现象: 曲库正常后点歌失败「详情=无法生成下载地址」,且远程日志里没有任何线索。
排查(本地复现源站协议):
- 用同一套签名从本机请求 i.php / music/do.php 全部正常,能拿到这首歌的真实地址;
换 App 注入的版本号(VER=2.0/VN=4.1.3.03281430) 也正常 → 源站没问题,是设备侧。
- 根因在 KtvJsBridge.rawRequest() 这条裸 Socket 通道(点歌取址正是走它):
1. 连接阶段没有超时: `Socket(host, port)` 不受 soTimeout 约束,遇路由黑洞按系统
TCP 超时(~2min)干等;7 个源叠加远超 JS_REQUEST_TIMEOUT_MS(180s) →
桥返回空 → 「无法生成下载地址」,而日志里连失败都没有(请求还没失败);
2. HTTPS 分支用 SSLSocketFactory.getDefault(),既不受
HttpsURLConnection.setDefaultSSLSocketFactory 影响,也不受
network_security_config 约束 → 老设备缺 ISRG 新根时握手必失败。
修复:
- rawRequest 连接改为显式 connect(timeout): Socket().connect(InetSocketAddress, t);
HTTPS 改用 TlsCompat.sslSocketFactory()(系统信任 ∪ 内置根证书)。
- TlsCompat 暴露 sslSocketFactory(),并按 API 分级: 裸通道始终用增强工厂,
HttpsURLConnection 默认工厂仅在 API<24 接管。
- 裸通道失败上报 RAW-ERR(原来只在 logcat)。
- 打通 JS 侧日志: wrapHtml 注入 console 桥,把 ktv_api.js 的 _log()/console.log
转发到 android.log → MiliLog("JS ...");点歌失败时可通过
「JS ...」逐步过程 + 「点歌失败 ... 详情=」汇总原因定位。
版本 1.4.5(25) 到 1.4.6(26);签名证书不变。ktv_api.js 未改动,KTV_BRIDGE_API 仍为 8。
Maidong KTV
A local karaoke application for Android TV and landscape song-selection devices
Remote Control · Song Discovery · Request Queue · Download Management · Stable Playback
Core Features
- Full TV remote navigation with directional keys, confirmation, back, and long-press actions.
- Consistent focus feedback for buttons, lists, cards, switches, and dialogs.
- Home entries for charts, song titles, singers, frequently played songs, favorites, categories, and local songs.
- Online and local search with language filters, paging, and initial-letter keyboard input.
- Singer browsing with portrait tags and singer-specific song lists.
- Song ordering, batch ordering, queue prioritization, favorites, and file management.
- Real-time synchronization across queued, played, and downloaded song lists.
- New requests join the end of the queue without interrupting the current requested song.
- Automatic playback when requested songs are available, including smooth transitions from public playback.
Playback
- IJK-based playback for local and downloaded songs.
- Continuous playback while navigating between pages or switching between windowed and full-screen modes.
- Play, pause, skip, replay, progress display, and seeking controls.
- Original-vocal and accompaniment switching without changing the current play or pause state.
- Synchronized playback state across windowed controls, full-screen controls, and status overlays.
- Song title overlays, temporary mode prompts, and persistent pause indicators.
- Video ratio, automatic full screen, audio-video synchronization, and public playback settings.
- Maximum song volume and configurable original-vocal and accompaniment behavior.
Downloads And Data
- Background downloads with progress, resume support, and automatic retry.
- Automatic cleanup and retry after download or decryption failures.
- Recognition, counting, and playback of downloaded local songs.
- Segmented database download, verification, merge, and atomic update.
- Directory creation, database scanning, and download startup only after storage permission is granted.
- Local disk and USB song scanning, reserved storage settings, and automatic cleanup.
- Unified Maidong KTV data storage to avoid conflicts with other applications.
Settings
- Data settings for library updates, local scanning, reserved space, automatic cleanup, and database maintenance.
- Playback settings for public playback, automatic full screen, video ratio, synchronization, and title overlays.
- Sound settings for volume behavior, maximum song volume, original vocals, and accompaniment.
- Interface settings for language, floating controls, carousel content, and song title overlays.
- Dialog selections remain temporary until confirmed and provide clear remote-control focus feedback.
Interface And Interaction
- Landscape TV layout optimized for long-distance viewing.
- Consistent state and meaning across top, windowed, and full-screen playback controls.
- Stable focus during list refreshes, paging, tab changes, and song ordering.
- Focus changes color only and preserves each control's original dimensions, corners, and layout.
- A consistent circular Maidong logo across the home screen, player, and application information.
Project Notice
This repository: https://gitea.kasugano.cn/zijunchiang/maidong-ktv
UI/feature framework credit: https://gitee.com/yangyachao-X/maidong-ktv
This repository reworks the upstream "Maidong KTV" UI and feature framework, and the core/data layer was rewritten with DSH (DeepSeek Harness): library sync, song-source integration, device auth, risk-control handling, remote logging, and ad blocking are all new implementations.
Highlights of the reworked data layer:
- Library: synced exclusively from the official Muse service
(
mconn.cherryonline.cnmls-api/v1/sqlite/sync); the code host carries source only, no database files. - Song source:
w.w345.my(i.phptoken →do.phpplayback URL) with fixed device identity and reproduced signing; ad/mismatched resources (e.g.wb66.cn/.../719.ts) are blocked and retried. - JS hot-update:
app/src/main/assets/mobile/ktv_api.js, requires theKTV_BRIDGE_API: 7marker.
Building
Requirements: JDK 17, Android SDK (compileSdk 35, minSdk 21, targetSdk 25),
Gradle wrapper 8.13 (bundled).
cd maidong-ktv
export JAVA_HOME=/path/to/jdk-17
export ANDROID_HOME=/path/to/android-sdk
export ANDROID_SDK_ROOT=$ANDROID_HOME
./gradlew assembleRelease
The release signing config in app/build.gradle expects ../../ktv_keystore.jks (one level above the
repo root) with alias ktv / password 123456; adjust paths or use signingConfigs.debug for a
quick unsigned build. Output: app/build/outputs/apk/release/app-release.apk
(dual ABI: armeabi-v7a + arm64-v8a). Install with adb install -r <apk>.
For non-commercial learning purposes only. Respect upstream copyright and song licensing.
