327 lines
9.5 KiB
PHP
327 lines
9.5 KiB
PHP
<?php
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/*
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* speedie-blog
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*
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* Copyright (C) 2007-2011 Steven Frank <http://stevenf.com/>
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* Copyright (C) 2023 speedie <speedie@speedie.site>
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*
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* See LICENSE.blog file for copyright and license details.
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*/
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spl_autoload_register(function($class){
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require str_replace('\\', DIRECTORY_SEPARATOR, ltrim($class, '\\')).'.php';
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});
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use md\MarkdownExtra;
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define('BLOG_PATH', dirname(__FILE__). '/articles');
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define('BLOG_EXT', 'md');
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define('BLOG_TITLE', "speedie's blog");
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define('BLOG_DESC', "speedie's blog, about stuff I want to talk about.");
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define('LATEST_TEXT', "Latest blog post: ");
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define('BLOG_URL', "https://speedie.site/blog");
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define('DISPLAY_NUM', false);
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define('DISPLAY_ID', false);
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define('BASE_URI', str_replace('/index.php', '', $_SERVER['SCRIPT_NAME']));
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define('SELF', $_SERVER['SCRIPT_NAME']);
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define('VIEW', '');
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define('ENABLE_TITLE', true);
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define('ENABLE_HEAD', true);
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define('ENABLE_FOOTER', true);
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define('META_DESC', true);
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define('META_ENC', true);
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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 $text;
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}
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function printHeader($title, $action, $html) {
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// TODO: Improve this garbage, I suck at PHP and this is just stuff I found on the internet.
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if (META_DESC) {
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$nhtml = $html;
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$nhtml = preg_replace( '@<p\b[^>]*>(?=.*?<a\b[^>]*>).*?<\@p>@si', '', $nhtml);
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$nhtml = preg_replace( '@<(li)[^>]*?>.*?</\\1>@si', '', $nhtml);
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$nhtml = preg_replace( '@<(ul)[^>]*?>.*?</\\1>@si', '', $nhtml);
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$nhtml = strip_tags($nhtml);
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$nhtml = preg_replace('/\s*$^\s*/m', "\n", $nhtml);
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$nhtml = truncate($nhtml, 512);
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}
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if (ENABLE_HEAD) {
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print "<!DOCTYPE html>\n";
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print "<head>\n";
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if (META_DESC && $action != 'home') {
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print "<meta name=\"description\" content=\"$nhtml\">\n";
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} else if (META_DESC) {
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print "<meta name=\"description\" content=". BLOG_DESC .">\n";
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}
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if (ENABLE_TITLE) {
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print "<title>$title</title>\n";
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}
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include("php/header.php");
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print " </head>\n";
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}
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print " <body>\n";
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print "<div class=\"content\">\n\n";
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}
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function printFooter() {
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if (ENABLE_FOOTER) {
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print " </body>\n";
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print "<footer>\n";
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include("php/footer.php");
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print "</footer>\n";
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}
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}
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function getDateForPage($pageName, $pageDate) {
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$file = BLOG_PATH . "/$pageName." . BLOG_EXT . ".date";
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if (file_exists($file)) {
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return file_get_contents($file);
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} else {
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return 0;
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}
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}
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function getAllPageNames($path = "") {
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$filenames = array();
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$dir = opendir(BLOG_PATH . "/$path" );
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while ( $filename = readdir($dir) ) {
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if ( $filename[0] == "." ) {
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continue;
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}
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if ( is_dir( BLOG_PATH . "/$path/$filename" ) ) {
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array_push($filenames, ...getAllPageNames( "$path/$filename" ) );
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continue;
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}
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if ( preg_match("/".BLOG_EXT."$/", $filename) != 1) {
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continue;
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}
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$filename = substr($filename, 0, -(strlen(BLOG_EXT)+1) );
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$filenames[] = substr("$path/$filename", 1);
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}
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closedir($dir);
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return $filenames;
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}
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function fileNameForPage($page) {
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return BLOG_PATH . "/$page." . BLOG_EXT;
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}
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function dateForPage($page) {
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$file = BLOG_PATH . "/$page." . BLOG_EXT . ".date";
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if (file_exists($file)) {
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return file_get_contents($file);
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}
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}
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function numForPage($page) {
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$file = BLOG_PATH . "/$page." . BLOG_EXT . ".num";
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return file_get_contents($file);
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}
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function sanitizeFilename($inFileName) {
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return str_replace(array('~', '..', '\\', ':', '|', '&', '.', '+', '!'), '-', $inFileName);
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}
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function pageURL($page) {
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return SELF . VIEW . "/".str_replace("%2F", "/", str_replace("%23", "#", urlencode(sanitizeFilename($page))));
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}
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function pageLink($page, $title, $attributes="") {
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return "<a href=\"" . pageURL($page) ."\"$attributes>$title</a>";
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}
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function toHTMLID($noid) {
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return str_replace(" ", "-", $noid);
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}
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function toHTML($inText) {
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$parser = new MarkdownExtra;
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$parser->no_markup = true;
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$outHTML = $parser->transform($inText);
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preg_match_all("/\[\[(.*?)\]\]/", $outHTML, $matches, PREG_PATTERN_ORDER);
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for ($i = 0; $i < count($matches[0]); $i++) {
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$fullLinkText = $matches[1][$i];
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$linkTitleSplit = explode('|', $fullLinkText);
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$linkedPage = $linkTitleSplit[0]; // split away an eventual link text
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$linkText = (count($linkTitleSplit) > 1) ? $linkTitleSplit[1] : $linkedPage;
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$pagePart = explode('#', $linkedPage)[0]; // split away an eventual anchor part
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$linkedFilename = fileNameForPage(sanitizeFilename($pagePart));
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$exists = file_exists($linkedFilename);
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$outHTML = str_replace("[[$fullLinkText]]",
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pageLink($linkedPage, $linkText, ($exists? "" : " class=\"noexist\"")), $outHTML);
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}
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$outHTML = preg_replace("/\{\{(.*?)\}\}/", "<img src=\"" . BASE_URI . "/images/\\1\" alt=\"\\1\" />", $outHTML);
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preg_match_all("/<h([1-4])>(.*?)<\/h\\1>/", $outHTML, $matches, PREG_PATTERN_ORDER);
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for ($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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$outHTML = str_replace("$prefix$caption$suffix",
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"$prefix<a id=\"".toHTMLID($caption)."\">$caption</a>$suffix", $outHTML);
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*/
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}
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return $outHTML;
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}
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$action = isset($_REQUEST['action']) ? $_REQUEST['action'] : 'view';
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$newPage = "";
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$text = "";
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$html = "";
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$rss = "";
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$page = preg_match('@^/@', @$_SERVER["PATH_INFO"]) ?
