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<?php
/**
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
*/
namespace Piwik;
use Exception;
use Piwik\Container\StaticContainer;
use Piwik\Period\Day;
use Piwik\Period\Month;
use Piwik\Period\Range;
use Piwik\Period\Week;
use Piwik\Period\Year;
use Piwik\Plugins\UsersManager\API as APIUsersManager;
use Piwik\Plugins\UsersManager\Model;
use Piwik\Translation\Translator;
/**
* Main piwik helper class.
*
* Contains helper methods for a variety of common tasks. Plugin developers are
* encouraged to reuse these methods as much as possible.
*/
class Piwik
{
/**
* Piwik periods
* @var array
*/
public static $idPeriods = array('day' => Day::PERIOD_ID, 'week' => Week::PERIOD_ID, 'month' => Month::PERIOD_ID, 'year' => Year::PERIOD_ID, 'range' => Range::PERIOD_ID);
/**
* The idGoal query parameter value for the special 'abandoned carts' goal.
*
* @api
*/
const LABEL_ID_GOAL_IS_ECOMMERCE_CART = 'ecommerceAbandonedCart';
/**
* The idGoal query parameter value for the special 'ecommerce' goal.
*
* @api
*/
const LABEL_ID_GOAL_IS_ECOMMERCE_ORDER = 'ecommerceOrder';
/**
* Trigger E_USER_ERROR with optional message
*
* @param string $message
*/
public static function error($message = '')
{
trigger_error($message, E_USER_ERROR);
}
/**
* Display the message in a nice red font with a nice icon
* ... and dies
*
* @param string $message
*/
public static function exitWithErrorMessage($message)
{
\Piwik\Common::sendHeader('Content-Type: text/html; charset=utf-8');
$message = str_replace("\n", "<br/>", $message);
$output = "<html><body>" . "<style>a{color:red;}</style>\n" . "<div style='color:red;font-size:120%; width:100%;margin: 30px;'>" . " <div style='width: 50px; float: left;'><img src='plugins/Morpheus/images/error_medium.png' /></div>" . " <div style='margin-left: 70px; min-width: 950px;'>" . $message . " </div>" . " </div>" . "</div>" . "</body></html>";
print $output;
exit;
}
/**
* Computes the division of i1 by i2. If either i1 or i2 are not number, or if i2 has a value of zero
* we return 0 to avoid the division by zero.
*
* @param number $i1
* @param number $i2
* @return number The result of the division or zero
*/
public static function secureDiv($i1, $i2)
{
if (is_numeric($i1) && is_numeric($i2) && floatval($i2) != 0) {
return $i1 / $i2;
}
return 0;
}
/**
* Safely compute a percentage. Return 0 to avoid division by zero.
*
* @param number $dividend
* @param number $divisor
* @param int $precision
* @return number
*/
public static function getPercentageSafe($dividend, $divisor, $precision = 0)
{
return self::getQuotientSafe(100 * $dividend, $divisor, $precision);
}
/**
* Safely compute a ratio. Returns 0 if divisor is 0 (to avoid division by 0 error).
*
* @param number $dividend
* @param number $divisor
* @param int $precision
* @return number
*/
public static function getQuotientSafe($dividend, $divisor, $precision = 0)
{
if ($divisor == 0) {
return 0;
}
if ($dividend == 0 || $dividend === '-') {
$dividend = 0;
}
if (!is_numeric($dividend) || !is_numeric($divisor)) {
throw new \Exception(sprintf('Trying to round unsupported operands for dividend %s (%s) and divisor %s (%s)', $dividend, gettype($dividend), $divisor, gettype($divisor)));
}
return round($dividend / $divisor, $precision);
}
/**
* Generate a title for image tags
*
* @return string
*/
public static function getRandomTitle()
{
static $titles = array('Web analytics', 'Open analytics platform', 'Real Time Web Analytics', 'Analytics', 'Real Time Analytics', 'Analytics in Real time', 'Analytics Platform', 'Data Platform');
$id = abs(intval(md5(\Piwik\Url::getCurrentHost())));
$title = $titles[$id % count($titles)];
return $title;
}
/*
* Access
*/
/**
* Returns the current user's email address.
