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<?php |
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/** |
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* A FeedItem is a part of a FeedCreator feed. |
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* |
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* @author Kai Blankenhorn <[email protected]> |
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* @since 1.3 |
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*/ |
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class FeedItem extends HtmlDescribable |
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{ |
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/** |
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* Mandatory attributes of an item. |
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*/ |
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var $title, $description, $link; |
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/** |
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* Optional attributes of an item. |
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*/ |
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var $author, $authorEmail, $image, $category, $comments, $guid, $source, $creator; |
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/** |
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* Publishing date of an item. May be in one of the following formats: |
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* |
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* RFC 822: |
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* "Mon, 20 Jan 03 18:05:41 +0400" |
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* "20 Jan 03 18:05:41 +0000" |
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* |
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* ISO 8601: |
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* "2003-01-20T18:05:41+04:00" |
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* |
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* Unix: |
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* 1043082341 |
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*/ |
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var $date; |
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/** |
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* Add <enclosure> element tag RSS 2.0 |
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* modified by : Mohammad Hafiz bin Ismail ([email protected]) |
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* |
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* display : |
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* <enclosure length="17691" url="http://something.com/picture.jpg" type="image/jpeg" /> |
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*/ |
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var $enclosure; |
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/** |
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* Any additional elements to include as an assiciated array. All $key => $value pairs |
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* will be included unencoded in the feed item in the form |
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* <$key>$value</$key> |
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* Again: No encoding will be used! This means you can invalidate or enhance the feed |
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* if $value contains markup. This may be abused to embed tags not implemented by |
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* the FeedCreator class used. |
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*/ |
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var $additionalElements = Array(); |
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// on hold |
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// var $source; |
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} |
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class EnclosureItem extends HtmlDescribable |
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{ |
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/* |
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* |
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* core variables |
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* |
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**/ |
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var $url,$length,$type; |
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/* |
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* For use with another extension like Yahoo mRSS |
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* Warning : |
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* These variables might not show up in |
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* later release / not finalize yet! |
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* |
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*/ |
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var $width, $height, $title, $description, $keywords, $thumburl; |
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var $additionalElements = Array(); |
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} |
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/** |
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* An FeedImage may be added to a FeedCreator feed. |
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* |
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* @author Kai Blankenhorn <[email protected]> |
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* @since 1.3 |
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*/ |
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class FeedImage extends HtmlDescribable |
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{ |
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/** |
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* Mandatory attributes of an image. |
