Repository navigation
Expand file tree
/
Copy pathhttp_request.cpp
More file actions
312 lines (241 loc) · 9.92 KB
/
Copy pathhttp_request.cpp
File metadata and controls
312 lines (241 loc) · 9.92 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
/*
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 "httpserver/http_request.hpp"
#include <stdio.h>
#include <stdlib.h>
#include <iostream>
#include "httpserver/http_utils.hpp"
#include "httpserver/string_utilities.hpp"
namespace httpserver {
const char http_request::EMPTY[] = "";
struct arguments_accumulator {
unescaper_ptr unescaper;
std::map<std::string, std::vector<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_view digested_user = get_digested_user();
int val = MHD_digest_auth_check(underlying_connection, realm.c_str(), digested_user.data(), 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;
}
std::string_view http_request::get_connection_value(std::string_view key, enum MHD_ValueKind kind) const {
const char* header_c = MHD_lookup_connection_value(underlying_connection, kind, key.data());
if (header_c == nullptr) return EMPTY;
return header_c;
}
MHD_Result http_request::build_request_header(void *cls, enum MHD_ValueKind kind, const char *key, const char *value) {
// Parameters needed to respect MHD interface, but not used in the implementation.
std::ignore = kind;
http::header_view_map* dhr = static_cast<http::header_view_map*>(cls);
(*dhr)[key] = value;
return MHD_YES;
}
const http::header_view_map http_request::get_headerlike_values(enum MHD_ValueKind kind) const {
http::header_view_map headers;
MHD_get_connection_values(underlying_connection, kind, &build_request_header, reinterpret_cast<void*>(&headers));
return headers;
}
std::string_view http_request::get_header(std::string_view key) const {
return get_connection_value(key, MHD_HEADER_KIND);
}
const http::header_view_map http_request::get_headers() const {
return get_headerlike_values(MHD_HEADER_KIND);
}
std::string_view http_request::get_footer(std::string_view key) const {
return get_connection_value(key, MHD_FOOTER_KIND);
}
const http::header_view_map http_request::get_footers() const {
return get_headerlike_values(MHD_FOOTER_KIND);
}
std::string_view http_request::get_cookie(std::string_view key) const {
return get_connection_value(key, MHD_COOKIE_KIND);
}
const http::header_view_map http_request::get_cookies() const {
return get_headerlike_values(MHD_COOKIE_KIND);
}
void http_request::populate_args() const {
if (cache->args_populated) {
return;
}
arguments_accumulator aa;
aa.unescaper = unescaper;
aa.arguments = &cache->unescaped_args;
MHD_get_connection_values(underlying_connection, MHD_GET_ARGUMENT_KIND, &build_request_args, reinterpret_cast<void*>(&aa));
cache->args_populated = true;
}
http_arg_value http_request::get_arg(std::string_view key) const {
populate_args();
auto it = cache->unescaped_args.find(key);
if (it != cache->unescaped_args.end()) {
http_arg_value arg;
arg.values.reserve(it->second.size());
for (const auto& value : it->second) {
arg.values.push_back(value);
}
return arg;
}
return http_arg_value();
}
std::string_view http_request::get_arg_flat(std::string_view key) const {
auto const it = cache->unescaped_args.find(key);
if (it != cache->unescaped_args.end()) {
return it->second[0];
}
return get_connection_value(key, MHD_GET_ARGUMENT_KIND);
}
const http::arg_view_map http_request::get_args() const {
populate_args();
http::arg_view_map arguments;
for (const auto& [key, value] : cache->unescaped_args) {
auto& arg_values = arguments[key];
for (const auto& v : value) {
arg_values.values.push_back(v);
}
}
return arguments;
}
const std::map<std::string_view, std::string_view, http::arg_comparator> http_request::get_args_flat() const {
populate_args();
std::map<std::string_view, std::string_view, http::arg_comparator> ret;
for (const auto&[key, val] : cache->unescaped_args) {
ret[key] = val[0];
}
return ret;
}
http::file_info& http_request::get_or_create_file_info(const std::string& key, const std::string& upload_file_name) {
return files[key][upload_file_name];
}
std::string_view http_request::get_querystring() const {
if (!cache->querystring.empty()) {
return cache->querystring;
}
MHD_get_connection_values(underlying_connection, MHD_GET_ARGUMENT_KIND, &build_request_querystring, reinterpret_cast<void*>(&cache->querystring));
return cache->querystring;
}
MHD_Result http_request::build_request_args(void *cls, enum MHD_ValueKind kind, const char *key, const char *arg_value) {
// Parameters needed to respect MHD interface, but not used in the implementation.