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urldecode(substr($_SERVER["PATH_INFO"], 1)) : urldecode(@$_REQUEST['page']);
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$page = sanitizeFilename($page);
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if ($page != '') {
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$filename = fileNameForPage($page);
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if ( file_exists($filename) ) {
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$text = file_get_contents($filename);
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} else {
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$newPage = NULL;
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include('php/404.php');
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die();
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}
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} else {
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$action = 'home';
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}
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if ( $action === 'home') {
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$pageNames = getAllPageNames();
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$filelist = array();
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$sortBy = isset($_REQUEST['sortBy']) ? $_REQUEST['sortBy'] : 'name';
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foreach($pageNames as $page) {
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$filelist[$page] = numForPage($page);
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}
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arsort($filelist, SORT_NUMERIC);
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// Create the RSS feed
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$rss .= "<rss version=\"2.0\" xmlns:atom=\"http://www.w3.org/2005/Atom\">\n";
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$rss .= "<channel>\n";
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$rss .= " <title>". BLOG_TITLE ."</title>\n";
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$rss .= " <description>". BLOG_DESC ."</description>\n";
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$rss .= " <atom:link href=\"". BLOG_URL ."\" rel=\"self\" type=\"application/rss+xml\" />\n";
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// Print text before blog itself
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$html .= "<h2>Blog</h2>\n";
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$html .= " <p>This is a list of all my blog posts. If you prefer, you can also read them using your favorite RSS reader through <a href=\"rss.xml\">my feed.</a>\n";
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$html .= " <p>If you wish, you can also get site updates, through the <a href=\"updates.xml\">updates feed.</a> The feed is updated whenever there are important things to announce with the site, or a new release for my software is out.</p>\n";
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$html .= " <ul>\n";
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$f = "0";
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foreach ($filelist as $pageName => $pageDate) {
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if (DISPLAY_NUM) {
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$i += 1;
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$num = "$i ";
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}
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if (DISPLAY_ID) {
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$i = numForPage($pageName);
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$num = "$i";
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}
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$pubDate = date('r', strtotime(getDateForPage($pageName, $pageDate)));
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$link = pageURL($pageName, $pageName);
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$description = toHTML(file_get_contents(fileNameForPage($pageName)));
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$rss .= "<item>\n";
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$rss .= " <title>$pageName</title>\n";
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$rss .= " <link>$link</link>\n";
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$rss .= " <guid>$link</guid>\n";
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$rss .= " <pubDate>$pubDate</pubDate>\n";
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$rss .= " <description>\n";
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$rss .= " <![CDATA[\n";
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$rss .= " $description\n";
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$rss .= " ]]>\n";
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$rss .= " </description>\n";
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$rss .= "</item>\n";
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$html .= "<li>";
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if (!$f) {
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$html .= " <p class=\"latest\"><strong>$num</strong>".LATEST_TEXT.pageLink($pageName, $pageName).", written ".getDateForPage($pageName, $pageDate)."</p>";
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$f = 1;
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} else {
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$html .= " <p><strong>$num</strong> ".pageLink($pageName, $pageName).", written ".getDateForPage($pageName, $pageDate)."</p>";
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}
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$html .= "</li>\n";
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}
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$html .= "</ul>\n";
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// Write end of the page
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$html .= "<h3>Archived blog posts</h3>\n";
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$html .= " <p>Some blog posts have been archived because they're written out of frustration, are irrelevant or just aren't worth reading. You can still access the blog posts through these RSS feeds:</p>\n";
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$html .= "<ul>\n";
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$html .= " <li><a href=\"rss-archived-01.xml\">Blog post archive feed (1-36)</a></li>\n";
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$html .= " <li><a href=\"rss-archived-02.xml\">Blog post archive feed (37-49)</a></li>\n";
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$html .= "</ul>\n";
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// End the RSS feed
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$rss .= "</channel>\n";
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$rss .= "</rss>\n";
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if (file_get_contents('rss.xml') != $rss) {
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file_put_contents('rss.xml', $rss);
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}
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} else { // convert the page and view it
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$html .= empty($text) ? '' : toHTML($text);
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}
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// All blog posts
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if (($action === 'home')) {
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$title = __("Blog posts");
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} else if ($filename != '') {
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$title = $page;
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}
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// print text
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printHeader($title, $action, $html);
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print " $html\n";
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print " </div>\n";
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printFooter();
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print "</html>\n";
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