Commit Graph
209 Commits
Author SHA1 Message Date
Dayuan Jiangandgithub-actions[bot] 0b63e28e5a feat: MCP feature parity, the web app on the MCP core, and provider fixes (#951)
* fix(chat): close credential leaks and harden the chat route

- Vertex: a client-supplied base URL only works with the client's own Vertex key
- Accept only data: URLs for file parts in every message, so the server never downloads them
- Output budget retry accounts for the thinking budget Bedrock/Anthropic add, and reads
  Volcengine, DashScope, SGLang and vLLM rejections; falls back to 16000 once
- x-max-output-tokens can only lower the budget on server credentials
- On server credentials only server models or AI_MODEL entries can be used
- Drop tool results together with the invalid tool calls they belong to
- Count quota tokens as input + output (cached tokens were counted twice)
- Private-URL check for custom base URLs, end Langfuse traces on error/abort/early return
- Fix repairToolCall ordering and placeholder, align edit_diagram prompt with operations
- Panel Bedrock keys are read from ADMIN_AWS_*; forward the access code to EdgeOne
- isMinimalDiagram only treats root cells as an empty canvas

* fix(api): require access codes and limit sizes on helper routes

- Shared checkAccessCode for validate-diagram, validate-model, parse-url, verify-access-code
- parse-url: 5 MB streamed body limit; validate-diagram: 5 MB image limit
- validate-model refuses redirects when private URLs are blocked
- Admin settings state shared across module instances via globalThis
- Server model ids: unique slugs (non-ASCII names encoded), duplicates rejected
- Panel Bedrock credentials stored as ADMIN_AWS_* so the DynamoDB client keeps its own
- Locale redirect keeps basePath and query; EdgeOne function drops open CORS and checks the access code
- Providers payload reports whether .env sets a default model

* fix(chat): keep saved diagrams and pages when restoring, editing and retrying

- Restored sessions no longer replay the last display_diagram over the saved diagram
- Failed or stopped edit_diagram restores the canvas
- Message snapshots keep the full multi-page document
- "Improve with suggestions" uses the normal send path (headers, xml, retry counters)
- Editing a message keeps its file/URL sections; cached example edits work
- New chat's first autosave no longer resets the UI
- Validation retries counted per user turn; validate-diagram sends the access code
- Cached examples only match the example files on an empty canvas
- Template sends keep attachments and wait for extraction

* fix(diagram): fix autosave staleness and XML repair corrupting valid diagrams

- Autosave guard reads refs, so edits after a theme or dark mode switch are kept
- Duplicate-id check and rename run per page; repair loop no longer quadratic
- autoFixXml no longer breaks style values, rich text " or single-line cells
- extractCompleteMxCells keeps the cell after a self-closing cell
- Better truncation detection; object/UserObject wrapped cells are editable
- Exports for thumbnail, PNG and save are routed by tag instead of a shared resolver
- History stores the full document; storage errors are reported, no auto-deletion of chats
- IndexedDB connection reopens after errors; focus refresh throttled
- Keep ?session= on locale redirect, map zh-Hant to zh-tw for draw.io

* fix(chat-input): stop template dialogs from sending and fix attachment races

- Template dialogs no longer submit the outer chat form
- Sending is blocked while files or URLs are still extracting
- File and URL extraction no longer drop or resurrect entries
- IME composition Enter no longer sends
- Tool call cards show the error text; keyboard handling on cards fixed
- Template import available when empty, edit dialog resets, saved templates refresh
- Only png/jpeg/gif/webp images accepted, SVG sent as text; PDF objects released
- parse-url request sends the access code

* fix(model-config): keep model selection valid and fix admin panel edge cases

- Fall back to the default server model when a saved one disappears
- Sync model config across tabs
- Validation uses the base path and sends the access code
- Model ids edited as drafts (no empty, duplicate or padded ids)
- Credential changes reset validation; stale validation results are dropped
- Admin: generateId over HTTP, env-locked group switches, discard and toggle fixes,
  clearing a secret field keeps the saved key, first provider not auto-default when .env sets AI_MODEL
- Model selector items use unique values

* fix(electron): decrypt keys after ready and harden navigation and IPC

- Apply preset env after app ready, so Windows/Linux get decrypted keys
- Never re-encrypt ciphertext; restore env when switching or removing presets
- Block navigation away from the app, open external links in the browser, check IPC senders
- Keep inherited proxy settings, default NO_PROXY for localhost
- Serialize server start/restart, kill stuck processes, follow port changes
- Atomic config writes, keep corrupt files as backups, remember the server port
- Menu and settings window stay in sync; dev script gets the decrypted preset env
- Use app.isPackaged, parse inline .env comments, drop .env files from the bundle

* fix(mcp-server): fix XSS and crashes, make XML validation strict

- Validate and escape the mcp session id; only serve localhost Host/Origin
- Malformed URLs and session ids return errors instead of crashing the process
- Strict XML syntax check with saxes (linkedom never reports parse errors)
- autoFixXml no longer corrupts valid XML; attribute newlines serialized as entities
- Sessions stay alive while polled; browser pushes carry a base version (409 on conflict)
- Page tools respect the edit gate; UTF-8 bodies decoded correctly
- Export replies matched to requests and serialized; xml sync export handled
- UserObject/object cells addressable by id; history restored by stable id; logs off stdout

* fix(mcp-server): make edit_diagram all-or-nothing and fix preview sync races

- edit_diagram applies nothing when any operation fails, rejects invalid or
  multi-cell new_xml, validates only the target page, and returns the
  current page XML on every rejection (including stale edits)
- Fix get_diagram reading the old diagram right after an AI write: the
  preview pushed its sync reply with a newer version than it was taken at
- Keep a user edit that loses the race with an AI write in history and
  tell the user in the preview
- Autofix removes only exact foreign tags (a stray <mxGraph/> deleted
  <mxGraphModel>), fixes tag case, drops orphan <mxPoint>s, and rejects
  unknown element names in model XML
- Edit empty and compressed pages; PNG exports use the page on screen;
  tag download exports; reload from the server after a page export
- Expand ~ in paths, tell the model when the browser sync timed out,
  use registerPrompt, require SDK ^1.31.0

* feat(mcp-server): bring the web app's drawing knowledge to MCP

- Add a drawing guide adapted from the web system prompt (layout, edge
  routing, styles, minimal style, editing rules), returned by
  start_session, a new get_drawing_guide tool and the diagram-workflow prompt
- Add get_shape_library with the 30 icon libraries; the build copies
  docs/shape-libraries into dist and CI checks the packed files
- Accept bare mxCell lists in create_new_diagram and add_page; the server
  adds the wrapper and root cells
- Send server instructions, shorten create_new_diagram's description to
  fit Claude Code's 2,048 character limit, and annotate every tool
- Fix dead links and the totals in docs/shape-libraries/README.md

* feat(mcp-server): add screenshot_diagram so the model can check its render

- New read-only screenshot_diagram tool returns the rendered page as a PNG
  plus the web app's visual checklist (overlaps, edges crossing shapes,
  readability, layout, rendering errors), replacing the web app's
  separate vision model with the host model's own vision
- PNG exports use draw.io's width and pageId options: screenshots stay
  under ~140,000 base64 characters and page exports no longer swap the
  page on screen
- Fail fast with a clear message when the preview tab stopped polling
  (browsers throttle background tabs)
- Mention the screenshot step in the drawing guide and instructions

* feat(mcp-server): auto-save each session's diagram to a .drawio file

- Save the latest diagram of every session 1 second after each change
  (AI write, browser edit, history restore) to ~/.next-ai-drawio/<id>.drawio,
  keep the newest 50, flush on shutdown; DRAWIO_DATA_DIR changes the folder
  and "off" disables it, like the web app's IndexedDB sessions
- start_session names the file, so a resumed conversation can reopen the
  diagram with load_diagram after the MCP process restarted
- Fix PNG/SVG exports randomly timing out: a previous export's 10 second
  timer cleared the export in progress, and a late reply could be taken
  for the current one; exports are now numbered

* refactor(mcp-server): move the preview page into src/preview

The 580-line page template in http-server.ts becomes index.html,
preview.css and preview.js, copied to dist/preview by the build and
filled at request time. The rendered page is unchanged apart from the
session id and draw.io origin now coming from a small config script.
Biome skips the folder because of the {{placeholders}}, as it never
linted the old template string either.

* feat(mcp-server): add theme menu, dark mode and editable SVG to the preview

- Pass themes=1 and dark=auto to the draw.io iframe, so the Extras menu
  offers the Theme submenu and draw.io follows the system dark mode; the
  header and dialogs follow it too through prefers-color-scheme
- Download dialog: new Editable SVG (.drawio.svg) format through draw.io's
  xmlsvg export, default name diagram-YYYY-MM-DD, Enter saves and Escape
  closes it and the history dialog
- export_diagram accepts format "drawio.svg" and detects the .drawio.svg
  extension
- Use system fonts instead of Google Fonts, so the page works offline with
  a self-hosted draw.io (DRAWIO_BASE_URL)

* docs(mcp-server): describe the new MCP features in all READMEs

- MCP server README: 13 tools, drawing rules and shape libraries,
  screenshots, all-or-nothing edits, auto-save and how to continue a
  diagram later, DRAWIO_DATA_DIR and DEBUG, offline use with a local
  draw.io, and what to do when a background tab makes exports time out
- Fix two errors: History is a button at the top right of the preview
  page, and exports are not limited to .drawio
- Claude Code plugin README: same tool list, formats and settings
- Root READMEs (English, Chinese, Japanese): short list of what the MCP
  server can do

* fix(mcp-server): fix duplicate page exports and auto-save deleting user files

- Preview page: keep an MCP export open until the server has its result.
  A poll answered before that still saw the request and started the same
  export again, so a parallel page export could write the previous
  page's image into its file
- Auto-save only removes its own mcp-*.drawio files, so a DRAWIO_DATA_DIR
  that also holds the user's diagrams keeps them
- screenshot_diagram captures a page that has no id attribute by loading
  just that page, like export_diagram
- An empty <Array as="points"/> no longer hides orphan mxPoints that
  come after it
- POST /api/state refuses a push without xml, which used to wipe the
  stored diagram
- Clear exportOptions when an export ends, reuse hasCells for the empty
  diagram check, and reword two log lines

* fix: log Editable SVG saves, use local dates in file names, drop unused Electron dialogs

- /api/log-save accepted only drawio, png and svg, so saving as Editable
  SVG (xmlsvg) got a 400 and was never recorded in Langfuse
- The default download name and the template export name used the UTC
  date, which is the previous day on mornings in East Asia
- Remove the Electron openFile/saveFile IPC handlers, their preload
  bindings and types; nothing in the app calls them

* refactor(mcp-server): make the diagram modules usable from the web app

The web app will reuse the MCP server's XML engine instead of its own
copy in lib/utils.ts, so these modules now run in the browser too.

