/usr/lib/thunderbird-addons/extensions/{a62ef8ec-5fdc-40c2-873c-223b8a6925cc}/modules/gdataRequest.jsm is in xul-ext-gdata-provider 1:52.7.0+build1-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
Components.utils.import("resource://gdata-provider/modules/shim/Loader.jsm").shimIt(this);
Components.utils.import("resource://gdata-provider/modules/gdataLogging.jsm");
CuImport("resource://gre/modules/XPCOMUtils.jsm", this);
CuImport("resource://gre/modules/Services.jsm", this);
CuImport("resource://gre/modules/Promise.jsm", this);
CuImport("resource://gre/modules/PromiseUtils.jsm", this);
CuImport("resource://gre/modules/Preferences.jsm", this);
CuImport("resource://calendar/modules/calUtils.jsm", this);
var cIE = Components.interfaces.calIErrors;
var API_BASE = {
EVENTS: "https://www.googleapis.com/calendar/v3/",
TASKS: "https://www.googleapis.com/tasks/v1/"
};
var EXPORTED_SYMBOLS = ["calGoogleRequest", "getCorrectedDate", "API_BASE"];
/**
* Gets the date and time that Google's http server last sent us. Note the
* passed argument is modified. This might not be the exact server time (i.e it
* may be off by network latency), but it does give a good guess when syncing.
*
* @param aDate The date to modify.
*/
function getCorrectedDate(aDate) {
if (getCorrectedDate.mClockSkew) {
aDate.second += getCorrectedDate.mClockSkew;
}
return aDate;
}
/**
* calGoogleRequest
* This class represents a HTTP request sent to Google
*
* @constructor
* @class
*/
function calGoogleRequest() {
this.mQueryParameters = new Map();
this.mRequestHeaders = new Map();
this.wrappedJSObject = this;
}
calGoogleRequest.ADD = "POST";
calGoogleRequest.MODIFY = "PUT";
calGoogleRequest.DELETE = "DELETE";
calGoogleRequest.GET = "GET";
calGoogleRequest.PATCH = "PATCH";
var GDATA_ERROR_BASE = Components.interfaces.calIErrors.ERROR_BASE + 0x400;
calGoogleRequest.LOGIN_FAILED = GDATA_ERROR_BASE + 1;
calGoogleRequest.CONFLICT_DELETED = GDATA_ERROR_BASE + 2;
calGoogleRequest.CONFLICT_MODIFY = GDATA_ERROR_BASE + 3;
calGoogleRequest.NOT_MODIFIED = GDATA_ERROR_BASE + 4;
calGoogleRequest.QUOTA_FAILURE = GDATA_ERROR_BASE + 5;
calGoogleRequest.TOKEN_FAILURE = GDATA_ERROR_BASE + 6;
calGoogleRequest.RESOURCE_GONE = GDATA_ERROR_BASE + 7;
calGoogleRequest.prototype = {
/* Members */
mUploadContent: null,
mUploadData: null,
mSession: null,
mQueryParameters: null,
mType: null,
mLoader: null,
mDeferred: null,
mStatus: Components.results.NS_OK,
/* Constants */
ADD: calGoogleRequest.ADD,
MODIFY: calGoogleRequest.MODIFY,
DELETE: calGoogleRequest.DELETE,
GET: calGoogleRequest.GET,
PATCH: calGoogleRequest.PATCH,
/* Simple Attributes */
method: "GET",
id: null,
uri: null,
calendar: null,
reauthenticate: true,
requestDate: null,
QueryInterface: XPCOMUtils.generateQI([
Components.interfaces.calIOperation,
Components.interfaces.nsIStreamLoaderObserver,
Components.interfaces.nsIInterfaceRequestor,
Components.interfaces.nsIChannelEventSink
]),
/**
* Implement calIOperation
*/
get isPending() {
return (this.mLoader && this.mLoader.request != null);
},
get status() {
if (this.isPending) {
return this.mLoader.request.status;
} else {
return this.mStatus;
}
},
cancel: function cGR_cancel(aStatus) {
if (this.isPending) {
if (this.mLoader) {
this.mLoader.request.cancel(aStatus);
}
this.mStatus = aStatus;
}
},
/**
* attribute type
* The type of this reqest. Must be one of
* GET, ADD, MODIFY, DELETE
*/
get type() { return this.method; },
set type(v) {
let valid = [this.GET, this.ADD, this.MODIFY, this.PATCH, this.DELETE];
if (!valid.includes(v)) {
throw new Components.Exception("Invalid request type: " + v,
Components.results.NS_ERROR_ILLEGAL_VALUE);
}
return (this.method = v);
},
/**
* setUploadData
* The HTTP body data for a POST or PUT request.
