Rename client executable to bobink_opcua_client

1 files changed, 0 insertions, 393 deletions

diff --git a/src/client.c b/src/client.c
deleted file mode 100644
index 35a3e6f..0000000
--- a/src/client.c
+++ /dev/null
@@ -1,393 +0,0 @@
-/**
- * @file  client.c
- * @brief Unified OPC UA client for discovery and server interaction.
- *
- * Supports four operations selected via CLI:
- *   find-servers   — queries a server's FindServers service
- *   get-endpoints  — queries a server's GetEndpoints service
- *   read-time      — connects to a server and reads the current time
- *   download-cert  — downloads a server's certificate to a local file
- *
- * Encryption is optional: when certificate, privateKey, and trustStore are
- * provided, the client uses the configured security policy; otherwise it
- * connects without encryption.
- */
-
-#include "common.h"
-#include "config.h"
-
-#include <open62541/client_config_default.h>
-#include <open62541/client_highlevel.h>
-#include <open62541/plugin/log_stdout.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-/* ========================================================================
- * Operation Dispatch
- * ======================================================================== */
-
-typedef enum
-{
-  OP_FIND_SERVERS,
-  OP_GET_ENDPOINTS,
-  OP_READ_TIME,
-  OP_DOWNLOAD_CERT,
-  OP_INVALID
-} operation;
-
-static operation
-_s_parse_operation (const char *name)
-{
-  if (strcmp (name, "find-servers") == 0)
-    return OP_FIND_SERVERS;
-  if (strcmp (name, "get-endpoints") == 0)
-    return OP_GET_ENDPOINTS;
-  if (strcmp (name, "read-time") == 0)
-    return OP_READ_TIME;
-  if (strcmp (name, "download-cert") == 0)
-    return OP_DOWNLOAD_CERT;
-  return OP_INVALID;
-}
-
-/* ========================================================================
- * Operations
- * ======================================================================== */
-
-/**
- * Calls the FindServers service and prints all discovered servers.
- *
- * @return EXIT_SUCCESS on success, EXIT_FAILURE otherwise.
- */
-static int
-_s_op_find_servers (UA_Client *client, const char *url)
-{
-  size_t array_size = 0;
-  UA_ApplicationDescription *array = NULL;
-
-  UA_StatusCode retval = UA_Client_findServers (client, url, 0, NULL, 0, NULL,
-                                                &array_size, &array);
-  if (retval != UA_STATUSCODE_GOOD)
-    {
-      UA_LOG_ERROR (UA_Log_Stdout, UA_LOGCATEGORY_CLIENT,
-                    "FindServers failed: %s", UA_StatusCode_name (retval));
-      return EXIT_FAILURE;
-    }
-
-  for (size_t i = 0; i < array_size; i++)
-    print_application_description (&array[i], i);
-
-  UA_Array_delete (array, array_size,
-                   &UA_TYPES[UA_TYPES_APPLICATIONDESCRIPTION]);
-  return EXIT_SUCCESS;
-}
-
-/**
- * Calls the GetEndpoints service and prints all endpoints.
- *
- * @return EXIT_SUCCESS on success, EXIT_FAILURE otherwise.
- */
-static int
-_s_op_get_endpoints (UA_Client *client, const char *url)
-{
-  size_t array_size = 0;
-  UA_EndpointDescription *array = NULL;
-
-  UA_StatusCode retval
-      = UA_Client_getEndpoints (client, url, &array_size, &array);
-  if (retval != UA_STATUSCODE_GOOD)
-    {
-      UA_LOG_ERROR (UA_Log_Stdout, UA_LOGCATEGORY_CLIENT,
-                    "GetEndpoints failed: %s", UA_StatusCode_name (retval));
-      return EXIT_FAILURE;
-    }
-
-  for (size_t i = 0; i < array_size; i++)
-    print_endpoint (&array[i], i);
-
-  UA_Array_delete (array, array_size, &UA_TYPES[UA_TYPES_ENDPOINTDESCRIPTION]);
-  return EXIT_SUCCESS;
-}
-
-/**
- * Connects to a server and reads the current time node.
- *
- * Authentication (anonymous, username/password, or X509 certificate) is
- * configured in the client config before this function is called.
- *
- * @return EXIT_SUCCESS on success, EXIT_FAILURE otherwise.