- Relative imports end in .ts, rewritten to .js by tsc
  (rewriteRelativeImportExtensions); Next.js resolves them directly
- Every module uses the global DOMParser/XMLSerializer: native in the
  browser, linkedom in Node via installDomPolyfill. pages.ts parsed with
  linkedom but serialized with the global serializer, which throws in
  the browser
- The saxes syntax check moves to xml-syntax.ts, so the browser does not
  pull in linkedom; it now also rejects undeclared prefixes such as
  xlink:, as the browser does
- Page decompression uses pako and atob instead of node:zlib and Buffer
- hasCells moves to pages.ts, away from the file system code
- The duplicate cell id check counts UserObject/object ids
- wrapCellsInModel drops comments and text before the first cell, which
  the web app accepts today
- validateAndFixXml takes { strict: false } for diagrams with user content
- Web tests run these modules with a browser DOM (jsdom)
- saxes becomes a direct dependency of the web app

* refactor(web): validate and repair diagram XML with the MCP server's engine

- Delete the web app's own copy of the XML checks and repairs from
  lib/utils.ts (1,074 lines). loadDiagram now uses the MCP server's
  validateAndFixXml without the strict checks, because the XML may hold
  the user's own diagram
- display_diagram and append_diagram prepare the model's XML with the new
  shared prepareNewDiagram, also used by the MCP create_new_diagram: wrap,
  validate strictly and auto-fix while it is still a bare model (where
  duplicate ids are renamed), then turn it into an mxfile
- The streaming preview of display_diagram no longer redraws the model's
  raw cells after the tool handler loaded the checked diagram, and drops
  a queued preview once the input is complete. That redraw lost
  auto-fixes and UserObject/object wrappers, so a linked cell lost its
  label; it also showed a second error toast
- The web repair regression tests now run against the MCP functions
- New e2e test checks the canvas content after display_diagram
- Fix the e2e upload tests, whose file input locator also matched the
  template import input

* refactor(web): edit and wrap diagrams with the MCP server's code

- edit_diagram runs the MCP server's editDiagram: every new_xml is checked
  first, one cell per operation, and after the edit only the target page
  is checked, rejecting only errors this edit introduced. An unrelated
  problem elsewhere in the document no longer blocks every edit. The
  error lists each failed operation
- The streaming edit preview uses the MCP applyDiagramOperations
- Delete applyDiagramOperations (292 lines) and wrapWithMxFile from
  lib/utils.ts, and the unused hand-copied scripts/test-diagram-operations.mjs
- One blank document (BLANK_MXFILE) for the web app and the MCP preview,
  replacing four copies
- Saving a .drawio wraps a bare model with normalizeToMxfile
- The empty-diagram check uses hasCells, which also counts cells wrapped
  in a UserObject/object
- DiagramOperation is the MCP type
- The wrapped-cell and empty-diagram tests now run against the MCP code
- New e2e test: edit_diagram changes the canvas, and a failing edit
  leaves it as it was

* refactor(web): share prompt examples and the shape library with the MCP server

- The three XML examples (swimlanes, two edges, waypoints) that the web
  system prompt, the display_diagram description and the MCP drawing
  guide each had a copy of now live in packages/mcp-server/src/xml-examples.ts
- The shape library group list and reader come from the MCP
  shape-library.ts; getShapeLibrary takes the folder, and the web route
  passes docs/shape-libraries under the working directory as before.
  Only the 30 known library names are read. Error texts differ slightly
- next.config.ts traces docs/shape-libraries/*.md for /api/chat, since
  the read now happens in another module
- Every prompt is byte-for-byte unchanged: the web system prompt for five
  model ids with and without minimal style, and the MCP drawing guide,
  compared before and after; the library list and swimlane example match
  the old tool description text exactly

* fix(providers): update the v6 SDK packages and fix Claude and Gemini settings

- Update ai to 6.0.300 and the @ai-sdk providers to their latest v6-line
  versions. @ai-sdk/anthropic 3.0.47 did not know claude-opus-4-7/4-8
  and capped their output at 32000 tokens; 3.0.127 allows 128000
- Drop the fine-grained-tool-streaming beta header for the Anthropic API:
  the provider now streams tool input per tool (eager_input_streaming)
- Claude 4.7 and later reject a non-default temperature/top_p/top_k and
  the extended thinking budget with a 400. A middleware retries once
  without them, so TEMPERATURE and *_THINKING_BUDGET_TOKENS no longer
  break those models
- Prompt caching also reaches Claude on the Anthropic API and OpenRouter;
  before, only Bedrock got a cache marker
- GOOGLE_TOP_K and GOOGLE_TOP_P never reached Gemini: they were sent as
  Google provider options, which drops them. They are call settings now.
  GOOGLE_CANDIDATE_COUNT and GOOGLE_REASONING_EFFORT, which the provider
  does not support, are removed
- Add @ai-sdk/openai-compatible as a direct dependency

* refactor: simpler streaming preview and small AI SDK cleanups

- useChat throttles streamed message updates (experimental_throttle,
  150 ms), replacing the two hand-written 150 ms timers of the
  display_diagram and edit_diagram previews (94 lines less). The preview
  now only runs while the input streams; once it is complete the tool
  handler takes over, so a queued preview can no longer redraw an edit
  the handler rejected and rolled back. Measured on a streamed 60-cell
  diagram: 41 redraws at least 97 ms apart, before 37 with gaps down to
  48 ms
- The diagram check endpoint uses streamText with Output.object instead
  of the deprecated streamObject, and returns its fixed result as a plain
  text response; new route test
- Import createGateway/gateway from ai and drop the direct
  @ai-sdk/gateway dependency
- The per-request message structure logs only print with
  DEBUG_LLM_PAYLOAD=true
- Remove an empty onFinish callback

* refactor(chat): check the last tool part with the SDK's isToolUIPart

Drop the hand-written MessagePart and ChatMessage types that only served
this check.

* refactor(providers): one model factory for chat and the settings Test button

- getAIModel resolves credentials (client key, server env vars, the
  existing SSRF rules) and createModel builds the model by SDK. The
  provider-by-provider switch shrinks from 24 cases to the few that
  differ (lib/ai-providers.ts 1531 -> 1106 lines)
- /api/validate-model calls getAIModel instead of its own 24-case switch
  (503 -> 175 lines), which had drifted from the chat: it built Azure
  with createOpenAI, Kimi and MiMo with createOpenAI instead of
  createDeepSeek, and the official OpenAI endpoint with Chat Completions.
  A passing test now means the chat works
- Plain OpenAI-compatible providers (SiliconFlow, SGLang, ModelScope,
  GLM, Qwen, Qiniu, Novita, Atlas Cloud, EdgeOne, Doubao, MiniMax in
  OpenAI mode, AIHubMix on a custom URL) use @ai-sdk/openai-compatible,
  which reads reasoning_content, so their reasoning shows, and accepts
  SGLang's stream as is (its 95-line stream rewrite is gone).
  includeUsage keeps token usage for quotas. <think> tags in their text
  become reasoning (extractReasoningMiddleware)
- SGLang without a base URL used OpenAI's endpoint; it now defaults to
  http://127.0.0.1:8000/v1 like the Test button did
- Chat requests to a client base URL refuse redirects, as the Test
  button already did (redirectGuardedFetch moves to lib/ssrf-protection)
- The Test button streams like the chat (the ModelScope special case is
  gone), times out after 15 s, does not retry, asks the model to call a
  ping tool and warns when it answers without one, and tests all models
  at once. The time each test took shows on its check mark
- Unknown provider names are rejected with Object.hasOwn, and the error
  texts list providers from PROVIDER_INFO instead of hand-kept lists

* feat(settings): link to each provider's key page and clean up base URLs

- A "Get API key" link next to the API Key field for the 19 providers
  that have a key page (from env.example and the providers' docs). 17
  answered 200 to curl; OpenAI's is behind a Cloudflare challenge and
  DeepSeek's behind a regional block, both checked in Chrome
- Base URLs drop spaces, trailing slashes and a pasted endpoint path
  (/chat/completions, /completions, /messages, /responses), which the
  SDK would otherwise append a second time and get a 404. getAIModel does
  this for the chat and the Test button; the field does it on blur and
  shows the URL requests go to

* feat(errors): classify provider errors and show a hint the user can act on

- lib/llm-errors.ts sorts an error into about a dozen kinds (key
  rejected, no access, unknown model, no credit, rate limited, context
  too long, no image input, no tool calls, output cut off, provider down,
  cannot connect, timeout): first texts that name the cause precisely,
  then the HTTP status code, then general texts. It unwraps RetryError and
  hides keys and Bearer tokens in the provider's message
- The chat route uses it for errors before the stream and, through
  toUIMessageStreamResponse's onError, for errors in the stream. Errors
  of the model's own tool call stay as they are: the same text goes back
  to the model so it can fix the call
- The chat shows the hint in the user's language, then the provider's
  message; a rejected key, missing access or unknown model adds an "Open
  model settings" button. The Test button shows the same hints
- Fixes: our message "API key is required when using a custom base URL"
  was replaced by "Authentication failed" because it contains "key"; a
  provider's "Rate limit exceeded" opened this site's quota toast; an
  error body like {"error": ...} was shown as raw JSON; the Test button
  matched "401" in the message, where providers rarely put it
- Remove the string matching fallbacks in the chat panel

* refactor(settings): drop an unused index parameter

* feat(settings): fetch the model list from any provider and flag models that cannot draw

The "Fetch models" button asks the provider for its models (OpenAI-style
/models, Anthropic, Google, Ollama, OpenRouter, Vercel Gateway, AIHubMix)
and shows them in a searchable picker. This replaces the route that only
worked for AIHubMix.

A snapshot of models.dev (MIT) says which models support tool calls.
Models without them get a "no tool calls" badge in the picker and a hint
in the model list, since drawing needs tool calls. Refresh the snapshot
with scripts/update-model-catalog.mjs.

* fix(mcp-server): reject text between tags, which draw.io cannot open

draw.io reads any text inside a page as compressed page data, so a stray
text node makes the whole page fail with an atob error. gpt-5-mini sends
new cells with a literal "\n" between the tags; the edit card said
Complete while draw.io showed the error and kept the old diagram.

Validation now reports text between tags, and auto-fix turns a literal
\n, \t or \r between tags into whitespace. Other text goes back to the
model as an error. The compressed data directly under <diagram> is fine.

* fix(chat): clearer provider errors and no empty bubble, found with real models

- An error object sent inside the stream (OpenRouter's { code, message })
  showed as "[object Object]"; its message and status code are read now.
- A problem+json "detail" is added to the message: NVIDIA only said
  "Gone" for a retired model. 410 counts as model not found.
- "Cannot connect to API" from the SDK gets the connection hint.
- Text that is only whitespace (Kimi K2.6 sends a space before a tool
  call) no longer shows an empty bubble.
- allowSystemInMessages stops the warning on every request. Our system
  messages carry cache points; a client's own system messages are already
  dropped by the empty-content filter.

