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fix bug where the end of data bytes were missing from an ascii 85 stream

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This commit is contained in:
Eliot Jones
2017-12-25 22:19:02 +00:00
parent a3010e20ef
commit 8d3c65b6cd
2 changed files with 46 additions and 19 deletions
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58
src/UglyToad.Pdf.Tests/Filters/Ascii85FilterTests.cs
View File

@@ -29,24 +29,7 @@ O<DJ+*.@<*K0@<6L(Df-\0Ec5e;DffZ(EZee.Bl.9pF""AGXBPCsi + DGm >@3BB / F * &OCAfu2
text);
}
[Fact]
public void DecodesEncodedPdfContent()
{
const string input =
@"0d&.mDdmGg4?O`>9P&*SFD)dS2E2gC4pl@QEb/Zr$8N_r$:7]!01IZ=0eskNAdU47<+?7h+B3Ol2_m!C+?)#1+B1
`9>:<KhASu!rA7]9oF*)G6@;U'.@ps6t@V$[&ART*lARTXoCj@HP2DlU*/0HBI+B1r?0H_r%1a#ac$<nof.3LB""+=MAS+D58'ATD3qCj@.
F@;@;70ea^uAKYi.Eb-A7E+*6f+EV:*DBN1?0ek+_+B1r?<%9""=ASu!rA7]9oF*)G6@;U'<.3MT)$8<SS1,pCU6jd-H;e7
C#1,U1&Ft""Og2'=;YEa`c,ASu!rA8,po+Dk\3BQ%F&+CT;%+CQ]A1,'h!Ft""Oh2'=;UBl%3eCh4`'DBMbD7O]H>0H_br.:""&q8d[6p/M
T()<(%'A;f?Ma+CT;%+E_a:A0>K&EZek1D/aN,F)u&6DBNA*A0>f4BOu4*+EM76E,9eK+B3(_<%9""p.!0AMEb031ATMF#F<G%,DIIR2+Cno
&@3B9%+CT.1.3LK*+=KNS6V0ilAoD^,@<=+N>p**=$</Jt-rY&$AKYo'+EV:.+Cf>,E,oN2F(oQ1+D#G#De*R""B-;&&FD,T'F!+n3AKY4b
F*22=@:F%a+=SF4C'moi+=Li?EZeh0FD)e-@<>p#@;]TuBl.9kATKCFGA(],AKYo5BOu4*+CT;%+C#7pF_Pr+@VfTuDf0B:+=SF4C'moi+=
Li?EZek1DKKT1F`2DD/TboKAKY](@:s.m/h%oBC'mC/$>""*cF*)G6@;Q?_DIdZpC&~>";
var result = filter.Decode(Encoding.ASCII.GetBytes(input), new PdfDictionary(), 0);
var text = Encoding.ASCII.GetString(result);
const string expected = @"1 0 obj
private const string PdfContent = @"1 0 obj
<< /Length 568 >>
stream
2 J
@@ -73,7 +56,44 @@ ET
endstream
endobj";
Assert.Equal(expected.Replace("\r\n", "\n"), text);
[Fact]
public void DecodesEncodedPdfContent()
{
const string input =
@"0d&.mDdmGg4?O`>9P&*SFD)dS2E2gC4pl@QEb/Zr$8N_r$:7]!01IZ=0eskNAdU47<+?7h+B3Ol2_m!C+?)#1+B1
`9>:<KhASu!rA7]9oF*)G6@;U'.@ps6t@V$[&ART*lARTXoCj@HP2DlU*/0HBI+B1r?0H_r%1a#ac$<nof.3LB""+=MAS+D58'ATD3qCj@.
F@;@;70ea^uAKYi.Eb-A7E+*6f+EV:*DBN1?0ek+_+B1r?<%9""=ASu!rA7]9oF*)G6@;U'<.3MT)$8<SS1,pCU6jd-H;e7
