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diff --git a/include/feedcreator.class.php b/include/feedcreator.class.php new file mode 100644 index 000000000..da4825b18 --- /dev/null +++ b/include/feedcreator.class.php @@ -0,0 +1,1541 @@ +<?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() { + $xml = ""; + if (isset($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 /><b>Error creating feed file, please check write permissions.</b><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."\">\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"; + $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"); + + + +***************************************************************************/ + +?> |