* feat(providers): suggest the Claude 5 and GPT 6 models, show GPT 6 reasoning

The suggested models stopped at Claude Opus 4.8 and GPT 5.5. They now
start with Claude Opus 5.5, Sonnet 5.5 and Fable 5.1, and gpt-6.1-sol,
gpt-6-sol, gpt-6-luna and gpt-6-astra (ids checked against the provider
lists). The Bedrock list is unchanged until its ids are checked.

The reasoning summary was only turned on for model ids containing o1,
o3, o4 or gpt-5, so GPT 6 models showed no thinking. It now matches the
o-series and gpt-5 or later by version, like the OpenAI SDK.

* fix(providers): keep thinking on the newest Claude models, fix the Bedrock ids

Measured on Bedrock: Claude Opus 4.7, 4.8 and every Claude 5 model reject
a thinking budget ("thinking.type.enabled") and a temperature, and all of
them accept adaptive thinking. The retry used to drop thinking, so with
a thinking budget set these models did not think at all. It now switches
to adaptive thinking with display "summarized"; without that setting the
models think but send no thinking text to show.

The suggested Bedrock ids had no region prefix, and the newer models only
answer through an inference profile id: "anthropic.claude-sonnet-5-5"
fails with "on-demand throughput isn't supported". Each suggested id was
called once; the Claude ones now start with "global.", Llama, Pixtral and
Nova 2 Lite with "us.". Nova Premier (end of life) and the ids without a
working profile are gone. The docs example had the same problem and a
wrong date.

* fix(chat): an edit after a broken edit call no longer fails, found with Opus 5.5

- Claude Opus 5.5 sent an edit with invalid JSON, then the same edit
  again. The first call's streamed preview was never undone: its input
  has no operations, and the undo sat behind that check. The second edit
  then started from the preview, failed on a duplicate id, and the model
  had to try a third time. The undo now runs first, and an edit that
  starts in the same render uses the undone diagram.
- The SDK passes an invalid tool call's error as a string, which was
  wrapped as a provider error. streamErrorText keeps it as the text the
  model reads.
- Bedrock's "on-demand throughput isn't supported" gets the model id hint.
- The thinking header uses the page language ("Thought for 1 second" in
  English), from the dictionary entries that were already there.

* chore(mcp-server): release the new features as 0.3.0

npm has 0.2.3. The earlier commits raised the version step by step to
0.6.0, but they ship together as one release.

* style: auto-format with Biome

* fix(chat): draw the built-in examples again and undo edit previews on errors

Found by the PR review:
- The built-in examples showed a finished card and an empty canvas. They
  are answered in the browser, never reach the tool handler, and relied
  on the final redraw that an earlier commit removed. The example branch
  now loads its diagram itself.
- When the request failed while an edit was streaming (a provider error,
  a lost connection), its preview stayed on the canvas. The error handler
  now restores the diagram from before the preview.
- The model picker could not scroll with the wheel or touch: the settings
  dialog blocks those events outside itself, and the picker is rendered
  outside it. The popover is modal now.
- A fetch error and the open picker stayed when switching providers.
- Editing a model id kept the old test warning and response time, which
  also hid the "may not be able to draw" hint for the new id.

* fix(mcp-server): keep both pages when get_diagram meets a page export, and more review fixes

Found by the PR review, each with a test that failed first:
- get_diagram during a page export returned the one-page projection on
  screen as the whole document (6 of 6 times when timed so). The preview
  page no longer answers a sync while a projection shows, and syncs after
  reloading, so the poll that restores the real document exports it.
- Exports are numbered on the server too: a late result of an export that
  timed out was saved as the next export's file.
- In Chrome, a new_xml with a syntax error counted the <parsererror>
  element as a second cell, so the web app rejected edits that auto-fix
  repairs ("must contain exactly one cell").
- hasCells missed single-quoted ids, so screenshot_diagram called such a
  diagram empty and auto-save never created its file.
- A literal \n directly under a <diagram> that has a model passed
  validation; only text-only pages are compressed data.
- A wrapped mxCell repeating its UserObject's id took the wrapper's place
  in edits, so delete and update left an empty or nested wrapper.
- Bare cells with a shape or edge id of "0" or "1" are rejected with a
  clear message instead of being renamed, which broke their edges.
- DRAWIO_DATA_DIR expands ~, which JSON configs pass on as it is.

* fix(server): count quota by the key actually used, and more review fixes

Found by the PR review, each with a test that failed first:
- Quota: any key header skipped it, even one the provider never reads
  (x-aws-access-key-id with OpenAI), so a request ran on the server's
  key without being counted. The check now runs after the model is
  resolved and uses usesServerCredentials. On main already.
- usesServerCredentials read the raw base URL; "/" cleans up to none, so
  an Ollama request ran on the server's key past the server-model check.
- SGLang's default 127.0.0.1:8000 only fills the settings form. Chat and
  the model list used it as a real address, so the server called its own
  machine even with private URLs blocked. Now a base URL is required.
- With a user's OpenAI key and no base URL, the SDK read the server's
  OPENAI_BASE_URL. The official endpoint is now passed. On main already.
- The Test button refused nothing on the server's keys (Ollama Cloud),
  and a 15 s timeout reported "connected, no tool call".
- The model list for Ollama without a base URL came from ollama.com while
  chat went to the server's Ollama.
- Bedrock's "Too many tokens, please wait" counted as context too long.
- On the server's keys the provider's error text stays in the server log;
  it can name the server's AWS account, role or internal hosts.
- Desktop app: the preset keys are the user's own (NEXT_AI_DRAWIO_DESKTOP),
  so Max Output Tokens can be raised and keyless models in settings work
  again. A launch that found the remembered port taken no longer replaces
  it, which hid the user's chats and settings for good.

* ci: run auto-format with the Biome version in package.json again

package.json moved to Biome 2.5.7 but the auto-format job stayed on
2.4.13. The two format some files differently, so on this PR the bot
reformatted tests/unit/log-save-route.test.ts with 2.4.13 and the lint
job, on 2.5.7, then failed on it. The pin now matches package.json, as
its comment asks, and the file is back in 2.5.7's format.

* fix(chat): keep the canvas after an unrelated error, and more review fixes

Found by the second PR review:
- After a streamed edit, an older render of the stream stored the edit's
  original diagram again, and the next failed request (no quota, a lost
  connection) put that old diagram back on the canvas. The tool handler
  now marks its call as handled, so the preview code leaves it alone.
- An edit applied before the UI showed an earlier broken edit's error was
  erased when that error undid its preview, or was built on that preview.
  The handler now starts from the diagram before all unhandled previews,
  and reads the diagram state that updates at once.
- A failed or stopped display_diagram left its half drawn diagram on the
  canvas. Its preview is undone now, like an edit's.
- "New chat" cleared a chat that could not be saved (storage full).
- The settings dialog showed a model list, a fetch error or a test result
  on the provider that was opened after the request started, and marked a
  model id changed during the test as tested.
- A tool call with broken JSON was shown as cut off by the output limit.
- History entries and session thumbnails could pair with a later diagram
  when draw.io answered an export late.
- A server model saved before non-ASCII provider names got into the id
  was reset to the default model.

* fix(mcp-server): count a one-page view only for that page, and more review fixes

Found by the second PR review:
- get_diagram with a page selector, or a rejected edit's error, counted
  the whole document as seen, so an edit on another page could overwrite
  the user's change there. A one-page view now counts for all pages only
  if the others are unchanged; otherwise the reply says to get them.
- add_page accepted shapes with the root cell ids "0" and "1" and renamed
  them, breaking their edges. The check also missed ids on UserObject
  wrappers and ids written with spaces around the "=".
- Root cells written over two lines were kept as an extra layer, cells
  with id = "a" did not count as cells, and CDATA text before a page's
  model passed the check although draw.io cannot open the page.
- Auto-save cleanup deleted the user's own files that start with mcp-.
  Only names in the session id format are removed now.
- Restoring a history entry dropped edits made in the browser since the
  last entry. They are added to history first.
- A session whose state expired showed a blank page, and the next change
  overwrote its auto-save file. The saved file is loaded instead.
- An edit on a page export's one-page projection, made before the real
  document was back, replaced the whole document.
- A late sync reply could overwrite a newer edit: each sync export is
  numbered, and the server ignores replies older than the current state.
- screenshot_diagram could return another session's image after
  start_session ran during its retries.

* fix(server): use the keys the user sent, and more review fixes

Found by the second PR review:
- With AWS_BEARER_TOKEN_BEDROCK set on the server, a request with the
  user's AWS keys ran on the server's token: the Bedrock SDK prefers it.
  Checked with Bedrock: invalid user keys used to get an answer.
- An OpenAI key with the official URL filled in (the settings form does
  that) went to the Responses API. Back to main's rule: a configured base
  URL uses Chat Completions.
- A user's Ollama key went to the server's OLLAMA_BASE_URL, for chat and
  for the model list. Like every other provider, it goes to the user's
  base URL or Ollama Cloud.
- The server's keyless Ollama and EdgeOne were not counted in the quota.
- AI_MODEL models on the server's keys ran on any provider with a server
  key, not only on AI_PROVIDER.
- A user's Azure key without a base URL used the server's resource name.
- The admin panel's Test button failed whenever access codes were set.
- DeepSeek's errors in the stream (plain text) were shown as they were,
  without a hint and also on the server's keys. Bedrock's throttling in
  the stream was not recognised as a rate limit.
- The EdgeOne function accepted text/plain; x=application/json, which
  other sites can send without a CORS preflight.
- Desktop app: a launch that found the old port taken for a moment (the
  previous version still quitting after an update) remembered the new
  port for good. The new port is kept only when Windows reserves the old
  one. A failed read of the presets file moved it aside as corrupt, and a
  save could then replace the presets. Switching presets on the same port
  now reloads the page. The dev launcher no longer misses a preset change
  made before or during a restart.

* fix(chat): undo rejected or stopped previews, and more fixes from the third review

- A call the server runs (get_shape_library) still reaches the browser's
  tool handler, and it dropped the stored diagram of an earlier broken
  edit, whose preview then stayed. Only the tools that draw take it now.
- A display_diagram whose final XML fails the checks loads the diagram
  from before its preview again, as a failed edit does.
- After Stop, a tool result that arrives later (a screenshot check still
  running) no longer sends a new request; Stop also skips calls the tool
  handler already took.
- New chat and opening another chat kept nothing of a diagram drawn
  without messages when it could not be saved; now they stay on it.
- The settings dialog drops a model list or test result whose provider
  credentials changed meanwhile, also in another tab.
- A saved provider this version does not know crashed the whole page on
  load; it is skipped.
- The input emptied a moment after the message showed in the chat, so it
  briefly appeared twice (seen as a flaky e2e test).
- The desktop app's preset switch on the same port refetches the server
  models instead of reloading the page, which lost unsent attachments.

