classes/feeditem/rss.php

   1 <?php
   2 class FeedItem_RSS extends FeedItem_Common {
   3         function get_id() {
   4                 $id = $this->elem->getElementsByTagName("guid")->item(0);
   5
   6                 if ($id) {
   7                         return $id->nodeValue;
   8                 } else {
   9                         return $this->get_link();
  10                 }
  11         }
  12
  13         function get_date() {
  14                 $pubDate = $this->elem->getElementsByTagName("pubDate")->item(0);
  15
  16                 if ($pubDate) {
  17                         return strtotime($pubDate->nodeValue);
  18                 }
  19
  20                 $date = $this->xpath->query("dc:date", $this->elem)->item(0);
  21
  22                 if ($date) {
  23                         return strtotime($date->nodeValue);
  24                 }
  25         }
  26
  27         function get_link() {
  28                 $links = $this->xpath->query("atom:link", $this->elem);
  29
  30                 foreach ($links as $link) {
  31                         if ($link && $link->hasAttribute("href") &&
  32                                 (!$link->hasAttribute("rel")
  33                                         || $link->getAttribute("rel") == "alternate"
  34                                         || $link->getAttribute("rel") == "standout")) {
  35
  36                                 return trim($link->getAttribute("href"));
  37                         }
  38                 }
  39
  40                 $link = $this->elem->getElementsByTagName("guid")->item(0);
  41
  42                 if ($link && $link->hasAttributes() && $link->getAttribute("isPermaLink") == "true") {
  43                         return trim($link->nodeValue);
  44                 }
  45
  46                 $link = $this->elem->getElementsByTagName("link")->item(0);
  47
  48                 if ($link) {
  49                         return trim($link->nodeValue);
  50                 }
  51         }
  52
  53         function get_title() {
  54                 $title = $this->xpath->query("title", $this->elem)->item(0);
  55
  56                 if ($title) {
  57                         return trim($title->nodeValue);
  58                 }
  59
  60                 // if the document has a default namespace then querying for
  61                 // title would fail because of reasons so let's try the old way
  62                 $title = $this->elem->getElementsByTagName("title")->item(0);
  63
  64                 if ($title) {
  65                         return trim($title->nodeValue);
  66                 }
  67         }
  68
  69         function get_content() {
  70                 $contentA = $this->xpath->query("content:encoded", $this->elem)->item(0);
  71                 $contentB = $this->elem->getElementsByTagName("description")->item(0);
  72
  73                 if ($contentA && !$contentB) {
  74                         return $contentA->nodeValue;
  75                 }
  76
  77
  78                 if ($contentB && !$contentA) {
  79                         return $contentB->nodeValue;
  80                 }
  81
  82                 if ($contentA && $contentB) {
  83                         return mb_strlen($contentA->nodeValue) > mb_strlen($contentB->nodeValue) ?
  84                                 $contentA->nodeValue : $contentB->nodeValue;
  85                 }
  86         }
  87
  88         function get_description() {
  89                 $summary = $this->elem->getElementsByTagName("description")->item(0);
  90
  91                 if ($summary) {
  92                         return $summary->nodeValue;
  93                 }
  94         }
  95
  96         function get_categories() {
  97                 $categories = $this->elem->getElementsByTagName("category");
  98                 $cats = array();
  99
 100                 foreach ($categories as $cat) {
 101                         array_push($cats, trim($cat->nodeValue));
 102                 }
 103
 104                 $categories = $this->xpath->query("dc:subject", $this->elem);
 105
 106                 foreach ($categories as $cat) {
 107                         array_push($cats, trim($cat->nodeValue));
 108                 }
 109
 110                 return $cats;
 111         }
 112
 113         function get_enclosures() {
 114                 $enclosures = $this->elem->getElementsByTagName("enclosure");
 115
 116                 $encs = array();
 117
 118                 foreach ($enclosures as $enclosure) {
 119                         $enc = new FeedEnclosure();
 120
 121                         $enc->type = $enclosure->getAttribute("type");
 122                         $enc->link = $enclosure->getAttribute("url");
 123                         $enc->length = $enclosure->getAttribute("length");
 124                         $enc->height = $enclosure->getAttribute("height");
 125                         $enc->width = $enclosure->getAttribute("width");
 126
 127                         array_push($encs, $enc);
 128                 }
 129
 130                 $enclosures = $this->xpath->query("media:content", $this->elem);
 131
 132                 foreach ($enclosures as $enclosure) {
 133                         $enc = new FeedEnclosure();
 134
 135                         $enc->type = $enclosure->getAttribute("type");
 136                         $enc->link = $enclosure->getAttribute("url");
 137                         $enc->length = $enclosure->getAttribute("length");
 138                         $enc->height = $enclosure->getAttribute("height");
 139                         $enc->width = $enclosure->getAttribute("width");
 140
 141                         $desc = $this->xpath->query("media:description", $enclosure)->item(0);
 142                         if ($desc) $enc->title = strip_tags($desc->nodeValue);
 143
 144                         array_push($encs, $enc);
 145                 }
 146
 147
 148                 $enclosures = $this->xpath->query("media:group", $this->elem);
 149
 150                 foreach ($enclosures as $enclosure) {
 151                         $enc = new FeedEnclosure();
 152
 153                         $content = $this->xpath->query("media:content", $enclosure)->item(0);
 154
 155                         if ($content) {
 156                                 $enc->type = $content->getAttribute("type");
 157                                 $enc->link = $content->getAttribute("url");
 158                                 $enc->length = $content->getAttribute("length");
 159                                 $enc->height = $content->getAttribute("height");
 160                                 $enc->width = $content->getAttribute("width");
 161
 162                                 $desc = $this->xpath->query("media:description", $content)->item(0);
 163                                 if ($desc) {
 164                                         $enc->title = strip_tags($desc->nodeValue);
 165                                 } else {
 166                                         $desc = $this->xpath->query("media:description", $enclosure)->item(0);
 167                                         if ($desc) $enc->title = strip_tags($desc->nodeValue);
 168                                 }
 169
 170                                 array_push($encs, $enc);
 171                         }
 172                 }
 173
 174                 $enclosures = $this->xpath->query("media:thumbnail", $this->elem);
 175
 176                 foreach ($enclosures as $enclosure) {
 177                         $enc = new FeedEnclosure();
 178
 179                         $enc->type = "image/generic";
 180                         $enc->link = $enclosure->getAttribute("url");
 181                         $enc->height = $enclosure->getAttribute("height");
 182                         $enc->width = $enclosure->getAttribute("width");
 183
 184                         array_push($encs, $enc);
 185                 }
 186
 187                 return $encs;
 188         }
 189
 190 }
 191 ?>