Files
LocalAI/core/services/chathistory
36307005a9 feat(chat-history): server-side chat history with tombstones (follow-up to #9902) (#12663)
* feat(schema): add Conversation schema for chat history (#9432)

Persist WebUI chat conversations server-side so browser refresh, private
windows, or device changes preserve user history (issue #9432). This
commit adds the on-disk representation:

- Conversation holds id, name, model, opaque history, MCP / sampling
  settings, and timestamps.
- ConversationsFile is the per-user list serialised to JSON.

History is stored as json.RawMessage so the server stays agnostic to
React message shapes (user / assistant / thinking / tool_call /
tool_result mixed with text / image_url / audio_url / file attachments).

Assisted-by: Claude:claude-opus-4-7

Signed-off-by: TLoE419 <tloemizuchizu@gmail.com>

* feat(chathistory): add file-based per-user conversation store (#9432)

File-backed persister for chat history. Each user's conversations live
under {baseDir}/{userID}/conversations.json (anonymous/ when auth is
disabled).

Design choices:
- In-memory cache backed by sync.Mutex so concurrent saves don't
  interleave writes.
- Atomic write via tmp file + os.Rename so a crash mid-save never
  leaves a corrupted history.
- ID validation regex blocks path-traversal payloads at the store
  boundary, in addition to the auth context constraint.

Tests cover round-trip persistence across instances, user isolation,
unsafe-ID rejection, bulk replace migration, and the anonymous fallback
path.

Assisted-by: Claude:claude-opus-4-7

Signed-off-by: TLoE419 <tloemizuchizu@gmail.com>

* feat(api): expose chat conversation CRUD endpoints (#9432)

Wire the chathistory store into the HTTP layer. New endpoints under
/api/conversations:

- GET    /api/conversations        list
- POST   /api/conversations        upsert (id in body)
- DELETE /api/conversations        delete all
- PUT    /api/conversations/bulk   replace entire set (localStorage migration)
- GET    /api/conversations/:id    fetch one
- PUT    /api/conversations/:id    upsert (id in path; path id wins over body)
- DELETE /api/conversations/:id    delete one

All endpoints scope queries to the authenticated user via getUserID(c)
- callers cannot impersonate other users by passing a user_id in the
body. The endpoints are gated behind the new chat_history feature
permission (default ON in APIFeatures), registered through the existing
RouteFeatureRegistry so the unified feature middleware picks them up
automatically.

Application.ChatHistoryStore() returns nil when DisableWebUI is set or
no persistence path is configured, in which case route registration is
skipped entirely rather than registering handlers that always 503.

Also adds the chat-history instruction entry and Swagger tag so the
endpoint surfaces in /api/instructions and /swagger.

Assisted-by: Claude:claude-opus-4-7

Signed-off-by: TLoE419 <tloemizuchizu@gmail.com>

* feat(react-ui): sync chat history to server with localStorage fallback (#9432)

useChat now probes /api/conversations on mount. When the endpoint
responds 200, the server becomes the authoritative source: the hook
merges remote conversations into local state and pushes per-chat PUT
updates on each debounced save. When the endpoint 404s - older LocalAI
deploys or the feature disabled - the hook silently keeps the old
localStorage-only behaviour, so the change is backward-compatible.

Migration: when the server is reachable but empty and the browser has
local conversations with history, the hook fires a single
PUT /api/conversations/bulk to seed the server. The atomic bulk endpoint
avoids partial-upload states where a retry would skip already-uploaded
entries.

Delete operations propagate to the server when it's available; failures
are silently swallowed so the local UI stays responsive on transient
network errors.

Assisted-by: Claude:claude-opus-4-7

Signed-off-by: TLoE419 <tloemizuchizu@gmail.com>

* test(chathistory): rewrite tests in Ginkgo/Gomega

The initial test file used the stdlib testing package (t.Fatalf /
t.Errorf), which is forbidden by the forbidigo linter rule in
.golangci.yml — LocalAI mandates Ginkgo/Gomega for all Go tests (see
.agents/coding-style.md).

