]> git.mxchange.org Git - friendica.git/blobdiff - mod/display.php
Merge pull request #3344 from tobiasd/20170412-doc
[friendica.git] / mod / display.php
index edbadbc75a86f2a563613f60cee88fb7e5b50c91..1f1fd112048f63e31077448ebde723341f39bdf9 100644 (file)
 <?php
 
+function display_init(App $a) {
 
-function display_content(&$a) {
-
-       $o = '<div id="live-display"></div>' . "\r\n";
+       if ((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
+               return;
+       }
 
        $nick = (($a->argc > 1) ? $a->argv[1] : '');
-       profile_load($a,$nick);
+       $profiledata = array();
+
+       // If there is only one parameter, then check if this parameter could be a guid
+       if ($a->argc == 2) {
+               $nick = "";
+               $itemuid = 0;
+
+               // Does the local user have this item?
+               if (local_user()) {
+                       $r = qu("SELECT `id`, `parent`, `author-name`, `author-link`, `author-avatar`, `network`, `body`, `uid`, `owner-link` FROM `item`
+                               WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
+                                       AND `guid` = '%s' AND `uid` = %d", dbesc($a->argv[1]), local_user());
+                       if (dbm::is_result($r)) {
+                               $nick = $a->user["nickname"];
+                               $itemuid = local_user();
+                       }
+               }
 
-       $item_id = (($a->argc > 2) ? intval($a->argv[2]) : 0);
+               // Or is it anywhere on the server?
+               if ($nick == "") {
+                       $r = qu("SELECT `user`.`nickname`, `item`.`id`, `item`.`parent`, `item`.`author-name`,
+                               `item`.`author-link`, `item`.`author-avatar`, `item`.`network`, `item`.`uid`, `item`.`owner-link`, `item`.`body`
+                               FROM `item` STRAIGHT_JOIN `user` ON `user`.`uid` = `item`.`uid`
+                               WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
+                                       AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
+                                       AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
+                                       AND NOT `item`.`private` AND NOT `user`.`hidewall`
+                                       AND `item`.`guid` = '%s'", dbesc($a->argv[1]));
+                       if (dbm::is_result($r)) {
+                               $nick = $r[0]["nickname"];
+                               $itemuid = $r[0]["uid"];
+                       }
+               }
 
-       if(! $item_id) {
-               $a->error = 404;
-               notice( t('Item not found.') . EOL);
-               return;
+               // Is it an item with uid=0?
+               if ($nick == "") {
+                       $r = qu("SELECT `item`.`id`, `item`.`parent`, `item`.`author-name`, `item`.`author-link`,
+                               `item`.`author-avatar`, `item`.`network`, `item`.`uid`, `item`.`owner-link`, `item`.`body`
+                               FROM `item` WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
+                                       AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
+                                       AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
+                                       AND NOT `item`.`private` AND `item`.`uid` = 0
+                                       AND `item`.`guid` = '%s'", dbesc($a->argv[1]));
+               }
+               if (dbm::is_result($r)) {
+                       if ($r[0]["id"] != $r[0]["parent"]) {
+                               $r = qu("SELECT `id`, `author-name`, `author-link`, `author-avatar`, `network`, `body`, `uid`, `owner-link` FROM `item`
+                                       WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
+                                               AND `id` = %d", $r[0]["parent"]);
+                       }
+                       if (($itemuid != local_user()) AND local_user()) {
+                               // Do we know this contact but we haven't got this item?
+                               // Copy the wohle thread to our local storage so that we can interact.
+                               // We really should change this need for the future since it scales very bad.
+                               $contactid = get_contact($r[0]['owner-link'], local_user());
+                               if ($contactid) {
+                                       $items = qu("SELECT * FROM `item` WHERE `parent` = %d ORDER BY `id`", intval($r[0]["id"]));
+                                       foreach ($items AS $item) {
+                                               $itemcontactid = get_contact($item['owner-link'], local_user());
+                                               if (!$itemcontactid) {
+                                                       $itemcontactid = $contactid;
+                                               }
+                                               unset($item['id']);
+                                               $item['uid'] = local_user();
+                                               $item['origin'] = 0;
+                                               $item['contact-id'] = $itemcontactid;
+                                               $local_copy = item_store($item, false, false, true);
+                                               logger("Stored local copy for post ".$item['guid']." under id ".$local_copy, LOGGER_DEBUG);
+                                       }
+                               }
+                       }
+
+                       $profiledata = display_fetchauthor($a, $r[0]);
+
+                       if (strstr(normalise_link($profiledata["url"]), normalise_link(App::get_baseurl()))) {
+                               $nickname = str_replace(normalise_link(App::get_baseurl())."/profile/", "", normalise_link($profiledata["url"]));
+
+                               if (($nickname != $a->user["nickname"])) {
+                                       $r = qu("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
+                                               INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
+                                               WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
+                                               dbesc($nickname)
+                                       );
+                                       if (dbm::is_result($r)) {
+                                               $profiledata = $r[0];
+                                       }
+                                       $profiledata["network"] = NETWORK_DFRN;
+                               } else {
+                                       $profiledata = array();
+                               }
+                       }
+               } else {
+                       $a->error = 404;
+                       notice(t('Item not found.') . EOL);
+                       return;
+               }
        }
 
