From 0b122e2c76b1708208d3fb22e4edf75b29f82d39 Mon Sep 17 00:00:00 2001 From: Aamer Akhter Date: Sat, 26 Sep 2026 23:13:21 -0400 Subject: [PATCH 1/2] feat(preview): render XLSX spreadsheets in the file-preview overlay xlsx files were download-only. Add a read-only, virtualized preview (sheet tabs, number formats, merges, theme colours) parsed entirely in a browser Web Worker with exceljs and fflate, loaded only when a spreadsheet is opened. The workbook is checked against ZIP-bomb, entry and cell limits before exceljs loads; cell text is written with textContent, formulas are never evaluated and nothing referenced by the workbook is fetched. On the server xlsx only joins the existing allowlist and classification, with a 10 MB cap on ?preview=true. xls and ods stay download-only. --- CLAUDE.md | 4 +- config/test-suites.ts | 1 + package-lock.json | 1026 ++++++++++++++++- package.json | 2 + scripts/build.mjs | 4 + scripts/check-public-assets.mjs | 40 +- scripts/postinstall.js | 16 + scripts/prepare-spreadsheet-assets.mjs | 31 + src/attachment-registry.ts | 3 + src/types/tools.ts | 1 + src/web/public/constants.js | 4 +- src/web/public/index.html | 1 + src/web/public/mobile.css | 21 + src/web/public/panels-ui.js | 44 + src/web/public/spreadsheet-preview-worker.js | 220 ++++ src/web/public/spreadsheet-preview.js | 414 +++++++ src/web/public/spreadsheet-xlsx-core.js | 588 ++++++++++ src/web/public/styles.css | 130 +++ src/web/routes/file-routes.ts | 48 +- test/dependency-security.test.ts | 15 +- .../file-routes-attachment-path-guard.test.ts | 46 + test/routes/file-routes.test.ts | 44 +- test/spreadsheet-assets.test.ts | 84 ++ test/spreadsheet-preview-worker.test.ts | 237 ++++ test/spreadsheet-preview.browser.test.ts | 131 +++ test/spreadsheet-preview.test.ts | 339 ++++++ test/spreadsheet-xlsx-core.test.ts | 306 +++++ 27 files changed, 3776 insertions(+), 24 deletions(-) create mode 100644 scripts/prepare-spreadsheet-assets.mjs create mode 100644 src/web/public/spreadsheet-preview-worker.js create mode 100644 src/web/public/spreadsheet-preview.js create mode 100644 src/web/public/spreadsheet-xlsx-core.js create mode 100644 test/spreadsheet-assets.test.ts create mode 100644 test/spreadsheet-preview-worker.test.ts create mode 100644 test/spreadsheet-preview.browser.test.ts create mode 100644 test/spreadsheet-preview.test.ts create mode 100644 test/spreadsheet-xlsx-core.test.ts diff --git a/CLAUDE.md b/CLAUDE.md index c4a910ccf..712f6e179 100644 --- a/CLAUDE.md +++ b/CLAUDE.md @@ -284,7 +284,7 @@ Codeman is a Claude Code session manager with web interface and autonomous Ralph **Attachments** (live external document references; all wiring in `file-routes.ts`): a **registry** maps a stable `attachmentId` to a realpath-resolved, extension-allowlisted absolute path, so browser requests never carry arbitrary absolute paths. ⚠️ The **magic-link scanner** (`codeman://attach?...` in terminal output) is **prompt-injectable**, so its scan path is force-confined to the session workspace; a hostile prompt could otherwise exfiltrate arbitrary host files over SSE. The security gate is an extension **allowlist**, not a blocklist. `document-conversion-limiter.ts` caps converter spawns globally: without it, N large docs detected at once fork N multi-minute processes, which is a resource-exhaustion vector. → [architecture-invariants#attachments](docs/architecture-invariants.md#attachments) -**File-path links (terminal + chat)**: a path an agent prints is clickable on BOTH surfaces and opens the file-preview overlay. ⚠️ ONE pattern (`FILE_PATH_LINK_PATTERN` / `absoluteFilePathPattern()` in constants.js) feeds the xterm link provider AND `_linkifyFilePaths()`, a fresh instance per call (`lastIndex`). The chat linkifier walks TEXT NODES with DOM APIs, never rebuilds sanitized markup as a string. ⚠️ An out-of-workspace path goes through the ATTACHMENT routes (`POST /api/sessions/:id/attachments` with `notify: false`), never by widening `file-content`/`file-raw` or `file-stream-manager`'s `tail -f` allowlist. ⚠️ `TEXT_ATTACHMENT_EXTENSIONS` IS `EDITABLE_EXTENSIONS` (never a second list), and widening READ must never widen RUN: `html`/`htm`/`svg` stay download-only, other text is inert `text/plain`+`nosniff`. Media extensions are single-sourced in `attachment-registry.ts`. → [architecture-invariants#file-path-links-terminal--response-viewer](docs/architecture-invariants.md#file-path-links-terminal--response-viewer) +**File-path links (terminal + chat)**: a path an agent prints is clickable on BOTH surfaces and opens the file-preview overlay. ⚠️ ONE pattern (`FILE_PATH_LINK_PATTERN` / `absoluteFilePathPattern()` in constants.js) feeds the xterm link provider AND `_linkifyFilePaths()`, a fresh instance per call (`lastIndex`). The chat linkifier walks TEXT NODES with DOM APIs, never rebuilds sanitized markup as a string. ⚠️ An out-of-workspace path goes through the ATTACHMENT routes (`POST /api/sessions/:id/attachments` with `notify: false`), never by widening `file-content`/`file-raw` or `file-stream-manager`'s `tail -f` allowlist. ⚠️ `TEXT_ATTACHMENT_EXTENSIONS` IS `EDITABLE_EXTENSIONS` (never a second list), and widening READ must never widen RUN: `html`/`htm`/`svg` stay download-only, other text is inert `text/plain`+`nosniff`. Media extensions are single-sourced in `attachment-registry.ts`. ⚠️ **XLSX previews parse in the BROWSER**, never on the server: `spreadsheet-preview.js` fetches the raw route with `?preview=true` (413 above `MAX_XLSX_BROWSER_PREVIEW_BYTES`, 10 MB) and hands the bytes to `spreadsheet-preview-worker.js`, the only place the pinned `exceljs`/`fflate` vendor bundles load (never on page load). `admitXlsx()` caps the ZIP before ExcelJS runs, cell text goes through `textContent`, formulas are never evaluated. Bumping either package or editing the worker/core changes `SPREADSHEET_ASSET_VERSION`, which `npm run check:public-assets` pins. xls/ods stay download-only. → [architecture-invariants#file-path-links-terminal--response-viewer](docs/architecture-invariants.md#file-path-links-terminal--response-viewer) **Filesystem path picker** (Link Existing "Browse" + the mobile keyboard's `📁 Path` key): lazy one-directory browsing via `GET /api/filesystem/browse`, with `GET /api/filesystem/preview` for the tapped file. Inserts the path **without** Enter, so the prompt is never submitted; the sibling `⌫ All` key clears only the unsent prompt and must never send the agent's `/clear`. ⚠️ This is a **second file-serving surface and inherits neither the attachment confinement nor its ownership scoping** — it allowlists Home, `CASES_DIR`, `/mnt/d` and `CODEMAN_FILE_PICKER_ROOTS`, blocks sensitive trees, and rejects symlink escapes **after** `realpath`. ⚠️ The optional `sessionId` is an ownership boundary that must be `canAccessOwned`-checked by hand (it does not go through `findSessionOrFail`), and in multi-user mode a non-admin gets only their own `userSpacePath` as a root: per-user spaces live INSIDE `homedir()`, so a `Home` root exposes every other user's workspace. Previews go through the same global conversion limiter, and Markdown/TXT/JSON are served as inert `text/plain`. → [architecture-invariants#filesystem-path-picker](docs/architecture-invariants.md#filesystem-path-picker) @@ -312,7 +312,7 @@ Codeman is a Claude Code session manager with web interface and autonomous Ralph ### Frontend -Frontend JS modules have `@fileoverview` with `@dependency`/`@loadorder` tags. Load order: `constants.js`(1) → `i18n.js`(1.5) → `mobile-handlers.js`(2) → `voice-input.js`(3) → `notification-manager.js`(4) → `keyboard-accessory.js`(5) → `input-cjk.js`(5.5) → `terminal-keycode229-recovery.js`(5.55) → `sanitize-html.js`(5.6) → `app.js`(6) → `tab-rail-resize.js`(6.5) → `terminal-ui.js`(7) → `terminal-split.js`(7.5) → `respawn-ui.js`(8) → `ralph-panel.js`(9) → `orchestrator-panel.js`(9.5) → `cron-ui.js`(9.7) → `settings-ui.js`(10) → `panels-ui.js`(11) → `readmymind-ui.js`(11.3) → `ultracode-panel.js`(11.5) → `approvals-ui.js`(11.6) → `reboot-restore-ui.js`(11.65) → `admin-ui.js`(11.7) → `session-ui.js`(12) → `host-wake-ui.js`(12.2) → `webview-tabs.js`(12.5) → `mobile-overview.js`(12.55) → `home-sessions.js`(12.56) → `entrance-animations.js`(12.6) → `ralph-wizard.js`(13) → `api-client.js`(14) → `subagent-windows.js`(15) → `ultracode-windows.js`(15.5) → `session-lineage.js`(15.6) → `image-input.js`(16). `i18n.js` translates static + newly inserted application DOM while skipping terminal/response/file/user-name surfaces; `input-cjk.js` handles CJK IME composition via an always-visible textarea below the terminal (`window.cjkActive` blocks xterm's onData). `terminal-keycode229-recovery.js` forwards a committed `input` event that xterm's `_inputEvent` guard drops (Chrome-on-Android soft keyboards send `composed: true` after a keydown), and only when xterm emitted no canonical data for that keystroke. ⚠️ **That decision is settled at the NEXT keydown as well as on its own zero-delay timer** (#441): the drain runs from xterm's custom key handler, which fires BEFORE xterm processes that key, so a soft keyboard that commits the last character and sends Enter in one InputConnection transaction puts the character on the wire ahead of the `\r`. On the timer alone that character is not merely late, it is LOST: xterm emits the `\r` first and bumps the canonical counter past the candidate's snapshot, so the candidate stands down (measured, `hell\r` where the user typed `hello`). The trade is that a keydown decides with less evidence than the timer did, since xterm's own keyCode-229 rescue has not run yet; that is safe for Enter, which clears the textarea so the pending diff emits nothing. Ordering is pinned by `test/terminal-keycode229-recovery.browser.test.ts`, which the CI gate does NOT run. +Frontend JS modules have `@fileoverview` with `@dependency`/`@loadorder` tags. Load order: `constants.js`(1) → `i18n.js`(1.5) → `mobile-handlers.js`(2) → `voice-input.js`(3) → `notification-manager.js`(4) → `keyboard-accessory.js`(5) → `input-cjk.js`(5.5) → `terminal-keycode229-recovery.js`(5.55) → `sanitize-html.js`(5.6) → `app.js`(6) → `tab-rail-resize.js`(6.5) → `terminal-ui.js`(7) → `terminal-split.js`(7.5) → `respawn-ui.js`(8) → `ralph-panel.js`(9) → `orchestrator-panel.js`(9.5) → `cron-ui.js`(9.7) → `settings-ui.js`(10) → `panels-ui.js`(11) → `readmymind-ui.js`(11.3) → `ultracode-panel.js`(11.5) → `approvals-ui.js`(11.6) → `reboot-restore-ui.js`(11.65) → `admin-ui.js`(11.7) → `session-ui.js`(12) → `host-wake-ui.js`(12.2) → `webview-tabs.js`(12.5) → `mobile-overview.js`(12.55) → `home-sessions.js`(12.56) → `entrance-animations.js`(12.6) → `ralph-wizard.js`(13) → `api-client.js`(14) → `subagent-windows.js`(15) → `ultracode-windows.js`(15.5) → `session-lineage.js`(15.6) → `image-input.js`(16) → `spreadsheet-preview.js`(16.5). `i18n.js` translates static + newly inserted application DOM while skipping terminal/response/file/user-name surfaces; `input-cjk.js` handles CJK IME composition via an always-visible textarea below the terminal (`window.cjkActive` blocks xterm's onData). `terminal-keycode229-recovery.js` forwards a committed `input` event that xterm's `_inputEvent` guard drops (Chrome-on-Android soft keyboards send `composed: true` after a keydown), and only when xterm emitted no canonical data for that keystroke. ⚠️ **That decision is settled at the NEXT keydown as well as on its own zero-delay timer** (#441): the drain runs from xterm's custom key handler, which fires BEFORE xterm processes that key, so a soft keyboard that commits the last character and sends Enter in one InputConnection transaction puts the character on the wire ahead of the `\r`. On the timer alone that character is not merely