include/items.php

   1 <?php
   2
   3
   4 function get_feed_for(&$a, $dfrn_id, $owner_id, $last_update) {
   5
   6         require_once('bbcode.php');
   7
   8         // default permissions - anonymous user
   9
  10         $sql_extra = "
  11                 AND `allow_cid` = ''
  12                 AND `allow_gid` = ''
  13                 AND `deny_cid`  = ''
  14                 AND `deny_gid`  = ''
  15         ";
  16
  17         if(strlen($owner_id) && ! intval($owner_id)) {
  18                 $r = q("SELECT `uid`, `nickname` FROM `user` WHERE `nickname` = '%s' LIMIT 1",
  19                         dbesc($owner_id)
  20                 );
  21                 if(count($r)) {
  22                         $owner_id = $r[0]['uid'];
  23                         $owner_nick = $r[0]['nickname'];
  24                 }
  25         }
  26
  27         $r = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
  28                 intval($owner_id)
  29         );
  30         if(count($r))
  31                 $owner = $r[0];
  32         else
  33                 killme();
  34
  35         if($dfrn_id != '*') {
  36
  37                 $r = q("SELECT * FROM `contact` WHERE `issued-id` = '%s' LIMIT 1",
  38                         dbesc($dfrn_id)
  39                 );
  40                 if(! count($r))
  41                         return false;
  42
  43                 $contact = $r[0];
  44                 $groups = init_groups_visitor($contact['id']);
  45
  46                 if(count($groups)) {
  47                         for($x = 0; $x < count($groups); $x ++)
  48                                 $groups[$x] = '<' . intval($groups[$x]) . '>' ;
  49                         $gs = implode('|', $groups);
  50                 }
  51                 else
  52                         $gs = '<<>>' ; // Impossible to match
  53
  54                 $sql_extra = sprintf("
  55                         AND ( `allow_cid` = '' OR     `allow_cid` REGEXP '<%d>' )
  56                         AND ( `deny_cid`  = '' OR NOT `deny_cid`  REGEXP '<%d>' )
  57                         AND ( `allow_gid` = '' OR     `allow_gid` REGEXP '%s' )
  58                         AND ( `deny_gid`  = '' OR NOT `deny_gid`  REGEXP '%s')
  59                 ",
  60                         intval($contact['id']),
  61                         intval($contact['id']),
  62                         dbesc($gs),
  63                         dbesc($gs)
  64                 );
  65         }
  66
  67         if(! strlen($last_update))
  68                 $last_update = 'now - 30 days';
  69         $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
  70
  71         $r = q("SELECT `item`.*, `item`.`id` AS `item_id`,
  72                 `contact`.`name`, `contact`.`photo`, `contact`.`url`,
  73                 `contact`.`name-date`, `contact`.`uri-date`, `contact`.`avatar-date`,
  74                 `contact`.`thumb`, `contact`.`dfrn-id`, `contact`.`self`,
  75                 `contact`.`id` AS `contact-id`, `contact`.`uid` AS `contact-uid`
  76                 FROM `item` LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
  77                 WHERE `item`.`uid` = %d AND `item`.`visible` = 1
  78                 AND NOT `item`.`type` IN ( 'remote', 'net-comment' ) AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
  79                 AND ( `item`.`edited` > '%s' OR `item`.`changed` > '%s' )
  80                 $sql_extra
  81                 ORDER BY `parent` ASC, `created` ASC LIMIT 0, 300",
  82                 intval($owner_id),
  83                 dbesc($check_date),
  84                 dbesc($check_date)
  85         );
  86         if(! count($r))
  87                 killme();
  88
  89         $items = $r;
  90
  91         $feed_template = file_get_contents('view/atom_feed.tpl');
  92         $tomb_template = file_get_contents('view/atom_tomb.tpl');
  93         $item_template = file_get_contents('view/atom_item.tpl');
  94         $cmnt_template = file_get_contents('view/atom_cmnt.tpl');
  95
  96         $atom = '';
  97
  98
  99         $atom .= replace_macros($feed_template, array(
 100                         '$feed_id'      => xmlify($a->get_baseurl() . '/profile/' . $owner_nick),
 101                         '$feed_title'   => xmlify($owner['name']),
 102                         '$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', $updated . '+00:00' , ATOM_TIME)) ,
 103                         '$name'         => xmlify($owner['name']),
