mod/display.php

   1 <?php
   2
   3 function display_init(&$a) {
   4
   5         if((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
   6                 return;
   7         }
   8
   9         $nick = (($a->argc > 1) ? $a->argv[1] : '');
  10         $profiledata = array();
  11
  12         // If there is only one parameter, then check if this parameter could be a guid
  13         if ($a->argc == 2) {
  14                 $nick = "";
  15                 $itemuid = 0;
  16
  17                 // Does the local user have this item?
  18                 if (local_user()) {
  19                         $r = q("SELECT `id`, `parent`, `author-name`, `author-link`, `author-avatar`, `network`, `body`, `uid`, `owner-link` FROM `item`
  20                                 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
  21                                         AND `guid` = '%s' AND `uid` = %d", dbesc($a->argv[1]), local_user());
  22                         if (count($r)) {
  23                                 $nick = $a->user["nickname"];
  24                                 $itemuid = local_user();
  25                         }
  26                 }
  27
  28                 // Or is it anywhere on the server?
  29                 if ($nick == "") {
  30                         $r = q("SELECT `user`.`nickname`, `item`.`id`, `item`.`parent`, `item`.`author-name`,
  31                                 `item`.`author-link`, `item`.`author-avatar`, `item`.`network`, `item`.`uid`, `item`.`owner-link`, `item`.`body`
  32                                 FROM `item` INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
  33                                 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
  34                                         AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
  35                                         AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
  36                                         AND NOT `item`.`private` AND NOT `user`.`hidewall`
  37                                         AND `item`.`guid` = '%s'", dbesc($a->argv[1]));
  38                                 //      AND NOT `item`.`private` AND `item`.`wall`
  39                         if (count($r)) {
  40                                 $nick = $r[0]["nickname"];
  41                                 $itemuid = $r[0]["uid"];
  42                         }
  43                 }
  44
  45                 // Is it an item with uid=0?
  46                 if ($nick == "") {
  47                         $r = q("SELECT `item`.`id`, `item`.`parent`, `item`.`author-name`, `item`.`author-link`,
  48                                 `item`.`author-avatar`, `item`.`network`, `item`.`uid`, `item`.`owner-link`, `item`.`body`
  49                                 FROM `item` WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
  50                                         AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
  51                                         AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
  52                                         AND NOT `item`.`private` AND `item`.`uid` = 0
  53                                         AND `item`.`guid` = '%s'", dbesc($a->argv[1]));
  54                                 //      AND NOT `item`.`private` AND `item`.`wall`
  55                 }
  56                 if (count($r)) {
  57                         if ($r[0]["id"] != $r[0]["parent"])
  58                                 $r = q("SELECT `id`, `author-name`, `author-link`, `author-avatar`, `network`, `body`, `uid`, `owner-link` FROM `item`
  59                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
  60                                                 AND `id` = %d", $r[0]["parent"]);
  61
  62                         if (($itemuid != local_user()) AND local_user()) {
  63                                 // Do we know this contact but we haven't got this item?
  64                                 // Copy it to our local storage.
