeader: String?
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) throws -> ResolvedRequest {
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guard url.scheme?.lowercased() == AppScheme.scheme,
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url.host?.lowercased() == AppScheme.host
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else {
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throw AppSchemeError.invalidURL
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}
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// path 形如 "/lobby/gameStart/index.html" 或 "/subgame/<dir>/<start>/index.html"
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let segments = url.path
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.split(separator: "/", omittingEmptySubsequences: true)
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.map(String.init)
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guard let prefix = segments.first else {
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throw AppSchemeError.invalidURL
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}
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let fileURL: URL
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switch prefix {
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case AppScheme.lobbyPrefix:
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let rest = segments.dropFirst().joined(separator: "/")
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fileURL = SandboxPaths.lobbyRoot.appendingPathComponent(rest)
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case AppScheme.subGamePrefix:
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guard segments.count >= 2 else {
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throw AppSchemeError.invalidURL
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}
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let dir = segments[1]
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let rest = segments.dropFirst(2).joined(separator: "/")
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fileURL = SandboxPaths.subGameRoot(dir).appendingPathComponent(rest)
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default:
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throw AppSchemeError.invalidURL
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}
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return ResolvedRequest(fileURL: fileURL, url: url, rangeHeader: rangeHeader)
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}
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// MARK: - Reading + response building（IO 队列调用）
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fileprivate enum BuildResult {
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case ok(HTTPURLResponse, Data)
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case fail(AppSchemeError)
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}
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nonisolated fileprivate static func readAndBuildResponse(
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resolved: ResolvedRequest
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) -> BuildResult {
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let fileURL = resolved.fileURL
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let fm = FileManager.default
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guard fm.fileExists(atPath: fileURL.path),
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let attrs = try? fm.attributesOfItem(atPath: fileURL.path),
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let size = (attrs[.size] as? NSNumber)?.intValue
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else {
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return .fail(.fileNotFound(fileURL.path))
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}
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let mime = MimeMap.mime(forExtension: fileURL.pathExtension)
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// Range 请求 → 206
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if let rangeHeader = resolved.rangeHeader,
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let (start, end) = parseRange(rangeHeader, totalSize: size) {
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do {
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let handle = try FileHandle(forReadingFrom: fileURL)
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defer { try? handle.close() }
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try handle.seek(toOffset: UInt64(start))
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let length = end - start + 1
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let data = try handle.read(upToCount: length) ?? Data()
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let response = makePartialResponse(
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url: resolved.url,
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mime: mime,
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start: start,
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end: end,
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totalSize: size,
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contentLength: data.count
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)
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return .ok(response, data)
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} catch {
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return .fail(.readFailed(error))
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}
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}
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// 全文件 → 200
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do {
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let data = try Data(contentsOf: fileURL, options: [.mappedIfSafe])
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let response = makeFullResponse(
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url: resolved.url,
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mime: mime,
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contentLength: data.count
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)
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return .ok(response, data)
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} catch {
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return .fail(.readFailed(error))
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}
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}
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nonisolated private static func makeFullResponse(
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url: URL,
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mime: String,
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contentLength: Int
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) -> HTTPURLResponse {
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let headers: [String: String] = [
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"Content-Type": mime,
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"Content-Length": "\(contentLength)",
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// 防御性 CORS：自定义 scheme 同源本不需要 preflight，但部分 Cocos build
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// 在 fetch 默认 mode='cors' 下会走 preflight，发回 * 兜底
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"Access-Control-Allow-Origin": "*",
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// 沙盒文件随升级路径改变（lobby zip 升级直接覆盖原目录），禁强缓存避免错版
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"Cache-Control": "no-cache",
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"Accept-Ranges": "bytes"
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]
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return HTTPURLResponse(
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url: url,
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statusCode: 200,
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httpVersion: "HTTP/1.1",
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headerFields: headers
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)!
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}
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nonisolated private static func makePartialResponse(
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url: URL,
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mime: String,
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start: Int,
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end: Int,
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totalSize: Int,
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contentLength: Int
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) -> HTTPURLResponse {
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let headers: [String: String] = [
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"Content-Type": mime,
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"Content-Length": "\(contentLength)",
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"Content-Range": "bytes \(start)-\(end)/\(totalSize)",
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"Access-Control-Allow-Origin": "*",
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"Cache-Control": "no-cache",
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"Accept-Ranges": "bytes"
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]
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return HTTPURLResponse(
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url: url,
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statusCode: 206,
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httpVersion: "HTTP/1.1",
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headerFields: headers
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)!
