467 lines
18 KiB
PHP
467 lines
18 KiB
PHP
<?php
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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register_module([
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"name" => "Recent Changes",
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"version" => "0.5.3",
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"author" => "Starbeamrainbowlabs",
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"description" => "Adds recent changes. Access through the 'recent-changes' action.",
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"id" => "feature-recent-changes",
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"code" => function() {
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global $settings, $env, $paths;
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// Add the recent changes json file to $paths for convenience.
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$paths->recentchanges = $env->storage_prefix . "recent-changes.json";
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// Create the recent changes json file if it doesn't exist
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if(!file_exists($paths->recentchanges))
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file_put_contents($paths->recentchanges, "[]");
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/**
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* @api {get} ?action=recent-changes[&offset={number}][&count={number}][&format={code}] Get a list of recent changes
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* @apiName RecentChanges
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* @apiGroup Stats
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* @apiPermission Anonymous
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*
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* @apiParam {number} offset If specified, start returning changes from this many changes in. 0 is the beginning.
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* @apiParam {number} count If specified, return at most this many changes. A value of 0 means no limit (the default) - apart from the limit on the number of changes stored by the server (configurable in pepppermint.json).
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* @apiParam {string} format The format to return the recent changes in. Valid values: html, json, csv, atom. Default: html.
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*/
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/*
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* ██████ ███████ ██████ ███████ ███ ██ ████████
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* ██ ██ ██ ██ ██ ████ ██ ██
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* ██████ █████ ██ █████ ██ ██ ██ ██
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* ██ ██ ██ ██ ██ ██ ██ ██ ██
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* ██ ██ ███████ ██████ ███████ ██ ████ ██
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*
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* ██████ ██ ██ █████ ███ ██ ██████ ███████ ███████
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* ██ ██ ██ ██ ██ ████ ██ ██ ██ ██
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* ██ ███████ ███████ ██ ██ ██ ██ ███ █████ ███████
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* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
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* ██████ ██ ██ ██ ██ ██ ████ ██████ ███████ ███████
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*/
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add_action("recent-changes", function() {
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global $settings, $paths, $pageindex;
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$format = $_GET["format"] ?? "html";
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$offset = intval($_GET["offset"] ?? 0);
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$count = intval($_GET["count"] ?? 0);
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$recent_changes = json_decode(file_get_contents($paths->recentchanges));
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// Limit the number of changes displayed if requested
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if($count > 0)
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$recent_changes = array_slice($recent_changes, $offset, $count);
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switch($format) {
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case "html":
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$content = "\t\t<h1>Recent Changes</h1>\n";
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if(count($recent_changes) > 0)
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$content .= render_recent_changes($recent_changes);
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else // No changes yet :(
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$content .= "<p><em>None yet! Try making a few changes and then check back here.</em></p>\n";
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page_renderer::add_header_html("\t<link rel=\"alternate\" type=\"application/atom+xml\" href=\"?action=recent-changes&format=atom\" />
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<link rel=\"alternate\" type=\"text/csv\" href=\"?action=recent-changes&format=csv\" />
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<link rel=\"alternate\" type=\"application/json\" href=\"?action=recent-changes&format=json\" />");
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exit(page_renderer::render("Recent Changes - $settings->sitename", $content));
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break;
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case "json":
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$result = json_encode($recent_changes);
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header("content-type: application/json");
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header("content-length: " . strlen($result));
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exit($result);
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break;
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case "csv":
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if(empty($recent_changes)) {
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http_response_code(404);
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header("content-type: text/plain");
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exit("No changes made been recorded yet. Make some changes and then come back later!");
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}
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$result = fopen('php://temp/maxmemory:'. (5*1024*1024), 'r+');
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fputcsv($result, array_keys(get_object_vars($recent_changes[0])));
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foreach($recent_changes as $recent_change)
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fputcsv($result, array_values(get_object_vars($recent_change)));
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rewind($result);
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header("content-type: text/csv");
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header("content-length: " . fstat($result)["size"]);
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exit(stream_get_contents($result));
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break;
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case "atom":
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$result = render_recent_change_atom($recent_changes);
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header("content-type: application/atom+xml");
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header("content-length: " . strlen($result));
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exit($result);
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default:
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http_response_code(406);
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header("content-type: text/plain");
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header("content-length: 42");
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exit("Error: That format code was not recognised.");
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}
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});
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register_save_preprocessor(function(&$pageinfo, &$newsource, &$oldsource) {
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global $env, $settings, $paths;
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// Work out the old and new page lengths
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$oldsize = strlen($oldsource);
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$newsize = strlen($newsource);
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// Calculate the page length difference
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$size_diff = $newsize - $oldsize;
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$newchange = [
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"type" => "edit",
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"timestamp" => time(),
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"page" => $env->page,
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"user" => $env->user,
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"newsize" => $newsize,
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"sizediff" => $size_diff
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];
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if($oldsize == 0)
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$newchange["newpage"] = true;
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add_recent_change($newchange);
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});
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add_help_section("800-raw-page-content", "Recent Changes", "<p>The <a href='?action=recent-changes'>recent changes</a> page displays a list of all the most recent changes that have happened around $settings->sitename, arranged in chronological order. It can be found in the \"More...\" menu in the top right by default.</p>
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<p>Each entry displays the name of the page in question, who edited it, how long ago they did so, and the number of characters added or removed. Pages that <em>currently</em> redirect to another page are shown in italics, and hovering over the time since the edit wil show the exact time that the edit was made.</p>");
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}
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]);
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/**
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* Adds a new recent change to the recent changes file.
