More fixes

src/main/java/org/operaton/fitpub/security/HttpSignatureValidator.java

@@ -197,6 +197,23 @@ public class HttpSignatureValidator {
         return Base64.getEncoder().encodeToString(signature);
     }
 
+    /**
+     * Container for HTTP signature headers.
+     */
+    public static class SignatureHeaders {
+        public final String host;
+        public final String date;
+        public final String digest;
+        public final String signature;
+
+        public SignatureHeaders(String host, String date, String digest, String signature) {
+            this.host = host;
+            this.date = date;
+            this.digest = digest;
+            this.signature = signature;
+        }
+    }
+
     /**
      * Signs an outbound HTTP request for ActivityPub federation.
      *
@@ -205,9 +222,9 @@ public class HttpSignatureValidator {
      * @param body the request body
      * @param privateKeyPem the sender's private key
      * @param keyId the public key ID
-     * @return the Signature header value
+     * @return SignatureHeaders containing all headers needed for the signed request
      */
-    public String signRequest(String method, String targetUrl, String body, String privateKeyPem, String keyId) {
+    public SignatureHeaders signRequest(String method, String targetUrl, String body, String privateKeyPem, String keyId) {
         try {
             java.net.URI uri = new java.net.URI(targetUrl);
             String host = uri.getHost();
@@ -239,11 +256,13 @@ public class HttpSignatureValidator {
             String signatureBase64 = sign(signingString, privateKeyPem);
 
             // Build signature header
-            return String.format(
+            String signatureHeader = String.format(
                 "keyId=\"%s\",algorithm=\"rsa-sha256\",headers=\"(request-target) host date digest\",signature=\"%s\"",
                 keyId, signatureBase64
             );
 
+            return new SignatureHeaders(host, date, digestValue, signatureHeader);
+
         } catch (Exception e) {
             log.error("Failed to sign request", e);
             throw new RuntimeException("Failed to sign request", e);

src/main/java/org/operaton/fitpub/service/FederationService.java

@@ -166,19 +166,24 @@ public class FederationService {
         try {
             String activityJson = objectMapper.writeValueAsString(activity);
 
-            HttpHeaders headers = new HttpHeaders();
-            headers.set("Content-Type", "application/activity+json");
-            headers.set("Accept", "application/activity+json");
-
-            // Add HTTP signature
-            String signature = signatureValidator.signRequest(
+            // Generate HTTP signature with all required headers
+            HttpSignatureValidator.SignatureHeaders signatureHeaders = signatureValidator.signRequest(
                 HttpMethod.POST.name(),
                 inboxUrl,
                 activityJson,
                 sender.getPrivateKey(),
                 baseUrl + "/users/" + sender.getUsername() + "#main-key"
             );
-            headers.set("Signature", signature);
+
+            HttpHeaders headers = new HttpHeaders();
+            headers.set("Content-Type", "application/activity+json");
+            headers.set("Accept", "application/activity+json");
+
+            // Add all signature-related headers
+            headers.set("Host", signatureHeaders.host);
+            headers.set("Date", signatureHeaders.date);
+            headers.set("Digest", signatureHeaders.digest);
+            headers.set("Signature", signatureHeaders.signature);
 
             HttpEntity<String> entity = new HttpEntity<>(activityJson, headers);
 

src/main/resources/application-dev.yml

@@ -2,8 +2,11 @@
 # Activated with: mvn spring-boot:run -Dspring-boot.run.profiles=dev
 
 spring:
-  # Development datasource is handled by Testcontainers (see TestcontainersConfiguration)
-  # No need to configure datasource here - it's automatically configured
+  datasource:
+    url: jdbc:postgresql://localhost:5432/fitpub
+    username: fitpub
+    password: change_me_in_production
+    driver-class-name: org.postgresql.Driver
 
   jpa:
     hibernate: