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<?php
/**
* 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
{
/** @var string Stores this RSS feed's version number. */
protected $RSSVersion;
/**
* RSSCreator091 constructor.
*/
function __construct()
{
$this->_setRSSVersion("0.91");
$this->contentType = "application/rss+xml";
}
/**
* Sets this RSS feed's version number.
*
* @param string $version
*/
protected function _setRSSVersion($version)
{
$this->RSSVersion = $version;
}
/** @inheritdoc */
public function createFeed()
{
$feed = "<?xml version=\"1.0\" encoding=\"".$this->encoding."\"?>\n";
$feed .= $this->_createGeneratorComment();
$feed .= $this->_createStylesheetReferences();
$feed .= "<rss version=\"".$this->RSSVersion."\"";
if (count($this->items) > 0
&& !empty($this->items[0]->lat)
) {
$feed .= " xmlns:georss=\"http://www.georss.org/georss/\"\n";
}
if (count($this->items) > 0
&& isset($this->items[0]->additionalElements['xcal:dtstart'])
) {
$feed .= " xmlns:xcal=\"urn:ietf:params:xml:ns:xcal\"\n";
}
$feed .= ">\n";
if ($this->format == 'BASE') {
$feed .= " <channel xmlns:g=\"http://base.google.com/ns/1.0\">\n";
} else {
$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(
$this->lastBuildDate ?: $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 != "") {
$feed .= " <description>".htmlspecialchars($this->image->description)."</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";
$creator = $this->getAuthor($this->items[$i]->author, $this->items[$i]->authorEmail);
if ($creator) {
$feed .= " <author>".htmlspecialchars($creator)."</author>\n";
}
/*
// on hold
if ($this->items[$i]->source!="") {
$feed.= " <source>".htmlspecialchars($this->items[$i]->source)."</source>\n";
}
*/
if ($this->items[$i]->lat != "") {
$feed .= " <georss:point>".$this->items[$i]->lat." ".$this->items[$i]->long."</georss:point>\n";
}
if (is_array($this->items[$i]->category)) {
foreach ($this->items[$i]->category as $cat) {
$feed .= " <category>".htmlspecialchars($cat)."</category>\n";
}
} else {
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[$i]->guid)."</guid>\n";
}
if ($this->items[$i]->thumb != "") {
$feed .= " <g:image_link>".htmlspecialchars($this->items[$i]->thumb)."</g:image_link>\n";
}
$feed .= $this->_createAdditionalElements($this->items[$i]->additionalElements, " ");
$feed .= " </item>\n";
}
$feed .= " </channel>\n";
$feed .= "</rss>\n";
return $feed;
}
/**
* Compose the RSS-0.91 and RSS-2.0 author field.
*
* @author Joe Lapp <joe.lapp@pobox.com>
*/
function getAuthor($author, $email)
{
if ($author && $email) {
return $email.' ('.$author.')';
}
return $email;
}
}
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