Added support for poppassd to Change Password

plugins/change_password/backend/poppassd.php

@@ -0,0 +1,136 @@
+<?php
+
+/**
+ * $id$
+ * Poppassd change password backend
+ * Author: Seth Randall <sethr@missoulafcu.org>
+ */
+
+/**
+ * Config vars
+ */
+
+/**
+ * Set the address of the server your poppass daemon runs on.
+ * If it's the same as your imap server, you can leave it blank
+ */
+global $poppassd_server;
+
+$poppassd_server = '';
+
+/**
+ * Define here the name of your password changing function.
+ */
+global $squirrelmail_plugin_hooks;
+$squirrelmail_plugin_hooks['change_password_dochange']['poppassd'] = 'cpw_poppassd_dochange';
+$squirrelmail_plugin_hooks['change_password_init']['template'] = 'cpw_poppassd_init';
+
+
+/**
+ * Use this function to do any backend-specific initialization,
+ * e.g. checking requirements, before the password change form
+ * is displayed to the user.
+ */
+function cpw_poppassd_init() {
+}
+
+/**
+ * This is the function that is specific to your backend. It takes
+ * the current password (as supplied by the user) and the desired
+ * new password. It will return an array of messages. If everything
+ * was successful, the array will be empty. Else, it will contain
+ * the errormessage(s).
+ * Constants to be used for these messages:
+ * CPW_CURRENT_NOMATCH -> "Your current password is not correct."
+ * CPW_INVALID_PW -> "Your new password contains invalid characters."
+ *
+ * @param array data The username/currentpw/newpw data. 
+ * @return array Array of error messages.
+ */
+function cpw_poppassd_dochange($data) {
+    // unfortunately, we can only pass one parameter to a hook function,
+    // so we have to pass it as an array.
+    $username = $data['username'];
+    $curpw = $data['curpw'];
+    $newpw = $data['newpw'];
+
+    $msgs = array();
+
+    // your code here to change the password for $username from
+    // $currentpw into $newpw.
+    $msgs = cpw_poppassd_go($username, $curpw, $newpw, 0);
+
+    return $msgs;
+}
+
+function cpw_poppassd_closeport($pop_socket, &$messages, $debug = 0) {
+    if ($debug) {
+        array_push($messages, _("Closing Connection"));
+    }
+    fputs($pop_socket, "quit\r\n");
+    fclose($pop_socket);
+}
+
+function cpw_poppassd_readfb($pop_socket, &$result, &$messages, $debug = 0) {
+   $strResp = '';
+   $result  = '';
+
+   if (!feof($pop_socket)) {
+      $strResp = fgets($pop_socket, 1024);
+      $result  = substr(trim($strResp), 0, 3);  // 200, 500
+      if(!preg_match('/^[23]\d\d/', $result) || $debug) {
+          $messages[] = "--> $strResp";
+      }
+   }
+}
+
+function cpw_poppassd_go($username, $old_pw, $new_pw, $debug = 0) {
+    global $poppassd_server;
+    global $imapServerAddress;
+
+    if($poppassd_server == '') {
+        $poppassd_server = $imapServerAddress;
+    }
+
+    $messages = array();
+
+    if ($debug) {
+        $messages[] = _("Connecting to Password Server");
+    }
+    $pop_socket = fsockopen($poppassd_server, 106, $errno, $errstr);
+    if (!$pop_socket) {
+        $messages[] = _("ERROR:") .  "$errstr ($errno)";
+        return $messages;
+    }
+
+    cpw_poppassd_readfb($pop_socket, $result, $messages, $debug);
+    if(!preg_match('/^2\d\d/', $result) ) {
+        cpw_poppassd_closeport($pop_socket, $messages, $debug);
+        return $messages;
+    }
+
+    fputs($pop_socket, "user $username\r\n");
+    cpw_poppassd_readfb($pop_socket, $result, $messages, $debug);
+    if(!preg_match('/^[23]\d\d/', $result) ) {
+        cpw_poppassd_closeport($pop_socket, $messages, $debug);
+        return $messages;
+    }
+
+    fputs($pop_socket, "pass $old_pw\r\n");
+    cpw_poppassd_readfb($pop_socket, $result, $messages, $debug);
+    if(!preg_match('/^[23]\d\d/', $result) ) {
+        cpw_poppassd_closeport($pop_socket, $messages, $debug);
+        return $messages;
+    }
+
+    fputs($pop_socket, "newpass $new_pw\r\n");
+    cpw_poppassd_readfb($pop_socket, $result, $messages, $debug);
+    cpw_poppassd_closeport($pop_socket, $messages, $debug);
+    if(!preg_match('/^2\d\d/', $result) ) {
+        return $messages;
+    }
+
+    return $messages;
+}
+
+?>