#include "HttpResponse.h"
#include "prefs.h"
#include "PiecedSegment.h"
#include "Piece.h"
#include "TransferEncoding.h"
#include "Request.h"
#include "HttpHeader.h"
#include "HttpRequest.h"
#include "Exception.h"
#include <iostream>
#include <cppunit/extensions/HelperMacros.h>

namespace aria2 {

class HttpResponseTest : public CppUnit::TestFixture {

  CPPUNIT_TEST_SUITE(HttpResponseTest);
  CPPUNIT_TEST(testGetContentLength_null);
  CPPUNIT_TEST(testGetContentLength_contentLength);
  //CPPUNIT_TEST(testGetContentLength_range);
  CPPUNIT_TEST(testGetEntityLength);
  CPPUNIT_TEST(testGetContentType);
  CPPUNIT_TEST(testDeterminFilename_without_ContentDisposition);
  CPPUNIT_TEST(testDeterminFilename_with_ContentDisposition_zero_length);
  CPPUNIT_TEST(testDeterminFilename_with_ContentDisposition);
  CPPUNIT_TEST(testGetRedirectURI_without_Location);
  CPPUNIT_TEST(testGetRedirectURI_with_Location);
  CPPUNIT_TEST(testIsRedirect);
  CPPUNIT_TEST(testIsTransferEncodingSpecified);
  CPPUNIT_TEST(testGetTransferEncoding);
  CPPUNIT_TEST(testGetTransferDecoder);
  CPPUNIT_TEST(testValidateResponse);
  CPPUNIT_TEST(testValidateResponse_good_range);
  CPPUNIT_TEST(testValidateResponse_bad_range);
  CPPUNIT_TEST(testValidateResponse_chunked);
  CPPUNIT_TEST_SUITE_END();
private:

public:
  void setUp() {
  }

  void testGetContentLength_null();
  void testGetContentLength_contentLength();
  void testGetEntityLength();
  void testGetContentType();
  void testDeterminFilename_without_ContentDisposition();
  void testDeterminFilename_with_ContentDisposition_zero_length();
  void testDeterminFilename_with_ContentDisposition();
  void testGetRedirectURI_without_Location();
  void testGetRedirectURI_with_Location();
  void testIsRedirect();
  void testIsTransferEncodingSpecified();
  void testGetTransferEncoding();
  void testGetTransferDecoder();
  void testValidateResponse();
  void testValidateResponse_good_range();
  void testValidateResponse_bad_range();
  void testValidateResponse_chunked();
};


CPPUNIT_TEST_SUITE_REGISTRATION( HttpResponseTest );

void HttpResponseTest::testGetContentLength_null()
{
  HttpResponse httpResponse;

  CPPUNIT_ASSERT_EQUAL(0ULL, httpResponse.getContentLength());
}

void HttpResponseTest::testGetContentLength_contentLength()
{
  HttpResponse httpResponse;

  SharedHandle<HttpHeader> httpHeader(new HttpHeader());
  httpHeader->put("Content-Length", "4294967296");

  httpResponse.setHttpHeader(httpHeader);

  CPPUNIT_ASSERT_EQUAL(4294967296ULL, httpResponse.getContentLength());
}

void HttpResponseTest::testGetEntityLength()
{
  HttpResponse httpResponse;

  SharedHandle<HttpHeader> httpHeader(new HttpHeader());
  httpHeader->put("Content-Length", "4294967296");

  httpResponse.setHttpHeader(httpHeader);

  CPPUNIT_ASSERT_EQUAL(4294967296ULL, httpResponse.getEntityLength());

  httpHeader->put("Content-Range", "bytes 1-4294967296/4294967297");

  CPPUNIT_ASSERT_EQUAL(4294967297ULL, httpResponse.getEntityLength());

}

void HttpResponseTest::testGetContentType()
{
  HttpResponse httpResponse;
  SharedHandle<HttpHeader> httpHeader(new HttpHeader());
  httpHeader->put("content-type", "application/octet-stream");
  httpResponse.setHttpHeader(httpHeader);
  CPPUNIT_ASSERT_EQUAL(std::string("application/octet-stream"),
		       httpResponse.getContentType());
}

void HttpResponseTest::testDeterminFilename_without_ContentDisposition()
{
  HttpResponse httpResponse;
  SharedHandle<HttpHeader> httpHeader(new HttpHeader());
  SharedHandle<HttpRequest> httpRequest(new HttpRequest());
  SharedHandle<Request> request(new Request());
  request->setUrl("http://localhost/archives/aria2-1.0.0.tar.bz2");
  httpRequest->setRequest(request);

  httpResponse.setHttpHeader(httpHeader);
  httpResponse.setHttpRequest(httpRequest);

