1 files changed, 151 insertions, 0 deletions
diff --git a/3rdparty/ZendFeed/Reader/Extension/Syndication/Feed.php b/3rdparty/ZendFeed/Reader/Extension/Syndication/Feed.php
new file mode 100644
index 000000000..db1724c14
--- /dev/null
+++ b/3rdparty/ZendFeed/Reader/Extension/Syndication/Feed.php
@@ -0,0 +1,151 @@
+<?php
+/**
+ * Zend Framework (http://framework.zend.com/)
+ *
+ * @link      http://github.com/zendframework/zf2 for the canonical source repository
+ * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+namespace Zend\Feed\Reader\Extension\Syndication;
+
+use DateTime;
+use Zend\Feed\Reader;
+use Zend\Feed\Reader\Extension;
+
+class Feed extends Extension\AbstractFeed
+{
+    /**
+     * Get update period
+     *
+     * @return string
+     * @throws Reader\Exception\InvalidArgumentException
+     */
+    public function getUpdatePeriod()
+    {
+        $name = 'updatePeriod';
+        $period = $this->getData($name);
+
+        if ($period === null) {
+            $this->data[$name] = 'daily';
+            return 'daily'; //Default specified by spec
+        }
+
+        switch ($period) {
+            case 'hourly':
+            case 'daily':
+            case 'weekly':
+            case 'yearly':
+                return $period;
+            default:
+                throw new Reader\Exception\InvalidArgumentException("Feed specified invalid update period: '$period'."
+                    .  " Must be one of hourly, daily, weekly or yearly"
+                );
+        }
+    }
+
+    /**
+     * Get update frequency
+     *
+     * @return int
+     */
+    public function getUpdateFrequency()
+    {
+        $name = 'updateFrequency';
+        $freq = $this->getData($name, 'number');
+
+        if (!$freq || $freq < 1) {
+            $this->data[$name] = 1;
+            return 1;
+        }
+
+        return $freq;
+    }
+
+    /**
+     * Get update frequency as ticks
+     *
+     * @return int
+     */
+    public function getUpdateFrequencyAsTicks()
+    {
+        $name = 'updateFrequency';
+        $freq = $this->getData($name, 'number');
+
+        if (!$freq || $freq < 1) {
+            $this->data[$name] = 1;
+            $freq = 1;
+        }
+
+        $period = $this->getUpdatePeriod();
+        $ticks = 1;
+
+        switch ($period) {
+            case 'yearly':
+                $ticks *= 52; //TODO: fix generalisation, how?
+                // no break
+            case 'weekly':
+                $ticks *= 7;
+                // no break
+            case 'daily':
+                $ticks *= 24;
+                // no break
+            case 'hourly':
+                $ticks *= 3600;
+                break;
+            default: //Never arrive here, exception thrown in getPeriod()
+                break;
+        }
+
+        return $ticks / $freq;
+    }
+
+    /**
+     * Get update base
+     *
+     * @return DateTime|null
+     */
+    public function getUpdateBase()
+    {
+        $updateBase = $this->getData('updateBase');
+        $date = null;
+        if ($updateBase) {
+            $date = DateTime::createFromFormat(DateTime::W3C, $updateBase);
+        }
+        return $date;
+    }
+
+    /**
+     * Get the entry data specified by name
+     *
+     * @param string $name
+     * @param string $type
+     * @return mixed|null
+     */
+    private function getData($name, $type = 'string')
+    {
+        if (array_key_exists($name, $this->data)) {
+            return $this->data[$name];
+        }
+
+        $data = $this->xpath->evaluate($type . '(' . $this->getXpathPrefix() . '/syn10:' . $name . ')');
+
+        if (!$data) {
+            $data = null;
+        }
+
+        $this->data[$name] = $data;
+
+        return $data;
+    }
+
+    /**
+     * Register Syndication namespaces
+     *
+     * @return void
+     */
+    protected function registerNamespaces()
+    {
+        $this->xpath->registerNamespace('syn10', 'http://purl.org/rss/1.0/modules/syndication/');
+    }
+}