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2017-07-25Clean up data passing in FormCalc Lexerchromium/3167Ryan Harrison
This CL removes the pattern used in the lexer of passing the lexing member variables around as args to methods. Instead it uses the fact that they are member variables in the methods. This CL also includes renaming of variable and function names to remove unneeded details or make them more precise. BUG=pdfium:814 Change-Id: Id4c592338db9ff462835314252d39ab3b4b2b2ab Reviewed-on: https://pdfium-review.googlesource.com/8850 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-07-24Rename FMLexer methods to be more descriptiveRyan Harrison
The existing methods had either very bare passive or in some cases misleading names, so this CL changes them active names that describe what they do. This also extracts the IsKeyword method into a helper function since it is actually static. BUG=pdfium:816 Change-Id: I47a113bc9ea8d88a77822a4441266ec56e6b4cbc Reviewed-on: https://pdfium-review.googlesource.com/8730 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-07-24Remove extracting characters from inputRyan Harrison
Throughout the lexer there is use of a pattern where a character is extracted from the location currently being pointed at in the input and tests are done on this value. This is uneeded, since normally the pointer isn't being modified while the character is stored, so the pointer can be dereferenced directly. This CL also cleans ups the implementation of string extraction from the input to be easier to read, since it did depend on the character being extracted to work. The IsFooCharacter methods are also changed to take in a character instead of a pointer, since they are only testing the character value not the pointer. BUG=pdfium:814 Change-Id: I8eda01e0af59ff1f6c6e97d6fb504856c7a08a24 Reviewed-on: https://pdfium-review.googlesource.com/8690 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-07-24Move xfa/fxfa/app to xfa/fxfachromium/3166Dan Sinclair
There currently exists a weird split where some files exist in xfa/fxfa and some files exist in xfa/fxfa/app. This CL removes the app/ folder and moves all files up to the parent directory. Change-Id: I00c87851a1ebc5a7a636eb9a17b58ba3f1708a84 Reviewed-on: https://pdfium-review.googlesource.com/8810 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-07-19Rename StringCs c_str() to unterminated_c_str().Tom Sepez
Since there is no guarantee of termination if the StringC was extracted from a snippet of another string. Make it more obvious that things like strlen(str.unterminated_c_str()) might be a bad idea. Change-Id: I7832248ed89ebbddf5c0bcd402aac7d40ec2adc2 Reviewed-on: https://pdfium-review.googlesource.com/8170 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2017-07-18Correct lexer handling of FormCalc identifiersRyan Harrison
This makes the lexer stricter on valid characters for identifiers, and conform to the grammar in the FormCalc spec. This should remove a class of inputs that ClusterFuzz is attempting that are breaking later stages of the transpile. BUG: chromium:736234, pdfium:783, pdfium:784 Change-Id: I3987d6778a82b71d768fa751035993c0af2577ee Reviewed-on: https://pdfium-review.googlesource.com/8010 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-07-07Remove a static initializer introduced in commit 573b10a.Lei Zhang
Change-Id: Ic81df89078241c75ae2da6309b22022ba225100f Reviewed-on: https://pdfium-review.googlesource.com/7370 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-07-05Extract comparison functions from std::lower_bound argsRyan Harrison
Cleanup of code I changed earlier last week, to match the style recommended in later reviews and make it more readable. BUG=pdfium:786 Change-Id: I2ff8b980a229718e389ad1a8063bd5059aedb66c Reviewed-on: https://pdfium-review.googlesource.com/7212 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-07-04Removed hand rolled bsearch from IsKeyword methodRyan Harrison
BUG=pdfium:786 Change-Id: I7a852566cdde301ee896c12d9d29043047c31ad4 Reviewed-on: https://pdfium-review.googlesource.com/7211 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-06-30Remove hand rolled bsearch from HTMLSTR2CodeRyan Harrison
BUG=pdfium:786 Change-Id: I0779dccb6db0e6ea3933279914153ef7961d9a5b Reviewed-on: https://pdfium-review.googlesource.com/7152 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-06-30Remove hand rolled bsearch from HTMLCode2STRRyan Harrison