* fix(mcp-server): recover sessions in one place, and more fixes from the third review

- A session whose state expired was recovered from its auto-save file only
  for the preview page; the tools built on their older copy and then
  overwrote the file. They now recover it first (restoreSavedSession).
- A preview tab that missed the last AI write pushed its older diagram
  over the recovered one after a restart. It now shows the recovered
  diagram and keeps its own copy in History.
- An empty record of what the model has seen (after load_diagram or a
  page tool on unseen changes) no longer lets one page of a multi-page
  document count for all, and get_diagram counts a page only once found.
- History: a thumbnail goes only to the entry it shows, the cached image
  never belongs to an older diagram, a re-serialized copy adds no entry,
  and a cleared document with its own pages is kept before a restore.
- The root cell id check reads attributes one by one: rack-id="1" or id
  text inside a label no longer counts.
- A compressed page counts as having cells; a saved file that could not
  be read is never written over.

* fix(server): keep users' keys at their own endpoints, and more fixes from the third review

- Bedrock: a user's AWS keys no longer go to an endpoint the server sets
  in AWS_ENDPOINT_URL_BEDROCK_RUNTIME / AWS_ENDPOINT_URL (read by the
  upgraded SDK), and admin panel keys win over AWS_BEARER_TOKEN_BEDROCK,
  as the Test button checks them. Checked with Bedrock.
- Ollama: a server key without a base URL (admin panel, OLLAMA_API_KEY)
  goes to Ollama Cloud, as env.example says, instead of 127.0.0.1.
- Quota: EdgeOne counts whatever key header comes along, keyless Ollama at
  a private address counts, and their provider texts stay in the log.
- An EdgeOne server model (admin panel, ai-models.json) works: the route
  checked the raw provider header, which holds the name's slug.
- parse-url ends downloads it does not read (too large, PDF, errors).
- Desktop app: the port follows where the chats are (IndexedDB per
  origin) instead of a remembered port, which could hide them for good;
  a same-port restart tells the page to refetch the server models; a
  failed preset switch no longer undoes a newer choice; a presets file
  removed after a failed read can be saved again; .env values quoted from
  start to end keep their inner quotes, as dotenv reads them.

* fix(security): check request sources, regions and endpoints

- Bedrock: a request's AWS region must be a region name. It becomes part
  of the endpoint's host name, so a value such as
  "us-east-1.attacker.example/" sent the server's bearer token or signed
  request to another host.
- MCP preview server: only the preview page itself (Origin equal to the
  Host) or a non-browser client may call it; a page on another localhost
  port could replace the diagram with a plain text POST. History builds
  its thumbnails element by element and shows only SVG data images, so a
  stored value can no longer run script in the preview.
- chat, validate-model, validate-diagram, provider-models and parse-url
  take JSON bodies only, so another website cannot make the user's own
  server (the desktop app, a local install) run models with their keys;
  the desktop app also refuses a foreign Host (DNS rebinding).
- The model list reads at most 2 MB, also through the Gateway SDK, and
  answers only with its own error texts: the URL is the caller's and may
  be an internal address.
- An admin panel provider with its own key and no URL no longer inherits
  the global <P>_BASE_URL, which may be a proxy for another key; OpenAI
  then gets the official endpoint, as its Test. Azure keeps the server's
  resource.

* fix: what the third round broke, and the first batch's review

MCP preview after the server lost a session (it expired, or the MCP
process restarted):
- Every server state has an id, made when the state is created. The tab
  notices a new id even when the version numbers happen to match, and
  every push names the state it was based on, so one based on a lost state
  is refused, also when it comes before the tab's first poll (the server
  recovers the saved file first).
- The tab keeps the newest canvas XML, saved or not. When the server knows
  nothing (no file) or exactly what the tab last saved, the canvas wins and
  is saved, so edits made while the server was down are kept. Otherwise
  the server's diagram (an AI write the tab missed, a cleared document
  that was saved) is shown and the tab's copy goes to History.
- Late answers to an old state's push or poll are dropped; a failed push
  says the server is unreachable; Download as .drawio saves the canvas.

Settings and server:
- Saved providers this version does not know stay in storage with their
  keys, and sending no longer trips over them.
- The desktop "Ollama (Local)" preset with a key goes to local Ollama
  again; a server model's Ollama URL variable is read; the admin panel
  writes Ollama Cloud's URL for a key without one.
- Provider error texts show again in the desktop app and for EdgeOne.
- .env: a quoted value followed by a comment ending in a quote is read as
  dotenv reads it; unquoted values are unchanged.
- Desktop app: the next launch opens the port where a chat was last
  saved; a launch elsewhere that saves nothing does not move it, and a
  page with no chats lets the next launch try the other port once.
- The Test button no longer stays busy after another tab changed the key.
- A completed append_diagram is no longer undone by an earlier failed
  edit's preview; a file read once in vain is saved again once it is read
  or gone.

From the first batch's review:
- The admin panel's Test of an entry without a URL now tests the server's
  <P>_BASE_URL, where chat sends the entry's key; chat is unchanged (the
  first fix rerouted working setups).
- The model list ends downloads that are too large, accepts answers
  without a body, and keeps the "redirects are not allowed" explanation.
- A test covers the preview's History rendering.

* fix: older defects (batch C) and the second batch's review

Chats:
- New Chat right after an answer saves that chat once. Saves run one at
  a time and read the chat on screen when their turn comes; a save
  scheduled for a chat that is no longer on screen is dropped. A chat
  whose id was still on its way to the URL no longer comes back after
  New Chat (the next answer went into it).
- Crossing the 768 px breakpoint keeps the chat panel: a streaming answer,
  unsaved messages and attachments stay. The panel gets the sizes of each
  side, and a panel collapsed on desktop opens on mobile.
- The chat's export waits for its own reply: an edit's history export
  still on its way no longer answers it with the older diagram, and two
  file saves at once no longer swap results.
- A second edit in one answer is previewed on the first edit's result.
- Stop also ends a running screenshot check; a chat that cannot be saved
  (storage full) can be left with "Continue without saving".
- Small diagrams with shapes count as diagrams; the tool card no longer
  crashes on malformed operations.

Quota and providers:
- Requests that reach the server's own endpoints count toward the quota:
  EdgeOne (always its own endpoint now), a private base URL whatever key
  header is sent, keyless Ollama without a URL. With the quota on, a
  redirect is followed only to a public address. The output cap applies
  to these requests too.
- Stop records the tokens of the steps that finished; the screenshot check
  counts its tokens without counting a request.
- EdgeOne configured only by AI_PROVIDER works, also in the admin Test,
  which forwards the access code. Azure set up only in the admin panel
  works in chat. The Test sends a Bedrock session token.
- The admin panel's Test of an entry without a URL uses the server's URL
  as the server does (no private address check for it); the admin panel
  no longer writes an Ollama URL.

MCP server:
- Write tools and start_session run one at a time, so two at once never
  drop each other's change; a cancelled call waiting its turn is skipped.
  get_diagram and export_diagram keep the session they started with.
- Export to .drawio first gets the user's latest edits from the browser.
- History thumbnails: one that arrives after the next AI write is
  dropped; a sync reply keeps the image; a version that changed only page
  settings is its own entry.
- A diagram over the 10 MB limit is saved without its image, or the user
  is told to download it (the server now answers 413 instead of cutting
  the connection).
- Labels holding text like id='1' or parent='1' are no longer read as
  attributes (a layer or a parent was deleted). A broken bare
  <mxGraphModel> file is refused.
- After a sync reply the tab no longer sends its autosave copy again.

Desktop and files:
- A newer switch of the same preset is not rolled back by an older one
  that failed. .env values with escaped quotes are read whole.
- MCP saved files: a file that could not be read stays protected while a
  folder without permission hides it, and is saved again once deleted.
- The desktop app reports "no chats" only when the count was read and no
  model settings are stored.

* fix: what the batch C review found

- A redirect followed for a custom base URL (quota on) no longer carries
  the user's key or cookies to another origin, as fetch itself does, and
  a private address may redirect to another private one (already counted).
- The admin Test of an Ollama or Vertex AI entry without a URL goes where
  chat sends that entry's key: the environment's own URL variable, for
  Ollama else the local default. The Test of an Ollama Cloud key without
  a URL went to the cloud while chat went to local Ollama.
- Chat saves: each save notes the chat on screen and the order of the
  reads before reading its data. A save read before switching chats no
  longer writes into the chat switched to, and a copy that waited for its
  thumbnail no longer replaces a newer one.
- "Continue without saving" keeps its button when a later auto-save fails,
  and goes away when a new message is sent.
- A screenshot check that was waiting for its image when the user pressed
  Stop stays skipped after the next message.
- MCP History: draw.io's own copy of a diagram (after get_diagram) no
  longer adds an entry without a picture; a change of background is still
  its own version. The tab ignores an edit's answer that arrives after a
  newer AI write loaded.
- Desktop: a deleted preset is not brought back by a failed switch, and a
  request naming no preset does not stop a rollback. An origin keeping
  an access code counts as having settings.
- .env: a quoted value ending in a backslash ("C:\dir\") is read as dotenv
  reads it.
- The tool card no longer crashes on an id that does not turn into text;
  an older Test's success timer no longer ends a newer Test's spinner.
- Tests that passed without their fix now check it.

* fix: what the whole-PR review and Copilot found

- A redirect followed for a custom base URL also drops the key headers of
  providers that do not use Authorization (x-api-key, x-goog-api-key,
  api-key) when it goes to another origin.
- A second Enter or click while a message is being prepared (attachments
  read, diagram exported) no longer sends it twice.
- The admin Test on the deployment's own endpoints (EdgeOne, the server's
  keyless Ollama, an address on the server's network) counts toward the
  quota like a chat; the chat and the Test share one rule for it. The
  Test of an Azure entry set up by AZURE_RESOURCE_NAME only goes where chat
  goes.
- EdgeOne's function is called at the site root again, as on main: EdgeOne
  serves edge functions there, outside Next's base path.
- MCP History: the state before a write is kept unless the browser saved
  no change of the user's since the last server write (draw.io's sync copy
  of it adds no entry), and the dedupe compares the exact text again, so a
  change of page size or other settings only is its own version.
- MCP: an edit keeps untouched labels as draw.io shows them (a literal line
  break in an attribute is a space); a new document of empty pages the
  user named is auto-saved; load_diagram reads only regular files, so a
  pipe cannot hold up the other write tools; the preview does not load
  back its own push still on its way (an undo made meanwhile is saved).
- Two overlapping saves of a new chat no longer reload the canvas from the
  older copy.
- At most three screenshot checks per user turn, passed or failed, as
  documented.
- Desktop: the main window navigates only within the app (draw.io stays in
  its frame); a presets file that is not JSON and cannot be moved aside is
  not overwritten.
- A last self-closing cell with a raw "<" in a value is not taken for cut
  off output.
- README: Material Design shapes load their icons from fonts.gstatic.com.

