ttrss/classes/feeditem/atom.php

180 lines
4.2 KiB
PHP

<?php
class FeedItem_Atom extends FeedItem_Common {
function get_id() {
$id = $this->elem->getElementsByTagName("id")->item(0);
if ($id) {
return $id->nodeValue;
} else {
return $this->get_link();
}
}
function get_date() {
$updated = $this->elem->getElementsByTagName("updated")->item(0);
if ($updated) {
return strtotime($updated->nodeValue);
}
$published = $this->elem->getElementsByTagName("published")->item(0);
if ($published) {
return strtotime($published->nodeValue);
}
$date = $this->xpath->query("dc:date", $this->elem)->item(0);
if ($date) {
return strtotime($date->nodeValue);
}
}
function rel2abs($rel, $base)
{
/* return if already absolute URL */
if (parse_url($rel, PHP_URL_SCHEME) != '') return $rel;
/* queries and anchors */
if ($rel[0]=='#' || $rel[0]=='?') return $base.$rel;
/* parse base URL and convert to local variables:
$scheme, $host, $path */
extract(parse_url($base));
/* remove non-directory element from path */
$path = preg_replace('#/[^/]*$#', '', $path);
/* destroy path if relative url points to root */
if ($rel[0] == '/') $path = '';
/* dirty absolute URL */
$abs = "$host$path/$rel";
/* replace '//' or '/./' or '/foo/../' with '/' */
$re = array('#(/\.?/)#', '#/(?!\.\.)[^/]+/\.\./#');
for($n=1; $n>0; $abs=preg_replace($re, '/', $abs, -1, $n)) {}
/* absolute URL is ready! */
return $scheme.'://'.$abs;
}
function get_link() {
$links = $this->elem->getElementsByTagName("link");
foreach ($links as $link) {
if ($link && $link->hasAttribute("href") &&
(!$link->hasAttribute("rel")
|| $link->getAttribute("rel") == "alternate"
|| $link->getAttribute("rel") == "standout")) {
$base = $this->xpath->evaluate("string(ancestor-or-self::*[@xml:base][1]/@xml:base)",$link);
return $this->rel2abs($link->getAttribute("href"), $base);
}
}
}
function get_title() {
$title = $this->elem->getElementsByTagName("title")->item(0);
if ($title) {
return $title->nodeValue;
}
}
function get_content() {
$content = $this->elem->getElementsByTagName("content")->item(0);
if ($content) {
if ($content->hasAttribute('type')) {
if ($content->getAttribute('type') == 'xhtml') {
for ($i = 0; $i < $content->childNodes->length; $i++) {
$child = $content->childNodes->item($i);
if ($child->hasChildNodes()) {
return $this->doc->saveXML($child);
}
}
}
}
return $content->nodeValue;
}
}
function get_description() {
$content = $this->elem->getElementsByTagName("summary")->item(0);
if ($content) {
if ($content->hasAttribute('type')) {
if ($content->getAttribute('type') == 'xhtml') {
for ($i = 0; $i < $content->childNodes->length; $i++) {
$child = $content->childNodes->item($i);
if ($child->hasChildNodes()) {
return $this->doc->saveXML($child);
}
}
}
}
return $content->nodeValue;
}
}
function get_categories() {
$categories = $this->elem->getElementsByTagName("category");
$cats = array();
foreach ($categories as $cat) {
if ($cat->hasAttribute("term"))
array_push($cats, $cat->getAttribute("term"));
}
$categories = $this->xpath->query("dc:subject", $this->elem);
foreach ($categories as $cat) {
array_push($cats, $cat->nodeValue);
}
return $cats;
}
function get_enclosures() {
$links = $this->elem->getElementsByTagName("link");
$encs = array();
foreach ($links as $link) {
if ($link && $link->hasAttribute("href") && $link->hasAttribute("rel")) {
if ($link->getAttribute("rel") == "enclosure") {
$enc = new FeedEnclosure();
$enc->type = $link->getAttribute("type");
$enc->link = $link->getAttribute("href");
$enc->length = $link->getAttribute("length");
array_push($encs, $enc);
}
}
}
$enclosures = $this->xpath->query("media:content", $this->elem);
foreach ($enclosures as $enclosure) {
$enc = new FeedEnclosure();
$enc->type = $enclosure->getAttribute("type");
$enc->link = $enclosure->getAttribute("url");
$enc->length = $enclosure->getAttribute("length");
array_push($encs, $enc);
}
return $encs;
}
}
?>