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<?php |
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namespace Consolidation\SiteAlias; |
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use Consolidation\Config\Config; |
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use Consolidation\Config\ConfigInterface; |
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use Webmozart\PathUtil\Path; |
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/** |
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* A host path is a path on some machine. The machine may be specified |
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* by a label, and the label may be an @alias or a site specification. |
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* If there is no label, then the local machine is assumed. |
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* |
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* Examples: |
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* |
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* @alias |
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* @alias:/path |
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* host:/path |
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* user@host:/path |
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* user@host/drupal-root#uri:/path |
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* /path |
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* |
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* Note that /path does not have to begin with a '/'; it may |
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* be a relative path, or it may begin with a path alias, |
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* e.g. '%files'. |
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* |
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* It is permissible to have an alias or site specification |
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* without a path, but it is not valid to have just a host |
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* with no path. |
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*/ |
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class HostPath |
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{ |
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/** @var SiteAlias The alias record obtained from the host path */ |
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protected $alias_record; |
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/** @var string The entire original host path (e.g. @alias:/path) */ |
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protected $original_path; |
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/** @var string The "path" component from the host path */ |
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protected $path; |
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/** @var string The alias record is implicit (e.g. 'path' instead of '@self:path') */ |
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protected $implicit; |
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/** |
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* HostPath constructor |
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* |
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* @param SiteAlias $alias_record The alias record or site specification record |
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* @param string $original_path The original host path |
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* @param string $path Just the 'path' component |
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*/ |
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protected function __construct($alias_record, $original_path, $path = '', $implicit = false) |
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{ |
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$this->alias_record = $alias_record; |
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$this->original_path = $original_path; |
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$this->path = $path; |
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$this->implicit = $implicit; |
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} |
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/** |
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* Factory method to create a host path. |
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* |
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* @param SiteAliasManager $manager We need to be provided a reference |
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* to the alias manager to create a host path |
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* @param string $hostPath The path to create. |
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*/ |
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public static function create(SiteAliasManager $manager, $hostPath) |
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{ |
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// Split the alias path up into |
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// - $parts[0]: everything before the first ":" |
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// - $parts[1]: everything after the ":", if there was one. |
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$parts = explode(':', $hostPath, 2); |
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// Determine whether or not $parts[0] is a site spec or an alias |
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// record. If $parts[0] is not in the right form, the result |
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// will be 'false'. This will throw if $parts[0] is an @alias |
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// record, but the requested alias cannot be found. |
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$alias_record = $manager->get($parts[0]); |
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if (!isset($parts[1])) { |
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return static::determinePathOrAlias($manager, $alias_record, $hostPath, $parts[0]); |
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} |
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// If $parts[0] did not resolve to a site spec or alias record, |
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// but there is a $parts[1], then $parts[0] must be a machine name. |
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// Unless it was an alias that could not be found. |
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if ($alias_record === false) { |
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if (SiteAliasName::isAliasName($parts[0])) { |
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throw new \Exception('Site alias ' . $parts[0] . ' not found.'); |
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} |
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$alias_record = new SiteAlias(['host' => $parts[0]]); |
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} |
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// Create our alias path |
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return new HostPath($alias_record, $hostPath, $parts[1]); |
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} |
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/** |
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* Return the alias record portion of the host path. |
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* |
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* @return SiteAlias |
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*/ |
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public function getSiteAlias() |
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{ |
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return $this->alias_record; |
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} |
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/** |
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* @deprecated Use getSiteAlias |
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*/ |
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public function getAliasRecord() |
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{ |
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return $this->getSiteAlias(); |
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} |
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/** |
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* Returns true if this host path points at a remote machine |
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* |
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* @return bool |
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*/ |
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public function isRemote() |
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{ |
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return $this->alias_record->isRemote(); |
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} |
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/** |
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* Return just the path portion, without considering the alias root. |
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* |
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* @return string |
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*/ |
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public function getOriginalPath() |
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{ |
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return $this->path; |
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} |
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/** |
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* Return the original host path string, as provided to the create() method. |
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* |
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* @return string |
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*/ |
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public function getOriginal() |
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{ |
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return $this->original_path; |
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} |
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/** |
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* Return just the path portion of the host path |
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* |
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* @return string |
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*/ |
