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silverstripe-framework/security/Member.php

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<?php
/**
* The member class which represents the users of the system
*
* @package framework
* @subpackage security
*
* @property string $FirstName
* @property string $Surname
* @property string $Email
* @property string $Password
* @property string $RememberLoginToken
* @property string $TempIDHash
* @property string $TempIDExpired
* @property int $NumVisit
* @property string $LastVisited Date and time of last visit
* @property string $AutoLoginHash
* @property string $AutoLoginExpired
* @property string $PasswordEncryption
* @property string $Salt
* @property string $PasswordExpiry
* @property string $LockedOutUntil
* @property string $Locale
* @property int $FailedLoginCount
* @property string $DateFormat
* @property string $TimeFormat
*/
class Member extends DataObject implements TemplateGlobalProvider {
private static $db = array(
'FirstName' => 'Varchar',
'Surname' => 'Varchar',
'Email' => 'Varchar(254)', // See RFC 5321, Section 4.5.3.1.3. (256 minus the < and > character)
'TempIDHash' => 'Varchar(160)', // Temporary id used for cms re-authentication
'TempIDExpired' => 'SS_Datetime', // Expiry of temp login
'Password' => 'Varchar(160)',
'RememberLoginToken' => 'Varchar(160)', // Note: this currently holds a hash, not a token.
'AutoLoginHash' => 'Varchar(160)', // Used to auto-login the user on password reset
'AutoLoginExpired' => 'SS_Datetime',
// This is an arbitrary code pointing to a PasswordEncryptor instance,
// not an actual encryption algorithm.
// Warning: Never change this field after its the first password hashing without
// providing a new cleartext password as well.
'PasswordEncryption' => "Varchar(50)",
'Salt' => 'Varchar(50)',
'PasswordExpiry' => 'Date',
'LockedOutUntil' => 'SS_Datetime',
'Locale' => 'Varchar(6)',
// handled in registerFailedLogin(), only used if $lock_out_after_incorrect_logins is set
'FailedLoginCount' => 'Int',
// In ISO format
'DateFormat' => 'Varchar(30)',
'TimeFormat' => 'Varchar(30)',
);
private static $belongs_many_many = array(
'Groups' => 'Group',
);
private static $has_one = array();
private static $has_many = array(
'LoggedPasswords' => 'MemberPassword',
);
private static $many_many = array();
private static $many_many_extraFields = array();
private static $default_sort = '"Surname", "FirstName"';
private static $indexes = array(
'Email' => true,
//Removed due to duplicate null values causing MSSQL problems
//'AutoLoginHash' => Array('type'=>'unique', 'value'=>'AutoLoginHash', 'ignoreNulls'=>true)
);
/**
* @config
* @var boolean
*/
private static $notify_password_change = false;
/**
* All searchable database columns
* in this object, currently queried
* with a "column LIKE '%keywords%'
* statement.
*
* @var array
* @todo Generic implementation of $searchable_fields on DataObject,
* with definition for different searching algorithms
* (LIKE, FULLTEXT) and default FormFields to construct a searchform.
*/
private static $searchable_fields = array(
'FirstName',
'Surname',
'Email',
);
private static $summary_fields = array(
'FirstName',
'Surname',
'Email',
);
/**
* Internal-use only fields
*
* @config
* @var array
*/
private static $hidden_fields = array(
'RememberLoginToken',
'AutoLoginHash',
'AutoLoginExpired',
'PasswordEncryption',
'PasswordExpiry',
'LockedOutUntil',
'TempIDHash',
'TempIDExpired',
'Salt',
'NumVisit'
);
/**
* @config
* @var Array See {@link set_title_columns()}
*/
private static $title_format = null;
/**
* The unique field used to identify this member.
* By default, it's "Email", but another common
* field could be Username.
*
* @config
* @var string
*/
private static $unique_identifier_field = 'Email';
/**
* @config
* {@link PasswordValidator} object for validating user's password
*/
private static $password_validator = null;
/**
* @config
* The number of days that a password should be valid for.
* By default, this is null, which means that passwords never expire
*/
private static $password_expiry_days = null;
/**
* @config
* @var Int Number of incorrect logins after which
* the user is blocked from further attempts for the timespan
* defined in {@link $lock_out_delay_mins}.
*/
private static $lock_out_after_incorrect_logins = 10;
/**
* @config
* @var integer Minutes of enforced lockout after incorrect password attempts.
* Only applies if {@link $lock_out_after_incorrect_logins} greater than 0.
*/
private static $lock_out_delay_mins = 15;
/**
* @config
* @var String If this is set, then a session cookie with the given name will be set on log-in,
* and cleared on logout.
*/
private static $login_marker_cookie = null;
/**
* Indicates that when a {@link Member} logs in, Member:session_regenerate_id()
* should be called as a security precaution.
*
* This doesn't always work, especially if you're trying to set session cookies
* across an entire site using the domain parameter to session_set_cookie_params()
*
* @config
* @var boolean
*/
private static $session_regenerate_id = true;
/**
* Default lifetime of temporary ids.
*
* This is the period within which a user can be re-authenticated within the CMS by entering only their password
* and without losing their workspace.
*
* Any session expiration outside of this time will require them to login from the frontend using their full
* username and password.
*
* Defaults to 72 hours. Set to zero to disable expiration.
*
* @config
* @var int Lifetime in seconds
*/
private static $temp_id_lifetime = 259200;
/**
* @deprecated 4.0 Use the "Member.session_regenerate_id" config setting instead
*/
public static function set_session_regenerate_id($bool) {
Deprecation::notice('4.0', 'Use the "Member.session_regenerate_id" config setting instead');
self::config()->session_regenerate_id = $bool;
}
/**
* Ensure the locale is set to something sensible by default.
*/
public function populateDefaults() {
parent::populateDefaults();
$this->Locale = i18n::get_closest_translation(i18n::get_locale());
}
public function requireDefaultRecords() {
parent::requireDefaultRecords();
// Default groups should've been built by Group->requireDefaultRecords() already
static::default_admin();
}
/**
* Get the default admin record if it exists, or creates it otherwise if enabled
*
* @return Member
*/
public static function default_admin() {
// Check if set
if(!Security::has_default_admin()) return null;
// Find or create ADMIN group
singleton('Group')->requireDefaultRecords();
$adminGroup = Permission::get_groups_by_permission('ADMIN')->First();
// Find member
$admin = Member::get()
->filter('Email', Security::default_admin_username())
->first();
if(!$admin) {
// 'Password' is not set to avoid creating
// persistent logins in the database. See Security::setDefaultAdmin().