-       require_once("include/bbcode.php");
-       require_once('include/security.php');
+       profile_load($a, $nick, 0, $profiledata);
 
+}
 
-       $groups = array();
+function display_fetchauthor($a, $item) {
 
-       $tab = 'posts';
+       require_once("include/Contact.php");
 
+       $profiledata = array();
+       $profiledata["uid"] = -1;
+       $profiledata["nickname"] = $item["author-name"];
+       $profiledata["name"] = $item["author-name"];
+       $profiledata["picdate"] = "";
+       $profiledata["photo"] = $item["author-avatar"];
+       $profiledata["url"] = $item["author-link"];
+       $profiledata["network"] = $item["network"];
 
-       $contact = null;
-       $remote_contact = false;
+       // Check for a repeated message
+       $skip = false;
+       $body = trim($item["body"]);
 
-       if(remote_user()) {
-               $contact_id = $_SESSION['visitor_id'];
-               $groups = init_groups_visitor($contact_id);
-               $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
-                       intval($contact_id),
-                       intval($a->profile['uid'])
-               );
-               if(count($r)) {
-                       $contact = $r[0];
-                       $remote_contact = true;
+       // Skip if it isn't a pure repeated messages
+       // Does it start with a share?
+       if (!$skip AND strpos($body, "[share") > 0) {
+               $skip = true;
+       }
+       // Does it end with a share?
+       if (!$skip AND (strlen($body) > (strrpos($body, "[/share]") + 8))) {
+               $skip = true;
+       }
+       if (!$skip) {
+               $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
+               // Skip if there is no shared message in there
+               if ($body == $attributes) {
+                       $skip = true;
                }
        }
 
-       if(! $remote_contact) {
-               if(local_user()) {
-                       $contact_id = $_SESSION['cid'];
-                       $contact = $a->contact;
+       if (!$skip) {
+               $author = "";
+               preg_match("/author='(.*?)'/ism", $attributes, $matches);
+               if ($matches[1] != "") {
+                       $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
+               }
+               preg_match('/author="(.*?)"/ism', $attributes, $matches);
+               if ($matches[1] != "") {
+                       $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
+               }
+               $profile = "";
+               preg_match("/profile='(.*?)'/ism", $attributes, $matches);
+               if ($matches[1] != "") {
+                       $profiledata["url"] = $matches[1];
+               }
+               preg_match('/profile="(.*?)"/ism', $attributes, $matches);
+               if ($matches[1] != "") {
+                       $profiledata["url"] = $matches[1];
+               }
+               $avatar = "";
+               preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
+               if ($matches[1] != "") {
+                       $profiledata["photo"] = $matches[1];
                }
+               preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
+               if ($matches[1] != "") {
+                       $profiledata["photo"] = $matches[1];
+               }
+               $profiledata["nickname"] = $profiledata["name"];
+               $profiledata["network"] = GetProfileUsername($profiledata["url"], "", false, true);
+
+               $profiledata["address"] = "";
+               $profiledata["about"] = "";
        }
 
+       $profiledata = get_contact_details_by_url($profiledata["url"], local_user(), $profiledata);
 
-       $sql_extra = "
-               AND `allow_cid` = '' 
-               AND `allow_gid` = '' 
-               AND `deny_cid`  = '' 
-               AND `deny_gid`  = '' 
-       ";
+       $profiledata["photo"] = App::remove_baseurl($profiledata["photo"]);
 
