/* ============================================================================
 * Douglas Thrift's Search Engine License
 *
 * Copyright (C) 2002, Douglas Thrift. All Rights Reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * 3. The end-user documentation included with the redistribution, if any, must
 *    include the following acknowledgment:
 *
 *       "This product includes software developed by Douglas Thrift
 *       (http://computers.douglasthrift.net/searchengine/)."
 *
 *    Alternately, this acknowledgment may appear in the software itself, if
 *    and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Douglas Thrift" and "Douglas Thrift's Search Engine" must not
 *    be used to endorse or promote products derived from this software without
 *    specific prior written permission.  For written permission, please visit
 *    http://www.douglasthrift.net/contact.cgi for contact information.
 *
 * 5. Products derived from this software may not be called "Douglas Thrift's
 *    Search Engine", nor may "Douglas Thrift's Search Engine" appear in their
 *    name, without prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ============================================================================
 */
// Douglas Thrift's Search Engine HTTP Handler
//
// Douglas Thrift
//
// HttpHandler.cpp

#include "HttpHandler.h"

#ifdef _WIN32
#define PATH_SEPARATOR "\\"
#define ENV_SEPARATOR ';'
#else
#define PATH_SEPARATOR "/"
#define ENV_SEPARATOR ':'
#endif

HttpHandler::HttpHandler()
{
	string arguments = "(Ljava/lang/String;ILjava/lang/String;Ljava/lang/Strin"
		+ string("g;Ljava/lang/String;)Ljava/lang/String;");

	begin = 0;

//	setJarPath();

//	options[0].optionString = jarPath;
//	memset(&vm_args, 0, sizeof (vm_args));
//	vm_args.version = JNI_VERSION_1_4;
//	vm_args.nOptions = 1;
//	vm_args.options = options;

//	status = JNI_CreateJavaVM(&jvm, (void**)&env, &vm_args);

//	if (status != JNI_ERR)
//	{
//		cls = env->FindClass("HttpConnector");

//		if (cls != 0)
//		{
//			mid = env->GetStaticMethodID(cls, "connect", arguments.c_str());
//		}
//	}
}

HttpHandler::~HttpHandler()
{
//	if (status != JNI_ERR)
//	{
//		jvm->DestroyJavaVM();
//	}

//	delete [] jarPath;
}

bool HttpHandler::connect(URL &url, bool head)
{
	bool answer = false;

//	if (status != JNI_ERR)
//	{
//		if (cls != 0)
//		{
//			if (mid != 0)
//			{
//				jstring addressJ = env->NewStringUTF(url.getAddress().c_str());
//				jint portJ = url.getPort();
//				jstring pathJ = env->NewStringUTF(url.getPath().c_str());
//				jstring programNameJ = env->NewStringUTF(programName.c_str());
//				jstring programVersionJ =
//					env->NewStringUTF(programVersion.c_str());

//				jstring pageJ = (jstring)env->CallStaticObjectMethod(cls, mid,
//					addressJ, portJ, pathJ, programNameJ, programVersionJ);

//				const char* pageC = env->GetStringUTFChars(pageJ, 0);
//				page = pageC;
//				env->ReleaseStringUTFChars(pageJ, pageC);

//				if (page != "unknown host\n" && page != "io exception\n" &&
//					page != "bad headers\n") answer = true;
//			}
//		}
//	}

	return answer;
}

HttpHandler& HttpHandler::getline(string& line, char endline)
{
	int end = page.find(endline, begin);
	int newline = page.find('\n', begin);

	if (newline < end || end == string::npos)
	{
		end = newline;
	}

	line = page.substr(begin, end - begin);

	if (end == string::npos)
	{
		begin = end;
	}
	else
	{
		begin = end + 1;
	}

	return *this;
}

bool HttpHandler::good()
{
	bool answer = true;

	if (begin >= page.length())
	{
		answer = false;
	}
	else if (begin == string::npos)
	{
		answer = false;
	}

	return answer;
}

void HttpHandler::clear()
{
	begin = 0;
	page = "";
}

/*void HttpHandler::setJarPath()
{
	const string jarFile = "HttpConnector.jar";
	string jarFilePath = jarFile;

	ifstream fin(jarFilePath.c_str());
	if (!fin.is_open())
	{
		unsigned end = program.rfind(PATH_SEPARATOR);
		if (end != string::npos)
		{
			string path = program.substr(0, end);

			jarFilePath = path + PATH_SEPARATOR + jarFile;

			fin.open(jarFilePath.c_str());
			if (!fin.is_open())
			{
				cerr << program << ": Could not find required file: "
					<< jarFile << "\n";
				exit(1);
			}
			else
			{
				fin.close();
			}
		}
		else
		{
			string envPath = getenv("PATH");

			if (debug) cerr << "envPath = " << envPath << "\n";

			unsigned begin = 0;
			do
			{
				unsigned end = envPath.find(ENV_SEPARATOR, begin);
				string path = envPath.substr(begin, end);

				if (debug) cerr << "path = " << path << "\n";

				jarFilePath = path + PATH_SEPARATOR + jarFile;

				fin.open(jarFilePath.c_str());
				if (fin.is_open())
				{
					fin.close();
					break;
				}

				begin = end != string::npos ? end + 1 : string::npos;
			}
			while (begin < envPath.length());

			if (begin == string::npos)
			{
				cerr << program << ": Could not find required file: "
					<< jarFile << "\n";
				exit(1);
			}
		}
	}
	else
	{
		fin.close();
	}

	string jarPath = "-Djava.class.path=" + jarFilePath;

//	this->jarPath = new char[jarPath.length()];
//	strcpy(this->jarPath, jarPath.c_str());
}*/