fix bug #86 PHP 5.6 SSL bug

According to http://sourceforge.net/p/phpcrawl/bugs/86/ fix PHP 5.6 SSL bug. But use "peer_name" depending on PHP version. So implemented a version check to st right SSL value.

Author: merzilla

libs/PHPCrawlerHTTPRequest.class.php

@@ -533,6 +533,13 @@ protected function openSocket(&$error_code, &$error_string)
     // Get IP for hostname
     $ip_address = $this->DNSCache->getIP($this->url_parts["host"]);
 
+    // since PHP 5.6 SNI_server_name is deprecated
+    if (version_compare(PHP_VERSION, '5.6.0') >= 0) {
+      $serverName = 'peer_name';
+    } else {
+      $serverName = 'SNI_server_name';
+    }
+    
     // Open socket
     if ($this->proxy != null)
     {
@@ -544,7 +551,11 @@ protected function openSocket(&$error_code, &$error_string)
       // If ssl -> perform Server name indication
       if ($this->url_parts["protocol"] == "https://")
       {
-        $context = stream_context_create(array('ssl' => array('SNI_server_name' => $this->url_parts["host"])));
+        $context = stream_context_create(array(
+                'ssl' => array(
+                        $serverName => $this->url_parts["host"],
+                ),
+        ));
         $this->socket = @stream_socket_client($protocol_prefix.$ip_address.":".$this->url_parts["port"], $error_code, $error_str,
                                               $this->socketConnectTimeout, STREAM_CLIENT_CONNECT, $context);
       }
@@ -911,7 +922,8 @@ protected function buildRequestHeader()
 
     $headerlines[] = "Host: ".$this->url_parts["host"]."\r\n";
 
-    $headerlines[] = "User-Agent: ".str_replace("\n", "", $this->userAgentString)."\r\n";    $headerlines[] = "Accept: */*\r\n";
+    $headerlines[] = "User-Agent: ".str_replace("\n", "", $this->userAgentString)."\r\n";
+    $headerlines[] = "Accept: */*\r\n";
 
     // Request GZIP-content
     if ($this->request_gzip_content == true)
@@ -968,9 +980,9 @@ protected function buildRequestHeader()
    * Prepares the given HTTP-query-string for the HTTP-request.
    *
    * HTTP-query-strings always should be utf8-encoded and urlencoded afterwards.
-   * So "/path/file?test=tatütata" will be converted to "/path/file?test=tat%C3%BCtata":
+   * So "/path/file?test=tat�tata" will be converted to "/path/file?test=tat%C3%BCtata":
    *
-   * @param stirng The quetry-string (like "/path/file?test=tatütata")
+   * @param stirng The quetry-string (like "/path/file?test=tat�tata")
    * @return string
    */
   protected function prepareHTTPRequestQuery($query)