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more and more refactoring: split weave module into multiple files (finally!)

This commit is contained in:
Dan Mills 2007-12-10 21:38:53 -08:00
Родитель 391859079a
Коммит 085f383f57
10 изменённых файлов: 3294 добавлений и 2693 удалений
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63
services/sync/modules/constants.js Normal file
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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Bookmarks Sync.
*
* The Initial Developer of the Original Code is Mozilla.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Dan Mills <thunder@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
const EXPORTED_SYMBOLS = ['Cc', 'Ci', 'Cr', 'Cu',
'MODE_RDONLY', 'MODE_WRONLY',
'MODE_CREATE', 'MODE_APPEND', 'MODE_TRUNCATE',
'PERMS_FILE', 'PERMS_DIRECTORY',
'STORAGE_FORMAT_VERSION',
'ONE_BYTE', 'ONE_KILOBYTE', 'ONE_MEGABYTE'];
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
const Cu = Components.utils;
const MODE_RDONLY = 0x01;
const MODE_WRONLY = 0x02;
const MODE_CREATE = 0x08;
const MODE_APPEND = 0x10;
const MODE_TRUNCATE = 0x20;
const PERMS_FILE = 0644;
const PERMS_DIRECTORY = 0755;
const STORAGE_FORMAT_VERSION = 2;
const ONE_BYTE = 1;
const ONE_KILOBYTE = 1024 * ONE_BYTE;
const ONE_MEGABYTE = 1024 * ONE_KILOBYTE;

196
services/sync/modules/crypto.js Normal file
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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Bookmarks Sync.
*
* The Initial Developer of the Original Code is Mozilla.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Dan Mills <thunder@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
const EXPORTED_SYMBOLS = ['WeaveCrypto'];
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
const Cu = Components.utils;
addModuleAlias("weave", "{340c2bbc-ce74-4362-90b5-7c26312808ef}");
Cu.import("resource://weave/log4moz.js");
Cu.import("resource://weave/constants.js");
Cu.import("resource://weave/util.js");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
function WeaveCrypto() {
this._init();
}
WeaveCrypto.prototype = {
_logName: "Crypto",
__os: null,
get _os() {
if (!this.__os)
this.__os = Cc["@mozilla.org/observer-service;1"]
.getService(Ci.nsIObserverService);
return this.__os;
},
__xxxtea: {},
__xxxteaLoaded: false,
get _xxxtea() {
if (!this.__xxxteaLoaded) {
let jsLoader = Cc["@mozilla.org/moz/jssubscript-loader;1"].
getService(Ci.mozIJSSubScriptLoader);
jsLoader.loadSubScript("chrome://weave/content/encrypt.js", this.__xxxtea);
this.__xxxteaLoaded = true;
}
return this.__xxxtea;
},
get defaultAlgorithm() {
let branch = Cc["@mozilla.org/preferences-service;1"]
.getService(Ci.nsIPrefBranch);
return branch.getCharPref("browser.places.sync.encryption");
},
set defaultAlgorithm(value) {
let branch = Cc["@mozilla.org/preferences-service;1"]
.getService(Ci.nsIPrefBranch);
let cur = branch.getCharPref("browser.places.sync.encryption");
if (value != cur)
branch.setCharPref("browser.places.sync.encryption", value);
},
_init: function Crypto__init() {
this._log = Log4Moz.Service.getLogger("Service." + this._logName);
let branch = Cc["@mozilla.org/preferences-service;1"]
.getService(Ci.nsIPrefBranch2);
branch.addObserver("browser.places.sync.encryption", this, false);
},
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver, Ci.nsISupports]),
// nsIObserver
observe: function Sync_observe(subject, topic, data) {
switch (topic) {
case "browser.places.sync.encryption":
let branch = Cc["@mozilla.org/preferences-service;1"]
.getService(Ci.nsIPrefBranch);
let cur = branch.getCharPref("browser.places.sync.encryption");
if (cur == data)
return;
switch (data) {
case "none":
this._log.info("Encryption disabled");
break;
case "XXXTEA":
this._log.info("Using encryption algorithm: " + data);
break;
default:
this._log.warn("Unknown encryption algorithm, resetting");
branch.setCharPref("browser.places.sync.encryption", "XXXTEA");
return; // otherwise we'll send the alg changed event twice
}
// FIXME: listen to this bad boy somewhere
this._os.notifyObservers(null, "weave:encryption:algorithm-changed", "");
break;
default:
this._log.warn("Unknown encryption preference changed - ignoring");
}
},
// Crypto
PBEencrypt: function Crypto_PBEencrypt(data, identity, algorithm) {
let out;
if (!algorithm)
algorithm = this.defaultAlgorithm;
switch (algorithm) {
case "none":
out = data;
break;
case "XXXTEA":
try {
this._log.debug("Encrypting data");
out = this._xxxtea.encrypt(data, identity.password);
this._log.debug("Done encrypting data");
} catch (e) {
this._log.error("Data encryption failed: " + e);
throw 'encrypt failed';
}
break;
default:
this._log.error("Unknown encryption algorithm: " + algorithm);
throw 'encrypt failed';
}
return out;
},
PBEdecrypt: function Crypto_PBEdecrypt(data, identity, algorithm) {
let out;
switch (algorithm) {
case "none":
out = eval(data);
break;
case "XXXTEA":
try {
this._log.debug("Decrypting data");
out = eval(this._xxxtea.decrypt(data, identity.password));
this._log.debug("Done decrypting data");
} catch (e) {
this._log.error("Data decryption failed: " + e);
throw 'decrypt failed';
}
break;
default:
this._log.error("Unknown encryption algorithm: " + algorithm);
throw 'decrypt failed';
}
return out;
}
};
function addModuleAlias(alias, extensionId) {
let ioSvc = Cc["@mozilla.org/network/io-service;1"]
.getService(Ci.nsIIOService);
let resProt = ioSvc.getProtocolHandler("resource")
.QueryInterface(Ci.nsIResProtocolHandler);
if (!resProt.hasSubstitution(alias)) {
let extMgr = Cc["@mozilla.org/extensions/manager;1"]
.getService(Ci.nsIExtensionManager);
let loc = extMgr.getInstallLocation(extensionId);
let extD = loc.getItemLocation(extensionId);
extD.append("modules");
resProt.setSubstitution(alias, ioSvc.newFileURI(extD));
}
}

559
services/sync/modules/dav.js Normal file
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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Bookmarks Sync.
*
* The Initial Developer of the Original Code is Mozilla.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Dan Mills <thunder@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
const EXPORTED_SYMBOLS = ['DAVCollection'];
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
const Cu = Components.utils;
addModuleAlias("weave", "{340c2bbc-ce74-4362-90b5-7c26312808ef}");
Cu.import("resource://weave/log4moz.js");
Cu.import("resource://weave/util.js");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Function.prototype.async = generatorAsync;
/*
* DAV object
* Abstracts the raw DAV commands
*/
function DAVCollection(baseURL) {
this._baseURL = baseURL;
this._authProvider = new DummyAuthProvider();
this._log = Log4Moz.Service.getLogger("Service.DAV");
}
DAVCollection.prototype = {
__dp: null,
get _dp() {
if (!this.__dp)
this.__dp = Cc["@mozilla.org/xmlextras/domparser;1"].
createInstance(Ci.nsIDOMParser);
return this.__dp;
},
_auth: null,
get baseURL() {
return this._baseURL;
},
set baseURL(value) {
this._baseURL = value;
},
_loggedIn: false,
get loggedIn() {
return this._loggedIn;
},
_makeRequest: function DC__makeRequest(onComplete, op, path, headers, data) {
let [self, cont] = yield;
let ret;
try {
this._log.debug("Creating " + op + " request for " + this._baseURL + path);
let request = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"].createInstance();
request = request.QueryInterface(Ci.nsIDOMEventTarget);
request.addEventListener("load", new EventListener(cont, "load"), false);
request.addEventListener("error", new EventListener(cont, "error"), false);
request = request.QueryInterface(Ci.nsIXMLHttpRequest);
request.open(op, this._baseURL + path, true);
// Force cache validation
let channel = request.channel;
channel = channel.QueryInterface(Ci.nsIRequest);
let loadFlags = channel.loadFlags;
loadFlags |= Ci.nsIRequest.VALIDATE_ALWAYS;
channel.loadFlags = loadFlags;
let key;
for (key in headers) {
this._log.debug("HTTP Header " + key + ": " + headers[key]);
request.setRequestHeader(key, headers[key]);
}
this._authProvider._authFailed = false;
request.channel.notificationCallbacks = this._authProvider;
request.send(data);
let event = yield;
ret = event.target;
if (this._authProvider._authFailed)
this._log.warn("_makeRequest: authentication failed");
if (ret.status < 200 || ret.status >= 300)
this._log.warn("_makeRequest: got status " + ret.status);
} catch (e) {
this._log.error("Exception caught: " + e.message);
} finally {
generatorDone(this, self, onComplete, ret);
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
},
get _defaultHeaders() {
return {'Authorization': this._auth? this._auth : '',
'Content-type': 'text/plain',
'If': this._token?
