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kopano-webapp-passwd/php/class.passwdmodule.php
2021-06-10 16:56:21 +02:00

354 lines
16 KiB
PHP

<?php
/**
* Passwd module.
* Module that will be used to change passwords of the user
*/
class PasswdModule extends Module
{
/**
* Process the incoming events that were fire by the client.
*/
public function execute()
{
foreach($this->data as $actionType => $actionData)
{
if(isset($actionType)) {
try {
switch($actionType)
{
case 'save':
$this->save($actionData);
break;
default:
$this->handleUnknownActionType($actionType);
}
} catch (MAPIException $e) {
$this->sendFeedback(false, $this->errorDetailsFromException($e));
}
}
}
}
/**
* Change the password of user. Do some calidation and call proper methods based on
* zarafa setup.
* @param {Array} $data data sent by client.
*/
public function save($data)
{
$errorMessage = '';
// some sanity checks
if(empty($data)) {
$errorMessage = dgettext("plugin_passwd", 'No data received.');
}
if(empty($data['username'])) {
$errorMessage = dgettext("plugin_passwd", 'User name is empty.');
}
if(empty($data['current_password'])) {
$errorMessage = dgettext("plugin_passwd", 'Current password is empty.');
}
if(empty($data['new_password']) || empty($data['new_password_repeat'])) {
$errorMessage = dgettext("plugin_passwd", 'New password is empty.');
}
if($data['new_password'] !== $data['new_password_repeat']) {
$errorMessage = dgettext("plugin_passwd", 'New passwords do not match.');
}
if(empty($errorMessage)) {
if(PLUGIN_PASSWD_LDAP) {
$this->saveInLDAP($data);
} else {
$this->saveInDB($data);
}
} else {
$this->sendFeedback(false, array(
'type' => ERROR_ZARAFA,
'info' => array(
'display_message' => $errorMessage
)
));
}
}
/**
* Function will connect to LDAP and will try to modify user's password.
* @param {Array} $data data sent by client.
*/
public function saveInLDAP($data)
{
$errorMessage = '';
// connect to LDAP server
$ldapconn = ldap_connect(PLUGIN_PASSWD_LDAP_URI);
// check connection is successfull
if(ldap_errno($ldapconn) === 0) {
// get the users uid, if we have a multi tenant installation then remove company name from user name
if (PLUGIN_PASSWD_LOGIN_WITH_TENANT){
$parts = explode('@', $data['username']);
$uid = $parts[0];
} else {
$uid = $data['username'];
}
// check if we should use tls!
if(strrpos(PLUGIN_PASSWD_LDAP_URI, "ldaps://", -strlen(PLUGIN_PASSWD_LDAP_URI)) === FALSE && PLUGIN_PASSWD_LDAP_USE_TLS === true) {
ldap_start_tls($ldapconn);
}
// set connection parametes
ldap_set_option($ldapconn, LDAP_OPT_PROTOCOL_VERSION, 3);
ldap_set_option($ldapconn, LDAP_OPT_REFERRALS, 0);
// now bind to the ldap server to search the user dn
ldap_bind($ldapconn, PLUGIN_PASSWD_LDAP_BIND_DN, PLUGIN_PASSWD_LDAP_BIND_PW);
// set ldapfilter
$ldap_filter = "(&(" . PLUGIN_PASSWD_LDAP_USER_LOGIN_ATTR . "=" . $uid . ")" . PLUGIN_PASSWD_LDAP_FILTER . ")";
// search for the user dn that will be used to do login into LDAP
$userdn = ldap_search (
$ldapconn, // connection-identify
PLUGIN_PASSWD_LDAP_BASEDN, // basedn
$ldap_filter
);
if ($userdn) {
$entries = ldap_get_entries($ldapconn, $userdn);
$userdn = $entries[0]['dn'];
// bind to ldap directory
// login with current password if that fails then current password is wrong
ldap_bind($ldapconn, $userdn, $data['current_password']);
if(ldap_errno($ldapconn) === 0) {
$passwd = $data['new_password'];
$oldpass = $data['current_password'];
if ($this->checkPasswordStrenth($passwd)) {
$msg = $this->change_password($ldapconn, $userdn, $passwd, $oldpass);
if ($msg === "passwordchanged") {
// password changed successfully
// send feedback to client
$this->sendFeedback(true, array(
'info' => array(
'display_message' => dgettext("plugin_passwd", 'Password is changed successfully.')
)
));
WebAppSession::getInstance()->destroy();
header("Location: /");
} else {
$errorMessage = dgettext("plugin_passwd", 'Password is not changed. Error: ' . $msg);
}
} else {
$errorMessage = dgettext("plugin_passwd", 'Password is weak. Password should contain capital, non-capital letters and numbers. Password should have 8 to 20 characters.');
}
} else {
$errorMessage = dgettext("plugin_passwd", 'Current password does not match.');
}
// release ldap-bind
ldap_unbind($ldapconn);
}
}
if(!empty($errorMessage)) {
$this->sendFeedback(false, array(
'type' => ERROR_ZARAFA,
'info' => array(
'ldap_error' => ldap_errno($ldapconn),
'ldap_error_name' => ldap_error($ldapconn),
'display_message' => $errorMessage
)
));
}
}
/**
* Function will try to change user's password via MAPI in SOAP connection.
* @param {Array} $data data sent by client.
