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Always prefer abbreviated keys, over full ones, when doing any dictionary lookups (issue 14256)
Note that issue 14256 was specifically about *inline* images, please refer to: - https://www.adobe.com/content/dam/acom/en/devnet/pdf/pdfs/PDF32000_2008.pdf#G7.1852045 - https://www.pdfa.org/safedocs-unearths-pdf-inline-image-issue/ - https://pdf-issues.pdfa.org/32000-2-2020/clause08.html#H8.9.7 However, during review of the initial PR in https://github.com/mozilla/pdf.js/pull/14257#issuecomment-964469710, it was suggested that we instead do this *unconditionally for all* dictionary lookups. In addition to re-ordering the existing call-sites in the `src/core`-code, and adding non-PRODUCTION/TESTING asserts to catch future errors, for consistency a number of existing `if`/`switch`-blocks were re-factored to also check the abbreviated keys first.
This commit is contained in:
Jonas Jenwald
parent
4ee906adf4
commit
ea1c348c67
12 changed files with 730 additions and 104 deletions
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|
||||
ff00ffff00ff0000ff0000ffff000000
|
||||
ff0000ff0000ffffff000000ffffff00
|
||||
ffff00ffff000000ffffff00ffff00ff
|
||||
ff000000ff0000ffffff00ffff00ffff
|
||||
00ff0000ff0000ffff00ffff000000ff
|
||||
ffff00ffff000000ff0000ffffff0000
|
||||
00ff0000ffffff00ffff000000ffffff
|
||||
00ffff000000ffffff00ffff00ff0000
|
||||
ff0000ffff00ffff000000ffffff00ff
|
||||
ff000000ffffff000000ffffff000000
|
||||
ffffff000000ffffff00ffff00ffff00
|
||||
ffff00ffff00ffff00ff0000ff0000ff
|
||||
ff00ffff000000ffffff00ffff000000
|
||||
ffffff000000ffffff000000ffffff00
|
||||
0000ffffff00ffff000000ff0000ffff
|
||||
ff00ffff00ff0000ff0000ffff00ffff
|
||||
000000ffffff00ffff000000ffffff00
|
||||
ffff00ffff000000ffffff00ffff0000
|
||||
00ffffff00ffff000000ffffff00ffff
|
||||
00ff0000ff0000ffff000000ff0000ff
|
||||
0000ffffff000000ffffff00ffff00ff
|
||||
ff000000ffffff00ffff00ffff000000
|
||||
ff0000ff0000ffffff00ffff00ff0000
|
||||
ff0000ffff00ffff00ffff00ffff00ff
|
||||
ff00ffff00ffff00ffff00ffff00ffff
|
||||
00ffff00ffff00ffff00ffff00ffff00
|
||||
ffff00ffff00ffff00ff0000ff0000ff
|
||||
0000ff0000ff0000ff0000ff0000ff00
|
||||
00ff0000ff0000ff0000ff0000ff0000
|
||||
ff0000ff0000ff0000ff0000ff0000ff
|
||||
0000ff0000ff0000 >
|
||||
EI
|
||||
Q
|
||||
|
||||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||||
% #8: CORRECT abbreviated key names, INCORRECT full keys
|
||||
% for DecodeParams. If appearance is different to the other
|
||||
% images then the PDF parser is incorrect!
|
||||
q
|
||||
BT
|
||||
0 0 0 rg % Black text
|
||||
/F1 8 Tf
|
||||
10 0 0 10 675 220 Tm
|
||||
(8) Tj
|
||||
ET
|
||||
Q
|
||||
q
|
||||
0 1 0 rg % Green fill
|
||||
640 100 200 100 re f % Paint green rectangle below image
|
||||
200 0 0 100 640 100 cm
|
||||
BI
|
||||
/W 20
|
||||
/H 10
|
||||
/BPC 8
|
||||
/CS /RGB
|
||||
/F [ /AHx /Fl ]
|
||||
/DP [ null << /Predictor 15 /Colors 3 /BitsPerComponent 8 /Columns 20 >> ] %% THIS IS REQUIRED TO VIEW IMAGE CORRECTLY
|
||||
/DecodeParms [ null null ]
|
||||
/Length 197
|
||||
ID
|
||||
28919d90510e80200c435be2fdaf5c3f
|
||||
a6653297280b2165e175050afb7500c0
|
||||
9e01312e41c50a3d2f3c753e02372cd1
|
||||
bb998594283137c76ba2b894bdac2d5a
|
||||
b8ab25790be7094e9b9b13ae8fac5ef5
|
||||
c3c2f05776a3e8677da81323233119>
|
||||
EI
|
||||
|
||||
endstream
|
||||
endobj
|
||||
|
||||
6 0 obj
|
||||
<< /Type /Font
|
||||
/Subtype /Type1
|
||||
/BaseFont /Helvetica
|
||||
>>
|
||||
endobj
|
||||
|
||||
7 0 obj
|
||||
<< /CreationDate (D:20210529)
|
||||
/Producer (Manual)
|
||||
/Creator (Peter Wyatt for SafeDocs)
|
||||
/Author (Peter Wyatt)
|
||||
/Subject (Inline Image Test for abbreviated and full key names)
|
||||
/Title (Inline Image Test for abbreviated and full key names)
|
||||
/Keywords (image, inline, abbreviation, ambiguous)
|
||||
>>
|
||||
endobj
|
||||
|
||||
xref
|
||||
0 8
|
||||
0000000000 65536 f
|
||||
0000000048 00000 n
|
||||
0000000137 00000 n
|
||||
0000000194 00000 n
|
||||
0000000267 00000 n
|
||||
0000000791 00000 n
|
||||
0000014420 00000 n
|
||||
0000014509 00000 n
|
||||
trailer
|
||||
<< /Size 8
|
||||
/Root 1 0 R
|
||||
/Info 7 0 R
|
||||
>>
|
||||
startxref
|
||||
14872
|
||||
%%EOF
|
||||
|
|
@ -85,6 +85,12 @@
|
|||
"lastPage": 2,
|
||||
"type": "eq"
|
||||
},
|
||||
{ "id": "issue14256",
|
||||
"file": "pdfs/issue14256.pdf",
|
||||
"md5": "15938b7562146dbea7ed8aa15b172fe6",
|
||||
"rounds": 1,
|
||||
"type": "eq"
|
||||
},
|
||||
{ "id": "issue11549",
|
||||
"file": "pdfs/issue11549_reduced.pdf",
|
||||
"md5": "a1ea636f413e02e10dbdf379ab4a99ae",
|
||||
|
|
|
|||
|
|
@ -87,7 +87,7 @@ describe("primitives", function () {
|
|||
const checkInvalidKeyValues = function (dict) {
|
||||
expect(dict.get()).toBeUndefined();
|
||||
expect(dict.get("Prev")).toBeUndefined();
|
||||
expect(dict.get("Decode", "D")).toBeUndefined();
|
||||
expect(dict.get("D", "Decode")).toBeUndefined();
|
||||
expect(dict.get("FontFile", "FontFile2", "FontFile3")).toBeUndefined();
|
||||
};
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue