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
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef DOM_QUOTA_ORIGINPARSER_H_
#define DOM_QUOTA_ORIGINPARSER_H_
#include "mozilla/Attributes.h"
#include "mozilla/dom/Nullable.h"
#include "nsCharSeparatedTokenizer.h"
#include "nsString.h"
#include "nsTArray.h"
namespace mozilla {
class OriginAttributes;
class OriginAttributesPattern;
namespace dom::quota {
class MOZ_STACK_CLASS OriginParser final {
public:
enum ResultType { InvalidOrigin, ObsoleteOrigin, ValidOrigin };
private:
using Tokenizer =
nsCCharSeparatedTokenizerTemplate<NS_TokenizerIgnoreNothing>;
enum SchemeType { eNone, eFile, eAbout, eChrome };
enum State {
eExpectingAppIdOrScheme,
eExpectingInMozBrowser,
eExpectingScheme,
eExpectingEmptyToken1,
eExpectingEmptyToken2,
eExpectingEmptyTokenOrUniversalFileOrigin,
eExpectingHost,
eExpectingPort,
eExpectingEmptyTokenOrDriveLetterOrPathnameComponent,
eExpectingEmptyTokenOrPathnameComponent,
eExpectingEmptyToken1OrHost,
// We transit from eExpectingHost to this state when we encounter a host
// beginning with "[" which indicates an IPv6 literal. Because we mangle the
// IPv6 ":" delimiter to be a "+", we will receive separate tokens for each
// portion of the IPv6 address, including a final token that ends with "]".
// (Note that we do not mangle "[" or "]".) Note that the URL spec
// explicitly disclaims support for "<zone_id>" and so we don't have to deal
// with that.
eExpectingIPV6Token,
eComplete,
eHandledTrailingSeparator
};
const nsCString mOrigin;
Tokenizer mTokenizer;
nsCString mScheme;
nsCString mHost;
Nullable<uint32_t> mPort;
nsTArray<nsCString> mPathnameComponents;
nsCString mHandledTokens;
SchemeType mSchemeType;
State mState;
bool mUniversalFileOrigin;
bool mMaybeDriveLetter;
bool mError;
bool mMaybeObsolete;
// Number of group which a IPv6 address has. Should be less than 9.
uint8_t mIPGroup;
public:
explicit OriginParser(const nsACString& aOrigin)
: mOrigin(aOrigin),
mTokenizer(aOrigin, '+'),
mSchemeType(eNone),
mState(eExpectingAppIdOrScheme),
mUniversalFileOrigin(false),
mMaybeDriveLetter(false),
mError(false),
mMaybeObsolete(false),
mIPGroup(0) {}
static ResultType ParseOrigin(const nsACString& aOrigin, nsCString& aSpec,
OriginAttributes* aAttrs,
nsCString& aOriginalSuffix);
ResultType Parse(nsACString& aSpec);
private:
void HandleScheme(const nsDependentCSubstring& aToken);
void HandlePathnameComponent(const nsDependentCSubstring& aToken);
void HandleToken(const nsDependentCSubstring& aToken);
void HandleTrailingSeparator();
};
bool IsUUIDOrigin(const nsCString& aOrigin);
/**
* Checks whether the given origin attributes suffix corresponds to a specific
* user context, based on the provided `userContextId` value.
*
* This function parses the input suffix into an `OriginAttributes` object
* and evaluates the `userContextId` attribute. If the attribute matches the
* given `aUserContextId`, the suffix is considered to belong to that user
* context. Other attributes in the suffix are ignored.
*
* @param aSuffix The origin attributes suffix to check. This must be a valid
* suffix; otherwise, the code will trigger an assertion failure.
* @param aUserContextId The `userContextId` value to compare against the
* attribute in the suffix.
*
* @return `true` if the `userContextId` attribute matches `aUserContextId`,
* `false` otherwise.
*
* @note The input must be a valid suffix. Invalid inputs will cause a
* diagnostic assertion failure because of `MOZ_ALWAYS_TRUE`.
*/
bool IsUserContextSuffix(const nsACString& aSuffix, uint32_t aUserContextId);
/**
* Checks whether the given `OriginAttributesPattern` matches a specific
* user context, based on the provided `userContextId`.
*
* This function evaluates the `mUserContextId` attribute of the provided
* pattern. If the attribute is not set (`WasPassed` returns false), the
* function returns `false`. If it is set, the function compares its value
* against the specified `aUserContextId`.
*
* @param aPattern The `OriginAttributesPattern` to check.
* @param aUserContextId The expected `userContextId` to compare against
* the `mUserContextId` attribute in the pattern.
*
* @return `true` if `mUserContextId` is set and matches `aUserContextId`,
* `false` otherwise.
*/
bool IsUserContextPattern(const OriginAttributesPattern& aPattern,
uint32_t aUserContextId);
} // namespace dom::quota
} // namespace mozilla
#endif // DOM_QUOTA_ORIGINPARSER_H_
|
