Beispiel #1
0
 function get($update = 0, $load = false)
 {
     if (!local_channel()) {
         $_SESSION['return_url'] = \App::$query_string;
         return login(false);
     }
     if ($load) {
         $_SESSION['loadtime'] = datetime_convert();
     }
     $arr = array('query' => \App::$query_string);
     call_hooks('network_content_init', $arr);
     $channel = \App::get_channel();
     $item_normal = item_normal();
     $datequery = $datequery2 = '';
     $group = 0;
     $nouveau = false;
     $datequery = x($_GET, 'dend') && is_a_date_arg($_GET['dend']) ? notags($_GET['dend']) : '';
     $datequery2 = x($_GET, 'dbegin') && is_a_date_arg($_GET['dbegin']) ? notags($_GET['dbegin']) : '';
     $nouveau = x($_GET, 'new') ? intval($_GET['new']) : 0;
     $gid = x($_GET, 'gid') ? intval($_GET['gid']) : 0;
     $category = x($_REQUEST, 'cat') ? $_REQUEST['cat'] : '';
     $hashtags = x($_REQUEST, 'tag') ? $_REQUEST['tag'] : '';
     $verb = x($_REQUEST, 'verb') ? $_REQUEST['verb'] : '';
     $search = $_GET['search'] ? $_GET['search'] : '';
     if ($search) {
         if (strpos($search, '@') === 0) {
             $r = q("select abook_id from abook left join xchan on abook_xchan = xchan_hash where xchan_name = '%s' and abook_channel = %d limit 1", dbesc(substr($search, 1)), intval(local_channel()));
             if ($r) {
                 $_GET['cid'] = $r[0]['abook_id'];
                 $search = $_GET['search'] = '';
             }
         } elseif (strpos($search, '#') === 0) {
             $hashtags = substr($search, 1);
             $search = $_GET['search'] = '';
         }
     }
     if ($datequery) {
         $_GET['order'] = 'post';
     }
     // filter by collection (e.g. group)
     if ($gid) {
         $r = q("SELECT * FROM groups WHERE id = %d AND uid = %d LIMIT 1", intval($gid), intval(local_channel()));
         if (!$r) {
             if ($update) {
                 killme();
             }
             notice(t('No such group') . EOL);
             goaway(z_root() . '/network');
             // NOTREACHED
         }
         $group = $gid;
         $group_hash = $r[0]['hash'];
         $def_acl = array('allow_gid' => '<' . $r[0]['hash'] . '>');
     }
     $o = '';
     // if no tabs are selected, defaults to comments
     $cid = x($_GET, 'cid') ? intval($_GET['cid']) : 0;
     $star = x($_GET, 'star') ? intval($_GET['star']) : 0;
     $order = x($_GET, 'order') ? notags($_GET['order']) : 'comment';
     $liked = x($_GET, 'liked') ? intval($_GET['liked']) : 0;
     $conv = x($_GET, 'conv') ? intval($_GET['conv']) : 0;
     $spam = x($_GET, 'spam') ? intval($_GET['spam']) : 0;
     $cmin = x($_GET, 'cmin') ? intval($_GET['cmin']) : 0;
     $cmax = x($_GET, 'cmax') ? intval($_GET['cmax']) : 99;
     $firehose = x($_GET, 'fh') ? intval($_GET['fh']) : 0;
     $file = x($_GET, 'file') ? $_GET['file'] : '';
     $deftag = '';
     if (x($_GET, 'search') || x($_GET, 'file')) {
         $nouveau = true;
     }
     if ($cid) {
         $r = q("SELECT abook_xchan FROM abook WHERE abook_id = %d AND abook_channel = %d LIMIT 1", intval($cid), intval(local_channel()));
         if (!$r) {
             if ($update) {
                 killme();
             }
             notice(t('No such channel') . EOL);
             goaway(z_root() . '/network');
             // NOTREACHED
         }
         if ($_GET['pf'] === '1') {
             $deftag = '@' . t('forum') . '+' . intval($cid) . '+';
         } else {
             $def_acl = array('allow_cid' => '<' . $r[0]['abook_xchan'] . '>');
         }
     }
     if (!$update) {
         $tabs = network_tabs();
         $o .= $tabs;
         // search terms header
         if ($search) {
             $o .= replace_macros(get_markup_template("section_title.tpl"), array('$title' => t('Search Results For:') . ' ' . htmlspecialchars($search, ENT_COMPAT, 'UTF-8')));
         }
         nav_set_selected('network');
