flatpress/fp-plugins/prettyurls/plugin.prettyurls.php

524 lines
11 KiB
PHP

<?php
/*
Plugin Name: PrettyURLs
Plugin URI: http://flatpress.nowherland.it/
Description: Url prettifier (powered by htaccess)
Author: NoWhereMan (E.Vacchi)
Version: 3.0
Author URI: http://www.nowhereland.it
*/
/**
* Place where the index is stored
*/
define('PRETTYURLS_CACHE', CACHE_DIR . '%%prettyurls-index.tmp');
define('PRETTYURLS_CATS', CACHE_DIR . '%%prettyurls-cats.tmp');
/**
* File existance check
*/
# memo
# register_plugin_setup('plugin_id', 'setup_func');
function plugin_prettyurls_setup() {
if (file_exists(ABS_PATH . '.htaccess'))
return 1;
if (!is_writable(ABS_PATH)) {
return -2;
}
return 1;
}
class Plugin_PrettyURLs {
var $index = array();
var $status = 0;
var $date_handled = false;
var $categories = null;
function categories($force=true) {
if ($this->categories)
return;
if ($force || !file_exists(PRETTYURLS_CATS)) {
$d = entry_categories_get('defs');
$list = array();
foreach ($d as $k=>$v) {
$list[$k] = sanitize_title($v);
}
io_write_file(PRETTYURLS_CATS, serialize($list));
} else {
$f = io_load_file(PRETTYURLS_CATS);
$list = unserialize($f);
}
$this->categories = $list;
}
function md5($id, $title) {
$date = date_from_id($id);
return md5($date['y'].$date['m'].$date['d'].$title);
}
function permalink($str, $id) {
global $fpdb, $post;
$title = sanitize_title($post['subject']);
$date = date_from_id($id);
// yeah, hackish, I know...
return BLOG_BASEURL . "20{$date['y']}/{$date['m']}/{$date['d']}/$title/";
}
function commentlink($str, $id) {
$link = $this->permalink($str, $id);
return $link . "comments/";
}
function feedlink($str, $type) {
return BLOG_BASEURL . "feed/{$type}/";
}
function commentsfeedlink($str, $type, $id) {
$link = $this->commentlink($str, $id);
return $link . "feed/{$type}/";
}
function staticlink($str, $id) {
return BLOG_BASEURL . "$id/";
}
function categorylink($str, $catid) {
return BLOG_BASEURL . "category/{$this->categories[$catid]}/";
}
function yearlink($str, $y) {
return BLOG_BASEURL . "20$y/";
}
function monthlink($str, $y, $m) {
return $this->yearlink($str, $y) . "$m/";
}
function daylink($str, $y, $m, $d) {
return $this->daylink($str, $y, $m) . "$d/";
}
function cache_create() {
$this->index = array();
$o =& entry_init();
$entries = $o->getList();
foreach ($entries as $id => $contents) {
$date = date_from_id($id);
$md5 = md5(sanitize_title($contents['subject']));
$this->index[$date['y']][$date['m']][$date['d']][$md5] = $id;
}
$this->cache_save();
}
function handle_categories($matches) {
if (!$this->categories)
return;
if ($c = array_search($matches[1], $this->categories))
$_GET['category'] = $c;
}
/*
named matches are not supported here
*/
function handle_date($matches) {
$_GET['y'] = $matches[1];
if (isset($matches[3])) $_GET['m'] = $matches[3] ;
if (isset($matches[5])) $_GET['d'] = $matches[5];
$this->date_handled = true;
}
function handle_static($matches) {
$_GET['page'] = $matches[1];
$this->status = 2;
}
function handle_entry($matches) {
if (isset($this->index[$_GET['y']][$_GET['m']][$_GET['d']][md5($matches[1])]))
$_GET['entry'] = $this->index[$_GET['y']][$_GET['m']][$_GET['d']][md5($matches[1])];
}
function handle_page($matches) {
$_GET['paged'] = $matches[1];
$this->status = 2;
}
function handle_comment($matches) {
$_GET['comments'] = true;
}
function handle_feed($matches) {
$_GET['feed'] = isset($matches[2])? $matches[2]:'rss2';
}
/*
* here is where the real work is done.
