move wiki to addons

2 files changed, 0 insertions, 1047 deletions

diff --git a/Zotlabs/Lib/NativeWiki.php b/Zotlabs/Lib/NativeWiki.php
deleted file mode 100644
index bf4ac8e87..000000000
--- a/Zotlabs/Lib/NativeWiki.php
+++ /dev/null
@@ -1,322 +0,0 @@
-<?php
-
-namespace Zotlabs\Lib;
-
-use Zotlabs\Lib\Libsync;
-
-define ( 'NWIKI_ITEM_RESOURCE_TYPE', 'nwiki' );
-
-class NativeWiki {
-
-
-	public static 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']));
-				$w['urlName']  = self::name_encode($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' => $wikis);
-	}
-
-
-	public static function create_wiki($channel, $observer_hash, $wiki, $acl) {
-
-		$resource_id = new_uuid();
-		$uuid = new_uuid();
-
-		$ac = $acl->get();
-		$mid = z_root() . '/item/' . $uuid;
-
-		$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['uuid'] = $uuid;
-		$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'] = $mid;
-		$arr['llink'] = z_root() . '/display/' . gen_link_id($mid);
-		$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'] = 'Document';
-		$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' => $item_id, 'success' => true);
-		}
-		else {
-			return array('item' => null, 'success' => false);
-		}
-	}
-
-
-	public static function update_wiki($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 = $update['item_id'];
-
-		// update acl for any existing wiki pages
-
-		q("update item set allow_cid = '%s', allow_gid = '%s', deny_cid = '%s', deny_gid = '%s', item_private = %d where resource_type = 'nwikipage' and resource_id = '%s'",
-			dbesc($item['allow_cid']),
-			dbesc($item['allow_gid']),
-			dbesc($item['deny_cid']),
-			dbesc($item['deny_gid']),
-			dbesc($item['item_private']),
-			dbesc($arr['resource_id'])
-		);
-
-
-		if($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' => $update['success']);
-		}
-		else {
-			return array('item' => null, 'success' => false);
-		}
-	}
-
-
-	public static function sync_a_wiki_item($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_id'])
-			);
-			if($q) {
-				$r = array_merge($r,$q);
-			}
-			xchan_query($r);
-			$sync_item = fetch_post_tags($r);
-			if($sync_item) {
-				$pkt = [];
-				foreach($sync_item as $w) {
-					$pkt[] = encode_item($w,true);
-				}
-				Libsync::build_sync_packet($uid,array('wiki' => $pkt));
-			}
-		}
-	}
-
-
-	public static function delete_wiki($channel_id,$observer_hash,$resource_id) {
-
-		$w = self::get_wiki($channel_id,$observer_hash,$resource_id);
-		if(! $w['wiki']) {
-			return [ 'success' => false ];
-		}
-		else {
-
-			$r = q("SELECT id FROM item WHERE uid = %s AND resource_id = '%s'",
-				intval($channel_id),
-				dbesc($resource_id)
-			);
-
-			$ids = array_column($r, 'id');
-			drop_items($ids, true, DROPITEM_PHASE1);
-
-			info(t('Wiki files deleted successfully'));
-
-			return [ 'success' => true ];
-		}
-	}
-
-
-	public static function get_wiki($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
-			$sql_extra ORDER BY id LIMIT 1",
-			intval($channel_id),
-			dbesc(NWIKI_ITEM_RESOURCE_TYPE),
-			dbesc($resource_id)
-		);
-		if(! $item) {
-			return [ '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($rawName)),
-				'urlName'  => self::name_encode($rawName),
-				'mimeType' => $mimeType,
-				'typelock' => $typelock
-			);
-		}
-	}
-
-
