Added account deletion and adjusted automated tests

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

8 files changed, 253 insertions, 76 deletions

diff --git a/include/gnunet_chat_lib.h b/include/gnunet_chat_lib.h
index 9e3fd04..135e82e 100644
--- a/include/gnunet_chat_lib.h
+++ b/include/gnunet_chat_lib.h
@@ -362,6 +362,21 @@ GNUNET_CHAT_account_create (struct GNUNET_CHAT_Handle *handle,
                             const char* name);
 
 /**
+ * Deletes an existing chat account of a given chat <i>handle</i> under a
+ * unique <i>name</i>.
+ *
+ * If there is no account known to this chat handle under the provided name, the
+ * function will fail and return #GNUNET_NO.
+ *
+ * @param[in,out] handle Chat handle
+ * @param[in] name Account name
+ * @return #GNUNET_OK on success, #GNUNET_NO on failure and otherwise #GNUNET_SYSERR
+ */
+int
+GNUNET_CHAT_account_delete(struct GNUNET_CHAT_Handle *handle,
+                           const char* name);
+
+/**
  * Iterates through the accounts of a given chat <i>handle</i> with a selected
  * callback and custom closure.
  *
diff --git a/src/gnunet_chat_handle.c b/src/gnunet_chat_handle.c
index d23741b..cbbbcc7 100644
--- a/src/gnunet_chat_handle.c
+++ b/src/gnunet_chat_handle.c
@@ -40,6 +40,8 @@ handle_create_from_config (const struct GNUNET_CONFIGURATION_Handle* cfg,
       on_handle_shutdown, handle
   );
 
+  handle->destruction = NULL;
+
   handle->internal_head = NULL;
   handle->internal_tail = NULL;
 
@@ -85,7 +87,6 @@ handle_create_from_config (const struct GNUNET_CONFIGURATION_Handle* cfg,
   handle->accounts_tail = NULL;
 
   handle->current = NULL;
-  handle->creation_op = NULL;
   handle->monitor = NULL;
 
   handle->lobbies_head = NULL;
@@ -154,25 +155,36 @@ handle_destroy (struct GNUNET_CHAT_Handle *handle)
   if (handle->shutdown_hook)
     GNUNET_SCHEDULER_cancel(handle->shutdown_hook);
 
+  if (handle->destruction)
+    GNUNET_SCHEDULER_cancel(handle->destruction);
+
   if (handle->monitor)
     GNUNET_NAMESTORE_zone_monitor_stop(handle->monitor);
 
-  if (handle->creation_op)
-    GNUNET_IDENTITY_cancel(handle->creation_op);
-
   if (handle->current)
     handle_disconnect(handle);
 
   if (handle->namestore)
     GNUNET_NAMESTORE_disconnect(handle->namestore);
 
+  struct GNUNET_CHAT_InternalAccounts *accounts;
+  accounts = handle->accounts_head;
+
+  while (accounts)
+  {
+    if (accounts->op)
+      GNUNET_IDENTITY_cancel(accounts->op);
+
+    accounts->op = NULL;
+    accounts = accounts->next;
+  }
+
   if (handle->identity)
     GNUNET_IDENTITY_disconnect(handle->identity);
 
   if (handle->arm)
     GNUNET_ARM_disconnect(handle->arm);
 
-  struct GNUNET_CHAT_InternalAccounts *accounts;
   while (handle->accounts_head)
   {
     accounts = handle->accounts_head;
diff --git a/src/gnunet_chat_handle.h b/src/gnunet_chat_handle.h
index 5702206..2cc6349 100644
--- a/src/gnunet_chat_handle.h
+++ b/src/gnunet_chat_handle.h
@@ -56,6 +56,10 @@ struct GNUNET_CHAT_InternalMessages
 struct GNUNET_CHAT_InternalAccounts
 {
   struct GNUNET_CHAT_Account *account;
+
+  struct GNUNET_CHAT_Handle *handle;
+  struct GNUNET_IDENTITY_Operation *op;
+
   struct GNUNET_CHAT_InternalAccounts *next;
   struct GNUNET_CHAT_InternalAccounts *prev;
 };
@@ -82,6 +86,7 @@ struct GNUNET_CHAT_Handle
 {
   const struct GNUNET_CONFIGURATION_Handle* cfg;
   struct GNUNET_SCHEDULER_Task *shutdown_hook;
+  struct GNUNET_SCHEDULER_Task *destruction;
 
