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netwerk/cookie/nsCookie.cpp@fc2d59ddac77 (annotated)

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.

michael@0 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #include "nsCookie.h"
michael@0 7 #include "nsUTF8ConverterService.h"
michael@0 8 #include <stdlib.h>
michael@0 9
michael@0 10 /******************************************************************************
michael@0 11 * nsCookie:
michael@0 12 * string helper impl
michael@0 13 ******************************************************************************/
michael@0 14
michael@0 15 // copy aSource strings into contiguous storage provided in aDest1,
michael@0 16 // providing terminating nulls for each destination string.
michael@0 17 static inline void
michael@0 18 StrBlockCopy(const nsACString &aSource1,
michael@0 19 const nsACString &aSource2,
michael@0 20 const nsACString &aSource3,
michael@0 21 const nsACString &aSource4,
michael@4 22 const nsACString &aSource5,
michael@0 23 char *&aDest1,
michael@0 24 char *&aDest2,
michael@0 25 char *&aDest3,
michael@0 26 char *&aDest4,
michael@4 27 char *&aDest5,
michael@0 28 char *&aDestEnd)
michael@0 29 {
michael@0 30 char *toBegin = aDest1;
michael@0 31 nsACString::const_iterator fromBegin, fromEnd;
michael@0 32
michael@0 33 *copy_string(aSource1.BeginReading(fromBegin), aSource1.EndReading(fromEnd), toBegin) = char(0);
michael@0 34 aDest2 = ++toBegin;
michael@0 35 *copy_string(aSource2.BeginReading(fromBegin), aSource2.EndReading(fromEnd), toBegin) = char(0);
michael@0 36 aDest3 = ++toBegin;
michael@0 37 *copy_string(aSource3.BeginReading(fromBegin), aSource3.EndReading(fromEnd), toBegin) = char(0);
michael@0 38 aDest4 = ++toBegin;
michael@0 39 *copy_string(aSource4.BeginReading(fromBegin), aSource4.EndReading(fromEnd), toBegin) = char(0);
michael@4 40 aDest5 = ++toBegin;
michael@4 41 *copy_string(aSource5.BeginReading(fromBegin), aSource5.EndReading(fromEnd), toBegin) = char(0);
michael@0 42 aDestEnd = toBegin;
michael@0 43 }
michael@0 44
michael@0 45 /******************************************************************************
michael@0 46 * nsCookie:
michael@0 47 * creation helper
michael@0 48 ******************************************************************************/
michael@0 49
michael@0 50 // This is a counter that keeps track of the last used creation time, each time
michael@0 51 // we create a new nsCookie. This is nominally the time (in microseconds) the
michael@0 52 // cookie was created, but is guaranteed to be monotonically increasing for
michael@0 53 // cookies added at runtime after the database has been read in. This is
michael@0 54 // necessary to enforce ordering among cookies whose creation times would
michael@0 55 // otherwise overlap, since it's possible two cookies may be created at the same
michael@0 56 // time, or that the system clock isn't monotonic.
michael@0 57 static int64_t gLastCreationTime;
michael@0 58
michael@0 59 int64_t
michael@0 60 nsCookie::GenerateUniqueCreationTime(int64_t aCreationTime)
michael@0 61 {
michael@0 62 // Check if the creation time given to us is greater than the running maximum
michael@0 63 // (it should always be monotonically increasing).
michael@0 64 if (aCreationTime > gLastCreationTime) {
michael@0 65 gLastCreationTime = aCreationTime;
michael@0 66 return aCreationTime;
michael@0 67 }
michael@0 68
michael@0 69 // Make up our own.
michael@0 70 return ++gLastCreationTime;
michael@0 71 }
michael@0 72
michael@0 73 nsCookie *
michael@0 74 nsCookie::Create(const nsACString &aName,
michael@0 75 const nsACString &aValue,
michael@0 76 const nsACString &aHost,
michael@4 77 const nsACString &aOrigin,
michael@0 78 const nsACString &aPath,
michael@0 79 int64_t aExpiry,
michael@0 80 int64_t aLastAccessed,
michael@0 81 int64_t aCreationTime,
michael@0 82 bool aIsSession,
michael@0 83 bool aIsSecure,
michael@0 84 bool aIsHttpOnly)
michael@0 85 {
michael@0 86 // Ensure mValue contains a valid UTF-8 sequence. Otherwise XPConnect will
michael@0 87 // truncate the string after the first invalid octet.
michael@0 88 nsUTF8ConverterService converter;
michael@0 89 nsAutoCString aUTF8Value;
michael@0 90 converter.ConvertStringToUTF8(aValue, "UTF-8", false, true, 1, aUTF8Value);
