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-rw-r--r--web/lib/feedcreator.class.php3084
1 files changed, 1542 insertions, 1542 deletions
diff --git a/web/lib/feedcreator.class.php b/web/lib/feedcreator.class.php
index e881f252..a1fe24c9 100644
--- a/web/lib/feedcreator.class.php
+++ b/web/lib/feedcreator.class.php
@@ -1,1542 +1,1542 @@
-<?php
-/***************************************************************************
-
-FeedCreator class v1.7.2
-originally (c) Kai Blankenhorn
-www.bitfolge.de
-kaib@bitfolge.de
-v1.3 work by Scott Reynen (scott@randomchaos.com) and Kai Blankenhorn
-v1.5 OPML support by Dirk Clemens
-
-This library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Lesser General Public
-License as published by the Free Software Foundation; either
-version 2.1 of the License, or (at your option) any later version.
-
-This library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
-****************************************************************************
-
-
-Changelog:
-
-v1.7.2 10-11-04
- license changed to LGPL
-
-v1.7.1
- fixed a syntax bug
- fixed left over debug code
-
-v1.7 07-18-04
- added HTML and JavaScript feeds (configurable via CSS) (thanks to Pascal Van Hecke)
- added HTML descriptions for all feed formats (thanks to Pascal Van Hecke)
- added a switch to select an external stylesheet (thanks to Pascal Van Hecke)
- changed default content-type to application/xml
- added character encoding setting
- fixed numerous smaller bugs (thanks to Sören Fuhrmann of golem.de)
- improved changing ATOM versions handling (thanks to August Trometer)
- improved the UniversalFeedCreator's useCached method (thanks to Sören Fuhrmann of golem.de)
- added charset output in HTTP headers (thanks to Sören Fuhrmann of golem.de)
- added Slashdot namespace to RSS 1.0 (thanks to Sören Fuhrmann of golem.de)
-
-v1.6 05-10-04
- added stylesheet to RSS 1.0 feeds
- fixed generator comment (thanks Kevin L. Papendick and Tanguy Pruvot)
- fixed RFC822 date bug (thanks Tanguy Pruvot)
- added TimeZone customization for RFC8601 (thanks Tanguy Pruvot)
- fixed Content-type could be empty (thanks Tanguy Pruvot)
- fixed author/creator in RSS1.0 (thanks Tanguy Pruvot)
-
-v1.6 beta 02-28-04
- added Atom 0.3 support (not all features, though)
- improved OPML 1.0 support (hopefully - added more elements)
- added support for arbitrary additional elements (use with caution)
- code beautification :-)
- considered beta due to some internal changes
-
-v1.5.1 01-27-04
- fixed some RSS 1.0 glitches (thanks to Stéphane Vanpoperynghe)
- fixed some inconsistencies between documentation and code (thanks to Timothy Martin)
-
-v1.5 01-06-04
- added support for OPML 1.0
- added more documentation
-
-v1.4 11-11-03
- optional feed saving and caching
- improved documentation
- minor improvements
-
-v1.3 10-02-03
- renamed to FeedCreator, as it not only creates RSS anymore
- added support for mbox
- tentative support for echo/necho/atom/pie/???
-
-v1.2 07-20-03
- intelligent auto-truncating of RSS 0.91 attributes
- don't create some attributes when they're not set
- documentation improved
- fixed a real and a possible bug with date conversions
- code cleanup
-
-v1.1 06-29-03
- added images to feeds
- now includes most RSS 0.91 attributes
- added RSS 2.0 feeds
-
-v1.0 06-24-03
- initial release
-
-
-
-***************************************************************************/
-
-/*** GENERAL USAGE *********************************************************
-
-include("feedcreator.class.php");
-
-$rss = new UniversalFeedCreator();
-$rss->useCached(); // use cached version if age<1 hour
-$rss->title = "PHP news";
-$rss->description = "daily news from the PHP scripting world";
-
-//optional
-$rss->descriptionTruncSize = 500;
-$rss->descriptionHtmlSyndicated = true;
-
-$rss->link = "http://www.dailyphp.net/news";
-$rss->syndicationURL = "http://www.dailyphp.net/".$_SERVER["PHP_SELF"];
-
-$image = new FeedImage();
-$image->title = "dailyphp.net logo";
-$image->url = "http://www.dailyphp.net/images/logo.gif";
-$image->link = "http://www.dailyphp.net";
-$image->description = "Feed provided by dailyphp.net. Click to visit.";
-
-//optional
-$image->descriptionTruncSize = 500;
-$image->descriptionHtmlSyndicated = true;
-
-$rss->image = $image;
-
-// get your news items from somewhere, e.g. your database:
-mysql_select_db($dbHost, $dbUser, $dbPass);
-$res = mysql_query("SELECT * FROM news ORDER BY newsdate DESC");
-while ($data = mysql_fetch_object($res)) {
- $item = new FeedItem();
- $item->title = $data->title;
- $item->link = $data->url;
- $item->description = $data->short;
-
- //optional
- item->descriptionTruncSize = 500;
- item->descriptionHtmlSyndicated = true;
-
- $item->date = $data->newsdate;
- $item->source = "http://www.dailyphp.net";
- $item->author = "John Doe";
-
- $rss->addItem($item);
-}
-
-// valid format strings are: RSS0.91, RSS1.0, RSS2.0, PIE0.1 (deprecated),
-// MBOX, OPML, ATOM, ATOM0.3, HTML, JS
-echo $rss->saveFeed("RSS1.0", "news/feed.xml");
-
-
-***************************************************************************
-* A little setup *
-**************************************************************************/
-
-// your local timezone, set to "" to disable or for GMT
-define("TIME_ZONE","+01:00");
-
-
-
-
-/**
- * Version string.
- **/
-define("FEEDCREATOR_VERSION", "FeedCreator 1.7.2");
-
-
-
-/**
- * A FeedItem is a part of a FeedCreator feed.
- *
- * @author Kai Blankenhorn <kaib@bitfolge.de>
- * @since 1.3
- */
-class FeedItem extends HtmlDescribable {
- /**
- * Mandatory attributes of an item.
- */
- var $title, $description, $link;
-
- /**
- * Optional attributes of an item.
- */
- var $author, $authorEmail, $image, $category, $comments, $guid, $source, $creator;
-
- /**
- * Publishing date of an item. May be in one of the following formats:
- *
- * RFC 822:
- * "Mon, 20 Jan 03 18:05:41 +0400"
- * "20 Jan 03 18:05:41 +0000"
- *
- * ISO 8601:
- * "2003-01-20T18:05:41+04:00"
- *
- * Unix:
- * 1043082341
- */
- var $date;
-
- /**
- * Any additional elements to include as an assiciated array. All $key => $value pairs
- * will be included unencoded in the feed item in the form
- * <$key>$value</$key>
- * Again: No encoding will be used! This means you can invalidate or enhance the feed
- * if $value contains markup. This may be abused to embed tags not implemented by
- * the FeedCreator class used.
- */
- var $additionalElements = Array();
-
- // on hold
- // var $source;
-}
-
-
-
-/**
- * An FeedImage may be added to a FeedCreator feed.
- * @author Kai Blankenhorn <kaib@bitfolge.de>
- * @since 1.3
- */
-class FeedImage extends HtmlDescribable {
- /**
- * Mandatory attributes of an image.
- */
- var $title, $url, $link;
-
- /**
- * Optional attributes of an image.
- */
- var $width, $height, $description;
-}
-
-
-
-/**
- * An HtmlDescribable is an item within a feed that can have a description that may
- * include HTML markup.
- */
-class HtmlDescribable {
- /**
- * Indicates whether the description field should be rendered in HTML.
- */
- var $descriptionHtmlSyndicated;
-
- /**
- * Indicates whether and to how many characters a description should be truncated.
- */
- var $descriptionTruncSize;
-
- /**
- * Returns a formatted description field, depending on descriptionHtmlSyndicated and
- * $descriptionTruncSize properties
- * @return string the formatted description
- */
- function getDescription() {
- $descriptionField = new FeedHtmlField($this->description);
- $descriptionField->syndicateHtml = $this->descriptionHtmlSyndicated;
- $descriptionField->truncSize = $this->descriptionTruncSize;
- return $descriptionField->output();
- }
-
-}
-
-
-/**
- * An FeedHtmlField describes and generates
- * a feed, item or image html field (probably a description). Output is
- * generated based on $truncSize, $syndicateHtml properties.
- * @author Pascal Van Hecke <feedcreator.class.php@vanhecke.info>
- * @version 1.6
- */
-class FeedHtmlField {
- /**
- * Mandatory attributes of a FeedHtmlField.
- */
- var $rawFieldContent;
-
- /**
- * Optional attributes of a FeedHtmlField.
- *
- */
- var $truncSize, $syndicateHtml;
-
- /**
- * Creates a new instance of FeedHtmlField.
- * @param $string: if given, sets the rawFieldContent property
- */
- function FeedHtmlField($parFieldContent) {
- if ($parFieldContent) {
- $this->rawFieldContent = $parFieldContent;
- }
- }
-
-
- /**
- * Creates the right output, depending on $truncSize, $syndicateHtml properties.
- * @return string the formatted field
- */
- function output() {
- // when field available and syndicated in html we assume
- // - valid html in $rawFieldContent and we enclose in CDATA tags
- // - no truncation (truncating risks producing invalid html)
- if (!$this->rawFieldContent) {
- $result = "";
- } elseif ($this->syndicateHtml) {
- $result = "<![CDATA[".$this->rawFieldContent."]]>";
- } else {
- if ($this->truncSize and is_int($this->truncSize)) {
- $result = FeedCreator::iTrunc(htmlspecialchars($this->rawFieldContent),$this->truncSize);
- } else {
- $result = htmlspecialchars($this->rawFieldContent);
- }
- }
- return $result;
- }
-
-}
-
-
-
-/**
- * UniversalFeedCreator lets you choose during runtime which
- * format to build.
- * For general usage of a feed class, see the FeedCreator class
- * below or the example above.
- *
- * @since 1.3
- * @author Kai Blankenhorn <kaib@bitfolge.de>
- */
-class UniversalFeedCreator extends FeedCreator {
- var $_feed;
-
- function _setFormat($format) {
- switch (strtoupper($format)) {
-
- case "2.0":
- // fall through
- case "RSS2.0":
- $this->_feed = new RSSCreator20();
- break;
-
- case "1.0":
- // fall through
- case "RSS1.0":
- $this->_feed = new RSSCreator10();
- break;
-
- case "0.91":
- // fall through
- case "RSS0.91":
- $this->_feed = new RSSCreator091();
- break;
-
- case "PIE0.1":
- $this->_feed = new PIECreator01();
- break;
-
- case "MBOX":
- $this->_feed = new MBOXCreator();
- break;
-
- case "OPML":
- $this->_feed = new OPMLCreator();
- break;
-
- case "ATOM":
- // fall through: always the latest ATOM version
-
- case "ATOM0.3":
- $this->_feed = new AtomCreator03();
- break;
-
- case "HTML":
- $this->_feed = new HTMLCreator();
- break;
-
- case "JS":
- // fall through
- case "JAVASCRIPT":
- $this->_feed = new JSCreator();
- break;
-
- default:
- $this->_feed = new RSSCreator091();
- break;
- }
-
- $vars = get_object_vars($this);
- foreach ($vars as $key => $value) {
- // prevent overwriting of properties "contentType", "encoding"; do not copy "_feed" itself
- if (!in_array($key, array("_feed", "contentType", "encoding"))) {
- $this->_feed->{$key} = $this->{$key};
- }
- }
- }
-
- /**
- * Creates a syndication feed based on the items previously added.
- *
- * @see FeedCreator::addItem()
- * @param string format format the feed should comply to. Valid values are:
- * "PIE0.1", "mbox", "RSS0.91", "RSS1.0", "RSS2.0", "OPML", "ATOM0.3", "HTML", "JS"
- * @return string the contents of the feed.
- */
- function createFeed($format = "RSS0.91") {
- $this->_setFormat($format);
- return $this->_feed->createFeed();
- }
-
-
-
- /**
- * Saves this feed as a file on the local disk. After the file is saved, an HTTP redirect
- * header may be sent to redirect the use to the newly created file.
- * @since 1.4
- *
- * @param string format format the feed should comply to. Valid values are:
- * "PIE0.1" (deprecated), "mbox", "RSS0.91", "RSS1.0", "RSS2.0", "OPML", "ATOM", "ATOM0.3", "HTML", "JS"
- * @param string filename optional the filename where a recent version of the feed is saved. If not specified, the filename is $_SERVER["PHP_SELF"] with the extension changed to .xml (see _generateFilename()).
- * @param boolean displayContents optional send the content of the file or not. If true, the file will be sent in the body of the response.
- */
- function saveFeed($format="RSS0.91", $filename="", $displayContents=true) {
- $this->_setFormat($format);
- $this->_feed->saveFeed($filename, $displayContents);
- }
-
-
- /**
- * Turns on caching and checks if there is a recent version of this feed in the cache.
- * If there is, an HTTP redirect header is sent.
- * To effectively use caching, you should create the FeedCreator object and call this method
- * before anything else, especially before you do the time consuming task to build the feed
- * (web fetching, for example).
- *
- * @param string format format the feed should comply to. Valid values are:
- * "PIE0.1" (deprecated), "mbox", "RSS0.91", "RSS1.0", "RSS2.0", "OPML", "ATOM0.3".
- * @param filename string optional the filename where a recent version of the feed is saved. If not specified, the filename is $_SERVER["PHP_SELF"] with the extension changed to .xml (see _generateFilename()).
- * @param timeout int optional the timeout in seconds before a cached version is refreshed (defaults to 3600 = 1 hour)
- */
- function useCached($format="RSS0.91", $filename="", $timeout=3600) {
- $this->_setFormat($format);
- $this->_feed->useCached($filename, $timeout);
- }
-
-}
-
-
-/**
- * FeedCreator is the abstract base implementation for concrete
- * implementations that implement a specific format of syndication.
- *
- * @abstract
- * @author Kai Blankenhorn <kaib@bitfolge.de>
- * @since 1.4
- */
-class FeedCreator extends HtmlDescribable {
-
- /**
- * Mandatory attributes of a feed.