"<" + this._baseURL + "> (<" + this._token + ">)" : ''};
},
GET: function DC_GET(path, onComplete) {
return this._makeRequest.async(this, onComplete, "GET", path,
this._defaultHeaders);
},
PUT: function DC_PUT(path, data, onComplete) {
return this._makeRequest.async(this, onComplete, "PUT", path,
this._defaultHeaders, data);
},
DELETE: function DC_DELETE(path, onComplete) {
return this._makeRequest.async(this, onComplete, "DELETE", path,
this._defaultHeaders);
},
PROPFIND: function DC_PROPFIND(path, data, onComplete) {
let headers = {'Content-type': 'text/xml; charset="utf-8"',
'Depth': '0'};
headers.__proto__ = this._defaultHeaders;
return this._makeRequest.async(this, onComplete, "PROPFIND", path,
headers, data);
},
LOCK: function DC_LOCK(path, data, onComplete) {
let headers = {'Content-type': 'text/xml; charset="utf-8"',
'Depth': 'infinity',
'Timeout': 'Second-600'};
headers.__proto__ = this._defaultHeaders;
return this._makeRequest.async(this, onComplete, "LOCK", path, headers, data);
},
UNLOCK: function DC_UNLOCK(path, onComplete) {
let headers = {'Lock-Token': '<' + this._token + '>'};
headers.__proto__ = this._defaultHeaders;
return this._makeRequest.async(this, onComplete, "UNLOCK", path, headers);
},
// Login / Logout
login: function DC_login(onComplete, username, password) {
let [self, cont] = yield;
try {
if (this._loggedIn) {
this._log.debug("Login requested, but already logged in");
return;
}
this._log.info("Logging in");
let URI = makeURI(this._baseURL);
this._auth = "Basic " + btoa(username + ":" + password);
// Make a call to make sure it's working
this.GET("", cont);
let resp = yield;
if (this._authProvider._authFailed || resp.status < 200 || resp.status >= 300)
return;
this._loggedIn = true;
} catch (e) {
this._log.error("Exception caught: " + e.message);
} finally {
if (this._loggedIn)
this._log.info("Logged in");
else
this._log.warn("Could not log in");
generatorDone(this, self, onComplete, this._loggedIn);
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
},
logout: function DC_logout() {
this._log.debug("Logging out (forgetting auth header)");
this._loggedIn = false;
this.__auth = null;
},
// Locking
_getActiveLock: function DC__getActiveLock(onComplete) {
let [self, cont] = yield;
let ret = null;
try {
this._log.info("Getting active lock token");
this.PROPFIND("",
"<?xml version=\"1.0\" encoding=\"utf-8\" ?>" +
"<D:propfind xmlns:D='DAV:'>" +
" <D:prop><D:lockdiscovery/></D:prop>" +
"</D:propfind>", cont);
let resp = yield;
if (this._authProvider._authFailed || resp.status < 200 || resp.status >= 300)
return;
let tokens = xpath(resp.responseXML, '//D:locktoken/D:href');
let token = tokens.iterateNext();
ret = token.textContent;
} catch (e) {
this._log.error("Exception caught: " + e.message);
} finally {
if (ret)
this._log.debug("Found an active lock token");
else
this._log.debug("No active lock token found");
generatorDone(this, self, onComplete, ret);
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
},
lock: function DC_lock(onComplete) {
let [self, cont] = yield;
this._token = null;
try {
this._log.info("Acquiring lock");
if (this._token) {
this._log.debug("Lock called, but we already hold a token");
return;
}
this.LOCK("",
"<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n" +
"<D:lockinfo xmlns:D=\"DAV:\">\n" +
" <D:locktype><D:write/></D:locktype>\n" +
" <D:lockscope><D:exclusive/></D:lockscope>\n" +
"</D:lockinfo>", cont);
let resp = yield;
if (this._authProvider._authFailed || resp.status < 200 || resp.status >= 300)
return;
let tokens = xpath(resp.responseXML, '//D:locktoken/D:href');
let token = tokens.iterateNext();
if (token)
this._token = token.textContent;
} catch (e){
this._log.error("Exception caught: " + e.message);
} finally {
if (this._token)
this._log.info("Lock acquired");
else
this._log.warn("Could not acquire lock");
generatorDone(this, self, onComplete, this._token);
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
},
unlock: function DC_unlock(onComplete) {
let [self, cont] = yield;
try {
this._log.info("Releasing lock");
if (this._token === null) {
this._log.debug("Unlock called, but we don't hold a token right now");
return;
}
this.UNLOCK("", cont);
let resp = yield;
if (this._authProvider._authFailed || resp.status < 200 || resp.status >= 300)
return;
this._token = null;
} catch (e){
this._log.error("Exception caught: " + e.message);
} finally {
if (this._token) {
this._log.info("Could not release lock");
generatorDone(this, self, onComplete, false);
} else {
this._log.info("Lock released (or we didn't have one)");
generatorDone(this, self, onComplete, true);
}
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
},
forceUnlock: function DC_forceUnlock(onComplete) {
let [self, cont] = yield;
let unlocked = true;
try {
this._log.info("Forcibly releasing any server locks");
this._getActiveLock.async(this, cont);
this._token = yield;
if (!this._token) {
this._log.info("No server lock found");
return;
}
this._log.info("Server lock found, unlocking");
this.unlock.async(this, cont);
unlocked = yield;
} catch (e){
this._log.error("Exception caught: " + e.message);
} finally {
if (unlocked)
this._log.debug("Lock released");
else
this._log.debug("No lock released");
generatorDone(this, self, onComplete, unlocked);
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
},
stealLock: function DC_stealLock(onComplete) {
let [self, cont] = yield;
let stolen = null;
try {
this.forceUnlock.async(this, cont);
let unlocked = yield;
if (unlocked) {
this.lock.async(this, cont);
stolen = yield;
}
} catch (e){
this._log.error("Exception caught: " + e.message);
} finally {
generatorDone(this, self, onComplete, stolen);
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
}
};
/*
* Auth provider object
* Taken from nsMicrosummaryService.js and massaged slightly
*/
function DummyAuthProvider() {}
DummyAuthProvider.prototype = {
// Implement notification callback interfaces so we can suppress UI
// and abort loads for bad SSL certs and HTTP authorization requests.
// Interfaces this component implements.
interfaces: [Ci.nsIBadCertListener,
Ci.nsIAuthPromptProvider,
Ci.nsIAuthPrompt,
Ci.nsIPrompt,
Ci.nsIProgressEventSink,
Ci.nsIInterfaceRequestor,
Ci.nsISupports],
// Auth requests appear to succeed when we cancel them (since the server
// redirects us to a "you're not authorized" page), so we have to set a flag
// to let the load handler know to treat the load as a failure.
get _authFailed() { return this.__authFailed; },
set _authFailed(newValue) { return this.__authFailed = newValue },
// nsISupports
QueryInterface: function DAP_QueryInterface(iid) {
if (!this.interfaces.some( function(v) { return iid.equals(v) } ))
throw Cr.NS_ERROR_NO_INTERFACE;
// nsIAuthPrompt and nsIPrompt need separate implementations because
// their method signatures conflict. The other interfaces we implement
// within DummyAuthProvider itself.
switch(iid) {
case Ci.nsIAuthPrompt:
return this.authPrompt;
case Ci.nsIPrompt:
return this.prompt;
default:
return this;
}
},
// nsIInterfaceRequestor
getInterface: function DAP_getInterface(iid) {
return this.QueryInterface(iid);
},
// nsIBadCertListener
// Suppress UI and abort secure loads from servers with bad SSL certificates.
confirmUnknownIssuer: function DAP_confirmUnknownIssuer(socketInfo, cert, certAddType) {
return false;
},
confirmMismatchDomain: function DAP_confirmMismatchDomain(socketInfo, targetURL, cert) {
return false;
},
confirmCertExpired: function DAP_confirmCertExpired(socketInfo, cert) {
return false;
},
notifyCrlNextupdate: function DAP_notifyCrlNextupdate(socketInfo, targetURL, cert) {
},
// nsIAuthPromptProvider
getAuthPrompt: function(aPromptReason, aIID) {
this._authFailed = true;
throw Cr.NS_ERROR_NOT_AVAILABLE;
},
// HTTP always requests nsIAuthPromptProvider first, so it never needs
// nsIAuthPrompt, but not all channels use nsIAuthPromptProvider, so we
// implement nsIAuthPrompt too.
// nsIAuthPrompt
get authPrompt() {
var resource = this;
return {
QueryInterface: XPCOMUtils.generateQI([Ci.nsIPrompt]),
prompt: function(dialogTitle, text, passwordRealm, savePassword, defaultText, result) {
resource._authFailed = true;
return false;
},
promptUsernameAndPassword: function(dialogTitle, text, passwordRealm, savePassword, user, pwd) {
resource._authFailed = true;
return false;
},
promptPassword: function(dialogTitle, text, passwordRealm, savePassword, pwd) {
resource._authFailed = true;
return false;
}
};
},
// nsIPrompt
get prompt() {
var resource = this;
return {
QueryInterface: XPCOMUtils.generateQI([Ci.nsIPrompt]),
alert: function(dialogTitle, text) {
throw Cr.NS_ERROR_NOT_IMPLEMENTED;
},
alertCheck: function(dialogTitle, text, checkMessage, checkValue) {
throw Cr.NS_ERROR_NOT_IMPLEMENTED;
},
confirm: function(dialogTitle, text) {
throw Cr.NS_ERROR_NOT_IMPLEMENTED;
},
confirmCheck: function(dialogTitle, text, checkMessage, checkValue) {
throw Cr.NS_ERROR_NOT_IMPLEMENTED;
},
confirmEx: function(dialogTitle, text, buttonFlags, button0Title, button1Title, button2Title, checkMsg, checkValue) {
throw Cr.NS_ERROR_NOT_IMPLEMENTED;
},
prompt: function(dialogTitle, text, value, checkMsg, checkValue) {
throw Cr.NS_ERROR_NOT_IMPLEMENTED;
},
promptPassword: function(dialogTitle, text, password, checkMsg, checkValue) {
resource._authFailed = true;
return false;
},
promptUsernameAndPassword: function(dialogTitle, text, username, password, checkMsg, checkValue) {
resource._authFailed = true;
return false;
},
select: function(dialogTitle, text, count, selectList, outSelection) {
throw Cr.NS_ERROR_NOT_IMPLEMENTED;
}
};
},
// nsIProgressEventSink
onProgress: function DAP_onProgress(aRequest, aContext,
aProgress, aProgressMax) {
},
onStatus: function DAP_onStatus(aRequest, aContext,
aStatus, aStatusArg) {
}
};
function addModuleAlias(alias, extensionId) {
let ioSvc = Cc["@mozilla.org/network/io-service;1"]
.getService(Ci.nsIIOService);
let resProt = ioSvc.getProtocolHandler("resource")
.QueryInterface(Ci.nsIResProtocolHandler);
if (!resProt.hasSubstitution(alias)) {
let extMgr = Cc["@mozilla.org/extensions/manager;1"]
.getService(Ci.nsIExtensionManager);
let loc = extMgr.getInstallLocation(extensionId);
let extD = loc.getItemLocation(extensionId);
extD.append("modules");
resProt.setSubstitution(alias, ioSvc.newFileURI(extD));
}
}

697
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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Bookmarks Sync.
