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 the wohle thread to our local storage so that we can interact.
  65                                 // We really should change this need for the future since it scales very bad.
  66                                 $contactid = get_contact($r[0]['owner-link'], local_user());
  67                                 if ($contactid) {
  68                                         $items = q("SELECT * FROM `item` WHERE `parent` = %d ORDER BY `id`", intval($r[0]["id"]));
  69                                         foreach ($items AS $item) {
  70                                                 $itemcontactid = get_contact($item['owner-link'], local_user());
  71                                                 if (!$itemcontactid)
  72                                                         $itemcontactid = $contactid;
  73
  74                                                 unset($item['id']);
  75                                                 $item['uid'] = local_user();
  76                                                 $item['origin'] = 0;
  77                                                 $item['contact-id'] = $itemcontactid;
  78                                                 $local_copy = item_store($item, false, false, true);
  79                                                 logger("Stored local copy for post ".$item['guid']." under id ".$local_copy, LOGGER_DEBUG);
  80                                         }
  81                                 }
  82                         }
  83
  84                         $profiledata = display_fetchauthor($a, $r[0]);
  85
  86                         if (strstr(normalise_link($profiledata["url"]), normalise_link($a->get_baseurl()))) {
  87                                 $nickname = str_replace(normalise_link($a->get_baseurl())."/profile/", "", normalise_link($profiledata["url"]));
  88
  89                                 if (($nickname != $a->user["nickname"])) {
  90                                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
  91                                                 INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
  92                                                 WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
  93                                                 dbesc($nickname)
  94                                         );
  95                                         if (count($r))
  96                                                 $profiledata = $r[0];
  97
  98                                         $profiledata["network"] = NETWORK_DFRN;
  99                                 } else
 100                                         $profiledata = array();
 101                         }
 102                 } else {
 103                         $a->error = 404;
 104                         notice( t('Item not found.') . EOL);
 105                         return;
 106                 }
 107         }
 108
 109         profile_load($a, $nick, 0, $profiledata);
 110
 111 }
 112
 113 function display_fetchauthor($a, $item) {
 114
 115         $profiledata = array();
 116         $profiledata["uid"] = -1;
 117         $profiledata["nickname"] = $item["author-name"];
 118         $profiledata["name"] = $item["author-name"];
 119         $profiledata["picdate"] = "";
 120         $profiledata["photo"] = $item["author-avatar"];
 121         $profiledata["url"] = $item["author-link"];
 122         $profiledata["network"] = $item["network"];
 123
 124         // Check for a repeated message
 125         $skip = false;
 126         $body = trim($item["body"]);
 127
 128         // Skip if it isn't a pure repeated messages
 129         // Does it start with a share?
 130         if (!$skip AND strpos($body, "[share") > 0)
 131                 $skip = true;
 132
 133         // Does it end with a share?
 134         if (!$skip AND (strlen($body) > (strrpos($body, "[/share]") + 8)))
 135                 $skip = true;
 136
 137         if (!$skip) {
 138                 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
 139                 // Skip if there is no shared message in there
 140                 if ($body == $attributes)
 141                         $skip = true;
 142         }
 143
 144         if (!$skip) {
 145                 $author = "";
 146                 preg_match("/author='(.*?)'/ism", $attributes, $matches);
 147                 if ($matches[1] != "")
 148                         $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 149
 150                 preg_match('/author="(.*?)"/ism', $attributes, $matches);
 151                 if ($matches[1] != "")
 152                         $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 153
 154                 $profile = "";
 155                 preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 156                 if ($matches[1] != "")
 157                         $profiledata["url"] = $matches[1];
 158
 159                 preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 160                 if ($matches[1] != "")
 161                         $profiledata["url"] = $matches[1];
 162
 163                 $avatar = "";
 164                 preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
