mirror of
https://github.com/OpenVPN/openvpn3.git
synced 2024-09-20 20:13:05 +02:00
3fbe0a2701
Signed-off-by: David Sommerseth <davids@openvpn.net>
212 lines
5.2 KiB
C++
212 lines
5.2 KiB
C++
// OpenVPN -- An application to securely tunnel IP networks
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// over a single port, with support for SSL/TLS-based
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// session authentication and key exchange,
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// packet encryption, packet authentication, and
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// packet compression.
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//
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// Copyright (C) 2012-2020 OpenVPN Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License Version 3
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// as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program in the COPYING file.
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// If not, see <http://www.gnu.org/licenses/>.
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#ifndef OPENVPN_HTTP_URLPARM_H
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#define OPENVPN_HTTP_URLPARM_H
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#include <string>
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#include <sstream>
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#include <vector>
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#include <openvpn/common/number.hpp>
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#include <openvpn/http/urlencode.hpp>
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#include <openvpn/http/webexcept.hpp>
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#include <openvpn/common/string.hpp>
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namespace openvpn {
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namespace URL {
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OPENVPN_EXCEPTION(url_parameter_error);
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struct Parm
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{
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Parm() {}
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Parm(const std::string& name_arg, const std::string& value_arg)
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: name(name_arg), value(value_arg)
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{
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}
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std::string to_string() const
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{
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std::ostringstream out;
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out << name << '=' << value;
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return out.str();
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}
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std::string name;
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std::string value;
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};
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class ParmList : public std::vector<Parm>
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{
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public:
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ParmList(const std::string& uri)
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{
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try {
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const std::vector<std::string> req_parms = string::split(uri, '?', 1);
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request_ = req_parms[0];
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if (req_parms.size() == 2)
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{
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const std::vector<std::string> kv_list = string::split(req_parms[1], '&');
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for (auto &kvstr : kv_list)
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{
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const std::vector<std::string> kv = string::split(kvstr, '=', 1);
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Parm p;
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p.name = decode(kv[0]);
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if (kv.size() == 2)
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p.value = decode(kv[1]);
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push_back(std::move(p));
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}
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}
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}
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catch (const std::exception& e)
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{
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throw HTTP::WebException(HTTP::Status::BadRequest, e.what());
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}
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}
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const Parm* get(const std::string& key) const
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{
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for (auto &p : *this)
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{
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if (key == p.name)
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return &p;
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}
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return nullptr;
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}
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std::string get_value(const std::string& key) const
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{
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const Parm* p = get(key);
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if (p)
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return p->value;
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else
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return "";
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}
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const std::string& get_value_required(const std::string& key) const
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{
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const Parm* p = get(key);
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if (p)
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return p->value;
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else
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throw url_parameter_error(key + " : not found");
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}
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template <typename T>
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T get_num(const std::string& name, const std::string& short_name, const T default_value) const
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{
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const Parm* p = get(name);
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if (!p && !short_name.empty())
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p = get(short_name);
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if (p)
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return parse_number_throw<T>(p->value, name);
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else
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return default_value;
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}
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template <typename T>
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T get_num_required(const std::string& name, const std::string& short_name) const
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{
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const Parm* p = get(name);
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if (!p && !short_name.empty())
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p = get(short_name);
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if (!p)
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throw url_parameter_error(name + " : not found");
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return parse_number_throw<T>(p->value, name);
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}
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bool get_bool(const std::string& name, const std::string& short_name, const bool default_value) const
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{
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const Parm* p = get(name);
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if (!p && !short_name.empty())
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p = get(short_name);
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if (p)
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{
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if (p->value == "0")
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return false;
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else if (p->value == "1")
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return true;
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else
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throw url_parameter_error(name + ": parameter must be 0 or 1");
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}
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else
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return default_value;
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}
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std::string get_string(const std::string& name, const std::string& short_name) const
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{
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const Parm* p = get(name);
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if (!p && !short_name.empty())
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p = get(short_name);
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if (p)
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return p->value;
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else
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return "";
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}
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std::string get_string_required(const std::string& name, const std::string& short_name) const
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{
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const Parm* p = get(name);
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if (!p && !short_name.empty())
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p = get(short_name);
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if (!p)
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throw url_parameter_error(name + " : not found");
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return p->value;
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}
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std::string to_string() const
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{
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std::ostringstream out;
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for (size_t i = 0; i < size(); ++i)
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out << '[' << i << "] " << (*this)[i].to_string() << std::endl;
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return out.str();
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}
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std::string request(const bool remove_leading_slash) const
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{
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std::string ret = request_;
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if (remove_leading_slash)
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{
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if (ret.length() > 0 && ret[0] == '/')
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ret = ret.substr(1);
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else
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throw HTTP::WebException(HTTP::Status::BadRequest, "URI missing leading slash");
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}
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if (ret.empty())
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throw HTTP::WebException(HTTP::Status::BadRequest, "URI resource is empty");
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return ret;
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}
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const std::string& request() const
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{
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return request_;
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}
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private:
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std::string request_;
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};
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}
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}
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#endif
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