52e075963e
The standard response headers are now generated at a higher level. This reduces the scope of the HttpResponse class making it a leaner wrapper around a few simple variables, namely the JSON body of the response. The HttpRequest now exposes the Host header that the client sent. This allows resource relations to be real links that work without modification.
121 lines
3.5 KiB
C++
121 lines
3.5 KiB
C++
/*
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* Copyright (c) 2016 MariaDB Corporation Ab
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
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*
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* Change Date: 2019-07-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2 or later of the General
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* Public License.
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*/
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#include <maxscale/cppdefs.hh>
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#include <climits>
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#include <new>
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#include <microhttpd.h>
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#include <maxscale/atomic.h>
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#include <maxscale/debug.h>
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#include <maxscale/thread.h>
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#include <maxscale/utils.h>
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#include <maxscale/config.h>
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#include <maxscale/hk_heartbeat.h>
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#include "maxscale/admin.hh"
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#include "maxscale/resource.hh"
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static struct MHD_Daemon* http_daemon = NULL;
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int handle_client(void *cls,
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struct MHD_Connection *connection,
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const char *url,
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const char *method,
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const char *version,
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const char *upload_data,
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size_t *upload_data_size,
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void **con_cls)
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{
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const char *admin_user = config_get_global_options()->admin_user;
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const char *admin_pw = config_get_global_options()->admin_password;
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bool admin_auth = config_get_global_options()->admin_auth;
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char* pw = NULL;
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char* user = MHD_basic_auth_get_username_password(connection, &pw);
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if (admin_auth && (!user || !pw || strcmp(user, admin_user) || strcmp(pw, admin_pw)))
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{
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static char error_resp[] = "Access denied\r\n";
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struct MHD_Response *resp;
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resp = MHD_create_response_from_buffer(sizeof (error_resp) - 1, error_resp,
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MHD_RESPMEM_PERSISTENT);
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MHD_queue_basic_auth_fail_response(connection, "maxscale", resp);
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MHD_destroy_response(resp);
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return MHD_YES;
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}
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string verb(method);
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json_t* json = NULL;
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if (verb == "POST" || verb == "PUT" || verb == "PATCH")
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{
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json_error_t err = {};
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if ((json = json_loadb(upload_data, *upload_data_size, 0, &err)) == NULL)
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{
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return MHD_NO;
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}
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}
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HttpRequest request(connection, url, method, json);
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HttpResponse reply = resource_handle_request(request);
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string data;
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json_t* js = reply.get_response();
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if (js)
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{
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int flags = request.get_option("pretty") == "true" ? JSON_INDENT(4) : 0;
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data = mxs::json_dump(js, flags);
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}
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struct MHD_Response *response =
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MHD_create_response_from_buffer(data.size(), (void*)data.c_str(),
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MHD_RESPMEM_MUST_COPY);
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string http_date = http_get_date();
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MHD_add_response_header(response, "Date", http_date.c_str());
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// TODO: calculate modification times
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MHD_add_response_header(response, "Last-Modified", http_date.c_str());
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// This ETag is the base64 encoding of `not-yet-implemented`
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MHD_add_response_header(response, "ETag", "bm90LXlldC1pbXBsZW1lbnRlZAo");
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MHD_queue_response(connection, reply.get_code(), response);
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MHD_destroy_response(response);
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return MHD_YES;
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}
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bool mxs_admin_init()
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{
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http_daemon = MHD_start_daemon(MHD_USE_EPOLL_INTERNALLY | MHD_USE_DUAL_STACK,
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config_get_global_options()->admin_port,
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NULL, NULL,
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handle_client, NULL,
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MHD_OPTION_END);
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return http_daemon != NULL;
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}
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void mxs_admin_shutdown()
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{
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MHD_stop_daemon(http_daemon);
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}
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