*
* The Initial Developer of the Original Code is Mozilla.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Dan Mills <thunder@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
const EXPORTED_SYMBOLS = ['BookmarksEngine'];
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
const Cu = Components.utils;
addModuleAlias("weave", "{340c2bbc-ce74-4362-90b5-7c26312808ef}");
Cu.import("resource://weave/log4moz.js");
Cu.import("resource://weave/constants.js");
Cu.import("resource://weave/util.js");
Cu.import("resource://weave/crypto.js");
Cu.import("resource://weave/stores.js");
Cu.import("resource://weave/syncCores.js");
Function.prototype.async = generatorAsync;
let Crypto = new WeaveCrypto();
function BookmarksEngine(davCollection, cryptoId) {
this._init(davCollection, cryptoId);
}
BookmarksEngine.prototype = {
_logName: "BmkEngine",
__os: null,
get _os() {
if (!this.__os)
this.__os = Cc["@mozilla.org/observer-service;1"]
.getService(Ci.nsIObserverService);
return this.__os;
},
__store: null,
get _store() {
if (!this.__store)
this.__store = new BookmarksStore();
return this.__store;
},
__core: null,
get _core() {
if (!this.__core)
this.__core = new BookmarksSyncCore();
return this.__core;
},
__snapshot: null,
get _snapshot() {
if (!this.__snapshot)
this.__snapshot = new SnapshotStore();
return this.__snapshot;
},
set _snapshot(value) {
this.__snapshot = value;
},
_init: function BmkEngine__init(davCollection, cryptoId) {
this._dav = davCollection;
this._cryptoId = cryptoId;
this._log = Log4Moz.Service.getLogger("Service." + this._logName);
this._snapshot.load();
},
_checkStatus: function BmkEngine__checkStatus(code, msg) {
if (code >= 200 && code < 300)
return;
this._log.error(msg + " Error code: " + code);
throw 'checkStatus failed';
},
/* Get the deltas/combined updates from the server
* Returns:
* status:
* -1: error
* 0: ok
* These fields may be null when status is -1:
* formatVersion:
* version of the data format itself. For compatibility checks.
* maxVersion:
* the latest version on the server
* snapVersion:
* the version of the current snapshot on the server (deltas not applied)
* snapEncryption:
* encryption algorithm currently used on the server-stored snapshot
* deltasEncryption:
* encryption algorithm currently used on the server-stored deltas
* snapshot:
* full snapshot of the latest server version (deltas applied)
* deltas:
* all of the individual deltas on the server
* updates:
* the relevant deltas (from our snapshot version to current),
* combined into a single set.
*/
_getServerData: function BmkEngine__getServerData(onComplete) {
let [self, cont] = yield;
let ret = {status: -1,
formatVersion: null, maxVersion: null, snapVersion: null,
snapEncryption: null, deltasEncryption: null,
snapshot: null, deltas: null, updates: null};
try {
this._log.info("Getting bookmarks status from server");
this._dav.GET("bookmarks-status.json", cont);
let resp = yield;
let status = resp.status;
switch (status) {
case 200:
this._log.info("Got bookmarks status from server");
let status = eval(resp.responseText);
let deltas, allDeltas;
let snap = new SnapshotStore();
// Bail out if the server has a newer format version than we can parse
if (status.formatVersion > STORAGE_FORMAT_VERSION) {
this._log.error("Server uses storage format v" + status.formatVersion +
", this client understands up to v" + STORAGE_FORMAT_VERSION);
generatorDone(this, self, onComplete, ret)
return;
}
if (status.formatVersion == 0) {
ret.snapEncryption = status.snapEncryption = "none";
ret.deltasEncryption = status.deltasEncryption = "none";
}
if (status.GUID != this._snapshot.GUID) {
this._log.info("Remote/local sync GUIDs do not match. " +
"Forcing initial sync.");
this._store.resetGUIDs();
this._snapshot.data = {};
this._snapshot.version = -1;
this._snapshot.GUID = status.GUID;
}
if (this._snapshot.version < status.snapVersion) {
if (this._snapshot.version >= 0)
this._log.info("Local snapshot is out of date");
this._log.info("Downloading server snapshot");
this._dav.GET("bookmarks-snapshot.json", cont);
resp = yield;
this._checkStatus(resp.status, "Could not download snapshot.");
snap.data = Crypto.PBEdecrypt(resp.responseText,
this._cryptoId,
status.snapEncryption);
this._log.info("Downloading server deltas");
this._dav.GET("bookmarks-deltas.json", cont);
resp = yield;
this._checkStatus(resp.status, "Could not download deltas.");
allDeltas = Crypto.PBEdecrypt(resp.responseText,
this._cryptoId,
status.deltasEncryption);
deltas = eval(uneval(allDeltas));
} else if (this._snapshot.version >= status.snapVersion &&
this._snapshot.version < status.maxVersion) {
snap.data = eval(uneval(this._snapshot.data));
this._log.info("Downloading server deltas");
this._dav.GET("bookmarks-deltas.json", cont);
resp = yield;
this._checkStatus(resp.status, "Could not download deltas.");
allDeltas = Crypto.PBEdecrypt(resp.responseText,
this._cryptoId,
status.deltasEncryption);
deltas = allDeltas.slice(this._snapshot.version - status.snapVersion);
} else if (this._snapshot.version == status.maxVersion) {
snap.data = eval(uneval(this._snapshot.data));
// FIXME: could optimize this case by caching deltas file
this._log.info("Downloading server deltas");
this._dav.GET("bookmarks-deltas.json", cont);
resp = yield;
this._checkStatus(resp.status, "Could not download deltas.");
allDeltas = Crypto.PBEdecrypt(resp.responseText,
this._cryptoId,
status.deltasEncryption);
deltas = [];
} else { // this._snapshot.version > status.maxVersion
this._log.error("Server snapshot is older than local snapshot");
return;
}
for (var i = 0; i < deltas.length; i++) {
snap.applyCommands(deltas[i]);
}
ret.status = 0;
ret.formatVersion = status.formatVersion;
ret.maxVersion = status.maxVersion;
ret.snapVersion = status.snapVersion;
ret.snapEncryption = status.snapEncryption;
ret.deltasEncryption = status.deltasEncryption;
ret.snapshot = snap.data;
ret.deltas = allDeltas;
this._core.detectUpdates(cont, this._snapshot.data, snap.data);
ret.updates = yield;
break;
case 404:
this._log.info("Server has no status file, Initial upload to server");
this._snapshot.data = this._store.wrap();
this._snapshot.version = 0;
this._snapshot.GUID = null; // in case there are other snapshots out there
this._fullUpload.async(this, cont);
let uploadStatus = yield;
if (!uploadStatus)
return;
this._log.info("Initial upload to server successful");
this.snapshot.save();
ret.status = 0;
ret.formatVersion = STORAGE_FORMAT_VERSION;
ret.maxVersion = this._snapshot.version;
ret.snapVersion = this._snapshot.version;
ret.snapEncryption = Crypto.defaultAlgorithm;
ret.deltasEncryption = Crypto.defaultAlgorithm;
ret.snapshot = eval(uneval(this._snapshot.data));
ret.deltas = [];
ret.updates = [];
break;
default:
this._log.error("Could not get bookmarks.status: unknown HTTP status code " +
status);
break;
}
} catch (e) {
if (e != 'checkStatus failed' &&
e != 'decrypt failed')
this._log.error("Exception caught: " + e.message);
} finally {
generatorDone(this, self, onComplete, ret)
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
},
_fullUpload: function BmkEngine__fullUpload(onComplete) {
let [self, cont] = yield;
let ret = false;
try {
let data = Crypto.PBEencrypt(this._snapshot.serialize(),
this._cryptoId);
this._dav.PUT("bookmarks-snapshot.json", data, cont);
resp = yield;
this._checkStatus(resp.status, "Could not upload snapshot.");
this._dav.PUT("bookmarks-deltas.json", uneval([]), cont);
resp = yield;
this._checkStatus(resp.status, "Could not upload deltas.");
let c = 0;
for (GUID in this._snapshot.data)
c++;
this._dav.PUT("bookmarks-status.json",
uneval({GUID: this._snapshot.GUID,
formatVersion: STORAGE_FORMAT_VERSION,
snapVersion: this._snapshot.version,
maxVersion: this._snapshot.version,
snapEncryption: Crypto.defaultAlgorithm,
deltasEncryption: "none",
bookmarksCount: c}), cont);
resp = yield;
this._checkStatus(resp.status, "Could not upload status file.");
this._log.info("Full upload to server successful");
ret = true;
} catch (e) {
if (e != 'checkStatus failed')
this._log.error("Exception caught: " + e.message);
} finally {
generatorDone(this, self, onComplete, ret)
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
},
// original
// / \
// A / \ B
// / \
// client --C-> server
// \ /
// D \ / C
// \ /
// final
// If we have a saved snapshot, original == snapshot. Otherwise,
// it's the empty set {}.
// C is really the diff between server -> final, so if we determine
// D we can calculate C from that. In the case where A and B have
// no conflicts, C == A and D == B.
// Sync flow:
// 1) Fetch server deltas
// 1.1) Construct current server status from snapshot + server deltas
// 1.2) Generate single delta from snapshot -> current server status ("B")
// 2) Generate local deltas from snapshot -> current client status ("A")
// 3) Reconcile client/server deltas and generate new deltas for them.
// Reconciliation won't generate C directly, we will simply diff
// server->final after step 3.1.
// 3.1) Apply local delta with server changes ("D")
// 3.2) Append server delta to the delta file and upload ("C")
_sync: function BmkEngine__sync(onComplete) {
let [self, cont] = yield;
let synced = false, locked = null;
try {
this._log.info("Beginning sync");
this._os.notifyObservers(null, "bookmarks-sync:sync-start", "");
this._dav.lock.async(this._dav, cont);
locked = yield;
if (locked)
this._log.info("Lock acquired");
else {
this._log.warn("Could not acquire lock, aborting sync");
return;
}
// 1) Fetch server deltas
this._getServerData.async(this, cont);
let server = yield;
this._log.info("Local snapshot version: " + this._snapshot.version);
this._log.info("Server status: " + server.status);
this._log.info("Server maxVersion: " + server.maxVersion);
this._log.info("Server snapVersion: " + server.snapVersion);
if (server.status != 0) {
this._log.fatal("Sync error: could not get server status, " +
"or initial upload failed. Aborting sync.");
return;
}
// 2) Generate local deltas from snapshot -> current client status
let localJson = new SnapshotStore();
localJson.data = this._store.wrap();
this._core.detectUpdates(cont, this._snapshot.data, localJson.data);
let localUpdates = yield;
this._log.debug("local json:\n" + localJson.serialize());
this._log.debug("Local updates: " + serializeCommands(localUpdates));
this._log.debug("Server updates: " + serializeCommands(server.updates));
if (server.updates.length == 0 && localUpdates.length == 0) {
this._snapshot.version = server.maxVersion;
this._log.info("Sync complete (1): no changes needed on client or server");
synced = true;
return;
}
// 3) Reconcile client/server deltas and generate new deltas for them.