 165                 if ($matches[1] != "")
 166                         $profiledata["photo"] = $matches[1];
 167
 168                 preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
 169                 if ($matches[1] != "")
 170                         $profiledata["photo"] = $matches[1];
 171
 172                 $profiledata["nickname"] = $profiledata["name"];
 173                 $profiledata["network"] = GetProfileUsername($profiledata["url"], "", false, true);
 174
 175                 $profiledata["address"] = "";
 176                 $profiledata["about"] = "";
 177         }
 178
 179         // Don't show details from Diaspora contacts if you don't follow the contact
 180         $showdetails = ($profiledata["network"] != NETWORK_DIASPORA);
 181
 182         // Fetching further contact data from the contact table
 183         $r = q("SELECT `uid`, `network`, `name`, `photo`, `nick`, `addr`, `location`, `about`, `gender`, `keywords`
 184                 FROM `contact` WHERE `nurl` = '%s' AND `uid` = %d AND `network` = '%s' AND `rel` IN (%d, %d)",
 185                 dbesc(normalise_link($profiledata["url"])), intval(local_user()), dbesc($item["network"]),
 186                 intval(CONTACT_IS_SHARING), intval(CONTACT_IS_FRIEND));
 187         if (!count($r))
 188                 $r = q("SELECT `uid`, `network`, `name`, `photo`, `nick`, `addr`, `location`, `about`, `gender`, `keywords`
 189                         FROM `contact` WHERE `nurl` = '%s' AND `uid` = %d AND `rel` IN (%d, %d)",
 190                         dbesc(normalise_link($profiledata["url"])), intval(local_user()),
 191                         intval(CONTACT_IS_SHARING), intval(CONTACT_IS_FRIEND));
 192
 193         if (count($r)) {
 194                 $profiledata["name"] = $r[0]["name"];
 195                 $profiledata["photo"] = $r[0]["photo"];
 196                 $profiledata["nickname"] = $r[0]["nick"];
 197                 $profiledata["addr"] = $r[0]["addr"];
 198                 $profiledata["keywords"] = $r[0]["keywords"];
 199                 $profiledata["network"] = $r[0]["network"];
 200
 201                 if (local_user() OR $showdetails) {
 202                         $showdetails = true;
 203                         $profiledata["address"] = $r[0]["location"];
 204                         $profiledata["about"] = $r[0]["about"];
 205                         $profiledata["gender"] = $r[0]["gender"];
 206                 }
 207         }
 208
 209         // Fetching profile data from global contacts
 210         if ($profiledata["network"] != NETWORK_FEED) {
 211                 $r = q("SELECT `name`, `photo`, `nick`, `addr`, `location`, `about`, `gender`, `keywords`, `network` FROM `gcontact` WHERE `nurl` = '%s'", dbesc(normalise_link($profiledata["url"])));
 212                 if (count($r)) {
 213                         $profiledata["name"] = $r[0]["name"];
 214                         $profiledata["photo"] = $r[0]["photo"];
 215                         $profiledata["nickname"] = $r[0]["nick"];
 216                         $profiledata["addr"] = $r[0]["addr"];
 217                         $profiledata["network"] = $r[0]["network"];
 218
 219                         if ($r[0]["keywords"])
 220                                 $profiledata["keywords"] = $r[0]["keywords"];
 221
 222                         if ($showdetails) {
 223                                 if ($r[0]["location"])
 224                                         $profiledata["address"] = $r[0]["location"];
 225
 226                                 if ($r[0]["about"])
 227                                         $profiledata["about"] = $r[0]["about"];
 228
 229                                 if ($r[0]["gender"])
 230                                         $profiledata["gender"] = $r[0]["gender"];
 231                         }
 232                 }
 233         }
 234
 235         if (local_user()) {
 236                 if (in_array($profiledata["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS)))
 237                         $profiledata["remoteconnect"] = $a->get_baseurl()."/follow?url=".urlencode($profiledata["url"]);
 238         } elseif ($profiledata["network"] == NETWORK_DFRN) {
 239                 $connect = str_replace("/profile/", "/dfrn_request/", $profiledata["url"]);
 240                 $profiledata["remoteconnect"] = $connect;
 241         }
 242
 243         return($profiledata);
 244 }
 245
 246 function display_content(&$a, $update = 0) {
 247
 248         if((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
 249                 notice( t('Public access denied.') . EOL);
 250                 return;
 251         }
 252
 253         require_once('include/security.php');
 254         require_once('include/conversation.php');
 255         require_once('include/acl_selectors.php');
 256
 257
 258         $o = '';
 259
 260         $a->page['htmlhead'] .= replace_macros(get_markup_template('display-head.tpl'), array());
 261
 262
 263         if($update) {
 264                 $nick = $_REQUEST['nick'];
 265         }
 266         else {
 267                 $nick = (($a->argc > 1) ? $a->argv[1] : '');
 268         }
 269
 270         if($update) {
