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<?php
/**
* @file include/acl_selectors.php
*
* @package acl_selectors
*/
function fixacl(&$item) {
$item = str_replace( [ '<', '>' ], [ '', '' ], $item);
}
/**
* Builds a modal dialog for editing permissions, using acl_selector.tpl as the template.
*
* @param array $defaults Optional access control list for the initial state of the dialog.
* @param boolean $show_jotnets Whether plugins for federated networks should be included in the permissions dialog
* @param \Zotlabs\Lib\PermissionDescription $emptyACL_description - An optional description for the permission implied by selecting an empty ACL. Preferably an instance of PermissionDescription.
* @param string $dialog_description Optional message to include at the top of the dialog. E.g. "Warning: Post permissions cannot be changed once sent".
* @param string $context_help Allows the dialog to present a help icon. E.g. "acl_dialog_post"
* @param boolean $readonly Not implemented yet. When implemented, the dialog will use acl_readonly.tpl instead, so that permissions may be viewed for posts that can no longer have their permissions changed.
*
* @return string html modal dialog built from acl_selector.tpl
*/
function populate_acl($defaults = null,$show_jotnets = true, $emptyACL_description = '', $dialog_description = '', $context_help = '', $readonly = false) {
$allow_cid = $allow_gid = $deny_cid = $deny_gid = false;
$showall_origin = '';
$showall_icon = 'fa-globe';
$role = get_pconfig(local_channel(), 'system', 'permissions_role');
if(! $emptyACL_description) {
$showall_caption = t('Visible to your default audience');
} else if(is_a($emptyACL_description, '\\Zotlabs\\Lib\\PermissionDescription')) {
$showall_caption = $emptyACL_description->get_permission_description();
$showall_origin = (($role === 'custom') ? $emptyACL_description->get_permission_origin_description() : '');
$showall_icon = $emptyACL_description->get_permission_icon();
} else {
// For backwards compatibility we still accept a string... for now!
$showall_caption = $emptyACL_description;
}
if(is_array($defaults)) {
$allow_cid = ((strlen($defaults['allow_cid']))
? explode('><', $defaults['allow_cid']) : array() );
$allow_gid = ((strlen($defaults['allow_gid']))
? explode('><', $defaults['allow_gid']) : array() );
$deny_cid = ((strlen($defaults['deny_cid']))
? explode('><', $defaults['deny_cid']) : array() );
$deny_gid = ((strlen($defaults['deny_gid']))
? explode('><', $defaults['deny_gid']) : array() );
array_walk($allow_cid,'fixacl');
array_walk($allow_gid,'fixacl');
array_walk($deny_cid,'fixacl');
array_walk($deny_gid,'fixacl');
}
$channel = ((local_channel()) ? \App::get_channel() : '');
$has_acl = false;
$single_group = false;
$just_me = false;
$custom = false;
if($allow_cid || $allow_gid || $deny_gid || $deny_cid) {
$has_acl = true;
$custom = true;
}
if(count($allow_gid) === 1 && (! $allow_cid) && (! $deny_gid) && (! $deny_cid)) {
$single_group = true;
$custom = false;
}
if(count($allow_cid) === 1 && $channel && $allow_cid[0] = $channel['channel_hash'] && (! $allow_gid) && (! $deny_gid) && (! $deny_cid)) {
$just_me = true;
$custom = false;
}
$r = q("SELECT id, hash, gname FROM pgrp WHERE deleted = 0 AND uid = %d ORDER BY gname ASC",
intval(local_channel())
);
if($r) {
$groups .= '<optgroup label = "' . t('Privacy Groups').'">';
foreach($r as $rr) {
$selected = (($single_group && $rr['hash'] === $allow_gid[0]) ? ' selected = "selected" ' : '');
$groups .= '<option id="' . $rr['id'] . '" value="' . $rr['hash'] . '"' . $selected . '>' . $rr['gname'] . '</option>' . "\r\n";
}
$groups .= '</optgroup>';
}
$r = q("SELECT id, profile_guid, profile_name from profile where is_default = 0 and uid = %d order by profile_name",
intval(local_channel())
);
if($r) {
$groups .= '<optgroup label = "' . t('Profile-Based Privacy Groups').'">';
foreach($r as $rv) {
$selected = (($single_group && 'vp.' . $rv['profile_guid'] === $allow_gid[0]) ? ' selected = "selected" ' : '');
$groups .= '<option id="' . 'vp' . $rv['id'] . '" value="' . 'vp.' . $rv['profile_guid'] . '"' . $selected . '>' . $rv['profile_name'] . '</option>' . "\r\n";
}
$groups .= '</optgroup>';
}
// $dialog_description is only set in places where we set permissions for a post.