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}
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/// 解析 Range 头：支持 `bytes=start-end` / `bytes=start-` / `bytes=-suffix`。
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/// 不支持 multi-range（逗号分隔），Cocos 不发。
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nonisolated private static func parseRange(
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_ header: String,
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totalSize: Int
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) -> (Int, Int)? {
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guard header.lowercased().hasPrefix("bytes=") else { return nil }
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let spec = String(header.dropFirst("bytes=".count))
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if spec.contains(",") { return nil }
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let parts = spec.split(separator: "-", maxSplits: 1, omittingEmptySubsequences: false)
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guard parts.count == 2 else { return nil }
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let startStr = String(parts[0])
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let endStr = String(parts[1])
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// bytes=-N → 最后 N 字节
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if startStr.isEmpty, let suffix = Int(endStr), suffix > 0 {
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let start = max(totalSize - suffix, 0)
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return (start, totalSize - 1)
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}
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guard let start = Int(startStr), start >= 0, start < totalSize else { return nil }
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if endStr.isEmpty {
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return (start, totalSize - 1)
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}
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guard let end = Int(endStr), end >= start, end < totalSize else { return nil }
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return (start, end)
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}
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// MARK: - Delivery（主线程）
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private func deliver(result: BuildResult, forKey key: ObjectIdentifier) {
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// task 已被 stop 标记 → 一律不向 task 发任何消息（否则 NSException）。
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// 即使如此，仍要从两个表里清理引用避免泄漏。
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guard let urlSchemeTask = tasksByKey.removeValue(forKey: key) else { return }
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if cancelledKeys.remove(key) != nil { return }
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switch result {
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case .ok(let response, let data):
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urlSchemeTask.didReceive(response)
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urlSchemeTask.didReceive(data)
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urlSchemeTask.didFinish()
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Self.log.debug("→ \(response.statusCode, privacy: .public) \(response.url?.absoluteString ?? "", privacy: .public) \(data.count, privacy: .public)B")
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case .fail(let error):
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urlSchemeTask.didFailWithError(error.toNSError)
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Self.log.error("✗ \(error.debugDescription, privacy: .public)")
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}
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}
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private func finish(key: ObjectIdentifier, withError error: any Error) {
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guard let urlSchemeTask = tasksByKey.removeValue(forKey: key) else { return }
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if cancelledKeys.remove(key) != nil { return }
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let ns = (error as? AppSchemeError)?.toNSError ?? (error as NSError)
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urlSchemeTask.didFailWithError(ns)
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}
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}
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// MARK: - Errors
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public enum AppSchemeError: Error, CustomDebugStringConvertible, Sendable {
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case invalidURL
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case fileNotFound(String)
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case readFailed(any Error)
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public var debugDescription: String {
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switch self {
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case .invalidURL: return "invalid url"
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case .fileNotFound(let p): return "file not found: \(p)"
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case .readFailed(let e): return "read failed: \(e)"
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}
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}
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var toNSError: NSError {
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switch self {
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case .invalidURL:
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return NSError(
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domain: "AppSchemeHandler",
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code: -1,
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userInfo: [NSLocalizedDescriptionKey: "invalid url"]
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)
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case .fileNotFound(let p):
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return NSError(
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domain: "AppSchemeHandler",
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code: 404,
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userInfo: [NSLocalizedDescriptionKey: "not found: \(p)"]
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)
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case .readFailed(let e):
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return e as NSError
