/*

 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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package com.sun.xml.internal.ws.transport.http.server;

import com.sun.istack.internal.NotNull;

import com.sun.xml.internal.ws.api.message.Packet;

import com.sun.xml.internal.ws.api.server.WSEndpoint;

import com.sun.xml.internal.ws.api.server.WebServiceContextDelegate;

import com.sun.xml.internal.ws.api.server.PortAddressResolver;

import com.sun.xml.internal.ws.transport.http.HttpAdapter;

import com.sun.xml.internal.ws.transport.http.WSHTTPConnection;

import com.sun.xml.internal.ws.developer.JAXWSProperties;

import com.sun.xml.internal.ws.resources.WsservletMessages;

import javax.xml.ws.handler.MessageContext;

import javax.xml.ws.WebServiceException;

import javax.xml.ws.spi.http.HttpExchange;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.security.Principal;

import java.util.ArrayList;

import java.util.List;

import java.util.Map;

import java.util.Set;

/**

 * {@link WSHTTPConnection} used with Java SE endpoints. It provides connection

 * implementation using {@link HttpExchange} object.

 *

 * @author Jitendra Kotamraju

 */

final class PortableConnectionImpl extends WSHTTPConnection implements WebServiceContextDelegate {

    private final HttpExchange httpExchange;

    private int status;

    private final HttpAdapter adapter;

    private boolean outputWritten;

    public PortableConnectionImpl(@NotNull HttpAdapter adapter, @NotNull HttpExchange httpExchange) {

        this.adapter = adapter;

        this.httpExchange = httpExchange;

    }

    @Override

    @Property(value = {MessageContext.HTTP_REQUEST_HEADERS, Packet.INBOUND_TRANSPORT_HEADERS})

    public @NotNull Map<String,List<String>> getRequestHeaders() {

        return httpExchange.getRequestHeaders();

    }

    @Override

    public String getRequestHeader(String headerName) {

        return httpExchange.getRequestHeader(headerName);

    }

    @Override

    public void setResponseHeaders(Map<String,List<String>> headers) {

        Map<String, List<String>> r = httpExchange.getResponseHeaders();

        r.clear();

        for(Map.Entry <String, List<String>> entry : headers.entrySet()) {

            String name = entry.getKey();

            List<String> values = entry.getValue();

            // ignore headers that interfere with our correct operations

            if (!name.equalsIgnoreCase("Content-Length") && !name.equalsIgnoreCase("Content-Type")) {

                r.put(name,new ArrayList<String>(values));

            }

        }

    }

    @Override

    public void setResponseHeader(String key, List<String> value) {

        httpExchange.getResponseHeaders().put(key, value);

    }

    @Override

    public Set<String> getRequestHeaderNames() {

        return httpExchange.getRequestHeaders().keySet();

    }

    @Override

    public List<String> getRequestHeaderValues(String headerName) {

        return httpExchange.getRequestHeaders().get(headerName);

    }

    @Override

    @Property({MessageContext.HTTP_RESPONSE_HEADERS,Packet.OUTBOUND_TRANSPORT_HEADERS})

    public Map<String,List<String>> getResponseHeaders() {

        return httpExchange.getResponseHeaders();

    }

    @Override

    public void setContentTypeResponseHeader(@NotNull String value) {

        httpExchange.addResponseHeader("Content-Type", value);

    }

    @Override

    public void setStatus(int status) {

        this.status = status;

    }

    @Override

    @Property(MessageContext.HTTP_RESPONSE_CODE)

    public int getStatus() {

        return status;

    }

    public @Override @NotNull InputStream getInput() throws IOException {

        return httpExchange.getRequestBody();

    }

    public @Override @NotNull OutputStream getOutput() throws IOException {

        assert !outputWritten;

        outputWritten = true;

        httpExchange.setStatus(getStatus());

        return httpExchange.getResponseBody();

    }

    public @Override @NotNull WebServiceContextDelegate getWebServiceContextDelegate() {

        return this;

    }

    @Override

    public Principal getUserPrincipal(Packet request) {

        return httpExchange.getUserPrincipal();

    }

    @Override

    public boolean isUserInRole(Packet request, String role) {

        return httpExchange.isUserInRole(role);

    }

    public @Override @NotNull String getEPRAddress(Packet request, WSEndpoint endpoint) {

        PortAddressResolver resolver = adapter.owner.createPortAddressResolver(getBaseAddress(), endpoint.getImplementationClass());

        String address = resolver.getAddressFor(endpoint.getServiceName(), endpoint.getPortName().getLocalPart());

        if(address==null) {

            throw new WebServiceException(WsservletMessages.SERVLET_NO_ADDRESS_AVAILABLE(endpoint.getPortName()));

        }

        return address;

    }

    @Property(MessageContext.SERVLET_CONTEXT)

    public Object getServletContext() {

        return httpExchange.getAttribute(MessageContext.SERVLET_CONTEXT);

    }

    @Property(MessageContext.SERVLET_RESPONSE)

    public Object getServletResponse() {

        return httpExchange.getAttribute(MessageContext.SERVLET_RESPONSE);

    }

    @Property(MessageContext.SERVLET_REQUEST)

    public Object getServletRequest() {

        return httpExchange.getAttribute(MessageContext.SERVLET_REQUEST);

    }

    @Override

    public String getWSDLAddress(@NotNull Packet request, @NotNull WSEndpoint endpoint) {

        String eprAddress = getEPRAddress(request,endpoint);

        if(adapter.getEndpoint().getPort() != null) {

            return eprAddress+"?wsdl";

        } else {

            return null;

        }

    }

    @Override

    public boolean isSecure() {

        return httpExchange.getScheme().equals("https");

    }

    @Override

    @Property(MessageContext.HTTP_REQUEST_METHOD)

    public @NotNull String getRequestMethod() {

        return httpExchange.getRequestMethod();

    }

    @Override

    @Property(MessageContext.QUERY_STRING)

    public String getQueryString() {

        return httpExchange.getQueryString();

    }

    @Override

    @Property(MessageContext.PATH_INFO)

    public String getPathInfo() {

        return httpExchange.getPathInfo();

    }

    @Property(JAXWSProperties.HTTP_EXCHANGE)

    public HttpExchange getExchange() {

        return httpExchange;

    }

    @Override @NotNull

    public String getBaseAddress() {

        StringBuilder sb = new StringBuilder();

        sb.append(httpExchange.getScheme());

        sb.append("://");

        sb.append(httpExchange.getLocalAddress().getHostName());

        sb.append(":");

        sb.append(httpExchange.getLocalAddress().getPort());

        sb.append(httpExchange.getContextPath());

        return sb.toString();

    }

    @Override

    public String getProtocol() {

        return httpExchange.getProtocol();

    }

    @Override

    public void setContentLengthResponseHeader(int value) {

        httpExchange.addResponseHeader("Content-Length", ""+value);

    }

    @Override

    public String getRequestURI() {

        return httpExchange.getRequestURI().toString();

    }

    @Override

    public String getRequestScheme() {

        return httpExchange.getScheme();

    }

    @Override

    public String getServerName() {

        return httpExchange.getLocalAddress().getHostName();

    }

    @Override

    public int getServerPort() {

        return httpExchange.getLocalAddress().getPort();

    }

    @Override

    protected PropertyMap getPropertyMap() {

        return model;

    }

    private static final PropertyMap model;

    static {

        model = parse(PortableConnectionImpl.class);

    }

}