* fix(msteams): add SSRF protection to attachment downloads via redirect and DNS validation
The attachment download flow in fetchWithAuthFallback() followed
redirects automatically on the initial fetch without any allowlist
or IP validation. This allowed DNS rebinding attacks where an
allowlisted domain (e.g. evil.trafficmanager.net) could redirect
or resolve to a private IP like 169.254.169.254, bypassing the
hostname allowlist entirely (issue #11811).
This commit adds three layers of SSRF protection:
1. safeFetch() in shared.ts: a redirect-safe fetch wrapper that uses
redirect: "manual" and validates every redirect hop against the
hostname allowlist AND DNS-resolved IP before following it.
2. isPrivateOrReservedIP() + resolveAndValidateIP() in shared.ts:
rejects RFC 1918, loopback, link-local, and IPv6 private ranges
for both initial URLs and redirect targets.
3. graph.ts SharePoint redirect handling now also uses redirect:
"manual" and validates resolved IPs, not just hostnames.
The initial fetch in fetchWithAuthFallback now goes through safeFetch
instead of a bare fetch(), ensuring redirects are never followed
without validation.
Includes 38 new tests covering IP validation, DNS resolution checks,
redirect following, DNS rebinding attacks, redirect loops, and
protocol downgrade blocking.
* fix: address review feedback on SSRF protection
- Replace hand-rolled isPrivateOrReservedIP with SDK's isPrivateIpAddress
which handles IPv4-mapped IPv6, expanded notation, NAT64, 6to4, Teredo,
octal IPv4, and fails closed on parse errors
- Add redirect: "manual" to auth retry redirect fetch in download.ts to
prevent chained redirect attacks bypassing SSRF checks
- Add redirect: "manual" to SharePoint redirect fetch in graph.ts to
prevent the same chained redirect bypass
- Update test expectations for SDK's fail-closed behavior on malformed IPs
- Add expanded IPv6 loopback (0:0:0:0:0:0:0:1) test case
* fix: type fetchMock as typeof fetch to fix TS tuple index error
* msteams: harden attachment auth and graph redirect fetch flow
* changelog(msteams): credit redirect-safeFetch hardening contributors
---------
Co-authored-by: Vincent Koc <vincentkoc@ieee.org>
* fix(tui): strip inbound metadata blocks from user text
* chore: clean up metadata-strip format and changelog credit
* chore: format tui metadata-strip tests
* test(web): isolate local media fixture paths to allow-listed roots
Escape regex metacharacters in display names before constructing RegExp
to prevent runtime errors or unintended matches when names contain special
characters like (, ), ., +, ?, [, etc.
Add test coverage for names with regex metacharacters.
- Add mention parsing and validation logic
- Handle mention entities with proper whitespace
- Validate mention IDs to prevent false positives from code snippets
- Use fake placeholders in tests for privacy
* TypeScript: add extensions to tsconfig and fix type errors
- Add extensions/**/* to tsconfig.json includes
- Export ProviderAuthResult, AnyAgentTool from plugin-sdk
- Fix optional chaining for messageActions across channels
- Add missing type imports (MSTeamsConfig, GroupPolicy, etc.)
- Add type annotations for provider auth handlers
- Fix undici/fetch type compatibility in zalo proxy
- Correct ChannelAccountSnapshot property usage
- Add type casts for tool registrations
- Extract usage view styles and types to separate files
* TypeScript: fix optional debug calls and handleAction guards
- Create shared PNG encoder module (src/media/png-encode.ts)
- Refactor qr-image.ts and live-image-probe.ts to use shared encoder
- Add safeParseJson to utils.ts and plugin-sdk exports
- Update msteams and pairing-store to use centralized safeParseJson
* refactor: consolidate duplicate utility functions
- Add escapeRegExp to src/utils.ts and remove 10 local duplicates
- Rename bash-tools clampNumber to clampWithDefault (different signature)
- Centralize formatError calls to use formatErrorMessage from infra/errors.ts
- Re-export formatErrorMessage from cli/cli-utils.ts to preserve API
* refactor: consolidate remaining escapeRegExp duplicates
* refactor: consolidate sleep, stripAnsi, and clamp duplicates
* fix: use .js extension for ESM imports of RoutePeerKind
The imports incorrectly used .ts extension which doesn't resolve
with moduleResolution: NodeNext. Changed to .js and added 'type'
import modifier.
* fix tsconfig
* refactor: unify peer kind to ChatType, rename dm to direct
- Replace RoutePeerKind with ChatType throughout codebase
- Change 'dm' literal values to 'direct' in routing/session keys
- Keep backward compat: normalizeChatType accepts 'dm' -> 'direct'
- Add ChatType export to plugin-sdk, deprecate RoutePeerKind
- Update session key parsing to accept both 'dm' and 'direct' markers
- Update all channel monitors and extensions to use ChatType
BREAKING CHANGE: Session keys now use 'direct' instead of 'dm'.
Existing 'dm' keys still work via backward compat layer.
* fix tests
* test: update session key expectations for dmdirect migration
- Fix test expectations to expect :direct: in generated output
- Add explicit backward compat test for normalizeChatType('dm')
- Keep input test data with :dm: keys to verify backward compat
* fix: accept legacy 'dm' in session key parsing for backward compat
getDmHistoryLimitFromSessionKey now accepts both :dm: and :direct:
to ensure old session keys continue to work correctly.
* test: add explicit backward compat tests for dmdirect migration
- session-key.test.ts: verify both :dm: and :direct: keys are valid
- getDmHistoryLimitFromSessionKey: verify both formats work
* feat: backward compat for resetByType.dm config key
* test: skip unix-path Nix tests on Windows