   struct GNUNET_CHAT_InternalMessages *internal_head;
   struct GNUNET_CHAT_InternalMessages *internal_tail;
@@ -95,7 +100,6 @@ struct GNUNET_CHAT_Handle
   struct GNUNET_CHAT_InternalAccounts *accounts_tail;
 
   const struct GNUNET_CHAT_Account *current;
-  struct GNUNET_IDENTITY_Operation *creation_op;
   struct GNUNET_NAMESTORE_ZoneMonitor *monitor;
 
   struct GNUNET_CHAT_InternalLobbies *lobbies_head;
diff --git a/src/gnunet_chat_handle_intern.c b/src/gnunet_chat_handle_intern.c
index cf8a3b3..63758a8 100644
--- a/src/gnunet_chat_handle_intern.c
+++ b/src/gnunet_chat_handle_intern.c
@@ -224,6 +224,9 @@ on_handle_gnunet_identity(void *cls,
 {
   struct GNUNET_CHAT_Handle* handle = cls;
 
+  if (!name)
+    return;
+
   if (!ego)
     goto send_refresh;
 
@@ -248,6 +251,8 @@ on_handle_gnunet_identity(void *cls,
           handle->accounts_tail,
           accounts
       );
+
+      GNUNET_free(accounts);
     }
 
     goto send_refresh;
@@ -267,6 +272,9 @@ skip_account:
   accounts = GNUNET_new(struct GNUNET_CHAT_InternalAccounts);
   accounts->account = account_create_from_ego(ego, name);
 
+  accounts->handle = handle;
+  accounts->op = NULL;
+
   if (handle->directory)
     account_update_directory(accounts->account, handle->directory);
 
diff --git a/src/gnunet_chat_lib.c b/src/gnunet_chat_lib.c
index 72db7cd..6739d15 100644
--- a/src/gnunet_chat_lib.c
+++ b/src/gnunet_chat_lib.c
@@ -67,10 +67,12 @@ GNUNET_CHAT_stop (struct GNUNET_CHAT_Handle *handle)
 {
   GNUNET_CHAT_VERSION_ASSERT();
 
-  if (!handle)
+  if ((!handle) || (handle->destruction))
     return;
 
-  handle_destroy(handle);
+  handle->destruction = GNUNET_SCHEDULER_add_now(
+      task_handle_destruction, handle
+  );
 }
 
 
@@ -93,23 +95,76 @@ GNUNET_CHAT_account_create (struct GNUNET_CHAT_Handle *handle,
         (0 == strcmp(accounts->account->name, name)))
       return GNUNET_NO;
 
-skip_account:
+  skip_account:
     accounts = accounts->next;
   }
 
-  if (handle->creation_op)
-    GNUNET_IDENTITY_cancel(handle->creation_op);
+  accounts = GNUNET_new(struct GNUNET_CHAT_InternalAccounts);
+  accounts->account = NULL;
+  accounts->handle = handle;
 
-  handle->creation_op = GNUNET_IDENTITY_create(
+  accounts->op = GNUNET_IDENTITY_create(
       handle->identity,
       name,
       NULL,
       GNUNET_IDENTITY_TYPE_ECDSA,
       cb_account_creation,
-      handle
+      accounts
+  );
+
+  if (!(accounts->op))
+  {
+    GNUNET_free(accounts);
+    return GNUNET_SYSERR;
+  }
+
+  GNUNET_CONTAINER_DLL_insert_tail(
+      handle->accounts_head,
+      handle->accounts_tail,
+      accounts
+  );
+
+  return GNUNET_OK;
+}
+
+
+int
+GNUNET_CHAT_account_delete(struct GNUNET_CHAT_Handle *handle,
+                           const char* name)
+{
+  GNUNET_CHAT_VERSION_ASSERT();
+
+  if ((!handle) || (!name))
+    return GNUNET_SYSERR;
+
+  struct GNUNET_CHAT_InternalAccounts *accounts = handle->accounts_head;
+  while (accounts)
+  {
+    if (!(accounts->account))
+      goto skip_account;
+
+    if ((accounts->account->name) &&
+      (0 == strcmp(accounts->account->name, name)))
+      break;
+
+  skip_account:
+    accounts = accounts->next;
+  }
+
+  if (!accounts)
+    return GNUNET_NO;
+
+  if (accounts->op)
+    GNUNET_IDENTITY_cancel(accounts->op);
+
+  accounts->op = GNUNET_IDENTITY_delete(
+      handle->identity,
+      name,
+      cb_account_deletion,
+      accounts
   );
 
