From 82290bb3e0cff2109eb2ee26217b55fd42024edd Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Padez?= Date: Sat, 1 Aug 2026 02:17:20 +0000 Subject: [PATCH] =?UTF-8?q?add=20/qr-transfer=20=E2=80=94=20offline=20file?= =?UTF-8?q?=20transfer=20over=20animated=20QR?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit TEMPORARY / EXPERIMENTAL, at the owner's request, after deedy/qr-data-transfer (QRFerry). Two panels: one loops a file as QR frames, the other scans them through the camera and rebuilds it. Entirely client-side — nothing about a transfer reaches the server, which is the point of the technique. NOT RaptorQ, and that is the one real design decision here. QRFerry carries RFC 6330 fountain-coded symbols so a receiver can rebuild from ANY sufficient set of frames. This uses a plain indexed carousel instead, for two reasons — the second being the deciding one: 1. RFC 6330 is days of work and unpleasant to debug. 2. The sender and receiver are being reimplemented on iOS and Android. A format one person can re-derive from protocol.ts in an afternoon is worth more here than optical efficiency. Every frame is independent, self-describing, and parses with a string split. The cost is honest and written down: without fountain coding you must eventually capture each specific frame, so a miss waits for the next pass rather than being covered by surplus. Fine for a few hundred KB on a steady camera; it degrades where RaptorQ would start to pay for itself. Details that matter for the phone implementations: - base64url, no padding — ':' and '/' would collide with the field separator. - CRC-32 of the whole file in the meta frame, checked after reassembly. The test pins the reference value for "123456789" (cbf43926) so any stock implementation will agree. - The meta frame repeats every 12 frames, so a receiver joining late learns the filename and total without waiting a full cycle. - Error correction level L: frames are short-lived and repeated forever, so QR capacity is better spent staying sparse enough to scan than on recovery. 16 tests over the protocol, which is the spec the other implementations should match. The receiver needs a secure origin for camera access; over the tailnet with HTTPS that holds, and it says so plainly rather than failing silently on plain http. Adds qrcode and jsqr. @types/qrcode was already present and orphaned — its runtime package had been removed with the chat-channel cleanup. Co-Authored-By: Claude Opus 5 (1M context) --- bun.lock | 74 +++++-- package.json | 2 + src/apps/officer-web/App.tsx | 2 + .../Dashboard/QrTransfer/QrTransferScreen.tsx | 40 ++++ .../Dashboard/QrTransfer/defaultLayout.ts | 11 + .../Screens/Dashboard/QrTransfer/index.tsx | 1 + .../officer-web/Screens/Dashboard/index.tsx | 1 + src/apps/officer-web/state/usePageTitle.ts | 1 + .../src/AppRegistry/AppRegistry.tsx | 2 + .../src/apps/QrTransfer/Receiver.tsx | 191 ++++++++++++++++++ .../officerdev/src/apps/QrTransfer/Sender.tsx | 139 +++++++++++++ .../officerdev/src/apps/QrTransfer/index.ts | 17 ++ .../src/apps/QrTransfer/protocol.test.ts | 140 +++++++++++++ .../src/apps/QrTransfer/protocol.ts | 182 +++++++++++++++++ 14 files changed, 785 insertions(+), 18 deletions(-) create mode 100644 src/apps/officer-web/Screens/Dashboard/QrTransfer/QrTransferScreen.tsx create mode 100644 src/apps/officer-web/Screens/Dashboard/QrTransfer/defaultLayout.ts create mode 100644 src/apps/officer-web/Screens/Dashboard/QrTransfer/index.tsx create mode 100644 src/workspaces/officerdev/src/apps/QrTransfer/Receiver.tsx create mode 100644 src/workspaces/officerdev/src/apps/QrTransfer/Sender.tsx create mode 100644 