BUG=pdfium:786 Change-Id: I84f4012b5225f81df604fcc6e0836ac5d19f1414 Reviewed-on: https://pdfium-review.googlesource.com/7153 Reviewed-by: Nicolás Peña <npm@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-06-29Cleaning up SomMethod handling in fm2jsRyan Harrison
Removing hand rolled hash table and binrary search. BUG=pdfium:786 Change-Id: Iac18f02c9f560f484b974762474dbb51597d2353 Reviewed-on: https://pdfium-review.googlesource.com/7092 Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-06-29Cleanup call expression handling in fm2jsRyan Harrison
Remove handling of arbitrary function calls, and only allow supported function calls. Issues with the lexer being overly permissive led to large blobs of javascript being dropped into the output. Specifically driver code was assuming that anything marked as a function would just be an identifier that could be inserted into the javascript, but the lexer marks things like ()()() as a function, which would lead to the following JS being inserted as an identifier. This change is intended to be a patch for the specific issue that was being seen from the fuzzer test, and further work will be needed to make the lexer more strict. BUG=724913 TEST=Ran fuzzer test case. Ran unittests,embeddertests,corpustests. Change-Id: Ib7d9239bf6fece853bea0f4915ee4ad72d3cd290 Reviewed-on: https://pdfium-review.googlesource.com/7032 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-06-28XFA: Add test to show Oneof() works correctly.Lei Zhang
The new embedder test shows Oneof() works, whereas the corpus test does not. It turns out the corpus test was bad, and trying to fix it exposed a different bug. So roll DEPS for the testing corpus anyway to get improved tests, but keep the suppression for now. BUG=pdfium:781 Change-Id: I3cc6b9a414384c917f205eff064c5dd2175d09fe Reviewed-on: https://pdfium-review.googlesource.com/6973 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-06-14Fix bad format string in CXFA_FM2JSContext.Lei Zhang
PDFium's vswprintf() is based on the win32 version to be consistent across platforms. On Windows, %s has different meanings depending on whether the printf() variant is wide or not. BUG=chromium:732533 Change-Id: I7437ecd253da1234728c1e0897f02b7f907aada8 Reviewed-on: https://pdfium-review.googlesource.com/6550 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-06-02Prevent OOB access in CXFA_FM2JSContext::IsIsoTimeFormat().Lei Zhang
Change-Id: I3fe0460f3a4cfd7d48ccfc79d0256fc83d7fbac8 Reviewed-on: https://pdfium-review.googlesource.com/6235 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-06-01Tag CFXJSE_HostObject sub-classes.Tom Sepez
CXFA_FM2JSContext and CXFA_Object both subclass CFXJSE_HostObject. When a CFXJSE_HostObject is obtained from an opaque pointer inside a V8 object internal slot, there is no way to distinguish one from the other. Bug: 728158 Change-Id: Iabc648e8b7226e2819d8795227442c3f6c61a793 Reviewed-on: https://pdfium-review.googlesource.com/6211 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-05-25Split apart remaining xfa/fxfa/app filesDan Sinclair
This CL splits the remaining files in xfa/fxfa/app into individual files named after the classes. Change-Id: I84bd8938937641bb6897614ed15558a2682f456c Reviewed-on: https://pdfium-review.googlesource.com/6010 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-25Mass conversion of all const-lifetime class membersTom Sepez
Sed + minimal conversions to compile, including moving some constructors into the .cpp file. Any that caused ASAN issues during the tests were omitted rather than trying to resolve the underlying issue. Change-Id: I00a421f33b253eb4071ffd9af3f2922c7443b335 Reviewed-on: https://pdfium-review.googlesource.com/5891 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-05-25Fix FM2JSContext Round return typeDan Sinclair
This Cl fixes the return type of the Round method to return a double instead of a string. Change-Id: I740e375bdedfe22cb9f81d4beeaa079eac64b1bd Reviewed-on: https://pdfium-review.googlesource.com/5896 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-05-25Enable remaining boolean FM2JSContext testsdan sinclair
This CL updates the return type of the remaining boolean tests to be Integer and enables the tests. Change-Id: Ie2856ad31d17ffb496f33e6969912d0aae9678c5 Reviewed-on: https://pdfium-review.googlesource.com/5895 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-25Enable the FM2JSContext Exists testdan sinclair