- */
- var $title, $description, $link;
-
-
- /**
- * Optional attributes of a feed.
- */
- var $syndicationURL, $image, $language, $copyright, $pubDate, $lastBuildDate, $editor, $editorEmail, $webmaster, $category, $docs, $ttl, $rating, $skipHours, $skipDays;
-
- /**
- * The url of the external xsl stylesheet used to format the naked rss feed.
- * Ignored in the output when empty.
- */
- var $xslStyleSheet = "";
-
-
- /**
- * @access private
- */
- var $items = Array();
-
-
- /**
- * This feed's MIME content type.
- * @since 1.4
- * @access private
- */
- var $contentType = "application/xml";
-
-
- /**
- * This feed's character encoding.
- * @since 1.6.1
- **/
- var $encoding = "ISO-8859-1";
-
-
- /**
- * Any additional elements to include as an assiciated array. All $key => $value pairs
- * will be included unencoded in the feed in the form
- * <$key>$value</$key>
- * Again: No encoding will be used! This means you can invalidate or enhance the feed
- * if $value contains markup. This may be abused to embed tags not implemented by
- * the FeedCreator class used.
- */
- var $additionalElements = Array();
-
-
- /**
- * Adds an FeedItem to the feed.
- *
- * @param object FeedItem $item The FeedItem to add to the feed.
- * @access public
- */
- function addItem($item) {
- $this->items[] = $item;
- }
-
-
- /**
- * Truncates a string to a certain length at the most sensible point.
- * First, if there's a '.' character near the end of the string, the string is truncated after this character.
- * If there is no '.', the string is truncated after the last ' ' character.
- * If the string is truncated, " ..." is appended.
- * If the string is already shorter than $length, it is returned unchanged.
- *
- * @static
- * @param string string A string to be truncated.
- * @param int length the maximum length the string should be truncated to
- * @return string the truncated string
- */
- function iTrunc($string, $length) {
- if (strlen($string)<=$length) {
- return $string;
- }
-
- $pos = strrpos($string,".");
- if ($pos>=$length-4) {
- $string = substr($string,0,$length-4);
- $pos = strrpos($string,".");
- }
- if ($pos>=$length*0.4) {
- return substr($string,0,$pos+1)." ...";
- }
-
- $pos = strrpos($string," ");
- if ($pos>=$length-4) {
- $string = substr($string,0,$length-4);
- $pos = strrpos($string," ");
- }
- if ($pos>=$length*0.4) {
- return substr($string,0,$pos)." ...";
- }
-
- return substr($string,0,$length-4)." ...";
-
- }
-
-
- /**
- * Creates a comment indicating the generator of this feed.
- * The format of this comment seems to be recognized by
- * Syndic8.com.
- */
- function _createGeneratorComment() {
- return "<!-- generator=\"".FEEDCREATOR_VERSION."\" -->\n";
- }
-
-
- /**
- * Creates a string containing all additional elements specified in
- * $additionalElements.
- * @param elements array an associative array containing key => value pairs
- * @param indentString string a string that will be inserted before every generated line
- * @return string the XML tags corresponding to $additionalElements
- */
- function _createAdditionalElements($elements, $indentString="") {
- $ae = "";
- if (is_array($elements)) {
- foreach($elements AS $key => $value) {
- $ae.= $indentString."<$key>$value</$key>\n";
- }
- }
- return $ae;
- }
-
- function _createStylesheetReferences() {
- $xml = "";
- if ($this->cssStyleSheet) $xml .= "<?xml-stylesheet href=\"".$this->cssStyleSheet."\" type=\"text/css\"?>\n";
- if ($this->xslStyleSheet) $xml .= "<?xml-stylesheet href=\"".$this->xslStyleSheet."\" type=\"text/xsl\"?>\n";
- return $xml;
- }
-
-
- /**
- * Builds the feed's text.
- * @abstract
- * @return string the feed's complete text
- */
- function createFeed() {
- }
-
- /**
- * Generate a filename for the feed cache file. The result will be $_SERVER["PHP_SELF"] with the extension changed to .xml.
- * For example:
- *
- * echo $_SERVER["PHP_SELF"]."\n";
- * echo FeedCreator::_generateFilename();
- *
- * would produce:
- *
- * /rss/latestnews.php
- * latestnews.xml
- *
- * @return string the feed cache filename
- * @since 1.4
- * @access private
- */
- function _generateFilename() {
- $fileInfo = pathinfo($_SERVER["PHP_SELF"]);
- return substr($fileInfo["basename"],0,-(strlen($fileInfo["extension"])+1)).".xml";
- }
-
-
- /**
- * @since 1.4
- * @access private
- */
- function _redirect($filename) {
- // attention, heavily-commented-out-area
-
- // maybe use this in addition to file time checking
- //Header("Expires: ".date("r",time()+$this->_timeout));
-
- /* no caching at all, doesn't seem to work as good:
- Header("Cache-Control: no-cache");
- Header("Pragma: no-cache");
- */
-
- // HTTP redirect, some feed readers' simple HTTP implementations don't follow it
- //Header("Location: ".$filename);
-
- Header("Content-Type: ".$this->contentType."; charset=".$this->encoding."; filename=".basename($filename));
- Header("Content-Disposition: inline; filename=".basename($filename));
- readfile($filename, "r");
- die();
- }
-
- /**
- * Turns on caching and checks if there is a recent version of this feed in the cache.
- * If there is, an HTTP redirect header is sent.
- * To effectively use caching, you should create the FeedCreator object and call this method
- * before anything else, especially before you do the time consuming task to build the feed
- * (web fetching, for example).
- * @since 1.4
- * @param filename string optional the filename where a recent version of the feed is saved. If not specified, the filename is $_SERVER["PHP_SELF"] with the extension changed to .xml (see _generateFilename()).
- * @param timeout int optional the timeout in seconds before a cached version is refreshed (defaults to 3600 = 1 hour)
- */
- function useCached($filename="", $timeout=3600) {
- $this->_timeout = $timeout;
- if ($filename=="") {
- $filename = $this->_generateFilename();
- }
- if (file_exists($filename) AND (time()-filemtime($filename) < $timeout)) {
- $this->_redirect($filename);
- }
- }
-
-
- /**
- * Saves this feed as a file on the local disk. After the file is saved, a redirect
- * header may be sent to redirect the user to the newly created file.
- * @since 1.4
- *
- * @param filename string optional the filename where a recent version of the feed is saved. If not specified, the filename is $_SERVER["PHP_SELF"] with the extension changed to .xml (see _generateFilename()).
- * @param redirect boolean optional send an HTTP redirect header or not. If true, the user will be automatically redirected to the created file.
- */
- function saveFeed($filename="", $displayContents=true) {
- if ($filename=="") {
- $filename = $this->_generateFilename();
- }
- $feedFile = fopen($filename, "w+");
- if ($feedFile) {
- fputs($feedFile,$this->createFeed());
- fclose($feedFile);
- if ($displayContents) {
- $this->_redirect($filename);
- }
- } else {
- echo "<br /><strong>Error creating feed file, please check write permissions.</strong><br />";
- }
- }
-
-}
-
-
-/**
- * FeedDate is an internal class that stores a date for a feed or feed item.
- * Usually, you won't need to use this.
- */
-class FeedDate {
- var $unix;
-
- /**
- * Creates a new instance of FeedDate representing a given date.
- * Accepts RFC 822, ISO 8601 date formats as well as unix time stamps.
- * @param mixed $dateString optional the date this FeedDate will represent. If not specified, the current date and time is used.
- */
- function FeedDate($dateString="") {
- if ($dateString=="") $dateString = date("r");
-
- if (is_integer($dateString)) {
- $this->unix = $dateString;
- return;
- }
- if (preg_match("~(?:(?:Mon|Tue|Wed|Thu|Fri|Sat|Sun),\\s+)?(\\d{1,2})\\s+([a-zA-Z]{3})\\s+(\\d{4})\\s+(\\d{2}):(\\d{2}):(\\d{2})\\s+(.*)~",$dateString,$matches)) {
- $months = Array("Jan"=>1,"Feb"=>2,"Mar"=>3,"Apr"=>4,"May"=>5,"Jun"=>6,"Jul"=>7,"Aug"=>8,"Sep"=>9,"Oct"=>10,"Nov"=>11,"Dec"=>12);
- $this->unix = mktime($matches[4],$matches[5],$matches[6],$months[$matches[2]],$matches[1],$matches[3]);
- if (substr($matches[7],0,1)=='+' OR substr($matches[7],0,1)=='-') {
- $tzOffset = (substr($matches[7],0,3) * 60 + substr($matches[7],-2)) * 60;
- } else {
- if (strlen($matches[7])==1) {
- $oneHour = 3600;
- $ord = ord($matches[7]);
- if ($ord < ord("M")) {
- $tzOffset = (ord("A") - $ord - 1) * $oneHour;
- } elseif ($ord >= ord("M") AND $matches[7]!="Z") {
- $tzOffset = ($ord - ord("M")) * $oneHour;
- } elseif ($matches[7]=="Z") {
- $tzOffset = 0;
- }
- }
- switch ($matches[7]) {
- case "UT":
- case "GMT": $tzOffset = 0;
- }
- }
- $this->unix += $tzOffset;
- return;
- }
- if (preg_match("~(\\d{4})-(\\d{2})-(\\d{2})T(\\d{2}):(\\d{2}):(\\d{2})(.*)~",$dateString,$matches)) {
- $this->unix = mktime($matches[4],$matches[5],$matches[6],$matches[2],$matches[3],$matches[1]);
- if (substr($matches[7],0,1)=='+' OR substr($matches[7],0,1)=='-') {
- $tzOffset = (substr($matches[7],0,3) * 60 + substr($matches[7],-2)) * 60;
- } else {
- if ($matches[7]=="Z") {
- $tzOffset = 0;
- }
- }
- $this->unix += $tzOffset;
- return;
- }
- $this->unix = 0;
- }
-
- /**
- * Gets the date stored in this FeedDate as an RFC 822 date.
- *
- * @return a date in RFC 822 format
- */
- function rfc822() {
- //return gmdate("r",$this->unix);
- $date = gmdate("D, d M Y H:i:s", $this->unix);
- if (TIME_ZONE!="") $date .= " ".str_replace(":","",TIME_ZONE);
- return $date;
- }
-
- /**
- * Gets the date stored in this FeedDate as an ISO 8601 date.
- *
- * @return a date in ISO 8601 format
- */
- function iso8601() {
- $date = gmdate("Y-m-d\TH:i:sO",$this->unix);
- $date = substr($date,0,22) . ':' . substr($date,-2);
- if (TIME_ZONE!="") $date = str_replace("+00:00",TIME_ZONE,$date);
- return $date;
- }
-
- /**
- * Gets the date stored in this FeedDate as unix time stamp.
- *
- * @return a date as a unix time stamp
- */
- function unix() {
- return $this->unix;
- }
-}
-
-
-/**
- * RSSCreator10 is a FeedCreator that implements RDF Site Summary (RSS) 1.0.
- *
- * @see http://www.purl.org/rss/1.0/
- * @since 1.3
- * @author Kai Blankenhorn <kaib@bitfolge.de>
- */
-class RSSCreator10 extends FeedCreator {
-
- /**
- * Builds the RSS feed's text. The feed will be compliant to RDF Site Summary (RSS) 1.0.
- * The feed will contain all items previously added in the same order.
- * @return string the feed's complete text
- */
- function createFeed() {
- $feed = "<?xml version=\"1.0\" encoding=\"".$this->encoding."\"?>\n";
- $feed.= $this->_createGeneratorComment();
- if ($this->cssStyleSheet=="") {
- $cssStyleSheet = "http://www.w3.org/2000/08/w3c-synd/style.css";
- }
- $feed.= $this->_createStylesheetReferences();
- $feed.= "<rdf:RDF\n";
- $feed.= " xmlns=\"http://purl.org/rss/1.0/\"\n";
- $feed.= " xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"\n";
- $feed.= " xmlns:slash=\"http://purl.org/rss/1.0/modules/slash/\"\n";
- $feed.= " xmlns:dc=\"http://purl.org/dc/elements/1.1/\">\n";
- $feed.= " <channel rdf:about=\"".$this->syndicationURL."\">\n";
- $feed.= " <title>".htmlspecialchars($this->title)."</title>\n";
- $feed.= " <description>".htmlspecialchars($this->description)."</description>\n";
- $feed.= " <link>".$this->link."</link>\n";
- if ($this->image!=null) {
- $feed.= " <image rdf:resource=\"".$this->image->url."\" />\n";
- }
- $now = new FeedDate();
- $feed.= " <dc:date>".htmlspecialchars($now->iso8601())."</dc:date>\n";
- $feed.= " <items>\n";
- $feed.= " <rdf:Seq>\n";
- for ($i=0;$i<count($this->items);$i++) {
- $feed.= " <rdf:li rdf:resource=\"".htmlspecialchars($this->items[$i]->link)."\"/>\n";
- }
- $feed.= " </rdf:Seq>\n";
- $feed.= " </items>\n";
- $feed.= " </channel>\n";
- if ($this->image!=null) {
- $feed.= " <image rdf:about=\"".$this->image->url."\">\n";
- $feed.= " <title>".$this->image->title."</title>\n";
- $feed.= " <link>".$this->image->link."</link>\n";
- $feed.= " <url>".$this->image->url."</url>\n";
- $feed.= " </image>\n";
- }
- $feed.= $this->_createAdditionalElements($this->additionalElements, " ");
-
- for ($i=0;$i<count($this->items);$i++) {
- $feed.= " <item rdf:about=\"".htmlspecialchars($this->items[$i]->link)."\">\n";
- //$feed.= " <dc:type>Posting</dc:type>\n";
- $feed.= " <dc:format>text/html</dc:format>\n";
- if ($this->items[$i]->date!=null) {
- $itemDate = new FeedDate($this->items[$i]->date);
- $feed.= " <dc:date>".htmlspecialchars($itemDate->iso8601())."</dc:date>\n";
- }
- if ($this->items[$i]->source!="") {
- $feed.= " <dc:source>".htmlspecialchars($this->items[$i]->source)."</dc:source>\n";
- }
- if ($this->items[$i]->author!="") {
- $feed.= " <dc:creator>".htmlspecialchars($this->items[$i]->author)."</dc:creator>\n";
- }
- $feed.= " <title>".htmlspecialchars(strip_tags(strtr($this->items[$i]->title,"\n\r"," ")))."</title>\n";
- $feed.= " <link>".htmlspecialchars($this->items[$i]->link)."</link>\n";
- $feed.= " <description>".htmlspecialchars($this->items[$i]->description)."</description>\n";
- $feed.= $this->_createAdditionalElements($this->items[$i]->additionalElements, " ");
- $feed.= " </item>\n";
- }
- $feed.= "</rdf:RDF>\n";
- return $feed;
- }
-}
-
-
-
-/**
- * RSSCreator091 is a FeedCreator that implements RSS 0.91 Spec, revision 3.
