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stackdriver-errors-js/stackdriver-errors.js at v0.7.0 · GoogleCloudPlatform/stackdriver-errors-js · GitHub
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stackdriver-errors-js
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/**
* Copyright 2016 Google Inc. All Rights Reserved.
*
* 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
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var
StackTrace
=
require
(
'stacktrace-js'
)
;
/**
* URL endpoint of the Stackdriver Error Reporting report API.
*/
var
baseAPIUrl
=
'https://clouderrorreporting.googleapis.com/v1beta1/projects/'
;
/**
* An Error handler that sends errors to the Stackdriver Error Reporting API.
*/
var
StackdriverErrorReporter
=
function
(
)
{
}
;
/**
* Initialize the StackdriverErrorReporter object.
*
@param
{
Object
} config - the init configuration.
*
@param
{
Object
} [config.context={}] - the context in which the error occurred.
*
@param
{
string
} [config.context.user] - the user who caused or was affected by the error.
*
@param
{
String
} config.key - the API key to use to call the API.
*
@param
{
String
} config.projectId - the Google Cloud Platform project ID to report errors to.
*
@param
{
String
} [config.service=web] - service identifier.
*
@param
{
String
} [config.version] - version identifier.
*
@param
{
Boolean
} [config.reportUncaughtExceptions=true] - Set to false to stop reporting unhandled exceptions.
*
@param
{
Boolean
} [config.disabled=false] - Set to true to not report errors when calling report(), this can be used when developping locally.
*/
StackdriverErrorReporter
.
prototype
.
start
=
function
(
config
)
{
if
(
!
config
.
key
&&
!
config
.
targetUrl
)
{
throw
new
Error
(
'Cannot initialize: No API key or target url provided.'
)
;
}
if
(
!
config
.
projectId
&&
!
config
.
targetUrl
)
{
throw
new
Error
(
'Cannot initialize: No project ID or target url provided.'
)
;
}
this
.
apiKey
=
config
.
key
;
this
.
projectId
=
config
.
projectId
;
this
.
targetUrl
=
config
.
targetUrl
;
this
.
context
=
config
.
context
||
{
}
;
this
.
serviceContext
=
{
service
:
config
.
service
||
'web'
}
;
if
(
config
.
version
)
{
this
.
serviceContext
.
version
=
config
.
version
;
}
this
.
reportUncaughtExceptions
=
config
.
reportUncaughtExceptions
!==
false
;
this
.
reportUnhandledPromiseRejections
=
config
.
reportUnhandledPromiseRejections
!==
false
;
this
.
disabled
=
!
!
config
.
disabled
;
registerHandlers
(
this
)
;
}
;
function
registerHandlers
(
reporter
)
{
// Register as global error handler if requested
var
noop
=
function
(
)
{
}
;
if
(
reporter
.
reportUncaughtExceptions
)
{
var
oldErrorHandler
=
window
.
onerror
||
noop
;
window
.
onerror
=
function
(
message
,
source
,
lineno
,
colno
,
error
)
{
if
(
error
)
{
reporter
.
report
(
error
)
.
catch
(
noop
)
;
}
oldErrorHandler
(
message
,
source
,
lineno
,
colno
,
error
)
;
return
true
;
}
;
}
if
(
reporter
.
reportUnhandledPromiseRejections
)
{
var
oldPromiseRejectionHandler
=
window
.
onunhandledrejection
||
noop
;
window
.
onunhandledrejection
=
function
(
promiseRejectionEvent
)
{
if
(
promiseRejectionEvent
)
{
reporter
.
report
(
promiseRejectionEvent
.
reason
)
.
catch
(
noop
)
;
}
oldPromiseRejectionHandler
(
promiseRejectionEvent
.
reason
)
;
return
true
;
}
;
}
}
/**
* Report an error to the Stackdriver Error Reporting API
*
@param
{
Error|String
} err - The Error object or message string to report.
*
@param
{
Object
} options - Configuration for this report.
*
@param
{
number
} [options.skipLocalFrames=1] - Omit number of frames if creating stack.
*
@returns
{
Promise
} A promise that completes when the report has been sent.