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*/ |
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var $title, $url, $link; |
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/** |
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* Optional attributes of an image. |
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*/ |
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var $width, $height, $description; |
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} |
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/** |
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* An HtmlDescribable is an item within a feed that can have a description that may |
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* include HTML markup. |
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*/ |
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class HtmlDescribable |
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{ |
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/** |
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* Indicates whether the description field should be rendered in HTML. |
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*/ |
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var $descriptionHtmlSyndicated; |
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/** |
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* Indicates whether and to how many characters a description should be truncated. |
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*/ |
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var $descriptionTruncSize; |
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/** |
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* Returns a formatted description field, depending on descriptionHtmlSyndicated and |
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* $descriptionTruncSize properties |
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* |
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* @return string the formatted description |
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*/ |
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function getDescription() |
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{ |
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$descriptionField = new FeedHtmlField($this->description); |
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$descriptionField->syndicateHtml = $this->descriptionHtmlSyndicated; |
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$descriptionField->truncSize = $this->descriptionTruncSize; |
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return $descriptionField->output(); |
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} |
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} |
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/** |
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* An FeedHtmlField describes and generates |
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* a feed, item or image html field (probably a description). Output is |
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* generated based on $truncSize, $syndicateHtml properties. |
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* |
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* @author Pascal Van Hecke <[email protected]> |
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* @version 1.6 |
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*/ |
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class FeedHtmlField |
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{ |
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/** |
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* Mandatory attributes of a FeedHtmlField. |
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*/ |
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var $rawFieldContent; |
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/** |
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* Optional attributes of a FeedHtmlField. |
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*/ |
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var $truncSize, $syndicateHtml; |
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/** |
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* Creates a new instance of FeedHtmlField. |
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* |
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* @param $string: if given, sets the rawFieldContent property |
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*/ |
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function FeedHtmlField($parFieldContent) |
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{ |
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if ($parFieldContent) { |
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$this->rawFieldContent = $parFieldContent; |
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} |
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} |
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/** |
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* Creates the right output, depending on $truncSize, $syndicateHtml properties. |
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* |
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* @return string the formatted field |
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*/ |
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function output() |
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{ |
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// when field available and syndicated in html we assume |
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// - valid html in $rawFieldContent and we enclose in CDATA tags |
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// - no truncation (truncating risks producing invalid html) |
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if (!$this->rawFieldContent) { |
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$result = ""; |