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* @package feature-recent-changes
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* @param array $rchange The new change to add.
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*/
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function add_recent_change($rchange)
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{
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global $settings, $paths;
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$recentchanges = json_decode(file_get_contents($paths->recentchanges), true);
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array_unshift($recentchanges, $rchange);
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// Limit the number of entries in the recent changes file if we've
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// been asked to.
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if(isset($settings->max_recent_changes))
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$recentchanges = array_slice($recentchanges, 0, $settings->max_recent_changes);
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// Save the recent changes file back to disk
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file_put_contents($paths->recentchanges, json_encode($recentchanges, JSON_PRETTY_PRINT));
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}
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/**
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* Renders a list of recent changes to HTML.
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* @package feature-recent-changes
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* @param array $recent_changes The recent changes to render.
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* @return string The given recent changes as HTML.
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*/
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function render_recent_changes($recent_changes)
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{
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global $pageindex;
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// Cache the number of recent changes we are dealing with
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$rchange_count = count($recent_changes);
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// Group changes made on the same page and the same day together
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for($i = 0; $i < $rchange_count; $i++)
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{
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for($s = $i + 1; $s < $rchange_count; $s++)
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{
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// Break out if we have reached the end of the day we are scanning
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if(date("dmY", $recent_changes[$i]->timestamp) !== date("dmY", $recent_changes[$s]->timestamp))
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break;
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// If we have found a change that has been made on the same page and
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// on the same day as the one that we are scanning for, move it up
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// next to the change we are scanning for.
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if($recent_changes[$i]->page == $recent_changes[$s]->page &&
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date("j", $recent_changes[$i]->timestamp) === date("j", $recent_changes[$s]->timestamp))
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{
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// FUTURE: We may need to remove and insert instead of swapping changes around if this causes some changes to appear out of order.
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$temp = $recent_changes[$i + 1];
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$recent_changes[$i + 1] = $recent_changes[$s];
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$recent_changes[$s] = $temp;
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$i++;
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}
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}
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}
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$content = "<ul class='page-list'>\n";
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$last_time = 0;
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for($i = 0; $i < $rchange_count; $i++)
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{
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$rchange = $recent_changes[$i];
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if($last_time !== date("dmY", $rchange->timestamp))
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$content .= "<li class='header'><h2>" . date("jS F", $rchange->timestamp) . "</h2></li>\n";
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$rchange_results = [];
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for($s = $i; $s < $rchange_count; $s++)
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{
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if($recent_changes[$s]->page !== $rchange->page)
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break;
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$rchange_results[$s] = render_recent_change($recent_changes[$s]);
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$i++;
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}
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// Take one from i to account for when we tick over to the next
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// iteration of the main loop
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$i -= 1;
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$next_entry = implode("\n", $rchange_results);
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// If the change count is greater than 1, then we should enclose it
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// in a <details /> tag.
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if(count($rchange_results) > 1)
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{
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reset($rchange_results);
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$rchange_first = $recent_changes[key($rchange_results)];
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end($rchange_results);
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$rchange_last = $recent_changes[key($rchange_results)];
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$pageDisplayHtml = render_pagename($rchange_first);
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$timeDisplayHtml = render_timestamp($rchange_first->timestamp);
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$users = [];
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foreach($rchange_results as $key => $rchange_result)
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{
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if(!in_array($recent_changes[$key]->user, $users))
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$users[] = $recent_changes[$key]->user;
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}
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foreach($users as &$user)
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$user = page_renderer::render_username($user);
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$userDisplayHtml = render_editor(implode(", ", $users));
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$next_entry = "<li><details><summary><a href='?page=" . rawurlencode($rchange_first->page) . "'>$pageDisplayHtml</a> $userDisplayHtml $timeDisplayHtml</summary><ul class='page-list'>$next_entry</ul></details></li>";
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$content .= "$next_entry\n";
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}
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else
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{
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$content .= implode("\n", $rchange_results);
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}
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$last_time = date("dmY", $rchange->timestamp);
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}
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$content .= "\t\t</ul>";
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return $content;
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}
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/**
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* Given a page name and timestamp, returns the associated page revision number.
