Big update:

* Move all core functions from mains.js to background.js
    * Use message interface for IPCs between main.js, background.js and popup.js
    * Add popup interface :
      	  * safest method to compute masterkey
	  * Direct access to our own gPass server with auto URL and username fill
    * Add some specific menus :
      	  * Access to gPass settings
	  * Allow to disable extension
    * Update gPass icon when a password field has focus and gPass is ready to work
This commit is contained in:
2020-01-18 15:20:13 +01:00
parent 81385fbf88
commit 898e0b9e42
22 changed files with 2558 additions and 483 deletions

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../chrome_addon/lib/

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/*
Copyright (C) 2013-2020 Grégory Soutadé
This file is part of gPass.
gPass 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.
gPass 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 gPass. If not, see <http://www.gnu.org/licenses/>.
*/
var gpass_enabled = true;
function _notification(message, data)
{
if (message !== data)
message += data;
options = {
type: "basic",
title : "gPass",
message : message,
iconUrl:browser.extension.getURL("icons/gpass_icon_64.png")
};
browser.notifications.create(options).then(
function created(notification_id)
{
window.setTimeout(function() {
browser.notifications.clear(notification_id);
}, 2000);
}
);
}
function _add_name(logins, name)
{
for(var i=0; i<logins.length; i++)
if (logins[i] == name) return ;
logins.push(name);
}
function try_get_name(fields, type_filters, match)
{
var user = null;
var all_logins = new Array();
for (var i=0; i<fields.length; i++)
{
var field = fields[i];
for (var a=0; a<type_filters.length; a++)
{
if ((match && field.getAttribute("type") == type_filters[a]) ||
(!match && field.getAttribute("type") != type_filters[a]))
{
if (field.hasAttribute("name") && field.value != "")
{
name = field.getAttribute("name");
// Subset of common user field
if (name == "user") user = field.value;
else if (name == "usr") user = field.value;
else if (name == "username") user = field.value;
else if (name == "login") user = field.value;
_add_name(all_logins, field.value);
}
}
}
}
if (user != null)
return new Array(user);
else
return all_logins;
}
function on_focus(e)
{
if (gpass_enabled)
{
parameters = {
type:"update_icon",
icon_id:GPASS_ICON.ACTIVATED,
};
browser.runtime.sendMessage(parameters, {});
}
}
function on_blur(e)
{
if (gpass_enabled)
{
parameters = {
type:"update_icon",
icon_id:GPASS_ICON.NORMAL,
};
browser.runtime.sendMessage(parameters, {});
}
}
function on_sumbit(e)
{
var form = this;
var fields = form.getElementsByTagName("input");
var domain = form.ownerDocument.baseURI;
var password_computed = false;
debug("on_submit");
type_filters = new Array();
// Get all <input type="text"> && <input type="email">
type_filters.push("text");
type_filters.push("email");
logins = try_get_name(fields, type_filters, true);
// Get all other fields except text, email and password
type_filters.push("password");
all_logins = try_get_name(fields, type_filters, false);
if (!logins.length)
logins = all_logins;
e.preventDefault();
// Look for <input type="password" value="@@...">
for (var i=0; i<fields.length; i++)
{
var field = fields[i];
if (field.getAttribute("type") == "password")
{
password = field.value;
if (!password.startsWith("@@") && !password.startsWith("@_"))
continue;
// Remove current value to limit master key stealing
field.value = "";
password_computed = true;
do_submit = !password.startsWith("@_");
mkey = password.substring(2);
parameters = {
type:"password",
logins:logins,
domain:domain,
mkey:mkey,
options:{field_id:i}
};
browser.runtime.sendMessage(parameters, {},
function (response) {
debug(response);
var field = fields[response.options.field_id];
switch(response.value)
{
case SERVER.OK:
set_password(form, field, response.password, do_submit)
notify("Password successfully replaced", "");
break;
case SERVER.FAILED:
if (logins.length != all_logins.length)
{
parameters[logins] = all_logins;
browser.runtime.sendMessage(parameters);
}
break;
case SERVER.RESTART_REQUEST:
i = -1; // Restart loop
break;
}
}
);
}
}
if (!password_computed)
{
debug("No password computed");
form.submit();
return true;
}
return false;
}
function set_password(form, field, password, do_submit)
{
field.value = password;
// Remove gPass event listener and submit again with clear password
unblock_all_forms();
if (do_submit)
{
// Propagate change
change_cb = field.onchange;
if (change_cb)
change_cb();
// Try to type "enter"
var evt = new KeyboardEvent("keydown");
delete evt.which;
evt.which = 13;
field.dispatchEvent(evt);
// Submit form
form.submit();
}
}
var managed_forms = new Array();
function block_all_forms(doc, do_block)
{
var first_time = (managed_forms.length == 0);
var cur_focused_element = document.activeElement;
debug("block all forms");
gpass_enabled = do_block;
// If there is a password in the form, add a "submit" listener
for(var i=0; i<doc.forms.length; i++)
{
var form = doc.forms[i];
var fields = form.getElementsByTagName("input");
for (var a=0; a<fields.length; a++)
{
var field = fields[a];
if (field.getAttribute("type") == "password")
{
if (do_block)
{
block_url(form.action);
old_cb = form.onsubmit;
if (old_cb)
form.removeEventListener("submit", old_cb);
form.addEventListener("submit", on_sumbit);
if (old_cb)
form.addEventListener("submit", old_cb);
field.addEventListener("focus", on_focus);
field.addEventListener("blur", on_blur);
if (cur_focused_element === field)
on_focus(null);
}
if (first_time)
managed_forms.push(form);
break;
}
}
}
/* Request can be sent to another URL... */
if (managed_forms.length && do_block)
block_url("<all_urls>");
}
function unblock_all_forms()
{
debug("unblock all forms");
on_blur(null);
for(var i=0; i<managed_forms.length; i++)
{
var form = managed_forms[i];
form.removeEventListener("submit", on_sumbit);
unblock_url(form.action);
var fields = form.getElementsByTagName("input");
for (var a=0; a<fields.length; a++)
{
var field = fields[a];
if (field.getAttribute("type") == "password")
{
field.removeEventListener("focus", on_focus);
field.removeEventListener("blur", on_blur);
break;
}
}
}
if (managed_forms.length)
unblock_url("<all_urls>");
gpass_enabled = false;
}
browser.runtime.onMessage.addListener(
function(request, sender, sendResponse) {
if (request.type == "getUsername")
{
debug("getUsername");
if (managed_forms.length == 1)
{
fields = managed_forms[0].getElementsByTagName("input");
type_filters = new Array();
// Get all <input type="text"> && <input type="email">
type_filters.push("text");
type_filters.push("email");
logins = try_get_name(fields, type_filters, true);
if (logins.length == 1)
sendResponse(logins[0]);
else
sendResponse("");
}
else
sendResponse("");
}
else if (request.type == "setPassword")
{
debug("setPassword");
var response = "";
if (managed_forms.length == 1)
{
fields = managed_forms[0].getElementsByTagName("input");
password_field = null;
for (a=0; a<fields.length; a++)
{
field = fields[a];
if (field.getAttribute("type") == "password")
{
if (password_field == null)
password_field = field;
else
{
// More than one password field : abort
password_field = null;
break;
}
}
}
if (password_field)
{
set_password(managed_forms[0], password_field,
request.password, request.submit);
response = "ok";
}
}
sendResponse(response);
return true;
}
else if (request.type == "blockForms")
{
block_all_forms(document, true);
}
else if (request.type == "unblockForms")
{
unblock_all_forms();
}
});
function document_loaded()
{
parameters = {
"type": "is_gpass_enabled",
};
browser.runtime.sendMessage(parameters, {},
function (response) {
if (response)
block_all_forms(document, response.enabled);
});
}
document_loaded();
console.log("Welcome to gPass web extension v0.9 !");
console.log("Privacy Policy can be found at http://indefero.soutade.fr/p/gpass/source/tree/master/PrivacyPolicy.md");
console.log("");

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/*
Copyright (C) 2013-2020 Grégory Soutadé
This file is part of gPass.
gPass 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.
gPass 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 gPass. If not, see <http://www.gnu.org/licenses/>.
