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