src/workspaces/officerdev/src/apps/QrTransfer/index.ts create mode 100644 src/workspaces/officerdev/src/apps/QrTransfer/protocol.test.ts create mode 100644 src/workspaces/officerdev/src/apps/QrTransfer/protocol.ts diff --git a/bun.lock b/bun.lock index aa1545c2..91eb67ba 100644 --- a/bun.lock +++ b/bun.lock @@ -92,6 +92,7 @@ "injector": "workspace:*", "input-otp": "^1.4.2", "js-beautify": "^1.15.4", + "jsqr": "^1.4.0", "jwt-decode": "^4.0.0", "lucide-react": "^0.562.0", "mailparser": "^3.9.3", @@ -105,6 +106,7 @@ "officerdev": "workspace:*", "pg": "^8.16.3", "postgres": "^3.4.5", + "qrcode": "^1.5.4", "react": "^19", "react-countup": "^6.5.3", "react-day-picker": "^9.13.0", @@ -1092,6 +1094,8 @@ "call-bound": ["call-bound@1.0.4", "", { "dependencies": { 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"sha512-fyi7TDI/ijKKNZTUJAQqiG5T7YjJXgnzkURqmGj13C6dCqckZBLdl4h7bkhHt/t0WP+zO9/zwroDvANaOqO5Sw=="], "@esbuild-kit/core-utils/esbuild/@esbuild/android-arm64": ["@esbuild/android-arm64@0.18.20", "", { "os": "android", "cpu": "arm64" }, "sha512-Nz4rJcchGDtENV0eMKUNa6L12zz2zBDXuhj/Vjh18zGqB44Bi7MBMSXjgunJgjRhCmKOjnPuZp4Mb6OKqtMHLQ=="], @@ -2588,8 +2628,12 @@ "@esbuild-kit/core-utils/esbuild/@esbuild/win32-x64": ["@esbuild/win32-x64@0.18.20", "", { "os": "win32", "cpu": "x64" }, "sha512-kTdfRcSiDfQca/y9QIkng02avJ+NCaQvrMejlsB3RRv5sE9rRoeBPISaZpKxHELzRxZyLvNts1P27W3wV+8geQ=="], + "@isaacs/cliui/string-width/emoji-regex": ["emoji-regex@9.2.2", "", {}, "sha512-L18DaJsXSUk2+42pv8mLs5jJT2hqFkFE4j21wOmgbUqsZ2hL72NsUU785g9RXgo3s0ZNgVl42TiHp3ZtOv/Vyg=="], + "@isaacs/cliui/strip-ansi/ansi-regex": ["ansi-regex@6.2.2", "", {}, "sha512-Bq3SmSpyFHaWjPk8If9yc6svM8c56dB5BAtW4Qbw5jHTwwXXcTLoRMkpDJp6VL0XzlWaCHTXrkFURMYmD0sLqg=="], + "@isaacs/cliui/wrap-ansi/ansi-styles": ["ansi-styles@6.2.3", "", {}, "sha512-4Dj6M28JB+oAH8kFkTLUo+a2jwOFkuqb3yucU0CANcRRUbxS0cP0nZYCGjcc3BNXwRIsUVmDGgzawme7zvJHvg=="], + "@react-email/components/@react-email/render/prettier": ["prettier@3.3.3", "", { "bin": { "prettier": "bin/prettier.cjs" } }, "sha512-i2tDNA0O5IrMO757lfrdQZCc2jPNDVntV0m/+4whiDfWaTKfMNgR7Qz0NAeGz/nRqF4m5/6CLzbP4/liHt12Ew=="], "accepts/mime-types/mime-db": ["mime-db@1.54.0", "", {}, "sha512-aU5EJuIN2WDemCcAp2vFBfp/m4EAhWJnUNSSw0ixs7/kXbd6Pg64EmwJkNdFhB8aWt1sH2CTXrLxo/iAGV3oPQ=="], @@ -2666,8 +2710,6 @@ "socket.io/accepts/negotiator": ["negotiator@0.6.3", "", {}, "sha512-+EUsqGPLsM+j/zdChZjsnX51g4XrHFOIXwfnCVPGlQk/k5giakcKsuxCObBRu6DSm9opw/O6slWbJdghQM4bBg=="], - "string-width/strip-ansi/ansi-regex": ["ansi-regex@6.2.2", "", {}, "sha512-Bq3SmSpyFHaWjPk8If9yc6svM8c56dB5BAtW4Qbw5jHTwwXXcTLoRMkpDJp6VL0XzlWaCHTXrkFURMYmD0sLqg=="], - "tsx/esbuild/@esbuild/aix-ppc64": ["@esbuild/aix-ppc64@0.27.3", "", { "os": "aix", "cpu": "ppc64" }, "sha512-9fJMTNFTWZMh5qwrBItuziu834eOCUcEqymSH7pY+zoMVEZg3gcPuBNxH1EvfVYe9h0x/Ptw8KBzv7qxb7l8dg=="], "tsx/esbuild/@esbuild/android-arm": ["@esbuild/android-arm@0.27.3", "", { "os": "android", "cpu": "arm" }, "sha512-i5D1hPY7GIQmXlXhs2w8AWHhenb00+GxjxRncS2ZM7YNVGNfaMxgzSGuO8o8SJzRc/oZwU2bcScvVERk03QhzA=="], @@ -2778,10 +2820,6 @@ "wif/bs58check/bs58": ["bs58@6.0.0", "", { "dependencies": { "base-x": "^5.0.0" } }, "sha512-PD0wEnEYg6ijszw/u8s+iI3H17cTymlrwkKhDhPZq+Sokl3AU4htyBFTjAeNAlCCmg0f53g6ih3jATyCKftTfw=="], - "wrap-ansi-cjs/string-width/emoji-regex": ["emoji-regex@8.0.0", "", {}, "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A=="], - - "wrap-ansi/strip-ansi/ansi-regex": ["ansi-regex@6.2.2", "", {}, "sha512-Bq3SmSpyFHaWjPk8If9yc6svM8c56dB5BAtW4Qbw5jHTwwXXcTLoRMkpDJp6VL0XzlWaCHTXrkFURMYmD0sLqg=="], - "glob/minimatch/brace-expansion/balanced-match": ["balanced-match@4.0.4", "", {}, "sha512-BLrgEcRTwX2o6gGxGOCNyMvGSp35YofuYzw9h1IMTRmKqttAZZVU67bdb9Pr2vUHA8+j3i2tJfjO6C6+4myGTA=="], "react-email/glob/minimatch/brace-expansion": ["brace-expansion@5.0.3", "", { "dependencies": { "balanced-match": "^4.0.2" } }, "sha512-fy6KJm2RawA5RcHkLa1z/ScpBeA762UF9KmZQxwIbDtRJrgLzM10depAiEQ+CXYcoiqW1/m96OAAoke2nE9EeA=="], diff --git a/package.json b/package.json index 674d1956..f0c5e36c 100644 --- a/package.json +++ b/package.json @@ -115,6 +115,7 @@ "injector": "workspace:*", "input-otp": "^1.4.2", "js-beautify": "^1.15.4", + "jsqr": "^1.4.0", "jwt-decode": "^4.0.0", "lucide-react": "^0.562.0", "mailparser": "^3.9.3", @@ -128,6 +129,7 @@ "officerdev": "workspace:*", "pg": "^8.16.3", "postgres": "^3.4.5", + "qrcode": "^1.5.4", "react": "^19", "react-countup": "^6.5.3", "react-day-picker": "^9.13.0", diff --git a/src/apps/officer-web/App.tsx b/src/apps/officer-web/App.tsx index d283b9cf..582e9c46 100644 --- a/src/apps/officer-web/App.tsx +++ b/src/apps/officer-web/App.tsx @@ -50,6 +50,8 @@ export function App() { } /> } /> } /> + {/* TEMPORARY / EXPERIMENTAL — offline file transfer over animated QR codes */} + } /> } /> } /> diff --git a/src/apps/officer-web/Screens/Dashboard/QrTransfer/QrTransferScreen.tsx b/src/apps/officer-web/Screens/Dashboard/QrTransfer/QrTransferScreen.tsx new file mode 100644 index 00000000..68112e88 --- /dev/null +++ b/src/apps/officer-web/Screens/Dashboard/QrTransfer/QrTransferScreen.tsx @@ -0,0 +1,40 @@ +import { useMemo } from 'react'; +import type { LayoutNode } from 'officerdev'; +import { WorkspaceView } from 'officerdev'; +import { useDashboardState } from 'state/useDashboardState'; +import { defaultLayout } from './defaultLayout'; + +// /qr-transfer — TEMPORARY / EXPERIMENTAL. +// +// Move a file between two devices with no shared network, over animated QR codes: one panel displays a +// looping carousel of frames, the other scans it through the camera. Inspired by deedy/qr-data-transfer, +// but without its RaptorQ fountain coding — see apps/QrTransfer/protocol.ts for that trade and why it was +// made (the format is being reimplemented on iOS and Android, where simplicity beats optical efficiency). +// +// Both panels are pure client-side: nothing about a transfer reaches the server, which is the point. +// The receiver needs a secure origin for camera access — over the tailnet with HTTPS that is satisfied. + +const ALLOWED_APP_TYPES = new Set(['qr-send', 'qr-receive', null]); + +function normalizeLayout(node: LayoutNode): LayoutNode { + if (node.type === 'panel') { + return ALLOWED_APP_TYPES.has(node.appType) ? node : { ...node, appType: 'qr-send' }; + } + const children = node.children.map((c) => { + const fixed = normalizeLayout(c.node); + return fixed === c.node ? c : { ...c, node: fixed }; + }); + return children.some((c, i) => c !== node.children[i]) ? { ...node, children } : node; +} + +export const QrTransferScreen = () => { + const rawWorkspace = useDashboardState('screens/qr-transfer', defaultLayout); + + const workspace = useMemo(() => { + const fixed = normalizeLayout(rawWorkspace.value); + if (fixed === rawWorkspace.value) return rawWorkspace; + return { ...rawWorkspace, value: fixed }; + }, [rawWorkspace]); + + return ; +}; diff --git a/src/apps/officer-web/Screens/Dashboard/QrTransfer/defaultLayout.ts b/src/apps/officer-web/Screens/Dashboard/QrTransfer/defaultLayout.ts new file mode 100644 index 00000000..991c82ed --- /dev/null +++ b/src/apps/officer-web/Screens/Dashboard/QrTransfer/defaultLayout.ts @@ -0,0 +1,11 @@ +import type { LayoutNode } from 'officerdev'; + +export const defaultLayout: LayoutNode = { + type: 'group', + id: 'qr-root', + direction: 