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/*
* IceVault - An external password manager for firefox (XUL extension)
* Copyright © 2015 Guilhem Moulin <guilhem@fripost.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
// IceVault global namespace
var icevault = (function() {
const Cc = Components.classes,
CC = Components.Constructor,
Ci = Components.interfaces;
const UnixServerSocket = CC( "@mozilla.org/network/server-socket;1"
, "nsIServerSocket"
, "initWithFilename" ),
InputPump = CC( "@mozilla.org/network/input-stream-pump;1"
, "nsIInputStreamPump"
, "init" ),
BinaryInputStream = CC( "@mozilla.org/binaryinputstream;1"
, "nsIBinaryInputStream"
, "setInputStream" ),
ConverterOutputStream = CC( "@mozilla.org/intl/converter-output-stream;1"
, "nsIConverterOutputStream"
, "init" );
// XXX should be changeable from the preferences
let sockName = Cc["@mozilla.org/file/directory_service;1"]
.getService(Ci.nsIProperties)
.get("ProfD", Ci.nsIFile);
sockName.append("S.IceVault");
const sockPerms = parseInt("0770", 8);
const convertStringToUTF8 = Cc["@mozilla.org/intl/utf8converterservice;1"]
.getService(Ci.nsIUTF8ConverterService)
.convertStringToUTF8;
// Write the given UTF8 string to the ConverterOutputStream, then flush
var send = function(stream, msg) {
//console.log("Sending: " + msg)
try {
stream.writeString(msg + "\n");
}
finally {
stream.flush();
}
};
// Refresh the internal state: URI is set to the current tab's and the
// form state is cleared
var refreshDocument = function(state) {
let tab = Application.activeWindow.activeTab;
state.document = tab.document;
state.forms = null;
send(state.outStream, 'OK ' + JSON.stringify(tab.uri.scheme+'://'+tab.uri.hostPort));
};
// Process the command
var process = function(state, data) {
data = convertStringToUTF8(data, "UTF-8", false, true); // convert the bytes to UTF8
//console.log("Received: " + data.replace(/\n$/,''));
let command = /^\S*/.exec(data)[0];
switch (command) {
case "REFRESH":
// refresh current (active) tab
refreshDocument(state);
break;
case "GETFORMS":
// refresh the form list
let forms = [], getForms = [];
for (let i = 0; i < state.document.forms.length; i++) {
let form = state.document.forms[i], rect = form.getBoundingClientRect();
if (rect.width == 0 || rect.height == 0)
continue; // invisible form
let fields = [], getFields = [];
for (let i = 0; i < form.elements.length; i++) {
let field = form.elements[i];
if (["text","email","password"].indexOf(field.type) > -1) {
// store only these kinds of fields
let getField = { name: field.name, type: field.type, value: field.value };
if (field.maxLength > -1) getField.maxLength = field.maxLength;
fields.push(field)
getFields.push(getField)
}
}
if (fields.length) {
// keep the element objects in the state, and build an assoc
// list with the wanted field properties
forms.push(fields);
getForms.push({ method: form.method.toUpperCase(), action: form.action, fields: getFields });
}
}
state.forms = forms;
send(state.outStream, 'OK ' + JSON.stringify(getForms));
break;
case "FILL":
// fill a form with the given values (unless it's null)
try {
if (state.forms == null)
throw "Must issue a GETFORMS command first";
let formIdx = /^FILL (\d+) /.exec(data);
if (formIdx == null)
throw "Syntax error"
formIdx = formIdx[1];
let values = JSON.parse(data.replace(/^FILL \d+ /, ''));
if (formIdx < 0 || formIdx >= state.forms.length)
throw (formIdx + ": Form index out of bounds");
let form = state.forms[formIdx];
if (form.length < values.length)
throw (form.length + '<' + values.length + ": Too many values");
for (let i = 0; i < values.length; i++)
if (values[i] != null)
form[i].value = values[i]
send(state.outStream, 'OK');
}
catch (e if typeof e == "string" || e instanceof SyntaxError) {
send(state.outStream, 'ERROR ' + (typeof e == "string" ? e : e.message));
}
break;
case "QUIT":
state.inStream.close();
send(state.outStream, 'BYE');
state.outStream.close();
break;
default:
send(state.outStream, 'ERROR Invalid command: ' + command);
}
};
var serverSocketListener = {
onSocketAccepted: function(server, transport) {
// New connection: asynchronously read data on the (binary) input
// stream, and open the output stream as an UTF-8. We don't use
// ConverterInputStream as onDataAvailable's counts bytes not
// chars.
let inputStream = transport.openInputStream(0, 0, 0),
serverInput = new InputPump(inputStream, -1, -1, 0, 0, false);
outputStream = transport.openOutputStream(0, 0, 0);
let state = { inStream: BinaryInputStream(inputStream)
, outStream: ConverterOutputStream(outputStream, 'UTF-8', 0, 0x0000)
};
console.log("Connection accepted");
serverInput.asyncRead(streamListener(state), null); // spawn the listener
refreshDocument(state);
},
onStopListening: function(server, StatusCode) {
// server is dead
console.log('Server stopped listening');
},
};
var streamListener = function(state) {
return {
onStartRequest: function(request, context) {
this.data = '';
},
onDataAvailable: function(request, context, stream, offset, count) {
this.data += state.inStream.readBytes(count);
if (this.data.slice(-1) == "\n") {
// full input, process the command then clear the cache
process(state, this.data);
this.data = '';
}
},
onStopRequest: function(request, context, statusCode) {
state.inStream.close();
state.outStream.close();
}
}
};
// External interface
return {
init: function() {
let server; // share the server accross multiple browsers (windows)
if (Application.storage.has("IceVault.serverSocket"))
server = Application.storage.get("IceVault.serverSocket", null);
else {
console.log("Initializing IceVault");
try {
if (sockName.exists())
sockName.remove(false); // remove stalled socket
server = new UnixServerSocket(sockName, sockPerms, -1);
}
finally {
Application.storage.set("IceVault.serverSocket", server);
}
}
server.asyncListen(serverSocketListener);
},
clean: function() {
if (!Application.windows.length && sockName.exists()) {
// remove the socket if the last window was just closed
console.log("Removing " + sockName.path);
sockName.remove(false);
}
}
}
})();
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