* fix(chat): stop saving and exporting an idle chat every second

Each auto-save takes a thumbnail, and draw.io's SVG gets a new random id
every time, so latestSvg changed and the diagram context rendered again.
getThumbnailSvg was a new function on every render, the auto-save depends
on it, so the next save was scheduled a second later: a chat with some
diagrams was saved and exported once a second for as long as it was open.
getThumbnailSvg (and the export helper it uses) now keep one identity;
they read refs only.

Found by hand in the production build; the new e2e test fails without the
fix on a production build (as CI runs it).

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
2026-10-05 22:39:32 +09:00
Dayuan Jiang 155ef4f7ac fix: raise the output budget so reasoning models reach the tool call (#927)
* fix: raise the output budget so reasoning models reach the tool call

A reasoning model spends the output budget in order: thinking first, then prose,
then the tool call. With 16000 the thinking alone can consume all of it, so the
turn ends with finishReason "length" before display_diagram is ever called. The
canvas stays empty and nothing surfaces in the UI, because no tool call means no
tool error, and the client never reads finishReason.

Measured on openrouter deepseek/deepseek-v4-flash, the model from the report:
- max_tokens=800 with reasoning on returns reasoning_tokens=800, empty content,
  finish_reason length. So reasoning is billed against this budget, not exempt.
- refining an existing diagram (19k chars of XML in the input) produced 49142
  chars of reasoning, zero tool calls, finishReason "length" at 16000
- the same request at 40000 finished and called edit_diagram with 12 operations

64000 cannot just be sent to every model: bedrock claude-3-haiku caps at 4096,
nova-lite at 10000, and the openrouter deepseek-r1 endpoint counts input and
output against one 64000 ceiling. All three name the real limit in the 400, so
parse it and retry once. Verified: nova-lite logs "64000 rejected, retrying with
10000" and then completes its tool call.

Also expose the budget in Settings. It is sent as a header rather than read from
env only, so desktop users can raise it themselves without an env file.

vercel.json goes back to the 300s it had before #238 traded it for $2-4/month.
That is now Vercel's own default, and billing pauses while the function waits on
the model, so the saving that motivated 120s no longer applies. edgeone.json is
left alone: its 120 may be that platform's actual ceiling.

* fix: only reinterpret an error as a budget rejection when it says so

Review of the first commit found the retry could fire on errors that have
nothing to do with the budget, which would replace a readable provider error
with a truncated response: exactly the symptom this PR exists to remove.

- Drop the generic "lower than N" pattern. For the Bedrock message it was dead
  code, since "model limit of N" matches first with the same number. Left live,
  it would read a number out of any message shaped like "must be lower than 2".
- Skip errors whose status is not 400 or 422, so auth and rate-limit failures
  are never reinterpreted.
- Require the parsed ceiling to be at least 1024. Below that a diagram cannot
  come out whole, so retrying would hide the error behind broken XML.
- Validate MAX_OUTPUT_TOKENS from env the same way as the header, so a stray
  "-1" falls back instead of reaching the provider.

Adds tests for the retry wrapper itself, which had none: it retries once with
the named ceiling, leaves a 401 alone, does not retry when the ceiling is not
smaller, propagates a second rejection, and preserves the other call options.

Re-verified against the live APIs: bedrock nova-lite still logs "64000 rejected,
retrying with 10000" and completes its tool call, and deepseek-v4-flash still
finishes normally at 64000.
2026-08-22 20:47:10 +09:00
Dayuan Jiang 96bca2b37b fix: always send maxOutputTokens; default 16000 (#915)
Unset does not mean the model's maximum — the provider fills in its own, and
Bedrock's is 4096 (measured: converse with no inferenceConfig on
us.anthropic.claude-opus-5 returns stopReason=max_tokens at exactly 4096).

A 30-cell diagram is ~3000 tokens of XML, so anything larger arrived as truncated
JSON and nothing reached the canvas. Small diagrams fitted, which made it look
intermittent.
2026-08-10 17:07:30 +09:00
nb213andbinyangzhu000-sudo c8463aefa7 Add Atlas Cloud provider support (#896)
* Add Atlas Cloud provider support

* fix: restore files removed by Atlas provider PR

---------

Co-authored-by: binyangzhu000-sudo <[email protected]>
2026-07-30 23:27:18 +09:00
4984be82a1 feat: add MiMo (Xiaomi) as AI provider (#887)
* feat: add MiMo (Xiaomi) as AI provider

* fix: correct MiMo default base URL, suggested models, and reasoning support

- Default base URL was the China Token Plan endpoint (tp- keys only);
  switch to https://api.xiaomimimo.com/v1 which works with standard
  pay-as-you-go sk- keys. Token Plan users can override in settings.
- Replace deprecated mimo-v2-flash suggestion with mimo-v2.5
  (v2 series was deprecated on 2026-06-30).
- Use createDeepSeek instead of createOpenAI so reasoning_content is
  passed back during multi-turn tool calls (MiMo returns 400 without
  it), matching the existing Kimi implementation.
- Add mimo to SINGLE_SYSTEM_PROVIDERS so system messages are merged.
- Fold validate-model case into the shared OpenAI-compatible group.
- Drop the Bot icon special case; models.dev serves a real xiaomi logo
  via PROVIDER_LOGO_MAP.
- Document MIMO_API_KEY/MIMO_BASE_URL in env.example and
  docs/{en,cn,ja}/ai-providers.md.

* feat: show base URL hint for MiMo in provider settings

MiMo has two endpoints tied to key type: pay-as-you-go keys (sk-...)
use the default api.xiaomimimo.com/v1, while Token Plan keys (tp-...)
require token-plan-cn.xiaomimimo.com/v1. Surface this under the Base
URL field like the existing MiniMax hint, in all four locales.

---------

Co-authored-by: mapengfei <[email protected]>
Co-authored-by: dayuan.jiang <[email protected]>
2026-07-12 09:10:12 +09:00
Dayuan Jiang 5bfd7b2468 fix: SSRF in /api/parse-url via DNS bypass and redirects (#878)
* fix: resolve DNS before SSRF check and block redirects in parse-url

isPrivateUrl() did string-only hostname matching and never resolved DNS,
so a public-looking name that maps to an internal IP (e.g.
127-0-0-1.sslip.io -> 127.0.0.1) passed the check while fetch/extract
later resolved it and reached internal services (GHSA-wqcv-5qvx-vx75).

- isPrivateUrl is now async: it keeps the fast string/literal-IP path,
  then resolves the hostname via DNS and rejects if any address is private.
- parse-url now fetches the page itself with redirect: "error" and parses
  via extractFromHtml(), since article-extractor follows redirects
  internally and drops a redirect option, which allowed a public URL to
  302 to an internal host.
- Update validate-model call site to await; add regression tests.

* fix: preserve charset detection and block CGNAT range in parse-url SSRF fix

Follow-up to the multi-reviewer review of the SSRF fix:

- Restore charset handling lost when switching from extract() to
  response.text(): non-UTF-8 pages (Shift_JIS/GBK/EUC/Big5, common on CJK
  sites this project targets) decoded as mojibake. Now read the body as
  bytes, detect charset from Content-Type / <meta charset>, and decode
  with TextDecoder before extractFromHtml.
- Wrap extractFromHtml in try/catch: it throws (not returns null) on
  empty/non-HTML bodies, which previously surfaced as a 500 instead of the
  intended 400.
- Add 100.64.0.0/10 (RFC 6598 CGNAT) to isPrivateIp; it is routable inside
  some cloud internal networks and was a residual SSRF target.
- Add tests for CGNAT, its boundaries, 0.0.0.0, and DNS-resolved IPv6.
2026-06-28 12:41:29 +09:00
Dayuan Jiang 80baf43827 fix: remove name-based image-input detection (#874) (#877)
supportsImageInput() guessed multimodal capability from the model id
string. The heuristic misfired on newer models (e.g. kimi-k3.6, qwen36),
either wrongly rejecting images for capable models or letting them through.

The AI SDK does not emit a warning when an OpenAI-compatible endpoint
silently drops an image, so the guess was the only signal — but an
unreliable one. Drop the detection entirely and let the real provider
error surface instead (already translated to a friendly message in
chat-panel.tsx). Validation falls back to "valid" on any model error.

- Remove supportsImageInput() and its pre-send check in chat route
- Drop the vision-capability throw in getValidationModel()
- Remove the corresponding unit tests
2026-06-28 00:26:23 +09:00
YOYO-doandLL 0f9699843f feat: add AIHubMix provider (#865)
* feat: add AIHubMix provider

* feat: load AIHubMix models dynamically

* feat: polish AIHubMix model setup

* feat: send AIHubMix app code

* docs: remove redundant AIHubMix recommendation

---------

Co-authored-by: LL <[email protected]>
2026-06-15 13:54:18 +09:00
Dayuan Jiang 449e4c4e26 feat: add file-based admin settings panel at /admin (#866)
* feat: add file-based admin settings panel at /admin

Settings saved in the panel are written to data/settings.json and
overlaid onto process.env, taking precedence over environment
variables and applying immediately without restart. Enable by setting
ADMIN_PASSWORD; on serverless platforms without persistent disk the
panel degrades to read-only.

* polish: admin panel UI improvements

- Provider logos in credential rows (shared ProviderLogo component,
  extracted from model-config-dialog)
- Scroll-spy active state in the sidebar nav
- Green success state in the save bar that clears after a few seconds
- Wider content column (max-w-6xl) for less wasted space on desktop

* polish: admin panel section toggles and reorder

- Move Quota & Rate Limits to the end of the settings page
- Add enable switches to Observability and Quota sections; default off
  with fields grayed out, auto-on when any field is already configured

* polish: make section enable switch more visible

Wrap the switch in a labeled pill ('Enabled'/'Disabled') with border
and background so the off state is clearly visible.

* refactor: derive admin registry from PROVIDER_INFO, simplify page state

- Provider options, labels, and base-URL placeholders now come from
  PROVIDER_INFO instead of hand-copied lists (fixes SiliconFlow .com/.cn
  placeholder drift; panel names now match the model-config dialog)
- Replace free-text subgroup strings + SUBGROUP_PROVIDERS reverse map
  with a typed provider field on SettingDef
- Precompute SETTINGS_BY_GROUP and PROVIDER_SUBGROUPS at module level
- Merge justSaved into saveMessage, drop unused mainRef, hoist
  fetchSettings out of the component, dedupe savedText logic
- Serialize from SETTINGS_REGISTRY directly; json validators in a map
  instead of a hardcoded key check
- Make allowPrivateUrls a function so ALLOW_PRIVATE_URLS edits in the
  admin panel apply without restart

* feat: graphical model management in admin panel

Replace the provider credential fields and raw AI_MODELS_CONFIG JSON
textarea with a Models section mirroring the in-app model settings UI:
provider instance list with logos, credential fields per provider type,
model add/remove with suggestions, per-model connectivity test, and a
default-provider star.

