Subversion Repositories eFlore/Applications.cel

Rev

Go to most recent revision | Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
580 jpm 1
<?php
2
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
3
 
4
/**
5
 * RSS0.9 class for XML_Feed_Parser
6
 *
7
 * PHP versions 5
8
 *
9
 * LICENSE: This source file is subject to version 3.0 of the PHP license
10
 * that is available through the world-wide-web at the following URI:
11
 * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
12
 * the PHP License and are unable to obtain it through the web, please
13
 * send a note to license@php.net so we can mail you a copy immediately.
14
 *
15
 * @category   XML
16
 * @package    XML_Feed_Parser
17
 * @author     James Stewart <james@jystewart.net>
18
 * @copyright  2005 James Stewart <james@jystewart.net>
19
 * @license    http://www.gnu.org/copyleft/lesser.html  GNU LGPL 2.1
20
 * @version    CVS: $Id: RSS09.php 304308 2010-10-11 12:05:50Z clockwerx $
21
 * @link       http://pear.php.net/package/XML_Feed_Parser/
22
 */
23
 
24
/**
25
 * This class handles RSS0.9 feeds.
26
 *
27
 * @author    James Stewart <james@jystewart.net>
28
 * @version    Release: @package_version@
29
 * @package XML_Feed_Parser
30
 * @todo    Find a Relax NG URI we can use
31
 */
32
class XML_Feed_Parser_RSS09 extends XML_Feed_Parser_Type
33
{
34
    /**
35
     * The URI of the RelaxNG schema used to (optionally) validate the feed
36
     * @var string
37
     */
38
    protected $relax = '';
39
 
40
    /**
41
     * We're likely to use XPath, so let's keep it global
42
     * @var DOMXPath
43
     */
44
    protected $xpath;
45
 
46
    /**
47
     * The feed type we are parsing
48
     * @var string
49
     */
50
    public $version = 'RSS 0.9';
51
 
52
    /**
53
     * The class used to represent individual items
54
     * @var string
55
     */
56
    protected $itemClass = 'XML_Feed_Parser_RSS09Element';
57
 
58
    /**
59
     * The element containing entries
60
     * @var string
61
     */
62
    protected $itemElement = 'item';
63
 
64
    /**
65
     * Here we map those elements we're not going to handle individually
66
     * to the constructs they are. The optional second parameter in the array
67
     * tells the parser whether to 'fall back' (not apt. at the feed level) or
68
     * fail if the element is missing. If the parameter is not set, the function
69
     * will simply return false and leave it to the client to decide what to do.
70
     * @var array
71
     */
72
    protected $map = array(
73
        'title' => array('Text'),
74
        'link' => array('Text'),
75
        'description' => array('Text'),
76
        'image' => array('Image'),
77
        'textinput' => array('TextInput'));
78
 
79
    /**
80
     * Here we map some elements to their atom equivalents. This is going to be
81
     * quite tricky to pull off effectively (and some users' methods may vary)
82
     * but is worth trying. The key is the atom version, the value is RSS2.
83
     * @var array
84
     */
85
    protected $compatMap = array(
86
        'title' => array('title'),
87
        'link' => array('link'),
88
        'subtitle' => array('description'));
89
 
90
    /**
91
     * We will be working with multiple namespaces and it is useful to
92
     * keep them together
93
     * @var array
94
     */
95
    protected $namespaces = array(
96
        'rdf' => 'http://www.w3.org/1999/02/22-rdf-syntax-ns#');
97
 
98
    /**
99
     * Our constructor does nothing more than its parent.
100
     *
101
     * @todo    RelaxNG validation
102
     * @param    DOMDocument    $xml    A DOM object representing the feed
103
     * @param    bool (optional) $string    Whether or not to validate this feed
104
     */
105
    function __construct(DOMDocument $model, $strict = false)
106
    {
107
        $this->model = $model;
108
 
109
        $this->xpath = new DOMXPath($model);
110
        foreach ($this->namespaces as $key => $value) {
111
            $this->xpath->registerNamespace($key, $value);
112
        }
113
        $this->numberEntries = $this->count('item');
114
    }
115
 
116
    /**
117
     * Included for compatibility -- will not work with RSS 0.9
118
     *
119
     * This is not something that will work with RSS0.9 as it does not have
120
     * clear restrictions on the global uniqueness of IDs.
121
     *
122
     * @param    string    $id    any valid ID.
123
     * @return    false
124
     */
125
    function getEntryById($id)
126
    {
127
        return false;
128
    }
129
 
130
    /**
131
     * Get details of the image associated with the feed.
132
     *
133
     * @return  array|false an array simply containing the child elements
134
     */
135
    protected function getImage()
136
    {
137
        $images = $this->model->getElementsByTagName('image');
138
        if ($images->length > 0) {
139
            $image = $images->item(0);
140
            $details = array();
141
            if ($image->hasChildNodes()) {
142
                $details = array(
143
                    'title' => $image->getElementsByTagName('title')->item(0)->value,
144
                    'link' => $image->getElementsByTagName('link')->item(0)->value,
145
                    'url' => $image->getElementsByTagName('url')->item(0)->value);
146
            } else {
147
                $details = array('title' => false,
148
                    'link' => false,
149
                    'url' => $image->attributes->getNamedItem('resource')->nodeValue);
150
            }
151
            $details = array_merge($details,
152
                array('description' => false, 'height' => false, 'width' => false));
153
            if (! empty($details)) {
154
                return $details;
155
            }
156
        }
157
        return false;
158
    }
159
 
160
    /**
161
     * The textinput element is little used, but in the interests of
162
     * completeness we will support it.
163
     *
164
     * @return  array|false
165
     */
166
    protected function getTextInput()
167
    {
168
        $inputs = $this->model->getElementsByTagName('textinput');
169
        if ($inputs->length > 0) {
170
            $input = $inputs->item(0);
171
            $results = array();
172
            $results['title'] = isset(
173
                $input->getElementsByTagName('title')->item(0)->value) ?
174
                $input->getElementsByTagName('title')->item(0)->value : null;
175
            $results['description'] = isset(
176
                $input->getElementsByTagName('description')->item(0)->value) ?
177
                $input->getElementsByTagName('description')->item(0)->value : null;
178
            $results['name'] = isset(
179
                $input->getElementsByTagName('name')->item(0)->value) ?
180
                $input->getElementsByTagName('name')->item(0)->value : null;
181
            $results['link'] = isset(
182
                   $input->getElementsByTagName('link')->item(0)->value) ?
183
                   $input->getElementsByTagName('link')->item(0)->value : null;
184
            if (empty($results['link']) &&
185
                $input->attributes->getNamedItem('resource')) {
186
                $results['link'] = $input->attributes->getNamedItem('resource')->nodeValue;
187
            }
188
            if (! empty($results)) {
189
                return $results;
190
            }
191
        }
192
        return false;
193
    }
194
 
195
    /**
196
     * Get details of a link from the feed.
197
     *
198
     * In RSS1 a link is a text element but in order to ensure that we resolve
199
     * URLs properly we have a special function for them.
200
     *
201
     * @return  string
202
     */
203
    function getLink($offset = 0, $attribute = 'href', $params = false)
204
    {
205
        $links = $this->model->getElementsByTagName('link');
206
        if ($links->length <= $offset) {
207
            return false;
208
        }
209
        $link = $links->item($offset);
210
        return $this->addBase($link->nodeValue, $link);
211
    }
212
 
213
    /**
214
     * Not implemented - no available validation.
215
     */
216
    public function relaxNGValidate() {
217
        return true;
218
    }
219
}
220
 
221
?>