*
* @param aContentType The Content type of the Data.
* @param aData The Data to upload.
*/
setUploadData: function cGR_setUploadData(aContentType, aData) {
this.mUploadContent = aContentType;
this.mUploadData = aData;
},
addQueryParameter: function cGR_addQueryParameter(aKey, aValue) {
if (aValue) {
this.mQueryParameters.set(aKey, aValue);
} else {
this.mQueryParameters.delete(aKey);
}
},
addRequestHeader: function cGR_addRequestHeader(aKey, aValue) {
if (aValue) {
this.mRequestHeaders.set(aKey, aValue);
} else {
this.mRequestHeaders.delete(aKey);
}
},
/**
* commit
* Starts the request process. This can be called multiple times if the
* request should be repeated
*
* @param aSession The session object this request should be made with.
* This parameter is optional.
*/
commit: function cGR_commit(aSession) {
if (!this.mDeferred) {
this.mDeferred = PromiseUtils.defer();
}
let promise = this.mDeferred.promise;
try {
// Set the session to request with
if (aSession) {
this.mSession = aSession;
}
// create the channel
let uristring = this.uri;
if (this.mQueryParameters.size > 0) {
let params = [];
// Using forEach is needed for backwards compatibility
this.mQueryParameters.forEach(function(v, k) {
params.push(k + "=" + encodeURIComponent(v));
});
uristring += "?" + params.join("&");
}
let uri = Services.io.newURI(uristring, null, null);
let channel;
if ("newChannelFromURI2" in Services.io) {
// Lightning 4.3+
channel = Services.io.newChannelFromURI2(uri,
null,
Services.scriptSecurityManager.getSystemPrincipal(),
null,
Components.interfaces.nsILoadInfo.SEC_NORMAL,
Components.interfaces.nsIContentPolicy.TYPE_OTHER);
} else {
// Lightning 4.2 and older
channel = Services.io.newChannelFromURI(uri);
}
cal.LOG("[calGoogleRequest] Requesting " + this.method + " " +
channel.URI.spec);
this.prepareChannel(channel);
channel = channel.QueryInterface(Components.interfaces.nsIHttpChannel);
channel.redirectionLimit = 3;
this.mLoader = cal.createStreamLoader();
channel.notificationCallbacks = this;
cal.sendHttpRequest(this.mLoader, channel, this);
} catch (e) {
// Let the response function handle the error that happens here
this.fail(e.result, e.message);
}
return promise;
},
/**
* fail
* Call this request's listener with the given code and Message
*
* @param aCode The Error code to fail with.
* @param aMessage The Error message. If this is null, an error Message
* from calGoogleRequest will be used.
*/
fail: function cGR_fail(aCode, aMessage) {
let ex = new Components.Exception(aMessage, aCode);
this.mLoader = null;
this.mStatus = aCode;
this.mDeferred.reject(ex);
this.mDeferred = null;
},
/**
* succeed
* Call this request's listener with a Success Code and the given Result.
*
* @param aResult The result Text of this request.
*/
succeed: function cGR_succeed(aResult) {
this.mLoader = null;
this.mStatus = Components.results.NS_OK;
this.mDeferred.resolve(aResult);
this.mDeferred = null;
},
/**
* prepareChannel
* Prepares the passed channel to match this objects properties
*
* @param aChannel The Channel to be prepared.
