| /** |
| * 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.camel.component.http; |
| |
| import java.net.URI; |
| import java.util.HashMap; |
| import java.util.LinkedHashSet; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.camel.Endpoint; |
| import org.apache.camel.ResolveEndpointFailedException; |
| import org.apache.camel.impl.HeaderFilterStrategyComponent; |
| import org.apache.camel.util.CastUtils; |
| import org.apache.camel.util.CollectionHelper; |
| import org.apache.camel.util.IntrospectionSupport; |
| import org.apache.camel.util.ObjectHelper; |
| import org.apache.camel.util.URISupport; |
| import org.apache.commons.httpclient.HttpConnectionManager; |
| import org.apache.commons.httpclient.MultiThreadedHttpConnectionManager; |
| import org.apache.commons.httpclient.params.HttpClientParams; |
| |
| /** |
| * Defines the <a href="http://camel.apache.org/http.html">HTTP |
| * Component</a> |
| * |
| * @version |
| */ |
| public class HttpComponent extends HeaderFilterStrategyComponent { |
| protected HttpClientConfigurer httpClientConfigurer; |
| protected HttpConnectionManager httpConnectionManager = new MultiThreadedHttpConnectionManager(); |
| protected HttpBinding httpBinding; |
| protected HttpConfiguration httpConfiguration; |
| |
| /** |
| * Connects the URL specified on the endpoint to the specified processor. |
| * |
| * @param consumer the consumer |
| * @throws Exception can be thrown |
| */ |
| public void connect(HttpConsumer consumer) throws Exception { |
| } |
| |
| /** |
| * Disconnects the URL specified on the endpoint from the specified processor. |
| * |
| * @param consumer the consumer |
| * @throws Exception can be thrown |
| */ |
| public void disconnect(HttpConsumer consumer) throws Exception { |
| } |
| |
| /** |
| * Creates the HttpClientConfigurer based on the given parameters |
| * |
| * @param parameters the map of parameters |
| * @return the configurer |
| */ |
| protected HttpClientConfigurer createHttpClientConfigurer(Map<String, Object> parameters, Set<AuthMethod> authMethods) { |
| // prefer to use endpoint configured over component configured |
| HttpClientConfigurer configurer = resolveAndRemoveReferenceParameter(parameters, "httpClientConfigurerRef", HttpClientConfigurer.class); |
| if (configurer == null) { |
| // try without ref |
| configurer = resolveAndRemoveReferenceParameter(parameters, "httpClientConfigurer", HttpClientConfigurer.class); |
| } |
| if (configurer == null) { |
| // fallback to component configured |
| configurer = getHttpClientConfigurer(); |
| } |
| |
| // authentication can be endpoint configured |
| String authUsername = getAndRemoveParameter(parameters, "authUsername", String.class); |
| AuthMethod authMethod = getAndRemoveParameter(parameters, "authMethod", AuthMethod.class); |
| // validate that if auth username is given then the auth method is also provided |
| if (authUsername != null && authMethod == null) { |
| throw new IllegalArgumentException("Option authMethod must be provided to use authentication"); |
| } |
| if (authMethod != null) { |
| String authPassword = getAndRemoveParameter(parameters, "authPassword", String.class); |
| String authDomain = getAndRemoveParameter(parameters, "authDomain", String.class); |
| String authHost = getAndRemoveParameter(parameters, "authHost", String.class); |
| configurer = configureAuth(configurer, authMethod, authUsername, authPassword, authDomain, authHost, authMethods); |
| } else if (httpConfiguration != null) { |
| // or fallback to use component configuration |
| configurer = configureAuth(configurer, httpConfiguration.getAuthMethod(), httpConfiguration.getAuthUsername(), |
| httpConfiguration.getAuthPassword(), httpConfiguration.getAuthDomain(), httpConfiguration.getAuthHost(), authMethods); |
| } |
| |
| // proxy authentication can be endpoint configured |
| String proxyAuthUsername = getAndRemoveParameter(parameters, "proxyAuthUsername", String.class); |
| AuthMethod proxyAuthMethod = getAndRemoveParameter(parameters, "proxyAuthMethod", AuthMethod.class); |
| // validate that if proxy auth username is given then the proxy auth method is also provided |
| if (proxyAuthUsername != null && proxyAuthMethod == null) { |
| throw new IllegalArgumentException("Option proxyAuthMethod must be provided to use proxy authentication"); |
| } |
| if (proxyAuthMethod != null) { |
| String proxyAuthPassword = getAndRemoveParameter(parameters, "proxyAuthPassword", String.class); |
| String proxyAuthDomain = getAndRemoveParameter(parameters, "proxyAuthDomain", String.class); |
| String proxyAuthHost = getAndRemoveParameter(parameters, "proxyAuthHost", String.class); |
