URLConnection.h

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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.
 */

#ifndef _DECAF_NET_URLCONNECTION_H_
#define _DECAF_NET_URLCONNECTION_H_

#include <decaf/util/Config.h>

#include <decaf/io/InputStream.h>
#include <decaf/io/OutputStream.h>
#include <decaf/net/URL.h>
#include <decaf/net/UnknownServiceException.h>

namespace decaf {
namespace net {

    class URLConnectionImpl;

    class DECAF_API URLConnection {
    private:

        URLConnectionImpl* impl;

        static bool defaultAllowUserInteraction;

        static bool defaultUseCaches;

    protected:

        URL url;

        long long ifModifiedSince;

        bool useCaches;

        bool connected;

        bool doOutput;

        bool doInput;

        bool allowUserInteraction;

    private:

        URLConnection(const URLConnection&);
        URLConnection& operator= (const URLConnection&);

    protected:

        URLConnection(const URL& url);

    public:

        virtual ~URLConnection();

        virtual void connect() = 0;

    public:

        bool getAllowUserInteraction() const {
            return allowUserInteraction;
        }

        void setAllowUserInteraction(bool newValue);

        std::string getContentEncoding() const {
            return getHeaderField("Content-Encoding");
        }

        int getContentLength() const {
            return getHeaderFieldInt("Content-Length", -1);
        }

        std::string getContentType() const {
            return getHeaderField("Content-Type");
        }

        long long getDate() const {
            return getHeaderFieldDate("Date", 0);
        }

        bool getDefaultUseCaches() const {
            return defaultUseCaches;
        }

        void setDefaultUseCaches(bool newValue);

        bool getDoInput() const {
            return doInput;
        }

        void setDoInput(bool newValue);

        bool getDoOutput() const {
            return doOutput;
        }

        void setDoOutput(bool newValue);

        long getExpiration() const {
            return getHeaderFieldDate("Expires", 0);
        }

        URL getURL() const {
            return url;
        }

        bool getUseCaches() const {
            return useCaches;
        }

        void setUseCaches(bool newValue);

        int getConnectTimeout() const;

        void setConnectTimeout(int timeout);

        int getReadTimeout() const;

        void setReadTimeout(int timeout);

        virtual std::string toString() const {
            return std::string("URLConnection:") + url.toString();
        }

        virtual std::string getHeaderField(int pos DECAF_UNUSED) const {
            return "";
        }

        virtual std::string getHeaderField(const std::string& key DECAF_UNUSED) const {
            return "";
        }

        long long getHeaderFieldDate(const std::string& field, long long defaultValue) const;

        int getHeaderFieldInt(const std::string& field, int defaultValue) const;

        long long getLastModified() const;

        virtual decaf::io::InputStream* getInputStream() {
            throw UnknownServiceException(
                __FILE__, __LINE__, "Does not support writing to the input stream");
        }

        virtual decaf::io::OutputStream* getOutputStream() {
            throw UnknownServiceException(
                __FILE__, __LINE__, "Does not support writing to the output stream");
        }

        long long getIfModifiedSince() const {
            return ifModifiedSince;
        }

        void setIfModifiedSince(long long newValue);

    public:

        static bool getDefaultAllowUserInteraction() {
            return defaultAllowUserInteraction;
        }

        static void setDefaultAllowUserInteraction(bool allows) {
            defaultAllowUserInteraction = allows;
        }

    };

}}

#endif /* _DECAF_NET_URLCONNECTION_H_ */