test: Add debugging application ReadCertClient (#1382)

tests/CMakeLists.txt

@@ -7,6 +7,9 @@ set(CMAKE_CXX_STANDARD 20)
 add_library(test_util_client OBJECT util/UAClient.cpp)
 target_link_libraries(test_util_client PUBLIC open62541::open62541 Open62541Cpp::Open62541Cpp)
 
+add_executable(ReadCertClient readCertClient/ReadCertClient.cpp)
+target_link_libraries(ReadCertClient PUBLIC open62541::open62541 Open62541Cpp::Open62541Cpp)
+
 # NO_CMAKE_SYSTEM_PATH prevents the usage of 'FindGTest.cmake' from the cmake installation. As this does not include
 # GMock.
 find_package(GTest REQUIRED NO_CMAKE_SYSTEM_PACKAGE_REGISTRY)

tests/readCertClient/ReadCertClient.cpp

@@ -0,0 +1,75 @@
+
+#include <open62541/client_config_default.h>
+#include <open62541/client_highlevel.h>
+#include <open62541/plugin/log_stdout.h>
+
+#include <iostream>
+#include <memory>
+#include <string>
+
+std::ostream& operator<<(std::ostream& ostr, const UA_String& s) {
+  auto str = std::string((char*)s.data, s.length);
+  ostr << str;
+  return ostr;
+}
+
+std::ostream& operator<<(std::ostream& ostr, UA_MessageSecurityMode secMode) {
+  switch (secMode) {
+    case UA_MESSAGESECURITYMODE_INVALID: {
+      ostr << "UA_MESSAGESECURITYMODE_INVALID";
+      break;
+    }
+    case UA_MESSAGESECURITYMODE_NONE: {
+      ostr << "UA_MESSAGESECURITYMODE_NONE";
+      break;
+    }
+    case UA_MESSAGESECURITYMODE_SIGN: {
+      ostr << "UA_MESSAGESECURITYMODE_SIGN";
+      break;
+    }
+    case UA_MESSAGESECURITYMODE_SIGNANDENCRYPT: {
+      ostr << "UA_MESSAGESECURITYMODE_SIGNANDENCRYPT";
+      break;
+    }
+    default: {
+      ostr << "UA_MESSAGESECURITYMODE_UNKNOWN " << (int)secMode;
+      break;
+    }
+  }
+
+  return ostr;
+}
+
+void printEndpoint(const UA_EndpointDescription& endpointDesc) {
+  std::cout << "EndpointURL: " << endpointDesc.endpointUrl << std::endl;
+  std::cout << " SecurityPolicyUri:" << endpointDesc.securityPolicyUri << std::endl;
+  std::cout << " securityMode:" << endpointDesc.securityMode << std::endl;
+  std::cout << " ServerCert:" << endpointDesc.serverCertificate << std::endl;
+}
+
+int main(int argc, char* argv[]) {
+  std::cout << "Begin ReadCertClient" << std::endl;
+  std::string serverUri = "opc.tcp://localhost:4840";
+  if (argc >= 2) {
+    serverUri = argv[1];
+  }
+
+  std::shared_ptr<UA_Client> pClientShared(UA_Client_new(), UA_Client_delete);
+  auto pClient = pClientShared.get();
+  UA_ClientConfig_setDefault(UA_Client_getConfig(pClient));
+  size_t numEndpoints = 0;
+  UA_EndpointDescription* pEndpointDescriptions;
+  UA_StatusCode retval = UA_Client_getEndpoints(pClient, serverUri.c_str(), &numEndpoints, &pEndpointDescriptions);
+  if (retval != UA_STATUSCODE_GOOD) {
+    UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_USERLAND, "UA_Client_getEndpoints failed with status code %s", UA_StatusCode_name(retval));
+    return EXIT_FAILURE;
+  }
+
+  for (size_t i = 0; i < numEndpoints; ++i) {
+    printEndpoint(pEndpointDescriptions[i]);
+  }
+  UA_Array_delete(pEndpointDescriptions, numEndpoints, &UA_TYPES[UA_TYPES_ENDPOINTDESCRIPTION]);
+
+  std::cout << "End ReadCertClient" << std::endl;
+  return EXIT_SUCCESS;
+}