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}
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}
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}
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// MARK: - MIME map
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/// 扩展名 → MIME 映射。Cocos H5 build 常用扩展全打表，未命中走
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/// `application/octet-stream`（WKWebView 仍能下载，只是不会自动按内容类型行为）。
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/// `nonisolated` 让 IO 队列能直接调用（项目 MainActor-by-default）。
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enum MimeMap {
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nonisolated static func mime(forExtension ext: String) -> String {
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let lower = ext.lowercased()
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return table[lower] ?? "application/octet-stream"
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}
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nonisolated private static let table: [String: String] = [
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// 文本类
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"html": "text/html; charset=utf-8",
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"htm": "text/html; charset=utf-8",
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"js": "text/javascript; charset=utf-8",
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"mjs": "text/javascript; charset=utf-8",
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"css": "text/css; charset=utf-8",
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"json": "application/json; charset=utf-8",
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"txt": "text/plain; charset=utf-8",
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"xml": "application/xml; charset=utf-8",
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"atlas": "text/plain; charset=utf-8", // Cocos atlas 文件
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"fnt": "text/plain; charset=utf-8", // Cocos bitmap font
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"plist": "application/x-plist",
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"wasm": "application/wasm",
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// 图片
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"png": "image/png",
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"jpg": "image/jpeg",
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"jpeg": "image/jpeg",
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"gif": "image/gif",
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"webp": "image/webp",
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"svg": "image/svg+xml",
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"ico": "image/x-icon",
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"bmp": "image/bmp",
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// 音频
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"mp3": "audio/mpeg",
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"ogg": "audio/ogg",
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"oga": "audio/ogg",
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"wav": "audio/wav",
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"m4a": "audio/mp4",
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"aac": "audio/aac",
|
||||
|
||||
// 视频
|
||||
"mp4": "video/mp4",
|
||||
"m4v": "video/mp4",
|
||||
"webm": "video/webm",
|
||||
"mov": "video/quicktime",
|
||||
|
||||
// 字体
|
||||
"ttf": "font/ttf",
|
||||
"otf": "font/otf",
|
||||
"woff": "font/woff",
|
||||
"woff2": "font/woff2",
|
||||
"eot": "application/vnd.ms-fontobject",
|
||||
|
||||
"bin": "application/octet-stream"
|
||||
]
|
||||
}
|
||||
@@ -30,6 +30,18 @@ public final class BridgedWebView: UIView {
|
||||
configuration.mediaTypesRequiringUserActionForPlayback = []
|
||||
configuration.processPool = SharedProcessPool.shared
|
||||
|
||||
// ── 自定义 URL scheme 注册（Phase 1.F）────────────────────
|
||||
// 大厅 + 子游戏的 H5 通过 `ylgame://h5/...` 加载，由 AppSchemeHandler 反向
|
||||
// 映射到沙盒文件。理由（详见 docs/H5-Native-Implementation-Design.md §17）：
|
||||
// - file:// origin 是 null，XHR/fetch 受限；自定义 scheme 是稳定 origin
|
||||
// - 大厅 + 所有子游戏共用 `ylgame://h5` 单 host → same-origin →
|
||||
// 共享 localStorage（与现状 file:// 等价）
|
||||
// - 为未来 Cocos 子游戏 H5 适配铺路
|
||||
configuration.setURLSchemeHandler(
|
||||
AppSchemeHandler.shared,
|
||||
forURLScheme: AppScheme.scheme
|
||||
)
|
||||
|
||||
// ── 在 documentStart 注入 WebViewJavascriptBridge.js ─────
|
||||
// .atDocumentStart 保证 H5 业务代码运行时 window.WebViewJavascriptBridge 已就绪
|
||||
if let url = Bundle.main.url(forResource: "WebViewJavascriptBridge",
|
||||
|
||||
@@ -245,13 +245,13 @@ public final class SubGameViewController: UIViewController {
|
||||
try writer.writeBattery(BatteryMonitor.shared.currentLevel)
|
||||
try writer.writeNetwork(NetworkMonitor.shared.currentCode)
|
||||
|
||||
// 3. 加载子游戏 H5（allowingReadAccessTo 给 subGameRoot 才能跨目录引用资源）
|
||||
// 3. 加载子游戏 H5（Phase 1.F：从 loadFileURL 迁到 AppSchemeHandler）
|
||||
// URL：ylgame://h5/subgame/<dir>/<start>/index.html
|
||||
// 与大厅同 host（"h5"）→ same-origin → 共享 localStorage。
|
||||
// 跨目录引用自动落回 subGameRoot(<dir>)，等价原 allowingReadAccessTo 语义。
|
||||
splash.update(text: "进入子游戏...", progress: nil)
|
||||
let indexURL = SandboxPaths.subGameIndex(effectiveGameDir, request.gameStart)
|
||||
bridgedWebView.webView.loadFileURL(
|
||||
indexURL,
|
||||
allowingReadAccessTo: SandboxPaths.subGameRoot(effectiveGameDir)
|
||||
)
|
||||
let indexURL = SandboxPaths.subGameIndexAppURL(effectiveGameDir, request.gameStart)
|
||||
bridgedWebView.webView.load(URLRequest(url: indexURL))
|
||||
}
|
||||
|
||||
/// 子游戏启动期两次 resolve：
|
||||
|
||||
@@ -407,12 +407,13 @@ public final class WebContainerViewController: UIViewController {
|
||||
// 详见 docs/H5-Native-Implementation-Design.md §7.5
|
||||
try writeAppDataFiles(resolved: resolved)
|
||||
|
||||
// 7. 加载本地 H5（allowingReadAccessTo 必须给 lobbyRoot 才能跨目录引用资源）
|
||||
// 7. 加载本地 H5（Phase 1.F：从 loadFileURL 迁到 AppSchemeHandler）
|
||||
// URL：ylgame://h5/lobby/<gameStart>/index.html
|
||||
// AppSchemeHandler 把 /lobby/<rest> 反向映射到 lobbyRoot/<rest> 读盘。
|
||||
// 跨目录引用（H5 用 ../foo.js）自动落回 lobbyRoot，等价 file:// 的
|
||||
// allowingReadAccessTo 语义。
|
||||
splash.update(text: "加载大厅...", progress: nil)
|
||||
bridgedWebView.webView.loadFileURL(
|
||||
SandboxPaths.lobbyIndex,
|
||||
allowingReadAccessTo: SandboxPaths.lobbyRoot
|
||||
)
|
||||
bridgedWebView.webView.load(URLRequest(url: SandboxPaths.lobbyIndexAppURL))
|
||||
}
|
||||
|
||||
/// 写 4 个 app_*.js 文件首次值（loadFileURL 之前调一次，monitor 已启动）。
|
||||
|
||||
Reference in New Issue
Block a user