This repository has been archived by the owner on Jan 30, 2020. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 42
/
Feed.php
167 lines (147 loc) · 4.15 KB
/
Feed.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Feed_Reader
* @copyright Copyright (c) 2005-2012 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 Zend\Feed\Reader;
use Zend\Feed\Reader\Extension;
use Zend\Date;
/**
* @category Zend
* @package Zend_Feed_Reader
* @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Feed extends \Zend\Feed\Reader\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)
{
//intentional fall through
case 'yearly':
$ticks *= 52; //TODO: fix generalisation, how?
case 'weekly':
$ticks *= 7;
case 'daily':
$ticks *= 24;
case 'hourly':
$ticks *= 3600;
break;
default: //Never arrive here, exception thrown in getPeriod()
break;
}
return $ticks / $freq;
}
/**
* Get update base
*
* @return Date\Date|null
*/
public function getUpdateBase()
{
$updateBase = $this->_getData('updateBase');
$date = null;
if ($updateBase) {
$date = new Date\Date;
$date->set($updateBase, Date\Date::W3C);
}
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/');
}
}