+       if (local_user()) {
+               if (in_array($profiledata["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS))) {
+                       $profiledata["remoteconnect"] = App::get_baseurl()."/follow?url=".urlencode($profiledata["url"]);
+               }
+       } elseif ($profiledata["network"] == NETWORK_DFRN) {
+               $connect = str_replace("/profile/", "/dfrn_request/", $profiledata["url"]);
+               $profiledata["remoteconnect"] = $connect;
+       }
 
-       // Profile owner - everything is visible
+       return($profiledata);
+}
 
-       if(local_user() && (local_user() == $a->profile['uid'])) {
-               $sql_extra = '';                
-       }
+function display_content(App $a, $update = 0) {
 
-       // authenticated visitor - here lie dragons
-       // If $remotecontact is true, we know that not only is this a remotely authenticated
-       // person, but that it is *our* contact, which is important in multi-user mode.
-
-       elseif($remote_contact) {
-               $gs = '<<>>'; // should be impossible to match
-               if(count($groups)) {
-                       foreach($groups as $g)
-                               $gs .= '|<' . intval($g) . '>';
-               } 
-               $sql_extra = sprintf(
-                       " AND ( `allow_cid` = '' OR `allow_cid` REGEXP '<%d>' ) 
-                         AND ( `deny_cid`  = '' OR  NOT `deny_cid` REGEXP '<%d>' ) 
-                         AND ( `allow_gid` = '' OR `allow_gid` REGEXP '%s' )
-                         AND ( `deny_gid`  = '' OR  NOT `deny_gid` REGEXP '%s') ",
-
-                       intval($_SESSION['visitor_id']),
-                       intval($_SESSION['visitor_id']),
-                       dbesc($gs),
-                       dbesc($gs)
-               );
+       if ((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
+               notice(t('Public access denied.') . EOL);
+               return;
        }
 
-       $r = q("SELECT `item`.*, `item`.`id` AS `item_id`, 
-               `contact`.`name`, `contact`.`photo`, `contact`.`url`, `contact`.`rel`,
-               `contact`.`network`, `contact`.`thumb`, `contact`.`self`, 
-               `contact`.`id` AS `cid`, `contact`.`uid` AS `contact-uid`
-               FROM `item` LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
-               WHERE `item`.`uid` = %d AND `item`.`visible` = 1 AND `item`.`deleted` = 0
-               AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
-               AND `item`.`parent` = ( SELECT `parent` FROM `item` WHERE ( `id` = '%s' OR `uri` = '%s' ))
-               $sql_extra
-               ORDER BY `parent` DESC, `gravity` ASC, `id` ASC ",
-               intval($a->profile['uid']),
-               dbesc($item_id),
-               dbesc($item_id)
-       );
+       require_once('include/security.php');
+       require_once('include/conversation.php');
+       require_once('include/acl_selectors.php');
 
 
+       $o = '';
 
-       $cmnt_tpl = load_view_file('view/comment_item.tpl');
-       $like_tpl = load_view_file('view/like.tpl');
-       $tpl = load_view_file('view/wall_item.tpl');
-       $wallwall = load_view_file('view/wallwall_item.tpl');
+       $a->page['htmlhead'] .= replace_macros(get_markup_template('display-head.tpl'), array());
 
-       $return_url = $_SESSION['return_url'] = $a->cmd;
 
-       $alike = array();
-       $dlike = array();
+       if ($update) {
+               $nick = $_REQUEST['nick'];
+       } else {
+               $nick = (($a->argc > 1) ? $a->argv[1] : '');
+       }
 
-       if(count($r)) {
+       if ($update) {
+               $item_id = $_REQUEST['item_id'];
+               $a->profile = array('uid' => intval($update), 'profile_uid' => intval($update));
+       } else {
+               $item_id = (($a->argc > 2) ? $a->argv[2] : 0);
+
+               if ($a->argc == 2) {
+                       $nick = "";
+
+                       if (local_user()) {
+                               $r = qu("SELECT `id` FROM `item`
+                                       WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
+                                               AND `guid` = '%s' AND `uid` = %d", dbesc($a->argv[1]), local_user());
+                               if (dbm::is_result($r)) {
+                                       $item_id = $r[0]["id"];
+                                       $nick = $a->user["nickname"];
+                               }
+                       }
 
