classes/feeditem/atom.php

   1 <?php
   2 class FeedItem_Atom extends FeedItem_Common {
   3         function get_id() {
   4                 $id = $this->elem->getElementsByTagName("id")->item(0);
   5
   6                 if ($id) {
   7                         return $id->nodeValue;
   8                 } else {
   9                         return $this->get_link();
  10                 }
  11         }
  12
  13         function get_date() {
  14                 $updated = $this->elem->getElementsByTagName("updated")->item(0);
  15
  16                 if ($updated) {
  17                         return strtotime($updated->nodeValue);
  18                 }
  19
  20                 $published = $this->elem->getElementsByTagName("published")->item(0);
  21
  22                 if ($published) {
  23                         return strtotime($published->nodeValue);
  24                 }
  25
  26                 $date = $this->xpath->query("dc:date", $this->elem)->item(0);
  27
  28                 if ($date) {
  29                         return strtotime($date->nodeValue);
  30                 }
  31         }
  32
  33         function get_link() {
  34                 $links = $this->elem->getElementsByTagName("link");
  35
  36                 foreach ($links as $link) {
  37                         if ($link && $link->hasAttribute("href") &&
  38                                 (!$link->hasAttribute("rel")
  39                                         || $link->getAttribute("rel") == "alternate"
  40                                         || $link->getAttribute("rel") == "standout")) {
  41
  42                                 return $link->getAttribute("href");
  43                         }
  44                 }
  45         }
  46
  47         function get_title() {
  48                 $title = $this->elem->getElementsByTagName("title")->item(0);
  49
  50                 if ($title) {
  51                         return $title->nodeValue;
  52                 }
  53         }
  54
  55         function get_content() {
  56                 $content = $this->elem->getElementsByTagName("content")->item(0);
  57
  58                 if ($content) {
  59                         if ($content->hasAttribute('type')) {
  60                                 if ($content->getAttribute('type') == 'xhtml') {
  61                                         for ($i = 0; $i < $content->childNodes->length; $i++) {
  62                                                 $child = $content->childNodes->item($i);
  63
  64                                                 if ($child->hasChildNodes()) {
  65                                                         return $this->doc->saveXML($child);
  66                                                 }
  67                                         }
  68                                 }
  69                         }
  70
  71                         return $content->nodeValue;
  72                 }
  73         }
  74
  75         function get_description() {
  76                 $content = $this->elem->getElementsByTagName("summary")->item(0);
  77
  78                 if ($content) {
  79                         if ($content->hasAttribute('type')) {
  80                                 if ($content->getAttribute('type') == 'xhtml') {
  81                                         for ($i = 0; $i < $content->childNodes->length; $i++) {
  82                                                 $child = $content->childNodes->item($i);
  83
  84                                                 if ($child->hasChildNodes()) {
  85                                                         return $this->doc->saveXML($child);
  86                                                 }
  87                                         }
  88                                 }
  89                         }
  90
  91                         return $content->nodeValue;
  92                 }
  93
  94         }
  95
  96         function get_categories() {
  97                 $categories = $this->elem->getElementsByTagName("category");
  98                 $cats = array();
  99
 100                 foreach ($categories as $cat) {
 101                         if ($cat->hasAttribute("term"))
 102                                 array_push($cats, $cat->getAttribute("term"));
 103                 }
 104
 105                 $categories = $this->xpath->query("dc:subject", $this->elem);
 106
 107                 foreach ($categories as $cat) {
 108                         array_push($cats, $cat->nodeValue);
 109                 }
 110
 111                 return $cats;
 112         }
 113
 114         function get_enclosures() {
 115                 $links = $this->elem->getElementsByTagName("link");
 116
 117                 $encs = array();
 118
 119                 foreach ($links as $link) {
 120                         if ($link && $link->hasAttribute("href") && $link->hasAttribute("rel")) {
 121                                 if ($link->getAttribute("rel") == "enclosure") {
 122                                         $enc = new FeedEnclosure();
 123
 124                                         $enc->type = $link->getAttribute("type");
 125                                         $enc->link = $link->getAttribute("href");
 126                                         $enc->length = $link->getAttribute("length");
 127
 128                                         array_push($encs, $enc);
 129                                 }
 130                         }
 131                 }
 132
 133                 $enclosures = $this->xpath->query("media:content", $this->elem);
 134
 135                 foreach ($enclosures as $enclosure) {
 136                         $enc = new FeedEnclosure();
 137
 138                         $enc->type = $enclosure->getAttribute("type");
 139                         $enc->link = $enclosure->getAttribute("url");
 140                         $enc->length = $enclosure->getAttribute("length");
 141
 142                         array_push($encs, $enc);
 143                 }
 144
 145                 return $encs;
 146         }
 147
 148 }
 149 ?>