- *
- * @see http://my.netscape.com/publish/formats/rss-spec-0.91.html
- * @since 1.3
- * @author Kai Blankenhorn <kaib@bitfolge.de>
- */
-class RSSCreator091 extends FeedCreator {
-
- /**
- * Stores this RSS feed's version number.
- * @access private
- */
- var $RSSVersion;
-
- function RSSCreator091() {
- $this->_setRSSVersion("0.91");
- $this->contentType = "application/rss+xml";
- }
-
- /**
- * Sets this RSS feed's version number.
- * @access private
- */
- function _setRSSVersion($version) {
- $this->RSSVersion = $version;
- }
-
- /**
- * Builds the RSS feed's text. The feed will be compliant to RDF Site Summary (RSS) 1.0.
- * The feed will contain all items previously added in the same order.
- * @return string the feed's complete text
- */
- function createFeed() {
- $feed = "<?xml version=\"1.0\" encoding=\"".$this->encoding."\"?>\n";
- $feed.= $this->_createGeneratorComment();
- $feed.= $this->_createStylesheetReferences();
- $feed.= "<rss version=\"".$this->RSSVersion."\" xmlns:atom=\"http://www.w3.org/2005/Atom\">\n";
- $feed.= " <channel>\n";
- $feed.= " <title>".FeedCreator::iTrunc(htmlspecialchars($this->title),100)."</title>\n";
- $this->descriptionTruncSize = 500;
- $feed.= " <description>".$this->getDescription()."</description>\n";
- $feed.= " <link>".$this->link."</link>\n";
- $feed.= " <atom:link href=\"".$this->syndicationURL."\" rel=\"self\" type=\"application/rss+xml\" />\n";
- $now = new FeedDate();
- $feed.= " <lastBuildDate>".htmlspecialchars($now->rfc822())."</lastBuildDate>\n";
- $feed.= " <generator>".FEEDCREATOR_VERSION."</generator>\n";
-
- if ($this->image!=null) {
- $feed.= " <image>\n";
- $feed.= " <url>".$this->image->url."</url>\n";
- $feed.= " <title>".FeedCreator::iTrunc(htmlspecialchars($this->image->title),100)."</title>\n";
- $feed.= " <link>".$this->image->link."</link>\n";
- if ($this->image->width!="") {
- $feed.= " <width>".$this->image->width."</width>\n";
- }
- if ($this->image->height!="") {
- $feed.= " <height>".$this->image->height."</height>\n";
- }
- if ($this->image->description!="") {
- $feed.= " <description>".$this->image->getDescription()."</description>\n";
- }
- $feed.= " </image>\n";
- }
- if ($this->language!="") {
- $feed.= " <language>".$this->language."</language>\n";
- }
- if ($this->copyright!="") {
- $feed.= " <copyright>".FeedCreator::iTrunc(htmlspecialchars($this->copyright),100)."</copyright>\n";
- }
- if ($this->editor!="") {
- $feed.= " <managingEditor>".FeedCreator::iTrunc(htmlspecialchars($this->editor),100)."</managingEditor>\n";
- }
- if ($this->webmaster!="") {
- $feed.= " <webMaster>".FeedCreator::iTrunc(htmlspecialchars($this->webmaster),100)."</webMaster>\n";
- }
- if ($this->pubDate!="") {
- $pubDate = new FeedDate($this->pubDate);
- $feed.= " <pubDate>".htmlspecialchars($pubDate->rfc822())."</pubDate>\n";
- }
- if ($this->category!="") {
- $feed.= " <category>".htmlspecialchars($this->category)."</category>\n";
- }
- if ($this->docs!="") {
- $feed.= " <docs>".FeedCreator::iTrunc(htmlspecialchars($this->docs),500)."</docs>\n";
- }
- if ($this->ttl!="") {
- $feed.= " <ttl>".htmlspecialchars($this->ttl)."</ttl>\n";
- }
- if ($this->rating!="") {
- $feed.= " <rating>".FeedCreator::iTrunc(htmlspecialchars($this->rating),500)."</rating>\n";
- }
- if ($this->skipHours!="") {
- $feed.= " <skipHours>".htmlspecialchars($this->skipHours)."</skipHours>\n";
- }
- if ($this->skipDays!="") {
- $feed.= " <skipDays>".htmlspecialchars($this->skipDays)."</skipDays>\n";
- }
- $feed.= $this->_createAdditionalElements($this->additionalElements, " ");
-
- for ($i=0;$i<count($this->items);$i++) {
- $feed.= " <item>\n";
- $feed.= " <title>".FeedCreator::iTrunc(htmlspecialchars(strip_tags($this->items[$i]->title)),100)."</title>\n";
- $feed.= " <link>".htmlspecialchars($this->items[$i]->link)."</link>\n";
- $feed.= " <description>".$this->items[$i]->getDescription()."</description>\n";
-
- if ($this->items[$i]->author!="") {
- $feed.= " <author>".htmlspecialchars($this->items[$i]->author)."</author>\n";
- }
- /*
- // on hold
- if ($this->items[$i]->source!="") {
- $feed.= " <source>".htmlspecialchars($this->items[$i]->source)."</source>\n";
- }
- */
- if ($this->items[$i]->category!="") {
- $feed.= " <category>".htmlspecialchars($this->items[$i]->category)."</category>\n";
- }
- if ($this->items[$i]->comments!="") {
- $feed.= " <comments>".htmlspecialchars($this->items[$i]->comments)."</comments>\n";
- }
- if ($this->items[$i]->date!="") {
- $itemDate = new FeedDate($this->items[$i]->date);
- $feed.= " <pubDate>".htmlspecialchars($itemDate->rfc822())."</pubDate>\n";
- }
- if ($this->items[$i]->guid!="") {
- $feed.= " <guid>".htmlspecialchars($this->items[$i]->guid)."</guid>\n";
- }
- $feed.= $this->_createAdditionalElements($this->items[$i]->additionalElements, " ");
- $feed.= " </item>\n";
- }
- $feed.= " </channel>\n";
- $feed.= "</rss>\n";
- return $feed;
- }
-}
-
-
-
-/**
- * RSSCreator20 is a FeedCreator that implements RDF Site Summary (RSS) 2.0.
- *
- * @see http://backend.userland.com/rss
- * @since 1.3
- * @author Kai Blankenhorn <kaib@bitfolge.de>
- */
-class RSSCreator20 extends RSSCreator091 {
-
- function RSSCreator20() {
- parent::_setRSSVersion("2.0");
- }
-
-}
-
-
-/**
- * PIECreator01 is a FeedCreator that implements the emerging PIE specification,
- * as in http://intertwingly.net/wiki/pie/Syntax.
- *
- * @deprecated
- * @since 1.3
- * @author Scott Reynen <scott@randomchaos.com> and Kai Blankenhorn <kaib@bitfolge.de>
- */
-class PIECreator01 extends FeedCreator {
-
- function PIECreator01() {
- $this->encoding = "utf-8";
- }
-
- function createFeed() {
- $feed = "<?xml version=\"1.0\" encoding=\"".$this->encoding."\"?>\n";
- $feed.= $this->_createStylesheetReferences();
- $feed.= "<feed version=\"0.1\" xmlns=\"http://example.com/newformat#\">\n";
- $feed.= " <title>".FeedCreator::iTrunc(htmlspecialchars($this->title),100)."</title>\n";
- $this->truncSize = 500;
- $feed.= " <subtitle>".$this->getDescription()."</subtitle>\n";
- $feed.= " <link>".$this->link."</link>\n";
- for ($i=0;$i<count($this->items);$i++) {
- $feed.= " <entry>\n";
- $feed.= " <title>".FeedCreator::iTrunc(htmlspecialchars(strip_tags($this->items[$i]->title)),100)."</title>\n";
- $feed.= " <link>".htmlspecialchars($this->items[$i]->link)."</link>\n";
- $itemDate = new FeedDate($this->items[$i]->date);
- $feed.= " <created>".htmlspecialchars($itemDate->iso8601())."</created>\n";
- $feed.= " <issued>".htmlspecialchars($itemDate->iso8601())."</issued>\n";
- $feed.= " <modified>".htmlspecialchars($itemDate->iso8601())."</modified>\n";
- $feed.= " <id>".htmlspecialchars($this->items[$i]->guid)."</id>\n";
- if ($this->items[$i]->author!="") {
- $feed.= " <author>\n";
- $feed.= " <name>".htmlspecialchars($this->items[$i]->author)."</name>\n";
- if ($this->items[$i]->authorEmail!="") {
- $feed.= " <email>".$this->items[$i]->authorEmail."</email>\n";
- }
- $feed.=" </author>\n";
- }
- $feed.= " <content type=\"text/html\" xml:lang=\"en-us\">\n";
- $feed.= " <div xmlns=\"http://www.w3.org/1999/xhtml\">".$this->items[$i]->getDescription()."</div>\n";
- $feed.= " </content>\n";
- $feed.= " </entry>\n";
- }
- $feed.= "</feed>\n";
- return $feed;
- }
-}
-
-
-/**
- * AtomCreator03 is a FeedCreator that implements the atom specification,
- * as in http://www.intertwingly.net/wiki/pie/FrontPage.
- * Please note that just by using AtomCreator03 you won't automatically
- * produce valid atom files. For example, you have to specify either an editor
- * for the feed or an author for every single feed item.
- *
- * Some elements have not been implemented yet. These are (incomplete list):
- * author URL, item author's email and URL, item contents, alternate links,
- * other link content types than text/html. Some of them may be created with
- * AtomCreator03::additionalElements.
- *
- * @see FeedCreator#additionalElements
- * @since 1.6
- * @author Kai Blankenhorn <kaib@bitfolge.de>, Scott Reynen <scott@randomchaos.com>
- */
-class AtomCreator03 extends FeedCreator {
-
- function AtomCreator03() {
- $this->contentType = "application/atom+xml";
- $this->encoding = "utf-8";
- }
-
- function createFeed() {
- $feed = "<?xml version=\"1.0\" encoding=\"".$this->encoding."\"?>\n";
- $feed.= $this->_createGeneratorComment();
- $feed.= $this->_createStylesheetReferences();
- $feed.= "<feed version=\"0.3\" xmlns=\"http://purl.org/atom/ns#\"";
- if ($this->language!="") {
- $feed.= " xml:lang=\"".$this->language."\"";
- }
- $feed.= ">\n";
- $feed.= " <title>".htmlspecialchars($this->title)."</title>\n";
- $feed.= " <tagline>".htmlspecialchars($this->description)."</tagline>\n";
- $feed.= " <link rel=\"alternate\" type=\"text/html\" href=\"".htmlspecialchars($this->link)."\"/>\n";
- $feed.= " <id>".htmlspecialchars($this->link)."</id>\n";
- $now = new FeedDate();
- $feed.= " <modified>".htmlspecialchars($now->iso8601())."</modified>\n";
- if ($this->editor!="") {
- $feed.= " <author>\n";
- $feed.= " <name>".$this->editor."</name>\n";
- if ($this->editorEmail!="") {
- $feed.= " <email>".$this->editorEmail."</email>\n";
- }
- $feed.= " </author>\n";
- }
- $feed.= " <generator>".FEEDCREATOR_VERSION."</generator>\n";
- $feed.= $this->_createAdditionalElements($this->additionalElements, " ");
- for ($i=0;$i<count($this->items);$i++) {
- $feed.= " <entry>\n";
- $feed.= " <title>".htmlspecialchars(strip_tags($this->items[$i]->title))."</title>\n";
- $feed.= " <link rel=\"alternate\" type=\"text/html\" href=\"".htmlspecialchars($this->items[$i]->link)."\"/>\n";
- if ($this->items[$i]->date=="") {
- $this->items[$i]->date = time();
- }
- $itemDate = new FeedDate($this->items[$i]->date);
- $feed.= " <created>".htmlspecialchars($itemDate->iso8601())."</created>\n";
- $feed.= " <issued>".htmlspecialchars($itemDate->iso8601())."</issued>\n";
- $feed.= " <modified>".htmlspecialchars($itemDate->iso8601())."</modified>\n";
- $feed.= " <id>".htmlspecialchars($this->items[$i]->link)."</id>\n";
- $feed.= $this->_createAdditionalElements($this->items[$i]->additionalElements, " ");
- if ($this->items[$i]->author!="") {
- $feed.= " <author>\n";
- $feed.= " <name>".htmlspecialchars($this->items[$i]->author)."</name>\n";
- $feed.= " </author>\n";
- }
- if ($this->items[$i]->description!="") {
- $feed.= " <summary>".htmlspecialchars($this->items[$i]->description)."</summary>\n";
- }
- $feed.= " </entry>\n";
- }
- $feed.= "</feed>\n";
- return $feed;
- }
-}
-
-
-/**
- * MBOXCreator is a FeedCreator that implements the mbox format
- * as described in http://www.qmail.org/man/man5/mbox.html
- *
- * @since 1.3
- * @author Kai Blankenhorn <kaib@bitfolge.de>
- */
-class MBOXCreator extends FeedCreator {
-
- function MBOXCreator() {
- $this->contentType = "text/plain";
- $this->encoding = "ISO-8859-15";
- }
-
- function qp_enc($input = "", $line_max = 76) {
- $hex = array('0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F');
- $lines = preg_split("/(?:\r\n|\r|\n)/", $input);
- $eol = "\r\n";
- $escape = "=";
- $output = "";
- while( list(, $line) = each($lines) ) {
- //$line = rtrim($line); // remove trailing white space -> no =20\r\n necessary
- $linlen = strlen($line);
- $newline = "";
- for($i = 0; $i < $linlen; $i++) {
- $c = substr($line, $i, 1);
- $dec = ord($c);
- if ( ($dec == 32) && ($i == ($linlen - 1)) ) { // convert space at eol only
- $c = "=20";
- } elseif ( ($dec == 61) || ($dec < 32 ) || ($dec > 126) ) { // always encode "\t", which is *not* required
- $h2 = floor($dec/16); $h1 = floor($dec%16);
- $c = $escape.$hex["$h2"].$hex["$h1"];
- }
- if ( (strlen($newline) + strlen($c)) >= $line_max ) { // CRLF is not counted
- $output .= $newline.$escape.$eol; // soft line break; " =\r\n" is okay
- $newline = "";
- }
- $newline .= $c;
- } // end of for
- $output .= $newline.$eol;
- }
- return trim($output);
- }
-
-
- /**
- * Builds the MBOX contents.