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* @param string $pagename The page name to obtain the revision number for.
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* @param int $timestamap The timestamp at which the revision was saved.
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* @return int The revision number of the given page at the given time.
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*/
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function find_revisionid_timestamp($pagename, $timestamp) {
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global $pageindex;
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if(!isset($pageindex->$pagename) || !isset($pageindex->$pagename->history))
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return null;
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foreach($pageindex->$pagename->history as $historyEntry){
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if($historyEntry->timestamp == $timestamp) {
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return $historyEntry->rid;
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break;
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}
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}
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}
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/**
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* Renders a single recent change
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* @package feature-recent-changes
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* @param object $rchange The recent change to render.
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* @return string The recent change, rendered to HTML.
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*/
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function render_recent_change($rchange)
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{
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global $pageindex;
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$pageDisplayHtml = render_pagename($rchange);
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$editorDisplayHtml = render_editor(page_renderer::render_username($rchange->user));
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$timeDisplayHtml = render_timestamp($rchange->timestamp);
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$revisionId = find_revisionid_timestamp($rchange->page, $rchange->timestamp);
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$result = "";
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$resultClasses = [];
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$rchange_type = isset($rchange->type) ? $rchange->type : "edit";
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switch($rchange_type)
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{
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case "revert":
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case "edit":
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// The number (and the sign) of the size difference to display
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$size_display = ($rchange->sizediff > 0 ? "+" : "") . $rchange->sizediff;
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$size_display_class = $rchange->sizediff > 0 ? "larger" : ($rchange->sizediff < 0 ? "smaller" : "nochange");
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if($rchange->sizediff > 500 or $rchange->sizediff < -500)
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$size_display_class .= " significant";
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$size_title_display = human_filesize($rchange->newsize - $rchange->sizediff) . " -> " . human_filesize($rchange->newsize);
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if(!empty($rchange->newpage))
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$resultClasses[] = "newpage";
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if($rchange_type === "revert")
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$resultClasses[] = "reversion";
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$result .= "<a href='?page=" . rawurlencode($rchange->page) . (!empty($revisionId) ? "&revision=$revisionId" : "") . (!empty($pageindex->{$rchange->page}->redirect) ? "&redirect=no" : "" ) . "'>$pageDisplayHtml</a> $editorDisplayHtml $timeDisplayHtml <span class='$size_display_class' title='$size_title_display'>($size_display)</span>";
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break;
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case "deletion":
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$resultClasses[] = "deletion";
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$result .= "$pageDisplayHtml $editorDisplayHtml $timeDisplayHtml";
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break;
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case "move":
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$resultClasses[] = "move";
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$result .= "$rchange->oldpage → <a href='?page=" . rawurlencode($rchange->page) . "'>$pageDisplayHtml</a> $editorDisplayHtml $timeDisplayHtml";
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break;
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case "upload":
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$resultClasses[] = "upload";
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$result .= "<a href='?page=$rchange->page'>$pageDisplayHtml</a> $editorDisplayHtml $timeDisplayHtml (" . human_filesize($rchange->filesize) . ")";
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break;
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case "comment":
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$resultClasses[] = "new-comment";
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$result .= "<a href='?page=$rchange->page#comment-" . (!empty($rchange->comment_id) ? "$rchange->comment_id" : "unknown_comment_id") . "'>$pageDisplayHtml</a> $editorDisplayHtml";
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}
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$resultAttributes = " " . (count($resultClasses) > 0 ? "class='" . implode(" ", $resultClasses) . "'" : "");
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$result = "\t\t\t<li$resultAttributes>$result</li>\n";
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return $result;
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}
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/**
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* Renders a list of recent changes as an Atom 1.0 feed.
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* Requires the XMLWriter PHP class.
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* @param array $recent_changes The array of recent changes to render.
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* @return string The recent changes as an Atom 1.0 feed.