*/
StackdriverErrorReporter
.
prototype
.
report
=
function
(
err
,
options
)
{
if
(
this
.
disabled
)
{
return
Promise
.
resolve
(
null
)
;
}
if
(
!
err
)
{
return
Promise
.
reject
(
new
Error
(
'no error to report'
)
)
;
}
options
=
options
||
{
}
;
var
payload
=
{
}
;
payload
.
serviceContext
=
this
.
serviceContext
;
payload
.
context
=
this
.
context
;
payload
.
context
.
httpRequest
=
{
userAgent
:
window
.
navigator
.
userAgent
,
url
:
window
.
location
.
href
,
}
;
var
firstFrameIndex
=
0
;
if
(
typeof
err
==
'string'
||
err
instanceof
String
)
{
// Transform the message in an error, use try/catch to make sure the stacktrace is populated.
try
{
throw
new
Error
(
err
)
;
}
catch
(
e
)
{
err
=
e
;
}
// the first frame when using report() is always this library
firstFrameIndex
=
options
.
skipLocalFrames
||
1
;
}
var
reportUrl
=
this
.
targetUrl
||
(
baseAPIUrl
+
this
.
projectId
+
'/events:report?key='
+
this
.
apiKey
)
;
return
resolveError
(
err
,
firstFrameIndex
)
.
then
(
function
(
message
)
{
payload
.
message
=
message
;
return
sendErrorPayload
(
reportUrl
,
payload
)
;
}
)
;
}
;
function
resolveError
(
err
,
firstFrameIndex
)
{
// This will use sourcemaps and normalize the stack frames
return
StackTrace
.
fromError
(
err
)
.
then
(
function
(
stack
)
{
var
lines
=
[
err
.
toString
(
)
]
;
// Reconstruct to a JS stackframe as expected by Error Reporting parsers.
for
(
var
s
=
firstFrameIndex
;
s
<
stack
.
length
;
s
++
)
{
// Cannot use stack[s].source as it is not populated from source maps.
lines
.
push
(
[
' at '
,
// If a function name is not available '<anonymous>' will be used.
stack
[
s
]
.
getFunctionName
(
)
||
'<anonymous>'
,
' ('
,
stack
[
s
]
.
getFileName
(
)
,
':'
,
stack
[
s
]
.
getLineNumber
(
)
,
':'
,
stack
[
s
]
.
getColumnNumber
(
)
,
')'
,
]
.
join
(
''
)
)
;
}
return
lines
.
join
(
'\n'
)
;
}
,
function
(
reason
)
{
// Failure to extract stacktrace
return
[
'Error extracting stack trace: '
,
reason
,
'\n'
,
err
.
toString
(
)
,
'\n'
,
' ('
,
err
.
file
,
':'
,
err
.
line
,
':'
,
err
.
column
,
')'
,
]
.
join
(
''
)
;
}
)
;
}
function
sendErrorPayload
(
url
,
payload
)
{
var
xhr
=
new
XMLHttpRequest
(
)
;
xhr
.
open
(
'POST'
,
url
,
true
)
;
xhr
.
setRequestHeader
(
'Content-Type'
,
'application/json; charset=UTF-8'
)
;
return
new
Promise
(
function
(
resolve
,
reject
)
{
xhr
.
onreadystatechange
=
function
(
)
{
if
(
xhr
.
readyState
===
4
)
{
var
code
=
xhr
.
status
;
if
(
code
>=
200
&&
code
<
300
)
{
resolve
(
{
message
:
payload
.
message
}
)
;
}
else
{
var
condition
=
code
?
code
+
' http response'
:
'network error'
;
reject
(
new
Error
(
condition
+
' on stackdriver report'
)
)
;
}
}
}
;
xhr
.
send
(
JSON
.
stringify
(
payload
)
)
;
}
)
;
}
/**
* Set the user for the current context.
*
*
@param
{
string
} user - the unique identifier of the user (can be ID, email or custom token) or `undefined` if not logged in.
*/
StackdriverErrorReporter
.
prototype
.
setUser
=
function
(
user
)
{
this
.
context
.
user
=
user
;
}
;
module
.
exports
=
StackdriverErrorReporter
;
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