133 lines
3.5 KiB
C++
133 lines
3.5 KiB
C++
/*
|
|
|
|
Copyright (c) 2008, Arvid Norberg
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
* Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
* 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.
|
|
* Neither the name of the author nor the names of its
|
|
contributors may be used to endorse or promote products derived
|
|
from this software without specific prior written permission.
|
|
|
|
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 "libtorrent/parse_url.hpp"
|
|
#include <algorithm>
|
|
|
|
namespace libtorrent
|
|
{
|
|
|
|
// returns protocol, auth, hostname, port, path, error
|
|
boost::tuple<std::string, std::string, std::string, int, std::string, char const*>
|
|
parse_url_components(std::string url)
|
|
{
|
|
std::string hostname; // hostname only
|
|
std::string auth; // user:pass
|
|
std::string protocol; // http or https for instance
|
|
char const* error = 0;
|
|
int port = 80;
|
|
|
|
std::string::iterator at;
|
|
std::string::iterator colon;
|
|
std::string::iterator port_pos;
|
|
|
|
// PARSE URL
|
|
std::string::iterator start = url.begin();
|
|
// remove white spaces in front of the url
|
|
while (start != url.end() && (*start == ' ' || *start == '\t'))
|
|
++start;
|
|
std::string::iterator end
|
|
= std::find(url.begin(), url.end(), ':');
|
|
protocol.assign(start, end);
|
|
|
|
if (protocol == "https") port = 443;
|
|
|
|
if (end == url.end())
|
|
{
|
|
error = "no protocol in url";
|
|
goto exit;
|
|
}
|
|
++end;
|
|
if (end == url.end() || *end != '/')
|
|
{
|
|
error = "incomplete protocol";
|
|
goto exit;
|
|
}
|
|
++end;
|
|
if (end == url.end() || *end != '/')
|
|
{
|
|
error = "incomplete protocol";
|
|
goto exit;
|
|
}
|
|
++end;
|
|
start = end;
|
|
|
|
at = std::find(start, url.end(), '@');
|
|
colon = std::find(start, url.end(), ':');
|
|
end = std::find(start, url.end(), '/');
|
|
|
|
if (at != url.end()
|
|
&& colon != url.end()
|
|
&& colon < at
|
|
&& at < end)
|
|
{
|
|
auth.assign(start, at);
|
|
start = at;
|
|
++start;
|
|
}
|
|
|
|
// this is for IPv6 addresses
|
|
if (start != url.end() && *start == '[')
|
|
{
|
|
port_pos = std::find(start, url.end(), ']');
|
|
if (port_pos == url.end())
|
|
{
|
|
error = "expected closing ']' for address";
|
|
goto exit;
|
|
}
|
|
port_pos = std::find(port_pos, url.end(), ':');
|
|
}
|
|
else
|
|
{
|
|
port_pos = std::find(start, url.end(), ':');
|
|
}
|
|
|
|
if (port_pos < end)
|
|
{
|
|
hostname.assign(start, port_pos);
|
|
++port_pos;
|
|
port = atoi(std::string(port_pos, end).c_str());
|
|
}
|
|
else
|
|
{
|
|
hostname.assign(start, end);
|
|
}
|
|
|
|
start = end;
|
|
exit:
|
|
return boost::make_tuple(protocol, auth, hostname, port
|
|
, std::string(start, url.end()), error);
|
|
}
|
|
|
|
}
|
|
|