  65                                 $contactid = get_contact($r[0]['owner-link'], local_user());
  66                                 if ($contactid) {
  67                                         $item = q("SELECT * FROM `item` WHERE `id` = %d", intval($r[0]["id"]));
  68                                         unset($item[0]['id']);
  69                                         $item[0]['uid'] = local_user();
  70                                         $item[0]['origin'] = 0;
  71                                         $item[0]['contact-id'] = $contactid;
  72                                         $local_copy = item_store($item[0], false, false, true);
  73                                         logger("Stored local copy for post ".$item[0]['id']." under id ".$local_copy, LOGGER_DEBUG);
  74                                 }
  75                         }
  76
  77                         $profiledata = display_fetchauthor($a, $r[0]);
  78
  79                         if (strstr(normalise_link($profiledata["url"]), normalise_link($a->get_baseurl()))) {
  80                                 $nickname = str_replace(normalise_link($a->get_baseurl())."/profile/", "", normalise_link($profiledata["url"]));
  81
  82                                 if (($nickname != $a->user["nickname"])) {
  83                                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
  84                                                 INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
  85                                                 WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
  86                                                 dbesc($nickname)
  87                                         );
  88                                         if (count($r))
  89                                                 $profiledata = $r[0];
  90
  91                                         $profiledata["network"] = NETWORK_DFRN;
  92                                 } else
  93                                         $profiledata = array();
  94                         }
  95                 } else {
  96                         $a->error = 404;
  97                         notice( t('Item not found.') . EOL);
  98                         return;
  99                 }
 100         }
 101
 102         profile_load($a, $nick, 0, $profiledata);
 103
 104 }
 105
 106 function display_fetchauthor($a, $item) {
 107
 108         $profiledata = array();
 109         $profiledata["uid"] = -1;
 110         $profiledata["nickname"] = $item["author-name"];
 111         $profiledata["name"] = $item["author-name"];
 112         $profiledata["picdate"] = "";
 113         $profiledata["photo"] = $item["author-avatar"];
 114         $profiledata["url"] = $item["author-link"];
 115         $profiledata["network"] = $item["network"];
 116
 117         // Check for a repeated message
 118         $skip = false;
 119         $body = trim($item["body"]);
 120
 121         // Skip if it isn't a pure repeated messages
 122         // Does it start with a share?
 123         if (!$skip AND strpos($body, "[share") > 0)
 124                 $skip = true;
 125
 126         // Does it end with a share?
 127         if (!$skip AND (strlen($body) > (strrpos($body, "[/share]") + 8)))
 128                 $skip = true;
 129
 130         if (!$skip) {
 131                 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
 132                 // Skip if there is no shared message in there
 133                 if ($body == $attributes)
 134                         $skip = true;
 135         }
 136
 137         if (!$skip) {
 138                 $author = "";
 139                 preg_match("/author='(.*?)'/ism", $attributes, $matches);
 140                 if ($matches[1] != "")
 141                         $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 142
 143                 preg_match('/author="(.*?)"/ism', $attributes, $matches);
 144                 if ($matches[1] != "")
 145                         $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 146
 147                 $profile = "";
 148                 preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 149                 if ($matches[1] != "")
 150                         $profiledata["url"] = $matches[1];
 151
 152                 preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 153                 if ($matches[1] != "")
 154                         $profiledata["url"] = $matches[1];
 155
 156                 $avatar = "";
 157                 preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
 158                 if ($matches[1] != "")
 159                         $profiledata["photo"] = $matches[1];
 160
 161                 preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
 162                 if ($matches[1] != "")
 163                         $profiledata["photo"] = $matches[1];
 164
 165                 $profiledata["nickname"] = $profiledata["name"];