*/
prepareChannel: function cGR_prepareChannel(aChannel) {
// No caching
aChannel.loadFlags |= Components.interfaces.nsIRequest.LOAD_BYPASS_CACHE;
// Set upload Data
if (this.mUploadData) {
let converter = Components.classes["@mozilla.org/intl/scriptableunicodeconverter"].
createInstance(Components.interfaces.nsIScriptableUnicodeConverter);
converter.charset = "UTF-8";
let stream = converter.convertToInputStream(this.mUploadData);
aChannel = aChannel.QueryInterface(Components.interfaces.nsIUploadChannel);
aChannel.setUploadStream(stream, this.mUploadContent, -1);
cal.LOG("[calGoogleCalendar] Setting Upload Data (" +
this.mUploadContent + "):\n" + this.mUploadData);
}
aChannel = aChannel.QueryInterface(Components.interfaces.nsIHttpChannel);
// Depending on the preference, we will use X-HTTP-Method-Override to
// get around some proxies. This will default to true.
if (Preferences.get("calendar.google.useHTTPMethodOverride", true) &&
(this.method == "PUT" || this.method == "DELETE")) {
aChannel.requestMethod = "POST";
aChannel.setRequestHeader("X-HTTP-Method-Override",
this.method,
false);
if (this.method == "DELETE") {
// DELETE has no body, set an empty one so that Google accepts
// the request.
aChannel.setRequestHeader("Content-Type",
"application/atom+xml; charset=UTF-8",
false);
aChannel.setRequestHeader("Content-Length", 0, false);
}
} else {
aChannel.requestMethod = this.method;
}
if (this.mRequestHeaders.size) {
cal.LOG("[calGoogleCalendar] Sending request headers: " + this.mRequestHeaders.toSource());
}
// Using forEach is needed for backwards compatibility
this.mRequestHeaders.forEach(function(v, k) {
aChannel.setRequestHeader(k, v, false);
});
// Add Authorization
let token = this.mSession.accessToken;
if (token) {
aChannel.setRequestHeader("Authorization",
"Bearer " + token,
false);
} else {
cal.WARN("[calGoogleCalendar] Missing access token for " +
aChannel.URI.spec);
}
},
/**
* @see nsIInterfaceRequestor
* @see calProviderUtils.jsm
*/
getInterface: cal.InterfaceRequestor_getInterface,
/**
* @see nsIChannelEventSink
*/
asyncOnChannelRedirect: function cGR_onChannelRedirect(aOldChannel,
aNewChannel,
aFlags,
aCallback) {
// all we need to do to the new channel is the basic preparation
this.prepareChannel(aNewChannel);
aCallback.onRedirectVerifyCallback(Components.results.NS_OK);
},
/**
* @see nsIStreamLoaderObserver
*/
onStreamComplete: function cGR_onStreamComplete(aLoader,
aContext,
aStatus,
aResultLength,
aResult) {
if (!aResult || !Components.isSuccessCode(aStatus)) {
this.fail(aStatus, aResult);
return;
}
let httpChannel = aLoader.request.QueryInterface(Components.interfaces.nsIHttpChannel);
// Convert the stream, falling back to utf-8 in case its not given.
let result = cal.convertByteArray(aResult, aResultLength, httpChannel.contentCharset);
if (result === null) {
this.fail(Components.results.NS_ERROR_FAILURE,
"Could not convert bytestream to Unicode: " + e);
return;
}
let objData;
try {
if (result.length) {
objData = JSON.parse(result);
} else {
objData = { status: "No Content" };
}
} catch (e) {
cal.ERROR("[calGoogleCalendar] Could not parse API response as " +
"JSON: " + result);
this.fail(Components.results.NS_ERROR_FAILURE, result);
}
// Calculate Google Clock Skew
let serverDate = new Date(httpChannel.getResponseHeader("Date"));
let curDate = new Date();
// The utility function getCorrectedDate in calGoogleUtils.js receives
// its clock skew seconds from here. The clock skew is updated on each
// request and is therefore quite accurate. As this calculation doesn't
// take latency into account it might overlap 1-2 seconds, but better
// one event too much than one event too little.
