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<?php
register_module([
"name" => "Recent Changes",
"version" => "0.3.4",
"author" => "Starbeamrainbowlabs",
"description" => "Adds recent changes. Access through the 'recent-changes' action.",
"id" => "feature-recent-changes",
"code" => function() {
global $settings, $env, $paths;
/**
* @api {get} ?action=recentchanges Get a list of recent changes
* @apiName RecentChanges
* @apiGroup Stats
* @apiPermission Anonymous
*/
// Add the recent changes json file to $paths for convenience.
$paths->recentchanges = $env->storage_prefix . "recent-changes.json";
// Create the recent changes json file if it doesn't exist
if(!file_exists($paths->recentchanges))
file_put_contents($paths->recentchanges, "[]");
/*
* ██████ ███████ ██████ ███████ ███ ██ ████████
* ██ ██ ██ ██ ██ ████ ██ ██
* ██████ █████ ██ █████ ██ ██ ██ ██
* ██ ██ ██ ██ ██ ██ ██ ██ ██
* ██ ██ ███████ ██████ ███████ ██ ████ ██
*
* ██████ ██ ██ █████ ███ ██ ██████ ███████ ███████
* ██ ██ ██ ██ ██ ████ ██ ██ ██ ██
* ██ ███████ ███████ ██ ██ ██ ██ ███ █████ ███████
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
* ██████ ██ ██ ██ ██ ██ ████ ██████ ███████ ███████
*/
add_action("recent-changes", function() {
global $settings, $paths, $pageindex;
$content = "\t\t<h1>Recent Changes</h1>\n";
$recent_changes = json_decode(file_get_contents($paths->recentchanges));
if(count($recent_changes) > 0)
{
$content .= render_recent_changes($recent_changes);
}
else
{
// No changes yet :(
$content .= "<p><em>None yet! Try making a few changes and then check back here.</em></p>\n";
}
exit(page_renderer::render("Recent Changes - $settings->sitename", $content));
});
register_save_preprocessor(function(&$pageinfo, &$newsource, &$oldsource) {
global $env, $settings, $paths;
// Work out the old and new page lengths
$oldsize = strlen($oldsource);
$newsize = strlen($newsource);
// Calculate the page length difference
$size_diff = $newsize - $oldsize;
$newchange = [
"type" => "edit",
"timestamp" => time(),
"page" => $env->page,
"user" => $env->user,
"newsize" => $newsize,
"sizediff" => $size_diff
];
if($oldsize == 0)
$newchange["newpage"] = true;
add_recent_change($newchange);
});
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>
<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>");
}
]);
/**
* Adds a new recent change to the recent changes file.
* @package feature-recent-changes
* @param array $rchange The new change to add.
*/
function add_recent_change($rchange)
{
global $settings, $paths;
$recentchanges = json_decode(file_get_contents($paths->recentchanges), true);
array_unshift($recentchanges, $rchange);
// Limit the number of entries in the recent changes file if we've
// been asked to.
if(isset($settings->max_recent_changes))
$recentchanges = array_slice($recentchanges, 0, $settings->max_recent_changes);
// Save the recent changes file back to disk
file_put_contents($paths->recentchanges, json_encode($recentchanges, JSON_PRETTY_PRINT));
}
/**
* Renders a list of recent changes to HTML.
* @package feature-recent-changes
* @param array $recent_changes The recent changes to render.
* @return string The given recent changes as HTML.
*/
function render_recent_changes($recent_changes)
{
global $pageindex;
// Cache the number of recent changes we are dealing with
$rchange_count = count($recent_changes);
// Group changes made on the same page and the same day together
for($i = 0; $i < $rchange_count; $i++)
{
for($s = $i + 1; $s < $rchange_count; $s++)
{
// Break out if we have reached the end of the day we are scanning
if(date("dmY", $recent_changes[$i]->timestamp) !== date("dmY", $recent_changes[$s]->timestamp))
break;
// If we have found a change that has been made on the same page and
// on the same day as the one that we are scanning for, move it up
// next to the change we are scanning for.
if($recent_changes[$i]->page == $recent_changes[$s]->page &&
date("j", $recent_changes[$i]->timestamp) === date("j", $recent_changes[$s]->timestamp))
{
// FUTURE: We may need to remove and insert instead of swapping changes around if this causes some changes to appear out of order.
