Document DCR redirect URI allowlist wildcard and query matching behavior

[pvev]

Summary

Documents the OAuth Dynamic Client Registration (DCR) redirect URI allowlist matching behavior the * and ** wildcards, per-URL-component matching, and the rule that query strings match only when a pattern explicitly includes one — so admins know how to write patterns and how to allow query-bearing redirect URIs.

• this is the change in the server: MM-69392 - Make DCR redirect URI allowlist matching URL-component aware mattermost#37170

Ticket Link

https://mattermost.atlassian.net/browse/MM-69392

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: c5bf185e-37e7-4559-86c5-84fcfa6505d1

📥 Commits

Reviewing files that changed from the base of the PR and between 2b08f6f and 0246b8c.

📒 Files selected for processing (1)

• source/administration-guide/configure/integrations-configuration-settings.rst

---

📝 Walkthrough

Walkthrough

Nine lines of documentation are added to integrations-configuration-settings.rst under the DCR redirect URI allowlist section, describing how URI matching works: per-component matching, wildcard semantics (* vs **), restrictions on cross-component wildcard use, and query string matching requirements.

Changes

DCR Redirect URI Allowlist Documentation

Layer / File(s)	Summary
Redirect URI matching rules source/administration-guide/configure/integrations-configuration-settings.rst	Adds documentation specifying per-URL-component matching, wildcard semantics (* matches anything except /, ** includes /), component-local wildcard constraints, and query string matching behaviour including guidance for permitting both query and non-query redirect URIs.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main documentation change about DCR redirect URI allowlist wildcard and query matching behaviour.
Description check	✅ Passed	The description matches the documented DCR redirect URI allowlist matching behaviour and is clearly related to the changeset.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch MM-69392-dcr-uri-fix

---

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

[github-actions]

Newest code from mattermost has been published to preview environment for Git SHA 0246b8c