-	public static function exists_by_name($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)),
-			dbesc(self::name_decode($urlName)),
-			intval($uid)
-		);
-
-		if($item) {
-			return array('id' => $item[0]['id'], 'resource_id' => $item[0]['resource_id']);
-		}
-		else {
-			return array('id' => null, 'resource_id' => null);
-		}
-	}
-
-
-	public static function get_permissions($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 {
-			$write = perm_is_allowed($owner_id, $observer_hash,'write_wiki');
-			return array('read' => true, 'write' => $write, 'success' => true);
-		}
-	}
-
-
-	public static function name_encode ($string) {
-
-		$string = html_entity_decode($string);
-		$encoding = mb_internal_encoding();
-		mb_internal_encoding("UTF-8");
-		$ret = mb_ereg_replace_callback ('[^A-Za-z0-9\-\_\.\~]',function ($char) {
-	                $charhex = unpack('H*',$char[0]);
-                	$ret = '('.$charhex[1].')';
-                	return $ret;
- 			}
-			,$string);
-		mb_internal_encoding($encoding);
-		return $ret;
-	}
-
-
-	public static function name_decode ($string) {
-
-		$encoding = mb_internal_encoding();
-		mb_internal_encoding("UTF-8");
-		$ret = mb_ereg_replace_callback ('(\(([0-9a-f]+)\))',function ($chars) {
-			return pack('H*',$chars[2]);
-			}
-			,$string);
-		mb_internal_encoding($encoding);
-		return $ret;
-	}
-
-}
diff --git a/Zotlabs/Lib/NativeWikiPage.php b/Zotlabs/Lib/NativeWikiPage.php
deleted file mode 100644
index 1e944f7ac..000000000
--- a/Zotlabs/Lib/NativeWikiPage.php
+++ /dev/null
@@ -1,725 +0,0 @@
-<?php
-
-namespace Zotlabs\Lib;
-
-use App;
-use Zotlabs\Access\PermissionLimits;
-
-class NativeWikiPage {
-
-	static public function page_list($channel_id, $observer_hash, $resource_id) {
-
-		// TODO: Create item table records for pages so that metadata like title can be applied
-		$w = NativeWiki::get_wiki($channel_id, $observer_hash, $resource_id);
-
-		$pages[] = [
-			'resource_id' => '',
-			'title'       => 'Home',
-			'url'         => 'Home',
-			'link_id'     => 'id_wiki_home_0'
-		];
-
-		$sql_extra = item_permissions_sql($channel_id, $observer_hash);
-
-		$r = q("select * from item where resource_type = 'nwikipage' and resource_id = '%s' and uid = %d and item_deleted = 0
-			$sql_extra order by title asc",
-			dbesc($resource_id),
-			intval($channel_id)
-		);
-		if ($r) {
-			$x = [];
-			$y = [];
-
-			foreach ($r as $rv) {
-				if (!in_array($rv['mid'], $x)) {
-					$y[] = $rv;
-					$x[] = $rv['mid'];
-				}
-			}
-
-			$items = fetch_post_tags($y, true);
-
-			foreach ($items as $page_item) {
-				$title = get_iconfig($page_item['id'], 'nwikipage', 'pagetitle', t('(No Title)'));
-				if (urldecode($title) !== 'Home') {
-					$pages[] = [
-						'resource_id' => $resource_id,
-						'title'       => escape_tags($title),
-						//'url'         => str_replace('%2F','/',urlencode(str_replace('%2F','/',urlencode($title)))),
-						'url'         => NativeWiki::name_encode($title),
-						'link_id'     => 'id_' . substr($resource_id, 0, 10) . '_' . $page_item['id']
-					];
-				}
-			}
-		}
-
-		return ['pages' => $pages, 'wiki' => $w];
-	}
-
-
-	static public function create_page($channel, $observer_hash, $name, $resource_id, $mimetype = 'text/bbcode') {
-
-		logger('mimetype: ' . $mimetype);
-