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public function getPath() |
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{ |
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if (empty($this->path)) { |
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return $this->alias_record->root(); |
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} |
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if ($this->alias_record->hasRoot() && !$this->implicit) { |
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return Path::makeAbsolute($this->path, $this->alias_record->root()); |
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} |
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return $this->path; |
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} |
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/** |
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* Returns 'true' if the path portion of the host path begins with a |
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* path alias (e.g. '%files'). Path aliases must appear at the beginning |
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* of the path. |
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* |
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* @return bool |
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*/ |
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public function hasPathAlias() |
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{ |
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$pathAlias = $this->getPathAlias(); |
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return !empty($pathAlias); |
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} |
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/** |
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* Return just the path alias portion of the path (e.g. '%files'), or |
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* empty if there is no alias in the path. |
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* |
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* @return string |
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*/ |
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public function getPathAlias() |
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{ |
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if (preg_match('#%([^/]*).*#', $this->path, $matches)) { |
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return $matches[1]; |
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} |
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return ''; |
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} |
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/** |
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* Replaces the path alias portion of the path with the resolved path. |
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* |
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* @param string $resolvedPath The converted path alias (e.g. 'sites/default/files') |
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* @return $this |
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*/ |
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public function replacePathAlias($resolvedPath) |
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{ |
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$pathAlias = $this->getPathAlias(); |
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if (empty($pathAlias)) { |
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return $this; |
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} |
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// Make sure that the resolved path always ends in a '\'. |
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$resolvedPath .= '/'; |
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// Avoid double / in path. |
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// $this->path: %files/foo |
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// $pathAlias: files |
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// We add one to the length of $pathAlias to account for the '%' in $this->path. |
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if (strlen($this->path) > (strlen($pathAlias) + 1)) { |
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$resolvedPath = rtrim($resolvedPath, '/'); |
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} |
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// Once the path alias is resolved, replace the alias in the $path with the result. |
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$this->path = $resolvedPath . substr($this->path, strlen($pathAlias) + 1); |
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// Using a path alias such as %files is equivalent to making explicit |
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// use of @self:%files. We set implicit to false here so that the resolved |
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// path will be returned as an absolute path rather than a relative path. |
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$this->implicit = false; |
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return $this; |
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} |
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/** |
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* Return the host portion of the host path, including the user. |
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* |
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* @return string |
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*/ |
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public function getHost() |
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{ |
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return $this->alias_record->remoteHostWithUser(); |
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} |
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/** |
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* Return the fully resolved path, e.g. user@server:/path/to/drupalroot/sites/default/files |
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* |
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* @return string |
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*/ |
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public function fullyQualifiedPath() |
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{ |
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$host = $this->getHost(); |
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if (!empty($host)) { |
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return $host . ':' . $this->getPath(); |
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} |
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return $this->getPath(); |
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} |
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/** |
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* Our fully qualified path passes the result through Path::makeAbsolute() |
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* which canonicallizes the path, removing any trailing slashes. |
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* That is what we want most of the time; however, the trailing slash is |
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* sometimes significant, e.g. for rsync, so we provide a separate API |
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* for those cases where the trailing slash should be preserved. |
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* |
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* @return string |
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*/ |
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public function fullyQualifiedPathPreservingTrailingSlash() |
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{ |
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$fqp = $this->fullyQualifiedPath(); |
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if ((substr($this->path, strlen($this->path) - 1) == '/') && (substr($fqp, strlen($fqp) - 1) != '/')) { |
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$fqp .= '/'; |
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} |
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return $fqp; |
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} |
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/** |
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* Helper method for HostPath::create(). When the host path contains no |
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* ':', this method determines whether the string that was provided is |
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* a host or a path. |
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* |
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* @param SiteAliasManager $manager |
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* @param SiteAlias|bool $alias_record |
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* @param string $hostPath |
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* @param string $single_part |
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*/ |
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protected static function determinePathOrAlias(SiteAliasManager $manager, $alias_record, $hostPath, $single_part) |
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{ |
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// If $alias_record is false, then $single_part must be a path. |
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if ($alias_record === false) { |
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return new HostPath($manager->getSelf(), $hostPath, $single_part, true); |
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} |
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// Otherwise, we have a alias record without a path. |
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// In this instance, the alias record _must_ have a root. |
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if (!$alias_record->hasRoot()) { |
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throw new \Exception("$hostPath does not define a path."); |
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} |
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return new HostPath($alias_record, $hostPath); |
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} |
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} |
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This check looks for assignments to scalar types that may be of the wrong type.
To ensure the code behaves as expected, it may be a good idea to add an explicit type cast.