netwerk/cookie/nsCookie.cpp@fc2d59ddac77
netwerk/cookie/nsCookie.cpp
Wed, 31 Dec 2014 07:22:50 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 07:22:50 +0100
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
- parent 0
- 6474c204b198
- child 5
- 4ab42b5ab56c
- permissions
- -rw-r--r--
Correct previous dual key logic pending first delivery installment.
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 #include "nsCookie.h"
7 #include "nsUTF8ConverterService.h"
8 #include <stdlib.h>
10 /******************************************************************************
11 * nsCookie:
12 * string helper impl
13 ******************************************************************************/
15 // copy aSource strings into contiguous storage provided in aDest1,
16 // providing terminating nulls for each destination string.
17 static inline void
18 StrBlockCopy(const nsACString &aSource1,
19 const nsACString &aSource2,
20 const nsACString &aSource3,
21 const nsACString &aSource4,
22 const nsACString &aSource5,
23 char *&aDest1,
24 char *&aDest2,
25 char *&aDest3,
26 char *&aDest4,
27 char *&aDest5,
28 char *&aDestEnd)
29 {
30 char *toBegin = aDest1;
31 nsACString::const_iterator fromBegin, fromEnd;
33 *copy_string(aSource1.BeginReading(fromBegin), aSource1.EndReading(fromEnd), toBegin) = char(0);
34 aDest2 = ++toBegin;
35 *copy_string(aSource2.BeginReading(fromBegin), aSource2.EndReading(fromEnd), toBegin) = char(0);
36 aDest3 = ++toBegin;
37 *copy_string(aSource3.BeginReading(fromBegin), aSource3.EndReading(fromEnd), toBegin) = char(0);
38 aDest4 = ++toBegin;
39 *copy_string(aSource4.BeginReading(fromBegin), aSource4.EndReading(fromEnd), toBegin) = char(0);
40 aDest5 = ++toBegin;
41 *copy_string(aSource5.BeginReading(fromBegin), aSource5.EndReading(fromEnd), toBegin) = char(0);
42 aDestEnd = toBegin;
43 }
45 /******************************************************************************
46 * nsCookie:
47 * creation helper
48 ******************************************************************************/
50 // This is a counter that keeps track of the last used creation time, each time
51 // we create a new nsCookie. This is nominally the time (in microseconds) the
52 // cookie was created, but is guaranteed to be monotonically increasing for
53 // cookies added at runtime after the database has been read in. This is
54 // necessary to enforce ordering among cookies whose creation times would
55 // otherwise overlap, since it's possible two cookies may be created at the same
56 // time, or that the system clock isn't monotonic.
57 static int64_t gLastCreationTime;
59 int64_t
60 nsCookie::GenerateUniqueCreationTime(int64_t aCreationTime)
61 {
62 // Check if the creation time given to us is greater than the running maximum
63 // (it should always be monotonically increasing).
64 if (aCreationTime > gLastCreationTime) {
65 gLastCreationTime = aCreationTime;
66 return aCreationTime;
67 }
69 // Make up our own.
70 return ++gLastCreationTime;
71 }
73 nsCookie *
74 nsCookie::Create(const nsACString &aName,
75 const nsACString &aValue,
76 const nsACString &aHost,
77 const nsACString &aOrigin,
78 const nsACString &aPath,
79 int64_t aExpiry,
80 int64_t aLastAccessed,
81 int64_t aCreationTime,
82 bool aIsSession,
83 bool aIsSecure,
84 bool aIsHttpOnly)
85 {
86 // Ensure mValue contains a valid UTF-8 sequence. Otherwise XPConnect will
87 // truncate the string after the first invalid octet.
