/*

 * Copyright (c) 2001, 2019, 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

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package sun.net.www.protocol.https;

import java.net.URL;

import java.net.Proxy;

import java.net.ProtocolException;

import java.net.MalformedURLException;

import java.io.*;

import java.net.Authenticator;

import javax.net.ssl.*;

import java.security.Permission;

import java.security.Principal;

import java.util.Map;

import java.util.List;

import java.util.Optional;

import sun.net.util.IPAddressUtil;

import sun.net.www.http.HttpClient;

/**

 * A class to represent an HTTP connection to a remote object.

 *

 * Ideally, this class should subclass and inherit the http handler

 * implementation, but it can't do so because that class have the

 * wrong Java Type.  Thus it uses the delegate (aka, the

 * Adapter/Wrapper design pattern) to reuse code from the http

 * handler.

 *

 * Since it would use a delegate to access

 * sun.net.www.protocol.http.HttpURLConnection functionalities, it

 * needs to implement all public methods in it's super class and all

 * the way to Object.

 *

 */

public class HttpsURLConnectionImpl

        extends javax.net.ssl.HttpsURLConnection {

    private final DelegateHttpsURLConnection delegate;

    HttpsURLConnectionImpl(URL u, Handler handler) throws IOException {

        this(u, null, handler);

    }

    static URL checkURL(URL u) throws IOException {

        if (u != null) {

            if (u.toExternalForm().indexOf('\n') > -1) {

                throw new MalformedURLException("Illegal character in URL");

            }

        }

        String s = IPAddressUtil.checkAuthority(u);

        if (s != null) {

            throw new MalformedURLException(s);

        }

        return u;

    }

    HttpsURLConnectionImpl(URL u, Proxy p, Handler handler) throws IOException {

        super(checkURL(u));

        delegate = new DelegateHttpsURLConnection(url, p, handler, this);

    }

    /**

     * Create a new HttpClient object, bypassing the cache of

     * HTTP client objects/connections.

     *

     * @param url       the URL being accessed

     */

    protected void setNewClient(URL url) throws IOException {

        delegate.setNewClient(url, false);

    }

    /**

     * Obtain a HttpClient object. Use the cached copy if specified.

     *

     * @param url       the URL being accessed

     * @param useCache  whether the cached connection should be used

     *                  if present

     */

    protected void setNewClient(URL url, boolean useCache)

            throws IOException {

        delegate.setNewClient(url, useCache);

    }

    /**

     * Create a new HttpClient object, set up so that it uses

     * per-instance proxying to the given HTTP proxy.  This

     * bypasses the cache of HTTP client objects/connections.

     *

     * @param url       the URL being accessed

     * @param proxyHost the proxy host to use

     * @param proxyPort the proxy port to use

     */

    protected void setProxiedClient(URL url, String proxyHost, int proxyPort)

            throws IOException {

        delegate.setProxiedClient(url, proxyHost, proxyPort);

    }

    /**

     * Obtain a HttpClient object, set up so that it uses per-instance

     * proxying to the given HTTP proxy. Use the cached copy of HTTP

     * client objects/connections if specified.

     *

     * @param url       the URL being accessed

     * @param proxyHost the proxy host to use

     * @param proxyPort the proxy port to use

     * @param useCache  whether the cached connection should be used

     *                  if present

     */

    protected void setProxiedClient(URL url, String proxyHost, int proxyPort,

            boolean useCache) throws IOException {

        delegate.setProxiedClient(url, proxyHost, proxyPort, useCache);

    }

    /**

     * Implements the HTTP protocol handler's "connect" method,

     * establishing an SSL connection to the server as necessary.

     */

    public void connect() throws IOException {

        delegate.connect();

    }

    /**

     * Used by subclass to access "connected" variable.  Since we are

     * delegating the actual implementation to "delegate", we need to

     * delegate the access of "connected" as well.

     */

    protected boolean isConnected() {

        return delegate.isConnected();

    }

    /**

     * Used by subclass to access "connected" variable.  Since we are

     * delegating the actual implementation to "delegate", we need to

     * delegate the access of "connected" as well.

     */

    protected void setConnected(boolean conn) {

        delegate.setConnected(conn);

    }

    /**

     * Returns the cipher suite in use on this connection.