late, it is LOST: xterm emits the `\r` first and bumps the canonical counter past the candidate's snapshot, so the candidate stands down (measured, `hell\r` where the user typed `hello`). The trade is that a keydown decides with less evidence than the timer did, since xterm's own keyCode-229 rescue has not run yet; that is safe for Enter, which clears the textarea so the pending diff emits nothing. Ordering is pinned by `test/terminal-keycode229-recovery.browser.test.ts`, which the CI gate does NOT run. **Entrance animations** (`entrance-animations.js`, all OFF by default): opt-in animations for tabs, terminal, windows and connection lines, chosen via `data-tab-anim` / `data-term-anim` / `data-win-anim` / `data-line-anim` on ``; the default `legacy` theme short-circuits every hook. ⚠️ Tabs and lines are destroyed mid-animation on re-render, so re-apply to the fresh element by id with a negative `animation-delay` (resume, never restart). ⚠️ Terminal-pane styles may animate only transform / opacity / clip-path (anything else resizes the PTY via FitAddon); `blur` is the ONE sanctioned `filter` exception, do not generalise it. ⚠️ Line glow lives in `--line-glow` so blur keyframes interpolate. Persisted per-device in `codeman:*Anim` localStorage keys, never in `SettingsUpdateSchema`; lab at `?animlab=1`. Test: `test/entrance-animations.test.ts`. → [architecture-invariants#entrance-animations](docs/architecture-invariants.md#entrance-animations) diff --git a/config/test-suites.ts b/config/test-suites.ts index 9f3ed295a..76d7f94e1 100644 --- a/config/test-suites.ts +++ b/config/test-suites.ts @@ -33,6 +33,7 @@ export const BROWSER_TEST_GLOBS = [ 'test/split-pane-terminal.browser.test.ts', 'test/split-pane-orchestration.browser.test.ts', 'test/split-pane-auto-collapse.browser.test.ts', + 'test/spreadsheet-preview.browser.test.ts', ]; /** diff --git a/package-lock.json b/package-lock.json index 148417943..dee5eaa2f 100644 --- a/package-lock.json +++ b/package-lock.json @@ -59,6 +59,8 @@ "agent-browser": "^0.6.0", "esbuild": "^0.27.3", "eslint": "^9.0.0", + "exceljs": "4.4.0", + "fflate": "0.8.2", "pixelmatch": "^6.0.0", "playwright": "^1.58.0", "pngjs": "^7.0.0", @@ -1192,6 +1194,51 @@ "node": "^18.18.0 || ^20.9.0 || >=21.1.0" } }, + "node_modules/@fast-csv/format": { + "version": "4.3.5", + "resolved": "https://registry.npmjs.org/@fast-csv/format/-/format-4.3.5.tgz", + "integrity": "sha512-8iRn6QF3I8Ak78lNAa+Gdl5MJJBM5vRHivFtMRUWINdevNo00K7OXxS2PshawLKTejVwieIlPmK5YlLu6w4u8A==", + "dev": true, + "license": "MIT", + "dependencies": { + "@types/node": "^14.0.1", + "lodash.escaperegexp": "^4.1.2", + "lodash.isboolean": "^3.0.3", + "lodash.isequal": "^4.5.0", + "lodash.isfunction": "^3.0.9", + "lodash.isnil": "^4.0.0" + } + }, + "node_modules/@fast-csv/format/node_modules/@types/node": { + "version": "14.18.63", + "resolved": "https://registry.npmjs.org/@types/node/-/node-14.18.63.tgz", + "integrity": "sha512-fAtCfv4jJg+ExtXhvCkCqUKZ+4ok/JQk01qDKhL5BDDoS3AxKXhV5/MAVUZyQnSEd2GT92fkgZl0pz0Q0AzcIQ==", + "dev": true, + "license": "MIT" + }, + "node_modules/@fast-csv/parse": { + "version": "4.3.6", + "resolved": "https://registry.npmjs.org/@fast-csv/parse/-/parse-4.3.6.tgz", + "integrity": "sha512-uRsLYksqpbDmWaSmzvJcuApSEe38+6NQZBUsuAyMZKqHxH0g1wcJgsKUvN3WC8tewaqFjBMMGrkHmC+T7k8LvA==", + "dev": true, + "license": "MIT", + "dependencies": { + "@types/node": "^14.0.1", + "lodash.escaperegexp": "^4.1.2", + "lodash.groupby": "^4.6.0", + "lodash.isfunction": "^3.0.9", + "lodash.isnil": "^4.0.0", + "lodash.isundefined": "^3.0.1", + "lodash.uniq": "^4.5.0" + } + }, + "node_modules/@fast-csv/parse/node_modules/@types/node": { + "version": "14.18.63", + "resolved": "https://registry.npmjs.org/@types/node/-/node-14.18.63.tgz", + "integrity": "sha512-fAtCfv4jJg+ExtXhvCkCqUKZ+4ok/JQk01qDKhL5BDDoS3AxKXhV5/MAVUZyQnSEd2GT92fkgZl0pz0Q0AzcIQ==", + "dev": true, + "license": "MIT" + }, "node_modules/@fastify/accept-negotiator": { "version": "2.0.1", "resolved": "https://registry.npmjs.org/@fastify/accept-negotiator/-/accept-negotiator-2.0.1.tgz", @@ -4803,6 +4850,134 @@ "node": ">= 8" } }, + "node_modules/archiver": { + "version": "5.3.2", + "resolved": "https://registry.npmjs.org/archiver/-/archiver-5.3.2.tgz", + "integrity": "sha512-+25nxyyznAXF7Nef3y0EbBeqmGZgeN/BxHX29Rs39djAfaFalmQ89SE6CWyDCHzGL0yt/ycBtNOmGTW0FyGWNw==", + "dev": true, + "license": "MIT", + "dependencies": { + "archiver-utils": "^2.1.0", + "async": "^3.2.4", + "buffer-crc32": "^0.2.1", + "readable-stream": "^3.6.0", + "readdir-glob": "^1.1.2", + "tar-stream": "^2.2.0", + "zip-stream": "^4.1.0" + }, + "engines": { + "node": ">= 10" + } + }, + "node_modules/archiver-utils": { + "version": "2.1.0", + "resolved": "https://registry.npmjs.org/archiver-utils/-/archiver-utils-2.1.0.tgz", + "integrity": "sha512-bEL/yUb/fNNiNTuUz979Z0Yg5L+LzLxGJz8x79lYmR54fmTIb6ob/hNQgkQnIUDWIFjZVQwl9Xs356I6BAMHfw==", + "dev": true, + "license": "MIT", + "dependencies": { + "glob": "^7.1.4", + "graceful-fs": "^4.2.0", + "lazystream": "^1.0.0", + "lodash.defaults": "^4.2.0", + "lodash.difference": "^4.5.0", + "lodash.flatten": "^4.4.0", + "lodash.isplainobject": "^4.0.6", + "lodash.union": "^4.6.0", + "normalize-path": "^3.0.0", + "readable-stream": "^2.0.0" + }, + "engines": { + "node": ">= 6" + } + }, + "node_modules/archiver-utils/node_modules/glob": { + "version": "7.2.3", + "resolved": "https://registry.npmjs.org/glob/-/glob-7.2.3.tgz", + "integrity": "sha512-nFR0zLpU2YCaRxwoCJvL6UvCH2JFyFVIvwTLsIf21AuHlMskA1hhTdk+LlYJtOlYt9v6dvszD2BGRqBL+iQK9Q==", + "deprecated": "Old versions of glob are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. 