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<?php
/**
* AtomCreator10 is a FeedCreator that implements the atom specification,
* as in http://www.atomenabled.org/developers/syndication/atom-format-spec.php
* Please note that just by using AtomCreator10 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
* AtomCreator10::additionalElements.
*
* @see FeedCreator#additionalElements
* @since 1.7.2-mod (modified)
* @author Mohammad Hafiz Ismail (mypapit@gmail.com)
*/
class AtomCreator10 extends FeedCreator
{
/**
* AtomCreator10 constructor.
*/
public function __construct()
{
$this->contentType = "application/atom+xml";
$this->encoding = "utf-8";
}
/** @inheritdoc */
public function createFeed()
{
$feed = "<?xml version=\"1.0\" encoding=\"".$this->encoding."\"?>\n";
$feed .= $this->_createGeneratorComment();
$feed .= $this->_createStylesheetReferences();
$feed .= "<feed xmlns=\"http://www.w3.org/2005/Atom\"";
if (!empty($this->items[0]->lat)) {
$feed .= " xmlns:georss=\"http://www.georss.org/georss\"\n";
}
if ($this->language != "") {
$feed .= " xml:lang=\"".$this->language."\"";
}
$feed .= ">\n";
$feed .= " <title>".htmlspecialchars($this->title)."</title>\n";
$feed .= " <subtitle>".htmlspecialchars($this->description)."</subtitle>\n";
$feed .= " <link rel=\"alternate\" type=\"text/html\" href=\"".htmlspecialchars($this->link)."\"/>\n";
$feed .= " <id>".htmlspecialchars($this->link)."</id>\n";
$now = new FeedDate();
$feed .= " <updated>".htmlspecialchars($now->iso8601())."</updated>\n";
if ($this->editor != "") {
$feed .= " <author>\n";
$feed .= " <name>".$this->editor."</name>\n";
if ($this->editorEmail != "") {
$feed .= " <email>".$this->editorEmail."</email>\n";
}
$feed .= " </author>\n";
}
if ($this->category != "") {
$feed .= " <category term=\"".htmlspecialchars($this->category)."\" />\n";
}
if ($this->copyright != "") {
$feed .= " <rights>".FeedCreator::iTrunc(htmlspecialchars($this->copyright), 100)."</rights>\n";
}
$feed .= " <generator>".$this->version()."</generator>\n";
$feed .= " <link rel=\"self\" type=\"application/atom+xml\" href=\"".htmlspecialchars(
$this->syndicationURL
)."\" />\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);
$feed .= " <published>".htmlspecialchars($itemDate->iso8601())."</published>\n";
$feed .= " <updated>".htmlspecialchars($itemDate->iso8601())."</updated>\n";
$tempguid = $this->items[$i]->link;
if ($this->items[$i]->guid != "") {
$tempguid = $this->items[$i]->guid;
}
$feed .= " <id>".htmlspecialchars($tempguid)."</id>\n";
$feed .= $this->_createAdditionalElements($this->items[$i]->additionalElements, " ");
if ($this->items[$i]->author != "") {
$feed .= " <author>\n";
$feed .= " <name>".htmlspecialchars($this->items[$i]->author)."</name>\n";
if ($this->items[$i]->authorEmail != "") {
$feed .= " <email>".htmlspecialchars($this->items[$i]->authorEmail)."</email>\n";
}
if ($this->items[$i]->authorURL != "") {
$feed .= " <uri>".htmlspecialchars($this->items[$i]->authorURL)."</uri>\n";
}
$feed .= " </author>\n";
}
if (!empty($this->items[$i]->category)) {
foreach ((array) $this->items[$i]->category as $category) {
$feed .= " <category ";
if ($this->items[$i]->categoryScheme != "") {
$feed .= " scheme=\"".htmlspecialchars($this->items[$i]->categoryScheme)."\" ";
}
$feed .= " term=\"".htmlspecialchars($category)."\" />\n";
}
}
if ($this->items[$i]->description != "") {
/*
* ATOM should have at least summary tag, however this implementation may be inaccurate
*/
$tempdesc = $this->items[$i]->getDescription();
$temptype = "";
if ($this->items[$i]->descriptionHtmlSyndicated) {
$temptype = " type=\"html\"";
$tempdesc = $this->items[$i]->getDescription();
}
if (empty($this->items[$i]->descriptionTruncSize)) {
$feed .= " <content".$temptype.">".$tempdesc."</content>\n";
}
$feed .= " <summary".$temptype.">".$tempdesc."</summary>\n";
} else {
$feed .= " <summary>no summary</summary>\n";
}
if ($this->items[$i]->enclosure != null) {
$feed .= " <link rel=\"enclosure\" href=\"".$this->items[$i]->enclosure->url."\" type=\"".$this->items[$i]->enclosure->type."\" length=\"".$this->items[$i]->enclosure->length."\"";
if ($this->items[$i]->enclosure->language != "") {
$feed .= " xml:lang=\"".$this->items[$i]->enclosure->language."\" ";
}
if ($this->items[$i]->enclosure->title != "") {
$feed .= " title=\"".$this->items[$i]->enclosure->title."\" ";
}
$feed .= " /> \n";
}
if ($this->items[$i]->lat != "") {
$feed .= " <georss:point>".$this->items[$i]->lat." ".$this->items[$i]->long."</georss:point>\n";
}
$feed .= " </entry>\n";
}
$feed .= "</feed>\n";
return $feed;
}
}
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