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2022-04-09Replace PointerHolder with std::shared_ptr in library sources onlyJay Berkenbilt
(patrepl and cleanpatch are my own utilities) patrepl s/PointerHolder/std::shared_ptr/g {include,libqpdf}/qpdf/*.hh patrepl s/PointerHolder/std::shared_ptr/g libqpdf/*.cc patrepl s/make_pointer_holder/std::make_shared/g libqpdf/*.cc patrepl s/make_array_pointer_holder/QUtil::make_shared_array/g libqpdf/*.cc patrepl s,qpdf/std::shared_ptr,qpdf/PointerHolder, **/*.cc **/*.hh git restore include/qpdf/PointerHolder.hh cleanpatch ./format-code
2022-04-04Programmatically apply new formatting to codeJay Berkenbilt
Run this: for i in **/*.cc **/*.c **/*.h **/*.hh; do clang-format < $i >| $i.new && mv $i.new $i done
2022-02-08WHITESPACE ONLY -- expand tabs in source codeJay Berkenbilt
This comment expands all tabs using an 8-character tab-width. You should ignore this commit when using git blame or use git blame -w. In the early days, I used to use tabs where possible for indentation, since emacs did this automatically. In recent years, I have switched to only using spaces, which means qpdf source code has been a mixture of spaces and tabs. I have avoided cleaning this up because of not wanting gratuitous whitespaces change to cloud the output of git blame, but I changed my mind after discussing with users who view qpdf source code in editors/IDEs that have other tab widths by default and in light of the fact that I am planning to start applying automatic code formatting soon.
2022-02-07Update for clean compile with POINTERHOLDER_TRANSITION=2Jay Berkenbilt
2022-02-04Replace containers of PointerHolder with containers of std::shared_ptrJay Berkenbilt
None of these are in the public API.
2022-02-04PointerHolder: deprecate getPointer() and getRefcount()Jay Berkenbilt
Use get() and use_count() instead. Add #define NO_POINTERHOLDER_DEPRECATION to remove deprecation markers for these only. This commit also removes all deprecated PointerHolder API calls from qpdf's code except in PointerHolder's test suite, which must continue to test the deprecated APIs.
2022-01-27Remove some if statements and simplify some boolean expressionsm-holger
Use QPDFObjectHandle::isNameAndEquals, isDictionaryOfType and isStreamOfType.
2021-11-03Detect recoverable but invalid zlib data streams (fixes #562)Jay Berkenbilt
2021-02-14Add functional versions of QPDFObjectHandle::replaceStreamDataJay Berkenbilt
Also fix a bug in checking consistency of length for stream data providers. Length should not be checked or recorded if the provider says it failed to generate the data.
2021-01-17Add warn() to QPDF's public APIJay Berkenbilt
2020-12-28Add QPDFObjectHandle::setFilterOnWriteJay Berkenbilt
2020-12-28Implement user-provided stream filtersJay Berkenbilt
Refactor QPDF_Stream to use stream filter classes to handle supported stream filters as well.
2020-04-16Fix warnings reported by -Wshadow=local (fixes #431)Jay Berkenbilt
2020-04-09Bug fix: getStreamData should on unfilterable stream (fixes #425)Jay Berkenbilt
2020-04-06Allow propagation of errors and retry through StreamDataProviderJay Berkenbilt
StreamDataProvider::provideStreamData now has a rich enough API for it to effectively proxy to pipeStreamData.
2019-08-28Detect stream in object stream, fixing fuzz 16214Jay Berkenbilt
It's detected in QPDFWriter instead of at parse time because I can't figure out how to construct a test case in a reasonable time. This commit moves the fuzz file into the regular test suite for a QTC coverage case.
2019-06-21Fix sign and conversion warnings (major)Jay Berkenbilt
This makes all integer type conversions that have potential data loss explicit with calls that do range checks and raise an exception. After this commit, qpdf builds with no warnings when -Wsign-conversion -Wconversion is used with gcc or clang or when -W3 -Wd4800 is used with MSVC. This significantly reduces the likelihood of potential crashes from bogus integer values. There are some parts of the code that take int when they should take size_t or an offset. Such places would make qpdf not support files with more than 2^31 of something that usually wouldn't be so large. In the event that such a file shows up and is valid, at least qpdf would raise an error in the right spot so the issue could be legitimately addressed rather than failing in some weird way because of a silent overflow condition.
2019-06-21Change QPDFObjectHandle::pipeStreamData's encode_flags typeJay Berkenbilt
Change from unsigned long to int since we pass enumerated type values to this field.
2019-06-09Handle empty DecodeParams array for (fixes #331)Jay Berkenbilt
On read, ignore /DecodeParms when empty list; on write, delete it. Some files have been found that include an empty list for /DecodeParms, but this is not technically compliant with the spec, and the only sensible interpretation is to treat it as if there are no decode parameters.
2019-01-07Mostly don't require original QPDF for copyForeignObject (fixes #219)Jay Berkenbilt
The original QPDF is only required now when the source QPDFObjectHandle is a stream that gets its stream data from a QPDFObjectHandle::StreamDataProvider.
2018-12-22Add QPDFObjectHandle::getJSON()Jay Berkenbilt
2018-02-19More robust handling of type errorsJay Berkenbilt
Give objects descriptions and context so it is possible to issue warnings instead of fatal errors for attempts to access objects of the wrong type.
2018-02-19Simplify TokenFilter interfaceJay Berkenbilt
Expose Pl_QPDFTokenizer, and have it do more of the work of managing the token filter's pipeline.