-               if((local_user()) && (local_user() == $a->profile['uid'])) {
-                       q("UPDATE `item` SET `unseen` = 0 
-                               WHERE `parent` = %d AND `unseen` = 1",
-                               intval($r[0]['parent'])
-                       );
+                       if ($nick == "") {
+                               $r = qu("SELECT `user`.`nickname`, `item`.`id` FROM `item` STRAIGHT_JOIN `user` ON `user`.`uid` = `item`.`uid`
+                                       WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
+                                               AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
+                                               AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
+                                               AND NOT `item`.`private` AND NOT `user`.`hidewall`
+                                               AND `item`.`guid` = '%s'", dbesc($a->argv[1]));
+                                       //      AND NOT `item`.`private` AND `item`.`wall`
+                               if (dbm::is_result($r)) {
+                                       $item_id = $r[0]["id"];
+                                       $nick = $r[0]["nickname"];
+                               }
+                       }
+                       if ($nick == "") {
+                               $r = qu("SELECT `item`.`id` FROM `item`
+                                       WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
+                                               AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
+                                               AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
+                                               AND NOT `item`.`private` AND `item`.`uid` = 0
+                                               AND `item`.`guid` = '%s'", dbesc($a->argv[1]));
+                                       //      AND NOT `item`.`private` AND `item`.`wall`
+                               if (dbm::is_result($r)) {
+                                       $item_id = $r[0]["id"];
+                               }
+                       }
                }
+       }
 
-               foreach($r as $item) {
-                       like_puller($a,$item,$alike,'like');
-                       like_puller($a,$item,$dlike,'dislike');
+       if ($item_id AND !is_numeric($item_id)) {
+               $r = qu("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
+                       dbesc($item_id), intval($a->profile['uid']));
+               if (dbm::is_result($r)) {
+                       $item_id = $r[0]["id"];
+               } else {
+                       $item_id = false;
                }
+       }
 
-               $author_contacts = extract_item_authors($r,$a->profile['uid']);
+       if (!$item_id) {
+               $a->error = 404;
+               notice(t('Item not found.').EOL);
+               return;
+       }
 
-               foreach($r as $item) {
 
-                       $template = $tpl;
+       $groups = array();
 
-                       $comment     = '';
-                       $owner_url   = '';
-                       $owner_photo = '';
-                       $owner_name  = '';
-                       
-                       $redirect_url = $a->get_baseurl() . '/redir/' . $item['cid'] ;
-                       
-                       if(((activity_match($item['verb'],ACTIVITY_LIKE)) || (activity_match($item['verb'],ACTIVITY_DISLIKE))) 
-                               && ($item['id'] != $item['parent']))
-                               continue;
+       $contact = null;
+       $remote_contact = false;
 
-                       $lock = ((($item['private']) || (($item['uid'] == local_user()) && (strlen($item['allow_cid']) || strlen($item['allow_gid']) 
-                               || strlen($item['deny_cid']) || strlen($item['deny_gid']))))
-                               ? '<div class="wall-item-lock"><img src="images/lock_icon.gif" class="lockview" alt="' . t('Private Message') . '" onclick="lockview(event,' . $item['id'] . ');" /></div>'
-                               : '<div class="wall-item-lock"></div>');
+       $contact_id = 0;
 
-                       if(can_write_wall($a,$a->profile['uid'])) {
-                               if($item['id'] == $item['parent']) {
-                                       $likebuttons = replace_macros($like_tpl,array('$id' => $item['id']));
-                               }
-                               if($item['last-child']) {
-                                       $comment = replace_macros($cmnt_tpl,array(
-                                               '$return_path' => '', 
-                                               '$jsreload' => $_SESSION['return_url'],
-                                               '$type' => 'wall-comment',
-                                               '$id' => $item['item_id'],
-                                               '$parent' => $item['parent'],
-                                               '$profile_uid' =>  $a->profile['uid'],
-                                               '$mylink' => $contact['url'],
-                                               '$mytitle' => t('This is you'),
-                                               '$myphoto' => $contact['thumb'],
-                                               '$ww' => ''
-                                       ));
-                               }
+       if (is_array($_SESSION['remote'])) {
+               foreach ($_SESSION['remote'] as $v) {
+                       if ($v['uid'] == $a->profile['uid']) {
+                               $contact_id = $v['cid'];
+                               break;
                        }
+               }
+       }
 
