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
   9                         if (DB_TYPE == "pgsql") {
  10                                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
  11                                         marked = false AND
  12                                         date_entered < NOW() - INTERVAL '".PURGE_OLD_DAYS." days'");
  13                         } else {
  14                                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
  15                                         marked = false AND
  16                                         date_entered < DATE_SUB(NOW(), INTERVAL ".PURGE_OLD_DAYS." DAY)");
  17                         }
  18                 }
  19         }
  20
  21         function update_all_feeds($link, $fetch) {
  22
  23                 if (WEB_DEMO_MODE) return;
  24
  25                 db_query($link, "BEGIN");
  26
  27                 $result = db_query($link, "SELECT feed_url,id,
  28                         substring(last_updated,1,19) as last_updated,
  29                         update_interval FROM ttrss_feeds");
  30
  31                 while ($line = db_fetch_assoc($result)) {
  32                         $upd_intl = $line["update_interval"];
  33
  34                         if (!$upd_intl) $upd_intl = MIN_UPDATE_INTERVAL;
  35
  36                         if (!$line["last_updated"] ||
  37                                 time() - strtotime($line["last_updated"]) > ($upd_intl * 60)) {
  38
  39                                 update_rss_feed($link, $line["feed_url"], $line["id"]);
  40                         }
  41                 }
  42
  43                 purge_old_posts($link);
  44
  45                 db_query($link, "COMMIT");
  46
  47         }
  48
  49         function check_feed_favicon($feed_url, $feed) {
  50                 $feed_url = str_replace("http://", "", $feed_url);
  51                 $feed_url = preg_replace("/\/.*$/", "", $feed_url);
  52
  53                 $icon_url = "http://$feed_url/favicon.ico";
  54                 $icon_file = ICONS_DIR . "/$feed.ico";
  55
  56                 if (!file_exists($icon_file)) {
  57
  58                         error_reporting(0);
  59                         $r = fopen($icon_url, "r");
  60                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
  61
  62                         if ($r) {
  63                                 $tmpfname = tempnam("/tmp", "ttrssicon");
  64
  65                                 $t = fopen($tmpfname, "w");
  66
  67                                 while (!feof($r)) {
  68                                         $buf = fread($r, 16384);
  69                                         fwrite($t, $buf);
  70                                 }
  71
  72                                 fclose($r);
  73                                 fclose($t);
  74
  75                                 error_reporting(0);
  76                                 if (!rename($tmpfname, $icon_file)) {
  77                                         unlink($tmpfname);
  78                                 }
  79                                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
  80
  81                         }
  82                 }
  83         }
  84
  85         function update_rss_feed($link, $feed_url, $feed) {
  86
  87                 if (WEB_DEMO_MODE) return;
  88
  89                 error_reporting(0);
  90                 $rss = fetch_rss($feed_url);
  91                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
  92
  93                 db_query($link, "BEGIN");
  94
  95                 $feed = db_escape_string($feed);
  96
  97                 if ($rss) {
  98
  99                         if (ENABLE_FEED_ICONS) {
 100                                 check_feed_favicon($feed_url, $feed);
 101                         }
 102
 103                         $result = db_query($link, "SELECT title,icon_url FROM ttrss_feeds WHERE id = '$feed'");
 104
 105                         $registered_title = db_fetch_result($result, 0, "title");
 106                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 107
 108                         if (!$registered_title) {
 109                                 $feed_title = db_escape_string($rss->channel["title"]);
 110                                 db_query($link, "UPDATE ttrss_feeds SET title = '$feed_title' WHERE id = '$feed'");
 111                         }
 112
 113 //                      print "I: " . $rss->channel["image"]["url"];
 114
 115                         $icon_url = $rss->image["url"];
 116
 117                         if ($icon_url && !$orig_icon_url) {
 118                                 $icon_url = db_escape_string($icon_url);
 119                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 120                         }
 121
 122
 123                         $filters = array();
 124
 125                         $result = db_query($link, "SELECT reg_exp,
 126                                 (SELECT name FROM ttrss_filter_types
 127                                         WHERE id = filter_type) as name
 128                                 FROM ttrss_filters");
 129
 130                         while ($line = db_fetch_assoc($result)) {
 131                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
 132                                 array_push($filters[$line["name"]], $line["reg_exp"]);
 133                         }
 134
 135                         foreach ($rss->items as $item) {
 136
 137                                 $entry_guid = $item["id"];
 138
 139                                 if (!$entry_guid) $entry_guid = $item["guid"];
 140                                 if (!$entry_guid) $entry_guid = $item["link"];
 141
 142                                 if (!$entry_guid) continue;
 143
 144                                 $entry_timestamp = "";
 145
 146                                 $rss_2_date = $item['pubdate'];
 147                                 $rss_1_date = $item['dc']['date'];
 148                                 $atom_date = $item['issued'];
 149
 150                                 if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 151                                 if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 152                                 if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 153
 154                                 if ($entry_timestamp == "") {
 155                                         $entry_timestamp = time();
 156                                         $no_orig_date = 'true';
 157                                 } else {
 158                                         $no_orig_date = 'false';
 159                                 }
 160
 161                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 162