         $channel_acl = array('allow_cid' => $channel['channel_allow_cid'], 'allow_gid' => $channel['channel_allow_gid'], 'deny_cid' => $channel['channel_deny_cid'], 'deny_gid' => $channel['channel_deny_gid']);
         $private_editing = ($group || $cid) && !intval($_GET['pf']) ? true : false;
         $x = array('is_owner' => true, 'allow_location' => intval(get_pconfig($channel['channel_id'], 'system', 'use_browser_location')) ? '1' : '', 'default_location' => $channel['channel_location'], 'nickname' => $channel['channel_address'], 'lockstate' => $private_editing || $channel['channel_allow_cid'] || $channel['channel_allow_gid'] || $channel['channel_deny_cid'] || $channel['channel_deny_gid'] ? 'lock' : 'unlock', 'acl' => populate_acl($private_editing ? $def_acl : $channel_acl, true, \PermissionDescription::fromGlobalPermission('view_stream'), get_post_aclDialogDescription(), 'acl_dialog_post'), 'bang' => $private_editing ? '!' : '', 'visitor' => true, 'profile_uid' => local_channel(), 'editor_autocomplete' => true, 'bbco_autocomplete' => 'bbcode', 'bbcode' => true);
         if ($deftag) {
             $x['pretext'] = $deftag;
         }
         $status_editor = status_editor($a, $x);
         $o .= $status_editor;
     }
     // We don't have to deal with ACL's on this page. You're looking at everything
     // that belongs to you, hence you can see all of it. We will filter by group if
     // desired.
     $sql_options = $star ? " and item_starred = 1 " : '';
     $sql_nets = '';
     $sql_extra = " AND `item`.`parent` IN ( SELECT `parent` FROM `item` WHERE item_thread_top = 1 {$sql_options} ) ";
     if ($group) {
         $contact_str = '';
         $contacts = group_get_members($group);
         if ($contacts) {
             foreach ($contacts as $c) {
                 if ($contact_str) {
                     $contact_str .= ',';
                 }
                 $contact_str .= "'" . $c['xchan'] . "'";
             }
         } else {
             $contact_str = ' 0 ';
             info(t('Privacy group is empty'));
         }
         $sql_extra = " AND item.parent IN ( SELECT DISTINCT parent FROM item WHERE true {$sql_options} AND (( author_xchan IN ( {$contact_str} ) OR owner_xchan in ( {$contact_str} )) or allow_gid like '" . protect_sprintf('%<' . dbesc($group_hash) . '>%') . "' ) and id = parent {$item_normal} ) ";
         $x = group_rec_byhash(local_channel(), $group_hash);
         if ($x) {
             $title = replace_macros(get_markup_template("section_title.tpl"), array('$title' => t('Privacy group: ') . $x['name']));
         }
         $o = $tabs;
         $o .= $title;
         $o .= $status_editor;
     } elseif ($cid) {
         $r = q("SELECT abook.*, xchan.* from abook left join xchan on abook_xchan = xchan_hash where abook_id = %d and abook_channel = %d and abook_blocked = 0 limit 1", intval($cid), intval(local_channel()));
         if ($r) {
             $sql_extra = " AND item.parent IN ( SELECT DISTINCT parent FROM item WHERE true {$sql_options} AND uid = " . intval(local_channel()) . " AND ( author_xchan = '" . dbesc($r[0]['abook_xchan']) . "' or owner_xchan = '" . dbesc($r[0]['abook_xchan']) . "' ) {$item_normal} ) ";
             $title = replace_macros(get_markup_template("section_title.tpl"), array('$title' => '<a href="' . zid($r[0]['xchan_url']) . '" ><img src="' . zid($r[0]['xchan_photo_s']) . '" alt="' . urlencode($r[0]['xchan_name']) . '" /></a> <a href="' . zid($r[0]['xchan_url']) . '" >' . $r[0]['xchan_name'] . '</a>'));
             $o = $tabs;
             $o .= $title;
             $o .= $status_editor;
         } else {
             notice(t('Invalid connection.') . EOL);
             goaway(z_root() . '/network');
         }
     }
     if (x($category)) {
         $sql_extra .= protect_sprintf(term_query('item', $category, TERM_CATEGORY));
     }
     if (x($hashtags)) {
         $sql_extra .= protect_sprintf(term_query('item', $hashtags, TERM_HASHTAG, TERM_COMMUNITYTAG));
     }
     if (!$update) {
         // The special div is needed for liveUpdate to kick in for this page.