+       if ($contact_id) {
+               $groups = init_groups_visitor($contact_id);
+               $r = qu("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
+                       intval($contact_id),
+                       intval($a->profile['uid'])
+               );
+               if (dbm::is_result($r)) {
+                       $contact = $r[0];
+                       $remote_contact = true;
+               }
+       }
 
-                       $profile_url = $item['url'];
-                       $sparkle = '';
+       if (!$remote_contact) {
+               if (local_user()) {
+                       $contact_id = $_SESSION['cid'];
+                       $contact = $a->contact;
+               }
+       }
 
+       $r = qu("SELECT * FROM `contact` WHERE `uid` = %d AND `self` LIMIT 1",
+               intval($a->profile['uid'])
+       );
+       if (dbm::is_result($r)) {
+               $a->page_contact = $r[0];
+       }
+       $is_owner = ((local_user()) && (local_user() == $a->profile['profile_uid']) ? true : false);
 
-                       // Top-level wall post not written by the wall owner (wall-to-wall)
-                       // First figure out who owns it. 
+       if ($a->profile['hidewall'] && (! $is_owner) && (! $remote_contact)) {
+               notice(t('Access to this profile has been restricted.') . EOL);
+               return;
+       }
 
-                       $osparkle = '';
+       // We need the editor here to be able to reshare an item.
+
+       if ($is_owner) {
+               $x = array(
+                       'is_owner' => true,
+                       'allow_location' => $a->user['allow_location'],
+                       'default_location' => $a->user['default-location'],
+                       'nickname' => $a->user['nickname'],
+                       'lockstate' => ( (is_array($a->user)) && ((strlen($a->user['allow_cid'])) || (strlen($a->user['allow_gid'])) || (strlen($a->user['deny_cid'])) || (strlen($a->user['deny_gid']))) ? 'lock' : 'unlock'),
+                       'acl' => populate_acl($a->user, true),
+                       'bang' => '',
+                       'visitor' => 'block',
+                       'profile_uid' => local_user(),
+                       'acl_data' => construct_acl_data($a, $a->user), // For non-Javascript ACL selector
+               );
+               $o .= status_editor($a,$x,0,true);
+       }
 
-                       if(($item['parent'] == $item['item_id']) && (! $item['self'])) {
-                               
-                               if($item['type'] === 'wall') {
-                                       // I do. Put me on the left of the wall-to-wall notice.
-                                       $owner_url = $a->contact['url'];
-                                       $owner_photo = $a->contact['thumb'];
-                                       $owner_name = $a->contact['name'];
-                                       $template = $wallwall;
-                                       $commentww = 'ww';      
-                               }
-                               if($item['type'] === 'remote' && ($item['owner-link'] != $item['author-link'])) {
-                                       // Could be anybody. 
-                                       $owner_url = $item['owner-link'];
-                                       $owner_photo = $item['owner-avatar'];
-                                       $owner_name = $item['owner-name'];
-                                       $template = $wallwall;
-                                       $commentww = 'ww';
-                                       // If it is our contact, use a friendly redirect link
-                                       if((link_compare($item['owner-link'],$item['url'])) && ($item['network'] === 'dfrn')) {
-                                               $owner_url = $redirect_url;
-                                               $osparkle = ' sparkle';
-                                       }
+       $sql_extra = item_permissions_sql($a->profile['uid'],$remote_contact,$groups);
 
+       if ($update) {
 
-                               }
-                       }
+               $r = qu("SELECT `id` FROM `item` WHERE `item`.`uid` = %d
+                       AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = %d)
+                       $sql_extra AND `unseen`",
+                       intval($a->profile['uid']),
+                       intval($item_id)
+               );
 
-                       $diff_author = ((link_compare($item['url'],$item['author-link'])) ? false : true);
+               if (!$r) {
+                       return '';
+               }
+       }
 
-                       $profile_name   = (((strlen($item['author-name']))   && $diff_author) ? $item['author-name']   : $item['name']);
-                       $profile_avatar = (((strlen($item['author-avatar'])) && $diff_author) ? $item['author-avatar'] : $item['thumb']);
+       $r = qu(item_query()." AND `item`.`uid` = %d
+               AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = %d)
+               $sql_extra
+               ORDER BY `parent` DESC, `gravity` ASC, `id` ASC",
+               intval($a->profile['uid']),
+               intval($item_id)
+       );
 
-                       // Can we use our special contact URL for this author? 
 
