747 lines
23 KiB
Python
747 lines
23 KiB
Python
"""
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raven.base
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~~~~~~~~~~
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:copyright: (c) 2010-2012 by the Sentry Team, see AUTHORS for more details.
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:license: BSD, see LICENSE for more details.
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"""
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from __future__ import absolute_import
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import zlib
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import logging
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import os
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import sys
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import time
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import uuid
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import warnings
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from datetime import datetime
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from functools import wraps
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from pprint import pformat
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from types import FunctionType
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import raven
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from raven.conf import defaults
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from raven.conf.remote import RemoteConfig
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from raven.context import Context
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from raven.exceptions import APIError, RateLimited
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from raven.utils import six, json, get_versions, get_auth_header, merge_dicts
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from raven.utils.encoding import to_unicode
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from raven.utils.serializer import transform
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from raven.utils.stacks import get_stack_info, iter_stack_frames, get_culprit
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from raven.transport.registry import TransportRegistry, default_transports
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__all__ = ('Client',)
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__excepthook__ = None
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PLATFORM_NAME = 'python'
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# singleton for the client
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Raven = None
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class ModuleProxyCache(dict):
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def __missing__(self, key):
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module, class_name = key.rsplit('.', 1)
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handler = getattr(__import__(
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module, {}, {}, [class_name]), class_name)
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self[key] = handler
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return handler
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class ClientState(object):
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ONLINE = 1
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ERROR = 0
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def __init__(self):
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self.status = self.ONLINE
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self.last_check = None
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self.retry_number = 0
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self.retry_after = 0
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def should_try(self):
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if self.status == self.ONLINE:
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return True
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interval = self.retry_after or min(self.retry_number, 6) ** 2
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if time.time() - self.last_check > interval:
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return True
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return False
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def set_fail(self, retry_after=0):
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self.status = self.ERROR
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self.retry_number += 1
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self.last_check = time.time()
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self.retry_after = retry_after
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def set_success(self):
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self.status = self.ONLINE
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self.last_check = None
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self.retry_number = 0
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self.retry_after = 0
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def did_fail(self):
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return self.status == self.ERROR
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class Client(object):
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"""
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The base Raven client.
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Will read default configuration from the environment variable
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``SENTRY_DSN`` if available.
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>>> from raven import Client
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>>> # Read configuration from ``os.environ['SENTRY_DSN']``
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>>> client = Client()
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>>> # Specify a DSN explicitly
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>>> client = Client(dsn='https://public_key:secret_key@sentry.local/project_id')
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>>> # Record an exception
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>>> try:
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>>> 1/0
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>>> except ZeroDivisionError:
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>>> ident = client.get_ident(client.captureException())
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>>> print "Exception caught; reference is %s" % ident
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"""
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logger = logging.getLogger('raven')
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protocol_version = '6'
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_registry = TransportRegistry(transports=default_transports)
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def __init__(self, dsn=None, raise_send_errors=False, transport=None,
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install_sys_hook=True, **options):
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global Raven
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o = options
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self.configure_logging()
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self.raise_send_errors = raise_send_errors
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# configure loggers first
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cls = self.__class__
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self.state = ClientState()
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self.logger = logging.getLogger(
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'%s.%s' % (cls.__module__, cls.__name__))
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self.error_logger = logging.getLogger('sentry.errors')
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self.uncaught_logger = logging.getLogger('sentry.errors.uncaught')
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self._transport_cache = {}
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self.set_dsn(dsn, transport)
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self.include_paths = set(o.get('include_paths') or [])
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self.exclude_paths = set(o.get('exclude_paths') or [])
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self.name = six.text_type(o.get('name') or o.get('machine') or defaults.NAME)
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self.auto_log_stacks = bool(
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o.get('auto_log_stacks') or defaults.AUTO_LOG_STACKS)
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self.capture_locals = bool(
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o.get('capture_locals', defaults.CAPTURE_LOCALS))
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self.string_max_length = int(
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o.get('string_max_length') or defaults.MAX_LENGTH_STRING)
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self.list_max_length = int(
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o.get('list_max_length') or defaults.MAX_LENGTH_LIST)
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self.site = o.get('site')
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self.include_versions = o.get('include_versions', True)
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self.processors = o.get('processors')
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if self.processors is None:
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self.processors = defaults.PROCESSORS
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context = o.get('context')
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if context is None:
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context = {'sys.argv': sys.argv[:]}
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self.extra = context
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self.tags = o.get('tags') or {}
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self.release = o.get('release') or os.environ.get('HEROKU_SLUG_COMMIT')
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self.module_cache = ModuleProxyCache()
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if not self.is_enabled():
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self.logger.info(
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'Raven is not configured (logging is disabled). Please see the'
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' documentation for more information.')
