优化准则:在程序中指定允许访问的文件或目录，在访问文件或目录前对路径名进行验证，确保仅允许访问指定的文件或目录

sonar-keyware-plugins-cxx/src/main/java/com/keyware/sonar/cxx/rules/checkers/FileAccessChecker.java

@@ -28,6 +28,7 @@ import org.sonar.cxx.squidbridge.checks.SquidCheck;
 @SqaleConstantRemediation("5min")
 public class FileAccessChecker extends SquidCheck<Grammar> {
     private boolean filePathChecked = false;
+    private boolean filePathUsedInIf = false;
 
     @Override
     public void init() {
@@ -47,56 +48,47 @@ public class FileAccessChecker extends SquidCheck<Grammar> {
 
     private void checkIfStatement(AstNode ifStatement) {
         AstNode condition = ifStatement.getFirstChild(CxxGrammarImpl.condition);
-
-        if (containsFilePathCheck(condition)) {
-            filePathChecked = true;
+        filePathUsedInIf = containsFilePathCheck(condition);
+        if (!filePathUsedInIf) {
+            createViolation(ifStatement, "在访问文件或目录前需要对路径名进行验证");
         }
+        filePathUsedInIf = false;
     }
 
     private void checkDeclaration(AstNode declaration) {
         AstNode declaratorNode = declaration.getFirstDescendant(CxxGrammarImpl.declarator);
-
-        if (declaratorNode != null) {
+        filePathChecked = containsFilePathCheck(declaratorNode);
+        if (declaratorNode != null && !filePathChecked) {
             String variableName = declaratorNode.getTokenOriginalValue();
-
-            if ("filePath".equals(variableName)) {
-                if (!filePathChecked) {
-                    System.out.println("在访问文件或目录前需要对路径名进行验证:"+variableName);
+            if (variableName != null && variableName.equals("filePath")) {
+                System.out.println(variableName);
                 getContext().createLineViolation(this, "在访问文件或目录前需要对路径名进行验证", declaratorNode);
             }
         }
     }
-    }
 
     private void checkStatement(AstNode statement) {
         AstNode condition = statement.getFirstChild(CxxGrammarImpl.condition);
-
-        if (containsFilePathCheck(condition)) {
-            filePathChecked = true;
-        }
+        filePathChecked = containsFilePathCheck(condition);
     }
 
-    private boolean containsFilePathCheck(AstNode condition) {
-        return recursiveCheck(condition);
+    private boolean containsFilePathCheck(AstNode node) {
+        if (node != null && node.getTokenOriginalValue().equals("filePath")) {
+            return true;
         }
-
-    private boolean recursiveCheck(AstNode node) {
-        if (node == null) {
-            return false;
-        }
-        if (node.is(CxxGrammarImpl.identifierList)) {
-            // 如果是标识符，检查是否是 filePath
-            String identifierName = node.getTokenOriginalValue();
-            return "filePath".equals(identifierName);
-        } else {
-            // 递归检查子节点
+        if (node != null) {
             for (AstNode child : node.getChildren()) {
-                if (recursiveCheck(child)) {
+                // 如果 if 中使用了 filePath，则停止递归并跳过 ifstream file（filePath） 检查
+                if (containsFilePathCheck(child)) {
                     return true;
                 }
             }
-            return false;
         }
+        return false;  // 节点或其任何子节点中找不到“filePath”
+    }
+
+    private void createViolation(AstNode node, String message) {
+        getContext().createLineViolation(this, message, node);
     }
 
 }

sonar-keyware-plugins-cxx/src/test/java/com/keyware/sonar/cxx/rules/checkers/FileAccessCheckerTest.java

@@ -27,7 +27,7 @@ public class FileAccessCheckerTest {
         var tester = CxxFileTesterHelper.create("FileAccessChecker.cc");
         SourceFile file = CxxAstScanner.scanSingleInputFile(tester.asInputFile(), checker);
         CheckMessagesVerifier.verify(file.getCheckMessages())
-                .next().atLine(8).withMessage("在访问文件或目录前需要对路径名进行验证")
+                .next().atLine(13).withMessage("在访问文件或目录前需要对路径名进行验证")
                 .noMore();
     }
 }

sonar-keyware-plugins-cxx/src/test/resources/com/keyware/sonar/cxx/rules/checkers/FileAccessChecker.cc

@@ -5,10 +5,12 @@
 using namespace std;
 
 int main() {
-     string filePath = "C:\\Users\\user\\Desktop\\test.txt";//error
 
+     string filePath = "C:\\Users\\user\\Desktop\\test.txt";
 
-    if (filePath) {
+     int a = 5;
+
+    if (a<5) {
          ifstream file(filePath);
 
          cout << "File opened successfully." <<  endl;