functions.php

   1 <?
   2         require_once 'config.php';
   3
   4         function update_all_feeds($link, $fetch) {
   5
   6                 if (WEB_DEMO_MODE) return;
   7
   8                 pg_query("BEGIN");
   9
  10                 if (!$fetch) {
  11
  12                         $result = pg_query($link, "SELECT feed_url,id FROM ttrss_feeds WHERE
  13                                 last_updated is null OR title = '' OR
  14                                 EXTRACT(EPOCH FROM NOW()) - EXTRACT(EPOCH FROM last_updated) > " .
  15                                 MIN_UPDATE_TIME);
  16
  17                 } else {
  18
  19                         $result = pg_query($link, "SELECT feed_url,id FROM ttrss_feeds");
  20                 }
  21
  22                 while ($line = pg_fetch_assoc($result)) {
  23                         update_rss_feed($link, $line["feed_url"], $line["id"]);
  24                 }
  25
  26                 pg_query("COMMIT");
  27
  28         }
  29
  30         function update_rss_feed($link, $feed_url, $feed) {
  31
  32                 if (WEB_DEMO_MODE) return;
  33
  34                 error_reporting(0);
  35                 $rss = fetch_rss($feed_url);
  36                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
  37
  38                 pg_query("BEGIN");
  39
  40                 if ($rss) {
  41
  42                         $result = pg_query("SELECT title FROM ttrss_feeds WHERE id = '$feed'");
  43
  44                         $registered_title = pg_fetch_result($result, 0, "title");
  45
  46                         if (!$registered_title) {
  47                                 $feed_title = $rss->channel["title"];
  48                                 pg_query("UPDATE ttrss_feeds SET title = '$feed_title' WHERE id = '$feed'");
  49                         }
  50
  51                         foreach ($rss->items as $item) {
  52
  53                                 $entry_guid = $item["id"];
  54
  55                                 if (!$entry_guid) $entry_guid = $item["guid"];
  56                                 if (!$entry_guid) $entry_guid = $item["link"];
  57
  58                                 if (!$entry_guid) continue;
  59
  60                                 $entry_timestamp = "";
  61
  62                                 $rss_2_date = $item['pubdate'];
  63                                 $rss_1_date = $item['dc']['date'];
  64                                 $atom_date = $item['issued'];
  65
  66                                 if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
  67                                 if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
  68                                 if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
  69
  70                                 if ($entry_timestamp == "") {
  71                                         $entry_timestamp = time();
  72                                         $no_orig_date = 'true';
  73                                 } else {
  74                                         $no_orig_date = 'false';
  75                                 }
  76
  77                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
  78
  79                                 $entry_title = $item["title"];
  80                                 $entry_link = $item["link"];
  81
  82                                 if (!$entry_title) continue;
  83                                 if (!$entry_link) continue;
  84
  85                                 $entry_content = $item["description"];
  86                                 if (!$entry_content) $entry_content = $item["content:escaped"];
  87                                 if (!$entry_content) $entry_content = $item["content"];
  88
  89                                 if (!$entry_content) continue;
  90
  91                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
  92
  93                                 $result = pg_query($link, "
  94                                         SELECT
  95                                                 id,last_read,no_orig_date,title,feed_id,content_hash,
  96                                                 EXTRACT(EPOCH FROM updated) as updated_timestamp
  97                                         FROM
  98                                                 ttrss_entries
  99                                         WHERE
 100                                                 guid = '$entry_guid'");
 101
 102                                 if (pg_num_rows($result) == 0) {
 103
 104                                         $entry_content = pg_escape_string($entry_content);
 105                                         $entry_title = pg_escape_string($entry_title);
 106                                         $entry_link = pg_escape_string($entry_link);
 107
 108                                         $query = "INSERT
 109                                                 INTO ttrss_entries
 110                                                         (title,
 111                                                         guid,
 112                                                         link,
 113                                                         updated,
 114                                                         content,
 115                                                         content_hash,
 116                                                         feed_id,
 117                                                         no_orig_date)
 118                                                 VALUES
 119                                                         ('$entry_title',
 120                                                         '$entry_guid',
 121                                                         '$entry_link',
 122                                                         '$entry_timestamp_fmt',
 123                                                         '$entry_content',
 124                                                         '$content_hash',
 125                                                         '$feed',
 126                                                         $no_orig_date)";
 127
 128                                         $result = pg_query($link, $query);
 129
 130                                 } else {
 131
 132                                         $orig_entry_id = pg_fetch_result($result, 0, "id");
 133                                         $orig_feed_id = pg_fetch_result($result, 0, "feed_id");
 134
 135                                         if ($orig_feed_id != $feed) {
 136 //                                              print "<p>Update from different feed ($orig_feed_id, $feed): $entry_guid [$entry_title]";
 137                                                 continue;
 138                                         }
 139
 140                                         $orig_timestamp = pg_fetch_result($result, 0, "updated_timestamp");
 141                                         $orig_content_hash = pg_fetch_result($result, 0, "content_hash");
 142                                         $orig_last_read = pg_fetch_result($result, 0, "last_read");
 143                                         $orig_no_orig_date = pg_fetch_result($result, 0, "no_orig_date");
 144                                         $orig_title = pg_fetch_result($result, 0, "title");
 145
 146                                         if ($orig_title != $entry_title) {
 147                                                 $last_read_qpart = 'last_read = null,';
 148                                         }
 149
 150                                         if ($orig_content_hash != $content_hash) {
 151                                                 $last_read_qpart = 'last_read = null,';
 152                                         }
 153
 154 //                                      if ($orig_timestamp < $entry_timestamp) {
 155 //                                              $last_read_qpart = 'last_read = null,';
 156 //                                      }
 157
 158                                         $entry_content = pg_escape_string($entry_content);
 159                                         $entry_title = pg_escape_string($entry_title);
 160                                         $entry_link = pg_escape_string($entry_link);
 161
 162                                         $query = "UPDATE ttrss_entries
 163                                                 SET
 164                                                         $last_read_qpart
 165                                                         title = '$entry_title',
 166                                                         link = '$entry_link',
 167                                                         updated = '$entry_timestamp_fmt',
 168                                                         content = '$entry_content',
 169                                                         content_hash = '$content_hash'
 170                                                 WHERE
 171                                                         id = '$orig_entry_id'";
 172
 173                                         $result = pg_query($link, $query);
 174
 175                                 }
 176                         }
 177
 178                         if ($result) {
 179                                 $result = pg_query($link, "UPDATE ttrss_feeds SET last_updated = NOW()");
 180                         }
 181
 182                 }
 183
 184                 pg_query("COMMIT");
 185
 186         }
 187
 188
 189
 190
 191 ?>