зеркало из https://github.com/mozilla/gecko-dev.git
175 строки
7.6 KiB
C++
175 строки
7.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Daniel Witte.
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* Portions created by the Initial Developer are Copyright (C) 2003
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Daniel Witte (dwitte@stanford.edu)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsCookie.h"
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#include <stdlib.h>
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/******************************************************************************
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* nsCookie:
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* string helper impl
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******************************************************************************/
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// copy aSource strings into contiguous storage provided in aDest1,
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// providing terminating nulls for each destination string.
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static inline void
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StrBlockCopy(const nsACString &aSource1,
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const nsACString &aSource2,
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const nsACString &aSource3,
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const nsACString &aSource4,
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char *&aDest1,
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char *&aDest2,
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char *&aDest3,
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char *&aDest4,
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char *&aDestEnd)
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{
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char *toBegin = aDest1;
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nsACString::const_iterator fromBegin, fromEnd;
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*copy_string(aSource1.BeginReading(fromBegin), aSource1.EndReading(fromEnd), toBegin) = char(0);
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aDest2 = ++toBegin;
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*copy_string(aSource2.BeginReading(fromBegin), aSource2.EndReading(fromEnd), toBegin) = char(0);
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aDest3 = ++toBegin;
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*copy_string(aSource3.BeginReading(fromBegin), aSource3.EndReading(fromEnd), toBegin) = char(0);
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aDest4 = ++toBegin;
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*copy_string(aSource4.BeginReading(fromBegin), aSource4.EndReading(fromEnd), toBegin) = char(0);
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aDestEnd = toBegin;
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}
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/******************************************************************************
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* nsCookie:
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* creation helper
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******************************************************************************/
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// This is a counter that keeps track of the last used creation time, each time
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// we create a new nsCookie. This is nominally the time (in microseconds) the
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// cookie was created, but is guaranteed to be monotonically increasing for
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// cookies added at runtime after the database has been read in. This is
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// necessary to enforce ordering among cookies whose creation times would
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// otherwise overlap, since it's possible two cookies may be created at the same
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// time, or that the system clock isn't monotonic.
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static PRInt64 gLastCreationTime;
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PRInt64
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nsCookie::GenerateUniqueCreationTime(PRInt64 aCreationTime)
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{
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// Check if the creation time given to us is greater than the running maximum
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// (it should always be monotonically increasing).
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if (aCreationTime > gLastCreationTime) {
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gLastCreationTime = aCreationTime;
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return aCreationTime;
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}
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// Make up our own.
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return ++gLastCreationTime;
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}
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nsCookie *
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nsCookie::Create(const nsACString &aName,
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const nsACString &aValue,
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const nsACString &aHost,
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const nsACString &aPath,
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PRInt64 aExpiry,
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PRInt64 aLastAccessed,
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PRInt64 aCreationTime,
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bool aIsSession,
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bool aIsSecure,
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bool aIsHttpOnly)
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{
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// find the required string buffer size, adding 4 for the terminating nulls
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const PRUint32 stringLength = aName.Length() + aValue.Length() +
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aHost.Length() + aPath.Length() + 4;
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// allocate contiguous space for the nsCookie and its strings -
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// we store the strings in-line with the nsCookie to save allocations
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void *place = ::operator new(sizeof(nsCookie) + stringLength);
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if (!place)
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return nsnull;
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// assign string members
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char *name, *value, *host, *path, *end;
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name = static_cast<char *>(place) + sizeof(nsCookie);
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StrBlockCopy(aName, aValue, aHost, aPath,
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name, value, host, path, end);
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// If the creationTime given to us is higher than the running maximum, update
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// our maximum.
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if (aCreationTime > gLastCreationTime)
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gLastCreationTime = aCreationTime;
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// construct the cookie. placement new, oh yeah!
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return new (place) nsCookie(name, value, host, path, end,
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aExpiry, aLastAccessed, aCreationTime,
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aIsSession, aIsSecure, aIsHttpOnly);
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}
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/******************************************************************************
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* nsCookie:
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* xpcom impl
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******************************************************************************/
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// xpcom getters
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NS_IMETHODIMP nsCookie::GetName(nsACString &aName) { aName = Name(); return NS_OK; }
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NS_IMETHODIMP nsCookie::GetValue(nsACString &aValue) { aValue = Value(); return NS_OK; }
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NS_IMETHODIMP nsCookie::GetHost(nsACString &aHost) { aHost = Host(); return NS_OK; }
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NS_IMETHODIMP nsCookie::GetRawHost(nsACString &aHost) { aHost = RawHost(); return NS_OK; }
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NS_IMETHODIMP nsCookie::GetPath(nsACString &aPath) { aPath = Path(); return NS_OK; }
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NS_IMETHODIMP nsCookie::GetExpiry(PRInt64 *aExpiry) { *aExpiry = Expiry(); return NS_OK; }
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NS_IMETHODIMP nsCookie::GetIsSession(bool *aIsSession) { *aIsSession = IsSession(); return NS_OK; }
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NS_IMETHODIMP nsCookie::GetIsDomain(bool *aIsDomain) { *aIsDomain = IsDomain(); return NS_OK; }
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NS_IMETHODIMP nsCookie::GetIsSecure(bool *aIsSecure) { *aIsSecure = IsSecure(); return NS_OK; }
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NS_IMETHODIMP nsCookie::GetIsHttpOnly(bool *aHttpOnly) { *aHttpOnly = IsHttpOnly(); return NS_OK; }
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NS_IMETHODIMP nsCookie::GetStatus(nsCookieStatus *aStatus) { *aStatus = 0; return NS_OK; }
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NS_IMETHODIMP nsCookie::GetPolicy(nsCookiePolicy *aPolicy) { *aPolicy = 0; return NS_OK; }
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NS_IMETHODIMP nsCookie::GetCreationTime(PRInt64 *aCreation){ *aCreation = CreationTime(); return NS_OK; }
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NS_IMETHODIMP nsCookie::GetLastAccessed(PRInt64 *aTime) { *aTime = LastAccessed(); return NS_OK; }
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// compatibility method, for use with the legacy nsICookie interface.
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// here, expires == 0 denotes a session cookie.
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NS_IMETHODIMP
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nsCookie::GetExpires(PRUint64 *aExpires)
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{
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if (IsSession()) {
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*aExpires = 0;
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} else {
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*aExpires = Expiry() > 0 ? Expiry() : 1;
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}
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return NS_OK;
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}
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NS_IMPL_ISUPPORTS2(nsCookie, nsICookie2, nsICookie)
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