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                 $result = db_query($link, "SELECT feed_url,id,last_updated FROM ttrss_feeds");
  21
  22                 while ($line = db_fetch_assoc($result)) {
  23                         if (!$line["last_updated"] || time() - strtotime($line["last_updated"]) > 1800) {
  24                                 update_rss_feed($link, $line["feed_url"], $line["id"]);
  25                         }
  26                 }
  27
  28                 purge_old_posts($link);
  29
  30                 db_query($link, "COMMIT");
  31
  32         }
  33
  34         function check_feed_favicon($feed_url, $feed) {
  35                 $feed_url = str_replace("http://", "", $feed_url);
  36                 $feed_url = preg_replace("/\/.*$/", "", $feed_url);
  37
  38                 $icon_url = "http://$feed_url/favicon.ico";
  39                 $icon_file = ICONS_DIR . "/$feed.ico";
  40
  41                 if (!file_exists($icon_file)) {
  42
  43                         error_reporting(0);
  44                         $r = fopen($icon_url, "r");
  45                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
  46
  47                         if ($r) {
  48                                 $tmpfname = tempnam("/tmp", "ttrssicon");
  49
  50                                 $t = fopen($tmpfname, "w");
  51
  52                                 while (!feof($r)) {
  53                                         $buf = fread($r, 16384);
  54                                         fwrite($t, $buf);
  55                                 }
  56
  57                                 fclose($r);
  58                                 fclose($t);
  59
  60                                 error_reporting(0);
  61                                 if (!rename($tmpfname, $icon_file)) {
  62                                         unlink($tmpfname);
  63                                 }
  64                                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
  65
  66                         }
  67                 }
  68         }
  69
  70         function update_rss_feed($link, $feed_url, $feed) {
  71
  72                 if (WEB_DEMO_MODE) return;
  73
  74                 error_reporting(0);
  75                 $rss = fetch_rss($feed_url);
  76                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
  77
  78                 db_query($link, "BEGIN");
  79
  80                 $feed = db_escape_string($feed);
  81
  82                 if ($rss) {
  83
  84                         if (ENABLE_FEED_ICONS) {
  85                                 check_feed_favicon($feed_url, $feed);
  86                         }
  87
  88                         $result = db_query($link, "SELECT title,icon_url FROM ttrss_feeds WHERE id = '$feed'");
  89
  90                         $registered_title = db_fetch_result($result, 0, "title");
  91                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
  92
  93                         if (!$registered_title) {
  94                                 $feed_title = $rss->channel["title"];
  95                                 db_query($link, "UPDATE ttrss_feeds SET title = '$feed_title' WHERE id = '$feed'");
  96                         }
  97
  98 //                      print "I: " . $rss->channel["image"]["url"];
  99
 100                         $icon_url = $rss->image["url"];
 101
 102                         if ($icon_url && !$orig_icon_url) {
 103                                 $icon_url = db_escape_string($icon_url);
 104                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 105                         }
 106
 107
 108                         $filters = array();
 109
 110                         $result = db_query($link, "SELECT reg_exp,
 111                                 (SELECT name FROM ttrss_filter_types
 112                                         WHERE id = filter_type) as name
 113                                 FROM ttrss_filters");
 114
 115                         while ($line = db_fetch_assoc($result)) {
 116                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
 117                                 array_push($filters[$line["name"]], $line["reg_exp"]);
 118                         }
 119
 120                         foreach ($rss->items as $item) {
 121
 122                                 $entry_guid = $item["id"];
 123
 124                                 if (!$entry_guid) $entry_guid = $item["guid"];
 125                                 if (!$entry_guid) $entry_guid = $item["link"];
 126
 127                                 if (!$entry_guid) continue;
 128
 129                                 $entry_timestamp = "";
 130
 131                                 $rss_2_date = $item['pubdate'];
 132                                 $rss_1_date = $item['dc']['date'];
 133                                 $atom_date = $item['issued'];
 134
 135                                 if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 136                                 if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 137                                 if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 138
 139                                 if ($entry_timestamp == "") {
 140                                         $entry_timestamp = time();
 141                                         $no_orig_date = 'true';
 142                                 } else {
 143                                         $no_orig_date = 'false';
 144                                 }
 145
 146                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 147
 148                                 $entry_title = $item["title"];
 149                                 $entry_link = $item["link"];
 150
 151                                 if (!$entry_title) continue;
 152                                 if (!$entry_link) continue;
 153
 154                                 $entry_content = $item["description"];
 155                                 if (!$entry_content) $entry_content = $item["content:escaped"];
 156                                 if (!$entry_content) $entry_content = $item["content"];
 157
 158 //                              if (!$entry_content) continue;
 159
