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<?php
namespace Zotlabs\Lib;
define ( 'NWIKI_ITEM_RESOURCE_TYPE', 'nwiki' );
class NativeWiki {
static public function listwikis($channel, $observer_hash) {
$sql_extra = item_permissions_sql($channel['channel_id'], $observer_hash);
$wikis = q("SELECT * FROM item
WHERE resource_type = '%s' AND mid = parent_mid AND uid = %d AND item_deleted = 0 $sql_extra",
dbesc(NWIKI_ITEM_RESOURCE_TYPE),
intval($channel['channel_id'])
);
if($wikis) {
foreach($wikis as &$w) {
$w['json_allow_cid'] = acl2json($w['allow_cid']);
$w['json_allow_gid'] = acl2json($w['allow_gid']);
$w['json_deny_cid'] = acl2json($w['deny_cid']);
$w['json_deny_gid'] = acl2json($w['deny_gid']);
$w['rawName'] = get_iconfig($w, 'wiki', 'rawName');
$w['htmlName'] = escape_tags($w['rawName']);
$w['urlName'] = urlencode(urlencode($w['rawName']));
$w['mimeType'] = get_iconfig($w, 'wiki', 'mimeType');
$w['typelock'] = get_iconfig($w, 'wiki', 'typelock');
$w['lockstate'] = (($w['allow_cid'] || $w['allow_gid'] || $w['deny_cid'] || $w['deny_gid']) ? 'lock' : 'unlock');
}
}
// TODO: query db for wikis the observer can access. Return with two lists, for read and write access
return array('wikis' => $wikis);
}
function create_wiki($channel, $observer_hash, $wiki, $acl) {
// Generate unique resource_id using the same method as item_message_id()
do {
$dups = false;
$resource_id = random_string();
$r = q("SELECT mid FROM item WHERE resource_id = '%s' AND resource_type = '%s' AND uid = %d LIMIT 1",
dbesc($resource_id),
dbesc(NWIKI_ITEM_RESOURCE_TYPE),
intval($channel['channel_id'])
);
if($r)
$dups = true;
} while($dups == true);
$ac = $acl->get();
$mid = item_message_id();
$arr = array(); // Initialize the array of parameters for the post
$item_hidden = ((intval($wiki['postVisible']) === 0) ? 1 : 0);
$wiki_url = z_root() . '/wiki/' . $channel['channel_address'] . '/' . $wiki['urlName'];
$arr['aid'] = $channel['channel_account_id'];
$arr['uid'] = $channel['channel_id'];
$arr['mid'] = $mid;
$arr['parent_mid'] = $mid;
$arr['item_hidden'] = $item_hidden;
$arr['resource_type'] = NWIKI_ITEM_RESOURCE_TYPE;
$arr['resource_id'] = $resource_id;
$arr['owner_xchan'] = $channel['channel_hash'];
$arr['author_xchan'] = $observer_hash;
$arr['plink'] = z_root() . '/channel/' . $channel['channel_address'] . '/?f=&mid=' . urlencode($arr['mid']);
$arr['llink'] = $arr['plink'];
$arr['title'] = $wiki['htmlName']; // name of new wiki;
$arr['allow_cid'] = $ac['allow_cid'];
$arr['allow_gid'] = $ac['allow_gid'];
$arr['deny_cid'] = $ac['deny_cid'];
$arr['deny_gid'] = $ac['deny_gid'];
$arr['item_wall'] = 1;
$arr['item_origin'] = 1;
$arr['item_thread_top'] = 1;
$arr['item_private'] = intval($acl->is_private());
$arr['verb'] = ACTIVITY_CREATE;
$arr['obj_type'] = ACTIVITY_OBJ_WIKI;
$arr['body'] = '[table][tr][td][h1]New Wiki[/h1][/td][/tr][tr][td][zrl=' . $wiki_url . ']' . $wiki['htmlName'] . '[/zrl][/td][/tr][/table]';
$arr['public_policy'] = map_scope(\Zotlabs\Access\PermissionLimits::Get($channel['channel_id'],'view_wiki'),true);
// Save the wiki name information using iconfig. This is shareable.
if(! set_iconfig($arr, 'wiki', 'rawName', $wiki['rawName'], true)) {
return array('item' => null, 'success' => false);
}
if(! set_iconfig($arr, 'wiki', 'mimeType', $wiki['mimeType'], true)) {
return array('item' => null, 'success' => false);
}
set_iconfig($arr,'wiki','typelock',$wiki['typelock'],true);
$post = item_store($arr);
$item_id = $post['item_id'];
if($item_id) {
\Zotlabs\Daemon\Master::Summon(array('Notifier', 'activity', $item_id));
return array('item' => $post['item'], 'item_id' => $item_id, 'success' => true);
}
else {
return array('item' => null, 'success' => false);
}
}
function update_wiki($channel_id, $observer_hash, $arr, $acl) {
$w = self::get_wiki($channel_id, $observer_hash, $arr['resource_id']);
$item = $w['wiki'];
if(! $item) {
return array('item' => null, 'success' => false);
}
$x = $acl->get();
$item['allow_cid'] = $x['allow_cid'];
$item['allow_gid'] = $x['allow_gid'];
$item['deny_cid'] = $x['deny_cid'];
$item['deny_gid'] = $x['deny_gid'];
$item['item_private'] = intval($acl->is_private());
$update_title = false;
if($item['title'] !== $arr['updateRawName']) {
$update_title = true;
$item['title'] = $arr['updateRawName'];
}
$update = item_store_update($item);
$item_id = $update['item_id'];
if($update['item_id']) {
info( t('Wiki updated successfully'));
if($update_title) {
// Update the wiki name information using iconfig.
