ceph/src/seastar/include/seastar/http/request.hh

   1 /*
   2  * This file is open source software, licensed to you under the terms
   3  * of the Apache License, Version 2.0 (the "License").  See the NOTICE file
   4  * distributed with this work for additional information regarding copyright
   5  * ownership.  You may not use this file except in compliance with the License.
   6  *
   7  * You may obtain a copy of the License at
   8  *
   9  *   http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing,
  12  * software distributed under the License is distributed on an
  13  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  14  * KIND, either express or implied.  See the License for the
  15  * specific language governing permissions and limitations
  16  * under the License.
  17  */
  18 /*
  19  * Copyright 2015 Cloudius Systems
  20  */
  21
  22 //
  23 // request.hpp
  24 // ~~~~~~~~~~~
  25 //
  26 // Copyright (c) 2003-2013 Christopher M. Kohlhoff (chris at kohlhoff dot com)
  27 //
  28 // Distributed under the Boost Software License, Version 1.0. (See accompanying
  29 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  30 //
  31 #pragma once
  32
  33 #include <seastar/core/sstring.hh>
  34 #include <string>
  35 #include <vector>
  36 #include <strings.h>
  37 #include <seastar/http/common.hh>
  38
  39 namespace seastar {
  40
  41 namespace httpd {
  42 class connection;
  43
  44 /**
  45  * A request received from a client.
  46  */
  47 struct request {
  48     enum class ctclass
  49         : char {
  50             other, multipart, app_x_www_urlencoded,
  51     };
  52
  53     struct case_insensitive_cmp {
  54         bool operator()(const sstring& s1, const sstring& s2) const {
  55             return std::equal(s1.begin(), s1.end(), s2.begin(), s2.end(),
  56                     [](char a, char b) { return ::tolower(a) == ::tolower(b); });
  57         }
  58     };
  59
  60     struct case_insensitive_hash {
  61         size_t operator()(sstring s) const {
  62             std::transform(s.begin(), s.end(), s.begin(), ::tolower);
  63             return std::hash<sstring>()(s);
  64         }
  65     };
  66
  67     sstring _method;
  68     sstring _url;
  69     sstring _version;
  70     int http_version_major;
  71     int http_version_minor;
  72     ctclass content_type_class;
  73     size_t content_length = 0;
  74     std::unordered_map<sstring, sstring, case_insensitive_hash, case_insensitive_cmp> _headers;
  75     std::unordered_map<sstring, sstring> query_parameters;
  76     connection* connection_ptr;
  77     parameters param;
  78     sstring content;
  79     sstring protocol_name = "http";
  80
  81     /**
  82      * Search for the first header of a given name
  83      * @param name the header name
  84      * @return a pointer to the header value, if it exists or empty string
  85      */
  86     sstring get_header(const sstring& name) const {
  87         auto res = _headers.find(name);
  88         if (res == _headers.end()) {
  89             return "";
  90         }
  91         return res->second;
  92     }
  93
  94     /**
  95      * Search for the first header of a given name
  96      * @param name the header name
  97      * @return a pointer to the header value, if it exists or empty string
  98      */
  99     sstring get_query_param(const sstring& name) const {
 100         auto res = query_parameters.find(name);
 101         if (res == query_parameters.end()) {
 102             return "";
 103         }
 104         return res->second;
 105     }
 106
 107     /**
 108      * Get the request protocol name. Can be either "http" or "https".
 109      */
 110     sstring get_protocol_name() const {
 111         return protocol_name;
 112     }
 113
 114     /**
 115      * Get the request url.
 116      * @return the request url
 117      */
 118     sstring get_url() const {
 119         return get_protocol_name() + "://" + get_header("Host") + _url;
 120     }
 121
 122     bool is_multi_part() const {
 123         return content_type_class == ctclass::multipart;
 124     }
 125
 126     bool is_form_post() const {
 127         return content_type_class == ctclass::app_x_www_urlencoded;
 128     }
 129
 130 };
 131
 132 } // namespace httpd
 133
 134 }