-		if (!in_array($mimetype, ['text/markdown', 'text/bbcode', 'text/plain', 'text/html']))
-			$mimetype = 'text/markdown';
-
-		$w = NativeWiki::get_wiki($channel['channel_id'], $observer_hash, $resource_id);
-
-		if (!$w['wiki']) {
-			return ['content' => null, 'message' => 'Error reading wiki', 'success' => false];
-		}
-
-		// backslashes won't work well in the javascript functions
-		$name = str_replace('\\', '', $name);
-
-		$uuid = new_uuid();
-		$mid  = z_root() . '/item/' . $uuid;
-
-		// create an empty activity
-		$arr                    = [];
-		$arr['aid']             = $channel['channel_account_id'];
-		$arr['uid']             = $channel['channel_id'];
-		$arr['mid']             = $mid;
-		$arr['parent_mid']      = $w['wiki']['mid'];
-		$arr['parent']          = $w['wiki']['parent'];
-		$arr['uuid']            = $uuid;
-		$arr['item_hidden']     = $w['wiki']['item_hidden'];
-		$arr['plink']           = $mid;
-		$arr['llink']           = z_root() . '/display/' . gen_link_id($mid);
-		$arr['author_xchan']    = $observer_hash;
-		$arr['mimetype']        = $mimetype;
-		$arr['title']           = $name;
-		$arr['resource_type']   = 'nwikipage';
-		$arr['resource_id']     = $resource_id;
-		$arr['allow_cid']       = $w['wiki']['allow_cid'];
-		$arr['allow_gid']       = $w['wiki']['allow_gid'];
-		$arr['deny_cid']        = $w['wiki']['deny_cid'];
-		$arr['deny_gid']        = $w['wiki']['deny_gid'];
-		$arr['item_private']    = $w['wiki']['item_private'];
-		$arr['item_wall']       = 1;
-		$arr['item_origin']     = 1;
-		$arr['item_thread_top'] = 1;
-		$arr['verb']            = ACTIVITY_CREATE;
-		$arr['obj_type']        = 'Document';
-		// TODO: add an object?
-		$arr['public_policy'] = map_scope(PermissionLimits::Get($channel['channel_id'], 'view_wiki'), true);
-
-		// We may wish to change this some day.
-		$arr['item_unpublished'] = 1;
-
-		set_iconfig($arr, 'nwikipage', 'pagetitle', (($name) ? $name : t('(No Title)')), true);
-		$p = item_store($arr, false, false);
-
-		if ($p['item_id']) {
-			$page = [
-				'rawName'  => $name,
-				'htmlName' => escape_tags($name),
-				//'urlName'  => urlencode($name),
-				'urlName'  => NativeWiki::name_encode($name)
-
-			];
-
-			return ['page' => $page, 'item_id' => $p['item_id'], 'item' => $p['activity'], 'wiki' => $w, 'message' => '', 'success' => true];
-		}
-		return ['success' => false, 'message' => t('Wiki page create failed.')];
-	}
-
-
-	static public function rename_page($arr) {
-
-		$pageUrlName   = ((array_key_exists('pageUrlName', $arr)) ? $arr['pageUrlName'] : '');
-		$pageNewName   = ((array_key_exists('pageNewName', $arr)) ? $arr['pageNewName'] : '');
-		$resource_id   = ((array_key_exists('resource_id', $arr)) ? $arr['resource_id'] : '');
-		$observer_hash = ((array_key_exists('observer_hash', $arr)) ? $arr['observer_hash'] : '');
-		$channel_id    = ((array_key_exists('channel_id', $arr)) ? $arr['channel_id'] : 0);
-
-		$w = NativeWiki::get_wiki($channel_id, $observer_hash, $resource_id);
-		if (!$w['wiki']) {
-			return ['message' => t('Wiki not found.'), 'success' => false];
-		}
-
-
-		$ic = q("select * from iconfig left join item on iconfig.iid = item.id
-			where uid = %d and cat = 'nwikipage' and k = 'pagetitle' and v = '%s'",
-			intval($channel_id),
-			dbesc($pageNewName)
-		);
-
-		if ($ic) {
-			return ['success' => false, 'message' => t('Destination name already exists')];
