From d67fa44b995994d71eb0dd42c63bb6abea52a0cb Mon Sep 17 00:00:00 2001
From: Jan Zickermann <jan.zickermann@dataport.de>
Date: Fri, 8 Nov 2024 14:39:41 +0100
Subject: [PATCH] #2 Cleanup JwtParser
---
.../postfach/osiv2/extension/JwtParser.java | 24 +++++++++++++------
1 file changed, 17 insertions(+), 7 deletions(-)
diff --git a/src/test/java/de/ozgcloud/nachrichten/postfach/osiv2/extension/JwtParser.java b/src/test/java/de/ozgcloud/nachrichten/postfach/osiv2/extension/JwtParser.java
index 3135ab4..85c18ed 100644
--- a/src/test/java/de/ozgcloud/nachrichten/postfach/osiv2/extension/JwtParser.java
+++ b/src/test/java/de/ozgcloud/nachrichten/postfach/osiv2/extension/JwtParser.java
@@ -11,17 +11,27 @@ public class JwtParser {
@SneakyThrows
public static ReadContext parseBody(String authorizationHeaderValue) {
- var jwt = authorizationHeaderValue.substring("Bearer ".length());
- // Step 2: Split the JWT
- String[] jwtParts = jwt.split("\\.");
+ var jwtParts = splitIntoSignatureAndHeaderAndBody(
+ discardBearerPrefix(authorizationHeaderValue)
+ );
+ var bodyPart = jwtParts[1];
+ return parseJsonPartFromUrlEncodedBase64(bodyPart);
+ }
+
+ private static ReadContext parseJsonPartFromUrlEncodedBase64(String base64EncodedPayload) {
+ return JsonPath.parse(new String(base64UrlDecode(base64EncodedPayload)));
+ }
+ private static String discardBearerPrefix(String authorizationHeaderValue) {
+ return authorizationHeaderValue.substring("Bearer ".length());
+ }
+
+ private static String[] splitIntoSignatureAndHeaderAndBody(String jwt) {
+ var jwtParts = jwt.split("\\.");
if (jwtParts.length != 3) {
throw new IllegalArgumentException("Invalid JWT token");
}
-
- // Step 3: Base64Url decode the Payload part
- var payloadJson = base64UrlDecode(jwtParts[1]);
- return JsonPath.parse(new String(payloadJson));
+ return jwtParts;
}
private static byte[] base64UrlDecode(String input) {
--
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