 160                                 // WTF
 161                                 if (is_array($entry_content)) {
 162                                         $entry_content = $entry_content["encoded"];
 163                                 }
 164
 165                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 166
 167                                 $entry_comments = $item["comments"];
 168
 169                                 $entry_guid = db_escape_string($entry_guid);
 170
 171                                 if (DB_TYPE == "pgsql") {
 172                                         $extract_ts_qpart = ",EXTRACT(EPOCH FROM updated) as updated_timestamp";
 173                                 }
 174
 175                                 $result = db_query($link, "
 176                                         SELECT
 177                                                 id,last_read,no_orig_date,title,feed_id,content_hash
 178                                                 $extract_ts_qpart
 179                                         FROM
 180                                                 ttrss_entries
 181                                         WHERE
 182                                                 guid = '$entry_guid'");
 183
 184                                 if (db_num_rows($result) == 0) {
 185
 186                                         error_reporting(0);
 187                                         if (is_filtered($entry_title, $entry_content, $filters)) {
 188                                                 continue;
 189                                         }
 190                                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
 191
 192                                         //$entry_guid = db_escape_string($entry_guid);
 193                                         $entry_content = db_escape_string($entry_content);
 194                                         $entry_title = db_escape_string($entry_title);
 195                                         $entry_link = db_escape_string($entry_link);
 196                                         $entry_comments = db_escape_string($entry_comments);
 197
 198                                         $query = "INSERT
 199                                                 INTO ttrss_entries
 200                                                         (title,
 201                                                         guid,
 202                                                         link,
 203                                                         updated,
 204                                                         content,
 205                                                         content_hash,
 206                                                         feed_id,
 207                                                         comments,
 208                                                         no_orig_date)
 209                                                 VALUES
 210                                                         ('$entry_title',
 211                                                         '$entry_guid',
 212                                                         '$entry_link',
 213                                                         '$entry_timestamp_fmt',
 214                                                         '$entry_content',
 215                                                         '$content_hash',
 216                                                         '$feed',
 217                                                         '$entry_comments',
 218                                                         $no_orig_date)";
 219
 220                                         $result = db_query($link, $query);
 221
 222                                 } else {
 223
 224                                         $orig_entry_id = db_fetch_result($result, 0, "id");
 225                                         $orig_feed_id = db_fetch_result($result, 0, "feed_id");
 226
 227                                         if ($orig_feed_id != $feed) {
 228 //                                              print "<p>Update from different feed ($orig_feed_id, $feed): $entry_guid [$entry_title]";
 229                                                 continue;
 230                                         }
 231
 232                                         $entry_is_modified = false;
 233
 234                                         $orig_timestamp = db_fetch_result($result, 0, "updated_timestamp");
 235                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
 236                                         $orig_last_read = db_fetch_result($result, 0, "last_read");
 237                                         $orig_no_orig_date = db_fetch_result($result, 0, "no_orig_date");
 238                                         $orig_title = db_fetch_result($result, 0, "title");
 239
 240                                         $last_read_qpart = "";
 241
 242                                         if ($orig_content_hash != $content_hash) {
 243                                                 if (UPDATE_POST_ON_CHECKSUM_CHANGE) {
 244                                                         $last_read_qpart = 'last_read = null,';
 245                                                 }
 246                                                 $entry_is_modified = true;
 247                                         }
 248
 249                                         if ($orig_title != $entry_title) {
 250                                                 $entry_is_modified = true;
 251                                         }
 252
 253                                         if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
 254                                                 $entry_is_modified = true;
 255                                         }
 256
 257                                         if ($entry_is_modified) {
 258
 259                                                 $entry_comments = db_escape_string($entry_comments);
 260                                                 $entry_content = db_escape_string($entry_content);
 261                                                 $entry_title = db_escape_string($entry_title);