         // We only launch liveUpdate if you aren't filtering in some incompatible
         // way and also you aren't writing a comment (discovered in javascript).
         if ($gid || $cid || $cmin || $cmax != 99 || $star || $liked || $conv || $spam || $nouveau || $list) {
             $firehose = 0;
         }
         $maxheight = get_pconfig(local_channel(), 'system', 'network_divmore_height');
         if (!$maxheight) {
             $maxheight = 400;
         }
         $o .= '<div id="live-network"></div>' . "\r\n";
         $o .= "<script> var profile_uid = " . local_channel() . "; var profile_page = " . \App::$pager['page'] . "; divmore_height = " . intval($maxheight) . "; </script>\r\n";
         \App::$page['htmlhead'] .= replace_macros(get_markup_template("build_query.tpl"), array('$baseurl' => z_root(), '$pgtype' => 'network', '$uid' => local_channel() ? local_channel() : '0', '$gid' => $gid ? $gid : '0', '$cid' => $cid ? $cid : '0', '$cmin' => $cmin ? $cmin : '0', '$cmax' => $cmax ? $cmax : '0', '$star' => $star ? $star : '0', '$liked' => $liked ? $liked : '0', '$conv' => $conv ? $conv : '0', '$spam' => $spam ? $spam : '0', '$fh' => $firehose ? $firehose : '0', '$nouveau' => $nouveau ? $nouveau : '0', '$wall' => '0', '$list' => x($_REQUEST, 'list') ? intval($_REQUEST['list']) : 0, '$page' => \App::$pager['page'] != 1 ? \App::$pager['page'] : 1, '$search' => $search ? $search : '', '$order' => $order, '$file' => $file, '$cats' => $category, '$tags' => $hashtags, '$dend' => $datequery, '$mid' => '', '$verb' => $verb, '$dbegin' => $datequery2));
     }
     $sql_extra3 = '';
     if ($datequery) {
         $sql_extra3 .= protect_sprintf(sprintf(" AND item.created <= '%s' ", dbesc(datetime_convert(date_default_timezone_get(), '', $datequery))));
     }
     if ($datequery2) {
         $sql_extra3 .= protect_sprintf(sprintf(" AND item.created >= '%s' ", dbesc(datetime_convert(date_default_timezone_get(), '', $datequery2))));
     }
     $sql_extra2 = $nouveau ? '' : " AND item.parent = item.id ";
     $sql_extra3 = $nouveau ? '' : $sql_extra3;
     if (x($_GET, 'search')) {
         $search = escape_tags($_GET['search']);
         if (strpos($search, '#') === 0) {
             $sql_extra .= term_query('item', substr($search, 1), TERM_HASHTAG, TERM_COMMUNITYTAG);
         } else {
             $sql_extra .= sprintf(" AND item.body like '%s' ", dbesc(protect_sprintf('%' . $search . '%')));
         }
     }
     if ($verb) {
         $sql_extra .= sprintf(" AND item.verb like '%s' ", dbesc(protect_sprintf('%' . $verb . '%')));
     }
     if (strlen($file)) {
         $sql_extra .= term_query('item', $file, TERM_FILE);
     }
     if ($conv) {
         $sql_extra .= sprintf(" AND parent IN (SELECT distinct(parent) from item where ( author_xchan like '%s' or item_mentionsme = 1 )) ", dbesc(protect_sprintf($channel['channel_hash'])));
     }
     if ($update && !$load) {
         // only setup pagination on initial page view
         $pager_sql = '';
     } else {
         $itemspage = get_pconfig(local_channel(), 'system', 'itemspage');
         \App::set_pager_itemspage(intval($itemspage) ? $itemspage : 20);
         $pager_sql = sprintf(" LIMIT %d OFFSET %d ", intval(\App::$pager['itemspage']), intval(\App::$pager['start']));
     }
     if ($cmin != 0 || $cmax != 99) {
         // Not everybody who shows up in the network stream will be in your address book.
         // By default those that aren't are assumed to have closeness = 99; but this isn't
         // recorded anywhere. So if cmax is 99, we'll open the search up to anybody in
         // the stream with a NULL address book entry.
