222 lines
9.0 KiB
GDScript
222 lines
9.0 KiB
GDScript
extends Node
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func _ready():
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print("=== SANDBOX PROBE 5b: Corrected Sandboxing Mechanisms (Godot 4.6.2) ===")
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probe_script_loading()
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probe_os_apis()
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probe_file_access()
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probe_network()
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probe_classdb()
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probe_expression_engine()
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probe_engine_singletons()
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probe_worker_threads()
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probe_project_settings()
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probe_script_restrictions()
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probe_allowlist()
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print("=== SANDBOX PROBE 5b END ===")
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get_tree().quit()
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func probe_script_loading():
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print("--- Script loading ---")
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var gd = GDScript.new()
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gd.source_code = "extends RefCounted\nfunc hello():\n\treturn 42\n"
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var err = gd.reload()
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print("GDScript.reload() from source_code err=", err)
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if err == OK:
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var inst = gd.new()
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print(" instantiated, hello()=", inst.call("hello"))
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var res = load("res://test_script.gd")
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print("load('res://test_script.gd') = ", res)
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if res:
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print(" get_source_code() available: ", res.has_method("get_source_code"))
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print(" GDScript instance has 'get_ast': ", gd.has_method("get_ast"))
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print(" GDScript instance has 'get_parser': ", gd.has_method("get_parser"))
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print(" GDScript instance has 'get_script_method_list': ", gd.has_method("get_script_method_list"))
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print(" GDScript instance has 'get_script_property_list': ", gd.has_method("get_script_property_list"))
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print(" GDScript instance has 'get_instance_base_type': ", gd.has_method("get_instance_base_type"))
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# Can we get the list of static methods on GDScript class?
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var gd_methods = GDScript.get_method_list()
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var gd_method_names = []
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for m in gd_methods:
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gd_method_names.append(String(m.name))
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print(" GDScript static methods: ", gd_method_names)
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func probe_os_apis():
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print("--- OS APIs ---")
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var out = []
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var exit_code = OS.execute("echo", ["hello"], out)
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print("OS.execute('echo') exit=", exit_code, " out=", out)
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print("OS.get_environment('HOME') = ", OS.get_environment("HOME"))
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print("OS has 'create_process': ", OS.has_method("create_process"))
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print("OS.get_cmdline_args() = ", OS.get_cmdline_args())
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print("OS.get_user_data_dir() = ", OS.get_user_data_dir())
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print("OS.get_executable_path() = ", OS.get_executable_path())
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func probe_file_access():
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print("--- File access ---")
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var f = FileAccess.open("/etc/hostname", FileAccess.READ)
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print("FileAccess.open('/etc/hostname') = ", f)
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if f:
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print(" content: ", f.get_as_text())
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f.close()
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var w = FileAccess.open("/tmp/godot_probe_write.txt", FileAccess.WRITE)
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print("FileAccess.open('/tmp/...', WRITE) = ", w)
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if w:
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w.store_string("probe")
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w.close()
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print(" wrote to /tmp OK")
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var dir = DirAccess.open("/")
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print("DirAccess.open('/') = ", dir)
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if dir:
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var names = dir.get_files()
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print(" root files count: ", names.size())
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var res_dir = DirAccess.open("res://")
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print("DirAccess.open('res://') = ", res_dir)
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var user_dir = DirAccess.open("user://")
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print("DirAccess.open('user://') = ", user_dir)
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func probe_network():
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print("--- Network ---")
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var tcp = TCPServer.new()
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var bind_err = tcp.listen(0)
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print("TCPServer.listen(0) err=", bind_err)
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var http = HTTPClient.new()
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print("HTTPClient instantiated: ", http != null)
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var http_req = HTTPRequest.new()
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print("HTTPRequest instantiated: ", http_req != null)
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var udp = PacketPeerUDP.new()
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print("PacketPeerUDP instantiated: ", udp != null)
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var ws = WebSocketPeer.new()
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print("WebSocketPeer instantiated: ", ws != null)
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func probe_classdb():
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print("--- ClassDB ---")
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print("ClassDB.class_exists('OS'): ", ClassDB.class_exists("OS"))
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print("ClassDB.class_exists('FileAccess'): ", ClassDB.class_exists("FileAccess"))
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print("ClassDB.class_exists('TCPServer'): ", ClassDB.class_exists("TCPServer"))
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print("ClassDB.class_exists('HTTPClient'): ", ClassDB.class_exists("HTTPClient"))
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var class_list = ClassDB.get_class_list()
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print("ClassDB.get_class_list() count: ", class_list.size())
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var os_methods = ClassDB.class_get_method_list("OS")
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print("OS method count: ", os_methods.size())
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var inst = ClassDB.instantiate("Node")
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print("ClassDB.instantiate('Node') = ", inst)
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# Can we enumerate ClassDB methods to see what's available?