 262                                                 $entry_link = db_escape_string($entry_link);
 263
 264                                                 $query = "UPDATE ttrss_entries
 265                                                         SET
 266                                                                 $last_read_qpart
 267                                                                 title = '$entry_title',
 268                                                                 link = '$entry_link',
 269                                                                 updated = '$entry_timestamp_fmt',
 270                                                                 content = '$entry_content',
 271                                                                 comments = '$entry_comments',
 272                                                                 content_hash = '$content_hash'
 273                                                         WHERE
 274                                                                 id = '$orig_entry_id'";
 275
 276                                                 $result = db_query($link, $query);
 277                                         }
 278                                 }
 279
 280                                 /* taaaags */
 281                                 // <a href="http://technorati.com/tag/Xorg" rel="tag">Xorg</a>, //
 282
 283                                 $entry_tags = null;
 284
 285                                 preg_match_all("/<a.*?rel=.tag.*?>([^>]+)<\/a>/i", $entry_content,
 286                                         $entry_tags);
 287
 288                                 $entry_tags = $entry_tags[1];
 289
 290                                 if (count($entry_tags) > 0) {
 291
 292                                         $result = db_query($link, "SELECT id FROM ttrss_entries
 293                                                 WHERE guid = '$entry_guid'");
 294
 295                                         if (!$result || db_num_rows($result) != 1) {
 296                                                 return;
 297                                         }
 298
 299                                         $entry_id = db_fetch_result($result, 0, "id");
 300
 301                                         foreach ($entry_tags as $tag) {
 302                                                 $tag = db_escape_string(strtolower($tag));
 303
 304                                                 $result = db_query($link, "SELECT id FROM ttrss_tags
 305                                                         WHERE tag_name = '$tag' AND post_id = '$entry_id' LIMIT 1");
 306
 307                                                 if ($result && db_num_rows($result) == 0) {
 308
 309 //                                                      print "tagging $entry_id as $tag<br>";
 310
 311                                                         db_query($link, "INSERT INTO ttrss_tags (tag_name,post_id)
 312                                                                 VALUES ('$tag', '$entry_id')");
 313                                                 }
 314                                         }
 315                                 }
 316                         }
 317
 318                         db_query($link, "UPDATE ttrss_feeds SET last_updated = NOW()");
 319
 320                 }
 321
 322                 db_query($link, "COMMIT");
 323
 324         }
 325
 326         function print_select($id, $default, $values, $attributes = "") {
 327                 print "<select id=\"$id\" $attributes>";
 328                 foreach ($values as $v) {
 329                         if ($v == $default)
 330                                 $sel = " selected";
 331                          else
 332                                 $sel = "";
 333
 334                         print "<option$sel>$v</option>";
 335                 }
 336                 print "</select>";
 337         }
 338
 339         function is_filtered($title, $content, $filters) {
 340
 341                 if ($filters["title"]) {
 342                         foreach ($filters["title"] as $title_filter) {
 343                                 if (preg_match("/$title_filter/i", $title))
 344                                         return true;
 345                         }
 346                 }
 347
 348                 if ($filters["content"]) {
 349                         foreach ($filters["content"] as $content_filter) {
 350                                 if (preg_match("/$content_filter/i", $content))
 351                                         return true;
 352                         }
 353                 }
 354
 355                 if ($filters["both"]) {
 356                         foreach ($filters["both"] as $filter) {
 357                                 if (preg_match("/$filter/i", $title) || preg_match("/$filter/i", $content))
 358                                         return true;
 359                         }
 360                 }
 361
 362                 return false;
 363         }
 364
 365         function printFeedEntry($feed_id, $class, $feed_title, $unread, $icon_file) {
 366
 367                 if (file_exists($icon_file) && filesize($icon_file) > 0) {
 368                                 $feed_icon = "<img src=\"$icon_file\">";
 369                 } else {
 370                         $feed_icon = "<img src=\"images/blank_icon.gif\">";
 371                 }
 372
 373                 $feed = "<a href=\"javascript:viewfeed('$feed_id', 0);\">$feed_title</a>";
 374
 375                 print "<li id=\"FEEDR-$feed_id\" class=\"$class\">";
 376                 if (ENABLE_FEED_ICONS) {
 377                         print "$feed_icon";
 378                 }
 379
 380                 print "<span id=\"FEEDN-$feed_id\">$feed</span>";
 381
 382                 if ($unread != 0) {
 383                         $fctr_class = "";
 384                 } else {
 385                         $fctr_class = "class=\"invisible\"";
 386                 }
 387
 388                 print "<span $fctr_class id=\"FEEDCTR-$feed_id\">
 389                          (<span id=\"FEEDU-$feed_id\">$unread</span>)</span>";
 390
 391                 print "</li>";
 392
 393         }
 394
 395 ?>