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1 | <?php | |
2 | class FeedItem_Atom extends FeedItem_Common { | |
3 | const NS_XML = "http://www.w3.org/XML/1998/namespace"; | |
4 | ||
5 | function get_id() { | |
6 | $id = $this->elem->getElementsByTagName("id")->item(0); | |
7 | ||
8 | if ($id) { | |
9 | return $id->nodeValue; | |
10 | } else { | |
11 | return $this->get_link(); | |
12 | } | |
13 | } | |
14 | ||
15 | function get_date() { | |
16 | $updated = $this->elem->getElementsByTagName("updated")->item(0); | |
17 | ||
18 | if ($updated) { | |
19 | return strtotime($updated->nodeValue); | |
20 | } | |
21 | ||
22 | $published = $this->elem->getElementsByTagName("published")->item(0); | |
23 | ||
24 | if ($published) { | |
25 | return strtotime($published->nodeValue); | |
26 | } | |
27 | ||
28 | $date = $this->xpath->query("dc:date", $this->elem)->item(0); | |
29 | ||
30 | if ($date) { | |
31 | return strtotime($date->nodeValue); | |
32 | } | |
33 | } | |
34 | ||
35 | ||
36 | function get_link() { | |
37 | $links = $this->elem->getElementsByTagName("link"); | |
38 | ||
39 | foreach ($links as $link) { | |
40 | if ($link && $link->hasAttribute("href") && | |
41 | (!$link->hasAttribute("rel") | |
42 | || $link->getAttribute("rel") == "alternate" | |
43 | || $link->getAttribute("rel") == "standout")) { | |
44 | $base = $this->xpath->evaluate("string(ancestor-or-self::*[@xml:base][1]/@xml:base)", $link); | |
45 | ||
46 | if ($base) | |
47 | return rewrite_relative_url($base, trim($link->getAttribute("href"))); | |
48 | else | |
49 | return trim($link->getAttribute("href")); | |
50 | ||
51 | } | |
52 | } | |
53 | } | |
54 | ||
55 | function get_title() { | |
56 | $title = $this->elem->getElementsByTagName("title")->item(0); | |
57 | ||
58 | if ($title) { | |
59 | return trim($title->nodeValue); | |
60 | } | |
61 | } | |
62 | ||
63 | function get_content() { | |
64 | $content = $this->elem->getElementsByTagName("content")->item(0); | |
65 | ||
66 | if ($content) { | |
67 | if ($content->hasAttribute('type')) { | |
68 | if ($content->getAttribute('type') == 'xhtml') { | |
69 | for ($i = 0; $i < $content->childNodes->length; $i++) { | |
70 | $child = $content->childNodes->item($i); | |
71 | ||
72 | if ($child->hasChildNodes()) { | |
73 | return $this->doc->saveHTML($child); | |
74 | } | |
75 | } | |
76 | } | |
77 | } | |
78 | ||
79 | return $this->subtree_or_text($content); | |
80 | } | |
81 | } | |
82 | ||
83 | function get_description() { | |
84 | $content = $this->elem->getElementsByTagName("summary")->item(0); | |
85 | ||
86 | if ($content) { | |
87 | if ($content->hasAttribute('type')) { | |
88 | if ($content->getAttribute('type') == 'xhtml') { | |
89 | for ($i = 0; $i < $content->childNodes->length; $i++) { | |
90 | $child = $content->childNodes->item($i); | |
91 | ||
92 | if ($child->hasChildNodes()) { | |
93 | return $this->doc->saveHTML($child); | |
94 | } | |
95 | } | |
96 | } | |
97 | } | |
98 | ||
99 | return $this->subtree_or_text($content); | |
100 | } | |
101 | ||
102 | } | |
103 | ||
104 | function get_categories() { | |
105 | $categories = $this->elem->getElementsByTagName("category"); | |
106 | $cats = array(); | |
107 | ||
108 | foreach ($categories as $cat) { | |
109 | if ($cat->hasAttribute("term")) | |
110 | array_push($cats, trim($cat->getAttribute("term"))); | |
111 | } | |
112 | ||