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var classdb_methods = ClassDB.get_method_list()
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var classdb_method_names = []
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for m in classdb_methods:
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classdb_method_names.append(String(m.name))
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print(" ClassDB methods: ", classdb_method_names)
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func probe_expression_engine():
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print("--- Expression engine ---")
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var expr = Expression.new()
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var err = expr.parse("1 + 2")
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print("Expression.parse('1 + 2') err=", err)
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if err == OK:
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var result = expr.execute()
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print(" Expression.execute() = ", result)
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var expr2 = Expression.new()
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err = expr2.parse("OS.get_environment('HOME')")
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print("Expression.parse('OS.get_environment') err=", err)
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if err == OK:
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var result2 = expr2.execute()
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print(" Expression.execute() = ", result2)
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var expr3 = Expression.new()
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err = expr3.parse("get_environment('HOME')", ["OS"])
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print("Expression.parse with base_instance err=", err)
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if err == OK:
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var result3 = expr3.execute([], OS)
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print(" Expression.execute with OS base = ", result3)
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var expr4 = Expression.new()
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err = expr4.parse("FileAccess.open('/etc/hostname', 1)")
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print("Expression.parse('FileAccess.open') err=", err)
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if err == OK:
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var result4 = expr4.execute()
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print(" Expression.execute() = ", result4)
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var expr5 = Expression.new()
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err = expr5.parse("get_tree().quit()")
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print("Expression.parse('get_tree().quit()') err=", err)
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if err == OK:
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var result5 = expr5.execute()
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print(" Expression.execute() = ", result5)
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func probe_engine_singletons():
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print("--- Engine singletons ---")
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print("Engine has 'remove_singleton': ", Engine.has_method("remove_singleton"))
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print("Engine has 'add_singleton': ", Engine.has_method("add_singleton"))
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print("Engine.get_main_loop() = ", Engine.get_main_loop())
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# Can we enumerate singletons via Engine instance methods?
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var engine_methods = Engine.get_method_list()
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var engine_method_names = []
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for m in engine_methods:
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engine_method_names.append(String(m.name))
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print(" Engine instance methods: ", engine_method_names)
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func probe_worker_threads():
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print("--- Worker threads ---")
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var thread = Thread.new()
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print(" Thread.new() = ", thread)
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print(" WorkerThreadPool has 'add_task': ", WorkerThreadPool.has_method("add_task"))
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func probe_project_settings():
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print("--- Project settings ---")
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var settings = ProjectSettings.get_property_list()
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var relevant = []
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for s in settings:
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var name = String(s.name)
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if "sandbox" in name.to_lower() or "restrict" in name.to_lower() or "security" in name.to_lower():
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relevant.append(name)
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print(" Sandbox/security project settings: ", relevant)
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print(" ProjectSettings has 'application/run/disable_os': ", ProjectSettings.has_setting("application/run/disable_os"))
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print(" ProjectSettings has 'application/run/disable_file_access': ", ProjectSettings.has_setting("application/run/disable_file_access"))
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print(" ProjectSettings has 'application/run/disable_network': ", ProjectSettings.has_setting("application/run/disable_network"))
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print(" ProjectSettings has 'set_setting': ", ProjectSettings.has_method("set_setting"))
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print(" ProjectSettings has 'save': ", ProjectSettings.has_method("save"))
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func probe_script_restrictions():
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print("--- Script restrictions ---")
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var gd = GDScript.new()
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gd.source_code = "extends RefCounted\nfunc evil():\n\treturn OS.get_environment('HOME')\n"
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var err = gd.reload()
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print(" GDScript with OS access reload err=", err)
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if err == OK:
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var inst = gd.new()
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print(" evil() result: ", inst.call("evil"))
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print(" GDScript has method to restrict globals: ", gd.has_method("set_global_scope"))
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print(" GDScript has method 'get_global_scope': ", gd.has_method("get_global_scope"))
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# Can we check what identifiers a script references via the analyzer?
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print(" GDScript has 'get_script_constant_map': ", gd.has_method("get_script_constant_map"))
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# Can we get the list of member variables?
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print(" GDScript has 'get_script_property_list': ", gd.has_method("get_script_property_list"))
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func probe_allowlist():
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print("--- Allowlist / static analysis ---")
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var dangerous_patterns = [
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"OS.execute", "OS.create_process", "OS.get_environment",
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"FileAccess.open", "DirAccess.open", "TCPServer", "HTTPClient",
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"load(", "preload(", "ClassDB", "Engine.get_main_loop",
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"get_tree().quit", "ProjectSettings"
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]
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var test_script = """extends Node
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func _ready():
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var f = FileAccess.open("/etc/passwd", FileAccess.READ)
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OS.execute("rm", ["-rf", "/"])
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"""
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print(" Test script contains dangerous patterns:")
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for p in dangerous_patterns:
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if p in test_script:
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print(" DETECTED: ", p)
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# Can we use a tokenizer/lexer to parse GDScript?
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# GDScriptLanguage is NOT exposed to GDScript (confirmed by parse error)
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print(" GDScriptLanguage NOT exposed to GDScript (parse error confirmed)")
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# Can we use the Expression engine to validate syntax?
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var expr = Expression.new()
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var err = expr.parse("var x = 1 + 2")
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print(" Expression.parse('var x = 1 + 2') err=", err)
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err = expr.parse("OS.execute('rm', ['-rf', '/'])")
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print(" Expression.parse('OS.execute...') err=", err)
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if err == OK:
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var result = expr.execute()
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print(" Expression.execute() = ", result)
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