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if Raven is None:
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Raven = self
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self._context = Context()
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if install_sys_hook:
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self.install_sys_hook()
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def set_dsn(self, dsn=None, transport=None):
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if dsn is None and os.environ.get('SENTRY_DSN'):
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msg = "Configuring Raven from environment variable 'SENTRY_DSN'"
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self.logger.debug(msg)
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dsn = os.environ['SENTRY_DSN']
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if dsn not in self._transport_cache:
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if dsn is None:
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result = RemoteConfig(transport=transport)
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else:
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result = RemoteConfig.from_string(
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dsn,
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transport=transport,
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transport_registry=self._registry,
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)
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self._transport_cache[dsn] = result
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self.remote = result
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else:
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self.remote = self._transport_cache[dsn]
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self.logger.debug("Configuring Raven for host: {0}".format(self.remote))
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def install_sys_hook(self):
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global __excepthook__
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if __excepthook__ is None:
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__excepthook__ = sys.excepthook
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def handle_exception(*exc_info):
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self.captureException(exc_info=exc_info)
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__excepthook__(*exc_info)
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sys.excepthook = handle_exception
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@classmethod
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def register_scheme(cls, scheme, transport_class):
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cls._registry.register_scheme(scheme, transport_class)
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def configure_logging(self):
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for name in ('raven', 'sentry'):
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logger = logging.getLogger(name)
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if logger.handlers:
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continue
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logger.addHandler(logging.StreamHandler())
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logger.setLevel(logging.INFO)
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def get_processors(self):
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for processor in self.processors:
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yield self.module_cache[processor](self)
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def get_module_versions(self):
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if not self.include_versions:
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return {}
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version_info = sys.version_info
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modules = get_versions(self.include_paths)
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modules['python'] = '{0}.{1}.{2}'.format(
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version_info[0], version_info[1], version_info[2],
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)
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return modules
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def get_ident(self, result):
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"""
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Returns a searchable string representing a message.
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>>> result = client.capture(**kwargs)
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>>> ident = client.get_ident(result)
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"""
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warnings.warn('Client.get_ident is deprecated. The event ID is now returned as the result of capture.',
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DeprecationWarning)
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return result
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def get_handler(self, name):
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return self.module_cache[name](self)
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def get_public_dsn(self, scheme=None):
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"""
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Returns a public DSN which is consumable by raven-js
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>>> # Return scheme-less DSN
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>>> print client.get_public_dsn()
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>>> # Specify a scheme to use (http or https)
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>>> print client.get_public_dsn('https')
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"""
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if not self.is_enabled():
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return
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url = self.remote.get_public_dsn()
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if not scheme:
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return url
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return '%s:%s' % (scheme, url)
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def build_msg(self, event_type, data=None, date=None,
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time_spent=None, extra=None, stack=None, public_key=None,
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tags=None, fingerprint=None, **kwargs):
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"""
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Captures, processes and serializes an event into a dict object
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The result of ``build_msg`` should be a standardized dict, with
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all default values available.