-                       if(strlen($item['author-link'])) {
-                               $profile_link = $item['author-link'];
-                               if(link_compare($item['author-link'],$item['url']) && ($item['network'] === 'dfrn') && (! $item['self'])) {
-                                       $profile_link = $redirect_url;
-                                       $sparkle = ' sparkle';
-                               }
-                               elseif(isset($author_contacts[$item['author-link']])) {
-                                       $profile_link = $a->get_baseurl() . '/redir/' . $author_contacts[$item['author-link']];
-                                       $sparkle = ' sparkle';
-                               }
-                       }
+       if (!$r && local_user()) {
+               // Check if this is another person's link to a post that we have
+               $r = qu("SELECT `item`.uri FROM `item`
+                       WHERE (`item`.`id` = %d OR `item`.`uri` = '%s')
+                       LIMIT 1",
+                       intval($item_id),
+                       dbesc($item_id)
+               );
+               if (dbm::is_result($r)) {
+                       $item_uri = $r[0]['uri'];
+
+                       $r = qu(item_query()." AND `item`.`uid` = %d
+                               AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `uri` = '%s' AND uid = %d)
+                               ORDER BY `parent` DESC, `gravity` ASC, `id` ASC ",
+                               intval(local_user()),
+                               dbesc($item_uri),
+                               intval(local_user())
+                       );
+               }
+       }
 
-                       if(($item['contact-id'] == remote_user()) || ($item['uid'] == local_user()))
-                               $drop = replace_macros(load_view_file('view/wall_item_drop.tpl'), array('$id' => $item['id'], '$delete' => t('Delete')));
-                       else 
-                               $drop = replace_macros(load_view_file('view/wall_fake_drop.tpl'), array('$id' => $item['id']));
-
-                       $like    = ((isset($alike[$item['id']])) ? format_like($alike[$item['id']],$alike[$item['id'] . '-l'],'like',$item['id']) : '');
-                       $dislike = ((isset($dlike[$item['id']])) ? format_like($dlike[$item['id']],$dlike[$item['id'] . '-l'],'dislike',$item['id']) : '');
-
-                       $location = (($item['location']) ? '<a target="map" href="http://maps.google.com/?q=' . urlencode($item['location']) . '">' . $item['location'] . '</a>' : '');
-                       $coord = (($item['coord']) ? '<a target="map" href="http://maps.google.com/?q=' . urlencode($item['coord']) . '">' . $item['coord'] . '</a>' : '');
-                       if($coord) {
-                               if($location)
-                                       $location .= '<br /><span class="smalltext">(' . $coord . ')</span>';
-                               else
-                                       $location = '<span class="smalltext">' . $coord . '</span>';
-                       }
+       if ($r) {
+
+               if ((local_user()) && (local_user() == $a->profile['uid'])) {
+                       $unseen = q("SELECT `id` FROM `item` WHERE `unseen` AND `parent` = %d",
+                                       intval($r[0]['parent']));
 
-                       $indent = (($item['parent'] != $item['item_id']) ? ' comment' : '');
-
-                       if(strcmp(datetime_convert('UTC','UTC',$item['created']),datetime_convert('UTC','UTC','now - 12 hours')) > 0)
-                               $indent .= ' shiny'; 
-
-
-                       $tmp_item = replace_macros($template,array(
-                               '$id' => $item['item_id'],
-                               '$linktitle' => t('View $name\'s profile'),
-                               '$olinktitle' => t('View $owner_name\'s profile'),
-                               '$to' => t('to'),
-                               '$wall' => t('Wall-to-Wall'),
-                               '$vwall' => t('via Wall-To-Wall:'),
-                               '$profile_url' => $profile_link,
-                               '$name' => $profile_name,
-                               '$sparkle' => $sparkle,
-                               '$osparkle' => $osparkle,
-                               '$thumb' => $profile_avatar,
-                               '$title' => $item['title'],
-                               '$body' => smilies(bbcode($item['body'])),
-                               '$ago' => relative_date($item['created']),
-                               '$lock' => $lock,
-                               '$location' => $location,
-                               '$indent' => $indent,
-                               '$owner_url' => $owner_url,
-                               '$owner_photo' => $owner_photo,
-                               '$owner_name' => $owner_name,
-                               '$plink' => get_plink($item),
-                               '$drop' => $drop,
-                               '$vote' => $likebuttons,
-                               '$like' => $like,
-                               '$dislike' => $dislike,
-                               '$comment' => $comment
-                       ));
-
-                       $arr = array('item' => $item, 'output' => $tmp_item);
-                       call_hooks('display_item', $arr);
-
-                       $o .= $arr['output'];
+                       if ($unseen) {
+                               q("UPDATE `item` SET `unseen` = 0 WHERE `parent` = %d AND `unseen`",
+                                       intval($r[0]['parent'])
+                               );
+                       }
+               }
 