-		}
-
-
-		$ids = [];
-
-		$ic = q("select *, item.id as item_id from iconfig left join item on iconfig.iid = item.id
-			where uid = %d and cat = 'nwikipage' and k = 'pagetitle' and v = '%s'",
-			intval($channel_id),
-			dbesc($pageUrlName)
-		);
-
-		if ($ic) {
-			foreach ($ic as $c) {
-				set_iconfig($c['item_id'], 'nwikipage', 'pagetitle', $pageNewName);
-				$ids[] = $c['item_id'];
-			}
-
-			$str_ids = implode(',', $ids);
-			q("update item set title = '%s' where id in ($str_ids)",
-				dbesc($pageNewName)
-			);
-
-			$page = [
-				'rawName'  => $pageNewName,
-				'htmlName' => escape_tags($pageNewName),
-				//'urlName'  => urlencode(escape_tags($pageNewName))
-				'urlName'  => NativeWiki::name_encode($pageNewName)
-			];
-
-			return ['success' => true, 'page' => $page];
-		}
-
-		return ['success' => false, 'message' => t('Page not found')];
-
-	}
-
-
-	static public function get_page_content($arr) {
-
-		$resource_id   = ((array_key_exists('resource_id', $arr)) ? $arr['resource_id'] : '');
-		$observer_hash = ((array_key_exists('observer_hash', $arr)) ? $arr['observer_hash'] : '');
-		$channel_id    = ((array_key_exists('channel_id', $arr)) ? intval($arr['channel_id']) : 0);
-
-		$w = NativeWiki::get_wiki($channel_id, $observer_hash, $resource_id);
-		if (!$w['wiki']) {
-			return ['content' => null, 'message' => 'Error reading wiki', 'success' => false];
-		}
-
-		$item = self::load_page($arr);
-
-		if ($item) {
-			$content = $item['body'];
-
-			return [
-				'content'      => $content,
-				'mimeType'     => $w['mimeType'],
-				'pageMimeType' => $item['mimetype'],
-				'message'      => '',
-				'success'      => true
-			];
-		}
-
-		return ['content' => null, 'message' => t('Error reading page content'), 'success' => false];
-
-	}
-
-
-	static public function page_history($arr) {
-
-		$resource_id   = ((array_key_exists('resource_id', $arr)) ? $arr['resource_id'] : '');
-		$observer_hash = ((array_key_exists('observer_hash', $arr)) ? $arr['observer_hash'] : '');
-		$channel_id    = ((array_key_exists('channel_id', $arr)) ? $arr['channel_id'] : 0);
-
-		$w = NativeWiki::get_wiki($channel_id, $observer_hash, $resource_id);
-		if (!$w['wiki']) {
-			return ['history' => null, 'message' => 'Error reading wiki', 'success' => false];
-		}
-
-		$items = self::load_page_history($arr);
-
-		$history = [];
-
-		if ($items) {
-			$processed = 0;
-			foreach ($items as $item) {
-				if ($processed > 1000)
-					break;
-				$processed++;
-				$history[] = [
-					'revision' => $item['revision'],
-					'date'     => datetime_convert('UTC', date_default_timezone_get(), $item['edited']),
-					'name'     => $item['author']['xchan_name'],
-					'title'    => get_iconfig($item, 'nwikipage', 'commit_msg')
-				];
-
-			}
-
-			return ['success' => true, 'history' => $history];
-		}
-
-		return ['success' => false];
-
-	}
-
-
-	static public function load_page($arr) {
-
-		$pageUrlName   = ((array_key_exists('pageUrlName', $arr)) ? $arr['pageUrlName'] : '');
-		$resource_id   = ((array_key_exists('resource_id', $arr)) ? $arr['resource_id'] : '');
-		$observer_hash = ((array_key_exists('observer_hash', $arr)) ? $arr['observer_hash'] : '');
-		$channel_id    = ((array_key_exists('channel_id', $arr)) ? $arr['channel_id'] : 0);
