fix(chat): honor the exact id and name filters when listing chats

[marmar9615-cloud]

Summary

GET /api/v1/chats documents id and name as exact-match filters that take precedence over keywords (docs/references/http_api_reference.md, list chat assistants), the Python route in api/apps/restful_apis/chat_api.py reads both, blanks keywords when either is present, and applies them in the tenant and owner_ids branches alike, and the Python SDK's list_chats sends both. The Go handler read keywords, paging, ordering and owner_ids but never id or name, so ?id=<chat_id> and ?name=<name> returned every chat the caller can see with the full total. The parameter parsing came in with #14026 without the two exact filters.

The handler now reads id and name and blanks keywords when either is set, ChatService.ListChats takes and forwards both, and ChatDAO.ListByTenantIDs and ListByOwnerIDs add dialog.id = ? and dialog.name = ? predicates next to the keyword predicate, ahead of the count, so the reported total follows the filtered rows. An empty value means absent, as with keywords. The MCP wrapper MCPListChats passes empty filters and keeps its signature.

GET /api/v1/chats?id=<chat_id>          tenant holds chat-a and chat-b
before  {"code": 0, "data": {"chats": [chat-a, chat-b], "total": 2}}
after   {"code": 0, "data": {"chats": [chat-a], "total": 1}}

GET /api/v1/chats?name=alpha
before  both chats, total 2
after   the chat named alpha, total 1

GET /api/v1/chats?id=unknown
before  both chats, total 2
after   {"code": 0, "data": {"chats": [], "total": 0}}

TestChatDAOListExactIDAndNameFilters in internal/dao/chat_test.go exercises id, name and an unknown id against both DAO branches on SQLite and checks rows and total together. Its fixture includes a chat named alpha two beside alpha, so a substring predicate in place of the exact one fails the name case. TestChatServiceListChatsExactFilters in internal/service/chat_list_test.go covers the service pass-through with owner_ids absent and present. With the signatures threaded and no predicates, the DAO cases fail with rows [c-1 c-2 c-3] total 3, want rows [c-2] total 1 and the service case with expected only chat-2 for id filter, got total=2. The http-api tests for these filters were moved to the get endpoint plus keywords in #13881, so test/testcases/restful_api/test_chats.py::test_chat_crud_cycle now creates a second chat in the same tenant before its ?id= lookup, which makes the exact-match assertion discriminate on the Go backend while staying valid on Python, and adds a lookup that sends id together with a keywords value matching only the other chat, which passes only when the exact filter takes precedence.

Locally go test ./internal/dao/ ./internal/service/ -count=1 passes, gofmt -l lists nothing, go vet on internal/dao, internal/service and internal/handler is clean, go build ./internal/... succeeds under GOOS=linux, and ruff check and ruff format --check pass on the Python file. In CI the DAO and service packages run in the Go unit step of ragflow_tests_infinity and ragflow_tests_elasticsearch, which exclude only internal/storage and internal/handler from the package list, the ragflow_go_integration job compiles internal/handler, and because this PR touches test/** the restful_api suite runs in both proxy modes in ragflow_tests_infinity. All of it runs once a maintainer adds the ci label.

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📒 Files selected for processing (5)

• internal/dao/chat.go
• internal/dao/chat_test.go
• internal/service/chat.go
• internal/service/chat_list_test.go
• test/testcases/restful_api/test_chats.py

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📝 Walkthrough

Walkthrough

Chat listing now accepts exact id and name filters. The handler clears fuzzy keywords when either filter is set. The service forwards the filters to tenant and owner queries, which apply exact matches.

Changes

Chat listing filters

Layer / File(s)	Summary
DAO filter queries internal/dao/chat.go, internal/dao/chat_test.go	Tenant and owner queries accept optional exact ID and name filters. Tests check matching rows, totals, unknown IDs, and ordering.
Service and handler filter flow internal/handler/chat.go, internal/service/chat.go, internal/handler/mcp_server.go	The handler reads the exact filters and clears keywords when either is set. The service forwards the filters to both DAO query paths. MCP listing supplies the additional argument required by the updated service signature.
Filter behavior validation internal/service/chat_list_test.go, test/testcases/restful_api/test_chats.py	Service tests cover exact filters and existing listing behavior. The REST test checks ID filtering and precedence over a conflicting keyword.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~15 minutes

Change: Bug fix

Sequence Diagram(s)

sequenceDiagram
  participant RESTClient
  participant ListChatsHandler
  participant ChatService
  participant ChatDAO
  participant Database
  RESTClient->>ListChatsHandler: Send id, name, and keywords
  ListChatsHandler->>ListChatsHandler: Clear keywords when id or name is set
  ListChatsHandler->>ChatService: Pass id and name to ListChats
  ChatService->>ChatDAO: Pass filters to tenant or owner query
  ChatDAO->>Database: Apply exact dialog.id and dialog.name matches
  Database-->>ChatDAO: Return matching rows and total
  ChatDAO-->>ChatService: Return filtered chats
  ChatService-->>ListChatsHandler: Return chat list
  ListChatsHandler-->>RESTClient: Return filtered response

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Suggested reviewers: flyingwhit

Merge Risk: ⚪ Minimal · up to 67803

The exact chat filters have no established merge-blocking defect. The reported test compilation concern does not apply to the affected calls; merge after normal checks pass.

Security Architecture Review

Security architecture risk: ⚪ Minimal · up to 67803

The exact filters preserve the caller’s existing access restrictions and use parameterized database predicates. No material security risk introduced or worsened by this change was identified.

Retained concerns
No architecture-level concerns identified.

Security review details

Security Blast Radius

• inferred — The new selectors can change which already-authorized chat rows and totals a caller receives, but do not grant access to another tenant or owner. Removing keyword matching can change results relative to a keyword-only request, while preserving the existing authorization envelope.

Trust Boundaries and Controls

• observed — The request’s exact selectors remain separate from identity and ownership authority: GetUser supplies identity, the service filters requested owners against accessible identities, and the DAO enforces scoped predicates with bound selector values. The base-to-head comparison preserves these controls.

Resilience and Maintainability Implications

• observed — Failure to resolve accessible owners returns an error rather than falling back to unfiltered access; an empty accessible-owner set returns no chats. Exact filtering does not alter either failure-containment behavior.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 55.56% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 18 functions across 7 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main change: honoring exact ID and name filters when listing chats.
Description check	✅ Passed	The description includes the required Summary section and provides clear background, implementation details, test coverage, validation results, and CI context.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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_{A rabbit checks the chat list bright,
Exact names and IDs sit right.
Fuzzy words step back when filters show,
Tenant and owner queries know.
The rows return, counted just so.}

_{Comment @coderabbitai help to get the list of available commands.}

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Actionable comments posted: 1

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Inline comments:
In `@internal/dao/chat.go`:
- Line 58: Update the ListByTenantIDs and ListByOwnerIDs call sites in
internal/dao/search_test.go to match their current signatures, passing empty
strings for id and name when no exact filters are needed. Adjust all remaining
outdated test invocations, including the calls around lines 83, 103, 121, and
127, without changing their existing test behavior.

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Configuration used: Organization UI

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📥 Commits

Reviewing files that changed from the base of the PR and between 62d01d3 and 13d1d16.

📒 Files selected for processing (7)

• internal/dao/chat.go
• internal/dao/chat_test.go
• internal/handler/chat.go
• internal/handler/mcp_server.go
• internal/service/chat.go
• internal/service/chat_list_test.go
• test/testcases/restful_api/test_chats.py

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