functions.php

   1 <?
   2         require_once 'config.php';
   3
   4         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
   5
   6         function purge_old_posts($link) {
   7                 if (PURGE_OLD_DAYS > 0) {
   8                         $result = db_query($link, "DELETE FROM ttrss_entries WHERE
   9                                 marked = false AND
  10                                 date_entered < NOW() - INTERVAL '".PURGE_OLD_DAYS." days'");
  11                 }
  12         }
  13
  14         function update_all_feeds($link, $fetch) {
  15
  16                 if (WEB_DEMO_MODE) return;
  17
  18                 db_query($link, "BEGIN");
  19
  20                 if (!$fetch) {
  21
  22                         $result = db_query($link, "SELECT feed_url,id FROM ttrss_feeds WHERE
  23                                 last_updated is null OR title = '' OR
  24                                 EXTRACT(EPOCH FROM NOW()) - EXTRACT(EPOCH FROM last_updated) > " .
  25                                 MIN_UPDATE_TIME);
  26
  27                 } else {
  28
  29                         $result = db_query($link, "SELECT feed_url,id FROM ttrss_feeds");
  30                 }
  31
  32                 while ($line = db_fetch_assoc($result)) {
  33                         update_rss_feed($link, $line["feed_url"], $line["id"]);
  34                 }
  35
  36                 purge_old_posts($link);
  37
  38                 db_query($link, "COMMIT");
  39
  40         }
  41
  42         function check_feed_favicon($feed_url, $feed) {
  43                 $feed_url = str_replace("http://", "", $feed_url);
  44                 $feed_url = preg_replace("/\/.*$/", "", $feed_url);
  45
  46                 $icon_url = "http://$feed_url/favicon.ico";
  47                 $icon_file = ICONS_DIR . "/$feed.ico";
  48
  49                 if (!file_exists($icon_file)) {
  50
  51                         error_reporting(0);
  52                         $r = fopen($icon_url, "r");
  53                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
  54
  55                         if ($r) {
  56                                 $tmpfname = tempnam("/tmp", "ttrssicon");
  57
  58                                 $t = fopen($tmpfname, "w");
  59
  60                                 while (!feof($r)) {
  61                                         $buf = fread($r, 16384);
  62                                         fwrite($t, $buf);
  63                                 }
  64
  65                                 fclose($r);
  66                                 fclose($t);
  67
  68                                 error_reporting(0);
  69                                 if (!rename($tmpfname, $icon_file)) {
  70                                         unlink($tmpfname);
  71                                 }
  72                                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
  73
  74                         }
  75                 }
  76         }
  77
  78         function update_rss_feed($link, $feed_url, $feed) {
  79
  80                 if (WEB_DEMO_MODE) return;
  81
  82                 error_reporting(0);
  83                 $rss = fetch_rss($feed_url);
  84                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
  85
  86                 db_query($link, "BEGIN");
  87
  88                 $feed = db_escape_string($feed);
  89
  90                 if ($rss) {
  91
  92                         if (ENABLE_FEED_ICONS) {
  93                                 check_feed_favicon($feed_url, $feed);
  94                         }
  95
  96                         $result = db_query($link, "SELECT title,icon_url FROM ttrss_feeds WHERE id = '$feed'");
  97
  98                         $registered_title = db_fetch_result($result, 0, "title");
  99                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 100
 101                         if (!$registered_title) {
 102                                 $feed_title = $rss->channel["title"];
 103                                 db_query($link, "UPDATE ttrss_feeds SET title = '$feed_title' WHERE id = '$feed'");
 104                         }
 105
 106 //                      print "I: " . $rss->channel["image"]["url"];
 107
 108                         $icon_url = $rss->image["url"];
 109
 110                         if ($icon_url && !$orig_icon_url) {
 111                                 $icon_url = db_escape_string($icon_url);
 112                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 113                         }
 114
 115
 116                         $filters = array();
 117
 118                         $result = db_query($link, "SELECT reg_exp,
 119                                 (SELECT name FROM ttrss_filter_types
 120                                         WHERE id = filter_type) as name
 121                                 FROM ttrss_filters");
 122
 123                         while ($line = db_fetch_assoc($result)) {
 124                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
 125                                 array_push($filters[$line["name"]], $line["reg_exp"]);
 126                         }
 127
 128                         foreach ($rss->items as $item) {
 129
 130                                 $entry_guid = $item["id"];
 131
 132                                 if (!$entry_guid) $entry_guid = $item["guid"];
 133                                 if (!$entry_guid) $entry_guid = $item["link"];
 134
 135                                 if (!$entry_guid) continue;
 136
 137                                 $entry_timestamp = "";
 138
 139                                 $rss_2_date = $item['pubdate'];
 140                                 $rss_1_date = $item['dc']['date'];
 141                                 $atom_date = $item['issued'];
 142
 143                                 if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 144                                 if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 145                                 if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 146
 147                                 if ($entry_timestamp == "") {
 148                                         $entry_timestamp = time();
 149                                         $no_orig_date = 'true';
 150                                 } else {
 151                                         $no_orig_date = 'false';
 152                                 }
 153
 154                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 155
 156                                 $entry_title = $item["title"];
 157                                 $entry_link = $item["link"];
 158
 159                                 if (!$entry_title) continue;
 160                                 if (!$entry_link) continue;
 161
 162                                 $entry_content = $item["description"];
 163                                 if (!$entry_content) $entry_content = $item["content:escaped"];
 164                                 if (!$entry_content) $entry_content = $item["content"];
 165
 166 //                              if (!$entry_content) continue;
 167
 168                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 169
 170                                 $entry_comments = $item["comments"];
 171
 172                                 $entry_guid = db_escape_string($entry_guid);
 173
 174                                 if (DB_TYPE == "pgsql") {
 175                                         $extract_ts_qpart = ",EXTRACT(EPOCH FROM updated) as updated_timestamp";
 176                                 }
 177
 178                                 $result = db_query($link, "
 179                                         SELECT
 180                                                 id,last_read,no_orig_date,title,feed_id,content_hash
 181                                                 $extract_ts_qpart
 182                                         FROM
 183                                                 ttrss_entries
 184                                         WHERE
 185                                                 guid = '$entry_guid'");
 186
