* Added an initial version of the goto command

[citadel.git] / ctdlphp / ctdlprotocol.php

diff --git a/ctdlphp/ctdlprotocol.php b/ctdlphp/ctdlprotocol.php
index 2a6545187f5e6ff8bd0895d1460fc2120e161b07..cebf9f45210a99795eeca50fb6bebb40dae5cb12 100644 (file)
--- a/ctdlphp/ctdlprotocol.php
+++ b/ctdlphp/ctdlprotocol.php
@@ -31,61 +31,204 @@ function serv_puts($buf) {
 }
 
 
+
+//
+// Identify this client, and the hostname where the user is, to Citadel.
+//
+function ctdl_iden() {
+       global $clientsocket;
+
+       serv_puts("IDEN 0|8|001|PHP web client|" . $_SERVER['REMOTE_ADDR'] );
+       $buf = serv_gets();
+}
+
+
+
+//
+// login_existing_user() -- attempt to login using a supplied username/password
+// Returns an array with two variables:
+// 0. TRUE or FALSE to determine success or failure
+// 1. String error message (if relevant)
+//
+function login_existing_user($user, $pass) {
+       global $clientsocket;
+
+       serv_puts("USER " . $user);
+       $resp = serv_gets();
+       if (substr($resp, 0, 1) != "3") {
+               return array(FALSE, substr($resp, 4));
+       }
+
+       serv_puts("PASS " . $pass);
+       $resp = serv_gets();
+       if (substr($resp, 0, 1) != "2") {
+               return array(FALSE, substr($resp, 4));
+       }
+
+       $_SESSION["username"] = $user;
+       $_SESSION["password"] = $pass;
+       become_logged_in(substr($resp, 4));
+
+       return array(TRUE, "Login successful.  Have fun.");
+}
+
+
+//
+// create_new_user() -- attempt to create a new user 
+//                      using a supplied username/password
+// Returns an array with two variables:
+// 0. TRUE or FALSE to determine success or failure
+// 1. String error message (if relevant)
+//
+function create_new_user($user, $pass) {
+       global $clientsocket;
+
+       serv_puts("NEWU " . $user);
+       $resp = serv_gets();
+       if (substr($resp, 0, 1) != "2") {
+               return array(FALSE, substr($resp, 4));
+       }
+
+       serv_puts("SETP " . $pass);
+       $resp = serv_gets();
+       if (substr($resp, 0, 1) != "2") {
+               return array(FALSE, substr($resp, 4));
+       }
+
+       $_SESSION["username"] = $user;
+       $_SESSION["password"] = $pass;
+       become_logged_in(substr($resp, 4));
+
+       return array(TRUE, "Login successful.  Have fun.");
+}
+
+
+//
+// Code common to both existing-user and new-user logins
+//
+function become_logged_in($server_parms) {
+       $_SESSION["logged_in"] = 1;
+       ctdl_goto("_BASEROOM_");
+}
+
+
+
 //
 // Learn all sorts of interesting things about the Citadel server to
 // which we are connected.
 //
 function ctdl_get_serv_info() {
-       global $serv_humannode;
-       global $serv_software;
-
        serv_puts("INFO");
-       serv_gets($buf);
+       $buf = serv_gets();
        if (substr($buf, 0, 1) == "1") {
                $i = 0;
                do {
                        $buf = serv_gets();
-                       if ($i == 2) $serv_humannode = $buf;
-                       if ($i == 4) $serv_software = $buf;
+                       if ($i == 1) $_SESSION["serv_nodename"] = $buf;
+                       if ($i == 2) $_SESSION["serv_humannode"] = $buf;
+                       if ($i == 3) $_SESSION["serv_fqdn"] = $buf;
+                       if ($i == 4) $_SESSION["serv_software"] = $buf;
+                       if ($i == 6) $_SESSION["serv_city"] = $buf;
+                       if ($i == 7) $_SESSION["serv_sysadmin"] = $buf;
                        $i = $i + 1;
-               } while ($buf != "000");
+               } while (strcasecmp($buf, "000"));
        }
 
 }
 
 
+//
+// Display a system banner.  (Returns completed HTML.)
+// (This is probably temporary because it outputs more or less finalized
+// markup.  For now it's just usable.)
+//
+function ctdl_mesg($msgname) {
+       global $clientsocket;
 
-function test_for_echo() {
+       $msgtext = "<DIV ALIGN=CENTER>\n";
 
-       global $clientsocket, $session;
+       serv_puts("MESG " . $msgname);
+       $response = serv_gets();
 
-       $command = "ECHO Video vertigo ... test for echo.";
+       if (substr($response, 0, 1) == "1") {
+               while (strcmp($buf = serv_gets(), "000")) {
+                       $msgtext .= "<TT>" . htmlspecialchars($buf)
+                               . "</TT><BR>\n" ;
+               }
+       }
+       else {
+               $msgtext .= "<B><I>" . substr($response, 4) . "</I></B><BR>\n";
+       }
 
-       serv_puts($command);
-       $response = serv_gets();
-       echo $response, "<BR>";
-       flush();
+       $msgtext .= "</DIV>\n";
+       return($msgtext);
 }
 
-function ctdl_mesg($msgname) {
+
+//
+// Fetch the list of users currently logged in.
+//
+function ctdl_rwho() {
        global $clientsocket;
 
-       serv_puts("MESG " . $msgname);
+       serv_puts("RWHO");
        $response = serv_gets();
+
+       if (substr($response, 0, 1) != "1") {
+               return array(0, NULL);
+       }
        
-       if (substr($response, 0, 1) == "1") {
-               echo "<DIV ALIGN=CENTER>\n";
-               do {
-                       $buf = serv_gets();
-                       if ($buf != "000") {
-                               echo "<TT>", $buf, "</TT><BR>\n" ;
-                       }
-               } while ($buf != "000");
-               echo "</DIV>\n";
+       $all_lines = array();
+       $num_lines = 0;
+
+       while (strcmp($buf = serv_gets(), "000")) {
+
+               $thisline = array();
+
+               $tok = strtok($buf, "|");
+               if ($tok) $thisline["session"] = $tok;
+
+               $tok = strtok("|");
+               if ($tok) $thisline["user"] = $tok;
+               
+               $tok = strtok("|");
+               if ($tok) $thisline["room"] = $tok;
+               
+               $tok = strtok("|");
+               if ($tok) $thisline["host"] = $tok;
+               
+               $tok = strtok("|");
+               if ($tok) $thisline["client"] = $tok;
+
+               // IGnore the rest of the fields for now.
+
+               $num_lines = array_push($all_lines, $thisline);
+       }
+
+       return array($num_lines, $all_lines);
+
+}
+
+
+//
+// Goto a room.
+//
+function ctdl_goto($to_where) {
+       
+       serv_puts("GOTO " . $to_where);
+       $response = serv_gets();
+
+       if (substr($response, 0, 1) == "2") {
+               $_SESSION["room"] = strtok(substr($response, 4), "|");
+               return array(TRUE, substr($response, 0, 3));
        }
+
        else {
-               echo "<B><I>", substr($response, 4), "</I></B><BR>\n";
+               return array(FALSE, substr($response, 0, 3));
        }
+
 }
 
+
+
 ?>