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Thomas Lackner 2012-12-31 05:49:27 -06:00
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<?
/*
SnapHax: a library for communicating with Snaphax
Implements a subset of the Snaphax API
(c) Copyright 2012 Thomas Lackner <lackner@gmail.com>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
$SNAPHAX_DEFAULT_OPTIONS = array(
'blob_enc_key' => 'M02cnQ51Ji97vwT4',
'debug' => false,
'pattern' => '0001110111101110001111010101111011010001001110011000110001000110',
'secret' => 'iEk21fuwZApXlz93750dmW22pw389dPwOk',
'static_token' => 'm198sOkJEn37DjqZ32lpRu76xmw288xSQ9',
'url' => 'https://feelinsonice.appspot.com'
);
if (!function_exists('curl_init')) {
throw new Exception('Snaphax needs the CURL PHP extension.');
}
if (!function_exists('json_decode')) {
throw new Exception('Snaphax needs the JSON PHP extension.');
}
class SnaphaxApi {
function SnaphaxApi($options) {
$this->options = $options;
}
private function debug($text) {
if ($this->options['debug'])
echo "SNAPHAX DEBUG: $text\n";
}
public function blob($snap_id, $username, $auth_token) {
$un = urlencode($username);
$ts = time();
// $token = $this->hash($ts, $auth_token);
// $url = "https://feelinsonice.appspot.com/ph/blob?id=$snap_id&username=$un&timestamp=$ts&req_token=$token";
$url = "/ph/blob";
$result = $this->postToEndpoint($url, array(
'id' => $snap_id,
'timestamp' => $ts,
'username' => $username,
), $auth_token, $ts, 0);
$this->debug('blob result: ' . $result);
$result_decoded = mcrypt_decrypt('rijndael-128', $this->options['blob_enc_key'], $result, 'ecb');
$this->debug('decoded: ' . $result_decoded);
if ($result_decoded[0] == chr(0xFF) &&
$result_decoded[1] == chr(0xD8)) {
return $result_decoded;
} else
return false;
}
public function httpGet($url) {
$ch = curl_init();
curl_setopt($ch,CURLOPT_URL, $this->options['url'].$url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch,CURLOPT_USERAGENT,'Snaphax 4.0.1 (iPad; iPhone OS 6.0; en_US)');
$this->debug($url);
// execute post
$result = curl_exec($ch);
$this->debug($result);
// close connection
curl_close($ch);
return json_decode($result, true);
}
public function postToEndpoint($endpoint, $post_data, $param1, $param2, $json=1) {
$ch = curl_init();
// set the url, number of POST vars, POST data
curl_setopt($ch,CURLOPT_URL, $this->options['url'].$endpoint);
curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch,CURLOPT_USERAGENT,'Snaphax 4.0.1 (iPad; iPhone OS 6.0; en_US)');
$post_data['req_token'] = $this->hash($param1, $param2);
curl_setopt($ch,CURLOPT_POST, count($post_data));
curl_setopt($ch,CURLOPT_POSTFIELDS, http_build_query($post_data));
$this->debug(json_encode($post_data));
// execute post
$result = curl_exec($ch);
$this->debug($result);
// close connection
curl_close($ch);
if ($json)
return json_decode($result, true);
else
return $result;
}
function hash($param1, $param2) {
$this->debug("p1: $param1");
$this->debug("p2: $param2");
$s1 = $this->options['secret'] . $param1;
$this->debug("s1: $s1");
$s2 = $param2 . $this->options['secret'];
$this->debug("s2: $s2");
$hash = hash_init('sha256');
hash_update($hash, $s1);
$s3 = hash_final($hash, false);
$this->debug("s3: $s3");
$hash = hash_init('sha256');
hash_update($hash, $s2);
$s4 = hash_final($hash, false);
$this->debug("s4: $s4");
$out = '';
for ($i = 0; $i < strlen($this->options['pattern']); $i++) {
$c = $this->options['pattern'][$i];
if ($c == '0')
$out .= $s3[$i];
else
$out .= $s4[$i];
}
$this->debug("out: $out");
return $out;
}
}
class Snaphax {
const STATUS_NEW = 1;
function Snaphax($options) {
global $SNAPHAX_DEFAULT_OPTIONS;
$this->options = array_merge($SNAPHAX_DEFAULT_OPTIONS, $options);
$this->api = new SnaphaxApi($this->options);
$this->auth_token = false;
}
private function error($text) {
error_report($text);
return false;
}
function login() {
$ts = time();
$out = $this->api->postToEndpoint(
'/ph/login',
array(
'username' => $this->options['username'],
'password' => $this->options['password'],
'timestamp' => $ts
),
$this->options['static_token'],
$ts
);
if (is_array($out) &&
!empty($out['auth_token'])) {
$this->auth_token = $out['auth_token'];
}
return $out;
}
function fetch($id) {
if (!$this->auth_token) {
return $this->error('no auth token');
}
$blob = $this->api->blob($id,
$this->options['username'],
$this->auth_token);
return $blob;
}
}