X-Git-Url: https://code.citadel.org/?a=blobdiff_plain;f=ctdlphp%2Fctdlsession.php;h=c9614c753ef57d2b24ee068d67e2d4eed051f4ca;hb=fa2dd842abb5feedea3e2253255722fcaecc3c6f;hp=605529b52d1ec158e52763eeb5cc89cd6447bb55;hpb=ff6b88ee11a3bb07d630d2255d6defbb7d8330a0;p=citadel.git

diff --git a/ctdlphp/ctdlsession.php b/ctdlphp/ctdlsession.php
index 605529b52..c9614c753 100644
--- a/ctdlphp/ctdlsession.php
+++ b/ctdlphp/ctdlsession.php
@@ -1,85 +1,154 @@
 <?PHP
-
-//
-// ctdlsession.php
+// $Id$
 //
 // This gets called from within the header functions.  It establishes or
 // connects to a PHP session, and then connects to Citadel if necessary.
 //
+// Web designers: please make changes in ctdlheader.php, not here.
+//
+// Copyright (c) 2003 by Art Cancro <ajc@uncensored.citadel.org>
+// This program is released under the terms of the GNU General Public License.
+
 
 function establish_citadel_session() {
 
 	global $session, $clientsocket;
 
-	// echo "Calling session_start()<BR>\n";
-	// flush();
+	if (strcmp('4.3.0', phpversion()) > 0) {
+		die("This program requires PHP 4.3.0 or newer.");
+	}
+
+
 	session_start();
-	$session = "CtdlSession." . session_id();
+
+	if (isset($_SESSION["ctdlsession"])) {
+		$session = $_SESSION["ctdlsession"];
+	}
+	else {
+		$session = "CtdlSession." . time() . rand(1000,9999) ;
+		$_SESSION["ctdlsession"] = $session;
+	}
 
 	// See if there's a Citadel connection proxy open for this session.
 	// The name of the socket is identical to the name of the
 	// session, and it's found in the /tmp directory.
 
 	$sockname = "/tmp/" . $session . ".socket" ;
-
-	// echo "Connecting to ", $sockname, "...<BR>\n";
-	// flush();
-	$clientsocket = fsockopen($sockname, 0, $errno, $errstr, 5);
+	$errno = 0; 
+	$errstr = "";
+	if (is_array(stat($sockname)))
+		$clientsocket = fsockopen(SOCKET_PREFIX.$sockname, 0, $errno, $errstr, 5);
+	else
+		$clientsocket = false;
+//// TODO: if we get connection refused...
+	echo "$socketname - $errno - $errstr";
+	
 	if (!$clientsocket) {
-		//echo "Socket not present.  Firing up a new proxy.<BR>\n";
-		//flush();
-
 		// It ain't there, dude.  Open up the proxy. (C version)
 		//$cmd = "./sessionproxy " . $sockname ;
 		//exec($cmd);
 
 		// It ain't there, dude.  Open up the proxy.  (PHP version)
+		if (CITADEL_DEBUG_PROXY){
+			$stdout = '>>/tmp/sessionproxyout.txt ';
+		}
+		else{
+			$stdout = '>/dev/null ';
+		}
+
 		$cmd = "./sessionproxy.php " . $sockname .
-			" </dev/null >/dev/null 2>&1 " .
+			" </dev/null ".$stdout."2>&1 " .
 			" 3>&1 4>&1 5>&1 6>&1 7>&1 8>&1 & " ;
 		exec($cmd);
-		sleep(2);
-
-		// Ok, now try again.
-		// echo "Connecting to ", $sockname, "...<BR>\n";
-		// flush();
-		$clientsocket = fsockopen($sockname, 0, $errno, $errstr, 5);
+		sleep(1);
+
+		// Keep attempting connections 10 times per second up to 100 times
+		$attempts = 0;
+		while (!$clientsocket) {
+			usleep(100);
+			if (is_array(stat($sockname)))
+				$clientsocket = fsockopen(SOCKET_PREFIX.$sockname, 0, $errno, $errstr, 5);
+			else 
+				$clientsocket = false;
+			$attempts += 1;
+			if ($attempts > 100) {
+				echo "ERROR: unable to start connection proxy. ";
+				echo "Please contact your system administrator.<BR>\n";
+				flush();
+				exit(1);
+			}
+		}
+
+		// At this point we have a good connection to Citadel.
+		$identity=array(
+			"DevelNr" => '0',
+			"ClientID" => '8',
+			"VersionNumber" => '001',
+			"ClientInfoString" => 'PHP web client|',
+			"Remote Address" => $_SERVER['REMOTE_ADDR'] );
+
+		ctdl_iden($identity);	// Identify client
+		ctdl_MessageFormatsPrefered(array("text/html","text/plain"));
+		if (isset($_SESSION["username"])) {
+			login_existing_user(
+				$_SESSION["username"],
+				$_SESSION["password"]
+			);
+		}
+
+		if (isset($_SESSION["room"])) {
+			ctdl_goto($_SESSION["room"]);
+		}
+		else {
+			ctdl_goto("_BASEROOM_");
+		}
 	}
 
-	if ($clientsocket) {
-		/*
-		echo "Connected.  Performing echo tests.<BR>\n";
-		flush();
-		$cmd = "ECHO test echo string upon connection\n";
-		fwrite($clientsocket, $cmd, strlen($cmd));
-		$response = fgets($clientsocket, 4096);
-		echo "Response is: ", $response, "<BR>\n";
-		flush();
-
-		$cmd = "ECHO second test for echo\n";
-		fwrite($clientsocket, $cmd, strlen($cmd));
-		$response = fgets($clientsocket, 4096);
-		echo "Response is: ", $response, "<BR>\n";
-		flush();
-		*/
+	if (!isset($_SESSION["serv_humannode"])) {
+		$server_info = ctdl_get_serv_info();
+		// print_r($server_info);
+		$keys = array_keys($server_info);
+		foreach ($keys as $key)
+			$_SESSION[$key] = $server_info[$key];
 	}
-	else {
-		echo "ERROR: no Citadel socket!<BR>\n";
-		flush();
+
+	// If the user is trying to call up any page other than
+	// login.php logout.php do_login.php,
+	// and the session is not logged in, redirect to login.php
+	//
+	if (isset($_SESSION["logged_in"]) && ($_SESSION["logged_in"] != 1)) {
+		$filename = basename(getenv('SCRIPT_NAME'));
+		if (	(strcmp($filename, "login.php"))
+		   &&	(strcmp($filename, "logout.php"))
+		   &&	(strcmp($filename, "do_login.php"))
+		) {
+			header("Location: login.php");
+			exit(0);
+		}
 	}
+
 	
 }
 
 
+//
+// Clear out both our Citadel session and our PHP session.  We're done.
+//
 function ctdl_end_session() {
 	global $clientsocket, $session;
 
-	session_destroy();
+	// Tell the Citadel server to terminate our connection.
+	// (The extra newlines force it to see that the Citadel session
+	// ended, and the proxy will quit.)
+	//
+	fwrite($clientsocket, "QUIT\n\n\n\n\n\n\n\n\n\n\n");
+	$response = fgets($clientsocket, 4096);		// IGnore response
+	fclose($clientsocket);
 	unset($clientsocket);
-	unset($session); 
 
-	echo "Session destroyed.<BR>\n";
-	
+	// Now clear our PHP session.
+	$_SESSION = array();
+	session_write_close();
 }
 
 ?>