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http_request.cpp
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314 lines (252 loc) · 8.04 KB
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/*
This file is part of libhttpserver
Copyright (C) 2011-2019 Sebastiano Merlino
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
USA
*/
#include "http_utils.hpp"
#include "http_request.hpp"
#include "string_utilities.hpp"
#include <iostream>
using namespace std;
namespace httpserver
{
const std::string http_request::EMPTY = "";
struct arguments_accumulator
{
unescaper_ptr unescaper;
std::map<std::string, std::string, http::arg_comparator>* arguments;
};
void http_request::set_method(const std::string& method)
{
this->method = string_utilities::to_upper_copy(method);
}
bool http_request::check_digest_auth(
const std::string& realm,
const std::string& password,
int nonce_timeout,
bool& reload_nonce
) const
{
std::string digested_user = get_digested_user();
int val = MHD_digest_auth_check(
underlying_connection,
realm.c_str(),
digested_user.c_str(),
password.c_str(),
nonce_timeout
);
if(val == MHD_INVALID_NONCE)
{
reload_nonce = true;
return false;
}
else if(val == MHD_NO)
{
reload_nonce = false;
return false;
}
reload_nonce = false;
return true;
}
const std::string http_request::get_connection_value(const std::string& key, enum MHD_ValueKind kind) const
{
const char* header_c = MHD_lookup_connection_value(
this->underlying_connection,
kind,
key.c_str()
);
if (header_c == NULL) return EMPTY;
return header_c;
}
int http_request::build_request_header(
void *cls,
enum MHD_ValueKind kind,
const char *key,
const char *value
)
{
std::map<std::string, std::string, http::header_comparator>* dhr = static_cast<std::map<std::string, std::string, http::header_comparator>*>(cls);
(*dhr)[key] = value;
return MHD_YES;
}
const std::map<std::string, std::string, http::header_comparator> http_request::get_headerlike_values(enum MHD_ValueKind kind) const
{
std::map<std::string, std::string, http::header_comparator> headers;
MHD_get_connection_values(
this->underlying_connection,
kind,
&build_request_header,
(void*) &headers
);
return headers;
}
const std::string http_request::get_header(const std::string& key) const
{
return get_connection_value(key, MHD_HEADER_KIND);
}
const std::map<std::string, std::string, http::header_comparator> http_request::get_headers() const
{
return get_headerlike_values(MHD_HEADER_KIND);
}
const std::string http_request::get_footer(const std::string& key) const
{
return get_connection_value(key, MHD_FOOTER_KIND);
}
const std::map<std::string, std::string, http::header_comparator> http_request::get_footers() const
{
return get_headerlike_values(MHD_FOOTER_KIND);
}
const std::string http_request::get_cookie(const std::string& key) const
{
return get_connection_value(key, MHD_COOKIE_KIND);
}
const std::map<std::string, std::string, http::header_comparator> http_request::get_cookies() const
{
return get_headerlike_values(MHD_COOKIE_KIND);
}
const std::string http_request::get_arg(const std::string& key) const
{
std::map<std::string, std::string>::const_iterator it = this->args.find(key);
if(it != this->args.end())
{
return it->second;
}
return get_connection_value(key, MHD_GET_ARGUMENT_KIND);
}
const std::map<std::string, std::string, http::arg_comparator> http_request::get_args() const
{
std::map<std::string, std::string, http::arg_comparator> arguments;
arguments.insert(this->args.begin(), this->args.end());
arguments_accumulator aa;
aa.unescaper = this->unescaper;
aa.arguments = &arguments;
MHD_get_connection_values(
this->underlying_connection,
MHD_GET_ARGUMENT_KIND,
&build_request_args,
(void*) &aa
);
return arguments;
}
const std::string http_request::get_querystring() const
{
std::string querystring = "";
MHD_get_connection_values(
this->underlying_connection,
MHD_GET_ARGUMENT_KIND,
&build_request_querystring,
(void*) &querystring
);
return querystring;
}
int http_request::build_request_args(
void *cls,
enum MHD_ValueKind kind,
const char *key,
const char *arg_value
)
{
arguments_accumulator* aa = static_cast<arguments_accumulator*>(cls);
std::string value = ((arg_value == NULL) ? "" : arg_value);
http::base_unescaper(value, aa->unescaper);
(*aa->arguments)[key] = value;
return MHD_YES;
}
int http_request::build_request_querystring(
void *cls,
enum MHD_ValueKind kind,
const char *key,
const char *arg_value
)
{
std::string* querystring = static_cast<std::string*>(cls);
std::string value = ((arg_value == NULL) ? "" : arg_value);
{
char buf[std::string(key).size() + value.size() + 3];
if(*querystring == "")
{
snprintf(buf, sizeof buf, "?%s=%s", key, value.c_str());
*querystring = buf;
}
else
{
snprintf(buf, sizeof buf, "&%s=%s", key, value.c_str());
*querystring += string(buf);
}
}
return MHD_YES;
}
const std::string http_request::get_user() const
{
char* username = 0x0;
char* password = 0x0;
username = MHD_basic_auth_get_username_password(underlying_connection, &password);
if (password != 0x0) free(password);
std::string user;
if (username != 0x0) user = username;
free(username);
return user;
}
const std::string http_request::get_pass() const
{
char* username = 0x0;
char* password = 0x0;
username = MHD_basic_auth_get_username_password(underlying_connection, &password);
if (username != 0x0) free(username);
std::string pass;
if (password != 0x0) pass = password;
free(password);
return pass;
}
const std::string http_request::get_digested_user() const
{
char* digested_user_c = 0x0;
digested_user_c = MHD_digest_auth_get_username(underlying_connection);
std::string digested_user = EMPTY;
if (digested_user_c != 0x0)
{
digested_user = digested_user_c;
free(digested_user_c);
}
return digested_user;
}
const std::string http_request::get_requestor() const
{
const MHD_ConnectionInfo * conninfo = MHD_get_connection_info(
underlying_connection,
MHD_CONNECTION_INFO_CLIENT_ADDRESS
);
return http::get_ip_str(conninfo->client_addr);
}
unsigned short http_request::get_requestor_port() const
{
const MHD_ConnectionInfo * conninfo = MHD_get_connection_info(
underlying_connection,
MHD_CONNECTION_INFO_CLIENT_ADDRESS
);
return http::get_port(conninfo->client_addr);
}
std::ostream &operator<< (std::ostream &os, const http_request &r)
{
os << r.get_method() << " Request [user:\"" << r.get_user() << "\" pass:\"" << r.get_pass() << "\"] path:\""
<< r.get_path() << "\"" << std::endl;
http::dump_header_map(os,"Headers",r.get_headers());
http::dump_header_map(os,"Footers",r.get_footers());
http::dump_header_map(os,"Cookies",r.get_cookies());
http::dump_arg_map(os,"Query Args",r.get_args());
os << " Version [ " << r.get_version() << " ] Requestor [ " << r.get_requestor()
<< " ] Port [ " << r.get_requestor_port() << " ]" << std::endl;
return os;
}
}