- * @return string the feed's complete text
- */
- function createFeed() {
- for ($i=0;$i<count($this->items);$i++) {
- if ($this->items[$i]->author!="") {
- $from = $this->items[$i]->author;
- } else {
- $from = $this->title;
- }
- $itemDate = new FeedDate($this->items[$i]->date);
- $feed.= "From ".strtr(MBOXCreator::qp_enc($from)," ","_")." ".date("D M d H:i:s Y",$itemDate->unix())."\n";
- $feed.= "Content-Type: text/plain;\n";
- $feed.= " charset=\"".$this->encoding."\"\n";
- $feed.= "Content-Transfer-Encoding: quoted-printable\n";
- $feed.= "Content-Type: text/plain\n";
- $feed.= "From: \"".MBOXCreator::qp_enc($from)."\"\n";
- $feed.= "Date: ".$itemDate->rfc822()."\n";
- $feed.= "Subject: ".MBOXCreator::qp_enc(FeedCreator::iTrunc($this->items[$i]->title,100))."\n";
- $feed.= "\n";
- $body = chunk_split(MBOXCreator::qp_enc($this->items[$i]->description));
- $feed.= preg_replace("~\nFrom ([^\n]*)(\n?)~","\n>From $1$2\n",$body);
- $feed.= "\n";
- $feed.= "\n";
- }
- return $feed;
- }
-
- /**
- * Generate a filename for the feed cache file. Overridden from FeedCreator to prevent XML data types.
- * @return string the feed cache filename
- * @since 1.4
- * @access private
- */
- function _generateFilename() {
- $fileInfo = pathinfo($_SERVER["PHP_SELF"]);
- return substr($fileInfo["basename"],0,-(strlen($fileInfo["extension"])+1)).".mbox";
- }
-}
-
-
-/**
- * OPMLCreator is a FeedCreator that implements OPML 1.0.
- *
- * @see http://opml.scripting.com/spec
- * @author Dirk Clemens, Kai Blankenhorn
- * @since 1.5
- */
-class OPMLCreator extends FeedCreator {
-
- function OPMLCreator() {
- $this->encoding = "utf-8";
- }
-
- function createFeed() {
- $feed = "<?xml version=\"1.0\" encoding=\"".$this->encoding."\"?>\n";
- $feed.= $this->_createGeneratorComment();
- $feed.= $this->_createStylesheetReferences();
- $feed.= "<opml xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">\n";
- $feed.= " <head>\n";
- $feed.= " <title>".htmlspecialchars($this->title)."</title>\n";
- if ($this->pubDate!="") {
- $date = new FeedDate($this->pubDate);
- $feed.= " <dateCreated>".$date->rfc822()."</dateCreated>\n";
- }
- if ($this->lastBuildDate!="") {
- $date = new FeedDate($this->lastBuildDate);
- $feed.= " <dateModified>".$date->rfc822()."</dateModified>\n";
- }
- if ($this->editor!="") {
- $feed.= " <ownerName>".$this->editor."</ownerName>\n";
- }
- if ($this->editorEmail!="") {
- $feed.= " <ownerEmail>".$this->editorEmail."</ownerEmail>\n";
- }
- $feed.= " </head>\n";
- $feed.= " <body>\n";
- for ($i=0;$i<count($this->items);$i++) {
- $feed.= " <outline type=\"rss\" ";
- $title = htmlspecialchars(strip_tags(strtr($this->items[$i]->title,"\n\r"," ")));
- $feed.= " title=\"".$title."\"";
- $feed.= " text=\"".$title."\"";
- //$feed.= " description=\"".htmlspecialchars($this->items[$i]->description)."\"";
- $feed.= " url=\"".htmlspecialchars($this->items[$i]->link)."\"";
- $feed.= "/>\n";
- }
- $feed.= " </body>\n";
- $feed.= "</opml>\n";
- return $feed;
- }
-}
-
-
-
-/**
- * HTMLCreator is a FeedCreator that writes an HTML feed file to a specific
- * location, overriding the createFeed method of the parent FeedCreator.
- * The HTML produced can be included over http by scripting languages, or serve
- * as the source for an IFrame.
- * All output by this class is embedded in <div></div> tags to enable formatting
- * using CSS.
- *
- * @author Pascal Van Hecke
- * @since 1.7
- */
-class HTMLCreator extends FeedCreator {
-
- var $contentType = "text/html";
-
- /**
- * Contains HTML to be output at the start of the feed's html representation.
- */
- var $header;
-
- /**
- * Contains HTML to be output at the end of the feed's html representation.
- */
- var $footer ;
-
- /**
- * Contains HTML to be output between entries. A separator is only used in
- * case of multiple entries.
- */
- var $separator;
-
- /**
- * Used to prefix the stylenames to make sure they are unique
- * and do not clash with stylenames on the users' page.
- */
- var $stylePrefix;
-
- /**
- * Determines whether the links open in a new window or not.
- */
- var $openInNewWindow = true;
-
- var $imageAlign ="right";
-
- /**
- * In case of very simple output you may want to get rid of the style tags,
- * hence this variable. There's no equivalent on item level, but of course you can
- * add strings to it while iterating over the items ($this->stylelessOutput .= ...)
- * and when it is non-empty, ONLY the styleless output is printed, the rest is ignored
- * in the function createFeed().
- */
- var $stylelessOutput ="";
-
- /**
- * Writes the HTML.
- * @return string the scripts's complete text
- */
- function createFeed() {
- // if there is styleless output, use the content of this variable and ignore the rest
- if ($this->stylelessOutput!="") {
- return $this->stylelessOutput;
- }
-
- //if no stylePrefix is set, generate it yourself depending on the script name
- if ($this->stylePrefix=="") {
- $this->stylePrefix = str_replace(".", "_", $this->_generateFilename())."_";
- }
-
- //set an openInNewWindow_token_to be inserted or not
- if ($this->openInNewWindow) {
- $targetInsert = " target='_blank'";
- }
-
- // use this array to put the lines in and implode later with "document.write" javascript
- $feedArray = array();
- if ($this->image!=null) {
- $imageStr = "<a href='".$this->image->link."'".$targetInsert.">".
- "<img src='".$this->image->url."' border='0' alt='".
- FeedCreator::iTrunc(htmlspecialchars($this->image->title),100).
- "' align='".$this->imageAlign."' ";
- if ($this->image->width) {
- $imageStr .=" width='".$this->image->width. "' ";
- }
- if ($this->image->height) {
- $imageStr .=" height='".$this->image->height."' ";
- }
- $imageStr .="/></a>";
- $feedArray[] = $imageStr;
- }
-
- if ($this->title) {
- $feedArray[] = "<div class='".$this->stylePrefix."title'><a href='".$this->link."' ".$targetInsert." class='".$this->stylePrefix."title'>".
- FeedCreator::iTrunc(htmlspecialchars($this->title),100)."</a></div>";
- }
- if ($this->getDescription()) {
- $feedArray[] = "<div class='".$this->stylePrefix."description'>".
- str_replace("]]>", "", str_replace("<![CDATA[", "", $this->getDescription())).
- "</div>";
- }
-
- if ($this->header) {
- $feedArray[] = "<div class='".$this->stylePrefix."header'>".$this->header."</div>";
- }
-
- for ($i=0;$i<count($this->items);$i++) {
- if ($this->separator and $i > 0) {
- $feedArray[] = "<div class='".$this->stylePrefix."separator'>".$this->separator."</div>";
- }
-
- if ($this->items[$i]->title) {
- if ($this->items[$i]->link) {
- $feedArray[] =
- "<div class='".$this->stylePrefix."item_title'><a href='".$this->items[$i]->link."' class='".$this->stylePrefix.
- "item_title'".$targetInsert.">".FeedCreator::iTrunc(htmlspecialchars(strip_tags($this->items[$i]->title)),100).
- "</a></div>";
- } else {
- $feedArray[] =
- "<div class='".$this->stylePrefix."item_title'>".
- FeedCreator::iTrunc(htmlspecialchars(strip_tags($this->items[$i]->title)),100).
- "</div>";
- }
- }
- if ($this->items[$i]->getDescription()) {
- $feedArray[] =
- "<div class='".$this->stylePrefix."item_description'>".
- str_replace("]]>", "", str_replace("<![CDATA[", "", $this->items[$i]->getDescription())).
- "</div>";
- }
- }
- if ($this->footer) {
- $feedArray[] = "<div class='".$this->stylePrefix."footer'>".$this->footer."</div>";
- }
-
- $feed= "".join($feedArray, "\r\n");
- return $feed;
- }
-
- /**
- * Overrrides parent to produce .html extensions
- *
- * @return string the feed cache filename
- * @since 1.4
- * @access private
- */
- function _generateFilename() {
- $fileInfo = pathinfo($_SERVER["PHP_SELF"]);
- return substr($fileInfo["basename"],0,-(strlen($fileInfo["extension"])+1)).".html";
- }
-}
-
-
-/**
- * JSCreator is a class that writes a js file to a specific
- * location, overriding the createFeed method of the parent HTMLCreator.
- *
- * @author Pascal Van Hecke
- */
-class JSCreator extends HTMLCreator {
- var $contentType = "text/javascript";
-
- /**
- * writes the javascript
- * @return string the scripts's complete text
- */
- function createFeed()
- {
- $feed = parent::createFeed();
- $feedArray = explode("\n",$feed);
-
- $jsFeed = "";
- foreach ($feedArray as $value) {
- $jsFeed .= "document.write('".trim(addslashes($value))."');\n";
- }
- return $jsFeed;
- }
-
- /**
- * Overrrides parent to produce .js extensions
- *
- * @return string the feed cache filename
- * @since 1.4
- * @access private
- */
- function _generateFilename() {
- $fileInfo = pathinfo($_SERVER["PHP_SELF"]);
- return substr($fileInfo["basename"],0,-(strlen($fileInfo["extension"])+1)).".js";
- }
-
-}
-
-
-
-/*** TEST SCRIPT *********************************************************
-
-//include("feedcreator.class.php");
-
-$rss = new UniversalFeedCreator();
-$rss->useCached();
-$rss->title = "PHP news";
-$rss->description = "daily news from the PHP scripting world";
-
-//optional
-//$rss->descriptionTruncSize = 500;
-//$rss->descriptionHtmlSyndicated = true;
-//$rss->xslStyleSheet = "http://feedster.com/rss20.xsl";
-
-$rss->link = "http://www.dailyphp.net/news";
-$rss->feedURL = "http://www.dailyphp.net/".$PHP_SELF;
-
-$image = new FeedImage();
-$image->title = "dailyphp.net logo";
-$image->url = "http://www.dailyphp.net/images/logo.gif";
-$image->link = "http://www.dailyphp.net";
-$image->description = "Feed provided by dailyphp.net. Click to visit.";
-
-//optional
-$image->descriptionTruncSize = 500;
-$image->descriptionHtmlSyndicated = true;
-
-$rss->image = $image;
-
-// get your news items from somewhere, e.g. your database:
-//mysql_select_db($dbHost, $dbUser, $dbPass);
-//$res = mysql_query("SELECT * FROM news ORDER BY newsdate DESC");
-//while ($data = mysql_fetch_object($res)) {
- $item = new FeedItem();
- $item->title = "This is an the test title of an item";
- $item->link = "http://localhost/item/";
- $item->description = "<b>description in </b><br/>HTML";
-
- //optional
- //item->descriptionTruncSize = 500;
- $item->descriptionHtmlSyndicated = true;
-
- $item->date = time();
- $item->source = "http://www.dailyphp.net";
- $item->author = "John Doe";
-
- $rss->addItem($item);
-//}
-
-// valid format strings are: RSS0.91, RSS1.0, RSS2.0, PIE0.1, MBOX, OPML, ATOM0.3, HTML, JS
-echo $rss->saveFeed("RSS0.91", "feed.xml");
-
-
-
-***************************************************************************/
-
-?>
+<?php
+/***************************************************************************
+
+FeedCreator class v1.7.2
+originally (c) Kai Blankenhorn
+www.bitfolge.de
+kaib@bitfolge.de
+v1.3 work by Scott Reynen (scott@randomchaos.com) and Kai Blankenhorn
+v1.5 OPML support by Dirk Clemens
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+****************************************************************************
+
+
+Changelog:
+
+v1.7.2 10-11-04
+ license changed to LGPL
+
+v1.7.1
+ fixed a syntax bug
+ fixed left over debug code
+
+v1.7 07-18-04
+ added HTML and JavaScript feeds (configurable via CSS) (thanks to Pascal Van Hecke)
+ added HTML descriptions for all feed formats (thanks to Pascal Van Hecke)
+ added a switch to select an external stylesheet (thanks to Pascal Van Hecke)
+ changed default content-type to application/xml
+ added character encoding setting
+ fixed numerous smaller bugs (thanks to Sören Fuhrmann of golem.de)
+ improved changing ATOM versions handling (thanks to August Trometer)
+ improved the UniversalFeedCreator's useCached method (thanks to Sören Fuhrmann of golem.de)
+ added charset output in HTTP headers (thanks to Sören Fuhrmann of golem.de)
+ added Slashdot namespace to RSS 1.0 (thanks to Sören Fuhrmann of golem.de)
+
+v1.6 05-10-04
+ added stylesheet to RSS 1.0 feeds
+ fixed generator comment (thanks Kevin L. Papendick and Tanguy Pruvot)
+ fixed RFC822 date bug (thanks Tanguy Pruvot)
+ added TimeZone customization for RFC8601 (thanks Tanguy Pruvot)
+ fixed Content-type could be empty (thanks Tanguy Pruvot)
+ fixed author/creator in RSS1.0 (thanks Tanguy Pruvot)
+
+v1.6 beta 02-28-04
+ added Atom 0.3 support (not all features, though)
+ improved OPML 1.0 support (hopefully - added more elements)
+ added support for arbitrary additional elements (use with caution)
+ code beautification :-)
+ considered beta due to some internal changes
+
+v1.5.1 01-27-04
+ fixed some RSS 1.0 glitches (thanks to Stéphane Vanpoperynghe)
+ fixed some inconsistencies between documentation and code (thanks to Timothy Martin)
+
+v1.5 01-06-04
+ added support for OPML 1.0
+ added more documentation
+
+v1.4 11-11-03
+ optional feed saving and caching
+ improved documentation
+ minor improvements
+
+v1.3 10-02-03
+ renamed to FeedCreator, as it not only creates RSS anymore
+ added support for mbox
+ tentative support for echo/necho/atom/pie/???