  CPPUNIT_ASSERT_EQUAL(std::string("aria2-1.0.0.tar.bz2"),
		       httpResponse.determinFilename());
}

void HttpResponseTest::testDeterminFilename_with_ContentDisposition_zero_length()
{
  HttpResponse httpResponse;
  SharedHandle<HttpHeader> httpHeader(new HttpHeader());
  httpHeader->put("Content-Disposition", "attachment; filename=\"\"");
  SharedHandle<HttpRequest> httpRequest(new HttpRequest());
  SharedHandle<Request> request(new Request());
  request->setUrl("http://localhost/archives/aria2-1.0.0.tar.bz2");
  httpRequest->setRequest(request);

  httpResponse.setHttpHeader(httpHeader);
  httpResponse.setHttpRequest(httpRequest);

  CPPUNIT_ASSERT_EQUAL(std::string("aria2-1.0.0.tar.bz2"),
		       httpResponse.determinFilename());
}

void HttpResponseTest::testDeterminFilename_with_ContentDisposition()
{
  HttpResponse httpResponse;
  SharedHandle<HttpHeader> httpHeader(new HttpHeader());
  httpHeader->put("Content-Disposition", "attachment; filename=\"aria2-current.tar.bz2\"");
  SharedHandle<HttpRequest> httpRequest(new HttpRequest());
  SharedHandle<Request> request(new Request());
  request->setUrl("http://localhost/archives/aria2-1.0.0.tar.bz2");
  httpRequest->setRequest(request);

  httpResponse.setHttpHeader(httpHeader);
  httpResponse.setHttpRequest(httpRequest);

  CPPUNIT_ASSERT_EQUAL(std::string("aria2-current.tar.bz2"),
		       httpResponse.determinFilename());
}

void HttpResponseTest::testGetRedirectURI_without_Location()
{
  HttpResponse httpResponse;
  SharedHandle<HttpHeader> httpHeader(new HttpHeader());

  httpResponse.setHttpHeader(httpHeader);

  CPPUNIT_ASSERT_EQUAL(std::string(""),
		       httpResponse.getRedirectURI());  
}

void HttpResponseTest::testGetRedirectURI_with_Location()
{
  HttpResponse httpResponse;
  SharedHandle<HttpHeader> httpHeader(new HttpHeader());
  httpHeader->put("Location", "http://localhost/download/aria2-1.0.0.tar.bz2");
  httpResponse.setHttpHeader(httpHeader);

  CPPUNIT_ASSERT_EQUAL(std::string("http://localhost/download/aria2-1.0.0.tar.bz2"),
		       httpResponse.getRedirectURI());
}

void HttpResponseTest::testIsRedirect()
{
  HttpResponse httpResponse;
  SharedHandle<HttpHeader> httpHeader(new HttpHeader());
  httpHeader->setResponseStatus("200");
  httpHeader->put("Location", "http://localhost/download/aria2-1.0.0.tar.bz2");

  httpResponse.setHttpHeader(httpHeader);

  CPPUNIT_ASSERT(!httpResponse.isRedirect());

  httpHeader->setResponseStatus("304");

  CPPUNIT_ASSERT(httpResponse.isRedirect());  
}

void HttpResponseTest::testIsTransferEncodingSpecified()
{
  HttpResponse httpResponse;
  SharedHandle<HttpHeader> httpHeader(new HttpHeader());

  httpResponse.setHttpHeader(httpHeader);

  CPPUNIT_ASSERT(!httpResponse.isTransferEncodingSpecified());  

  httpHeader->put("Transfer-Encoding", "chunked");

  CPPUNIT_ASSERT(httpResponse.isTransferEncodingSpecified());
}

void HttpResponseTest::testGetTransferEncoding()
{
  HttpResponse httpResponse;
  SharedHandle<HttpHeader> httpHeader(new HttpHeader());

  httpResponse.setHttpHeader(httpHeader);

  CPPUNIT_ASSERT_EQUAL(std::string(""), httpResponse.getTransferEncoding());  

  httpHeader->put("Transfer-Encoding", "chunked");

  CPPUNIT_ASSERT_EQUAL(std::string("chunked"), httpResponse.getTransferEncoding());
}

void HttpResponseTest::testGetTransferDecoder()
{
  HttpResponse httpResponse;
  SharedHandle<HttpHeader> httpHeader(new HttpHeader());

  httpResponse.setHttpHeader(httpHeader);

