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,last_updated FROM ttrss_feeds");
  28
  29                 while ($line = db_fetch_assoc($result)) {
  30                         if (!$line["last_updated"] || time() - strtotime($line["last_updated"]) > 1800) {
  31                                 update_rss_feed($link, $line["feed_url"], $line["id"]);
  32                         }
  33                 }
  34
  35                 purge_old_posts($link);
  36
  37                 db_query($link, "COMMIT");
  38
  39         }
  40
  41         function check_feed_favicon($feed_url, $feed) {
  42                 $feed_url = str_replace("http://", "", $feed_url);
  43                 $feed_url = preg_replace("/\/.*$/", "", $feed_url);
  44
  45                 $icon_url = "http://$feed_url/favicon.ico";
  46                 $icon_file = ICONS_DIR . "/$feed.ico";
  47
  48                 if (!file_exists($icon_file)) {
  49
  50                         error_reporting(0);
  51                         $r = fopen($icon_url, "r");
  52                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
  53
  54                         if ($r) {
  55                                 $tmpfname = tempnam("/tmp", "ttrssicon");
  56
  57                                 $t = fopen($tmpfname, "w");
  58
  59                                 while (!feof($r)) {
  60                                         $buf = fread($r, 16384);
  61                                         fwrite($t, $buf);
  62                                 }
  63
  64                                 fclose($r);
  65                                 fclose($t);
  66
  67                                 error_reporting(0);
  68                                 if (!rename($tmpfname, $icon_file)) {
  69                                         unlink($tmpfname);
  70                                 }
  71                                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
  72
  73                         }
  74                 }
  75         }
  76
  77         function update_rss_feed($link, $feed_url, $feed) {
  78
  79                 if (WEB_DEMO_MODE) return;
  80
  81                 error_reporting(0);
  82                 $rss = fetch_rss($feed_url);
  83                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
  84
  85                 db_query($link, "BEGIN");
  86
  87                 $feed = db_escape_string($feed);
  88
  89                 if ($rss) {
  90
  91                         if (ENABLE_FEED_ICONS) {
  92                                 check_feed_favicon($feed_url, $feed);
  93                         }
  94
  95                         $result = db_query($link, "SELECT title,icon_url FROM ttrss_feeds WHERE id = '$feed'");
  96
  97                         $registered_title = db_fetch_result($result, 0, "title");
  98                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
  99
 100                         if (!$registered_title) {
 101                                 $feed_title = db_escape_string($rss->channel["title"]);
 102                                 db_query($link, "UPDATE ttrss_feeds SET title = '$feed_title' WHERE id = '$feed'");
 103                         }
 104
 105 //                      print "I: " . $rss->channel["image"]["url"];
 106
 107                         $icon_url = $rss->image["url"];
 108
 109                         if ($icon_url && !$orig_icon_url) {
 110                                 $icon_url = db_escape_string($icon_url);
 111                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 112                         }
 113
 114
 115                         $filters = array();
 116
 117                         $result = db_query($link, "SELECT reg_exp,
 118                                 (SELECT name FROM ttrss_filter_types
 119                                         WHERE id = filter_type) as name
 120                                 FROM ttrss_filters");
 121
 122                         while ($line = db_fetch_assoc($result)) {
 123                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
 124                                 array_push($filters[$line["name"]], $line["reg_exp"]);
 125                         }
 126
 127                         foreach ($rss->items as $item) {
 128
 129                                 $entry_guid = $item["id"];
 130
 131                                 if (!$entry_guid) $entry_guid = $item["guid"];
 132                                 if (!$entry_guid) $entry_guid = $item["link"];
 133
 134                                 if (!$entry_guid) continue;
 135
 136                                 $entry_timestamp = "";
 137
 138                                 $rss_2_date = $item['pubdate'];
 139                                 $rss_1_date = $item['dc']['date'];
 140                                 $atom_date = $item['issued'];
 141
 142                                 if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 143                                 if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 144                                 if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 145
 146                                 if ($entry_timestamp == "") {
 147                                         $entry_timestamp = time();
 148                                         $no_orig_date = 'true';
 149                                 } else {
 150                                         $no_orig_date = 'false';
 151                                 }
 152
 153                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 154
 155                                 $entry_title = $item["title"];
 156                                 $entry_link = $item["link"];
 157
 158                                 if (!$entry_title) continue;
 159                                 if (!$entry_link) continue;
 160
 161                                 $entry_content = $item["description"];
 162                                 if (!$entry_content) $entry_content = $item["content:escaped"];
 163                                 if (!$entry_content) $entry_content = $item["content"];
 164
 165 //                              if (!$entry_content) continue;
 166
 167                                 // WTF
 168                                 if (is_array($entry_content)) {
