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jqueryRest = function() {
// we do not fetch the salt from the server
function register(session)
{
return sendVerifier(session);
}
function sendVerifier(session) {
var salt = session.getSalt();
return $.post("users.json", { user:
{ login: session.getI(),
password_salt: salt,
password_verifier: session.getV(salt).toString(16)
}
});
}
function handshake(session) {
return $.post("sessions.json", { login: session.getI(), A: session.getAstr()});
}
function authenticate(session) {
return $.ajax({
url: "sessions/" + session.getI() + ".json",
type: 'PUT',
data: {client_auth: session.getM()},
});
}
return {
register: register,
register_send_verifier: sendVerifier,
handshake: handshake,
authenticate: authenticate
};
};
srp.remote = (function(){
function signup(){
jqueryRest().register(srp.session)
.success(srp.signedUp)
.error(srp.error)
};
function login(){
jqueryRest().handshake(srp.session)
.success(receiveSalts)
.error(srp.error)
};
function receiveSalts(response){
// B = 0 will make the algorithm always succeed
// -> refuse such a server answer
if(response.B === 0) {
srp.error("Server send random number 0 - could not login.");
}
else if(! response.salt || response.salt === 0) {
srp.error("Server failed to send salt - could not login.");
}
else
{
srp.session.calculations(response.salt, response.B);
jqueryRest().authenticate(srp.session)
.success(confirmAuthentication)
.error(srp.error);
}
};
// Receive M2 from the server and verify it
// If an error occurs, raise it as an alert.
function confirmAuthentication(response)
{
if (srp.session.validate(response.M2))
srp.loggedIn();
else
srp.error("Server key does not match");
};
return {
signup: signup,
login: login
}
}());
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