C#1,U1&Ft""Og2'=;YEa`c,ASu!rA8,po+Dk\3BQ%F&+CT;%+CQ]A1,'h!Ft""Oh2'=;UBl%3eCh4`'DBMbD7O]H>0H_br.:""&q8d[6p/M
T()<(%'A;f?Ma+CT;%+E_a:A0>K&EZek1D/aN,F)u&6DBNA*A0>f4BOu4*+EM76E,9eK+B3(_<%9""p.!0AMEb031ATMF#F<G%,DIIR2+Cno
&@3B9%+CT.1.3LK*+=KNS6V0ilAoD^,@<=+N>p**=$</Jt-rY&$AKYo'+EV:.+Cf>,E,oN2F(oQ1+D#G#De*R""B-;&&FD,T'F!+n3AKY4b
F*22=@:F%a+=SF4C'moi+=Li?EZeh0FD)e-@<>p#@;]TuBl.9kATKCFGA(],AKYo5BOu4*+CT;%+C#7pF_Pr+@VfTuDf0B:+=SF4C'moi+=
Li?EZek1DKKT1F`2DD/TboKAKY](@:s.m/h%oBC'mC/$>""*cF*)G6@;Q?_DIdZpC&~>";
var result = filter.Decode(Encoding.ASCII.GetBytes(input), new PdfDictionary(), 0);
var text = Encoding.ASCII.GetString(result);
Assert.Equal(PdfContent.Replace("\r\n", "\n"), text);
}
[Fact]
public void DecodesEncodedPdfContentMissingEndOfDataSymbol()
{
const string input =
@"0d&.mDdmGg4?O`>9P&*SFD)dS2E2gC4pl@QEb/Zr$8N_r$:7]!01IZ=0eskNAdU47<+?7h+B3Ol2_m!C+?)#1+B1
`9>:<KhASu!rA7]9oF*)G6@;U'.@ps6t@V$[&ART*lARTXoCj@HP2DlU*/0HBI+B1r?0H_r%1a#ac$<nof.3LB""+=MAS+D58'ATD3qCj@.
F@;@;70ea^uAKYi.Eb-A7E+*6f+EV:*DBN1?0ek+_+B1r?<%9""=ASu!rA7]9oF*)G6@;U'<.3MT)$8<SS1,pCU6jd-H;e7
C#1,U1&Ft""Og2'=;YEa`c,ASu!rA8,po+Dk\3BQ%F&+CT;%+CQ]A1,'h!Ft""Oh2'=;UBl%3eCh4`'DBMbD7O]H>0H_br.:""&q8d[6p/M
T()<(%'A;f?Ma+CT;%+E_a:A0>K&EZek1D/aN,F)u&6DBNA*A0>f4BOu4*+EM76E,9eK+B3(_<%9""p.!0AMEb031ATMF#F<G%,DIIR2+Cno
&@3B9%+CT.1.3LK*+=KNS6V0ilAoD^,@<=+N>p**=$</Jt-rY&$AKYo'+EV:.+Cf>,E,oN2F(oQ1+D#G#De*R""B-;&&FD,T'F!+n3AKY4b
F*22=@:F%a+=SF4C'moi+=Li?EZeh0FD)e-@<>p#@;]TuBl.9kATKCFGA(],AKYo5BOu4*+CT;%+C#7pF_Pr+@VfTuDf0B:+=SF4C'moi+=
Li?EZek1DKKT1F`2DD/TboKAKY](@:s.m/h%oBC'mC/$>""*cF*)G6@;Q?_DIdZpC&";
var result = filter.Decode(Encoding.ASCII.GetBytes(input), new PdfDictionary(), 0);
var text = Encoding.ASCII.GetString(result);
Assert.Equal(PdfContent.Replace("\r\n", "\n"), text);
}
}
}

7
src/UglyToad.Pdf/Filters/Ascii85Filter.cs
View File

@@ -52,6 +52,8 @@
WriteData(asciiBuffer, index, writer);
}
index = 0;
// The end
break;
}
@@ -88,6 +90,11 @@
}
}
if (index > 0)
{
WriteData(asciiBuffer, index, writer);
}
writer.Flush();
return stream.ToArray();