functions.php

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