'horizontal', + children: [ + { node: { type: 'panel', id: 'qr-send', appType: 'qr-send' }, size: 50 }, + { node: { type: 'panel', id: 'qr-receive', appType: 'qr-receive' }, size: 50 }, + ], +}; diff --git a/src/apps/officer-web/Screens/Dashboard/QrTransfer/index.tsx b/src/apps/officer-web/Screens/Dashboard/QrTransfer/index.tsx new file mode 100644 index 00000000..eb9d1b71 --- /dev/null +++ b/src/apps/officer-web/Screens/Dashboard/QrTransfer/index.tsx @@ -0,0 +1 @@ +export * from './QrTransferScreen'; diff --git a/src/apps/officer-web/Screens/Dashboard/index.tsx b/src/apps/officer-web/Screens/Dashboard/index.tsx index bf39201a..2d43bc66 100644 --- a/src/apps/officer-web/Screens/Dashboard/index.tsx +++ b/src/apps/officer-web/Screens/Dashboard/index.tsx @@ -26,3 +26,4 @@ export * from './Email'; export * from './Browser'; export * from './Desktop'; export * from './Jobs'; +export * from './QrTransfer'; diff --git a/src/apps/officer-web/state/usePageTitle.ts b/src/apps/officer-web/state/usePageTitle.ts index 2b534417..67e17711 100644 --- a/src/apps/officer-web/state/usePageTitle.ts +++ b/src/apps/officer-web/state/usePageTitle.ts @@ -21,6 +21,7 @@ const RULES: TitleRule[] = [ { match: (p) => p.startsWith('/invoices'), title: 'Invoices' }, { match: (p) => p.startsWith('/wallet'), title: 'Wallet' }, { match: (p) => p.startsWith('/system-monitor'), title: 'System Monitor' }, + { match: (p) => p.startsWith('/qr-transfer'), title: 'QR Transfer' }, { match: (p) => p.startsWith('/code-editor'), title: 'Code Editor' }, { match: (p) => p.startsWith('/task-logs'), title: 'Task Logs' }, { match: (p) => p.startsWith('/tasks'), title: 'Tasks' }, diff --git a/src/workspaces/officerdev/src/AppRegistry/AppRegistry.tsx b/src/workspaces/officerdev/src/AppRegistry/AppRegistry.tsx index a09cc88d..7af74ae5 100644 --- a/src/workspaces/officerdev/src/AppRegistry/AppRegistry.tsx +++ b/src/workspaces/officerdev/src/AppRegistry/AppRegistry.tsx @@ -14,6 +14,7 @@ import { appRegistryMetas as transmissionMetas } from '../apps/Transmission'; import { appRegistryMetas as invoicesMetas } from '../apps/Invoices'; import { appRegistryMetas as walletMetas } from '../apps/Wallet'; import { appRegistryMetas as monitorMetas } from '../apps/SystemMonitor'; +import { appRegistryMetas as qrTransferMetas } from '../apps/QrTransfer'; import { useAppRegistry } from './useAppRegistry'; const apps = [ @@ -33,6 +34,7 @@ const apps = [ ...invoicesMetas, ...walletMetas, ...monitorMetas, + ...qrTransferMetas, ]; export const AppRegistry = () => { diff --git a/src/workspaces/officerdev/src/apps/QrTransfer/Receiver.tsx b/src/workspaces/officerdev/src/apps/QrTransfer/Receiver.tsx new file mode 100644 index 00000000..949ba93f --- /dev/null +++ b/src/workspaces/officerdev/src/apps/QrTransfer/Receiver.tsx @@ -0,0 +1,191 @@ +import { useCallback, useEffect, useRef, useState } from 'react'; +import jsQR from 'jsqr'; +import { Camera, Download, RotateCcw } from 'lucide-react'; +import { crc32, decodeFrame, reassemble, type MetaFrame } from './protocol'; + +// Receiver: camera → jsQR → collect frames until every index is present. +// +// Frames arrive in whatever order the camera happens to catch them, and duplicates are constant — the +// sender loops forever. So the state is a Map keyed by sequence number, and progress is its size against +// the total the meta frame declared. +// +// The camera is only available on a secure origin. Over the tailnet with HTTPS that is fine; on plain +// http:// the browser refuses and there is nothing this code can do about it, so it says so. + +type Progress = { meta: MetaFrame; have: number }; + +export const QrReceiver = () => { + const videoRef = useRef(null); + const canvasRef = useRef(null); + const chunksRef = useRef(new Map()); + const metaRef = useRef(null); + const rafRef = useRef(0); + + const [scanning, setScanning] = useState(false); + const [error, setError] = useState(null); + const [progress, setProgress] = useState(null); + const [done, setDone] = useState<{ url: string; name: string; ok: boolean } | null>(null); + + const reset = useCallback(() => { + chunksRef.current = new Map(); + metaRef.current = null; + setProgress(null); + setDone(null); + }, []); + + const stop = useCallback(() => { + cancelAnimationFrame(rafRef.current); + const stream = videoRef.current?.srcObject as MediaStream | null; + stream?.getTracks().forEach((t) => t.stop()); + if (videoRef.current) videoRef.current.srcObject = null; + setScanning(false); + }, []); + + const handleFrame = useCallback( + (text: string) => { + const frame = decodeFrame(text); + if (!frame) return; + + if (frame.kind === 'meta') { + // A different session means the sender switched files — start over rather than mixing two. + if (metaRef.current && metaRef.current.sid !== frame.sid) { + chunksRef.current = new Map(); + } + metaRef.current = frame; + setProgress({ meta: frame, have: chunksRef.current.size }); + return; + } + + const meta = metaRef.current; + // Data before meta is unusable — we would not know how many frames to expect. It comes round again. + if (!meta || frame.sid !== meta.sid) return; + + if (!chunksRef.current.has(frame.seq)) { + chunksRef.current.set(frame.seq, frame.bytes); + setProgress({ meta, have: chunksRef.current.size }); + + const rebuilt = reassemble(chunksRef.current, meta.total); + if (rebuilt) { + // The end-to-end check: every frame passed its own decode, but only this proves the file. + const ok = crc32(rebuilt) === meta.crc32; + const blob = new Blob([rebuilt as BlobPart], { type: meta.mime }); + setDone({ url: URL.createObjectURL(blob), name: meta.name, ok }); + stop(); + } + } + }, + [stop], + ); + + const tick = useCallback(() => { + const video = videoRef.current; + const canvas = canvasRef.current; + if (video && canvas && video.readyState === video.HAVE_ENOUGH_DATA) { + const ctx = canvas.getContext('2d', { willReadFrequently: true }); + if (ctx) { + canvas.width = video.videoWidth; + canvas.height = video.videoHeight; + ctx.drawImage(video, 0, 0, canvas.width, canvas.height); + const image = ctx.getImageData(0, 0, canvas.width, canvas.height); + // dontInvert: our codes are always dark-on-light, and trying both doubles the work per frame. + const found = jsQR(image.data, image.width, image.height, { inversionAttempts: 'dontInvert' }); + if (found?.data) handleFrame(found.data); + } + } + rafRef.current = requestAnimationFrame(tick); + }, [handleFrame]); + + const start = useCallback(async () => { + setError(null); + reset(); + if (!navigator.mediaDevices?.getUserMedia) { + setError('Camera needs a secure origin (https). Plain http will not work.'); + return; + } + try { + const stream = await navigator.mediaDevices.getUserMedia({ + video: { facingMode: 'environment', width: { ideal: 1280 }, height: { ideal: 720 } }, + }); + if (videoRef.current) { + videoRef.current.srcObject = stream; + await videoRef.current.play(); + } + setScanning(true); + rafRef.current = requestAnimationFrame(tick); + } catch (err) { + setError(err instanceof Error ? err.message : 'Could not open the camera'); + } + }, [reset, tick]); + + useEffect(() => stop, [stop]); + + const pct = progress ? Math.round((progress.have / progress.meta.total) * 100) : 0; + + return ( +
+ {!scanning && !done && ( + + )} + + {error &&

{error}

} + +