312 lines
9 KiB
PHP
Executable file
312 lines
9 KiB
PHP
Executable file
<?php
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/* swiki - simple wiki
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* See LICENSE file for copyright and license details.
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*/
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spl_autoload_register(function($class){ require str_replace('\\', DIRECTORY_SEPARATOR, ltrim($class, '\\')).'.php'; });
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use md\MarkdownExtra;
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define('PAGES', dirname(__FILE__). '/articles');
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define('BASE', str_replace('/index.php', '', $_SERVER['SCRIPT_NAME']));
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define('SELF', $_SERVER['SCRIPT_NAME']);
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define('DEFAULTP', 'index');
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define('SIDEBAR', 'sidebar');
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define('FOOTERP', 'footer');
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define('NXTP', '404');
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define('PREFIX', 'swiki: ');
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define('ALLTITLE', 'all');
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define('FAVICON', true);
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define('TITLE', true);
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define('CSS', true);
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define('HEAD', true);
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define('FOOTER', true);
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define('TITLEBAR', true);
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define('TOOLBAR', true);
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define('ALL', true);
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define('MAXCHARS', 512);
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define('META_DESC', true);
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define('META_ENC', true);
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define('META_VIEWPORT', true);
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define('TITLE_DATE', 'j M Y H:i');
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function __( $label, $alt_word = null ) {
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return is_null($alt_word) ? $label : $alt_word;
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}
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function truncate($text, $chars) {
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if (strlen($text) <= $chars) {
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return $text;
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}
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$text = $text." ";
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$text = substr($text,0,$chars);
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$text = substr($text,0,strrpos($text,' '));
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$text = $text."...";
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return $text;
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}
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function phead($title, $action, $html, $datetime, $bodyclass="") {
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/* TODO: improve this */
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if (META_DESC) {
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$mdesc = $html;
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$mdesc = preg_replace( '@<p\b[^>]*>(?=.*?<a\b[^>]*>).*?<\@p>@si', '', $mdesc);
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$mdesc = preg_replace( '@<(li)[^>]*?>.*?</\\1>@si', '', $mdesc);
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$mdesc = preg_replace( '@<(ul)[^>]*?>.*?</\\1>@si', '', $mdesc);
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$mdesc = strip_tags($mdesc);
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$mdesc = preg_replace('/\s*$^\s*/m', "\n", $mdesc);
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$mdesc = truncate($mdesc, MAXCHARS);
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}
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print "<!DOCTYPE html>\n";
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print "<html lang=\"en\">\n";
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if (HEAD) {
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print " <head>\n";
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if (META_ENC) {
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print " <meta charset=\"UTF-8\">\n";
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}
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if (META_DESC) {
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print " <meta name=\"description\" content=\"$mdesc\">\n";
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}
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if (META_VIEWPORT) {
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print " <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" />\n";
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}
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if (FAVICON) {
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print " <link rel=\"icon\" href=\"/icons/fav.svg\"/>\n";
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}
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if (CSS) {
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print " <link type=\"text/css\" rel=\"stylesheet\" href=\"/index.css\"/>\n";
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}
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if (TITLE) {
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print " <title>".PREFIX."$title</title>\n";
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}
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print " </head>\n";
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}
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print " <body".($bodyclass != "" ? " class=\"$bodyclass\"":"").">\n";
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if (TITLEBAR) {
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print " <div class=\"titlebar\"><span class=\"title\">$title</span>$datetime";
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print " </div>\n";
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}
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if (TOOLBAR) {
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print " <div class=\"toolbar\">\n";
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print " <a href=\"" . SELF . "\"><img src=\"/icons/home.svg\" alt=\"". __(DEFAULTP) . "\" title=\"". __(DEFAULTP) . "\" class=\"icon\"></a>\n";
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print " <a href=\"" . SELF . "?action=all\"><img src=\"/icons/list.svg\" alt=\"". __(ALLTITLE) . "\" title=\"". __(ALLTITLE) . "\" class=\"icon\"></a>\n";
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print " </div>\n";
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}
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}
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function pfooter() {
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if (FOOTERP != '') {
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print " </body>\n";
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$p = getf(FOOTERP);
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if (file_exists($p)) {
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$fp = file_get_contents($p);
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print " <div class=\"footer\">\n\n";
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print tohtml($fp);
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print " </div>\n";
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}
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}
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}
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function greppages($path = "") {
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$filenames = array();
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$dir = opendir(PAGES . "/$path" );
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while ( $filename = readdir($dir) ) {
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if ( $filename[0] == "." ) {
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continue;
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}
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if ( is_dir( PAGES . "/$path/$filename" ) ) {
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array_push($filenames, ...greppages( "$path/$filename" ) );
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continue;
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}
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if ( preg_match("/.md$/", $filename) != 1) {
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continue;
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}
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$filename = substr($filename, 0, -(strlen("md")+1) );
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if ($filename == NXTP || $filename == FOOTERP)
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continue;
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$filenames[] = substr("$path/$filename", 1);
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}
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closedir($dir);
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return $filenames;
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}
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function getf($page) {
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return PAGES . "/$page.md";
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}
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/* TODO: escape even more symbols */
