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Merge pull request #6427 from Snuffleupagus/slightly-more-robust-get-fingerprint

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Make `get fingerprint` slightly more robust against corrupt PDF files
This commit is contained in:
Tim van der Meij 2015-09-10 22:07:44 +02:00
commit 12b0b9744b
1 changed files with 4 additions and 5 deletions
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9
src/core/core.js
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@ -510,12 +510,11 @@ var PDFDocument = (function PDFDocumentClosure() {
return shadow(this, 'documentInfo', docInfo);
},
get fingerprint() {
var xref = this.xref, idArray, hash, fileID = '';
var xref = this.xref, hash, fileID = '';
var idArray = xref.trailer.get('ID');
if (xref.trailer.has('ID')) {
idArray = xref.trailer.get('ID');
}
if (idArray && isArray(idArray) && idArray[0] !== EMPTY_FINGERPRINT) {
if (idArray && isArray(idArray) && idArray[0] && isString(idArray[0]) &&
idArray[0] !== EMPTY_FINGERPRINT) {
hash = stringToBytes(idArray[0]);
} else {
if (this.stream.ensureRange) {