Closes#988
Unify the "write-only secrets" pattern across MCP services, Models,
WebSearch providers, and DataSources. Fix two related defects:
1. GET responses leaked plaintext credentials — GetMCPServiceByID
while List masked, all Model / WebSearchProvider / DataSource GET
responses unconditionally.
2. When the frontend echoed a masked placeholder back on save, the
update path overwrote the stored secret with the mask — silently
wiping the real credential. MCP surfaced this most visibly:
ListMCPServices masked Token to "first4****last4" and
McpServiceDialog round-tripped that masked string back into the DB.
- internal/types/secret.go introduces the shared sentinel
RedactedSecretPlaceholder = "***" and two helpers:
- IsRedactedOrEmpty(s): true for "" or the sentinel
- PreserveIfRedacted(incoming, existing): merge predicate
- Each resource adds a RedactSensitiveData (mutates-in-place) or
Redacted (returns-a-copy) method and a MergeUpdate contract:
empty or placeholder preserves, any other value replaces, and a
write-only Clear* bool flag (gorm:"-", json omitempty) wipes with
precedence over preserve / replace. Clear* never persists.
- Every GET / List / Create / Update response path now redacts.
VectorStore's pre-existing "***" literal is refactored onto the
shared constant for consistency.
All four dialogs — McpServiceDialog, ModelEditorDialog,
WebSearchSettings, DataSourceEditorDialog — never pre-fill secret
inputs. The stored-state signal is collapsed into the input
placeholder: "•••••••• (Enter new value to replace)" when the server
reports a stored value, falling back to the connector-specific
placeholder otherwise. The input itself carries the "something is
there" cue, matching how password dots render.
An opt-in "Remove this credential" checkbox appears in edit mode when
a value is stored; checking it disables the input and triggers a
danger-themed confirmation dialog before submit. DataSource rolls the
clear up to a connector-level "Remove all credentials" flag since its
credentials are per-connector atomic bundles (e.g. Feishu app_id +
app_secret).
i18n updates across en-US, zh-CN, ko-KR, ru-RU:
secret.storedPlaceholder / clearHint / confirmClearTitle /
confirmClearBody.
- MCP update handler's manual map-to-struct projection was silently
dropping clear_api_key / clear_token / custom_headers on partial
updates. Pull them off the map explicitly.
- MCP configChanged detection now snapshots URL / StdioConfig /
TransportType before the merge so connection recycling still
triggers on real transport changes (not just whenever AuthConfig
is present).
- MCP CustomHeaders: nil preserves existing, non-nil replaces. Was
always overwriting, silently wiping headers on any auth-bearing
update.
- GetMCPServiceByID now redacts (was plaintext while List masked).
- WebSearchProvider update preserves Name / Description when empty
instead of clobbering them.
- WebSearchProvider TestProviderRaw rejects the "***" placeholder up
front with an actionable message rather than forwarding it to the
upstream provider API as a literal key.
- Model builtin hideSensitiveInfo now preserves non-secret metadata
(SupportsVision, Provider, ExtraConfig, InterfaceType,
ParameterSize, EmbeddingParameters) that were previously zeroed
out for builtin model cards.
- Replace local equalStringSlices / equalStringMaps helpers with
stdlib slices.Equal / maps.Equal (Go 1.21+).
- internal/types/{secret,mcp,model,web_search_provider,datasource}_test.go:
table-driven coverage of merge, redact, clear, and write-only flag
invariants for every resource.
- internal/application/service/mcp_service_test.go: full service layer
with a fake repo; covers ListMCPServices / GetMCPServiceByID
redaction, UpdateMCPService partial-update honoring of Clear*,
CustomHeaders preserve-on-nil / replace-on-non-nil, and
clear-flag precedence over submitted values.
Additive only. No changes to request or response JSON shape beyond
the write-only Clear* flags (omitted by default via omitempty). No DB
schema changes. No SDK struct field removals. Existing clients that
don't know about the new flags continue to function unchanged.
- DataSource.Config jsonb at-rest encryption. Pre-existing residual
risk; tracked as a follow-up.
- Renaming VectorStore.MaskSensitiveFields to match the new
RedactSensitiveData / Redacted naming convention. Left alone to
minimize diff; a follow-up rename PR can unify.
ochan.kwon
d869cc1ff6