+
+v1.2 07-20-03
+ intelligent auto-truncating of RSS 0.91 attributes
+ don't create some attributes when they're not set
+ documentation improved
+ fixed a real and a possible bug with date conversions
+ code cleanup
+
+v1.1 06-29-03
+ added images to feeds
+ now includes most RSS 0.91 attributes
+ added RSS 2.0 feeds
+
+v1.0 06-24-03
+ initial release
+
+
+
+***************************************************************************/
+
+/*** GENERAL USAGE *********************************************************
+
+include("feedcreator.class.php");
+
+$rss = new UniversalFeedCreator();
+$rss->useCached(); // use cached version if age<1 hour
+$rss->title = "PHP news";
+$rss->description = "daily news from the PHP scripting world";
+
+//optional
+$rss->descriptionTruncSize = 500;
+$rss->descriptionHtmlSyndicated = true;
+
+$rss->link = "http://www.dailyphp.net/news";
+$rss->syndicationURL = "http://www.dailyphp.net/".$_SERVER["PHP_SELF"];
+
+$image = new FeedImage();
+$image->title = "dailyphp.net logo";
+$image->url = "http://www.dailyphp.net/images/logo.gif";
+$image->link = "http://www.dailyphp.net";
+$image->description = "Feed provided by dailyphp.net. Click to visit.";
+
+//optional
+$image->descriptionTruncSize = 500;
+$image->descriptionHtmlSyndicated = true;
+
+$rss->image = $image;
+
+// get your news items from somewhere, e.g. your database:
+mysql_select_db($dbHost, $dbUser, $dbPass);
+$res = mysql_query("SELECT * FROM news ORDER BY newsdate DESC");
+while ($data = mysql_fetch_object($res)) {
+ $item = new FeedItem();
+ $item->title = $data->title;
+ $item->link = $data->url;
+ $item->description = $data->short;
+
+ //optional
+ item->descriptionTruncSize = 500;
+ item->descriptionHtmlSyndicated = true;
+
+ $item->date = $data->newsdate;
+ $item->source = "http://www.dailyphp.net";
+ $item->author = "John Doe";
+
+ $rss->addItem($item);
+}
+
+// valid format strings are: RSS0.91, RSS1.0, RSS2.0, PIE0.1 (deprecated),
+// MBOX, OPML, ATOM, ATOM0.3, HTML, JS
+echo $rss->saveFeed("RSS1.0", "news/feed.xml");
+
+
+***************************************************************************
+* A little setup *
+**************************************************************************/
+
+// your local timezone, set to "" to disable or for GMT
+define("TIME_ZONE","+01:00");
+
+
+
+
+/**
+ * Version string.
+ **/
+define("FEEDCREATOR_VERSION", "FeedCreator 1.7.2");
+
+
+
+/**
+ * A FeedItem is a part of a FeedCreator feed.
+ *
+ * @author Kai Blankenhorn <kaib@bitfolge.de>
+ * @since 1.3
+ */
+class FeedItem extends HtmlDescribable {
+ /**
+ * Mandatory attributes of an item.
+ */
+ var $title, $description, $link;
+
+ /**
+ * Optional attributes of an item.
+ */
+ var $author, $authorEmail, $image, $category, $comments, $guid, $source, $creator;
+
+ /**
+ * Publishing date of an item. May be in one of the following formats:
+ *
+ * RFC 822:
+ * "Mon, 20 Jan 03 18:05:41 +0400"
+ * "20 Jan 03 18:05:41 +0000"
+ *
+ * ISO 8601:
+ * "2003-01-20T18:05:41+04:00"
+ *
+ * Unix:
+ * 1043082341
+ */
+ var $date;
+
+ /**
+ * Any additional elements to include as an assiciated array. All $key => $value pairs
+ * will be included unencoded in the feed item in the form
+ * <$key>$value</$key>
+ * Again: No encoding will be used! This means you can invalidate or enhance the feed
+ * if $value contains markup. This may be abused to embed tags not implemented by
+ * the FeedCreator class used.
+ */
+ var $additionalElements = Array();
+
+ // on hold
+ // var $source;
+}
+
+
+
+/**
+ * An FeedImage may be added to a FeedCreator feed.
+ * @author Kai Blankenhorn <kaib@bitfolge.de>
+ * @since 1.3
+ */
+class FeedImage extends HtmlDescribable {
+ /**
+ * Mandatory attributes of an image.
+ */
+ var $title, $url, $link;
+
+ /**
+ * Optional attributes of an image.
+ */
+ var $width, $height, $description;
+}
+
+
+
+/**
+ * An HtmlDescribable is an item within a feed that can have a description that may
+ * include HTML markup.
+ */
+class HtmlDescribable {
+ /**
+ * Indicates whether the description field should be rendered in HTML.
+ */
+ var $descriptionHtmlSyndicated;
+
+ /**
+ * Indicates whether and to how many characters a description should be truncated.
+ */
+ var $descriptionTruncSize;
+
+ /**
+ * Returns a formatted description field, depending on descriptionHtmlSyndicated and
+ * $descriptionTruncSize properties
+ * @return string the formatted description
+ */
+ function getDescription() {
+ $descriptionField = new FeedHtmlField($this->description);
+ $descriptionField->syndicateHtml = $this->descriptionHtmlSyndicated;
+ $descriptionField->truncSize = $this->descriptionTruncSize;
+ return $descriptionField->output();
+ }
+
+}
+
+
+/**
+ * An FeedHtmlField describes and generates
+ * a feed, item or image html field (probably a description). Output is
+ * generated based on $truncSize, $syndicateHtml properties.
+ * @author Pascal Van Hecke <feedcreator.class.php@vanhecke.info>
+ * @version 1.6
+ */
+class FeedHtmlField {
+ /**
+ * Mandatory attributes of a FeedHtmlField.
+ */
+ var $rawFieldContent;
+
+ /**
+ * Optional attributes of a FeedHtmlField.
+ *
+ */
+ var $truncSize, $syndicateHtml;
+
+ /**
+ * Creates a new instance of FeedHtmlField.
+ * @param $string: if given, sets the rawFieldContent property
+ */
+ function FeedHtmlField($parFieldContent) {
+ if ($parFieldContent) {
+ $this->rawFieldContent = $parFieldContent;
+ }
+ }
+
+
+ /**
+ * Creates the right output, depending on $truncSize, $syndicateHtml properties.
+ * @return string the formatted field
+ */
+ function output() {
+ // when field available and syndicated in html we assume
+ // - valid html in $rawFieldContent and we enclose in CDATA tags
+ // - no truncation (truncating risks producing invalid html)
+ if (!$this->rawFieldContent) {
+ $result = "";
+ } elseif ($this->syndicateHtml) {
+ $result = "<![CDATA[".$this->rawFieldContent."]]>";
+ } else {
+ if ($this->truncSize and is_int($this->truncSize)) {
+ $result = FeedCreator::iTrunc(htmlspecialchars($this->rawFieldContent),$this->truncSize);
+ } else {
+ $result = htmlspecialchars($this->rawFieldContent);
+ }
+ }
+ return $result;
+ }
+
+}
+
+
+
+/**
+ * UniversalFeedCreator lets you choose during runtime which
+ * format to build.
+ * For general usage of a feed class, see the FeedCreator class
+ * below or the example above.
+ *
+ * @since 1.3
+ * @author Kai Blankenhorn <kaib@bitfolge.de>
+ */
+class UniversalFeedCreator extends FeedCreator {
+ var $_feed;
+
+ function _setFormat($format) {
+ switch (strtoupper($format)) {
+
+ case "2.0":
+ // fall through
+ case "RSS2.0":
+ $this->_feed = new RSSCreator20();
+ break;
+
+ case "1.0":
+ // fall through
+ case "RSS1.0":
+ $this->_feed = new RSSCreator10();
+ break;
+
+ case "0.91":
+ // fall through
+ case "RSS0.91":
+ $this->_feed = new RSSCreator091();
+ break;
+
+ case "PIE0.1":
+ $this->_feed = new PIECreator01();
+ break;
+
+ case "MBOX":
+ $this->_feed = new MBOXCreator();
+ break;
+
+ case "OPML":
+ $this->_feed = new OPMLCreator();
+ break;
+
+ case "ATOM":
+ // fall through: always the latest ATOM version
+
+ case "ATOM0.3":
+ $this->_feed = new AtomCreator03();
+ break;
+
+ case "HTML":
+ $this->_feed = new HTMLCreator();
+ break;
+
+ case "JS":
+ // fall through
+ case "JAVASCRIPT":
+ $this->_feed = new JSCreator();
+ break;
+
+ default:
+ $this->_feed = new RSSCreator091();
+ break;
+ }
+
+ $vars = get_object_vars($this);
+ foreach ($vars as $key => $value) {
+ // prevent overwriting of properties "contentType", "encoding"; do not copy "_feed" itself
+ if (!in_array($key, array("_feed", "contentType", "encoding"))) {
+ $this->_feed->{$key} = $this->{$key};
+ }
+ }
+ }
+
+ /**
+ * Creates a syndication feed based on the items previously added.
+ *
+ * @see FeedCreator::addItem()
+ * @param string format format the feed should comply to. Valid values are:
+ * "PIE0.1", "mbox", "RSS0.91", "RSS1.0", "RSS2.0", "OPML", "ATOM0.3", "HTML", "JS"
+ * @return string the contents of the feed.
+ */
+ function createFeed($format = "RSS0.91") {
+ $this->_setFormat($format);
+ return $this->_feed->createFeed();
+ }
+
+
+
+ /**
+ * Saves this feed as a file on the local disk. After the file is saved, an HTTP redirect
+ * header may be sent to redirect the use to the newly created file.
+ * @since 1.4
+ *
+ * @param string format format the feed should comply to. Valid values are:
+ * "PIE0.1" (deprecated), "mbox", "RSS0.91", "RSS1.0", "RSS2.0", "OPML", "ATOM", "ATOM0.3", "HTML", "JS"
+ * @param string filename optional the filename where a recent version of the feed is saved. If not specified, the filename is $_SERVER["PHP_SELF"] with the extension changed to .xml (see _generateFilename()).
+ * @param boolean displayContents optional send the content of the file or not. If true, the file will be sent in the body of the response.
+ */
+ function saveFeed($format="RSS0.91", $filename="", $displayContents=true) {
+ $this->_setFormat($format);
+ $this->_feed->saveFeed($filename, $displayContents);
+ }
+
+
+ /**
+ * Turns on caching and checks if there is a recent version of this feed in the cache.
+ * If there is, an HTTP redirect header is sent.
+ * To effectively use caching, you should create the FeedCreator object and call this method
+ * before anything else, especially before you do the time consuming task to build the feed
+ * (web fetching, for example).
+ *
+ * @param string format format the feed should comply to. Valid values are:
+ * "PIE0.1" (deprecated), "mbox", "RSS0.91", "RSS1.0", "RSS2.0", "OPML", "ATOM0.3".
+ * @param filename string optional the filename where a recent version of the feed is saved. If not specified, the filename is $_SERVER["PHP_SELF"] with the extension changed to .xml (see _generateFilename()).
+ * @param timeout int optional the timeout in seconds before a cached version is refreshed (defaults to 3600 = 1 hour)
+ */
+ function useCached($format="RSS0.91", $filename="", $timeout=3600) {
+ $this->_setFormat($format);
+ $this->_feed->useCached($filename, $timeout);
+ }
+
+}
+
+
+/**
+ * FeedCreator is the abstract base implementation for concrete
+ * implementations that implement a specific format of syndication.
+ *
+ * @abstract
+ * @author Kai Blankenhorn <kaib@bitfolge.de>
+ * @since 1.4
+ */
+class FeedCreator extends HtmlDescribable {
+
+ /**
+ * Mandatory attributes of a feed.
+ */
+ var $title, $description, $link;
+
+
+ /**
+ * Optional attributes of a feed.
+ */
+ var $syndicationURL, $image, $language, $copyright, $pubDate, $lastBuildDate, $editor, $editorEmail, $webmaster, $category, $docs, $ttl, $rating, $skipHours, $skipDays;
+
+ /**
+ * The url of the external xsl stylesheet used to format the naked rss feed.
+ * Ignored in the output when empty.
+ */
+ var $xslStyleSheet = "";
+
+
+ /**
+ * @access private
+ */
+ var $items = Array();
+
+
+ /**
+ * This feed's MIME content type.
+ * @since 1.4
+ * @access private
+ */
+ var $contentType = "application/xml";
+
+
+ /**
+ * This feed's character encoding.
+ * @since 1.6.1
+ **/
+ var $encoding = "ISO-8859-1";
+
+
+ /**
+ * Any additional elements to include as an assiciated array. All $key => $value pairs
+ * will be included unencoded in the feed in the form
+ * <$key>$value</$key>
+ * Again: No encoding will be used! This means you can invalidate or enhance the feed
+ * if $value contains markup. This may be abused to embed tags not implemented by
+ * the FeedCreator class used.