*
* First we load the cache if exists;
*
* We check then if the GET request contains a 'title'
* if so, we'll need date and time to construct the md5 sum
* with which we index the cache array
*
* If that entry exists, we set $_GET['entry'] to that ID,
* so that FlatPress can find it where it is expected
*
*/
function cache_init() {
if ($f = io_load_file(PRETTYURLS_CACHE))
$this->index = unserialize($f);
if (!$this->index)
$this->cache_create();
$this->categories(false);
if (!defined('MOD_INDEX'))
return;
if (strpos($_SERVER['REQUEST_URI'], BLOG_ROOT)!==false) {
$url = $_SERVER['REQUEST_URI'];
$del = BLOG_ROOT;
if (strpos($url, 'index.php')!==false)
$del = $del . 'index.php/';
$url = substr($url, strlen($del)-1);
}
if ($url=='/')
return;
$matches = array();
// removes querystrings
if ($i = strpos($url, '?'))
$url = substr($url, 0, $i);
if (strrpos($url, '/') != (strlen($url)-1)) {
$url .= '/';
}
//date
$url = preg_replace_callback(
'!^/[0-9]{2}(?P<y>[0-9]{2})(/(?P<m>[0-9]{2})(/(?P<d>[0-9]{2}))?)?!',
array(&$this, 'handle_date'),
$url
);
if (!$this->date_handled){
// static page
$url = preg_replace_callback('|^/([a-zA-Z0-9_-]+)/$|', array(&$this, 'handle_static'), $url);
if ($this->status == 2)
return;
}
$url = preg_replace_callback('{category/([^/]+)}', array(&$this, 'handle_categories'), $url);
$url = preg_replace_callback('|page/([0-9]+)/$|', array(&$this, 'handle_page'), $url);
if ($this->status == 2)
return;
if ($this->date_handled){
$url = preg_replace_callback('|^/([^/]+)|', array(&$this, 'handle_entry'), $url);
// if status = 2
/*
utils_error(404);
*/
$url = preg_replace_callback('|^/comments|', array(&$this, 'handle_comment'), $url);
}
$url = preg_replace_callback('|^/feed(/([^/]*))?|', array(&$this, 'handle_feed'), $url);
}
function cache_delete_elem($id, $date) {
# is this a title change?
if (isset($this->index[ $date['y'] ] [ $date['m'] ][ $date['d'] ]))
$hash = array_search($id, $this->index[ $date['y'] ] [ $date['m'] ][ $date['d'] ]);
else
return;
if ($hash) {
unset($this->index[ $date['y'] ] [ $date['m'] ][ $date['d'] ][ $hash ]);
if (empty($this->index[ $date['y'] ] [ $date['m'] ][ $date['d'] ])) {
unset($this->index[ $date['y'] ] [ $date['m'] ][ $date['d'] ]);
if (empty($this->index[ $date['y'] ] [ $date['m'] ])) {
unset($this->index[ $date['y'] ] [ $date['m'] ]);
if (empty($this->index[ $date['y'] ])) {
unset($this->index[ $date['y'] ]);
}
}
}
}
}
function cache_add($id, &$arr) {
$date = date_from_id($id);
$title = sanitize_title($arr['subject']);
$this->cache_delete_elem($id, $date);
$this->index[ $date['y'] ] [ $date['m'] ][ $date['d'] ][ md5($title) ] = $id;
$this->cache_save();
return true;
}
function cache_delete($id) {
$date = date_from_id($id);
$this->cache_delete_elem($id, $date);
$this->cache_save();
}
function cache_save() {
if ($this->index)
return io_write_file(PRETTYURLS_CACHE, serialize($this->index));
return true;
}
function nextprevlink($nextprev, $v) {
global $fpdb;
$q =& $fpdb->getQuery();
list($caption, $id) = call_user_func(array(&$q, 'get'.$nextprev));
if (!$id)
return array();
if ($q->single) {
$date = date_from_id($id);
$title = sanitize_title($caption);
$url = BLOG_BASEURL . "20{$date['y']}/{$date['m']}/{$date['d']}/$title/";
