functions.php

   1 <?
   2         session_start();
   3
   4         $_SESSION["uid"] = 1; // FIXME: placeholder
   5
   6         require_once 'config.php';
   7         require_once 'db-prefs.php';
   8
   9         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
  10
  11         function purge_old_posts($link) {
  12
  13                 $user_id = $_SESSION["uid"];
  14
  15                 $result = db_query($link, "SELECT id,purge_interval FROM ttrss_feeds
  16                         WHERE owner_uid = '$user_id'");
  17
  18                 while ($line = db_fetch_assoc($result)) {
  19
  20                         $feed_id = $line["id"];
  21                         $purge_interval = $line["purge_interval"];
  22
  23                         if ($purge_interval == 0) $purge_interval = get_pref($link, 'PURGE_OLD_DAYS');
  24
  25                         if ($purge_interval > 0) {
  26
  27                                 if (DB_TYPE == "pgsql") {
  28                                         db_query($link, "DELETE FROM ttrss_entries WHERE
  29                                                 marked = false AND feed_id = '$feed_id' AND
  30                                                 date_entered < NOW() - INTERVAL '$purge_interval days'");
  31                                 } else {
  32                                         db_query($link, "DELETE FROM ttrss_entries WHERE
  33                                                 marked = false AND feed_id = '$feed_id' AND
  34                                                 date_entered < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
  35                                 }
  36                         }
  37                 }
  38         }
  39
  40         function update_all_feeds($link, $fetch) {
  41
  42                 if (WEB_DEMO_MODE) return;
  43
  44                 if (get_pref($link, 'DAEMON_REFRESH_ONLY')) {
  45                         if (!$_GET["daemon"]) {
  46                                 return;
  47                         }
  48                 }
  49
  50                 db_query($link, "BEGIN");
  51
  52                 $user_id = $_SESSION["uid"];
  53
  54                 $result = db_query($link, "SELECT feed_url,id,
  55                         substring(last_updated,1,19) as last_updated,
  56                         update_interval FROM ttrss_feeds WHERE owner_uid = '$user_id'");
  57
  58                 while ($line = db_fetch_assoc($result)) {
  59                         $upd_intl = $line["update_interval"];
  60
  61                         if (!$upd_intl || $upd_intl == 0) {
  62                                 $upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL');
  63                         }
  64
  65                         if (!$line["last_updated"] ||
  66                                 time() - strtotime($line["last_updated"]) > ($upd_intl * 60)) {
  67
  68                                 update_rss_feed($link, $line["feed_url"], $line["id"]);
  69                         }
  70                 }
  71
  72                 purge_old_posts($link);
  73
  74                 db_query($link, "COMMIT");
  75
  76         }
  77
  78         function check_feed_favicon($feed_url, $feed, $link) {
  79                 $feed_url = str_replace("http://", "", $feed_url);
  80                 $feed_url = preg_replace("/\/.*$/", "", $feed_url);
  81
  82                 $icon_url = "http://$feed_url/favicon.ico";
  83                 $icon_file = get_pref($link, 'ICONS_DIR') . "/$feed.ico";
  84
  85                 if (!file_exists($icon_file)) {
  86
  87                         error_reporting(0);
  88                         $r = fopen($icon_url, "r");
  89                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
  90
  91                         if ($r) {
  92                                 $tmpfname = tempnam("/tmp", "ttrssicon");
  93
  94                                 $t = fopen($tmpfname, "w");
  95
  96                                 while (!feof($r)) {
  97                                         $buf = fread($r, 16384);
  98                                         fwrite($t, $buf);
  99                                 }
 100
 101                                 fclose($r);
 102                                 fclose($t);
 103
 104                                 error_reporting(0);
 105                                 if (!rename($tmpfname, $icon_file)) {
 106                                         unlink($tmpfname);
 107                                 }
 108                                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
 109
 110                         }
 111                 }
 112         }
 113
 114         function update_rss_feed($link, $feed_url, $feed) {
 115
 116                 if (WEB_DEMO_MODE) return;
 117
 118                 $feed = db_escape_string($feed);
 119
 120                 error_reporting(0);
 121                 $rss = fetch_rss($feed_url);
 122
 123                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
 124
 125                 db_query($link, "BEGIN");
 126
 127                 $feed = db_escape_string($feed);
 128
 129                 if ($rss) {
 130
 131                         if (get_pref($link, 'ENABLE_FEED_ICONS')) {
 132                                 check_feed_favicon($feed_url, $feed, $link);
 133                         }
 134
 135                         $result = db_query($link, "SELECT title,icon_url FROM ttrss_feeds WHERE id = '$feed'");
 136
 137                         $registered_title = db_fetch_result($result, 0, "title");
 138                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 139
 140                         if (!$registered_title) {
 141                                 $feed_title = db_escape_string($rss->channel["title"]);