-  return (handle->creation_op? GNUNET_OK : GNUNET_SYSERR);
+  return (accounts->op? GNUNET_OK : GNUNET_SYSERR);
 }
 
 
@@ -129,13 +184,14 @@ GNUNET_CHAT_iterate_accounts (const struct GNUNET_CHAT_Handle *handle,
   while (accounts)
   {
     if (!(accounts->account))
-      return GNUNET_SYSERR;
+      goto skip_account;
 
     result++;
 
     if ((callback) && (GNUNET_YES != callback(cls, handle, accounts->account)))
       break;
 
+  skip_account:
     accounts = accounts->next;
   }
 
diff --git a/src/gnunet_chat_lib_intern.c b/src/gnunet_chat_lib_intern.c
index 444f3c0..a430fe5 100644
--- a/src/gnunet_chat_lib_intern.c
+++ b/src/gnunet_chat_lib_intern.c
@@ -25,15 +25,36 @@
 #define GNUNET_UNUSED __attribute__ ((unused))
 
 void
+task_handle_destruction (void *cls)
+{
+  GNUNET_assert(cls);
+
+  struct GNUNET_CHAT_Handle *handle = (struct GNUNET_CHAT_Handle*) cls;
+
+  handle->destruction = NULL;
+  handle_destroy(handle);
+}
+
+void
 cb_account_creation (void *cls,
                      const struct GNUNET_IDENTITY_PrivateKey *key,
                      const char *emsg)
 {
   GNUNET_assert(cls);
 
-  struct GNUNET_CHAT_Handle *handle = (struct GNUNET_CHAT_Handle*) cls;
+  struct GNUNET_CHAT_InternalAccounts *accounts = (
+      (struct GNUNET_CHAT_InternalAccounts*) cls
+  );
 
-  handle->creation_op = NULL;
+  struct GNUNET_CHAT_Handle *handle = accounts->handle;
+
+  GNUNET_CONTAINER_DLL_remove(
+      handle->accounts_head,
+      handle->accounts_tail,
+      accounts
+  );
+
+  GNUNET_free(accounts);
 
   if (emsg)
     handle_send_internal_message(handle, NULL, GNUNET_CHAT_FLAG_WARNING, emsg);
@@ -42,6 +63,35 @@ cb_account_creation (void *cls,
 }
 
 void
+cb_account_deletion (void *cls,
+                     const char *emsg)
+{
+  GNUNET_assert(cls);
+
+  struct GNUNET_CHAT_InternalAccounts *accounts = (
+      (struct GNUNET_CHAT_InternalAccounts*) cls
+  );
+
+  struct GNUNET_CHAT_Handle *handle = accounts->handle;
+
+  if (emsg)
+  {
+    handle_send_internal_message(handle, NULL, GNUNET_CHAT_FLAG_WARNING, emsg);
+    return;
+  }
+
+  GNUNET_CONTAINER_DLL_remove(
+      handle->accounts_head,
+      handle->accounts_tail,
+      accounts
+  );
+
+  GNUNET_free(accounts);
+
+  handle_send_internal_message(handle, NULL, GNUNET_CHAT_FLAG_REFRESH, NULL);
+}
+
+void
 cb_lobby_lookup (void *cls,
                  uint32_t count,
                  const struct GNUNET_GNSRECORD_Data *data)
diff --git a/tests/test_gnunet_chat.h b/tests/test_gnunet_chat.h
index 80803d3..2172611 100644
--- a/tests/test_gnunet_chat.h
+++ b/tests/test_gnunet_chat.h
@@ -1,6 +1,6 @@
 /*
    This file is part of GNUnet.
-   Copyright (C) 2021 GNUnet e.V.
+   Copyright (C) 2021--2022 GNUnet e.V.
 
    GNUnet is free software: you can redistribute it and/or modify it
    under the terms of the GNU Affero General Public License as published
@@ -32,6 +32,8 @@
 
 #include <gnunet/gnunet_chat_lib.h>
 
+#define GNUNET_CHAT_TEST_ACCOUNT "check"
+
 #define CREATE_GNUNET_TEST(test_name, test_call)                 \
 void                                                             \
 task_##test_call (__attribute__ ((unused)) void *cls,            \
diff --git a/tests/test_gnunet_chat_handle.c b/tests/test_gnunet_chat_handle.c
index efa2ba9..f8a7b60 100644
--- a/tests/test_gnunet_chat_handle.c
+++ b/tests/test_gnunet_chat_handle.c
@@ -1,6 +1,6 @@
 /*
    This file is part of GNUnet.
-   Copyright (C) 2021 GNUnet e.V.
+   Copyright (C) 2021--2022 GNUnet e.V.
 
