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 == "") $entry_timestamp = 0;
  61
  62                                 if (!$entry_timestamp) continue;
  63
  64                                 $entry_title = $item["title"];
  65                                 $entry_link = $item["link"];
  66
  67                                 if (!$entry_title) continue;
  68                                 if (!$entry_link) continue;
  69
  70                                 $entry_content = $item["description"];
  71                                 if (!$entry_content) $entry_content = $item["content"];
  72
  73                                 $entry_content = pg_escape_string($entry_content);
  74                                 $entry_title = pg_escape_string($entry_title);
  75
  76                                 $content_md5 = md5($entry_content);
  77
  78                                 $result = pg_query($link, "
  79                                         SELECT
  80                                                 id,unread,md5_hash,
  81                                                 EXTRACT(EPOCH FROM updated) as updated_timestamp
  82                                         FROM
  83                                                 ttrss_entries
  84                                         WHERE
  85                                                 guid = '$entry_guid' OR md5_hash = '$content_md5'");
  86
  87                                 if (pg_num_rows($result) == 0) {
  88
  89                                         $entry_timestamp = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
  90
  91                                         $query = "INSERT INTO ttrss_entries
  92                                                         (title, guid, link, updated, content, feed_id, md5_hash)
  93                                                 VALUES
  94                                                         ('$entry_title', '$entry_guid', '$entry_link',
  95                                                                 '$entry_timestamp', '$entry_content', '$feed',
  96                                                                 '$content_md5')";
  97
  98                                         $result = pg_query($link, $query);
  99
 100                                         if ($result) ++$num_unread;
 101
 102                                 } else {
 103
 104                                         $entry_id = pg_fetch_result($result, 0, "id");
 105                                         $updated_timestamp = pg_fetch_result($result, 0, "updated_timestamp");
 106                                         $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 107
 108                                         $unread = pg_fetch_result($result, 0, "unread");
 109                                         $md5_hash = pg_fetch_result($result, 0, "md5_hash");
 110
 111                                         if ($md5_hash != $content_md5 && CONTENT_CHECK_MD5)
 112                                                 $unread = "true";
 113
 114 //                                      if ($unread || !CONTENT_CHECK_MD5) {
 115 //                                              $updated_query_part = "updated = '$entry_timestamp',";
 116 //                                      }
 117
 118 //                                      if ($updated_timestamp > $entry_timestamp) {
 119 //                                              $unread = "true";
 120 //                                              print "$updated_timestamp : $entry_timestamp<br>";
 121 //                                      }
 122
 123                                         $query = "UPDATE ttrss_entries
 124                                                 SET
 125                                                         title ='$entry_title',
 126                                                         link = '$entry_link',
 127                                                         updated = '$entry_timestamp_fmt',
 128                                                         content = '$entry_content',
 129                                                         md5_hash = '$content_md5',
 130                                                         unread = '$unread'
 131                                                 WHERE
 132                                                         id = '$entry_id'";
 133
 134                                         $result = pg_query($link, $query);
 135
 136                                         if ($result) ++$num_unread;
 137
 138                                 }
 139
 140                         }
 141
 142                         if ($result) {
 143                                 $result = pg_query($link, "UPDATE ttrss_feeds SET last_updated = NOW()");
 144                         }
 145
 146                 }
 147
 148         }
 149
 150
 151
 152
 153 ?>