 166                 $profiledata["network"] = GetProfileUsername($profiledata["url"], "", false, true);
 167
 168                 $profiledata["address"] = "";
 169                 $profiledata["about"] = "";
 170         }
 171
 172         // Don't show details from Diaspora contacts if you don't follow the contact
 173         $showdetails = ($profiledata["network"] != NETWORK_DIASPORA);
 174
 175         // Fetching further contact data from the contact table
 176         $r = q("SELECT `uid`, `network`, `name`, `photo`, `nick`, `addr`, `location`, `about`, `gender`, `keywords`
 177                 FROM `contact` WHERE `nurl` = '%s' AND `uid` = %d AND `network` = '%s' AND `rel` IN (%d, %d)",
 178                 dbesc(normalise_link($profiledata["url"])), intval(local_user()), dbesc($item["network"]),
 179                 intval(CONTACT_IS_SHARING), intval(CONTACT_IS_FRIEND));
 180         if (!count($r))
 181                 $r = q("SELECT `uid`, `network`, `name`, `photo`, `nick`, `addr`, `location`, `about`, `gender`, `keywords`
 182                         FROM `contact` WHERE `nurl` = '%s' AND `uid` = %d AND `rel` IN (%d, %d)",
 183                         dbesc(normalise_link($profiledata["url"])), intval(local_user()),
 184                         intval(CONTACT_IS_SHARING), intval(CONTACT_IS_FRIEND));
 185
 186         if (count($r)) {
 187                 $profiledata["name"] = $r[0]["name"];
 188                 $profiledata["photo"] = $r[0]["photo"];
 189                 $profiledata["nickname"] = $r[0]["nick"];
 190                 $profiledata["addr"] = $r[0]["addr"];
 191                 $profiledata["keywords"] = $r[0]["keywords"];
 192                 $profiledata["network"] = $r[0]["network"];
 193
 194                 if (local_user() OR $showdetails) {
 195                         $showdetails = true;
 196                         $profiledata["address"] = $r[0]["location"];
 197                         $profiledata["about"] = $r[0]["about"];
 198                         $profiledata["gender"] = $r[0]["gender"];
 199                 }
 200         }
 201
 202         // Fetching profile data from global contacts
 203         if ($profiledata["network"] != NETWORK_FEED) {
 204                 $r = q("SELECT `name`, `photo`, `nick`, `addr`, `location`, `about`, `gender`, `keywords`, `network` FROM `gcontact` WHERE `nurl` = '%s'", dbesc(normalise_link($profiledata["url"])));
 205                 if (count($r)) {
 206                         $profiledata["name"] = $r[0]["name"];
 207                         $profiledata["photo"] = $r[0]["photo"];
 208                         $profiledata["nickname"] = $r[0]["nick"];
 209                         $profiledata["addr"] = $r[0]["addr"];
 210                         $profiledata["network"] = $r[0]["network"];
 211
 212                         if ($r[0]["keywords"])
 213                                 $profiledata["keywords"] = $r[0]["keywords"];
 214
 215                         if ($showdetails) {
 216                                 if ($r[0]["location"])
 217                                         $profiledata["address"] = $r[0]["location"];
 218
 219                                 if ($r[0]["about"])
 220                                         $profiledata["about"] = $r[0]["about"];
 221
 222                                 if ($r[0]["gender"])
 223                                         $profiledata["gender"] = $r[0]["gender"];
 224                         }
 225                 }
 226         }
 227
 228         if (local_user()) {
 229                 if (in_array($profiledata["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS)))
 230                         $profiledata["remoteconnect"] = $a->get_baseurl()."/follow?url=".urlencode($profiledata["url"]);
 231         } elseif ($profiledata["network"] == NETWORK_DFRN) {
 232                 $connect = str_replace("/profile/", "/dfrn_request/", $profiledata["url"]);
 233                 $profiledata["remoteconnect"] = $connect;
 234         }
 235
 236         return($profiledata);
 237 }
 238
 239 function display_content(&$a, $update = 0) {
 240
 241         if((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
 242                 notice( t('Public access denied.') . EOL);
 243                 return;
 244         }
 245
 246         require_once('include/security.php');
 247         require_once('include/conversation.php');
 248         require_once('include/acl_selectors.php');
 249
 250
 251         $o = '';
 252
 253         $a->page['htmlhead'] .= replace_macros(get_markup_template('display-head.tpl'), array());
 254
 255
 256         if($update) {
 257                 $nick = $_REQUEST['nick'];
 258         }
 259         else {
 260                 $nick = (($a->argc > 1) ? $a->argv[1] : '');
 261         }
 262
 263         if($update) {
 264                 $item_id = $_REQUEST['item_id'];
 265                 $a->profile = array('uid' => intval($update), 'profile_uid' => intval($update));
 266         }
 267         else {
 268                 $item_id = (($a->argc > 2) ? $a->argv[2] : 0);
