16203281716

Committed 10 Jul 2025 06:40PM UTC coverage: 28.102% (-46.6%) from 74.666%

Build # 16203281716

Build Type

push

github

Committed by

paulineribeyre

Commit Message

only run test_login_user_with_idp_already_in_db

Run Details

3116 of 11088 relevant lines covered (28.1%)

0.28 hits per line

Source File
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27.08

fence/error_handler.py

import uuid
from http.client import responses as http_responses
from flask import render_template
from werkzeug.exceptions import HTTPException

from authlib.oauth2.rfc6749.errors import OAuth2Error
from cdislogging import get_logger

from fence.errors import APIError
from fence.config import config
import traceback


logger = get_logger(__name__)


def get_error_response(error: Exception):
    """
    Generates a response for the given error with detailed logs and appropriate status codes.

    Args:
        error (Exception): The error that occurred.

    Returns:
        Tuple (str, int): Rendered error HTML and HTTP status code.
    """
    details, status_code = get_error_details_and_status(error)
    support_email = config.get("SUPPORT_EMAIL_FOR_ERRORS")
    app_name = config.get("APP_NAME", "Gen3 Data Commons")

    error_id = _get_error_identifier()
    logger.error(
        "{} HTTP error occurred. ID: {}\nDetails: {}\nTraceback: {}".format(
            status_code, error_id, details, traceback.format_exc()
        )
    )

    # Prepare user-facing message
    message = details.get("message")
    valid_http_status_codes = [
        int(code) for code in list(http_responses.keys()) if int(code) < 500
    ]

    try:
        status_code = int(status_code)
        if status_code not in valid_http_status_codes:
            message = None
    except (ValueError, TypeError):
        message = None
        status_code = 500

    status_code_message = http_responses.get(status_code, "Unknown error code.")

    return (
        render_template(
            "error.html",
            app_name=app_name,
            status_code=status_code,
            status_code_message=status_code_message,
            support_email=support_email,
            error_id=error_id,
            message=message,
        ),
        status_code,
    )


def get_error_details_and_status(error):
    """
    Extracts details and HTTP status code from the given error.

    Args:
        error (Exception): The error to process.

    Returns:
        Tuple (dict, int): Error details as a dictionary and HTTP status code.
    """
    message = error.message if hasattr(error, "message") else str(error)
    if isinstance(error, APIError):
        if hasattr(error, "json") and error.json:
            error.json["message"] = message
            error_response = error.json, error.code
        else:
            error_response = {"message": message}, error.code
    elif isinstance(error, OAuth2Error):
        error_response = {"message": error.description}, error.status_code
    elif isinstance(error, HTTPException):
        error_response = (
            {"message": getattr(error, "description", str(error))},
            error.get_response().status_code,
        )
    else:
        logger.exception("Unexpected exception occurred")
        error_code = 500
        if hasattr(error, "code"):
            error_code = error.code
        elif hasattr(error, "status_code"):
            error_code = error.status_code
        error_response = {"message": message}, error_code

    return error_response


def _get_error_identifier():
    """
    Generates a unique identifier for tracking the error.

    Returns:
        UUID: A unique identifier for the error.
    """
    return uuid.uuid4()

1	import uuid	1✔
2	from http.client import responses as http_responses	1✔
3	from flask import render_template	1✔
4	from werkzeug.exceptions import HTTPException	1✔
5
6	from authlib.oauth2.rfc6749.errors import OAuth2Error	1✔
7	from cdislogging import get_logger	1✔
8
9	from fence.errors import APIError	1✔
10	from fence.config import config	1✔
11	import traceback	1✔
12
13
14	logger = get_logger(__name__)	1✔
15
16
17	def get_error_response(error: Exception):	1✔
18	"""
19	Generates a response for the given error with detailed logs and appropriate status codes.
20
21	Args:
22	error (Exception): The error that occurred.
23
24	Returns:
25	Tuple (str, int): Rendered error HTML and HTTP status code.
26	"""
27	details, status_code = get_error_details_and_status(error)	×
28	support_email = config.get("SUPPORT_EMAIL_FOR_ERRORS")	×
29	app_name = config.get("APP_NAME", "Gen3 Data Commons")	×
30
31	error_id = _get_error_identifier()	×
32	logger.error(	×
33	"{} HTTP error occurred. ID: {}\nDetails: {}\nTraceback: {}".format(
34	status_code, error_id, details, traceback.format_exc()
35	)
36	)
37
38	# Prepare user-facing message
39	message = details.get("message")	×
40	valid_http_status_codes = [	×
41	int(code) for code in list(http_responses.keys()) if int(code) < 500
42	]
43
44	try:	×
45	status_code = int(status_code)	×
46	if status_code not in valid_http_status_codes:	×
47	message = None	×
48	except (ValueError, TypeError):	×
49	message = None	×
50	status_code = 500	×
51
52	status_code_message = http_responses.get(status_code, "Unknown error code.")	×
53
54	return (	×
55	render_template(
56	"error.html",
57	app_name=app_name,
58	status_code=status_code,
59	status_code_message=status_code_message,
60	support_email=support_email,
61	error_id=error_id,
62	message=message,
63	),
64	status_code,
65	)
66
67
68	def get_error_details_and_status(error):	1✔
69	"""
70	Extracts details and HTTP status code from the given error.
71
72	Args:
73	error (Exception): The error to process.
74
75	Returns:
76	Tuple (dict, int): Error details as a dictionary and HTTP status code.
77	"""
78	message = error.message if hasattr(error, "message") else str(error)	×
79	if isinstance(error, APIError):	×
80	if hasattr(error, "json") and error.json:	×
81	error.json["message"] = message	×
82	error_response = error.json, error.code	×
83	else:
84	error_response = {"message": message}, error.code	×
85	elif isinstance(error, OAuth2Error):	×
86	error_response = {"message": error.description}, error.status_code	×
87	elif isinstance(error, HTTPException):	×
88	error_response = (	×
89	{"message": getattr(error, "description", str(error))},
90	error.get_response().status_code,
91	)
92	else:
93	logger.exception("Unexpected exception occurred")	×
94	error_code = 500	×
95	if hasattr(error, "code"):	×
96	error_code = error.code	×
97	elif hasattr(error, "status_code"):	×
98	error_code = error.status_code	×
99	error_response = {"message": message}, error_code	×
100
101	return error_response	×
102
103
104	def _get_error_identifier():	1✔
105	"""
106	Generates a unique identifier for tracking the error.
107
108	Returns:
109	UUID: A unique identifier for the error.
110	"""
111	return uuid.uuid4()	×

uc-cdis / fence / 16203281716

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