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clinch/app/views/shared/_scope_list.html.erb
Dan MilneandClaude Opus 4.8 f65f8da2e7 OIDC: IPv6 loopback DCR, dedup error redirects + scope labels
Security-review follow-ups on the OIDC flows.

IPv6 loopback redirect_uri in dynamic client registration (RFC 8252):
- valid_redirect_uri? compared URI#host, which returns the bracketed "[::1]"
  for IPv6 literals, so http://[::1]:PORT/... was always rejected. Compare
  #hostname (unbracketed) instead, unblocking IPv6-only native clients.

Extract redirect_authorize_error (removes 12 copies of the boilerplate):
- The authorize/consent flows built the error redirect by hand ~a dozen times
  (error_uri = "...?error=..."; += "&error_description=#{CGI.escape ...}"; +=
  state; redirect_to). One helper now composes the query, and — unlike every
  copy — appends "&error=..." when the redirect_uri already has a query string
  instead of a malformed second "?".

Extract token-endpoint helpers (removes ~80 duplicated lines):
- authenticate_token_client: the identical client-auth preamble shared by the
  authorization-code, refresh, and device-code grants.
- render_token_triple: the access + refresh + id_token mint and RFC 6749 §5.1
  response shared by the authorization-code and device-code grants.

Single source of truth for scope descriptions:
- New OidcHelper#scope_description + shared shared/_scope_list partial, used by
  both the browser consent screen and the device authorization screen; drops the
  scope_labels hash and the hard-coded per-scope blocks that would have drifted.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016Q4ATZHoMCWqvSpE2yYoie
2026-07-19 14:14:44 +10:00

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<%# Renders the "this will be able to..." list of granted OAuth scopes. Shared by
the browser consent screen and the device authorization screen so the scope
descriptions (see OidcHelper#scope_description) stay in one place.
Locals: scopes (Array<String>). %>
<ul class="space-y-2">
<% scopes.each do |scope| %>
<li class="flex items-start">
<svg class="h-5 w-5 text-green-500 mr-2 flex-shrink-0" fill="currentColor" viewBox="0 0 20 20">
<path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-9.293a1 1 0 00-1.414-1.414L9 10.586 7.707 9.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z" clip-rule="evenodd"/>
</svg>
<span class="text-sm text-gray-700 dark:text-gray-300"><%= scope_description(scope) %></span>
</li>
<% end %>
</ul>