michael@0 91
michael@4 92 // find the required string buffer size, accommodating terminating nulls
michael@0 93 const uint32_t stringLength = aName.Length() + aUTF8Value.Length() +
michael@4 94 aHost.Length() + aOrigin.Length() +
michael@4 95 aPath.Length() + 5;
michael@0 96
michael@0 97 // allocate contiguous space for the nsCookie and its strings -
michael@0 98 // we store the strings in-line with the nsCookie to save allocations
michael@0 99 void *place = ::operator new(sizeof(nsCookie) + stringLength);
michael@0 100 if (!place)
michael@0 101 return nullptr;
michael@0 102
michael@0 103 // assign string members
michael@4 104 char *name, *value, *host, *origin, *path, *end;
michael@0 105 name = static_cast<char *>(place) + sizeof(nsCookie);
michael@4 106 StrBlockCopy(aName, aUTF8Value, aHost, aOrigin, aPath,
michael@4 107 name, value, host, origin, path, end);
michael@0 108
michael@0 109 // If the creationTime given to us is higher than the running maximum, update
michael@0 110 // our maximum.
michael@0 111 if (aCreationTime > gLastCreationTime)
michael@0 112 gLastCreationTime = aCreationTime;
michael@0 113
michael@0 114 // construct the cookie. placement new, oh yeah!
michael@4 115 return new (place) nsCookie(name, value, host, origin, path, end,
michael@0 116 aExpiry, aLastAccessed, aCreationTime,
michael@0 117 aIsSession, aIsSecure, aIsHttpOnly);
michael@0 118 }
michael@0 119
michael@0 120 size_t
michael@0 121 nsCookie::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
michael@0 122 {
michael@0 123 // There is no need to measure the sizes of the individual string
michael@0 124 // members, since the strings are stored in-line with the nsCookie.
michael@0 125 return aMallocSizeOf(this);
michael@0 126 }
michael@0 127
michael@0 128 /******************************************************************************
michael@0 129 * nsCookie:
michael@0 130 * xpcom impl
michael@0 131 ******************************************************************************/
michael@0 132
michael@0 133 // xpcom getters
michael@0 134 NS_IMETHODIMP nsCookie::GetName(nsACString &aName) { aName = Name(); return NS_OK; }
michael@0 135 NS_IMETHODIMP nsCookie::GetValue(nsACString &aValue) { aValue = Value(); return NS_OK; }
michael@4 136 NS_IMETHODIMP nsCookie::GetOrigin(nsACString &aOrigin) { aOrigin = Origin(); return NS_OK; }
michael@0 137 NS_IMETHODIMP nsCookie::GetHost(nsACString &aHost) { aHost = Host(); return NS_OK; }
michael@0 138 NS_IMETHODIMP nsCookie::GetRawHost(nsACString &aHost) { aHost = RawHost(); return NS_OK; }
michael@0 139 NS_IMETHODIMP nsCookie::GetPath(nsACString &aPath) { aPath = Path(); return NS_OK; }
michael@0 140 NS_IMETHODIMP nsCookie::GetExpiry(int64_t *aExpiry) { *aExpiry = Expiry(); return NS_OK; }
michael@0 141 NS_IMETHODIMP nsCookie::GetIsSession(bool *aIsSession) { *aIsSession = IsSession(); return NS_OK; }
michael@0 142 NS_IMETHODIMP nsCookie::GetIsDomain(bool *aIsDomain) { *aIsDomain = IsDomain(); return NS_OK; }
michael@0 143 NS_IMETHODIMP nsCookie::GetIsSecure(bool *aIsSecure) { *aIsSecure = IsSecure(); return NS_OK; }
michael@0 144 NS_IMETHODIMP nsCookie::GetIsHttpOnly(bool *aHttpOnly) { *aHttpOnly = IsHttpOnly(); return NS_OK; }
michael@0 145 NS_IMETHODIMP nsCookie::GetStatus(nsCookieStatus *aStatus) { *aStatus = 0; return NS_OK; }
michael@0 146 NS_IMETHODIMP nsCookie::GetPolicy(nsCookiePolicy *aPolicy) { *aPolicy = 0; return NS_OK; }
michael@0 147 NS_IMETHODIMP nsCookie::GetCreationTime(int64_t *aCreation){ *aCreation = CreationTime(); return NS_OK; }
michael@0 148 NS_IMETHODIMP nsCookie::GetLastAccessed(int64_t *aTime) { *aTime = LastAccessed(); return NS_OK; }
michael@0 149
michael@0 150 // compatibility method, for use with the legacy nsICookie interface.
michael@0 151 // here, expires == 0 denotes a session cookie.
michael@0 152 NS_IMETHODIMP
michael@0 153 nsCookie::GetExpires(uint64_t *aExpires)
michael@0 154 {
michael@0 155 if (IsSession()) {
michael@0 156 *aExpires = 0;
michael@0 157 } else {
michael@0 158 *aExpires = Expiry() > 0 ? Expiry() : 1;
michael@0 159 }
michael@0 160 return NS_OK;
michael@0 161 }
michael@0 162
michael@0 163 NS_IMPL_ISUPPORTS(nsCookie, nsICookie2, nsICookie)

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