<?php
-/////////////////////////////////////////////////
-// PukiWiki - Yet another WikiWikiWeb clone.
-//
-// $Id: showrss.inc.php,v 1.11 2003/12/03 12:30:02 arino Exp $
-//
-// modified by PANDA <panda@arino.jp>
+// PukiWiki - Yet another WikiWikiWeb clone
+// showrss.inc.php
+// Copyright:
+// 2002-2017 PukiWiki Development Team
+// 2002 PANDA <panda@arino.jp>
+// (Original)hiro_do3ob@yahoo.co.jp
+// License: GPL, same as PukiWiki
//
+// Show RSS (of remote site) plugin
+// NOTE:
+// * This plugin needs 'PHP xml extension'
+// * Cache data will be stored as CACHE_DIR/*.tmp
-/**
- *
- * showrss ¥×¥é¥°¥¤¥ó
- *
- * ¥é¥¤¥»¥ó¥¹¤Ï PukiWiki ËÜÂΤÈƱ¤¸¤¯ GNU General Public License (GPL) ¤Ç¤¹¡£
- * http://www.gnu.org/licenses/gpl.txt
- *
- * pukiwikiÍѤΥץ饰¥¤¥ó¤Ç¤¹¡£
- * pukiwiki1.3.2°Ê¾å¤ÇÆ°¤¯¤È»×¤¤¤Þ¤¹¡£
- *
- * º£¤Î¤È¤³¤íÆ°ºî¤µ¤»¤ë¤¿¤á¤Ë¤ÏPHP ¤Î xml extension ¤¬É¬¿Ü¤Ç¤¹¡£PHP¤ËÁȤ߹þ¤Þ¤ì¤Æ¤Ê¤¤¾ì¹ç¤Ï¤½¤Ã¤±¤Ê¤¤¥¨¥é¡¼¤¬½Ð¤ë¤È»×¤¤¤Þ¤¹¡£
- * Àµµ¬É½¸½ or ʸ»úÎó´Ø¿ô¤Ç¤Ê¤ó¤È¤«¤Ê¤é¤Ê¤¯¤â¤Ê¤µ¤²¤Ê¤ó¤Ç¤¹¤¬¼ûÍפäƤɤ줯¤é¤¤¤¢¤ë¤Î¤«¤ï¤«¤é¤¤¤Î¤ÇÊÝα¤Ç¤¹¡£
- * mbstring ¤â¤¢¤ë¤Û¤¦¤¬¤¤¤¤¤Ç¤¹¡£
- *
- * ¤Ê¤¤¾ì¹ç¤Ï¡¢ jcode.phps ¤ò¤Á¤ç¤³¤Ã¤È¤¤¤¸¤Ã¤Æ mb_convert_encoding ¤È¤¤¤¦´Ø¿ô¤òÀë¸À¤·¤Æ¤ª¤±¤Ð¤È¤ê¤¢¤¨¤º¤½¤ì¤Ã¤Ý¤¯ÊÑ´¹¤Ç¤¤ë¤«¤â¤Ç¤¹¡£
- * http://www.spencernetwork.org/
- *
- * ¤´Ï¢ÍíÀè:
- * do3ob wiki -> http://do3ob.com/
- * email -> hiro_do3ob@yahoo.co.jp
- *
- * ÈòÆñ½ê -> http://do3ob.s20.xrea.com/
- *
- * version: Id:showrss.inc.php,v 1.40 2003/03/18 11:52:58 hiro Exp
- *
- */
+define('PLUGIN_SHOWRSS_USAGE', '#showrss(URI-to-RSS[,default|menubar|recent[,Cache-lifetime[,Show-timestamp]]])');
-// showrss¥×¥é¥°¥¤¥ó¤¬»ÈÍѲÄǽ¤«¤É¤¦¤«¤òɽ¼¨
+// Show related extensions are found or not
function plugin_showrss_action()
{
- $xml_extension = extension_loaded('xml');
- $mbstring_extension = extension_loaded('mbstring');
-
- $xml_msg = $xml_extension ? 'xml extension is loaded' : 'COLOR(RED){xml extension is not loaded}';
- $mbstring_msg = $mbstring_extension ? 'mbstring extension is loaded' : 'COLOR(RED){mbstring extension is not loaded}';
-
- $showrss_info = '';
- $showrss_info .= "| xml parser | $xml_msg |\n";
- $showrss_info .= "| multibyte | $mbstring_msg |\n";
+ if (PKWK_SAFE_MODE) die_message('PKWK_SAFE_MODE prohibit this');
- return array('msg' => 'showrss_info', 'body' => convert_html($showrss_info));
+ $body = '';
+ foreach(array('xml', 'mbstring') as $extension){
+ $$extension = extension_loaded($extension) ?
