blob: b7844bacb859dd50d75bddfe1a0ed8b6c67400de (
plain)
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
|
#pragma once
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/constants.hpp>
#include <boost/algorithm/string/split.hpp>
#include <boost/iterator/iterator_facade.hpp>
#include <boost/type_index/type_index_facade.hpp>
#include <cctype>
#include <iomanip>
#include <ostream>
#include <string>
#include <string_view>
#include <vector>
// IWYU pragma: no_include <ctype.h>
// IWYU pragma: no_include <boost/algorithm/string/detail/classification.hpp>
namespace http_helpers
{
inline std::vector<std::string> parseAccept(std::string_view header)
{
std::vector<std::string> encodings;
// chrome currently sends 6 accepts headers, firefox sends 4.
encodings.reserve(6);
boost::split(encodings, header, boost::is_any_of(", "),
boost::token_compress_on);
return encodings;
}
inline bool requestPrefersHtml(std::string_view header)
{
for (const std::string& encoding : parseAccept(header))
{
if (encoding == "text/html")
{
return true;
}
if (encoding == "application/json")
{
return false;
}
}
return false;
}
inline bool isOctetAccepted(std::string_view header)
{
for (std::string_view encoding : parseAccept(header))
{
// ignore any q-factor weighting (;q=)
std::size_t separator = encoding.find(";q=");
if (separator != std::string_view::npos)
{
encoding = encoding.substr(0, separator);
}
if (encoding == "*/*" || encoding == "application/octet-stream")
{
return true;
}
}
return false;
}
inline std::string urlEncode(const std::string_view value)
{
std::ostringstream escaped;
escaped.fill('0');
escaped << std::hex;
for (const char c : value)
{
// Keep alphanumeric and other accepted characters intact
if ((isalnum(c) != 0) || c == '-' || c == '_' || c == '.' || c == '~')
{
escaped << c;
continue;
}
// Any other characters are percent-encoded
escaped << std::uppercase;
escaped << '%' << std::setw(2)
<< static_cast<int>(static_cast<unsigned char>(c));
escaped << std::nouppercase;
}
return escaped.str();
}
} // namespace http_helpers
|