this._log.info("Reconciling client/server updates");
this._core.reconcile(cont, localUpdates, server.updates);
let ret = yield;
let clientChanges = ret.propagations[0];
let serverChanges = ret.propagations[1];
let clientConflicts = ret.conflicts[0];
let serverConflicts = ret.conflicts[1];
this._log.info("Changes for client: " + clientChanges.length);
this._log.info("Predicted changes for server: " + serverChanges.length);
this._log.info("Client conflicts: " + clientConflicts.length);
this._log.info("Server conflicts: " + serverConflicts.length);
this._log.debug("Changes for client: " + serializeCommands(clientChanges));
this._log.debug("Predicted changes for server: " + serializeCommands(serverChanges));
this._log.debug("Client conflicts: " + serializeConflicts(clientConflicts));
this._log.debug("Server conflicts: " + serializeConflicts(serverConflicts));
if (!(clientChanges.length || serverChanges.length ||
clientConflicts.length || serverConflicts.length)) {
this._log.info("Sync complete (2): no changes needed on client or server");
this._snapshot.data = localJson.data;
this._snapshot.version = server.maxVersion;
this._snapshot.save();
synced = true;
return;
}
if (clientConflicts.length || serverConflicts.length) {
this._log.warn("Conflicts found! Discarding server changes");
}
let savedSnap = eval(uneval(this._snapshot.data));
let savedVersion = this._snapshot.version;
let newSnapshot;
// 3.1) Apply server changes to local store
if (clientChanges.length) {
this._log.info("Applying changes locally");
// Note that we need to need to apply client changes to the
// current tree, not the saved snapshot
localJson.applyCommands(clientChanges);
this._snapshot.data = localJson.data;
this._snapshot.version = server.maxVersion;
this._store.applyCommands(clientChanges);
newSnapshot = this._store.wrap();
this._core.detectUpdates(cont, this._snapshot.data, newSnapshot);
let diff = yield;
if (diff.length != 0) {
this._log.warn("Commands did not apply correctly");
this._log.debug("Diff from snapshot+commands -> " +
"new snapshot after commands:\n" +
serializeCommands(diff));
// FIXME: do we really want to revert the snapshot here?
this._snapshot.data = eval(uneval(savedSnap));
this._snapshot.version = savedVersion;
}
this._snapshot.save();
}
// 3.2) Append server delta to the delta file and upload
// Generate a new diff, from the current server snapshot to the
// current client snapshot. In the case where there are no
// conflicts, it should be the same as what the resolver returned
newSnapshot = this._store.wrap();
this._core.detectUpdates(cont, server.snapshot, newSnapshot);
let serverDelta = yield;
// Log an error if not the same
if (!(serverConflicts.length ||
deepEquals(serverChanges, serverDelta)))
this._log.warn("Predicted server changes differ from " +
"actual server->client diff (can be ignored in many cases)");
this._log.info("Actual changes for server: " + serverDelta.length);
this._log.debug("Actual changes for server: " +
serializeCommands(serverDelta));
if (serverDelta.length) {
this._log.info("Uploading changes to server");
this._snapshot.data = newSnapshot;
this._snapshot.version = ++server.maxVersion;
server.deltas.push(serverDelta);
if (server.formatVersion != STORAGE_FORMAT_VERSION ||
this._encryptionChanged) {
this._fullUpload.async(this, cont);
let status = yield;
if (!status)
this._log.error("Could not upload files to server"); // eep?
} else {
let data = Crypto.PBEencrypt(serializeCommands(server.deltas),
this._cryptoId);
this._dav.PUT("bookmarks-deltas.json", data, cont);
let deltasPut = yield;
let c = 0;
for (GUID in this._snapshot.data)
c++;
this._dav.PUT("bookmarks-status.json",
uneval({GUID: this._snapshot.GUID,
formatVersion: STORAGE_FORMAT_VERSION,
snapVersion: server.snapVersion,
maxVersion: this._snapshot.version,
snapEncryption: server.snapEncryption,
deltasEncryption: Crypto.defaultAlgorithm,
Bookmarkscount: c}), cont);
let statusPut = yield;
if (deltasPut.status >= 200 && deltasPut.status < 300 &&
statusPut.status >= 200 && statusPut.status < 300) {
this._log.info("Successfully updated deltas and status on server");
this._snapshot.save();
} else {
// FIXME: revert snapshot here? - can't, we already applied
// updates locally! - need to save and retry
this._log.error("Could not update deltas on server");
}
}
}
this._log.info("Sync complete");
synced = true;
} catch (e) {
this._log.error("Exception caught: " + e.message);
} finally {
let ok = false;
if (locked) {
this._dav.unlock.async(this._dav, cont);
ok = yield;
}
if (ok && synced) {
this._os.notifyObservers(null, "bookmarks-sync:sync-end", "");
generatorDone(this, self, onComplete, true);
} else {
this._os.notifyObservers(null, "bookmarks-sync:sync-error", "");
generatorDone(this, self, onComplete, false);
}
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
},
_resetServer: function BmkEngine__resetServer(onComplete) {
let [self, cont] = yield;
let done = false;
try {
this._log.debug("Resetting server data");
this._os.notifyObservers(null, "bookmarks-sync:reset-server-start", "");
this._dav.lock.async(this._dav, cont);
let locked = yield;
if (locked)
this._log.debug("Lock acquired");
else {
this._log.warn("Could not acquire lock, aborting server reset");
return;
}
this._dav.DELETE("bookmarks-status.json", cont);
let statusResp = yield;
this._dav.DELETE("bookmarks-snapshot.json", cont);
let snapshotResp = yield;
this._dav.DELETE("bookmarks-deltas.json", cont);
let deltasResp = yield;
this._dav.unlock.async(this._dav, cont);
let unlocked = yield;
function ok(code) {
if (code >= 200 && code < 300)
return true;
if (code == 404)
return true;
return false;
}
if (!(ok(statusResp.status) && ok(snapshotResp.status) &&
ok(deltasResp.status))) {
this._log.error("Could delete server data, response codes " +
statusResp.status + ", " + snapshotResp.status + ", " +
deltasResp.status);
return;
}
this._log.debug("Server files deleted");
done = true;
} catch (e) {
this._log.error("Exception caught: " + e.message);
} finally {
if (done) {
this._log.debug("Server reset completed successfully");
this._os.notifyObservers(null, "bookmarks-sync:reset-server-end", "");
} else {
this._log.debug("Server reset failed");
this._os.notifyObservers(null, "bookmarks-sync:reset-server-error", "");
}
generatorDone(this, self, onComplete, done)
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
},
_resetClient: function BmkEngine__resetClient(onComplete) {
let [self, cont] = yield;
let done = false;
try {
this._log.debug("Resetting client state");
this._os.notifyObservers(null, "bookmarks-sync:reset-client-start", "");
this._snapshot.data = {};
this._snapshot.version = -1;
this.snapshot.save();
done = true;
} catch (e) {
this._log.error("Exception caught: " + e.message);
} finally {
if (done) {
this._log.debug("Client reset completed successfully");
this._os.notifyObservers(null, "bookmarks-sync:reset-client-end", "");
} else {
this._log.debug("Client reset failed");
this._os.notifyObservers(null, "bookmarks-sync:reset-client-error", "");
}
generatorDone(this, self, onComplete, done);
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
},
sync: function BmkEngine_sync(onComplete) {
return this._sync.async(this, onComplete);
},
resetServer: function BmkEngine_resetServer(onComplete) {
return this._resetServer.async(this, onComplete);
},
resetClient: function BmkEngine_resetClient(onComplete) {
return this._resetClient.async(this, onComplete);
}
};
serializeCommands: function serializeCommands(commands) {
let json = uneval(commands);
json = json.replace(/ {action/g, "\n {action");
return json;
}
serializeConflicts: function serializeConflicts(conflicts) {
let json = uneval(conflicts);
json = json.replace(/ {action/g, "\n {action");
return json;
}
function addModuleAlias(alias, extensionId) {
let ioSvc = Cc["@mozilla.org/network/io-service;1"]
.getService(Ci.nsIIOService);
let resProt = ioSvc.getProtocolHandler("resource")
.QueryInterface(Ci.nsIResProtocolHandler);
if (!resProt.hasSubstitution(alias)) {
let extMgr = Cc["@mozilla.org/extensions/manager;1"]
.getService(Ci.nsIExtensionManager);
let loc = extMgr.getInstallLocation(extensionId);
let extD = loc.getItemLocation(extensionId);
extD.append("modules");
resProt.setSubstitution(alias, ioSvc.newFileURI(extD));
}
}

133
services/sync/modules/identity.js Normal file
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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Bookmarks Sync.
*
* The Initial Developer of the Original Code is Mozilla.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Dan Mills <thunder@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
const EXPORTED_SYMBOLS = ['Identity'];
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
const Cu = Components.utils;
addModuleAlias("weave", "{340c2bbc-ce74-4362-90b5-7c26312808ef}");
Cu.import("resource://weave/log4moz.js");
Cu.import("resource://weave/constants.js");
Cu.import("resource://weave/util.js");
/*
* Identity
* These objects hold a realm, username, and password
* They can hold a password in memory, but will try to fetch it from
* the password manager if it's not set.
* FIXME: need to rethink this stuff as part of a bigger identity mgmt framework
*/
function Identity(realm, username, password) {
this._realm = realm;
this._username = username;
this._password = password;
}
Identity.prototype = {
get realm() { return this._realm; },
set realm(value) { this._realm = value; },
get username() { return this._username; },
set username(value) { this._username = value; },
_password: null,
get password() {
if (this._password === null)
return findPassword(this.realm, this.username);
return this._password;
},
set password(value) {
setPassword(this.realm, this.username, value);
},
setTempPassword: function Id_setTempPassword(value) {
this._password = value;
}
};
// fixme: move these to util.js?
function findPassword(realm, username) {
// fixme: make a request and get the realm ?
let password;
let lm = Cc["@mozilla.org/login-manager;1"].getService(Ci.nsILoginManager);
let logins = lm.findLogins({}, 'chrome://sync', null, realm);
for (let i = 0; i < logins.length; i++) {
if (logins[i].username == username) {
password = logins[i].password;
break;
}
}
return password;
}
function setPassword(realm, username, password) {
// cleanup any existing passwords
let lm = Cc["@mozilla.org/login-manager;1"].getService(Ci.nsILoginManager);
let logins = lm.findLogins({}, 'chrome://sync', null, realm);
for(let i = 0; i < logins.length; i++) {
lm.removeLogin(logins[i]);
}
if (!password)
return;
// save the new one
let nsLoginInfo = new Components.Constructor(
"@mozilla.org/login-manager/loginInfo;1", Ci.nsILoginInfo, "init");
let login = new nsLoginInfo('chrome://sync', null, realm,
username, password, null, null);
lm.addLogin(login);
}
function addModuleAlias(alias, extensionId) {
let ioSvc = Cc["@mozilla.org/network/io-service;1"]
.getService(Ci.nsIIOService);
let resProt = ioSvc.getProtocolHandler("resource")
.QueryInterface(Ci.nsIResProtocolHandler);
if (!resProt.hasSubstitution(alias)) {
let extMgr = Cc["@mozilla.org/extensions/manager;1"]
.getService(Ci.nsIExtensionManager);
let loc = extMgr.getInstallLocation(extensionId);
let extD = loc.getItemLocation(extensionId);
extD.append("modules");
resProt.setSubstitution(alias, ioSvc.newFileURI(extD));
}
}

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services/sync/modules/service.js Normal file
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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Bookmarks Sync.