 169                                         $entry_content = $entry_content["encoded"];
 170                                 }
 171
 172                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 173
 174                                 $entry_comments = $item["comments"];
 175
 176                                 $entry_guid = db_escape_string($entry_guid);
 177
 178                                 if (DB_TYPE == "pgsql") {
 179                                         $extract_ts_qpart = ",EXTRACT(EPOCH FROM updated) as updated_timestamp";
 180                                 }
 181
 182                                 $result = db_query($link, "
 183                                         SELECT
 184                                                 id,last_read,no_orig_date,title,feed_id,content_hash
 185                                                 $extract_ts_qpart
 186                                         FROM
 187                                                 ttrss_entries
 188                                         WHERE
 189                                                 guid = '$entry_guid'");
 190
 191                                 if (db_num_rows($result) == 0) {
 192
 193                                         error_reporting(0);
 194                                         if (is_filtered($entry_title, $entry_content, $filters)) {
 195                                                 continue;
 196                                         }
 197                                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
 198
 199                                         //$entry_guid = db_escape_string($entry_guid);
 200                                         $entry_content = db_escape_string($entry_content);
 201                                         $entry_title = db_escape_string($entry_title);
 202                                         $entry_link = db_escape_string($entry_link);
 203                                         $entry_comments = db_escape_string($entry_comments);
 204
 205                                         $query = "INSERT
 206                                                 INTO ttrss_entries
 207                                                         (title,
 208                                                         guid,
 209                                                         link,
 210                                                         updated,
 211                                                         content,
 212                                                         content_hash,
 213                                                         feed_id,
 214                                                         comments,
 215                                                         no_orig_date,
 216                                                         date_entered)
 217                                                 VALUES
 218                                                         ('$entry_title',
 219                                                         '$entry_guid',
 220                                                         '$entry_link',
 221                                                         '$entry_timestamp_fmt',
 222                                                         '$entry_content',
 223                                                         '$content_hash',
 224                                                         '$feed',
 225                                                         '$entry_comments',
 226                                                         $no_orig_date,
 227                                                         NOW())";
 228
 229                                         $result = db_query($link, $query);
 230
 231                                 } else {
 232
 233                                         $orig_entry_id = db_fetch_result($result, 0, "id");
 234                                         $orig_feed_id = db_fetch_result($result, 0, "feed_id");
 235
 236                                         if ($orig_feed_id != $feed) {
 237 //                                              print "<p>Update from different feed ($orig_feed_id, $feed): $entry_guid [$entry_title]";
 238                                                 continue;
 239                                         }
 240
 241                                         $entry_is_modified = false;
 242
 243                                         $orig_timestamp = db_fetch_result($result, 0, "updated_timestamp");
 244                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
 245                                         $orig_last_read = db_fetch_result($result, 0, "last_read");
 246                                         $orig_no_orig_date = db_fetch_result($result, 0, "no_orig_date");
 247                                         $orig_title = db_fetch_result($result, 0, "title");
 248
 249                                         $last_read_qpart = "";
 250
 251                                         if ($orig_content_hash != $content_hash) {
 252                                                 if (UPDATE_POST_ON_CHECKSUM_CHANGE) {
 253                                                         $last_read_qpart = 'last_read = null,';
 254                                                 }
 255                                                 $entry_is_modified = true;
 256                                         }
 257
 258                                         if ($orig_title != $entry_title) {
 259                                                 $entry_is_modified = true;
 260                                         }
 261
 262                                         if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
 263                                                 $entry_is_modified = true;
 264                                         }
 265
 266                                         if ($entry_is_modified) {
 267
 268                                                 $entry_comments = db_escape_string($entry_comments);
 269                                                 $entry_content = db_escape_string($entry_content);
 270                                                 $entry_title = db_escape_string($entry_title);