// Set 'Email' to identify this as the default admin
$admin = Member::create();
$admin->FirstName = _t('Member.DefaultAdminFirstname', 'Default Admin');
$admin->Email = Security::default_admin_username();
$admin->write();
}
// Ensure this user is in the admin group
if(!$admin->inGroup($adminGroup)) {
$admin->Groups()->add($adminGroup);
}
return $admin;
}
/**
* If this is called, then a session cookie will be set to "1" whenever a user
* logs in. This lets 3rd party tools, such as apache's mod_rewrite, detect
* whether a user is logged in or not and alter behaviour accordingly.
*
* One known use of this is to bypass static caching for logged in users. This is
* done by putting this into _config.php
* <pre>
* Member::set_login_marker_cookie("SS_LOGGED_IN");
* </pre>
*
* And then adding this condition to each of the rewrite rules that make use of
* the static cache.
* <pre>
* RewriteCond %{HTTP_COOKIE} !SS_LOGGED_IN=1
* </pre>
*
* @deprecated 4.0 Use the "Member.login_marker_cookie" config setting instead
* @param $cookieName string The name of the cookie to set.
*/
public static function set_login_marker_cookie($cookieName) {
Deprecation::notice('4.0', 'Use the "Member.login_marker_cookie" config setting instead');
self::config()->login_marker_cookie = $cookieName;
}
/**
* Check if the passed password matches the stored one (if the member is not locked out).
*
* @param string $password
* @return ValidationResult
*/
public function checkPassword($password) {
$result = $this->canLogIn();
// Short-circuit the result upon failure, no further checks needed.
if (!$result->valid()) return $result;
if(empty($this->Password) && $this->exists()) {
$result->error(_t('Member.NoPassword','There is no password on this member.'));
return $result;
}
$e = PasswordEncryptor::create_for_algorithm($this->PasswordEncryption);
if(!$e->check($this->Password, $password, $this->Salt, $this)) {
$result->error(_t (
'Member.ERRORWRONGCRED',
'The provided details don\'t seem to be correct. Please try again.'
));
}
return $result;
}
/**
* Returns a valid {@link ValidationResult} if this member can currently log in, or an invalid
* one with error messages to display if the member is locked out.
*
* You can hook into this with a "canLogIn" method on an attached extension.
*
* @return ValidationResult
*/
public function canLogIn() {
$result = ValidationResult::create();
if($this->isLockedOut()) {
$result->error(
_t(
'Member.ERRORLOCKEDOUT2',
'Your account has been temporarily disabled because of too many failed attempts at ' .
'logging in. Please try again in {count} minutes.',
null,
array('count' => $this->config()->lock_out_delay_mins)
)
);
}
$this->extend('canLogIn', $result);
return $result;
}
/**
* Returns true if this user is locked out
*/
public function isLockedOut() {
return $this->LockedOutUntil && time() < strtotime($this->LockedOutUntil);
}
/**
* Regenerate the session_id.
* This wrapper is here to make it easier to disable calls to session_regenerate_id(), should you need to.
* They have caused problems in certain
* quirky problems (such as using the Windmill 0.3.6 proxy).
*/
public static function session_regenerate_id() {
if(!self::$session_regenerate_id) return;
// This can be called via CLI during testing.
if(Director::is_cli()) return;
$file = '';
$line = '';
// @ is to supress win32 warnings/notices when session wasn't cleaned up properly
// There's nothing we can do about this, because it's an operating system function!
if(!headers_sent($file, $line)) @session_regenerate_id(true);
}
/**
* Get the field used for uniquely identifying a member
* in the database. {@see Member::$unique_identifier_field}
*
* @deprecated 4.0 Use the "Member.unique_identifier_field" config setting instead
* @return string
*/
public static function get_unique_identifier_field() {
Deprecation::notice('4.0', 'Use the "Member.unique_identifier_field" config setting instead');
return Member::config()->unique_identifier_field;
}
/**
* Set the field used for uniquely identifying a member
* in the database. {@see Member::$unique_identifier_field}
*
* @deprecated 4.0 Use the "Member.unique_identifier_field" config setting instead
* @param $field The field name to set as the unique field
*/
public static function set_unique_identifier_field($field) {
Deprecation::notice('4.0', 'Use the "Member.unique_identifier_field" config setting instead');
Member::config()->unique_identifier_field = $field;
}
/**
* Set a {@link PasswordValidator} object to use to validate member's passwords.
*/
public static function set_password_validator($pv) {
self::$password_validator = $pv;
}
/**
* Returns the current {@link PasswordValidator}
*/
public static function password_validator() {
return self::$password_validator;
}
/**
* Set the number of days that a password should be valid for.
* Set to null (the default) to have passwords never expire.
*
* @deprecated 4.0 Use the "Member.password_expiry_days" config setting instead
*/
public static function set_password_expiry($days) {
Deprecation::notice('4.0', 'Use the "Member.password_expiry_days" config setting instead');
self::config()->password_expiry_days = $days;
}
/**
* Configure the security system to lock users out after this many incorrect logins
*
* @deprecated 4.0 Use the "Member.lock_out_after_incorrect_logins" config setting instead
*/
public static function lock_out_after_incorrect_logins($numLogins) {
Deprecation::notice('4.0', 'Use the "Member.lock_out_after_incorrect_logins" config setting instead');
self::config()->lock_out_after_incorrect_logins = $numLogins;
}
public function isPasswordExpired() {
if(!$this->PasswordExpiry) return false;
return strtotime(date('Y-m-d')) >= strtotime($this->PasswordExpiry);
}
/**
* Logs this member in
*
* @param bool $remember If set to TRUE, the member will be logged in automatically the next time.
*/
public function logIn($remember = false) {
$this->extend('beforeMemberLoggedIn');
self::session_regenerate_id();
Session::set("loggedInAs", $this->ID);
// This lets apache rules detect whether the user has logged in
if(Member::config()->login_marker_cookie) Cookie::set(Member::config()->login_marker_cookie, 1, 0);
if($remember) {
// Store the hash and give the client the cookie with the token.