*
* @return string
* @api
*/
public static function getCurrentUserEmail()
{
$user = APIUsersManager::getInstance()->getUser(\Piwik\Piwik::getCurrentUserLogin());
return $user['email'] ?? '';
}
public static function getCurrentUserCreationDate()
{
$user = APIUsersManager::getInstance()->getUser(\Piwik\Piwik::getCurrentUserLogin());
return $user['date_registered'] ?? '';
}
/**
* Returns the current user's Last Seen.
*
* @return string
* @api
*/
public static function getCurrentUserLastSeen()
{
$user = APIUsersManager::getInstance()->getUser(\Piwik\Piwik::getCurrentUserLogin());
return $user['last_seen'] ?? '';
}
/**
* Returns the email addresses configured as contact. If none is configured the mail addresses of all super users will be returned instead.
*
* @return array
*/
public static function getContactEmailAddresses() : array
{
$contactAddresses = trim(\Piwik\Config::getInstance()->General['contact_email_address']);
if (empty($contactAddresses)) {
return self::getAllSuperUserAccessEmailAddresses();
}
$contactAddresses = explode(',', $contactAddresses);
return array_map('trim', $contactAddresses);
}
/**
* Get a list of all email addresses having Super User access.
*
* @return array
*/
public static function getAllSuperUserAccessEmailAddresses()
{
$emails = array();
try {
$superUsers = APIUsersManager::getInstance()->getUsersHavingSuperUserAccess();
} catch (\Exception $e) {
return $emails;
}
foreach ($superUsers as $superUser) {
$emails[$superUser['login']] = $superUser['email'];
}
return $emails;
}
/**
* Returns the current user's username.
*
* @return string
* @api
*/
public static function getCurrentUserLogin()
{
$login = \Piwik\Access::getInstance()->getLogin();
if (empty($login)) {
return 'anonymous';
}
return $login;
}
/**
* Returns the current user's token auth.
*
* @return string
* @api
*/
public static function getCurrentUserTokenAuth()
{
return \Piwik\Access::getInstance()->getTokenAuth();
}
/**
* Returns `true` if the current user is either the Super User or the user specified by
* `$theUser`.
*
* @param string $theUser A username.
* @return bool
* @api
*/
public static function hasUserSuperUserAccessOrIsTheUser($theUser)
{
try {
self::checkUserHasSuperUserAccessOrIsTheUser($theUser);
return true;
} catch (Exception $e) {
return false;
}
}
/**
* Returns if the given user needs to confirm his password in UI and for certain API methods
*
* @param string $login
* @return bool
*/
public static function doesUserRequirePasswordConfirmation(string $login)
{
$requiresPasswordConfirmation = true;
/**
* Triggered to check if a password confirmation for a user is required.
*
* This event can be used in custom login plugins to skip the password confirmation checks for certain users,
* where e.g. no password would be available.
*
* Attention: Use this event wisely. Disabling password confirmation decreases the security.
*
* @param bool $requiresPasswordConfirmation Indicates if the password should be checked or not
* @param string $login Login of a user the password should be confirmed for
*/
\Piwik\Piwik::postEvent('Login.userRequiresPasswordConfirmation', [&$requiresPasswordConfirmation, $login]);
return $requiresPasswordConfirmation;
}
/**
* Check that the current user is either the specified user or the superuser.
*
* @param string $theUser A username.
* @throws NoAccessException If the user is neither the Super User nor the user `$theUser`.
* @api
*/
public static function checkUserHasSuperUserAccessOrIsTheUser($theUser)
{
try {
if (\Piwik\Piwik::getCurrentUserLogin() !== $theUser) {
// or to the Super User
\Piwik\Piwik::checkUserHasSuperUserAccess();
}
} catch (\Piwik\NoAccessException $e) {
throw new \Piwik\NoAccessException(\Piwik\Piwik::translate('General_ExceptionCheckUserHasSuperUserAccessOrIsTheUser', array($theUser)));
}
}
/**
* Request a token auth to authenticate in a request.
