httpclient : add referer support and Cookie keywords can now be received in capital or lowercase

git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@4799 bf3deb0d-5f1a-0410-827f-c0cc1f45334c

httpclient.php

@@ -4,6 +4,8 @@
   * @author Dominique Fournier <dominique@fournier38.fr>
   */
 
+namespace vendor\domframework;
+
 /** This programe allow to get a HTTP page from a site, and examine the content.
   * It will store the Cookies, allow to do the redirects, follow links and
   * get form / input and send the values.
@@ -35,6 +37,10 @@ class Httpclient
     */
   private $headersReceived = array ();
 
+  /** The headersSent to the server
+    */
+  private $headersSent = array ();
+
   /** The Method used to communicate : GET, POST, HEAD, PUT, DELETE
     */
   private $method = "GET";
@@ -84,6 +90,11 @@ class Httpclient
   /** Store the user agent. If it is empty, it will not be sent to the server
     */
   private $useragent = "HTTPClient";
+
+  /** The last valid page known. Used as referer
+    */
+  private $referer = "";
+
   // }}}
 
   /** The constructor
@@ -193,6 +204,8 @@ class Httpclient
   // }}}
 
   /** Set / Get the debug mode
+    * 0: Nothing is displayed, 1: Only URL are displayed,
+    * 2: headers only send and received, 3: all the content
     * @param boolean|null $debug The debug value to set or get
     */
   public function debug ($debug = null)
@@ -291,6 +304,20 @@ class Httpclient
   }
   // }}}
 
+  /** Get/Set the referer page
+    * @param string|null $referer The new referer that will be used on next
+    * request
+    */
+  public function referer ($referer)
+  // {{{
+  {
+    if ($referer === null)
+      return $this->referer;
+    $this->referer = $referer;
+    return $this;
+  }
+  // }}}
+
   //////////////////////////////////
   ////    THE ACTIVE METHODS    ////
   //////////////////////////////////
@@ -320,6 +347,7 @@ class Httpclient
         throw new \Exception ("File to get exceeded maxsize", 500);
     }
     $this->disconnect ();
+    $this->referer = $url;
     if ($this->httpCode === 301 || $this->httpCode === 302)
     {
       if (! key_exists ("Location", $this->headersReceived))
@@ -420,9 +448,11 @@ class Httpclient
     $this->headersSent = array ();
     $this->headersSent[] = "$this->method $path HTTP/1.1";
     $this->headersSent[] = "Host: ".$parseURL["host"];
-    $this->headersSent[] = "Accept: text/html";
+    $this->headersSent[] = "Accept: text/html;q=0.9, */*;q=0.8";
     if ($this->useragent !== "")
       $this->headersSent[] = "User-Agent: $this->useragent";
+    if ($this->referer !== "")
+      $this->headersSent[] = "Referer: $this->referer";
     $this->headersSent[] = "Connection: keep-alive";
     $cookies = $this->cookieToSend ($this->url);
     if (! empty ($cookies))
@@ -558,9 +588,16 @@ class Httpclient
       $this->contentMethod = "Content-Length";
       $this->bodySize = $headers["Content-Length"];
     }
+    elseif (key_exists ("Connection", $headers) &&
+            $headers["Connection"] === "close")
+    {
+      // Connection closed by server. Nothing to get
+    }
     elseif ($this->httpCode !== 204 && $this->httpCode !== 301 &&
             $this->httpCode !== 302)
+    {
       throw new \Exception ("No transfert content provided", 500);
+    }
     // }}}
   }
   // }}}
@@ -685,8 +722,8 @@ class Httpclient
     {
       @list ($key, $val) = explode ("=", $part, 2);
       $key = trim ($key);
-      if ($key === "path") $path = $val;
+      if (strtolower ($key) === "path") $path = $val;
-      elseif ($key === "domain")
+      elseif (strtolower ($key) === "domain")
       {
         // Check if $domain is compatible with $key before storing the cookie
         if (substr ($domain, -1 * strlen ($val)) === $val)
@@ -699,7 +736,7 @@ class Httpclient
           return "Invalid domain provided";
         }
       }
-      elseif ($key === "expires")
+      elseif (strtolower ($key) === "expires")
       {
         try
         {