$generator = new RandomGenerator();
$token = $generator->randomToken('sha1');
$hash = $this->encryptWithUserSettings($token);
$this->RememberLoginToken = $hash;
Cookie::set('alc_enc', $this->ID . ':' . $token, 90, null, null, null, true);
} else {
$this->RememberLoginToken = null;
Cookie::force_expiry('alc_enc');
}
// Clear the incorrect log-in count
$this->registerSuccessfulLogin();
// Don't set column if its not built yet (the login might be precursor to a /dev/build...)
if(array_key_exists('LockedOutUntil', DB::field_list('Member'))) {
$this->LockedOutUntil = null;
}
$this->regenerateTempID();
$this->write();
// Audit logging hook
$this->extend('memberLoggedIn');
}
/**
* Trigger regeneration of TempID.
*
* This should be performed any time the user presents their normal identification (normally Email)
* and is successfully authenticated.
*/
public function regenerateTempID() {
$generator = new RandomGenerator();
$this->TempIDHash = $generator->randomToken('sha1');
$this->TempIDExpired = self::config()->temp_id_lifetime
? date('Y-m-d H:i:s', strtotime(SS_Datetime::now()->getValue()) + self::config()->temp_id_lifetime)
: null;
$this->write();
}
/**
* Check if the member ID logged in session actually
* has a database record of the same ID. If there is
* no logged in user, FALSE is returned anyway.
*
* @return boolean TRUE record found FALSE no record found
*/
public static function logged_in_session_exists() {
if($id = Member::currentUserID()) {
if($member = DataObject::get_by_id('Member', $id)) {
if($member->exists()) return true;
}
}
return false;
}
/**
* Log the user in if the "remember login" cookie is set
*
* The <i>remember login token</i> will be changed on every successful
* auto-login.
*/
public static function autoLogin() {
// Don't bother trying this multiple times
self::$_already_tried_to_auto_log_in = true;
if(strpos(Cookie::get('alc_enc'), ':') === false
|| Session::get("loggedInAs")
|| !Security::database_is_ready()
) {
return;
}
list($uid, $token) = explode(':', Cookie::get('alc_enc'), 2);
$member = DataObject::get_by_id("Member", $uid);
// check if autologin token matches
if($member) {
$hash = $member->encryptWithUserSettings($token);
if(!$member->RememberLoginToken || $member->RememberLoginToken !== $hash) {
$member = null;
}
}
if($member) {
self::session_regenerate_id();
Session::set("loggedInAs", $member->ID);
// This lets apache rules detect whether the user has logged in
if(Member::config()->login_marker_cookie) {
Cookie::set(Member::config()->login_marker_cookie, 1, 0, null, null, false, true);
}
$generator = new RandomGenerator();
$token = $generator->randomToken('sha1');
$hash = $member->encryptWithUserSettings($token);
$member->RememberLoginToken = $hash;
Cookie::set('alc_enc', $member->ID . ':' . $token, 90, null, null, false, true);
$member->NumVisit++;
$member->write();
// Audit logging hook
$member->extend('memberAutoLoggedIn');
}
}
/**
* Logs this member out.
*/
public function logOut() {
$this->extend('beforeMemberLoggedOut');
Session::clear("loggedInAs");
if(Member::config()->login_marker_cookie) Cookie::set(Member::config()->login_marker_cookie, null, 0);
Session::destroy();
$this->extend('memberLoggedOut');
$this->RememberLoginToken = null;
Cookie::force_expiry('alc_enc');
// Switch back to live in order to avoid infinite loops when
// redirecting to the login screen (if this login screen is versioned)
Session::clear('readingMode');
$this->write();
// Audit logging hook
$this->extend('memberLoggedOut');
}
/**
* Utility for generating secure password hashes for this member.
*/
public function encryptWithUserSettings($string) {
if (!$string) return null;
// If the algorithm or salt is not available, it means we are operating
// on legacy account with unhashed password. Do not hash the string.
if (!$this->PasswordEncryption) {
return $string;
}
// We assume we have PasswordEncryption and Salt available here.
$e = PasswordEncryptor::create_for_algorithm($this->PasswordEncryption);
return $e->encrypt($string, $this->Salt);
}
/**
* Generate an auto login token which can be used to reset the password,
* at the same time hashing it and storing in the database.
*
* @param int $lifetime The lifetime of the auto login hash in days (by default 2 days)
*
* @returns string Token that should be passed to the client (but NOT persisted).
*
* @todo Make it possible to handle database errors such as a "duplicate key" error
*/
public function generateAutologinTokenAndStoreHash($lifetime = 2) {
do {
$generator = new RandomGenerator();
$token = $generator->randomToken();
$hash = $this->encryptWithUserSettings($token);
} while(DataObject::get_one('Member', array(
'"Member"."AutoLoginHash"' => $hash
)));
$this->AutoLoginHash = $hash;
$this->AutoLoginExpired = date('Y-m-d H:i:s', time() + (86400 * $lifetime));
$this->write();
return $token;
}
/**
* Check the token against the member.
*
* @param string $autologinToken
*
* @returns bool Is token valid?
*/
public function validateAutoLoginToken($autologinToken) {
$hash = $this->encryptWithUserSettings($autologinToken);
$member = self::member_from_autologinhash($hash, false);
return (bool)$member;
}
/**
* Return the member for the auto login hash
*
* @param string $hash The hash key
* @param bool $login Should the member be logged in?
*
* @return Member the matching member, if valid
* @return Member
*/
public static function member_from_autologinhash($hash, $login = false) {
$nowExpression = DB::get_conn()->now();
$member = DataObject::get_one('Member', array(
"\"Member\".\"AutoLoginHash\"" => $hash,
"\"Member\".\"AutoLoginExpired\" > $nowExpression" // NOW() can't be parameterised
));
if($login && $member) $member->logIn();
return $member;
}
/**
* Find a member record with the given TempIDHash value
*
* @param string $tempid
* @return Member
*/
public static function member_from_tempid($tempid) {
$members = Member::get()
->filter('TempIDHash', $tempid);
// Exclude expired
if(static::config()->temp_id_lifetime) {
$members = $members->filter('TempIDExpired:GreaterThan', SS_Datetime::now()->getValue());
}
return $members->first();
}
/**
* Returns the fields for the member form - used in the registration/profile module.