Restructured the same six scenarios into Describe / Context / It blocks,
with a chathistory_suite_test.go bootstrap that registers the Ginkgo
fail handler. Test coverage is unchanged: basic CRUD round-trip, cross-
instance persistence, user isolation, unsafe ID rejection (now via
DescribeTable), bulk replace overwrite, and the anonymous fallback
path.

Assisted-by: Claude:claude-opus-4-7

Signed-off-by: TLoE419 <tloemizuchizu@gmail.com>

* refactor(chathistory): switch store to GORM-backed authDB

Addresses mudler's review on #9902. Chat history was the only per-user
state in LocalAI sitting in a separate filesystem store instead of the
shared GORM database — AgentStore and JobStore both live there. Move
it onto Application.authDB so per-user state stays in one place.

* ConversationRecord (GORM model) with composite primary key
  (user_id, conv_id) — React mints IDs locally with no global
  coordination so per-user uniqueness is the natural shape.
* Store.New(db *gorm.DB) replaces Store.New(baseDir string).
  Save / Get / List / Delete / DeleteAll / ReplaceAll keep their
  signatures so HTTP handlers and the React UI are untouched.
* ReplaceAll runs in a transaction with an Unscoped() pre-clear so a
  future retention sweep cannot resurrect a stale ID on re-upload.
* gorm.DeletedAt in the schema means a future retention pruner is a
  one-line query — addresses the second half of the review (unbounded
  in-memory map). The map is gone: reads go straight to the DB.

Trade-off worth flagging in the PR reply: chat history persistence
now requires auth.Enabled = true (that's what initialises
Application.authDB). With auth disabled the React UI transparently
falls back to localStorage, the same path the original PR took on
404. Consistent with AgentStore / JobStore; if a "chat history
always on" mode is preferred we can pull DB init out of auth.InitDB
into a shared helper.

Assisted-by: Claude:claude-opus-4-7 [Read Edit Bash]
Signed-off-by: TLoE419 <tloemizuchizu@gmail.com>

* refactor(schema): drop now-unused ConversationsFile envelope

ConversationsFile was the JSON wrapper for the old file-based chat
history store — a {Conversations: [...], UpdatedAt: ...} pair
serialised to disk under {baseDir}/{userID}/conversations.json. The
previous commit replaced that store with a GORM-backed one that
writes rows directly as ConversationRecord, leaving the envelope
without a consumer.

Assisted-by: Claude:claude-opus-4-7 [Read Edit Bash]
Signed-off-by: TLoE419 <tloemizuchizu@gmail.com>

* test(chathistory): switch tests to testutil.SetupTestDB

Mirror the AgentStore test setup: spin up a PostgreSQL 16 container
via testutil.SetupTestDB(), construct a Store on top of it, exercise
CRUD round-trips. The previous file-based fixtures (TempDir,
filepath.Join checks) are no longer meaningful now that the store
talks GORM.

Tests are skipped on macOS (testcontainers needs Docker) and run on
CI, same as the other GORM-backed suites in the repo.

Also reframed two cases:
* "unsafe IDs" → "malformed IDs" — the DB-backed store doesn't care
  about path traversal, but idRegex still rejects whitespace /
  control characters so IDs stay safe in logs and HTTP responses.
* "anonymous user" no longer pins a directory path (no directory
  exists anymore); instead it checks the round-trip plus the
  per-user isolation guarantee.

Added a DeleteAll round-trip to cover the bulk-clear endpoint.

Assisted-by: Claude:claude-opus-4-7 [Read Edit Bash]
Signed-off-by: TLoE419 <tloemizuchizu@gmail.com>

* test(chathistory): cover the conversation HTTP handlers

The seven /api/conversations handlers had no tests. Inject the
*chathistory.Store into the handlers instead of the whole Application and
move the route table into RegisterChatHistoryRoutes, so a spec can drive
the real registration and middleware chain (auth.Middleware plus the
chat_history feature gate) against an in-memory SQLite auth database.

The new specs cover 401 without credentials on every route, 403 when an
admin revoked chat_history, the CRUD round trip, path id over body id,
400 on malformed ids and bodies, per-user isolation, bulk replace and
delete-all, and that a nil store registers nothing (the UI then falls
back to localStorage).