getCorrectedDate.mClockSkew = Math.floor((curDate.getTime() - serverDate.getTime()) / 1000);
if (getCorrectedDate.mClockSkew != 0) {
cal.LOG("[calGoogleRequest] Clock skew is " + getCorrectedDate.mClockSkew + " seconds");
}
// Remember when this request happened
this.requestDate = cal.createDateTime();
this.requestDate.nativeTime = serverDate.getTime() * 1000;
cal.LOG("[calGoogleCalendar] Request " + this.method + " " +
httpChannel.URI.spec + " responded with HTTP "
+ httpChannel.responseStatus);
// Handle all (documented) error codes
switch (httpChannel.responseStatus) {
case 200: /* No error. */
case 201: /* Creation of a resource was successful. */
case 204: /* No content */
// Everything worked out, we are done
if (this.calendar) {
this.calendar.setProperty("currentStatus", 0);
}
this.succeed(objData);
break;
case 304: /* Not modified */
this.fail(calGoogleRequest.NOT_MODIFIED, objData);
break;
case 401: /* Authorization required. */
case 403: { /* Unsupported standard parameter, or authentication or
Authorization failed. */
let reason = objData && objData.error &&
objData.error.errors && objData.error.errors[0] &&
objData.error.errors[0].reason;
cal.LOG("[calGoogleCalendar] Login failed for " + this.mSession.id +
" HTTP Status: " + httpChannel.responseStatus +
" Reason: " + (reason || result));
switch (reason) {
case "invalid_client":
this.mSession.notifyOutdated();
if (this.calendar) {
this.calendar.setProperty("disabled", true);
this.calendar.setProperty("currentStatus", calGoogleRequest.TOKEN_FAILURE);
}
this.fail(calGoogleRequest.TOKEN_FAILURE, reason);
break;
case "unauthorized_client":
// This often happens when the client makes a request
// authorized with an old api token. Retry the request
// once.
this.mSession.invalidate();
if (this.reauthenticate) {
cal.LOG("[calGoogleRequest] The access token is not authorized, trying to refresh token.")
this.reauthenticate = false;
this.mSession.asyncItemRequest(this);
} else {
cal.LOG("[calGoogleRequest] Even refreshed token is not authorized, looks like the client is outdated");
this.mSession.notifyOutdated();
if (this.calendar) {
this.calendar.setProperty("disabled", true);
this.calendar.setProperty("currentStatus", calGoogleRequest.TOKEN_FAILURE);
}
this.fail(calGoogleRequest.TOKEN_FAILURE, reason);
}
break;
case "variableTermLimitExceeded":
case "userRateLimitExceeded":
case "dailyLimitExceeded":
case "quotaExceeded":
this.mSession.notifyQuotaExceeded();
if (this.calendar) {
this.calendar.setProperty("disabled", true);
this.calendar.setProperty("currentStatus", calGoogleRequest.QUOTA_FAILURE);
}
this.fail(calGoogleRequest.QUOTA_FAILURE, reason);
break;
case "insufficientPermissions":
if (this.type == this.MODIFY || this.type == this.DELETE || this.type == this.ADD) {
this.fail(cIE.MODIFICATION_FAILED, objData);
} else {
this.fail(cIE.READ_FAILED, objData);
}
break;
case "authError":
case "invalidCredentials":
this.mSession.invalidate();
if (this.reauthenticate) {
this.reauthenticate = false;
this.mSession.asyncItemRequest(this);
} else {
this.fail(calGoogleRequest.LOGIN_FAILED, reason);
}
break;
default:
if (this.calendar) {
this.calendar.setProperty("currentStatus", Components.results.NS_ERROR_FAILURE);
}
this.fail(Components.results.NS_ERROR_FAILURE, result);
break;
}
break;
}
case 404: /* The resource was not found on the server, which is
also a conflict */
// 404 NOT FOUND: Resource (such as a feed or entry) not found.
// 410 Gone: Happens when deleting an event that has already
// been deleted.
this.fail(calGoogleRequest.CONFLICT_DELETED, objData);
break;
case 410:
this.fail(calGoogleRequest.RESOURCE_GONE, objData);
break;
case 412:
case 409: /* Specified version number doesn't match resource's
latest version number. */
this.fail(calGoogleRequest.CONFLICT_MODIFY, objData);
break;
case 400: {
// Some bad requests we can handle
let error = objData && objData.error &&
objData.error.errors && objData.error.errors[0];
if (error.message == "Invalid sync token value.") {
this.fail(calGoogleRequest.RESOURCE_GONE, objData);
return;
}
}
// Otherwise fall through
default:
// The following codes are caught here:
// 500 INTERNAL SERVER ERROR: Internal error. This is the
// default code that is used for
// all unrecognized errors.
//
// Something else went wrong
let msg = "A request Error Occurred. Status Code: " +
httpChannel.responseStatus + " " +
httpChannel.responseStatusText + " Body: " +
result;
cal.LOG("[calGoogleCalendar] " + msg);
this.fail(Components.results.NS_ERROR_NOT_AVAILABLE, msg);
break;
}
}
};
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