* It should return fields that are editable by the admin and the logged-in user.
*
* @return FieldList Returns a {@link FieldList} containing the fields for
* the member form.
*/
public function getMemberFormFields() {
$fields = parent::getFrontendFields();
$fields->replaceField('Password', $password = new ConfirmedPasswordField (
'Password',
$this->fieldLabel('Password'),
null,
null,
(bool) $this->ID
));
$password->setCanBeEmpty(true);
$fields->replaceField('Locale', new DropdownField (
'Locale',
$this->fieldLabel('Locale'),
i18n::get_existing_translations()
));
$fields->removeByName(static::config()->hidden_fields);
$fields->removeByName('FailedLoginCount');
$this->extend('updateMemberFormFields', $fields);
return $fields;
}
/**
* Returns the {@link RequiredFields} instance for the Member object. This
* Validator is used when saving a {@link CMSProfileController} or added to
* any form responsible for saving a users data.
*
* To customize the required fields, add a {@link DataExtension} to member
* calling the `updateValidator()` method.
*
* @return Member_Validator
*/
public function getValidator() {
$validator = Injector::inst()->create('Member_Validator');
$this->extend('updateValidator', $validator);
return $validator;
}
/**
* Returns the current logged in user
*
* @return Member|null
*/
public static function currentUser() {
$id = Member::currentUserID();
if($id) {
return Member::get()->byId($id);
}
}
/**
* Get the ID of the current logged in user
*
* @return int Returns the ID of the current logged in user or 0.
*/
public static function currentUserID() {
$id = Session::get("loggedInAs");
if(!$id && !self::$_already_tried_to_auto_log_in) {
self::autoLogin();
$id = Session::get("loggedInAs");
}
return is_numeric($id) ? $id : 0;
}
private static $_already_tried_to_auto_log_in = false;
/*
* Generate a random password, with randomiser to kick in if there's no words file on the
* filesystem.
*
* @return string Returns a random password.
*/
public static function create_new_password() {
$words = Config::inst()->get('Security', 'word_list');
if($words && file_exists($words)) {
$words = file($words);
list($usec, $sec) = explode(' ', microtime());
srand($sec + ((float) $usec * 100000));
$word = trim($words[rand(0,sizeof($words)-1)]);
$number = rand(10,999);
return $word . $number;
} else {
$random = rand();
$string = md5($random);
$output = substr($string, 0, 6);
return $output;
}
}
/**
* Event handler called before writing to the database.
*/
public function onBeforeWrite() {
if($this->SetPassword) $this->Password = $this->SetPassword;
// If a member with the same "unique identifier" already exists with a different ID, don't allow merging.
// Note: This does not a full replacement for safeguards in the controller layer (e.g. in a registration form),
// but rather a last line of defense against data inconsistencies.
$identifierField = Member::config()->unique_identifier_field;
if($this->$identifierField) {
// Note: Same logic as Member_Validator class
$filter = array("\"$identifierField\"" => $this->$identifierField);
if($this->ID) {
$filter[] = array('"Member"."ID" <> ?' => $this->ID);
}
$existingRecord = DataObject::get_one('Member', $filter);
if($existingRecord) {
throw new ValidationException(ValidationResult::create(false, _t(
'Member.ValidationIdentifierFailed',
'Can\'t overwrite existing member #{id} with identical identifier ({name} = {value}))',
'Values in brackets show "fieldname = value", usually denoting an existing email address',
array(
'id' => $existingRecord->ID,
'name' => $identifierField,
'value' => $this->$identifierField
)
)));
}
}
// We don't send emails out on dev/tests sites to prevent accidentally spamming users.
// However, if TestMailer is in use this isn't a risk.
if(
(Director::isLive() || Email::mailer() instanceof TestMailer)
&& $this->isChanged('Password')
&& $this->record['Password']
&& $this->config()->notify_password_change
) {
$e = Member_ChangePasswordEmail::create();
$e->populateTemplate($this);
$e->setTo($this->Email);
$e->send();
}
// The test on $this->ID is used for when records are initially created.
// Note that this only works with cleartext passwords, as we can't rehash
// existing passwords.
if((!$this->ID && $this->Password) || $this->isChanged('Password')) {
// Password was changed: encrypt the password according the settings
$encryption_details = Security::encrypt_password(
$this->Password, // this is assumed to be cleartext
$this->Salt,
($this->PasswordEncryption) ?
$this->PasswordEncryption : Security::config()->password_encryption_algorithm,
$this
);
// Overwrite the Password property with the hashed value
$this->Password = $encryption_details['password'];
$this->Salt = $encryption_details['salt'];
$this->PasswordEncryption = $encryption_details['algorithm'];
// If we haven't manually set a password expiry
if(!$this->isChanged('PasswordExpiry')) {
// then set it for us
if(self::config()->password_expiry_days) {
$this->PasswordExpiry = date('Y-m-d', time() + 86400 * self::config()->password_expiry_days);
} else {
$this->PasswordExpiry = null;
}
}
}
// save locale
if(!$this->Locale) {
$this->Locale = i18n::get_locale();
}
parent::onBeforeWrite();
}
public function onAfterWrite() {
parent::onAfterWrite();
if($this->isChanged('Password')) {
MemberPassword::log($this);
}
}
public function onAfterDelete() {
parent::onAfterDelete();
//prevent orphaned records remaining in the DB
$this->deletePasswordLogs();
}
/**
* Delete the MemberPassword objects that are associated to this user
*
* @return self
*/
protected function deletePasswordLogs() {
foreach ($this->LoggedPasswords() as $password) {
$password->delete();
$password->destroy();
}
return $this;
}
/**
* If any admin groups are requested, deny the whole save operation.
*
* @param Array $ids Database IDs of Group records
* @return boolean
*/
public function onChangeGroups($ids) {
// Filter out admin groups to avoid privilege escalation,
// unless the current user is an admin already OR the logged in user is an admin
if(!(Permission::check('ADMIN') || Permission::checkMember($this, 'ADMIN'))) {
$adminGroups = Permission::get_groups_by_permission('ADMIN');
$adminGroupIDs = ($adminGroups) ? $adminGroups->column('ID') : array();
return count(array_intersect($ids, $adminGroupIDs)) == 0;
} else {
return true;
}
}
/**
* Check if the member is in one of the given groups.
