feature: enabled authentication

lib/jsonrpc/include/jsonrpc/proxy.h

@@ -33,7 +33,20 @@ jsonrpc_proxy_create(
 extern JSONRPC_API void jsonrpc_proxy_dispose(
     struct jsonrpc_proxy * proxy);
 
-
+//------------------------------------------------------------------------------
+/// \brief Invokes a method.
+///
+/// Creates a method an sends it using the send function.
+/// Proxy keeps track of method invokation. If no response is returned within
+/// timeout, an error is propagated.
+///
+/// \param proxy pointer to proxy instance
+/// \param finished function which is called exactly once, either on success or
+///                 on failure.
+/// \param method_name name of the method to invoke
+/// \param param_info types of the param (s = string, i = integer, j = json)
+/// \param ... params
+//------------------------------------------------------------------------------
 extern JSONRPC_API void jsonrpc_proxy_invoke(
 	struct jsonrpc_proxy * proxy,
 	jsonrpc_proxy_finished_fn * finished,

lib/jsonrpc/src/jsonrpc/impl/proxy.c

@@ -76,6 +76,12 @@ static json_t * jsonrpc_impl_request_create(
 				int const value = va_arg(args, int);
 				json_array_append_new(params, json_integer(value));
 			}
+			break;
+            case 'j':
+            {
+                json_t * const value = va_arg(args, json_t *);
+                json_array_append_new(params, value);
+            }
             break;
 			default:
 			fprintf(stderr, "fatal: unknown param_type '%c'\n", *param_type);

lib/webfuse/provider/impl/client_protocol.c

@@ -8,6 +8,7 @@
 
 #include "webfuse/provider/impl/client_config.h"
 #include "webfuse/provider/impl/provider.h"
+#include "webfuse/provider/impl/credentials.h"
 #include "webfuse/core/util.h"
 #include "webfuse/core/message.h"
 #include "webfuse/core/message_queue.h"
@@ -67,7 +68,7 @@ static void wfp_impl_client_protocol_process(
 }
 
 static void 
-wfp_impl_client_protocol_on_authenticate_finished(
+wfp_impl_client_protocol_on_add_filesystem_finished(
 	void * user_data,
 	json_t const * result,
 	json_t const * WF_UNUSED_PARAM(error))    
@@ -92,13 +93,69 @@ static void wfp_impl_client_protocol_add_filesystem(
 {
     jsonrpc_proxy_invoke(
         protocol->proxy, 
-        &wfp_impl_client_protocol_on_authenticate_finished,
+        &wfp_impl_client_protocol_on_add_filesystem_finished,
         protocol,
         "add_filesystem",
         "s",
         "cprovider");
 }
 
+static void 
+wfp_impl_client_protocol_on_authenticate_finished(
+	void * user_data,
+	json_t const * result,
+	json_t const * WF_UNUSED_PARAM(error))    
+{
+    struct wfp_client_protocol * protocol = user_data;
+    if (NULL == protocol->wsi) { return; }
+
+    if (NULL != result)
+    {
+        wfp_impl_client_protocol_add_filesystem(protocol);
+    }
+    else
+    {
+        protocol->is_shutdown_requested = true;
+        lws_callback_on_writable(protocol->wsi);
+    }    
+}
+
+static void wfp_impl_client_protocol_authenticate(
+    struct wfp_client_protocol * protocol)
+{
+    struct wfp_credentials credentials;
+    wfp_impl_credentials_init(&credentials);
+
+    protocol->provider.get_credentials(&credentials, protocol->user_data);
+
+    char const * cred_type = wfp_impl_credentials_get_type(&credentials);
+    json_t * creds = wfp_impl_credentials_get(&credentials);
+    json_incref(creds);
+
+    jsonrpc_proxy_invoke(
+        protocol->proxy, 
+        &wfp_impl_client_protocol_on_authenticate_finished, 
+        protocol, 
+        "authenticate", 
+        "sj",
+        cred_type, creds);
+
+    wfp_impl_credentials_cleanup(&credentials);
+}
+
+static void wfp_impl_client_protocol_handshake(
+    struct wfp_client_protocol * protocol)
+{
+    if (wfp_impl_provider_is_authentication_enabled(&protocol->provider))
+    {
+        wfp_impl_client_protocol_authenticate(protocol);
+    }
+    else
+    {
+        wfp_impl_client_protocol_add_filesystem(protocol);
+    }
+}
+
 static int wfp_impl_client_protocol_callback(
 	struct lws * wsi,
 	enum lws_callback_reasons reason,
@@ -117,7 +174,7 @@ static int wfp_impl_client_protocol_callback(
         switch (reason)
         {
         case LWS_CALLBACK_CLIENT_ESTABLISHED:
-            wfp_impl_client_protocol_add_filesystem(protocol);
+            wfp_impl_client_protocol_handshake(protocol);
             break;
         case LWS_CALLBACK_CLIENT_CONNECTION_ERROR:
             protocol->is_connected = false;

lib/webfuse/provider/impl/credentials.c

@@ -32,3 +32,15 @@ void wfp_impl_credentials_add(
 {
     json_object_set_new(credentials->contents, key, json_string(value));
 }
+
+char const * wfp_impl_credentials_get_type(
+    struct wfp_credentials * credentials)
+{
+    return credentials->type;
+}
+
+json_t * wfp_impl_credentials_get(
+    struct wfp_credentials * credentials)
+{
+    return credentials->contents;
+}

lib/webfuse/provider/impl/credentials.h

@@ -30,6 +30,11 @@ extern void wfp_impl_credentials_add(
     char const * key,
     char const * value);
 
+extern char const * wfp_impl_credentials_get_type(
+    struct wfp_credentials * credentials);
+
+extern json_t * wfp_impl_credentials_get(
+    struct wfp_credentials * credentials);
 
 #ifdef __cplusplus
 }

lib/webfuse/provider/impl/provider.c

@@ -127,3 +127,10 @@ void wfp_impl_ontimer_default(
 
     // empty
 }
+
+ bool wfp_impl_provider_is_authentication_enabled(
+    struct wfp_provider * provider)
+{
+    return (NULL != provider->get_credentials);
+}
+

lib/webfuse/provider/impl/provider.h

@@ -1,9 +1,14 @@
 #ifndef WF_PROVIDER_IMPL_PROVIDER_H
 #define WF_PROVIDER_IMPL_PROVIDER_H
 
+#ifndef __cplusplus
+#include <stdbool.h>
+#endif
+
 #include <jansson.h>
 #include "webfuse/provider/client_config.h"
 
+
 #ifdef __cplusplus
 extern "C"
 {
@@ -42,6 +47,9 @@ extern void wfp_impl_provider_invoke(
     struct wfp_impl_invokation_context * context,
     json_t * request);
 
+extern bool wfp_impl_provider_is_authentication_enabled(
+    struct wfp_provider * provider);
+    
 extern void wfp_impl_connected_default(
     void * user_data);
 

test/webfuse/tests/provider/test_client_protocol.cc

@@ -173,7 +173,7 @@ TEST(client_protocol, connect_with_username_authentication)
 
     EXPECT_CALL(provider, OnConnected()).Times(AtMost(1));
     EXPECT_CALL(provider, OnDisconnected()).Times(1);
-    EXPECT_CALL(provider, GetCredentials(_)).WillOnce(Invoke(GetCredentials)).Times(1);
+    EXPECT_CALL(provider, GetCredentials(_)).Times(1).WillOnce(Invoke(GetCredentials));
     
     fixture.Connect();
     if (HasFatalFailure()) { return; }