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"""
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# create ID client-side so that it can be passed to application
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event_id = uuid.uuid4().hex
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data = merge_dicts(self.context.data, data)
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data.setdefault('tags', {})
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data.setdefault('extra', {})
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if '.' not in event_type:
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# Assume it's a builtin
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event_type = 'raven.events.%s' % event_type
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handler = self.get_handler(event_type)
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result = handler.capture(**kwargs)
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# data (explicit) culprit takes over auto event detection
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culprit = result.pop('culprit', None)
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if data.get('culprit'):
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culprit = data['culprit']
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for k, v in six.iteritems(result):
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if k not in data:
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data[k] = v
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# auto_log_stacks only applies to events that are not exceptions
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# due to confusion about which stack is which and the automatic
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# application of stacktrace to exception objects by Sentry
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if stack is None and 'exception' not in data:
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stack = self.auto_log_stacks
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if stack and 'stacktrace' not in data:
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if stack is True:
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frames = iter_stack_frames()
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else:
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frames = stack
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stack_info = get_stack_info(
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frames,
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transformer=self.transform,
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capture_locals=self.capture_locals,
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)
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data.update({
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'stacktrace': stack_info,
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})
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if self.include_paths:
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for frame in self._iter_frames(data):
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if frame.get('in_app') is not None:
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continue
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path = frame.get('module')
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if not path:
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continue
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if path.startswith('raven.'):
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frame['in_app'] = False
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else:
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frame['in_app'] = (
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any(path.startswith(x) for x in self.include_paths) and
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not any(path.startswith(x) for x in self.exclude_paths)
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)
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if not culprit:
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if 'stacktrace' in data:
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culprit = get_culprit(data['stacktrace']['frames'])
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elif 'exception' in data:
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stacktrace = data['exception']['values'][0].get('stacktrace')
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if stacktrace:
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culprit = get_culprit(stacktrace['frames'])
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if not data.get('level'):
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data['level'] = kwargs.get('level') or logging.ERROR
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if not data.get('server_name'):
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data['server_name'] = self.name
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if not data.get('modules'):
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data['modules'] = self.get_module_versions()
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if self.release is not None:
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data['release'] = self.release
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data['tags'] = merge_dicts(self.tags, data['tags'], tags)
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data['extra'] = merge_dicts(self.extra, data['extra'], extra)
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# Legacy support for site attribute
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site = data.pop('site', None) or self.site
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if site:
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data['tags'].setdefault('site', site)
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if culprit:
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data['culprit'] = culprit
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if fingerprint:
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data['fingerprint'] = fingerprint
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# Run the data through processors
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for processor in self.get_processors():
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data.update(processor.process(data))
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if 'message' not in data:
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data['message'] = kwargs.get('message', handler.to_string(data))
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# tags should only be key=>u'value'
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for key, value in six.iteritems(data['tags']):
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data['tags'][key] = to_unicode(value)
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# extra data can be any arbitrary value
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for k, v in six.iteritems(data['extra']):
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data['extra'][k] = self.transform(v)
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# It's important date is added **after** we serialize
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data.setdefault('project', self.remote.project)
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data.setdefault('timestamp', date or datetime.utcnow())
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data.setdefault('time_spent', time_spent)
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data.setdefault('event_id', event_id)
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data.setdefault('platform', PLATFORM_NAME)
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return data
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def transform(self, data):
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return transform(
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data, list_max_length=self.list_max_length,
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string_max_length=self.string_max_length)
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@property
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def context(self):
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"""
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Updates this clients thread-local context for future events.
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>>> def view_handler(view_func, *args, **kwargs):
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>>> client.context.merge(tags={'key': 'value'})
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>>> try:
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>>> return view_func(*args, **kwargs)
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>>> finally:
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>>> client.context.clear()
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"""
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return self._context
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def user_context(self, data):
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"""
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Update the user context for future events.
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>>> client.user_context({'email': 'foo@example.com'})
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"""
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return self.context.merge({
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'user': data,
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})
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def http_context(self, data, **kwargs):
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"""
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Update the http context for future events.
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>>> client.http_context({'url': 'http://example.com'})
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"""
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return self.context.merge({
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'request': data,
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})
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def extra_context(self, data, **kwargs):
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"""
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Update the extra context for future events.
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>>> client.extra_context({'foo': 'bar'})
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"""
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return self.context.merge({
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'extra': data,
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})
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def tags_context(self, data, **kwargs):
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"""
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Update the tags context for future events.
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>>> client.tags_context({'version': '1.0'})
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"""
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return self.context.merge({
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'tags': data,
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})
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|
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def capture(self, event_type, data=None, date=None, time_spent=None,
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extra=None, stack=None, tags=None, **kwargs):
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"""
|
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Captures and processes an event and pipes it off to SentryClient.send.
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To use structured data (interfaces) with capture:
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>>> capture('raven.events.Message', message='foo', data={
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>>> 'request': {
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>>> 'url': '...',
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>>> 'data': {},
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>>> 'query_string': '...',
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>>> 'method': 'POST',
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>>> },
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>>> 'logger': 'logger.name',
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>>> }, extra={
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>>> 'key': 'value',
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>>> })
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|
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The finalized ``data`` structure contains the following (some optional)
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builtin values:
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>>> {
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>>> # the culprit and version information
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>>> 'culprit': 'full.module.name', # or /arbitrary/path
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>>>
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>>> # all detectable installed modules
|
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>>> 'modules': {
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>>> 'full.module.name': 'version string',
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>>> },
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>>>
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>>> # arbitrary data provided by user
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>>> 'extra': {
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>>> 'key': 'value',
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>>> }
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>>> }
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:param event_type: the module path to the Event class. Builtins can use
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shorthand class notation and exclude the full module
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path.