if ($v>0)
$caption = $caption . ' &raquo ';
else
$caption = ' &laquo ' . $caption;
return array($caption,$url);
}
// else, we build a complete url
$l = BLOG_BASEURL;
if (isset($_GET['category']) && is_numeric($_GET['category']))
$c = $this->categories[$_GET['category']];
elseif (isset($_GET['cat']) && is_numeric($_GET['cat']))
$c = 'category-' . $_GET['cat'] .'/';
$l .= $c;
if (isset($_GET['y']) && $_GET['y']) {
$l .= '20'. $_GET['y'] . '/';
if (isset($_GET['m']) && $_GET['m']) {
$l .= $_GET['m'] . '/';
if (isset($_GET['d']) && $_GET['d'])
$l .= $_GET['d'] . '/';
}
}
$page = 1;
if (isset($_GET['paged']) && $_GET['paged']>1) $page = $_GET['paged'];
$page += $v;
if ($page > 0) {
$l .= 'page/' . $page . '/';
}
return array($caption,$l);
}
}
global $plugin_prettyurls;
$plugin_prettyurls = new Plugin_PrettyURLs;
$plugin_prettyurls->categories();
if (!defined('MOD_ADMIN_PANEL')){
if (!function_exists('get_nextpage_link')) :
function get_nextpage_link() {
global $plugin_prettyurls;
return $plugin_prettyurls->nextprevlink('NextPage', 1);
}
function get_prevpage_link() {
global $plugin_prettyurls;
return $plugin_prettyurls->nextprevlink('PrevPage',-1);
}
endif;
}
add_filter('post_link', array(&$plugin_prettyurls,'permalink'), 0, 2);
add_filter('comments_link', array(&$plugin_prettyurls, 'commentlink'), 0, 2);
add_filter('feed_link', array(&$plugin_prettyurls, 'feedlink'), 0, 2);
add_filter('post_comments_feed_link', array(&$plugin_prettyurls, 'commentsfeedlink'), 0, 3);
add_filter('category_link', array(&$plugin_prettyurls,'categorylink'), 0, 2);
add_action('update_categories', array(&$plugin_prettyurls, 'categories'));
add_filter('year_link', array(&$plugin_prettyurls,'yearlink'), 0, 2);
add_filter('month_link', array(&$plugin_prettyurls,'monthlink'), 0, 3);
add_filter('day_link', array(&$plugin_prettyurls,'daylink'), 0, 4);
add_filter('publish_post', array(&$plugin_prettyurls, 'cache_add'), 5, 2);
add_filter('page_link', array(&$plugin_prettyurls, 'staticlink'), 0, 2);
add_filter('init', array(&$plugin_prettyurls, 'cache_init'));
// add_filter('cache_save', array(&$plugin_prettyurls, 'cache_save'));
add_filter('delete_post', array(&$plugin_prettyurls, 'cache_delete'));
if (class_exists('AdminPanelAction')){
class admin_plugin_prettyurls extends AdminPanelAction {
var $langres = 'plugin:prettyurls';
function setup() {
$this->smarty->assign('admin_resource', "plugin:prettyurls/admin.plugin.prettyurls");
$blogroot = BLOG_ROOT;
$f = ABS_PATH . '.htaccess';
$txt = io_load_file($f);
if (!$txt) {
$txt =<<<STR
# Thanks again WP :)
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase {$blogroot}
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . {$blogroot}index.php [L]
</IfModule>
STR;
}
$this->smarty->assign('cantsave',
( (file_exists($f) && !is_writable($f)) && !is_writable(ABS_PATH) )
);
$this->smarty->assign('htaccess', $txt);
}
function onsubmit() {
global $fp_config;
if (!empty($_POST['htaccess']) && io_write_file(ABS_PATH.'.htaccess', $_POST['htaccess'])){
$this->smarty->assign('success', 1);
} else {
$this->smarty->assign('success', -1);
}
return 2;
}
}
admin_addpanelaction('plugin', 'prettyurls', true);
}
?>