functions.php

   1 <?
   2         require_once 'config.php';
   3
   4         function update_all_feeds($link, $fetch) {
   5
   6                 if (!$fetch) {
   7
   8                         $result = pg_query($link, "SELECT feed_url,id FROM ttrss_feeds WHERE
   9                                 last_updated is null OR title = '' OR
  10                                 EXTRACT(EPOCH FROM NOW()) - EXTRACT(EPOCH FROM last_updated) > " .
  11                                 MIN_UPDATE_TIME);
  12
  13                 } else {
  14
  15                         $result = pg_query($link, "SELECT feed_url,id FROM ttrss_feeds");
  16                 }
  17
  18                 $num_unread = 0;
  19
  20                 while ($line = pg_fetch_assoc($result)) {
  21                         $num_unread += update_rss_feed($link, $line["feed_url"], $line["id"]);
  22                 }
  23
  24         }
  25
  26         function update_rss_feed($link, $feed_url, $feed) {
  27
  28                 $rss = fetch_rss($feed_url);
  29
  30                 $num_unread = 0;
  31
  32                 if ($rss) {
  33
  34                         $result = pg_query("SELECT title FROM ttrss_feeds WHERE id = '$feed'");
  35
  36                         $registered_title = pg_fetch_result($result, 0, "title");
  37
  38                         if (!$registered_title) {
  39
  40                                 $feed_title = $rss->channel["title"];
  41                                 pg_query("UPDATE ttrss_feeds SET title = '$feed_title' WHERE id = '$feed'");
  42                         }
  43
  44                         foreach ($rss->items as $item) {
  45
  46                                 $entry_guid = $item["id"];
  47
  48                                 if (!$entry_guid) $entry_guid = $item["guid"];
  49                                 if (!$entry_guid) $entry_guid = $item["link"];
  50
  51                                 $entry_timestamp = "";
  52
  53                                 $rss_2_date = $item['pubdate'];
  54                                 $rss_1_date = $item['dc']['date'];
  55                                 $atom_date = $item['issued'];
  56
  57                                 if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
  58                                 if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
  59                                 if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
  60                                 if ($entry_timestamp == "") $entry_timestamp = time();
  61
  62                                 $entry_title = $item["title"];
  63                                 $entry_link = $item["link"];
  64
  65                                 if (!$entry_title) continue;
  66                                 if (!$entry_link) continue;
  67
  68                                 $entry_content = $item["description"];
  69                                 if (!$entry_content) $entry_content = $item["content"];
  70
  71                                 $entry_content = pg_escape_string($entry_content);
  72                                 $entry_title = pg_escape_string($entry_title);
  73
  74                                 $content_md5 = md5($entry_content);
  75
  76                                 $result = pg_query($link, "
  77                                         SELECT
  78                                                 id,unread,md5_hash
  79                                         FROM
  80                                                 ttrss_entries
  81                                         WHERE
  82                                                 guid = '$entry_guid' OR md5_hash = '$content_md5'");
  83
  84                                 if (pg_num_rows($result) == 0) {
  85
  86                                         $entry_timestamp = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
  87
  88                                         $query = "INSERT INTO ttrss_entries
  89                                                         (title, guid, link, updated, content, feed_id, md5_hash)
  90                                                 VALUES
  91                                                         ('$entry_title', '$entry_guid', '$entry_link',
  92                                                                 '$entry_timestamp', '$entry_content', '$feed',
  93                                                                 '$content_md5')";
  94
  95                                         $result = pg_query($link, $query);
  96
  97                                         if ($result) ++$num_unread;
  98
  99                                 } else {
 100
 101                                         $entry_id = pg_fetch_result($result, 0, "id");
 102                                         $entry_timestamp = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 103
 104                                         $unread = pg_fetch_result($result, 0, "unread");
 105                                         $md5_hash = pg_fetch_result($result, 0, "md5_hash");
 106
 107                                         if ($md5_hash != $content_md5 && CONTENT_CHECK_MD5)
 108                                                 $unread = "true";
 109
 110                                         if ($unread || !CONTENT_CHECK_MD5) {
 111                                                 $updated_query_part = "updated = '$entry_timestamp',";
 112                                         }
 113
 114                                         $query = "UPDATE ttrss_entries
 115                                                 SET
 116                                                         title ='$entry_title',
 117                                                         link = '$entry_link',
 118                                                         $updated_query_part
 119                                                         content = '$entry_content',
 120                                                         md5_hash = '$content_md5',
 121                                                         unread = '$unread'
 122                                                 WHERE
 123                                                         id = '$entry_id'";
 124
 125                                         $result = pg_query($link, $query);
 126
 127                                         if ($result) ++$num_unread;
 128
 129                                 }
 130
 131                         }
 132
 133                         if ($result) {
 134                                 $result = pg_query($link, "UPDATE ttrss_feeds SET last_updated = NOW()");
 135                         }
 136
 137                 }
 138
 139         }
 140
 141
 142
 143
 144 ?>