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/* This Source Code Form is subject to the terms of the Mozilla Public
* 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/. */
var {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
Cu.import("resource://gre/modules/Log.jsm");
Cu.import("resource://services-common/rest.js");
Cu.import("resource://services-sync/util.js");
Cu.import("resource://services-sync/constants.js");
this.EXPORTED_SYMBOLS = ["SyncStorageRequest"];
const STORAGE_REQUEST_TIMEOUT = 5 * 60; // 5 minutes
/**
* RESTRequest variant for use against a Sync storage server.
*/
this.SyncStorageRequest = function SyncStorageRequest(uri) {
RESTRequest.call(this, uri);
this.authenticator = null;
}
SyncStorageRequest.prototype = {
__proto__: RESTRequest.prototype,
_logName: "Sync.StorageRequest",
/**
* The string to use as the base User-Agent in Sync requests.
* These strings will look something like
*
* Firefox/4.0 FxSync/1.8.0.20100101.mobile
*
* or
*
* Firefox Aurora/5.0a1 FxSync/1.9.0.20110409.desktop
*/
userAgent:
Services.appinfo.name + "/" + Services.appinfo.version + // Product.
" FxSync/" + WEAVE_VERSION + "." + // Sync.
Services.appinfo.appBuildID + ".", // Build.
/**
* Wait 5 minutes before killing a request.
*/
timeout: STORAGE_REQUEST_TIMEOUT,
dispatch: function dispatch(method, data, onComplete, onProgress) {
// Compose a UA string fragment from the various available identifiers.
if (Svc.Prefs.get("sendVersionInfo", true)) {
let ua = this.userAgent + Svc.Prefs.get("client.type", "desktop");
this.setHeader("user-agent", ua);
}
if (this.authenticator) {
this.authenticator(this);
} else {
this._log.debug("No authenticator found.");
}
return RESTRequest.prototype.dispatch.apply(this, arguments);
},
onStartRequest: function onStartRequest(channel) {
RESTRequest.prototype.onStartRequest.call(this, channel);
if (this.status == this.ABORTED) {
return;
}
let headers = this.response.headers;
// Save the latest server timestamp when possible.
if (headers["x-weave-timestamp"]) {
SyncStorageRequest.serverTime = parseFloat(headers["x-weave-timestamp"]);
}
// This is a server-side safety valve to allow slowing down
// clients without hurting performance.
if (headers["x-weave-backoff"]) {
Svc.Obs.notify("weave:service:backoff:interval",
parseInt(headers["x-weave-backoff"], 10));
}
if (this.response.success && headers["x-weave-quota-remaining"]) {
Svc.Obs.notify("weave:service:quota:remaining",
parseInt(headers["x-weave-quota-remaining"], 10));
}
},
onStopRequest: function onStopRequest(channel, context, statusCode) {
if (this.status != this.ABORTED) {
let resp = this.response;
let contentLength = resp.headers ? resp.headers["content-length"] : "";
if (resp.success && contentLength &&
contentLength != resp.body.length) {
this._log.warn("The response body's length of: " + resp.body.length +
" doesn't match the header's content-length of: " +
contentLength + ".");
}
}
RESTRequest.prototype.onStopRequest.apply(this, arguments);
}
};
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