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
|
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include <string.h>
#include <boost/algorithm/string/predicate.hpp>
#include <boost/utility/string_ref.hpp>
#include "civetweb/civetweb.h"
#include "rgw_civetweb.h"
#define dout_subsys ceph_subsys_rgw
size_t RGWCivetWeb::write_data(const char *buf, size_t len)
{
const int ret = mg_write(conn, buf, len);
if (ret == 0) {
/* didn't send anything, error out */
throw RGWRestfulIOEngine::Exception(EIO, std::system_category());
} else if (ret < 0) {
throw RGWRestfulIOEngine::Exception(-ret, std::system_category());
}
return ret;
}
RGWCivetWeb::RGWCivetWeb(mg_connection* const conn, const int port)
: conn(conn),
port(port),
explicit_keepalive(false),
explicit_conn_close(false)
{
}
size_t RGWCivetWeb::read_data(char *buf, size_t len)
{
const int ret = mg_read(conn, buf, len);
if (ret < 0) {
throw RGWRestfulIOEngine::Exception(-ret, std::system_category());
}
return ret;
}
void RGWCivetWeb::flush()
{
}
int RGWCivetWeb::complete_request()
{
return 0;
}
void RGWCivetWeb::init_env(CephContext *cct)
{
env.init(cct);
struct mg_request_info* const info = mg_get_request_info(conn);
if (! info) {
return;
}
for (int i = 0; i < info->num_headers; i++) {
struct mg_request_info::mg_header* const header = &info->http_headers[i];
const boost::string_ref name(header->name);
const auto& value = header->value;
if (boost::algorithm::iequals(name, "content-length")) {
env.set("CONTENT_LENGTH", value);
continue;
}
if (boost::algorithm::iequals(name, "content-type")) {
env.set("CONTENT_TYPE", value);
continue;
}
if (boost::algorithm::iequals(name, "connection")) {
explicit_keepalive = boost::algorithm::iequals(value, "keep-alive");
explicit_conn_close = boost::algorithm::iequals(value, "close");
}
static const boost::string_ref HTTP_{"HTTP_"};
char buf[name.size() + HTTP_.size() + 1];
auto dest = std::copy(std::begin(HTTP_), std::end(HTTP_), buf);
for (auto src = name.begin(); src != name.end(); ++src, ++dest) {
if (*src == '-') {
*dest = '_';
} else {
*dest = std::toupper(*src);
}
}
*dest = '\0';
env.set(buf, value);
}
env.set("REQUEST_METHOD", info->request_method);
env.set("REQUEST_URI", info->uri);
env.set("SCRIPT_URI", info->uri); /* FIXME */
if (info->query_string) {
env.set("QUERY_STRING", info->query_string);
}
if (info->remote_user) {
env.set("REMOTE_USER", info->remote_user);
}
char port_buf[16];
snprintf(port_buf, sizeof(port_buf), "%d", port);
env.set("SERVER_PORT", port_buf);
if (info->is_ssl) {
if (port == 0) {
strcpy(port_buf,"443");
}
env.set("SERVER_PORT_SECURE", port_buf);
}
}
template <class... Args>
static inline size_t safe_mg_printf(Args&&... args)
{
const int ret = mg_printf(std::forward<Args>(args)...);
if (ret == 0) {
/* didn't send anything, error out */
throw RGWRestfulIOEngine::Exception(EIO, std::system_category());
} else if (ret < 0) {
throw RGWRestfulIOEngine::Exception(-ret, std::system_category());
}
return static_cast<size_t>(ret);
}
size_t RGWCivetWeb::send_status(int status, const char *status_name)
{
mg_set_http_status(conn, status);
return safe_mg_printf(conn, "HTTP/1.1 %d %s\r\n", status,
status_name ? status_name : "");
}
size_t RGWCivetWeb::send_100_continue()
{
const char HTTTP_100_CONTINUE[] = "HTTP/1.1 100 CONTINUE\r\n\r\n";
return write_data(HTTTP_100_CONTINUE, sizeof(HTTTP_100_CONTINUE) - 1);
}
size_t RGWCivetWeb::send_header(const boost::string_ref& name,
const boost::string_ref& value)
{
return safe_mg_printf(conn, "%.*s: %.*s\r\n", name.length(), name.data(),
value.length(), value.data());
}
size_t RGWCivetWeb::dump_date_header()
{
char timestr[TIME_BUF_SIZE];
const time_t gtime = time(nullptr);
struct tm result;
struct tm const* const tmp = gmtime_r(>ime, &result);
if (nullptr == tmp) {
return 0;
}
if (! strftime(timestr, sizeof(timestr),
"Date: %a, %d %b %Y %H:%M:%S %Z\r\n", tmp)) {
return 0;
}
return write_data(timestr, strlen(timestr));
}
size_t RGWCivetWeb::complete_header()
{
size_t sent = dump_date_header();
if (explicit_keepalive) {
constexpr char CONN_KEEP_ALIVE[] = "Connection: Keep-Alive\r\n";
sent += write_data(CONN_KEEP_ALIVE, sizeof(CONN_KEEP_ALIVE) - 1);
} else if (explicit_conn_close) {
constexpr char CONN_KEEP_CLOSE[] = "Connection: close\r\n";
sent += write_data(CONN_KEEP_CLOSE, sizeof(CONN_KEEP_CLOSE) - 1);
}
constexpr char HEADER_END[] = "\r\n";
return sent + write_data(HEADER_END, sizeof(HEADER_END) - 1);
}
size_t RGWCivetWeb::send_content_length(uint64_t len)
{
return safe_mg_printf(conn, "Content-Length: %" PRIu64 "\r\n", len);
}
|
