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zgapdfsigner
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Fixed the wrong calculation of signature's y position and the broken signature issue.

pull/2/head
zboris12 2022-10-01 17:20:53 +09:00
parent f932a2bb2a
commit 8fbedd2c8a
1 changed files with 14 additions and 4 deletions
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18
zgapdfsigner.js
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@ -267,7 +267,16 @@ PdfSigner: class {
cert = a_cert; cert = a_cert;
} }
}); });
if(!cert){ if(cert){
// When converting to asn1, forge will encode the value of issuer to utf8 if the valueTagClass is UTF8.
// But the value load from pfx is already utf8 encoded, so the encoding action will break the final signature.
// To avoid the broken signature issue, we decode the value before the other actions.
cert.issuer.attributes.forEach(function(a_ele, a_idx, a_arr){
if(a_ele.valueTagClass === forge.asn1.Type.UTF8){
a_ele.value = forge.util.decodeUtf8(a_ele.value);
}
});
}else{
throw new Error("Failed to find a certificate."); throw new Error("Failed to find a certificate.");
} }
@ -567,22 +576,23 @@ VisualSignature: class {
case 90: case 90:
ret.w = visinf.h; ret.w = visinf.h;
ret.h = visinf.w; ret.h = visinf.w;
ret.x = visinf.y; ret.x = visinf.y + visinf.h;
ret.y = visinf.x; ret.y = visinf.x;
break; break;
case 180: case 180:
case -180: case -180:
ret.x = pgsz.width - visinf.x; ret.x = pgsz.width - visinf.x;
ret.y = visinf.y + visinf.h;
break; break;
case 270: case 270:
case -90: case -90:
ret.w = visinf.h; ret.w = visinf.h;
ret.h = visinf.w; ret.h = visinf.w;
ret.x = pgsz.width - visinf.y; ret.x = pgsz.width - visinf.y - visinf.h;
ret.y = pgsz.height - visinf.x; ret.y = pgsz.height - visinf.x;
break; break;
default: default:
ret.y = pgsz.height - visinf.y; ret.y = pgsz.height - visinf.y - visinf.h;
} }
return ret; return ret;
} }