+ */
+ var $additionalElements = Array();
+
+
+ /**
+ * Adds an FeedItem to the feed.
+ *
+ * @param object FeedItem $item The FeedItem to add to the feed.
+ * @access public
+ */
+ function addItem($item) {
+ $this->items[] = $item;
+ }
+
+
+ /**
+ * Truncates a string to a certain length at the most sensible point.
+ * First, if there's a '.' character near the end of the string, the string is truncated after this character.
+ * If there is no '.', the string is truncated after the last ' ' character.
+ * If the string is truncated, " ..." is appended.
+ * If the string is already shorter than $length, it is returned unchanged.
+ *
+ * @static
+ * @param string string A string to be truncated.
+ * @param int length the maximum length the string should be truncated to
+ * @return string the truncated string
+ */
+ function iTrunc($string, $length) {
+ if (strlen($string)<=$length) {
+ return $string;
+ }
+
+ $pos = strrpos($string,".");
+ if ($pos>=$length-4) {
+ $string = substr($string,0,$length-4);
+ $pos = strrpos($string,".");
+ }
+ if ($pos>=$length*0.4) {
+ return substr($string,0,$pos+1)." ...";
+ }
+
+ $pos = strrpos($string," ");
+ if ($pos>=$length-4) {
+ $string = substr($string,0,$length-4);
+ $pos = strrpos($string," ");
+ }
+ if ($pos>=$length*0.4) {
+ return substr($string,0,$pos)." ...";
+ }
+
+ return substr($string,0,$length-4)." ...";
+
+ }
+
+
+ /**
+ * Creates a comment indicating the generator of this feed.
+ * The format of this comment seems to be recognized by
+ * Syndic8.com.
+ */
+ function _createGeneratorComment() {
+ return "<!-- generator=\"".FEEDCREATOR_VERSION."\" -->\n";
+ }
+
+
+ /**
+ * Creates a string containing all additional elements specified in
+ * $additionalElements.
+ * @param elements array an associative array containing key => value pairs
+ * @param indentString string a string that will be inserted before every generated line
+ * @return string the XML tags corresponding to $additionalElements
+ */
+ function _createAdditionalElements($elements, $indentString="") {
+ $ae = "";
+ if (is_array($elements)) {
+ foreach($elements AS $key => $value) {
+ $ae.= $indentString."<$key>$value</$key>\n";
+ }
+ }
+ return $ae;
+ }
+
+ function _createStylesheetReferences() {
+ $xml = "";
+ if ($this->cssStyleSheet) $xml .= "<?xml-stylesheet href=\"".$this->cssStyleSheet."\" type=\"text/css\"?>\n";
+ if ($this->xslStyleSheet) $xml .= "<?xml-stylesheet href=\"".$this->xslStyleSheet."\" type=\"text/xsl\"?>\n";
+ return $xml;
+ }
+
+
+ /**
+ * Builds the feed's text.
+ * @abstract
+ * @return string the feed's complete text
+ */
+ function createFeed() {
+ }
+
+ /**
+ * Generate a filename for the feed cache file. The result will be $_SERVER["PHP_SELF"] with the extension changed to .xml.
+ * For example:
+ *
+ * echo $_SERVER["PHP_SELF"]."\n";
+ * echo FeedCreator::_generateFilename();
+ *
+ * would produce:
+ *
+ * /rss/latestnews.php
+ * latestnews.xml
+ *
+ * @return string the feed cache filename
+ * @since 1.4
+ * @access private
+ */
+ function _generateFilename() {
+ $fileInfo = pathinfo($_SERVER["PHP_SELF"]);
+ return substr($fileInfo["basename"],0,-(strlen($fileInfo["extension"])+1)).".xml";
+ }
+
+
+ /**
+ * @since 1.4
+ * @access private
+ */
+ function _redirect($filename) {
+ // attention, heavily-commented-out-area
+
+ // maybe use this in addition to file time checking
+ //Header("Expires: ".date("r",time()+$this->_timeout));
+
+ /* no caching at all, doesn't seem to work as good:
+ Header("Cache-Control: no-cache");
+ Header("Pragma: no-cache");
+ */
+
+ // HTTP redirect, some feed readers' simple HTTP implementations don't follow it
+ //Header("Location: ".$filename);
+
+ Header("Content-Type: ".$this->contentType."; charset=".$this->encoding."; filename=".basename($filename));
+ Header("Content-Disposition: inline; filename=".basename($filename));
+ readfile($filename, "r");
+ die();
+ }
+
+ /**
+ * Turns on caching and checks if there is a recent version of this feed in the cache.
+ * If there is, an HTTP redirect header is sent.
+ * To effectively use caching, you should create the FeedCreator object and call this method
+ * before anything else, especially before you do the time consuming task to build the feed
+ * (web fetching, for example).
+ * @since 1.4
+ * @param filename string optional the filename where a recent version of the feed is saved. If not specified, the filename is $_SERVER["PHP_SELF"] with the extension changed to .xml (see _generateFilename()).
+ * @param timeout int optional the timeout in seconds before a cached version is refreshed (defaults to 3600 = 1 hour)
+ */
+ function useCached($filename="", $timeout=3600) {
+ $this->_timeout = $timeout;
+ if ($filename=="") {
+ $filename = $this->_generateFilename();
+ }
+ if (file_exists($filename) AND (time()-filemtime($filename) < $timeout)) {
+ $this->_redirect($filename);
+ }
+ }
+
+
+ /**
+ * Saves this feed as a file on the local disk. After the file is saved, a redirect
+ * header may be sent to redirect the user to the newly created file.
+ * @since 1.4
+ *
+ * @param filename string optional the filename where a recent version of the feed is saved. If not specified, the filename is $_SERVER["PHP_SELF"] with the extension changed to .xml (see _generateFilename()).
+ * @param redirect boolean optional send an HTTP redirect header or not. If true, the user will be automatically redirected to the created file.
+ */
+ function saveFeed($filename="", $displayContents=true) {
+ if ($filename=="") {
+ $filename = $this->_generateFilename();
+ }
+ $feedFile = fopen($filename, "w+");
+ if ($feedFile) {
+ fputs($feedFile,$this->createFeed());
+ fclose($feedFile);
+ if ($displayContents) {
+ $this->_redirect($filename);
+ }
+ } else {
+ echo "<br /><strong>Error creating feed file, please check write permissions.</strong><br />";
+ }
+ }
+
+}
+
+
+/**
+ * FeedDate is an internal class that stores a date for a feed or feed item.
+ * Usually, you won't need to use this.
+ */
+class FeedDate {
+ var $unix;
+
+ /**
+ * Creates a new instance of FeedDate representing a given date.
+ * Accepts RFC 822, ISO 8601 date formats as well as unix time stamps.
+ * @param mixed $dateString optional the date this FeedDate will represent. If not specified, the current date and time is used.
+ */
+ function FeedDate($dateString="") {
+ if ($dateString=="") $dateString = date("r");
+
+ if (is_integer($dateString)) {
+ $this->unix = $dateString;
+ return;
+ }
+ if (preg_match("~(?:(?:Mon|Tue|Wed|Thu|Fri|Sat|Sun),\\s+)?(\\d{1,2})\\s+([a-zA-Z]{3})\\s+(\\d{4})\\s+(\\d{2}):(\\d{2}):(\\d{2})\\s+(.*)~",$dateString,$matches)) {
+ $months = Array("Jan"=>1,"Feb"=>2,"Mar"=>3,"Apr"=>4,"May"=>5,"Jun"=>6,"Jul"=>7,"Aug"=>8,"Sep"=>9,"Oct"=>10,"Nov"=>11,"Dec"=>12);
+ $this->unix = mktime($matches[4],$matches[5],$matches[6],$months[$matches[2]],$matches[1],$matches[3]);
+ if (substr($matches[7],0,1)=='+' OR substr($matches[7],0,1)=='-') {
+ $tzOffset = (substr($matches[7],0,3) * 60 + substr($matches[7],-2)) * 60;
+ } else {
+ if (strlen($matches[7])==1) {
+ $oneHour = 3600;
+ $ord = ord($matches[7]);
+ if ($ord < ord("M")) {
+ $tzOffset = (ord("A") - $ord - 1) * $oneHour;
+ } elseif ($ord >= ord("M") AND $matches[7]!="Z") {
+ $tzOffset = ($ord - ord("M")) * $oneHour;
+ } elseif ($matches[7]=="Z") {
+ $tzOffset = 0;
+ }
+ }
+ switch ($matches[7]) {
+ case "UT":
+ case "GMT": $tzOffset = 0;
+ }
+ }
+ $this->unix += $tzOffset;
+ return;
+ }
+ if (preg_match("~(\\d{4})-(\\d{2})-(\\d{2})T(\\d{2}):(\\d{2}):(\\d{2})(.*)~",$dateString,$matches)) {
+ $this->unix = mktime($matches[4],$matches[5],$matches[6],$matches[2],$matches[3],$matches[1]);
+ if (substr($matches[7],0,1)=='+' OR substr($matches[7],0,1)=='-') {
+ $tzOffset = (substr($matches[7],0,3) * 60 + substr($matches[7],-2)) * 60;
+ } else {
+ if ($matches[7]=="Z") {
+ $tzOffset = 0;
+ }
+ }
+ $this->unix += $tzOffset;
+ return;
+ }
+ $this->unix = 0;
+ }
+
+ /**
+ * Gets the date stored in this FeedDate as an RFC 822 date.
+ *
+ * @return a date in RFC 822 format
+ */
+ function rfc822() {
+ //return gmdate("r",$this->unix);
+ $date = gmdate("D, d M Y H:i:s", $this->unix);
+ if (TIME_ZONE!="") $date .= " ".str_replace(":","",TIME_ZONE);
+ return $date;
+ }
+
+ /**
+ * Gets the date stored in this FeedDate as an ISO 8601 date.
+ *
+ * @return a date in ISO 8601 format
+ */
+ function iso8601() {
+ $date = gmdate("Y-m-d\TH:i:sO",$this->unix);
+ $date = substr($date,0,22) . ':' . substr($date,-2);
+ if (TIME_ZONE!="") $date = str_replace("+00:00",TIME_ZONE,$date);
+ return $date;
+ }
+
+ /**
+ * Gets the date stored in this FeedDate as unix time stamp.
+ *
+ * @return a date as a unix time stamp
+ */
+ function unix() {
+ return $this->unix;
+ }
+}
+
+
+/**
+ * RSSCreator10 is a FeedCreator that implements RDF Site Summary (RSS) 1.0.
+ *
+ * @see http://www.purl.org/rss/1.0/
+ * @since 1.3
+ * @author Kai Blankenhorn <kaib@bitfolge.de>
+ */
+class RSSCreator10 extends FeedCreator {
+
+ /**
+ * Builds the RSS feed's text. The feed will be compliant to RDF Site Summary (RSS) 1.0.
+ * The feed will contain all items previously added in the same order.
+ * @return string the feed's complete text
+ */
+ function createFeed() {
+ $feed = "<?xml version=\"1.0\" encoding=\"".$this->encoding."\"?>\n";
+ $feed.= $this->_createGeneratorComment();
+ if ($this->cssStyleSheet=="") {
+ $cssStyleSheet = "http://www.w3.org/2000/08/w3c-synd/style.css";
+ }
+ $feed.= $this->_createStylesheetReferences();
+ $feed.= "<rdf:RDF\n";
+ $feed.= " xmlns=\"http://purl.org/rss/1.0/\"\n";
+ $feed.= " xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"\n";
+ $feed.= " xmlns:slash=\"http://purl.org/rss/1.0/modules/slash/\"\n";
+ $feed.= " xmlns:dc=\"http://purl.org/dc/elements/1.1/\">\n";
+ $feed.= " <channel rdf:about=\"".$this->syndicationURL."\">\n";
+ $feed.= " <title>".htmlspecialchars($this->title)."</title>\n";
+ $feed.= " <description>".htmlspecialchars($this->description)."</description>\n";
+ $feed.= " <link>".$this->link."</link>\n";
+ if ($this->image!=null) {
+ $feed.= " <image rdf:resource=\"".$this->image->url."\" />\n";
+ }
+ $now = new FeedDate();
+ $feed.= " <dc:date>".htmlspecialchars($now->iso8601())."</dc:date>\n";
+ $feed.= " <items>\n";
+ $feed.= " <rdf:Seq>\n";
+ for ($i=0;$i<count($this->items);$i++) {
+ $feed.= " <rdf:li rdf:resource=\"".htmlspecialchars($this->items[$i]->link)."\"/>\n";
+ }
+ $feed.= " </rdf:Seq>\n";
+ $feed.= " </items>\n";
+ $feed.= " </channel>\n";
+ if ($this->image!=null) {
+ $feed.= " <image rdf:about=\"".$this->image->url."\">\n";
+ $feed.= " <title>".$this->image->title."</title>\n";
+ $feed.= " <link>".$this->image->link."</link>\n";
+ $feed.= " <url>".$this->image->url."</url>\n";
+ $feed.= " </image>\n";
+ }
+ $feed.= $this->_createAdditionalElements($this->additionalElements, " ");
+
+ for ($i=0;$i<count($this->items);$i++) {
+ $feed.= " <item rdf:about=\"".htmlspecialchars($this->items[$i]->link)."\">\n";
+ //$feed.= " <dc:type>Posting</dc:type>\n";
+ $feed.= " <dc:format>text/html</dc:format>\n";
+ if ($this->items[$i]->date!=null) {
+ $itemDate = new FeedDate($this->items[$i]->date);
+ $feed.= " <dc:date>".htmlspecialchars($itemDate->iso8601())."</dc:date>\n";
+ }
+ if ($this->items[$i]->source!="") {
+ $feed.= " <dc:source>".htmlspecialchars($this->items[$i]->source)."</dc:source>\n";
+ }
+ if ($this->items[$i]->author!="") {
+ $feed.= " <dc:creator>".htmlspecialchars($this->items[$i]->author)."</dc:creator>\n";
+ }
+ $feed.= " <title>".htmlspecialchars(strip_tags(strtr($this->items[$i]->title,"\n\r"," ")))."</title>\n";
+ $feed.= " <link>".htmlspecialchars($this->items[$i]->link)."</link>\n";
+ $feed.= " <description>".htmlspecialchars($this->items[$i]->description)."</description>\n";
+ $feed.= $this->_createAdditionalElements($this->items[$i]->additionalElements, " ");
+ $feed.= " </item>\n";
+ }
+ $feed.= "</rdf:RDF>\n";
+ return $feed;
+ }
+}
+
+
+
+/**
+ * RSSCreator091 is a FeedCreator that implements RSS 0.91 Spec, revision 3.