On save the server derives everything the runtime needs into
settings.json: credential env vars (with _2 suffixes for multiple
instances of one provider), AI_MODELS_CONFIG, and AI_PROVIDER/AI_MODEL
for the default. Secrets round-trip as masked markers and are never
sent back to the browser. The general settings registry now only
covers non-provider settings (generation, access, features,
observability, quota).

* fix: allow testing unsaved providers in admin panel

The test button previously looked up credentials by providerId in the
saved settings, so testing a newly added (unsaved) provider failed with
'Unknown provider or model'. The test endpoint now accepts the client's
current provider state; newly typed secrets are used as-is and masked
markers are resolved against the stored values, so testing works both
before and after saving.

* fix: merge env AI_MODELS_CONFIG with admin panel providers

Previously, saving in the admin panel wrote a complete AI_MODELS_CONFIG
into settings.json, which (by overlay precedence) replaced any config
from .env or ai-models.json — admins lost their env-configured models.

The panel no longer writes AI_MODELS_CONFIG. Instead its providers are
merged with the env baseline at read time in loadRawServerModelsConfig,
and panel credentials go to ADMIN_-prefixed env vars wired up via
apiKeyEnv/baseUrlEnv so they never shadow standard vars. Env-based
providers now appear read-only in the panel, name clashes are rejected,
and a panel default overrides the env default. data/ is now gitignored.

* fix: block global-credential providers already managed via env

Bedrock, Vertex AI, and Ollama credentials live in fixed env vars with
no apiKeyEnv redirection, so a panel instance of one of these would
silently override the credentials that env-configured models rely on.
The API now rejects saving such a provider when the env config already
uses that type, and the Add Provider dropdown disables it with a
'managed via env' note.

* fix: address admin panel review findings

- Security: test-model no longer resolves a stored secret when the
  request's baseUrl/provider differs from the stored entry, closing a
  path where a tampered baseUrl could exfiltrate a saved key
- Save failures are now visible: the save bar shows the error in red
  (was masked by the persistent 'Unsaved changes' text), and per-field
  validation errors from the settings API are surfaced under each field
- The Observability/Quota enable switch is now real: toggling off stages
  deletion of the group's saved values, and the toggle no longer snaps
  back to Enabled after saving
- Env provider's default star is hidden when a panel provider is the
  active default (no more double star)
- Clearing a credential field reverts to the stored value instead of
  silently deleting it; an explicit X button removes a stored secret
- Form inputs are disabled during an in-flight save

* refactor(admin): split 1549-line admin page into focused modules

Extract admin-shared.ts (types + fetch helper), setting-field.tsx
(registry-driven fields), and models-section.tsx (provider/model
manager) from page.tsx. Pure mechanical move, no behavior change.

* feat(admin): share credential fields with user dialog and localize panel

Extract ProviderCredentialsFields (display name + per-provider
credential inputs) used by both the user ModelConfigDialog and the
admin Models panel; secret input passed via renderSecret (plaintext
vs masked), test button via footer slot. Add full i18n for the admin
panel across en/zh/ja/zh-Hant, reusing modelConfig.* for shared parts.

* fix(admin): address Copilot review findings

- Reflect built-in defaults for boolean settings (ALLOW_PRIVATE_URLS
  defaults on) and allow clearing a saved boolean back to default,
  so the SSRF toggle matches actual runtime behavior.
- Harden JSON loading: filter settings values to strings only, and
  schema-validate stored ADMIN_PROVIDERS entries, dropping malformed
  ones instead of letting them reach runtime code.
- Set beforeunload returnValue so the unsaved-changes prompt shows in
  all browsers; reject non-finite numbers in settings validation.
- Fix README/CN/JA docs that claimed the panel auto-generates
  AI_MODELS_CONFIG (providers are merged at read time, not written).
- Add unit tests for corrupted-file value filtering and provider
  schema validation.

* docs: move admin panel details to dedicated docs/{en,cn,ja}/admin-panel.md

The READMEs now carry a short blurb + link, matching the existing
per-topic docs (docker.md, ai-providers.md, ...). Removes the ~22-line
inline section and the duplicated data/settings.json mentions.

* fix(admin): address follow-up Copilot findings on the prior fixes

- loadAdminProviders now validates against a stored-shape schema where
  secrets are plain strings, so a hand-edited ADMIN_PROVIDERS holding an
  {isSet} marker is dropped instead of later crashing maskSecret().
- loadSettings guards against array values (typeof [] === 'object'),
  which would otherwise overlay numeric keys onto process.env.
- Admin SecretInput uses the bare id so the shared component's
  <Label htmlFor> stays associated (only one ProviderDetail mounts).
- Add tests: marker-secret rejection, array-values guard, bedrock
  multi-secret round-trip.
2026-06-15 00:40:35 +09:00
Dayuan Jiang 7b6eb39fa5 fix(parse-url): block SSRF via private/internal URLs (#845)
/api/parse-url accepted any URL the user submitted, fetched it via
@extractus/article-extractor, and returned the body as Markdown. With
ALLOW_PRIVATE_URLS unset (the default after #600) the SSRF guard
short-circuited entirely, so an unauthenticated POST could probe
container ports, read AWS IMDS / GCP metadata, and reach same-VPC
internal services.

- parse-url now always rejects private URLs regardless of
  ALLOW_PRIVATE_URLS. The flag's only legitimate use case is local
  LLM provider baseUrl overrides (validate-model, chat); article
  extraction has no business fetching internal hosts. Local LLM
  setups (Ollama, LM Studio, etc.) are unaffected.
- Strip a trailing dot from the hostname before equality checks so
  the FQDN form "localhost." (which still resolves to 127.0.0.1) is
  caught by the existing string match.

Known follow-ups (not addressed here):
- DNS rebinding: hostnames are matched as strings; a public domain
  resolving to 127.0.0.1 (e.g. localtest.me) is not caught.
- HTTP redirects: @extractus/article-extractor uses cross-fetch with
  default redirect: "follow" and exposes no hook, so a public URL
  302-ing to an internal host still leaks.
2026-05-21 23:54:23 +09:00
Dayuan Jiang 2f2d75961d chore: remove dead code from previous #815 fix attempts (#841)
PR #840 fixed issue #815 in the Electron main process via
will-prevent-unload + preventDefault. The renderer-side workarounds
introduced by previous fix attempts (#642, #648) are no longer needed
and never had effect for their stated purpose.

Removed:
- configuration={ confirmExit: false } in DrawIoEmbed
  confirmExit is not a recognized draw.io config key (zero matches in
  jgraph/drawio source). This was always dead code.

- modified=0 / keepmodified=0 URL parameters
  Per drawio source (app.min.js:14898), these only suppress the
  post-save modified-flag clearing — they do not prevent edits from
  setting editor.modified=true. They were ineffective for blocking
  beforeunload prompts and actually prevented draw.io from clearing
  its modified flag after save.

- canPersist / canPersistChecked state and isIndexedDBUsable() probe
  Their only purpose was gating the dead config above. Removing them
  also removes a startup delay before the iframe renders.

- handleDrawioAutoSave wrapper
  After PR #780 stripped its body, it was a pure passthrough useCallback.
  Now passes handleDiagramAutoSave directly to onAutoSave.

- withDB / isClosingError / resetDBPromise / onversionchange / onclose
  / terminated handlers in lib/session-storage.ts and lib/template-storage.ts
  PR #648 added these to recover from 'IDBDatabase: connection is closing'
  errors that PR #642's first land caused via db.close() on the shared
  singleton. That bug was already fixed in c5de1a1 (re-land of #642),
  three minutes before PR #648 commits started. The retry handlers
  defend against multi-tab / version-change scenarios that cannot occur
  in this single-instance Electron app (requestSingleInstanceLock).
  template-storage.ts copied the same pattern when introduced by #773.

Verified:
- npx tsc --noEmit passes
- Manual test in dev mode: session save/load works, template create works,
  diagram-only persistence works.
2026-05-21 08:37:14 +09:00
果子anddayuan.jiang 4e223b6237 feat: add all Draw.io themes to settings panel (#835)
* feat: add all Draw.io themes to settings panel

Add all available Draw.io themes (kennedy, atlas, dark, min, sketch, simple)
to the settings panel dropdown. Previously only min and sketch were available
as a toggle button.

Changes:
- Replace the Draw.io style toggle button with a dropdown selector
- Expand theme type from "min" | "sketch" to include all 6 themes
- Update localStorage validation to accept all themes
- Update handler from toggle to direct theme selection

Closes #499

* fix: localize theme labels, tighten DrawioTheme typing, sync dark param

- Move DRAWIO_THEMES + DrawioTheme to lib/drawio-themes.ts; reuse in
  page.tsx, chat-panel.tsx and settings-dialog.tsx instead of `string`
- Localize theme dropdown labels (Dark/Minimal/Sketch/Simple) in
  en/zh/ja/zh-Hant; keep proper-noun themes (Kennedy/Atlas) as-is
- Drop trailing colon from drawioStyleDescription and remove dead
  switchTo/minimal/sketch keys in all 4 dictionaries
- Auto-sync drawio dark URL param when ui="dark" is selected
- Add aria-label to drawio-style SelectTrigger

* fix: use kennedy as default theme and label it "Default"

---------

Co-authored-by: dayuan.jiang <[email protected]>
2026-05-15 23:14:20 +09:00
Khanh Thanhanddayuan.jiang 49bfb51b10 feat: Update some tool demos in english about page (#598)
* feat: update about page examples with new diagrams

Replace old cloud architecture and cat examples with ResNet50, RAG,
Authentication, Agile Scrum, and Open Innovation diagrams.
Update all three language versions (EN, CN, JA) for consistency.

* fix: correct ResNet50 prompt text and keep prompts in English

Update the ResNet50 example prompt to match the actual diagram.
Keep all prompt texts in English across CN and JA about pages
since prompts are what users type into the AI.

* docs: update README examples to match about page

Replace GCP, AWS, Azure examples with ResNet50, RAG, Auth,
Agile Scrum, and Open Innovation. Keep Animated Transformer
and Cat Sketch. Keep prompts in English across all versions.

* docs: remove ResNet50 and Agile Scrum examples from READMEs

---------

Co-authored-by: dayuan.jiang <[email protected]>
2026-04-10 13:11:34 +09:00
Octopus 622aa8683d fix: remove redundant status(modified:false) call to restore undo/redo (fixes #779) (#780) 2026-04-10 10:30:05 +09:00
Octopusanddayuan.jiang 6c6cf98019 fix: merge system messages for custom OpenAI-compatible endpoints (#774)
* fix: merge system messages for custom OpenAI endpoints (fixes #734)

When using the OpenAI provider with a custom base URL (e.g., vLLM, LMStudio),
the app sends two system messages to the API. Open-source model chat templates
(Qwen, Llama, etc.) enforce that system messages must appear at the beginning
and reject multiple system message blocks, causing the error:
'System message must be at the beginning.'