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} elseif ($this->syndicateHtml) { |
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$result = "<![CDATA[".$this->rawFieldContent."]]>"; |
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} else { |
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if ($this->truncSize and is_int($this->truncSize)) { |
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$result = FeedCreator::iTrunc(htmlspecialchars($this->rawFieldContent), $this->truncSize); |
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} else { |
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$result = htmlspecialchars($this->rawFieldContent); |
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} |
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} |
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return $result; |
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} |
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} |
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/** |
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* UniversalFeedCreator lets you choose during runtime which |
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* format to build. |
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* For general usage of a feed class, see the FeedCreator class |
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* below or the example above. |
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* |
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* @since 1.3 |
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* @author Kai Blankenhorn <[email protected]> |
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*/ |
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class UniversalFeedCreator extends FeedCreator |
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{ |
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var $_feed; |
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function _setMIME($format) |
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{ |
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switch (strtoupper($format)) { |
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case "RSS": |
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case "2.0": |
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// fall through |
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case "RSS2.0": |
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header('Content-type: text/xml', true); |
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break; |
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case "ATOM": |
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// fall through: always the latest ATOM version |
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case "ATOM1.0": |
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header('Content-type: application/xml', true); |
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break; |
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default: |
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case "0.91": |
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// fall through |
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case "RSS0.91": |
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header('Content-type: text/xml', true); |
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break; |
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} |
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} |
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function _setFormat($format) |
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{ |
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switch (strtoupper($format)) { |
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case "RSS": |
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case "2.0": |
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// fall through |
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case "RSS2.0": |
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$this->_feed = new RSSCreator20(); |
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break; |
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case "0.91": |
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// fall through |
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case "RSS0.91": |
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$this->_feed = new RSSCreator091(); |
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break; |
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case "ATOM": |
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// fall through: always the latest ATOM version |
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case "ATOM1.0": |
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$this->_feed = new AtomCreator10(); |
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break; |
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default: |
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$this->_feed = new RSSCreator091(); |
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break; |
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} |
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$vars = get_object_vars($this); |
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foreach ($vars as $key => $value) { |
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// prevent overwriting of properties "contentType", "encoding"; do not copy "_feed" itself |
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if (!in_array($key, array("_feed", "contentType", "encoding"))) { |
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$this->_feed->{$key} = $this->{$key}; |
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} |
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} |
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} |
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/** |
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* Creates a syndication feed based on the items previously added. |