2018-02-19Detect and report bad tokens in content normalizationJay Berkenbilt
2018-02-19Implement TokenFilter and refactor Pl_QPDFTokenizerJay Berkenbilt
Implement a TokenFilter class and refactor Pl_QPDFTokenizer to use a TokenFilter class called ContentNormalizer. Pl_QPDFTokenizer is now a general filter that passes data through a TokenFilter.
2018-01-14Support TIFF Predictor (fixes #171)Jay Berkenbilt
2018-01-14Use better error for getStreamData failureJay Berkenbilt
If the stream isn't filterable but we call getStreamData, throw a regular exception instead of a logic error so that normal error handling and reporting mechanisms will be used.
2017-12-25Correct errors in PNG filters and make use from libraryJay Berkenbilt
2017-09-12Improve message for stream decoding errorJay Berkenbilt
Tweak the message so that we inform the user that we are mitigating data loss.
2017-08-29Clean up circular references in QPDF_StreamJay Berkenbilt
2017-08-21Enable finer grained control of stream decodingJay Berkenbilt
This commit adds several API methods that enable control over which types of filters QPDF will attempt to decode. It also adds support for /RunLengthDecode and /DCTDecode filters for both encoding and decoding.
2017-07-28Add precheck streams capabilityJay Berkenbilt
When requested, QPDFWriter will do more aggress prechecking of streams to make sure it can actually succeed in decoding them before attempting to do so. This will allow preservation of raw data even when the raw data is corrupted relative to the specified filters.
2017-07-28Convert stream filtering errors to warningsJay Berkenbilt
2013-10-18Security: replace operator[] with atJay Berkenbilt
For std::string and std::vector, replace operator[] with at. This was done using an automated process. See README.hardening for details.
2013-07-08Ignore broken DecodeParms for stream with no filtersJay Berkenbilt
2013-03-04Remove all old-style casts from C++ codeJay Berkenbilt
2013-01-22Add getTypeCode() and getTypeName()Jay Berkenbilt
Add virtual methods to QPDFObject, wrappers to QPDFObjectHandle, and implementations to all the QPDF_Object types.
2012-12-31Support files with only attachments encryptedJay Berkenbilt
Test cases added in a future commit since they depend on /R=6 support.
2012-07-21Implement QPDFObjectHandle::parseJay Berkenbilt
Move object parsing code from QPDF to QPDFObjectHandle and parameterize the parts of it that are specific to a QPDF object. Provide a version that can't handle indirect objects and that can be called on an arbitrary string. A side effect of this change is that the offset used when reporting invalid stream length has changed, but since the new value seems like a better value than the old one, the test suite has been updated rather than making the code backward compatible. This only effects the offset reported for invalid streams that lack /Length or have an invalid /Length key. Updated some test code and exmaples to use QPDFObjectHandle::parse. Supporting changes include adding a BufferInputSource constructor that takes a string.
2012-07-07Don't require stream data provider to know length in advanceJay Berkenbilt
Breaking API change: length parameter has disappeared from the StreamDataProvider version of QPDFObjectHandle::replaceStreamData since it is no longer necessary to compute it in advance. This breaking change is justified by the fact that removing the length parameter provides the caller an opportunity to simplify the calling code.
2012-06-22Use qpdf_offset_t in place of off_t in public APIs.Jay Berkenbilt
off_t is used internally only when needed to talk to standard libraries. This requires that the "long long" type be supported by the compiler.
2012-06-20ABI change: fix use of off_t, size_t, and integer typesJay Berkenbilt
Significantly improve the code's use of off_t for file offsets, size_t for memory sizes, and integer types in cases where there has to be compatibility with external interfaces. Rework sections of the code that would have prevented qpdf from working on files larger than 2 (or maybe 4) GB in size.
2010-09-24update code to new PointerHolder, and reintroduce change that was ↵Jay Berkenbilt
accidentally backed out git-svn-id: svn+q:///qpdf/trunk@1031 71b93d88-0707-0410-a8cf-f5a4172ac649
2010-09-05handle stream filter abbreviations from table H.1Jay Berkenbilt
git-svn-id: svn+q:///qpdf/trunk@1025 71b93d88-0707-0410-a8cf-f5a4172ac649
2010-08-10getRawStreamData()Jay Berkenbilt
git-svn-id: svn+q:///qpdf/trunk@1010 71b93d88-0707-0410-a8cf-f5a4172ac649
2010-08-05newStreamJay Berkenbilt
git-svn-id: svn+q:///qpdf/trunk@991 71b93d88-0707-0410-a8cf-f5a4172ac649
2010-08-05add pipeline-based stream data replacement functionJay Berkenbilt
git-svn-id: svn+q:///qpdf/trunk@990 71b93d88-0707-0410-a8cf-f5a4172ac649
2010-08-03remove stream_data_handler; it wouldn't work as designed. replacement data ↵Jay Berkenbilt
implemented but not tested git-svn-id: svn+q:///qpdf/trunk@988 71b93d88-0707-0410-a8cf-f5a4172ac649
2010-08-03ready to implement replacement stream dataJay Berkenbilt
git-svn-id: svn+q:///qpdf/trunk@987 71b93d88-0707-0410-a8cf-f5a4172ac649
2009-10-20categorize all error messages and include object information if availableJay Berkenbilt
git-svn-id: svn+q:///qpdf/trunk@829 71b93d88-0707-0410-a8cf-f5a4172ac649