uri.cpp

This software aims to create an applet and panel tools to manage a wireless interface card, such as

//
// URI.cpp
//
// $Id: //poco/Main/Foundation/src/URI.cpp#5 $
//
// Copyright (c) 2004, Guenter Obiltschnig/Applied Informatics.
// 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. Redistributions in any form must be accompanied by information on
//    how to obtain complete source code for this software and any
//    accompanying software that uses this software.  The source code
//    must either be included in the distribution or be available for no
//    more than the cost of distribution plus a nominal fee, and must be
//    freely redistributable under reasonable conditions.  For an
//    executable file, complete source code means the source code for all
//    modules it contains.  It does not include source code for modules or
//    files that typically accompany the major components of the operating
//    system on which the executable file runs.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "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.
//


#include "Foundation/URI.h"
#include "Foundation/NumberFormatter.h"
#include "Foundation/Exception.h"
#include "Foundation/String.h"
#include "Foundation/NumberParser.h"


Foundation_BEGIN


const std::string URI::RESERVED_PATH     = "?#";
const std::string URI::RESERVED_QUERY    = "#";
const std::string URI::RESERVED_FRAGMENT = "";
const std::string URI::ILLEGAL           = "%<>{}|\\\"^`";


URI::URI():
	_port(0)
{
}


URI::URI(const std::string& uri):
	_port(0)
{
	parse(uri);
}

	
URI::URI(const std::string& scheme, const std::string& path):
	_scheme(scheme),
	_port(0),
	_path(path)
{
	toLowerInPlace(_scheme);
	_port = getWellKnownPort();
}

	
URI::URI(const std::string& scheme, const std::string& authority, const std::string& path):
	_scheme(scheme),
	_path(path)
{
	toLowerInPlace(_scheme);
	std::string::const_iterator beg = authority.begin();
	std::string::const_iterator end = authority.end();
	parseAuthority(beg, end);
}


URI::URI(const std::string& scheme, const std::string& authority, const std::string& path, const std::string& query):
	_scheme(scheme),
	_path(path),
	_query(query)
{
	toLowerInPlace(_scheme);
	std::string::const_iterator beg = authority.begin();
	std::string::const_iterator end = authority.end();
	parseAuthority(beg, end);
}


URI::URI(const std::string& scheme, const std::string& authority, const std::string& path, const std::string& query, const std::string& fragment):
	_scheme(scheme),
	_path(path),
	_query(query),
	_fragment(fragment)
{
	toLowerInPlace(_scheme);
	std::string::const_iterator beg = authority.begin();
	std::string::const_iterator end = authority.end();
	parseAuthority(beg, end);
}


URI::URI(const URI& uri):
	_scheme(uri._scheme),
	_userInfo(uri._userInfo),
	_host(uri._host),
	_port(uri._port),
	_path(uri._path),
	_query(uri._query),
	_fragment(uri._fragment)
{
}

	
URI::URI(const URI& baseURI, const std::string& relativeURI):
	_scheme(baseURI._scheme),
	_userInfo(baseURI._userInfo),
	_host(baseURI._host),
	_port(baseURI._port),
	_path(baseURI._path),
	_query(baseURI._query),
	_fragment(baseURI._fragment)
{
	resolve(relativeURI);
}


URI::~URI()
{
}


URI& URI::operator = (const URI& uri)
{
	if (&uri != this)
	{
		_scheme   = uri._scheme;
		_userInfo = uri._userInfo;
		_host     = uri._host;
		_port     = uri._port;
		_path     = uri._path;
		_query    = uri._query;
		_fragment = uri._fragment;
	}
	return *this;
}

