1 // Copyright 2020 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "util/url.h"
6
7 #include <limits.h>
8
9 #include <utility>
10
11 #include "third_party/mozilla/url_parse.h"
12 #include "third_party/mozilla/url_parse_internal.h"
13
14 namespace openscreen {
15
Url(const std::string & source)16 Url::Url(const std::string& source) {
17 Parsed parsed;
18 Component scheme;
19 const char* url = source.c_str();
20 size_t length = source.size();
21 if (length > INT_MAX) {
22 return;
23 }
24 int url_length = static_cast<int>(length);
25
26 if (!ExtractScheme(url, url_length, &scheme)) {
27 return;
28 }
29
30 if (CompareSchemeComponent(url, scheme, kFileScheme) ||
31 CompareSchemeComponent(url, scheme, kFileSystemScheme) ||
32 CompareSchemeComponent(url, scheme, kMailtoScheme)) {
33 // NOTE: Special schemes that are unsupported.
34 return;
35 } else if (IsStandard(url, scheme)) {
36 ParseStandardURL(url, url_length, &parsed);
37 if (!parsed.host.is_valid()) {
38 return;
39 }
40 } else {
41 ParsePathURL(url, url_length, true, &parsed);
42 }
43
44 if (!parsed.scheme.is_nonempty()) {
45 return;
46 }
47 scheme_ = std::string(url + parsed.scheme.begin, url + parsed.scheme.end());
48
49 if (parsed.host.is_valid()) {
50 has_host_ = true;
51 host_ = std::string(url + parsed.host.begin, url + parsed.host.end());
52 }
53
54 if (parsed.port.is_nonempty()) {
55 int parse_result = ParsePort(url, parsed.port);
56 if (parse_result == PORT_INVALID) {
57 return;
58 } else if (parse_result >= 0) {
59 has_port_ = true;
60 port_ = parse_result;
61 }
62 }
63
64 if (parsed.path.is_nonempty()) {
65 has_path_ = true;
66 path_ = std::string(url + parsed.path.begin, url + parsed.path.end());
67 }
68
69 if (parsed.query.is_nonempty()) {
70 has_query_ = true;
71 query_ = std::string(url + parsed.query.begin, url + parsed.query.end());
72 }
73
74 is_valid_ = true;
75 }
76
77 Url::Url(const Url&) = default;
78
Url(Url && other)79 Url::Url(Url&& other) noexcept
80 : is_valid_(other.is_valid_),
81 has_host_(other.has_host_),
82 has_port_(other.has_port_),
83 has_path_(other.has_path_),
84 has_query_(other.has_query_),
85 scheme_(std::move(other.scheme_)),
86 host_(std::move(other.host_)),
87 port_(other.port_),
88 path_(std::move(other.path_)),
89 query_(std::move(other.query_)) {
90 other.is_valid_ = false;
91 }
92
93 Url::~Url() = default;
94
95 Url& Url::operator=(const Url&) = default;
96
operator =(Url && other)97 Url& Url::operator=(Url&& other) {
98 is_valid_ = other.is_valid_;
99 has_host_ = other.has_host_;
100 has_port_ = other.has_port_;
101 has_path_ = other.has_path_;
102 has_query_ = other.has_query_;
103 scheme_ = std::move(other.scheme_);
104 host_ = std::move(other.host_);
105 port_ = other.port_;
106 path_ = std::move(other.path_);
107 query_ = std::move(other.query_);
108 other.is_valid_ = false;
109 return *this;
110 }
111
112 } // namespace openscreen
113