 163                                 $entry_title = $item["title"];
 164                                 $entry_link = $item["link"];
 165
 166                                 if (!$entry_title) continue;
 167                                 if (!$entry_link) continue;
 168
 169                                 $entry_content = $item["content:escaped"];
 170
 171                                 if (!$entry_content) $entry_content = $item["content:encoded"];
 172                                 if (!$entry_content) $entry_content = $item["content"];
 173                                 if (!$entry_content) $entry_content = $item["description"];
 174
 175 //                              if (!$entry_content) continue;
 176
 177                                 // WTF
 178                                 if (is_array($entry_content)) {
 179                                         $entry_content = $entry_content["encoded"];
 180                                         if (!$entry_content) $entry_content = $entry_content["escaped"];
 181                                 }
 182
 183 //                              print_r($item);
 184 //                              print_r($entry_content);
 185
 186                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 187
 188                                 $entry_comments = $item["comments"];
 189
 190                                 $entry_guid = db_escape_string($entry_guid);
 191
 192                                 if (DB_TYPE == "pgsql") {
 193                                         $extract_ts_qpart = ",EXTRACT(EPOCH FROM updated) as updated_timestamp";
 194                                 }
 195
 196                                 $result = db_query($link, "
 197                                         SELECT
 198                                                 id,last_read,no_orig_date,title,feed_id,content_hash
 199                                                 $extract_ts_qpart
 200                                         FROM
 201                                                 ttrss_entries
 202                                         WHERE
 203                                                 guid = '$entry_guid'");
 204
 205 //                              print db_num_rows($result) . "$entry_guid<br/>";
 206
 207                                 if (db_num_rows($result) == 0) {
 208
 209                                         error_reporting(0);
 210                                         if (is_filtered($entry_title, $entry_content, $filters)) {
 211                                                 continue;
 212                                         }
 213                                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
 214
 215                                         //$entry_guid = db_escape_string($entry_guid);
 216                                         $entry_content = db_escape_string($entry_content);
 217                                         $entry_title = db_escape_string($entry_title);
 218                                         $entry_link = db_escape_string($entry_link);
 219                                         $entry_comments = db_escape_string($entry_comments);
 220
 221                                         $query = "INSERT
 222                                                 INTO ttrss_entries
 223                                                         (title,
 224                                                         guid,
 225                                                         link,
 226                                                         updated,
 227                                                         content,
 228                                                         content_hash,
 229                                                         feed_id,
 230                                                         comments,
 231                                                         no_orig_date,
 232                                                         date_entered)
 233                                                 VALUES
 234                                                         ('$entry_title',
 235                                                         '$entry_guid',
 236                                                         '$entry_link',
 237                                                         '$entry_timestamp_fmt',
 238                                                         '$entry_content',
 239                                                         '$content_hash',
 240                                                         '$feed',
 241                                                         '$entry_comments',
 242                                                         $no_orig_date,
 243                                                         NOW())";
 244
 245                                         $result = db_query($link, $query);
 246
 247                                 } else {
 248
 249                                         $orig_entry_id = db_fetch_result($result, 0, "id");
 250                                         $orig_feed_id = db_fetch_result($result, 0, "feed_id");
 251
 252                                         if ($orig_feed_id != $feed) {
 253 //                                              print "<p>Update from different feed ($orig_feed_id, $feed): $entry_guid [$entry_title]";
 254                                                 continue;
 255                                         }
 256
 257                                         $entry_is_modified = false;
 258
 259                                         $orig_timestamp = db_fetch_result($result, 0, "updated_timestamp");
 260                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
 261                                         $orig_last_read = db_fetch_result($result, 0, "last_read");
 262                                         $orig_no_orig_date = db_fetch_result($result, 0, "no_orig_date");
 263                                         $orig_title = db_fetch_result($result, 0, "title");
 264
 265                                         $last_read_qpart = "";
 266
 267                                         if ($orig_content_hash != $content_hash) {
 268                                                 if (UPDATE_POST_ON_CHECKSUM_CHANGE) {
 269                                                         $last_read_qpart = 'last_read = null,';
 270                                                 }
 271                                                 $entry_is_modified = true;
 272                                         }
 273
 274                                         if ($orig_title != $entry_title) {
 275                                                 $entry_is_modified = true;
 276                                         }
 277
