Integrate MAS with Synapse

mas/share/templates/pages/policy_violation.html

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+{#
+Copyright 2024, 2025 New Vector Ltd.
+Copyright 2022-2024 The Matrix.org Foundation C.I.C.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE files in the repository root for full details.
+-#}
+
+{% extends "base.html" %}
+
+{% block content %}
+  <header class="page-heading">
+    <div class="icon invalid">
+      {{ icon.error_solid() }}
+    </div>
+
+    <div class="header">
+      <h1 class="title">{{ _("mas.policy_violation.heading") }}</h1>
+      <p class="text">{{ _("mas.policy_violation.description") }}</p>
+    </div>
+  </header>
+
+  <main class="flex flex-col gap-10">
+    <div class="flex items-center justify-center gap-4">
+      <div class="bg-white rounded w-16 h-16 overflow-hidden">
+        {% if client.logo_uri %}
+          <img referrerpolicy="no-referrer" class="w-16 h-16" src="{{ client.logo_uri }}" />
+        {% endif %}
+      </div>
+      <a target="_blank" href="{{ client.client_uri }}" class="cpd-link" data-kind="primary">{{ client.client_name or client.client_id }}</a>
+    </div>
+
+    <div class="flex gap-1 justify-center items-center">
+      <p class="cpd-text-secondary cpd-text-body-md-regular">
+        {{ _("mas.policy_violation.logged_as", username=current_session.user.username) }}
+      </p>
+
+      {{ logout.button(text=_("action.sign_out"), csrf_token=csrf_token, post_logout_action=action, as_link=True) }}
+    </div>
+
+    {# We only show the cancel button if we're in an authorization code flow, not in the device code flow. #}
+    {% if grant.grant_type == "authorization_code" %}
+      {{ back_to_client.link(
+        text=_("action.cancel"),
+        destructive=True,
+        uri=grant.redirect_uri,
+        mode=grant.response_mode,
+        params=dict(error="access_denied", state=grant.state)
+      ) }}
+    {% endif %}
+  </main>
+{% endblock content %}