*
* Note: During one request the token is only being requested once and used throughout the request. So you want to make
* sure the token is valid for enough time for the whole request to finish.
*
* @param string $reason some short string/text explaining the reason for the token generation, eg "CliMultiAsyncHttpArchiving"
* @param int $validForHours For how many hours the token should be valid. Should not be valid for more than 14 days.
* @return mixed
*/
public static function requestTemporarySystemAuthToken($reason, $validForHours)
{
static $token = array();
if (isset($token[$reason])) {
// note: For now we do not increase the expire time when it is already requested
return $token[$reason];
}
$twoWeeksInHours = 14 * 24;
if ($validForHours > $twoWeeksInHours) {
throw new Exception('The token cannot be valid for so many hours: ' . $validForHours);
}
$model = new Model();
$users = $model->getUsersHavingSuperUserAccess();
if (!empty($users)) {
$user = reset($users);
$expireDate = \Piwik\Date::now()->addHour($validForHours)->getDatetime();
$token[$reason] = $model->generateRandomTokenAuth();
$model->addTokenAuth($user['login'], $token[$reason], 'System generated ' . $reason, \Piwik\Date::now()->getDatetime(), $expireDate, true);
return $token[$reason];
}
}
/**
* Check whether the given user has superuser access.
*
* @param string $theUser A username.
* @return bool
* @api
*/
public static function hasTheUserSuperUserAccess($theUser)
{
if (empty($theUser)) {
return false;
}
if (\Piwik\Piwik::getCurrentUserLogin() === $theUser && \Piwik\Piwik::hasUserSuperUserAccess()) {
return true;
}
try {
$superUsers = APIUsersManager::getInstance()->getUsersHavingSuperUserAccess();
} catch (\Exception $e) {
return false;
}
foreach ($superUsers as $superUser) {
if ($theUser === $superUser['login']) {
return true;
}
}
return false;
}
/**
* Returns true if the current user has Super User access.
*
* @return bool
* @api
*/
public static function hasUserSuperUserAccess()
{
try {
$hasAccess = \Piwik\Access::getInstance()->hasSuperUserAccess();
return $hasAccess;
} catch (Exception $e) {
return false;
}
}
/**
* Returns true if the current user is the special **anonymous** user or not.
*
* @return bool
* @api
*/
public static function isUserIsAnonymous()
{
$currentUserLogin = \Piwik\Piwik::getCurrentUserLogin();
$isSuperUser = self::hasUserSuperUserAccess();
return !$isSuperUser && $currentUserLogin && strtolower($currentUserLogin) == 'anonymous';
}
/**
* Checks that the user is not the anonymous user.
*
* @throws NoAccessException if the current user is the anonymous user.
* @api
*/
public static function checkUserIsNotAnonymous()
{
\Piwik\Access::getInstance()->checkUserIsNotAnonymous();
}
/**
* Check that the current user has superuser access.
*
* @throws Exception if the current user is not the superuser.
* @api
*/
public static function checkUserHasSuperUserAccess()
{
\Piwik\Access::getInstance()->checkUserHasSuperUserAccess();
}
/**
* Returns `true` if the user has admin access to the requested sites, `false` if otherwise.
*
* @param int|array $idSites The list of site IDs to check access for.
* @return bool
* @api
*/
public static function isUserHasAdminAccess($idSites)
{
try {
self::checkUserHasAdminAccess($idSites);
return true;
} catch (Exception $e) {
return false;
}
}
/**
* Checks that the current user has admin access to the requested list of sites.
*
* @param int|array $idSites One or more site IDs to check access for.
* @throws Exception If user doesn't have admin access.
* @api
*/
public static function checkUserHasAdminAccess($idSites)
{
\Piwik\Access::getInstance()->checkUserHasAdminAccess($idSites);
}
/**
* Returns `true` if the current user has admin access to at least one site.