if(! set_iconfig($update['item_id'], 'wiki', 'rawName', $arr['updateRawName'], true)) {
return array('item' => null, 'success' => false);
}
}
return array('item' => $update['item'], 'item_id' => $update['item_id'], 'success' => $update['success']);
}
else {
return array('item' => null, 'success' => false);
}
}
static public function sync_a_wiki_item($uid,$id,$resource_id) {
$r = q("SELECT * from item WHERE uid = %d AND ( id = %d OR ( resource_type = '%s' and resource_id = '%s' )) ",
intval($uid),
intval($id),
dbesc(NWIKI_ITEM_RESOURCE_TYPE),
dbesc($resource_id)
);
if($r) {
$q = q("select * from item where resource_type = 'nwikipage' and resource_id = '%s'",
dbesc($r[0]['resource_type'])
);
if($q) {
$r = array_merge($r,$q);
}
xchan_query($r);
$sync_item = fetch_post_tags($r);
build_sync_packet($uid,array('wiki' => array(encode_item($sync_item[0],true))));
}
}
function delete_wiki($channel_id,$observer_hash,$resource_id) {
$w = self::get_wiki($channel_id,$observer_hash,$resource_id);
$item = $w['wiki'];
if(! $item) {
return array('item' => null, 'success' => false);
}
else {
$drop = drop_item($item['id'], false, DROPITEM_NORMAL, true);
}
info( t('Wiki files deleted successfully'));
return array('item' => $item, 'item_id' => $item['id'], 'success' => (($drop === 1) ? true : false));
}
static public function get_wiki($channel_id, $observer_hash, $resource_id) {
$sql_extra = item_permissions_sql($channel_id,$observer_hash);
$item = q("SELECT * FROM item WHERE uid = %d AND resource_type = '%s' AND resource_id = '%s' AND item_deleted = 0
$sql_extra limit 1",
intval($channel_id),
dbesc(NWIKI_ITEM_RESOURCE_TYPE),
dbesc($resource_id)
);
if(! $item) {
return array('wiki' => null);
}
else {
$w = $item[0]; // wiki item table record
// Get wiki metadata
$rawName = get_iconfig($w, 'wiki', 'rawName');
$mimeType = get_iconfig($w, 'wiki', 'mimeType');
$typelock = get_iconfig($w, 'wiki', 'typelock');
return array(
'wiki' => $w,
'rawName' => $rawName,
'htmlName' => escape_tags($rawName),
'urlName' => urlencode(urlencode($rawName)),
'mimeType' => $mimeType,
'typelock' => $typelock
);
}
}
static public function exists_by_name($uid, $urlName) {
$sql_extra = item_permissions_sql($uid);
$item = q("SELECT item.id, resource_id FROM item left join iconfig on iconfig.iid = item.id
WHERE resource_type = '%s' AND iconfig.v = '%s' AND uid = %d
AND item_deleted = 0 $sql_extra limit 1",
dbesc(NWIKI_ITEM_RESOURCE_TYPE),
dbesc(urldecode($urlName)),
intval($uid)
);
if($item) {
return array('id' => $item[0]['id'], 'resource_id' => $item[0]['resource_id']);
}
else {
return array('id' => null, 'resource_id' => null);
}
}
static public function get_permissions($resource_id, $owner_id, $observer_hash) {
// TODO: For now, only the owner can edit
$sql_extra = item_permissions_sql($owner_id, $observer_hash);
if(local_channel() && local_channel() == $owner_id) {
return [ 'read' => true, 'write' => true, 'success' => true ];
}
$r = q("SELECT * FROM item WHERE uid = %d and resource_type = '%s' AND resource_id = '%s' $sql_extra LIMIT 1",
intval($owner_id),
dbesc(NWIKI_ITEM_RESOURCE_TYPE),
dbesc($resource_id)
);
if(! $r) {
return array('read' => false, 'write' => false, 'success' => true);
}
else {
// TODO: Create a new permission setting for wiki analogous to webpages. Until
// then, use webpage permissions
$write = perm_is_allowed($owner_id, $observer_hash,'write_wiki');
return array('read' => true, 'write' => $write, 'success' => true);
}
}
}
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