*
* The Initial Developer of the Original Code is Mozilla.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Dan Mills <thunder@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
const EXPORTED_SYMBOLS = ['WeaveSyncService'];
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
const Cu = Components.utils;
addModuleAlias("weave", "{340c2bbc-ce74-4362-90b5-7c26312808ef}");
Cu.import("resource://weave/log4moz.js");
Cu.import("resource://weave/constants.js");
Cu.import("resource://weave/util.js");
Cu.import("resource://weave/crypto.js");
Cu.import("resource://weave/engines.js");
Cu.import("resource://weave/dav.js");
Cu.import("resource://weave/identity.js");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Function.prototype.async = generatorAsync;
/*
* Service singleton
* Main entry point into Weave's sync framework
*/
function WeaveSyncService() { this._init(); }
WeaveSyncService.prototype = {
__os: null,
get _os() {
if (!this.__os)
this.__os = Cc["@mozilla.org/observer-service;1"]
.getService(Ci.nsIObserverService);
return this.__os;
},
__dirSvc: null,
get _dirSvc() {
if (!this.__dirSvc)
this.__dirSvc = Cc["@mozilla.org/file/directory_service;1"].
getService(Ci.nsIProperties);
return this.__dirSvc;
},
__dav: null,
get _dav() {
if (!this.__dav)
this.__dav = new DAVCollection();
return this.__dav;
},
__bmkEngine: null,
get _bmkEngine() {
if (!this.__bmkEngine)
this.__bmkEngine = new BookmarksEngine(this._dav, this._cryptoId);
return this.__bmkEngine;
},
// Logger object
_log: null,
// Timer object for automagically syncing
_scheduleTimer: null,
__mozId: null,
get _mozId() {
if (this.__mozId === null)
this.__mozId = new Identity('Mozilla Services Password', this.username);
return this.__mozId;
},
__cryptoId: null,
get _cryptoId() {
if (this.__cryptoId === null)
this.__cryptoId = new Identity('Mozilla Services Encryption Passphrase',
this.username);
return this.__cryptoId;
},
get username() {
let branch = Cc["@mozilla.org/preferences-service;1"]
.getService(Ci.nsIPrefBranch);
return branch.getCharPref("browser.places.sync.username");
},
set username(value) {
let branch = Cc["@mozilla.org/preferences-service;1"]
.getService(Ci.nsIPrefBranch);
branch.setCharPref("browser.places.sync.username", value);
// fixme - need to loop over all Identity objects - needs some rethinking...
this._mozId.username = value;
this._cryptoId.username = value;
},
get password() { return this._mozId.password; },
set password(value) { this._mozId.password = value; },
get passphrase() { return this._cryptoId.password; },
set passphrase(value) { this._cryptoId.password = value; },
get userPath() {
this._log.info("Hashing username " + this.username);
let converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"].
createInstance(Ci.nsIScriptableUnicodeConverter);
converter.charset = "UTF-8";
let hasher = Cc["@mozilla.org/security/hash;1"]
.createInstance(Ci.nsICryptoHash);
hasher.init(hasher.SHA1);
let data = converter.convertToByteArray(this.username, {});
hasher.update(data, data.length);
let rawHash = hasher.finish(false);
// return the two-digit hexadecimal code for a byte
function toHexString(charCode) {
return ("0" + charCode.toString(16)).slice(-2);
}
let hash = [toHexString(rawHash.charCodeAt(i)) for (i in rawHash)].join("");
this._log.debug("Username hashes to " + hash);
return hash;
},
get currentUser() {
if (this._dav.loggedIn)
return this.username;
return null;
},
_init: function BSS__init() {
this._initLogs();
this._log.info("Weave Sync Service Initializing");
this._serverURL = 'https://services.mozilla.com/';
this._user = '';
let enabled = false;
let schedule = 0;
try {
let branch = Cc["@mozilla.org/preferences-service;1"].
getService(Ci.nsIPrefBranch2);
this._serverURL = branch.getCharPref("browser.places.sync.serverURL");
enabled = branch.getBoolPref("browser.places.sync.enabled");
schedule = branch.getIntPref("browser.places.sync.schedule");
branch.addObserver("browser.places.sync", this, false);
}
catch (ex) { /* use defaults */ }
if (!enabled) {
this._log.info("Bookmarks sync disabled");
return;
}
switch (schedule) {
case 0:
this._log.info("Bookmarks sync enabled, manual mode");
break;
case 1:
this._log.info("Bookmarks sync enabled, automagic mode");
this._enableSchedule();
break;
default:
this._log.info("Bookmarks sync enabled");
this._log.info("Invalid schedule setting: " + schedule);
break;
}
},
_enableSchedule: function BSS__enableSchedule() {
this._scheduleTimer = Cc["@mozilla.org/timer;1"].
createInstance(Ci.nsITimer);
let listener = new EventListener(bind2(this, this._onSchedule));
this._scheduleTimer.initWithCallback(listener, 1800000, // 30 min
this._scheduleTimer.TYPE_REPEATING_SLACK);
},
_disableSchedule: function BSS__disableSchedule() {
this._scheduleTimer = null;
},
_onSchedule: function BSS__onSchedule() {
this._log.info("Running scheduled sync");
this.sync();
},
_initLogs: function BSS__initLogs() {
this._log = Log4Moz.Service.getLogger("Service.Main");
let formatter = Log4Moz.Service.newFormatter("basic");
let root = Log4Moz.Service.rootLogger;
root.level = Log4Moz.Level.Debug;
let capp = Log4Moz.Service.newAppender("console", formatter);
capp.level = Log4Moz.Level.Warn;
root.addAppender(capp);
let dapp = Log4Moz.Service.newAppender("dump", formatter);
dapp.level = Log4Moz.Level.All;
root.addAppender(dapp);
let logFile = this._dirSvc.get("ProfD", Ci.nsIFile);
let verboseFile = logFile.clone();
logFile.append("bm-sync.log");
logFile.QueryInterface(Ci.nsILocalFile);
verboseFile.append("bm-sync-verbose.log");
verboseFile.QueryInterface(Ci.nsILocalFile);
let fapp = Log4Moz.Service.newFileAppender("rotating", logFile, formatter);
fapp.level = Log4Moz.Level.Info;
root.addAppender(fapp);
let vapp = Log4Moz.Service.newFileAppender("rotating", verboseFile, formatter);
vapp.level = Log4Moz.Level.Debug;
root.addAppender(vapp);
},
_lock: function BSS__lock() {
if (this._locked) {
this._log.warn("Service lock failed: already locked");
return false;
}
this._locked = true;
this._log.debug("Service lock acquired");
return true;
},
_unlock: function BSS__unlock() {
this._locked = false;
this._log.debug("Service lock released");
},
// IBookmarksSyncService internal implementation
_login: function BSS__login(onComplete) {
let [self, cont] = yield;
let success = false;
try {
this._log.debug("Logging in");
this._os.notifyObservers(null, "bookmarks-sync:login-start", "");
if (!this.username) {
this._log.warn("No username set, login failed");
this._os.notifyObservers(null, "bookmarks-sync:login-error", "");
return;
}
if (!this.password) {
this._log.warn("No password given or found in password manager");
this._os.notifyObservers(null, "bookmarks-sync:login-error", "");
return;
}
this._dav.baseURL = this._serverURL + "user/" + this.userPath + "/";
this._log.info("Using server URL: " + this._dav.baseURL);
this._dav.login.async(this._dav, cont, this.username, this.password);
success = yield;
} catch (e) {
this._log.error("Exception caught: " + e.message);
} finally {
this._passphrase = null;
if (success) {
this._log.debug("Login successful");
this._os.notifyObservers(null, "bookmarks-sync:login-end", "");
} else {
this._log.debug("Login error");
this._os.notifyObservers(null, "bookmarks-sync:login-error", "");
}
generatorDone(this, self, onComplete, success);
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
},
_resetLock: function BSS__resetLock(onComplete) {
let [self, cont] = yield;
let success = false;
try {
this._log.debug("Resetting server lock");
this._os.notifyObservers(null, "bookmarks-sync:lock-reset-start", "");
this._dav.forceUnlock.async(this._dav, cont);
success = yield;
} catch (e) {
this._log.error("Exception caught: " + e.message);
} finally {
if (success) {
this._log.debug("Server lock reset successful");
this._os.notifyObservers(null, "bookmarks-sync:lock-reset-end", "");
} else {
this._log.debug("Server lock reset failed");
this._os.notifyObservers(null, "bookmarks-sync:lock-reset-error", "");
}
generatorDone(this, self, onComplete, success);
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
},
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver, Ci.nsISupports]),
// nsIObserver
observe: function BSS__observe(subject, topic, data) {
switch (topic) {
case "browser.places.sync.enabled":
switch (data) {
case false:
this._log.info("Disabling automagic bookmarks sync");
this._disableSchedule();
break;
case true:
this._log.info("Enabling automagic bookmarks sync");
this._enableSchedule();
break;
}
break;
case "browser.places.sync.schedule":
switch (data) {
case 0:
this._log.info("Disabling automagic bookmarks sync");
this._disableSchedule();
break;
case 1:
this._log.info("Enabling automagic bookmarks sync");
this._enableSchedule();
break;
default:
this._log.warn("Unknown schedule value set");
break;
}
break;
default:
// ignore, there are prefs we observe but don't care about
}
},
// IBookmarksSyncService public methods
// These are global (for all engines)
login: function BSS_login(password, passphrase) {
if (!this._lock())
return;
// cache password & passphrase
// if null, _login() will try to get them from the pw manager
this._mozId.setTempPassword(password);
this._cryptoId.setTempPassword(passphrase);
let self = this;
this._login.async(this, function() {self._unlock()});
},
logout: function BSS_logout() {
this._log.info("Logging out");
this._dav.logout();
this._mozId.setTempPassword(null); // clear cached password
this._cryptoId.setTempPassword(null); // and passphrase
this._os.notifyObservers(null, "bookmarks-sync:logout", "");
},
resetLock: function BSS_resetLock() {
if (!this._lock())
return;
let self = this;
this._resetLock.async(this, function() {self._unlock()});
},
// These are per-engine
sync: function BSS_sync() {
if (!this._lock())
return;
let self = this;
this._bmkEngine.sync(function() {self._unlock()});
},
resetServer: function BSS_resetServer() {
if (!this._lock())
return;
let self = this;
this._bmkEngine.resetServer(function() {self._unlock()});
},
resetClient: function BSS_resetClient() {
if (!this._lock())
return;
let self = this;
this._bmkEngine.resetClient(function() {self._unlock()});
}
};
function addModuleAlias(alias, extensionId) {
let ioSvc = Cc["@mozilla.org/network/io-service;1"]
.getService(Ci.nsIIOService);
let resProt = ioSvc.getProtocolHandler("resource")
.QueryInterface(Ci.nsIResProtocolHandler);
if (!resProt.hasSubstitution(alias)) {
let extMgr = Cc["@mozilla.org/extensions/manager;1"]
.getService(Ci.nsIExtensionManager);
let loc = extMgr.getInstallLocation(extensionId);
let extD = loc.getItemLocation(extensionId);
extD.append("modules");
resProt.setSubstitution(alias, ioSvc.newFileURI(extD));
}
}

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Bookmarks Sync.