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* |
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* @see FeedCreator::addItem() |
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* @param string format format the feed should comply to. Valid values are: |
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* "PIE0.1", "mbox", "RSS0.91", "RSS1.0", "RSS2.0", "OPML", "ATOM0.3", "HTML", "JS" |
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* @return string the contents of the feed. |
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*/ |
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function createFeed($format = "RSS0.91") |
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{ |
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$this->_setFormat($format); |
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return $this->_feed->createFeed(); |
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} |
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288
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289
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/** |
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290
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* Outputs feed to the browser - needed for on-the-fly feed generation (like it is done in WordPress, etc.) |
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* |
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* @param format string format the feed should comply to. Valid values are: |
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* "PIE0.1" (deprecated), "mbox", "RSS0.91", "RSS1.0", "RSS2.0", "OPML", "ATOM0.3". |
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294
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*/ |
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295
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function outputFeed( $timezone , $format='RSS2.0' ) |
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296
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{ |
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297
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$this->_setFormat($format); |
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$this->_setMIME($format); |
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$this->_feed->outputFeed($timezone, $format); |
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} |
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} |
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/** |
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306
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* FeedCreator is the abstract base implementation for concrete |
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* implementations that implement a specific format of syndication. |
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308
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* |
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309
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* @abstract |
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310
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* @author Kai Blankenhorn <[email protected]> |
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311
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* @since 1.4 |
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*/ |
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313
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class FeedCreator extends HtmlDescribable |
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314
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{ |
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316
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/** |
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317
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* Mandatory attributes of a feed. |
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318
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*/ |
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319
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var $title, $description, $link; |
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320
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321
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322
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/** |
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323
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* Optional attributes of a feed. |
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324
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*/ |
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325
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var $syndicationURL, $image, $language, $copyright, $pubDate, $lastBuildDate, $editor, $editorEmail, $webmaster, $category, $docs, $ttl, $rating, $skipHours, $skipDays; |
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326
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327
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/** |
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328
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* The url of the external xsl stylesheet used to format the naked rss feed. |
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329
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* Ignored in the output when empty. |
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330
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*/ |
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331
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var $xslStyleSheet = ""; |
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332
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333
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334
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/** |
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335
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* @access private |
