fwrite($clientsocket, $buf . "\n", (strlen($buf)+1) );
}
+//
+// 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"] = $pass;
+
+ return array(TRUE, "Login successful. Have fun.");
+}
+
+
+//
+// create_new_user() -- attempt to create a new user
+// using a supplied username/password
+// Returns an array with two variables:
+// 0. TRUE or FALSE to determine success or failure
+// 1. String error message (if relevant)
+//
+function create_new_user($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;
+
+ return array(TRUE, "Login successful. Have fun.");
+}
+
+
//
// 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 == 2) $_SESSION["serv_humannode"] = $buf;
+ if ($i == 4) $_SESSION["serv_software"] = $buf;
$i = $i + 1;
- } while ($buf != "000");
+ } while (strcasecmp($buf, "000"));
}
}
echo "<DIV ALIGN=CENTER>\n";
do {
$buf = serv_gets();
- if ($buf != "000") {
+ if (strcasecmp($buf, "000")) {
echo "<TT>", $buf, "</TT><BR>\n" ;
}
- } while ($buf != "000");
+ } while (strcasecmp($buf, "000"));
echo "</DIV>\n";
}
else {
// Ok, now try again.
$clientsocket = fsockopen($sockname, 0, $errno, $errstr, 5);
+
+ // Try to log the user back in.
+ if ($clientsocket) {
+
+
+ if ($_SESSION["username"]) {
+ login_existing_user(
+ $_SESSION["username"],
+ $_SESSION["password"]
+ );
+ }
+ }
}
if ($clientsocket) {
- /*
- echo "Connected. Performing echo tests.<BR>\n";
- flush();
- $cmd = "ECHO test echo string upon connection\n";
- fwrite($clientsocket, $cmd);
- $response = fgets($clientsocket, 4096);
- echo "Response is: ", $response, "<BR>\n";
- flush();
-
- $cmd = "ECHO second test for echo\n";
- fwrite($clientsocket, $cmd);
- $response = fgets($clientsocket, 4096);
- echo "Response is: ", $response, "<BR>\n";
- flush();
- */
+ if (!$_SESSION["serv_humannode"]) {
+ ctdl_get_serv_info();
+ }
}
else {
echo "ERROR: no Citadel socket!<BR>\n";
ctdl_mesg("hello");
?>
+ <div align=center>
+ <form action="do_login.php" method="POST">
+
+ <table border="0" cellspacing="5" cellpadding="5" BGCOLOR="#EEEEEE">
+ <tr><td>User name:</td>
+ <td><input type="text" name="name" maxlength="25"></td></tr>
+ <tr><td>Password:</td>
+ <td><input type="password" name="pass" maxlength="20"></td></tr>
+
+ <tr><td align=center COLSPAN=2>
+ <input type="submit" name="action" value="Login">
+ <input type="submit" name="action" value="New User">
+ <input type="submit" name="action" value="Exit">
+ </td></tr>
+
+ </table>
+ </form>
+ </div>
+
<a href="page2.php">Page Two</a><BR>
<a href="page3.php">Page Three</a><BR>