// Abuse this fact to decide if forums should be displayed or not.
if($dialog_description) {
$forums = get_forum_channels(local_channel(),1);
if($forums) {
$groups .= '<optgroup label = "' . t('Forums').'">';
foreach($forums as $f) {
$private = (($f['private_forum']) ? ' (' . t('Private Forum') . ')' : '');
$selected = (($single_group && $f['hash'] === $allow_cid[0]) ? ' selected = "selected" ' : '');
$groups .= '<option id="^' . $f['abook_id'] . '" value="^' . $f['xchan_hash'] . '"' . $selected . '>' . $f['xchan_name'] . $private . '</option>' . "\r\n";
}
$groups .= '</optgroup>';
}
}
$tpl = get_markup_template("acl_selector.tpl");
$o = replace_macros($tpl, array(
'$showall' => $showall_caption,
'$onlyme' => t('Only me'),
'$groups' => $groups,
'$public_selected' => (($has_acl) ? false : true),
'$justme_selected' => $just_me,
'$custom_selected' => $custom,
'$showallOrigin' => $showall_origin,
'$showallIcon' => $showall_icon,
'$select_label' => t('Share with'),
'$custom' => t('Custom selection'),
'$custom_label' => t('Advanced'),
'$showlimitedDesc' => t('Select "Allow" to allow viewing. "Don\'t allow" lets you override and limit the scope of "Allow".'),
'$show' => t('Allow'),
'$hide' => t("Don't allow"),
'$search' => t('Search'),
'$allowcid' => json_encode($allow_cid),
'$allowgid' => json_encode($allow_gid),
'$denycid' => json_encode($deny_cid),
'$denygid' => json_encode($deny_gid),
'$aclModalTitle' => t('Permissions'),
'$aclModalDesc' => $dialog_description,
'$aclModalDismiss' => t('Close'),
'$helpUrl' => (($context_help == '') ? '' : (z_root() . '/help/' . $context_help))
));
return $o;
}
/**
* Returns a string that's suitable for passing as the $dialog_description argument to a
* populate_acl() call for wall posts or network posts.
*
* This string is needed in 3 different files, and our .po translation system currently
* cannot be used as a string table (because the value is always the key in english) so
* I've centralized the value here (making this function name the "key") until we have a
* better way.
*
* @return string Description to present to user in modal permissions dialog
*/
function get_post_aclDialogDescription() {
// I'm trying to make two points in this description text - warn about finality of wall
// post permissions, and try to clear up confusion that these permissions set who is
// *shown* the post, istead of who is able to see the post, i.e. make it clear that clicking
// the "Show" button on a group does not post it to the feed of people in that group, it
// mearly allows those people to view the post if they are viewing/following this channel.
$description = t('Post permissions %s cannot be changed %s after a post is shared.</br />These permissions set who is allowed to view the post.');
// Lets keep the emphasis styling seperate from the translation. It may change.
$emphasisOpen = '<b><a href="' . z_root() . '/help/acl_dialog_post" target="hubzilla-help">';
$emphasisClose = '</a></b>';
return sprintf($description, $emphasisOpen, $emphasisClose);
}
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