ActivityPub: fix public key serialization

1 files changed, 5 insertions, 2 deletions

diff --git a/juick-server/src/main/java/com/juick/server/KeystoreManager.java b/juick-server/src/main/java/com/juick/server/KeystoreManager.java
index 8bf93a7b..75d72e72 100644
--- a/juick-server/src/main/java/com/juick/server/KeystoreManager.java
+++ b/juick-server/src/main/java/com/juick/server/KeystoreManager.java
@@ -14,6 +14,8 @@ import java.io.InputStream;
 import java.security.*;
 import java.security.cert.Certificate;
 import java.security.cert.CertificateException;
+import java.util.Arrays;
+import java.util.stream.Collectors;
 
 @Component
 public class KeystoreManager {
@@ -60,7 +62,8 @@ public class KeystoreManager {
         return null;
     }
     public String getPublicKey() {
-        return String.format("-----BEGIN RSA PUBLIC KEY-----\n%s\n-----END RSA PUBLIC KEY-----\n",
-                new String(Base64Utils.encode(getKeyPair().getPublic().getEncoded())));
+        String[] key = Base64Utils.encodeToString(getKeyPair().getPublic().getEncoded()).split("(?<=\\G.{64})");
+        return String.format("-----BEGIN PUBLIC KEY-----\n%s\n-----END PUBLIC KEY-----\n",
+                Arrays.asList(key).stream().collect(Collectors.joining("\n")));
     }
 }