/usr/lib/thunderbird-addons/extensions/{a62ef8ec-5fdc-40c2-873c-223b8a6925cc}/js/calGoogleRequest.js is in xul-ext-gdata-provider 1:24.4.0+build1-0ubuntu1.
This file is owned by root:root, with mode 0o644.
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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://calendar/modules/calUtils.jsm");
Components.utils.import("resource://gre/modules/Services.jsm");
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
/**
* calGoogleRequest
* This class represents a HTTP request sent to Google
*
* @constructor
* @class
*/
function calGoogleRequest(aSession) {
this.mQueryParameters = new Array();
this.mSession = aSession;
this.wrappedJSObject = this;
}
const calGoogleRequestClassID = Components.ID("{53a3438a-21bc-4a0f-b813-77a8b4f19282}");
const calGoogleRequestInterfaces = [
Components.interfaces.calIGoogleRequest,
Components.interfaces.calIOperation,
Components.interfaces.nsIStreamLoaderObserver,
Components.interfaces.nsIInterfaceRequestor,
Components.interfaces.nsIChannelEventSink
];
calGoogleRequest.prototype = {
/* Members */
mUploadContent: null,
mUploadData: null,
mSession: null,
mExtraData: null,
mQueryParameters: null,
mType: null,
mCalendar: null,
mLoader: null,
mStatus: Components.results.NS_OK,
/* Constants */
LOGIN: 0,
ADD: 1,
MODIFY: 2,
DELETE: 3,
GET: 4,
/* Simple Attributes */
method: "GET",
id: null,
uri: null,
responseListener: null,
operationListener: null,
reauthenticate: true,
itemRangeStart: null,
itemRangeEnd: null,
itemFilter: null,
itemId: null,
calendar: null,
newItem: null,
oldItem: null,
destinationCal: null,
classID: calGoogleRequestClassID,
QueryInterface: XPCOMUtils.generateQI(calGoogleRequestInterfaces),
classInfo: XPCOMUtils.generateCI({
classID: calGoogleRequestClassID,
contractID: "@mozilla.org/calendar/providers/gdata/request;1",
classDescription: "Google Calendar Request",
interfaces: calGoogleRequestInterfaces
}),
/**
* 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) {
this.mLoader.request.cancel(aStatus);
this.mStatus = aStatus;
}
},
/**
* attribute type
* The type of this reqest. Must be one of
* LOGIN, GET, ADD, MODIFY, DELETE
* This also sets the Request Method and for the LOGIN request also the uri
*/
get type() { return this.mType; },
set type(v) {
switch (v) {
case this.LOGIN:
this.method = "POST";
this.uri = "https://www.google.com/accounts/ClientLogin";
break;
case this.GET:
this.method = "GET";
break;
case this.ADD:
this.method = "POST";
break;
case this.MODIFY:
this.method = "PUT";
break;
case this.DELETE:
this.method = "DELETE";
break;
default:
throw new Components.Exception("", Components.results.NS_ERROR_ILLEGAL_VALUE);
break;
}
this.mType = v;
return 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
* Adds a query parameter to this request. This will be used in conjunction
* with the uri.
*
* @param aKey The key of the request parameter.
* @param aValue The value of the request parameter. This parameter will
* be escaped.
*/
addQueryParameter: function cGR_addQueryParameter(aKey, aValue) {
if (aValue == null || aValue == "") {
// Silently ignore empty values.
return;
}
this.mQueryParameters.push(aKey + "=" + encodeURIComponent(aValue));
},
/**
* 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) {
try {
// Set the session to request with
if (aSession) {
this.mSession = aSession;
}
let uristring = this.uri;
if (this.mQueryParameters.length > 0) {
uristring += "?" + this.mQueryParameters.join("&");
}
let uri = Services.io.newURI(uristring, null, null);
let channel = Services.io.newChannelFromURI(uri);
this.prepareChannel(channel);
channel = channel.QueryInterface(Components.interfaces.nsIHttpChannel);
channel.redirectionLimit = 3;
this.mLoader = cal.createStreamLoader();
cal.LOG("[calGoogleCalendar] Requesting " + this.method + " " +
channel.URI.spec);
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);
}
},
/**
* 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 calIGoogleErrors will be used.
*/
fail: function cGR_fail(aCode, aMessage) {
this.mLoader = null;
this.mStatus = aCode;
this.responseListener.onResult(this, aMessage);
},
/**
* 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) {
// Succeeding is nothing more than failing with the result code set to
// NS_OK.
this.fail(Components.results.NS_OK, aResult);
},
/**
* 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);
if (this.mType == this.LOGIN) {
cal.LOG("[calGoogleCalendar] Setting upload data for login request (hidden)");
} else {
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 (getPrefSafe("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;
}
// Add Authorization
if (this.mSession.authToken) {
aChannel.setRequestHeader("Authorization",
"GoogleLogin auth="
+ this.mSession.authToken,
false);
}
},
/**
* @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;
}
// 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.
getCorrectedDate.mClockSkew = curDate.getTime() - serverDate.getTime();
// Remember when this request happened
this.requestDate = cal.jsDateToDateTime(serverDate);
// Handle all (documented) error codes
switch (httpChannel.responseStatus) {
case 200: /* No error. */
case 201: /* Creation of a resource was successful. */
// Everything worked out, we are done
this.succeed(result);
break;
case 401: /* Authorization required. */
case 403: /* Unsupported standard parameter, or authentication or
Authorization failed. */
cal.LOG("[calGoogleCalendar] Login failed for " + this.mSession.userName +
" HTTP Status " + httpChannel.responseStatus);
// login failed. auth token must be invalid, password too
if (this.type == this.MODIFY ||
this.type == this.DELETE ||
this.type == this.ADD) {
// Encountering this error on a write request means the
// calendar is readonly
this.fail(Components.interfaces.calIErrors.CAL_IS_READONLY, result);
} else if (!this.reauthenticate) {
// If no reauth was requested, then don't invalidate the
// whole session and just bail out
this.fail(kGOOGLE_LOGIN_FAILED, result);
} else if (this.type == this.LOGIN) {
// If this was a login request itself, then fail it.
// That will take care of logging in again
this.mSession.invalidate();
this.fail(kGOOGLE_LOGIN_FAILED, result);
} else {
// Retry the request. Invalidating the session will trigger
// a new login dialog.
this.mSession.invalidate();
this.mSession.asyncItemRequest(this);
}
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.
this.fail(kGOOGLE_CONFLICT_DELETED, "");
break;
case 409: /* Specified version number doesn't match resource's
latest version number. */
this.fail(kGOOGLE_CONFLICT_MODIFY, result);
break;
case 400:
// 400 BAD REQUEST: Invalid request URI or header, or
// unsupported nonstandard parameter.
// HACK Ugh, this sucks. If we send a lower sequence number, Google
// will throw a 400 and not a 409, even though both cases are a conflict.
if (result == "Cannot decrease the sequence number of an event") {
this.fail(kGOOGLE_CONFLICT_MODIFY, "SEQUENCE-HACK");
break;
}
// 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 error = "A request Error Occurred. Status Code: " +
httpChannel.responseStatus + " " +
httpChannel.responseStatusText + " Body: " +
result;
this.fail(Components.results.NS_ERROR_NOT_AVAILABLE, error);
break;
}
}
};
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