<?php
use Piwik\Filesystem;
use Piwik\Plugin\Manager;
use Piwik\SettingsServer;

/**
 * Piwik - Open source web analytics
 *
 * @link http://piwik.org
 * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 */
class ReleaseCheckListTest extends PHPUnit_Framework_TestCase
{
    public function setUp()
    {
        $this->globalConfig = _parse_ini_file(PIWIK_PATH_TEST_TO_ROOT . '/config/global.ini.php', true);
        parent::setUp();
    }
    /**
     * @group Core
     */
    public function test_icoFilesIconsShouldBeInPngFormat()
    {
        $files = Filesystem::globr(PIWIK_INCLUDE_PATH . '/plugins', '*.ico');
        $this->checkFilesAreInPngFormat($files);
        $files = Filesystem::globr(PIWIK_INCLUDE_PATH . '/core', '*.ico');
        $this->checkFilesAreInPngFormat($files);
    }

    /**
     * @group Core
     */
    public function test_pngFilesIconsShouldBeInPngFormat()
    {
        $files = Filesystem::globr(PIWIK_INCLUDE_PATH . '/plugins', '*.png');
        $this->checkFilesAreInPngFormat($files);
        $files = Filesystem::globr(PIWIK_INCLUDE_PATH . '/core', '*.png');
        $this->checkFilesAreInPngFormat($files);
    }

    /**
     * @group Core
     */
    public function test_gifFilesIconsShouldBeInGifFormat()
    {
        $files = Filesystem::globr(PIWIK_INCLUDE_PATH . '/plugins', '*.gif');
        $this->checkFilesAreInGifFormat($files);
        $files = Filesystem::globr(PIWIK_INCLUDE_PATH . '/core', '*.gif');
        $this->checkFilesAreInGifFormat($files);
    }

    /**
     * @group Core
     */
    public function test_jpgImagesShouldBeInJpgFormat()
    {
        $files = Filesystem::globr(PIWIK_INCLUDE_PATH . '/plugins', '*.jpg');
        $this->checkFilesAreInJpgFormat($files);
        $files = Filesystem::globr(PIWIK_INCLUDE_PATH . '/core', '*.jpg');
        $this->checkFilesAreInJpgFormat($files);
        $files = Filesystem::globr(PIWIK_INCLUDE_PATH . '/plugins', '*.jpeg');
        $this->checkFilesAreInJpgFormat($files);
        $files = Filesystem::globr(PIWIK_INCLUDE_PATH . '/core', '*.jpeg');
        $this->checkFilesAreInJpgFormat($files);

    }


    /**
     * @group Core
     */
    public function testCheckThatConfigurationValuesAreProductionValues()
    {
        $this->_checkEqual(array('Debug' => 'always_archive_data_day'), '0');
        $this->_checkEqual(array('Debug' => 'always_archive_data_period'), '0');
        $this->_checkEqual(array('Debug' => 'enable_sql_profiler'), '0');
        $this->_checkEqual(array('General' => 'time_before_today_archive_considered_outdated'), '10');
        $this->_checkEqual(array('General' => 'enable_browser_archiving_triggering'), '1');
        $this->_checkEqual(array('General' => 'default_language'), 'en');
        $this->_checkEqual(array('Tracker' => 'record_statistics'), '1');
        $this->_checkEqual(array('Tracker' => 'visit_standard_length'), '1800');
        $this->_checkEqual(array('Tracker' => 'trust_visitors_cookies'), '0');
        // logging messages are disabled
        $this->_checkEqual(array('log' => 'log_level'), 'WARN');
        $this->_checkEqual(array('log' => 'log_writers'), array('screen'));
        $this->_checkEqual(array('log' => 'logger_api_call'), null);


        require_once PIWIK_INCLUDE_PATH . "/core/TaskScheduler.php";
        $this->assertFalse(DEBUG_FORCE_SCHEDULED_TASKS);

        require_once PIWIK_INCLUDE_PATH . "/core/API/ResponseBuilder.php";
        $this->assertFalse(\Piwik\API\ResponseBuilder::DISPLAY_BACKTRACE_DEBUG);
    }

    private function _checkEqual($key, $valueExpected)
    {
        $section = key($key);
        $optionName = current($key);
        $value = null;
        if (isset($this->globalConfig[$section][$optionName])) {
            $value = $this->globalConfig[$section][$optionName];
        }
        $this->assertEquals($valueExpected, $value, "$section -> $optionName was '" . var_export($value, true) . "', expected '" . var_export($valueExpected, true) . "'");
    }

    /**
     * @group Core
     */
    public function testTemplatesDontContainDebug()
    {
        $patternFailIfFound = 'dump(';
        $files = Filesystem::globr(PIWIK_INCLUDE_PATH . '/plugins', '*.twig');
        foreach ($files as $file) {
            $content = file_get_contents($file);
            $this->assertFalse(strpos($content, $patternFailIfFound), 'found in ' . $file);
        }
    }

    /**
     * @group Core
     */
    public function testCheckThatGivenPluginsAreDisabledByDefault()
    {
        $pluginsShouldBeDisabled = array(
            'DBStats'
        );
        foreach ($pluginsShouldBeDisabled as $pluginName) {
            if (in_array($pluginName, $this->globalConfig['Plugins']['Plugins'])) {
                throw new Exception("Plugin $pluginName is enabled by default but shouldn't.");
            }
        }

    }

    /**
     * test that the profiler is disabled (mandatory on a production server)
     * @group Core
     */
    public function testProfilingDisabledInProduction()
    {
        require_once 'Tracker/Db.php';
        $this->assertTrue(\Piwik\Tracker\Db::isProfilingEnabled() === false, 'SQL profiler should be disabled in production! See Db::$profiling');
    }

