From b9eee80e08fab8ebcc1484e8d62cd646ac451f43 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@madoka.volgo-balt.ru>
Date: Wed, 1 May 2013 19:08:04 +0400
Subject: [PATCH] parser: add get_links()

---
 classes/feedparser.php | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/classes/feedparser.php b/classes/feedparser.php
index ed284a043..6d3a15802 100644
--- a/classes/feedparser.php
+++ b/classes/feedparser.php
@@ -6,6 +6,7 @@ class FeedParser {
 	private $link;
 	private $title;
 	private $type;
+	private $xpath;
 
 	const FEED_RDF = 0;
 	const FEED_RSS = 1;
@@ -26,6 +27,7 @@ class FeedParser {
 		$root = $this->doc->firstChild;
 		$xpath = new DOMXPath($this->doc);
 		$xpath->registerNamespace('atom', 'http://www.w3.org/2005/Atom');
+		$this->xpath = $xpath;
 
 		$root = $xpath->query("(//atom:feed|//channel)")->item(0);
 
@@ -115,4 +117,27 @@ class FeedParser {
 		return $this->items;
 	}
 
+	function get_links($rel) {
+		$rv = array();
+
+		switch ($this->type) {
+		case $this::FEED_ATOM:
+			$links = $this->xpath->query("//atom:feed/atom:link");
+
+			foreach ($links as $link) {
+				if (!$rel || $link->hasAttribute('rel') && $link->getAttribute('rel') == $rel) {
+					array_push($rv, $link->getAttribute('href'));
+				}
+			}
+			break;
+		case $this::FEED_RSS:
+			$links = $this->xpath->query("//channel/link");
+			if (!$rel || $link->hasAttribute('rel') && $link->getAttribute('rel') == $rel) {
+				array_push($rv, $link->getAttribute('href'));
+			}
+			break;
+		}
+
+		return $rv;
+	}
 } ?>