netwerk/cookie/nsCookie.cpp@6474c204b198
netwerk/cookie/nsCookie.cpp
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- child 4
- fc2d59ddac77
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
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 char *&aDest1,
23 char *&aDest2,
24 char *&aDest3,
25 char *&aDest4,
26 char *&aDestEnd)
27 {
28 char *toBegin = aDest1;
29 nsACString::const_iterator fromBegin, fromEnd;
31 *copy_string(aSource1.BeginReading(fromBegin), aSource1.EndReading(fromEnd), toBegin) = char(0);
32 aDest2 = ++toBegin;
33 *copy_string(aSource2.BeginReading(fromBegin), aSource2.EndReading(fromEnd), toBegin) = char(0);
34 aDest3 = ++toBegin;
35 *copy_string(aSource3.BeginReading(fromBegin), aSource3.EndReading(fromEnd), toBegin) = char(0);
36 aDest4 = ++toBegin;
37 *copy_string(aSource4.BeginReading(fromBegin), aSource4.EndReading(fromEnd), toBegin) = char(0);
38 aDestEnd = toBegin;
39 }
41 /******************************************************************************
42 * nsCookie:
43 * creation helper
44 ******************************************************************************/
46 // This is a counter that keeps track of the last used creation time, each time
47 // we create a new nsCookie. This is nominally the time (in microseconds) the
48 // cookie was created, but is guaranteed to be monotonically increasing for
49 // cookies added at runtime after the database has been read in. This is
50 // necessary to enforce ordering among cookies whose creation times would
51 // otherwise overlap, since it's possible two cookies may be created at the same
52 // time, or that the system clock isn't monotonic.
53 static int64_t gLastCreationTime;
55 int64_t
56 nsCookie::GenerateUniqueCreationTime(int64_t aCreationTime)
57 {
58 // Check if the creation time given to us is greater than the running maximum
59 // (it should always be monotonically increasing).
60 if (aCreationTime > gLastCreationTime) {
61 gLastCreationTime = aCreationTime;
62 return aCreationTime;
63 }
65 // Make up our own.
66 return ++gLastCreationTime;
67 }
69 nsCookie *
70 nsCookie::Create(const nsACString &aName,
71 const nsACString &aValue,
72 const nsACString &aHost,
73 const nsACString &aPath,
74 int64_t aExpiry,
75 int64_t aLastAccessed,
76 int64_t aCreationTime,
77 bool aIsSession,
78 bool aIsSecure,
79 bool aIsHttpOnly)
80 {
81 // Ensure mValue contains a valid UTF-8 sequence. Otherwise XPConnect will
82 // truncate the string after the first invalid octet.
83 nsUTF8ConverterService converter;
84 nsAutoCString aUTF8Value;
85 converter.ConvertStringToUTF8(aValue, "UTF-8", false, true, 1, aUTF8Value);
87 // find the required string buffer size, adding 4 for the terminating nulls
88 const uint32_t stringLength = aName.Length() + aUTF8Value.Length() +
89 aHost.Length() + aPath.Length() + 4;
91 // allocate contiguous space for the nsCookie and its strings -
92 // we store the strings in-line with the nsCookie to save allocations
93 void *place = ::operator new(sizeof(nsCookie) + stringLength);
94 if (!place)
95 return nullptr;
97 // assign string members
98 char *name, *value, *host, *path, *end;
99 name = static_cast<char *>(place) + sizeof(nsCookie);
100 StrBlockCopy(aName, aUTF8Value, aHost, aPath,
101 name, value, host, path, end);
103 // If the creationTime given to us is higher than the running maximum, update
104 // our maximum.
105 if (aCreationTime > gLastCreationTime)
106 gLastCreationTime = aCreationTime;
108 // construct the cookie. placement new, oh yeah!
109 return new (place) nsCookie(name, value, host, path, end,
110 aExpiry, aLastAccessed, aCreationTime,
111 aIsSession, aIsSecure, aIsHttpOnly);
112 }
114 size_t
115 nsCookie::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
116 {
117 // There is no need to measure the sizes of the individual string
118 // members, since the strings are stored in-line with the nsCookie.
119 return aMallocSizeOf(this);
120 }
122 /******************************************************************************
123 * nsCookie:
124 * xpcom impl
125 ******************************************************************************/
127 // xpcom getters
128 NS_IMETHODIMP nsCookie::GetName(nsACString &aName) { aName = Name(); return NS_OK; }
129 NS_IMETHODIMP nsCookie::GetValue(nsACString &aValue) { aValue = Value(); return NS_OK; }
130 NS_IMETHODIMP nsCookie::GetHost(nsACString &aHost) { aHost = Host(); return NS_OK; }
131 NS_IMETHODIMP nsCookie::GetRawHost(nsACString &aHost) { aHost = RawHost(); return NS_OK; }
132 NS_IMETHODIMP nsCookie::GetPath(nsACString &aPath) { aPath = Path(); return NS_OK; }
133 NS_IMETHODIMP nsCookie::GetExpiry(int64_t *aExpiry) { *aExpiry = Expiry(); return NS_OK; }
134 NS_IMETHODIMP nsCookie::GetIsSession(bool *aIsSession) { *aIsSession = IsSession(); return NS_OK; }
135 NS_IMETHODIMP nsCookie::GetIsDomain(bool *aIsDomain) { *aIsDomain = IsDomain(); return NS_OK; }
136 NS_IMETHODIMP nsCookie::GetIsSecure(bool *aIsSecure) { *aIsSecure = IsSecure(); return NS_OK; }
137 NS_IMETHODIMP nsCookie::GetIsHttpOnly(bool *aHttpOnly) { *aHttpOnly = IsHttpOnly(); return NS_OK; }
138 NS_IMETHODIMP nsCookie::GetStatus(nsCookieStatus *aStatus) { *aStatus = 0; return NS_OK; }
139 NS_IMETHODIMP nsCookie::GetPolicy(nsCookiePolicy *aPolicy) { *aPolicy = 0; return NS_OK; }
140 NS_IMETHODIMP nsCookie::GetCreationTime(int64_t *aCreation){ *aCreation = CreationTime(); return NS_OK; }
141 NS_IMETHODIMP nsCookie::GetLastAccessed(int64_t *aTime) { *aTime = LastAccessed(); return NS_OK; }
143 // compatibility method, for use with the legacy nsICookie interface.
144 // here, expires == 0 denotes a session cookie.
145 NS_IMETHODIMP
146 nsCookie::GetExpires(uint64_t *aExpires)
147 {
148 if (IsSession()) {
149 *aExpires = 0;
150 } else {
151 *aExpires = Expiry() > 0 ? Expiry() : 1;
152 }
153 return NS_OK;
154 }
156 NS_IMPL_ISUPPORTS(nsCookie, nsICookie2, nsICookie)
