var password = null;
var username = null;
function error(data, stay) {
$("#status").fadeOut("slow", function() {
if (data) {
if (typeof data == 'string') {
$("#status").html('
');
console.log("error: "+data);
} else {
$("#status").html('error
'
+JSON.stringify(data)+'
');
console.log("error: "+JSON.stringify(data));
}
} else {
$("#status").html('');
console.log("error");
}
$("#status").fadeIn("slow");
if (!stay) setTimeout(start, 5000);
});
}
function notice(text) {
$("#status").fadeOut("slow", function() {
if (text) {
$("#status").html('');
console.log("notice: "+text);
} else {
$("#status").html('');
console.log("notice");
}
$("#status").fadeIn("slow");
});
}
function success(text) {
$("#status").fadeOut("slow", function() {
if (text) {
$("#status").html('');
console.log("success: "+text);
} else {
$("#status").html('');
console.log("success");
}
$("#status").fadeIn("slow");
});
}
function status(text, msg) {
$("#main").fadeOut("slow", function() {
$("#main").html(text);
success(msg);
$("#main").fadeIn("slow");
});
}
function checkuser(user) {
$("#register").submit(function(event) {
return false;
});
$.post("checknewuser.php", {user: user})
.done(function(res) {
username=JSON.parse(res);
if (!username||username.length<1) username=null;
$("#createuser").prop("disabled", !(username && password));
if (username) {
if (password) success("user is ready to be created");
else notice("user name is available, please set password");
} else notice("user name is not available");
}).fail(function(res) {
username=null;
$("#createuser").prop("disabled", !(username && password));
error(res);
});
}
function checkpwd(pwd, pwd2) {
$("#register").submit(function(event) {
return false;
});
if (pwd==pwd2) password=pwd;
else password=null;
if (!password||password.length<1) password=null;
$("#createuser").prop("disabled", !(username && password));
if (password) {
if (username) success("user is ready to be created");
else notice("password matches, please chose a valid user name");
} else notice("passwords don't match");
}
function checkpartner(user) {
$("#chat").submit(function(event) {
return false;
});
$.post("checknewuser.php", {user: user})
.done(function(res) {
if (JSON.parse(res)) {
notice("receiver does not exist");
$("#send").prop("disabled", true);
return;
}
$("#send").prop("disabled", false);
success("receiver exists");
}).fail(function(res) {
notice("cannot connect to server: "+res);
$("#send").prop("disabled", true);
});
}
function createNewUser(user, pwd) {
status("generate keys");
openpgp.generateKeyPair({
numBits: 1024,
userId: user,
passphrase: pwd
}).then(function(keyPair) {
success("keys generated");
localStorage.pubKey = keyPair.publicKeyArmored;
localStorage.privKey = keyPair.privateKeyArmored;
login();
}).catch(function(e) {
error(e);
});
}
function publicKey() {
if (typeof localStorage.pubKey == 'undefined') return null;
return openpgp.key.readArmored(localStorage.pubKey);
}
function privateKey() {
if (typeof localStorage.privKey == 'undefined') return null;
return openpgp.key.readArmored(localStorage.privKey);
}
function userid() {
if (!publicKey() ||
publicKey().keys.length < 1 ||
publicKey().keys[0].getUserIds().length < 1) return null
return publicKey().keys[0].getUserIds()[0];
}
function setreceiver(name) {
$("#recv").val(name);
checkpartner(name);
$("#msg").focus();
}
var startmsg = 0;
function get() {
$.post("get.php", {start: startmsg}).done(function(res) {
var msgs = JSON.parse(res);
if (msgs) {
msgs.forEach(function(e) {
if (startmsg"
+e["id"]
+" | "
+(new Date(1000*Number(e["time"]))).toLocaleString()
+' | '
+e["user"]
+" | "
+(msg.signatures[0].valid?"✔":"✘")
+' | '
+msg.text
+" | ");
$(".msg").emoticonize();
});
// .catch(function(e) {
// error("decryption of message failed", true);
// });
}
}).fail(function(e) {
error("get sender's key from server failed", true);
});
});
}
setTimeout(get, 10000);
}).fail(error);
}
function sendmessage(recv, txt) {
$.post("pubkey.php", {user: recv}).done(function(pk) {
var res=JSON.parse(pk);
var key=openpgp.key.readArmored(res);
if (!res||key.err) {
error("key of receiver not found", true);
return;
}
var privkey = privateKey().keys[0];
privkey.decrypt(password);
openpgp.signAndEncryptMessage(key.keys.concat(publicKey().keys), privkey, txt)
.then(function(msg) {
$.post("send.php", {user: userid(), msg: msg})
.done(function(res) {
if (JSON.parse(res)) {
$("#msg").val("");
success("message sent");
} else error("error sending message", true);
})
.fail(error);
})
.catch(function(e) {
error("encryption of message failed", true);
});
}).fail(function(e) {
error("get receiver's key from server failed", true);
});
}
function setpw(pwd) {
if (privateKey().keys[0].decrypt(pwd)) {
password = pwd;
chat();
}
}
function getpwd() {
status('');
}
function chat() {
if (!password) return getpwd();
$.ajax({url: "chat.html", success: function(res) {
status(res);
setTimeout(get, 2000);
}}).fail(error);
}
function login() {
status("login ...");
$.post("login.php", {user: userid(),
pubkey: localStorage.pubKey},
function(res) {
if (JSON.parse(res)) {
status("logged in ...", "successfully logged in");
chat();
} else {
error("login failed");
}
}).fail(function(e) {
error(e);
});
}
function newuser() {
status("new user ...");
$.ajax({url: "newuser.html", success: function(res) {
status(res);
}}).fail(error);
}
function start() {
try {
status("Starting up ...");
if (!userid()) {
newuser();
} else {
login();
}
} catch (m) {
error(m);
}
}
$(start);