    GNUnet is free software: you can redistribute it and/or modify it
    under the terms of the GNU Affero General Public License as published
@@ -37,104 +37,134 @@ call_gnunet_chat_handle_init(const struct GNUNET_CONFIGURATION_Handle *cfg)
 
 CREATE_GNUNET_TEST(test_gnunet_chat_handle_init, call_gnunet_chat_handle_init)
 
-struct GNUNET_CHAT_Handle *login_handle;
+struct GNUNET_CHAT_Handle *accounts_handle;
+int accounts_stage;
 
 int
-on_gnunet_chat_handle_login_msg(void *cls,
-                                struct GNUNET_CHAT_Context *context,
-                                const struct GNUNET_CHAT_Message *message)
+on_gnunet_chat_handle_accounts_it(__attribute__ ((unused)) void *cls,
+                                  __attribute__ ((unused)) const struct GNUNET_CHAT_Handle *handle,
+                                  struct GNUNET_CHAT_Account *account)
+{
+  const char *name = GNUNET_CHAT_account_get_name(account);
+
+  ck_assert_ptr_ne(name, NULL);
+
+  if (0 == strcmp(name, GNUNET_CHAT_TEST_ACCOUNT))
+    accounts_stage |= 2;
+
+  return GNUNET_YES;
+}
+
+int
+on_gnunet_chat_handle_accounts_msg(void *cls,
+                                   struct GNUNET_CHAT_Context *context,
+                                   const struct GNUNET_CHAT_Message *message)
 {
   enum GNUNET_CHAT_MessageKind kind = GNUNET_CHAT_message_get_kind(message);
 
-  ck_assert(kind == GNUNET_CHAT_KIND_LOGIN);
+  ck_assert(kind == GNUNET_CHAT_KIND_REFRESH);
   ck_assert_ptr_eq(cls, NULL);
   ck_assert_ptr_eq(context, NULL);
 
-  GNUNET_CHAT_stop(login_handle);
+  GNUNET_CHAT_iterate_accounts(
+      accounts_handle,
+      on_gnunet_chat_handle_accounts_it,
+      NULL
+  );
+
+  if (2 & accounts_stage)
+  {
+    if (3 == accounts_stage)
+      ck_assert_int_eq(GNUNET_CHAT_account_delete(
+          accounts_handle,
+          GNUNET_CHAT_TEST_ACCOUNT
+      ), GNUNET_OK);
+
+    accounts_stage = 4;
+  }
+  else if (4 == accounts_stage)
+    GNUNET_CHAT_stop(accounts_handle);
+  else if (0 == accounts_stage)
+  {
+    ck_assert_int_eq(GNUNET_CHAT_account_create(
+        accounts_handle,
+        GNUNET_CHAT_TEST_ACCOUNT
+    ), GNUNET_OK);
+
+    accounts_stage = 1;
+  }
+
   return GNUNET_YES;
 }
 
 void
-call_gnunet_chat_handle_login(const struct GNUNET_CONFIGURATION_Handle *cfg)
+call_gnunet_chat_handle_accounts(const struct GNUNET_CONFIGURATION_Handle *cfg)
 {
-  login_handle = GNUNET_CHAT_start(cfg, on_gnunet_chat_handle_login_msg, NULL);
-  ck_assert_ptr_ne(login_handle, NULL);
+  accounts_handle = GNUNET_CHAT_start(cfg, on_gnunet_chat_handle_accounts_msg, NULL);
+  accounts_stage = 0;
+
+  ck_assert_ptr_ne(accounts_handle, NULL);
 }
 
-CREATE_GNUNET_TEST(test_gnunet_chat_handle_login, call_gnunet_chat_handle_login)
+CREATE_GNUNET_TEST(test_gnunet_chat_handle_accounts, call_gnunet_chat_handle_accounts)
 
-struct GNUNET_CHAT_Handle *access_handle;
-int access_logins;
+struct GNUNET_CHAT_Handle *connection_handle;
 
 int
-on_gnunet_chat_handle_access_msg(void *cls,
-                                struct GNUNET_CHAT_Context *context,
-                                const struct GNUNET_CHAT_Message *message)
+on_gnunet_chat_handle_connection_msg(void *cls,
+                                     struct GNUNET_CHAT_Context *context,
+                                     const struct GNUNET_CHAT_Message *message)
 {
   enum GNUNET_CHAT_MessageKind kind = GNUNET_CHAT_message_get_kind(message);
 
