ayah_web_service_host . "/ws/script/" .
urlencode($this->ayah_publisher_key);
return "";
}
/**
* Check whether the user is a human
* Wrapper for the scoreGame API call
*
* @return boolean
*/
public function scoreResult() {
$result = false;
if ($this->session_secret) {
$fields = array(
'session_secret' => urlencode($this->session_secret),
'scoring_key' => $this->ayah_scoring_key
);
$resp = $this->doHttpsPostReturnJSONArray($this->ayah_web_service_host, "/ws/scoreGame", $fields);
if ($resp) {
$result = ($resp->status_code == 1);
}
}
return $result;
}
/**
* Records a conversion
* Called on the goal page that A and B redirect to
* A/B Testing Specific Function
*
* @return boolean
*/
public function recordConversion(){
if( isset( $this->session_secret ) ){
return '';
} else {
error_log('AYAH::recordConversion - AYAH Conversion Error: No Session Secret');
return FALSE;
}
}
/**
* Constructor
* If the session secret exists in input, it grabs it
* @param $params associative array with keys publisher_key, scoring_key, web_service_host
*
*/
public function __construct($params = array()) {
if(array_key_exists("session_secret", $_REQUEST)){
$this->session_secret = $_REQUEST["session_secret"];
}
// Set them to defaults
$this->ayah_publisher_key = "";
$this->ayah_scoring_key = "";
$this->ayah_web_service_host = "ws.areyouahuman.com";
// If the constants exist, override with those
if (defined('AYAH_PUBLISHER_KEY')) {
$this->ayah_publisher_key = AYAH_PUBLISHER_KEY;
}
if (defined('AYAH_SCORING_KEY')) {
$this->ayah_scoring_key = AYAH_SCORING_KEY;
}
if (defined('AYAH_WEB_SERVICE_HOST')) {
$this->ayah_web_service_host = AYAH_WEB_SERVICE_HOST;
}
// Lastly grab the parameters input and save them
foreach (array_keys($params) as $key) {
if (in_array($key, array("publisher_key", "scoring_key", "web_service_host"))) {
$variable = "ayah_" . $key;
$this->$variable = $params[$key];
} else {
error_log("AYAH::__construct: Unrecognized key for constructor param: $key");
}
}
// Generate some warnings if a foot shot is coming
if ($this->ayah_publisher_key == "") {
error_log("AYAH::__construct: Warning: Publisher key is not defined. This won't work.");
}
if ($this->ayah_scoring_key == "") {
error_log("AYAH::__construct: Warning: Scoring key is not defined. This won't work.");
}
if ($this->ayah_web_service_host == "") {
error_log("AYAH::__construct: Warning: Web service host is not defined. This won't work.");
}
}
/**
* Do a HTTPS POST, return some JSON decoded as array (Internal function)
* @param $host hostname
* @param $path path
* @param $fields associative array of fields
* return JSON decoded data structure or empty data structure
*/
protected function doHttpsPostReturnJSONArray($hostname, $path, $fields) {
$result = $this->doHttpsPost($hostname, $path, $fields);
if ($result) {
$result = $this->doJSONArrayDecode($result);
} else {
error_log("AYAH::doHttpsPostGetJSON: Post to https://$hostname$path returned no result.");
$result = array();
}
return $result;
}
// Internal function; does an HTTPS post
protected function doHttpsPost($hostname, $path, $fields) {
$result = "";
// URLencode the post string
$fields_string = "";
foreach($fields as $key=>$value) {
if (is_array($value)) {
foreach ($value as $v) {
$fields_string .= $key . '[]=' . $v . '&';
}
} else {
$fields_string .= $key.'='.$value.'&';
}
}
rtrim($fields_string,'&');
// cURL or something else
if (function_exists('curl_init')) {
$curlsession = curl_init();
curl_setopt($curlsession,CURLOPT_URL,"https://" . $hostname . $path);
curl_setopt($curlsession,CURLOPT_POST,count($fields));
curl_setopt($curlsession,CURLOPT_POSTFIELDS,$fields_string);
curl_setopt($curlsession,CURLOPT_RETURNTRANSFER,1);
curl_setopt($curlsession,CURLOPT_SSL_VERIFYHOST,0);
curl_setopt($curlsession,CURLOPT_SSL_VERIFYPEER,false);
$result = curl_exec($curlsession);
} else {
error_log("No cURL support.");
// Build a header
$http_request = "POST $path HTTP/1.1\r\n";
$http_request .= "Host: $hostname\r\n";
$http_request .= "Content-Type: application/x-www-form-urlencoded;\r\n";
$http_request .= "Content-Length: " . strlen($fields_string) . "\r\n";
$http_request .= "User-Agent: AreYouAHuman/PHP 1.0.2\r\n";
$http_request .= "Connection: Close\r\n";
$http_request .= "\r\n";
$http_request .= $fields_string ."\r\n";
$result = '';
$errno = $errstr = "";
$fs = fsockopen("ssl://" . $hostname, 443, $errno, $errstr, 10);
if( false == $fs ) {
error_log('Could not open socket');
} else {
fwrite($fs, $http_request);
while (!feof($fs)) {
$result .= fgets($fs, 4096);
}
$result = explode("\r\n\r\n", $result, 2);
$result = $result[1];
}
}
return $result;
}
// Internal function: does a JSON decode of the string
protected function doJSONArrayDecode($string) {
$result = array();
if (function_exists("json_decode")) {
try {
$result = json_decode( $string);
} catch (Exception $e) {
error_log("AYAH::doJSONArrayDecode() - Exception when calling json_decode: " . $e->getMessage());
$result = null;
}
} elseif (file_Exists("json.php")) {
$json = new Services_JSON();
$result = $json->decode($string);
if (!is_array($result)) {
error_log("AYAH::doJSONArrayDecode: Expected array; got something else: $result");
$result = array();
}
} else {
error_log("AYAH::doJSONArrayDecode: No JSON decode function available.");
}
return $result;
}
}