 269
 270                 if ($a->argc == 2) {
 271                         $nick = "";
 272
 273                         if (local_user()) {
 274                                 $r = q("SELECT `id` FROM `item`
 275                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 276                                                 AND `guid` = '%s' AND `uid` = %d", dbesc($a->argv[1]), local_user());
 277                                 if (count($r)) {
 278                                         $item_id = $r[0]["id"];
 279                                         $nick = $a->user["nickname"];
 280                                 }
 281                         }
 282
 283                         if ($nick == "") {
 284                                 $r = q("SELECT `user`.`nickname`, `item`.`id` FROM `item` INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
 285                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 286                                                 AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
 287                                                 AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
 288                                                 AND NOT `item`.`private` AND NOT `user`.`hidewall`
 289                                                 AND `item`.`guid` = '%s'", dbesc($a->argv[1]));
 290                                         //      AND NOT `item`.`private` AND `item`.`wall`
 291                                 if (count($r)) {
 292                                         $item_id = $r[0]["id"];
 293                                         $nick = $r[0]["nickname"];
 294                                 }
 295                         }
 296                         if ($nick == "") {
 297                                 $r = q("SELECT `item`.`id` FROM `item`
 298                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 299                                                 AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
 300                                                 AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
 301                                                 AND NOT `item`.`private` AND `item`.`uid` = 0
 302                                                 AND `item`.`guid` = '%s'", dbesc($a->argv[1]));
 303                                         //      AND NOT `item`.`private` AND `item`.`wall`
 304                                 if (count($r)) {
 305                                         $item_id = $r[0]["id"];
 306                                 }
 307                         }
 308                 }
 309         }
 310
 311         if ($item_id AND !is_numeric($item_id)) {
 312                 $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 313                         dbesc($item_id), intval($a->profile['uid']));
 314                 if ($r)
 315                         $item_id = $r[0]["id"];
 316                 else
 317                         $item_id = false;
 318         }
 319
 320         if (!$item_id) {
 321                 $a->error = 404;
 322                 notice(t('Item not found.').EOL);
 323                 return;
 324         }
 325
 326
 327         $groups = array();
 328
 329         $contact = null;
 330         $remote_contact = false;
 331
 332         $contact_id = 0;
 333
 334         if(is_array($_SESSION['remote'])) {
 335                 foreach($_SESSION['remote'] as $v) {
 336                         if($v['uid'] == $a->profile['uid']) {
 337                                 $contact_id = $v['cid'];
 338                                 break;
 339                         }
 340                 }
 341         }
 342
 343         if($contact_id) {
 344                 $groups = init_groups_visitor($contact_id);
 345                 $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 346                         intval($contact_id),
 347                         intval($a->profile['uid'])
 348                 );
 349                 if(count($r)) {
 350                         $contact = $r[0];
 351                         $remote_contact = true;
 352                 }
 353         }
 354
 355         if(! $remote_contact) {
 356                 if(local_user()) {
 357                         $contact_id = $_SESSION['cid'];
 358                         $contact = $a->contact;
 359                 }
 360         }
 361
 362         $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` LIMIT 1",
 363                 intval($a->profile['uid'])
 364         );
 365         if(count($r))
 366                 $a->page_contact = $r[0];
 367
 368         $is_owner = ((local_user()) && (local_user() == $a->profile['profile_uid']) ? true : false);
 369
 370         if($a->profile['hidewall'] && (! $is_owner) && (! $remote_contact)) {
 371                 notice( t('Access to this profile has been restricted.') . EOL);
 372                 return;
 373         }
 374
 375         // We need the editor here to be able to reshare an item.
