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2018-08-01Encapsulate some public static methods in CFXJSE_FormCalcContext.Lei Zhang
They are only used inside CFXJSE_FormCalcContext. Move into an anonymous namespace. Change-Id: Ib8a0ff9b90cf951459c04655bedada3bdb1979a4 Reviewed-on: https://pdfium-review.googlesource.com/39090 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-08-01Refactor PatternStringType().Lei Zhang
Return a std::pair instead of having a non-const ref out parameter. Use early returns / continues to simplify code. Change-Id: I093fe667d31447ed42b8d44e354405094adaf8fd Reviewed-on: https://pdfium-review.googlesource.com/39070 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-08-01Combine date/time format methods in CFXJSE_FormCalcContext.Lei Zhang
Also fix C++ style errors. Change-Id: Ia4b815c2fa8430791bb44a218ef93f8efde8c3af Reviewed-on: https://pdfium-review.googlesource.com/39050 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-07-30Don't static_cast<>(this) to subclass in CXFA_LayoutItem methods.chromium/3508Tom Sepez
Instead, move the methods to the subclass where they belong. Fix IWYU in CJX_Object.h to fix compilation. Change-Id: I4c71f28235b9cf5000e9ddaf33d6602baf22205f Reviewed-on: https://pdfium-review.googlesource.com/39170 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-30Fix a misspelling of "locale".Lei Zhang
Change-Id: I3fdc6d473f08835b6caeacbbd583bb651a9c5678 Reviewed-on: https://pdfium-review.googlesource.com/39111 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-07-28Remove CXFA_TraverseStrategy_ContentLayoutItem.chromium/3507chromium/3506Tom Sepez
It makes illegal casts and requires its callers to double-check the type validity of results before use. Instead, use the parent class iterator and perform checked casts. No functional difference, since it looks like the requisite checks were being made in all places. Make one "using" visible to other files to save some verbosity. Change-Id: I894ca15b4bdddd4723b787663950a58bc58b7f06 Reviewed-on: https://pdfium-review.googlesource.com/39030 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-07-28Add CPDSDK_Annot::AsBAAnnot() checked downcast methodTom Sepez
XFA introduces some additional subclasses, so it doesn't hurt to be sure in all cases before making a static cast. Change-Id: I7447ca58be0b57201b39ba40a3fc5f47505cee58 Reviewed-on: https://pdfium-review.googlesource.com/39013 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-27Tag XFA data bound to V8 Objects.Tom Sepez
Because we don't want to trust anything V8 gives us back. Use a deep namespace so we can have a short declaration in the structs, but avoid collisions. Change-Id: Ibb832a5dcd34c652159c3343dd70c9e2ee561537 Reviewed-on: https://pdfium-review.googlesource.com/38972 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-26Use moar ToXMLElement() in place of static_cast<>.Tom Sepez
Introduces checks in a few new places, but mainly just consolidates checking/casting logic. Change-Id: I634a03060d254db099972c6978249992367e146c Reviewed-on: https://pdfium-review.googlesource.com/38900 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-26Be more careful casting to widget subclasses.Tom Sepez
Part of the effort to reduce unchecked static casts. Change-Id: I1bff1c53aa7c5804660de4b65cf01523d70fcbb7 Reviewed-on: https://pdfium-review.googlesource.com/38896 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-26Fix usage of deprecated V8 Value::ToString methodDan Elphick
Value::ToString is deprecated since the Isolate is inferred from the memory address of the object being converted to a string which will soon not be reliable. As such this method will be removed in the very near future. Change-Id: I1e5a1a0464f2052cc3aa5eeb1ddbdb7b0a9222d3 Reviewed-on: https://pdfium-review.googlesource.com/38914 Commit-Queue: Jochen Eisinger <jochen@chromium.org> Reviewed-by: Jochen Eisinger <jochen@chromium.org>
2018-07-25Introduce ToXMLElement() checked downcast helper functionTom Sepez
And use it in place of ASSERT() that the type was correct. Since we can check it, doing so at runtime may help avoid type confusion, and we'll get a nice safe SEGV if the asserted condition ever fails. Change-Id: I46b65a4b70e819a670d7cad7966e0d100f0d9a63 Reviewed-on: https://pdfium-review.googlesource.com/38810 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-25Move CXFA_ThisProxy helper to CXFA_Object.Tom Sepez