 271                 $item_id = $_REQUEST['item_id'];
 272                 $a->profile = array('uid' => intval($update), 'profile_uid' => intval($update));
 273         }
 274         else {
 275                 $item_id = (($a->argc > 2) ? $a->argv[2] : 0);
 276
 277                 if ($a->argc == 2) {
 278                         $nick = "";
 279
 280                         if (local_user()) {
 281                                 $r = q("SELECT `id` FROM `item`
 282                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 283                                                 AND `guid` = '%s' AND `uid` = %d", dbesc($a->argv[1]), local_user());
 284                                 if (count($r)) {
 285                                         $item_id = $r[0]["id"];
 286                                         $nick = $a->user["nickname"];
 287                                 }
 288                         }
 289
 290                         if ($nick == "") {
 291                                 $r = q("SELECT `user`.`nickname`, `item`.`id` FROM `item` INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
 292                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 293                                                 AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
 294                                                 AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
 295                                                 AND NOT `item`.`private` AND NOT `user`.`hidewall`
 296                                                 AND `item`.`guid` = '%s'", dbesc($a->argv[1]));
 297                                         //      AND NOT `item`.`private` AND `item`.`wall`
 298                                 if (count($r)) {
 299                                         $item_id = $r[0]["id"];
 300                                         $nick = $r[0]["nickname"];
 301                                 }
 302                         }
 303                         if ($nick == "") {
 304                                 $r = q("SELECT `item`.`id` FROM `item`
 305                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 306                                                 AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
 307                                                 AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
 308                                                 AND NOT `item`.`private` AND `item`.`uid` = 0
 309                                                 AND `item`.`guid` = '%s'", dbesc($a->argv[1]));
 310                                         //      AND NOT `item`.`private` AND `item`.`wall`
 311                                 if (count($r)) {
 312                                         $item_id = $r[0]["id"];
 313                                 }
 314                         }
 315                 }
 316         }
 317
 318         if ($item_id AND !is_numeric($item_id)) {
 319                 $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 320                         dbesc($item_id), intval($a->profile['uid']));
 321                 if ($r)
 322                         $item_id = $r[0]["id"];
 323                 else
 324                         $item_id = false;
 325         }
 326
 327         if (!$item_id) {
 328                 $a->error = 404;
 329                 notice(t('Item not found.').EOL);
 330                 return;
 331         }
 332
 333
 334         $groups = array();
 335
 336         $contact = null;
 337         $remote_contact = false;
 338
 339         $contact_id = 0;
 340
 341         if(is_array($_SESSION['remote'])) {
 342                 foreach($_SESSION['remote'] as $v) {
 343                         if($v['uid'] == $a->profile['uid']) {
 344                                 $contact_id = $v['cid'];
 345                                 break;
 346                         }
 347                 }
 348         }
 349
 350         if($contact_id) {
 351                 $groups = init_groups_visitor($contact_id);
 352                 $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 353                         intval($contact_id),
 354                         intval($a->profile['uid'])
 355                 );
 356                 if(count($r)) {
 357                         $contact = $r[0];
 358                         $remote_contact = true;
 359                 }
 360         }
 361
 362         if(! $remote_contact) {
 363                 if(local_user()) {
 364                         $contact_id = $_SESSION['cid'];
 365                         $contact = $a->contact;
 366                 }
 367         }
 368
 369         $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` LIMIT 1",
 370                 intval($a->profile['uid'])
 371         );
 372         if(count($r))
 373                 $a->page_contact = $r[0];
 374
 375         $is_owner = ((local_user()) && (local_user() == $a->profile['profile_uid']) ? true : false);
 376
 377         if($a->profile['hidewall'] && (! $is_owner) && (! $remote_contact)) {
 378                 notice( t('Access to this profile has been restricted.') . EOL);
 379                 return;
 380         }
 381
 382         // We need the editor here to be able to reshare an item.
 383
 384         if ($is_owner) {
 385                 $x = array(
 386                         'is_owner' => true,
 387                         'allow_location' => $a->user['allow_location'],
 388                         'default_location' => $a->user['default-location'],
 389                         'nickname' => $a->user['nickname'],
 390                         'lockstate' => ( (is_array($a->user)) && ((strlen($a->user['allow_cid'])) || (strlen($a->user['allow_gid'])) || (strlen($a->user['deny_cid'])) || (strlen($a->user['deny_gid']))) ? 'lock' : 'unlock'),
 391                         'acl' => populate_acl($a->user, true),
 392                         'bang' => '',
 393                         'visitor' => 'block',
 394                         'profile_uid' => local_user(),
 395                         'acl_data' => construct_acl_data($a, $a->user), // For non-Javascript ACL selector
 396                 );
 397                 $o .= status_editor($a,$x,0,true);
 398         }
 399
 400         $sql_extra = item_permissions_sql($a->profile['uid'],$remote_contact,$groups);
 401
 402         if($update) {
 403
 404                 $r = q("SELECT `id` FROM `item` WHERE `item`.`uid` = %d
 405                         AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = %d)
 406                         $sql_extra AND `unseen`",
 407                         intval($a->profile['uid']),
 408                         intval($item_id)
 409                 );
 410
 411                 if(!$r)
 412                         return '';
 413         }
 414
 415         $r = q("SELECT `item`.*, `item`.`id` AS `item_id`,  `item`.`network` AS `item_network`,
 416                 `contact`.`name`, `contact`.`photo`, `contact`.`url`, `contact`.`rel`,
 417                 `contact`.`network`, `contact`.`thumb`, `contact`.`self`, `contact`.`writable`,
 418                 `contact`.`id` AS `cid`, `contact`.`uid` AS `contact-uid`
 419                 FROM `item` INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
 420                 AND NOT `contact`.`blocked` AND NOT `contact`.`pending`
 421                 WHERE `item`.`uid` = %d AND `item`.`visible` AND NOT `item`.`deleted`
 422                 AND NOT `item`.`moderated`
 423                 AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = %d)
 424                 $sql_extra
 425                 ORDER BY `parent` DESC, `gravity` ASC, `id` ASC",
 426                 intval($a->profile['uid']),
 427                 intval($item_id)
 428         );
 429
 430         if(!$r && local_user()) {
 431                 // Check if this is another person's link to a post that we have
 432                 $r = q("SELECT `item`.uri FROM `item`
 433                         WHERE (`item`.`id` = %d OR `item`.`uri` = '%s')
 434                         LIMIT 1",
 435                         intval($item_id),
 436                         dbesc($item_id)
 437                 );
 438                 if($r) {
 439                         $item_uri = $r[0]['uri'];
 440
 441                         $r = q("SELECT `item`.*, `item`.`id` AS `item_id`,  `item`.`network` AS `item_network`,
 442                                 `contact`.`name`, `contact`.`photo`, `contact`.`url`, `contact`.`rel`,
 443                                 `contact`.`network`, `contact`.`thumb`, `contact`.`self`, `contact`.`writable`,
 444                                 `contact`.`id` AS `cid`, `contact`.`uid` AS `contact-uid`
 445                                 FROM `item` INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
 446                                 AND NOT `contact`.`blocked` AND NOT `contact`.`pending`
 447                                 WHERE `item`.`uid` = %d AND `item`.`visible` AND NOT `item`.`deleted`
 448                                 AND NOT `item`.`moderated`
 449                                 AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `uri` = '%s' AND uid = %d)
 450                                 ORDER BY `parent` DESC, `gravity` ASC, `id` ASC ",
 451                                 intval(local_user()),
 452                                 dbesc($item_uri),
 453                                 intval(local_user())
 454                         );
 455                 }
 456         }
 457
 458
 459         if($r) {
 460
 461                 if((local_user()) && (local_user() == $a->profile['uid'])) {
 462                         $unseen = q("SELECT `id` FROM `item` WHERE `unseen` AND `parent` = %d",
 463                                         intval($r[0]['parent']));
 464
 465                         if ($unseen)
 466                                 q("UPDATE `item` SET `unseen` = 0