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336
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*/ |
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337
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var $items = Array(); |
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338
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|
339
|
|
|
|
|
340
|
|
|
/** |
|
341
|
|
|
* This feed's MIME content type. |
|
342
|
|
|
* |
|
343
|
|
|
* @since 1.4 |
|
344
|
|
|
* @access private |
|
345
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|
|
*/ |
|
346
|
|
|
var $contentType = "application/xml"; |
|
347
|
|
|
|
|
348
|
|
|
|
|
349
|
|
|
/** |
|
350
|
|
|
* This feed's character encoding. |
|
351
|
|
|
* |
|
352
|
|
|
* @since 1.6.1 |
|
353
|
|
|
**/ |
|
354
|
|
|
var $encoding = "UTF-8"; |
|
355
|
|
|
|
|
356
|
|
|
|
|
357
|
|
|
/** |
|
358
|
|
|
* Any additional elements to include as an assiciated array. All $key => $value pairs |
|
359
|
|
|
* will be included unencoded in the feed in the form |
|
360
|
|
|
* <$key>$value</$key> |
|
361
|
|
|
* Again: No encoding will be used! This means you can invalidate or enhance the feed |
|
362
|
|
|
* if $value contains markup. This may be abused to embed tags not implemented by |
|
363
|
|
|
* the FeedCreator class used. |
|
364
|
|
|
*/ |
|
365
|
|
|
var $additionalElements = Array(); |
|
366
|
|
|
|
|
367
|
|
|
|
|
368
|
|
|
/** |
|
369
|
|
|
* Adds an FeedItem to the feed. |
|
370
|
|
|
* |
|
371
|
|
|
* @param object FeedItem $item The FeedItem to add to the feed. |
|
372
|
|
|
* @access public |
|
373
|
|
|
*/ |
|
374
|
|
|
function addItem($item) |
|
|
|
|
|
|
375
|
|
|
{ |
|
376
|
|
|
$this->items[] = $item; |
|
377
|
|
|
} |
|
378
|
|
|
|
|
379
|
|
|
|
|
380
|
|
|
/** |
|
381
|
|
|
* Truncates a string to a certain length at the most sensible point. |
|
382
|
|
|
* First, if there's a '.' character near the end of the string, the string is truncated after this character. |
|
383
|
|
|
* If there is no '.', the string is truncated after the last ' ' character. |
|
384
|
|
|
* If the string is truncated, " ..." is appended. |
|
385
|
|
|
* If the string is already shorter than $length, it is returned unchanged. |
|
386
|
|
|
* |
|
387
|
|
|
* @static |
|
388
|
|
|
* @param string string A string to be truncated. |
|
389
|
|
|
* @param int length the maximum length the string should be truncated to |
|
390
|
|
|
* @return string the truncated string |
|
391
|
|
|
*/ |
|
392
|
|
|
function iTrunc($string, $length) |
|
|
|
|
|
|
393
|
|
|
{ |
|
394
|
|
|
if (strlen($string)<=$length) { |
|
395
|
|
|
return $string; |
|
396
|
|
|
} |
|
397
|
|
|
|
|
398
|
|
|
$pos = strrpos($string, "."); |
|
399
|
|
View Code Duplication |
if ($pos>=$length-4) { |
|
|
|
|
|
|
400
|
|
|
$string = substr($string, 0, $length-4); |
|
401
|
|
|
$pos = strrpos($string, "."); |
|
402
|
|
|
} |
|
403
|
|
|
if ($pos>=$length*0.4) { |
|
404
|
|
|
return substr($string, 0, $pos+1)." ..."; |
|
405
|
|
|
} |
|
406
|
|
|
|
|
407
|
|
|
$pos = strrpos($string, " "); |
|
408
|
|
View Code Duplication |
if ($pos>=$length-4) { |
|
|
|
|
|
|
409
|
|
|
$string = substr($string, 0, $length-4); |
|
410
|
|
|
$pos = strrpos($string, " "); |
|
411
|
|
|
} |
|
412
|
|
|
if ($pos>=$length*0.4) { |
|
413
|
|
|
return substr($string, 0, $pos)." ..."; |
|
414
|
|
|
} |
|
415
|
|
|
|
|
416
|
|
|
return substr($string, 0, $length-4)." ..."; |
|
417
|
|
|
|
|
418
|
|
|
} |
|
419
|
|
|
|
|
420
|
|
|
|
|
421
|
|
|
/** |
|
422
|
|
|
* Creates a comment indicating the generator of this feed. |
|
423
|
|
|
* The format of this comment seems to be recognized by |
|
424
|
|
|
* Syndic8.com. |
|
425
|
|
|
*/ |
|
426
|
|
|
function _createGeneratorComment() |
|
|
|
|
|
|
427
|
|
|
{ |
|
428
|
|
|
return "<!-- generator=\"".FEEDCREATOR_VERSION."\" -->\n"; |
|
429
|
|
|
} |
|
430
|
|
|
|
|
431
|
|
|
|
|
432
|
|
|
/** |
|
433
|
|
|
* Creates a string containing all additional elements specified in |
|
434
|
|
|
* $additionalElements. |
|
435
|
|
|
* |
|
436
|
|
|
* @param elements array an associative array containing key => value pairs |
|
437
|
|
|
* @param indentString string a string that will be inserted before every generated line |
|
438
|
|
|
* @return string the XML tags corresponding to $additionalElements |
|
439
|
|
|
*/ |
|
440
|
|
|
function _createAdditionalElements($elements, $indentString="") |
|
|
|
|
|
|
441
|
|
|
{ |
|
442
|
|
|
$ae = ""; |
|
443
|
|
|
if (is_array($elements)) { |
|
444
|
|
|
foreach($elements AS $key => $value) { |
|
445
|
|
|
$ae.= $indentString."<$key>$value</$key>\n"; |
|
446
|
|
|
} |
|
447
|
|
|
} |
|
448
|
|
|
return $ae; |
|
449
|
|
|
} |
|
450
|
|
|
|
|
451
|
|
|
function _createStylesheetReferences() |
|
|
|
|
|
|
452
|
|
|
{ |
|
453
|
|
|
$xml = ""; |
|
454
|
|
|
if (isset($this->cssStyleSheet) ) { $xml .= "<?xml-stylesheet href=\"".$this->cssStyleSheet."\" type=\"text/css\"?>\n"; |
|
|
|
|
|
|
455
|
|
|
} |
|
456
|
|
|
if (isset($this->xslStyleSheet) ) { $xml .= "<?xml-stylesheet href=\"".$this->xslStyleSheet."\" type=\"text/xsl\"?>\n"; |
|
457
|
|
|
} |
|
458
|
|
|
return $xml; |
|
459
|
|
|
} |
|
460
|
|
|
|
|
461
|
|
|
|
|
462
|
|
|
/** |
|
463
|
|
|
* Builds the feed's text. |
|
464
|
|
|
* |
|
465
|
|
|
* @abstract |
|
466
|
|
|
* @return string the feed's complete text |
|
467
|
|
|
*/ |
|
468
|
|
|
function createFeed( $timezone ) |
|
|
|
|
|
|
469
|
|
|
{ |
|
470
|
|
|
} |
|
471
|
|
|
|
|
472
|
|
|
/** |
|
473
|
|
|
* Generate a filename for the feed cache file. The result will be $_SERVER["PHP_SELF"] with the extension changed to .xml. |
|
474
|
|
|
* For example: |
|
475
|
|
|
* |
|
476
|
|
|
* echo $_SERVER["PHP_SELF"]."\n"; |
|
477
|
|
|
* echo FeedCreator::_generateFilename(); |
|
478
|
|
|
* |
|
479
|
|
|
* would produce: |
|
480
|
|
|
* |
|
481
|
|
|
* /rss/latestnews.php |
|
482
|
|
|
* latestnews.xml |
|
483
|
|
|
* |
|
484
|
|
|
* @return string the feed cache filename |
|
485
|
|
|
* @since 1.4 |
|
486
|
|
|
* @access private |
|
487
|
|
|
*/ |
|
488
|
|
|
function _generateFilename() |
|
|
|
|
|
