refactor

src/main/java/com/alibaba/druid/filter/wall/WallConfig.java

@@ -5,6 +5,8 @@ import static com.alibaba.druid.filter.wall.spi.WallVisitorUtils.loadResource;
 import java.util.HashSet;
 import java.util.Set;
 
+import com.alibaba.druid.filter.wall.spi.WallVisitorUtils;
+
 public class WallConfig {
 
     private boolean             selelctAllow               = true;
@@ -170,4 +172,9 @@ public class WallConfig {
     public Set<String> getPermitObjects() {
         return permitObjects;
     }
+
+    public boolean containsPermitSchema(String name) {
+        name = WallVisitorUtils.form(name);
+        return this.permitSchemas.contains(name);
+    }
 }

src/main/java/com/alibaba/druid/filter/wall/WallVisitor.java

@@ -10,7 +10,7 @@ public interface WallVisitor extends SQLASTVisitor {
     WallConfig getConfig();
 
     List<Violation> getViolations();
-
+    
     boolean containsPermitTable(String name);
 
     boolean containsPermitObjects(String name);

src/main/java/com/alibaba/druid/filter/wall/spi/MySqlWallVisitor.java

@@ -165,7 +165,7 @@ public class MySqlWallVisitor extends MySqlASTVisitorAdapter implements WallVisi
 
     @Override
     public boolean visit(SQLMethodInvokeExpr x) {
-        WallVisitorUtils.check(this, x);
+        WallVisitorUtils.checkFunction(this, x);
 
         return true;
     }
@@ -202,6 +202,10 @@ public class MySqlWallVisitor extends MySqlASTVisitorAdapter implements WallVisi
 
     @Override
     public boolean containsPermitTable(String name) {
+        if (!config.isTableCheck()) {
+            return false;
+        }
+        
         name = WallVisitorUtils.form(name);
         return config.getPermitTables().contains(name);
     }

src/main/java/com/alibaba/druid/filter/wall/spi/OracleWallVisitor.java

@@ -72,7 +72,7 @@ public class OracleWallVisitor extends OracleASTVIsitorAdapter implements WallVi
 
     @Override
     public boolean visit(SQLMethodInvokeExpr x) {
-        WallVisitorUtils.check(this, x);
+        WallVisitorUtils.checkFunction(this, x);
 
         return true;
     }
@@ -127,6 +127,10 @@ public class OracleWallVisitor extends OracleASTVIsitorAdapter implements WallVi
 
     @Override
     public boolean containsPermitTable(String name) {
+        if (!config.isTableCheck()) {
+            return false;
+        }
+
         name = WallVisitorUtils.form(name);
         if (name.startsWith("v$") || name.startsWith("v_$")) {
             return true;

src/main/java/com/alibaba/druid/filter/wall/spi/WallVisitorUtils.java

@@ -387,7 +387,7 @@ public class WallVisitorUtils {
         return false;
     }
 
-    public static void check(WallVisitor visitor, SQLMethodInvokeExpr x) {
+    public static void checkFunction(WallVisitor visitor, SQLMethodInvokeExpr x) {
         if (x.getOwner() instanceof SQLIdentifierExpr) {
             String owner = x.getOwner().toString();
             owner = WallVisitorUtils.form(owner);
@@ -395,7 +395,11 @@ public class WallVisitorUtils {
                 visitor.getViolations().add(new IllegalSQLObjectViolation(visitor.toSQL(x)));
             }
         }
-
+        
+        if (!visitor.getConfig().isFunctionCheck()) {
+            return;
+        }
+        
         String methodName = x.getMethodName();
 
         if (visitor.getConfig().getPermitFunctions().contains(methodName.toLowerCase())) {