From aa8fd6bc39f929a2bfad6bba4bf26e69624cd88a Mon Sep 17 00:00:00 2001 From: Edward Welbourne Date: Thu, 13 Jan 2022 16:37:01 +0100 Subject: Convert date-time to UTC before claiming it's in GMT MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit QNetworkHeadersPrivate::toHttpDate() used a custom format to output a date-time; the format supplied GMT as suffix, but neglected to convert the date-time to UTC, so local-time was formatted as if it were UTC, regardless of its actual offset from it. Fixing this (by the obvious toUTC() call) broke formatting when the supplied header value was a QDate, since it's packaged as a QVariant and QVariant's conversion of QDate to QDateTime uses local time's (not UTC's) start of day. So fix headerValue() to separate QDate and QDateTime cases and use startOfDay(Qt::UTC) to get the right start of the day. Added tests for non-UTC date-times appearing correctly in HTTP headers. Fixes: QTBUG-80666 Pick-to: 6.3 6.2 6.2.3 5.15 Change-Id: I2792bce14a07be025cf551b0594630260c112269 Reviewed-by: Mårten Nordheim --- src/network/access/qnetworkrequest.cpp | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'src/network/access/qnetworkrequest.cpp') diff --git a/src/network/access/qnetworkrequest.cpp b/src/network/access/qnetworkrequest.cpp index 64d35aa2782..de40b2c088e 100644 --- a/src/network/access/qnetworkrequest.cpp +++ b/src/network/access/qnetworkrequest.cpp @@ -1,6 +1,6 @@ /**************************************************************************** ** -** Copyright (C) 2016 The Qt Company Ltd. +** Copyright (C) 2022 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtNetwork module of the Qt Toolkit. @@ -1071,9 +1071,10 @@ static QByteArray headerValue(QNetworkRequest::KnownHeaders header, const QVaria case QNetworkRequest::LastModifiedHeader: case QNetworkRequest::IfModifiedSinceHeader: switch (value.userType()) { + // Generate RFC 1123/822 dates: case QMetaType::QDate: + return QNetworkHeadersPrivate::toHttpDate(value.toDate().startOfDay(Qt::UTC)); case QMetaType::QDateTime: - // generate RFC 1123/822 dates: return QNetworkHeadersPrivate::toHttpDate(value.toDateTime()); default: @@ -1515,8 +1516,7 @@ QDateTime QNetworkHeadersPrivate::fromHttpDate(const QByteArray &value) QByteArray QNetworkHeadersPrivate::toHttpDate(const QDateTime &dt) { - return QLocale::c().toString(dt, u"ddd, dd MMM yyyy hh:mm:ss 'GMT'") - .toLatin1(); + return QLocale::c().toString(dt.toUTC(), u"ddd, dd MMM yyyy hh:mm:ss 'GMT'").toLatin1(); } QT_END_NAMESPACE -- cgit v1.2.3