std::ignore = kind;
arguments_accumulator* aa = static_cast<arguments_accumulator*>(cls);
std::string value = ((arg_value == nullptr) ? "" : arg_value);
http::base_unescaper(&value, aa->unescaper);
(*aa->arguments)[key].push_back(value);
return MHD_YES;
}
MHD_Result http_request::build_request_querystring(void *cls, enum MHD_ValueKind kind, const char *key_value, const char *arg_value) {
// Parameters needed to respect MHD interface, but not used in the implementation.
std::ignore = kind;
std::string* querystring = static_cast<std::string*>(cls);
std::string_view key = key_value;
std::string_view value = ((arg_value == nullptr) ? "" : arg_value);
// Limit to a single allocation.
querystring->reserve(querystring->size() + key.size() + value.size() + 3);
*querystring += ((*querystring == "") ? "?" : "&");
*querystring += key;
*querystring += "=";
*querystring += value;
return MHD_YES;
}
void http_request::fetch_user_pass() const {
char* password = nullptr;
auto* username = MHD_basic_auth_get_username_password(underlying_connection, &password);
if (username != nullptr) {
cache->username = username;
MHD_free(username);
}
if (password != nullptr) {
cache->password = password;
MHD_free(password);
}
}
std::string_view http_request::get_user() const {
if (!cache->username.empty()) {
return cache->username;
}
fetch_user_pass();
return cache->username;
}
std::string_view http_request::get_pass() const {
if (!cache->password.empty()) {
return cache->password;
}
fetch_user_pass();
return cache->password;
}
std::string_view http_request::get_digested_user() const {
if (!cache->digested_user.empty()) {
return cache->digested_user;
}
char* digested_user_c = MHD_digest_auth_get_username(underlying_connection);
cache->digested_user = EMPTY;
if (digested_user_c != nullptr) {
cache->digested_user = digested_user_c;
free(digested_user_c);
}
return cache->digested_user;
}
#ifdef HAVE_GNUTLS
bool http_request::has_tls_session() const {
const MHD_ConnectionInfo * conninfo = MHD_get_connection_info(underlying_connection, MHD_CONNECTION_INFO_GNUTLS_SESSION);
return (conninfo != nullptr);
}
gnutls_session_t http_request::get_tls_session() const {
const MHD_ConnectionInfo * conninfo = MHD_get_connection_info(underlying_connection, MHD_CONNECTION_INFO_GNUTLS_SESSION);
return static_cast<gnutls_session_t>(conninfo->tls_session);
}
#endif // HAVE_GNUTLS
std::string_view http_request::get_requestor() const {
if (!cache->requestor_ip.empty()) {
return cache->requestor_ip;
}
const MHD_ConnectionInfo * conninfo = MHD_get_connection_info(underlying_connection, MHD_CONNECTION_INFO_CLIENT_ADDRESS);
cache->requestor_ip = http::get_ip_str(conninfo->client_addr);
return cache->requestor_ip;
}
uint16_t 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;
}
http_request::~http_request() {
for ( const auto &file_key : get_files() ) {
for ( const auto &files : file_key.second ) {
// C++17 has std::filesystem::remove()
remove(files.second.get_file_system_file_name().c_str());
}
}
}
} // namespace httpserver