Because the other helpers are declared here. Rename VariablesThis to ThisProxy in a few places; VariablesThis is a slightly different concept (see GetVariablesThis()). Then introduce helper for CXFA_List subclass as well. Remove unused const version of some helpers. Change-Id: Ia328d8cd170a8b97015e98c1c770fa8a44810455 Reviewed-on: https://pdfium-review.googlesource.com/38670 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-24Fix UAF in CPDFSDK_Widget::GetMixXFAWidget().chromium/3502Henrique Nakashima
Do not allow instanceManager methods to run in Foreground XFA forms. They are static, and their widgets should not be inserted or removed. See "XML Forms Architecture (XFA) Specification Version 3.3", page 272. Bug: chromium:860697 Change-Id: Ia96834e085ee508618ca4dcb2bd5271466369ede Reviewed-on: https://pdfium-review.googlesource.com/38751 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2018-07-24Rename JS_{METHOD,PROP} to JSE_{METHOD,PROP}Tom Sepez
Because they are too easily confused with non-XFA JS_STATIC_PROP despite being on the XFA side. The JSE_ prefix mirrors the fxjs/fxjse split ("e" presumably standing for "extension" or some such) between the non-xfa/xfa V8 adapter layer. Rename fxjs/{cjx_define.h => jse_define.h}, since there aren't any symbols starting with |CJX| in it. Fix some IWYU for jse_define.h No functional changes. Change-Id: I6a0b2b6fe6ef1b564b0bfa2fa7ba317a0cea0953 Reviewed-on: https://pdfium-review.googlesource.com/38730 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-24Remove lpClass argument from FXJSE_RetrieveObjectBinding()Tom Sepez
In turn, it too is always nullptr. This shows that the V8 side check for hasInstance() was never being applied. We will augment this with C++ side checks down the road, since we don't want to trust V8 anyways. Change-Id: Iee38f32af9561783dbf253d798bd975029f3a4a2 Reviewed-on: https://pdfium-review.googlesource.com/38594 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-23Tighten up ThisProxy casts.Tom Sepez
Previous CLs have shown that the "lpClass" checks aren't sufficient here, so ensure we are always checking C++ enum value before downcasting this type. Change-Id: I418127c5e7131e0a3363363a60d1976719d6837c Reviewed-on: https://pdfium-review.googlesource.com/38550 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-23Remove unused CFXJSE_Arguments::GetObject()chromium/3501Tom Sepez
Insert another unowned ptr along the way. Change-Id: I953baa3448282fd4f655bb99524f131f66b7ed86 Reviewed-on: https://pdfium-review.googlesource.com/38593 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-23Remove argument from CFXJSE_Value::ToHostObject()Tom Sepez
Like the other cases, it is always nullptr. Change-Id: I280f25899ffbe5e35f4ef3342aec7896edf3e1f2 Reviewed-on: https://pdfium-review.googlesource.com/38592 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-23Remove second argument to CFXJSE_Engine::ToObject()Tom Sepez
It, too, is always passed as nullptr. Change-Id: I2573bea4cc33f48c13979026ea8ae42b368ce8a5 Reviewed-on: https://pdfium-review.googlesource.com/38590 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-23Replace CFXJSE_HostObject::type_ with polymorphic conversion methodsTom Sepez
More foolproof technique, and saves one word in every instance at a cost of two pointers in every subclass vtable. Change-Id: Ied4f91d4d203b5e6d83abe751159eb7e55489bb5 Reviewed-on: https://pdfium-review.googlesource.com/38530 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-23Remove second argument to ToJSContext().Tom Sepez
It's always passsed as nullptr. Rename function to ToFormCalcContext() for clarity while we're at it. Change-Id: I96581c6b86b7ac7b48b60429e2144f16af7e46ca Reviewed-on: https://pdfium-review.googlesource.com/38570 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-19Remove some unused default values in cfxjse_context.h.Tom Sepez
Callers already explicitly pass nullptr as needed. Change-Id: I8cf9d4951ec1b75cf90dccc1b53bfcd6fb6a42e6 Reviewed-on: https://pdfium-review.googlesource.com/38450 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-19Change some ASSERTS() to early returns in cfxjse_class.cppTom Sepez
Given the issues we've seen on the non-XFA side, be more careful about using V8-provided data on the XFA side. Change-Id: I13b7fa9ac852be74c8135410734445b2c9a23c97 Reviewed-on: https://pdfium-review.googlesource.com/38430 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-17Check for global flag on global proxy objects.Tom Sepez
