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path: root/xfa/fxfa/fm2js/cxfa_fm2jscontext.cpp
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2017-11-01Move some XFA JS code into fxjs/Dan Sinclair
This CL renames cxfa_scriptcontext to cfxjse_engine and cxfa_fm2jscontext to cfxjse_formcalc_context. From reading the code, the script context appears to handle the v8 setup and object code. The formcalc context code is related to handling the JS code generated from the transpiler. I, think, these new names make the intended usage clearer. They also move the code into fxjs/ to keep along side the rest of the JS code. Change-Id: I50619fbe48ca1f553a44cf0e0cb0210be8e45e4f Reviewed-on: https://pdfium-review.googlesource.com/17130 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-10-26Consistently apply JS size checkRyan Harrison
This CL makes the use of CXFA_IsTooBig consistent and universal across all of the ToJavascript and related methods. Previously this method was only applied in some calls. It is now being tested as a precondition and postcondition on every call and as a post condition for the entire translation process. There are some size checks within methods that potentially generate large amounts of JS that have been left in. BUG=chromium:752920 Change-Id: I1a8bfe21e0a17c2e47592fc6017060243674f1bc Reviewed-on: https://pdfium-review.googlesource.com/16812 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-10-25Add in depth check for ToJavascript and related methodsRyan Harrison
There exists a similar check for the parser, but it doesn't catch all cases of excessive memory usage, since a single parse step can generate multiple expressions that need to be converted or other cases where the parse depth doesn't match the emission depth later. Due to the expressions appearing in two different inheritence hierachies the depth information needs to be stored outside of the classes, thus the new depth class. Another way to handle this would be to change the method calls to take in a visitor object that tracks depth. This would require significant reworking of some of the code, so I am going to file a bug about doing that conversion as a cleanup. BUG=chromium:752495 Change-Id: Ica7c9b60ecf1e17530ea88b7bfb01582c63043be Reviewed-on: https://pdfium-review.googlesource.com/16752 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2017-09-27Remove FXSYS_strlen and FXSYS_wcslenchromium/3226Ryan Harrison
With the conversion of internal string sizes to size_t, these wrappers are no longer needed. Replacing them with strlen and wcslen respectively. BUG=pdfium:828 Change-Id: Ia087ca2ddaf688a57ec9bd9ddfb8533cbe41510d Reviewed-on: https://pdfium-review.googlesource.com/14890 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-09-27Remove FX_STRSIZE and replace with size_tRyan Harrison
BUG=pdfium:828 Change-Id: I5c40237433ebabaeabdb43aec9cdf783e41dfe16 Reviewed-on: https://pdfium-review.googlesource.com/13230 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-09-21Rename CFX_RetainPtr to RetainPtrDan Sinclair
This CL renames CFX_RetainPtr to RetainPtr and places in the fxcrt namespace. Bug: pdfium:898 Change-Id: I8798a9f79cb0840d3f037e8d04937cedd742914e Reviewed-on: https://pdfium-review.googlesource.com/14616 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-18Convert string class namesRyan Harrison
Automated using git grep & sed. Replace StringC classes with StringView classes. Remove the CFX_ prefix and put string classes in fxcrt namespace. Change AsStringC() to AsStringView(). Rename tests from TEST(fxcrt, *String*Foo) to TEST(*String*, Foo). Couple of tests needed to have their names regularlized. BUG=pdfium:894 Change-Id: I7ca038685c8d803795f3ed02545124f7a224c83d Reviewed-on: https://pdfium-review.googlesource.com/14151 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-09-06GUID cleanupDan Sinclair
This CL removes fx_guid and inlines into CXFA_FM2JSContext as needed. Change-Id: I08a1f03fd4be46730eee24ab73b8b5c0daf9cd7d Reviewed-on: https://pdfium-review.googlesource.com/13094 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-09-05Split fx_guid from fx_extensionDan Sinclair
This CL splits the GUID code out of fx_extension into an fx_guid.h file. Change-Id: I915538ff98601efb07595264eff6435729193177 Reviewed-on: https://pdfium-review.googlesource.com/13090 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-01Fix integer overflow in Buffer_itoa when passing INT_MIN.Henrique Nakashima
Bug: chromium:760034 Change-Id: Id0862749b1454e065de4de7d746a27e78ac58e30 Reviewed-on: https://pdfium-review.googlesource.com/12730 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-30Move CFX_WideTextBuf out of fx_basicDan Sinclair
This CL moves CFX_WideTextBuf to its own files and updates includes as needed. Change-Id: Ibe66ecf3e66f8f01dd8e9eaf6b467588be86ad4f Reviewed-on: https://pdfium-review.googlesource.com/12413 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-08-30Convert int* references to FX_STRSIZERyan Harrison
Through out the code base there are numerous places where variables are declared using a signed integer type when interacting with the string classes, since they assume that FX_STRSIZE is 'int'. As part of changing the underling type of FX_STRSIZE to be unsigned, these locations are being changed to use FX_STRSIZE. This is necessary as part of converting the type, but has been broken off into a separate CL, since it should be low risk. Some related cleanups that are low risk are included as part of this CL. BUG=pdfium:828 Change-Id: Ifaae54ad195ccde0fe8672f71271d29a6ebd65fd Reviewed-on: https://pdfium-review.googlesource.com/12210 Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-08-23Convert string Find methods to return an OptionalRyan Harrison