|
489
|
|
|
{ |
|
490
|
|
|
$fileInfo = pathinfo($_SERVER["PHP_SELF"]); |
|
491
|
|
|
return substr($fileInfo["basename"], 0, -(strlen($fileInfo["extension"])+1)).".xml"; |
|
492
|
|
|
} |
|
493
|
|
|
|
|
494
|
|
|
|
|
495
|
|
|
/** |
|
496
|
|
|
* @since 1.4 |
|
497
|
|
|
* @access private |
|
498
|
|
|
*/ |
|
499
|
|
|
function _redirect($filename) |
|
|
|
|
|
|
500
|
|
|
{ |
|
501
|
|
|
// attention, heavily-commented-out-area |
|
502
|
|
|
|
|
503
|
|
|
// maybe use this in addition to file time checking |
|
504
|
|
|
//Header("Expires: ".date("r",time()+$this->_timeout)); |
|
505
|
|
|
|
|
506
|
|
|
/* no caching at all, doesn't seem to work as good: |
|
507
|
|
|
Header("Cache-Control: no-cache"); |
|
508
|
|
|
Header("Pragma: no-cache"); |
|
509
|
|
|
*/ |
|
510
|
|
|
|
|
511
|
|
|
// HTTP redirect, some feed readers' simple HTTP implementations don't follow it |
|
512
|
|
|
//Header("Location: ".$filename); |
|
513
|
|
|
|
|
514
|
|
|
Header("Content-Type: ".$this->contentType."; charset=".$this->encoding."; filename=".basename($filename)); |
|
515
|
|
|
Header("Content-Disposition: inline; filename=".basename($filename)); |
|
516
|
|
|
readfile($filename, "r"); |
|
517
|
|
|
die(); |
|
518
|
|
|
} |
|
519
|
|
|
|
|
520
|
|
|
/** |
|
521
|
|
|
* Outputs this feed directly to the browser - for on-the-fly feed generation |
|
522
|
|
|
* |
|
523
|
|
|
* @since 1.7.2-mod |
|
524
|
|
|
* |
|
525
|
|
|
* still missing: proper header output - currently you have to add it manually |
|
526
|
|
|
*/ |
|
527
|
|
|
function outputFeed( $timezone , $format='RSS2.0' ) |
|
|
|
|
|
|
528
|
|
|
{ |
|
529
|
|
|
echo $this->createFeed($timezone); |
|
530
|
|
|
} |
|
531
|
|
|
|
|
532
|
|
|
} |
|
533
|
|
|
|
|
534
|
|
|
|
|
535
|
|
|
/** |
|
536
|
|
|
* FeedDate is an internal class that stores a date for a feed or feed item. |
|
537
|
|
|
* Usually, you won't need to use this. |
|
538
|
|
|
*/ |
|
539
|
|
|
class FeedDate |
|
540
|
|
|
{ |
|
541
|
|
|
var $unix; |
|
542
|
|
|
|
|
543
|
|
|
/** |
|
544
|
|
|
* Creates a new instance of FeedDate representing a given date. |
|
545
|
|
|
* Accepts RFC 822, ISO 8601 date formats as well as unix time stamps. |
|
546
|
|
|
* |
|
547
|
|
|
* @param mixed $dateString optional the date this FeedDate will represent. If not specified, the current date and time is used. |
|
548
|
|
|
*/ |
|
549
|
|
|
function FeedDate($dateString="") |
|
|
|
|
|
|
550
|
|
|
{ |
|
551
|
|
|
if ($dateString=="") { $dateString = date("r"); |
|
552
|
|
|
} |
|
553
|
|
|
|
|
554
|
|
|
if (is_numeric($dateString)) { |
|
555
|
|
|
$this->unix = $dateString; |
|
556
|
|
|
return; |
|
557
|
|
|
} |
|
558
|
|
|
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)) { |
|
559
|
|
|
$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); |
|
560
|
|
|
$this->unix = mktime($matches[4], $matches[5], $matches[6], $months[$matches[2]], $matches[1], $matches[3]); |
|
561
|
|
|
if (substr($matches[7], 0, 1)=='+' OR substr($matches[7], 0, 1)=='-') { |
|
562
|
|
|
$tzOffset = (substr($matches[7], 0, 3) * 60 + substr($matches[7], -2)) * 60; |
|
563
|
|
|
} else { |
|
564
|
|
|
if (strlen($matches[7])==1) { |
|
565
|
|
|
$oneHour = 3600; |
|
566
|
|
|
$ord = ord($matches[7]); |
|
567
|
|
|
if ($ord < ord("M")) { |
|
568
|
|
|
$tzOffset = (ord("A") - $ord - 1) * $oneHour; |
|
569
|
|
|
} elseif ($ord >= ord("M") AND $matches[7]!="Z") { |
|
570
|
|
|
$tzOffset = ($ord - ord("M")) * $oneHour; |
|
571
|
|
|
} elseif ($matches[7]=="Z") { |
|
572
|
|
|
$tzOffset = 0; |
|
573
|
|
|
} |
|
574
|
|
|
} |
|
575
|
|
|
switch ($matches[7]) { |
|
576
|
|
|
case "UT": |
|
577
|
|
|
case "GMT": $tzOffset = 0; |
|
578
|
|
|
} |
|
579
|
|
|
} |
|
580
|
|
|
$this->unix += $tzOffset; |
|
|
|
|
|
|
581
|
|
|
return; |
|
582
|
|
|
} |
|
583
|
|
|
if (preg_match("~(\\d{4})-(\\d{2})-(\\d{2})T(\\d{2}):(\\d{2}):(\\d{2})(.*)~", $dateString, $matches)) { |
|
584
|
|
|
$this->unix = mktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]); |
|
585
|
|
|
if (substr($matches[7], 0, 1)=='+' OR substr($matches[7], 0, 1)=='-') { |
|
586
|
|
|
$tzOffset = (substr($matches[7], 0, 3) * 60 + substr($matches[7], -2)) * 60; |
|
587
|
|
|
} else { |
|
588
|
|
|
if ($matches[7]=="Z") { |
|
589
|
|
|
$tzOffset = 0; |
|
590
|
|
|
} |
|
591
|
|
|
} |
|
592
|
|
|
$this->unix += $tzOffset; |
|
593
|
|
|
return; |
|
594
|
|
|
} |
|
595
|
|
|
$this->unix = 0; |
|
596
|
|
|
} |
|
597
|
|
|
|
|
598
|
|
|
|
|
599
|
|
|
|
|
600
|
|
|
|
|
601
|
|
|
|
|
602
|
|
|
/** |
|
603
|
|
|
* Gets the date stored in this FeedDate as an RFC 822 date. |
|
604
|
|
|
* |
|
605
|
|
|
* @return a date in RFC 822 format |
|
606
|
|
|
*/ |
|
607
|
|
|
function rfc822() |
|
|
|
|
|
|
608
|
|
|
{ |
|
609
|
|
|
$d = new DateTime("@" . $this->unix); |
|
610
|
|
|
|
|
611
|
|
|
return $d->format('r'); |
|
612
|
|
|
} |
|
613
|
|
|
|
|
614
|
|
|
/** |
|
615
|
|
|
* Gets the date stored in this FeedDate as an ISO 8601 date. |
|
616
|
|
|
* |
|
617
|
|
|
* @return a date in ISO 8601 (RFC 3339) format |
|
618
|
|
|
*/ |
|
619
|
|
|
function iso8601() |
|
|
|
|
|
|
620
|
|
|
{ |
|
621
|
|
|
$d = new DateTime("@" . $this->unix); |
|
622
|
|
|
|
|
623
|
|
|
return $d->format('c'); |
|
624
|
|
|
} |
|
625
|
|
|
|
|
626
|
|
|
|
|
627
|
|
|
/** |
|
628
|
|
|
* Gets the date stored in this FeedDate as unix time stamp. |
|
629
|
|
|
* |
|
630
|
|
|
* @return a date as a unix time stamp |
|
631
|
|
|
*/ |
|
632
|
|
|
function unix() |
|
|
|
|
|
|
633
|
|
|
{ |
|
634
|
|
|
return $this->unix; |
|
635
|
|
|
} |
|
636
|
|
|
} |
|
637
|
|
|
|
|
638
|
|
|
|
|
639
|
|
|
|
|
640
|
|
|
|
|
641
|
|
|
/** |
|
642
|
|
|
* RSSCreator091 is a FeedCreator that implements RSS 0.91 Spec, revision 3. |
|
643
|
|
|
* |
|
644
|
|
|
* @see http://my.netscape.com/publish/formats/rss-spec-0.91.html |
|
645
|
|
|
* @since 1.3 |
|
646
|
|
|
* @author Kai Blankenhorn <[email protected]> |
|
647
|
|
|
*/ |
|
648
|
|
|
class RSSCreator091 extends FeedCreator |
|
649
|
|
|
{ |
|
650
|
|
|
|
|
651
|
|
|
/** |
|
652
|
|
|
* Stores this RSS feed's version number. |
|
653
|
|
|
* |
|
654
|
|
|
* @access private |
|
655
|
|
|
