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<?php |
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/** |
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* @copyright 2017 Vladimir Jimenez |
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* @license https://github.com/allejo/stakx/blob/master/LICENSE.md MIT |
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*/ |
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namespace allejo\stakx\Document; |
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abstract class PermalinkDocument extends ReadableDocument |
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{ |
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protected $permalink; |
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protected $redirects; |
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/** |
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* Get the destination of where this Content Item would be written to when the website is compiled. |
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* |
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* @return string |
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*/ |
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final public function getTargetFile() |
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{ |
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$permalink = $this->getPermalink(); |
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$missingFile = (substr($permalink, -1) == '/'); |
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$permalink = str_replace('/', DIRECTORY_SEPARATOR, $permalink); |
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if ($missingFile) |
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{ |
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$permalink = rtrim($permalink, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR . 'index.html'; |
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} |
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return ltrim($permalink, DIRECTORY_SEPARATOR); |
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} |
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/** |
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* Get the permalink of this Content Item. |
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* |
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* @throws \Exception |
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* |
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* @return string |
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*/ |
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final public function getPermalink() |
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{ |
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$this->buildPermalink(); |
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$this->permalink = $this->sanitizePermalink($this->permalink); |
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$this->permalink = str_replace(DIRECTORY_SEPARATOR, '/', $this->permalink); |
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$this->permalink = '/' . ltrim($this->permalink, '/'); // Permalinks should always use '/' and not be OS specific |
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return $this->permalink; |
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} |
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/** |
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* Get an array of URLs that will redirect to. |
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* |
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* @return string[] |
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*/ |
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final public function getRedirects() |
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{ |
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if (is_null($this->redirects)) |
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{ |
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$this->getPermalink(); |
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} |
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return $this->redirects; |
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} |
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/** |
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* Get the permalink based off the location of where the file is relative to the website. This permalink is to be |
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* used as a fallback in the case that a permalink is not explicitly specified in the Front Matter. |
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* |
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* @return string |
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*/ |
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protected function getPathPermalink() |
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{ |
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// Remove the protocol of the path, if there is one and prepend a '/' to the beginning |
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$cleanPath = preg_replace('/[\w|\d]+:\/\//', '', $this->getRelativeFilePath()); |
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$cleanPath = ltrim($cleanPath, DIRECTORY_SEPARATOR); |
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// Handle vfs:// paths by replacing their forward slashes with the OS appropriate directory separator |
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if (DIRECTORY_SEPARATOR !== '/') |
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{ |
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$cleanPath = str_replace('/', DIRECTORY_SEPARATOR, $cleanPath); |
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} |
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// Check the first folder and see if it's a data folder (starts with an underscore) intended for stakx |
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$folders = explode(DIRECTORY_SEPARATOR, $cleanPath); |
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if (substr($folders[0], 0, 1) === '_') |
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{ |
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array_shift($folders); |
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} |
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$cleanPath = implode(DIRECTORY_SEPARATOR, $folders); |
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return $cleanPath; |
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} |
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/** |
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* Sanitize a permalink to remove unsupported characters or multiple '/' and replace spaces with hyphens. |
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* |
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* @param string $permalink A permalink |
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* |
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* @return string $permalink The sanitized permalink |
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*/ |
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protected function sanitizePermalink($permalink) |
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{ |
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// Remove multiple '/' together |
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$permalink = preg_replace('/\/+/', '/', $permalink); |
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// Replace all spaces with hyphens |
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$permalink = str_replace(' ', '-', $permalink); |
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// Remove all disallowed characters |
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$permalink = preg_replace('/[^0-9a-zA-Z-_\/\\\.]/', '', $permalink); |
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// Handle unnecessary extensions |
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$extensionsToStrip = array('twig'); |
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if (in_array($this->fs->getExtension($permalink), $extensionsToStrip)) |
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{ |
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$permalink = $this->fs->removeExtension($permalink); |
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} |
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// Remove any special characters before a sane value |
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$permalink = preg_replace('/^[^0-9a-zA-Z-_]*/', '', $permalink); |
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// Convert permalinks to lower case |
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$permalink = mb_strtolower($permalink, 'UTF-8'); |
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return $permalink; |
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} |
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/** |
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* @return void |
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*/ |
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abstract protected function buildPermalink(); |
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} |
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stakx-io /
stakx
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