-		$revision      = ((array_key_exists('revision', $arr)) ? $arr['revision'] : (-1));
-
-		$w = NativeWiki::get_wiki($channel_id, $observer_hash, $resource_id);
-
-		if (!$w['wiki']) {
-			return ['content' => null, 'message' => 'Error reading wiki', 'success' => false];
-		}
-
-		$ids = '';
-
-		$ic = q("select * from iconfig left join item on iconfig.iid = item.id where uid = %d and cat = 'nwikipage' and k = 'pagetitle' and v = '%s'",
-			intval($channel_id),
-			dbesc($pageUrlName)
-		);
-
-		if ($ic) {
-			foreach ($ic as $c) {
-				if ($ids)
-					$ids .= ',';
-				$ids .= intval($c['iid']);
-			}
-		}
-
-		$sql_extra = item_permissions_sql($channel_id, $observer_hash);
-
-		if ($revision == (-1))
-			$sql_extra .= " order by revision desc ";
-		elseif ($revision)
-			$sql_extra .= " and revision = " . intval($revision) . " ";
-
-		$r = null;
-
-
-		if ($ids) {
-			$r = q("select * from item where resource_type = 'nwikipage' and resource_id = '%s' and uid = %d and id in ( $ids ) $sql_extra limit 1",
-				dbesc($resource_id),
-				intval($channel_id)
-			);
-
-			if ($r) {
-				$items = fetch_post_tags($r, true);
-				return $items[0];
-			}
-		}
-
-		return null;
-	}
-
-
-	static public function load_page_history($arr) {
-
-		$pageUrlName   = ((array_key_exists('pageUrlName', $arr)) ? $arr['pageUrlName'] : '');
-		$resource_id   = ((array_key_exists('resource_id', $arr)) ? $arr['resource_id'] : '');
-		$observer_hash = ((array_key_exists('observer_hash', $arr)) ? $arr['observer_hash'] : '');
-		$channel_id    = ((array_key_exists('channel_id', $arr)) ? $arr['channel_id'] : 0);
-
-		$w = NativeWiki::get_wiki($channel_id, $observer_hash, $resource_id);
-		if (!$w['wiki']) {
-			return ['content' => null, 'message' => 'Error reading wiki', 'success' => false];
-		}
-
-		$ids = '';
-
-		$ic = q("select * from iconfig left join item on iconfig.iid = item.id where uid = %d and cat = 'nwikipage' and k = 'pagetitle' and v = '%s'",
-			intval($channel_id),
-			dbesc($pageUrlName)
-		);
-
-		if ($ic) {
-			foreach ($ic as $c) {
-				if ($ids)
-					$ids .= ',';
-				$ids .= intval($c['iid']);
-			}
-		}
-
-		$sql_extra = item_permissions_sql($channel_id, $observer_hash);
-
-		$sql_extra .= " order by revision desc ";
-
-		$r = null;
-		if ($ids) {
-			$r = q("select * from item where resource_type = 'nwikipage' and resource_id = '%s' and uid = %d and id in ( $ids ) and item_deleted = 0 $sql_extra",
-				dbesc($resource_id),
-				intval($channel_id)
-			);
-			if ($r) {
-				xchan_query($r);
-				$items = fetch_post_tags($r, true);
-				return $items;
-			}
-		}
-
-		return null;
-	}
-
-
-	static public function save_page($arr) {
-		$pageUrlName   = ((array_key_exists('pageUrlName', $arr)) ? $arr['pageUrlName'] : '');
-		$content       = ((array_key_exists('content', $arr)) ? $arr['content'] : '');
-		$resource_id   = ((array_key_exists('resource_id', $arr)) ? $arr['resource_id'] : '');
-		$observer_hash = ((array_key_exists('observer_hash', $arr)) ? $arr['observer_hash'] : '');
-		$channel_id    = ((array_key_exists('channel_id', $arr)) ? $arr['channel_id'] : 0);
-
-		$w = NativeWiki::get_wiki($channel_id, $observer_hash, $resource_id);
-
-		if (!$w['wiki']) {
-			return ['message' => t('Error reading wiki'), 'success' => false];
-		}
-
-
-		// fetch the most recently saved revision.