*
* The Initial Developer of the Original Code is Mozilla.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Dan Mills <thunder@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
const EXPORTED_SYMBOLS = ['Store', 'SnapshotStore', 'BookmarksStore'];
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
const Cu = Components.utils;
addModuleAlias("weave", "{340c2bbc-ce74-4362-90b5-7c26312808ef}");
Cu.import("resource://weave/log4moz.js");
Cu.import("resource://weave/constants.js");
Cu.import("resource://weave/util.js");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
/*
* Data Stores
* These can wrap, serialize items and apply commands
*/
function Store() {
this._init();
}
Store.prototype = {
_logName: "Store",
_init: function Store__init() {
this._log = Log4Moz.Service.getLogger("Service." + this._logName);
},
wrap: function Store_wrap() {
},
applyCommands: function Store_applyCommands(commandList) {
}
};
function SnapshotStore() {
this._init();
}
SnapshotStore.prototype = {
_logName: "SStore",
__dirSvc: null,
get _dirSvc() {
if (!this.__dirSvc)
this.__dirSvc = Cc["@mozilla.org/file/directory_service;1"].
getService(Ci.nsIProperties);
return this.__dirSvc;
},
// Last synced tree, version, and GUID (to detect if the store has
// been completely replaced and invalidate the snapshot)
_data: {},
get data() { return this._data; },
set data(value) { this._data = value; },
_version: 0,
get version() { return this._version; },
set version(value) { this._version = value; },
_GUID: null,
get GUID() {
if (!this._GUID) {
let uuidgen = Cc["@mozilla.org/uuid-generator;1"].
getService(Ci.nsIUUIDGenerator);
this._GUID = uuidgen.generateUUID().toString().replace(/[{}]/g, '');
}
return this._GUID;
},
set GUID(GUID) {
this._GUID = GUID;
},
save: function SStore_save() {
this._log.info("Saving snapshot to disk");
let file = this._dirSvc.get("ProfD", Ci.nsIFile);
file.append("bm-sync-snapshot.json");
file.QueryInterface(Ci.nsILocalFile);
if (!file.exists())
file.create(file.NORMAL_FILE_TYPE, PERMS_FILE);
let fos = Cc["@mozilla.org/network/file-output-stream;1"].
createInstance(Ci.nsIFileOutputStream);
let flags = MODE_WRONLY | MODE_CREATE | MODE_TRUNCATE;
fos.init(file, flags, PERMS_FILE, 0);
let out = {version: this.version,
GUID: this.GUID,
snapshot: this.data};
out = uneval(out);
fos.write(out, out.length);
fos.close();
},
load: function SStore_load() {
let file = this._dirSvc.get("ProfD", Ci.nsIFile);
file.append("bm-sync-snapshot.json");
if (!file.exists())
return;
let fis = Cc["@mozilla.org/network/file-input-stream;1"].
createInstance(Ci.nsIFileInputStream);
fis.init(file, MODE_RDONLY, PERMS_FILE, 0);
fis.QueryInterface(Ci.nsILineInputStream);
let json = "";
while (fis.available()) {
let ret = {};
fis.readLine(ret);
json += ret.value;
}
fis.close();
json = eval(json);
if (json && 'snapshot' in json && 'version' in json && 'GUID' in json) {
this._log.info("Read saved snapshot from disk");
this.data = json.snapshot;
this.version = json.version;
this.GUID = json.GUID;
}
},
serialize: function SStore_serialize() {
let json = uneval(this.data);
json = json.replace(/:{type/g, ":\n\t{type");
json = json.replace(/}, /g, "},\n ");
json = json.replace(/, parentGUID/g, ",\n\t parentGUID");
json = json.replace(/, index/g, ",\n\t index");
json = json.replace(/, title/g, ",\n\t title");
json = json.replace(/, URI/g, ",\n\t URI");
json = json.replace(/, tags/g, ",\n\t tags");
json = json.replace(/, keyword/g, ",\n\t keyword");
return json;
},
wrap: function SStore_wrap() {
},
applyCommands: function SStore_applyCommands(commands) {
for (let i = 0; i < commands.length; i++) {
// this._log.debug("Applying cmd to obj: " + uneval(commands[i]));
switch (commands[i].action) {
case "create":
this._data[commands[i].GUID] = eval(uneval(commands[i].data));
break;
case "edit":
if ("GUID" in commands[i].data) {
// special-case guid changes
let newGUID = commands[i].data.GUID,
oldGUID = commands[i].GUID;
this._data[newGUID] = this._data[oldGUID];
delete this._data[oldGUID]
for (let GUID in this._data) {
if (this._data[GUID].parentGUID == oldGUID)
this._data[GUID].parentGUID = newGUID;
}
}
for (let prop in commands[i].data) {
if (prop == "GUID")
continue;
this._data[commands[i].GUID][prop] = commands[i].data[prop];
}
break;
case "remove":
delete this._data[commands[i].GUID];
break;
}
}
return this._data;
}
};
SnapshotStore.prototype.__proto__ = new Store();
function BookmarksStore() {
this._init();
}
BookmarksStore.prototype = {
_logName: "BStore",
__bms: null,
get _bms() {
if (!this.__bms)
this.__bms = Cc["@mozilla.org/browser/nav-bookmarks-service;1"].
getService(Ci.nsINavBookmarksService);
return this.__bms;
},
__hsvc: null,
get _hsvc() {
if (!this.__hsvc)
this.__hsvc = Cc["@mozilla.org/browser/nav-history-service;1"].
getService(Ci.nsINavHistoryService);
return this.__hsvc;
},
__ls: null,
get _ls() {
if (!this.__ls)
this.__ls = Cc["@mozilla.org/browser/livemark-service;2"].
getService(Ci.nsILivemarkService);
return this.__ls;
},
__ms: null,
get _ms() {
if (!this.__ms)
this.__ms = Cc["@mozilla.org/microsummary/service;1"].
getService(Ci.nsIMicrosummaryService);
return this.__ms;
},
__ts: null,
get _ts() {
if (!this.__ts)
this.__ts = Cc["@mozilla.org/browser/tagging-service;1"].
getService(Ci.nsITaggingService);
return this.__ts;
},
__ans: null,
get _ans() {
if (!this.__ans)
this.__ans = Cc["@mozilla.org/browser/annotation-service;1"].
getService(Ci.nsIAnnotationService);
return this.__ans;
},
_getFolderNodes: function BSS__getFolderNodes(folder) {
let query = this._hsvc.getNewQuery();
query.setFolders([folder], 1);
return this._hsvc.executeQuery(query, this._hsvc.getNewQueryOptions()).root;
},
_wrapNode: function BSS__wrapNode(node) {
var items = {};
this._wrapNodeInternal(node, items, null, null);
return items;
},
_wrapNodeInternal: function BSS__wrapNodeInternal(node, items, parentGUID, index) {
let GUID = this._bms.getItemGUID(node.itemId);
let item = {parentGUID: parentGUID,
index: index};
if (node.type == node.RESULT_TYPE_FOLDER) {
if (this._ls.isLivemark(node.itemId)) {
item.type = "livemark";
let siteURI = this._ls.getSiteURI(node.itemId);
let feedURI = this._ls.getFeedURI(node.itemId);
item.siteURI = siteURI? siteURI.spec : "";
item.feedURI = feedURI? feedURI.spec : "";
} else {
item.type = "folder";
node.QueryInterface(Ci.nsINavHistoryQueryResultNode);
node.containerOpen = true;
for (var i = 0; i < node.childCount; i++) {
this._wrapNodeInternal(node.getChild(i), items, GUID, i);
}
}
item.title = node.title;
} else if (node.type == node.RESULT_TYPE_URI ||
node.type == node.RESULT_TYPE_QUERY) {
if (this._ms.hasMicrosummary(node.itemId)) {
item.type = "microsummary";
let micsum = this._ms.getMicrosummary(node.itemId);
item.generatorURI = micsum.generator.uri.spec; // breaks local generators
} else if (node.type == node.RESULT_TYPE_QUERY) {
item.type = "query";
item.title = node.title;
} else {
item.type = "bookmark";
item.title = node.title;
}
item.URI = node.uri;
item.tags = this._ts.getTagsForURI(makeURI(node.uri));
item.keyword = this._bms.getKeywordForBookmark(node.itemId);
} else if (node.type == node.RESULT_TYPE_SEPARATOR) {
item.type = "separator";
} else {
this._log.warn("Warning: unknown item type, cannot serialize: " + node.type);
return;
}
items[GUID] = item;
},
_getWrappedBookmarks: function BSS__getWrappedBookmarks(folder) {
return this._wrapNode(this._getFolderNodes(folder));
},
_resetGUIDsInt: function BSS__resetGUIDsInt(node) {
if (this._ans.itemHasAnnotation(node.itemId, "placesInternal/GUID"))
this._ans.removeItemAnnotation(node.itemId, "placesInternal/GUID");
if (node.type == node.RESULT_TYPE_FOLDER &&
!this._ls.isLivemark(node.itemId)) {
node.QueryInterface(Ci.nsINavHistoryQueryResultNode);
node.containerOpen = true;
for (var i = 0; i < node.childCount; i++) {
this._resetGUIDsInt(node.getChild(i));
}
}
},
_createCommand: function BStore__createCommand(command) {
let newId;
let parentId = this._bms.getItemIdForGUID(command.data.parentGUID);
if (parentId < 0) {
this._log.warn("Creating node with unknown parent -> reparenting to root");
parentId = this._bms.bookmarksMenuFolder;
}
switch (command.data.type) {
case "query":
case "bookmark":
case "microsummary":
this._log.info(" -> creating bookmark \"" + command.data.title + "\"");
let URI = makeURI(command.data.URI);
newId = this._bms.insertBookmark(parentId,
URI,
command.data.index,
command.data.title);
this._ts.untagURI(URI, null);
this._ts.tagURI(URI, command.data.tags);
this._bms.setKeywordForBookmark(newId, command.data.keyword);
if (command.data.type == "microsummary") {