+ '&color(green){Found};' :
+ '&color(red){Not found};';
+ $body .= '| ' . $extension . ' extension | ' . $$extension . ' |' . "\n";
+ }
+ return array('msg' => 'showrss_info', 'body' => convert_html($body));
}
function plugin_showrss_convert()
{
- if (func_num_args() == 0)
- {
- // °ú¿ô¤¬¤Ê¤¤¾ì¹ç¤Ï¥¨¥é¡¼
- return "<p>showrss: no parameter(s).</p>\n";
- }
- if (!extension_loaded('xml'))
- {
- // xml ³ÈÄ¥µ¡Ç½¤¬Í¸ú¤Ç¤Ê¤¤¾ì¹ç¡£
- return "<p>showrss: xml extension is not loaded</p>\n";
- }
+ static $_xml;
- $array = func_get_args();
- $rssurl = $tmplname = $usecache = $usetimestamp = '';
+ if (! isset($_xml)) $_xml = extension_loaded('xml');
+ if (! $_xml) return '#showrss: xml extension is not found<br />' . "\n";
- switch (func_num_args())
- {
- case 4:
- $usetimestamp = trim($array[3]);
- case 3:
- $usecache = $array[2];
- case 2:
- $tmplname = strtolower(trim($array[1]));
- case 1:
- $rssurl = trim($array[0]);
- }
+ $num = func_num_args();
+ if ($num == 0) return PLUGIN_SHOWRSS_USAGE . '<br />' . "\n";
- // RSS ¥Ñ¥¹¤ÎÃÍ¥Á¥§¥Ã¥¯
- if (!is_url($rssurl))
- {
- return '<p>showrss: syntax error. '.htmlspecialchars($rssurl)."</p>\n";
+ $argv = func_get_args();
+ $timestamp = FALSE;
+ $cachehour = 0;
+ $template = $uri = '';
+ switch ($num) {
+ case 4: $timestamp = (trim($argv[3]) == '1'); /*FALLTHROUGH*/
+ case 3: $cachehour = trim($argv[2]); /*FALLTHROUGH*/
+ case 2: $template = strtolower(trim($argv[1]));/*FALLTHROUGH*/
+ case 1: $uri = trim($argv[0]);
}
- $class = "ShowRSS_html_$tmplname";
- if (!class_exists($class))
- {
- $class = 'ShowRSS_html';
- }
+ $class = ($template == '' || $template == 'default') ? 'ShowRSS_html' : 'ShowRSS_html_' . $template;
+ if (! class_exists($class)) $class = 'ShowRSS_html';
- list($rss,$time) = plugin_showrss_get_rss($rssurl,$usecache);
- if ($rss === FALSE)
- {
- return "<p>showrss: cannot get rss from server.</p>\n";
+ if (! is_numeric($cachehour))
+ return '#showrss: Cache-lifetime seems not numeric: ' . htmlsc($cachehour) . '<br />' . "\n";
+ if (! is_url($uri))
+ return '#showrss: Seems not URI: ' . htmlsc($uri) . '<br />' . "\n";
+
+ // Remove old caches in 5% rate
+ if (mt_rand(1, 20) === 1) {
+ plugin_showrss_cache_expire(24);
+ }
+ list($rss, $time) = plugin_showrss_get_rss($uri, $cachehour);
+ if ($rss === FALSE) return '#showrss: Failed fetching RSS from the server<br />' . "\n";
+ if (! is_array($rss)) {
+ // Show XML error message
+ return '#showrss: Error - ' . htmlsc($rss) . '<br />' . "\n";
+ }
+ $time_display = '';
+ if ($timestamp > 0) {
+ $time_display = '<p style="font-size:10px; font-weight:bold">Last-Modified:' .
+ get_date('Y/m/d H:i:s', $time) . '</p>';
}
$obj = new $class($rss);
-
- $timestamp = '';
- if ($usetimestamp > 0)
- {
- $time = get_date('Y/m/d H:i:s',$time);
- $timestamp = "<p style=\"font-size:10px; font-weight:bold\">Last-Modified:$time</p>";
- }
- return $obj->toString($timestamp);
+ return $obj->toString($time_display);
}
-// rssÇÛÎ󤫤éhtml¤òºî¤ë
+
+// Create HTML from RSS array()
class ShowRSS_html
{
var $items = array();
function ShowRSS_html($rss)
{
- foreach ($rss as $date=>$items)
- {
- foreach ($items as $item)
- {
- $link = $item['LINK'];
+ $this->__construct($rss);
+ }
+ function __construct($rss)
+ {
+ foreach ($rss as $date=>$items) {
+ foreach ($items as $item) {
+ $link = $item['LINK'];
$title = $item['TITLE'];
$passage = get_passage($item['_TIMESTAMP']);
- $link = "<a href=\"$link\" title=\"$title $passage\">$title</a>";
+ $link = '<a href="' . $link . '" title="' . $title . ' ' .