- */
-static int
-_s_op_read_time (UA_Client *client, const char *url)
-{
-  UA_StatusCode retval = UA_Client_connect (client, url);
-
-  if (retval != UA_STATUSCODE_GOOD)
-    {
-      UA_LOG_ERROR (UA_Log_Stdout, UA_LOGCATEGORY_CLIENT,
-                    "Could not connect: %s", UA_StatusCode_name (retval));
-      return EXIT_FAILURE;
-    }
-
-  UA_Variant value;
-  UA_Variant_init (&value);
-
-  const UA_NodeId nodeId = UA_NS0ID (SERVER_SERVERSTATUS_CURRENTTIME);
-  retval = UA_Client_readValueAttribute (client, nodeId, &value);
-
-  int rc = EXIT_SUCCESS;
-  if (retval == UA_STATUSCODE_GOOD
-      && UA_Variant_hasScalarType (&value, &UA_TYPES[UA_TYPES_DATETIME]))
-    {
-      UA_DateTime raw_date = *(UA_DateTime *)value.data;
-      UA_DateTimeStruct dts = UA_DateTime_toStruct (raw_date);
-      UA_LOG_INFO (UA_Log_Stdout, UA_LOGCATEGORY_APPLICATION,
-                   "date is: %u-%u-%u %u:%u:%u.%03u", dts.day, dts.month,
-                   dts.year, dts.hour, dts.min, dts.sec, dts.milliSec);
-    }
-  else
-    {
-      UA_LOG_ERROR (UA_Log_Stdout, UA_LOGCATEGORY_CLIENT,
-                    "Could not read current time: %s",
-                    UA_StatusCode_name (retval));
-      rc = EXIT_FAILURE;
-    }
-
-  UA_Variant_clear (&value);
-  UA_Client_disconnect (client);
-  return rc;
-}
-
-/**
- * Downloads the server's certificate via GetEndpoints and writes it to a file.
- *
- * Picks the first endpoint that carries a non-empty serverCertificate.
- *
- * @return EXIT_SUCCESS on success, EXIT_FAILURE otherwise.
- */
-static int
-_s_op_download_cert (UA_Client *client, const char *url,
-                     const char *output_path)
-{
-  size_t array_size = 0;
-  UA_EndpointDescription *array = NULL;
-
-  UA_StatusCode retval
-      = UA_Client_getEndpoints (client, url, &array_size, &array);
-  if (retval != UA_STATUSCODE_GOOD)
-    {
-      UA_LOG_ERROR (UA_Log_Stdout, UA_LOGCATEGORY_CLIENT,
-                    "GetEndpoints failed: %s", UA_StatusCode_name (retval));
-      return EXIT_FAILURE;
-    }
-
-  UA_ByteString *cert = NULL;
-  for (size_t i = 0; i < array_size; i++)
-    {
-      if (array[i].serverCertificate.length > 0)
-        {
-          cert = &array[i].serverCertificate;
-          break;
-        }
-    }
-
-  if (!cert)
-    {
-      UA_LOG_ERROR (UA_Log_Stdout, UA_LOGCATEGORY_CLIENT,
-                    "No endpoint returned a server certificate");
-      UA_Array_delete (array, array_size,
-                       &UA_TYPES[UA_TYPES_ENDPOINTDESCRIPTION]);
-      return EXIT_FAILURE;
-    }
-
-  FILE *fp = fopen (output_path, "wb");
-  if (!fp)
-    {
-      UA_LOG_ERROR (UA_Log_Stdout, UA_LOGCATEGORY_CLIENT,
-                    "Could not open output file: %s", output_path);
-      UA_Array_delete (array, array_size,
-                       &UA_TYPES[UA_TYPES_ENDPOINTDESCRIPTION]);
-      return EXIT_FAILURE;
-    }
-
-  size_t written = fwrite (cert->data, 1, cert->length, fp);
-  fclose (fp);
-
-  int rc;
-  if (written != cert->length)
-    {
-      UA_LOG_ERROR (UA_Log_Stdout, UA_LOGCATEGORY_CLIENT,
-                    "Failed to write certificate (%zu of %zu bytes)", written,
-                    cert->length);
-      rc = EXIT_FAILURE;
-    }
-  else
-    {
-      UA_LOG_INFO (UA_Log_Stdout, UA_LOGCATEGORY_CLIENT,
-                   "Certificate saved to %s (%zu bytes)", output_path,
-                   cert->length);
-      rc = EXIT_SUCCESS;
-    }
-
-  UA_Array_delete (array, array_size, &UA_TYPES[UA_TYPES_ENDPOINTDESCRIPTION]);
-  return rc;
-}
-
-/* ========================================================================
- * Main
- * ======================================================================== */
-
-int
-main (int argc, char **argv)
-{
-  if (argc < 4)
-    {
-      UA_LOG_FATAL (UA_Log_Stdout, UA_LOGCATEGORY_USERLAND,
-                    "Usage: %s <config-file> <operation> <endpoint-url> "
-                    "[log-level]\n"
-                    "       %s <config-file> download-cert <endpoint-url> "
-                    "<output-file> [log-level]\n"
-                    "Operations: find-servers, get-endpoints, read-time, "
