ayah_web_service_host; // Add the host.
$url.= "/ws/script/"; // Add the path to the API script.
$url.= urlencode($this->ayah_publisher_key); // Add the encoded publisher key.
// Build and return the needed HTML code.
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);
}
}
else
{
$this->__log("ERROR", __FUNCTION__, "Unable to score the result. Please check that your ayah_config.php file contains your correct publisher key and scoring key.");
}
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()
{
// Build the url to the AYAH webservice..
$url = 'https://'; // The AYAH webservice API requires https.
$url.= $this->ayah_web_service_host; // Add the host.
$url.= "/ws/recordConversion/"; // Add the path to the API script.
$url.= urlencode($this->ayah_publisher_key); // Add the encoded publisher key.
if( isset( $this->session_secret ) ){
return '';
} else {
$this->__log("ERROR", __FUNCTION__, '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 {
$this->__log("ERROR", __FUNCTION__, "Unrecognized key for constructor param: '$key'");
}
}
// Generate some warnings if a foot shot is coming
if ($this->ayah_publisher_key == "") {
$this->__log("ERROR", __FUNCTION__, "Warning: Publisher key is not defined. This won't work.");
}
if ($this->ayah_scoring_key == "") {
$this->__log("ERROR", __FUNCTION__, "Warning: Scoring key is not defined. This won't work.");
}
if ($this->ayah_web_service_host == "") {
$this->__log("ERROR", __FUNCTION__, "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 {
$this->__log("ERROR", __FUNCTION__, "Post to https://$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'))
{
// Build the cURL url.
$curl_url = "https://" . $hostname . $path;
// Log it.
$this->__log("DEBUG", __FUNCTION__, "Using cURl: url='$curl_url', fields='$fields_string'");
// Initialize cURL session.
if ($ch = curl_init($curl_url))
{
// Set the cURL options.
curl_setopt($ch, CURLOPT_POST, count($fields));
curl_setopt($ch, CURLOPT_POSTFIELDS, $fields_string);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
// Execute the cURL request.
$result = curl_exec($ch);
// Close the curl session.
curl_close($ch);
}
else
{
// Log it.
$this->__log("DEBUG", __FUNCTION__, "Unable to initialize cURL: url='$curl_url'");
}
}
else
{
$this->__log("DEBUG", __FUNCTION__, "No cURL support....using fsockopen()");
// 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 " . $this->get_version_number() . "\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 ) {
$this->__log("ERROR", __FUNCTION__, "Could not open socket");
} else {
fwrite($fs, $http_request);
while (!feof($fs)) {
$result .= fgets($fs, 4096);
}
$result = explode("\r\n\r\n", $result, 2);
$result = $result[1];
}
}
// Log the result.
$this->__log("DEBUG", __FUNCTION__, "result='$result'");
// Return the result.
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) {
$this->__log("ERROR", __FUNCTION__, "Exception when calling json_decode: " . $e->getMessage());
$result = null;
}
} elseif (file_Exists("json.php")) {
require_once('json.php');
$json = new Services_JSON();
$result = $json->decode($string);
if (!is_array($result)) {
$this->__log("ERROR", __FUNCTION__, "Expected array; got something else: $result");
$result = array();
}
} else {
$this->__log("ERROR", __FUNCTION__, "No JSON decode function available.");
}
return $result;
}
/**
* Get the current debug mode (TRUE or FALSE)
*
* @return boolean
*/
public function debug_mode($mode=null)
{
// Set it if the mode is passed.
if (null !== $mode)
{
$this->__debug_mode = $mode;
// Display a message if debug_mode is TRUE.
if ($mode)
{
$this->__log("DEBUG", "", "Debug mode is now on.");
}
}
// If necessary, set the default.
if ( ! isset($this->__debug_mode) or (null == $this->__debug_mode)) $this->__debug_mode = FALSE;
// Return TRUE or FALSE.
return ($this->__debug_mode)? TRUE : FALSE;
}
/**
* Get the current version number
*
* @return string
*/
public function get_version_number()
{
return ($this->__version_number)? TRUE : FALSE;
}
/**
* Log a message
*
* @return null
*/
private function __log($type, $function, $message)
{
// Add a prefix to the message.
$message = __CLASS__ . "::$function: " . $message;
// Is it an error message?
if (FALSE !== stripos($type, "error"))
{
error_log($message);
}
// Output to the screen too?
if ($this->debug_mode())
{
$style = "padding: 10px; border: 1px solid #EED3D7; background: #F2DEDE; color: #B94A48;";
print "$type: $message
\n";
}
}
}