SilverStripe\StaticPublishQueue\Publisher\FilesystemPublisher

Complexity

Total Complexity

49

Size/Duplication

Total Lines	269
Duplicated Lines	0 %

Importance

Changes	13
Bugs	0	Features	1

16 Methods

Rating	Name	Duplication	Size	Complexity
A	getFileExtension()	0	3	1
A	setFileExtension()	0	15	2
A	purgeAll()	0	5	2
A	getDestFolder()	0	3	1
A	setDestFolder()	0	4	1
A	getDestPath()	0	4	2
B	publishURL()	0	26	7
A	publishRedirect()	0	12	4
A	purgeURL()	0	18	4
A	publishPage()	0	19	6
B	getPublishedURLs()	0	23	7
A	deleteFromPath()	0	13	4
A	compressFile()	0	8	1
A	saveToPath()	0	24	5
A	pathToURL()	0	3	1
A	URLtoPath()	0	3	1

<?php

namespace SilverStripe\StaticPublishQueue\Publisher;

use SilverStripe\Assets\Filesystem;
use SilverStripe\Control\HTTPResponse;
use function SilverStripe\StaticPublishQueue\PathToURL;
use SilverStripe\StaticPublishQueue\Publisher;
use SilverStripe\Core\Config\Config;
use SilverStripe\Security\SecurityToken;
use function SilverStripe\StaticPublishQueue\URLtoPath;

class FilesystemPublisher extends Publisher
{
    /**
     * @var string
     */
    protected $destFolder = 'cache';

    /**
     * @var string
     */
    protected $fileExtension = 'php';

    /**
     * @var bool
     */
    private static $use_gzip_compression = false;

The private property $use_gzip_compression is not used, and could be removed.

    /**
     * avoid caching any pages with name"SecurityID" - an indication that a
     * form my be present that requires a fresh SecurityID
     * @var bool
     */
    private static $lazy_form_recognition = false;

The private property $lazy_form_recognition is not used, and could be removed.

    /**
     * @return string
     */
    public function getDestPath()
    {
        $base = defined('PUBLIC_PATH') ? PUBLIC_PATH : BASE_PATH;
        return $base . DIRECTORY_SEPARATOR . $this->getDestFolder();
    }

    public function setDestFolder($destFolder)
    {
        $this->destFolder = $destFolder;
        return $this;
    }

    public function getDestFolder()
    {
        return $this->destFolder;
    }

    public function setFileExtension($fileExtension)
    {
        $fileExtension = strtolower($fileExtension);
        if (!in_array($fileExtension, ['html', 'php'], true)) {
            throw new \InvalidArgumentException(
                sprintf(
                    'Bad file extension "%s" passed to %s::%s',
                    $fileExtension,
                    static::class,
                    __FUNCTION__
                )
            );
        }
        $this->fileExtension = $fileExtension;
        return $this;
    }

    public function getFileExtension()
    {
        return $this->fileExtension;
    }

    public function purgeURL($url)
    {
        if (!$url) {
            user_error('Bad url:' . var_export($url, true), E_USER_WARNING);
            return;
        }
        if ($path = $this->URLtoPath($url)) {
            $success = $this->deleteFromPath($path . '.html') && $this->deleteFromPath($path . '.php');
            return [
                'success' => $success,
                'url' => $url,
                'path' => $this->getDestPath() . DIRECTORY_SEPARATOR . $path,
            ];
        }
        return [
            'success' => false,
            'url' => $url,
            'path' => false,
        ];
    }

    public function purgeAll()
    {
        Filesystem::removeFolder($this->getDestPath());

        return file_exists($this->getDestPath()) ? false : true;
    }

    /**
     * @param string $url
     * @param bool $forcePublish (optional)
     * @return array A result array
     */
    public function publishURL($url, $forcePublish = false)
    {
        if (!$url) {
            user_error('Bad url:' . var_export($url, true), E_USER_WARNING);
            return;
        }
        $success = false;
        $response = $this->generatePageResponse($url);
        $statusCode = $response->getStatusCode();
        $doPublish = ($forcePublish && $this->getFileExtension() === 'php') || $statusCode < 400;

Consider adding parentheses for clarity. Current Interpretation: $doPublish = ($forcePublish && $this->getFileExtension() === 'php' || $statusCode < 400), Probably Intended Meaning: $doPublish = $forcePublish && ($this->getFileExtension() === 'php' || $statusCode < 400)

        if ($statusCode < 300) {
            // publish success response
            $success = $this->publishPage($response, $url);
        } elseif ($statusCode < 400) {
            // publish redirect response
            $success = $this->publishRedirect($response, $url);
        } elseif ($doPublish) {
            // only publish error pages if we are able to send status codes via PHP
            $success = $this->publishPage($response, $url);
        }
        return [
            'published' => $doPublish,
            'success' => $success,
            'responsecode' => $statusCode,
            'url' => $url,
        ];
    }