 467                                         WHERE `parent` = %d AND `unseen`",
 468                                         intval($r[0]['parent'])
 469                                 );
 470                 }
 471
 472                 $items = conv_sort($r,"`commented`");
 473
 474                 if(!$update)
 475                         $o .= "<script> var netargs = '?f=&nick=" . $nick . "&item_id=" . $item_id . "'; </script>";
 476                 $o .= conversation($a,$items,'display', $update);
 477
 478                 // Preparing the meta header
 479                 require_once('include/bbcode.php');
 480                 require_once("include/html2plain.php");
 481                 $description = trim(html2plain(bbcode($r[0]["body"], false, false), 0, true));
 482                 $title = trim(html2plain(bbcode($r[0]["title"], false, false), 0, true));
 483                 $author_name = $r[0]["author-name"];
 484
 485                 $image = "";
 486                 if ($image == "")
 487                         $image = $r[0]["thumb"];
 488
 489                 if ($title == "")
 490                         $title = $author_name;
 491
 492                 $description = htmlspecialchars($description, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 493                 $title = htmlspecialchars($title, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 494                 $author_name = htmlspecialchars($author_name, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 495
 496                 //<meta name="keywords" content="">
 497                 $a->page['htmlhead'] .= '<meta name="author" content="'.$author_name.'" />'."\n";
 498                 $a->page['htmlhead'] .= '<meta name="title" content="'.$title.'" />'."\n";
 499                 $a->page['htmlhead'] .= '<meta name="fulltitle" content="'.$title.'" />'."\n";
 500                 $a->page['htmlhead'] .= '<meta name="description" content="'.$description.'" />'."\n";
 501
 502                 // Schema.org microdata
 503                 $a->page['htmlhead'] .= '<meta itemprop="name" content="'.$title.'" />'."\n";
 504                 $a->page['htmlhead'] .= '<meta itemprop="description" content="'.$description.'" />'."\n";
 505                 $a->page['htmlhead'] .= '<meta itemprop="image" content="'.$image.'" />'."\n";
 506                 $a->page['htmlhead'] .= '<meta itemprop="author" content="'.$author_name.'" />'."\n";
 507
 508                 // Twitter cards
 509                 $a->page['htmlhead'] .= '<meta name="twitter:card" content="summary" />'."\n";
 510                 $a->page['htmlhead'] .= '<meta name="twitter:title" content="'.$title.'" />'."\n";
 511                 $a->page['htmlhead'] .= '<meta name="twitter:description" content="'.$description.'" />'."\n";
 512                 $a->page['htmlhead'] .= '<meta name="twitter:image" content="'.$image.'" />'."\n";
 513                 $a->page['htmlhead'] .= '<meta name="twitter:url" content="'.$r[0]["plink"].'" />'."\n";
 514
 515                 // Dublin Core
 516                 $a->page['htmlhead'] .= '<meta name="DC.title" content="'.$title.'" />'."\n";
 517                 $a->page['htmlhead'] .= '<meta name="DC.description" content="'.$description.'" />'."\n";
 518
 519                 // Open Graph
 520                 $a->page['htmlhead'] .= '<meta property="og:type" content="website" />'."\n";
 521                 $a->page['htmlhead'] .= '<meta property="og:title" content="'.$title.'" />'."\n";
 522                 $a->page['htmlhead'] .= '<meta property="og:image" content="'.$image.'" />'."\n";
 523                 $a->page['htmlhead'] .= '<meta property="og:url" content="'.$r[0]["plink"].'" />'."\n";
 524                 $a->page['htmlhead'] .= '<meta property="og:description" content="'.$description.'" />'."\n";
 525                 $a->page['htmlhead'] .= '<meta name="og:article:author" content="'.$author_name.'" />'."\n";
 526                 // article:tag
 527
 528                 return $o;
 529         }
 530
 531         $r = q("SELECT `id`,`deleted` FROM `item` WHERE `id` = '%s' OR `uri` = '%s' LIMIT 1",
 532                 dbesc($item_id),
 533                 dbesc($item_id)
 534         );
 535         if($r) {
 536                 if($r[0]['deleted']) {
 537                         notice( t('Item has been removed.') . EOL );
 538                 }
 539                 else {
 540                         notice( t('Permission denied.') . EOL );
 541                 }
 542         }
 543         else {
 544                 notice( t('Item not found.') . EOL );
 545         }
 546
 547         return $o;
 548 }
 549