*/ |
|
656
|
|
|
var $RSSVersion; |
|
657
|
|
|
|
|
658
|
|
|
function RSSCreator091() |
|
|
|
|
|
|
659
|
|
|
{ |
|
660
|
|
|
$this->_setRSSVersion("0.91"); |
|
661
|
|
|
$this->contentType = "application/rss+xml"; |
|
662
|
|
|
} |
|
663
|
|
|
|
|
664
|
|
|
/** |
|
665
|
|
|
* Sets this RSS feed's version number. |
|
666
|
|
|
* |
|
667
|
|
|
* @access private |
|
668
|
|
|
*/ |
|
669
|
|
|
function _setRSSVersion($version) |
|
|
|
|
|
|
670
|
|
|
{ |
|
671
|
|
|
$this->RSSVersion = $version; |
|
672
|
|
|
} |
|
673
|
|
|
|
|
674
|
|
|
/** |
|
675
|
|
|
* Builds the RSS feed's text. The feed will be compliant to RDF Site Summary (RSS) 1.0. |
|
676
|
|
|
* The feed will contain all items previously added in the same order. |
|
677
|
|
|
* |
|
678
|
|
|
* @return string the feed's complete text |
|
679
|
|
|
*/ |
|
680
|
|
|
function createFeed( $timezone ) |
|
|
|
|
|
|
681
|
|
|
{ |
|
682
|
|
|
$feed = "<?xml version=\"1.0\" encoding=\"".$this->encoding."\"?>\n"; |
|
683
|
|
|
$feed.= $this->_createGeneratorComment(); |
|
684
|
|
|
$feed.= $this->_createStylesheetReferences(); |
|
685
|
|
|
$feed.= "<rss version=\"".$this->RSSVersion."\">\n"; |
|
686
|
|
|
$feed.= " <channel>\n"; |
|
687
|
|
|
$feed.= " <title>".FeedCreator::iTrunc(htmlspecialchars($this->title), 100)."</title>\n"; |
|
688
|
|
|
$this->descriptionTruncSize = 500; |
|
689
|
|
|
$feed.= " <description>".$this->getDescription()."</description>\n"; |
|
690
|
|
|
$feed.= " <link>".htmlspecialchars($this->link)."</link>\n"; |
|
691
|
|
|
|
|
692
|
|
|
$now = new DateTime('@' . time()); |
|
693
|
|
|
|
|
694
|
|
|
$feed.= " <lastBuildDate>".htmlspecialchars($now->format('r'))."</lastBuildDate>\n"; |
|
695
|
|
|
$feed.= " <generator>".FEEDCREATOR_VERSION."</generator>\n"; |
|
696
|
|
|
|
|
697
|
|
|
if ($this->image!=null) { |
|
698
|
|
|
$feed.= " <image>\n"; |
|
699
|
|
|
$feed.= " <url>".$this->image->url."</url>\n"; |
|
700
|
|
|
$feed.= " <title>".FeedCreator::iTrunc(htmlspecialchars($this->image->title), 100)."</title>\n"; |
|
701
|
|
|
$feed.= " <link>".htmlspecialchars($this->image->link)."</link>\n"; |
|
702
|
|
|
if ($this->image->width!="") { |
|
703
|
|
|
$feed.= " <width>".$this->image->width."</width>\n"; |
|
704
|
|
|
} |
|
705
|
|
|
if ($this->image->height!="") { |
|
706
|
|
|
$feed.= " <height>".$this->image->height."</height>\n"; |
|
707
|
|
|
} |
|
708
|
|
|
if ($this->image->description!="") { |
|
709
|
|
|
$feed.= " <description>".$this->image->getDescription()."</description>\n"; |
|
710
|
|
|
} |
|
711
|
|
|
$feed.= " </image>\n"; |
|
712
|
|
|
} |
|
713
|
|
|
if ($this->language!="") { |
|
714
|
|
|
$feed.= " <language>".$this->language."</language>\n"; |
|
715
|
|
|
} |
|
716
|
|
|
if ($this->copyright!="") { |
|
717
|
|
|
$feed.= " <copyright>".FeedCreator::iTrunc(htmlspecialchars($this->copyright), 100)."</copyright>\n"; |
|
718
|
|
|
} |
|
719
|
|
|
if ($this->editor!="") { |
|
720
|
|
|
$feed.= " <managingEditor>".FeedCreator::iTrunc(htmlspecialchars($this->editor), 100)."</managingEditor>\n"; |
|
721
|
|
|
} |
|
722
|
|
|
if ($this->webmaster!="") { |
|
723
|
|
|
$feed.= " <webMaster>".FeedCreator::iTrunc(htmlspecialchars($this->webmaster), 100)."</webMaster>\n"; |
|
724
|
|
|
} |
|
725
|
|
|
if ($this->pubDate!="") { |
|
726
|
|
|
$pubDate = new FeedDate($this->pubDate); |
|
727
|
|
|
$feed.= " <pubDate>".htmlspecialchars($pubDate->rfc822())."</pubDate>\n"; |
|
728
|
|
|
} |
|
729
|
|
|
if ($this->category!="") { |
|
730
|
|
|
$feed.= " <category>".htmlspecialchars($this->category)."</category>\n"; |
|
731
|
|
|
} |
|
732
|
|
View Code Duplication |
if ($this->docs!="") { |
|
|
|
|
|
|
733
|
|
|
$feed.= " <docs>".FeedCreator::iTrunc(htmlspecialchars($this->docs), 500)."</docs>\n"; |
|
734
|
|
|
} |
|
735
|
|
|
if ($this->ttl!="") { |
|
736
|
|
|
$feed.= " <ttl>".htmlspecialchars($this->ttl)."</ttl>\n"; |
|
737
|
|
|
} |
|
738
|
|
View Code Duplication |
if ($this->rating!="") { |
|
|
|
|
|
|
739
|
|
|
$feed.= " <rating>".FeedCreator::iTrunc(htmlspecialchars($this->rating), 500)."</rating>\n"; |
|
740
|
|
|
} |
|
741
|
|
|
if ($this->skipHours!="") { |
|
742
|
|
|
$feed.= " <skipHours>".htmlspecialchars($this->skipHours)."</skipHours>\n"; |
|
743
|
|
|
} |
|
744
|
|
|
if ($this->skipDays!="") { |
|
745
|
|
|
$feed.= " <skipDays>".htmlspecialchars($this->skipDays)."</skipDays>\n"; |
|
746
|
|
|
} |
|
747
|
|
|
$feed.= $this->_createAdditionalElements($this->additionalElements, " "); |
|
748
|
|
|
|
|
749
|
|
|
for ($i=0;$i<count($this->items);$i++) { |
|
|
|
|
|
|
750
|
|
|
$feed.= " <item>\n"; |
|
751
|
|
|
$feed.= " <title>".FeedCreator::iTrunc(htmlspecialchars(strip_tags($this->items[$i]->title)), 100)."</title>\n"; |
|
752
|
|
|
$feed.= " <link>".htmlspecialchars($this->items[$i]->link)."</link>\n"; |
|
753
|
|
|
$feed.= " <description>".$this->items[$i]->getDescription()."</description>\n"; |
|
754
|
|
|
|
|
755
|
|
View Code Duplication |
if ($this->items[$i]->author!="") { |
|
|
|
|
|
|
756
|
|
|
$feed.= " <author>".htmlspecialchars($this->items[$i]->author)."</author>\n"; |
|
757
|
|
|
} |
|
758
|
|
|
/* |
|
759
|
|
|
// on hold |
|
760
|
|
|
if ($this->items[$i]->source!="") { |
|
761
|
|
|
$feed.= " <source>".htmlspecialchars($this->items[$i]->source)."</source>\n"; |
|
762
|
|
|
} |
|
763
|
|
|
*/ |
|
764
|
|
View Code Duplication |
if ($this->items[$i]->category!="") { |
|
|
|
|
|
|
765
|
|
|
$feed.= " <category>".htmlspecialchars($this->items[$i]->category)."</category>\n"; |
|
766
|
|
|
} |
|
767
|
|
View Code Duplication |
if ($this->items[$i]->comments!="") { |
|
|
|
|
|
|
768
|
|
|
$feed.= " <comments>".htmlspecialchars($this->items[$i]->comments)."</comments>\n"; |
|
769
|
|
|
} |
|
770
|
|
View Code Duplication |
if ($this->items[$i]->date!="") { |
|
|
|
|
|
|
771
|
|
|
$itemDate = new FeedDate($this->items[$i]->date); |
|
772
|
|
|
$feed.= " <pubDate>".htmlspecialchars($itemDate->rfc822())."</pubDate>\n"; |
|
773
|
|
|
} |
|
774
|
|
View Code Duplication |
if ($this->items[$i]->guid!="") { |
|
|
|
|
|
|
775
|
|
|
$feed.= " <guid>".htmlspecialchars($this->items[$i]->guid)."</guid>\n"; |
|
776