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supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exorbitant rates) by contacting i@izs.me", + "dev": true, + "license": "ISC", + "dependencies": { + "fs.realpath": "^1.0.0", + "inflight": "^1.0.4", + "inherits": "2", + "minimatch": "^3.1.1", + "once": "^1.3.0", + "path-is-absolute": "^1.0.0" + }, + "engines": { + "node": "*" + }, + "funding": { + "url": "https://github.com/sponsors/isaacs" + } + }, "node_modules/rolldown": { "version": "1.0.3", "resolved": "https://registry.npmjs.org/rolldown/-/rolldown-1.0.3.tgz", @@ -10043,6 +10894,13 @@ "integrity": "sha512-oeM1lpU/UvhTxw+g3cIfxXHyJRc/uidd3yK1P242gzHds0udQBYzs3y8j4gCCW+ZJ7ad0yctld8RYO+bdurlvw==", "license": "MIT" }, + "node_modules/setimmediate": { + "version": "1.0.5", + "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.5.tgz", + "integrity": "sha512-MATJdZp8sLqDl/68LfQmbP8zKPLQNV6BIZoIgrscFDQ+RsvK/BxeDQOgyxKKoh0y/8h3BqVFnCqQ/gd+reiIXA==", + "dev": true, + "license": "MIT" + }, "node_modules/setprototypeof": { "version": "1.2.0", "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz", @@ -10775,6 +11633,16 @@ "node": ">=14.0.0" } }, + "node_modules/tmp": { + "version": "0.2.7", + "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.2.7.tgz", + "integrity": "sha512-e0votIpp4Uo2AJYSzVHV6xCcawuiez3DzqDAbrTc3YxBkplN6e+dM13ZeIcZnDg/QpSuU2zfZ3rzwY8ukEnaXw==", + "dev": true, + "license": "MIT", + "engines": { + "node": ">=14.14" + } + }, "node_modules/to-fast-properties": { "version": "2.0.0", "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz", @@ -10854,6 +11722,16 @@ "node": ">=18" } }, + "node_modules/traverse": { + "version": "0.3.9", + "resolved": "https://registry.npmjs.org/traverse/-/traverse-0.3.9.tgz", + "integrity": "sha512-iawgk0hLP3SxGKDfnDJf8wTz4p2qImnyihM5Hh/sGvQ3K37dPi/w8sRhdNIxYA1TwFwc5mDhIJq+O0RsvXBKdQ==", + "dev": true, + "license": "MIT/X11", + "engines": { + "node": "*" + } + }, "node_modules/tree-kill": { "version": "1.2.2", "resolved": "https://registry.npmjs.org/tree-kill/-/tree-kill-1.2.2.tgz", @@ -11578,6 +12456,58 @@ "node": ">= 4.0.0" } }, + "node_modules/unzipper": { + "version": "0.10.14", + "resolved": "https://registry.npmjs.org/unzipper/-/unzipper-0.10.14.tgz", + "integrity": "sha512-ti4wZj+0bQTiX2KmKWuwj7lhV+2n//uXEotUmGuQqrbVZSEGFMbI68+c6JCQ8aAmUWYvtHEz2A8K6wXvueR/6g==", + "dev": true, + "license": "MIT", + "dependencies": { + "big-integer": "^1.6.17", + "binary": "~0.3.0", + "bluebird": "~3.4.1", + "buffer-indexof-polyfill": "~1.0.0", + "duplexer2": "~0.1.4", + "fstream": "^1.0.12", + "graceful-fs": "^4.2.2", + "listenercount": "~1.0.1", + "readable-stream": "~2.3.6", + "setimmediate": "~1.0.4" + } + }, + "node_modules/unzipper/node_modules/readable-stream": { + "version": "2.3.8", + "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.8.tgz", + "integrity": "sha512-8p0AUk4XODgIewSi0l8Epjs+EVnWiK7NoDIEGU0HhE7+ZyY8D1IMY7odu5lRrFXGg71L15KG8QrPmum45RTtdA==", + "dev": true, + "license": "MIT", + "dependencies": { + "core-util-is": "~1.0.0", + "inherits": "~2.0.3", + "isarray": "~1.0.0", + "process-nextick-args": "~2.0.0", + "safe-buffer": "~5.1.1", + "string_decoder": "~1.1.1", + "util-deprecate": "~1.0.1" + } + }, + "node_modules/unzipper/node_modules/safe-buffer": { + "version": "5.1.2", + "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz", + "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==", + "dev": true, + "license": "MIT" + }, + "node_modules/unzipper/node_modules/string_decoder": { + "version": "1.1.1", + "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz", + "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==", + "dev": true, + "license": "MIT", + "dependencies": { + "safe-buffer": "~5.1.0" + } + }, "node_modules/update-browserslist-db": { "version": "1.2.3", "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.2.3.tgz", @@ -12244,6 +13174,80 @@ "url": "https://github.com/sponsors/sindresorhus" } }, + "node_modules/zip-stream": { + "version": "4.1.1", + "resolved": "https://registry.npmjs.org/zip-stream/-/zip-stream-4.1.1.tgz", + "integrity": "sha512-9qv4rlDiopXg4E69k+vMHjNN63YFMe9sZMrdlvKnCjlCRWeCBswPPMPUfx+ipsAWq1LXHe70RcbaHdJJpS6hyQ==", + "dev": true, + "license": "MIT", + "dependencies": { + "archiver-utils": "^3.0.4", + "compress-commons": "^4.1.2", + "readable-stream": "^3.6.0" + }, + "engines": { + "node": ">= 10" + } + }, + "node_modules/zip-stream/node_modules/archiver-utils": { + "version": "3.0.4", + "resolved": "https://registry.npmjs.org/archiver-utils/-/archiver-utils-3.0.4.tgz", + "integrity": "sha512-KVgf4XQVrTjhyWmx6cte4RxonPLR9onExufI1jhvw/MQ4BB6IsZD5gT8Lq+u/+pRkWna/6JoHpiQioaqFP5Rzw==", + "dev": true, + "license": "MIT", + "dependencies": { + "glob": "^7.2.3", + "graceful-fs": "^4.2.0", + "lazystream": "^1.0.0", + "lodash.defaults": "^4.2.0", + "lodash.difference": "^4.5.0", + "lodash.flatten": "^4.4.0", + "lodash.isplainobject": "^4.0.6", + "lodash.union": "^4.6.0", + "normalize-path": "^3.0.0", + "readable-stream": "^3.6.0" + }, + "engines": { + "node": ">= 10" + } + }, + "node_modules/zip-stream/node_modules/glob": { + "version": "7.2.3", + "resolved": "https://registry.npmjs.org/glob/-/glob-7.2.3.tgz", + "integrity": "sha512-nFR0zLpU2YCaRxwoCJvL6UvCH2JFyFVIvwTLsIf21AuHlMskA1hhTdk+LlYJtOlYt9v6dvszD2BGRqBL+iQK9Q==", + "deprecated": "Old versions of glob are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exorbitant rates) by contacting i@izs.me", + "dev": true, + "license": "ISC", + "dependencies": { + "fs.realpath": "^1.0.0", + "inflight": "^1.0.4", + "inherits": "2", + "minimatch": "^3.1.1", + "once": "^1.3.0", + "path-is-absolute": "^1.0.0" + }, + "engines": { + "node": "*" + }, + "funding": { + "url": "https://github.com/sponsors/isaacs" + } + }, + "node_modules/zip-stream/node_modules/readable-stream": { + "version": "3.6.2", + "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz", + "integrity": "sha512-9u/sniCrY3D5WdsERHzHE4G2YCXqoG5FTHUiCC4SIbr6XcLZBY05ya9EKjYek9O5xOAwjGq+1JdGBAS7Q9ScoA==", + "dev": true, + "license": "MIT", + "dependencies": { + "inherits": "^2.0.3", + "string_decoder": "^1.1.1", + "util-deprecate": "^1.0.1" + }, + "engines": { + "node": ">= 