*/
public function saveInDB($data)
{
$errorMessage = '';
$passwd = $data['new_password'];
/*
// get current session password
$sessionPass = $_SESSION['password'];
// if user has openssl module installed
if (function_exists("openssl_decrypt")) {
if (version_compare(phpversion(), "5.3.3", "<")) {
$sessionPass = openssl_decrypt($sessionPass, "des-ede3-cbc", PASSWORD_KEY, 0);
} else {
$sessionPass = openssl_decrypt($sessionPass, "des-ede3-cbc", PASSWORD_KEY, 0, PASSWORD_IV);
}
if (!$sessionPass) {
$sessionPass = $_SESSION['password'];
}
}
*/
// Get current user password
$encryptionStore = EncryptionStore::getInstance();
$sessionPass = $encryptionStore->get('password');
if($data['current_password'] === $sessionPass) {
if ($this->checkPasswordStrenth($passwd)) {
// all information correct, change password
$store = $GLOBALS['mapisession']->getDefaultMessageStore();
$userinfo = mapi_zarafa_getuser_by_name($store, $data['username']);
if (mapi_zarafa_setuser($store, $userinfo['userid'], $data['username'], $userinfo['fullname'], $userinfo['emailaddress'], $passwd, 0, $userinfo['admin'])) {
// password changed successfully
/* Not able to find a way, session is discarded and user should log in again
// write new password to session because we don't want user to re-authenticate
session_start();
// if user has openssl module installed
if (function_exists("openssl_encrypt")) {
// In PHP 5.3.3 the iv parameter was added
if (version_compare(phpversion(), "5.3.3", "<")) {
$_SESSION['password'] = openssl_encrypt($passwd, "des-ede3-cbc", PASSWORD_KEY, 0);
} else {
$_SESSION['password'] = openssl_encrypt($passwd, "des-ede3-cbc", PASSWORD_KEY, 0, PASSWORD_IV);
}
} else {
$_SESSION['password'] = $passwd;
}
session_write_close();
// send feedback to client
$this->sendFeedback(true, array(
'info' => array(
'display_message' => dgettext("plugin_passwd", 'Password is changed successfully.')
)
));
*/
// Give the session a new id
session_regenerate_id();
} else {
$errorMessage = dgettext("plugin_passwd", 'Password is not changed.');
}
} else {
$errorMessage = dgettext("plugin_passwd", 'Password is weak. Password should contain capital, non-capital letters and numbers. Password should have 8 to 20 characters.');
}
} else {
$errorMessage = dgettext("plugin_passwd", 'Current password does not match.');
}
if(!empty($errorMessage)) {
$this->sendFeedback(false, array(
'type' => ERROR_ZARAFA,
'info' => array(
'display_message' => $errorMessage
)
));
}
}
/**
* Function will check strength of the password and if it does not meet minimum requirements then
* will return false.
* Password should meet the following criteria:
* - min. 8 chars, max. 20
* - contain caps and noncaps characters
* - contain numbers
* @param {String} $password password which should be checked.
* @return {Boolean} true if password passes the minimum requirement else false.
*/
public function checkPasswordStrenth($password)
{
if (preg_match("#.*^(?=.{8,20})(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9]).*$#", $password)) {
return true;
} else {
return false;
}
}
/**
* Function will generate SSHA hash to use to store user's password in LDAP.
* @param {String} $text text based on which hash will be generated.
*/
function sshaEncode($text)
{
$salt = '';
for ($i=1; $i<=10; $i++) {
$salt .= substr('0123456789abcdef', rand(0, 15), 1);
}
$hash = '{SSHA}' . base64_encode(pack('H*',sha1($text . $salt)) . $salt);
return $hash;
}
function make_ad_password($password) {
$password = "\"" . $password . "\"";
$adpassword = mb_convert_encoding($password, "UTF-16LE", "UTF-8");
return $adpassword;
}
function change_password( $ldap, $dn, $password, $oldpassword ) {
$result = "";
$error_code = "";
$error_msg = "";
$ppolicy_error_code = "";
$time = time();
# Transform password value
$password = $this->make_ad_password($password);
# Set password value
$userdata["unicodePwd"] = $password;
# Commit modification on directory
# The AD password change procedure is modifying the attribute unicodePwd by
# first deleting unicodePwd with the old password and them adding it with the
# the new password
$oldpassword = $this->make_ad_password($oldpassword);
$modifications = array(
array(
"attrib" => "unicodePwd",
"modtype" => LDAP_MODIFY_BATCH_REMOVE,
"values" => array($oldpassword),
),
array(
"attrib" => "unicodePwd",
"modtype" => LDAP_MODIFY_BATCH_ADD,
"values" => array($password),
),
);
$bmod = ldap_modify_batch($ldap, $dn, $modifications);
$error_code = ldap_errno($ldap);
$error_msg = ldap_error($ldap);
if ( !isset($error_code) ) {
$result = "ldaperror";
} elseif ( $error_code > 0 ) {
$result = "passworderror";
error_log("LDAP - Modify password error $error_code ($error_msg)");
if ( $ppolicy_error_code === 5 ) { $result = "badquality"; }
if ( $ppolicy_error_code === 6 ) { $result = "tooshort"; }
if ( $ppolicy_error_code === 7 ) { $result = "tooyoung"; }
if ( $ppolicy_error_code === 8 ) { $result = "inhistory"; }
} else {
$result = "passwordchanged";
}
return $result;
}
}