fix: clean up both LangSelector paths on logout by 52cyb · Pull Request #237 · linuxdeepin/dde-session

52cyb · 2026-10-20T06:28:36Z

The executable moved to /usr/libexec/deepin/langselector. /usr/lib/deepin-daemon/langselector remains a compatible entry point, using a wrapper and security loader to launch the new executable.
Logout cleanup only matched the old path, missing the actual process. Surviving processes retained their startup locale and cached translations, causing notifications to use a previous session's language.
Temporarily match both paths during logout, restricted to the current user. Anchor the command path and program name to avoid false matches. Abnormal session exits and reactivation after cleanup remain uncovered.

Log: Fix stale notification translations after changing session language

Influence:

Switch between English, Simplified Chinese and Traditional Chinese; log out and back in, then verify notification language.
Verify LangSelector processes from either path terminate on logout.
Verify cleanup does not affect other users or similarly named programs.

fix: 注销时兼容清理新旧路径的 LangSelector 进程

LangSelector 的真实二进制已迁移至 /usr/libexec/deepin/langselector，旧路径 /usr/lib/deepin-daemon/langselector 保留为兼容启动入口，通过 wrapper 和安全加载器启动新路径下的程序。
原注销逻辑仅匹配旧路径，未覆盖新路径下的实际进程。残留进程保留启动时的语言环境和翻译缓存，导致新会话切换语言时，通知正文仍使用上一会话的语言。
临时方案在注销时同时匹配新旧路径，兼容不同安装布局，保留当前用户限制，并限定命令行起始位置和程序名边界，避免误匹配其他进程。此方案暂不覆盖会话异常退出及清理后再次激活的情况。

Log: 修复切换会话语言后通知正文沿用旧语言的问题

Influence:

验证英文、简体中文、繁体中文之间切换并重新登录后的通知语言。
验证新旧路径启动的 LangSelector 均能在注销时退出。
验证不会清理其他用户的进程或名称相似的程序。

PMS: BUG-380095

Summary by Sourcery

Clean up LangSelector processes from both supported paths during logout to prevent stale notification translations.

Bug Fixes:

Ensure logout terminates LangSelector processes launched from both legacy and current executable paths, preventing stale session languages from affecting subsequent notifications.

Enhancements:

Restrict LangSelector cleanup to the current user and anchor executable matching to avoid terminating unrelated processes.

deepin-ci-robot · 2026-10-20T06:28:46Z

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: 52cyb

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sourcery-ai · 2026-10-20T06:28:48Z

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Updates logout cleanup so it terminates LangSelector processes launched from either the legacy /usr/lib/deepin-daemon path or the actual /usr/libexec/deepin path, preventing stale locale and translation state from surviving into a new session without affecting other users or similarly named programs.

Sequence diagram for logout LangSelector cleanup

sequenceDiagram
    participant SessionManager
    participant ProcessTable
    participant LangSelector

    SessionManager->>ProcessTable: stopLangSelector()
    ProcessTable->>ProcessTable: Match current UID with anchored LangSelector paths
    ProcessTable-->>SessionManager: Select legacy or actual path
    SessionManager->>LangSelector: Terminate matched process

File-Level Changes

Change	Details	Files
Expand logout-time LangSelector process matching to cover both the legacy compatibility entry point and the relocated executable while preserving user and command-boundary safeguards.	Match processes owned by the current UID. Anchor the command path at the beginning and constrain it to the two supported LangSelector locations. Require whitespace or end-of-command after the executable name to avoid similarly named process matches.	`src/dde-session/impl/sessionmanager.cpp`

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deepin-bot · 2026-10-20T13:36:39Z

