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/*
* WALogin.cpp
*
* Created on: 26/06/2012
* Author: Antonio
*/
#include "WALogin.h"
#include "ByteArray.h"
#include "ProtocolTreeNode.h"
#include <iostream>
#include <vector>
#include <map>
#include <stdlib.h>
#include "../common.h" // #TODO Remove Miranda-dependency
using namespace Utilities;
WALogin::WALogin(WAConnection* connection, const std::string &password)
{
m_pConnection = connection;
m_szPassword = password;
m_iAccountKind = -1;
m_tExpireDate = 0L;
}
std::vector<unsigned char> WALogin::login(const std::vector<unsigned char>& authBlob)
{
m_pConnection->out.streamStart(m_pConnection->domain, m_pConnection->resource);
m_pConnection->logData("sent stream start");
sendFeatures();
m_pConnection->logData("sent features");
sendAuth(authBlob);
m_pConnection->logData("send auth, auth blob size %d", authBlob.size());
m_pConnection->in.streamStart();
m_pConnection->logData("read stream start");
return this->readFeaturesUntilChallengeOrSuccess();
}
void WALogin::sendResponse(const std::vector<unsigned char>& challengeData)
{
std::vector<unsigned char>* authBlob = this->getAuthBlob(challengeData);
m_pConnection->out.write(ProtocolTreeNode("response", authBlob));
}
void WALogin::sendFeatures()
{
ProtocolTreeNode* child = new ProtocolTreeNode("receipt_acks");
std::vector<ProtocolTreeNode*>* children = new std::vector<ProtocolTreeNode*>();
children->push_back(child);
ProtocolTreeNode* pictureChild = new ProtocolTreeNode("w:profile:picture") << XATTR("type", "all");
children->push_back(pictureChild);
m_pConnection->out.write(ProtocolTreeNode("stream:features", NULL, children), true);
}
void WALogin::sendAuth(const std::vector<unsigned char>& existingChallenge)
{
std::vector<unsigned char>* data = NULL;
if (!existingChallenge.empty())
data = getAuthBlob(existingChallenge);
m_pConnection->out.write(ProtocolTreeNode("auth", data) <<
XATTR("mechanism", "WAUTH-2") << XATTR("user", m_pConnection->user), true);
}
std::vector<unsigned char>* WALogin::getAuthBlob(const std::vector<unsigned char>& nonce)
{
unsigned char out[4*20];
KeyStream::keyFromPasswordAndNonce(m_szPassword, nonce, out);
m_pConnection->inputKey.init(out + 40, out + 60);
m_pConnection->outputKey.init(out, out + 20);
std::vector<unsigned char>* list = new std::vector<unsigned char>(0);
for (int i = 0; i < 4; i++)
list->push_back(0);
list->insert(list->end(), m_pConnection->user.begin(), m_pConnection->user.end());
list->insert(list->end(), nonce.begin(), nonce.end());
m_pConnection->outputKey.encodeMessage(&((*list)[0]), 0, 4, (int)list->size() - 4);
return list;
}
std::vector<unsigned char> WALogin::readFeaturesUntilChallengeOrSuccess()
{
while (ProtocolTreeNode *root = m_pConnection->in.nextTree()) {
string tmp = root->toString();
m_pConnection->logData(tmp.c_str());
if (ProtocolTreeNode::tagEquals(root, "stream:features")) {
m_pConnection->supports_receipt_acks = root->getChild("receipt_acks") != NULL;
delete root;
continue;
}
if (ProtocolTreeNode::tagEquals(root, "challenge")) {
std::vector<unsigned char> challengedata(root->data->begin(), root->data->end());
delete root;
this->sendResponse(challengedata);
m_pConnection->logData("Send response");
std::vector<unsigned char> data = this->readSuccess();
m_pConnection->logData("Read success");
return std::vector<unsigned char>(data.begin(), data.end());
}
if (ProtocolTreeNode::tagEquals(root, "success")) {
std::vector<unsigned char> ret(root->data->begin(), root->data->end());
this->parseSuccessNode(root);
delete root;
return ret;
}
}
throw WAException("fell out of loop in readFeaturesAndChallenge", WAException::CORRUPT_STREAM_EX, 0);
}
void WALogin::parseSuccessNode(ProtocolTreeNode* node)
{
m_pConnection->out.setSecure();
const string &expiration = node->getAttributeValue("expiration");
if (!expiration.empty()) {
m_tExpireDate = atol(expiration.c_str());
if (m_tExpireDate == 0)
throw WAException("invalid expire date: " + expiration);
}
const string &kind = node->getAttributeValue("kind");
if (kind == "paid")
m_iAccountKind = 1;
else if (kind == "free")
m_iAccountKind = 0;
else
m_iAccountKind = -1;
}
std::vector<unsigned char> WALogin::readSuccess()
{
ProtocolTreeNode *node = m_pConnection->in.nextTree();
if (ProtocolTreeNode::tagEquals(node, "failure")) {
delete node;
throw WAException("Login failure", WAException::LOGIN_FAILURE_EX, WAException::LOGIN_FAILURE_EX_TYPE_PASSWORD);
}
ProtocolTreeNode::require(node, "success");
this->parseSuccessNode(node);
const string &status = node->getAttributeValue("status");
if (status == "expired") {
delete node;
throw WAException("Account expired on" + std::string(ctime(&m_tExpireDate)), WAException::LOGIN_FAILURE_EX, WAException::LOGIN_FAILURE_EX_TYPE_EXPIRED, m_tExpireDate);
}
if (status == "active") {
if (node->getAttributeValue("expiration").empty()) {
delete node;
throw WAException("active account with no expiration");
}
}
else m_iAccountKind = -1;
std::vector<unsigned char> data = *node->data;
delete node;
return data;
}
WALogin::~WALogin()
{}
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