Treat custom OpenAI endpoints (client-provided base URL or OPENAI_BASE_URL env
var) the same as other known single-system providers by merging both system
messages into one before sending.

* fix: also detect custom OpenAI endpoint from serverModelConfig.baseUrlEnv

---------

Co-authored-by: dayuan.jiang <[email protected]>
2026-04-03 12:27:29 +09:00
Dayuan Jiang 95e3e97b8b Merge pull request #758 from Alex-wuhu/novita-integration
feat: add Novita AI as LLM provider
2026-03-30 19:44:23 +09:00
Dayuan Jiang 4f41cd1f01 Merge pull request #648 from DayuanJiang/fix/idb-closing-retry
fix: recover IDB closing + restore diagram-only sessions
2026-03-30 19:27:58 +09:00
Alex-wuhuandClaude Opus 4.6 3ca46f44c1 fix: add novita case to validate-model route
Adds the missing 'novita' case to the OpenAI-compatible provider
block in the validate-model API route, fixing 400 errors when
users test their Novita API key in the UI.

Co-Authored-By: Claude Opus 4.6 <[email protected]>
2026-03-29 01:05:40 +08:00
Dayuan Jiang fd84aa70db chore: update volcengine referral URL and sponsor info (#736)
- Replace newyear-referral URL with new Coding Plan referral URL across all files
- Update model name from K2-thinking to glm-4.7
- Add volcengine invite poster to Chinese README and about page
2026-03-16 20:48:39 +09:00
Dayuan Jiang e7453e86a6 feat: add custom system message setting for AI personalization (#728)
* feat: add custom system message setting for AI personalization

Allow users to enter custom instructions via a textarea in Settings
that get appended to the AI's system prompt. Includes server-side
validation (type check + 5000 char limit), localStorage persistence,
and i18n support for all 4 locales.

* fix: add accessibility htmlFor/id pairing on custom system message textarea
2026-03-07 19:07:54 +09:00
be4bc916fd feat: Add support for Chinese AI providers (GLM, Qwen, Kimi, MiniMax, Qiniu)
* feat: Add support for Chinese AI providers (GLM, Qwen, Kimi, MiniMax, Qiniu)

- Add minimax, glm, qwen, qiniu, kimi to ProviderName type
- Add provider configurations to PROVIDER_INFO with default base URLs
- Add suggested models for MiniMax in SUGGESTED_MODELS
- Add minimax/glm/qwen/qiniu/kimi cases to getAIModel using OpenAI-compatible SDK
- Update ALLOWED_CLIENT_PROVIDERS and error messages
- Add environment variable examples to env.example

Fixes: MiniMax API compatibility issue (invalid chat setting 2013)

* fix: Add missing providers to PROVIDER_ENV_VARS type

* fix: Handle null case in PROVIDER_ENV_VARS for new providers

* fix: Add minimax/glm/qwen/kimi/qiniu support to validate-model API

- Add getDefaultBaseUrl helper function
- Add validation cases for new providers in validate-model route

* fix: Add new providers to buildProviderOptions switch case

* fix: Merge multiple system messages into one for minimax/glm/qwen/kimi/qiniu

MiniMax API doesn't support multiple system messages.
This fix combines them into a single message for Chinese providers.

* fix: Handle null provider in system message check

* debug: Add logging for allMessages count

* fix: Use effective provider (including env var fallback) for isSingleSystemProvider check

* fix: apply biome formatting (line-wrapping)

* docs: add Chinese AI providers documentation (MiniMax, GLM, Qwen, Kimi, Qiniu)

- Add i18n translations for new providers in all language dictionaries
- Add provider configuration documentation in en/cn/ja docs

* fix: 改进 PR #722 的代码审查反馈

1. 删除重复的 getDefaultBaseUrl 函数,改用 model-config.ts 的 PROVIDER_INFO
2. validate-model 路由改用 AI SDK 的 createOpenAI + generateText
3. 修复 resolveBaseURL 回退逻辑,传入 PROVIDER_INFO 的 defaultBaseUrl
4. 删除无用的 .bak 备份文件

Co-authored-by: Shinyi <[email protected]>

* fix: 修正中国 AI provider 端点配置

- qiniu: api.qiniucdn.com → api.qnaigc.com
- qwen: dashscope.aliyun.com → dashscope.aliyuncs.com
- 更新 env.example 文档链接

Co-authored-by: Shinyi <[email protected]>

* feat: MiniMax 使用 Anthropic 兼容 API

- MiniMax 改用 createAnthropic (而非 createOpenAI)
- 支持 api.minimax.io/anthropic 和 api.minimaxi.com/anthropic
- 合并多个 system 消息为单个 (MiniMax/GLM/Qwen/Kimi/Qiniu)
- 更新默认模型为 MiniMax-M2.5 系列
- 支持 MINIMAX_BASE_URL 环境变量配置

Co-authored-by: Shinyi <[email protected]>

* docs: 更新 MiniMax 文档

- 添加 Anthropic 兼容 API 说明
- 更新默认模型为 MiniMax-M2.5
- 添加国际版/中国大陆版配置示例
- 更新 env.example 注释

Co-authored-by: Shinyi <[email protected]>

* fix: 完善 MiniMax 双端点支持及问题修复

- 支持 MiniMax Anthropic 兼容端点和 OpenAI 兼容端点自动切换
- 修正默认端点为 api.minimaxi.com (中国大陆可用)
- 修复端点路径缺少 /v1 的问题
- 添加前端 MiniMax logo 映射
- 移除调试日志
- 修正 env.example 默认配置

* chore: clean backup artifacts and align biome formatting

* fix: resolve effectiveProvider bug, deduplicate MiniMax URL logic, fix docs

- Fix critical bug: effectiveProvider was empty during auto-detection,
  causing multi-system-message to be sent to MiniMax (which rejects it).
  Now uses resolved provider from getAIModel instead of re-deriving it.
- Extract normalizeMiniMaxBaseURL() shared helper to eliminate duplication
  between ai-providers.ts and validate-model/route.ts
- Add guard for undefined MiniMax baseURL to prevent hitting api.anthropic.com
- Fix docs: mark China mainland URL as default (matches code behavior)
- Restructure minimax/glm/qwen/kimi/qiniu validation to use shared pattern

Co-Authored-By: Claude Opus 4.6 <[email protected]>

* feat: document MiniMax dual API formats in docs and UI

- Add hint below Base URL input when MiniMax is selected, explaining
  Anthropic-compatible (/anthropic) vs OpenAI-compatible (/v1) endpoints
- Update all 3 ai-providers docs (en/cn/ja) to list all 4 endpoint options
  (China/International × Anthropic/OpenAI)
- Add i18n translations for the hint in all 4 locales

Co-Authored-By: Claude Opus 4.6 <[email protected]>

* refactor: deduplicate PROVIDER_LOGO_MAP, remove unnecessary optional chaining

- Extract PROVIDER_LOGO_MAP to lib/types/model-config.ts (was duplicated
  in model-config-dialog.tsx and model-selector.tsx)
- Remove unnecessary ?. on PROVIDER_INFO.minimax (it's a full Record)

---------

Co-authored-by: msga-oc <[email protected]>
Co-authored-by: Shinyi <[email protected]>
Co-authored-by: dayuan.jiang <[email protected]>
Co-authored-by: Claude Opus 4.6 <[email protected]>
2026-03-07 18:53:47 +09:00
Marvelous Ikponmwosaanddayuan.jiang a5d1554c3f Add Ollama Cloud support with Base URL and API Key configuration (#692)
* Add Ollama Cloud support with Base URL and API Key configuration

* implemented feedback

* fix: use OLLAMA_BASE_URL env fallback in validate-model endpoint

* Remove dedicated Ollama configuration block

* security(ollama): prevent API key leak to client-controlled URLs

* added test

* fix: security hardening and Ollama Cloud default URL

- Add server OLLAMA_API_KEY fallback to validate-model endpoint with
  SSRF guard mirroring ai-providers.ts
- Tighten top-level SSRF exemption: only exempt Ollama when no server
  OLLAMA_API_KEY is configured
- Update Electron config to support OLLAMA_API_KEY env var
- Change default Ollama URL from localhost:11434 to ollama.com/api
  (Ollama Cloud) for web UI users
- Add tests for server env combo, API-key-only, and SSRF guard scenarios

---------

Co-authored-by: dayuan.jiang <[email protected]>
2026-02-26 21:55:21 +09:00
Elshad Humbatli 89d3968733 Fix: return clear error for PDF URLs in content extraction (#694)
* fix: return clear error for PDF urls

* handle timeout thoroughly + use hoisting for user agent
2026-02-13 18:44:59 +09:00
Dayuan Jiang 41dc0b2b42 feat: add Material Design Icons shape library (#688)
* feat: add Material Design Icons shape library (#685)

Add Google Material Design Icons as a new shape library using Google's
CDN. Includes top 300 most popular icons by usage, and updates system
prompts to guide the AI to call get_shape_library before using any icon
library.

* fix: align get_shape_library guidance for non-cloud icon libraries
2026-02-07 13:57:00 +09:00
Dayuan Jiang cd33e131ef feat: add API key load balancing for providers (#676)
Support multiple API keys per provider with random selection for load
balancing. When AI_MODELS_CONFIG has multiple apiKeyEnv values for
a provider, requests will randomly select one available key.

- Update schema to accept apiKeyEnv as string or string array
- Add random key selection in resolveApiKey()
- Update validation to check at least one key exists
- Add tests for array format support
2026-02-02 15:54:35 +09:00
Dayuan Jiang b84b156c8c chore: update Volcengine referral link to new year campaign (#666)
Update the Volcengine referral URL from console.volcengine.com to the
new year referral campaign URL across all documentation and code files.
2026-01-30 14:05:16 +09:00
broBinChen e065d4b727 Merge branch 'DayuanJiang:main' into feat/add-stop-generation-button 2026-01-30 09:34:45 +08:00
shibamudi f2f5ac907d fix: update image imports to use custom Image component with base path handling 2026-01-30 00:02:26 +09:00
xiaobin f8a0ebd149 feat: add stop button to cancel AI generation 2026-01-29 12:40:40 +08:00
Jinze Yu 9398117368 feat(i18n): add Traditional Chinese (zh-Hant) locale
Add full Traditional Chinese support for Hong Kong/Taiwan users by
creating a zh-Hant dictionary and registering the locale across the
web app, metadata, and Electron desktop menu system.
2026-01-27 13:22:33 +09:00
dayuan.jiang be20c09c89 fix: wait for canPersist check before rendering DrawIoEmbed
Fixes diagram not restoring after refresh. The issue was:
1. DrawIoEmbed rendered with canPersist=false
2. Session restore loaded diagram into iframe
3. canPersist changed to true, causing iframe remount
4. New iframe loaded empty, losing the diagram

Now we wait for isIndexedDBUsable() to complete before rendering,
avoiding the remount entirely.
2026-01-27 09:56:33 +09:00
dayuan.jiang 76487fb7ea fix: include canPersist in DrawIoEmbed key for proper remount
Address review comments: canPersist is set async after mount, so DrawIoEmbed
needs to remount when it resolves to apply correct configuration and URL params.
2026-01-27 09:38:35 +09:00
dayuan.jiang c5de1a16ad fix(electron): prevent beforeunload prompt by using autosave
- Enable draw.io autosave and handle autosave events to update chartXML
- Clear modified state after autosave to avoid beforeunload prompts
- Disable confirmExit in draw.io configuration
- Set modified=false and keepmodified=false URL parameters
- Fix session save condition to also save when only diagram exists
- Fix: Do not close shared IndexedDB connection in isIndexedDBUsable()
2026-01-27 09:23:03 +09:00
Dayuan Jiang cb0c0fbcda Revert "fix(electron): prevent beforeunload prompt by using autosave (#642)" (#646)
This reverts commit e7c29fb410.