this._log.info(" \-> is a microsummary");
let genURI = makeURI(command.data.generatorURI);
try {
let micsum = this._ms.createMicrosummary(URI, genURI);
this._ms.setMicrosummary(newId, micsum);
}
catch(ex) { /* ignore "missing local generator" exceptions */ }
}
break;
case "folder":
this._log.info(" -> creating folder \"" + command.data.title + "\"");
newId = this._bms.createFolder(parentId,
command.data.title,
command.data.index);
break;
case "livemark":
this._log.info(" -> creating livemark \"" + command.data.title + "\"");
newId = this._ls.createLivemark(parentId,
command.data.title,
makeURI(command.data.siteURI),
makeURI(command.data.feedURI),
command.data.index);
break;
case "separator":
this._log.info(" -> creating separator");
newId = this._bms.insertSeparator(parentId, command.data.index);
break;
default:
this._log.error("_createCommand: Unknown item type: " + command.data.type);
break;
}
if (newId)
this._bms.setItemGUID(newId, command.GUID);
},
_removeCommand: function BStore__removeCommand(command) {
var itemId = this._bms.getItemIdForGUID(command.GUID);
if (itemId < 0) {
this._log.warn("Attempted to remove item " + command.GUID +
", but it does not exist. Skipping.");
return;
}
var type = this._bms.getItemType(itemId);
switch (type) {
case this._bms.TYPE_BOOKMARK:
this._log.info(" -> removing bookmark " + command.GUID);
this._bms.removeItem(itemId);
break;
case this._bms.TYPE_FOLDER:
this._log.info(" -> removing folder " + command.GUID);
this._bms.removeFolder(itemId);
break;
case this._bms.TYPE_SEPARATOR:
this._log.info(" -> removing separator " + command.GUID);
this._bms.removeItem(itemId);
break;
default:
this._log.error("removeCommand: Unknown item type: " + type);
break;
}
},
_editCommand: function BStore__editCommand(command) {
var itemId = this._bms.getItemIdForGUID(command.GUID);
if (itemId < 0) {
this._log.warn("Item for GUID " + command.GUID + " not found. Skipping.");
return;
}
for (let key in command.data) {
switch (key) {
case "GUID":
var existing = this._bms.getItemIdForGUID(command.data.GUID);
if (existing < 0)
this._bms.setItemGUID(itemId, command.data.GUID);
else
this._log.warn("Can't change GUID " + command.GUID +
" to " + command.data.GUID + ": GUID already exists.");
break;
case "title":
this._bms.setItemTitle(itemId, command.data.title);
break;
case "URI":
this._bms.changeBookmarkURI(itemId, makeURI(command.data.URI));
break;
case "index":
this._bms.moveItem(itemId, this._bms.getFolderIdForItem(itemId),
command.data.index);
break;
case "parentGUID":
let index = -1;
if (command.data.index && command.data.index >= 0)
index = command.data.index;
this._bms.moveItem(
itemId, this._bms.getItemIdForGUID(command.data.parentGUID), index);
break;
case "tags":
let tagsURI = this._bms.getBookmarkURI(itemId);
this._ts.untagURI(URI, null);
this._ts.tagURI(tagsURI, command.data.tags);
break;
case "keyword":
this._bms.setKeywordForBookmark(itemId, command.data.keyword);
break;
case "generatorURI":
let micsumURI = makeURI(this._bms.getBookmarkURI(itemId));
let genURI = makeURI(command.data.generatorURI);
let micsum = this._ms.createMicrosummary(micsumURI, genURI);
this._ms.setMicrosummary(itemId, micsum);
break;
case "siteURI":
this._ls.setSiteURI(itemId, makeURI(command.data.siteURI));
break;
case "feedURI":
this._ls.setFeedURI(itemId, makeURI(command.data.feedURI));
break;
default:
this._log.warn("Can't change item property: " + key);
break;
}
}
},
wrap: function BStore_wrap() {
let filed = this._getWrappedBookmarks(this._bms.bookmarksMenuFolder);
let toolbar = this._getWrappedBookmarks(this._bms.toolbarFolder);
let unfiled = this._getWrappedBookmarks(this._bms.unfiledBookmarksFolder);
for (let guid in unfiled) {
if (!(guid in filed))
filed[guid] = unfiled[guid];
}
for (let guid in toolbar) {
if (!(guid in filed))
filed[guid] = toolbar[guid];
}
return filed; // (combined)
},
resetGUIDs: function BStore_resetGUIDs() {
this._resetGUIDsInt(this._getFolderNodes(this._bms.bookmarksMenuFolder));
this._resetGUIDsInt(this._getFolderNodes(this._bms.toolbarFolder));
this._resetGUIDsInt(this._getFolderNodes(this._bms.unfiledBookmarksFolder));
},
applyCommands: function BStore_applyCommands(commandList) {
for (var i = 0; i < commandList.length; i++) {
var command = commandList[i];
this._log.debug("Processing command: " + uneval(command));
switch (command["action"]) {
case "create":
this._createCommand(command);
break;
case "remove":
this._removeCommand(command);
break;
case "edit":
this._editCommand(command);
break;
default:
this._log.error("unknown action in command: " + command["action"]);
break;
}
}
}
};
BookmarksStore.prototype.__proto__ = new Store();
function addModuleAlias(alias, extensionId) {
let ioSvc = Cc["@mozilla.org/network/io-service;1"]
.getService(Ci.nsIIOService);
let resProt = ioSvc.getProtocolHandler("resource")
.QueryInterface(Ci.nsIResProtocolHandler);
if (!resProt.hasSubstitution(alias)) {
let extMgr = Cc["@mozilla.org/extensions/manager;1"]
.getService(Ci.nsIExtensionManager);
let loc = extMgr.getInstallLocation(extensionId);
let extD = loc.getItemLocation(extensionId);
extD.append("modules");
resProt.setSubstitution(alias, ioSvc.newFileURI(extD));
}
}

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Bookmarks Sync.
*
* The Initial Developer of the Original Code is Mozilla.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Dan Mills <thunder@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
const EXPORTED_SYMBOLS = ['SyncCore', 'BookmarksSyncCore'];
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
const Cu = Components.utils;
addModuleAlias("weave", "{340c2bbc-ce74-4362-90b5-7c26312808ef}");
Cu.import("resource://weave/log4moz.js");
Cu.import("resource://weave/constants.js");
Cu.import("resource://weave/util.js");
Function.prototype.async = generatorAsync;
/*
* SyncCore objects
* Sync cores deal with diff creation and conflict resolution.
* Tree data structures where all nodes have GUIDs only need to be
* subclassed for each data type to implement commandLike and
* itemExists.
*/
function SyncCore() {
this._init();
}
SyncCore.prototype = {
_logName: "Sync",
_init: function SC__init() {
this._log = Log4Moz.Service.getLogger("Service." + this._logName);
},
// FIXME: this won't work for deep objects, or objects with optional properties
_getEdits: function SC__getEdits(a, b) {
let ret = {numProps: 0, props: {}};
for (prop in a) {
if (!deepEquals(a[prop], b[prop])) {
ret.numProps++;
ret.props[prop] = b[prop];
}
}
return ret;
},
_nodeParents: function SC__nodeParents(GUID, tree) {
return this._nodeParentsInt(GUID, tree, []);
},
_nodeParentsInt: function SC__nodeParentsInt(GUID, tree, parents) {
if (!tree[GUID] || !tree[GUID].parentGUID)
return parents;
parents.push(tree[GUID].parentGUID);
return this._nodeParentsInt(tree[GUID].parentGUID, tree, parents);
},
_detectUpdates: function SC__detectUpdates(onComplete, a, b) {
let [self, cont] = yield;
let listener = new EventListener(cont);
let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
let cmds = [];
try {
for (let GUID in a) {
timer.initWithCallback(listener, 0, timer.TYPE_ONE_SHOT);
yield; // Yield to main loop
if (GUID in b) {
let edits = this._getEdits(a[GUID], b[GUID]);
if (edits.numProps == 0) // no changes - skip
continue;
let parents = this._nodeParents(GUID, b);
cmds.push({action: "edit", GUID: GUID,
depth: parents.length, parents: parents,
data: edits.props});
} else {
let parents = this._nodeParents(GUID, a); // ???
cmds.push({action: "remove", GUID: GUID,
depth: parents.length, parents: parents});
}
}
for (let GUID in b) {
timer.initWithCallback(listener, 0, timer.TYPE_ONE_SHOT);
yield; // Yield to main loop
if (GUID in a)
continue;
let parents = this._nodeParents(GUID, b);
cmds.push({action: "create", GUID: GUID,
depth: parents.length, parents: parents,
data: b[GUID]});
}
cmds.sort(function(a, b) {
if (a.depth > b.depth)
return 1;
if (a.depth < b.depth)
return -1;
if (a.index > b.index)
return -1;
if (a.index < b.index)
return 1;
return 0; // should never happen, but not a big deal if it does
});
} catch (e) {
this._log.error("Exception caught: " + e.message);
} finally {
timer = null;
generatorDone(this, self, onComplete, cmds);
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
},
_commandLike: function SC__commandLike(a, b) {
this._log.error("commandLike needs to be subclassed");
// Check that neither command is null, and verify that the GUIDs
// are different (otherwise we need to check for edits)
if (!a || !b || a.GUID == b.GUID)
return false;
// Check that all other properties are the same
// FIXME: could be optimized...