-                    "download-cert",
-                    argv[0], argv[0]);
-      return EXIT_FAILURE;
-    }
-
-  operation op = _s_parse_operation (argv[2]);
-  if (op == OP_INVALID)
-    {
-      UA_LOG_FATAL (UA_Log_Stdout, UA_LOGCATEGORY_USERLAND,
-                    "Unknown operation: %s (expected find-servers, "
-                    "get-endpoints, read-time, download-cert)",
-                    argv[2]);
-      return EXIT_FAILURE;
-    }
-
-  const char *endpoint_url = argv[3];
-  const char *output_path = NULL;
-  const char *log_level_str = "info";
-
-  if (op == OP_DOWNLOAD_CERT)
-    {
-      if (argc < 5 || argc > 6)
-        {
-          UA_LOG_FATAL (UA_Log_Stdout, UA_LOGCATEGORY_USERLAND,
-                        "Usage: %s <config-file> download-cert "
-                        "<endpoint-url> <output-file> [log-level]",
-                        argv[0]);
-          return EXIT_FAILURE;
-        }
-      output_path = argv[4];
-      log_level_str = (argc == 6) ? argv[5] : "info";
-    }
-  else
-    {
-      if (argc > 5)
-        {
-          UA_LOG_FATAL (UA_Log_Stdout, UA_LOGCATEGORY_USERLAND,
-                        "Usage: %s <config-file> <operation> <endpoint-url> "
-                        "[log-level]",
-                        argv[0]);
-          return EXIT_FAILURE;
-        }
-      log_level_str = (argc == 5) ? argv[4] : "info";
-    }
-  int log_level = parse_log_level (log_level_str);
-  if (log_level < 0)
-    {
-      UA_LOG_FATAL (UA_Log_Stdout, UA_LOGCATEGORY_USERLAND,
-                    "Unknown log level: %s "
-                    "(expected trace, debug, info, warning, error, fatal)",
-                    log_level_str);
-      return EXIT_FAILURE;
-    }
-
-  config cfg;
-  if (config_load (argv[1], &cfg) != 0)
-    return EXIT_FAILURE;
-
-  /* ---- Common config keys ---- */
-
-  const char *application_uri
-      = config_require (&cfg, "applicationUri", "Client");
-  if (!application_uri)
-    {
-      config_free (&cfg);
-      return EXIT_FAILURE;
-    }
-
-  security_config sec;
-  if (parse_security_config (&cfg, "Client", true, &sec) != 0)
-    {
-      config_free (&cfg);
-      return EXIT_FAILURE;
-    }
-
-  /* ---- Auth config (read-time only) ---- */
-
-  auth_config auth = { .mode = AUTH_ANONYMOUS };
-
-  if (op == OP_READ_TIME && parse_auth_config (&cfg, "Client", &auth) != 0)
-    {
-      free_trust_store (sec.trust_paths, sec.trust_size);
-      config_free (&cfg);
-      return EXIT_FAILURE;
-    }
-
-  /* ---- Create client ---- */
-
-  UA_Client *client = UA_Client_new ();
-
-  UA_StatusCode retval;
-  if (op == OP_DOWNLOAD_CERT)
-    retval = create_unsecure_client_config (UA_Client_getConfig (client),
-                                            application_uri, NULL);
-  else if (sec.cert_path)
-    retval = create_secure_client_config (UA_Client_getConfig (client),
-                                          application_uri, &sec, &auth);
-  else
-    retval = create_unsecure_client_config (UA_Client_getConfig (client),
-                                            application_uri, &auth);
-
-  if (retval != UA_STATUSCODE_GOOD)
-    {
-      UA_Client_delete (client);
-      free_trust_store (sec.trust_paths, sec.trust_size);
-      config_free (&cfg);
-      return EXIT_FAILURE;
-    }
-
-  UA_Client_getConfig (client)->logging->context
-      = (void *)(uintptr_t)log_level;
-
-  /* ---- Dispatch operation ---- */
-
-  int rc;
-  switch (op)
-    {
-    case OP_FIND_SERVERS:
-      rc = _s_op_find_servers (client, endpoint_url);
-      break;
-    case OP_GET_ENDPOINTS:
-      rc = _s_op_get_endpoints (client, endpoint_url);
-      break;
-    case OP_READ_TIME:
-      rc = _s_op_read_time (client, endpoint_url);
-      break;
-    case OP_DOWNLOAD_CERT:
-      rc = _s_op_download_cert (client, endpoint_url, output_path);
-      break;
-    default:
-      rc = EXIT_FAILURE;
-      break;
-    }
-
-  /* ---- Cleanup ---- */
-
-  UA_Client_delete (client);
-  free_trust_store (sec.trust_paths, sec.trust_size);
-  config_free (&cfg);
-
-  return rc;
-}