<?PHP
-function test_for_echo() {
+// $Id$
+//
+// Implements various Citadel server commands.
+//
+// Copyright (c) 2003 by Art Cancro <ajc@uncensored.citadel.org>
+// This program is released under the terms of the GNU General Public License.
+//
- global $clientsocket, $session;
- $command = "ECHO Video vertigo ... test for echo.\n";
+//
+// serv_gets() -- generic function to read one line of text from the server
+//
+function serv_gets() {
+ global $clientsocket;
- echo "Trying echo ... session name is ", $session, "<BR>\n";
- flush();
- echo "Writing...<BR>\n";
- flush();
- // fwrite($clientsocket, $command, strlen($command));
- fwrite($clientsocket, $command);
- echo "Reading...<BR>\n";
- flush();
- $response = fgets($clientsocket, 4096);
- echo $response, "<BR>";
- flush();
+ $buf = fgets($clientsocket, 4096); // Read line
+ $buf = substr($buf, 0, (strlen($buf)-1) ); // strip trailing LF
+ return $buf;
}
+
+//
+// serv_puts() -- generic function to write one line of text to the server
+//
+function serv_puts($buf) {
+ global $clientsocket;
+
+ fwrite($clientsocket, $buf . "\n", (strlen($buf)+1) );
+}
+
+
+
+//
+// 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() {
+ serv_puts("INFO");
+ $buf = serv_gets();
+ if (substr($buf, 0, 1) == "1") {
+ $i = 0;
+ do {
+ $buf = serv_gets();
+ if ($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 = $i + 1;
+ } while (strcasecmp($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;
+
+ $msgtext = "<DIV ALIGN=CENTER>\n";
+
+ serv_puts("MESG " . $msgname);
+ $response = serv_gets();
+
+ if (substr($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";
+ }
+
+ $msgtext .= "</DIV>\n";
+ return($msgtext);
+}
+
+
+//
+// Fetch the list of users currently logged in.
+//
+function ctdl_rwho() {
+ global $clientsocket;
+
+ serv_puts("RWHO");
+ $response = serv_gets();
+
+ if (substr($response, 0, 1) != "1") {
+ return array(0, NULL);
+ }
+
+ $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($response, 0, 3));
+ }
+
+ else {
+ return array(FALSE, substr($response, 0, 3));
+ }
+
+}
+
+
+
+//
+// Fetch the list of known rooms.
+//
+function ctdl_knrooms() {
+ global $clientsocket;
+
+ serv_puts("LKRA");
+ $response = serv_gets();
+
+ if (substr($response, 0, 1) != "1") {
+ return array(0, NULL);
+ }
+
+ $all_lines = array();
+ $num_lines = 0;
+
+ while (strcmp($buf = serv_gets(), "000")) {
+
+ $thisline = array();
+
+ $tok = strtok($buf, "|");
+ if ($tok) $thisline["name"] = $tok;
+
+ $tok = strtok("|");
+ if ($tok) $thisline["flags"] = $tok;
+
+ $tok = strtok("|");
+ if ($tok) $thisline["floor"] = $tok;
+
+ $tok = strtok("|");
+ if ($tok) $thisline["order"] = $tok;
+
+ $tok = strtok("|");
+ if ($tok) $thisline["flags2"] = $tok;
+
+ $tok = strtok("|");
+ if ($tok) $thisline["access"] = $tok;
+
+ if ($thisline["access"] & 8) {
+ $thisline["hasnewmsgs"] = TRUE;
+ }
+ else {
+ $thisline["hasnewmsgs"] = FALSE;
+ }
+
+ $num_lines = array_push($all_lines, $thisline);
+ }
+
+ return array($num_lines, $all_lines);
+
+}
+
+
+
?>