$temp = $recent_changes[$i + 1];
$recent_changes[$i + 1] = $recent_changes[$s];
$recent_changes[$s] = $temp;
$i++;
}
}
}
$content = "<ul class='page-list'>\n";
$last_time = 0;
for($i = 0; $i < $rchange_count; $i++)
{
$rchange = $recent_changes[$i];
if($last_time !== date("dmY", $rchange->timestamp))
$content .= "<li class='header'><h2>" . date("jS F", $rchange->timestamp) . "</h2></li>\n";
$rchange_results = [];
for($s = $i; $s < $rchange_count; $s++)
{
if($recent_changes[$s]->page !== $rchange->page)
break;
$rchange_results[$s] = render_recent_change($recent_changes[$s]);
$i++;
}
// Take one from i to account for when we tick over to the next
// iteration of the main loop
$i -= 1;
$next_entry = implode("\n", $rchange_results);
// If the change count is greater than 1, then we should enclose it
// in a <details /> tag.
if(count($rchange_results) > 1)
{
reset($rchange_results);
$rchange_first = $recent_changes[key($rchange_results)];
end($rchange_results);
$rchange_last = $recent_changes[key($rchange_results)];
$pageDisplayHtml = render_pagename($rchange_first);
$timeDisplayHtml = render_timestamp($rchange_first->timestamp);
$users = [];
foreach($rchange_results as $key => $rchange_result)
{
if(!in_array($recent_changes[$key]->user, $users))
$users[] = $recent_changes[$key]->user;
}
foreach($users as &$user)
$user = page_renderer::render_username($user);
$userDisplayHtml = render_editor(implode(", ", $users));
$next_entry = "<li><details><summary><a href='?page=" . rawurlencode($rchange_first->page) . "'>$pageDisplayHtml</a> $userDisplayHtml $timeDisplayHtml</summary><ul class='page-list'>$next_entry</ul></details></li>";
$content .= "$next_entry\n";
}
else
{
$content .= implode("\n", $rchange_results);
}
$last_time = date("dmY", $rchange->timestamp);
}
$content .= "\t\t</ul>";
return $content;
}
/**
* Renders a single recent change
* @package feature-recent-changes
* @param object $rchange The recent change to render.
* @return string The recent change, rendered to HTML.
*/
function render_recent_change($rchange)
{
global $pageindex;
$pageDisplayHtml = render_pagename($rchange);
$editorDisplayHtml = render_editor(page_renderer::render_username($rchange->user));
$timeDisplayHtml = render_timestamp($rchange->timestamp);
$revisionId = false;
if(isset($pageindex->{$rchange->page}) && isset($pageindex->{$rchange->page}->history))
{
foreach($pageindex->{$rchange->page}->history as $historyEntry)
{
if($historyEntry->timestamp == $rchange->timestamp)
{
$revisionId = $historyEntry->rid;
break;
}
}
}
$result = "";
$resultClasses = [];
switch(isset($rchange->type) ? $rchange->type : "edit")
{
case "edit":
// The number (and the sign) of the size difference to display
$size_display = ($rchange->sizediff > 0 ? "+" : "") . $rchange->sizediff;
$size_display_class = $rchange->sizediff > 0 ? "larger" : ($rchange->sizediff < 0 ? "smaller" : "nochange");
if($rchange->sizediff > 500 or $rchange->sizediff < -500)
$size_display_class .= " significant";
$size_title_display = human_filesize($rchange->newsize - $rchange->sizediff) . " -> " . human_filesize($rchange->newsize);
if(!empty($rchange->newpage))
$resultClasses[] = "newpage";
$result .= "<a href='?page=" . rawurlencode($rchange->page) . ($revisionId !== false ? "&revision=$revisionId" : "") . "'>$pageDisplayHtml</a> $editorDisplayHtml $timeDisplayHtml <span class='$size_display_class' title='$size_title_display'>($size_display)</span>";
break;
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case "deletion":
$resultClasses[] = "deletion";
$result .= "$pageDisplayHtml $editorDisplayHtml $timeDisplayHtml";
break;
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case "move":
$resultClasses[] = "move";
$result .= "$rchange->oldpage ⭢ <a href='?page=" . rawurlencode($rchange->page) . "'>$pageDisplayHtml</a> $editorDisplayHtml $timeDisplayHtml";
break;
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case "upload":
$resultClasses[] = "upload";
$result .= "<a href='?page=$rchange->page'>$pageDisplayHtml</a> $editorDisplayHtml $timeDisplayHtml (" . human_filesize($rchange->filesize) . ")";
break;
case "comment":
$resultClasses[] = "new-comment";
$result .= "<a href='?page=$rchange->page#comment-" . (!empty($rchange->comment_id) ? "$rchange->comment_id" : "unknown_comment_id") . "'>$pageDisplayHtml</a> $editorDisplayHtml";
}
$resultAttributes = " " . (count($resultClasses) > 0 ? "class='" . implode(" ", $resultClasses) . "'" : "");
$result = "\t\t\t<li$resultAttributes>$result</li>\n";
return $result;
}
?>
