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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
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"""Client for interacting with the Stackdriver Logging API"""
import traceback
import google.cloud.logging.client
import six
[docs]class HTTPContext(object):
"""HTTPContext defines an object that captures the parameter for the
httpRequest part of Error Reporting API
:type method: string
:param method: The type of HTTP request, such as GET, POST, etc.
:type url: string
:param url: The URL of the request
:type user_agent: string
:param user_agent: The user agent information that is provided with the
request.
:type referrer: string
:param referrer: The referrer information that is provided with the
request.
:type response_status_code: int
:param response_status_code: The HTTP response status code for the request.
:type remote_ip: string
:param remote_ip: The IP address from which the request originated. This
can be IPv4, IPv6, or a token which is derived from
the IP address, depending on the data that has been
provided in the error report.
"""
def __init__(self, method=None, url=None,
user_agent=None, referrer=None,
response_status_code=None, remote_ip=None):
self.method = method
self.url = url
# intentionally camel case for mapping to JSON API expects
# pylint: disable=invalid-name
self.userAgent = user_agent
self.referrer = referrer
self.responseStatusCode = response_status_code
self.remoteIp = remote_ip
[docs]class Client(object):
"""Error Reporting client. Currently Error Reporting is done by creating
a Logging client.
:type project: string
:param project: the project which the client acts on behalf of. If not
passed falls back to the default inferred from the
environment.
:type credentials: :class:`oauth2client.client.OAuth2Credentials` or
:class:`NoneType`
:param credentials: The OAuth2 Credentials to use for the connection
owned by this client. If not passed (and if no ``http``
object is passed), falls back to the default inferred
from the environment.
:type http: :class:`httplib2.Http` or class that defines ``request()``.
:param http: An optional HTTP object to make requests. If not passed, an
``http`` object is created that is bound to the
``credentials`` for the current object.
:type service: str
:param service: An identifier of the service, such as the name of the
executable, job, or Google App Engine service name. This
field is expected to have a low number of values that are
relatively stable over time, as opposed to version,
which can be changed whenever new code is deployed.
:type version: str
:param version: Represents the source code version that the developer
provided, which could represent a version label or a Git
SHA-1 hash, for example. If the developer did not provide
a version, the value is set to default.
:raises: :class:`ValueError` if the project is neither passed in nor
set in the environment.
"""
def __init__(self, project=None,
credentials=None,
http=None,
service=None,
version=None):
self.logging_client = google.cloud.logging.client.Client(
project, credentials, http)
self.service = service if service else self.DEFAULT_SERVICE
self.version = version
DEFAULT_SERVICE = 'python'
def _send_error_report(self, message,
report_location=None, http_context=None, user=None):
"""Makes the call to the Error Reporting API via the log stream.
This is the lower-level interface to build the payload, generally
users will use either report() or report_exception() to automatically
gather the parameters for this method.
Currently this method sends the Error Report by formatting a structured
log message according to
https://cloud.google.com/error-reporting/docs/formatting-error-messages
:type message: string
:param message: The stack trace that was reported or logged by the
service.
:type report_location: dict
:param report_location: The location in the source code where the
decision was made to report the error, usually the place
where it was logged. For a logged exception this would be the
source line where the exception is logged, usually close to
the place where it was caught.
This should be a Python dict that contains the keys 'filePath',
'lineNumber', and 'functionName'
:type http_context: :class`google.cloud.error_reporting.HTTPContext`
:param http_context: The HTTP request which was processed when the
error was triggered.
:type user: string
:param user: The user who caused or was affected by the crash. This can
be a user ID, an email address, or an arbitrary token that
uniquely identifies the user. When sending an error
report, leave this field empty if the user was not
logged in. In this case the Error Reporting system will
use other data, such as remote IP address,
to distinguish affected users.
"""
payload = {
'serviceContext': {
'service': self.service,
},
'message': '{0}'.format(message)
}
if self.version:
payload['serviceContext']['version'] = self.version
if report_location or http_context or user:
payload['context'] = {}
if report_location:
payload['context']['reportLocation'] = report_location
if http_context:
http_context_dict = http_context.__dict__
# strip out None values
payload['context']['httpContext'] = {
key: value for key, value in six.iteritems(http_context_dict)
if value is not None
}
if user:
payload['context']['user'] = user
logger = self.logging_client.logger('errors')
logger.log_struct(payload)
[docs] def report(self, message, http_context=None, user=None):
""" Reports a message to Stackdriver Error Reporting
https://cloud.google.com/error-reporting/docs/formatting-error-messages
:type message: str
:param message: A user-supplied message to report
:type http_context: :class`google.cloud.error_reporting.HTTPContext`
:param http_context: The HTTP request which was processed when the
error was triggered.
:type user: string
:param user: The user who caused or was affected by the crash. This
can be a user ID, an email address, or an arbitrary
token that uniquely identifies the user. When sending
an error report, leave this field empty if the user
was not logged in. In this case the Error Reporting
system will use other data, such as remote IP address,
to distinguish affected users.
Example::
>>> client.report("Something went wrong!")
"""
stack = traceback.extract_stack()
last_call = stack[-2]
file_path = last_call[0]
line_number = last_call[1]
function_name = last_call[2]
report_location = {
'filePath': file_path,
'lineNumber': line_number,
'functionName': function_name
}
self._send_error_report(message,
http_context=http_context,
user=user,
report_location=report_location)
[docs] def report_exception(self, http_context=None, user=None):
""" Reports the details of the latest exceptions to Stackdriver Error
Reporting.
:type http_context: :class`google.cloud.error_reporting.HTTPContext`
:param http_context: The HTTP request which was processed when the
error was triggered.
:type user: string
:param user: The user who caused or was affected by the crash. This
can be a user ID, an email address, or an arbitrary
token that uniquely identifies the user. When sending an
error report, leave this field empty if the user was
not logged in. In this case the Error Reporting system
will use other data, such as remote IP address,
to distinguish affected users.
Example::
>>> try:
>>> raise NameError
>>> except Exception:
>>> client.report_exception()
"""
self._send_error_report(traceback.format_exc(),
http_context=http_context,
user=user)