/**
* Checks if directories are writable and create them if they do not exist.
*
* @param array $directoriesToCheck array of directories to check - if not given default Piwik directories that needs write permission are checked
* @return array directory name => true|false (is writable)
*/
public static function checkDirectoriesWritable($directoriesToCheck)
{
$resultCheck = array();
foreach ($directoriesToCheck as $directoryToCheck) {
if (!preg_match('/^' . preg_quote(PIWIK_USER_PATH, '/') . '/', $directoryToCheck)) {
$directoryToCheck = PIWIK_USER_PATH . $directoryToCheck;
}
if (strpos($directoryToCheck, '/tmp/') !== false) {
$directoryToCheck = SettingsPiwik::rewriteTmpPathWithInstanceId($directoryToCheck);
}
Filesystem::mkdir($directoryToCheck);
$directory = Filesystem::realpath($directoryToCheck);
$resultCheck[$directory] = false;
if ($directory !== false && is_writable($directoryToCheck)) {
$resultCheck[$directory] = true;
}
}
return $resultCheck;
}
/**
* Initializes Profiling via XHProf.
* See: https://github.com/piwik/piwik/blob/master/tests/README.xhprof.md
*/
public static function setupProfilerXHProf($mainRun = false)
{
if (SettingsServer::isTrackerApiRequest()) {
// do not profile Tracker
return;
}
$path = PIWIK_INCLUDE_PATH . '/tests/lib/xhprof-0.9.4/xhprof_lib/utils/xhprof_runs.php';
if (!file_exists($path)) {
return;
}
if (!function_exists('xhprof_enable')) {
return;
}
if (!is_writable(ini_get("xhprof.output_dir"))) {
throw new \Exception("The profiler output dir '" . ini_get("xhprof.output_dir") . "' should exist and be writable.");
}
require_once $path;
require_once PIWIK_INCLUDE_PATH . '/tests/lib/xhprof-0.9.4/xhprof_lib/utils/xhprof_lib.php';
if (!function_exists('xhprof_error')) {
function xhprof_error($out)
{
echo substr($out, 0, 300) . '...';
}
}
$currentGitBranch = SettingsPiwik::getCurrentGitBranch();
$profilerNamespace = "piwik";
if ($currentGitBranch != 'master') {
$profilerNamespace .= "." . $currentGitBranch;
}
xhprof_enable(XHPROF_FLAGS_CPU + XHPROF_FLAGS_MEMORY);
if ($mainRun) {
self::setProfilingRunIds(array());
}
register_shutdown_function(function () use($profilerNamespace, $mainRun) {
$xhprofData = xhprof_disable();
$xhprofRuns = new \XHProfRuns_Default();
$runId = $xhprofRuns->save_run($xhprofData, $profilerNamespace);
if (empty($runId)) {
die('could not write profiler run');
}
$runs = self::getProfilingRunIds();
$runs[] = $runId;
// $weights = array_fill(0, count($runs), 1);
// $aggregate = xhprof_aggregate_runs($xhprofRuns, $runs, $weights, $profilerNamespace);
// $runId = $xhprofRuns->save_run($aggregate, $profilerNamespace);
if ($mainRun) {
$runIds = implode(',', $runs);
$out = "\n\n";
$baseUrl = "http://" . @$_SERVER['HTTP_HOST'] . "/" . @$_SERVER['REQUEST_URI'];
$baseUrlStored = SettingsPiwik::getPiwikUrl();
if (strlen($baseUrlStored) > strlen($baseUrl)) {
$baseUrl = $baseUrlStored;
}
$baseUrl = "\n" . $baseUrl . "tests/lib/xhprof-0.9.4/xhprof_html/?source={$profilerNamespace}&run=";
$out .= "Profiler report is available at:";
$out .= $baseUrl . $runId;
if ($runId != $runIds) {
$out .= "\n\nProfiler Report aggregating all runs triggered from this process: ";
$out .= $baseUrl . $runIds;
}
$out .= "\n\n";
echo $out;
} else {
self::setProfilingRunIds($runs);
}
});
}
/**
* Get file integrity information (in PIWIK_INCLUDE_PATH).
*
* @return array(bool, string, ...) Return code (true/false), followed by zero or more error messages
*/
public static function getFileIntegrityInformation()
{
$messages = array();
$messages[] = true;
$manifest = PIWIK_INCLUDE_PATH . '/config/manifest.inc.php';
if (file_exists($manifest)) {
require_once $manifest;
}
if (!class_exists('Piwik\\Manifest')) {
$git = SettingsPiwik::getCurrentGitBranch();
if (empty($git)) {
$messages[] = Piwik::translate('General_WarningFileIntegrityNoManifest') . " If you are deploying Piwik from Git, this message is normal.";
}
return $messages;
}
$files = \Piwik\Manifest::$files;
$hasMd5file = function_exists('md5_file');
$hasMd5 = function_exists('md5');
foreach ($files as $path => $props) {
$file = PIWIK_INCLUDE_PATH . '/' . $path;
if (!file_exists($file)) {
$messages[] = Piwik::translate('General_ExceptionMissingFile', $file);
} else {
if (filesize($file) != $props[0]) {
if (!$hasMd5 || in_array(substr($path, -4), array('.gif', '.ico', '.jpg', '.png', '.swf'))) {
// files that contain binary data (e.g., images) must match the file size
$messages[] = Piwik::translate('General_ExceptionFilesizeMismatch', array($file, $props[0], filesize($file)));
} else {
// convert end-of-line characters and re-test text files
$content = @file_get_contents($file);
$content = str_replace("\r\n", "\n", $content);
if (strlen($content) != $props[0] || @md5($content) !== $props[1]) {
$messages[] = Piwik::translate('General_ExceptionFilesizeMismatch', array($file, $props[0], filesize($file)));
}
}
} else {
if ($hasMd5file && @md5_file($file) !== $props[1]) {
$messages[] = Piwik::translate('General_ExceptionFileIntegrity', $file);
}
}
}
}
if (count($messages) > 1) {
$messages[0] = false;
}
if (!$hasMd5file) {
$messages[] = Piwik::translate('General_WarningFileIntegrityNoMd5file');
}
return $messages;
}
/**
* Returns the string to save in the cookie from the $this->value array of values.
* It goes through the array and generates the cookie content string.
*
* @return string Cookie content
*/
protected function generateContentString()
{
$cookieStr = '';
foreach ($this->value as $name => $value) {
if (!is_numeric($value)) {
$value = base64_encode(safe_serialize($value));
}
$cookieStr .= "{$name}={$value}" . self::VALUE_SEPARATOR;
}
if (!empty($cookieStr)) {
$cookieStr .= '_=';
// sign cookie
$signature = sha1($cookieStr . SettingsPiwik::getSalt());
return $cookieStr . $signature;
}
return '';
}
/**
* @return bool
*/
public static function isSecureConnectionAssumedByPiwikButNotForcedYet()
{
$isSecureConnectionLikelyNotUsed = Url::isSecureConnectionLikelyNotUsed();
$hasSessionCookieSecureFlag = ProxyHttp::isHttps();
$isSecureConnectionAssumedByPiwikButNotForcedYet = Url::isPiwikConfiguredToAssumeSecureConnection() && !SettingsPiwik::isHttpsForced();
return $isSecureConnectionLikelyNotUsed && $hasSessionCookieSecureFlag && $isSecureConnectionAssumedByPiwikButNotForcedYet;
}