for (let key in a) {
if (key != "GUID" && !deepEquals(a[key], b[key]))
return false;
}
for (let key in b) {
if (key != "GUID" && !deepEquals(a[key], b[key]))
return false;
}
return true;
},
// When we change the GUID of a local item (because we detect it as
// being the same item as a remote one), we need to fix any other
// local items that have it as their parent
_fixParents: function SC__fixParents(list, oldGUID, newGUID) {
for (let i = 0; i < list.length; i++) {
if (!list[i])
continue;
if (list[i].data.parentGUID == oldGUID)
list[i].data.parentGUID = newGUID;
for (let j = 0; j < list[i].parents.length; j++) {
if (list[i].parents[j] == oldGUID)
list[i].parents[j] = newGUID;
}
}
},
_conflicts: function SC__conflicts(a, b) {
if ((a.GUID == b.GUID) && !deepEquals(a, b))
return true;
return false;
},
_getPropagations: function SC__getPropagations(commands, conflicts, propagations) {
for (let i = 0; i < commands.length; i++) {
let alsoConflicts = function(elt) {
return (elt.action == "create" || elt.action == "remove") &&
commands[i].parents.indexOf(elt.GUID) >= 0;
};
if (conflicts.some(alsoConflicts))
conflicts.push(commands[i]);
let cmdConflicts = function(elt) {
return elt.GUID == commands[i].GUID;
};
if (!conflicts.some(cmdConflicts))
propagations.push(commands[i]);
}
},
_itemExists: function SC__itemExists(GUID) {
this._log.error("itemExists needs to be subclassed");
return false;
},
_reconcile: function SC__reconcile(onComplete, listA, listB) {
let [self, cont] = yield;
let listener = new EventListener(cont);
let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
let propagations = [[], []];
let conflicts = [[], []];
let ret = {propagations: propagations, conflicts: conflicts};
this._log.debug("Reconciling " + listA.length +
" against " + listB.length + "commands");
try {
let guidChanges = [];
for (let i = 0; i < listA.length; i++) {
let a = listA[i];
timer.initWithCallback(listener, 0, timer.TYPE_ONE_SHOT);
yield; // Yield to main loop
//this._log.debug("comparing " + i + ", listB length: " + listB.length);
let skip = false;
listB = listB.filter(function(b) {
// fast path for when we already found a matching command
if (skip)
return true;
if (deepEquals(a, b)) {
delete listA[i]; // a
skip = true;
return false; // b
} else if (this._commandLike(a, b)) {
this._fixParents(listA, a.GUID, b.GUID);
guidChanges.push({action: "edit",
GUID: a.GUID,
data: {GUID: b.GUID}});
delete listA[i]; // a
skip = true;
return false; // b, but we add it back from guidChanges
}
// watch out for create commands with GUIDs that already exist
if (b.action == "create" && this._itemExists(b.GUID)) {
this._log.error("Remote command has GUID that already exists " +
"locally. Dropping command.");
return false; // delete b
}
return true; // keep b
}, this);
}
listA = listA.filter(function(elt) { return elt });
listB = listB.concat(guidChanges);
for (let i = 0; i < listA.length; i++) {
for (let j = 0; j < listB.length; j++) {
timer.initWithCallback(listener, 0, timer.TYPE_ONE_SHOT);
yield; // Yield to main loop
if (this._conflicts(listA[i], listB[j]) ||
this._conflicts(listB[j], listA[i])) {
if (!conflicts[0].some(
function(elt) { return elt.GUID == listA[i].GUID }))
conflicts[0].push(listA[i]);
if (!conflicts[1].some(
function(elt) { return elt.GUID == listB[j].GUID }))
conflicts[1].push(listB[j]);
}
}
}
this._getPropagations(listA, conflicts[0], propagations[1]);
timer.initWithCallback(listener, 0, timer.TYPE_ONE_SHOT);
yield; // Yield to main loop
this._getPropagations(listB, conflicts[1], propagations[0]);
ret = {propagations: propagations, conflicts: conflicts};
} catch (e) {
this._log.error("Exception caught: " + e.message);
} finally {
timer = null;
generatorDone(this, self, onComplete, ret);
yield; // onComplete is responsible for closing the generator
}
this._log.warn("generator not properly closed");
},
// Public methods
detectUpdates: function SC_detectUpdates(onComplete, a, b) {
return this._detectUpdates.async(this, onComplete, a, b);
},
reconcile: function SC_reconcile(onComplete, listA, listB) {
return this._reconcile.async(this, onComplete, listA, listB);
}
};
function BookmarksSyncCore() {
this._init();
}
BookmarksSyncCore.prototype = {
_logName: "BMSync",
__bms: null,
get _bms() {
if (!this.__bms)
this.__bms = Cc["@mozilla.org/browser/nav-bookmarks-service;1"].
getService(Ci.nsINavBookmarksService);
return this.__bms;
},
// NOTE: Needs to be subclassed
_itemExists: function BSC__itemExists(GUID) {
return this._bms.getItemIdForGUID(GUID) >= 0;
},
_commandLike: function BSC_commandLike(a, b) {
// Check that neither command is null, that their actions, types,
// and parents are the same, and that they don't have the same
// GUID.
// Items with the same GUID do not qualify for 'likeness' because
// we already consider them to be the same object, and therefore
// we need to process any edits.
// The parent GUID check works because reconcile() fixes up the
// parent GUIDs as it runs, and the command list is sorted by
// depth
if (!a || !b ||
a.action != b.action ||
a.data.type != b.data.type ||
a.data.parentGUID != b.data.parentGUID ||
a.GUID == b.GUID)
return false;
// Bookmarks are allowed to be in a different index as long as
// they are in the same folder. Folders and separators must be at
// the same index to qualify for 'likeness'.
switch (a.data.type) {
case "bookmark":
if (a.data.URI == b.data.URI &&
a.data.title == b.data.title)
return true;
return false;
case "query":
if (a.data.URI == b.data.URI &&
a.data.title == b.data.title)
return true;
return false;
case "microsummary":
if (a.data.URI == b.data.URI &&
a.data.generatorURI == b.data.generatorURI)
return true;
return false;
case "folder":
if (a.index == b.index &&
a.data.title == b.data.title)
return true;
return false;
case "livemark":
if (a.data.title == b.data.title &&
a.data.siteURI == b.data.siteURI &&
a.data.feedURI == b.data.feedURI)
return true;
return false;
case "separator":
if (a.index == b.index)
return true;
return false;
default:
this._log.error("commandLike: Unknown item type: " + uneval(a));
return false;
}
}
};
BookmarksSyncCore.prototype.__proto__ = new SyncCore();
function addModuleAlias(alias, extensionId) {
let ioSvc = Cc["@mozilla.org/network/io-service;1"]
.getService(Ci.nsIIOService);
let resProt = ioSvc.getProtocolHandler("resource")
.QueryInterface(Ci.nsIResProtocolHandler);
if (!resProt.hasSubstitution(alias)) {
let extMgr = Cc["@mozilla.org/extensions/manager;1"]
.getService(Ci.nsIExtensionManager);
let loc = extMgr.getInstallLocation(extensionId);
let extD = loc.getItemLocation(extensionId);
extD.append("modules");
resProt.setSubstitution(alias, ioSvc.newFileURI(extD));
}
}

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Bookmarks Sync.
*
* The Initial Developer of the Original Code is Mozilla.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Dan Mills <thunder@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
const EXPORTED_SYMBOLS = ['deepEquals', 'makeFile', 'makeURI', 'xpath',
'bind2', 'generatorAsync', 'generatorDone', 'EventListener'];
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
const Cu = Components.utils;
addModuleAlias("weave", "{340c2bbc-ce74-4362-90b5-7c26312808ef}");
Cu.import("resource://weave/constants.js");
Cu.import("resource://weave/log4moz.js");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
/*
* Utility functions
*/
function deepEquals(a, b) {
if (!a && !b)
return true;
if (!a || !b)
return false;
if (typeof(a) != "object" && typeof(b) != "object")
return a == b;
if (typeof(a) != "object" || typeof(b) != "object")
return false;
for (let key in a) {
if (typeof(a[key]) == "object") {
if (!typeof(b[key]) == "object")
return false;
if (!deepEquals(a[key], b[key]))
return false;
} else {
if (a[key] != b[key])
return false;
}
}
return true;
}
function makeFile(path) {
var file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile);
file.initWithPath(path);
return file;
}
function makeURI(URIString) {
if (URIString === null || URIString == "")
return null;
let ioservice = Cc["@mozilla.org/network/io-service;1"].
getService(Ci.nsIIOService);
return ioservice.newURI(URIString, null, null);
}
function xpath(xmlDoc, xpathString) {
let root = xmlDoc.ownerDocument == null ?
xmlDoc.documentElement : xmlDoc.ownerDocument.documentElement
let nsResolver = xmlDoc.createNSResolver(root);
return xmlDoc.evaluate(xpathString, xmlDoc, nsResolver,
Ci.nsIDOMXPathResult.ANY_TYPE, null);
}
function bind2(object, method) {
return function innerBind() { return method.apply(object, arguments); }
}
// Meant to be used like this in code that imports this file:
//
// Function.prototype.async = generatorAsync;
//
// So that you can do:
//
// gen = fooGen.async(...);
// ret = yield;
//
// where fooGen is a generator function, and gen is the running generator.
// ret is whatever the generator 'returns' via generatorDone().
function generatorAsync(self, extra_args) {
try {
let args = Array.prototype.slice.call(arguments, 1);
let gen = this.apply(self, args);
gen.next(); // must initialize before sending
gen.send([gen, function(data) {continueGenerator(gen, data);}]);
return gen;
} catch (e) {
if (e instanceof StopIteration) {
dump("async warning: generator stopped unexpectedly");
return null;
} else {
dump("Exception caught: " + e.message);
}
}
}
function continueGenerator(generator, data) {
try { generator.send(data); }
catch (e) {
if (e instanceof StopIteration)
dump("continueGenerator warning: generator stopped unexpectedly");
else
dump("Exception caught: " + e.message);
}
}
// generators created using Function.async can't simply call the
// callback with the return value, since that would cause the calling
// function to end up running (after the yield) from inside the
// generator. Instead, generators can call this method which sets up
// a timer to call the callback from a timer (and cleans up the timer
// to avoid leaks). It also closes generators after the timeout, to
// keep things clean.
function generatorDone(object, generator, callback, retval) {
if (object._timer)
throw "Called generatorDone when there is a timer already set."
let cb = bind2(object, function(event) {
generator.close();
generator = null;
object._timer = null;
if (callback)
callback(retval);
});
object._timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
object._timer.initWithCallback(new EventListener(cb),
0, object._timer.TYPE_ONE_SHOT);
}
/*
* Event listener object
* Used to handle XMLHttpRequest and nsITimer callbacks
*/
function EventListener(handler, eventName) {
this._handler = handler;
this._eventName = eventName;
this._log = Log4Moz.Service.getLogger("Service.EventHandler");
}
EventListener.prototype = {
QueryInterface: XPCOMUtils.generateQI([Ci.nsITimerCallback, Ci.nsISupports]),
// DOM event listener
handleEvent: function EL_handleEvent(event) {
this._log.debug("Handling event " + this._eventName);
this._handler(event);
},
// nsITimerCallback
notify: function EL_notify(timer) {
this._log.trace("Timer fired");
this._handler(timer);
}
};
function addModuleAlias(alias, extensionId) {
let ioSvc = Cc["@mozilla.org/network/io-service;1"]
.getService(Ci.nsIIOService);
let resProt = ioSvc.getProtocolHandler("resource")
.QueryInterface(Ci.nsIResProtocolHandler);
if (!resProt.hasSubstitution(alias)) {
let extMgr = Cc["@mozilla.org/extensions/manager;1"]
.getService(Ci.nsIExtensionManager);
let loc = extMgr.getInstallLocation(extensionId);
let extD = loc.getItemLocation(extensionId);
extD.append("modules");
resProt.setSubstitution(alias, ioSvc.newFileURI(extD));
}
}

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services/sync/modules/weave.js
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