more work on native wiki - revert now works; still remaining: diff, delete-page, rename-page and export wiki.

1 files changed, 199 insertions, 0 deletions

diff --git a/Zotlabs/Lib/NativeWiki.php b/Zotlabs/Lib/NativeWiki.php
new file mode 100644
index 000000000..87aba363c
--- /dev/null
+++ b/Zotlabs/Lib/NativeWiki.php
@@ -0,0 +1,199 @@
+<?php
+
+namespace Zotlabs\Lib;
+
+use \Zotlabs\Storage\GitRepo as GitRepo;
+
+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) {
+				$w['rawName']  = get_iconfig($w, 'wiki', 'rawName');
+				$w['htmlName'] = get_iconfig($w, 'wiki', 'htmlName');
+				$w['urlName']  = get_iconfig($w, 'wiki', 'urlName');
+				$w['mimeType'] = get_iconfig($w, 'wiki', 'mimeType');
+				$w['lock']     = (($w['item_private'] || $w['allow_cid'] || $w['allow_gid'] || $w['deny_cid'] || $w['deny_gid']) ? true : false);
+			}
+		}
+		// 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=' . $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 . ']' . $wiki['htmlName'] . '[/zrl][/td][/tr][/table]';
+
+		// Save the wiki name information using iconfig. This is shareable.
+		if(! set_iconfig($arr, 'wiki', 'rawName', $wiki['rawName'], true)) {
+			return array('item' => null, 'success' => false);
+		}
+		if(! set_iconfig($arr, 'wiki', 'htmlName', $wiki['htmlName'], true)) {
+			return array('item' => null, 'success' => false);
+		}
+		if(! set_iconfig($arr, 'wiki', 'urlName', $wiki['urlName'], true)) {
+			return array('item' => null, 'success' => false);
+		}
+		if(! set_iconfig($arr, 'wiki', 'mimeType', $wiki['mimeType'], true)) {
+			return array('item' => null, 'success' => false);
+		}
+	
+		$post = item_store($arr);
+		$item_id = $post['item_id'];
+
+		if($item_id) {
+			\Zotlabs\Daemon\Master::Summon(array('Notifier', 'activity', $item_id));
+			return array('item' => $post['item'], 'success' => true);
+		}
+		else {
+			return array('item' => null, 'success' => false);
+		}
+	}
+
+	function delete_wiki($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' => $item, 'success' => (($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');
+			$htmlName = get_iconfig($w, 'wiki', 'htmlName');
+			$urlName  = get_iconfig($w, 'wiki', 'urlName');
+			$mimeType = get_iconfig($w, 'wiki', 'mimeType');
+
+			return array(
+				'wiki' => $w,
+				'rawName' => $rawName,
+				'htmlName' => $htmlName,
+				'urlName' => $urlName,
+				'mimeType' => $mimeType
+			);
+		}
+	}
+
+
+	static public function exists_by_name($uid, $urlName) {
+
+		$sql_extra = item_permissions_sql($uid);		
+
+		$item = q("SELECT id, resource_id FROM item WHERE resource_type = '%s' AND title = '%s' AND uid = %d 
+			AND item_deleted = 0 $sql_extra limit 1", 
+			dbesc(NWIKI_ITEM_RESOURCE_TYPE), 
+			dbesc(escape_tags(urldecode($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_pages');
+			return array('read' => true, 'write' => $write, 'success' => true);
+		}
+	}
+}
\ No newline at end of file