 142                                 db_query($link, "UPDATE ttrss_feeds SET title = '$feed_title' WHERE id = '$feed'");
 143                         }
 144
 145 //                      print "I: " . $rss->channel["image"]["url"];
 146
 147                         $icon_url = $rss->image["url"];
 148
 149                         if ($icon_url && !$orig_icon_url) {
 150                                 $icon_url = db_escape_string($icon_url);
 151                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 152                         }
 153
 154
 155                         $filters = array();
 156
 157                         $result = db_query($link, "SELECT reg_exp,
 158                                 (SELECT name FROM ttrss_filter_types
 159                                         WHERE id = filter_type) as name
 160                                 FROM ttrss_filters");
 161
 162                         while ($line = db_fetch_assoc($result)) {
 163                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
 164                                 array_push($filters[$line["name"]], $line["reg_exp"]);
 165                         }
 166
 167                         foreach ($rss->items as $item) {
 168
 169                                 $entry_guid = $item["id"];
 170
 171                                 if (!$entry_guid) $entry_guid = $item["guid"];
 172                                 if (!$entry_guid) $entry_guid = $item["link"];
 173
 174                                 if (!$entry_guid) continue;
 175
 176                                 $entry_timestamp = "";
 177
 178                                 $rss_2_date = $item['pubdate'];
 179                                 $rss_1_date = $item['dc']['date'];
 180                                 $atom_date = $item['issued'];
 181
 182                                 if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 183                                 if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 184                                 if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 185
 186                                 if ($entry_timestamp == "") {
 187                                         $entry_timestamp = time();
 188                                         $no_orig_date = 'true';
 189                                 } else {
 190                                         $no_orig_date = 'false';
 191                                 }
 192
 193                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 194
 195                                 $entry_title = $item["title"];
 196                                 $entry_link = $item["link"];
 197
 198                                 if (!$entry_title) continue;
 199                                 if (!$entry_link) continue;
 200
 201                                 $entry_content = $item["content:escaped"];
 202
 203                                 if (!$entry_content) $entry_content = $item["content:encoded"];
 204                                 if (!$entry_content) $entry_content = $item["content"];
 205                                 if (!$entry_content) $entry_content = $item["description"];
 206
 207 //                              if (!$entry_content) continue;
 208
 209                                 // WTF
 210                                 if (is_array($entry_content)) {
 211                                         $entry_content = $entry_content["encoded"];
 212                                         if (!$entry_content) $entry_content = $entry_content["escaped"];
 213                                 }
 214
 215 //                              print_r($item);
 216 //                              print_r($entry_content);
 217
 218                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 219
 220                                 $entry_comments = $item["comments"];
 221
 222                                 $entry_guid = db_escape_string($entry_guid);
 223
 224                                 $result = db_query($link, "
 225                                         SELECT
 226                                                 id,last_read,no_orig_date,title,feed_id,content_hash,
 227                                                 substring(updated,1,19) as updated
 228                                         FROM
 229                                                 ttrss_entries
 230                                         WHERE
 231                                                 guid = '$entry_guid'");
 232
 233 //                              print db_num_rows($result) . "$entry_guid<br/>";
 234
 235                                 if (db_num_rows($result) == 0) {
 236
 237                                         error_reporting(0);
 238                                         if (is_filtered($entry_title, $entry_content, $filters)) {
 239                                                 continue;
 240                                         }
 241                                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
 242
 243                                         //$entry_guid = db_escape_string($entry_guid);
 244                                         $entry_content = db_escape_string($entry_content);
 245                                         $entry_title = db_escape_string($entry_title);
 246                                         $entry_link = db_escape_string($entry_link);
 247                                         $entry_comments = db_escape_string($entry_comments);
 248
 249                                         $query = "INSERT
 250                                                 INTO ttrss_entries
 251                                                         (title,
 252                                                         guid,
 253                                                         link,
 254                                                         updated,