| configurer = configureProxyAuth(configurer, proxyAuthMethod, proxyAuthUsername, proxyAuthPassword, proxyAuthDomain, proxyAuthHost, authMethods); |
| } else if (httpConfiguration != null) { |
| // or fallback to use component configuration |
| configurer = configureProxyAuth(configurer, httpConfiguration.getProxyAuthMethod(), httpConfiguration.getProxyAuthUsername(), |
| httpConfiguration.getProxyAuthPassword(), httpConfiguration.getProxyAuthDomain(), httpConfiguration.getProxyAuthHost(), authMethods); |
| } |
| |
| return configurer; |
| } |
| |
| /** |
| * Configures the authentication method to be used |
| * |
| * @return configurer to used |
| */ |
| protected HttpClientConfigurer configureAuth(HttpClientConfigurer configurer, AuthMethod authMethod, String username, |
| String password, String domain, String host, Set<AuthMethod> authMethods) { |
| |
| // no auth is in use |
| if (username == null && authMethod == null) { |
| return configurer; |
| } |
| |
| // validate mandatory options given |
| if (username != null && authMethod == null) { |
| throw new IllegalArgumentException("Option authMethod must be provided to use authentication"); |
| } |
| ObjectHelper.notNull(authMethod, "authMethod"); |
| ObjectHelper.notNull(username, "authUsername"); |
| ObjectHelper.notNull(password, "authPassword"); |
| |
| // add it as a auth method used |
| authMethods.add(authMethod); |
| |
| if (authMethod == AuthMethod.Basic || authMethod == AuthMethod.Digest) { |
| return CompositeHttpConfigurer.combineConfigurers(configurer, |
| new BasicAuthenticationHttpClientConfigurer(false, username, password)); |
| } else if (authMethod == AuthMethod.NTLM) { |
| // domain is mandatory for NTLM |
| ObjectHelper.notNull(domain, "authDomain"); |
| return CompositeHttpConfigurer.combineConfigurers(configurer, |
| new NTLMAuthenticationHttpClientConfigurer(false, username, password, domain, host)); |
| } |
| |
| throw new IllegalArgumentException("Unknown authMethod " + authMethod); |
| } |
| |
| /** |
| * Configures the proxy authentication method to be used |
| * |
| * @return configurer to used |
| */ |
| protected HttpClientConfigurer configureProxyAuth(HttpClientConfigurer configurer, AuthMethod authMethod, String username, |
| String password, String domain, String host, Set<AuthMethod> authMethods) { |
| // no proxy auth is in use |
| if (username == null && authMethod == null) { |
| return configurer; |
| } |
| |
| // validate mandatory options given |
| if (username != null && authMethod == null) { |
| throw new IllegalArgumentException("Option proxyAuthMethod must be provided to use proxy authentication"); |
| } |
| ObjectHelper.notNull(authMethod, "proxyAuthMethod"); |
| ObjectHelper.notNull(username, "proxyAuthUsername"); |
| ObjectHelper.notNull(password, "proxyAuthPassword"); |
| |
| // add it as a auth method used |
| authMethods.add(authMethod); |
| |
| if (authMethod == AuthMethod.Basic || authMethod == AuthMethod.Digest) { |
| return CompositeHttpConfigurer.combineConfigurers(configurer, |
| new BasicAuthenticationHttpClientConfigurer(true, username, password)); |
| } else if (authMethod == AuthMethod.NTLM) { |
| // domain is mandatory for NTML |
| ObjectHelper.notNull(domain, "proxyAuthDomain"); |
| return CompositeHttpConfigurer.combineConfigurers(configurer, |
| new NTLMAuthenticationHttpClientConfigurer(true, username, password, domain, host)); |
| } |
| |
| throw new IllegalArgumentException("Unknown proxyAuthMethod " + authMethod); |
| } |
| |
| @Override |
| protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception { |
| String addressUri = uri; |
| if (!uri.startsWith("http:") && !uri.startsWith("https:")) { |
| addressUri = remaining; |
| } |
| Map<String, Object> httpClientParameters = new HashMap<String, Object>(parameters); |
| // must extract well known parameters before we create the endpoint |
| HttpBinding binding = resolveAndRemoveReferenceParameter(parameters, "httpBindingRef", HttpBinding.class); |
| if (binding == null) { |
| // try without ref |
| binding = resolveAndRemoveReferenceParameter(parameters, "httpBinding", HttpBinding.class); |
| } |
| Boolean throwExceptionOnFailure = getAndRemoveParameter(parameters, "throwExceptionOnFailure", Boolean.class); |
| Boolean transferException = getAndRemoveParameter(parameters, "transferException", Boolean.class); |
| Boolean bridgeEndpoint = getAndRemoveParameter(parameters, "bridgeEndpoint", Boolean.class); |
| Boolean matchOnUriPrefix = getAndRemoveParameter(parameters, "matchOnUriPrefix", Boolean.class); |
| Boolean disableStreamCache = getAndRemoveParameter(parameters, "disableStreamCache", Boolean.class); |
| String proxyHost = getAndRemoveParameter(parameters, "proxyHost", String.class); |
| Integer proxyPort = getAndRemoveParameter(parameters, "proxyPort", Integer.class); |