     */

    public String getCipherSuite() {

        return delegate.getCipherSuite();

    }

    /**

     * Returns the certificate chain the client sent to the

     * server, or null if the client did not authenticate.

     */

    public java.security.cert.Certificate []

        getLocalCertificates() {

        return delegate.getLocalCertificates();

    }

    /**

     * Returns the server's certificate chain, or throws

     * SSLPeerUnverified Exception if

     * the server did not authenticate.

     */

    public java.security.cert.Certificate []

        getServerCertificates() throws SSLPeerUnverifiedException {

        return delegate.getServerCertificates();

    }

    /**

     * Returns the principal with which the server authenticated itself,

     * or throw a SSLPeerUnverifiedException if the server did not authenticate.

     */

    public Principal getPeerPrincipal()

            throws SSLPeerUnverifiedException

    {

        return delegate.getPeerPrincipal();

    }

    /**

     * Returns the principal the client sent to the

     * server, or null if the client did not authenticate.

     */

    public Principal getLocalPrincipal()

    {

        return delegate.getLocalPrincipal();

    }

    /*

     * Allowable input/output sequences:

     * [interpreted as POST/PUT]

     * - get output, [write output,] get input, [read input]

     * - get output, [write output]

     * [interpreted as GET]

     * - get input, [read input]

     * Disallowed:

     * - get input, [read input,] get output, [write output]

     */

    public OutputStream getOutputStream() throws IOException {

        return delegate.getOutputStream();

    }

    public InputStream getInputStream() throws IOException {

        return delegate.getInputStream();

    }

    public InputStream getErrorStream() {

        return delegate.getErrorStream();

    }

    /**

     * Disconnect from the server.

     */

    public void disconnect() {

        delegate.disconnect();

    }

    public boolean usingProxy() {

        return delegate.usingProxy();

    }

    /**

     * Returns an unmodifiable Map of the header fields.

     * The Map keys are Strings that represent the

     * response-header field names. Each Map value is an

     * unmodifiable List of Strings that represents

     * the corresponding field values.

     *

     * @return a Map of header fields

     * @since 1.4

     */

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

        return delegate.getHeaderFields();

    }

    /**

     * Gets a header field by name. Returns null if not known.

     * @param name the name of the header field

     */

    public String getHeaderField(String name) {

        return delegate.getHeaderField(name);

    }

    /**

     * Gets a header field by index. Returns null if not known.

     * @param n the index of the header field

     */

    public String getHeaderField(int n) {

        return delegate.getHeaderField(n);

    }

    /**

     * Gets a header field by index. Returns null if not known.

     * @param n the index of the header field

     */

    public String getHeaderFieldKey(int n) {

        return delegate.getHeaderFieldKey(n);

    }

    /**

     * Sets request property. If a property with the key already

     * exists, overwrite its value with the new value.

     * @param value the value to be set

     */

    public void setRequestProperty(String key, String value) {

        delegate.setRequestProperty(key, value);

    }

    /**

     * Adds a general request property specified by a

     * key-value pair.  This method will not overwrite

     * existing values associated with the same key.

     *

     * @param   key     the keyword by which the request is known

     *                  (e.g., "<code>accept</code>").

     * @param   value  the value associated with it.

     * @see #getRequestProperty(java.lang.String)

     * @since 1.4

     */

    public void addRequestProperty(String key, String value) {

        delegate.addRequestProperty(key, value);

    }

    /**

     * Overwrite super class method

     */

    public int getResponseCode() throws IOException {

        return delegate.getResponseCode();

    }

    public String getRequestProperty(String key) {

        return delegate.getRequestProperty(key);

    }

    /**

     * Returns an unmodifiable Map of general request

     * properties for this connection. The Map keys

     * are Strings that represent the request-header

     * field names. Each Map value is a unmodifiable List

     * of Strings that represents the corresponding

     * field values.

     *

     * @return  a Map of the general request properties for this connection.

     * @throws IllegalStateException if already connected

     * @since 1.4

     */

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

        return delegate.getRequestProperties();

    }

    /*

     * We support JDK 1.2.x so we can't count on these from JDK 1.3.

     * We override and supply our own version.

