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Starbeamrainbowlabs
f63553fb92
This has been a looong time in coming. 1.9K links is _far_ too much for any file.
143 lines
4.2 KiB
PHP
143 lines
4.2 KiB
PHP
<?php
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//////////////////////////
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///// Page id system /////
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//////////////////////////
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if(!file_exists($paths->idindex))
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file_put_contents($paths->idindex, "{}");
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$idindex_decode_start = microtime(true);
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$idindex = json_decode(file_get_contents($paths->idindex));
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$env->perfdata->idindex_decode_time = round((microtime(true) - $idindex_decode_start)*1000, 3);
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/**
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* Provides an interface to interact with page ids.
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* @package core
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*/
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class ids
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{
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/**
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* Gets the page id associated with the given page name.
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* If it doesn't exist in the id index, it will be added.
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* @package core
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* @param string $pagename The name of the page to fetch the id for.
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* @return int The id for the specified page name.
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*/
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public static function getid($pagename)
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{
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global $idindex;
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$pagename_norm = Normalizer::normalize($pagename, Normalizer::FORM_C);
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foreach ($idindex as $id => $entry)
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{
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// We don't need to normalise here because we normralise when assigning ids
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if($entry == $pagename_norm)
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return $id;
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}
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// This pagename doesn't have an id - assign it one quick!
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return self::assign($pagename);
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}
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/**
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* Gets the page name associated with the given page id.
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* Be warned that if the id index is cleared (e.g. when the search index is
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* rebuilt from scratch), the id associated with a page name may change!
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* @package core
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* @param int $id The id to fetch the page name for.
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* @return string The page name currently associated with the specified id.
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*/
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public static function getpagename($id)
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{
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global $idindex;
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if(!isset($idindex->$id))
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return false;
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else
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return $idindex->$id;
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}
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/**
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* Moves a page in the id index from $oldpagename to $newpagename.
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* Note that this function doesn't perform any special checks to make sure
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* that the destination name doesn't already exist.
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* @package core
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* @param string $oldpagename The old page name to move.
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* @param string $newpagename The new page name to move the old page name to.
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*/
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public static function movepagename($oldpagename, $newpagename)
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{
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global $idindex, $paths;
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$pageid = self::getid(Normalizer::normalize($oldpagename, Normalizer::FORM_C));
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$idindex->$pageid = Normalizer::normalize($newpagename, Normalizer::FORM_C);
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file_put_contents($paths->idindex, json_encode($idindex));
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}
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/**
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* Removes the given page name from the id index.
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* Note that this function doesn't handle multiple entries with the same
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* name. Also note that it may get re-added during a search reindex if the
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* page still exists.
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* @package core
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* @param string $pagename The page name to delete from the id index.
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*/
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public static function deletepagename($pagename)
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{
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global $idindex, $paths;
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// Get the id of the specified page
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$pageid = self::getid($pagename);
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// Remove it from the pageindex
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unset($idindex->$pageid);
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// Save the id index
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file_put_contents($paths->idindex, json_encode($idindex));
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}
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/**
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* Clears the id index completely.
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* Will break the inverted search index! Make sure you rebuild the search
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* index (if the search module is installed, of course) if you want search
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* to still work. Of course, note that will re-add all the pages to the id
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* index.
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* @package core
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*/
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public static function clear()
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{
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global $paths, $idindex;
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// Delete the old id index
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unlink($paths->idindex);
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// Create the new id index
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file_put_contents($paths->idindex, "{}");
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// Reset the in-memory id index
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$idindex = new stdClass();
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}
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/**
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* Assigns an id to a pagename. Doesn't check to make sure that
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* pagename doesn't already exist in the id index.
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* @package core
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* @param string $pagename The page name to assign an id to.
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* @return int The id assigned to the specified page name.
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*/
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protected static function assign($pagename)
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{
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global $idindex, $paths;
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$pagename = Normalizer::normalize($pagename, Normalizer::FORM_C);
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$nextid = count(array_keys(get_object_vars($idindex)));
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// Increment the generated id until it's unique
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while(isset($idindex->nextid))
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$nextid++;
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// Update the id index
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$idindex->$nextid = $pagename;
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// Save the id index
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file_put_contents($paths->idindex, json_encode($idindex));
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return $nextid;
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}
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}
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//////////////////////////
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//////////////////////////
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