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246 Commits

Author SHA1 Message Date
Jay Berkenbilt b4bdc42b4f New exception class QPDFSystemError (fixes #221) 2018-08-13 20:01:51 -04:00
Jay Berkenbilt 3873f5fd9b Protect headers with compliant identifiers (fixes #233) 2018-08-12 14:10:32 -04:00
Jay Berkenbilt 4a4736c695 Fix EOL handling inside strings (fixes #226) 
CR, CRLF, and LF are all supposed to be treated as LF; only one EOL is
to be ignored after backslash.
 2018-08-05 20:48:35 -04:00
Jay Berkenbilt 651b51f056 Add QPDF_DLL to public destructors (fixes #220) 
A few public destructors were missing QPDF_DLL, which could cause some
Windows applications to fail to link.
 2018-08-04 20:08:06 -04:00
Jay Berkenbilt 4f4c627b77 ClosedFileInputSource: add method to keep file open 
During periods of intensive operation on a specific file, this method
can reduce the overhead of repeated open/close operations.
 2018-08-04 19:52:46 -04:00
Jay Berkenbilt 5db39a681a Windows fixes 2018-06-22 17:01:18 -04:00
Jay Berkenbilt d34ab8a936 spell check 2018-06-22 16:14:54 -04:00
Jay Berkenbilt a433ed24f9 Add progress reporting for QPDFWriter (fixes #200) 2018-06-22 16:14:54 -04:00
Jay Berkenbilt 2a82f6e1e0 Add method to get count of objects in QPDF 2018-06-22 15:53:40 -04:00
Jay Berkenbilt 4ccc8b1a44 Add ClosedFileInputSource 
ClosedFileInputSource is an input source that keeps the file closed
when not reading it.
 2018-06-22 12:52:45 -04:00
Jay Berkenbilt 6c89d4b35b When splitting files, remove unreferenced objects (fixes #203) 2018-06-21 21:03:30 -04:00
Jay Berkenbilt ddd78c1b7f Fix QPDFObjectHandle::shallowCopy 
It's not really a shallow copy. It just doesn't cross indirect object
boundaries. The old implementation had a bug that would cause multiple
shallow copies of the same object to share memory, which was not the
intention.
 2018-06-21 20:34:45 -04:00
Jay Berkenbilt 397b097c46 Allow setting a form field's value 2018-06-21 15:57:13 -04:00
Jay Berkenbilt 952a665a4e Better support for creating Unicode strings 2018-06-21 15:57:13 -04:00
Jay Berkenbilt e44c395c51 QUtil::toUTF16 2018-06-21 15:57:13 -04:00
Jay Berkenbilt 0b05111db8 Implement helper class for interactive forms 2018-06-21 15:57:13 -04:00
Jay Berkenbilt 2e7ee23bf6 Add QPDFPageDocumentHelper and QPDFPageObjectHelper 
This is the beginning of higher-level API support using helper
classes. The goal is to be able to add more helpers without continuing
to pollute QPDF's and QPDFObjectHandle's public interfaces.
 2018-06-21 15:57:13 -04:00
Jay Berkenbilt 4cded10821 Add QPDFObjectHandle::Rectangle type 
Provide a convenient way of accessing rectangles.
 2018-06-21 15:57:13 -04:00
Jay Berkenbilt e4e2e26d99 Properly handle pages with no contents (fixes #194) 
Remove calls to assertPageObject(). All cases in the library that
called assertPageObject() work fine if you don't call
assertPageObject() because nothing assumes anything that was being
checked by that call. Removing the calls enables more files to be
successfully processed.
 2018-03-06 11:34:07 -05:00
Jay Berkenbilt 4bb3046f0b Properly handle strings with PDF Doc Encoding (fixes #179) 
The QPDF_String::getUTF8Val() method was not treating strings that
weren't explicitly Unicode as PDF Doc Encoded. This only affects
characters in the range 0x80 through 0xa0.
 2018-02-18 21:06:27 -05:00
Jay Berkenbilt 2780a1871d Add C API for checking PDF files 2018-02-18 21:06:27 -05:00
Jay Berkenbilt d0e99f195a More robust handling of type errors 
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.
 2018-02-18 21:06:27 -05:00
Jay Berkenbilt 21b7481b0e Push members of QPDFObjectHandle into a Members object 
As in other cases, this is to enable adding new member variables in
the future without breaking ABI compatibility.