 255                                                         content,
 256                                                         content_hash,
 257                                                         feed_id,
 258                                                         comments,
 259                                                         no_orig_date,
 260                                                         date_entered)
 261                                                 VALUES
 262                                                         ('$entry_title',
 263                                                         '$entry_guid',
 264                                                         '$entry_link',
 265                                                         '$entry_timestamp_fmt',
 266                                                         '$entry_content',
 267                                                         '$content_hash',
 268                                                         '$feed',
 269                                                         '$entry_comments',
 270                                                         $no_orig_date,
 271                                                         NOW())";
 272
 273                                         $result = db_query($link, $query);
 274
 275                                 } else {
 276
 277                                         $orig_entry_id = db_fetch_result($result, 0, "id");
 278                                         $orig_feed_id = db_fetch_result($result, 0, "feed_id");
 279
 280 //                                      print "OED: $orig_entry_id; OID: $orig_feed_id ; FID: $feed<br>";
 281
 282                                         if ($orig_feed_id != $feed) {
 283 //                                              print "<p>GUID $entry_guid: update from different feed ($orig_feed_id, $feed): $entry_guid [$entry_title]";
 284                                                 continue;
 285                                         }
 286
 287                                         $entry_is_modified = false;
 288
 289                                         $orig_timestamp = strtotime(db_fetch_result($result, 0, "updated"));
 290
 291                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
 292                                         $orig_last_read = db_fetch_result($result, 0, "last_read");
 293                                         $orig_no_orig_date = db_fetch_result($result, 0, "no_orig_date");
 294                                         $orig_title = db_fetch_result($result, 0, "title");
 295
 296                                         $last_read_qpart = "";
 297
 298                                         if ($orig_content_hash != $content_hash) {
 299 //                                              print "$orig_content_hash :: $content_hash<br>";
 300
 301                                                 if (get_pref($link, 'UPDATE_POST_ON_CHECKSUM_CHANGE')) {
 302                                                         $last_read_qpart = 'last_read = null,';
 303                                                 }
 304                                                 $entry_is_modified = true;
 305                                         }
 306
 307                                         if ($orig_title != $entry_title) {
 308                                                 $entry_is_modified = true;
 309                                         }
 310
 311                                         if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
 312                                                 $entry_is_modified = true;
 313                                         }
 314
 315                                         if ($entry_is_modified) {
 316
 317 //                                              print "$entry_guid Modified!<br>";
 318
 319                                                 $entry_comments = db_escape_string($entry_comments);
 320                                                 $entry_content = db_escape_string($entry_content);
 321                                                 $entry_title = db_escape_string($entry_title);
 322                                                 $entry_link = db_escape_string($entry_link);
 323
 324                                                 $query = "UPDATE ttrss_entries
 325                                                         SET
 326                                                                 $last_read_qpart
 327                                                                 title = '$entry_title',
 328                                                                 link = '$entry_link',
 329                                                                 updated = '$entry_timestamp_fmt',
 330                                                                 content = '$entry_content',
 331                                                                 comments = '$entry_comments',
 332                                                                 content_hash = '$content_hash'
 333                                                         WHERE
 334                                                                 id = '$orig_entry_id'";
 335
 336                                                 $result = db_query($link, $query);
 337                                         }
 338                                 }
 339
 340                                 /* taaaags */
 341                                 // <a href="http://technorati.com/tag/Xorg" rel="tag">Xorg</a>, //
 342
 343                                 $entry_tags = null;
 344
 345                                 preg_match_all("/<a.*?rel=.tag.*?>([^>]+)<\/a>/i", $entry_content,
 346                                         $entry_tags);
 347
 348                                 $entry_tags = $entry_tags[1];