         $sql_nets .= " AND ";
         if ($cmax == 99) {
             $sql_nets .= " ( ";
         }
         $sql_nets .= "( abook.abook_closeness >= " . intval($cmin) . " ";
         $sql_nets .= " AND abook.abook_closeness <= " . intval($cmax) . " ) ";
         if ($cmax == 99) {
             $sql_nets .= " OR abook.abook_closeness IS NULL ) ";
         }
     }
     $abook_uids = " and abook.abook_channel = " . local_channel() . " ";
     if ($firehose && !get_config('system', 'disable_discover_tab')) {
         require_once 'include/identity.php';
         $sys = get_sys_channel();
         $uids = " and item.uid  = " . intval($sys['channel_id']) . " ";
         \App::$data['firehose'] = intval($sys['channel_id']);
     } else {
         $uids = " and item.uid = " . local_channel() . " ";
     }
     if (get_pconfig(local_channel(), 'system', 'network_list_mode')) {
         $page_mode = 'list';
     } else {
         $page_mode = 'client';
     }
     $simple_update = $update ? " and item_unseen = 1 " : '';
     // This fixes a very subtle bug so I'd better explain it. You wake up in the morning or return after a day
     // or three and look at your matrix page - after opening up your browser. The first page loads just as it
     // should. All of a sudden a few seconds later, page 2 will get inserted at the beginning of the page
     // (before the page 1 content). The update code is actually doing just what it's supposed
     // to, it's fetching posts that have the ITEM_UNSEEN bit set. But the reason that page 2 content is being
     // returned in an UPDATE is because you hadn't gotten that far yet - you're still on page 1 and everything
     // that we loaded for page 1 is now marked as seen. But the stuff on page 2 hasn't been. So... it's being
     // treated as "new fresh" content because it is unseen. We need to distinguish it somehow from content
     // which "arrived as you were reading page 1". We're going to do this
     // by storing in your session the current UTC time whenever you LOAD a network page, and only UPDATE items
     // which are both ITEM_UNSEEN and have "changed" since that time. Cross fingers...
     if ($update && $_SESSION['loadtime']) {
         $simple_update = " AND (( item_unseen = 1 AND item.changed > '" . datetime_convert('UTC', 'UTC', $_SESSION['loadtime']) . "' )  OR item.changed > '" . datetime_convert('UTC', 'UTC', $_SESSION['loadtime']) . "' ) ";
     }
     if ($load) {
         $simple_update = '';
     }
     if ($nouveau && $load) {
         // "New Item View" - show all items unthreaded in reverse created date order
         $items = q("SELECT item.*, item.id AS item_id, received FROM item\n\t\t\t\tleft join abook on ( item.owner_xchan = abook.abook_xchan {$abook_uids} )\n\t\t\t\tWHERE true {$uids} {$item_normal}\n\t\t\t\tand (abook.abook_blocked = 0 or abook.abook_flags is null)\n\t\t\t\t{$simple_update}\n\t\t\t\t{$sql_extra} {$sql_nets}\n\t\t\t\tORDER BY item.received DESC {$pager_sql} ");
         require_once 'include/items.php';
         xchan_query($items);
         $items = fetch_post_tags($items, true);
     } elseif ($update) {
         // Normal conversation view
         if ($order === 'post') {
             $ordering = "created";
         } else {
             $ordering = "commented";
         }
         if ($load) {
             // Fetch a page full of parent items for this page
             $r = q("SELECT distinct item.id AS item_id, {$ordering} FROM item\n\t\t\t\t\tleft join abook on ( item.owner_xchan = abook.abook_xchan {$abook_uids} )\n\t\t\t\t\tWHERE true {$uids} {$item_normal}\n\t\t\t\t\tAND item.parent = item.id\n\t\t\t\t\tand (abook.abook_blocked = 0 or abook.abook_flags is null)\n\t\t\t\t\t{$sql_extra3} {$sql_extra} {$sql_nets}\n\t\t\t\t\tORDER BY {$ordering} DESC {$pager_sql} ");
         } else {
             // this is an update
             $r = q("SELECT item.parent AS item_id FROM item\n\t\t\t\t\tleft join abook on ( item.owner_xchan = abook.abook_xchan {$abook_uids} )\n\t\t\t\t\tWHERE true {$uids} {$item_normal} {$simple_update}\n\t\t\t\t\tand (abook.abook_blocked = 0 or abook.abook_flags is null)\n\t\t\t\t\t{$sql_extra3} {$sql_extra} {$sql_nets} ");
             $_SESSION['loadtime'] = datetime_convert();
         }
         // Then fetch all the children of the parents that are on this page
         $parents_str = '';
         $update_unseen = '';
         if ($r) {
             $parents_str = ids_to_querystr($r, 'item_id');
             $items = q("SELECT item.*, item.id AS item_id FROM item\n\t\t\t\t\tWHERE true {$uids} {$item_normal}\n\t\t\t\t\tAND item.parent IN ( %s )\n\t\t\t\t\t{$sql_extra} ", dbesc($parents_str));
             xchan_query($items, true, $firehose ? local_channel() : 0);
             $items = fetch_post_tags($items, true);
             $items = conv_sort($items, $ordering);
         } else {
             $items = array();
         }
         if ($page_mode === 'list') {
             /**
              * in "list mode", only mark the parent item and any like activities as "seen". 