*
* @param array|SS_List $groups Collection of {@link Group} DataObjects to check
* @param boolean $strict Only determine direct group membership if set to true (Default: false)
* @return bool Returns TRUE if the member is in one of the given groups, otherwise FALSE.
*/
public function inGroups($groups, $strict = false) {
if($groups) foreach($groups as $group) {
if($this->inGroup($group, $strict)) return true;
}
return false;
}
/**
* Check if the member is in the given group or any parent groups.
*
* @param int|Group|string $group Group instance, Group Code or ID
* @param boolean $strict Only determine direct group membership if set to TRUE (Default: FALSE)
* @return bool Returns TRUE if the member is in the given group, otherwise FALSE.
*/
public function inGroup($group, $strict = false) {
if(is_numeric($group)) {
$groupCheckObj = DataObject::get_by_id('Group', $group);
} elseif(is_string($group)) {
$groupCheckObj = DataObject::get_one('Group', array(
'"Group"."Code"' => $group
));
} elseif($group instanceof Group) {
$groupCheckObj = $group;
} else {
user_error('Member::inGroup(): Wrong format for $group parameter', E_USER_ERROR);
}
if(!$groupCheckObj) return false;
$groupCandidateObjs = ($strict) ? $this->getManyManyComponents("Groups") : $this->Groups();
if($groupCandidateObjs) foreach($groupCandidateObjs as $groupCandidateObj) {
if($groupCandidateObj->ID == $groupCheckObj->ID) return true;
}
return false;
}
/**
* Adds the member to a group. This will create the group if the given
* group code does not return a valid group object.
*
* @param string $groupcode
* @param string Title of the group
*/
public function addToGroupByCode($groupcode, $title = "") {
$group = DataObject::get_one('Group', array(
'"Group"."Code"' => $groupcode
));
if($group) {
$this->Groups()->add($group);
} else {
if(!$title) $title = $groupcode;
$group = new Group();
$group->Code = $groupcode;
$group->Title = $title;
$group->write();
$this->Groups()->add($group);
}
}
/**
* Removes a member from a group.
*
* @param string $groupcode
*/
public function removeFromGroupByCode($groupcode) {
$group = Group::get()->filter(array('Code' => $groupcode))->first();
if($group) {
$this->Groups()->remove($group);
}
}
/**
* @param Array $columns Column names on the Member record to show in {@link getTitle()}.
* @param String $sep Separator
*/
public static function set_title_columns($columns, $sep = ' ') {
if (!is_array($columns)) $columns = array($columns);
self::config()->title_format = array('columns' => $columns, 'sep' => $sep);
}
//------------------- HELPER METHODS -----------------------------------//
/**
* Get the complete name of the member, by default in the format "<Surname>, <FirstName>".
* Falls back to showing either field on its own.
*
* You can overload this getter with {@link set_title_format()}
* and {@link set_title_sql()}.
*
* @return string Returns the first- and surname of the member. If the ID
* of the member is equal 0, only the surname is returned.
*/
public function getTitle() {
$format = $this->config()->title_format;
if ($format) {
$values = array();
foreach($format['columns'] as $col) {
$values[] = $this->getField($col);
}
return join($format['sep'], $values);
}
if($this->getField('ID') === 0)
return $this->getField('Surname');
else{
if($this->getField('Surname') && $this->getField('FirstName')){
return $this->getField('Surname') . ', ' . $this->getField('FirstName');
}elseif($this->getField('Surname')){
return $this->getField('Surname');
}elseif($this->getField('FirstName')){
return $this->getField('FirstName');
}else{
return null;
}
}
}
/**
* Return a SQL CONCAT() fragment suitable for a SELECT statement.
* Useful for custom queries which assume a certain member title format.
*
* @param String $tableName
* @return String SQL
*/
public static function get_title_sql($tableName = 'Member') {
// This should be abstracted to SSDatabase concatOperator or similar.
$op = (DB::get_conn() instanceof MSSQLDatabase) ? " + " : " || ";
$format = self::config()->title_format;
if ($format) {
$columnsWithTablename = array();
foreach($format['columns'] as $column) {
$columnsWithTablename[] = "\"$tableName\".\"$column\"";
}
return "(".join(" $op '".$format['sep']."' $op ", $columnsWithTablename).")";
} else {
return "(\"$tableName\".\"Surname\" $op ' ' $op \"$tableName\".\"FirstName\")";
}
}
/**
* Get the complete name of the member
*
* @return string Returns the first- and surname of the member.
*/
public function getName() {
return ($this->Surname) ? trim($this->FirstName . ' ' . $this->Surname) : $this->FirstName;
}
/**
* Set first- and surname
*
* This method assumes that the last part of the name is the surname, e.g.
* <i>A B C</i> will result in firstname <i>A B</i> and surname <i>C</i>
*
* @param string $name The name
*/
public function setName($name) {
$nameParts = explode(' ', $name);
$this->Surname = array_pop($nameParts);
$this->FirstName = join(' ', $nameParts);
}
/**
* Alias for {@link setName}
*
* @param string $name The name
* @see setName()
*/
public function splitName($name) {
return $this->setName($name);
}
/**
* Override the default getter for DateFormat so the
* default format for the user's locale is used
* if the user has not defined their own.
*
* @return string ISO date format
*/
public function getDateFormat() {
if($this->getField('DateFormat')) {
return $this->getField('DateFormat');
} else {
return Config::inst()->get('i18n', 'date_format');
}
}
/**
* Override the default getter for TimeFormat so the
* default format for the user's locale is used
* if the user has not defined their own.
*
* @return string ISO date format
*/
public function getTimeFormat() {
if($this->getField('TimeFormat')) {
return $this->getField('TimeFormat');
} else {
return Config::inst()->get('i18n', 'time_format');
}
}
//---------------------------------------------------------------------//
/**
* Get a "many-to-many" map that holds for all members their group memberships,
* including any parent groups where membership is implied.
* Use {@link DirectGroups()} to only retrieve the group relations without inheritance.
*
* @todo Push all this logic into Member_GroupSet's getIterator()?