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*/
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function render_recent_change_atom($recent_changes) {
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global $version, $settings;
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// See http://www.atomenabled.org/developers/syndication/#sampleFeed for easy-to-read Atom 1.0 docs
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$full_url_stem = url_stem();
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$xml = new XMLWriter();
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$xml->openMemory();
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$xml->setIndent(true); $xml->setIndentString("\t");
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$xml->startDocument("1.0", "utf-8");
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$xml->startElement("feed");
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$xml->writeAttribute("xmlns", "http://www.w3.org/2005/Atom");
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$xml->startElement("generator");
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$xml->writeAttribute("uri", "https://github.com/sbrl/Pepperminty-Wiki/");
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$xml->writeAttribute("version", $version);
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$xml->text("Pepperminty Wiki");
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$xml->endElement();
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$xml->startElement("link");
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$xml->writeAttribute("rel", "self");
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$xml->writeAttribute("type", "application/atom+xml");
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$xml->writeAttribute("href", full_url());
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$xml->endElement();
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$xml->startElement("link");
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$xml->writeAttribute("rel", "alternate");
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$xml->writeAttribute("type", "text/html");
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$xml->writeAttribute("href", "$full_url_stem?action=recent-changes&format=html");
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$xml->endElement();
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$xml->startElement("link");
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$xml->writeAttribute("rel", "alternate");
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$xml->writeAttribute("type", "application/json");
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$xml->writeAttribute("href", "$full_url_stem?action=recent-changes&format=json");
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$xml->endElement();
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$xml->startElement("link");
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$xml->writeAttribute("rel", "alternate");
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$xml->writeAttribute("type", "text/csv");
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$xml->writeAttribute("href", "$full_url_stem?action=recent-changes&format=csv");
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$xml->endElement();
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$xml->writeElement("updated", date(DateTime::ATOM));
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$xml->writeElement("id", full_url());
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$xml->writeElement("icon", $settings->favicon);
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$xml->writeElement("title", "$settings->sitename - Recent Changes");
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$xml->writeElement("subtitle", "Recent Changes on $settings->sitename");
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foreach($recent_changes as $recent_change) {
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if(empty($recent_change->type))
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$recent_change->type = "edit";
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$xml->startElement("entry");
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// Change types: revert, edit, deletion, move, upload, comment
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$type = $recent_change->type;
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$url = "$full_url_stem?page=".rawurlencode($recent_change->page);
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$content = "<ul>
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<li><strong>Change type:</strong> $recent_change->type</li>
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<li><strong>User:</strong> $recent_change->user</li>
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<li><strong>Page name:</strong> $recent_change->page</li>
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<li><strong>Timestamp:</strong> ".date(DateTime::RFC1123, $recent_change->timestamp)."</li>\n";
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switch($type) {
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case "revert":
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case "edit":
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$type = ($type == "revert" ? "Reversion of" : "Edit to");
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$revision_id = find_revisionid_timestamp($recent_change->page, $recent_change->timestamp);
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if(!empty($revision_id))
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$url .= "&revision=$revision_id";
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$content .= "<li><strong>New page size:</strong> ".human_filesize($recent_change->newsize)."</li>
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<li><strong>Page size difference:</strong> ".($recent_change->sizediff > 0 ? "+" : "")."$recent_change->sizediff</li>\n";
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break;
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case "deletion": $type = "Deletion of"; break;
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case "move": $type = "Movement of"; break;
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case "upload":
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$type = "Upload of";
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$content .= "\t<li><strong>File size:</strong> ".human_filesize($recent_change->filesize)."</li>\n";
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break;
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case "comment":
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$type = "Comment on";
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$url .= "#comment-$recent_change->comment_id";
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break;
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}
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$content .= "</ul>";
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$xml->startElement("title");
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$xml->writeAttribute("type", "text");
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$xml->text("$type $recent_change->page by $recent_change->user");
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$xml->endElement();
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$xml->writeElement("id", $url);
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$xml->writeElement("updated", date(DateTime::ATOM, $recent_change->timestamp));
|
|
|
|
$xml->startElement("content");
|
|
$xml->writeAttribute("type", "html");
|
|
$xml->text($content);
|
|
$xml->endElement();
|
|
|
|
$xml->startElement("link");
|
|
$xml->writeAttribute("rel", "alternate");
|
|
$xml->writeAttribute("type", "text/html");
|
|
$xml->writeAttribute("href", $url);
|
|
$xml->endElement();
|
|
|
|
$xml->startElement("author");
|
|
$xml->writeElement("name", $recent_change->user);
|
|
$xml->writeElement("uri", "$full_url_stem?page=".rawurlencode("$settings->user_page_prefix/$recent_change->user"));
|
|
$xml->endElement();
|
|
|
|
$xml->endElement();
|
|
}
|
|
|
|
$xml->endElement();
|
|
|
|
return $xml->flush();
|
|
}
|