+  ck_assert(kind == GNUNET_CHAT_KIND_LOGIN);
   ck_assert_ptr_eq(cls, NULL);
   ck_assert_ptr_eq(context, NULL);
 
-  const char *key;
-  const char *name;
-  int result;
-
-  if (access_logins == 0)
-  {
-    ck_assert(kind == GNUNET_CHAT_KIND_LOGIN);
-
-    key = GNUNET_CHAT_get_key(access_handle);
-    ck_assert_ptr_eq(key, NULL);
-
-    result = GNUNET_CHAT_update(access_handle);
-    ck_assert_int_eq(result, GNUNET_OK);
-
-    name = GNUNET_CHAT_get_name(access_handle);
-    ck_assert_str_eq(name, "Access");
-  }
-  else if (access_logins == 1)
-  {
-    ck_assert(kind == GNUNET_CHAT_KIND_LOGIN);
+  GNUNET_CHAT_stop(connection_handle);
+  return GNUNET_YES;
+}
 
-    key = GNUNET_CHAT_get_key(access_handle);
-    ck_assert_ptr_ne(key, NULL);
+void
+call_gnunet_chat_handle_connection(const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  connection_handle = GNUNET_CHAT_start(cfg, on_gnunet_chat_handle_connection_msg, NULL);
+  ck_assert_ptr_ne(connection_handle, NULL);
+}
 
-    result = GNUNET_CHAT_set_name(access_handle, "Bccess");
-    ck_assert_int_eq(result, GNUNET_YES);
-  }
-  else
-  {
-    ck_assert(kind == GNUNET_CHAT_KIND_CONTACT);
+CREATE_GNUNET_TEST(test_gnunet_chat_handle_connection, call_gnunet_chat_handle_connection)
 
-    ck_assert_int_eq(access_logins, 2);
+struct GNUNET_CHAT_Handle *update_handle;
 
-    name = GNUNET_CHAT_get_name(access_handle);
-    ck_assert_str_eq(name, "Bccess");
+int
+on_gnunet_chat_handle_update_msg(void *cls,
+                                 struct GNUNET_CHAT_Context *context,
+                                 const struct GNUNET_CHAT_Message *message)
+{
+  enum GNUNET_CHAT_MessageKind kind = GNUNET_CHAT_message_get_kind(message);
 
-    GNUNET_CHAT_stop(access_handle);
-  }
+  ck_assert_ptr_eq(cls, NULL);
+  ck_assert_ptr_eq(context, NULL);
 
-  access_logins++;
+  GNUNET_CHAT_stop(update_handle);
   return GNUNET_YES;
 }
 
 void
-call_gnunet_chat_handle_access(const struct GNUNET_CONFIGURATION_Handle *cfg)
+call_gnunet_chat_handle_update(const struct GNUNET_CONFIGURATION_Handle *cfg)
 {
-  access_logins = 0;
-
-  access_handle = GNUNET_CHAT_start(cfg, on_gnunet_chat_handle_access_msg, NULL);
-  ck_assert_ptr_ne(access_handle, NULL);
+  update_handle = GNUNET_CHAT_start(cfg, on_gnunet_chat_handle_update_msg, NULL);
+  ck_assert_ptr_ne(update_handle, NULL);
 }
 
-CREATE_GNUNET_TEST(test_gnunet_chat_handle_access, call_gnunet_chat_handle_access)
+CREATE_GNUNET_TEST(test_gnunet_chat_handle_update, call_gnunet_chat_handle_update)
 
 
 START_SUITE(handle_suite, "Handle")
 ADD_TEST_TO_SUITE(test_gnunet_chat_handle_init, "Start/Stop")
-ADD_TEST_TO_SUITE(test_gnunet_chat_handle_login, "Login")
-ADD_TEST_TO_SUITE(test_gnunet_chat_handle_access, "Get/Set")
+ADD_TEST_TO_SUITE(test_gnunet_chat_handle_accounts, "Accounts")
+ADD_TEST_TO_SUITE(test_gnunet_chat_handle_connection, "Connect/Disconnect")
+ADD_TEST_TO_SUITE(test_gnunet_chat_handle_update, "Update")
 END_SUITE
 
 MAIN_SUITE(handle_suite, CK_NORMAL)