 187                                 if (db_num_rows($result) == 0) {
 188
 189                                         error_reporting(0);
 190                                         if (is_filtered($entry_title, $entry_content, $filters)) {
 191                                                 continue;
 192                                         }
 193                                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
 194
 195                                         //$entry_guid = db_escape_string($entry_guid);
 196                                         $entry_content = db_escape_string($entry_content);
 197                                         $entry_title = db_escape_string($entry_title);
 198                                         $entry_link = db_escape_string($entry_link);
 199                                         $entry_comments = db_escape_string($entry_comments);
 200
 201                                         $query = "INSERT
 202                                                 INTO ttrss_entries
 203                                                         (title,
 204                                                         guid,
 205                                                         link,
 206                                                         updated,
 207                                                         content,
 208                                                         content_hash,
 209                                                         feed_id,
 210                                                         comments,
 211                                                         no_orig_date)
 212                                                 VALUES
 213                                                         ('$entry_title',
 214                                                         '$entry_guid',
 215                                                         '$entry_link',
 216                                                         '$entry_timestamp_fmt',
 217                                                         '$entry_content',
 218                                                         '$content_hash',
 219                                                         '$feed',
 220                                                         '$entry_comments',
 221                                                         $no_orig_date)";
 222
 223                                         $result = db_query($link, $query);
 224
 225                                 } else {
 226
 227                                         $orig_entry_id = db_fetch_result($result, 0, "id");
 228                                         $orig_feed_id = db_fetch_result($result, 0, "feed_id");
 229
 230                                         if ($orig_feed_id != $feed) {
 231 //                                              print "<p>Update from different feed ($orig_feed_id, $feed): $entry_guid [$entry_title]";
 232                                                 continue;
 233                                         }
 234
 235                                         $entry_is_modified = false;
 236
 237                                         $orig_timestamp = db_fetch_result($result, 0, "updated_timestamp");
 238                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
 239                                         $orig_last_read = db_fetch_result($result, 0, "last_read");
 240                                         $orig_no_orig_date = db_fetch_result($result, 0, "no_orig_date");
 241                                         $orig_title = db_fetch_result($result, 0, "title");
 242
 243                                         $last_read_qpart = "";
 244
 245                                         if ($orig_content_hash != $content_hash) {
 246                                                 if (UPDATE_POST_ON_CHECKSUM_CHANGE) {
 247                                                         $last_read_qpart = 'last_read = null,';
 248                                                 }
 249                                                 $entry_is_modified = true;
 250                                         }
 251
 252                                         if ($orig_title != $entry_title) {
 253                                                 $entry_is_modified = true;
 254                                         }
 255
 256                                         if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
 257                                                 $entry_is_modified = true;
 258                                         }
 259
 260                                         if ($entry_is_modified) {
 261
 262                                                 $entry_comments = db_escape_string($entry_comments);
 263                                                 $entry_content = db_escape_string($entry_content);
 264                                                 $entry_title = db_escape_string($entry_title);
 265                                                 $entry_link = db_escape_string($entry_link);
 266
 267                                                 $query = "UPDATE ttrss_entries
 268                                                         SET
 269                                                                 $last_read_qpart
 270                                                                 title = '$entry_title',
 271                                                                 link = '$entry_link',
 272                                                                 updated = '$entry_timestamp_fmt',
 273                                                                 content = '$entry_content',
 274                                                                 comments = '$entry_comments',
 275                                                                 content_hash = '$content_hash'
 276                                                         WHERE
 277                                                                 id = '$orig_entry_id'";
 278
 279                                                 $result = db_query($link, $query);
 280                                         }
 281                                 }
 282                         }
 283
 284                         if ($result) {
 285                                 $result = db_query($link, "UPDATE ttrss_feeds SET last_updated = NOW()");
 286                         }
 287
 288                 }
 289
 290                 db_query($link, "COMMIT");
 291
 292         }
 293
 294         function print_select($id, $default, $values, $attributes = "") {
 295                 print "<select id=\"$id\" $attributes>";
 296                 foreach ($values as $v) {
 297                         if ($v == $default)
 298                                 $sel = " selected";
 299                          else
 300                                 $sel = "";
 301
 302                         print "<option$sel>$v</option>";
 303                 }
 304                 print "</select>";
 305         }
 306
 307         function is_filtered($title, $content, $filters) {
 308
 309                 if ($filters["title"]) {
 310                         foreach ($filters["title"] as $title_filter) {
 311                                 if (preg_match("/$title_filter/i", $title))
 312                                         return true;
 313                         }
 314                 }
 315
 316                 if ($filters["content"]) {
 317                         foreach ($filters["content"] as $content_filter) {
 318                                 if (preg_match("/$content_filter/i", $content))
 319                                         return true;
 320                         }
 321                 }
 322
 323                 if ($filters["both"]) {
 324                         foreach ($filters["both"] as $filter) {
 325                                 if (preg_match("/$filter/i", $title) || preg_match("/$filter/i", $content))
 326                                         return true;
 327                         }
 328                 }
 329
 330                 return false;
 331         }
 332
 333 ?>