Issue #24: Annotationen für formularbasierte Berechtigungsprüfung

1 files changed, 74 insertions, 0 deletions

diff --git a/src/main/java/DNPM/security/PersonPoolBasedSecurityAspects.java b/src/main/java/DNPM/security/PersonPoolBasedSecurityAspects.java
new file mode 100644
index 0000000..37c313f
--- /dev/null
+++ b/src/main/java/DNPM/security/PersonPoolBasedSecurityAspects.java
@@ -0,0 +1,74 @@
+package DNPM.security;
+
+import de.itc.onkostar.api.Patient;
+import de.itc.onkostar.api.Procedure;
+import org.aspectj.lang.JoinPoint;
+import org.aspectj.lang.annotation.AfterReturning;
+import org.aspectj.lang.annotation.Aspect;
+import org.aspectj.lang.annotation.Before;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.stereotype.Component;
+
+import java.util.Arrays;
+
+@Component
+@Aspect
+public class PersonPoolBasedSecurityAspects {
+
+    private final Logger logger = LoggerFactory.getLogger(this.getClass());
+
+    private final PersonPoolBasedPermissionEvaluator permissionEvaluator;
+
+    public PersonPoolBasedSecurityAspects(PersonPoolBasedPermissionEvaluator permissionEvaluator) {
+        this.permissionEvaluator = permissionEvaluator;
+    }
+
+    @AfterReturning(value = "@annotation(PersonPoolSecuredResult) ", returning = "patient")
+    public void afterPatient(Patient patient) {
+        if (
+                null != patient
+                        && ! permissionEvaluator.hasPermission(SecurityContextHolder.getContext().getAuthentication(), patient, PermissionType.READ_WRITE)
+        ) {
+            logger.warn("Rückgabe von Patient blockiert: {}", patient.getId());
+            throw new IllegalSecuredObjectAccessException();
+        }
+    }
+
+    @AfterReturning(value = "@annotation(PersonPoolSecuredResult)", returning = "procedure")
+    public void afterProcedure(Procedure procedure) {
+        if (
+                null != procedure
+                        && ! permissionEvaluator.hasPermission(SecurityContextHolder.getContext().getAuthentication(), procedure, PermissionType.READ_WRITE)
+        ) {
+            logger.warn("Rückgabe von Prozedur blockiert: {}", procedure.getId());
+            throw new IllegalSecuredObjectAccessException();
+        }
+    }
+
+    @Before(value = "@annotation(PersonPoolSecured)")
+    public void beforePatient(JoinPoint jp) {
+        Arrays.stream(jp.getArgs())
+                .filter(arg -> arg instanceof Patient)
+                .forEach(patient -> {
+                    if (! permissionEvaluator.hasPermission(SecurityContextHolder.getContext().getAuthentication(), patient, PermissionType.READ_WRITE)) {
+                        logger.warn("Zugriff auf Patient blockiert: {}", ((Patient)patient).getId());
+                        throw new IllegalSecuredObjectAccessException();
+                    }
+                });
+    }
+
+    @Before(value = "@annotation(PersonPoolSecured)")
+    public void beforeProcedure(JoinPoint jp) {
+        Arrays.stream(jp.getArgs())
+                .filter(arg -> arg instanceof Procedure)
+                .forEach(procedure -> {
+                    if (! permissionEvaluator.hasPermission(SecurityContextHolder.getContext().getAuthentication(), procedure, PermissionType.READ_WRITE)) {
+                        logger.warn("Zugriff auf Prozedur blockiert: {}", ((Procedure)procedure).getId());
+                        throw new IllegalSecuredObjectAccessException();
+                    }
+                });
+    }
+
+}