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