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refactor(web): one error-response path for api_v3 (#624)
* refactor(web): answer unhandled api_v3 errors from one blueprint handler
Fifty-three api_v3 routes ended in a copy of the same catch-all: log the
traceback, return {status, "An error occurred; see logs for details",
details: describe_exception(e)} with a 500. They are replaced by one
errorhandler on the api_v3 blueprint that returns exactly that body.
It lives on the blueprint rather than falling through to app.py's global
handler because the two answers differ: the global one adds
error_code: UNKNOWN_ERROR, and api_client.js sends a body with an
error_code to the error modal and one without to a plain toast. A
blueprint handler also gives tests that mount api_v3 on a bare Flask app
the same answer the real app gives.
Only handlers that were byte-for-byte that shape were removed (matched on
the AST, and each rewritten function re-parsed and compared). Handlers
with their own message, extra keys, operation-history records or cleanup
stay, as does execute_plugin_action's step-1 handler, which sits inside
an `except subprocess.TimeoutExpired` arm that would otherwise turn a
plugin's timeout into a 408.
HTTPExceptions raised inside a route go back as themselves in the global
handler's 4xx shape. Where a removed catch-all used to swallow one (only
delete_plugin_asset's non-silent get_json() is reachable), a malformed
request now gets its 415/400 instead of a 500.
Most of the diff is re-indentation from unwrapping the try blocks;
`git diff -w` shows the real change.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* fix(web): plugin action errors name the real failure, not UnboundLocalError
execute_plugin_action bound a local `logger` in its JSON-parsing arm,
which made `logger` local to the whole function. Every other
`logger.error` in it then raised UnboundLocalError, so a failing OAuth
step-1 script was reported as "UnboundLocalError: cannot access local
variable 'logger'" -- from the step-1 handler, and before the previous
commit from the route's outer catch-all too. Use the module logger.
Found by comparing every api_v3 route's forced-failure response before
and after the catch-all consolidation.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* refactor(web): drop the error category and exception-name code guessing
WebInterfaceError derived an ErrorCategory from every error code and put
it in each structured error body as `error_category`. Nothing reads it:
not the web UI (static/ and templates/), not the tests beyond the ones
pinning the mapping itself, and not any plugin in ledmatrix-plugins. The
enum, the inference table and the JSON key go.
from_exception() could also guess an error code from the exception's
class name ("Config" -> CONFIG_LOAD_FAILED, and so on). Every caller
passes a code, so the guess never ran; error_code is now required.
suggested_fixes stays: the error dialog in static/v3/js/utils/
error_handler.js lists them.
The REST reference loses error_category and says what an unanticipated
exception in an /api/v3 route answers.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* refactor(web): one call for the from_exception error responses
Nine plugin routes built a structured error by hand:
from src.web_interface.errors import WebInterfaceError
error = WebInterfaceError.from_exception(e, ErrorCode.X)
return error_response(error.error_code, error.message,
details=error.details, context=error.context,
status_code=500)
That is now exception_error_response(e, ErrorCode.X) in api_helpers, so
error_response() is the only structured-error entry point the routes
use. The three operation-history routes never passed the context, and
with_context=False keeps their bodies exactly as they were; a test
compares the helper against the hand-written pair for both forms.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* docs(changelog): one api_v3 error-response path
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Chuck
@@ -186,13 +186,6 @@ def get_logs():
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'status': 'error',
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'message': 'Timeout while fetching logs'
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}), 500
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except Exception as e:
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logger.error("%s failed", request.path, exc_info=True)
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return jsonify({
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'status': 'error',
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'message': 'An error occurred; see logs for details',
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'details': describe_exception(e)
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}), 500
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# Multi-Display Sync Endpoints
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@api_v3.route('/sync/status', methods=['GET'])
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def get_sync_status():
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@@ -231,57 +224,49 @@ def get_sync_status():
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@api_v3.route('/cache/list', methods=['GET'])
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def list_cache_files():
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"""List all cache files with metadata"""
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try:
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if not api_v3.cache_manager:
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# Initialize cache manager if not already initialized
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from src.cache_manager import CacheManager
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api_v3.cache_manager = CacheManager()
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if not api_v3.cache_manager:
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# Initialize cache manager if not already initialized
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from src.cache_manager import CacheManager
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api_v3.cache_manager = CacheManager()
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cache_files = api_v3.cache_manager.list_cache_files()
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cache_dir = api_v3.cache_manager.get_cache_dir()
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cache_files = api_v3.cache_manager.list_cache_files()
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cache_dir = api_v3.cache_manager.get_cache_dir()
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return jsonify({
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'status': 'success',
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'data': {
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'cache_files': cache_files,
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'cache_dir': cache_dir,
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'total_files': len(cache_files)
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}
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})
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except Exception as e:
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logger.error('Error in list_cache_files', exc_info=True)
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return jsonify({'status': 'error', 'message': 'An error occurred; see logs for details', 'details': describe_exception(e)}), 500
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return jsonify({
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'status': 'success',
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'data': {
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'cache_files': cache_files,
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'cache_dir': cache_dir,
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'total_files': len(cache_files)
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}
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})
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@api_v3.route('/cache/delete', methods=['POST'])
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def delete_cache_file():
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"""Delete a specific cache file by key"""
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try:
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if not api_v3.cache_manager:
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# Initialize cache manager if not already initialized
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from src.cache_manager import CacheManager
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api_v3.cache_manager = CacheManager()
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if not api_v3.cache_manager:
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# Initialize cache manager if not already initialized
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from src.cache_manager import CacheManager
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api_v3.cache_manager = CacheManager()
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data = request.get_json(silent=True)
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if not data or 'key' not in data:
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return jsonify({'status': 'error', 'message': 'cache key is required'}), 400
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data = request.get_json(silent=True)
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if not data or 'key' not in data:
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return jsonify({'status': 'error', 'message': 'cache key is required'}), 400
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cache_key = data['key']
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cache_key = data['key']
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# The key names the file about to be removed. DiskCache refuses an
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# unusable key on its own, but silently: say so here instead of
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# reporting a deletion that never happened.
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if safe_path_component(cache_key) is None:
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return jsonify({'status': 'error', 'message': 'Invalid cache key'}), 400
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# The key names the file about to be removed. DiskCache refuses an
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# unusable key on its own, but silently: say so here instead of
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# reporting a deletion that never happened.
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if safe_path_component(cache_key) is None:
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return jsonify({'status': 'error', 'message': 'Invalid cache key'}), 400
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# Delete the cache file
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api_v3.cache_manager.clear_cache(cache_key)
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# Delete the cache file
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api_v3.cache_manager.clear_cache(cache_key)
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return jsonify({
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'status': 'success',
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'message': f'Cache file for key "{cache_key}" deleted successfully'
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})
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except Exception as e:
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logger.error('Error in delete_cache_file', exc_info=True)
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return jsonify({'status': 'error', 'message': 'An error occurred; see logs for details', 'details': describe_exception(e)}), 500
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return jsonify({
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'status': 'success',
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'message': f'Cache file for key "{cache_key}" deleted successfully'
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})
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def _errors_cache():
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"""The shared cache the display service publishes its errors to."""
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if not api_v3.cache_manager:
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