*/
public function Groups() {
$groups = Member_GroupSet::create('Group', 'Group_Members', 'GroupID', 'MemberID');
$groups = $groups->forForeignID($this->ID);
$this->extend('updateGroups', $groups);
return $groups;
}
/**
* @return ManyManyList
*/
public function DirectGroups() {
return $this->getManyManyComponents('Groups');
}
/**
* Get a member SQLMap of members in specific groups
*
* If no $groups is passed, all members will be returned
*
* @param mixed $groups - takes a SS_List, an array or a single Group.ID
* @return SQLMap Returns an SQLMap that returns all Member data.
* @see map()
*/
public static function map_in_groups($groups = null) {
$groupIDList = array();
if($groups instanceof SS_List) {
foreach( $groups as $group ) {
$groupIDList[] = $group->ID;
}
} elseif(is_array($groups)) {
$groupIDList = $groups;
} elseif($groups) {
$groupIDList[] = $groups;
}
// No groups, return all Members
if(!$groupIDList) {
return Member::get()->sort(array('Surname'=>'ASC', 'FirstName'=>'ASC'))->map();
}
$membersList = new ArrayList();
// This is a bit ineffective, but follow the ORM style
foreach(Group::get()->byIDs($groupIDList) as $group) {
$membersList->merge($group->Members());
}
$membersList->removeDuplicates('ID');
return $membersList->map();
}
/**
* Get a map of all members in the groups given that have CMS permissions
*
* If no groups are passed, all groups with CMS permissions will be used.
*
* @param array $groups Groups to consider or NULL to use all groups with
* CMS permissions.
* @return SS_Map Returns a map of all members in the groups given that
* have CMS permissions.
*/
public static function mapInCMSGroups($groups = null) {
if(!$groups || $groups->Count() == 0) {
$perms = array('ADMIN', 'CMS_ACCESS_AssetAdmin');
if(class_exists('CMSMain')) {
$cmsPerms = singleton('CMSMain')->providePermissions();
} else {
$cmsPerms = singleton('LeftAndMain')->providePermissions();
}
if(!empty($cmsPerms)) {
$perms = array_unique(array_merge($perms, array_keys($cmsPerms)));
}
$permsClause = DB::placeholders($perms);
$groups = DataObject::get('Group')
->innerJoin("Permission", '"Permission"."GroupID" = "Group"."ID"')
->where(array(
"\"Permission\".\"Code\" IN ($permsClause)" => $perms
));
}
$groupIDList = array();
if(is_a($groups, 'SS_List')) {
foreach($groups as $group) {
$groupIDList[] = $group->ID;
}
} elseif(is_array($groups)) {
$groupIDList = $groups;
}
$members = Member::get()
->innerJoin("Group_Members", '"Group_Members"."MemberID" = "Member"."ID"')
->innerJoin("Group", '"Group"."ID" = "Group_Members"."GroupID"');
if($groupIDList) {
$groupClause = DB::placeholders($groupIDList);
$members = $members->where(array(
"\"Group\".\"ID\" IN ($groupClause)" => $groupIDList
));
}
return $members->sort('"Member"."Surname", "Member"."FirstName"')->map();
}
/**
* Get the groups in which the member is NOT in
*
* When passed an array of groups, and a component set of groups, this
* function will return the array of groups the member is NOT in.
*
* @param array $groupList An array of group code names.
* @param array $memberGroups A component set of groups (if set to NULL,
* $this->groups() will be used)
* @return array Groups in which the member is NOT in.
*/
public function memberNotInGroups($groupList, $memberGroups = null){
if(!$memberGroups) $memberGroups = $this->Groups();
foreach($memberGroups as $group) {
if(in_array($group->Code, $groupList)) {
$index = array_search($group->Code, $groupList);
unset($groupList[$index]);
}
}
return $groupList;
}
/**
* Return a {@link FieldList} of fields that would appropriate for editing
* this member.
*
* @return FieldList Return a FieldList of fields that would appropriate for
* editing this member.
*/
public function getCMSFields() {
require_once 'Zend/Date.php';
$self = $this;
$this->beforeUpdateCMSFields(function($fields) use ($self) {
$mainFields = $fields->fieldByName("Root")->fieldByName("Main")->Children;
$password = new ConfirmedPasswordField(
'Password',
null,
null,
null,
true // showOnClick
);
$password->setCanBeEmpty(true);
if( ! $self->ID) $password->showOnClick = false;
$mainFields->replaceField('Password', $password);
$mainFields->replaceField('Locale', new DropdownField(
"Locale",
_t('Member.INTERFACELANG', "Interface Language", 'Language of the CMS'),
i18n::get_existing_translations()
));
$mainFields->removeByName($self->config()->hidden_fields);
if( ! $self->config()->lock_out_after_incorrect_logins) {
$mainFields->removeByName('FailedLoginCount');
}
// Groups relation will get us into logical conflicts because
// Members are displayed within group edit form in SecurityAdmin
$fields->removeByName('Groups');
// Members shouldn't be able to directly view/edit logged passwords
$fields->removeByName('LoggedPasswords');
if(Permission::check('EDIT_PERMISSIONS')) {
$groupsMap = array();
foreach(Group::get() as $group) {
// Listboxfield values are escaped, use ASCII char instead of &raquo;
$groupsMap[$group->ID] = $group->getBreadcrumbs(' > ');
}
asort($groupsMap);
$fields->addFieldToTab('Root.Main',
ListboxField::create('DirectGroups', singleton('Group')->i18n_plural_name())
->setMultiple(true)
->setSource($groupsMap)
->setAttribute(
'data-placeholder',
_t('Member.ADDGROUP', 'Add group', 'Placeholder text for a dropdown')
)
);
// Add permission field (readonly to avoid complicated group assignment logic).