6" + } + }, "node_modules/zod": { "version": "4.4.3", "resolved": "https://registry.npmjs.org/zod/-/zod-4.4.3.tgz", diff --git a/package.json b/package.json index c51e42cc2..b89313219 100644 --- a/package.json +++ b/package.json @@ -127,6 +127,8 @@ "agent-browser": "^0.6.0", "esbuild": "^0.27.3", "eslint": "^9.0.0", + "exceljs": "4.4.0", + "fflate": "0.8.2", "pixelmatch": "^6.0.0", "playwright": "^1.58.0", "pngjs": "^7.0.0", diff --git a/scripts/build.mjs b/scripts/build.mjs index 2ab8ecd5a..15e42518c 100644 --- a/scripts/build.mjs +++ b/scripts/build.mjs @@ -49,6 +49,9 @@ run('xterm-addon-serialize', 'npx esbuild node_modules/@xterm/addon-serialize/li run('xterm-addon-webgl', 'cp node_modules/@xterm/addon-webgl/lib/addon-webgl.js dist/web/public/vendor/xterm-addon-webgl.min.js'); run('xterm-addon-unicode11', 'npx esbuild node_modules/@xterm/addon-unicode11/lib/addon-unicode11.js --minify --outfile=dist/web/public/vendor/xterm-addon-unicode11.min.js'); run('xterm-zerolag-input', 'npx esbuild packages/xterm-zerolag-input/src/zerolag-input-addon.ts --bundle --minify --format=iife --global-name=XtermZerolagInput --outfile=dist/web/public/vendor/xterm-zerolag-input.js'); +// XLSX preview parser bundles: loaded only inside spreadsheet-preview-worker.js, +// never by the page (see scripts/prepare-spreadsheet-assets.mjs). +run('spreadsheet preview vendors', 'node scripts/prepare-spreadsheet-assets.mjs dist/web/public/vendor'); // Append global aliases so app.js can use `new LocalEchoOverlay(terminal)` appendFileSync( @@ -125,6 +128,7 @@ console.log('\n[build] content-hash cache busting'); 'api-client.js', 'subagent-windows.js', 'image-input.js', + 'spreadsheet-preview.js', 'vendor/xterm-zerolag-input.js', 'vendor/xterm-predictive-echo.js', ]; diff --git a/scripts/check-public-assets.mjs b/scripts/check-public-assets.mjs index a9b5daebf..3ef9ab971 100644 --- a/scripts/check-public-assets.mjs +++ b/scripts/check-public-assets.mjs @@ -1,7 +1,8 @@ #!/usr/bin/env node import { execFileSync } from 'node:child_process'; -import { readdirSync, readFileSync } from 'node:fs'; +import { createHash } from 'node:crypto'; +import { existsSync, readdirSync, readFileSync } from 'node:fs'; import { dirname, extname, join, relative, resolve } from 'node:path'; import { fileURLToPath } from 'node:url'; @@ -9,6 +10,10 @@ const repoRoot = resolve(dirname(fileURLToPath(import.meta.url)), '..'); const publicRoot = resolve(repoRoot, 'src/web/public'); const prettierBin = resolve(repoRoot, 'node_modules/.bin/prettier'); const checkedExtensions = new Set(['.js', '.css', '.html', '.json']); +// Combined budget for the two XLSX-preview vendor bundles (exceljs + fflate). +// They load only inside the spreadsheet worker, but a dependency bump that +// balloons them should be a deliberate decision, not a silent one. +const SPREADSHEET_VENDOR_MAX_BYTES = 1_100_000; function collectTextAssets(dir) { const files = []; @@ -35,6 +40,39 @@ function findNullByte(buffer) { const files = collectTextAssets(publicRoot); const failures = []; +// The spreadsheet worker is a stable (unhashed) URL, cache-busted by the +// SPREADSHEET_ASSET_VERSION token in spreadsheet-preview.js. That token must be +// the content hash of everything the worker loads, or a deploy can pair a new +// worker with a stale cached core/vendor file (static assets are cached 1y). +const spreadsheetWorker = join(publicRoot, 'spreadsheet-preview-worker.js'); +const spreadsheetCore = join(publicRoot, 'spreadsheet-xlsx-core.js'); +const spreadsheetEntry = join(publicRoot, 'spreadsheet-preview.js'); +const spreadsheetVendors = [join(publicRoot, 'vendor', 'exceljs.min.js'), join(publicRoot, 'vendor', 'fflate.min.js')]; + +if ([spreadsheetWorker, spreadsheetCore, spreadsheetEntry, ...spreadsheetVendors].every(existsSync)) { + const vendorBytes = spreadsheetVendors.reduce((total, file) => total + readFileSync(file).length, 0); + if (vendorBytes > SPREADSHEET_VENDOR_MAX_BYTES) { + failures.push(`Spreadsheet vendor bundles exceed ${SPREADSHEET_VENDOR_MAX_BYTES} bytes (${vendorBytes} bytes)`); + } + + const expectedVersion = createHash('sha256') + .update(readFileSync(spreadsheetWorker)) + .update(readFileSync(spreadsheetCore)) + .update(readFileSync(spreadsheetVendors[0])) + .update(readFileSync(spreadsheetVendors[1])) + .digest('hex') + .slice(0, 12); + const entrySource = readFileSync(spreadsheetEntry, 'utf8'); + const actualVersion = entrySource.match(/const SPREADSHEET_ASSET_VERSION = '([a-f0-9]+)'/)?.[1]; + if (actualVersion !== expectedVersion) { + failures.push( + `SPREADSHEET_ASSET_VERSION mismatch: expected ${expectedVersion}, found ${actualVersion || 'missing'}` + ); + } +} else { + failures.push('Spreadsheet preview assets are missing; run `node scripts/prepare-spreadsheet-assets.mjs`'); +} + for (const file of files) { const rel = relative(repoRoot, file); const data = readFileSync(file); diff --git a/scripts/postinstall.js b/scripts/postinstall.js index 02d23f595..9991bccdb 100644 --- a/scripts/postinstall.js +++ b/scripts/postinstall.js @@ -341,6 +341,22 @@ if (isGlobalInstall) { } } +// ---------------------------------------------------------------------------- +// 4a. Copy the XLSX preview's browser bundles (exceljs, fflate) into +// src/web/public/vendor/ for dev mode. The build does the same into dist/. +// ---------------------------------------------------------------------------- + +if (!isGlobalInstall) { + try { + execSync(`node "${join(import.meta.dirname, 'prepare-spreadsheet-assets.mjs')}"`, { stdio: 'pipe' }); + console.log(colors.green('✓ Spreadsheet preview vendor files prepared')); + } catch (err) { + hasWarnings = true; + console.log(colors.yellow('⚠ Failed to prepare spreadsheet preview vendor files')); + console.log(colors.dim(` ${err.message}`)); + } +} + // ---------------------------------------------------------------------------- // 4b. Fetch gesture-overlay runtime assets (MediaPipe wasm + model) for dev mode // (src/web/public/gesture/). Opt-in feature (CODEMAN_GESTURE=1); non-fatal. diff --git a/scripts/prepare-spreadsheet-assets.mjs b/scripts/prepare-spreadsheet-assets.mjs new file mode 100644 index 000000000..dafa2a07c --- /dev/null +++ b/scripts/prepare-spreadsheet-assets.mjs @@ -0,0 +1,31 @@ +#!