friendica/mod/lockview.php

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<?php
use Friendica\App;
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use Friendica\Database\DBM;
function lockview_content(App $a) {
$type = (($a->argc > 1) ? $a->argv[1] : 0);
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if (is_numeric($type)) {
$item_id = intval($type);
$type='item';
} else {
$item_id = (($a->argc > 2) ? intval($a->argv[2]) : 0);
}
if(! $item_id)
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killme();
if (!in_array($type, ['item','photo','event']))
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killme();
$r = q("SELECT * FROM `%s` WHERE `id` = %d LIMIT 1",
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dbesc($type),
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intval($item_id)
);
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if (! DBM::is_result($r)) {
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killme();
}
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$item = $r[0];
call_hooks('lockview_content', $item);
if($item['uid'] != local_user()) {
echo t('Remote privacy information not available.') . '<br />';
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killme();
}
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if(($item['private'] == 1) && (! strlen($item['allow_cid'])) && (! strlen($item['allow_gid']))
&& (! strlen($item['deny_cid'])) && (! strlen($item['deny_gid']))) {
echo t('Remote privacy information not available.') . '<br />';
killme();
}
$allowed_users = expand_acl($item['allow_cid']);
$allowed_groups = expand_acl($item['allow_gid']);
$deny_users = expand_acl($item['deny_cid']);
$deny_groups = expand_acl($item['deny_gid']);
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$o = t('Visible to:') . '<br />';
$l = [];
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if(count($allowed_groups)) {
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$r = q("SELECT `name` FROM `group` WHERE `id` IN ( %s )",
dbesc(implode(', ', $allowed_groups))
);
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if (DBM::is_result($r))
foreach($r as $rr)
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$l[] = '<b>' . $rr['name'] . '</b>';
}
if(count($allowed_users)) {
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$r = q("SELECT `name` FROM `contact` WHERE `id` IN ( %s )",
dbesc(implode(', ',$allowed_users))
);
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if (DBM::is_result($r))
foreach($r as $rr)
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$l[] = $rr['name'];
}
if(count($deny_groups)) {
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$r = q("SELECT `name` FROM `group` WHERE `id` IN ( %s )",
dbesc(implode(', ', $deny_groups))
);
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if (DBM::is_result($r))
foreach($r as $rr)
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$l[] = '<b><strike>' . $rr['name'] . '</strike></b>';
}
if(count($deny_users)) {
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$r = q("SELECT `name` FROM `contact` WHERE `id` IN ( %s )",
dbesc(implode(', ',$deny_users))
);
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if (DBM::is_result($r))
foreach($r as $rr)
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$l[] = '<strike>' . $rr['name'] . '</strike>';
}
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echo $o . implode(', ', $l);
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killme();
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}