*
* @return bool
* @api
*/
public static function isUserHasSomeAdminAccess()
{
return \Piwik\Access::getInstance()->isUserHasSomeAdminAccess();
}
/**
* Checks that the current user has write access to at least one site.
*
* @throws Exception if user doesn't have write access to any site.
* @api
*/
public static function checkUserHasSomeWriteAccess()
{
\Piwik\Access::getInstance()->checkUserHasSomeWriteAccess();
}
/**
* Returns `true` if the current user has write access to at least one site.
*
* @return bool
* @api
*/
public static function isUserHasSomeWriteAccess()
{
return \Piwik\Access::getInstance()->isUserHasSomeWriteAccess();
}
/**
* Checks whether the user has the given capability or not.
* @param array $idSites
* @param string $capability
* @throws NoAccessException Thrown if the user does not have the given capability
*/
public static function checkUserHasCapability($idSites, $capability)
{
\Piwik\Access::getInstance()->checkUserHasCapability($idSites, $capability);
}
/**
* Returns `true` if the current user has the given capability for the given sites.
*
* @return bool
* @api
*/
public static function isUserHasCapability($idSites, $capability)
{
try {
self::checkUserHasCapability($idSites, $capability);
return true;
} catch (Exception $e) {
return false;
}
}
/**
* Checks that the current user has admin access to at least one site.
*
* @throws Exception if user doesn't have admin access to any site.
* @api
*/
public static function checkUserHasSomeAdminAccess()
{
\Piwik\Access::getInstance()->checkUserHasSomeAdminAccess();
}
/**
* Returns `true` if the user has view access to the requested list of sites.
*
* @param int|array $idSites One or more site IDs to check access for.
* @return bool
* @api
*/
public static function isUserHasViewAccess($idSites)
{
try {
self::checkUserHasViewAccess($idSites);
return true;
} catch (Exception $e) {
return false;
}
}
/**
* Returns `true` if the user has write access to the requested list of sites.
*
* @param int|array $idSites One or more site IDs to check access for.
* @return bool
* @api
*/
public static function isUserHasWriteAccess($idSites)
{
try {
self::checkUserHasWriteAccess($idSites);
return true;
} catch (Exception $e) {
return false;
}
}
/**
* Checks that the current user has view access to the requested list of sites
*
* @param int|array $idSites The list of site IDs to check access for.
* @throws Exception if the current user does not have view access to every site in the list.
* @api
*/
public static function checkUserHasViewAccess($idSites)
{
\Piwik\Access::getInstance()->checkUserHasViewAccess($idSites);
}
/**
* Checks that the current user has write access to the requested list of sites
*
* @param int|array $idSites The list of site IDs to check access for.
* @throws Exception if the current user does not have write access to every site in the list.
* @api
*/
public static function checkUserHasWriteAccess($idSites)
{
\Piwik\Access::getInstance()->checkUserHasWriteAccess($idSites);
}
/**
* Returns `true` if the current user has view access to at least one site.
*
* @return bool
* @api
*/
public static function isUserHasSomeViewAccess()
{
try {
self::checkUserHasSomeViewAccess();
return true;
} catch (Exception $e) {
return false;
}
}
/**
* Checks that the current user has view access to at least one site.
*
* @throws Exception if user doesn't have view access to any site.
* @api
*/
public static function checkUserHasSomeViewAccess()
{
\Piwik\Access::getInstance()->checkUserHasSomeViewAccess();
}
/*
* Current module, action, plugin
*/
/**
* Returns the name of the Login plugin currently being used.
* Must be used since it is not allowed to hardcode 'Login' in URLs
* in case another Login plugin is being used.
*
* @return string
* @api
*/
public static function getLoginPluginName()
{
return StaticContainer::get('Piwik\\Auth')->getName();
}
/**
* Returns the plugin currently being used to display the page
*
* @return Plugin
*/
public static function getCurrentPlugin()
{
return \Piwik\Plugin\Manager::getInstance()->getLoadedPlugin(\Piwik\Piwik::getModule());
}
/**
* Returns the current module read from the URL (eg. 'API', 'DevicesDetection', etc.)