+ *
+ * @see http://my.netscape.com/publish/formats/rss-spec-0.91.html
+ * @since 1.3
+ * @author Kai Blankenhorn <kaib@bitfolge.de>
+ */
+class RSSCreator091 extends FeedCreator {
+
+ /**
+ * Stores this RSS feed's version number.
+ * @access private
+ */
+ var $RSSVersion;
+
+ function RSSCreator091() {
+ $this->_setRSSVersion("0.91");
+ $this->contentType = "application/rss+xml";
+ }
+
+ /**
+ * Sets this RSS feed's version number.
+ * @access private
+ */
+ function _setRSSVersion($version) {
+ $this->RSSVersion = $version;
+ }
+
+ /**
+ * Builds the RSS feed's text. The feed will be compliant to RDF Site Summary (RSS) 1.0.
+ * The feed will contain all items previously added in the same order.
+ * @return string the feed's complete text
+ */
+ function createFeed() {
+ $feed = "<?xml version=\"1.0\" encoding=\"".$this->encoding."\"?>\n";
+ $feed.= $this->_createGeneratorComment();
+ $feed.= $this->_createStylesheetReferences();
+ $feed.= "<rss version=\"".$this->RSSVersion."\" xmlns:atom=\"http://www.w3.org/2005/Atom\">\n";
+ $feed.= " <channel>\n";
+ $feed.= " <title>".FeedCreator::iTrunc(htmlspecialchars($this->title),100)."</title>\n";
+ $this->descriptionTruncSize = 500;
+ $feed.= " <description>".$this->getDescription()."</description>\n";
+ $feed.= " <link>".$this->link."</link>\n";
+ $feed.= " <atom:link href=\"".$this->syndicationURL."\" rel=\"self\" type=\"application/rss+xml\" />\n";
+ $now = new FeedDate();
+ $feed.= " <lastBuildDate>".htmlspecialchars($now->rfc822())."</lastBuildDate>\n";
+ $feed.= " <generator>".FEEDCREATOR_VERSION."</generator>\n";
+
+ if ($this->image!=null) {
+ $feed.= " <image>\n";
+ $feed.= " <url>".$this->image->url."</url>\n";
+ $feed.= " <title>".FeedCreator::iTrunc(htmlspecialchars($this->image->title),100)."</title>\n";
+ $feed.= " <link>".$this->image->link."</link>\n";
+ if ($this->image->width!="") {
+ $feed.= " <width>".$this->image->width."</width>\n";
+ }
+ if ($this->image->height!="") {
+ $feed.= " <height>".$this->image->height."</height>\n";
+ }
+ if ($this->image->description!="") {
+ $feed.= " <description>".$this->image->getDescription()."</description>\n";
+ }
+ $feed.= " </image>\n";
+ }
+ if ($this->language!="") {
+ $feed.= " <language>".$this->language."</language>\n";
+ }
+ if ($this->copyright!="") {
+ $feed.= " <copyright>".FeedCreator::iTrunc(htmlspecialchars($this->copyright),100)."</copyright>\n";
+ }
+ if ($this->editor!="") {
+ $feed.= " <managingEditor>".FeedCreator::iTrunc(htmlspecialchars($this->editor),100)."</managingEditor>\n";
+ }
+ if ($this->webmaster!="") {
+ $feed.= " <webMaster>".FeedCreator::iTrunc(htmlspecialchars($this->webmaster),100)."</webMaster>\n";
+ }
+ if ($this->pubDate!="") {
+ $pubDate = new FeedDate($this->pubDate);
+ $feed.= " <pubDate>".htmlspecialchars($pubDate->rfc822())."</pubDate>\n";
+ }
+ if ($this->category!="") {
+ $feed.= " <category>".htmlspecialchars($this->category)."</category>\n";
+ }
+ if ($this->docs!="") {
+ $feed.= " <docs>".FeedCreator::iTrunc(htmlspecialchars($this->docs),500)."</docs>\n";
+ }
+ if ($this->ttl!="") {
+ $feed.= " <ttl>".htmlspecialchars($this->ttl)."</ttl>\n";
+ }
+ if ($this->rating!="") {
+ $feed.= " <rating>".FeedCreator::iTrunc(htmlspecialchars($this->rating),500)."</rating>\n";
+ }
+ if ($this->skipHours!="") {
+ $feed.= " <skipHours>".htmlspecialchars($this->skipHours)."</skipHours>\n";
+ }
+ if ($this->skipDays!="") {
+ $feed.= " <skipDays>".htmlspecialchars($this->skipDays)."</skipDays>\n";
+ }
+ $feed.= $this->_createAdditionalElements($this->additionalElements, " ");
+
+ for ($i=0;$i<count($this->items);$i++) {
+ $feed.= " <item>\n";
+ $feed.= " <title>".FeedCreator::iTrunc(htmlspecialchars(strip_tags($this->items[$i]->title)),100)."</title>\n";
+ $feed.= " <link>".htmlspecialchars($this->items[$i]->link)."</link>\n";
+ $feed.= " <description>".$this->items[$i]->getDescription()."</description>\n";
+
+ if ($this->items[$i]->author!="") {
+ $feed.= " <author>".htmlspecialchars($this->items[$i]->author)."</author>\n";
+ }
+ /*
+ // on hold
+ if ($this->items[$i]->source!="") {
+ $feed.= " <source>".htmlspecialchars($this->items[$i]->source)."</source>\n";
+ }
+ */
+ if ($this->items[$i]->category!="") {
+ $feed.= " <category>".htmlspecialchars($this->items[$i]->category)."</category>\n";
+ }
+ if ($this->items[$i]->comments!="") {
+ $feed.= " <comments>".htmlspecialchars($this->items[$i]->comments)."</comments>\n";
+ }
+ if ($this->items[$i]->date!="") {
+ $itemDate = new FeedDate($this->items[$i]->date);
+ $feed.= " <pubDate>".htmlspecialchars($itemDate->rfc822())."</pubDate>\n";
+ }
+ if ($this->items[$i]->guid!="") {
+ $feed.= " <guid>".htmlspecialchars($this->items[$i]->guid)."</guid>\n";
+ }
+ $feed.= $this->_createAdditionalElements($this->items[$i]->additionalElements, " ");
+ $feed.= " </item>\n";
+ }
+ $feed.= " </channel>\n";
+ $feed.= "</rss>\n";
+ return $feed;
+ }
+}
+
+
+
+/**
+ * RSSCreator20 is a FeedCreator that implements RDF Site Summary (RSS) 2.0.
+ *
+ * @see http://backend.userland.com/rss
+ * @since 1.3
+ * @author Kai Blankenhorn <kaib@bitfolge.de>
+ */
+class RSSCreator20 extends RSSCreator091 {
+
+ function RSSCreator20() {
+ parent::_setRSSVersion("2.0");
+ }
+
+}
+
+
+/**
+ * PIECreator01 is a FeedCreator that implements the emerging PIE specification,
+ * as in http://intertwingly.net/wiki/pie/Syntax.
+ *
+ * @deprecated
+ * @since 1.3
+ * @author Scott Reynen <scott@randomchaos.com> and Kai Blankenhorn <kaib@bitfolge.de>
+ */
+class PIECreator01 extends FeedCreator {
+
+ function PIECreator01() {
+ $this->encoding = "utf-8";
+ }
+
+ function createFeed() {
+ $feed = "<?xml version=\"1.0\" encoding=\"".$this->encoding."\"?>\n";
+ $feed.= $this->_createStylesheetReferences();
+ $feed.= "<feed version=\"0.1\" xmlns=\"http://example.com/newformat#\">\n";
+ $feed.= " <title>".FeedCreator::iTrunc(htmlspecialchars($this->title),100)."</title>\n";
+ $this->truncSize = 500;
+ $feed.= " <subtitle>".$this->getDescription()."</subtitle>\n";
+ $feed.= " <link>".$this->link."</link>\n";
+ for ($i=0;$i<count($this->items);$i++) {
+ $feed.= " <entry>\n";
+ $feed.= " <title>".FeedCreator::iTrunc(htmlspecialchars(strip_tags($this->items[$i]->title)),100)."</title>\n";
+ $feed.= " <link>".htmlspecialchars($this->items[$i]->link)."</link>\n";
+ $itemDate = new FeedDate($this->items[$i]->date);
+ $feed.= " <created>".htmlspecialchars($itemDate->iso8601())."</created>\n";
+ $feed.= " <issued>".htmlspecialchars($itemDate->iso8601())."</issued>\n";
+ $feed.= " <modified>".htmlspecialchars($itemDate->iso8601())."</modified>\n";
+ $feed.= " <id>".htmlspecialchars($this->items[$i]->guid)."</id>\n";
+ if ($this->items[$i]->author!="") {
+ $feed.= " <author>\n";
+ $feed.= " <name>".htmlspecialchars($this->items[$i]->author)."</name>\n";
+ if ($this->items[$i]->authorEmail!="") {
+ $feed.= " <email>".$this->items[$i]->authorEmail."</email>\n";
+ }
+ $feed.=" </author>\n";
+ }
+ $feed.= " <content type=\"text/html\" xml:lang=\"en-us\">\n";
+ $feed.= " <div xmlns=\"http://www.w3.org/1999/xhtml\">".$this->items[$i]->getDescription()."</div>\n";
+ $feed.= " </content>\n";
+ $feed.= " </entry>\n";
+ }
+ $feed.= "</feed>\n";
+ return $feed;
+ }
+}
+
+
+/**
+ * AtomCreator03 is a FeedCreator that implements the atom specification,
+ * as in http://www.intertwingly.net/wiki/pie/FrontPage.
+ * Please note that just by using AtomCreator03 you won't automatically
+ * produce valid atom files. For example, you have to specify either an editor
+ * for the feed or an author for every single feed item.
+ *
+ * Some elements have not been implemented yet. These are (incomplete list):
+ * author URL, item author's email and URL, item contents, alternate links,
+ * other link content types than text/html. Some of them may be created with
+ * AtomCreator03::additionalElements.
+ *
+ * @see FeedCreator#additionalElements
+ * @since 1.6
+ * @author Kai Blankenhorn <kaib@bitfolge.de>, Scott Reynen <scott@randomchaos.com>
+ */
+class AtomCreator03 extends FeedCreator {
+
+ function AtomCreator03() {
+ $this->contentType = "application/atom+xml";
+ $this->encoding = "utf-8";
+ }
+
+ function createFeed() {
+ $feed = "<?xml version=\"1.0\" encoding=\"".$this->encoding."\"?>\n";
+ $feed.= $this->_createGeneratorComment();
+ $feed.= $this->_createStylesheetReferences();
+ $feed.= "<feed version=\"0.3\" xmlns=\"http://purl.org/atom/ns#\"";
+ if ($this->language!="") {
+ $feed.= " xml:lang=\"".$this->language."\"";
+ }
+ $feed.= ">\n";
+ $feed.= " <title>".htmlspecialchars($this->title)."</title>\n";
+ $feed.= " <tagline>".htmlspecialchars($this->description)."</tagline>\n";
+ $feed.= " <link rel=\"alternate\" type=\"text/html\" href=\"".htmlspecialchars($this->link)."\"/>\n";
+ $feed.= " <id>".htmlspecialchars($this->link)."</id>\n";
+ $now = new FeedDate();
+ $feed.= " <modified>".htmlspecialchars($now->iso8601())."</modified>\n";
+ if ($this->editor!="") {
+ $feed.= " <author>\n";
+ $feed.= " <name>".$this->editor."</name>\n";
+ if ($this->editorEmail!="") {
+ $feed.= " <email>".$this->editorEmail."</email>\n";
+ }
+ $feed.= " </author>\n";
+ }
+ $feed.= " <generator>".FEEDCREATOR_VERSION."</generator>\n";
+ $feed.= $this->_createAdditionalElements($this->additionalElements, " ");
+ for ($i=0;$i<count($this->items);$i++) {
+ $feed.= " <entry>\n";
+ $feed.= " <title>".htmlspecialchars(strip_tags($this->items[$i]->title))."</title>\n";
+ $feed.= " <link rel=\"alternate\" type=\"text/html\" href=\"".htmlspecialchars($this->items[$i]->link)."\"/>\n";
+ if ($this->items[$i]->date=="") {
+ $this->items[$i]->date = time();
+ }
+ $itemDate = new FeedDate($this->items[$i]->date);
+ $feed.= " <created>".htmlspecialchars($itemDate->iso8601())."</created>\n";
+ $feed.= " <issued>".htmlspecialchars($itemDate->iso8601())."</issued>\n";
+ $feed.= " <modified>".htmlspecialchars($itemDate->iso8601())."</modified>\n";
+ $feed.= " <id>".htmlspecialchars($this->items[$i]->link)."</id>\n";
+ $feed.= $this->_createAdditionalElements($this->items[$i]->additionalElements, " ");
+ if ($this->items[$i]->author!="") {
+ $feed.= " <author>\n";
+ $feed.= " <name>".htmlspecialchars($this->items[$i]->author)."</name>\n";
+ $feed.= " </author>\n";
+ }
+ if ($this->items[$i]->description!="") {
+ $feed.= " <summary>".htmlspecialchars($this->items[$i]->description)."</summary>\n";
+ }
+ $feed.= " </entry>\n";
+ }
+ $feed.= "</feed>\n";
+ return $feed;
+ }
+}
+
+
+/**
+ * MBOXCreator is a FeedCreator that implements the mbox format
+ * as described in http://www.qmail.org/man/man5/mbox.html
+ *
+ * @since 1.3
+ * @author Kai Blankenhorn <kaib@bitfolge.de>
+ */
+class MBOXCreator extends FeedCreator {
+
+ function MBOXCreator() {
+ $this->contentType = "text/plain";
+ $this->encoding = "ISO-8859-15";
+ }
+
+ function qp_enc($input = "", $line_max = 76) {
+ $hex = array('0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F');
+ $lines = preg_split("/(?:\r\n|\r|\n)/", $input);
+ $eol = "\r\n";
+ $escape = "=";
+ $output = "";
+ while( list(, $line) = each($lines) ) {
+ //$line = rtrim($line); // remove trailing white space -> no =20\r\n necessary
+ $linlen = strlen($line);
+ $newline = "";
+ for($i = 0; $i < $linlen; $i++) {
+ $c = substr($line, $i, 1);
+ $dec = ord($c);
+ if ( ($dec == 32) && ($i == ($linlen - 1)) ) { // convert space at eol only
+ $c = "=20";
+ } elseif ( ($dec == 61) || ($dec < 32 ) || ($dec > 126) ) { // always encode "\t", which is *not* required
+ $h2 = floor($dec/16); $h1 = floor($dec%16);
+ $c = $escape.$hex["$h2"].$hex["$h1"];
+ }
+ if ( (strlen($newline) + strlen($c)) >= $line_max ) { // CRLF is not counted
+ $output .= $newline.$escape.$eol; // soft line break; " =\r\n" is okay
+ $newline = "";
+ }
+ $newline .= $c;
+ } // end of for
+ $output .= $newline.$eol;
+ }
+ return trim($output);
+ }
+
+
+ /**
+ * Builds the MBOX contents.