Second line of defense for issue in the associated bug. Bug: chromium:862059 Change-Id: I58ba890dfe02c89dd6bcfa23e2e116e107f9adbc Reviewed-on: https://pdfium-review.googlesource.com/37991 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-16Make JSGetObject<C>() return UnownedPtr<C>.Tom Sepez
This a convenient place to assert that the callback that is about to be invoked on the object doesn't destroy the object at any point during its execution. Change-Id: Iacb9d4e01603cc6bf316b00fdd062955c903ca5c Reviewed-on: https://pdfium-review.googlesource.com/37970 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-16Use UnownedPtr<> to v8::Isolates.Tom Sepez
Isolates are long-lived, but this may catch a few things. Introduce CFX_V8IsolateDeleter for unique_ptr<v8::Isolate> usage. Fix Dispose()/SetIsolate(nullptr) ordering in cjs_runtime.cpp Remove one unused isolate member. Flip protected -> private in one place. Change-Id: I26cdd120f799192e93b0d9d04dcde8f348dc21f3 Reviewed-on: https://pdfium-review.googlesource.com/37931 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-16Alert embedder when attempting to save XFA formRyan Harrison
This CL adds an experimental callback to the form fill API that allows PDFium to signal to the embedder that an attempt call save occurred. The embedder is responsible for showing an appropriate UI when this occurs. When PDF saving is implemented the API can be removed. BUG=pdfium:953 Change-Id: Iba30f4d0547fe773b793e499995be426626092a0 Reviewed-on: https://pdfium-review.googlesource.com/35870 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2018-07-12Move CJS_Field private methods into an anonymous namespace.Lei Zhang
Change-Id: Ib758cfc97a4e2bb94f58afa999608f77c0972336 Reviewed-on: https://pdfium-review.googlesource.com/37730 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-07-12Remove parameter to CJS_Field::GetFormFields().Lei Zhang
It is always the same value. Also mark ValueIsOccur() as const. Change-Id: Ifdfc33f8213ed272e7d36e1e4c2de1d2070fbcbd Reviewed-on: https://pdfium-review.googlesource.com/37712 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-07-12Add CJS_Field::GetFirstFormField().Lei Zhang
Its what many CJS_Field methods really want to do. Change-Id: I18cf61a15be7b783b795c61a5c26c42ef5d82127 Reviewed-on: https://pdfium-review.googlesource.com/37711 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-07-12Add more helper functions to check field types in CJS_Field.Lei Zhang
These types are commonly checked together. - IsComboBoxOrListBox() - IsComboBoxOrTextField() Change-Id: Ia363bd9822f8dfe61e11cf552ec516f9403a8fcc Reviewed-on: https://pdfium-review.googlesource.com/37673 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-07-12Add a IsCheckBoxOrRadioButton() helper for CJS_Field.Lei Zhang
Change-Id: I0e06d641d482cbcd2cf33f327d9504e55a772157 Reviewed-on: https://pdfium-review.googlesource.com/37672 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-07-12Use pdfium::Optional in CJS_Return.Lei Zhang
Change-Id: Idfe70f86fbaf341ba6b197689a65ac722e671f39 Reviewed-on: https://pdfium-review.googlesource.com/37674 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-07-12Use JSGetObject() in even more places.Lei Zhang
BUG=chromium:862059 Change-Id: Id354a5e6dbc037dbb76f901de8311a4f4a4d8940 Reviewed-on: https://pdfium-review.googlesource.com/37670 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-07-11Use JSGetObject() in more places.chromium/3489Lei Zhang
Change-Id: I7f26709bdad56cc2712f21e8e644be7c53ec5ec4 Reviewed-on: https://pdfium-review.googlesource.com/37513 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-07-11Check GetObjDefnID() in various JS functions.Lei Zhang
Consolidate all the checks into JSGetObject(), and add GetObjDefnID() methods for classes that are missing it. BUG=chromium:862059 Change-Id: I2c2b725a01dcd259ef712d2513fcf740cc410b15 Reviewed-on: https://pdfium-review.googlesource.com/37510 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-07-11Fix some nits in fxjs code.Lei Zhang
Change-Id: I533a702947ba371cbc7971d88a3b7dabbc81a298 Reviewed-on: https://pdfium-review.googlesource.com/37511 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-07-03Use unowned ptr to Node from outside XFA node tree.chromium/3481Tom Sepez