// This should only be available for existing records, as new records start
// with no permissions until they have a group assignment anyway.
if($self->ID) {
$permissionsField = new PermissionCheckboxSetField_Readonly(
'Permissions',
false,
'Permission',
'GroupID',
// we don't want parent relationships, they're automatically resolved in the field
$self->getManyManyComponents('Groups')
);
$fields->findOrMakeTab('Root.Permissions', singleton('Permission')->i18n_plural_name());
$fields->addFieldToTab('Root.Permissions', $permissionsField);
}
}
$permissionsTab = $fields->fieldByName("Root")->fieldByName('Permissions');
if($permissionsTab) $permissionsTab->addExtraClass('readonly');
$defaultDateFormat = Zend_Locale_Format::getDateFormat(new Zend_Locale($self->Locale));
$dateFormatMap = array(
'MMM d, yyyy' => Zend_Date::now()->toString('MMM d, yyyy'),
'yyyy/MM/dd' => Zend_Date::now()->toString('yyyy/MM/dd'),
'MM/dd/yyyy' => Zend_Date::now()->toString('MM/dd/yyyy'),
'dd/MM/yyyy' => Zend_Date::now()->toString('dd/MM/yyyy'),
);
$dateFormatMap[$defaultDateFormat] = Zend_Date::now()->toString($defaultDateFormat)
. sprintf(' (%s)', _t('Member.DefaultDateTime', 'default'));
$mainFields->push(
$dateFormatField = new MemberDatetimeOptionsetField(
'DateFormat',
$self->fieldLabel('DateFormat'),
$dateFormatMap
)
);
$dateFormatField->setValue($self->DateFormat);
$defaultTimeFormat = Zend_Locale_Format::getTimeFormat(new Zend_Locale($self->Locale));
$timeFormatMap = array(
'h:mm a' => Zend_Date::now()->toString('h:mm a'),
'H:mm' => Zend_Date::now()->toString('H:mm'),
);
$timeFormatMap[$defaultTimeFormat] = Zend_Date::now()->toString($defaultTimeFormat)
. sprintf(' (%s)', _t('Member.DefaultDateTime', 'default'));
$mainFields->push(
$timeFormatField = new MemberDatetimeOptionsetField(
'TimeFormat',
$self->fieldLabel('TimeFormat'),
$timeFormatMap
)
);
$timeFormatField->setValue($self->TimeFormat);
});
return parent::getCMSFields();
}
/**
*
* @param boolean $includerelations a boolean value to indicate if the labels returned include relation fields
*
*/
public function fieldLabels($includerelations = true) {
$labels = parent::fieldLabels($includerelations);
$labels['FirstName'] = _t('Member.FIRSTNAME', 'First Name');
$labels['Surname'] = _t('Member.SURNAME', 'Surname');
$labels['Email'] = _t('Member.EMAIL', 'Email');
$labels['Password'] = _t('Member.db_Password', 'Password');
$labels['PasswordExpiry'] = _t('Member.db_PasswordExpiry', 'Password Expiry Date', 'Password expiry date');
$labels['LockedOutUntil'] = _t('Member.db_LockedOutUntil', 'Locked out until', 'Security related date');
$labels['Locale'] = _t('Member.db_Locale', 'Interface Locale');
$labels['DateFormat'] = _t('Member.DATEFORMAT', 'Date format');
$labels['TimeFormat'] = _t('Member.TIMEFORMAT', 'Time format');
if($includerelations){
$labels['Groups'] = _t('Member.belongs_many_many_Groups', 'Groups',
'Security Groups this member belongs to');
}
return $labels;
}
/**
* Users can view their own record.
* Otherwise they'll need ADMIN or CMS_ACCESS_SecurityAdmin permissions.
* This is likely to be customized for social sites etc. with a looser permission model.
*/
public function canView($member = null) {
if(!$member || !(is_a($member, 'Member')) || is_numeric($member)) $member = Member::currentUser();
// extended access checks
$results = $this->extend('canView', $member);
if($results && is_array($results)) {
if(!min($results)) return false;
else return true;
}
// members can usually edit their own record
if($member && $this->ID == $member->ID) return true;
if(
Permission::checkMember($member, 'ADMIN')
|| Permission::checkMember($member, 'CMS_ACCESS_SecurityAdmin')
) {
return true;
}
return false;
}
/**
* Users can edit their own record.
* Otherwise they'll need ADMIN or CMS_ACCESS_SecurityAdmin permissions
*/
public function canEdit($member = null) {
if(!$member || !(is_a($member, 'Member')) || is_numeric($member)) $member = Member::currentUser();
// extended access checks
$results = $this->extend('canEdit', $member);
if($results && is_array($results)) {
if(!min($results)) return false;
else return true;
}
// No member found
if(!($member && $member->exists())) return false;
// If the requesting member is not an admin, but has access to manage members,
// they still can't edit other members with ADMIN permission.
// This is a bit weak, strictly speaking they shouldn't be allowed to
// perform any action that could change the password on a member
// with "higher" permissions than himself, but thats hard to determine.
if(!Permission::checkMember($member, 'ADMIN') && Permission::checkMember($this, 'ADMIN')) return false;
return $this->canView($member);
}
/**
* Users can edit their own record.
* Otherwise they'll need ADMIN or CMS_ACCESS_SecurityAdmin permissions
*/
public function canDelete($member = null) {
if(!$member || !(is_a($member, 'Member')) || is_numeric($member)) $member = Member::currentUser();
// extended access checks
$results = $this->extend('canDelete', $member);
if($results && is_array($results)) {
if(!min($results)) return false;
else return true;
}
// No member found
if(!($member && $member->exists())) return false;
// Members are not allowed to remove themselves,
// since it would create inconsistencies in the admin UIs.
if($this->ID && $member->ID == $this->ID) return false;
return $this->canEdit($member);
}
/**
* Validate this member object.
*/
protected function validate() {
$valid = parent::validate();
if(!$this->ID || $this->isChanged('Password')) {
if($this->Password && self::$password_validator) {
$valid->combineAnd(self::$password_validator->validate($this->Password, $this));
}
}
if((!$this->ID && $this->SetPassword) || $this->isChanged('SetPassword')) {
if($this->SetPassword && self::$password_validator) {
$valid->combineAnd(self::$password_validator->validate($this->SetPassword, $this));
}
}
return $valid;
}
/**
* Change password. This will cause rehashing according to
* the `PasswordEncryption` property.
*
* @param String $password Cleartext password
*/
public function changePassword($password) {
$this->Password = $password;
$valid = $this->validate();
if($valid->valid()) {
$this->AutoLoginHash = null;
$this->write();
}
return $valid;
}
/**
* Tell this member that someone made a failed attempt at logging in as them.
* This can be used to lock the user out temporarily if too many failed attempts are made.
