docs: README 中英双语、AGENTS.md 压缩、过期文档归档标记
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- README.md 增加中英文切换，新增 README.en.md 全译；修正测试计数(19→36)与主机指纹超时(30s→120s) - AGENTS.md 压缩 53KB→25KB，保留全部硬规则与踩坑结论 - 五份已完成/过期文档（旧计划、设计稿、STATE 快照）打归档横幅 - superpowers 两份旧计划勾选收尾并归档
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# OpenTerminal
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[简体中文](README.md) | **English**
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A modern, open-source terminal app: local terminal + SSH remote sessions + split-pane management + theme/font customization. Built with Electron + React + TypeScript, developed from scratch.
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> Product website (GitHub Pages): <https://billowliu2.github.io/OpenTerminal/>, source in [`website/`](website/).
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## Screenshots
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| Multi-split parallel AI coding agents | Clean split view without background image |
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| Themes & personalization (background image / opacity / dim layer) | Lock screen (Ctrl+L, sessions stay alive under the mask) |
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| --- | --- |
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## Highlights
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- **Lightweight**: renderer dependencies are fully bundled and never duplicated into the installer — the app's asar is only 8.1MB, NSIS installer about 109MB; single-exe installer with in-app auto-update
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- **Privacy & security**: SSH credentials encrypted at rest via DPAPI, the renderer never touches plaintext; the lock-screen password stores only a scrypt-derived value; local paths for SFTP/ZMODEM must be granted through system dialogs, blocking constructed-path reads/writes
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- **Performance**: xterm.js WebGL rendering; keyword highlight engine measured at 0.02–0.05ms/KB (4–9ms for 200KB of mixed output); virtualized scrolling for large SFTP directories; debounced split-pane resizing so TUIs don't redraw repeatedly
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- **AI-coding friendly**: optimized for high-frequency TUIs like Kimi Code / Claude Code / Codex; IME candidate window follows the cursor for Chinese input
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- **Works in China**: update checks try GitHub first (following the system proxy), then automatically fall back to a direct-connect domestic channel, with a 30s overall timeout when both are unreachable
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- **Open & auditable**: MIT license; contracts for main/preload/renderer live in `src/shared/`, zero cross-module coupling; 36 offline tests covering storage, lock screen, highlighting, transfers and update fallback
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## Quick Start
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```bash
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npm install # skip if already installed
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npm run dev # development mode (hot reload)
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npm run build # production build to out/
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npm run typecheck # full type checking
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npm test # runs typecheck first, then rebuilds test bundles and runs 36 offline tests (see "Tests")
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```
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> If the Electron binary download fails: `ELECTRON_MIRROR=https://npmmirror.com/mirrors/electron/ node node_modules/electron/install.js`
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## Features
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**Terminal core**
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- Local terminal (node-pty; auto-detected Windows PowerShell / macOS zsh / Linux bash), advertises 256-color and truecolor support
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- xterm.js rendering: high-performance WebGL mode with automatic fallback to DOM on load failure/context loss
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- Session lifecycle: exit overlay shows the exit code; all sessions are reaped when the window closes
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- Search (Ctrl+F inline search bar, highlight all, n/N counters)
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- Clipboard (Ctrl+Shift+C/V, optional copy-on-selection)
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- Paste risk confirmation (multi-line/long text requires manual confirmation, can be disabled)
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- Font / size / weight / letter spacing / line height / scrollback / cursor style applied live
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- Keyword highlighting: 22 built-in rules (permissions, secret-leak alerts, paths, dangerous commands, delete/create operations, success/warning/error states, log levels, root prompts, exit codes, HTTP status codes, durations, percent progress, IPs, URLs, etc.). Status words are case-insensitive and cover symbols like ✓/✗; percentages / exit codes / HTTP codes / durations are colored by numeric bands. Rules support custom regex, "ignore case" and "numeric band" toggles, JSON import/export for sharing, live preview with test text in the editor, and a three-level highlight mode (all / basic / off — basic runs only key rules like errors/success/warnings/dangerous commands/secrets). Rules can be grouped by category (security/status/file/network/text/metric), with optional hit/latency stats (off by default, zero overhead when off), colors can follow the terminal theme palette, and rule sets can be created and bound per host (off by default; unbound hosts run all rules)
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**SSH remote sessions**
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- Built on ssh2: password / private key (file path or pasted content) / SSH Agent authentication
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- Connection manager: bookmark sidebar (grouped accordions), double-click to connect, create/edit/delete dialogs
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- Credential security: passwords/keys/passphrases encrypted via Electron safeStorage (DPAPI) before hitting disk — the renderer never sees plaintext; "ask for password at connect time" mode supported
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- Host fingerprint verification (known-hosts pinning): confirm on first connect, red alert on fingerprint change, auto-reject after 120s without response
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- Server hardware monitoring: real-time CPU / memory / disk / network panels (no agent scripts needed on the server)
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- SFTP file management: dual-pane browsing, drag-and-drop transfers, queue/progress/cancel, permission and owner modification
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- ZMODEM (rz/sz) file transfers
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- Session data plane fully unified with the local terminal (write/resize/close/exit events share the same channels)
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**Split panes & layouts**
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- dockview tab system: horizontal/vertical splits, drag to rearrange, tab context menu
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- Layout templates: save the current split as a template, apply with one click (sessions rebuilt automatically), deletable
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- Separate Terminal / SSH workspaces, never mixed
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**Productivity**
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- Broadcast input: select ≥2 terminals and type in sync; tabs show a broadcast badge
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- Command palette: sidebar "Commands" tab with History / Library pages; history deduplicated per session, library supports grouping and one-click run
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- Input suggestions: sourced from history + command library, Tab to accept, Enter always executes directly (can be disabled entirely in settings)
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- Session logging: manual start/stop, plain-text output
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- Shortcuts: Ctrl+=/-/0 font size, Ctrl+PgUp/PgDn switch panes, Ctrl+L instant lock (effective when a password is set), global show/hide (configurable)
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**Lock screen & privacy**
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- Locks via an opaque mask inside the main window (no second window); local/SSH sessions and transfer lists stay mounted underneath and resume on unlock
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- The password stores only a scrypt-derived value (`lock.json`, fresh random salt per write + timing-safe comparison); plaintext never hits disk; disabled entirely when no password is set
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- Locked state persists (`lock-state.json`) — still locked after tray quit, task-manager kill, or crash-restart
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- **Ctrl+L = instant lock**, works even inside the terminal; without a password set, Ctrl+L stays with the shell's clear-screen
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- Wrong passwords trigger a cooldown ladder (1s → 2s → 5s → 10s → 30s); failure count and cooldown also persist
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- Optional idle auto-lock (1/5/15/30/60 minutes) and lock-at-startup; repeated attempts during cooldown back off progressively
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- While locked, F5 / Ctrl+R / Ctrl+±0 / Ctrl+Shift+I/J/C are swallowed and the app menu is removed entirely, preventing menu-key bypass of the mask
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**Appearance & window**
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- 11 built-in themes (Dracula / One Half / Solarized / Gruvbox / Nord / Monokai / GitHub, etc.)