-
-		$item = self::load_page($arr);
-
-		if (!$item) {
-			return ['message' => t('Page not found'), 'success' => false];
-		}
-
-		$mimetype = $item['mimetype'];
-
-		// change just the fields we need to change to create a revision;
-
-		unset($item['id']);
-		unset($item['author']);
-		$item['parent']       = 0;
-		$item['body']         = $content;
-		$item['author_xchan'] = $observer_hash;
-		$item['revision']     = (($arr['revision']) ? intval($arr['revision']) + 1 : intval($item['revision']) + 1);
-		$item['edited']       = datetime_convert();
-		$item['mimetype']     = $mimetype;
-
-		if ($item['iconfig'] && is_array($item['iconfig']) && count($item['iconfig'])) {
-			for ($x = 0; $x < count($item['iconfig']); $x++) {
-				unset($item['iconfig'][$x]['id']);
-				unset($item['iconfig'][$x]['iid']);
-			}
-		}
-
-		$ret = item_store($item, false, false);
-
-		if ($ret['item_id'])
-			return ['message' => '', 'item_id' => $ret['item_id'], 'filename' => $pageUrlName, 'success' => true];
-		else
-			return ['message' => t('Page update failed.'), 'success' => false];
-	}
-
-
-	static public function delete_page($arr) {
-
-		$pageUrlName   = (array_key_exists('pageUrlName', $arr) ? $arr['pageUrlName'] : '');
-		$resource_id   = (array_key_exists('resource_id', $arr) ? $arr['resource_id'] : '');
-		$observer_hash = (array_key_exists('observer_hash', $arr) ? $arr['observer_hash'] : '');
-		$channel_id    = (array_key_exists('channel_id', $arr) ? $arr['channel_id'] : 0);
-
-		$w = NativeWiki::get_wiki($channel_id, $observer_hash, $resource_id);
-		if (!$w['wiki']) {
-			return ['success' => false, 'message' => t('Error reading wiki')];
-		}
-
-		$ids = [];
-
-		$ic = q("select * from iconfig left join item on iconfig.iid = item.id
-			where uid = %d and cat = 'nwikipage' and k = 'pagetitle' and v = '%s'",
-			intval($channel_id),
-			dbesc($pageUrlName)
-		);
-
-		if ($ic) {
-			foreach ($ic as $c) {
-				$ids[] = intval($c['iid']);
-			}
-		}
-
-		if ($ids) {
-			drop_items($ids, true, DROPITEM_PHASE1);
-			return ['success' => true];
-		}
-
-		return ['success' => false, 'message' => t('Nothing deleted')];
-	}
-
-
-	static public function revert_page($arr) {
-
-		$resource_id   = ((array_key_exists('resource_id', $arr)) ? $arr['resource_id'] : '');
-		$commitHash    = ((array_key_exists('commitHash', $arr)) ? $arr['commitHash'] : null);
-		$observer_hash = ((array_key_exists('observer_hash', $arr)) ? $arr['observer_hash'] : '');
-		$channel_id    = ((array_key_exists('channel_id', $arr)) ? $arr['channel_id'] : 0);
-
-		if (!$commitHash) {
-			return ['message' => 'No commit was provided', 'success' => false];
-		}
-
-		$w = NativeWiki::get_wiki($channel_id, $observer_hash, $resource_id);
-		if (!$w['wiki']) {
-			return ['message' => 'Error reading wiki', 'success' => false];
-		}
-
-		$x = $arr;
-
-		if (intval($commitHash) > 0) {
-			unset($x['commitHash']);
-			$x['revision'] = intval($commitHash) - 1;
-			$loaded        = self::load_page($x);
-
-			if ($loaded) {
-				$content = $loaded['body'];
-				return ['content' => $content, 'success' => true];
-			}
-			return ['success' => false];
-		}
-	}
-
-
-	static public function compare_page($arr) {
-
-		$resource_id   = ((array_key_exists('resource_id', $arr)) ? $arr['resource_id'] : '');
-		$compareCommit = ((array_key_exists('compareCommit', $arr)) ? $arr['compareCommit'] : 0);
-		$observer_hash = ((array_key_exists('observer_hash', $arr)) ? $arr['observer_hash'] : '');
-		$channel_id    = ((array_key_exists('channel_id', $arr)) ? $arr['channel_id'] : 0);
-
-		$w = NativeWiki::get_wiki($channel_id, $observer_hash, $resource_id);
-
-		if (!$w['wiki']) {
-			return ['message' => t('Error reading wiki'), 'success' => false];
-		}
-
-		$x             = $arr;
-		$x['revision'] = (-1);
