120 lines
3.5 KiB
C++
120 lines
3.5 KiB
C++
/* XMRig
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* Copyright 2010 Jeff Garzik <jgarzik@pobox.com>
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* Copyright 2012-2014 pooler <pooler@litecoinpool.org>
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* Copyright 2014 Lucas Jones <https://github.com/lucasjones>
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* Copyright 2014-2016 Wolf9466 <https://github.com/OhGodAPet>
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* Copyright 2016 Jay D Dee <jayddee246@gmail.com>
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* Copyright 2016-2017 XMRig <support@xmrig.com>
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*
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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 General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <microhttpd.h>
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#include <string.h>
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#include "api/Api.h"
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#include "api/Httpd.h"
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#include "log/Log.h"
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static const char k500 [] = "{\"error\":\"INTERNAL_SERVER_ERROR\"}";
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static const size_t k500Size = sizeof(k500) - 1;
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Httpd::Httpd(int port, const char *accessToken) :
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m_accessToken(accessToken),
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m_port(port),
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m_daemon(nullptr)
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{
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}
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bool Httpd::start()
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{
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if (!m_port) {
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return false;
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}
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m_daemon = MHD_start_daemon(MHD_USE_SELECT_INTERNALLY, m_port, nullptr, nullptr, &Httpd::handler, this, MHD_OPTION_END);
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if (!m_daemon) {
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LOG_ERR("HTTP Daemon failed to start.");
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return false;
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}
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return true;
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}
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int Httpd::auth(const char *header)
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{
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if (!m_accessToken) {
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return MHD_HTTP_OK;
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}
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if (m_accessToken && !header) {
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return MHD_HTTP_UNAUTHORIZED;
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}
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const size_t size = strlen(header);
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if (size < 8 || strlen(m_accessToken) != size - 7 || memcmp("Bearer ", header, 7) != 0) {
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return MHD_HTTP_FORBIDDEN;
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}
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return strncmp(m_accessToken, header + 7, strlen(m_accessToken)) == 0 ? MHD_HTTP_OK : MHD_HTTP_FORBIDDEN;
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}
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int Httpd::done(MHD_Connection *connection, int status, MHD_Response *rsp)
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{
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if (!rsp) {
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rsp = MHD_create_response_from_buffer(0, nullptr, MHD_RESPMEM_PERSISTENT);
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}
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MHD_add_response_header(rsp, "Content-Type", "application/json");
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MHD_add_response_header(rsp, "Access-Control-Allow-Origin", "*");
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MHD_add_response_header(rsp, "Access-Control-Allow-Methods", "GET");
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MHD_add_response_header(rsp, "Access-Control-Allow-Headers", "Authorization");
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const int ret = MHD_queue_response(connection, status, rsp);
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MHD_destroy_response(rsp);
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return ret;
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}
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int Httpd::handler(void *cls, struct MHD_Connection *connection, const char *url, const char *method, const char *version, const char *upload_data, size_t *upload_data_size, void **con_cls)
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{
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if (strcmp(method, "OPTIONS") == 0) {
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return done(connection, MHD_HTTP_OK, nullptr);
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}
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if (strcmp(method, "GET") != 0) {
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return MHD_NO;
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}
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int status = static_cast<Httpd*>(cls)->auth(MHD_lookup_connection_value(connection, MHD_HEADER_KIND, "Authorization"));
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if (status != MHD_HTTP_OK) {
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return done(connection, status, nullptr);
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}
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char *buf = Api::get(url, &status);
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if (buf == nullptr) {
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return MHD_NO;
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}
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MHD_Response *rsp = MHD_create_response_from_buffer(strlen(buf), (void*) buf, MHD_RESPMEM_MUST_FREE);
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return done(connection, status, rsp);
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}
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