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HTTPResponse.cpp

//
// HTTPResponse.cpp
//
// $Id: //poco/1.2/Net/src/HTTPResponse.cpp#2 $
//
// Library: Net
// Package: HTTP
// Module:  HTTPResponse
//
// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
// 
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//


#include "Poco/Net/HTTPResponse.h"
#include "Poco/Net/NetException.h"
#include "Poco/NumberFormatter.h"
#include "Poco/NumberParser.h"
#include "Poco/DateTime.h"
#include "Poco/DateTimeFormatter.h"
#include "Poco/DateTimeFormat.h"
#include "Poco/DateTimeParser.h"
#include <ctype.h>


using Poco::DateTime;
using Poco::NumberFormatter;
using Poco::NumberParser;
using Poco::DateTimeFormatter;
using Poco::DateTimeFormat;
using Poco::DateTimeParser;


namespace Poco {
namespace Net {


const std::string HTTPResponse::HTTP_REASON_CONTINUE                        = "Continue";
const std::string HTTPResponse::HTTP_REASON_SWITCHING_PROTOCOLS             = "Switching Protocols";
const std::string HTTPResponse::HTTP_REASON_OK                              = "OK";
const std::string HTTPResponse::HTTP_REASON_CREATED                         = "Created";
const std::string HTTPResponse::HTTP_REASON_ACCEPTED                        = "Accepted";
const std::string HTTPResponse::HTTP_REASON_NONAUTHORITATIVE                = "Non-Authoritative Information";
const std::string HTTPResponse::HTTP_REASON_NO_CONTENT                      = "No Content";
const std::string HTTPResponse::HTTP_REASON_RESET_CONTENT                   = "Reset Content";
const std::string HTTPResponse::HTTP_REASON_PARTIAL_CONTENT                 = "Partial Content";
const std::string HTTPResponse::HTTP_REASON_MULTIPLE_CHOICES                = "Multiple Choices";
const std::string HTTPResponse::HTTP_REASON_MOVED_PERMANENTLY               = "Moved Permanently";
const std::string HTTPResponse::HTTP_REASON_FOUND                           = "Found";
const std::string HTTPResponse::HTTP_REASON_SEE_OTHER                       = "See Other";
const std::string HTTPResponse::HTTP_REASON_NOT_MODIFIED                    = "Not Modified";
const std::string HTTPResponse::HTTP_REASON_USEPROXY                        = "Use Proxy";
const std::string HTTPResponse::HTTP_REASON_TEMPORARY_REDIRECT              = "Temporary Redirect";
const std::string HTTPResponse::HTTP_REASON_BAD_REQUEST                     = "Bad Request";
const std::string HTTPResponse::HTTP_REASON_UNAUTHORIZED                    = "Unauthorized";
const std::string HTTPResponse::HTTP_REASON_PAYMENT_REQUIRED                = "Payment Required";
const std::string HTTPResponse::HTTP_REASON_FORBIDDEN                       = "Forbidden";
const std::string HTTPResponse::HTTP_REASON_NOT_FOUND                       = "Not Found";
const std::string HTTPResponse::HTTP_REASON_METHOD_NOT_ALLOWED              = "Method Not Allowed";
const std::string HTTPResponse::HTTP_REASON_NOT_ACCEPTABLE                  = "Not Acceptable";
const std::string HTTPResponse::HTTP_REASON_PROXY_AUTHENTICATION_REQUIRED   = "Proxy Authentication Required";
const std::string HTTPResponse::HTTP_REASON_REQUEST_TIMEOUT                 = "Request Time-out";
const std::string HTTPResponse::HTTP_REASON_CONFLICT                        = "Conflict";
const std::string HTTPResponse::HTTP_REASON_GONE                            = "Gone";
const std::string HTTPResponse::HTTP_REASON_LENGTH_REQUIRED                 = "Length Required";
const std::string HTTPResponse::HTTP_REASON_PRECONDITION_FAILED             = "Precondition Failed";
const std::string HTTPResponse::HTTP_REASON_REQUESTENTITYTOOLARGE           = "Request Entity Too Large";
const std::string HTTPResponse::HTTP_REASON_REQUESTURITOOLONG               = "Request-URI Too Large";
const std::string HTTPResponse::HTTP_REASON_UNSUPPORTEDMEDIATYPE            = "Unsupported Media Type";
const std::string HTTPResponse::HTTP_REASON_REQUESTED_RANGE_NOT_SATISFIABLE = "Requested Range Not Satisfiable";
const std::string HTTPResponse::HTTP_REASON_EXPECTATION_FAILED              = "Expectation Failed";
const std::string HTTPResponse::HTTP_REASON_INTERNAL_SERVER_ERROR           = "Internal Server Error";
const std::string HTTPResponse::HTTP_REASON_NOT_IMPLEMENTED                 = "Not Implemented";
const std::string HTTPResponse::HTTP_REASON_BAD_GATEWAY                     = "Bad Gateway";
const std::string HTTPResponse::HTTP_REASON_SERVICE_UNAVAILABLE             = "Service Unavailable";
const std::string HTTPResponse::HTTP_REASON_GATEWAY_TIMEOUT                 = "Gateway Time-out";
const std::string HTTPResponse::HTTP_REASON_VERSION_NOT_SUPPORTED           = "HTTP Version not supported";
const std::string HTTPResponse::HTTP_REASON_UNKNOWN                         = "???";
const std::string HTTPResponse::DATE       = "Date";
const std::string HTTPResponse::SET_COOKIE = "Set-Cookie";


