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path: root/xfa/fxfa/fm2js/cxfa_fmparser.cpp
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2017-09-21Move CFX_AutoRestorer to fxcrt::AutoRestorerDan Sinclair
This CL renames CFX_AutoRestorer to just AutoRestorer and places in the fxcrt namespace. Bug: pdfium:898 Change-Id: Id9f36df94e95f3b2a55054bc198ca1bfd249ee3d Reviewed-on: https://pdfium-review.googlesource.com/14450 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-09-20Add in missed parse recursion depth checksRyan Harrison
Some of the calls in CXFA_FMParser on the prase recursion had been missed when adding in the parse depth limiting logic. The fuzzers found them. BUG=chromium:759295 Change-Id: Iad54beb356c4c555908797d4b58a42549c006e9e Reviewed-on: https://pdfium-review.googlesource.com/14510 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@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>
2017-08-30Split auto restorer from fx_basicDan Sinclair
This CL moves CFX_AutoRestorer into its own file, separate from fx_basic.h. Change-Id: I415cb9207416bd4744b8ac8e2d7466852db53f0a Reviewed-on: https://pdfium-review.googlesource.com/12390 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-29Fix incorrectly guarded lexer advancement in FormCalc parserRyan Harrison
BUG=chromium:752501 Change-Id: Ie9943cd80a4afa73ad9393c8bcd2aa2656a9d932 Reviewed-on: https://pdfium-review.googlesource.com/12290 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-23Reduce FM2JS parser depth limit to avoid memory exhaustionRyan Harrison
The current limit of 2000 is still causing occassional ASAN issues, reducing to 1250. BUG=chromium:757711 Change-Id: Idb07f97b01230afabcceaa23b29495432193ec64 Reviewed-on: https://pdfium-review.googlesource.com/11750 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-16Add parse depth limit to FormCalc parserRyan Harrison
Due to the recursive nature of the FormCalc parser, deeply nested expressions can lead to memory being exhausted. This check is being added to have the parser exit early instead of running out of memory. This should reduce the number of false positives about addressing issues being found by fuzzers. BUG=chromium:752433 Change-Id: I511ecfb07e32073555e1fd1658f3b8b47f1a5a91 Reviewed-on: https://pdfium-review.googlesource.com/11170 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-07-31Remove null derefence case caught by fuzzersRyan Harrison
This change also removes some variable shadowing that was going on here. BUG=chromium:750013 Change-Id: I7314166af3ecd55ea5e1105afbe171443b1b22ae Reviewed-on: https://pdfium-review.googlesource.com/9630 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>