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- Custom theme editor: 16-color ANSI palette + foreground/background/cursor/selection colors with live preview
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- Window title bar and background follow the terminal theme
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- System tray: close button can be set to "ask every time / minimize to tray / quit"; switchable from the tray menu
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- Single instance: launching again brings up the existing window
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- Auto-update: GitHub first (via system proxy), falling back to the domestic Gitea channel (forced direct connection); each check has a 30s overall timeout; NSIS exe only (no MSI since v1.0.22)
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- Settings persistence (userData/settings.json, atomic writes) + real-time sync across windows
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**UI & language**
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- Four UI languages: 简体中文 / 繁體中文 / English / 日本語 (Settings → System → UI language; switches instantly and persists; antd built-in texts follow along)
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- Changelog bundled with the installer, readable offline on the About page, shown per current UI language (falls back to Simplified Chinese when a translation is missing)
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**Tests**
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`npm test` first runs `pretest` (= `npm run typecheck`), rebuilds the esbuild bundles, then runs 36 offline tests (no server or credentials needed — see the `test` script in `package.json` and `tests/`), roughly grouped as:
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- **Storage**: command library / SSH bookmarks / settings sanitizing (incl. legacy highlight preset upgrades) / broadcast / known hosts
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- **Lock screen**: password verifier, lock controller (cooldown ladder, persisted recovery, idle trigger), shortcut classifier
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- **Terminal & rendering**: highlight engine (word boundaries, chunked regression, ReDoS probes and validation gates), theme semantic vars & contrast, font stack, resize debounce, link rules, tab titles, terminal CWD, mode-button gesture
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- **Transfer & sessions**: SFTP timeout & eviction, ZMODEM both ways, ssh2 loopback and session routing e2e, server monitoring e2e
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- **Platform**: IPC guard, update channel fallback, log sanitizer & diagnostics, reserved accelerators, local path grants
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- Real-server tests (need `JD_HOST/JD_USER/JD_PASS`, **not** part of `npm test`, require network and real credentials): `tests/sftp-real.mjs`, `tests/sftp-chmod.mjs`
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## Architecture
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```
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src/
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├── shared/ # Contracts shared by main/renderer (IPC channels, settings, theme model)
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│ ├── ipc.ts # channel names + payload types
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│ ├── api.ts # window.api interface (the preload exposure surface)
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│ ├── settings.ts # AppSettings / defaults
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│ └── theme.ts # TerminalTheme / built-in themes
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├── main/ # main process
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│ ├── pty.ts # PTY session pool (node-pty) → broadcasts PTY_DATA/PTY_EXIT
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│ ├── settingsStore.ts # JSON persistence + deep-merge fallback
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│ ├── lockController.ts # lock state machine (cooldown ladder, idle trigger, serialized unlock)
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│ ├── lockStore.ts # lock password verifier (scrypt, no plaintext)
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│ ├── layouts.ts # layout template storage (userData/layouts/*.json)
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│ ├── tray.ts # system tray + close behavior
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│ └── ipc.ts # all ipcMain registrations
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├── preload/index.ts # contextBridge → window.api
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└── renderer/src/
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├── terminal/ # TerminalView: xterm wrapper (renderer/search/clipboard/paste confirm)
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├── workspace/ # dockview workspace: toolbar/splits/session lifecycle/layout templates
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├── settings/ # zustand store + settings dialog
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└── theme/editor/ # custom theme editor
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```
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Key design: **contracts first** — `src/shared/` is the single source of truth; main/preload/renderer each implement their side with zero cross-module coupling (terminal knows nothing about workspace, settings knows nothing about terminal).
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## Data Locations
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- Settings: `%APPDATA%/OpenTerminal/settings.json`
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- Layout templates: `%APPDATA%/OpenTerminal/layouts/*.json`
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- SSH connection bookmarks: `%APPDATA%/OpenTerminal/connections.json` (key fields DPAPI-encrypted)
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- Host fingerprints: `%APPDATA%/OpenTerminal/ssh_known_hosts.json`
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- Lock password verifier: `%APPDATA%/OpenTerminal/lock.json` (scrypt-derived, no plaintext)
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- Lock state & cooldown: `%APPDATA%/OpenTerminal/lock-state.json`
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## License
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[MIT](LICENSE)
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