CA Gateway 토큰 처리

1. 기존메모리에서 따로 관리하던것을 인터스끼리 공유 할수있도록 sessionManager에서 토큰을 관리.(CAToken 관리용
cache 추가 작업)

2. ApiAuthFilter.java 에 ca 방식 토큰 인증 로직 추가.

나머지는 CA토큰 발급(BearerTokenController)처리 및 BeareTokenInfo 는 어윤삼 부장 작업본 그대로
사용.

src/main/java/com/eactive/eai/authserver/service/BearerTokenInfo.java

@@ -0,0 +1,49 @@
+package com.eactive.eai.authserver.service;
+
+import java.util.Set;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class BearerTokenInfo {
+	@JsonProperty("client_id")
+	private String clientId;
+	private Long expiresIn;
+	private Long expiresAt;
+	private Set<String> scopeSet;
+	
+	public String getClientId() {
+		return clientId;
+	}
+
+	public void setClientId(String clientId) {
+		this.clientId = clientId;
+	}
+
+	public Long getExpiresIn() {
+		return expiresIn;
+	}
+
+	public void setExpiresIn(Long expiresIn) {
+		this.expiresIn = expiresIn;
+	}
+
+	public Long getExpiresAt() {
+		return expiresAt;
+	}
+
+	public void setExpiresAt(Long expiresIn) {
+		this.expiresAt = System.currentTimeMillis() + (expiresIn * 1000);
+	}
+
+	public Set<String> getScopeSet() {
+		return scopeSet;
+	}
+
+	public void setScopeSet(Set<String> scopeSet) {
+		this.scopeSet = scopeSet;
+	}
+
+	public boolean isExpired() {
+		return System.currentTimeMillis() > expiresAt;
+	}
+}

src/main/java/com/eactive/eai/authserver/service/BearerTokenService.java

@@ -0,0 +1,73 @@
+package com.eactive.eai.authserver.service;
+
+import java.security.SecureRandom;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+
+import javax.annotation.PostConstruct;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.eactive.eai.common.session.SessionManager;
+import com.eactive.eai.common.session.SessionManagerForIgnite;
+
+@Service
+public class BearerTokenService {
+
+
+	
+	
+    public String generateCAToken(String clientId, Long expiresIn, Set<String> scopeSet) {
+    	
+
+    	
+        String token = UUID.randomUUID().toString();
+        
+        BearerTokenInfo CATokenInfo = new BearerTokenInfo();
+        CATokenInfo.setClientId(clientId);
+        CATokenInfo.setExpiresIn(expiresIn);
+        CATokenInfo.setExpiresAt(expiresIn);
+        CATokenInfo.setScopeSet(scopeSet);
+        
+        //CATokenStore.put(token, CATokenInfo);
+        
+        SessionManager.getInstance().putCAToken(token, CATokenInfo);
+        
+        return token;
+    }
+
+    public boolean validateCA(String token) {
+    	BearerTokenInfo CATokenInfo = SessionManager.getInstance().getCAToken(token);
+    	if (CATokenInfo == null) return false;
+    	
+    	if (CATokenInfo.isExpired()) {
+    		SessionManager.getInstance().removeCAToken(token);
+    		return false;
+    	}else {
+    		return true;
+    	}
+    }
+
+    public String getClientIdFromCA(String token) {
+    	BearerTokenInfo CATokenInfo = SessionManager.getInstance().getCAToken(token);
+        return CATokenInfo.getClientId();
+    }
+
+//    private static final String CHARACTERS = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+//    private static final SecureRandom secureRandom = new SecureRandom();
+//
+//    public static String generateTokenString(int length) {
+//        // Java 8의 IntStream과 Collectors.joining을 사용한 효율적인 방법
+//        return IntStream.range(0, length)
+//                .map(i -> secureRandom.nextInt(CHARACTERS.length()))
+//                .mapToObj(CHARACTERS::charAt)
+//                .map(String::valueOf)
+//                .collect(Collectors.joining());
+//    }
+}
+