113 | $categories = $this->xpath->query("dc:subject", $this->elem); | |
114 | ||
115 | foreach ($categories as $cat) { | |
116 | array_push($cats, trim($cat->nodeValue)); | |
117 | } | |
118 | ||
119 | return $cats; | |
120 | } | |
121 | ||
122 | function get_enclosures() { | |
123 | $links = $this->elem->getElementsByTagName("link"); | |
124 | ||
125 | $encs = array(); | |
126 | ||
127 | foreach ($links as $link) { | |
128 | if ($link && $link->hasAttribute("href") && $link->hasAttribute("rel")) { | |
129 | if ($link->getAttribute("rel") == "enclosure") { | |
130 | $enc = new FeedEnclosure(); | |
131 | ||
132 | $enc->type = $link->getAttribute("type"); | |
133 | $enc->link = $link->getAttribute("href"); | |
134 | $enc->length = $link->getAttribute("length"); | |
135 | ||
136 | array_push($encs, $enc); | |
137 | } | |
138 | } | |
139 | } | |
140 | ||
141 | $enclosures = $this->xpath->query("media:content", $this->elem); | |
142 | ||
143 | foreach ($enclosures as $enclosure) { | |
144 | $enc = new FeedEnclosure(); | |
145 | ||
146 | $enc->type = $enclosure->getAttribute("type"); | |
147 | $enc->link = $enclosure->getAttribute("url"); | |
148 | $enc->length = $enclosure->getAttribute("length"); | |
149 | $enc->height = $enclosure->getAttribute("height"); | |
150 | $enc->width = $enclosure->getAttribute("width"); | |
151 | ||
152 | $desc = $this->xpath->query("media:description", $enclosure)->item(0); | |
153 | if ($desc) $enc->title = strip_tags($desc->nodeValue); | |
154 | ||
155 | array_push($encs, $enc); | |
156 | } | |
157 | ||
158 | ||
159 | $enclosures = $this->xpath->query("media:group", $this->elem); | |
160 | ||
161 | foreach ($enclosures as $enclosure) { | |
162 | $enc = new FeedEnclosure(); | |
163 | ||
164 | $content = $this->xpath->query("media:content", $enclosure)->item(0); | |
165 | ||
166 | if ($content) { | |
167 | $enc->type = $content->getAttribute("type"); | |
168 | $enc->link = $content->getAttribute("url"); | |
169 | $enc->length = $content->getAttribute("length"); | |
170 | $enc->height = $content->getAttribute("height"); | |
171 | $enc->width = $content->getAttribute("width"); | |
172 | ||
173 | $desc = $this->xpath->query("media:description", $content)->item(0); | |
174 | if ($desc) { | |
175 | $enc->title = strip_tags($desc->nodeValue); | |
176 | } else { | |
177 | $desc = $this->xpath->query("media:description", $enclosure)->item(0); | |
178 | if ($desc) $enc->title = strip_tags($desc->nodeValue); | |
179 | } | |
180 | ||
181 | array_push($encs, $enc); | |
182 | } | |
183 | } | |
184 | ||
185 | $enclosures = $this->xpath->query("media:thumbnail", $this->elem); | |
186 | ||
187 | foreach ($enclosures as $enclosure) { | |
188 | $enc = new FeedEnclosure(); | |
189 | ||
190 | $enc->type = "image/generic"; | |
191 | $enc->link = $enclosure->getAttribute("url"); | |
192 | $enc->height = $enclosure->getAttribute("height"); | |
193 | $enc->width = $enclosure->getAttribute("width"); | |
194 | ||
195 | array_push($encs, $enc); | |
196 | } | |
197 | ||
198 | return $encs; | |
199 | } | |
200 | ||
201 | function get_language() { | |
202 | $lang = $this->elem->getAttributeNS(self::NS_XML, "lang"); | |
203 | ||
204 | if (!empty($lang)) { | |
205 | return $lang; | |
206 | } else { | |
207 | // Fall back to the language declared on the feed, if any. | |
208 | return $this->doc->firstChild->getAttributeNS(self::NS_XML, "lang"); | |
209 | } | |
210 | } | |
211 | } |