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
|
// file : libbutl/curl.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#ifndef __cpp_modules
#include <libbutl/curl.mxx>
#endif
// C includes.
#ifndef __cpp_lib_modules
#include <string>
#include <utility> // move()
#include <exception> // invalid_argument
#endif
// Other includes.
#ifdef __cpp_modules
module butl.curl;
// Only imports additional to interface.
#ifdef __clang__
#ifdef __cpp_lib_modules
import std.core;
#endif
import butl.path;
import butl.process;
import butl.fdstream;
import butl.small_vector;
#endif
import butl.utility; // casecmp()
#else
#include <libbutl/utility.mxx>
#endif
using namespace std;
namespace butl
{
int curl::
map_in (nullfd_t, method_proto mp, io_data& d)
{
switch (mp)
{
case ftp_put:
throw invalid_argument ("no input specified for PUT method");
case http_post:
throw invalid_argument ("no input specified for POST method");
case ftp_get:
case http_get:
{
d.pipe.in = fdnull (); // /dev/null
return d.pipe.in.get ();
}
}
return -1;
}
int curl::
map_in (const path& f, method_proto mp, io_data& d)
{
switch (mp)
{
case ftp_put:
case http_post:
{
if (mp == ftp_put)
{
d.options.push_back ("--upload-file");
d.options.push_back (f.string ().c_str ());
}
else
{
d.storage = '@' + f.string ();
d.options.push_back ("--data-binary");
d.options.push_back (d.storage.c_str ());
}
if (f.string () == "-")
{
d.pipe = fdopen_pipe (fdopen_mode::binary);
out.open (move (d.pipe.out));
}
else
d.pipe.in = fdnull (); // /dev/null
return d.pipe.in.get ();
}
case ftp_get:
case http_get:
{
throw invalid_argument ("file input specified for GET method");
}
}
return -1;
}
int curl::
map_out (nullfd_t, method_proto mp, io_data& d)
{
switch (mp)
{
case ftp_get:
case http_get:
throw invalid_argument ("no output specified for GET method");
case ftp_put:
case http_post: // May or may not produce output.
{
d.pipe.out = fdnull ();
return d.pipe.out.get (); // /dev/null
}
}
return -1;
}
int curl::
map_out (const path& f, method_proto mp, io_data& d)
{
switch (mp)
{
case ftp_get:
case http_get:
case http_post:
{
if (f.string () == "-")
{
// Note: no need for any options, curl writes to stdout by default.
//
d.pipe = fdopen_pipe (fdopen_mode::binary);
in.open (move (d.pipe.in));
}
else
{
d.options.push_back ("-o");
d.options.push_back (f.string ().c_str ());
d.pipe.out = fdnull (); // /dev/null
}
return d.pipe.out.get ();
}
case ftp_put:
{
throw invalid_argument ("file output specified for PUT method");
}
}
return -1;
}
curl::method_proto curl::
translate (method_type m, const string& u, method_proto_options& o)
{
size_t n (u.find ("://"));
if (n == string::npos)
throw invalid_argument ("no protocol in URL");
if (casecmp (u, "ftp", n) == 0 ||
casecmp (u, "tftp", n) == 0)
{
switch (m)
{
case method_type::get: return method_proto::ftp_get;
case method_type::put: return method_proto::ftp_put;
case method_type::post:
throw invalid_argument ("POST method with FTP protocol");
}
}
else if (casecmp (u, "http", n) == 0 ||
casecmp (u, "https", n) == 0)
{
o.push_back ("--fail"); // Fail on HTTP errors (e.g., 404).
o.push_back ("--location"); // Follow redirects.
switch (m)
{
case method_type::get: return method_proto::http_get;
case method_type::post: return method_proto::http_post;
case method_type::put:
throw invalid_argument ("PUT method with HTTP protocol");
}
}
throw invalid_argument ("unsupported protocol");
}
}
|