+ $passage . '" rel="nofollow">' . $title . '</a>';
$this->items[$date][] = $this->format_link($link);
}
}
}
+
function format_link($link)
{
- return "$link<br />\n";
+ return $link . '<br />' . "\n";
}
- function format_list($date,$str)
+
+ function format_list($date, $str)
{
return $str;
}
+
function format_body($str)
{
return $str;
}
+
function toString($timestamp)
{
$retval = '';
foreach ($this->items as $date=>$items)
- {
- $retval .= $this->format_list($date,join('',$items));
- }
+ $retval .= $this->format_list($date, join('', $items));
$retval = $this->format_body($retval);
return <<<EOD
<div{$this->class}>
EOD;
}
}
+
class ShowRSS_html_menubar extends ShowRSS_html
{
var $class = ' class="small"';
- function format_link($link)
- {
- return "<li>$link</li>\n";
+ function format_link($link) {
+ return '<li>' . $link . '</li>' . "\n";
}
- function format_body($str)
- {
- return "<ul class=\"recent_list\">\n$str</ul>\n";
+
+ function format_body($str) {
+ return '<ul class="recent_list">' . "\n" . $str . '</ul>' . "\n";
}
}
+
class ShowRSS_html_recent extends ShowRSS_html
{
var $class = ' class="small"';
- function format_link($link)
- {
- return "<li>$link</li>\n";
+ function format_link($link) {
+ return '<li>' . $link . '</li>' . "\n";
}
- function format_list($date,$str)
- {
- return "<strong>$date</strong>\n<ul class=\"recent_list\">\n$str</ul>\n";
+
+ function format_list($date, $str) {
+ return '<strong>' . $date . '</strong>' . "\n" .
+ '<ul class="recent_list">' . "\n" . $str . '</ul>' . "\n";
}
}
-// rss¤ò¼èÆÀ¤¹¤ë
-function plugin_showrss_get_rss($target,$usecache)
+
+// Get and save RSS
+function plugin_showrss_get_rss($target, $cachehour)
{
- $buf = '';
+ $buf = '';
$time = NULL;
- if ($usecache)
- {
- // ´ü¸ÂÀÚ¤ì¤Î¥¥ã¥Ã¥·¥å¤ò¥¯¥ê¥¢
- plugin_showrss_cache_expire($usecache);
-
- // ¥¥ã¥Ã¥·¥å¤¬¤¢¤ì¤Ð¼èÆÀ¤¹¤ë
+ if ($cachehour) {
$filename = CACHE_DIR . encode($target) . '.tmp';
- if (is_readable($filename))
- {
- $buf = join('',file($filename));
+ // Remove expired cache
+ plugin_showrss_cache_expire_file($filename, $cachehour);
+ // Get the cache not expired
+ if (is_readable($filename)) {
+ $buf = join('', file($filename));
$time = filemtime($filename) - LOCALZONE;
}
}
- if ($time === NULL)
- {
- // rssËÜÂΤò¼èÆÀ
- $data = http_request($target);
- if ($data['rc'] !== 200)
- {
- return array(FALSE,0);
+
+ if (is_null($time)) {
+ // Newly get RSS
+ $data = pkwk_http_request($target);
+ if ($data['rc'] !== 200) {
+ return array(FALSE, 0);
}
$buf = $data['data'];
$time = UTIME;
- // ¥¥ã¥Ã¥·¥å¤òÊݸ
- if ($usecache)
- {
+
+ // Save RSS into cache
+ if ($cachehour) {
$fp = fopen($filename, 'w');
- fwrite($fp,$buf);
+ fwrite($fp, $buf);
fclose($fp);
}
}
-
- // parse
+ // Parse
$obj = new ShowRSS_XML();
+ $obj->modified_date = (is_null($time) ? UTIME : $time);
return array($obj->parse($buf),$time);
}
-// ´ü¸ÂÀÚ¤ì¤Î¥¥ã¥Ã¥·¥å¤ò¥¯¥ê¥¢
-function plugin_showrss_cache_expire($usecache)
-{
- $expire = $usecache * 60 * 60; // Hour
+// Remove cache if expired limit exeed
+function plugin_showrss_cache_expire($cachehour)
+{
+ $expire = $cachehour * 60 * 60; // Hour
$dh = dir(CACHE_DIR);
- while (($file = $dh->read()) !== FALSE)
- {
- if (substr($file,-4) != '.tmp')