+ * @return string the feed's complete text
+ */
+ function createFeed() {
+ for ($i=0;$i<count($this->items);$i++) {
+ if ($this->items[$i]->author!="") {
+ $from = $this->items[$i]->author;
+ } else {
+ $from = $this->title;
+ }
+ $itemDate = new FeedDate($this->items[$i]->date);
+ $feed.= "From ".strtr(MBOXCreator::qp_enc($from)," ","_")." ".date("D M d H:i:s Y",$itemDate->unix())."\n";
+ $feed.= "Content-Type: text/plain;\n";
+ $feed.= " charset=\"".$this->encoding."\"\n";
+ $feed.= "Content-Transfer-Encoding: quoted-printable\n";
+ $feed.= "Content-Type: text/plain\n";
+ $feed.= "From: \"".MBOXCreator::qp_enc($from)."\"\n";
+ $feed.= "Date: ".$itemDate->rfc822()."\n";
+ $feed.= "Subject: ".MBOXCreator::qp_enc(FeedCreator::iTrunc($this->items[$i]->title,100))."\n";
+ $feed.= "\n";
+ $body = chunk_split(MBOXCreator::qp_enc($this->items[$i]->description));
+ $feed.= preg_replace("~\nFrom ([^\n]*)(\n?)~","\n>From $1$2\n",$body);
+ $feed.= "\n";
+ $feed.= "\n";
+ }
+ return $feed;
+ }
+
+ /**
+ * Generate a filename for the feed cache file. Overridden from FeedCreator to prevent XML data types.
+ * @return string the feed cache filename
+ * @since 1.4
+ * @access private
+ */
+ function _generateFilename() {
+ $fileInfo = pathinfo($_SERVER["PHP_SELF"]);
+ return substr($fileInfo["basename"],0,-(strlen($fileInfo["extension"])+1)).".mbox";
+ }
+}
+
+
+/**
+ * OPMLCreator is a FeedCreator that implements OPML 1.0.
+ *
+ * @see http://opml.scripting.com/spec
+ * @author Dirk Clemens, Kai Blankenhorn
+ * @since 1.5
+ */
+class OPMLCreator extends FeedCreator {
+
+ function OPMLCreator() {
+ $this->encoding = "utf-8";
+ }
+
+ function createFeed() {
+ $feed = "<?xml version=\"1.0\" encoding=\"".$this->encoding."\"?>\n";
+ $feed.= $this->_createGeneratorComment();
+ $feed.= $this->_createStylesheetReferences();
+ $feed.= "<opml xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">\n";
+ $feed.= " <head>\n";
+ $feed.= " <title>".htmlspecialchars($this->title)."</title>\n";
+ if ($this->pubDate!="") {
+ $date = new FeedDate($this->pubDate);
+ $feed.= " <dateCreated>".$date->rfc822()."</dateCreated>\n";
+ }
+ if ($this->lastBuildDate!="") {
+ $date = new FeedDate($this->lastBuildDate);
+ $feed.= " <dateModified>".$date->rfc822()."</dateModified>\n";
+ }
+ if ($this->editor!="") {
+ $feed.= " <ownerName>".$this->editor."</ownerName>\n";
+ }
+ if ($this->editorEmail!="") {
+ $feed.= " <ownerEmail>".$this->editorEmail."</ownerEmail>\n";
+ }
+ $feed.= " </head>\n";
+ $feed.= " <body>\n";
+ for ($i=0;$i<count($this->items);$i++) {
+ $feed.= " <outline type=\"rss\" ";
+ $title = htmlspecialchars(strip_tags(strtr($this->items[$i]->title,"\n\r"," ")));
+ $feed.= " title=\"".$title."\"";
+ $feed.= " text=\"".$title."\"";
+ //$feed.= " description=\"".htmlspecialchars($this->items[$i]->description)."\"";
+ $feed.= " url=\"".htmlspecialchars($this->items[$i]->link)."\"";
+ $feed.= "/>\n";
+ }
+ $feed.= " </body>\n";
+ $feed.= "</opml>\n";
+ return $feed;
+ }
+}
+
+
+
+/**
+ * HTMLCreator is a FeedCreator that writes an HTML feed file to a specific
+ * location, overriding the createFeed method of the parent FeedCreator.
+ * The HTML produced can be included over http by scripting languages, or serve
+ * as the source for an IFrame.
+ * All output by this class is embedded in <div></div> tags to enable formatting
+ * using CSS.
+ *
+ * @author Pascal Van Hecke
+ * @since 1.7
+ */
+class HTMLCreator extends FeedCreator {
+
+ var $contentType = "text/html";
+
+ /**
+ * Contains HTML to be output at the start of the feed's html representation.
+ */
+ var $header;
+
+ /**
+ * Contains HTML to be output at the end of the feed's html representation.
+ */
+ var $footer ;
+
+ /**
+ * Contains HTML to be output between entries. A separator is only used in
+ * case of multiple entries.
+ */
+ var $separator;
+
+ /**
+ * Used to prefix the stylenames to make sure they are unique
+ * and do not clash with stylenames on the users' page.
+ */
+ var $stylePrefix;
+
+ /**
+ * Determines whether the links open in a new window or not.
+ */
+ var $openInNewWindow = true;
+
+ var $imageAlign ="right";
+
+ /**
+ * In case of very simple output you may want to get rid of the style tags,
+ * hence this variable. There's no equivalent on item level, but of course you can
+ * add strings to it while iterating over the items ($this->stylelessOutput .= ...)
+ * and when it is non-empty, ONLY the styleless output is printed, the rest is ignored
+ * in the function createFeed().
+ */
+ var $stylelessOutput ="";
+
+ /**
+ * Writes the HTML.
+ * @return string the scripts's complete text
+ */
+ function createFeed() {
+ // if there is styleless output, use the content of this variable and ignore the rest
+ if ($this->stylelessOutput!="") {
+ return $this->stylelessOutput;
+ }
+
+ //if no stylePrefix is set, generate it yourself depending on the script name
+ if ($this->stylePrefix=="") {
+ $this->stylePrefix = str_replace(".", "_", $this->_generateFilename())."_";
+ }
+
+ //set an openInNewWindow_token_to be inserted or not
+ if ($this->openInNewWindow) {
+ $targetInsert = " target='_blank'";
+ }
+
+ // use this array to put the lines in and implode later with "document.write" javascript
+ $feedArray = array();
+ if ($this->image!=null) {
+ $imageStr = "<a href='".$this->image->link."'".$targetInsert.">".
+ "<img src='".$this->image->url."' border='0' alt='".
+ FeedCreator::iTrunc(htmlspecialchars($this->image->title),100).
+ "' align='".$this->imageAlign."' ";
+ if ($this->image->width) {
+ $imageStr .=" width='".$this->image->width. "' ";
+ }
+ if ($this->image->height) {
+ $imageStr .=" height='".$this->image->height."' ";
+ }
+ $imageStr .="/></a>";
+ $feedArray[] = $imageStr;
+ }
+
+ if ($this->title) {
+ $feedArray[] = "<div class='".$this->stylePrefix."title'><a href='".$this->link."' ".$targetInsert." class='".$this->stylePrefix."title'>".
+ FeedCreator::iTrunc(htmlspecialchars($this->title),100)."</a></div>";
+ }
+ if ($this->getDescription()) {
+ $feedArray[] = "<div class='".$this->stylePrefix."description'>".
+ str_replace("]]>", "", str_replace("<![CDATA[", "", $this->getDescription())).
+ "</div>";
+ }
+
+ if ($this->header) {
+ $feedArray[] = "<div class='".$this->stylePrefix."header'>".$this->header."</div>";
+ }
+
+ for ($i=0;$i<count($this->items);$i++) {
+ if ($this->separator and $i > 0) {
+ $feedArray[] = "<div class='".$this->stylePrefix."separator'>".$this->separator."</div>";
+ }
+
+ if ($this->items[$i]->title) {
+ if ($this->items[$i]->link) {
+ $feedArray[] =
+ "<div class='".$this->stylePrefix."item_title'><a href='".$this->items[$i]->link."' class='".$this->stylePrefix.
+ "item_title'".$targetInsert.">".FeedCreator::iTrunc(htmlspecialchars(strip_tags($this->items[$i]->title)),100).
+ "</a></div>";
+ } else {
+ $feedArray[] =
+ "<div class='".$this->stylePrefix."item_title'>".
+ FeedCreator::iTrunc(htmlspecialchars(strip_tags($this->items[$i]->title)),100).
+ "</div>";
+ }
+ }
+ if ($this->items[$i]->getDescription()) {
+ $feedArray[] =
+ "<div class='".$this->stylePrefix."item_description'>".
+ str_replace("]]>", "", str_replace("<![CDATA[", "", $this->items[$i]->getDescription())).
+ "</div>";
+ }
+ }
+ if ($this->footer) {
+ $feedArray[] = "<div class='".$this->stylePrefix."footer'>".$this->footer."</div>";
+ }
+
+ $feed= "".join($feedArray, "\r\n");
+ return $feed;
+ }
+
+ /**
+ * Overrrides parent to produce .html extensions
+ *
+ * @return string the feed cache filename
+ * @since 1.4
+ * @access private
+ */
+ function _generateFilename() {
+ $fileInfo = pathinfo($_SERVER["PHP_SELF"]);
+ return substr($fileInfo["basename"],0,-(strlen($fileInfo["extension"])+1)).".html";
+ }
+}
+
+
+/**
+ * JSCreator is a class that writes a js file to a specific
+ * location, overriding the createFeed method of the parent HTMLCreator.
+ *
+ * @author Pascal Van Hecke
+ */
+class JSCreator extends HTMLCreator {
+ var $contentType = "text/javascript";
+
+ /**
+ * writes the javascript
+ * @return string the scripts's complete text
+ */
+ function createFeed()
+ {
+ $feed = parent::createFeed();
+ $feedArray = explode("\n",$feed);
+
+ $jsFeed = "";
+ foreach ($feedArray as $value) {
+ $jsFeed .= "document.write('".trim(addslashes($value))."');\n";
+ }
+ return $jsFeed;
+ }
+
+ /**
+ * Overrrides parent to produce .js extensions
+ *
+ * @return string the feed cache filename
+ * @since 1.4
+ * @access private
+ */
+ function _generateFilename() {
+ $fileInfo = pathinfo($_SERVER["PHP_SELF"]);
+ return substr($fileInfo["basename"],0,-(strlen($fileInfo["extension"])+1)).".js";
+ }
+
+}
+
+
+
+/*** TEST SCRIPT *********************************************************
+
+//include("feedcreator.class.php");
+
+$rss = new UniversalFeedCreator();
+$rss->useCached();
+$rss->title = "PHP news";
+$rss->description = "daily news from the PHP scripting world";
+
+//optional
+//$rss->descriptionTruncSize = 500;
+//$rss->descriptionHtmlSyndicated = true;
+//$rss->xslStyleSheet = "http://feedster.com/rss20.xsl";
+
+$rss->link = "http://www.dailyphp.net/news";
+$rss->feedURL = "http://www.dailyphp.net/".$PHP_SELF;
+
+$image = new FeedImage();
+$image->title = "dailyphp.net logo";
+$image->url = "http://www.dailyphp.net/images/logo.gif";
+$image->link = "http://www.dailyphp.net";
+$image->description = "Feed provided by dailyphp.net. Click to visit.";
+
+//optional
+$image->descriptionTruncSize = 500;
+$image->descriptionHtmlSyndicated = true;
+
+$rss->image = $image;
+
+// get your news items from somewhere, e.g. your database:
+//mysql_select_db($dbHost, $dbUser, $dbPass);
+//$res = mysql_query("SELECT * FROM news ORDER BY newsdate DESC");
+//while ($data = mysql_fetch_object($res)) {
+ $item = new FeedItem();
+ $item->title = "This is an the test title of an item";
+ $item->link = "http://localhost/item/";
+ $item->description = "<b>description in </b><br/>HTML";
+
+ //optional
+ //item->descriptionTruncSize = 500;
+ $item->descriptionHtmlSyndicated = true;
+
+ $item->date = time();
+ $item->source = "http://www.dailyphp.net";
+ $item->author = "John Doe";
+
+ $rss->addItem($item);
+//}
+
+// valid format strings are: RSS0.91, RSS1.0, RSS2.0, PIE0.1, MBOX, OPML, ATOM0.3, HTML, JS
+echo $rss->saveFeed("RSS0.91", "feed.xml");
+
+
+
+***************************************************************************/
+
+?>
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-12-01 10:19:02 +0100