This Cl fixes the Exists test of FM2JSContext to handle the return type of Integer instead of Boolean. Change-Id: I51c43e22eff5330de5ab5e63a925006af483f0ab Reviewed-on: https://pdfium-review.googlesource.com/5894 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-25Enable FM2JSContext Choose testsdan sinclair
This Cl enables the Choose tests for FM2JSContext. The Choose tests always return a String. Change-Id: I29b3ce4ed38f94886c6036f3766182fecb6e787b Reviewed-on: https://pdfium-review.googlesource.com/5893 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-25Enable most FM2JSContext boolean testsdan sinclair
This CL enables most of the FM2JSContext boolean tests. The return type is updated to Integer from Boolean. Change-Id: Ie3f665bd23a86e843cadb2ae8963767466bd1714 Reviewed-on: https://pdfium-review.googlesource.com/5892 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-24More FM2JSContext testsDan Sinclair
This CL adds tests for the FormCalc methods that don't require passing in a formcalc object reference. Change-Id: Ica6f15704cce525d38d25a27d1628089d2fc5a5a Reviewed-on: https://pdfium-review.googlesource.com/5691 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-23Use NOTREACHED() in more places.Lei Zhang
Change-Id: I88466943171f19259f84add69679741d44c8e123 Reviewed-on: https://pdfium-review.googlesource.com/5551 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-05-18Use UnownedPtr to check CFX_*StringC lifetimeschromium/3104Tom Sepez
Change interform to avoid temp StringC with dangling ptr. Change-Id: I8d8659973bcdf2cdbcaa6efa6012e4acce5f1604 Reviewed-on: https://pdfium-review.googlesource.com/5571 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-05-18Adding fm2js embedder testsDan Sinclair
This Cl adds the basis of the test framework to execute the javascript produced by CXFA_FM2JSContext and verify the results are correct. Change-Id: Ie46625b7e27ca0808e9cc41fdc00b7c0a212837d Reviewed-on: https://pdfium-review.googlesource.com/5651 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-05-18Remove CXFA_FMErrorInfodan sinclair
This Cl removes the CXFA_FMErrorInfo class. The message was never output, just used as a flag to determine if there was an error. The class has been replaced with a boolean. Change-Id: I1cde99ce6957f5f8c6be0755a198d80ec8378b3a Reviewed-on: https://pdfium-review.googlesource.com/5653 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-17Shorten internal JS prefixes.Dan Sinclair
This Cl shortens the prefix applied in JavaScript to reduce the size of the generated JavaScript string. Change-Id: Ica5d02cc89b17140ba42deae72484cd159f8e3e5 Reviewed-on: https://pdfium-review.googlesource.com/5590 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-17Adding CXFA_Parse unittestsDan Sinclair
This CL adds the beginning of unittests for the CXFA_Parse code. Change-Id: I06e556f1a35405bc683c536d390071917ee330a6 Reviewed-on: https://pdfium-review.googlesource.com/5556 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-17Rename formcalc files to better match contentsDan Sinclair
Most files match the contents. The expression files are named to match their base type even though they contain all the expression subclasses. Change-Id: I3b7705c7b206a9fa1afae8b677f765e8b788e84d Reviewed-on: https://pdfium-review.googlesource.com/5492 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-05-16Handle when XFA parser error handlers cannot format error messages.Lei Zhang
Limit the length of error messages to avoid string formatting failure. Simplify some CXFA_FMParse error handling code too. BUG=chromium:708428 Change-Id: I2f5fdb61349a90b3ba681dcc04a26ce0d7f2bdda Reviewed-on: https://pdfium-review.googlesource.com/5331 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-05-16Add formcalc lexer tests.Dan Sinclair
This CL adds tests for CXFA_FMLexer. Change-Id: I4cb7000212dda6d2b32211005a1c22deabb813ae Reviewed-on: https://pdfium-review.googlesource.com/5554 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-05-16Update formcalc return typesDan Sinclair
Update return types to be bools instead of ints. Make some methods private. Change-Id: I5d55c48a861f90e9bd116ef835c11cdb515002a6 Reviewed-on: https://pdfium-review.googlesource.com/5553 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-05-16Do not walk off end of formcalc stringDan Sinclair
The fm2js code takes a pointer to the input string and then walks along that pointer. There are currently no checks to verify we haven't walked off the end of the pointer into random memory. If this happens, we can end up allocating large chunks of memory and copying random bits. BUG=chromium:721533 Change-Id: Ia61fe96c1ff9eb9ded63cf8326b7be44986bd9e1 Reviewed-on: https://pdfium-review.googlesource.com/5550 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-05-16Minor xfa_lexer.cpp cleanupDan Sinclair