- {
- continue;
- }
- $file = CACHE_DIR.$file;
+ while (($file = $dh->read()) !== FALSE) {
+ if (substr($file, -4) != '.tmp') continue;
+ $file = CACHE_DIR . $file;
$last = time() - filemtime($file);
-
- if ($last > $expire)
- {
- unlink($file);
- }
+ if ($last > $expire) unlink($file);
}
$dh->close();
}
-// rss¤ò¼èÆÀ¡¦ÇÛÎó²½
+
+/**
+ * Remove single file cache if expired limit exeed
+ * @param $filename
+ * @param $cachehour
+ */
+function plugin_showrss_cache_expire_file($filename, $cachehour)
+{
+ $expire = $cachehour * 60 * 60; // Hour
+ $last = time() - filemtime($filename);
+ if ($last > $expire) {
+ unlink($filename);
+ }
+}
+
+// Get RSS and array() them
class ShowRSS_XML
{
var $items;
var $item;
var $is_item;
var $tag;
+ var $encoding;
+ var $modified_date;
function parse($buf)
{
- // ½é´ü²½
- $this->items = array();
- $this->item = array();
+ $this->items = array();
+ $this->item = array();
$this->is_item = FALSE;
- $this->tag = '';
-
- $xml_parser = xml_parser_create();
- xml_set_element_handler($xml_parser,array(&$this,'start_element'),array(&$this,'end_element'));
- xml_set_character_data_handler($xml_parser,array(&$this,'character_data'));
-
- if (!xml_parse($xml_parser,$buf,1))
- {
- return(sprintf('XML error: %s at line %d in %s',
+ $this->tag = '';
+ $utf8 = 'UTF-8';
+ $this->encoding = $utf8;
+ // Detect encoding
+ $matches = array();
+ if(preg_match('/<\?xml [^>]*\bencoding="([a-z0-9-_]+)"/i', $buf, $matches)) {
+ $encoding = $matches[1];
+ if (strtoupper($encoding) !== $utf8) {
+ // xml_parse() fails on non UTF-8 encoding attr in XML decLaration
+ $buf = preg_replace('/<\?xml ([^>]*)\bencoding="[a-z0-9-_]+"/i', '<?xml $1', $buf);
+ // xml_parse() requires UTF-8 compatible encoding
+ $buf = mb_convert_encoding($buf, $utf8, $encoding);
+ }
+ }
+ // Parsing
+ $xml_parser = xml_parser_create($utf8);
+ xml_set_element_handler($xml_parser, array(& $this, 'start_element'), array(& $this, 'end_element'));
+ xml_set_character_data_handler($xml_parser, array(& $this, 'character_data'));
+ if (! xml_parse($xml_parser, $buf, 1)) {
+ return sprintf('XML error: %s at line %d in %s',
xml_error_string(xml_get_error_code($xml_parser)),
- xml_get_current_line_number($xml_parser),$buf));
+ xml_get_current_line_number($xml_parser),
+ (strlen($buf) < 500 ? $buf : substr($buf, 0, 500) . '...'));
}
xml_parser_free($xml_parser);
-
return $this->items;
}
+
function escape($str)
{
- // RSSÃæ¤Î "< > &" ¤Ê¤É¤ò °ìö "< > &" ¤ËÌᤷ¡¢ ¡ã "&" ¤¬ "&amp;" ¤Ë¤Ê¤Ã¤Á¤ã¤¦¤ÎÂкö
- // ¤½¤Î¸å¤â¤Ã¤«¤¤"< > &"¤Ê¤É¤ò"< > &"¤Ë¤¹¤ë ¡ã XSSÂкö¡©
+ // Unescape already-escaped chars (<, >, &, ...) in RSS body before htmlsc()
$str = strtr($str, array_flip(get_html_translation_table(ENT_COMPAT)));
- $str = htmlspecialchars($str);
-
- // ʸ»ú¥³¡¼¥ÉÊÑ´¹
- $str = mb_convert_encoding($str, SOURCE_ENCODING, 'auto');
-
+ // Escape
+ $str = htmlsc($str, ENT_COMPAT, $this->encoding);
+ // Encoding conversion
+ $str = mb_convert_encoding($str, SOURCE_ENCODING, $this->encoding);
return trim($str);
}
- // ¥¿¥°³«»Ï
- function start_element($parser,$name,$attrs)
+ // Tag start
+ function start_element($parser, $name, $attrs)
{
- if ($this->is_item)
- {
- $this->tag = $name;
- }
- else if ($name == 'ITEM')