*
* @return string
*/
public static function getModule()
{
return \Piwik\Common::getRequestVar('module', '', 'string');
}
/**
* Returns the current action read from the URL
*
* @return string
*/
public static function getAction()
{
return \Piwik\Common::getRequestVar('action', '', 'string');
}
/**
* Helper method used in API function to introduce array elements in API parameters.
* Array elements can be passed by comma separated values, or using the notation
* array[]=value1&array[]=value2 in the URL.
* This function will handle both cases and return the array.
*
* @param array|string $columns
* @return array
*/
public static function getArrayFromApiParameter($columns, $unique = true)
{
if (empty($columns)) {
return array();
}
if (is_array($columns)) {
return $columns;
}
$array = explode(',', $columns);
if ($unique) {
$array = array_unique($array);
}
return $array;
}
/**
* Redirects the current request to a new module and action.
*
* @param string $newModule The target module, eg, `'UserCountry'`.
* @param string $newAction The target controller action, eg, `'index'`.
* @param array $parameters The query parameter values to modify before redirecting.
* @api
*/
public static function redirectToModule($newModule, $newAction = '', $parameters = array())
{
$newUrl = 'index.php' . \Piwik\Url::getCurrentQueryStringWithParametersModified(array('module' => $newModule, 'action' => $newAction) + $parameters);
\Piwik\Url::redirectToUrl($newUrl);
}
/*
* User input validation
*/
/**
* Returns `true` if supplied the email address is a valid.
*
* @param string $emailAddress
* @return bool
* @api
*/
public static function isValidEmailString($emailAddress)
{
return filter_var($emailAddress, FILTER_VALIDATE_EMAIL) !== false;
}
/**
* Returns `true` if the login is valid.
*
* _Warning: does not check if the login already exists! You must use UsersManager_API->userExists as well._
*
* @param string $userLogin
* @throws Exception
* @return bool
*/
public static function checkValidLoginString($userLogin)
{
if (!\Piwik\SettingsPiwik::isUserCredentialsSanityCheckEnabled() && !empty($userLogin)) {
return;
}
$loginMinimumLength = 2;
$loginMaximumLength = 100;
$l = strlen($userLogin);
if (!($l >= $loginMinimumLength && $l <= $loginMaximumLength && preg_match('/^[A-Za-zÄäÖöÜüß0-9_.@+-]*$/D', $userLogin) > 0)) {
throw new Exception(\Piwik\Piwik::translate('UsersManager_ExceptionInvalidLoginFormat', array($loginMinimumLength, $loginMaximumLength)));
}
}
/**
* Utility function that checks if an object type is in a set of types.
*
* @param mixed $o
* @param array $types List of class names that $o is expected to be one of.
* @throws Exception if $o is not an instance of the types contained in $types.
*/
public static function checkObjectTypeIs($o, $types)
{
foreach ($types as $type) {
if ($o instanceof $type) {
return;
}
}
$oType = is_object($o) ? get_class($o) : gettype($o);
throw new Exception("Invalid variable type '{$oType}', expected one of following: " . implode(', ', $types));
}
/**
* Returns true if an array is an associative array, false if otherwise.
*
* This method determines if an array is associative by checking that the
* first element's key is 0, and that each successive element's key is
* one greater than the last.
*
* @param array $array
* @return bool
*/
public static function isAssociativeArray($array)
{
reset($array);
if (!is_numeric(key($array)) || key($array) != 0) {
// first key must be 0
return true;
}
// check that each key is == next key - 1 w/o actually indexing the array
while (true) {
$current = key($array);
next($array);
$next = key($array);
if ($next === null) {
break;
} elseif ($current + 1 != $next) {
return true;
}
}
return false;
}
public static function isMultiDimensionalArray($array)
{
$first = reset($array);
foreach ($array as $first) {
if (is_array($first)) {
// Yes, this is a multi dim array
return true;
}
}
return false;
}
/**
* Returns the class name of an object without its namespace.