The handlers' nil-store branches are gone: the routes are only
registered with a store, so those branches could never run.

Assisted-by: Claude Code:claude-opus-5-5
Signed-off-by: Stefan Walcz <stefan.walcz@walcz.de>

* fix(chathistory): make deletions final with tombstones and versions

A conversation deleted on one device came back as soon as a client with
a stale copy wrote it again: Delete soft-deleted the row, and the next
Save went through GORM's upsert, which cleared deleted_at and resurrected
it for every device. The lookup that recovered CreatedAt also ran outside
any transaction, so concurrent writers raced on it.

The server is now authoritative over deletions:

* Delete turns the row into a tombstone: content dropped, deleted_at
  set. It is idempotent, and deleting an id the server has not seen yet
  still records a tombstone, so a delete that overtakes the UI's
  in-flight debounced save of the same chat still wins.
* Save runs in a transaction, refuses a tombstoned id with ErrDeleted
  (HTTP 410 Gone), and bumps the version with a single
  UPDATE ... SET version = version + 1 guarded by deleted_at IS NULL,
  so concurrent writers each count and a delete committed between the
  lookup and the write still wins. Two concurrent first writes of the
  same id retry once (ON CONFLICT DO NOTHING, then update).
* Every row carries a server-assigned version (1 on the first save,
  +1 per write including the delete), returned to the client. A non-zero
  version tells the UI the server has seen a conversation, which is how
  it can tell a never-synced draft from a server-side deletion.
* GET /api/conversations returns the tombstones under "deleted".
* DeleteAll and ReplaceAll leave tombstones too. ReplaceAll no longer
  hard-deletes everything first; it upserts the payload, skips ids that
  were deleted (reported in "skipped"), and tombstones the rest.
* createdAt/updatedAt are stored as the client sends them (only zero
  values are stamped), so clients compare updatedAt from their own
  clocks rather than against the server's.

The store specs now run against PostgreSQL (testcontainers) and, with
the auth tag, SQLite through auth.InitDB, since both back the auth
database. The API specs cover a stale client reconnecting after a remote
deletion. Swagger is regenerated with swag v1.16.6 (json.RawMessage
fields get swaggertype), and the feature is documented, including that
it needs user auth.

Assisted-by: Claude Code:claude-opus-5-5
Signed-off-by: Stefan Walcz <stefan.walcz@walcz.de>

* fix(react-ui): let the server decide which chats were deleted

mergeRemoteAndLocal kept every chat that was only in the browser and
let the server copy win for every shared id. A stale browser therefore
uploaded chats deleted on another device as if they were new drafts,
and a message sent while the list request was still in flight was
replaced by the older server copy and then lost from localStorage too.

The first load now reconciles with the server's tombstones and versions:

* a chat the server lists under "deleted" is dropped locally;
* a chat on both sides keeps the copy with the newer updatedAt, so an
  edit made during the load wins and is uploaded afterwards;
* a chat only in the browser is uploaded only if it was never synced
  (no version). With a version the server has seen it and no longer
  has it, so it is dropped instead of resurrected (this also keeps one
  account's cached chats out of another account on a shared browser);
* deletes made while the list is loading are queued and sent once it
  arrives.

Saves record the version the server returns, and a 410 on save drops
the chat locally instead of retrying it forever. Chats received from
the server count as already sent, so adopting a server copy no longer
echoes it straight back. The bulk localStorage migration is gone: it
replaced the whole server set from a possibly stale browser, and the
per-chat saves already upload never-synced drafts through the tombstone
check.

The Playwright spec drives each case against a stubbed
/api/conversations that follows the server contract.

Assisted-by: Claude Code:claude-opus-5-5
Signed-off-by: Stefan Walcz <stefan.walcz@walcz.de>

* fix(chathistory): keep the LocalAI Assistant toggle on synced chats

master's createNewChat sets localaiAssistant, but serializeChat did not
send it and schema.Conversation had no field for it, so a chat with the
Assistant mode on came back with it off after a reload from the server
(and the local cache dropped it too). Add the field on both sides. The
other fields createNewChat sets were already covered; a handler spec now
round-trips all of them, and the UI spec checks the toggle on the way up
and in the local cache.

