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core: Move ssb.swapWithServerIdentity() to C.
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Cory McWilliams
2025-12-09 20:21:02 -05:00
parent b4c014fd27
commit 33392e7c55
5 changed files with 132 additions and 127 deletions
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73
src/api.js.c
View File

@@ -1158,6 +1158,77 @@ static JSValue _tf_ssb_delete_user(JSContext* context, JSValueConst this_val, in
return result;
}
typedef struct _swap_with_server_identity_t
{
char server_id[k_id_base64_len];
char user_id[k_id_base64_len];
JSValue promise[2];
char* error;
char user[];
} swap_with_server_identity_t;
static void _tf_ssb_swap_with_server_identity_work(tf_ssb_t* ssb, void* user_data)
{
swap_with_server_identity_t* work = user_data;
sqlite3* db = tf_ssb_acquire_db_writer(ssb);
work->error = tf_ssb_db_swap_with_server_identity(db, work->user, work->user_id, work->server_id);
tf_ssb_release_db_writer(ssb, db);
}
static void _tf_ssb_swap_with_server_identity_after_work(tf_ssb_t* ssb, int status, void* user_data)
{
swap_with_server_identity_t* work = user_data;
JSContext* context = tf_ssb_get_context(ssb);
JSValue error = JS_UNDEFINED;
if (work->error)
{
JSValue arg = JS_ThrowInternalError(context, "%s", work->error);
JSValue exception = JS_GetException(context);
error = JS_Call(context, work->promise[1], JS_UNDEFINED, 1, &exception);
tf_free(work->error);
JS_FreeValue(context, exception);
JS_FreeValue(context, arg);
}
else
{
error = JS_Call(context, work->promise[0], JS_UNDEFINED, 0, NULL);
}
tf_util_report_error(context, error);
JS_FreeValue(context, error);
JS_FreeValue(context, work->promise[0]);
JS_FreeValue(context, work->promise[1]);
tf_free(work);
}
static void _tf_ssb_swap_with_server_identity_permission_callback(JSContext* context, bool granted, JSValue value, void* user_data)
{
swap_with_server_identity_t* work = user_data;
tf_task_t* task = tf_task_get(context);
tf_ssb_t* ssb = tf_task_get_ssb(task);
tf_ssb_run_work(ssb, _tf_ssb_swap_with_server_identity_work, _tf_ssb_swap_with_server_identity_after_work, work);
}
static JSValue _tf_ssb_swap_with_server_identity(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv, int magic, JSValue* data)
{
tf_task_t* task = tf_task_get(context);
tf_ssb_t* ssb = tf_task_get_ssb(task);
const char* user = _tf_ssb_get_process_credentials_session_name(context, data[0]);
size_t user_length = user ? strlen(user) : 0;
const char* id = JS_ToCString(context, argv[0]);
swap_with_server_identity_t* work = tf_malloc(sizeof(swap_with_server_identity_t) + user_length + 1);
*work = (swap_with_server_identity_t) { 0 };
tf_ssb_whoami(ssb, work->server_id, sizeof(work->server_id));
tf_string_set(work->user_id, sizeof(work->user_id), id);
memcpy(work->user, user, user_length + 1);
JSValue result = JS_NewPromiseCapability(context, work->promise);
char description[1024];
snprintf(description, sizeof(description), "Swap identity %s with %s.", work->user_id, work->server_id);
_tf_ssb_permission_test(context, data[0], "delete_user", description, _tf_ssb_swap_with_server_identity_permission_callback, work);
JS_FreeCString(context, id);
tf_free((void*)user);
return result;
}
static JSValue _tf_api_register_imports(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
JSValue imports = argv[0];
@@ -1200,6 +1271,8 @@ static JSValue _tf_api_register_imports(JSContext* context, JSValueConst this_va
JS_SetPropertyStr(context, ssb, "addBlock", JS_NewCFunctionData(context, _tf_ssb_add_block, 1, 0, 1, &process));
JS_SetPropertyStr(context, ssb, "removeBlock", JS_NewCFunctionData(context, _tf_ssb_remove_block, 1, 0, 1, &process));
JS_SetPropertyStr(context, ssb, "getBlocks", JS_NewCFunctionData(context, _tf_ssb_get_blocks, 0, 0, 1, &process));
JS_SetPropertyStr(context, ssb, "swapWithServerIdentity", JS_NewCFunctionData(context, _tf_ssb_swap_with_server_identity, 1, 0, 1, &process));
}
JS_FreeValue(context, administration);
JS_FreeValue(context, permissions);