+               $items = conv_sort($r,"`commented`");
 
+               if (!$update) {
+                       $o .= "<script> var netargs = '?f=&nick=" . $nick . "&item_id=" . $item_id . "'; </script>";
                }
-       }
-       else {
-               $r = q("SELECT `id` FROM `item` WHERE `id` = '%s' OR `uri` = '%s' LIMIT 1",
-                       dbesc($item_id),
-                       dbesc($item_id)
-               );
-               if(count($r)) {
-                       if($r[0]['deleted']) {
-                               notice( t('Item has been removed.') . EOL );
-                       }
-                       else {  
-                               notice( t('Permission denied.') . EOL ); 
-                       }
+               $o .= conversation($a,$items,'display', $update);
+
+               // Preparing the meta header
+               require_once('include/bbcode.php');
+               require_once("include/html2plain.php");
+               $description = trim(html2plain(bbcode($r[0]["body"], false, false), 0, true));
+               $title = trim(html2plain(bbcode($r[0]["title"], false, false), 0, true));
+               $author_name = $r[0]["author-name"];
+
+               $image = $a->remove_baseurl($r[0]["author-thumb"]);
+
+               if ($title == "") {
+                       $title = $author_name;
                }
-               else {
-                       notice( t('Item not found.') . EOL );
+
+               // Limit the description to 160 characters
+               if (strlen($description) > 160) {
+                       $description = substr($description, 0, 157) . '...';
                }
 
+               $description = htmlspecialchars($description, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
+               $title = htmlspecialchars($title, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
+               $author_name = htmlspecialchars($author_name, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
+
+               //<meta name="keywords" content="">
+               $a->page['htmlhead'] .= '<meta name="author" content="'.$author_name.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta name="title" content="'.$title.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta name="fulltitle" content="'.$title.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta name="description" content="'.$description.'" />'."\n";
+
+               // Schema.org microdata
+               $a->page['htmlhead'] .= '<meta itemprop="name" content="'.$title.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta itemprop="description" content="'.$description.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta itemprop="image" content="'.$image.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta itemprop="author" content="'.$author_name.'" />'."\n";
+
+               // Twitter cards
+               $a->page['htmlhead'] .= '<meta name="twitter:card" content="summary" />'."\n";
+               $a->page['htmlhead'] .= '<meta name="twitter:title" content="'.$title.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta name="twitter:description" content="'.$description.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta name="twitter:image" content="'.$image.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta name="twitter:url" content="'.$r[0]["plink"].'" />'."\n";
+
+               // Dublin Core
+               $a->page['htmlhead'] .= '<meta name="DC.title" content="'.$title.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta name="DC.description" content="'.$description.'" />'."\n";
+
+               // Open Graph
+               $a->page['htmlhead'] .= '<meta property="og:type" content="website" />'."\n";
+               $a->page['htmlhead'] .= '<meta property="og:title" content="'.$title.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta property="og:image" content="'.$image.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta property="og:url" content="'.$r[0]["plink"].'" />'."\n";
+               $a->page['htmlhead'] .= '<meta property="og:description" content="'.$description.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta name="og:article:author" content="'.$author_name.'" />'."\n";
+               // article:tag
+
+               return $o;
        }
 
-       $o .= '<div class="cc-license">' . t('Shared content is covered by the <a href="http://creativecommons.org/licenses/by/3.0/">Creative Commons Attribution 3.0</a> license.') . '</div>';
+       $r = qu("SELECT `id`,`deleted` FROM `item` WHERE `id` = '%s' OR `uri` = '%s' LIMIT 1",
+               dbesc($item_id),
+               dbesc($item_id)
+       );
+       if ($r) {
+               if ($r[0]['deleted']) {
+                       notice(t('Item has been removed.') . EOL );
+               } else {
+                       notice(t('Permission denied.') . EOL );
+               }
+       } else {
+               notice(t('Item not found.') . EOL );
+       }
 
        return $o;
 }