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40 lines
1.8 KiB
Diff
40 lines
1.8 KiB
Diff
From 1f40ed553e618c3b0511c7db4b4fd26c2d2b65bf Mon Sep 17 00:00:00 2001
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From: Peter Hartmann <phartmann@blackberry.com>
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Date: Thu, 25 Jul 2013 12:05:29 -0400
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Subject: [PATCH] QHttpMultiPart: fix data corruption in readData method
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When readData() is called repeatedly, we need to keep track which
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part of the multipart message we are currently reading from.
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Hereby we also need to take the boundary size into account, and not
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only the size of the multipart; otherwise we would skip a not
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completely read part. This would then later lead to advancing the
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read pointer by negative indexes and data loss.
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Task-number: QTBUG-32534
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Change-Id: Ibb6dff16adaf4ea67181d23d1d0c8459e33a0ed0
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Reviewed-by: Jonathan Liu <net147@gmail.com>
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Reviewed-by: Shane Kearns <shane.kearns@accenture.com>
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(cherry picked from qtbase/af96c6fed931564c95037539f07e9c8e33c69529)
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Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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---
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src/network/access/qhttpmultipart.cpp | 3 +-
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tests/auto/qnetworkreply/tst_qnetworkreply.cpp | 44 ++++++++++++++++++++++++
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2 files changed, 46 insertions(+), 1 deletions(-)
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diff --git a/src/network/access/qhttpmultipart.cpp b/src/network/access/qhttpmultipart.cpp
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index 635129a..b25e917 100644
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--- a/src/network/access/qhttpmultipart.cpp
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+++ b/src/network/access/qhttpmultipart.cpp
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@@ -488,7 +488,8 @@ qint64 QHttpMultiPartIODevice::readData(char *data, qint64 maxSize)
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// skip the parts we have already read
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while (index < multiPart->parts.count() &&
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- readPointer >= partOffsets.at(index) + multiPart->parts.at(index).d->size())
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+ readPointer >= partOffsets.at(index) + multiPart->parts.at(index).d->size()
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+ + multiPart->boundary.count() + 6) // 6 == 2 boundary dashes, \r\n after boundary, \r\n after multipart
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index++;
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// read the data
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--
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1.7.1
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