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 = $this->elem->getElementsByTagName("title")->item(0);
  55
  56                 if ($title) {
  57                         return trim($title->nodeValue);
  58                 }
  59         }
  60
  61         function get_content() {
  62                 $contentA = $this->xpath->query("content:encoded", $this->elem)->item(0);
  63                 $contentB = $this->elem->getElementsByTagName("description")->item(0);
  64
  65                 if ($contentA && !$contentB) {
  66                         return $contentA->nodeValue;
  67                 }
  68
  69
  70                 if ($contentB && !$contentA) {
  71                         return $contentB->nodeValue;
  72                 }
  73
  74                 if ($contentA && $contentB) {
  75                         return mb_strlen($contentA->nodeValue) > mb_strlen($contentB->nodeValue) ?
  76                                 $contentA->nodeValue : $contentB->nodeValue;
  77                 }
  78         }
  79
  80         function get_description() {
  81                 $summary = $this->elem->getElementsByTagName("description")->item(0);
  82
  83                 if ($summary) {
  84                         return $summary->nodeValue;
  85                 }
  86         }
  87
  88         function get_categories() {
  89                 $categories = $this->elem->getElementsByTagName("category");
  90                 $cats = array();
  91
  92                 foreach ($categories as $cat) {
  93                         array_push($cats, trim($cat->nodeValue));
  94                 }
  95
  96                 $categories = $this->xpath->query("dc:subject", $this->elem);
  97
  98                 foreach ($categories as $cat) {
  99                         array_push($cats, trim($cat->nodeValue));
 100                 }
 101
 102                 return $cats;
 103         }
 104
 105         function get_enclosures() {
 106                 $enclosures = $this->elem->getElementsByTagName("enclosure");
 107
 108                 $encs = array();
 109
 110                 foreach ($enclosures as $enclosure) {
 111                         $enc = new FeedEnclosure();
 112
 113                         $enc->type = $enclosure->getAttribute("type");
 114                         $enc->link = $enclosure->getAttribute("url");
 115                         $enc->length = $enclosure->getAttribute("length");
 116
 117                         array_push($encs, $enc);
 118                 }
 119
 120                 $enclosures = $this->xpath->query("media:content", $this->elem);
 121
 122                 foreach ($enclosures as $enclosure) {
 123                         $enc = new FeedEnclosure();
 124
 125                         $enc->type = $enclosure->getAttribute("type");
 126                         $enc->link = $enclosure->getAttribute("url");
 127                         $enc->length = $enclosure->getAttribute("length");
 128
 129                         $desc = $this->xpath->query("media:description", $enclosure)->item(0);
 130                         if ($desc) $enc->title = strip_tags($desc->nodeValue);
 131
 132                         array_push($encs, $enc);
 133                 }
 134
 135
 136                 $enclosures = $this->xpath->query("media:group", $this->elem);
 137
 138                 foreach ($enclosures as $enclosure) {
 139                         $enc = new FeedEnclosure();
 140
 141                         $content = $this->xpath->query("media:content", $enclosure)->item(0);
 142
 143                         if ($content) {
 144                                 $enc->type = $content->getAttribute("type");
 145                                 $enc->link = $content->getAttribute("url");
 146                                 $enc->length = $content->getAttribute("length");
 147
 148                                 $desc = $this->xpath->query("media:description", $content)->item(0);
 149                                 if ($desc) {
 150                                         $enc->title = strip_tags($desc->nodeValue);
 151                                 } else {
 152                                         $desc = $this->xpath->query("media:description", $enclosure)->item(0);
 153                                         if ($desc) $enc->title = strip_tags($desc->nodeValue);
 154                                 }
 155
 156                                 array_push($encs, $enc);
 157                         }
 158                 }
 159
 160                 $enclosures = $this->xpath->query("media:thumbnail", $this->elem);
 161
 162                 foreach ($enclosures as $enclosure) {
 163                         $enc = new FeedEnclosure();
 164
 165                         $enc->type = "image/generic";
 166                         $enc->link = $enclosure->getAttribute("url");
 167
 168                         array_push($encs, $enc);
 169                 }
 170
 171                 return $encs;
 172         }
 173
 174 }
 175 ?>