The Find and ReverseFind methods for WideString, WideStringC, ByteString, and ByteStringC have been converted from returning a raw FX_STRSIZE, to returning Optional<FX_STRSIZE>, so that success/failure can be indicated without using FX_STRNPOS. This allows for removing FX_STRNPOS and by association makes the conversion of FX_STRSIZE to size_t easier, since it forces checking the return value of Find to be explictly done as well as taking the error value out of the range of FX_STRSIZE. New Contains methods have been added for cases where the success or failure is all the call site to Find cared about, and the actual position was ignored. BUG=pdfium:828 Change-Id: Id827e508c8660affa68cc08a13d96121369364b7 Reviewed-on: https://pdfium-review.googlesource.com/11350 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-15Remove GetAt from string classesRyan Harrison
This method duplicates the behaviour of the const [] operator and doesn't offer any additional safety. Folding them into one implementation. SetAt is retained, since implementing the non-const [] operator to replace SetAt has potential performance concerns. Specifically many non-obvious cases of reading an element using [] will cause a realloc & copy. BUG=pdfium:860 Change-Id: I3ef5e5e5a15376f040256b646eb0d90636e24b67 Reviewed-on: https://pdfium-review.googlesource.com/10870 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-01Replace raw value for constant error value in string operationsRyan Harrison
Currently Find() and other methods that return a FX_STRSIZE return -1 to indicate error/failure. This means that there is a lot of magic numbers and magic checks floating around. The standard library for similar operations uses a npos constant. This CL implements FX_STRNPOS, and replaces usages of magic number checking. It also does some type cleanup along the way where it was obvious that FX_STRSIZE should be being used. Removing the magic numbers should make eventually changing FX_STRSIZE to be unsigned easier in the future. BUG=pdfium:828 Change-Id: I67e481e44cf2f75a1698afa8fbee4f375a74c490 Reviewed-on: https://pdfium-review.googlesource.com/9651 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-07-28Convert calls to Mid() to Left() or Right() if possibleRyan Harrison
The various string/byte classes support Mid(), Left(), and Right() for extracting substrings. Mid() can handle all possible cases, but Left() and Right() are useful for common cases and more explicit about what is going on. Calls like Mid(offset, length - offset) can be converted to Right(length - offset). Calls like Mid(0, length) can be converted to Left(length). If the substring being extracted does not extend all the way to one of the edges of the string, then Mid() still needs to be used. BUG=pdfium:828 Change-Id: I2ec46ad3d71aac0f7b513e103c69cbe8c854cf62 Reviewed-on: https://pdfium-review.googlesource.com/9510 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-07-27Remove single param Mid() method from string classesRyan Harrison
This support is being removed from CFX_ByteString, CFX_ByteStringC, CFX_WideString, and CFX_WideStringC. This standardizes all of these classes to only have one Mid method that takes in 2 params, offset and count. Count now must be positive. The old behaviour of calculating the length for the user if -1 is passed in for the count has been removed. This work is in preperation for converting these classes to not accept negative lengths anywhere and thus make the underlying size type unsigned. BUG=pdfium:828 Change-Id: I5f15e7b7b00b264231817f143e2da88ee6f69e7b Reviewed-on: https://pdfium-review.googlesource.com/9430 Reviewed-by: (OOO Jul 28 - Aug 8) dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-07-27Move CXFA_FMParse to CFXA_FMParserRyan Harrison
Minor nit I had with this code and want to fix. Bug: Change-Id: I2494667d580bf982a4359153123d9e8afb75e349 Reviewed-on: https://pdfium-review.googlesource.com/9370 Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: (OOO Jul 28 - Aug 8) dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-07-27Remove CFX_ByteTextBuf from cxfa_fm2jscontext.cppHenrique Nakashima
Bug: pdfium:731 Change-Id: I3b7e4e88d44afcb8590ce4b7e7de7c0eccdc623a Reviewed-on: https://pdfium-review.googlesource.com/7350 Reviewed-by: (OOO Jul 28 - Aug 8) dsinclair <dsinclair@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2017-07-27Rewrite FMLexer to use nullptr for errorsRyan Harrison
This CL rewrites how FMLexer returns errors, instead of having a flag that gets flipped and needs to be checked, it now returns nullptr for NextToken() when an error occurs. The Lexer's behaviour has also been changed to only return nullptr once an error has occurred, instead of advancing the lexing on further calls. FMParse now checks the returned value from the lexer instead of testing the error flag on the parser object. For any operation that might cause the error state of the parser to change, i.e. consuming a token, an error check has been added. In the event this check fails the related function returns nullptr. This will cause the parse to short circuit and exit. BUG=pdfium:814 Change-Id: I669012c4732c18d13009be7cd7bf1ae682950904 Reviewed-on: https://pdfium-review.googlesource.com/8950 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: (OOO Jul 28 - Aug 8) 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>
2017-07-07Remove 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>
2017-06-30Remove 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>
2017-06-14Fix 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>
2017-05-25Fix 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 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>
2017-05-18Remove 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>
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