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Pepperminty-Wiki/core/20-pageindex-loader.php

160 lines
6.1 KiB
PHP

<?php
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
/*
* Sort out the pageindex. Create it if it doesn't exist, and load + parse it
* if it does.
*/
if(!file_exists($paths->pageindex))
{
$glob_str = $env->storage_prefix . "*.md";
$existingpages = glob_recursive($glob_str);
$existingpages_count = count($existingpages);
// Debug statements. Uncomment when debugging the pageindex regenerator.
// var_dump($env->storage_prefix);
// var_dump($glob_str);
// var_dump($existingpages);
$pageindex = new stdClass();
// We use a for loop here because foreach doesn't loop over new values inserted
// while we were looping
for($i = 0; $i < $existingpages_count; $i++)
{
$pagefilename = $existingpages[$i];
// Create a new entry
$newentry = new stdClass();
$newentry->filename = mb_substr( // Store the filename, whilst trimming the storage prefix
$pagefilename,
mb_strlen(preg_replace("/^\.\//iu", "", $env->storage_prefix)) // glob_recursive trim the ./ from returned filenames , so we need to as well
);
// Remove the `./` from the beginning if it's still hanging around
if(mb_substr($newentry->filename, 0, 2) == "./")
$newentry->filename = mb_substr($newentry->filename, 2);
$newentry->size = filesize($pagefilename); // Store the page size
$newentry->lastmodified = filemtime($pagefilename); // Store the date last modified
// Todo find a way to keep the last editor independent of the page index
$newentry->lasteditor = "unknown"; // Set the editor to "unknown"
// Extract the name of the (sub)page without the ".md"
$pagekey = filepath_to_pagename($newentry->filename);
error_log("pagename '$newentry->filename' → filepath '$pagekey'");
if(file_exists($env->storage_prefix . $pagekey) && // If it exists...
!is_dir($env->storage_prefix . $pagekey)) // ...and isn't a directory
{
// This page (potentially) has an associated file!
// Let's investigate.
// Blindly add the file to the pageindex for now.
// Future We might want to do a security check on the file later on.
// File a bug if you think we should do this.
$newentry->uploadedfile = true; // Yes this page does have an uploaded file associated with it
$newentry->uploadedfilepath = $pagekey; // It's stored here
// Work out what kind of file it really is
$mimechecker = finfo_open(FILEINFO_MIME_TYPE);
$newentry->uploadedfilemime = finfo_file($mimechecker, $env->storage_prefix . $pagekey);
}
// Debug statements. Uncomment when debugging the pageindex regenerator.
// echo("pagekey: ");
// var_dump($pagekey);
// echo("newentry: ");
// var_dump($newentry);
// Subpage parent checker
if(strpos($pagekey, "/") !== false)
{
// We have a sub page people
// Work out what our direct parent's key must be in order to check to
// make sure that it actually exists. If it doesn't, then we need to
// create it.
$subpage_parent_key = substr($pagekey, 0, strrpos($pagekey, "/"));
$subpage_parent_filename = "$env->storage_prefix$subpage_parent_key.md";
if(array_search($subpage_parent_filename, $existingpages) === false)
{
// Our parent page doesn't actually exist - create it
touch($subpage_parent_filename, 0);
// Furthermore, we should add this page to the list of existing pages
// in order for it to be indexed
$existingpages[] = $subpage_parent_filename;
}
}
// If the initial revision doesn't exist on disk, create it (if it does, then we handle that later)
if(function_exists("history_add_revision") && !file_exists("{$pagefilename}.r0")) { // Can't use module_exists - too early
copy($pagefilename, "{$pagefilename}.r0");
$newentry->history = [ (object) [
"type" => "edit",
"rid" => 0,
"timestamp" => $newentry->lastmodified,
"filename" => "{$pagefilename}.r0",
"newsize" => $newentry->size,
"sizediff" => $newentry->size,
"editor" => "unknown"
] ];
}
// Store the new entry in the new page index
$pageindex->$pagekey = $newentry;
}
if(function_exists("history_add_revision")) {
$history_revs = glob_recursive($env->storage_prefix . "*.r*");
// It's very important that we read the history revisions in the right order and that we don't skip any
usort($history_revs, function($a, $b) {
preg_match("/[0-9]+$/", $a, $revid_a);
$revid_a = intval($revid_a[0]);
preg_match("/[0-9]+$/", $b, $revid_b);
$revid_b = intval($revid_b[0]);
return $revid_a - $revid_b;
});
// We can guarantee that the direcotry separator is present on the end - it's added explicitly earlier
$strlen_storageprefix = strlen($env->storage_prefix);
foreach($history_revs as $filename) {
preg_match("/[0-9]+$/", $filename, $revid);
error_log("raw revid | ".var_export($revid, true));
if(count($revid) === 0) continue;
$revid = intval($revid[0]);
$pagename = filepath_to_pagename($filename);
$filepath_stripped = substr($filename, $strlen_storageprefix);
if(!isset($pageindex->$pagename->history))
$pageindex->$pagename->history = [];
if(isset($pageindex->$pagename->history[$revid]))
continue;
error_log("pagename: $pagename, revid: $revid, pageindex entry: ".var_export($pageindex->$pagename, true));
$newsize = filesize($filename);
$prevsize = 0;
if($revid > 0 && isset($pageindex->$pagename->history[$revid - 1])) {
$prevsize = filesize(end($pageindex->$pagename->history)->filename);
}
$pageindex->$pagename->history[$revid] = (object) [
"type" => "edit",
"rid" => $revid,
"timestamp" => filemtime($filename),
"filename" => $filepath_stripped,
"newsize" => $newsize,
"sizediff" => $newsize - $prevsize,
"editor" => "unknown"
];
}
}
save_pageindex();
unset($existingpages);
}
else
{
$pageindex_read_start = microtime(true);
$pageindex = json_decode(file_get_contents($paths->pageindex));
$env->perfdata->pageindex_decode_time = round((microtime(true) - $pageindex_read_start)*1000, 3);
header("x-pageindex-decode-time: " . $env->perfdata->pageindex_decode_time . "ms");
unset($pageindex_read_start);
}