49
src/ssb.db.c
View File

@@ -2953,3 +2953,52 @@ void tf_ssb_db_get_blocks(sqlite3* db, void (*callback)(const char* id, double t
sqlite3_finalize(statement);
}
}
char* tf_ssb_db_swap_with_server_identity(sqlite3* db, const char* user, const char* user_id, const char* server_id)
{
tf_printf("SWAP user=%s user_id=%s server_id=%s\n", user, user_id, server_id);
char* result = NULL;
char* error = NULL;
if (sqlite3_exec(db, "BEGIN TRANSACTION", NULL, NULL, &error) == SQLITE_OK)
{
sqlite3_stmt* statement = NULL;
if (sqlite3_prepare_v2(db, "UPDATE identities SET user = ? WHERE user = ? AND '@' || public_key = ?", -1, &statement, NULL) == SQLITE_OK)
{
if (sqlite3_bind_text(statement, 1, user, -1, NULL) == SQLITE_OK && sqlite3_bind_text(statement, 2, ":admin", -1, NULL) == SQLITE_OK &&
sqlite3_bind_text(statement, 3, server_id, -1, NULL) == SQLITE_OK && sqlite3_step(statement) == SQLITE_DONE && sqlite3_changes(db) == 1 &&
sqlite3_reset(statement) == SQLITE_OK && sqlite3_bind_text(statement, 1, ":admin", -1, NULL) == SQLITE_OK &&
sqlite3_bind_text(statement, 2, user, -1, NULL) == SQLITE_OK && sqlite3_bind_text(statement, 3, user_id, -1, NULL) == SQLITE_OK &&
sqlite3_step(statement) == SQLITE_DONE && sqlite3_changes(db) == 1)
{
char* commit_error = NULL;
if (sqlite3_exec(db, "COMMIT TRANSACTION", NULL, NULL, &commit_error) != SQLITE_OK)
{
result = commit_error ? tf_strdup(commit_error) : tf_strdup(sqlite3_errmsg(db));
}
if (commit_error)
{
sqlite3_free(commit_error);
}
}
else
{
result = tf_strdup(sqlite3_errmsg(db) ? sqlite3_errmsg(db) : "swap failed");
}
sqlite3_finalize(statement);
}
else
{
result = tf_strdup(sqlite3_errmsg(db));
}
}
else
{
result = error ? tf_strdup(error) : tf_strdup(sqlite3_errmsg(db));
}
if (error)
{
sqlite3_free(error);
}
return result;
}

10
src/ssb.db.h
View File

@@ -647,4 +647,14 @@ bool tf_ssb_db_is_blocked(sqlite3* db, const char* id);
*/
void tf_ssb_db_get_blocks(sqlite3* db, void (*callback)(const char* id, double timestamp, void* user_data), void* user_data);
/**
** Swap a user's identity with the server identity.
** @param db The database.
** @param user The user.
** @param user_id The user identity.
** @param server_id The server identity.
** @return Null on success or an error message on error. Free with tf_free().
*/
char* tf_ssb_db_swap_with_server_identity(sqlite3* db, const char* user, const char* user_id, const char* server_id);
/** @} */

