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50 Commits

Author SHA1 Message Date
Jay Berkenbilt
c729e07d55 Avoid resolving arguments to R 
When checking two objects preceding R while parsing, ensure that the
objects are direct. This avoids stuff like 1 0 obj containing 1 0 R 0 R
from causing an infinite loop in object resolution.
 2015-02-21 17:51:08 -05:00
Jay Berkenbilt
caab1b0e16 Handle pages with no /Contents from getPageContents() 
The spec allows /Contents to be omitted for pages that are blank, but
QPDFObjectHandle::getPageContents() was throwing an exception in this
case.
 2014-11-14 13:43:34 -05:00
Jay Berkenbilt
ac9c1f0d56 Security: replace operator[] with at 
For std::string and std::vector, replace operator[] with at.  This was
done using an automated process.  See README.hardening for details.
 2013-10-18 10:45:14 -04:00
Jay Berkenbilt
212812d837 Fix errors reported by Coverity 
Thanks to Jiri Popelka from Red Hat for sending the output of a
Coverity run over qpdf.
 2013-07-07 15:36:51 -04:00
Jay Berkenbilt
5039da0b91 Add QPDFObjectHandle::getObjGen() 
This is safer than getObjectID() and getGeneration() for many uses.
 2013-06-14 14:58:09 -04:00
Jay Berkenbilt
2d02b3cc3d Add explicit int to double cast 2013-04-04 14:13:31 -04:00
Jay Berkenbilt
29f5830325 Fix getTypeCode and getTypeName work for indirect objects 
Remove const qualifier from getTypeCode and get getTypeName methods of
QPDFObjectHandle, make them work properly for indirect objects, and
exercise them much better in the test suite.
 2013-03-05 13:35:46 -05:00
Jay Berkenbilt
119f2a4b68 Add method to terminate content stream parsing 2013-03-05 13:35:46 -05:00
Jay Berkenbilt
30027481f7 Remove all old-style casts from C++ code 2013-03-04 16:45:16 -05:00
Jay Berkenbilt
a5d8783f67 Improve qpdf --check 
Fix exit status for case of errors without warnings, continue after
errors when possible, add test case for parsing a file with content
stream errors on some but not all pages.
 2013-01-25 11:08:50 -05:00
Jay Berkenbilt
bfda717749 Cosmetic changes to be closer to Adobe terminology 
Change object type Keyword to Operator, and place the order of the
object types in object_type_e in the same order as they are mentioned
in the PDF specification.

Note that this change only breaks backward compatibility with code
that has not yet been released.
 2013-01-23 09:38:05 -05:00
Jay Berkenbilt
913eb5ac35 Add getTypeCode() and getTypeName() 
Add virtual methods to QPDFObject, wrappers to QPDFObjectHandle, and
implementations to all the QPDF_Object types.
 2013-01-22 10:01:45 -05:00
Jay Berkenbilt
f81152311e Add QPDFObjectHandle::parseContentStream method 
This method allows parsing of the PDF objects in a content stream or
array of content streams.
 2013-01-20 15:35:39 -05:00
Jay Berkenbilt
1d88955fa6 Added new QPDFObjectHandle types Keyword and InlineImage 
These object types are to facilitate content stream parsing.
 2013-01-20 15:35:39 -05:00
Tobias Hoffmann
9c00874e77 added QPDFObjectHandle::replaceStreamData(std::string data). 2012-07-25 03:02:46 +02:00
Jay Berkenbilt
6bbea4baa0 Implement QPDFObjectHandle::parse 
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.
 2012-07-21 09:06:10 -04:00
Jay Berkenbilt
b501251291 qpdf: push inherited attributes to page when showing images 
from qpdf command-line tool
 2012-07-15 16:22:28 -04:00
Jay Berkenbilt
e7b8f297ba Support copying objects from another QPDF object 
This includes QPDF::copyForeignObject and supporting foreign objects
as arguments to addPage*.
 2012-07-11 15:54:33 -04:00
Jay Berkenbilt
8a217eb3a2 Add concept of reserved objects 
QPDFObjectHandle::{new,is,assert}Reserved, QPDF::replaceReserved
provide a mechanism to add objects to a PDF file when there are
circular references.  This is a prerequisite to copying objects from
one PDF to another.
 2012-07-10 23:34:32 -04:00
Tobias Hoffmann
8720446b23 Added assertNumber and assertScalar to QPDFObjectHandle 2012-07-07 18:55:08 -04:00
Tobias Hoffmann
a8266ccb0e Added public assert{Type} methods to QPDFObjectHandle 2012-07-07 18:53:38 -04:00
Jay Berkenbilt
e2dedde4bd Don't require stream data provider to know length in advance 
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.
 2012-07-07 17:33:45 -04:00
Jay Berkenbilt
5f59c32f87 Add a few minor enhancements to recent work 
Test coverage case for new newStream method
Expose decimal_places argument for double-based newReal