 271                                                 $entry_link = db_escape_string($entry_link);
 272
 273                                                 $query = "UPDATE ttrss_entries
 274                                                         SET
 275                                                                 $last_read_qpart
 276                                                                 title = '$entry_title',
 277                                                                 link = '$entry_link',
 278                                                                 updated = '$entry_timestamp_fmt',
 279                                                                 content = '$entry_content',
 280                                                                 comments = '$entry_comments',
 281                                                                 content_hash = '$content_hash'
 282                                                         WHERE
 283                                                                 id = '$orig_entry_id'";
 284
 285                                                 $result = db_query($link, $query);
 286                                         }
 287                                 }
 288
 289                                 /* taaaags */
 290                                 // <a href="http://technorati.com/tag/Xorg" rel="tag">Xorg</a>, //
 291
 292                                 $entry_tags = null;
 293
 294                                 preg_match_all("/<a.*?rel=.tag.*?>([^>]+)<\/a>/i", $entry_content,
 295                                         $entry_tags);
 296
 297                                 $entry_tags = $entry_tags[1];
 298
 299                                 if (count($entry_tags) > 0) {
 300
 301                                         $result = db_query($link, "SELECT id FROM ttrss_entries
 302                                                 WHERE guid = '$entry_guid'");
 303
 304                                         if (!$result || db_num_rows($result) != 1) {
 305                                                 return;
 306                                         }
 307
 308                                         $entry_id = db_fetch_result($result, 0, "id");
 309
 310                                         foreach ($entry_tags as $tag) {
 311                                                 $tag = db_escape_string(strtolower($tag));
 312
 313                                                 $result = db_query($link, "SELECT id FROM ttrss_tags
 314                                                         WHERE tag_name = '$tag' AND post_id = '$entry_id' LIMIT 1");
 315
 316                                                 if ($result && db_num_rows($result) == 0) {
 317
 318 //                                                      print "tagging $entry_id as $tag<br>";
 319
 320                                                         db_query($link, "INSERT INTO ttrss_tags (tag_name,post_id)
 321                                                                 VALUES ('$tag', '$entry_id')");
 322                                                 }
 323                                         }
 324                                 }
 325                         }
 326
 327                         db_query($link, "UPDATE ttrss_feeds SET last_updated = NOW()");
 328
 329                 }
 330
 331                 db_query($link, "COMMIT");
 332
 333         }
 334
 335         function print_select($id, $default, $values, $attributes = "") {
 336                 print "<select id=\"$id\" $attributes>";
 337                 foreach ($values as $v) {
 338                         if ($v == $default)
 339                                 $sel = " selected";
 340                          else
 341                                 $sel = "";
 342
 343                         print "<option$sel>$v</option>";
 344                 }
 345                 print "</select>";
 346         }
 347
 348         function is_filtered($title, $content, $filters) {
 349
 350                 if ($filters["title"]) {
 351                         foreach ($filters["title"] as $title_filter) {
 352                                 if (preg_match("/$title_filter/i", $title))
 353                                         return true;
 354                         }
 355                 }
 356
 357                 if ($filters["content"]) {
 358                         foreach ($filters["content"] as $content_filter) {
 359                                 if (preg_match("/$content_filter/i", $content))
 360                                         return true;
 361                         }
 362                 }
 363
 364                 if ($filters["both"]) {
 365                         foreach ($filters["both"] as $filter) {
 366                                 if (preg_match("/$filter/i", $title) || preg_match("/$filter/i", $content))
 367                                         return true;
 368                         }
 369                 }
 370
 371                 return false;
 372         }
 373
 374         function printFeedEntry($feed_id, $class, $feed_title, $unread, $icon_file) {
 375
 376                 if (file_exists($icon_file) && filesize($icon_file) > 0) {
 377                                 $feed_icon = "<img src=\"$icon_file\">";
 378                 } else {
 379                         $feed_icon = "<img src=\"images/blank_icon.gif\">";
 380                 }
 381
 382                 $feed = "<a href=\"javascript:viewfeed('$feed_id', 0);\">$feed_title</a>";
 383
 384                 print "<li id=\"FEEDR-$feed_id\" class=\"$class\">";
 385                 if (ENABLE_FEED_ICONS) {
 386                         print "$feed_icon";
 387                 }
 388
 389                 print "<span id=\"FEEDN-$feed_id\">$feed</span>";
 390
 391                 if ($unread != 0) {
 392                         $fctr_class = "";
 393                 } else {
 394                         $fctr_class = "class=\"invisible\"";
 395                 }
 396
 397                 print "<span $fctr_class id=\"FEEDCTR-$feed_id\">
 398                          (<span id=\"FEEDU-$feed_id\">$unread</span>)</span>";
 399
 400                 print "</li>";
 401
 402         }
 403
 404 ?>