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:param data: the data base, useful for specifying structured data
|
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interfaces. Any key which contains a '.' will be
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assumed to be a data interface.
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|
:param date: the datetime of this event
|
|
:param time_spent: a integer value representing the duration of the
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event (in milliseconds)
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|
:param extra: a dictionary of additional standard metadata
|
|
:param stack: a stacktrace for the event
|
|
:param tags: dict of extra tags
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:return: a tuple with a 32-length string identifying this event
|
|
"""
|
|
|
|
if not self.is_enabled():
|
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return
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|
|
data = self.build_msg(
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event_type, data, date, time_spent, extra, stack, tags=tags,
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**kwargs)
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|
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self.send(**data)
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return data['event_id']
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|
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def is_enabled(self):
|
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"""
|
|
Return a boolean describing whether the client should attempt to send
|
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events.
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|
"""
|
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return self.remote.is_active()
|
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|
|
def _iter_frames(self, data):
|
|
if 'stacktrace' in data:
|
|
for frame in data['stacktrace']['frames']:
|
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yield frame
|
|
if 'exception' in data:
|
|
for frame in data['exception']['values'][0]['stacktrace']['frames']:
|
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yield frame
|
|
|
|
def _successful_send(self):
|
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self.state.set_success()
|
|
|
|
def _failed_send(self, exc, url, data):
|
|
retry_after = 0
|
|
if isinstance(exc, APIError):
|
|
if isinstance(exc, RateLimited):
|
|
retry_after = exc.retry_after
|
|
self.error_logger.error(
|
|
'Sentry responded with an API error: %s(%s)', type(exc).__name__, exc.message)
|
|
else:
|
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self.error_logger.error(
|
|
'Sentry responded with an error: %s (url: %s)\n%s',
|
|
exc, url, pformat(data),
|
|
exc_info=True
|
|
)
|
|
|
|
self._log_failed_submission(data)
|
|
self.state.set_fail(retry_after=retry_after)
|
|
|
|
def _log_failed_submission(self, data):
|
|
"""
|
|
Log a reasonable representation of an event that should have been sent
|
|
to Sentry
|
|
"""
|
|
message = data.pop('message', '<no message value>')
|
|
output = [message]
|
|
if 'exception' in data and 'stacktrace' in data['exception']['values'][0]:
|
|
# try to reconstruct a reasonable version of the exception
|
|
for frame in data['exception']['values'][0]['stacktrace']['frames']:
|
|
output.append(' File "%(filename)s", line %(lineno)s, in %(function)s' % {
|
|
'filename': frame['filename'],
|
|
'lineno': frame['lineno'],
|
|
'function': frame['function'],
|
|
})
|
|
|
|
self.uncaught_logger.error(output)
|
|
|
|
def send_remote(self, url, data, headers=None):
|
|
# If the client is configured to raise errors on sending,
|
|
# the implication is that the backoff and retry strategies
|
|
# will be handled by the calling application
|
|
if headers is None:
|
|
headers = {}
|
|
|
|
if not self.raise_send_errors and not self.state.should_try():
|
|
data = self.decode(data)
|
|
self._log_failed_submission(data)
|
|
return
|
|
|
|
self.logger.debug('Sending message of length %d to %s', len(data), url)
|
|
|
|
def failed_send(e):
|
|
self._failed_send(e, url, self.decode(data))
|
|
|
|
try:
|
|
transport = self.remote.get_transport()
|
|
if transport.async:
|
|
transport.async_send(data, headers, self._successful_send,
|
|
failed_send)
|
|
else:
|
|
transport.send(data, headers)
|
|
self._successful_send()
|
|
except Exception as e:
|
|
if self.raise_send_errors:
|
|
raise
|
|
failed_send(e)
|
|
|
|
def send(self, auth_header=None, **data):
|
|
"""
|
|
Serializes the message and passes the payload onto ``send_encoded``.
|
|
"""
|
|
message = self.encode(data)
|
|
|
|
return self.send_encoded(message, auth_header=auth_header)
|
|
|
|
def send_encoded(self, message, auth_header=None, **kwargs):
|
|
"""
|
|
Given an already serialized message, signs the message and passes the
|
|
payload off to ``send_remote`` for each server specified in the servers
|
|
configuration.
