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correctly delimit content streams when concatenating arrays

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Eliot Jones
2019-05-11 10:49:04 +01:00
parent a108672ce8
commit 9afceed1c5
1 changed files with 11 additions and 5 deletions
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16
src/UglyToad.PdfPig/Parser/PageFactory.cs
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@@ -4,7 +4,6 @@
using System.Collections.Generic;
using Annotations;
using Content;
using Encryption;
using Exceptions;
using Filters;
using Geometry;
@@ -70,24 +69,31 @@
else if (DirectObjectFinder.TryGet<ArrayToken>(contents, pdfScanner, out var array))
{
var bytes = new List<byte>();
foreach (var item in array.Data)
for (var i = 0; i < array.Data.Count; i++)
{
var item = array.Data[i];
if (!(item is IndirectReferenceToken obj))
{
throw new PdfDocumentFormatException($"The contents contained something which was not an indirect reference: {item}.");
}
var contentStream = DirectObjectFinder.Get<StreamToken>(obj, pdfScanner);
if (contentStream == null)
{
throw new InvalidOperationException($"Could not find the contents for object {obj}.");
}
bytes.AddRange(contentStream.Decode(filterProvider));
}
if (i < array.Data.Count - 1)
{
bytes.Add((byte)'\n');
}
}
content = GetContent(bytes, cropBox, userSpaceUnit, isLenientParsing);
}
else