/usr/bin/env node +/** + * Copy the XLSX preview's browser bundles (exceljs, fflate) into a public vendor + * dir. Run by postinstall for dev (src/web/public/vendor, gitignored) and by + * build.mjs for prod (dist/web/public/vendor). Both packages are pinned exactly + * in package.json, and check-public-assets.mjs hashes the output into + * SPREADSHEET_ASSET_VERSION (the worker's cache-bust token), so a version bump + * that changes the bytes fails that check until the token is refreshed. + * Source-map comments are stripped: the maps are not shipped. + */ + +import { createRequire } from 'node:module'; +import { mkdirSync, readFileSync, writeFileSync } from 'node:fs'; +import { dirname, join, resolve } from 'node:path'; + +const require = createRequire(import.meta.url); +const outputDir = resolve(process.argv[2] || join(import.meta.dirname, '..', 'src', 'web', 'public', 'vendor')); +const excelSource = require.resolve('exceljs/dist/exceljs.min.js'); +const fflateSource = join(dirname(require.resolve('fflate')), '..', 'umd', 'index.js'); + +function copyBrowserBundle(source, outputName) { + const content = readFileSync(source, 'utf8').replace(/\n?\/\/# sourceMappingURL=.*(?:\n|$)/g, '\n'); + if (/sourceMappingURL/.test(content)) { + throw new Error(`Failed to strip sourceMappingURL from ${outputName}`); + } + writeFileSync(join(outputDir, outputName), content, 'utf8'); +} + +mkdirSync(outputDir, { recursive: true }); +copyBrowserBundle(excelSource, 'exceljs.min.js'); +copyBrowserBundle(fflateSource, 'fflate.min.js'); diff --git a/src/attachment-registry.ts b/src/attachment-registry.ts index 261fda679..2d47f59d3 100644 --- a/src/attachment-registry.ts +++ b/src/attachment-registry.ts @@ -62,6 +62,8 @@ const SUPPORTED_ATTACHMENT_EXTENSIONS = new Set([ 'pdf', 'docx', 'pptx', + // Previewed client-side (spreadsheet-preview-worker.js); served raw like the rest. + 'xlsx', 'md', 'txt', ...VIDEO_ATTACHMENT_EXTENSIONS, @@ -154,6 +156,7 @@ export function getAttachmentType(extension: string): AttachmentDetectedType { if (AUDIO_ATTACHMENT_EXTENSIONS.has(normalized)) return 'audio'; if (normalized === 'pdf') return 'pdf'; if (normalized === 'pptx') return 'presentation'; + if (normalized === 'xlsx') return 'spreadsheet'; if (normalized === 'md') return 'markdown'; // Everything else in the text family reads as text, including code and // config: the card and the preview both treat it as a plain-text file. diff --git a/src/types/tools.ts b/src/types/tools.ts index 85a974ec9..5ce83146d 100644 --- a/src/types/tools.ts +++ b/src/types/tools.ts @@ -70,6 +70,7 @@ export type AttachmentDetectedType = | 'pdf' | 'document' | 'presentation' + | 'spreadsheet' | 'markdown' | 'text'; diff --git a/src/web/public/constants.js b/src/web/public/constants.js index 6f9d85c83..4ba8737f3 100644 --- a/src/web/public/constants.js +++ b/src/web/public/constants.js @@ -1458,7 +1458,7 @@ function computeRewriteScrollLine(input) { * a `/g` regex, so {@link absoluteFilePathPattern} mints a fresh one per call. */ const FILE_PATH_LINK_PATTERN = - /(\/(?:home|Users|tmp|var|private|opt|mnt|srv|media|data|workspace)\/[^\s"'<>|;&\n\x00-\x1f]*\.(?:log|txt|json|md|ya?ml|csv|xml|sh|py|tsx|ts|jsx|js|mjs|cjs|css|html|toml|ini|sql|png|jpe?g|gif|webp|bmp|svg|pdf|docx|pptx|mp4|webm|mov|mp3|wav))\b/g; + /(\/(?:home|Users|tmp|var|private|opt|mnt|srv|media|data|workspace)\/[^\s"'<>|;&\n\x00-\x1f]*\.(?:log|txt|json|md|ya?ml|csv|xml|sh|py|tsx|ts|jsx|js|mjs|cjs|css|html|toml|ini|sql|png|jpe?g|gif|webp|bmp|svg|pdf|docx|pptx|xlsx|mp4|webm|mov|mp3|wav))\b/g; /** A fresh, zero-state instance of {@link FILE_PATH_LINK_PATTERN}. */ function absoluteFilePathPattern() { @@ -1476,7 +1476,7 @@ function absoluteFilePathPattern() { * file in /tmp played fine. test/media-extension-parity.test.ts pins the sync. */ const FILE_PREVIEW_EXTENSIONS = new Set( - ('png jpg jpeg gif webp bmp svg pdf docx pptx mp4 webm mov m4v ogv mp3 wav ogg oga m4a aac flac opus').split(' ') + ('png jpg jpeg gif webp bmp svg pdf docx pptx xlsx mp4 webm mov m4v ogv mp3 wav ogg oga m4a aac flac opus').split(' ') ); /** Whether a path's extension is one {@link FILE_PREVIEW_EXTENSIONS} covers. */ diff --git a/src/web/public/index.html b/src/web/public/index.html index a5009b53f..bea9a5f7e 100644 --- a/src/web/public/index.html +++ b/src/web/public/index.html @@ -3766,5 +3766,6 @@

Read My Mind

+ diff --git a/src/web/public/mobile.css b/src/web/public/mobile.css index 1a5136f4b..bd64ffe6d 100644 --- a/src/web/public/mobile.css +++ b/src/web/public/mobile.css @@ -3937,3 +3937,24 @@ html[data-session-list="sidebar"] .session-sidebar .session-tab .tab-close { max-height: min(88vh, env(viewport-segment-height 0 1, 88vh)); } } + +/* XLSX preview (spreadsheet-preview.js): larger sheet tabs and a taller, + touch-scrollable grid on phones. */ +@media (max-width: 700px) { + .spreadsheet-sheet-tabs { + padding-inline: 4px; + scroll-snap-type: x proximity; + } + + .spreadsheet-sheet-tab { + min-width: 96px; + min-height: 40px; + scroll-snap-align: start; + } + + .spreadsheet-grid { + min-height: 55vh; + -webkit-overflow-scrolling: touch; + touch-action: pan-x pan-y; + } +} diff --git a/src/web/public/panels-ui.js b/src/web/public/panels-ui.js index 8bdf5df8e..16dc7eed1 100644 --- a/src/web/public/panels-ui.js +++ b/src/web/public/panels-ui.js @@ -4083,6 +4083,8 @@ Object.assign(CodemanApp.prototype, { bodyEl.innerHTML = ``; } else if (ext === 'docx' || ext === 'pptx') { bodyEl.innerHTML = ``; + } else if (ext === 'xlsx') { + this._openSpreadsheetPreview(bodyEl, `${base}/raw`, externalSize); } else { try { // Bounded like the workspace text preview: a Range for the first @@ -4167,6 +4169,9 @@ Object.assign(CodemanApp.prototype, { } else if (data.type === 'audio') { bodyEl.innerHTML = ``; footerEl.textContent = `${this.formatFileSize(data.size)} \u2022 ${data.extension}`; + } else if (data.type === 'spreadsheet') { + this._openSpreadsheetPreview(bodyEl, CodemanBase.url(data.url), data.size); + footerEl.textContent = `${this.formatFileSize(data.size)} \u2022 ${data.extension}`; } else if (data.type === 'binary') { const downloadHref = CodemanBase.url(`/api/sessions/${sessionId}/file-raw?path=${encodeURIComponent(filePath)}&download=true`); bodyEl.innerHTML = `