*
* @param mixed|string $object
* @return string
*/
public static function getUnnamespacedClassName($object)
{
$className = is_string($object) ? $object : get_class($object);
$parts = explode('\\', $className);
return end($parts);
}
/**
* Post an event to Piwik's event dispatcher which will execute the event's observers.
*
* @param string $eventName The event name.
* @param array $params The parameter array to forward to observer callbacks.
* @param bool $pending If true, plugins that are loaded after this event is fired will
* have their observers for this event executed.
* @param array|null $plugins The list of plugins to execute observers for. If null, all
* plugin observers will be executed.
* @api
*/
public static function postEvent($eventName, $params = array(), $pending = false, $plugins = null)
{
\Piwik\EventDispatcher::getInstance()->postEvent($eventName, $params, $pending, $plugins);
}
/**
* Register an observer to an event.
*
* **_Note: Observers should normally be defined in plugin objects. It is unlikely that you will
* need to use this function._**
*
* @param string $eventName The event name.
* @param callable|array $function The observer.
* @api
*/
public static function addAction($eventName, $function)
{
\Piwik\EventDispatcher::getInstance()->addObserver($eventName, $function);
}
/**
* Posts an event if we are currently running tests. Whether we are running tests is
* determined by looking for the PIWIK_TEST_MODE constant.
*/
public static function postTestEvent($eventName, $params = array(), $pending = false, $plugins = null)
{
if (defined('PIWIK_TEST_MODE')) {
\Piwik\Piwik::postEvent($eventName, $params, $pending, $plugins);
}
}
/**
* Returns an internationalized string using a translation token. If a translation
* cannot be found for the token, the token is returned.
*
* @param string $translationId Translation ID, eg, `'General_Date'`.
* @param array|string|int $args `sprintf` arguments to be applied to the internationalized
* string.
* @param string|null $language Optionally force the language.
* @return string The translated string or `$translationId`.
* @api
*/
public static function translate($translationId, $args = array(), $language = null)
{
/** @var Translator $translator */
$translator = StaticContainer::get('Piwik\\Translation\\Translator');
return $translator->translate($translationId, $args, $language);
}
/**
* Returns the period provided in the current request.
* If no $default is provided, this method will throw an Exception if `period` can't be found in the request
*
* @param string|null $default default value to use
* @throws Exception
* @return string
* @api
*/
public static function getPeriod($default = null)
{
return \Piwik\Common::getRequestVar('period', $default, 'string');
}
/**
* Returns the date provided in the current request.
* If no $default is provided, this method will throw an Exception if `date` can't be found in the request
*
* @param string|null $default default value to use
* @throws Exception
* @return string
* @api
*/
public static function getDate($default = null)
{
return \Piwik\Common::getRequestVar('date', $default, 'string');
}
/**
* Returns the earliest date to rearchive provided in the config.
* @return Date|null
*/
public static function getEarliestDateToRearchive()
{
$lastNMonthsToInvalidate = \Piwik\Config::getInstance()->General['rearchive_reports_in_past_last_n_months'];
if (empty($lastNMonthsToInvalidate)) {
return null;
}
if (!is_numeric($lastNMonthsToInvalidate)) {
$lastNMonthsToInvalidate = (int) str_replace('last', '', $lastNMonthsToInvalidate);
if (empty($lastNMonthsToInvalidate)) {
return null;
}
}
if ($lastNMonthsToInvalidate <= 0) {
return null;
}
return \Piwik\Date::yesterday()->subMonth($lastNMonthsToInvalidate)->setDay(1);
}
/**
* Given the fully qualified name of a class located within a Matomo plugin,
* returns the name of the plugin.
*
* Uses the fact that Matomo plugins have namespaces like Piwik\Plugins\MyPlugin.
*
* @param string $className the name of a class located within a Matomo plugin
* @return string the plugin name
*/
public static function getPluginNameOfMatomoClass(string $className) : string
{
$parts = explode('\\', $className);
$parts = array_filter($parts);
$plugin = $parts[2] ?? '';
return $plugin;
}
}