From 851481dcef60c84a06cb938bd5fc587cec5b3a58 Mon Sep 17 00:00:00 2001
From: Rossiani Wijaya <rossianiwijaya@gmail.com>
Date: Wed, 6 Jan 2010 06:49:16 +0000
Subject: [PATCH] MDL-20949 printing out password policy requirements on
 signup, change password and edit user profile.

---
 lang/en_utf8/auth.php          |  6 ++++++
 lib/weblib.php                 | 33 +++++++++++++++++++++++++++++++++
 login/change_password_form.php |  6 +++++-
 login/signup_form.php          |  4 ++++
 user/editadvanced_form.php     |  4 ++++
 5 files changed, 52 insertions(+), 1 deletion(-)

diff --git a/lang/en_utf8/auth.php b/lang/en_utf8/auth.php
index c9ea9944d8..888e83c3d2 100644
--- a/lang/en_utf8/auth.php
+++ b/lang/en_utf8/auth.php
@@ -87,6 +87,12 @@ $string['getanothercaptcha'] = 'Get another CAPTCHA';
 $string['getanaudiocaptcha'] = 'Get an audio CAPTCHA';
 $string['getanimagecaptcha'] = 'Get an image CAPTCHA';
 $string['recaptcha'] = 'reCAPTCHA';
+$string['informminpasswordlength'] = 'at least $a characters';
+$string['informminpassworddigits'] = 'at least $a digit(s)';
+$string['informminpasswordlower'] = 'at least $a lower case letter(s)';
+$string['informminpasswordnonalphanum'] = 'at least $a non-alphanumeric character(s)';
+$string['informminpasswordupper'] = 'at least $a upper case letter(s)';
+$string['informpasswordpolicy'] = 'The password must have $a';
 
 // Strings below here are module specific and will be duplicated in auth_* files
 // Module specific language strings should also be copied into their respective
diff --git a/lib/weblib.php b/lib/weblib.php
index 16826465c3..c9b0700759 100644
--- a/lib/weblib.php
+++ b/lib/weblib.php
@@ -3323,3 +3323,36 @@ function auth_get_plugin_title($authtype) {
     return $authtitle;
 }
 
+/**
+ * Print password policy.
+ * @uses $CFG
+ * @return string
+ */
+function print_password_policy(){
+    global $CFG;
+    $messages = array();
+
+    if(!empty($CFG->passwordpolicy)){
+           $messages[] = get_string('informminpasswordlength', 'auth', $CFG->minpasswordlength);
+           if(!empty($CFG->minpassworddigits)){
+               $messages[] = get_string('informminpassworddigits', 'auth', $CFG->minpassworddigits);
+           }
+           if(!empty($CFG->minpasswordlower)){
+               $messages[] = get_string('informminpasswordlower', 'auth', $CFG->minpasswordlower);
+           }
+           if(!empty($CFG->minpasswordupper)){
+               $messages[] = get_string('informminpasswordupper', 'auth', $CFG->minpasswordupper);
+           }
+           if(!empty($CFG->minpasswordnonalphanum)){
+               $messages[] = get_string('informminpasswordnonalphanum', 'auth', $CFG->minpasswordnonalphanum);
+           }
+
+           $lastmessage = new stdClass;
+           $lastmessage->one = '';
+           $lastmessage->two = array_pop($messages);
+           $messages[] = get_string('and','moodle',$lastmessage);
+           $message = join(', ', $messages);
+           $message = '<div class="fitemtitle">&nbsp;</div><div class="felement ftext">'. get_string('informpasswordpolicy', 'auth', $message) . '</div>';
+       }
+       return $message;
+}
\ No newline at end of file
diff --git a/login/change_password_form.php b/login/change_password_form.php
index 9aa6c9b11f..b874f1d6e5 100644
--- a/login/change_password_form.php
+++ b/login/change_password_form.php
@@ -5,7 +5,7 @@ require_once $CFG->libdir.'/formslib.php';
 class login_change_password_form extends moodleform {
 
     function definition() {
-        global $USER;
+        global $USER, $CFG;
 
         $mform =& $this->_form;
 
@@ -14,6 +14,10 @@ class login_change_password_form extends moodleform {
         // visible elements
         $mform->addElement('static', 'username', get_string('username'), $USER->username);
 
+        if(!empty($CFG->passwordpolicy)){
+            $passwordpolicy = print_password_policy();
+            $mform->addElement('html', $passwordpolicy);
+        }
         $mform->addElement('password', 'password', get_string('oldpassword'));
         $mform->addRule('password', get_string('required'), 'required', null, 'client');
         $mform->setType('password', PARAM_RAW);
diff --git a/login/signup_form.php b/login/signup_form.php
index 97c02a76c7..da0865a530 100644
--- a/login/signup_form.php
+++ b/login/signup_form.php
@@ -16,6 +16,10 @@ class login_signup_form extends moodleform {
         $mform->setType('username', PARAM_NOTAGS);
         $mform->addRule('username', get_string('missingusername'), 'required', null, 'server');
 
+        if(!empty($CFG->passwordpolicy)){
+            $passwordpolicy = print_password_policy();
+            $mform->addElement('html', $passwordpolicy);
+        }
         $mform->addElement('passwordunmask', 'password', get_string('password'), 'maxlength="32" size="12"');
         $mform->setType('password', PARAM_RAW);
         $mform->addRule('password', get_string('missingpassword'), 'required', null, 'server');
diff --git a/user/editadvanced_form.php b/user/editadvanced_form.php
index c6e7ae4e8c..f7f435f295 100644
--- a/user/editadvanced_form.php
+++ b/user/editadvanced_form.php
@@ -42,6 +42,10 @@ class user_editadvanced_form extends moodleform {
         $mform->setHelpButton('auth', array('authchange', get_string('chooseauthmethod','auth')));
         $mform->setAdvanced('auth');
 
+        if(!empty($CFG->passwordpolicy)){
+            $passwordpolicy = print_password_policy();
+            $mform->addElement('html', '<div class="fitem">'.$passwordpolicy . '</div>');
+        }
         $mform->addElement('passwordunmask', 'newpassword', get_string('newpassword'), 'size="20"');
         $mform->setHelpButton('newpassword',array('newpassword', get_string('leavetokeep')));
         $mform->setType('newpassword', PARAM_RAW);
-- 
2.39.5