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Commit Graph

3690 Commits

Author SHA1 Message Date
m-holger
db06e075ea Move xref table initialisation from QPDF::parse to QPDF::Xref_table 2024-09-18 10:25:37 +01:00
m-holger
a4db9b3149 Move QPDF::read_xref to QPDF::Xref_table 2024-09-18 10:25:37 +01:00
m-holger
f30a5eb05a Move QPDF::read_xrefStream to QPDF::Xref_table 2024-09-18 10:25:37 +01:00
m-holger
253d3aee8f Move QPDF::read_xrefEntry to QPDF::Xref_table 2024-09-18 10:25:37 +01:00
m-holger
3fbff84594 Move QPDF::reconstruct_xref to QPDF::Xref_table
Also, when recovering trailer from xref streams, pick the last valid
trailer encountered rather than the first.
2024-09-18 10:25:37 +01:00
m-holger
1e072e223a Move QPDF::insertXrefEntry etc to QPDF::Xref_table 2024-09-18 10:25:37 +01:00
m-holger
0ac37bc956 Add new class QPDF::Xref_table 2024-09-18 10:25:37 +01:00
m-holger
f8e6274a2e Move QPDF inner class definitions to new QPDF_private.hh 2024-09-18 10:25:37 +01:00
m-holger
d42fda60d5 Amend "recover file with xref stream" test
Change first xref stream dictionary to point to an invalid root in order
to detect failure to recover the last valid trailer.
2024-09-18 10:25:37 +01:00
m-holger
8f54319f7a
Merge pull request #1179 from m-holger/null
In FUTURE, treat uninitialized object handles as null
2024-09-18 10:22:04 +01:00
m-holger
4b245364ca
Merge pull request #1285 from m-holger/fuzz
Adjust fuzzer Pl_Flate memory limits
2024-09-18 00:56:25 +01:00
m-holger
68c2489b80 For qpdf fuzzers adjust the memory limit for Flate filtered streams 2024-09-18 00:13:24 +01:00
m-holger
dcf111a9bc Apply fuzzer Pl_Flate memory limit only when inflating
Fixes fuzz issue 71689.
2024-09-18 00:12:44 +01:00
m-holger
266d479735 Refactor QPDF_Array::at
Change the return type to a std::pair<bool, QPDFObjectHandle> in order to
allow a default constructed object handle (which is currently returned to
indicate failure) to become a valid object.
2024-09-17 09:59:00 +01:00
m-holger
0afaaea22a Deprecate QPDFObjectHandle::isInitialized and remove from library 2024-09-17 09:59:00 +01:00
m-holger
5a33c75b98 Add QPDFObjectHandle::operator bool 2024-09-17 09:59:00 +01:00
m-holger
bcf56e5333
Merge pull request #1269 from m-holger/hybrid
Fix handling of hybrid reference files in QPDF::read_xrefTable
2024-09-17 09:50:59 +01:00
m-holger
61f7d97b20
Merge pull request #1283 from m-holger/fuzz
Fix #1242
2024-09-17 00:19:52 +01:00
m-holger
54ac92eb1d
Merge pull request #1271 from m-holger/rsl
Fix QPDF::recoverStreamLength
2024-09-16 20:38:14 +01:00
m-holger
75091093fe
Merge pull request #1280 from m-holger/streams
Tidy QPDF_Stream
2024-09-16 19:52:24 +01:00
m-holger
ddfa3a24f0
Merge pull request #1281 from m-holger/input
Replace some std::shared_ptr parameters with reference parameters
2024-09-16 17:59:53 +01:00
m-holger
9ba6e070a1 Fix #1242
Ensure QPDF m->all_pages and invalid_page_found are reset if
getAllPagesInternal throws an exception.

Fixes fuzz case 71624.
2024-09-16 16:04:43 +01:00
m-holger
a238985087
Merge pull request #1277 from m-holger/objtable
Refactor ObjTable
2024-09-06 00:39:59 +01:00
m-holger
5d25aac6c7 In QPDFParser constructor change input parameter to InputSource& 2024-09-05 15:30:32 +01:00
m-holger
258343fcc9 In QPDF::readToken change input parameter to InputSource& 2024-09-05 15:23:28 +01:00
m-holger
20edfb3f91 In QPDF::damagedPDF change input parameter to InputSource& 2024-09-05 15:13:30 +01:00
m-holger
83e0f8da88 Tidy QPDF_Stream
1. Make class final
2. Pass og parameter by value
3. Properly initialize qpdf and og

Also, tweak QPDF::replaceObject to allow stream replacement without
violating the requirement that streams must always be indirect objects.