HTTPResponse::HTTPResponse():
      _status(HTTP_OK),
      _reason(getReasonForStatus(HTTP_OK))
{
}

      
00112 HTTPResponse::HTTPResponse(HTTPStatus status, const std::string& reason):
      _status(status),
      _reason(reason)
{
}


      
00120 HTTPResponse::HTTPResponse(const std::string& version, HTTPStatus status, const std::string& reason):
      HTTPMessage(version),
      _status(status),
      _reason(reason)
{
}

      
00128 HTTPResponse::HTTPResponse(HTTPStatus status):
      _status(status),
      _reason(getReasonForStatus(status))
{
}


00135 HTTPResponse::HTTPResponse(const std::string& version, HTTPStatus status):
      HTTPMessage(version),
      _status(status),
      _reason(getReasonForStatus(status))
{
}


00143 HTTPResponse::~HTTPResponse()
{
}


00148 void HTTPResponse::setStatus(HTTPStatus status)
{
      _status = status;
}


00154 void HTTPResponse::setStatus(const std::string& status)
{
      setStatus((HTTPStatus) NumberParser::parse(status));
}
      
      
00160 void HTTPResponse::setReason(const std::string& reason)
{
      _reason = reason;
}


00166 void HTTPResponse::setStatusAndReason(HTTPStatus status, const std::string& reason)
{
      _status = status;
      _reason = reason;
}

      
00173 void HTTPResponse::setStatusAndReason(HTTPStatus status)
{
      setStatusAndReason(status, getReasonForStatus(status));
}


00179 void HTTPResponse::setDate(const Poco::Timestamp& dateTime)
{
      set(DATE, DateTimeFormatter::format(dateTime, DateTimeFormat::HTTP_FORMAT));
}

      
00185 Poco::Timestamp HTTPResponse::getDate() const
{
      const std::string& dateTime = get(DATE);
      int tzd;
      return DateTimeParser::parse(dateTime, tzd).timestamp();
}


00193 void HTTPResponse::addCookie(const HTTPCookie& cookie)
{
      add(SET_COOKIE, cookie.toString());
}


00199 void HTTPResponse::getCookies(std::vector<HTTPCookie>& cookies) const
{
      cookies.clear();
      NameValueCollection::ConstIterator it = find(SET_COOKIE);
      while (it != end() && it->first == SET_COOKIE)
      {
            NameValueCollection nvc;
            splitParameters(it->second.begin(), it->second.end(), nvc);
            cookies.push_back(HTTPCookie(nvc));
            ++it;
      }
}


00213 void HTTPResponse::write(std::ostream& ostr) const
{
      ostr << getVersion() << " " << NumberFormatter::format((int) _status) << " " << _reason << "\r\n";
      HTTPMessage::write(ostr);
      ostr << "\r\n";
}


00221 void HTTPResponse::read(std::istream& istr)
{
      static const int eof = std::char_traits<char>::eof();

      std::string version;
      std::string status;
      std::string reason;
      
      int ch =  istr.get();
      if (ch == eof) throw NoMessageException();
      while (isspace(ch)) ch = istr.get();
      if (ch == eof) throw MessageException("No HTTP response header");
      while (!isspace(ch) && ch != eof && version.length() < MAX_VERSION_LENGTH) { version += (char) ch; ch = istr.get(); }
      if (!isspace(ch)) throw MessageException("Invalid HTTP version string");
      while (isspace(ch)) ch = istr.get();
      while (!isspace(ch) && ch != eof && status.length() < MAX_STATUS_LENGTH) { status += (char) ch; ch = istr.get(); }
      if (!isspace(ch)) throw MessageException("Invalid HTTP status code");
      while (isspace(ch)) ch = istr.get();
      while (ch != '\r' && ch != '\n' && ch != eof && reason.length() < MAX_REASON_LENGTH) { reason += (char) ch; ch = istr.get(); }
      if (!isspace(ch)) throw MessageException("HTTP reason string too long");
      if (ch == '\r') ch = istr.get();

      HTTPMessage::read(istr);
      ch = istr.get();
      while (ch != '\n' && ch != eof) { ch = istr.get(); }
      setVersion(version);
      setStatus(status);
      setReason(reason);
}