Assisted-by: Claude Code:claude-opus-5-5
Signed-off-by: Stefan Walcz <stefan.walcz@walcz.de>

* fix(react-ui): scope chat cache per account, retry unconfirmed deletes

Two gaps in the client half of server-side chat history, both found in
review:

The browser cache was one shared localStorage key. A draft that one
account could not upload (a failed first save) stayed in it, and after
that account signed out and another signed in, the reconcile kept the
unversioned draft and the save pass uploaded it into the second
account. The cache now lives under localai_chats_data:<user id>, Chat
remounts its state when the account changes, and nothing is synced
without a signed-in account. The shared key is left for browser-only
use without auth and is not uploaded when signed in, because nothing
tells which account it belongs to.

Deletes were dropped locally and their DELETE errors swallowed; only
deletes made while the first list was loading were queued, and not
persisted. A delete made while the server was unreachable therefore
came back with the next list. Deletes (single, delete all, and deletes
on the Home page) are now kept as pending deletes in the account's
cache until the server confirms them, override the server list in the
reconcile, and are sent again on the next change, on the online event
and on the next load. While a delete-all is pending no conversation is
uploaded, so a chat started after it is not caught by it.

The Playwright specs replay both review scenarios (account switch after
a failed first save; delete and delete-all while offline) with
counter-checks that the same account keeps and uploads its own draft
and that a confirmed delete is neither re-sent nor resurrected.

Assisted-by: Claude Code:claude-opus-5-5
Signed-off-by: Stefan Walcz <stefan.walcz@walcz.de>

* fix(react-ui): persist cleared chats immediately

Navigation cancels the debounced cache write and can restore unsynced
chats after Clear all. Save the cleared list with its pending deletion
before returning, and cover immediate navigation in the browser spec.

Assisted-by: Codex:GPT-6
Signed-off-by: Stefan Walcz <stefan.walcz@walcz.de>

* test(react-ui): make the chat history sync specs deterministic

- "clear all persists before navigation" opened a single chat, and the menu
  offers no Clear all for one chat, so the spec timed out in every run. It
  now opens two unsynced chats and checks that neither survives. Reverting
  03cd9c115's save in clearAllChats turns it red again.
- "a delete the server confirmed is not sent again" reopened the page as
  soon as the server had the request, before the page had the answer; the
  unconfirmed delete was then rightly sent again (4 of 5 runs). It now waits
  until the cache holds no pending delete.

Docs-Not-Needed: test-only change.

Assisted-by: Claude Code:claude-opus-5-5
Signed-off-by: Stefan Walcz <stefan.walcz@walcz.de>

* fix(chathistory): keep the chat's reasoning effort on the server

reasoningEffort (#12700, #12716) is part of the chat the UI syncs since the
master merge, but schema.Conversation had no field for it, so the server
dropped it and a reload from the server reset the setting. Add the field.

The handler spec that round-trips every chat field now includes
reasoningEffort. A schema test reads serializeChat in useChat.js and fails
for any key the UI sends that schema.Conversation cannot hold, so the next
such drift shows up as a failing test rather than in review (it reports
reasoningEffort on the previous head). Swagger and docs updated.

Assisted-by: Claude Code:claude-opus-5-5
Signed-off-by: Stefan Walcz <stefan.walcz@walcz.de>

* test(chat): use Ginkgo for the schema drift guard

The new drift guard uses testing methods forbidden by repository lint.
Keep its field coverage and fail-fast parser checks in Ginkgo/Gomega.

Assisted-by: nib:gpt-6.1-sol

---------

Signed-off-by: TLoE419 <tloemizuchizu@gmail.com>
Signed-off-by: Stefan Walcz <stefan.walcz@walcz.de>
Co-authored-by: TLoE419 <tloemizuchizu@gmail.com>
Co-authored-by: localai-org-maint-bot <306269227+localai-org-maint-bot@users.noreply.github.com>
Co-authored-by: mudler-agent <mudler-bot@c3os.io>
2026-10-19 22:52:07 +02:00
..