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#29 skip mediaboxes or cropboxes with the wrong dimensions and log an error.

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Eliot Jones
2019-01-21 18:34:24 +00:00
parent 1e5d790b7f
commit 5c091aeba7
1 changed files with 22 additions and 4 deletions
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26
src/UglyToad.PdfPig/Parser/PageFactory.cs
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@@ -53,8 +53,8 @@
throw new InvalidOperationException($"Page {number} had its type specified as {type} rather than 'Page'.");
}
MediaBox mediaBox = GetMediaBox(number, dictionary, pageTreeMembers, isLenientParsing);
CropBox cropBox = GetCropBox(dictionary, pageTreeMembers, mediaBox);
MediaBox mediaBox = GetMediaBox(number, dictionary, pageTreeMembers, log, isLenientParsing);
CropBox cropBox = GetCropBox(dictionary, pageTreeMembers, mediaBox, log, isLenientParsing);
UserSpaceUnit userSpaceUnit = GetUserSpaceUnits(dictionary);
@@ -128,11 +128,20 @@
return spaceUnits;
}
private static CropBox GetCropBox(DictionaryToken dictionary, PageTreeMembers pageTreeMembers, MediaBox mediaBox)
private static CropBox GetCropBox(DictionaryToken dictionary, PageTreeMembers pageTreeMembers, MediaBox mediaBox, ILog log, bool isLenientParsing)
{
CropBox cropBox;
if (dictionary.TryGet(NameToken.CropBox, out var cropBoxObject) && cropBoxObject is ArrayToken cropBoxArray)
{
if (cropBoxArray.Length != 4 && isLenientParsing)
{
log.Error($"The CropBox was the wrong length in the dictionary: {dictionary}. Array was: {cropBoxArray}.");
cropBox = new CropBox(mediaBox.Bounds);
return cropBox;
}
cropBox = new CropBox(cropBoxArray.ToIntRectangle());
}
else
@@ -143,11 +152,20 @@
return cropBox;
}
private static MediaBox GetMediaBox(int number, DictionaryToken dictionary, PageTreeMembers pageTreeMembers, bool isLenientParsing)
private static MediaBox GetMediaBox(int number, DictionaryToken dictionary, PageTreeMembers pageTreeMembers, ILog log, bool isLenientParsing)
{
MediaBox mediaBox;
if (dictionary.TryGet(NameToken.MediaBox, out var mediaboxObject) && mediaboxObject is ArrayToken mediaboxArray)
{
if (mediaboxArray.Length != 4 && isLenientParsing)
{
log.Error($"The MediaBox was the wrong length in the dictionary: {dictionary}. Array was: {mediaboxArray}.");
mediaBox = MediaBox.A4;
return mediaBox;
}
mediaBox = new MediaBox(mediaboxArray.ToIntRectangle());
}
else