<?php register_module([ "name" => "Page History", "version" => "0.3", "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() { /** * @api {get} ?action=history&page={pageName} Get a list of revisions for a page * @apiName History * @apiGroup Page * @apiPermission Anonymous * * @apiParam {string} page The page name to return a revision list for. * @apiParam {string} format The format to return the list of pages in. available values: html, json, text. Default: html */ /* * ██ ██ ██ ███████ ████████ ██████ ██████ ██ ██ * ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ * ███████ ██ ███████ ██ ██ ██ ██████ ████ * ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ * ██ ██ ██ ███████ ██ ██████ ██ ██ ██ */ add_action("history", function() { global $settings, $env, $pageindex; $supported_formats = [ "html", "json", "text" ]; $format = $_GET["format"] ?? "html"; switch($format) { case "html": $content = "<h1>History for $env->page</h1>\n"; if(!empty($pageindex->{$env->page}->history)) { $content .= "\t\t<ul class='page-list'>\n"; foreach(array_reverse($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); $content .= "<li><a href='?page=" . rawurlencode($env->page) . "&revision=$revisionData->rid'>#$revisionData->rid</a> " . render_editor(page_renderer::render_username($revisionData->editor)) . " " . render_timestamp($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)); case "json": $page_history = $pageindex->{$env->page}->history ?? []; foreach($page_history as &$history_entry) { unset($history_entry->filename); } header("content-type: application/json"); exit(json_encode($page_history, JSON_PRETTY_PRINT)); case "csv": $page_history = $pageindex->{$env->page}->history ?? []; header("content-type: text/csv"); echo("revision_id,timestamp,type,editor,newsize,sizediff\n"); foreach($page_history as $hentry) { echo("$hentry->rid,$hentry->timestamp,$hentry->type,$hentry->editor,$hentry->newsize,$hentry->sizediff\n"); } exit(); default: http_response_code(400); exit(page_renderer::render_main("Format Error - $env->page - History - $settings->sitename", "<p>The format <code>" . htmlentities($format) . "</code> isn't currently supported. Supported formats: html, json, csv")); } }); register_save_preprocessor("history_add_revision"); } ]); function history_add_revision(&$pageinfo, &$newsource, &$oldsource, $save_pageindex = true) { 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", $newsource); // Save the edited pageindex if($save_pageindex) file_put_contents($paths->pageindex, json_encode($pageindex, JSON_PRETTY_PRINT)); } ?>