Differential D25083 Diff 370 src/infrastructure/markup/markuprule/PhutilRemarkupRule.php

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src/infrastructure/markup/markuprule/PhutilRemarkupRule.php

Show First 20 Lines • Show All 124 Lines • ▼ Show 20 Lines	abstract class PhutilRemarkupRule extends Phobject {
protected function isURIRelativePath($uri) {		protected function isURIRelativePath($uri) {
// NOTE: This was the original check, but at		// NOTE: This was the original check, but at
// the moment '/' is assumed as relative but		// the moment '/' is assumed as relative but
// './' is assumed as not relative, and this		// './' is assumed as not relative, and this
// may be confusing and may deserve a future update		// may be confusing and may deserve a future update
return strncmp($uri, '/', 1) == 0;		return strncmp($uri, '/', 1) == 0;
}		}

		/**
		* Check if a generic URI points to an internal destination
		*
		* The URI can be relative or absolute
		*
		* @param string $uri Example '/bar/' or 'http://example.com/bar/'
		* @return bool
		*/
		protected function isInternalGenericURI($uri) {
		return $this->isURIAnchor($uri)
		\|\| $this->isURIRelativePath($uri)
		\|\| $this->isInternalAbsoluteURI($uri);
		}

		/**
		* Check if an absolute URI points to Phorge/Phabricator itself
		*
		* @param string $uri Example 'http://example.com/bar/'
		* @return bool
		*/
		protected function isInternalAbsoluteURI($uri) {

		// Get the Base URI - full URI with protocol and ending with '/'
		// It's difficult to imagine a case where this config is not defined,
		// but better to be nice here
		$base_uri =
		PhabricatorEnv::getEnvConfigIfExists('phabricator.base-uri', null);

		// Assume a safe default
		if (!$base_uri) {
		return false;
		}

		return $this->isURIStartingWith($uri, $base_uri);
		}

		/**
		* Check whenever an URI starts with a specific prefix
		*
		* @param $uri string Example 'http://example.com/bar/'
		* @param $prefix string Example 'http://example.com/'
		* @return bool True if the first is contained in the second
		*/
		private function isURIStartingWith($uri, $prefix) {
		// I know that PHP 8 has 'str_starts_with()'
		// but that is not the minimum version
		// https://stackoverflow.com/a/2790919
		return substr($uri, 0, strlen($prefix)) === $prefix;
		}

}		}