| /* |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| */ |
| package org.apache.wiki.xmlrpc; |
| |
| import org.apache.wiki.LinkCollector; |
| import org.apache.wiki.WikiContext; |
| import org.apache.wiki.api.core.Attachment; |
| import org.apache.wiki.api.core.Context; |
| import org.apache.wiki.api.core.Page; |
| import org.apache.wiki.api.spi.Wiki; |
| import org.apache.wiki.auth.permissions.PagePermission; |
| import org.apache.wiki.auth.permissions.PermissionFactory; |
| import org.apache.wiki.pages.PageManager; |
| import org.apache.wiki.render.RenderingManager; |
| import org.apache.wiki.util.TextUtil; |
| import org.apache.xmlrpc.XmlRpcException; |
| |
| import java.nio.charset.StandardCharsets; |
| import java.util.Calendar; |
| import java.util.Collection; |
| import java.util.Date; |
| import java.util.Hashtable; |
| import java.util.Set; |
| import java.util.Vector; |
| |
| /** |
| * Provides handlers for all RPC routines. |
| * |
| * @since 1.6.6 |
| */ |
| // We could use Engine directly, but because of introspection it would show just too many methods to be safe. |
| public class RPCHandler extends AbstractRPCHandler { |
| |
| /** |
| * Converts Java string into RPC string. |
| */ |
| private String toRPCString( final String src ) |
| { |
| return TextUtil.urlEncodeUTF8( src ); |
| } |
| |
| /** |
| * Converts RPC string (UTF-8, url encoded) into Java string. |
| */ |
| private String fromRPCString( final String src ) |
| { |
| return TextUtil.urlDecodeUTF8( src ); |
| } |
| |
| /** |
| * Transforms a Java string into UTF-8. |
| */ |
| private byte[] toRPCBase64( final String src ) |
| { |
| return src.getBytes( StandardCharsets.UTF_8 ); |
| } |
| |
| public String getApplicationName() { |
| checkPermission( PagePermission.VIEW ); |
| return toRPCString(m_engine.getApplicationName()); |
| } |
| |
| public Vector< String > getAllPages() { |
| checkPermission( PagePermission.VIEW ); |
| final Collection< Page > pages = m_engine.getManager( PageManager.class ).getRecentChanges(); |
| final Vector< String > result = new Vector<>(); |
| |
| for( final Page p : pages ) { |
| if( !( p instanceof Attachment ) ) { |
| result.add( toRPCString( p.getName() ) ); |
| } |
| } |
| |
| return result; |
| } |
| |
| /** |
| * Encodes a single wiki page info into a Hashtable. |
| */ |
| @Override |
| protected Hashtable<String,Object> encodeWikiPage( final Page page ) { |
| final Hashtable<String, Object> ht = new Hashtable<>(); |
| ht.put( "name", toRPCString(page.getName()) ); |
| |
| final Date d = page.getLastModified(); |
| |
| // |
| // Here we reset the DST and TIMEZONE offsets of the |
| // calendar. Unfortunately, I haven't thought of a better |
| // way to ensure that we're getting the proper date |
| // from the XML-RPC thingy, except to manually adjust the date. |
| // |
| |
| final Calendar cal = Calendar.getInstance(); |
| cal.setTime( d ); |
| cal.add( Calendar.MILLISECOND, |
| - (cal.get( Calendar.ZONE_OFFSET ) + |
| (cal.getTimeZone().inDaylightTime( d ) ? cal.get( Calendar.DST_OFFSET ) : 0 ) ) ); |
| |
| ht.put( "lastModified", cal.getTime() ); |
| ht.put( "version", page.getVersion() ); |
| |
| if( page.getAuthor() != null ) { |
| ht.put( "author", toRPCString( page.getAuthor() ) ); |
| } |
| |
| return ht; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public Vector< Hashtable< String, Object > > getRecentChanges( Date since ) { |
| checkPermission( PagePermission.VIEW ); |
| final Set< Page > pages = m_engine.getManager( PageManager.class ).getRecentChanges(); |
| final Vector< Hashtable< String, Object > > result = new Vector<>(); |
| |
| final Calendar cal = Calendar.getInstance(); |
| cal.setTime( since ); |
| |
| // |
| // Convert UTC to our time. |
| // |
| cal.add( Calendar.MILLISECOND, |
| (cal.get( Calendar.ZONE_OFFSET ) + |
| (cal.getTimeZone().inDaylightTime(since) ? cal.get( Calendar.DST_OFFSET ) : 0 ) ) ); |
| since = cal.getTime(); |
| |
| for( final Page page : pages ) { |
| if( page.getLastModified().after( since ) && !(page instanceof Attachment) ) { |
| result.add( encodeWikiPage( page ) ); |
| } |
| } |
| |
| return result; |
| } |
| |
| /** |
| * Simple helper method, turns the incoming page name into |
| * normal Java string, then checks page condition. |
| * |
| * @param pagename Page Name as an RPC string (URL-encoded UTF-8) |
| * @return Real page name, as Java string. |
| * @throws XmlRpcException, if there is something wrong with the page. |
