/usr/share/xul-ext/greasemonkey/modules/scriptProtocol.js is in xul-ext-greasemonkey 3.8-1~deb8u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
Components.utils.import("resource://gre/modules/Services.jsm");
Components.utils.import('chrome://greasemonkey-modules/content/util.js');
var Cc = Components.classes;
var Ci = Components.interfaces;
var Cr = Components.results;
var schemeName = 'greasemonkey-script';
var gHaveDoneInit = false;
var gScope = this;
function initScriptProtocol() {
if (gHaveDoneInit) return;
gHaveDoneInit = true;
ScriptProtocol.init();
}
////////////////////////////////////////////////////////////////////////////////
function DummyChannel(aUri, aScript) {
// nsIRequest
this.loadFlags = 0;
this.loadGroup = null;
this.name = aUri.spec;
this.status = 404;
this.content = '';
// nsIChannel
this.contentCharset = 'utf-8';
this.contentLength = this.content.length;
this.contentType = 'application/javascript';
this.notificationCallbacks = null;
this.originalURI = aUri;
this.owner = null;
this.securityInfo = null;
this.URI = aUri;
}
// nsIChannel
DummyChannel.prototype.asyncOpen = function(aListener, aContext) { };
////////////////////////////////////////////////////////////////////////////////
var ScriptProtocol = {
_classDescription: 'Protocol handler for "greasemonkey-script:"',
_classID: Components.ID('20d898f3-2fb8-4b3a-b8c7-7ad6c2c48598'),
_contractID: '@mozilla.org/network/protocol;1?name=' + schemeName,
QueryInterface: XPCOMUtils.generateQI([
Ci.nsIFactory,
Ci.nsIProtocolHandler,
Ci.nsISupportsWeakReference
]),
init: function() {
try {
var registrar = Components.manager.QueryInterface(
Ci.nsIComponentRegistrar);
registrar.registerFactory(
this._classID, this._classDescription, this._contractID, this);
} catch (e) {
if ('NS_ERROR_FACTORY_EXISTS' == e.name) {
// No-op, ignore these. But why do they happen!?
} else {
dump('Error registering ScriptProtocol factory:\n' + e + '\n');
}
return;
};
},
////////////////////////////////// nsIFactory //////////////////////////////////
createInstance: function(outer, iid) {
if (outer) {
throw Cr.NS_ERROR_NO_AGGREGATION;
}
return this.QueryInterface(iid);
},
////////////////////////////// nsIProtocolHandler //////////////////////////////
scheme: schemeName,
defaultPort: -1,
protocolFlags: 0
| Ci.nsIProtocolHandler.URI_INHERITS_SECURITY_CONTEXT
| Ci.nsIProtocolHandler.URI_IS_LOCAL_RESOURCE
| Ci.nsIProtocolHandler.URI_LOADABLE_BY_ANYONE
| Ci.nsIProtocolHandler.URI_NOAUTH
| Ci.nsIProtocolHandler.URI_NON_PERSISTABLE
| Ci.nsIProtocolHandler.URI_NORELATIVE
,
allowPort: function(aPort, aScheme) {
return false;
},
newURI: function(aSpec, aCharset, aBaseUri) {
var uri = Cc['@mozilla.org/network/simple-uri;1']
.createInstance(Ci.nsIURI);
uri.spec = aSpec;
return uri;
},
newChannel: function(aUri) {
var m = aUri.spec.match(/greasemonkey-script:([-0-9a-f]+)\/(.*)/);
var dummy = new DummyChannel(aUri);
// Incomplete URI, send a 404.
if (!m) return dummy;
var script = null;
// If we're serving (e.g.) a favicon image, this request can be coming
// from the parent process!
var runtime = Cc["@mozilla.org/xre/app-info;1"]
.getService(Ci.nsIXULRuntime);
if (runtime.processType == Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT) {
var scripts = GM_util.getService().config.getMatchingScripts(
function(script) { return script.uuid == m[1]; }
);
script = scripts && scripts.length && scripts[0];
} else {
var mm = Cc["@mozilla.org/childprocessmessagemanager;1"]
.getService(Ci.nsISyncMessageSender);
var response = mm.sendSyncMessage(
'greasemonkey:scripts-for-uuid', {'uuid': m[1]});
// We expect exactly one response, listing exactly one script.
if (response.length != 1) return dummy;
if (response[0].length != 1) return dummy;
script = response[0][0];
}
// Fail fast if we couldn't find the script.
if (!script) return dummy;
for (var i = 0, resource = null; resource = script.resources[i]; i++) {
if (resource.name == m[2]) {
var uri = null;
if (resource.file_url) {
// In child scope, IPCScript gives us the URL to the file.
uri = GM_util.uriFromUrl(resource.file_url);
} else {
// In parent scope we have the raw script, with file intact.
uri = GM_util.getUriFromFile(resource.file);
}
// Get the channel for the file URI, but set its originalURI to the
// greasemonkey-script: protocol URI, to ensure it can still be loaded
// in unprivileged contexts (bug #2326).
var channel = GM_util.channelFromUri(uri);
channel.originalURI = aUri;
return channel;
}
}
// Default fall-through case, send a 404.
return dummy;
}
};
|