*/
var DEBUG = false;
SERVER = {OK : 0, FAILED : 1, RESTART_REQUEST : 2};
GPASS_ICON = {NORMAL:0, DISABLED:1, ACTIVATED:2};
var default_preferences = {"pbkdf2_level": 1000,
"account_url": "https://gpass-demo.soutade.fr/demo",
"crypto_v1_compatible": true};
var browser = browser || chrome;
var crypto = crypto || window.crypto;
function notify(text, data)
{
browser.runtime.sendMessage({type: "notification", options:{"message":text, "data":data}});
}
function block_url(url)
{
debug("Block URL " + url);
browser.runtime.sendMessage({type: "block_url", options:{"url":url}});
}
function unblock_url(url)
{
debug("Unblock URL " + url);
browser.runtime.sendMessage({type: "unblock_url", options:{"url":url}});
}
// https://stackoverflow.com/questions/6965107/converting-between-strings-and-arraybuffers
function ab2str(buf) {
return String.fromCharCode.apply(null, new Uint8Array(buf));
}
// https://developers.google.com/web/updates/2012/06/How-to-convert-ArrayBuffer-to-and-from-String
function str2ab2(str) {
var chars = []
for (var i=0, strLen=str.length; i < strLen; i++) {
chars.push(str.charCodeAt(i));
}
return new Uint8Array(chars);
}
function str2ab(str) {
var buf = new ArrayBuffer(str.length);
// var buf = new ArrayBuffer(str.length*2); // 2 bytes for each char
var bufView = new Uint8Array(buf);
for (var i=0, strLen=str.length; i < strLen; i++) {
bufView[i] = str.charCodeAt(i);
}
return bufView;
}
function crypto_pbkdf2(mkey, salt, level)
{
AESCBC = {
name: "AES-CBC",
length: 256,
}
var key = str2ab(mkey);
return crypto.subtle.importKey("raw", key, {name: "PBKDF2"}, false, ["deriveBits", "deriveKey"])
.then(function(key){
//sha-256
return crypto.subtle.deriveKey({
name: "PBKDF2",
salt: str2ab(salt),
iterations: level,
hash: "SHA-256",
}, key, AESCBC, false, ["encrypt", "decrypt", "unwrapKey", "wrapKey"])
.then(function(key) {
return key;
})
.catch(function(err){
console.log("Error derive key " + err);
});
})
.catch(function(err) {
console.log("Error import key" + err);
});
}
function simple_pbkdf2(mkey, salt, level)
{
AESCBC = {
name: "AES-CBC",
length: 256,
}
var key = str2ab(mkey);
return crypto.subtle.importKey("raw", key, {name: "PBKDF2"}, false, ["deriveBits", "deriveKey"])
.then(function(key){
//sha-256
return crypto.subtle.deriveKey({
name: "PBKDF2",
salt: str2ab(salt),
iterations: level,
hash: "SHA-256",
}, key, AESCBC, true, ["unwrapKey", "wrapKey"])
.then(function(key) {
return crypto.subtle.exportKey("raw", key)
.then(function (key) {
return ab2str(key);
});
})
.catch(function(err){
console.log("Error derive key " + err);
});
})
.catch(function(err) {
console.log("Error import key" + err);
});
}
function _encrypt(mkey, iv, data)
{
while ((data.length % 16))
data += "\0";
data = str2ab(data);
promise = mkey.then(function(mkey){
return crypto.subtle.encrypt({
name: "AES-CBC",
iv: iv
}, mkey, data)})
.then(function(encrypted) {
return ab2str(encrypted);
})
.catch(function(encryption) {
console.log("Encryption rejected " + encryption);
});
return promise;
}
async function _decrypt(mkey, iv, data)
{
while ((data.length % 16))
data += "\0";
nulliv = new Uint8Array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
pkcs7_padding = new Uint8Array([16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16]);
pkcs7_padding = await _encrypt(mkey, nulliv, ab2str(pkcs7_padding));
data = str2ab(data + pkcs7_padding);
