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/**
* 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.cxf.javascript;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.URI;
import java.nio.charset.Charset;
import java.util.Collection;
import java.util.Map;
import javax.annotation.Resource;
import org.apache.cxf.Bus;
import org.apache.cxf.common.i18n.UncheckedException;
import org.apache.cxf.common.injection.NoJSR250Annotations;
import org.apache.cxf.common.util.UrlUtils;
import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.endpoint.Server;
import org.apache.cxf.endpoint.ServerRegistry;
import org.apache.cxf.javascript.service.ServiceJavascriptBuilder;
import org.apache.cxf.javascript.types.SchemaJavascriptBuilder;
import org.apache.cxf.service.model.EndpointInfo;
import org.apache.cxf.service.model.SchemaInfo;
import org.apache.cxf.service.model.ServiceInfo;
import org.apache.cxf.transport.DestinationWithEndpoint;
import org.apache.cxf.transports.http.QueryHandlerRegistry;
import org.apache.cxf.transports.http.StemMatchingQueryHandler;
@NoJSR250Annotations(unlessNull = "bus")
public class JavascriptQueryHandler implements StemMatchingQueryHandler {
private static final String JS_UTILS_PATH = "/org/apache/cxf/javascript/cxf-utils.js";
private static final Charset UTF8 = Charset.forName("utf-8");
private static final String NO_UTILS_QUERY_KEY = "nojsutils";
private static final String CODE_QUERY_KEY = "js";
private Bus bus;
public JavascriptQueryHandler(Bus b) {
setBus(b);
}
@Resource
public final void setBus(Bus b) {
if (bus != b) {
bus = b;
QueryHandlerRegistry reg = b.getExtension(QueryHandlerRegistry.class);
if (reg != null) {
reg.registerHandler(this);
}
}
}
public String getResponseContentType(String fullQueryString, String ctx) {
try {
URI uri = URI.create(fullQueryString);
Map map = UrlUtils.parseQueryString(uri.getQuery());
if (map.containsKey(CODE_QUERY_KEY)) {
return "application/javascript;charset=UTF-8";
}
} catch (IllegalArgumentException iae) {
//invalid URI string, ignore and continue
}
return null;
}
public boolean isRecognizedQuery(String baseUri, String ctx, EndpointInfo endpointInfo,
boolean contextMatchExact) {
if (baseUri == null) {
return false;
}
try {
URI uri = URI.create(baseUri);
Map map = UrlUtils.parseQueryString(uri.getQuery());
if (map.containsKey(CODE_QUERY_KEY)) {
return endpointInfo.getAddress().contains(UrlUtils.getStem(uri.getSchemeSpecificPart()));
}
} catch (IllegalArgumentException iae) {
//invalid URI string, ignore and continue
}
return false;
}
public static void writeUtilsToResponseStream(Class referenceClass, OutputStream outputStream) {
InputStream utils = referenceClass.getResourceAsStream(JS_UTILS_PATH);
if (utils == null) {
throw new RuntimeException("Unable to get stream for " + JS_UTILS_PATH);
}
// it's amazing that this still has to be coded up.
byte buffer[] = new byte[1024];
int count;
try {
while ((count = utils.read(buffer, 0, 1024)) > 0) {
outputStream.write(buffer, 0, count);
}
outputStream.flush();
} catch (IOException e) {
throw new RuntimeException("Failed to write javascript utils to HTTP response.", e);
}
}
private Endpoint findEndpoint(EndpointInfo endpointInfo) {
ServerRegistry serverRegistry = bus.getExtension(ServerRegistry.class);
for (Server server : serverRegistry.getServers()) {
// Hypothetically, not all destinations have an endpoint.
// There has to be a better way to do this.
if (server.getDestination() instanceof DestinationWithEndpoint
&&
endpointInfo.
equals(((DestinationWithEndpoint)server.getDestination()).getEndpointInfo())) {
return server.getEndpoint();
}
}
return null;
}
public void writeResponse(String fullQueryString, String ctx, EndpointInfo endpoint, OutputStream os) {
URI uri = URI.create(fullQueryString);
String query = uri.getQuery();
Map map = UrlUtils.parseQueryString(query);
OutputStreamWriter writer = new OutputStreamWriter(os, UTF8);
if (!map.containsKey(NO_UTILS_QUERY_KEY)) {
writeUtilsToResponseStream(JavascriptQueryHandler.class, os);
}
if (map.containsKey(CODE_QUERY_KEY)) {
ServiceInfo serviceInfo = endpoint.getService();
Collection schemata = serviceInfo.getSchemas();
Endpoint serverEndpoint = findEndpoint(endpoint);
// we need to move this to the bus.
BasicNameManager nameManager = BasicNameManager.newNameManager(serviceInfo, serverEndpoint);
NamespacePrefixAccumulator prefixManager = new NamespacePrefixAccumulator(serviceInfo
.getXmlSchemaCollection());
try {
for (SchemaInfo schema : schemata) {
SchemaJavascriptBuilder builder = new SchemaJavascriptBuilder(serviceInfo
.getXmlSchemaCollection(), prefixManager, nameManager);
String allThatJavascript = builder.generateCodeForSchema(schema.getSchema());
writer.append(allThatJavascript);
}
ServiceJavascriptBuilder serviceBuilder = new ServiceJavascriptBuilder(serviceInfo,
endpoint.getAddress(),
prefixManager,
nameManager);
serviceBuilder.walk();
String serviceJavascript = serviceBuilder.getCode();
writer.append(serviceJavascript);
writer.flush();
} catch (IOException e) {
throw new UncheckedException(e);
}
} else {
throw new RuntimeException("Invalid query " + fullQueryString);
}
}
public boolean isRecognizedQuery(String fullQueryString, String ctx, EndpointInfo endpoint) {
return isRecognizedQuery(fullQueryString, ctx, endpoint, false);
}
}