 376
 377         if ($is_owner) {
 378                 $x = array(
 379                         'is_owner' => true,
 380                         'allow_location' => $a->user['allow_location'],
 381                         'default_location' => $a->user['default-location'],
 382                         'nickname' => $a->user['nickname'],
 383                         'lockstate' => ( (is_array($a->user)) && ((strlen($a->user['allow_cid'])) || (strlen($a->user['allow_gid'])) || (strlen($a->user['deny_cid'])) || (strlen($a->user['deny_gid']))) ? 'lock' : 'unlock'),
 384                         'acl' => populate_acl($a->user, true),
 385                         'bang' => '',
 386                         'visitor' => 'block',
 387                         'profile_uid' => local_user(),
 388                         'acl_data' => construct_acl_data($a, $a->user), // For non-Javascript ACL selector
 389                 );
 390                 $o .= status_editor($a,$x,0,true);
 391         }
 392
 393         $sql_extra = item_permissions_sql($a->profile['uid'],$remote_contact,$groups);
 394
 395         if($update) {
 396
 397                 $r = q("SELECT `id` FROM `item` WHERE `item`.`uid` = %d
 398                         AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = %d)
 399                         $sql_extra AND `unseen`",
 400                         intval($a->profile['uid']),
 401                         intval($item_id)
 402                 );
 403
 404                 if(!$r)
 405                         return '';
 406         }
 407
 408         $r = q("SELECT `item`.*, `item`.`id` AS `item_id`,  `item`.`network` AS `item_network`,
 409                 `contact`.`name`, `contact`.`photo`, `contact`.`url`, `contact`.`rel`,
 410                 `contact`.`network`, `contact`.`thumb`, `contact`.`self`, `contact`.`writable`,
 411                 `contact`.`id` AS `cid`, `contact`.`uid` AS `contact-uid`
 412                 FROM `item` INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
 413                 AND NOT `contact`.`blocked` AND NOT `contact`.`pending`
 414                 WHERE `item`.`uid` = %d AND `item`.`visible` AND NOT `item`.`deleted`
 415                 AND NOT `item`.`moderated`
 416                 AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = %d)
 417                 $sql_extra
 418                 ORDER BY `parent` DESC, `gravity` ASC, `id` ASC",
 419                 intval($a->profile['uid']),
 420                 intval($item_id)
 421         );
 422
 423         if(!$r && local_user()) {
 424                 // Check if this is another person's link to a post that we have
 425                 $r = q("SELECT `item`.uri FROM `item`
 426                         WHERE (`item`.`id` = %d OR `item`.`uri` = '%s')
 427                         LIMIT 1",
 428                         intval($item_id),
 429                         dbesc($item_id)
 430                 );
 431                 if($r) {
 432                         $item_uri = $r[0]['uri'];
 433
 434                         $r = q("SELECT `item`.*, `item`.`id` AS `item_id`,  `item`.`network` AS `item_network`,
 435                                 `contact`.`name`, `contact`.`photo`, `contact`.`url`, `contact`.`rel`,
 436                                 `contact`.`network`, `contact`.`thumb`, `contact`.`self`, `contact`.`writable`,
 437                                 `contact`.`id` AS `cid`, `contact`.`uid` AS `contact-uid`
 438                                 FROM `item` INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
 439                                 AND NOT `contact`.`blocked` AND NOT `contact`.`pending`
 440                                 WHERE `item`.`uid` = %d AND `item`.`visible` AND NOT `item`.`deleted`
 441                                 AND NOT `item`.`moderated`
 442                                 AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `uri` = '%s' AND uid = %d)
 443                                 ORDER BY `parent` DESC, `gravity` ASC, `id` ASC ",
 444                                 intval(local_user()),
 445                                 dbesc($item_uri),
 446                                 intval(local_user())
 447                         );
 448                 }
 449         }
 450
 451
 452         if($r) {
 453
 454                 if((local_user()) && (local_user() == $a->profile['uid'])) {
 455                         $unseen = q("SELECT `id` FROM `item` WHERE `unseen` AND `parent` = %d",
 456                                         intval($r[0]['parent']));
 457
 458                         if ($unseen)
 459                                 q("UPDATE `item` SET `unseen` = 0
