mirrors/pdf.js
1
0
Fork 0
mirror of https://github.com/mozilla/pdf.js.git synced 2025-04-22 16:18:08 +02:00
Code Activity

Ensure that we handle indirect objects in all types of Opt entries in ChoiceWidget annotation dictionaries

Browse source 
I haven't got an example where the current code breaks, but given all the previous cases we've seen where PDF generators use indirect objects in Arrays it makes sense to fix this pro-actively.
I've modified the relevant unit-tests slightly, and they would *not* pass without the code changes in this patch.

*Note:* `Dict_getArray` only dereferences Array elements on the "top-level", to avoid recursion issues. Furthermore if you have to loop through the Array at the call-site anyway, then using `Dict_get` in combination with `XRef_fetchIfRef` is a tiny bit more efficient.
This commit is contained in:
Jonas Jenwald 2016-12-17 13:34:18 +01:00
parent a719b71e59
commit bd91f34513
2 changed files with 21 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

10
src/core/annotation.js
View file

@ -779,14 +779,16 @@ var ChoiceWidgetAnnotation = (function ChoiceWidgetAnnotationClosure() {
// it to an array of arrays as well for convenience in the display layer.
this.data.options = [];
var options = params.dict.getArray('Opt');
var options = params.dict.get('Opt');
if (isArray(options)) {
var xref = params.xref;
for (var i = 0, ii = options.length; i < ii; i++) {
var option = options[i];
var option = xref.fetchIfRef(options[i]);
var isOptionArray = isArray(option);
this.data.options[i] = {
exportValue: isArray(option) ? option[0] : option,
displayValue: isArray(option) ? option[1] : option,
exportValue: isOptionArray ? xref.fetchIfRef(option[0]) : option,
displayValue: isOptionArray ? xref.fetchIfRef(option[1]) : option,
};
}
}