              * We won't distinguish between comment likes and post likes. The important thing
              * is that the number of unseen comments will be accurate. The SQL to separate the
              * comment likes could also get somewhat hairy. 
              */
             if ($parents_str) {
                 $update_unseen = " AND ( id IN ( " . dbesc($parents_str) . " )";
                 $update_unseen .= " OR ( parent IN ( " . dbesc($parents_str) . " ) AND verb in ( '" . dbesc(ACTIVITY_LIKE) . "','" . dbesc(ACTIVITY_DISLIKE) . "' ))) ";
             }
         } else {
             if ($parents_str) {
                 $update_unseen = " AND parent IN ( " . dbesc($parents_str) . " )";
             }
         }
     }
     if ($update_unseen && !$firehose) {
         $r = q("UPDATE item SET item_unseen = 0 WHERE item_unseen = 1 AND uid = %d {$update_unseen} ", intval(local_channel()));
     }
     $mode = $nouveau ? 'network-new' : 'network';
     $o .= conversation($a, $items, $mode, $update, $page_mode);
     if ($items && !$update) {
         $o .= alt_pager($a, count($items));
     }
     return $o;
 }
Beispiel #2
0
function network_content(&$a, $update = 0, $load = false)
{
    if (!local_user()) {
        $_SESSION['return_url'] = $a->query_string;
        return login(false);
    }
    $arr = array('query' => $a->query_string);
    call_hooks('network_content_init', $arr);
    $channel = $a->get_channel();
    $search = $_GET['search'] ? $_GET['search'] : '';
    if ($search) {
        if (strpos($search, '@') === 0) {
            $r = q("select abook_id from abook left join xchan on abook_xchan = xchan_hash where xchan_name = '%s' and abook_channel = %d limit 1", dbesc(substr($search, 1)), intval(local_user()));
            if ($r) {
                $_GET['cid'] = $r[0]['abook_id'];
                $search = $_GET['search'] = '';
            }
        } elseif (strpos($search, '#') === 0) {
            $search = $_GET['search'] = substr($search, 1);
        }
    }
    $datequery = $datequery2 = '';
    $group = 0;
    $nouveau = false;
    $datequery = x($_GET, 'dend') && is_a_date_arg($_GET['dend']) ? notags($_GET['dend']) : '';
    $datequery2 = x($_GET, 'dbegin') && is_a_date_arg($_GET['dbegin']) ? notags($_GET['dbegin']) : '';
    $nouveau = x($_GET, 'new') ? intval($_GET['new']) : 0;
    $gid = x($_GET, 'gid') ? intval($_GET['gid']) : 0;
    if ($datequery) {
        $_GET['order'] = 'post';
    }
    if ($gid) {
        $r = q("SELECT * FROM `groups` WHERE id = %d AND uid = %d LIMIT 1", intval($gid), intval(local_user()));
        if (!$r) {
            if ($update) {
                killme();
            }
            notice(t('No such group') . EOL);
            goaway($a->get_baseurl(true) . '/network');
            // NOTREACHED
        }
        $group = $gid;
        $group_hash = $r[0]['hash'];
        $def_acl = array('allow_gid' => '<' . $r[0]['hash'] . '>');
    }
    $o = '';
    // if no tabs are selected, defaults to comments
    $cid = x($_GET, 'cid') ? intval($_GET['cid']) : 0;
    $star = x($_GET, 'star') ? intval($_GET['star']) : 0;
    $order = x($_GET, 'order') ? notags($_GET['order']) : 'comment';
    $liked = x($_GET, 'liked') ? intval($_GET['liked']) : 0;
    $conv = x($_GET, 'conv') ? intval($_GET['conv']) : 0;
    $spam = x($_GET, 'spam') ? intval($_GET['spam']) : 0;
    $cmin = x($_GET, 'cmin') ? intval($_GET['cmin']) : 0;
    $cmax = x($_GET, 'cmax') ? intval($_GET['cmax']) : 99;
    $firehose = x($_GET, 'fh') ? intval($_GET['fh']) : 0;