nulliv = new Uint8Array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
promise = mkey.then(function(mkey){
return crypto.subtle.decrypt({
name: "AES-CBC",
iv: iv
}, mkey, data)})
.then(function(decrypted) {
return ab2str(decrypted);
})
.catch(function(decryption) {
console.log("Decryption rejected " + decryption);
});
return promise;
}
async function encrypt_ecb(mkey, data)
{
var result = "";
debug("Encrypt ECB " + data);
nulliv = new Uint8Array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
while (data.length > 16)
{
res = await _encrypt(mkey, nulliv, data.slice(0, 16));
// Remove PKCS7 padding
result += res.slice(0, 16);
data = data.slice(16);
}
res = await _encrypt(mkey, nulliv, data);
result += res.slice(0, 16);
return result;
}
async function decrypt_ecb(mkey, data)
{
var result = "";
debug("Decrypt ECB " + data);
nulliv = new Uint8Array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
while (data.length > 16)
{
res = await _decrypt(mkey, nulliv, data.slice(0, 16));
// Remove PKCS7 padding
result += res.slice(0, 16);
data = data.slice(16);
}
res = await _decrypt(mkey, nulliv, data);
result += res.slice(0, 16);
return result;
}
async function encrypt_cbc(mkey, iv, data)
{
debug("Encrypt CBC " + data);
var result = await _encrypt(mkey, str2ab(iv), data);
// Remove PKCS7 padding
return result.slice(0, result.length-16);
}
async function decrypt_cbc(mkey, iv, data)
{
debug("Decrypt CBC " + data);
var result = await _decrypt(mkey, str2ab(iv), data);
// Remove PKCS7 padding
return result.slice(0, result.length-16);
}
async function digest(data)
{
return crypto.subtle.digest("SHA-256", str2ab(data)).then(function (hash) {
return ab2str(hash);
});
}
function wildcard_domain(domain)
{
var parts = domain.split(".");
// Standard root domain (zzz.xxx.com) or more
if (parts.length > 2)
{
res = "*.";
for (i=1; i<parts.length; i++)
res += parts[i] + ".";
return res.substr(0, res.length-1);
}
// Simple xxx.com
else if (parts.length == 2)
return "*." + domain;
return "";
}
// http://stackoverflow.com/questions/3745666/how-to-convert-from-hex-to-ascii-in-javascript
function hex2a(hex) {
var str = '';
for (var i = 0; i < hex.length; i += 2)
str += String.fromCharCode(parseInt(hex.substr(i, 2), 16));
return str;
}
function a2hex(_str_) {
var hex = '';
for (var i = 0; i < _str_.length; i++)
{
var c = _str_.charCodeAt(i).toString(16);
if (c.length == 1) c = "0" + c;
hex += c;
}
return hex;
}
function debug(s)
{
if (DEBUG)
console.log(s);
}

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// parseUri 1.2.2
// (c) Steven Levithan <stevenlevithan.com>
// MIT License
parseURI = {
parseUri : function (str) {
var o = {
strictMode: false,
key: ["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"],
q: {
name: "queryKey",
parser: /(?:^|&)([^&=]*)=?([^&]*)/g
},
parser: {
strict: /^(?:([^:\/?#]+):)?(?:\/\/((?:(([^:@]*)(?::([^:@]*))?)?@)?([^:\/?#]*)(?::(\d*))?))?((((?:[^?#\/]*\/)*)([^?#]*))(?:\?([^#]*))?(?:#(.*))?)/,
loose: /^(?:(?![^:@]+:[^:@\/]*@)([^:\/?#.]+):)?(?:\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?([^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/
}},
m = o.parser[o.strictMode ? "strict" : "loose"].exec(str),
uri = {},
i = 14;
while (i--) uri[o.key[i]] = m[i] || "";
uri[o.q.name] = {};
uri[o.key[12]].replace(o.q.parser, function ($0, $1, $2) {
if ($1) uri[o.q.name][$1] = $2;
});
return uri;
}
};