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
|
// Copyright 2010 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/base/proxy_server.h"
#include <stdint.h>
#include <ostream>
#include <string>
#include "base/check_op.h"
#include "base/numerics/safe_conversions.h"
#include "base/strings/strcat.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_piece.h"
#include "net/base/proxy_string_util.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
#include "url/third_party/mozilla/url_parse.h"
#include "url/url_canon.h"
#include "url/url_canon_stdstring.h"
namespace net {
ProxyServer::ProxyServer(Scheme scheme, const HostPortPair& host_port_pair)
: scheme_(scheme), host_port_pair_(host_port_pair) {
if (scheme_ == SCHEME_DIRECT || scheme_ == SCHEME_INVALID) {
// |host_port_pair| isn't relevant for these special schemes, so none should
// have been specified. It is important for this to be consistent since we
// do raw field comparisons in the equality and comparison functions.
DCHECK(host_port_pair.Equals(HostPortPair()));
host_port_pair_ = HostPortPair();
}
}
// static
ProxyServer ProxyServer::FromSchemeHostAndPort(Scheme scheme,
base::StringPiece host,
base::StringPiece port_str) {
// Create INVALID proxies directly using `ProxyServer()`.
DCHECK_NE(scheme, SCHEME_INVALID);
// Create DIRECT proxies directly using `Direct()`.
DCHECK_NE(scheme, SCHEME_DIRECT);
int port_number =
url::ParsePort(port_str.data(), url::Component(0, port_str.size()));
if (port_number == url::PORT_UNSPECIFIED)
return FromSchemeHostAndPort(scheme, host, absl::nullopt);
if (port_number == url::PORT_INVALID)
return ProxyServer();
DCHECK(base::IsValueInRangeForNumericType<uint16_t>(port_number));
return FromSchemeHostAndPort(scheme, host,
static_cast<uint16_t>(port_number));
}
// static
ProxyServer ProxyServer::FromSchemeHostAndPort(Scheme scheme,
base::StringPiece host,
absl::optional<uint16_t> port) {
// Create INVALID proxies directly using `ProxyServer()`.
DCHECK_NE(scheme, SCHEME_INVALID);
// Create DIRECT proxies directly using `Direct()`.
DCHECK_NE(scheme, SCHEME_DIRECT);
// Add brackets to IPv6 literals if missing, as required by url
// canonicalization.
std::string bracketed_host;
if (!host.empty() && host.front() != '[' &&
host.find(":") != base::StringPiece::npos) {
bracketed_host = base::StrCat({"[", host, "]"});
host = bracketed_host;
}
std::string canonicalized_host;
url::StdStringCanonOutput canonicalized_output(&canonicalized_host);
url::Component component_output;
if (!url::CanonicalizeHost(host.data(), url::Component(0, host.size()),
&canonicalized_output, &component_output)) {
return ProxyServer();
}
if (!component_output.is_nonempty())
return ProxyServer();
canonicalized_output.Complete();
// Remove IPv6 literal bracketing, as required by HostPortPair.
base::StringPiece unbracketed_host = canonicalized_host;
if (canonicalized_host.front() == '[' && canonicalized_host.back() == ']')
unbracketed_host = unbracketed_host.substr(1, unbracketed_host.size() - 2);
// A uint16_t port is always valid and canonicalized.
uint16_t fixed_port = port.value_or(GetDefaultPortForScheme(scheme));
return ProxyServer(scheme, HostPortPair(unbracketed_host, fixed_port));
}
std::string ProxyServer::GetHost() const {
return host_port_pair().HostForURL();
}
uint16_t ProxyServer::GetPort() const {
return host_port_pair().port();
}
const HostPortPair& ProxyServer::host_port_pair() const {
// Doesn't make sense to call this if the URI scheme doesn't
// have concept of a host.
DCHECK(is_valid());
DCHECK(!is_direct());
return host_port_pair_;
}
// static
int ProxyServer::GetDefaultPortForScheme(Scheme scheme) {
switch (scheme) {
case SCHEME_HTTP:
return 80;
case SCHEME_SOCKS4:
case SCHEME_SOCKS5:
return 1080;
case SCHEME_HTTPS:
case SCHEME_QUIC:
return 443;
case SCHEME_INVALID:
case SCHEME_DIRECT:
break;
}
return -1;
}
std::ostream& operator<<(std::ostream& os, const ProxyServer& proxy_server) {
return os << ProxyServerToPacResultElement(proxy_server);
}
} // namespace net
|