    $file = x($_GET, 'file') ? $_GET['file'] : '';
    if (x($_GET, 'search') || x($_GET, 'file')) {
        $nouveau = true;
    }
    if ($cid) {
        $def_acl = array('allow_cid' => '<' . intval($cid) . '>');
    }
    if (!$update) {
        $o .= network_tabs();
        // search terms header
        if ($search) {
            $o .= '<h2>' . t('Search Results For:') . ' ' . htmlspecialchars($search, ENT_COMPAT, 'UTF-8') . '</h2>';
        }
        nav_set_selected('network');
        $channel_acl = array('allow_cid' => $channel['channel_allow_cid'], 'allow_gid' => $channel['channel_allow_gid'], 'deny_cid' => $channel['channel_deny_cid'], 'deny_gid' => $channel['channel_deny_gid']);
        $x = array('is_owner' => true, 'allow_location' => intval(get_pconfig($channel['channel_id'], 'system', 'use_browser_location')) ? '1' : '', 'default_location' => $channel['channel_location'], 'nickname' => $channel['channel_address'], 'lockstate' => $group || $cid || $channel['channel_allow_cid'] || $channel['channel_allow_gid'] || $channel['channel_deny_cid'] || $channel['channel_deny_gid'] ? 'lock' : 'unlock', 'acl' => populate_acl($group || $cid ? $def_acl : $channel_acl), 'bang' => $group || $cid ? '!' : '', 'visitor' => true, 'profile_uid' => local_user());
        $o .= status_editor($a, $x);
    }
    // We don't have to deal with ACL's on this page. You're looking at everything
    // that belongs to you, hence you can see all of it. We will filter by group if
    // desired.
    $sql_options = $star ? " and (item_flags & " . intval(ITEM_STARRED) . ")" : '';
    $sql_nets = '';
    $sql_extra = " AND `item`.`parent` IN ( SELECT `parent` FROM `item` WHERE (item_flags & " . intval(ITEM_THREAD_TOP) . ") {$sql_options} ) ";
    if ($group) {
        $contact_str = '';
        $contacts = group_get_members($group);
        if ($contacts) {
            foreach ($contacts as $c) {
                if ($contact_str) {
                    $contact_str .= ',';
                }
                $contact_str .= "'" . $c['xchan'] . "'";
            }
        } else {
            $contact_str = ' 0 ';
            info(t('Collection is empty'));
        }
        $sql_extra = " AND item.parent IN ( SELECT DISTINCT parent FROM item WHERE true {$sql_options} AND (( author_xchan IN ( {$contact_str} ) OR owner_xchan in ( {$contact_str} )) or allow_gid like '" . protect_sprintf('%<' . dbesc($group_hash) . '>%') . "' ) and id = parent and item_restrict = 0 ) ";
        $x = group_rec_byhash(local_user(), $group_hash);
        if ($x) {
            $o = '<h2>' . t('Collection: ') . $x['name'] . '</h2>' . $o;
        }
    } elseif ($cid) {
        $r = q("SELECT abook.*, xchan.* from abook left join xchan on abook_xchan = xchan_hash where abook_id = %d and abook_channel = %d and not ( abook_flags & " . intval(ABOOK_FLAG_BLOCKED) . ") limit 1", intval($cid), intval(local_user()));
        if ($r) {
            $sql_extra = " AND item.parent IN ( SELECT DISTINCT parent FROM item WHERE true {$sql_options} AND uid = " . intval(local_user()) . " AND ( author_xchan = '" . dbesc($r[0]['abook_xchan']) . "' or owner_xchan = '" . dbesc($r[0]['abook_xchan']) . "' ) and item_restrict = 0 ) ";
            $o = '<h2>' . t('Connection: ') . $r[0]['xchan_name'] . '</h2>' . $o;
        } else {
            notice(t('Invalid connection.') . EOL);
            goaway($a->get_baseurl(true) . '/network');
        }
    }
    if (!$update) {
        // The special div is needed for liveUpdate to kick in for this page.