 349
 350                                 if (count($entry_tags) > 0) {
 351
 352                                         $result = db_query($link, "SELECT id FROM ttrss_entries
 353                                                 WHERE guid = '$entry_guid'");
 354
 355                                         if (!$result || db_num_rows($result) != 1) {
 356                                                 return;
 357                                         }
 358
 359                                         $entry_id = db_fetch_result($result, 0, "id");
 360
 361                                         foreach ($entry_tags as $tag) {
 362                                                 $tag = db_escape_string(strtolower($tag));
 363
 364                                                 $result = db_query($link, "SELECT id FROM ttrss_tags
 365                                                         WHERE tag_name = '$tag' AND post_id = '$entry_id' LIMIT 1");
 366
 367                                                 if ($result && db_num_rows($result) == 0) {
 368
 369 //                                                      print "tagging $entry_id as $tag<br>";
 370
 371                                                         db_query($link, "INSERT INTO ttrss_tags (tag_name,post_id)
 372                                                                 VALUES ('$tag', '$entry_id')");
 373                                                 }
 374                                         }
 375                                 }
 376                         }
 377
 378                         db_query($link, "UPDATE ttrss_feeds
 379                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 380
 381                 } else {
 382                         $error_msg = db_escape_string(magpie_error());
 383                         db_query($link,
 384                                 "UPDATE ttrss_feeds SET last_error = '$error_msg',
 385                                         last_updated = NOW() WHERE id = '$feed'");
 386                 }
 387
 388                 db_query($link, "COMMIT");
 389
 390         }
 391
 392         function print_select($id, $default, $values, $attributes = "") {
 393                 print "<select id=\"$id\" $attributes>";
 394                 foreach ($values as $v) {
 395                         if ($v == $default)
 396                                 $sel = " selected";
 397                          else
 398                                 $sel = "";
 399
 400                         print "<option$sel>$v</option>";
 401                 }
 402                 print "</select>";
 403         }
 404
 405         function is_filtered($title, $content, $filters) {
 406
 407                 if ($filters["title"]) {
 408                         foreach ($filters["title"] as $title_filter) {
 409                                 if (preg_match("/$title_filter/i", $title))
 410                                         return true;
 411                         }
 412                 }
 413
 414                 if ($filters["content"]) {
 415                         foreach ($filters["content"] as $content_filter) {
 416                                 if (preg_match("/$content_filter/i", $content))
 417                                         return true;
 418                         }
 419                 }
 420
 421                 if ($filters["both"]) {
 422                         foreach ($filters["both"] as $filter) {
 423                                 if (preg_match("/$filter/i", $title) || preg_match("/$filter/i", $content))
 424                                         return true;
 425                         }
 426                 }
 427
 428                 return false;
 429         }
 430
 431         function printFeedEntry($feed_id, $class, $feed_title, $unread, $icon_file, $link) {
 432
 433                 if (file_exists($icon_file) && filesize($icon_file) > 0) {
 434                                 $feed_icon = "<img src=\"$icon_file\">";
 435                 } else {
 436                         $feed_icon = "<img src=\"images/blank_icon.gif\">";
 437                 }
 438
 439                 $feed = "<a href=\"javascript:viewfeed('$feed_id', 0);\">$feed_title</a>";
 440
 441                 print "<li id=\"FEEDR-$feed_id\" class=\"$class\">";
 442                 if (get_pref($link, 'ENABLE_FEED_ICONS')) {
 443                         print "$feed_icon";
 444                 }
 445
 446                 print "<span id=\"FEEDN-$feed_id\">$feed</span>";
 447
 448                 if ($unread != 0) {
 449                         $fctr_class = "";
 450                 } else {
 451                         $fctr_class = "class=\"invisible\"";
 452                 }
 453
 454                 print "<span $fctr_class id=\"FEEDCTR-$feed_id\">
 455                          (<span id=\"FEEDU-$feed_id\">$unread</span>)</span>";
 456
 457                 print "</li>";
 458
 459         }
 460
 461         function getmicrotime() {
 462                 list($usec, $sec) = explode(" ",microtime());
 463                 return ((float)$usec + (float)$sec);
 464         }
 465
 466         function print_radio($id, $default, $values, $attributes = "") {
 467                 foreach ($values as $v) {
 468
 469                         if ($v == $default)
 470                                 $sel = "checked";
 471                          else
 472                                 $sel = "";
 473
 474                         if ($v == "Yes") {
 475                                 $sel .= " value=\"1\"";
 476                         } else {
 477                                 $sel .= " value=\"0\"";
 478                         }
 479
 480                         print "<input type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
 481
 482                 }
 483         }
 484
 485 ?>