All enhancements suggested by Tobias.
 2012-06-27 10:43:27 -04:00
Tobias Hoffmann
43c404b45a Add QPDFObjectHandle::newStream(QPDF *, std::string const&) 
This makes the code simpler than having to create a buffer of a fixed
size and copy the string to it.
 2012-06-27 10:19:57 -04:00
Tobias Hoffmann
75054c0b94 Add QPDFObjectHandle::newReal(double) 2012-06-27 10:19:01 -04:00
Jay Berkenbilt
781c313058 Change QPDF_Integer from int to long long 
This makes it possible to store offsets that are larger than 2 GB in
the trailer dictionary.
 2012-06-24 15:20:01 -04:00
Jay Berkenbilt
6c0af0844c Switch some code to use empty newArray/newDictionary 2012-06-22 10:09:42 -04:00
Jay Berkenbilt
b6bdc0f595 Add factory methods for creating empty arrays and dictionaries. 
Also updated pdf_from_scratch test driver to use the new factories,
and made some cosmetic improvements and documentation updates for the
emptyPDF() method.
 2012-06-22 09:46:33 -04:00
Jay Berkenbilt
81e8752362 Use qpdf_offset_t in place of off_t in public APIs. 
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.
 2012-06-21 21:23:24 -04:00
Jay Berkenbilt
d1ebe30ff6 Add QPDFObjectHandle::shallowCopy() 2012-06-21 16:15:09 -04:00
Tobias Hoffmann
db7474e0fa Added additional array mutators 
Added methods to append to arrays, insert items into arrays, and
replace array contents with a vector of items.
 2012-06-20 15:29:44 -04:00
Jay Berkenbilt
5d4cad9c02 ABI change: fix use of off_t, size_t, and integer types 
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.
 2012-06-20 15:20:26 -04:00
Jay Berkenbilt
655c55f848 implement methods to get dictionary and array contents as map and vector 2011-08-10 13:33:58 -04:00
Jay Berkenbilt
a7e269537d update code to new PointerHolder, and reintroduce change that was accidentally backed out 
git-svn-id: svn+q:///qpdf/trunk@1031 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-09-24 20:45:18 +00:00
Jay Berkenbilt
bd7261da9b getRawStreamData() 
git-svn-id: svn+q:///qpdf/trunk@1010 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-08-09 23:33:40 +00:00
Jay Berkenbilt
2dbc1006fb addPageContents 
git-svn-id: svn+q:///qpdf/trunk@995 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-08-05 21:06:49 +00:00
Jay Berkenbilt
6f2bd7eb3a newStream 
git-svn-id: svn+q:///qpdf/trunk@991 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-08-05 20:20:52 +00:00
Jay Berkenbilt
11df7809af add pipeline-based stream data replacement function 
git-svn-id: svn+q:///qpdf/trunk@990 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-08-05 19:04:22 +00:00
Jay Berkenbilt
998a6cbee9 remove stream_data_handler; it wouldn't work as designed. replacement data implemented but not tested 
git-svn-id: svn+q:///qpdf/trunk@988 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-08-02 22:40:52 +00:00
Jay Berkenbilt
9a06fc541c ready to implement replacement stream data 
git-svn-id: svn+q:///qpdf/trunk@987 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-08-02 22:17:01 +00:00
Jay Berkenbilt
6755a86734 comment on memory leak fix 
git-svn-id: svn+q:///qpdf/trunk@979 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-06-06 18:03:21 +00:00
Jay Berkenbilt
9496b2cb20 fix memory leak 
git-svn-id: svn+q:///qpdf/trunk@976 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-06-06 13:32:08 +00:00
Jay Berkenbilt
aa093bfabd Use a pointer holder in one place where we were previously just using 
a pointer.


git-svn-id: svn+q:///qpdf/trunk@968 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-05-31 17:04:55 +00:00
Jay Berkenbilt
734ac1e1d2 deal with stream-specific crypt filters 
git-svn-id: svn+q:///qpdf/trunk@827 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-10-19 01:58:31 +00:00
Jay Berkenbilt
44cbd3d4b4 do DLL_EXPORT only in header files and only at the class or top-level function level 
git-svn-id: svn+q:///qpdf/trunk@796 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-10-12 01:15:55 +00:00
Jay Berkenbilt
f3d7c26de1 removed qexc; non-compatible ABI change 
git-svn-id: svn+q:///qpdf/trunk@709 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-09-26 18:36:04 +00:00
Jay Berkenbilt
1e74c03acd stick DLL_EXPORT in front of every public method of every public class 
git-svn-id: svn+q:///qpdf/trunk@688 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-08-06 19:00:25 +00:00
Jay Berkenbilt
91cb7c0a58 fix many typos in comments and strings 
git-svn-id: svn+q:///qpdf/trunk@651 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-02-21 02:54:31 +00:00
Jay Berkenbilt
76bf91765e missing header files for gcc 4.3 
git-svn-id: svn+q:///qpdf/trunk@607 71b93d88-0707-0410-a8cf-f5a4172ac649
 2008-05-04 16:02:53 +00:00
Jay Berkenbilt
9a0b88bf77 update release date to actual date 
git-svn-id: svn+q:///qpdf/trunk@599 71b93d88-0707-0410-a8cf-f5a4172ac649
 2008-04-29 12:55:25 +00:00