internal API plus brute force security

src/main/java/stirling/software/SPDF/model/AttemptCounter.java

@@ -0,0 +1,27 @@
+package stirling.software.SPDF.model;
+public class AttemptCounter {
+    private int attemptCount;
+    private long firstAttemptTime;
+
+    public AttemptCounter() {
+        this.attemptCount = 1;
+        this.firstAttemptTime = System.currentTimeMillis();
+    }
+
+    public void increment() {
+        this.attemptCount++;
+        this.firstAttemptTime = System.currentTimeMillis();
+    }
+
+    public int getAttemptCount() {
+        return attemptCount;
+    }
+
+    public long getFirstAttemptTime() {
+        return firstAttemptTime;
+    }
+
+    public boolean shouldReset(long ATTEMPT_INCREMENT_TIME) {
+        return System.currentTimeMillis() - firstAttemptTime > ATTEMPT_INCREMENT_TIME;
+    }
+}

src/main/java/stirling/software/SPDF/model/Role.java

@@ -14,7 +14,10 @@ public enum Role {
     EXTRA_LIMITED_API_USER("ROLE_EXTRA_LIMITED_API_USER", 20, 20),
 
     // 0 API calls per day and 20 web calls
-    WEB_ONLY_USER("ROLE_WEB_ONLY_USER", 0, 20);
+    WEB_ONLY_USER("ROLE_WEB_ONLY_USER", 0, 20),
+	
+	
+	INTERNAL_API_USER("STIRLING-PDF-BACKEND-API-USER", Integer.MAX_VALUE, Integer.MAX_VALUE);
 
     private final String roleId;
     private final int apiCallsPerDay;