  CPPUNIT_ASSERT(httpResponse.getTransferDecoder().isNull());  

  httpHeader->put("Transfer-Encoding", "chunked");

  CPPUNIT_ASSERT(!httpResponse.getTransferDecoder().isNull());
}

void HttpResponseTest::testValidateResponse()
{
  HttpResponse httpResponse;

  SharedHandle<HttpHeader> httpHeader(new HttpHeader());
  httpHeader->setResponseStatus("401");
  httpResponse.setHttpHeader(httpHeader);

  try {
    httpResponse.validateResponse();
    CPPUNIT_FAIL("exception must be thrown.");
  } catch(Exception* e) {
    delete e;
  }

  httpHeader->setResponseStatus("505");

  try {
    httpResponse.validateResponse();
    CPPUNIT_FAIL("exception must be thrown.");
  } catch(Exception* e) {
    delete e;
  }

  httpHeader->setResponseStatus("304");

  try {
    httpResponse.validateResponse();
    CPPUNIT_FAIL("exception must be thrown.");
  } catch(Exception* e) {
    delete e;
  }

  httpHeader->put("Location", "http://localhost/archives/aria2-1.0.0.tar.bz2");

  try {
    httpResponse.validateResponse();
  } catch(Exception* e) {
    delete e;
    CPPUNIT_FAIL("exception must not be thrown.");
  }
}
 
void HttpResponseTest::testValidateResponse_good_range()
{
  HttpResponse httpResponse;
  SharedHandle<HttpHeader> httpHeader(new HttpHeader());
  httpResponse.setHttpHeader(httpHeader);

  SharedHandle<HttpRequest> httpRequest(new HttpRequest());
  SharedHandle<Piece> p(new Piece(1, 1024*1024));
  SharedHandle<Segment> segment(new PiecedSegment(1024*1024, p));
  httpRequest->setSegment(segment);
  SharedHandle<Request> request(new Request());
  request->setUrl("http://localhost/archives/aria2-1.0.0.tar.bz2");
  httpRequest->setRequest(request);
  httpResponse.setHttpRequest(httpRequest);
  httpHeader->setResponseStatus("206");
  httpHeader->put("Content-Range", "bytes 1048576-10485760/10485761");
  
  try {
    httpResponse.validateResponse();
  } catch(Exception* e) {
    std::cerr << e->getMsg() << std::endl;
    delete e;
    CPPUNIT_FAIL("exception must not be thrown.");
  }
}

void HttpResponseTest::testValidateResponse_bad_range()
{
  HttpResponse httpResponse;
  SharedHandle<HttpHeader> httpHeader(new HttpHeader());
  httpResponse.setHttpHeader(httpHeader);

  SharedHandle<HttpRequest> httpRequest(new HttpRequest());
  SharedHandle<Piece> p(new Piece(1, 1024*1024));
  SharedHandle<Segment> segment(new PiecedSegment(1024*1024, p));
  httpRequest->setSegment(segment);
  SharedHandle<Request> request(new Request());
  request->setUrl("http://localhost/archives/aria2-1.0.0.tar.bz2");
  httpRequest->setRequest(request);
  httpResponse.setHttpRequest(httpRequest);
  httpHeader->setResponseStatus("206");
  httpHeader->put("Content-Range", "bytes 0-10485760/10485761");

  try {
    httpResponse.validateResponse();
    CPPUNIT_FAIL("exception must be thrown.");
  } catch(Exception* e) {
    delete e;
  }
}

void HttpResponseTest::testValidateResponse_chunked()
{
  HttpResponse httpResponse;
  SharedHandle<HttpHeader> httpHeader(new HttpHeader());
  httpResponse.setHttpHeader(httpHeader);

  SharedHandle<HttpRequest> httpRequest(new HttpRequest());
  SharedHandle<Piece> p(new Piece(1, 1024*1024));
  SharedHandle<Segment> segment(new PiecedSegment(1024*1024, p));
  httpRequest->setSegment(segment);
  SharedHandle<Request> request(new Request());
  request->setUrl("http://localhost/archives/aria2-1.0.0.tar.bz2");
  httpRequest->setRequest(request);
  httpResponse.setHttpRequest(httpRequest);
  httpHeader->setResponseStatus("206");
  httpHeader->put("Content-Range", "bytes 0-10485760/10485761");
  httpHeader->put("Transfer-Encoding", "chunked");

  // if transfer-encoding is specified, then range validation is skipped.
  try {
    httpResponse.validateResponse();
  } catch(Exception* e) {
    delete e;
    CPPUNIT_FAIL("exception must not be thrown.");
  }
}

} // namespace aria2