 2018-02-18 21:06:27 -05:00
Jay Berkenbilt e410b0fe0d Simplify TokenFilter interface 
Expose Pl_QPDFTokenizer, and have it do more of the work of managing
the token filter's pipeline.
 2018-02-18 21:05:47 -05:00
Jay Berkenbilt 1fdd86a049 Move Pl_QPDFTokenizer to public interface 2018-02-18 21:05:47 -05:00
Jay Berkenbilt 5708b5d0aa Add additional interface for filtering page contents 2018-02-18 21:05:47 -05:00
Jay Berkenbilt 9910104442 Implement TokenFilter and refactor Pl_QPDFTokenizer 
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.
 2018-02-18 21:05:46 -05:00
Jay Berkenbilt b8723e97f4 Add coalesce contents capability 2018-02-18 21:05:46 -05:00
Jay Berkenbilt fcd611b61e Refactor parseContentStream 2018-02-18 21:05:46 -05:00
Jay Berkenbilt 05ff619b09 Remove redundant method 
Remove a redundant method that was equal to another one with
additional arguments. This breaks binary compatibility, but there are
other ABI breaking changes in the upcoming release, so now is the time
to do it.
 2018-02-18 21:05:46 -05:00
Jay Berkenbilt fefe25030e Inline image token type 2018-02-18 21:05:46 -05:00
Jay Berkenbilt 2699ecf13e Push QPDFTokenizer members into a nested structure 
This is for protection against future ABI breaking changes.
 2018-02-18 21:05:46 -05:00
Jay Berkenbilt d97474868d Lexer enhancements: EOF, comment, space 
Significant enhancements to the lexer to improve EOF handling and to
support comments and spaces as tokens. Various other minor issues were
fixed as well.
 2018-02-18 20:18:40 -05:00
Jay Berkenbilt ebd5ed63de Add option to save pass 1 of lineariziation 
This is useful only for debugging the linearization code.
 2018-02-18 20:18:40 -05:00
Jay Berkenbilt e3167c1a60 Fix linearization for files with nonstandard ID length 2018-02-04 18:16:23 -05:00
Jay Berkenbilt aa2cfad61a Clarify some comments 2018-01-28 18:29:47 -05:00
Jay Berkenbilt 569d74d36b Allow raw encryption key to be specified 
Add options to enable the raw encryption key to be directly shown or
specified. Thanks to Didier Stevens <didier.stevens@gmail.com> for the
idea and contribution of one implementation of this idea.
 2018-01-14 10:21:05 -05:00
Jay Berkenbilt 3e306ae64c Add QUtil::hex_decode 2018-01-14 09:04:13 -05:00
Jay Berkenbilt 68572df2bf Update copyright to 2018 2018-01-13 20:25:58 -05:00
Jay Berkenbilt 07c8bb2843 Additionally license under Apache License version 2.0 
The Apache License version 2.0 is now the primary license for qpdf.
However, users may, at their option, continue to use Artistic version
2.0.
 2017-09-14 12:59:25 -04:00
Jay Berkenbilt d31a7b76e7 Improve message for stream decoding error 
Tweak the message so that we inform the user that we are mitigating
data loss.
 2017-09-12 16:03:48 -04:00
Jay Berkenbilt eaacf94005 Update C API with new QPDFWriter methods 2017-09-12 14:30:39 -04:00
Jay Berkenbilt 6d46346eb9 Detect integer overflow/underflow 2017-08-29 12:28:32 -04:00
Jay Berkenbilt e999bbae43 Fix memory leak with bad jpeg data 2017-08-28 22:16:45 -04:00
Jay Berkenbilt c6872d2c70 Clean up circular references in QPDF_Stream 2017-08-28 22:16:31 -04:00
Jay Berkenbilt 728dc9e6d8 Fix error caught by clang 2017-08-26 21:51:17 -04:00
Jay Berkenbilt ad527a64f9 Parse iteratively to avoid stack overflow (fixes #146) 2017-08-25 21:56:45 -04:00
Jay Berkenbilt e452d9dca6 Spell check 2017-08-22 14:22:20 -04:00
Jay Berkenbilt fabff0f3ec Limit token length during xref recovery 
While scanning the file looking for objects, limit the length of
tokens we allow. This prevents us from getting caught up in reading a
file character by character while digging through large streams.
 2017-08-22 14:13:10 -04:00
Jay Berkenbilt ce435222b2 Push QPDFWriter member variables into a nested class 2017-08-21 22:04:07 -04:00