Binary file (${this.formatFileSize(data.size)})
Cannot preview
Download
`; @@ -4237,6 +4242,9 @@ Object.assign(CodemanApp.prototype, { * the in-flight network fetch and puts the element back in NETWORK_EMPTY. */ _stopFilePreviewMedia() { + // A spreadsheet preview owns a fetch and a Web Worker; emptying the body + // leaves both running, so tear them down with the rest of the media. + this._disposeSpreadsheetPreview(); const bodyEl = this.$('filePreviewBody'); if (!bodyEl) return; for (const media of bodyEl.querySelectorAll('video, audio')) { @@ -4251,6 +4259,42 @@ Object.assign(CodemanApp.prototype, { bodyEl.innerHTML = ''; }, + /** + * Render an XLSX into the preview body via spreadsheet-preview.js, which + * parses it in a Web Worker (the ExcelJS bundle loads there, on demand, and + * never on page load). `url` is a raw route; the renderer adds `?preview=true` + * so the server applies its preview size cap. Superseded by the next + * _stopFilePreviewMedia(), which runs on every open and on close. + */ + _openSpreadsheetPreview(bodyEl, url, size) { + this._disposeSpreadsheetPreview(); + const renderer = window.CodemanSpreadsheetPreview; + if (!renderer?.open) { + bodyEl.innerHTML = '
Spreadsheet preview is unavailable.
'; + return; + } + bodyEl.textContent = ''; + const token = {}; + this._spreadsheetPreviewToken = token; + this._spreadsheetPreview = renderer.open({ + container: bodyEl, + url, + size, + isCurrent: () => this._spreadsheetPreviewToken === token, + }); + }, + + _disposeSpreadsheetPreview() { + const handle = this._spreadsheetPreview; + this._spreadsheetPreview = null; + this._spreadsheetPreviewToken = null; + try { + handle?.dispose(); + } catch (err) { + console.warn('Failed to dispose spreadsheet preview:', err); + } + }, + // ═══════════════════════════════════════════════════════════════ // File Viewer edit mode (issue #212 — docs/file-viewer-edit-plan.md) // ═══════════════════════════════════════════════════════════════ diff --git a/src/web/public/spreadsheet-preview-worker.js b/src/web/public/spreadsheet-preview-worker.js new file mode 100644 index 000000000..839e07f08 --- /dev/null +++ b/src/web/public/spreadsheet-preview-worker.js @@ -0,0 +1,220 @@ +/** + * @fileoverview Same-origin XLSX parsing worker for the file-preview overlay. + * + * Runs off the main thread and is the ONLY place the spreadsheet vendor bundles + * load: fflate + the pure core at worker start, ExcelJS only after the ZIP has + * passed `admitXlsx()` (entry/inflate/ratio/cell/style caps). The page never + * loads either vendor file. Cell values are sent back as plain strings; the + * renderer writes them with `textContent`. Formulas are never evaluated (the + * cached result is shown, else the formula text), and nothing here fetches: + * external links, images and drawings are reported as unsupported features. + * + * Script URLs are RELATIVE so they resolve against this worker's own URL, which + * keeps a reverse-proxy `--base-url` mount working. + */ + +'use strict'; + +const spreadsheetAssetVersion = new URL(self.location.href).searchParams.get('v') || 'dev'; +const spreadsheetAssetQuery = `?v=${encodeURIComponent(spreadsheetAssetVersion)}`; +importScripts(`vendor/fflate.min.js${spreadsheetAssetQuery}`, `spreadsheet-xlsx-core.js${spreadsheetAssetQuery}`); + +const core = self.CodemanSpreadsheetXlsxCore; +let workbook = null; +let sheetsById = new Map(); +let populatedRowsById = new Map(); +let normalizedStyles = []; +let styleIds = new Map(); +let themePalette = core.DEFAULT_THEME_PALETTE; + +function postError(error) { + self.postMessage({ + type: 'error', + code: error?.code || 'parse-failed', + message: error?.message || 'Spreadsheet preview failed', + }); +} + +// ExcelJS keeps the workbook's raw theme XML on `_themes.theme1`; the +// fflate re-read is a fallback (admission already bounded the file) and the +// default Office palette is the last resort. +function readThemeXml(loadedWorkbook, bytes) { + const stashed = loadedWorkbook?._themes?.theme1; + if (typeof stashed === 'string' && stashed.length > 0) return stashed; + try { + const entries = self.fflate.unzipSync(new Uint8Array(bytes), { + filter: (file) => file.name === 'xl/theme/theme1.xml', + }); + const theme = entries['xl/theme/theme1.xml']; + if (theme) return new TextDecoder().decode(theme); + } catch (error) { + void error; + } + return ''; +} + +function normalizeStyle(cell) { + // Colours are resolved and contrast-checked as a PAIR. Emitting a + // font colour without its background lets workbook text land on the skin's + // `var(--bg-primary)` and disappear. + const colors = core.resolveCellColors(cell.fill?.fgColor, cell.font?.color, themePalette); + const style = { + font: { + bold: Boolean(cell.font?.bold), + italic: Boolean(cell.font?.italic), + color: colors.foreground, + }, + fill: colors.background, + alignment: ['left', 'center', 'right'].includes(cell.alignment?.horizontal) ? cell.alignment.horizontal : undefined, + wrapText: Boolean(cell.alignment?.wrapText), + }; + const key = JSON.stringify(style); + if (styleIds.has(key)) return styleIds.get(key); + if (normalizedStyles.length >= core.LIMITS.maxStyles) { + throw new core.XlsxPreviewError('style-limit', 'Workbook exceeds the normalized styles limit'); + } + const id = normalizedStyles.length; + normalizedStyles.push(style); + styleIds.set(key, id); + return id; +} + +function worksheetMetadata(sheet) { + const cellRefs = []; + const populatedRows = []; + sheet.eachRow({ includeEmpty: false }, (row) => { + populatedRows.push(row.number); + row.eachCell({ includeEmpty: false }, (cell) => { + cellRefs.push(cell.address); + normalizeStyle(cell); + }); + }); + const merges = Array.from(sheet.model?.merges || []); + const extent = core.deriveExtent(cellRefs, merges); + const rowOverrides = []; + sheet.eachRow({ includeEmpty: false }, (row) => { + if (row.hidden) rowOverrides.push([row.number, 0]); + else if (row.height) rowOverrides.push([row.number, Math.min(546, Math.max(0, row.height * (4 / 3)))]); + }); + const columnOverrides = []; + for (let col = 1; col <= extent.cols; col += 1) { + const column = sheet.getColumn(col); + if (column.hidden) columnOverrides.push([col, 0]); + else if (column.width) columnOverrides.push([col, Math.min(1785, Math.max(0, column.width * 7))]); + } + return { + populatedRows, + metadata: { + id: String(sheet.id), + name: sheet.name, + rows: extent.rows, + cols: extent.cols, + defaultRowHeight: Math.min(546, Math.max(1, (sheet.properties?.defaultRowHeight || 15) * (4 / 3))), + defaultColumnWidth: Math.min(1785, Math.max(1, (sheet.properties?.defaultColWidth || 9.14) * 7)), + rowOverrides, + columnOverrides, + merges, + }, + }; +} + +function cellDisplay(cell, date1904, warnings) { + const formatted = core.formatCellValue(cell.value, cell.numFmt || 'General', date1904); + if (formatted.warning) warnings.add(formatted.warning); + return formatted.text; +} + +async function loadWorkbook(bytes) { + const admission = core.admitXlsx(new Uint8Array(bytes), self.fflate); + if (!self.ExcelJS) importScripts(`vendor/exceljs.min.js${spreadsheetAssetQuery}`); + const nextWorkbook = new self.ExcelJS.Workbook(); + await nextWorkbook.xlsx.load(bytes); + const nextSheets = new Map(); + const nextRows = new Map(); + normalizedStyles = []; + styleIds = new Map(); + themePalette = core.parseThemePalette(readThemeXml(nextWorkbook, bytes)); + const sheets = []; + for (const sheet of nextWorkbook.worksheets) { + if (sheet.state === 'hidden' || sheet.state === 'veryHidden') continue; + const sheetResult = worksheetMetadata(sheet); + const metadata = sheetResult.metadata; + nextSheets.set(metadata.id, sheet); + nextRows.set(metadata.id, sheetResult.populatedRows); + sheets.push(metadata); + } + workbook = nextWorkbook; + sheetsById = nextSheets; + populatedRowsById = nextRows; + self.postMessage({ + type: 'metadata', + sheets, + styles: normalizedStyles, + date1904: Boolean(workbook.properties?.date1904), + empty: sheets.length === 0, + warnings: admission.features, + }); +} + +function sendTile(message) { + if (!workbook) throw new Error('Workbook is not loaded'); + const sheet = sheetsById.get(String(message.sheetId)); + if (!sheet) throw new Error('Worksheet is unavailable'); + const range = message.range; + const warnings = new Set(); + const cells = []; + const seenCells = new Set(); + const addCell = (cell) => { + const key = `${cell.row}:${cell.col}`; + if (seenCells.has(key) || (cell.isMerged && cell.master !== cell)) return; + seenCells.add(key); + cells.push({ + row: cell.row, + col: cell.col, + text: cellDisplay(cell, Boolean(workbook.properties?.date1904), warnings), + styleId: normalizeStyle(cell), + }); + }; + const populatedRows = populatedRowsById.get(String(message.sheetId)) || []; + for (const rowNumber of populatedRows) { + if (rowNumber < range.r1) continue; + if (rowNumber > range.r2) break; + const row = sheet.getRow(rowNumber); + row.eachCell({ includeEmpty: false }, (cell) => { + if (cell.col < range.c1 || cell.col > range.c2) return; + addCell(cell); + }); + if (cells.length > 2500) throw new core.XlsxPreviewError('tile-limit', 'Spreadsheet tile exceeds the cell limit'); + } + const merges = core.intersectingMerges(Array.from(sheet.model?.merges || []), range); + for (const merge of merges) { + const anchor = core.parseRange(merge); + if (anchor) addCell(sheet.getCell(anchor.r1, anchor.c1)); + } + self.postMessage({ + type: 'tile', + requestId: message.requestId, + sheetId: String(message.sheetId), + cells, + merges, + warnings: Array.from(warnings), + }); +} + +self.onmessage = async (event) => { + try { + const message = event.data || {}; + if (message.type === 'load') await loadWorkbook(message.bytes); + else if (message.type === 'tile') sendTile(message); + else if (message.type === 'dispose') { + workbook = null; + sheetsById = new Map(); + populatedRowsById = new Map(); + themePalette = core.DEFAULT_THEME_PALETTE; + } + } catch (error) { + postError(error); + } +}; + +self.postMessage({ type: 'ready' }); diff --git a/src/web/public/spreadsheet-preview.js b/src/web/public/spreadsheet-preview.js new file mode 100644 index 000000000..01b690e54 --- /dev/null +++ b/src/web/public/spreadsheet-preview.js @@ -0,0 +1,414 @@ +/** + * @fileoverview Read-only, virtualized XLSX preview for the file-preview overlay. + * + * `CodemanSpreadsheetPreview.open({ container, url, size })` fetches the workbook + * bytes (same-origin only, `?preview=true` so the server applies its 10 MB + * preview cap), hands them to spreadsheet-preview-worker.js, and renders only + * the visible tile of cells. Parsing happens entirely in the browser worker; the + * server just streams the file through its existing confined raw routes. + * + * Every workbook string (cell text, sheet names) is written with `textContent`, + * never markup. The per-style `