*/
public function registerFailedLogin() {
if(self::config()->lock_out_after_incorrect_logins) {
// Keep a tally of the number of failed log-ins so that we can lock people out
$this->FailedLoginCount = $this->FailedLoginCount + 1;
if($this->FailedLoginCount >= self::config()->lock_out_after_incorrect_logins) {
$lockoutMins = self::config()->lock_out_delay_mins;
$this->LockedOutUntil = date('Y-m-d H:i:s', time() + $lockoutMins*60);
$this->FailedLoginCount = 0;
}
}
$this->extend('registerFailedLogin');
$this->write();
}
/**
* Tell this member that a successful login has been made
*/
public function registerSuccessfulLogin() {
if(self::config()->lock_out_after_incorrect_logins) {
// Forgive all past login failures
$this->FailedLoginCount = 0;
$this->write();
}
}
/**
* Get the HtmlEditorConfig for this user to be used in the CMS.
* This is set by the group. If multiple configurations are set,
* the one with the highest priority wins.
*
* @return string
*/
public function getHtmlEditorConfigForCMS() {
$currentName = '';
$currentPriority = 0;
foreach($this->Groups() as $group) {
$configName = $group->HtmlEditorConfig;
if($configName) {
$config = HtmlEditorConfig::get($group->HtmlEditorConfig);
if($config && $config->getOption('priority') > $currentPriority) {
$currentName = $configName;
$currentPriority = $config->getOption('priority');
}
}
}
// If can't find a suitable editor, just default to cms
return $currentName ? $currentName : 'cms';
}
public static function get_template_global_variables() {
return array(
'CurrentMember' => 'currentUser',
'currentUser',
);
}
}
/**
* Represents a set of Groups attached to a member.
* Handles the hierarchy logic.
* @package framework
* @subpackage security
*/
class Member_GroupSet extends ManyManyList {
protected function linkJoinTable() {
// Do not join the table directly
if($this->extraFields) {
user_error('Member_GroupSet does not support many_many_extraFields', E_USER_ERROR);
}
}
/**
* Link this group set to a specific member.
*
* Recursively selects all groups applied to this member, as well as any
* parent groups of any applied groups
*
* @param array|integer $id (optional) An ID or an array of IDs - if not provided, will use the current
* ids as per getForeignID
* @return array Condition In array(SQL => parameters format)
*/
public function foreignIDFilter($id = null) {
if ($id === null) $id = $this->getForeignID();
// Find directly applied groups
$manyManyFilter = parent::foreignIDFilter($id);
$query = new SQLQuery('"Group_Members"."GroupID"', '"Group_Members"', $manyManyFilter);
$groupIDs = $query->execute()->column();
// Get all ancestors, iteratively merging these into the master set
$allGroupIDs = array();
while($groupIDs) {
$allGroupIDs = array_merge($allGroupIDs, $groupIDs);
$groupIDs = DataObject::get("Group")->byIDs($groupIDs)->column("ParentID");
$groupIDs = array_filter($groupIDs);
}
// Add a filter to this DataList
if(!empty($allGroupIDs)) {
$allGroupIDsPlaceholders = DB::placeholders($allGroupIDs);
return array("\"Group\".\"ID\" IN ($allGroupIDsPlaceholders)" => $allGroupIDs);
} else {
return array('"Group"."ID"' => 0);
}
}
public function foreignIDWriteFilter($id = null) {
// Use the ManyManyList::foreignIDFilter rather than the one
// in this class, otherwise we end up selecting all inherited groups
return parent::foreignIDFilter($id);
}
}
/**
* Class used as template to send an email saying that the password has been
* changed.
*
* @package framework
* @subpackage security
*/
class Member_ChangePasswordEmail extends Email {
protected $from = ''; // setting a blank from address uses the site's default administrator email
protected $subject = '';
protected $ss_template = 'ChangePasswordEmail';
public function __construct() {
parent::__construct();
$this->subject = _t('Member.SUBJECTPASSWORDCHANGED', "Your password has been changed", 'Email subject');
}
}
/**
* Class used as template to send the forgot password email
*
* @package framework
* @subpackage security
*/
class Member_ForgotPasswordEmail extends Email {
protected $from = ''; // setting a blank from address uses the site's default administrator email
protected $subject = '';
protected $ss_template = 'ForgotPasswordEmail';
public function __construct() {
parent::__construct();
$this->subject = _t('Member.SUBJECTPASSWORDRESET', "Your password reset link", 'Email subject');
}
}
/**
* Member Validator
*
* Custom validation for the Member object can be achieved either through an
* {@link DataExtension} on the Member object or, by specifying a subclass of
* {@link Member_Validator} through the {@link Injector} API.
*
* {@see Member::getValidator()}
*
* @package framework
* @subpackage security
*/
class Member_Validator extends RequiredFields {
protected $customRequired = array(
'FirstName',
'Email'
);
/**
* Constructor
*/
public function __construct() {
$required = func_get_args();
if(isset($required[0]) && is_array($required[0])) {
$required = $required[0];
}
$required = array_merge($required, $this->customRequired);
parent::__construct($required);
}
/**
* Check if the submitted member data is valid (server-side)
*
* Check if a member with that email doesn't already exist, or if it does
* that it is this member.
*
* @param array $data Submitted data
* @return bool Returns TRUE if the submitted data is valid, otherwise
* FALSE.
*/
public function php($data) {
$valid = parent::php($data);
$identifierField = Member::config()->unique_identifier_field;
$member = DataObject::get_one('Member', array(
"\"$identifierField\"" => $data[$identifierField]
));
// if we are in a complex table field popup, use ctf[childID], else use ID
if(isset($_REQUEST['ctf']['childID'])) {
$id = $_REQUEST['ctf']['childID'];
} elseif(isset($_REQUEST['ID'])) {
$id = $_REQUEST['ID'];
} else {
$id = null;
}
if($id && is_object($member) && $member->ID != $id) {
$uniqueField = $this->form->Fields()->dataFieldByName($identifierField);
$this->validationError(
$uniqueField->id(),
_t(
'Member.VALIDATIONMEMBEREXISTS',
'A member already exists with the same %s',
array('identifier' => strtolower($identifierField))
),
'required'
);
$valid = false;
}
// Execute the validators on the extensions
if($this->extension_instances) {
foreach($this->extension_instances as $extension) {
if(method_exists($extension, 'hasMethod') && $extension->hasMethod('updatePHP')) {
$valid &= $extension->updatePHP($data, $this->form);
}
}
}
return $valid;
}
}
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