    /**
     * @param HTTPResponse $response
     * @param string       $url
     * @return bool
     */
    protected function publishRedirect($response, $url)
    {
        $success = true;
        if ($path = $this->URLtoPath($url)) {
            $location = $response->getHeader('Location');
            if ($this->getFileExtension() === 'php') {
                $phpContent = $this->generatePHPCacheFile($response);
                $success = $this->saveToPath($phpContent, $path . '.php');
            }
            return $this->saveToPath($this->generateHTMLCacheRedirection($location), $path . '.html') && $success;
        }
        return false;
    }

    /**
     * @param HTTPResponse $response
     * @param string       $url
     * @return bool
     */
    protected function publishPage($response, $url)
    {
        $success = true;
        if ($path = $this->URLtoPath($url)) {
            $body = $response->getBody();
            if ($this->config()->get('lazy_form_recognition')) {
                $id = Config::inst()->get(SecurityToken::class, 'default_name') ?? 'SecurityID';
                // little hack to make sure we do not include pages with live forms.
                if (stripos($body, '<input type="hidden" name="' . $id . '"')) {
                    return false;
                }
            }
            if ($this->getFileExtension() === 'php') {
                $phpContent = $this->generatePHPCacheFile($response);
                $success = $this->saveToPath($phpContent, $path . '.php');
            }
            return $this->saveToPath($body, $path . '.html') && $success;
        }
        return false;
    }

    /**
     * returns true on access and false on failure
     * @param string $content
     * @param string $filePath
     * @return bool
     */
    protected function saveToPath($content, $filePath)
    {
        if (empty($content)) {
            return false;
        }

        // Write to a temporary file first
        $temporaryPath = tempnam(TEMP_PATH, 'filesystempublisher_');
        if (file_put_contents($temporaryPath, $content) === false) {
            return false;
        }

        // Move the temporary file to the desired location (prevents unlocked files from being read during write)
        $publishPath = $this->getDestPath() . DIRECTORY_SEPARATOR . $filePath;
        Filesystem::makeFolder(dirname($publishPath));

        $successWithPublish = rename($temporaryPath, $publishPath);
        if ($successWithPublish) {
            if (FilesystemPublisher::config()->get('use_gzip_compression')) {
                $publishPath = $this->compressFile($publishPath);
            }
        }

        return file_exists($publishPath);
    }

    /**
     * Compress the html file and store it gzipped
     *
     * @param string $publishPath
     * @return string The path of the compressed file
     */
    protected function compressFile($publishPath)
    {
        $data = file_get_contents($publishPath);
        $gzData = gzencode($data, 9);
        $gzPublishPath = $publishPath . '.gz';
        unlink($gzPublishPath);
        file_put_contents($gzPublishPath, $gzData);
        return $gzPublishPath;
    }

    protected function deleteFromPath($filePath)
    {
        $deletePath = $this->getDestPath() . DIRECTORY_SEPARATOR . $filePath;
        if (file_exists($deletePath)) {
            $success = unlink($deletePath);
        } else {
            $success = true;
        }
        if (file_exists($deletePath . '.gz')) {
            $success = unlink($deletePath . '.gz') && $success;
        }

        return $success;
    }

    protected function URLtoPath($url)
    {
        return URLtoPath($url, BASE_URL, FilesystemPublisher::config()->get('domain_based_caching'));
    }

    protected function pathToURL($path)
    {
        return PathToURL($path, $this->getDestPath(), FilesystemPublisher::config()->get('domain_based_caching'));
    }

    public function getPublishedURLs($dir = null, &$result = [])
    {
        if ($dir === null) {
            $dir = $this->getDestPath();
        }

        $root = scandir($dir);
        foreach ($root as $fileOrDir) {
            if (strpos($fileOrDir, '.') === 0) {
                continue;
            }
            $fullPath = $dir . DIRECTORY_SEPARATOR . $fileOrDir;
            // we know html will always be generated, this prevents double ups
            if (is_file($fullPath) && pathinfo($fullPath, PATHINFO_EXTENSION) === 'html') {
                $result[] = $this->pathToURL($fullPath);
                continue;
            }

            if (is_dir($fullPath)) {
                $this->getPublishedURLs($fullPath, $result);
            }
        }
        return $result;
    }
}