 460                                         WHERE `parent` = %d AND `unseen`",
 461                                         intval($r[0]['parent'])
 462                                 );
 463                 }
 464
 465                 $items = conv_sort($r,"`commented`");
 466
 467                 if(!$update)
 468                         $o .= "<script> var netargs = '?f=&nick=" . $nick . "&item_id=" . $item_id . "'; </script>";
 469                 $o .= conversation($a,$items,'display', $update);
 470
 471                 // Preparing the meta header
 472                 require_once('include/bbcode.php');
 473                 require_once("include/html2plain.php");
 474                 $description = trim(html2plain(bbcode($r[0]["body"], false, false), 0, true));
 475                 $title = trim(html2plain(bbcode($r[0]["title"], false, false), 0, true));
 476                 $author_name = $r[0]["author-name"];
 477
 478                 $image = "";
 479                 if ($image == "")
 480                         $image = $r[0]["thumb"];
 481
 482                 if ($title == "")
 483                         $title = $author_name;
 484
 485                 $description = htmlspecialchars($description, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 486                 $title = htmlspecialchars($title, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 487                 $author_name = htmlspecialchars($author_name, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 488
 489                 //<meta name="keywords" content="">
 490                 $a->page['htmlhead'] .= '<meta name="author" content="'.$author_name.'" />'."\n";
 491                 $a->page['htmlhead'] .= '<meta name="title" content="'.$title.'" />'."\n";
 492                 $a->page['htmlhead'] .= '<meta name="fulltitle" content="'.$title.'" />'."\n";
 493                 $a->page['htmlhead'] .= '<meta name="description" content="'.$description.'" />'."\n";
 494
 495                 // Schema.org microdata
 496                 $a->page['htmlhead'] .= '<meta itemprop="name" content="'.$title.'" />'."\n";
 497                 $a->page['htmlhead'] .= '<meta itemprop="description" content="'.$description.'" />'."\n";
 498                 $a->page['htmlhead'] .= '<meta itemprop="image" content="'.$image.'" />'."\n";
 499                 $a->page['htmlhead'] .= '<meta itemprop="author" content="'.$author_name.'" />'."\n";
 500
 501                 // Twitter cards
 502                 $a->page['htmlhead'] .= '<meta name="twitter:card" content="summary" />'."\n";
 503                 $a->page['htmlhead'] .= '<meta name="twitter:title" content="'.$title.'" />'."\n";
 504                 $a->page['htmlhead'] .= '<meta name="twitter:description" content="'.$description.'" />'."\n";
 505                 $a->page['htmlhead'] .= '<meta name="twitter:image" content="'.$image.'" />'."\n";
 506                 $a->page['htmlhead'] .= '<meta name="twitter:url" content="'.$r[0]["plink"].'" />'."\n";
 507
 508                 // Dublin Core
 509                 $a->page['htmlhead'] .= '<meta name="DC.title" content="'.$title.'" />'."\n";
 510                 $a->page['htmlhead'] .= '<meta name="DC.description" content="'.$description.'" />'."\n";
 511
 512                 // Open Graph
 513                 $a->page['htmlhead'] .= '<meta property="og:type" content="website" />'."\n";
 514                 $a->page['htmlhead'] .= '<meta property="og:title" content="'.$title.'" />'."\n";
 515                 $a->page['htmlhead'] .= '<meta property="og:image" content="'.$image.'" />'."\n";
 516                 $a->page['htmlhead'] .= '<meta property="og:url" content="'.$r[0]["plink"].'" />'."\n";
 517                 $a->page['htmlhead'] .= '<meta property="og:description" content="'.$description.'" />'."\n";
 518                 $a->page['htmlhead'] .= '<meta name="og:article:author" content="'.$author_name.'" />'."\n";
 519                 // article:tag
 520
 521                 return $o;
 522         }
 523
 524         $r = q("SELECT `id`,`deleted` FROM `item` WHERE `id` = '%s' OR `uri` = '%s' LIMIT 1",
 525                 dbesc($item_id),
 526                 dbesc($item_id)
 527         );
 528         if($r) {
 529                 if($r[0]['deleted']) {
 530                         notice( t('Item has been removed.') . EOL );
 531                 }
 532                 else {
 533                         notice( t('Permission denied.') . EOL );
 534                 }
 535         }
 536         else {
 537                 notice( t('Item not found.') . EOL );
 538         }
 539
 540         return $o;
 541 }
 542