84 lines
2.9 KiB
PHP
84 lines
2.9 KiB
PHP
<?php declare(strict_types=1);
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require_once "mime_map.php";
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require_once "file_extension.php";
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require_once "mime_type.php";
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class MimeSystem extends Extension
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{
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/** @var MimeSystemTheme */
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protected $theme;
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const VERSION = "ext_mime_version";
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public function onParseLinkTemplate(ParseLinkTemplateEvent $event)
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{
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$event->replace('$ext', $event->image->get_ext());
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$event->replace('$mime', $event->image->get_mime());
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}
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public function onDatabaseUpgrade(DatabaseUpgradeEvent $event)
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{
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global $database;
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// These upgrades are primarily for initializing mime types on upgrade, and for adjusting mime types whenever an
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// adjustment needs to be made to the mime types.
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if ($this->get_version(self::VERSION) < 1) {
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if ($database->is_transaction_open()) {
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// Each of these commands could hit a lot of data, combining
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// them into one big transaction would not be a good idea.
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$database->commit();
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}
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$database->set_timeout(300000); // These updates can take a little bit
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$extensions = $database->get_col_iterable("SELECT DISTINCT ext FROM images");
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foreach ($extensions as $ext) {
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$mime = MimeType::get_for_extension($ext);
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if (empty($mime) || $mime===MimeType::OCTET_STREAM) {
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throw new SCoreException("Unknown extension: $ext");
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}
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$normalized_extension = FileExtension::get_for_mime($mime);
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$database->execute(
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"UPDATE images SET mime = :mime, ext = :new_ext WHERE ext = :ext AND (mime IS NULL OR mime != :mime OR ext != :new_ext)",
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["mime" => $mime, "new_ext" => $normalized_extension, "ext" => $ext]
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);
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}
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$this->set_version(self::VERSION, 1);
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}
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}
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public function onHelpPageBuilding(HelpPageBuildingEvent $event)
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{
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if ($event->key===HelpPages::SEARCH) {
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$block = new Block();
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$block->header = "File Types";
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$block->body = $this->theme->get_help_html();
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$event->add_block($block);
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}
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}
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public function onSearchTermParse(SearchTermParseEvent $event)
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{
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if (is_null($event->term)) {
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return;
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}
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$matches = [];
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// check for tags first as tag based searches are more common.
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if (preg_match("/^ext[=|:]([a-zA-Z0-9]+)$/i", $event->term, $matches)) {
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$ext = strtolower($matches[1]);
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$event->add_querylet(new Querylet('images.ext = :ext', ["ext" => $ext]));
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} elseif (preg_match("/^mime[=|:](.+)$/i", $event->term, $matches)) {
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$mime = strtolower($matches[1]);
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$event->add_querylet(new Querylet("images.mime = :mime", ["mime"=>$mime]));
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}
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}
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}
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