        // We only launch liveUpdate if you aren't filtering in some incompatible
        // way and also you aren't writing a comment (discovered in javascript).
        if ($gid || $cid || $cmin || $cmax != 99 || $star || $liked || $conv || $spam || $nouveau || $list) {
            $firehose = 0;
        }
        $o .= '<div id="live-network"></div>' . "\r\n";
        $o .= "<script> var profile_uid = " . $_SESSION['uid'] . "; var profile_page = " . $a->pager['page'] . ";</script>";
        $a->page['htmlhead'] .= replace_macros(get_markup_template("build_query.tpl"), array('$baseurl' => z_root(), '$pgtype' => 'network', '$uid' => local_user() ? local_user() : '0', '$gid' => $gid ? $gid : '0', '$cid' => $cid ? $cid : '0', '$cmin' => $cmin ? $cmin : '0', '$cmax' => $cmax ? $cmax : '0', '$star' => $star ? $star : '0', '$liked' => $liked ? $liked : '0', '$conv' => $conv ? $conv : '0', '$spam' => $spam ? $spam : '0', '$fh' => $firehose ? $firehose : '0', '$nouveau' => $nouveau ? $nouveau : '0', '$wall' => '0', '$list' => x($_REQUEST, 'list') ? intval($_REQUEST['list']) : 0, '$page' => $a->pager['page'] != 1 ? $a->pager['page'] : 1, '$search' => $search ? $search : '', '$order' => $order, '$file' => $file, '$cats' => '', '$dend' => $datequery, '$mid' => '', '$dbegin' => $datequery2));
    }
    $sql_extra3 = '';
    if ($datequery) {
        $sql_extra3 .= protect_sprintf(sprintf(" AND item.created <= '%s' ", dbesc(datetime_convert(date_default_timezone_get(), '', $datequery))));
    }
    if ($datequery2) {
        $sql_extra3 .= protect_sprintf(sprintf(" AND item.created >= '%s' ", dbesc(datetime_convert(date_default_timezone_get(), '', $datequery2))));
    }
    $sql_extra2 = $nouveau ? '' : " AND `item`.`parent` = `item`.`id` ";
    $sql_extra3 = $nouveau ? '' : $sql_extra3;
    if (x($_GET, 'search')) {
        $search = escape_tags($_GET['search']);
        if (strpos($search, '#') === 0) {
            $sql_extra .= term_query('item', substr($search, 1), TERM_HASHTAG);
        } else {
            $sql_extra .= sprintf(" AND `item`.`body` like '%s' ", dbesc(protect_sprintf('%' . $search . '%')));
        }
    }
    if (strlen($file)) {
        $sql_extra .= term_query('item', $file, TERM_FILE);
    }
    if ($conv) {
        $sql_extra .= sprintf(" AND parent IN (SELECT distinct(parent) from item where ( author_xchan like '%s' or ( item_flags & %d ))) ", dbesc(protect_sprintf($channel['channel_hash'])), intval(ITEM_MENTIONSME));
    }
    if ($update && !$load) {
        // only setup pagination on initial page view
        $pager_sql = '';
    } else {
        $itemspage = get_pconfig(local_user(), 'system', 'itemspage');
        $a->set_pager_itemspage(intval($itemspage) ? $itemspage : 20);
        $pager_sql = sprintf(" LIMIT %d, %d ", intval($a->pager['start']), intval($a->pager['itemspage']));
    }
    if ($cmin != 0 || $cmax != 99) {
        // Not everybody who shows up in the network stream will be in your address book.
        // By default those that aren't are assumed to have closeness = 99; but this isn't
        // recorded anywhere. So if cmax is 99, we'll open the search up to anybody in
        // the stream with a NULL address book entry.
        $sql_nets .= " AND ";
        if ($cmax == 99) {
            $sql_nets .= " ( ";
        }
        $sql_nets .= "( abook.abook_closeness >= " . intval($cmin) . " ";
        $sql_nets .= " AND abook.abook_closeness <= " . intval($cmax) . " ) ";
        if ($cmax == 99) {
            $sql_nets .= " OR abook.abook_closeness IS NULL ) ";
        }
    }
    if ($firehose && !get_config('system', 'disable_discover_tab')) {
        require_once 'include/identity.php';
        $sys = get_sys_channel();
        $uids = " and item.uid  = " . intval($sys['channel_id']) . " ";
        $a->data['firehose'] = intval($sys['channel_id']);
    } else {
        $uids = " and item.uid = " . local_user() . " ";
    }
    $simple_update = $update ? " and ( item.item_flags & " . intval(ITEM_UNSEEN) . " ) " : '';
    // This fixes a very subtle bug so I'd better explain it. You wake up in the morning or return after a day
    // or three and look at your matrix page - after opening up your browser. The first page loads just as it
    // should. All of a sudden a few seconds later, page 2 will get inserted at the beginning of the page
    // (before the page 1 content). The update code is actually doing just what it's supposed
    // to, it's fetching posts that have the ITEM_UNSEEN bit set. But the reason that page 2 content is being
    // returned in an UPDATE is because you hadn't gotten that far yet - you're still on page 1 and everything
    // that we loaded for page 1 is now marked as seen. But the stuff on page 2 hasn't been. So... it's being
    // treated as "new fresh" content because it is unseen. We need to distinguish it somehow from content
    // which "arrived as you were reading page 1". We're going to do this
    // by storing in your session the current UTC time whenever you LOAD a network page, and only UPDATE items
    // which are both ITEM_UNSEEN and have "changed" since that time. Cross fingers...
