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<?php |
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/** |
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* @package midcom.routing |
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* @author CONTENT CONTROL http://www.contentcontrol-berlin.de/ |
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* @copyright CONTENT CONTROL http://www.contentcontrol-berlin.de/ |
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* @license http://www.gnu.org/licenses/gpl.html GNU General Public License |
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*/ |
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namespace midcom\routing; |
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use midcom_connection; |
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use midcom_core_context; |
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use midcom_db_topic; |
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/** |
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* URL name parser that uses the topic structure |
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* |
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* @package midcom.routing |
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*/ |
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class parser |
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{ |
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public array $argv = []; |
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private ?midcom_db_topic $current = null; |
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private string $url = ''; |
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/** |
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* Objects by URL |
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* |
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* @var midcom_db_topic[] |
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*/ |
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private array $objects = []; |
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private midcom_core_context $context; |
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public function __construct(midcom_core_context $context) |
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{ |
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$this->context = $context; |
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$url = $this->context->get_key(MIDCOM_CONTEXT_URI); |
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352 |
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$prefix_length = strlen(midcom_connection::get_url('prefix')); |
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352 |
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if ( $prefix_length > 1 |
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&& str_starts_with($url, midcom_connection::get_url('prefix'))) { |
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$url = substr($url, $prefix_length); |
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} |
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352 |
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$url = trim($url, '/'); |
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352 |
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if ($url != '') { |
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$argv = explode('/', $url); |
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foreach ($argv as $val) { |
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if ($val !== '') { |
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$this->argv[] = $val; |
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} |
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} |
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} |
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} |
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/** |
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* Try to fetch a URL variable. |
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* |
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* Try to decode an midcom-<key>-<value> pair at the current URL |
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* position. |
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* |
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* On success it returns the command it found. |
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*/ |
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public function find_urlmethod() : ?string |
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{ |
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if ( empty($this->argv) |
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351 |
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|| !str_starts_with($this->argv[0], 'midcom-')) { |
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return null; |
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} |
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1 |
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return $this->context->get_key(MIDCOM_CONTEXT_URI); |
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} |
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/** |
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* @throws \midcom_error |
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*/ |
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350 |
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public function find_topic() : midcom_db_topic |
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{ |
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$this->current = $this->context->get_key(MIDCOM_CONTEXT_ROOTTOPIC); |
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if (!$this->current) { |
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throw new \midcom_error('Root node missing.'); |
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} |
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$this->walk_topics(); |
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// Initialize context |
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$this->context->set_key(MIDCOM_CONTEXT_ANCHORPREFIX, midcom_connection::get_url('self') . $this->url); |
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$this->context->set_key(MIDCOM_CONTEXT_COMPONENT, $this->current->component); |
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$this->context->set_key(MIDCOM_CONTEXT_CONTENTTOPIC, $this->current); |
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$this->context->set_key(MIDCOM_CONTEXT_URLTOPICS, $this->objects); |
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return $this->current; |
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} |
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/** |
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* Load topics recursively from argv |
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*/ |
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350 |
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private function walk_topics() |
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{ |
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if (empty($this->argv)) { |
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// No arguments left |
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return; |
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} |
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334 |
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$object_url = $this->argv[0] . '/'; |
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334 |
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if (!empty($this->url)) { |
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3 |
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$object_url = $this->url . $object_url; |
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} |
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334 |
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if (!array_key_exists($object_url, $this->objects)) { |
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$qb = midcom_db_topic::new_query_builder(); |
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$qb->add_constraint('name', '=', $this->argv[0]); |
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$qb->add_constraint('up', '=', $this->current->id); |
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if ($qb->count() == 0) { |
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// last load returned ACCESS DENIED, no sense to dig deeper |
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334 |
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if ($qb->denied > 0) { |
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throw new \midcom_error_forbidden; |
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} |
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// allow for handler switches to work |
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return; |
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} |
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// Set to current topic |
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$this->objects[$object_url] = $qb->get_result(0); |
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} |
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// Remove this component from path |
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3 |
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array_shift($this->argv); |
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// Set as current object |
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$this->url = $object_url; |
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$this->current = $this->objects[$object_url]; |
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$this->walk_topics(); |
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} |
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} |
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flack /
openpsa
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