 104                         '$profile_page' => xmlify($owner['url']),
 105                         '$photo'        => xmlify($owner['photo']),
 106                         '$thumb'        => xmlify($owner['thumb']),
 107                         '$picdate'      => xmlify(datetime_convert('UTC','UTC',$owner['avatar-date'] . '+00:00' , ATOM_TIME)) ,
 108                         '$uridate'      => xmlify(datetime_convert('UTC','UTC',$owner['uri-date']    . '+00:00' , ATOM_TIME)) ,
 109                         '$namdate'      => xmlify(datetime_convert('UTC','UTC',$owner['name-date']   . '+00:00' , ATOM_TIME))
 110         ));
 111
 112
 113         foreach($items as $item) {
 114
 115                 // public feeds get html, our own nodes use bbcode
 116
 117                 if($dfrn_id == '*') {
 118                         $item['body'] = bbcode($item['body']);
 119                         $type = 'html';
 120                 }
 121                 else {
 122                         $type = 'text';
 123                 }
 124
 125                 if($item['deleted']) {
 126                         $atom .= replace_macros($tomb_template, array(
 127                                 '$id' => xmlify($item['uri']),
 128                                 '$updated' => xmlify(datetime_convert('UTC', 'UTC', $item['edited'] . '+00:00' , ATOM_TIME))
 129                         ));
 130                 }
 131                 else {
 132                         $verb = construct_verb($item);
 133                         $actobj = construct_activity($item);
 134
 135                         if($item['parent'] == $item['id']) {
 136                                 $atom .= replace_macros($item_template, array(
 137                                         '$name' => xmlify($item['name']),
 138                                         '$profile_page' => xmlify($item['url']),
 139                                         '$thumb' => xmlify($item['thumb']),
 140                                         '$owner_name' => xmlify($item['owner-name']),
 141                                         '$owner_profile_page' => xmlify($item['owner-link']),
 142                                         '$owner_thumb' => xmlify($item['owner-avatar']),
 143                                         '$item_id' => xmlify($item['uri']),
 144                                         '$title' => xmlify($item['title']),
 145                                         '$published' => xmlify(datetime_convert('UTC', 'UTC', $item['created'] . '+00:00' , ATOM_TIME)),
 146                                         '$updated' => xmlify(datetime_convert('UTC', 'UTC', $item['edited'] . '+00:00' , ATOM_TIME)),
 147                                         '$location' => xmlify($item['location']),
 148                                         '$type' => $type,
 149                                         '$content' => xmlify($item['body']),
 150                                         '$verb' => xmlify($verb),
 151                                         '$actobj' => $actobj,  // do not xmlify
 152                                         '$comment_allow' => ((($item['last-child']) && ($contact['rel']) && ($contact['rel'] != REL_FAN)) ? 1 : 0)
 153                                 ));
 154                         }
 155                         else {
 156                                 $atom .= replace_macros($cmnt_template, array(
 157                                         '$name' => xmlify($item['name']),
 158                                         '$profile_page' => xmlify($item['url']),
 159                                         '$thumb' => xmlify($item['thumb']),
 160                                         '$item_id' => xmlify($item['uri']),
 161                                         '$title' => xmlify($item['title']),
 162                                         '$published' => xmlify(datetime_convert('UTC', 'UTC', $item['created'] . '+00:00' , ATOM_TIME)),
 163                                         '$updated' => xmlify(datetime_convert('UTC', 'UTC', $item['edited'] . '+00:00' , ATOM_TIME)),
 164                                         '$type' => $type,
 165                                         '$content' =>xmlify($item['body']),
 166                                         '$verb' => xmlify($verb),
 167                                         '$actobj' => $actobj, // do not xmlify
 168                                         '$parent_id' => xmlify($item['parent-uri']),
 169                                         '$comment_allow' => (($item['last-child']) ? 1 : 0)