88 nsUTF8ConverterService converter;
89 nsAutoCString aUTF8Value;
90 converter.ConvertStringToUTF8(aValue, "UTF-8", false, true, 1, aUTF8Value);
92 // find the required string buffer size, accommodating terminating nulls
93 const uint32_t stringLength = aName.Length() + aUTF8Value.Length() +
94 aHost.Length() + aOrigin.Length() +
95 aPath.Length() + 5;
97 // allocate contiguous space for the nsCookie and its strings -
98 // we store the strings in-line with the nsCookie to save allocations
99 void *place = ::operator new(sizeof(nsCookie) + stringLength);
100 if (!place)
101 return nullptr;
103 // assign string members
104 char *name, *value, *host, *origin, *path, *end;
105 name = static_cast<char *>(place) + sizeof(nsCookie);
106 StrBlockCopy(aName, aUTF8Value, aHost, aOrigin, aPath,
107 name, value, host, origin, path, end);
109 // If the creationTime given to us is higher than the running maximum, update
110 // our maximum.
111 if (aCreationTime > gLastCreationTime)
112 gLastCreationTime = aCreationTime;
114 // construct the cookie. placement new, oh yeah!
115 return new (place) nsCookie(name, value, host, origin, path, end,
116 aExpiry, aLastAccessed, aCreationTime,
117 aIsSession, aIsSecure, aIsHttpOnly);
118 }
120 size_t
121 nsCookie::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
122 {
123 // There is no need to measure the sizes of the individual string
124 // members, since the strings are stored in-line with the nsCookie.
125 return aMallocSizeOf(this);
126 }
128 /******************************************************************************
129 * nsCookie:
130 * xpcom impl
131 ******************************************************************************/
133 // xpcom getters
134 NS_IMETHODIMP nsCookie::GetName(nsACString &aName) { aName = Name(); return NS_OK; }
135 NS_IMETHODIMP nsCookie::GetValue(nsACString &aValue) { aValue = Value(); return NS_OK; }
136 NS_IMETHODIMP nsCookie::GetOrigin(nsACString &aOrigin) { aOrigin = Origin(); return NS_OK; }
137 NS_IMETHODIMP nsCookie::GetHost(nsACString &aHost) { aHost = Host(); return NS_OK; }
138 NS_IMETHODIMP nsCookie::GetRawHost(nsACString &aHost) { aHost = RawHost(); return NS_OK; }
139 NS_IMETHODIMP nsCookie::GetPath(nsACString &aPath) { aPath = Path(); return NS_OK; }
140 NS_IMETHODIMP nsCookie::GetExpiry(int64_t *aExpiry) { *aExpiry = Expiry(); return NS_OK; }
141 NS_IMETHODIMP nsCookie::GetIsSession(bool *aIsSession) { *aIsSession = IsSession(); return NS_OK; }
142 NS_IMETHODIMP nsCookie::GetIsDomain(bool *aIsDomain) { *aIsDomain = IsDomain(); return NS_OK; }
143 NS_IMETHODIMP nsCookie::GetIsSecure(bool *aIsSecure) { *aIsSecure = IsSecure(); return NS_OK; }
144 NS_IMETHODIMP nsCookie::GetIsHttpOnly(bool *aHttpOnly) { *aHttpOnly = IsHttpOnly(); return NS_OK; }
145 NS_IMETHODIMP nsCookie::GetStatus(nsCookieStatus *aStatus) { *aStatus = 0; return NS_OK; }
146 NS_IMETHODIMP nsCookie::GetPolicy(nsCookiePolicy *aPolicy) { *aPolicy = 0; return NS_OK; }
147 NS_IMETHODIMP nsCookie::GetCreationTime(int64_t *aCreation){ *aCreation = CreationTime(); return NS_OK; }
148 NS_IMETHODIMP nsCookie::GetLastAccessed(int64_t *aTime) { *aTime = LastAccessed(); return NS_OK; }
150 // compatibility method, for use with the legacy nsICookie interface.
151 // here, expires == 0 denotes a session cookie.
152 NS_IMETHODIMP
153 nsCookie::GetExpires(uint64_t *aExpires)
154 {
155 if (IsSession()) {
156 *aExpires = 0;
157 } else {
158 *aExpires = Expiry() > 0 ? Expiry() : 1;
159 }
160 return NS_OK;
161 }
163 NS_IMPL_ISUPPORTS(nsCookie, nsICookie2, nsICookie)