| */ |
| private String parsePageCheckCondition( String pagename ) throws XmlRpcException { |
| pagename = fromRPCString( pagename ); |
| |
| if( !m_engine.getManager( PageManager.class ).wikiPageExists(pagename) ) { |
| throw new XmlRpcException( ERR_NOPAGE, "No such page '"+pagename+"' found, o master." ); |
| } |
| |
| final Page p = m_engine.getManager( PageManager.class ).getPage( pagename ); |
| |
| checkPermission( PermissionFactory.getPagePermission( p, PagePermission.VIEW_ACTION ) ); |
| |
| return pagename; |
| } |
| |
| public Hashtable getPageInfo( String pagename ) throws XmlRpcException { |
| pagename = parsePageCheckCondition( pagename ); |
| return encodeWikiPage( m_engine.getManager( PageManager.class ).getPage(pagename) ); |
| } |
| |
| public Hashtable getPageInfoVersion( String pagename, final int version ) throws XmlRpcException { |
| pagename = parsePageCheckCondition( pagename ); |
| |
| return encodeWikiPage( m_engine.getManager( PageManager.class ).getPage( pagename, version ) ); |
| } |
| |
| public byte[] getPage( final String pagename ) throws XmlRpcException { |
| final String text = m_engine.getManager( PageManager.class ).getPureText( parsePageCheckCondition( pagename ), -1 ); |
| return toRPCBase64( text ); |
| } |
| |
| public byte[] getPageVersion( String pagename, final int version ) throws XmlRpcException { |
| pagename = parsePageCheckCondition( pagename ); |
| |
| return toRPCBase64( m_engine.getManager( PageManager.class ).getPureText( pagename, version ) ); |
| } |
| |
| public byte[] getPageHTML( String pagename ) throws XmlRpcException { |
| pagename = parsePageCheckCondition( pagename ); |
| |
| return toRPCBase64( m_engine.getManager( RenderingManager.class ).getHTML( pagename ) ); |
| } |
| |
| public byte[] getPageHTMLVersion( String pagename, final int version ) throws XmlRpcException { |
| pagename = parsePageCheckCondition( pagename ); |
| |
| return toRPCBase64( m_engine.getManager( RenderingManager.class ).getHTML( pagename, version ) ); |
| } |
| |
| public Vector< Hashtable< String, String > > listLinks( String pagename ) throws XmlRpcException { |
| pagename = parsePageCheckCondition( pagename ); |
| |
| final Page page = m_engine.getManager( PageManager.class ).getPage( pagename ); |
| final String pagedata = m_engine.getManager( PageManager.class ).getPureText( page ); |
| |
| final LinkCollector localCollector = new LinkCollector(); |
| final LinkCollector extCollector = new LinkCollector(); |
| final LinkCollector attCollector = new LinkCollector(); |
| |
| final Context context = Wiki.context().create( m_engine, page ); |
| m_engine.getManager( RenderingManager.class ).textToHTML( context, pagedata, localCollector, extCollector, attCollector ); |
| |
| final Vector< Hashtable< String, String > > result = new Vector<>(); |
| |
| // |
| // Add local links. |
| // |
| for( final String link : localCollector.getLinks() ) { |
| final Hashtable< String, String > ht = new Hashtable<>(); |
| ht.put( "page", toRPCString( link ) ); |
| ht.put( "type", LINK_LOCAL ); |
| |
| // |
| // FIXME: This is a kludge. The link format should really be queried |
| // from the TranslatorReader itself. Also, the link format should probably |
| // have information on whether the page exists or not. |
| // |
| |
| // |
| // FIXME: The current link collector interface is not very good, since it causes this. |
| // |
| |
| if( m_engine.getManager( PageManager.class ).wikiPageExists( link ) ) { |
| ht.put( "href", context.getURL( WikiContext.VIEW, link ) ); |
| } else { |
| ht.put( "href", context.getURL( WikiContext.EDIT, link ) ); |
| } |
| |
| result.add( ht ); |
| } |
| |
| // |
| // Add links to inline attachments |
| // |
| for( final String link : attCollector.getLinks() ) { |
| final Hashtable<String, String> ht = new Hashtable<>(); |
| ht.put( "page", toRPCString( link ) ); |
| ht.put( "type", LINK_LOCAL ); |
| ht.put( "href", context.getURL( WikiContext.ATTACH, link ) ); |
| result.add( ht ); |
| } |
| |
| // |
| // External links don't need to be changed into XML-RPC strings, simply because URLs are by definition ASCII. |
| // |
| for( final String link : extCollector.getLinks() ) { |
| final Hashtable<String, String> ht = new Hashtable<>(); |
| ht.put( "page", link ); |
| ht.put( "type", LINK_EXTERNAL ); |
| ht.put( "href", link ); |
| result.add( ht ); |
| } |
| |
| return result; |
| } |
| |
| } |