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function repsym($fn) {
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return str_replace(array('~', '..', '\\', ':', '|', '&'), '-', $fn);
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}
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function purl($page) {
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return SELF . "/".str_replace("%2F", "/", str_replace("%23", "#", urlencode(repsym($page))));
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}
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function linkpage($page, $title, $attributes="") {
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return "<a href=\"" . purl($page) ."\"$attributes>$title</a>";
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}
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function tohtml($fn) {
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$parser = new MarkdownExtra;
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$parser->no_markup = true;
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$out = $parser->transform($fn);
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preg_match_all("/\[\[(.*?)\]\]/", $out, $matches, PREG_PATTERN_ORDER);
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for ($i = 0; $i < count($matches[0]); $i++) {
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$fulllinktext = $matches[1][$i];
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$linktitlesplit = explode('|', $fulllinktext);
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$linkedp = $linktitlesplit[0];
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$linkt = (count($linktitlesplit) > 1) ? $linktitlesplit[1] : $linkedp;
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$pagept = explode('#', $linkedp)[0];
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$linkedfn = getf(repsym($pagept));
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$exists = file_exists($linkedfn);
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$out = str_replace("[[$fulllinktext]]",
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linkpage($linkedp, $linkt, ($exists? "" : " class=\"noexist\"")), $out);
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}
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$out = preg_replace("/\{\{(.*?)\}\}/", "<img src=\"" . BASE . "/images/\\1\" alt=\"\\1\" />", $out);
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preg_match_all("/<h([1-4])>(.*?)<\/h\\1>/", $out, $matches, PREG_PATTERN_ORDER);
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for ($i = 0; $i < count($matches[0]); $i++) {
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$prefix = "<h".$matches[1][$i].">";
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$caption = $matches[2][$i];
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$suffix = substr_replace($prefix, "/", 1, 0);
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}
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return $out;
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}
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function main() {
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$action = isset($_REQUEST['action']) ? $_REQUEST['action'] : 'view';
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$text = "";
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$html = "";
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if ($action === 'view') {
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$page = preg_match('@^/@', @$_SERVER["PATH_INFO"]) ?
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urldecode(substr($_SERVER["PATH_INFO"], 1)) : urldecode(@$_REQUEST['page']);
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$page = repsym($page);
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if ( $page == "" ) {
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$page = DEFAULTP;
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}
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$filename = getf($page);
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if ( file_exists($filename) ) {
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$text = file_get_contents($filename);
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} else {
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if (file_exists(getf(NXTP))) {
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$p = file_get_contents(getf(NXTP));
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phead('404', 'view', tohtml($p), '');
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print " <div class=\"main\">\n\n";
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print tohtml($p);
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print " </div>\n";
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}
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pfooter();
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die();
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}
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} else if ( $action === 'all' && ALL ) {
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$names = greppages();
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$filelist = array();
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$sortby = isset($_REQUEST['sortby']) ? $_REQUEST['sortby'] : 'name';
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if (!in_array($sortby, array('name', 'recent'))) {
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$sortby = 'name';
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}
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if ($sortby === 'name') {
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natcasesort($names);
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foreach($names as $page) {
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$filelist[$page] = filemtime(getf($page));
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}
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} else {
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foreach($names as $page) {
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$filelist[$page] = filemtime(getf($page));
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}
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arsort($filelist, SORT_NUMERIC);
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}
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$html .= "<p>".__('Total').": ".count($names)." ".__("articles")."</p>";
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$html .= "<table><thead>";
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$html .= "<tr>".
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"<td>".(($sortby!='name')?("<a href=\"".SELF."?action=all&sortby=name\">Name</a>"):"<span class=\"sortby\">".__('Name')."</span>")."</td>".
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"<td>".(($sortby!='recent')?("<a href=\"".SELF."?action=all&sortby=recent\">".__('Modified')."</a>"):"<span class=\"sortby\">".__('Modified')."</span>")."</td>".
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"</tr></thead><tbody>";
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$dateformat = __('dateformat', TITLE_DATE);
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foreach ($filelist as $pname => $pdate) {
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$html .= "<tr>".
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"<td>".linkpage($pname, $pname)."</td>".
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"<td valign=\"top\"><nobr>".date( $dateformat, $pdate)."</nobr></td>".
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"</tr>\n";
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}
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$html .= "</tbody></table>\n";
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}
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$html .= empty($text) ? '' : tohtml($text);
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$datetime = '';
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if (($action === 'all') && ALL) {
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$title = __(ALLTITLE);
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} else if ($filename != '') {
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$title = $page;
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$dateformat = __('dateformat', TITLE_DATE);
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if ( $dateformat ) {
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$datetime = "<span class=\"titledate\">" . date($dateformat, @filemtime($filename)) . "</span>";
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}
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} else {
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$title = __($action);
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}
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phead($title, $action, $html, $datetime);
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if (file_exists(getf(SIDEBAR))) {
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$sb = file_get_contents(getf(SIDEBAR));
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if (SIDEBAR != '') {
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print " <div class=\"sidebar\">\n\n";
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$text = $sb;
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print tohtml($text);
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print " </div>\n";
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}
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}
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print " <div class=\"main\">\n\n";
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print "$html\n";
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print " </div>\n";
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pfooter();
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}
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main();
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