112
src/ssb.js.c
View File

@@ -252,117 +252,6 @@ static JSValue _tf_ssb_deleteIdentity(JSContext* context, JSValueConst this_val,
return result;
}
typedef struct _swap_with_server_identity_t
{
char server_id[k_id_base64_len];
char id[k_id_base64_len];
JSValue promise[2];
char* error;
char user[];
} swap_with_server_identity_t;
static void _tf_ssb_swap_with_server_identity_work(tf_ssb_t* ssb, void* user_data)
{
swap_with_server_identity_t* work = user_data;
sqlite3* db = tf_ssb_acquire_db_writer(ssb);
if (tf_ssb_db_user_has_permission(ssb, db, work->user, "administration"))
{
char* error = NULL;
if (sqlite3_exec(db, "BEGIN TRANSACTION", NULL, NULL, &error) == SQLITE_OK)
{
sqlite3_stmt* statement = NULL;
if (sqlite3_prepare_v2(db, "UPDATE identities SET user = ? WHERE user = ? AND '@' || public_key = ?", -1, &statement, NULL) == SQLITE_OK)
{
if (sqlite3_bind_text(statement, 1, work->user, -1, NULL) == SQLITE_OK && sqlite3_bind_text(statement, 2, ":admin", -1, NULL) == SQLITE_OK &&
sqlite3_bind_text(statement, 3, work->server_id, -1, NULL) == SQLITE_OK && sqlite3_step(statement) == SQLITE_DONE && sqlite3_changes(db) == 1 &&
sqlite3_reset(statement) == SQLITE_OK && sqlite3_bind_text(statement, 1, ":admin", -1, NULL) == SQLITE_OK &&
sqlite3_bind_text(statement, 2, work->user, -1, NULL) == SQLITE_OK && sqlite3_bind_text(statement, 3, work->id, -1, NULL) == SQLITE_OK &&
sqlite3_step(statement) == SQLITE_DONE && sqlite3_changes(db) == 1)
{
char* commit_error = NULL;
if (sqlite3_exec(db, "COMMIT TRANSACTION", NULL, NULL, &commit_error) != SQLITE_OK)
{
work->error = commit_error ? tf_strdup(commit_error) : tf_strdup(sqlite3_errmsg(db));
}
if (commit_error)
{
sqlite3_free(commit_error);
}
}
else
{
work->error = tf_strdup(sqlite3_errmsg(db) ? sqlite3_errmsg(db) : "swap failed");
}
sqlite3_finalize(statement);
}
else
{
work->error = tf_strdup(sqlite3_errmsg(db));
}
}
else
{
work->error = error ? tf_strdup(error) : tf_strdup(sqlite3_errmsg(db));
}
if (error)
{
sqlite3_free(error);
}
}
else
{
work->error = tf_strdup("not administrator");
}
tf_ssb_release_db_writer(ssb, db);
}
static void _tf_ssb_swap_with_server_identity_after_work(tf_ssb_t* ssb, int status, void* user_data)
{
swap_with_server_identity_t* work = user_data;
JSContext* context = tf_ssb_get_context(ssb);
JSValue error = JS_UNDEFINED;
if (work->error)
{
JSValue arg = JS_ThrowInternalError(context, "%s", work->error);
JSValue exception = JS_GetException(context);
error = JS_Call(context, work->promise[1], JS_UNDEFINED, 1, &exception);
tf_free(work->error);
JS_FreeValue(context, exception);
JS_FreeValue(context, arg);
}
else
{
error = JS_Call(context, work->promise[0], JS_UNDEFINED, 0, NULL);
}
tf_util_report_error(context, error);
JS_FreeValue(context, error);
JS_FreeValue(context, work->promise[0]);
JS_FreeValue(context, work->promise[1]);
tf_free(work);
}
static JSValue _tf_ssb_swap_with_server_identity(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
tf_ssb_t* ssb = JS_GetOpaque(this_val, _tf_ssb_classId);
JSValue result = JS_UNDEFINED;
if (ssb)
{
size_t user_length = 0;
const char* user = JS_ToCStringLen(context, &user_length, argv[0]);
const char* id = JS_ToCString(context, argv[1]);
swap_with_server_identity_t* work = tf_malloc(sizeof(swap_with_server_identity_t) + user_length + 1);
*work = (swap_with_server_identity_t) { 0 };
tf_ssb_whoami(ssb, work->server_id, sizeof(work->server_id));
tf_string_set(work->id, sizeof(work->id), id);
memcpy(work->user, user, user_length + 1);
result = JS_NewPromiseCapability(context, work->promise);
tf_ssb_run_work(ssb, _tf_ssb_swap_with_server_identity_work, _tf_ssb_swap_with_server_identity_after_work, work);
JS_FreeCString(context, user);
JS_FreeCString(context, id);
}
return result;
}
typedef struct _get_private_key_t
{
JSContext* context;
@@ -2196,7 +2085,6 @@ void tf_ssb_register(JSContext* context, tf_ssb_t* ssb)
JS_SetPropertyStr(context, object, "createIdentity", JS_NewCFunction(context, _tf_ssb_createIdentity, "createIdentity", 1));
JS_SetPropertyStr(context, object, "addIdentity", JS_NewCFunction(context, _tf_ssb_addIdentity, "addIdentity", 2));
JS_SetPropertyStr(context, object, "deleteIdentity", JS_NewCFunction(context, _tf_ssb_deleteIdentity, "deleteIdentity", 2));
JS_SetPropertyStr(context, object, "swapWithServerIdentity", JS_NewCFunction(context, _tf_ssb_swap_with_server_identity, "swapWithServerIdentity", 2));
JS_SetPropertyStr(context, object, "getPrivateKey", JS_NewCFunction(context, _tf_ssb_getPrivateKey, "getPrivateKey", 2));
JS_SetPropertyStr(context, object, "privateMessageEncrypt", JS_NewCFunction(context, _tf_ssb_private_message_encrypt, "privateMessageEncrypt", 4));
JS_SetPropertyStr(context, object, "privateMessageDecrypt", JS_NewCFunction(context, _tf_ssb_private_message_decrypt, "privateMessageDecrypt", 3));