TAG Bot

New tag: 2.0.35
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #238

1. The executable moved to /usr/libexec/deepin/langselector. /usr/lib/deepin-daemon/langselector remains a compatible entry point, using a wrapper and security loader to launch the new executable. 2. Logout cleanup only matched the old path, missing the actual process. Surviving processes retained their startup locale and cached translations, causing notifications to use a previous session's language. 3. Temporarily match both paths during logout, restricted to the current user. Anchor the command path and program name to avoid false matches. Abnormal session exits and reactivation after cleanup remain uncovered. Log: Fix stale notification translations after changing session language Influence: 1. Switch between English, Simplified Chinese and Traditional Chinese; log out and back in, then verify notification language. 2. Verify LangSelector processes from either path terminate on logout. 3. Verify cleanup does not affect other users or similarly named programs. fix: 注销时兼容清理新旧路径的 LangSelector 进程 1. LangSelector 的真实二进制已迁移至 /usr/libexec/deepin/langselector，旧路径 /usr/lib/deepin-daemon/langselector 保留为兼容启动入口，通过 wrapper 和安全加载器启动新路径下的程序。 2. 原注销逻辑仅匹配旧路径，未覆盖新路径下的实际进程。残留进程保留启动时的语言环境和翻译缓存，导致新会话切换语言时，通知正文仍使用上一会话的语言。 3. 临时方案在注销时同时匹配新旧路径，兼容不同安装布局，保留当前用户限制，并限定命令行起始位置和程序名边界，避免误匹配其他进程。此方案暂不覆盖会话异常退出及清理后再次激活的情况。 Log: 修复切换会话语言后通知正文沿用旧语言的问题 Influence: 1. 验证英文、简体中文、繁体中文之间切换并重新登录后的通知语言。 2. 验证新旧路径启动的 LangSelector 均能在注销时退出。 3. 验证不会清理其他用户的进程或名称相似的程序。 PMS: BUG-380095

deepin-ci-robot · 2026-10-28T03:52:14Z

deepin pr auto review

🤖 AI 代码审查报告

总体评分： 100 分 (通过阈值: 70分)

📊 总体评价

项目	结果
审查结论	代码审查通过
评分详情	本次提交修复了 stopLangSelector() 函数仅匹配旧路径的问题，改用正则表达式同时匹配新旧两条 langselector 进程路径。代码改动简洁、注释完善、逻辑正确，四维度均无问题，无安全漏洞。正则表达式使用锚点和边界匹配确保精确匹配，避免误杀其他进程，整体质量优秀。

🔍 详细分析

1. 语法逻辑 ✅

评价： 语法正确，逻辑清晰 ✅ 通过

潜在问题：
✅ 未发现明显问题

建议： []

2. 代码质量 ✅

评价： 代码结构清晰，注释完整 ✅ 通过

潜在问题：
✅ 未发现明显问题

建议： []

3. 代码性能 ✅

评价： 性能良好，资源使用合理 ✅ 通过

潜在问题：
✅ 未发现明显问题

建议： []

4. 代码安全 🔒

评价： 存在0个安全漏洞 ✅ 通过

🔐 发现 0 个安全漏洞

安全漏洞详情：
✅ 未发现安全漏洞

建议： []

💡 改进建议代码示例

当前代码无需修复，实现正确。完整代码如下：
void SessionManager::stopLangSelector() {
    // TODO 待优化，可以跟随当前用户一同退出
    // 匹配新旧两条路径的 langselector 进程：
    // /usr/lib/deepin-daemon/langselector (旧兼容路径)
    // /usr/libexec/deepin/langselector (新实际路径)
    EXEC_COMMAND("pkill"
                 , QStringList()
                 << "-ef"
                 << "-u"
                 << QString::number(getuid())
                 << "^/usr/(lib/deepin-daemon|libexec/deepin)/langselector([[:space:]]|$)"
                 );
}

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sourcery-ai Bot reviewed Oct 20, 2026

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52cyb force-pushed the master branch 2 times, most recently from e2dab27 to 65c0296 Compare October 28, 2026 03:38

52cyb force-pushed the master branch from 65c0296 to 43a6a64 Compare October 28, 2026 03:39

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fix: clean up both LangSelector paths on logout - #237

fix: clean up both LangSelector paths on logout#237
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Sequence diagram for logout LangSelector cleanup

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Reviewer's Guide

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1. 语法逻辑 ✅

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