|
|
|
} |
|
777
|
|
|
$feed.= $this->_createAdditionalElements($this->items[$i]->additionalElements, " "); |
|
778
|
|
|
|
|
779
|
|
|
if ($this->RSSVersion == "2.0" && $this->items[$i]->enclosure != null) { |
|
780
|
|
|
$feed.= " <enclosure url=\""; |
|
781
|
|
|
$feed.= $this->items[$i]->enclosure->url; |
|
782
|
|
|
$feed.= "\" length=\""; |
|
783
|
|
|
$feed.= $this->items[$i]->enclosure->length; |
|
784
|
|
|
$feed.= "\" type=\""; |
|
785
|
|
|
$feed.= $this->items[$i]->enclosure->type; |
|
786
|
|
|
$feed.= "\"/>\n"; |
|
787
|
|
|
} |
|
788
|
|
|
|
|
789
|
|
|
|
|
790
|
|
|
|
|
791
|
|
|
$feed.= " </item>\n"; |
|
792
|
|
|
} |
|
793
|
|
|
|
|
794
|
|
|
$feed.= " </channel>\n"; |
|
795
|
|
|
$feed.= "</rss>\n"; |
|
796
|
|
|
return $feed; |
|
797
|
|
|
} |
|
798
|
|
|
} |
|
799
|
|
|
|
|
800
|
|
|
|
|
801
|
|
|
/** |
|
802
|
|
|
* RSSCreator20 is a FeedCreator that implements RDF Site Summary (RSS) 2.0. |
|
803
|
|
|
* |
|
804
|
|
|
* @see http://backend.userland.com/rss |
|
805
|
|
|
* @since 1.3 |
|
806
|
|
|
* @author Kai Blankenhorn <[email protected]> |
|
807
|
|
|
*/ |
|
808
|
|
|
class RSSCreator20 extends RSSCreator091 |
|
809
|
|
|
{ |
|
810
|
|
|
|
|
811
|
|
|
function RSSCreator20() |
|
|
|
|
|
|
812
|
|
|
{ |
|
813
|
|
|
parent::_setRSSVersion("2.0"); |
|
|
|
|
|
|
814
|
|
|
} |
|
815
|
|
|
|
|
816
|
|
|
} |
|
817
|
|
|
|
|
818
|
|
|
|
|
819
|
|
|
/** |
|
820
|
|
|
* AtomCreator10 is a FeedCreator that implements the atom specification, |
|
821
|
|
|
* as in http://www.atomenabled.org/developers/syndication/atom-format-spec.php |
|
822
|
|
|
* Please note that just by using AtomCreator10 you won't automatically |
|
823
|
|
|
* produce valid atom files. For example, you have to specify either an editor |
|
824
|
|
|
* for the feed or an author for every single feed item. |
|
825
|
|
|
* |
|
826
|
|
|
* Some elements have not been implemented yet. These are (incomplete list): |
|
827
|
|
|
* author URL, item author's email and URL, item contents, alternate links, |
|
828
|
|
|
* other link content types than text/html. Some of them may be created with |
|
829
|
|
|
* AtomCreator10::additionalElements. |
|
830
|
|
|
* |
|
831
|
|
|
* @see FeedCreator#additionalElements |
|
832
|
|
|
* @since 1.7.2-mod (modified) |
|
833
|
|
|
* @author Mohammad Hafiz Ismail ([email protected]) |
|
834
|
|
|
*/ |
|
835
|
|
|
class AtomCreator10 extends FeedCreator |
|
836
|
|
|
{ |
|
837
|
|
|
|
|
838
|
|
|
function AtomCreator10() |
|
|
|
|
|
|
839
|
|
|
{ |
|
840
|
|
|
$this->contentType = "application/atom+xml"; |
|
841
|
|
|
$this->encoding = "utf-8"; |
|
842
|
|
|
} |
|
843
|
|
|
|
|
844
|
|
|
function createFeed( $timezone ) |
|
|
|
|
|
|
845
|
|
|
{ |
|
846
|
|
|
$feed = "<?xml version=\"1.0\" encoding=\"".$this->encoding."\"?>\n"; |
|
847
|
|
|
$feed.= $this->_createGeneratorComment(); |
|
848
|
|
|
$feed.= $this->_createStylesheetReferences(); |
|
849
|
|
|
$feed.= "<feed xmlns=\"http://www.w3.org/2005/Atom\""; |
|
850
|
|
|
if ($this->language!="") { |
|
851
|
|
|
$feed.= " xml:lang=\"".$this->language."\""; |
|
852
|
|
|
} |
|
853
|
|
|
$feed.= ">\n"; |
|
854
|
|
|
$feed.= " <title>".htmlspecialchars($this->title)."</title>\n"; |
|
855
|
|
|
$feed.= " <subtitle type=\"html\">".htmlspecialchars($this->description)."</subtitle>\n"; |
|
856
|
|
|
$feed.= " <link rel=\"alternate\" type=\"text/html\" href=\"".htmlspecialchars($this->link)."\"/>\n"; |
|
857
|
|
|
$feed.= " <id>".htmlspecialchars($this->link)."</id>\n"; |
|
858
|
|
|
$now = new DateTime('@' . time()); |
|
859
|
|
|
$feed.= " <updated>".htmlspecialchars($now->format('c'))."</updated>\n"; |
|
860
|
|
|
if ($this->editor!="") { |
|
861
|
|
|
$feed.= " <author>\n"; |
|
862
|
|
|
$feed.= " <name>".$this->editor."</name>\n"; |
|
863
|
|
|
if ($this->editorEmail!="") { |
|
864
|
|
|
$feed.= " <email>".$this->editorEmail."</email>\n"; |
|
865
|
|
|
} |
|
866
|
|
|
$feed.= " </author>\n"; |
|
867
|
|
|
} |
|
868
|
|
|
$feed.= " <generator>".FEEDCREATOR_VERSION."</generator>\n"; |
|
869
|
|
|
$feed.= "<link rel=\"self\" type=\"application/atom+xml\" href=\"". htmlspecialchars($this->syndicationURL) . "\" />\n"; |
|
870
|
|
|
$feed.= $this->_createAdditionalElements($this->additionalElements, " "); |
|
871
|
|
|
for ($i=0;$i<count($this->items);$i++) { |
|
|
|
|
|
|
872
|
|
|
$feed.= " <entry>\n"; |
|
873
|
|
|
$feed.= " <title>".htmlspecialchars(strip_tags($this->items[$i]->title))."</title>\n"; |
|
874
|
|
|
$feed.= " <link rel=\"alternate\" type=\"text/html\" href=\"".htmlspecialchars($this->items[$i]->link)."\"/>\n"; |
|
875
|
|
|
if ($this->items[$i]->date=="") { |
|
876
|
|
|
$this->items[$i]->date = time(); |
|
877
|
|
|
} |
|
878
|
|
|
$itemDate = new FeedDate($this->items[$i]->date); |
|
879
|
|
|
$feed.= " <published>".htmlspecialchars($itemDate->iso8601())."</published>\n"; |
|
880
|
|
|
$feed.= " <updated>".htmlspecialchars($itemDate->iso8601())."</updated>\n"; |
|
881
|
|
|
$feed.= " <id>".htmlspecialchars($this->items[$i]->link)."</id>\n"; |
|
882
|
|
|
$feed.= $this->_createAdditionalElements($this->items[$i]->additionalElements, " "); |
|
883
|
|
|
if ($this->items[$i]->author!="") { |
|
884
|
|
|
$feed.= " <author>\n"; |
|
885
|
|
|
$feed.= " <name>".htmlspecialchars($this->items[$i]->author)."</name>\n"; |
|
886
|
|
|
$feed.= " </author>\n"; |
|
887
|
|
|
} |
|
888
|
|
View Code Duplication |
if ($this->items[$i]->description!="") { |
|
|
|
|
|
|
889
|
|
|
$feed.= " <summary type=\"html\">".htmlspecialchars($this->items[$i]->description)."</summary>\n"; |
|
890
|
|
|
} |
|
891
|
|
|
if ($this->items[$i]->enclosure != null) { |
|
892
|
|
|
$feed.=" <link rel=\"enclosure\" href=\"". $this->items[$i]->enclosure->url ."\" type=\"". $this->items[$i]->enclosure->type."\" length=\"". $this->items[$i]->enclosure->length . "\" />\n"; |
|
893
|
|
|
} |
|
894
|
|
|
$feed.= " </entry>\n"; |
|
895
|
|
|
} |
|
896
|
|
|
$feed.= "</feed>\n"; |
|
897
|
|
|
return $feed; |
|
898
|
|
|
} |
|
899
|
|
|
|
|
900
|
|
|
|
|
901
|
|
|
} |
|
902
|
|
|
|
|
903
|
|
|
?> |
|
|
|
|
|
|
904
|
|
|
|
Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.