Change-Id: Idcd992224fc5411c97f3001293af83a6c581e695 Reviewed-on: https://pdfium-review.googlesource.com/36991 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-02Kill a malloc/memcpy in cjs_document.cppTom Sepez
Change-Id: Icdbdd1c0e5052490c251009b5b2b31b2c46fb580 Reviewed-on: https://pdfium-review.googlesource.com/36833 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-02Virtualize Observable<T>::ObservedPtr::OnDestroy() for CPDF_Avail cleanupTom Sepez
This enables more complicated cleanup when an observed object is destroyed. Use it to make documents observable and to allow the CPDF_Avail to cleanup without the need for intermediate class. Change-Id: I3a8e758b7ff542e0a58710eff1ac8017205cbd45 Reviewed-on: https://pdfium-review.googlesource.com/36373 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-06-29Use UnownedPtr<CXFA_Node> or comment raw pointers as tree nodes.chromium/3479chromium/3478Tom Sepez
Part 2. Change-Id: I26fe434dac3c3f5186414440acc2a495a5f14091 Reviewed-on: https://pdfium-review.googlesource.com/36670 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-06-29Use UnownedPtr to CXFA_Node from outside the treechromium/3477Tom Sepez
Comment raw pointers subject to nondeterministic tree destruction order as such to avoid re-attempting to convert to the unowned mechanism. Change-Id: Ia9fe3c8a2729dc1e2b1de4a8c62ae3d2c3d7ec0a Reviewed-on: https://pdfium-review.googlesource.com/36635 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-06-28Fix logic error in CJX_InstanceManager::count()chromium/3476Tom Sepez
Calling the Setter when the Getter was intended results in a segv when accessing the empty return value. Bug: 353450 Change-Id: If3d35de1c5e2a24d11690fd323253f1103ee9ab5 Reviewed-on: https://pdfium-review.googlesource.com/36431 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-06-28Replace DCHECKs with ASSERTs.Lei Zhang
Change-Id: I0f2bf1cb44b4cba872a719f0a75d8776f413812c Reviewed-on: https://pdfium-review.googlesource.com/36250 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-06-26Use ObservedPtr for CJS_Field::m_pJSFieldTom Sepez
Bug: 856354 Change-Id: Ic0ac4d189dff6f4688a6c5feb745fe8c5a5ed4bb Reviewed-on: https://pdfium-review.googlesource.com/36150 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-06-22Avoid some duplicate const/non-const getters.Tom Sepez
Getters should nearly always be const when they return a non-const pointer to an unowned object. Saves a bit of code along the way. Grep for similar occurrences and add "const". Change-Id: I492bf962a7d62452fa40310146226dc0c8ebb753 Reviewed-on: https://pdfium-review.googlesource.com/35890 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-06-21Clean up constant values for JS alert and beepRyan Harrison
Define constant values in the public API for the valid values of alert button type, alert icon type, and beep type. Replace various magic numbers through out the code base using these values. Also replace the XFA specific versions with an enum class that is guaranteed to have the same values, instead of #defines that just happen to. This CL does not attempt to add error checking on these values, since it currently doesn't exist so adding it may cause regressions. Change-Id: Ief3aee2a4ad419691c18fc1dba8b984ad222141b Reviewed-on: https://pdfium-review.googlesource.com/35730 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-06-21Use the length of calculated string instead of sourceRyan Harrison
In this function a string is converted to UTF8, if there are non-printing characters in the original string, the generated string will be shorter. Thus using the original string length for iteration range will cause an OOB read. BUG=chromium:854623 Change-Id: I338005476c3de529709f3eae6892d27a6c7f2263 Reviewed-on: https://pdfium-review.googlesource.com/35810 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2018-06-21Pass output parameters as pointers in ijs_event_contextTom Sepez
It is hard to tell if there is some unsavory stuff going on with references otherwise. Avoids some const_casts in the process. Add some UnownedPtrs along the way to check caller's storage duration. Change-Id: Ic8d85802083f0b27e07993ea25f8f1c15fca1712 Reviewed-on: https://pdfium-review.googlesource.com/35750 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
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