 170                                 ));
 171                         }
 172                 }
 173         }
 174
 175         $atom .= '</feed>' . "\r\n";
 176         return $atom;
 177 }
 178
 179
 180 function construct_verb($item) {
 181         if($item['verb'])
 182                 return $item['verb'];
 183         return ACTIVITY_POST;
 184 }
 185
 186 function construct_activity($item) {
 187
 188         if($item['type'] == 'activity') {
 189
 190
 191         }
 192         return '';
 193 }
 194
 195
 196
 197
 198 function get_atom_elements($item) {
 199
 200         require_once('library/HTMLPurifier.auto.php');
 201         require_once('include/html2bbcode.php');
 202
 203         $res = array();
 204
 205         $raw_author = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 206         if($raw_author) {
 207                 if($raw_author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'][0]['attribs']['']['rel'] == 'photo')
 208                 $res['author-avatar'] = unxmlify($raw_author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'][0]['attribs']['']['href']);
 209         }
 210
 211         $author = $item->get_author();
 212         $res['author-name'] = unxmlify($author->get_name());
 213         $res['author-link'] = unxmlify($author->get_link());
 214         if(! $res['author-avatar'])
 215                 $res['author-avatar'] = unxmlify($author->get_avatar());
 216         $res['uri'] = unxmlify($item->get_id());
 217         $res['title'] = unxmlify($item->get_title());
 218         $res['body'] = unxmlify($item->get_content());
 219
 220         $maxlen = get_max_import_size();
 221         if($maxlen && (strlen($res['body']) > $maxlen))
 222                 $res['body'] = substr($res['body'],0, $maxlen);
 223
 224         // It isn't certain at this point whether our content is plaintext or html and we'd be foolish to trust
 225         // the content type. Our own network only emits text normally, though it might have been converted to
 226         // html if we used a pubsubhubbub transport. But if we see even one html open tag in our text, we will
 227         // have to assume it is all html and needs to be purified.
 228
 229         // It doesn't matter all that much security wise - because before this content is used anywhere, we are
 230         // going to escape any tags we find regardless, but this lets us import a limited subset of html from
 231         // the wild, by sanitising it and converting supported tags to bbcode before we rip out any remaining
 232         // html.
 233
 234
 235         if(strpos($res['body'],'<')) {
 236
 237                 $res['body'] = preg_replace('#<object[^>]+>.+?' . 'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s',
 238                         '[youtube]$1[/youtube]', $res['body']);
 239
 240                 $config = HTMLPurifier_Config::createDefault();
 241                 $config->set('Core.DefinitionCache', null);
 242
 243                 // we shouldn't need a whitelist, because the bbcode converter
 244                 // will strip out any unsupported tags.
 245                 // $config->set('HTML.Allowed', 'p,b,a[href],i');
 246
 247                 $purifier = new HTMLPurifier($config);
 248                 $res['body'] = $purifier->purify($res['body']);
 249         }
 250
 251
 252         $res['body'] = html2bbcode($res['body']);
 253
 254
 255         $allow = $item->get_item_tags(NAMESPACE_DFRN,'comment-allow');
 256         if($allow && $allow[0]['data'] == 1)
 257                 $res['last-child'] = 1;
 258         else
 259                 $res['last-child'] = 0;
 260
 261         $rawcreated = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'published');
 262         if($rawcreated)
 263                 $res['created'] = unxmlify($rawcreated[0]['data']);
 264
 265         $rawlocation = $item->get_item_tags(NAMESPACE_DFRN, 'location');
 266         if($rawlocation)
 267                 $res['location'] = unxmlify($rawlocation[0]['data']);
 268
 269
 270         $rawedited = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'updated');
 271         if($rawedited)
 272                 $res['edited'] = unxmlify($rawcreated[0]['data']);
 273
 274         $rawowner = $item->get_item_tags(NAMESPACE_DFRN, 'owner');
 275         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'])
 276                 $res['owner-name'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']);
 277         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data'])