|
|
"""
|
|
client_string = 'raven-python/%s' % (raven.VERSION,)
|
|
|
|
if not auth_header:
|
|
timestamp = time.time()
|
|
auth_header = get_auth_header(
|
|
protocol=self.protocol_version,
|
|
timestamp=timestamp,
|
|
client=client_string,
|
|
api_key=self.remote.public_key,
|
|
api_secret=self.remote.secret_key,
|
|
)
|
|
|
|
headers = {
|
|
'User-Agent': client_string,
|
|
'X-Sentry-Auth': auth_header,
|
|
'Content-Encoding': self.get_content_encoding(),
|
|
'Content-Type': 'application/octet-stream',
|
|
}
|
|
|
|
self.send_remote(
|
|
url=self.remote.store_endpoint,
|
|
data=message,
|
|
headers=headers,
|
|
**kwargs
|
|
)
|
|
|
|
def get_content_encoding(self):
|
|
return 'deflate'
|
|
|
|
def encode(self, data):
|
|
"""
|
|
Serializes ``data`` into a raw string.
|
|
"""
|
|
return zlib.compress(json.dumps(data).encode('utf8'))
|
|
|
|
def decode(self, data):
|
|
"""
|
|
Unserializes a string, ``data``.
|
|
"""
|
|
return json.loads(zlib.decompress(data).decode('utf8'))
|
|
|
|
def captureMessage(self, message, **kwargs):
|
|
"""
|
|
Creates an event from ``message``.
|
|
|
|
>>> client.captureMessage('My event just happened!')
|
|
"""
|
|
return self.capture('raven.events.Message', message=message, **kwargs)
|
|
|
|
def captureException(self, exc_info=None, **kwargs):
|
|
"""
|
|
Creates an event from an exception.
|
|
|
|
>>> try:
|
|
>>> exc_info = sys.exc_info()
|
|
>>> client.captureException(exc_info)
|
|
>>> finally:
|
|
>>> del exc_info
|
|
|
|
If exc_info is not provided, or is set to True, then this method will
|
|
perform the ``exc_info = sys.exc_info()`` and the requisite clean-up
|
|
for you.
|
|
|
|
``kwargs`` are passed through to ``.capture``.
|
|
"""
|
|
return self.capture(
|
|
'raven.events.Exception', exc_info=exc_info, **kwargs)
|
|
|
|
def capture_exceptions(self, function_or_exceptions, **kwargs):
|
|
"""
|
|
Wrap a function in try/except and automatically call ``.captureException``
|
|
if it raises an exception, then the exception is reraised.
|
|
|
|
By default, it will capture ``Exception``
|
|
|
|
>>> @client.capture_exceptions
|
|
>>> def foo():
|
|
>>> raise Exception()
|
|
|
|
You can also specify exceptions to be caught specifically
|
|
|
|
>>> @client.capture_exceptions((IOError, LookupError))
|
|
>>> def bar():
|
|
>>> ...
|
|
|
|
``kwargs`` are passed through to ``.captureException``.
|
|
"""
|
|
def make_decorator(exceptions):
|
|
def decorator(func):
|
|
@wraps(func)
|
|
def wrapper(*funcargs, **funckwargs):
|
|
try:
|
|
return func(*funcargs, **funckwargs)
|
|
except exceptions:
|
|
self.captureException(**kwargs)
|
|
raise
|
|
return wrapper
|
|
return decorator
|
|
if isinstance(function_or_exceptions, FunctionType):
|
|
return make_decorator((Exception,))(function_or_exceptions)
|
|
return make_decorator(function_or_exceptions)
|
|
|
|
def captureQuery(self, query, params=(), engine=None, **kwargs):
|
|
"""
|
|
Creates an event for a SQL query.
|
|
|
|
>>> client.captureQuery('SELECT * FROM foo')
|
|
"""
|
|
return self.capture(
|
|
'raven.events.Query', query=query, params=params, engine=engine,
|
|
**kwargs)
|
|
|
|
def captureExceptions(self, **kwargs):
|
|
warnings.warn(
|
|
'captureExceptions is deprecated, used context() instead.',
|
|
DeprecationWarning)
|
|
return self.context(**kwargs)
|
|
|
|
|
|
class DummyClient(Client):
|
|
"Sends messages into an empty void"
|
|
def send(self, **kwargs):
|
|
return None
|