Remove the inc/dec/get methods that aren't helpful. Change methods to return void instead of uint32_t and make sure they set the proper error messages. Change-Id: I741316e7990a776d528625f34fd941316c524c15 Reviewed-on: https://pdfium-review.googlesource.com/5530 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-15Return unique_ptr from xfa lexer Scan() methodTom Sepez
Change-Id: I7586194b59d2c8e28fc24b698ea93f4a2ab636e2 Reviewed-on: https://pdfium-review.googlesource.com/5474 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-05-11Limit XFA FormCalc program translation size.Lei Zhang
BUG=chromium:665087,chromium:718492 Change-Id: I09e93b4167ab2c0b3b53641243aa0cbeb5b98c4f Reviewed-on: https://pdfium-review.googlesource.com/3114 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-05-10Check CXFA_FM2JSContext::Translate() return value.Lei Zhang
Remove not useful error parameter. Change-Id: I6f49a51a47c9d7f45e75a585679e15f0414aac26 Reviewed-on: https://pdfium-review.googlesource.com/5254 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-04-28CXFA_FMStringExpression: int16_t is not a good type for a string index.Tom Sepez
Use early return while we're at it. Bug: 716519 Change-Id: I4630d8b6121266c76a53f0171ba6dfd307da725a Reviewed-on: https://pdfium-review.googlesource.com/4611 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-04-25Use unique_ptr in CXFA_ScriptContext::m_mapVariableToContext.Tom Sepez
Remove unused CFXJSE_Arguments::GetRuntime(). Remove some default argument values. Make members of CFXJSE_Context private. Change-Id: Id21951f7d8d68929b2799a9d6a2cdd7a3677f52a Reviewed-on: https://pdfium-review.googlesource.com/4493 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-04-25Use fx_extension.h utilities in more places in xfa/Lei Zhang
Change-Id: Id58c313aa446ecfa223e5c8edc095586b62a61fa Reviewed-on: https://pdfium-review.googlesource.com/4455 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-04-24Use a pdfium-specific unittest main rather than gtest'sTom Sepez
We must initialize our partition allocator before calling into any test cases. We can then remove the FPDF_Test class, which did the same thing. Change-Id: I614480fa474b2032052857a02e94781f15a27a4e Reviewed-on: https://pdfium-review.googlesource.com/4473 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-04-20Cleanup the fx_extension code.Dan Sinclair
This CL cleans up the fx_extension file. The stream code was moved to fx_stream. IFX_FileAccess was removed and CFX_CRTFileAccess split to its own file. Code shuffled from header to cpp file. Change-Id: I700fdfcc9797cf4e8050cd9ba010ad8854feefbf Reviewed-on: https://pdfium-review.googlesource.com/4371 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-04-18Use Byte/WideString iteratorsTom Sepez
Change-Id: I85c8423c177fd7ecd5da90ef89419efc0f9cf44b Reviewed-on: https://pdfium-review.googlesource.com/4262 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-04-18Require unique_ptr arg for CXFA_FMLexer::SetToken()Tom Sepez
Change-Id: Id252b3b2208ac9f792220605ddc1eb3ba29e2d55 Reviewed-on: https://pdfium-review.googlesource.com/4260 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-04-13Add ability to make StringCs from std::vector<>s.Tom Sepez
Pre-cursor to using more std::vector<uint8_t> as byte buffers. The widestring test case is more complicated, where we're not sure of having any particular uint*_t type to match wchar_t. Change-Id: Ic27980f16cdbc61fac7c11f39a85eea58d19bacb Reviewed-on: https://pdfium-review.googlesource.com/4153 Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-04-12Fix string passing coventions in xfa_fm2jscontext.hchromium/3070Tom Sepez
Change-Id: Ibcb3a95a52ab67c4c9c397ff9c4eab483ef1fcc3 Reviewed-on: https://pdfium-review.googlesource.com/3954 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-04-11Avoid long assignment chain in FM parserNicolas Pena
We only parse FM right before translating to JS. Our current implementation of assignment will duplicate to first expression's ToJavascript. So having a long chain of assignments will result in a huge ToJavascript. Bug: chromium:665087 Change-Id: I542371b5787113be2f2d686153ed0a6c48191bab Reviewed-on: https://pdfium-review.googlesource.com/4030 Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
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