| String authMethodPriority = getAndRemoveParameter(parameters, "authMethodPriority", String.class); |
| // http client can be configured from URI options |
| HttpClientParams clientParams = new HttpClientParams(); |
| IntrospectionSupport.setProperties(clientParams, parameters, "httpClient."); |
| // validate that we could resolve all httpClient. parameters as this component is lenient |
| validateParameters(uri, parameters, "httpClient."); |
| |
| // create the configurer to use for this endpoint (authMethods contains the used methods created by the configurer) |
| final Set<AuthMethod> authMethods = new LinkedHashSet<AuthMethod>(); |
| HttpClientConfigurer configurer = createHttpClientConfigurer(parameters, authMethods); |
| URI endpointUri = URISupport.createRemainingURI(new URI(addressUri), CastUtils.cast(httpClientParameters)); |
| // restructure uri to be based on the parameters left as we dont want to include the Camel internal options |
| URI httpUri = URISupport.createRemainingURI(new URI(addressUri), CastUtils.cast(parameters)); |
| |
| // validate http uri that end-user did not duplicate the http part that can be a common error |
| String part = httpUri.getSchemeSpecificPart(); |
| if (part != null) { |
| part = part.toLowerCase(); |
| if (part.startsWith("//http//") || part.startsWith("//https//") || part.startsWith("//http://") || part.startsWith("//https://")) { |
| throw new ResolveEndpointFailedException(uri, |
| "The uri part is not configured correctly. You have duplicated the http(s) protocol."); |
| } |
| } |
| // need to keep the parameters of http client configure to avoid unwiser endpoint caching |
| |
| // create the endpoint |
| HttpEndpoint endpoint = new HttpEndpoint(endpointUri.toString(), this, httpUri, clientParams, httpConnectionManager, configurer); |
| setEndpointHeaderFilterStrategy(endpoint); |
| |
| // prefer to use endpoint configured over component configured |
| if (binding == null) { |
| // fallback to component configured |
| binding = getHttpBinding(); |
| } |
| if (binding != null) { |
| endpoint.setBinding(binding); |
| } |
| // should we use an exception for failed error codes? |
| if (throwExceptionOnFailure != null) { |
| endpoint.setThrowExceptionOnFailure(throwExceptionOnFailure); |
| } |
| // should we transfer exception as serialized object |
| if (transferException != null) { |
| endpoint.setTransferException(transferException); |
| } |
| if (bridgeEndpoint != null) { |
| endpoint.setBridgeEndpoint(bridgeEndpoint); |
| } |
| if (matchOnUriPrefix != null) { |
| endpoint.setMatchOnUriPrefix(matchOnUriPrefix); |
| } |
| if (disableStreamCache != null) { |
| endpoint.setDisableStreamCache(disableStreamCache); |
| } |
| if (proxyHost != null) { |
| endpoint.setProxyHost(proxyHost); |
| endpoint.setProxyPort(proxyPort); |
| } else if (httpConfiguration != null) { |
| endpoint.setProxyHost(httpConfiguration.getProxyHost()); |
| endpoint.setProxyPort(httpConfiguration.getProxyPort()); |
| } |
| if (authMethodPriority != null) { |
| endpoint.setAuthMethodPriority(authMethodPriority); |
| } else if (httpConfiguration != null && httpConfiguration.getAuthMethodPriority() != null) { |
| endpoint.setAuthMethodPriority(httpConfiguration.getAuthMethodPriority()); |
| } else { |
| // no explicit auth method priority configured, so use convention over configuration |
| // and set priority based on auth method |
| if (!authMethods.isEmpty()) { |
| authMethodPriority = CollectionHelper.collectionAsCommaDelimitedString(authMethods); |
| endpoint.setAuthMethodPriority(authMethodPriority); |
| } |
| } |
| |
| setProperties(endpoint, parameters); |
| return endpoint; |
| } |
| |
| @Override |
| protected boolean useIntrospectionOnEndpoint() { |
| return false; |
| } |
| |
| public HttpClientConfigurer getHttpClientConfigurer() { |
| return httpClientConfigurer; |
| } |
| |
| public void setHttpClientConfigurer(HttpClientConfigurer httpClientConfigurer) { |
| this.httpClientConfigurer = httpClientConfigurer; |
| } |
| |
| public HttpConnectionManager getHttpConnectionManager() { |
| return httpConnectionManager; |
| } |
| |
| public void setHttpConnectionManager(HttpConnectionManager httpConnectionManager) { |
| this.httpConnectionManager = httpConnectionManager; |
| } |
| |
| public HttpBinding getHttpBinding() { |
| return httpBinding; |
| } |
| |
| public void setHttpBinding(HttpBinding httpBinding) { |
| this.httpBinding = httpBinding; |
| } |
| |
| public HttpConfiguration getHttpConfiguration() { |
| return httpConfiguration; |
| } |
| |
| public void setHttpConfiguration(HttpConfiguration httpConfiguration) { |
| this.httpConfiguration = httpConfiguration; |
| } |
| |
| } |