 278                 $res['owner-name'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']);
 279         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'])
 280                 $res['owner-link'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']);
 281         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data'])
 282                 $res['owner-link'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data']);
 283
 284         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'][0]['attribs']['']['rel'] == 'photo')
 285                 $res['owner-avatar'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'][0]['attribs']['']['href']);
 286         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['avatar'][0]['data'])
 287                 $res['owner-avatar'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['avatar'][0]['data']);
 288
 289         $rawverb = $item->get_item_tags(NAMESPACE_ACTIVITY, 'verb');
 290         // select between supported verbs
 291         if($rawverb)
 292                 $res['verb'] = unxmlify($rawverb[0]['data']);
 293
 294         $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'object');
 295         if($rawobj) {
 296                 $res['object-type'] = $rawobj[0]['object-type'][0]['data'];
 297                 $res['object'] = $rawobj[0];
 298         }
 299
 300         return $res;
 301 }
 302
 303 function post_remote($a,$arr) {
 304
 305 //print_r($arr);
 306
 307         if(! x($arr,'type'))
 308                 $arr['type'] = 'remote';
 309         $arr['wall'] = ((intval($arr['wall'])) ? 1 : 0);
 310         $arr['uri'] = notags(trim($arr['uri']));
 311         $arr['author-name'] = notags(trim($arr['author-name']));
 312         $arr['author-link'] = notags(trim($arr['author-link']));
 313         $arr['author-avatar'] = notags(trim($arr['author-avatar']));
 314         $arr['owner-name'] = notags(trim($arr['owner-name']));
 315         $arr['owner-link'] = notags(trim($arr['owner-link']));
 316         $arr['owner-avatar'] = notags(trim($arr['owner-avatar']));
 317         $arr['created'] = datetime_convert('UTC','UTC',$arr['created'],'Y-m-d H:i:s');
 318         $arr['edited'] = datetime_convert('UTC','UTC',$arr['edited'],'Y-m-d H:i:s');
 319         $arr['changed'] = datetime_convert();
 320         $arr['title'] = notags(trim($arr['title']));
 321         $arr['location'] = notags(trim($arr['location']));
 322         $arr['body'] = escape_tags(trim($arr['body']));
 323         $arr['last-child'] = intval($arr['last-child']);
 324         $arr['visible'] = 1;
 325         $arr['deleted'] = 0;
 326         $arr['parent-uri'] = notags(trim($arr['parent-uri']));
 327         $arr['verb'] = notags(trim($arr['verb']));
 328         $arr['object-type'] = notags(trim($arr['object-type']));
 329         $arr['object'] = trim($arr['object']);
 330
 331         $parent_id = 0;
 332         $parent_missing = false;
 333
 334         dbesc_array($arr);
 335
 336         $r = q("INSERT INTO `item` (`"
 337                         . implode("`, `", array_keys($arr))
 338                         . "`) VALUES ('"
 339                         . implode("', '", array_values($arr))
 340                         . "')" );
 341
 342         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 343                 dbesc($arr['parent-uri']),
 344                 intval($arr['uid'])
 345         );
 346
 347         if(count($r))
 348                 $parent_id = $r[0]['id'];
 349         else {
 350                 $parent_missing = true;
 351         }
 352
 353         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 354                 $arr['uri'],           // already dbesc'd
 355                 intval($arr['uid'])
 356         );
 357         if(count($r))
 358                 $current_post = $r[0]['id'];
 359         else
 360                 return 0;
 361
 362         if($parent_missing) {
 363
 364                 // perhaps the parent was deleted, but in any case, this thread is dead
 365                 // and unfortunately our brand new item now has to be destroyed
 366
 367                 q("DELETE FROM `item` WHERE `id` = %d LIMIT 1",
 368                         intval($current_post)
 369                 );
 370                 return 0;
 371         }
 372
 373         $r = q("UPDATE `item` SET `parent` = %d WHERE `id` = %d LIMIT 1",
 374                 intval($parent_id),
 375                 intval($current_post)
 376         );
 377
 378         return $current_post;
 379 }