-
-		$currpage = self::load_page($x);
-		if ($currpage)
-			$currentContent = $currpage['body'];
-
-		$x['revision'] = $compareCommit;
-		$comppage      = self::load_page($x);
-		if ($comppage)
-			$compareContent = $comppage['body'];
-
-		if ($currpage && $comppage) {
-			require_once('library/class.Diff.php');
-			$diff = \Diff::toTable(\Diff::compare($currentContent, $compareContent));
-
-			return ['success' => true, 'diff' => $diff];
-		}
-		return ['success' => false, 'message' => t('Compare: object not found.')];
-
-	}
-
-
-	static public function commit($arr) {
-
-		$commit_msg    = ((array_key_exists('commit_msg', $arr)) ? $arr['commit_msg'] : t('Page updated'));
-		$observer_hash = ((array_key_exists('observer_hash', $arr)) ? $arr['observer_hash'] : '');
-		$channel_id    = ((array_key_exists('channel_id', $arr)) ? $arr['channel_id'] : 0);
-
-		if (array_key_exists('resource_id', $arr)) {
-			$resource_id = $arr['resource_id'];
-		}
-		else {
-			return ['message' => t('Wiki resource_id required for git commit'), 'success' => false];
-		}
-
-		$w = NativeWiki::get_wiki($channel_id, $observer_hash, $resource_id);
-		if (!$w['wiki']) {
-			return ['message' => t('Error reading wiki'), 'success' => false];
-		}
-
-
-		$page = self::load_page($arr);
-
-		if ($page) {
-			set_iconfig($page['id'], 'nwikipage', 'commit_msg', escape_tags($commit_msg), true);
-			return ['success' => true, 'item_id' => $page['id'], 'page' => $page];
-		}
-
-		return ['success' => false, 'message' => t('Page not found.')];
-
-	}
-
-	static public function convert_links($s, $wikiURL) {
-
-		if (strpos($s, '[[') !== false) {
-			preg_match_all("/\[\[(.*?)\]\]/", $s, $match);
-			$pages = $pageURLs = [];
-			foreach ($match[1] as $m) {
-				// TODO: Why do we need to double urlencode for this to work?
-				//$pageURLs[] = urlencode(urlencode(escape_tags($m)));
-				$titleUri   = explode('|', $m);
-				$page       = $titleUri[0] ?? '';
-				$title      = $titleUri[1] ?? $page;
-				$pageURLs[] = NativeWiki::name_encode(escape_tags($page));
-				$pages[]    = $title;
-			}
-			$idx = 0;
-			while (strpos($s, '[[') !== false) {
-				$replace = '<a href="' . $wikiURL . '/' . $pageURLs[$idx] . '">' . $pages[$idx] . '</a>';
-				$s       = preg_replace("/\[\[(.*?)\]\]/", $replace, $s, 1);
-				$idx++;
-			}
-		}
-		return $s;
-	}
-
-	static public function render_page_history($arr) {
-
-		$pageUrlName = ((array_key_exists('pageUrlName', $arr)) ? $arr['pageUrlName'] : '');
-		$resource_id = ((array_key_exists('resource_id', $arr)) ? $arr['resource_id'] : '');
-
-		$pageHistory = self::page_history([
-			'channel_id'    => App::$profile_uid,
-			'observer_hash' => get_observer_hash(),
-			'resource_id'   => $resource_id,
-			'pageUrlName'   => $pageUrlName
-		]);
-
-		return replace_macros(get_markup_template('nwiki_page_history.tpl'), [
-			'$pageHistory' => $pageHistory['history'],
-			'$permsWrite'  => $arr['permsWrite'],
-			'$name_lbl'    => t('Name'),
-			'$msg_label'   => t('Message', 'wiki_history'),
-			'$date_lbl'    => t('Date'),
-			'$revert_btn'  => t('Revert'),
-			'$compare_btn' => t('Compare')
-		]);
-
-	}
-
-
-	/**
-	 * Replace the instances of the string [toc] with a list element that will be populated by
-	 * a table of contents by the JavaScript library
-	 * @param string $s
-	 * @return string
-	 */
-	static public function generate_toc($s) {
-		if (strpos($s, '[toc]') !== false) {
-			//$toc_md = wiki_toc($s);	// Generate Markdown-formatted list prior to HTML render
-			$toc_md = '<ul id="wiki-toc"></ul>'; // use the available jQuery plugin http://ndabas.github.io/toc/
-			$s      = preg_replace("/\[toc\]/", $toc_md, $s, -1);
-		}
-		return $s;
-	}
-
-
-	/**
-	 *  Converts a select set of bbcode tags. Much of the code is copied from include/bbcode.php