    if ($update && $_SESSION['loadtime']) {
        $simple_update .= " and item.changed > '" . datetime_convert('UTC', 'UTC', $_SESSION['loadtime']) . "' ";
    }
    if ($load) {
        $simple_update = '';
    }
    if ($nouveau && $load) {
        // "New Item View" - show all items unthreaded in reverse created date order
        $items = q("SELECT `item`.*, `item`.`id` AS `item_id` FROM `item` \n\t\t\tWHERE true {$uids} AND item_restrict = 0 \n\t\t\t{$simple_update}\n\t\t\t{$sql_extra} {$sql_nets}\n\t\t\tORDER BY `item`.`received` DESC {$pager_sql} ");
        require_once 'include/items.php';
        xchan_query($items);
        $items = fetch_post_tags($items, true);
    } elseif ($update) {
        // Normal conversation view
        if ($order === 'post') {
            $ordering = "`created`";
        } else {
            $ordering = "`commented`";
        }
        if ($load) {
            $_SESSION['loadtime'] = datetime_convert();
            // Fetch a page full of parent items for this page
            $r = q("SELECT distinct item.id AS item_id FROM item \n\t\t\t\tleft join abook on item.author_xchan = abook.abook_xchan\n\t\t\t\tWHERE true {$uids} AND item.item_restrict = 0\n\t\t\t\tAND item.parent = item.id\n\t\t\t\tand ((abook.abook_flags & %d) = 0 or abook.abook_flags is null)\n\t\t\t\t{$sql_extra3} {$sql_extra} {$sql_nets}\n\t\t\t\tORDER BY item.{$ordering} DESC {$pager_sql} ", intval(ABOOK_FLAG_BLOCKED));
        } else {
            if (!$firehose) {
                // update
                $r = q("SELECT item.parent AS item_id FROM item\n\t\t\t\t\tleft join abook on item.author_xchan = abook.abook_xchan\n\t\t\t\t\tWHERE true {$uids} AND item.item_restrict = 0 {$simple_update}\n\t\t\t\t\tand ((abook.abook_flags & %d) = 0 or abook.abook_flags is null)\n\t\t\t\t\t{$sql_extra3} {$sql_extra} {$sql_nets} ", intval(ABOOK_FLAG_BLOCKED));
            }
        }
        // Then fetch all the children of the parents that are on this page
        $parents_str = '';
        $update_unseen = '';
        if ($r) {
            $parents_str = ids_to_querystr($r, 'item_id');
            $items = q("SELECT `item`.*, `item`.`id` AS `item_id` FROM `item` \n\t\t\t\tWHERE true {$uids} AND `item`.`item_restrict` = 0\n\t\t\t\tAND `item`.`parent` IN ( %s )\n\t\t\t\t{$sql_extra} ", dbesc($parents_str));
            xchan_query($items);
            $items = fetch_post_tags($items, true);
            $items = conv_sort($items, $ordering);
        } else {
            $items = array();
        }
        if ($parents_str) {
            $update_unseen = ' AND parent IN ( ' . dbesc($parents_str) . ' )';
        }
    }
    if ($update_unseen && !$firehose) {
        $r = q("UPDATE `item` SET item_flags = ( item_flags ^ %d)\n\t\t\tWHERE (item_flags & %d) AND `uid` = %d {$update_unseen} ", intval(ITEM_UNSEEN), intval(ITEM_UNSEEN), intval(local_user()));
    }
    $mode = $nouveau ? 'network-new' : 'network';
    $o .= conversation($a, $items, $mode, $update, 'client');
    if ($items && !$update) {
        $o .= alt_pager($a, count($items));
    }
    return $o;
}