 278                                         if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
 279                                                 $entry_is_modified = true;
 280                                         }
 281
 282                                         if ($entry_is_modified) {
 283
 284                                                 $entry_comments = db_escape_string($entry_comments);
 285                                                 $entry_content = db_escape_string($entry_content);
 286                                                 $entry_title = db_escape_string($entry_title);
 287                                                 $entry_link = db_escape_string($entry_link);
 288
 289                                                 $query = "UPDATE ttrss_entries
 290                                                         SET
 291                                                                 $last_read_qpart
 292                                                                 title = '$entry_title',
 293                                                                 link = '$entry_link',
 294                                                                 updated = '$entry_timestamp_fmt',
 295                                                                 content = '$entry_content',
 296                                                                 comments = '$entry_comments',
 297                                                                 content_hash = '$content_hash'
 298                                                         WHERE
 299                                                                 id = '$orig_entry_id'";
 300
 301                                                 $result = db_query($link, $query);
 302                                         }
 303                                 }
 304
 305                                 /* taaaags */
 306                                 // <a href="http://technorati.com/tag/Xorg" rel="tag">Xorg</a>, //
 307
 308                                 $entry_tags = null;
 309
 310                                 preg_match_all("/<a.*?rel=.tag.*?>([^>]+)<\/a>/i", $entry_content,
 311                                         $entry_tags);
 312
 313                                 $entry_tags = $entry_tags[1];
 314
 315                                 if (count($entry_tags) > 0) {
 316
 317                                         $result = db_query($link, "SELECT id FROM ttrss_entries
 318                                                 WHERE guid = '$entry_guid'");
 319
 320                                         if (!$result || db_num_rows($result) != 1) {
 321                                                 return;
 322                                         }
 323
 324                                         $entry_id = db_fetch_result($result, 0, "id");
 325
 326                                         foreach ($entry_tags as $tag) {
 327                                                 $tag = db_escape_string(strtolower($tag));
 328
 329                                                 $result = db_query($link, "SELECT id FROM ttrss_tags
 330                                                         WHERE tag_name = '$tag' AND post_id = '$entry_id' LIMIT 1");
 331
 332                                                 if ($result && db_num_rows($result) == 0) {
 333
 334 //                                                      print "tagging $entry_id as $tag<br>";
 335
 336                                                         db_query($link, "INSERT INTO ttrss_tags (tag_name,post_id)
 337                                                                 VALUES ('$tag', '$entry_id')");
 338                                                 }
 339                                         }
 340                                 }
 341                         }
 342
 343                         db_query($link, "UPDATE ttrss_feeds SET last_updated = NOW()");
 344
 345                 }
 346
 347                 db_query($link, "COMMIT");
 348
 349         }
 350
 351         function print_select($id, $default, $values, $attributes = "") {
 352                 print "<select id=\"$id\" $attributes>";
 353                 foreach ($values as $v) {
 354                         if ($v == $default)
 355                                 $sel = " selected";
 356                          else
 357                                 $sel = "";
 358
 359                         print "<option$sel>$v</option>";
 360                 }
 361                 print "</select>";
 362         }
 363
 364         function is_filtered($title, $content, $filters) {
 365
 366                 if ($filters["title"]) {
 367                         foreach ($filters["title"] as $title_filter) {
 368                                 if (preg_match("/$title_filter/i", $title))
 369                                         return true;
 370                         }
 371                 }
 372
 373                 if ($filters["content"]) {
 374                         foreach ($filters["content"] as $content_filter) {
 375                                 if (preg_match("/$content_filter/i", $content))
 376                                         return true;
 377                         }
 378                 }
 379
 380                 if ($filters["both"]) {
 381                         foreach ($filters["both"] as $filter) {
 382                                 if (preg_match("/$filter/i", $title) || preg_match("/$filter/i", $content))
 383                                         return true;
 384                         }
 385                 }
 386
 387                 return false;
 388         }
 389
 390         function printFeedEntry($feed_id, $class, $feed_title, $unread, $icon_file) {
 391
 392                 if (file_exists($icon_file) && filesize($icon_file) > 0) {
 393                                 $feed_icon = "<img src=\"$icon_file\">";
 394                 } else {
 395                         $feed_icon = "<img src=\"images/blank_icon.gif\">";
 396                 }
 397
 398                 $feed = "<a href=\"javascript:viewfeed('$feed_id', 0);\">$feed_title</a>";
 399
 400                 print "<li id=\"FEEDR-$feed_id\" class=\"$class\">";
 401                 if (ENABLE_FEED_ICONS) {
 402                         print "$feed_icon";
 403                 }
 404
 405                 print "<span id=\"FEEDN-$feed_id\">$feed</span>";
 406
 407                 if ($unread != 0) {
 408                         $fctr_class = "";
 409                 } else {
 410                         $fctr_class = "class=\"invisible\"";
 411                 }
 412
 413                 print "<span $fctr_class id=\"FEEDCTR-$feed_id\">
 414                          (<span id=\"FEEDU-$feed_id\">$unread</span>)</span>";
 415
 416                 print "</li>";
 417
 418         }
 419
 420 ?>