-	 * @param string $s
-	 * @return string
-	 */
-	static public function bbcode($s) {
-
-		$s = str_replace(['[baseurl]', '[sitename]'], [z_root(), get_config('system', 'sitename')], $s);
-
-		$s = preg_replace_callback("/\[observer\.language\=(.*?)\](.*?)\[\/observer\]/ism", 'oblanguage_callback', $s);
-
-		$s = preg_replace_callback("/\[observer\.language\!\=(.*?)\](.*?)\[\/observer\]/ism", 'oblanguage_necallback', $s);
-
-
-		$observer = App::get_observer();
-		if ($observer) {
-			$s1         = '<span class="bb_observer" title="' . t('Different viewers will see this text differently') . '">';
-			$s2         = '</span>';
-			$obsBaseURL = $observer['xchan_connurl'];
-			$obsBaseURL = preg_replace("/\/poco\/.*$/", '', $obsBaseURL);
-			$s          = str_replace('[observer.baseurl]', $obsBaseURL, $s);
-			$s          = str_replace('[observer.url]', $observer['xchan_url'], $s);
-			$s          = str_replace('[observer.name]', $s1 . $observer['xchan_name'] . $s2, $s);
-			$s          = str_replace('[observer.address]', $s1 . $observer['xchan_addr'] . $s2, $s);
-			$s          = str_replace('[observer.webname]', substr($observer['xchan_addr'], 0, strpos($observer['xchan_addr'], '@')), $s);
-			$s          = str_replace('[observer.photo]', '', $s);
-		}
-		else {
-			$s = str_replace('[observer.baseurl]', '', $s);
-			$s = str_replace('[observer.url]', '', $s);
-			$s = str_replace('[observer.name]', '', $s);
-			$s = str_replace('[observer.address]', '', $s);
-			$s = str_replace('[observer.webname]', '', $s);
-			$s = str_replace('[observer.photo]', '', $s);
-		}
-
-		return $s;
-	}
-
-
-	static public function get_file_ext($arr) {
-
-		if ($arr['mimetype'] === 'text/bbcode')
-			return '.bb';
-		elseif ($arr['mimetype'] === 'text/markdown')
-			return '.md';
-		elseif ($arr['mimetype'] === 'text/plain')
-			return '.txt';
-
-	}
-
-	// This function is derived from
-	// http://stackoverflow.com/questions/32068537/generate-table-of-contents-from-markdown-in-php
-	static public function toc($content) {
-		// ensure using only "\n" as line-break
-		$source = str_replace(["\r\n", "\r"], "\n", $content);
-
-		// look for markdown TOC items
-		preg_match_all(
-			'/^(?:=|-|#).*$/m',
-			$source,
-			$matches,
-			PREG_PATTERN_ORDER | PREG_OFFSET_CAPTURE
-		);
-
-		// preprocess: iterate matched lines to create an array of items
-		// where each item is an array(level, text)
-		$file_size = strlen($source);
-		foreach ($matches[0] as $item) {
-			$found_mark = substr($item[0], 0, 1);
-			if ($found_mark == '#') {
-				// text is the found item
-				$item_text  = $item[0];
-				$item_level = strrpos($item_text, '#') + 1;
-				$item_text  = substr($item_text, $item_level);
-			}
-			else {
-				// text is the previous line (empty if <hr>)
-				$item_offset      = $item[1];
-				$prev_line_offset = strrpos($source, "\n", -($file_size - $item_offset + 2));
-				$item_text        =
-					substr($source, $prev_line_offset, $item_offset - $prev_line_offset - 1);
-				$item_text        = trim($item_text);
-				$item_level       = $found_mark == '=' ? 1 : 2;
-			}
-			if (!trim($item_text) or strpos($item_text, '|') !== FALSE) {
-				// item is an horizontal separator or a table header, don't mind
-				continue;
-			}
-			$raw_toc[] = ['level' => $item_level, 'text' => trim($item_text)];
-		}
-		$o = '';
-		foreach ($raw_toc as $t) {
-			$level = intval($t['level']);
-			$text  = $t['text'];
-			switch ($level) {
-				case 1:
-					$li = '* ';
-					break;
-				case 2:
-					$li = '  * ';
-					break;
-				case 3:
-					$li = '    * ';
-					break;
-				case 4:
-					$li = '      * ';
-					break;
-				default:
-					$li = '* ';
-					break;
-			}
-			$o .= $li . $text . "\n";
-		}
-		return $o;
-	}
-
-}