The PR introduced an IndexedDB error: 'Failed to execute transaction on IDBDatabase: The database connection is closing.'
2026-01-27 09:20:42 +09:00
Dayuan Jiang e7c29fb410 fix(electron): prevent beforeunload prompt by using autosave (#642)
* fix(electron): prevent beforeunload prompt by using autosave

- Enable draw.io autosave and handle autosave events to update chartXML
- Clear modified state after autosave to avoid beforeunload prompts
- Disable confirmExit in draw.io configuration
- Set modified=false and keepmodified=false URL parameters
- Fix session save condition to also save when only diagram exists

* fix: persist diagram-only saves and ref typing

* fix: harden persistence checks and export timeout
2026-01-26 22:04:41 +09:00
Dayuan Jiang a55ef7adf9 feat(electron): bundle draw.io for offline support (#629)
* feat(electron): bundle draw.io for offline support

- Download draw.io static files during CI build (v29.3.5)
- Detect Electron and use local draw.io files instead of CDN
- Add offline=1 parameter to disable external service calls
- Skip /drawio path from i18n middleware redirect
- Add public/drawio/ to .gitignore (downloaded during build)

This allows the Electron app to work completely offline.

* chore: bump version to 0.4.12-beta.3 for offline test

* fix(electron): ad-hoc sign macOS app for bundled draw.io compatibility

* chore: bump version to 0.4.12-beta.4 for ad-hoc sign test

* fix(electron): disable electron-builder signing to use custom ad-hoc signing

* chore: bump version to 0.4.12-beta.5
2026-01-24 12:47:51 +09:00
yujinzeanddayuan.jiang afddba364b Add VLM-based diagram validation (#602)
* [Feature] Add VLM-based diagram validation

Add automatic VLM (Vision Language Model) validation after display_diagram
tool execution. The system captures a screenshot of the rendered diagram,
sends it to a VLM for visual analysis, and uses feedback to improve
diagram quality through the existing retry mechanism.

Changes:
- Add /api/validate-diagram endpoint for VLM validation
- Add diagram-validator.ts for client-side validation orchestration
- Add validation-prompts.ts for VLM system prompts
- Add ValidationCard component to display validation status in chat
- Add PNG capture functionality to diagram context
- Integrate validation into tool handlers with retry support (max 3)
- Add "Improve with Suggestions" button for manual regeneration
- Add settings toggle to enable/disable VLM validation
- Add getValidationModel() helper in ai-providers.ts

* refactor(validation): use AI SDK structured outputs and address review feedback

- Replace generateText + manual JSON parsing with generateObject and Zod schema
  for type-safe structured validation output
- Use AbortSignal.timeout() instead of Promise.race for cleaner timeout handling
- Add timeout validation with minimum 1000ms to handle malformed env values
- Remove unused xml parameter from validateRenderedDiagram API
- Remove parseValidationResponse function (now handled by schema)
- Clear validationStates on session switch and new chat to prevent memory leak
- Update 100ms render delay comment to clarify best-effort heuristic
- Remove unused useEffect import from ValidationCard
- Fix optional chaining lint warning in ValidationCard
- Add unit tests for formatValidationFeedback function

* refactor(validation): use AI SDK experimental_useObject hook instead of raw fetch

- Change API endpoint from generateObject to streamObject for useObject compatibility
- Create useValidateDiagram hook using AI SDK's experimental_useObject for reactive validation
- Update useDiagramToolHandlers to accept validation function as parameter
- Update chat-panel to use new useValidateDiagram hook
- Remove validateRenderedDiagram function from lib/diagram-validator.ts (now in hook)
- Export ValidationResultSchema from API route for client-side use

* fix(validation): extract schema to shared file for client/server compatibility

Move ValidationResultSchema to lib/validation-schema.ts to avoid importing
server-side modules (ai-providers) into client-side code. This fixes the
Turbopack build error caused by the hook importing from the API route.

* fix(validation): use 'Valid' instead of 'Complete' for validation success

Change ValidationCard success label from 'Complete' to 'Valid' to avoid
conflicting with ToolCallCard's 'Complete' badge in E2E tests. This fixes
the diagram-generation E2E test that expects a specific count of 'Complete'
badges.

* fix(validation): add aria-hidden to icons to prevent duplicate ID warning

* fix: improve VLM validation with bug fixes and i18n

- Fix race condition in pendingValidationRef (reject previous pending validation)
- Fix response format consistency (use streaming for all responses)
- Remove dead code (unused lastRequestRef and ValidationRequest interface)
- Consolidate duplicate types (re-export from validation-schema.ts)
- Add 'success_with_warnings' status for valid diagrams with warnings
- Fix tool card auto-collapse (only collapse once, respect user toggle)
- Set VLM validation default to disabled
- Add i18n support for diagram validation settings (en/zh/ja)
- Mark feature as experimental in settings UI

* fix: resolve TypeScript errors in electron-standalone

- Add forwardRef support to ChatInput component with ChatInputRef type
- Copy electron.d.ts to electron-standalone/electron folder
- Exclude electron-standalone from root tsconfig type checking

* fix: return empty string for valid result with no issues in formatValidationFeedback

* feat(i18n): add validation strings for ValidationCard component

- Add validation section to en.json, zh.json, ja.json dictionaries
- Update ValidationCard to use useDictionary hook
- Replace all hardcoded English strings with i18n keys

---------

Co-authored-by: dayuan.jiang <[email protected]>
2026-01-20 20:52:04 +09:00
Dayuan Jiangandgithub-actions[bot] b386dc45e6 fix(quota): bypass quota for users with Bedrock credentials (#621)
* fix(quota): bypass quota for users with Bedrock credentials

The hasOwnApiKey check only looked for x-ai-api-key header, but Bedrock
users provide AWS credentials via x-aws-access-key-id instead. This
caused Bedrock users with their own credentials to still be subject to
quota limits.

* fix(quota): also bypass quota for Vertex AI users

* style: auto-format with Biome

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
2026-01-20 20:27:31 +09:00
Dayuan Jiang 4ace31d412 fix: allow private URLs by default for reverse proxy setups (#600)
* fix: allow private URLs by default for reverse proxy setups

Fixes #588 - Users with reverse proxy setups (e.g., Antigravity tools)
were getting "Invalid base URL" errors due to SSRF protection blocking
private/internal URLs.

Changes:
- Add ALLOW_PRIVATE_URLS env var (defaults to true)
- Set to "false" to enable strict SSRF protection if needed

* refactor: extract isPrivateUrl to shared utility
2026-01-17 23:14:53 +09:00
Jinze Yu 21567744ad fix(chat): repair inconsistent quote escaping in edit_diagram JSON
When the LLM generates edit_diagram tool calls, it sometimes produces
inconsistent quote escaping in XML attributes within JSON strings.
For example: y="-20\" instead of y=\"-20\"

This causes JSON parsing to fail, and jsonrepair cannot fix this pattern.

Added pre-processing regex to detect and fix cases where the opening
quote is unescaped but the closing quote is escaped in attribute values.
2026-01-17 20:56:43 +09:00
Biki Kalitaanddayuan.jiang b23b9179a0 [Feature] Server-side multi-provider/model support (#583)
* [Feature] Server side multi-pvorider/model support

* copilot suggesition implemented

* feat: improve model selector UI and auto-select default server model

- Replace emoji headers with Lucide icons (Monitor, User)
- Fix transition-all to explicit properties per web guidelines
- Use CSS padding instead of hardcoded space indentation
- Add ModelSelectorSectionHeader component for section headers
- Replace Star icon with "default" text label
- Style Configure button with muted text color
- Auto-select default server model when page loads
- Support AI_MODELS_CONFIG env var for cloud deployments
- Support custom apiKeyEnv/baseUrlEnv per provider config

* docs: update server-side multi-model configuration documentation

- Add AI_MODELS_CONFIG env var option for cloud deployments
- Document apiKeyEnv and baseUrlEnv fields for custom env var names
- Document default field for auto-selecting default model
- Remove deprecated version field from examples
- Add field reference table for clarity

---------

Co-authored-by: dayuan.jiang <[email protected]>
2026-01-16 00:58:22 +09:00
ElshadHu 4691a71190 Add base URL + fix thinking 2026-01-14 04:03:28 -05:00
ElshadHu 3b50c08258 Update chat and validation API routes to handle API key 2026-01-14 03:06:13 -05:00
ElshadHu 476ef3c7d1 Merge branch 'main' into feat/gcp-vertex-ai 2026-01-14 01:09:52 -05:00
ElshadHu af913f7223 feat: enable client side config 2026-01-12 14:42:32 -05:00
ElshadHu 0009900b1b feat: add vertex to documentation 2026-01-11 01:34:31 -05:00
ElshadHu 6a20f03805 feat: add Vertex AI UI support and validation endpoint 2026-01-11 00:51:28 -05:00
danqzq c3d3afc202 Remove redundant Close Protection setting 2026-01-10 22:45:52 -05:00
Vishakha AgrawalandBiki Kalita 32d1361ffa Modernize Input Field Scrollbar Design (#536) (#538)
* Modernize Input Field Scrollbar Design #536

* Added Input Field Scrollbar Design #536

* The edit mode for the user scroller already looks good, so there’s no need to change it. The scrollbar-thin class only makes the scrollbar smaller compared to when it’s not present, so it isn’t needed.

---------

Co-authored-by: Biki Kalita <[email protected]>
2026-01-09 20:50:02 +09:00
Dayuan Jiang 22f4c2e270 fix: update SiliconFlow default endpoint to .cn (#543)
SiliconFlow is transitioning from .com to .cn domain. The .cn endpoint
uses Global Traffic Manager (GTM) for better global access, while .com
is being phased out.
2026-01-09 13:21:34 +09:00