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* QJsonDocument: Avoid overflow of string lengthsJüri Valdmann2018-05-142-0/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The added test case contains the binary JSON equivalent of ["ž"] with the modification that the string's length has been set to INT_MAX. In Value::usedStorage this length is used through the pointer d like so s = sizeof(int) + sizeof(ushort) * qFromLittleEndian(*(int *)d); Because 2 * INT_MAX is UINT_MAX-1, the expression as a whole evaluates to 2, which is considered a valid storage size. However, when converting this binary JSON into ordinary JSON we will attempt to construct a QString of length INT_MAX. Fixed by using String::isValid instead of Value::usedStorage. This method already takes care to avoid the overflow problem. Additionally, I've tried in this patch to clarify the behavior of Value::isValid a bit by writing it in a style that is hopefully more amenable to structural induction. Finally, the test case added in my previous patch had the wrong file extension and is renamed in this one. Task-number: QTBUG-61969 Change-Id: I45d891f2467a71d8d105822ef7eb1a73c3efa67a Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* QJsonDocument: Validate also zero-length objectsJüri Valdmann2018-05-041-0/+0
| | | | | | | | | | | | | | | | | | | | | | | | The added test case is the binary JSON equivalent of {"a":{"š":null}} with two modifications. First, the length of the string "š" has been corrupted to 0xFFFFFF00. Second and more import, the Base::size field of the inner object has been reset to 0. On its own the first modification would normally trigger a validation error. However, due to the second modification the Value::usedStorage for the inner object evaluates to 0, completely disabling all further validation of the object's contents. Attempting to convert this binary JSON into standard JSON will lead to the JSON writer trying to construct a QString of length 0xFFFFFF00. Fixed by validating also objects with usedStorage == 0. Task-number: QTBUG-61969 Change-Id: I5e59383674dec9be89361759572c0d91d4e16e01 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* QJsonDocument: Reject objects containing themselves in binary JSONJüri Valdmann2018-05-041-0/+0
| | | | | | | | | | The added test case is a binary JSON file describing an array which contains itself. This file passes validation even though attempting to convert it to plain JSON leads to an infinite loop. Fixed by rejecting it in validation. Task-number: QTBUG-61969 Change-Id: Ib4472e9777d09840c30c384b24294e4744b02045 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* QJsonDocument::fromRawData: Fix out-of-bounds accessJüri Valdmann2018-05-042-0/+1
| | | | | | | | | | | | | | This method takes a pointer+size pair, but begins reading through the pointer without first checking the size parameter. Fixed by checking the size parameter. A new test case is added with an empty binary json file. Although the test does not fail under normal conditions, the problem can be detected using valgrind or AddressSanitizer. Task-number: QTBUG-61969 Change-Id: Ie91cc9a56dbc3c676472c614d4e633d7721b8481 Reviewed-by: Lars Knoll <lars.knoll@qt.io> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* JSON: remove braces from UUID text representationsThiago Macieira2018-03-021-0/+2
| | | | | | | | | [ChangeLog][QtCore][QJsonValue] fromVariant() conversion now converts from QUrl and QUuid using special encoding forms to ensure best JSON compatibility. Change-Id: I56b444f9d6274221a3b7fffd150cdc5ca1f87ff1 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* QJsonValue: use the fully-encoded form of a URL in fromVariant()Thiago Macieira2018-03-021-0/+20
| | | | | | | For compatibility with other parsers that may expect it to be so. Change-Id: I56b444f9d6274221a3b7fffd150cd66390f98fd5 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Merge remote-tracking branch 'origin/5.9' into 5.11Liang Qi2018-02-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: .qmake.conf src/corelib/animation/qvariantanimation.cpp src/corelib/global/qglobal.cpp src/corelib/global/qlogging.cpp src/corelib/io/qprocess_win.cpp src/corelib/json/qjsonarray.cpp src/corelib/tools/qsimd_p.h src/corelib/tools/qtimezoneprivate_p.h src/corelib/xml/qxmlstream_p.h src/gui/kernel/qsimpledrag.cpp src/gui/kernel/qsimpledrag_p.h src/plugins/generic/generic.pro src/plugins/platforms/cocoa/qcocoamenu.mm src/widgets/styles/qmacstyle_mac.mm tests/auto/concurrent/qtconcurrentmap/BLACKLIST tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp tests/auto/corelib/tools/qdatetime/tst_qdatetime.cpp tests/auto/gui/kernel/qwindow/BLACKLIST tests/auto/widgets/dialogs/qmessagebox/BLACKLIST Change-Id: I508d686cf20f7f8cc6a7119b9bc7c3bbb505c58e
* Create corelib/serialization and move existing file formats into itThiago Macieira2018-01-265142-0/+231455
This is in preparation to adding CBOR support. We don't need yet another dir for CBOR and placing it in src/corelib/json is just wrong. Change-Id: I9741f017961b410c910dfffd14ffb9d870340fa6 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io> Reviewed-by: Lars Knoll <lars.knoll@qt.io>