	
URI& URI::operator = (const std::string& uri)
{
	clear();
	parse(uri);
	return *this;
}


void URI::clear()
{
	_scheme.clear();
	_userInfo.clear();
	_host.clear();
	_port = 0;
	_path.clear();
	_query.clear();
	_fragment.clear();
}


std::string URI::toString() const
{
	std::string uri;
	if (isRelative())
	{
		encode(_path, RESERVED_PATH, uri);
	}
	else
	{
		uri = _scheme;
		uri += ':';
		std::string auth = getAuthority();
		if (!auth.empty() || _scheme == "file")
		{
			uri.append("//");
			uri.append(auth);
		}
		if (!_path.empty())
		{
			if (!auth.empty() && _path[0] != '/')
				uri += '/';
			encode(_path, RESERVED_PATH, uri);
		}
	}
	if (!_query.empty())
	{
		uri += '?';
		encode(_query, RESERVED_QUERY, uri);
	}
	if (!_fragment.empty())
	{
		uri += '#';
		encode(_fragment, RESERVED_FRAGMENT, uri);
	}
	return uri;
}


void URI::setScheme(const std::string& scheme)
{
	_scheme = scheme;
	toLowerInPlace(_scheme);
	if (_port == 0)
		_port = getWellKnownPort();
}

	
void URI::setUserInfo(const std::string& userInfo)
{
	_userInfo.clear();
	decode(userInfo, _userInfo);
}

	
void URI::setHost(const std::string& host)
{
	_host = host;
}


unsigned short URI::getPort() const
{
	if (_port == 0)
		return getWellKnownPort();
	else
		return _port;
}


void URI::setPort(unsigned short port)
{
	_port = port;
}

	
std::string URI::getAuthority() const
{
	std::string auth;
	if (!_userInfo.empty())
	{
		auth.append(_userInfo);
		auth += '@';
	}
	auth.append(_host);
	if (_port && !isWellKnownPort())
	{
		auth += ':';
		auth.append(NumberFormatter::format(_port));
	}
	return auth;
}

	
void URI::setAuthority(const std::string& authority)
{
	_userInfo.clear();
	_host.clear();
	_port = 0;
	std::string::const_iterator beg = authority.begin();
	std::string::const_iterator end = authority.end();
	parseAuthority(beg, end);
}

	
void URI::setPath(const std::string& path)
{
	_path.clear();
	decode(path, _path);
}

	
void URI::setQuery(const std::string& query)
{
	_query.clear();
	decode(query, _query);
}


void URI::setFragment(const std::string& fragment)
{
	_fragment.clear();
	decode(fragment, _fragment);
}

	
void URI::resolve(const std::string& relativeURI)
{
	URI parsedURI(relativeURI);
	resolve(parsedURI);
}


void URI::resolve(const URI& relativeURI)
{
	if (!relativeURI._scheme.empty())
	{
		_scheme   = relativeURI._scheme;
		_userInfo = relativeURI._userInfo;
		_host     = relativeURI._host;
		_port     = relativeURI._port;
		_path     = relativeURI._path;
		_query    = relativeURI._query;
		removeDotSegments();
	}
	else
	{
		if (!relativeURI._host.empty())
		{
			_userInfo = relativeURI._userInfo;
			_host     = relativeURI._host;
			_port     = relativeURI._port;
			_path     = relativeURI._path;
			_query    = relativeURI._query;
			removeDotSegments();
		}
		else
		{
			if (relativeURI._path.empty())
			{
				if (!relativeURI._query.empty())
					_query = relativeURI._query;
			}
			else
			{
				if (relativeURI._path[0] == '/')
				{
					_path = relativeURI._path;
					removeDotSegments();
				}
				else
				{
					mergePath(relativeURI._path);
				}
				_query = relativeURI._query;
			}
		}
	}
	_fragment = relativeURI._fragment;	
}


bool URI::isRelative() const
{
	return _scheme.empty();
}


bool URI::empty() const
{
	return _scheme.empty() && _host.empty() && _path.empty() && _query.empty() && _fragment.empty();
}

	
bool URI::operator == (const URI& uri) const
{
	return equals(uri);
}