The Tor Browser / file comparison
comparison: netwerk/cookie/nsCookie.cpp
netwerk/cookie/nsCookie.cpp
- changeset 0
- 6474c204b198
- child 4
- fc2d59ddac77
equal
deleted
inserted
replaced
| -1:000000000000 | 0:f549218e72a1 |
|---|---|
| 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/. */ | |
| 5 | |
| 6 #include "nsCookie.h" | |
| 7 #include "nsUTF8ConverterService.h" | |
| 8 #include <stdlib.h> | |
| 9 | |
| 10 /****************************************************************************** | |
| 11 * nsCookie: | |
| 12 * string helper impl | |
| 13 ******************************************************************************/ | |
| 14 | |
| 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; | |
| 30 | |
| 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 } | |
| 40 | |
| 41 /****************************************************************************** | |
| 42 * nsCookie: | |
| 43 * creation helper | |
| 44 ******************************************************************************/ | |
| 45 | |
| 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; | |
| 54 | |
| 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 } | |
| 64 | |
| 65 // Make up our own. | |
| 66 return ++gLastCreationTime; | |
| 67 } | |
| 68 | |
| 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); | |
| 86 | |
| 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; | |
| 90 | |
| 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; | |
| 96 | |
| 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); | |
| 102 | |
| 103 // If the creationTime given to us is higher than the running maximum, update | |
| 104 // our maximum. | |
| 105 if (aCreationTime > gLastCreationTime) | |
| 106 gLastCreationTime = aCreationTime; | |
| 107 | |
| 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 } | |
| 113 | |
| 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 } | |
| 121 | |
| 122 /****************************************************************************** | |
| 123 * nsCookie: | |
| 124 * xpcom impl | |
| 125 ******************************************************************************/ | |
| 126 | |
| 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; } | |
| 142 | |
| 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 } | |
| 155 | |
| 156 NS_IMPL_ISUPPORTS(nsCookie, nsICookie2, nsICookie) |