     */

    public void setInstanceFollowRedirects(boolean shouldFollow) {

        delegate.setInstanceFollowRedirects(shouldFollow);

    }

    public boolean getInstanceFollowRedirects() {

        return delegate.getInstanceFollowRedirects();

    }

    public void setRequestMethod(String method) throws ProtocolException {

        delegate.setRequestMethod(method);

    }

    public String getRequestMethod() {

        return delegate.getRequestMethod();

    }

    public String getResponseMessage() throws IOException {

        return delegate.getResponseMessage();

    }

    public long getHeaderFieldDate(String name, long Default) {

        return delegate.getHeaderFieldDate(name, Default);

    }

    public Permission getPermission() throws IOException {

        return delegate.getPermission();

    }

    public URL getURL() {

        return delegate.getURL();

    }

    public int getContentLength() {

        return delegate.getContentLength();

    }

    public long getContentLengthLong() {

        return delegate.getContentLengthLong();

    }

    public String getContentType() {

        return delegate.getContentType();

    }

    public String getContentEncoding() {

        return delegate.getContentEncoding();

    }

    public long getExpiration() {

        return delegate.getExpiration();

    }

    public long getDate() {

        return delegate.getDate();

    }

    public long getLastModified() {

        return delegate.getLastModified();

    }

    public int getHeaderFieldInt(String name, int Default) {

        return delegate.getHeaderFieldInt(name, Default);

    }

    public long getHeaderFieldLong(String name, long Default) {

        return delegate.getHeaderFieldLong(name, Default);

    }

    public Object getContent() throws IOException {

        return delegate.getContent();

    }

    @SuppressWarnings("rawtypes")

    public Object getContent(Class[] classes) throws IOException {

        return delegate.getContent(classes);

    }

    public String toString() {

        return delegate.toString();

    }

    public void setDoInput(boolean doinput) {

        delegate.setDoInput(doinput);

    }

    public boolean getDoInput() {

        return delegate.getDoInput();

    }

    public void setDoOutput(boolean dooutput) {

        delegate.setDoOutput(dooutput);

    }

    public boolean getDoOutput() {

        return delegate.getDoOutput();

    }

    public void setAllowUserInteraction(boolean allowuserinteraction) {

        delegate.setAllowUserInteraction(allowuserinteraction);

    }

    public boolean getAllowUserInteraction() {

        return delegate.getAllowUserInteraction();

    }

    public void setUseCaches(boolean usecaches) {

        delegate.setUseCaches(usecaches);

    }

    public boolean getUseCaches() {

        return delegate.getUseCaches();

    }

    public void setIfModifiedSince(long ifmodifiedsince) {

        delegate.setIfModifiedSince(ifmodifiedsince);

    }

    public long getIfModifiedSince() {

        return delegate.getIfModifiedSince();

    }

    public boolean getDefaultUseCaches() {

        return delegate.getDefaultUseCaches();

    }

    public void setDefaultUseCaches(boolean defaultusecaches) {

        delegate.setDefaultUseCaches(defaultusecaches);

    }

    public boolean equals(Object obj) {

        return this == obj || ((obj instanceof HttpsURLConnectionImpl) &&

            delegate.equals(((HttpsURLConnectionImpl)obj).delegate));

    }

    public int hashCode() {

        return delegate.hashCode();

    }

    public void setConnectTimeout(int timeout) {

        delegate.setConnectTimeout(timeout);

    }

    public int getConnectTimeout() {

        return delegate.getConnectTimeout();

    }

    public void setReadTimeout(int timeout) {

        delegate.setReadTimeout(timeout);

    }

    public int getReadTimeout() {

        return delegate.getReadTimeout();

    }

    public void setFixedLengthStreamingMode (int contentLength) {

        delegate.setFixedLengthStreamingMode(contentLength);

    }

    public void setFixedLengthStreamingMode(long contentLength) {

        delegate.setFixedLengthStreamingMode(contentLength);

    }

    public void setChunkedStreamingMode (int chunklen) {

        delegate.setChunkedStreamingMode(chunklen);

    }

    @Override

    public void setAuthenticator(Authenticator auth) {

        delegate.setAuthenticator(auth);

    }

    @Override

    public Optional<SSLSession> getSSLSession() {

        return Optional.ofNullable(delegate.getSSLSession());

    }

}