Also, remove QPDF::reserveStream as it does not do what the name implies
and having this as a separate methods does not aid code readability.
2024-09-04 16:00:57 +01:00
m-holger
7f3b05ddb4
Merge pull request #1279 from m-holger/fuzz
Split qpdf_fuzzer into six separate fuzzers
2024-09-03 23:58:33 +01:00
m-holger
d8d73679e7 Split qpdf_fuzzer into six separate fuzzers 2024-09-03 14:21:06 +01:00
m-holger
7777ea84e7 Add new method ObjTable::emplace_back 2024-08-31 21:03:37 +01:00
m-holger
4badc78aea Remove methods ObjTable::initialize 2024-08-31 15:01:45 +01:00
m-holger
0d08f65cb8 Add new method ObjTable::resize 2024-08-31 14:20:16 +01:00
m-holger
68ac2179bd In ObjTable change maximum allowable object id to std::vector<T>::max_size()
Given that the PDF spec requires the xref table to contain entries for all
object ids <= the maximum id present in a PDF document, max_size is a
qpdf implementation limitation for legitimate object ids.
2024-08-31 12:55:53 +01:00
m-holger
c1377176f8
Merge pull request #1276 from m-holger/obj
Refactor QPDFObjectHandle::getTypeName
2024-08-28 22:02:07 +01:00
m-holger
64f9b7b242 Refactor QPDFObjectHandle::getTypeName 2024-08-27 10:39:33 +01:00
m-holger
0a6ab1060f
Merge pull request #1275 from m-holger/fuzz
In qpdf_fuzzer and dct_fuzzer add a scan limit for Pl_DCT
2024-08-26 00:39:33 +01:00
m-holger
8ed10d71ea In qpdf_fuzzer and dct_fuzzer add a scan limit for Pl_DCT 2024-08-25 17:03:26 +01:00
m-holger
8cb9bce780 Add new commands --remove-metadata and --remove-info 2024-08-25 13:10:11 +01:00
m-holger
fbba156ca2
Merge pull request #1273 from m-holger/fuzz
In QPDF::readObjectAtOffset fail early on 'expect n n obj'
2024-08-24 00:01:24 +01:00
m-holger
ef49291682 In QPDF::readObjectAtOffset fail early on 'expect n n obj' 2024-08-23 14:09:20 +01:00
m-holger
0b3debaf86
Merge pull request #1253 from m-holger/pl_t
Refactor Pl_QPDFTokenizer
2024-08-21 18:29:55 +01:00
m-holger
c02cb9a720 Fix QPDF::recoverStreamLength
Ensure the the recovered stream end is not part of a different object.

Test file is bad24.pdf with stream 4 'endstream' corrupted.
2024-08-20 15:14:01 +01:00
m-holger
42cd7a98ad In QPDF::recoverStreamLength mark unreachable code 2024-08-20 12:52:33 +01:00
m-holger
f2228b1f88 Fix handling of hybrid reference files in QPDF::read_xrefTable
QPDF::read_xrefTable ignores type 0 entries for objects in a section if an
associates XRefStm has an entry for the same object.

The spec states:

When the conforming reader searches for an object, if an entry is not
found in any given standard cross-reference section, the search shall
proceed to a cross-reference stream specified by the XRefStm entry
before looking in the previous cross-reference section,

If a deleted entry is found in a section, the XRefStm is not searched
according to the standard.
2024-08-16 15:58:55 +01:00
m-holger
dc1ae8457d
Merge pull request #1268 from m-holger/hc
Fix test_driver comment
2024-08-15 19:01:38 +01:00
m-holger
6b7a05a379 Fix test_driver comment 2024-08-15 18:59:55 +01:00
m-holger
ac42965052
Merge pull request #1265 from m-holger/fuzz
If Pl_Flate memory limit is exceeded do not attempt 'finish' processing
2024-08-10 00:11:33 +01:00
m-holger
0eb29c7357 If Pl_Flate memory limit is exceeded do not attempt 'finish' processing 2024-08-09 11:08:30 +01:00
m-holger
0e9b9dab33
Merge pull request #1263 from m-holger/fuzz
Guard against 0 byte writes in Pl_Buffer and Pl_String
2024-08-08 01:09:15 +01:00
m-holger
0663f1f8db Guard against 0 byte writes in Pl_Buffer and Pl_String 2024-08-07 16:19:16 +01:00