- {
+ if ($this->is_item) {
+ $this->tag = $name;
+ } else if ($name == 'ITEM') {
$this->is_item = TRUE;
}
}
- // ¥¿¥°½ªÎ»
- function end_element($parser,$name)
+
+ // Tag end
+ function end_element($parser, $name)
{
- if (!$this->is_item or $name != 'ITEM')
- {
- return;
- }
- $item = array_map(array(&$this,'escape'),$this->item);
+ if (! $this->is_item || $name != 'ITEM') return;
+ $item = array_map(array(& $this, 'escape'), $this->item);
$this->item = array();
- if (array_key_exists('DC:DATE',$item))
- {
- $time = plugin_showrss_get_timestamp($item['DC:DATE']);
- }
- else if (array_key_exists('PUBDATE',$item))
- {
- $time = plugin_showrss_get_timestamp($item['PUBDATE']);
- }
- else if (array_key_exists('DESCRIPTION',$item)
- and ($description = trim($item['DESCRIPTION'])) != ''
- and ($time = strtotime($description)) != -1)
- {
- $time -= LOCALZONE;
- }
- else
- {
- $time = time() - LOCALZONE;
+ if (isset($item['DC:DATE'])) {
+ $time = plugin_showrss_get_timestamp($item['DC:DATE'], $this->modified_date);
+
+ } else if (isset($item['PUBDATE'])) {
+ $time = plugin_showrss_get_timestamp($item['PUBDATE'], $this->modified_date);
+ } else {
+ $time_from_desc = FALSE;
+ if (isset($item['DESCRIPTION']) &&
+ (($description = trim($item['DESCRIPTION'])) != '')) {
+ $time_from_desc = strtotime($description);
+ }
+ if ($time_from_desc !== FALSE && $time_from_desc !== -1) {
+ $time = $time_from_desc - LOCALZONE;
+ } else {
+ $time = time() - LOCALZONE;
+ }
}
$item['_TIMESTAMP'] = $time;
- $date = get_date('Y-m-d',$item['_TIMESTAMP']);
+ $date = get_date('Y-m-d', $item['_TIMESTAMP']);
$this->items[$date][] = $item;
- $this->is_item = FALSE;
+ $this->is_item = FALSE;
}
- // ¥¥ã¥é¥¯¥¿
- function character_data($parser,$data)
+
+ function character_data($parser, $data)
{
- if (!$this->is_item)
- {
- return;
- }
- if (!array_key_exists($this->tag,$this->item))
- {
- $this->item[$this->tag] = '';
- }
+ if (! $this->is_item) return;
+ if (! isset($this->item[$this->tag])) $this->item[$this->tag] = '';
$this->item[$this->tag] .= $data;
}
}
-function plugin_showrss_get_timestamp($str)
+
+function plugin_showrss_get_timestamp($str, $default_date)
{
- if (($str = trim($str)) == '')
- {
- return UTIME;
- }
- if (!preg_match('/(\d{4}-\d{2}-\d{2})T(\d{2}:\d{2}:\d{2})(([+-])(\d{2}):(\d{2}))?/',$str,$matches))
- {
+ $str = trim($str);
+ if ($str == '') return UTIME;
+
+ $matches = array();
+ if (preg_match('/(\d{4}-\d{2}-\d{2})T(\d{2}:\d{2}:\d{2})(([+-])(\d{2}):(\d{2}))?/', $str, $matches)) {
+ $time = strtotime($matches[1] . ' ' . $matches[2]);
+ if ($time === FALSE || $time === -1) {
+ $time = $default_date;
+ } else if (isset($matches[3])) {
+ $diff = ($matches[5] * 60 + $matches[6]) * 60;
+ $time += ($matches[4] == '-' ? $diff : -$diff);
+ }
+ return $time;
+ } else {
$time = strtotime($str);
- return ($time == -1) ? UTIME : $time - LOCALZONE;
- }
- $str = $matches[1];
- $time = strtotime($matches[1].' '.$matches[2]);
- if (!empty($matches[3]))
- {
- $diff = ($matches[5]*60+$matches[6])*60;
- $time += ($matches[4] == '-' ? $diff : -$diff);
+ return ($time === FALSE || $time === -1) ? $default_date : $time - LOCALZONE;
}
- return $time;
}
-?>
OSDN Git Service