00252 const std::string& HTTPResponse::getReasonForStatus(HTTPStatus status)
{
      switch (status)
      {
      case HTTP_CONTINUE: 
            return HTTP_REASON_CONTINUE;
      case HTTP_SWITCHING_PROTOCOLS: 
            return HTTP_REASON_SWITCHING_PROTOCOLS;
      case HTTP_OK: 
            return HTTP_REASON_OK;
      case HTTP_CREATED: 
            return HTTP_REASON_CREATED;
      case HTTP_ACCEPTED: 
            return HTTP_REASON_ACCEPTED;
      case HTTP_NONAUTHORITATIVE:   
            return HTTP_REASON_NONAUTHORITATIVE;
      case HTTP_NO_CONTENT: 
            return HTTP_REASON_NO_CONTENT;
      case HTTP_RESET_CONTENT: 
            return HTTP_REASON_RESET_CONTENT;
      case HTTP_PARTIAL_CONTENT: 
            return HTTP_REASON_PARTIAL_CONTENT;
      case HTTP_MULTIPLE_CHOICES: 
            return HTTP_REASON_MULTIPLE_CHOICES;
      case HTTP_MOVED_PERMANENTLY: 
            return HTTP_REASON_MOVED_PERMANENTLY;
      case HTTP_FOUND: 
            return HTTP_REASON_FOUND;
      case HTTP_SEE_OTHER: 
            return HTTP_REASON_SEE_OTHER;
      case HTTP_NOT_MODIFIED: 
            return HTTP_REASON_NOT_MODIFIED;
      case HTTP_USEPROXY: 
            return HTTP_REASON_USEPROXY;
      case HTTP_TEMPORARY_REDIRECT: 
            return HTTP_REASON_TEMPORARY_REDIRECT;
      case HTTP_BAD_REQUEST: 
            return HTTP_REASON_BAD_REQUEST;
      case HTTP_UNAUTHORIZED: 
            return HTTP_REASON_UNAUTHORIZED;
      case HTTP_PAYMENT_REQUIRED: 
            return HTTP_REASON_PAYMENT_REQUIRED;
      case HTTP_FORBIDDEN: 
            return HTTP_REASON_FORBIDDEN;
      case HTTP_NOT_FOUND: 
            return HTTP_REASON_NOT_FOUND;
      case HTTP_METHOD_NOT_ALLOWED:
            return HTTP_REASON_METHOD_NOT_ALLOWED;
      case HTTP_NOT_ACCEPTABLE: 
            return HTTP_REASON_NOT_ACCEPTABLE;
      case HTTP_PROXY_AUTHENTICATION_REQUIRED: 
            return HTTP_REASON_PROXY_AUTHENTICATION_REQUIRED;
      case HTTP_REQUEST_TIMEOUT: 
            return HTTP_REASON_REQUEST_TIMEOUT;
      case HTTP_CONFLICT: 
            return HTTP_REASON_CONFLICT;
      case HTTP_GONE: 
            return HTTP_REASON_GONE;
      case HTTP_LENGTH_REQUIRED: 
            return HTTP_REASON_LENGTH_REQUIRED;
      case HTTP_PRECONDITION_FAILED: 
            return HTTP_REASON_PRECONDITION_FAILED;
      case HTTP_REQUESTENTITYTOOLARGE: 
            return HTTP_REASON_REQUESTENTITYTOOLARGE;
      case HTTP_REQUESTURITOOLONG: 
            return HTTP_REASON_REQUESTURITOOLONG;
      case HTTP_UNSUPPORTEDMEDIATYPE: 
            return HTTP_REASON_UNSUPPORTEDMEDIATYPE;
      case HTTP_REQUESTED_RANGE_NOT_SATISFIABLE: 
            return HTTP_REASON_REQUESTED_RANGE_NOT_SATISFIABLE;
      case HTTP_EXPECTATION_FAILED: 
            return HTTP_REASON_EXPECTATION_FAILED;
      case HTTP_INTERNAL_SERVER_ERROR: 
            return HTTP_REASON_INTERNAL_SERVER_ERROR;
      case HTTP_NOT_IMPLEMENTED: 
            return HTTP_REASON_NOT_IMPLEMENTED;
      case HTTP_BAD_GATEWAY: 
            return HTTP_REASON_BAD_GATEWAY;
      case HTTP_SERVICE_UNAVAILABLE:
            return HTTP_REASON_SERVICE_UNAVAILABLE;
      case HTTP_GATEWAY_TIMEOUT: 
            return HTTP_REASON_GATEWAY_TIMEOUT;
      case HTTP_VERSION_NOT_SUPPORTED: 
            return HTTP_REASON_VERSION_NOT_SUPPORTED;
      default: 
            return HTTP_REASON_UNKNOWN;
      }
}


} } // namespace Poco::Net

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