Add attended prune of retired bao.coulomb.social callbacks from platform-admin

Read-preserve-write via the reviewed loopback helper; keeps the tunnel
callback and every other setting; also captures non-secret OIDC mount config.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 150322@bnt-lap001
Assistant-Session: 16a7b788-374e-4915-a1df-fc87ffd9a5e4

scripts/openbao_platform_admin_callback_prune.py

@@ -0,0 +1,104 @@
+#!/usr/bin/env python3
+"""Silent contained removal of the retired public callbacks from platform-admin.
+
+Removes exactly the two bao.coulomb.social callbacks retired by RPF-WP-0025-T03
+from auth/netkingdom/role/platform-admin. Every other role setting is kept,
+using the reviewed read/payload/write helpers of the loopback-callback script.
+Refuses unless the tunnel callback is present and stays present. Writes
+nothing if the retired callbacks are already gone. One non-secret receipt; no
+output.
+"""
+from datetime import datetime, timezone
+import importlib.util
+import json
+import os
+from pathlib import Path
+import sys
+
+HERE = Path(__file__).resolve().parent
+_spec = importlib.util.spec_from_file_location('loopback', HERE / 'openbao_operator_loopback_callback.py')
+loopback = importlib.util.module_from_spec(_spec)
+_spec.loader.exec_module(loopback)
+
+ROLE = loopback.ROLE
+KEEP = loopback.CALLBACK  # http://127.0.0.1:18200/ui/vault/auth/netkingdom/oidc/callback
+RETIRED = (
+    'https://bao.coulomb.social/ui/vault/auth/netkingdom/oidc/callback',
+    'https://bao.coulomb.social/ui/vault/auth/keycape/oidc/callback',
+)
+Refused = loopback.Refused
+MOUNTS = ('netkingdom', 'keycape')
+CONFIG_FIELDS = ('oidc_discovery_url', 'oidc_client_id', 'default_role', 'bound_issuer',
+                 'oidc_response_mode', 'oidc_response_types', 'jwt_supported_algs',
+                 'provider_config', 'namespace_in_state')
+
+
+def read_mount_configs():
+    """Non-secret OIDC mount settings; OpenBao never returns oidc_client_secret."""
+    import subprocess
+    configs = {}
+    for mount in MOUNTS:
+        try:
+            result = subprocess.run(['bao', 'read', '-format=json', 'auth/%s/config' % mount],
+                                    capture_output=True, check=True, timeout=30)
+            data = json.loads(result.stdout)['data']
+            configs[mount] = {key: data[key] for key in CONFIG_FIELDS if key in data}
+        except Exception:
+            configs[mount] = {'error': 'read_failed'}
+    return configs
+
+
+def prune(read=loopback.read_role, write=loopback.write_role):
+    original = read()
+    uris = original['allowed_redirect_uris']
+    if KEEP not in uris:
+        raise Refused('tunnel_callback_missing')
+    remaining = [uri for uri in uris if uri not in RETIRED]
+    if remaining == uris:
+        return False, uris
+    desired = dict(loopback.payload(original), allowed_redirect_uris=remaining)
+    if loopback.preserved(read()) != loopback.preserved(original):
+        raise Refused('role_changed_before_write')
+    write(desired)
+    after = read()
+    if sorted(after.get('allowed_redirect_uris', [])) != sorted(remaining):
+        raise Refused('readback_callbacks_mismatch')
+    if loopback.preserved(after) != loopback.preserved(original):
+        raise Refused('readback_settings_changed')
+    return True, after['allowed_redirect_uris']
+
+
+def write_receipt(path, status, **extra):
+    fd = os.open(Path(path), os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o600)
+    body = {
+        'schema': 'railiance-platform.openbao-callback-prune.v1',
+        'observed_at': datetime.now(timezone.utc).isoformat(),
+        'role': ROLE, 'retired': list(RETIRED), 'status': status,
+        'credential_values_emitted': False, **extra,
+    }
+    with os.fdopen(fd, 'w', encoding='utf-8') as handle:
+        json.dump(body, handle, indent=2, sort_keys=True)
+        handle.write('\n')
+
+
+def main(argv):
+    if len(argv) != 2 or argv[0] != '--receipt':
+        return 2
+    receipt = argv[1]
+    try:
+        loopback.require_attended()
+        changed, uris = prune()
+        write_receipt(receipt, 'pruned' if changed else 'already_pruned',
+                      changed=changed, allowed_redirect_uris=uris,
+                      mount_configs=read_mount_configs())
+        return 0
+    except Exception as error:
+        try:
+            write_receipt(receipt, loopback.classify(error), changed=False)
+        except Exception:
+            pass
+        return 1
+
+
+if __name__ == '__main__':
+    raise SystemExit(main(sys.argv[1:]))