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Pepperminty-Wiki/modules/feature-history.php

85 lines
3.7 KiB
PHP

<?php
register_module([
"name" => "Page History",
"version" => "0.2",
"author" => "Starbeamrainbowlabs",
"description" => "Adds the ability to keep unlimited page history, limited only by your disk space. Note that this doesn't store file history (yet). Currently depends on feature-recent-changes for rendering of the history page.",
"id" => "feature-history",
"code" => function() {
/*
* ██ ██ ██ ███████ ████████ ██████ ██████ ██ ██
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
* ███████ ██ ███████ ██ ██ ██ ██████ ████
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
* ██ ██ ██ ███████ ██ ██████ ██ ██ ██
*/
add_action("history", function() {
global $settings, $env, $pageindex;
$content = "<h1>History for $env->page</h1>\n";
if(!empty($pageindex->{$env->page}->history))
{
$content .= "\t\t<ul class='page-list'>\n";
foreach($pageindex->{$env->page}->history as $revisionData)
{
// Only display edits for now
if($revisionData->type != "edit")
continue;
// The number (and the sign) of the size difference to display
$size_display = ($revisionData->sizediff > 0 ? "+" : "") . $revisionData->sizediff;
$size_display_class = $revisionData->sizediff > 0 ? "larger" : ($revisionData->sizediff < 0 ? "smaller" : "nochange");
if($revisionData->sizediff > 500 or $revisionData->sizediff < -500)
$size_display_class .= " significant";
$size_title_display = human_filesize($revisionData->newsize - $revisionData->sizediff) . " -> " . human_filesize($revisionData->newsize);
$content .= "<li>#$revisionData->rid " . render_rchange_editor($revisionData->editor) . " " . render_rchange_timestamp($revisionData->timestamp) . " <span class='cursor-query $size_display_class' title='$size_title_display'>($size_display)</span>";
}
}
else
{
$content .= "<p style='text-align: center;'><em>(None yet! Try editing this page and then coming back here.)</em></p>\n";
}
exit(page_renderer::render_main("$env->page - History - $settings->sitename", $content));
});
register_save_preprocessor(function(&$pageinfo, &$newsource, &$oldsource) {
global $pageindex, $paths, $env;
if(!isset($pageinfo->history))
$pageinfo->history = [];
// Save the *new source* as a revision
// This results in 2 copies of the current source, but this is ok
// since any time someone changes something, it create a new
// revision
// Note that we can't save the old source here because we'd have no
// clue who edited it since $pageinfo has already been updated by
// this point
// TODO Store tag changes here
$nextRid = count($pageinfo->history); // The next revision id
$ridFilename = "$pageinfo->filename.r$nextRid";
// Insert a new entry into the history
$pageinfo->history[] = [
"type" => "edit", // We might want to store other types later (e.g. page moves)
"rid" => $nextRid,
"timestamp" => time(),
"filename" => $ridFilename,
"newsize" => strlen($newsource),
"sizediff" => strlen($newsource) - strlen($oldsource),
"editor" => $pageinfo->lasteditor
];
// Save the new source as a revision
file_put_contents("$env->storage_prefix$ridFilename", $newsource);
// Save the edited pageindex
file_put_contents($paths->pageindex, json_encode($pageindex, JSON_PRETTY_PRINT));
});
}
]);
?>