mcp: add mcp method and tool logging to authorize (#5668)

## Summary

Adds support for extending authorization log with Model Context Protocol
details.

i.e. 
```json
{
  "level": "info",
  "server-name": "all",
  "service": "authorize",
  "mcp-method": "tools/call",
  "mcp-tool": "describe_table",
  "mcp-tool-parameters": { "table_name": "Categories" },
  "allow": true,
  "allow-why-true": ["email-ok", "mcp-tool-ok"],
  "deny": false,
  "deny-why-false": [],
  "time": "2025-06-24T17:40:41-04:00",
  "message": "authorize check"
}
```

## Related issues

Fixes
https://linear.app/pomerium/issue/ENG-2393/mcp-authorize-each-incoming-request-to-an-mcp-route

## User Explanation

<!-- How would you explain this change to the user? If this
change doesn't create any user-facing changes, you can leave
this blank. If filled out, add the `docs` label -->

## Checklist

- [x] reference any related issues
- [x] updated unit tests
- [x] add appropriate label (`enhancement`, `bug`, `breaking`,
`dependencies`, `ci`)
- [x] ready for review
This commit is contained in:
Denis Mishin 2025-06-24 17:58:51 -07:00 committed by GitHub
parent eacf19cd64
commit 9363457849
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GPG key ID: B5690EEEBB952194
14 changed files with 271 additions and 82 deletions

View file

@ -22,6 +22,9 @@ const (
AuthorizeLogFieldImpersonateSessionID AuthorizeLogField = "impersonate-session-id"
AuthorizeLogFieldImpersonateUserID AuthorizeLogField = "impersonate-user-id"
AuthorizeLogFieldIP AuthorizeLogField = "ip"
AuthorizeLogFieldMCPMethod AuthorizeLogField = "mcp-method"
AuthorizeLogFieldMCPTool AuthorizeLogField = "mcp-tool"
AuthorizeLogFieldMCPToolParameters AuthorizeLogField = "mcp-tool-parameters"
AuthorizeLogFieldMethod AuthorizeLogField = "method"
AuthorizeLogFieldPath AuthorizeLogField = "path"
AuthorizeLogFieldQuery AuthorizeLogField = "query"
@ -72,6 +75,9 @@ var authorizeLogFieldLookup = map[AuthorizeLogField]struct{}{
AuthorizeLogFieldImpersonateSessionID: {},
AuthorizeLogFieldImpersonateUserID: {},
AuthorizeLogFieldIP: {},
AuthorizeLogFieldMCPMethod: {},
AuthorizeLogFieldMCPTool: {},
AuthorizeLogFieldMCPToolParameters: {},
AuthorizeLogFieldMethod: {},
AuthorizeLogFieldPath: {},
AuthorizeLogFieldQuery: {},