    /**
     * @group Core
     */
    public function testPiwikTrackerDebugIsOff()
    {
        $this->assertTrue(!isset($GLOBALS['PIWIK_TRACKER_DEBUG']));

        $oldGet = $_GET;
        $_GET = array('idsite' => 1);

        // hiding echoed out message on empty request
        ob_start();
        include PIWIK_PATH_TEST_TO_ROOT . "/piwik.php";
        ob_end_clean();

        $_GET = $oldGet;

        $this->assertTrue($GLOBALS['PIWIK_TRACKER_DEBUG'] === false);
    }


    /**
     * Check that directories in plugins/ folder are specifically either enabled or disabled.
     *
     * This fails when a new folder is added to plugins/* and forgot to enable or mark as disabled in Manager.php.
     *
     * @group Core
     */
    public function test_DirectoriesInPluginsFolder_areKnown()
    {
        $pluginsBundledWithPiwik = \Piwik\Config::getInstance()->getFromGlobalConfig('Plugins');
        $pluginsBundledWithPiwik = $pluginsBundledWithPiwik['Plugins'];
        $magicPlugins = 42;
        $this->assertTrue(count($pluginsBundledWithPiwik) > $magicPlugins);

        $plugins = _glob(\Piwik\Plugin\Manager::getPluginsDirectory() . '*', GLOB_ONLYDIR);
        $count = 1;
        foreach($plugins as $pluginPath) {
            $pluginName = basename($pluginPath);

            $gitOutput = shell_exec('git ls-files ' . $pluginPath . ' --error-unmatch 2>&1');
            $addedToGit = (strlen($gitOutput) > 0) && strpos($gitOutput, 'error: pathspec') === false;

            if(!$addedToGit) {
                // if not added to git, then it is not part of the release checklist.
                continue;
            }
            $manager = \Piwik\Plugin\Manager::getInstance();
            $disabled = in_array($pluginName, $manager->getCorePluginsDisabledByDefault());

            $isGitSubmodule = Manager::getInstance()->isPluginOfficialAndNotBundledWithCore($pluginName);
            $enabled = in_array($pluginName, $pluginsBundledWithPiwik) || $isGitSubmodule;

            $this->assertTrue( $enabled + $disabled === 1,
                "Plugin $pluginName should be either enabled (in global.ini.php) or disabled (in Piwik\\Plugin\\Manager)."
            );
            $count++;
        }
        $this->assertTrue($count > $magicPlugins);
    }


    /**
     * @group Core
     */
    public function testEndOfLines()
    {
        if (SettingsServer::isWindows()) {
            // SVN native does not make this work on windows
            return;
        }
        foreach (Filesystem::globr(PIWIK_DOCUMENT_ROOT, '*') as $file) {
            // skip files in these folders
            if (strpos($file, '/.git/') !== false ||
                strpos($file, '/documentation/') !== false ||
                strpos($file, '/tests/') !== false ||
                strpos($file, '/lang/') !== false ||
                strpos($file, 'yuicompressor') !== false ||
                strpos($file, '/tmp/') !== false
            ) {
                continue;
            }

            // skip files with these file extensions
            if (preg_match('/\.(bmp|fdf|gif|deflate|exe|gz|ico|jar|jpg|p12|pdf|png|rar|swf|vsd|z|zip|ttf|so|dat|eps|phar)$/', $file)) {
                continue;
            }

            if (!is_dir($file)) {
                $contents = file_get_contents($file);

                // expect CRLF
                if (preg_match('/\.(bat|ps1)$/', $file)) {
                    $contents = str_replace("\r\n", '', $contents);
                    $this->assertTrue(strpos($contents, "\n") === false, 'Incorrect line endings in ' . $file);
                } else {
                    // expect native
                    $hasWindowsEOL = strpos($contents, "\r\n");

                    // overwrite translations files with incorrect line endings
                    $this->assertTrue($hasWindowsEOL === false, 'Incorrect line endings \r\n found in ' . $file);
                }
            }
        }
    }

    /**
     * @group Core
     */
    public function testPiwikJavaScript()
    {
        // check source against Snort rule 8443
        // @see http://dev.piwik.org/trac/ticket/2203
        $pattern = '/\x5b\x5c{2}.*\x5c{2}[\x22\x27]/';
        $contents = file_get_contents(PIWIK_DOCUMENT_ROOT . '/js/piwik.js');

        $this->assertTrue(preg_match($pattern, $contents) == 0);

        $contents = file_get_contents(PIWIK_DOCUMENT_ROOT . '/piwik.js');
        $this->assertTrue(preg_match($pattern, $contents) == 0);
    }

    /**
     * @param $files
     */
    private function checkFilesAreInPngFormat($files)
    {
        $this->checkFilesAreInFormat($files, "png");
    }
    private function checkFilesAreInJpgFormat($files)
    {
        $this->checkFilesAreInFormat($files, "jpeg");
    }

    private function checkFilesAreInGifFormat($files)
    {
        $this->checkFilesAreInFormat($files, "gif");
    }

    /**
     * @param $files
     * @param $format
     */
    private function checkFilesAreInFormat($files, $format)
    {
        $errors = array();
        foreach ($files as $file) {
            $function = "imagecreatefrom" . $format;
            $handle = @$function($file);
            if (empty($handle)) {
                $errors[] = $file;
            }
        }

        if (!empty($errors)) {
            $icons = var_export($errors, true);
            $icons = "gimp " . implode(" ", $errors);
            $this->fail("$format format failed for following icons $icons \n");
        }
    }


}