Allow system certs file to be used by Editor.

Note, it will only used by the Editor, not when running the game.
This allows package maintainer to compile Godot to use system installed
certificates when accessing the AssetLib.

SConstruct

@@ -169,6 +169,7 @@ opts.Add(BoolVariable('progress', "Show a progress indicator during compilation"
 opts.Add(BoolVariable('dev', "If yes, alias for verbose=yes warnings=all", False))
 opts.Add(EnumVariable('macports_clang', "Build using Clang from MacPorts", 'no', ('no', '5.0', 'devel')))
 opts.Add(BoolVariable('no_editor_splash', "Don't use the custom splash screen for the editor", False))
+opts.Add('system_certs_path', "Use this path as SSL certificates default for editor (for package maintainers)", '')
 
 # Thirdparty libraries
 opts.Add(BoolVariable('builtin_bullet', "Use the built-in Bullet library", True))

core/SCsub

@@ -94,7 +94,7 @@ if 'builtin_zstd' in env and env['builtin_zstd']:
 env.add_source_files(env.core_sources, "*.cpp")
 
 # Certificates
-env.Depends("#core/io/certs_compressed.gen.h", ["#thirdparty/certs/ca-certificates.crt", env.Value(env['builtin_certs'])])
+env.Depends("#core/io/certs_compressed.gen.h", ["#thirdparty/certs/ca-certificates.crt", env.Value(env['builtin_certs']), env.Value(env['system_certs_path'])])
 env.CommandNoCache("#core/io/certs_compressed.gen.h", "#thirdparty/certs/ca-certificates.crt", run_in_subprocess(core_builders.make_certs_header))
 
 # Make binders

core/core_builders.py

@@ -21,6 +21,10 @@ def make_certs_header(target, source, env):
     g.write("/* THIS FILE IS GENERATED DO NOT EDIT */\n")
     g.write("#ifndef _CERTS_RAW_H\n")
     g.write("#define _CERTS_RAW_H\n")
+
+    # System certs path. Editor will use them if defined. (for package maintainers)
+    path = env['system_certs_path']
+    g.write("#define _SYSTEM_CERTS_PATH \"%s\"\n" % str(path))
     if env['builtin_certs']:
         # Defined here and not in env so changing it does not trigger a full rebuild.
         g.write("#define BUILTIN_CERTS_ENABLED\n")

core/io/stream_peer_ssl.cpp

@@ -44,13 +44,20 @@ StreamPeerSSL *StreamPeerSSL::create() {
 
 StreamPeerSSL::LoadCertsFromMemory StreamPeerSSL::load_certs_func = NULL;
 bool StreamPeerSSL::available = false;
-bool StreamPeerSSL::initialize_certs = true;
 
 void StreamPeerSSL::load_certs_from_memory(const PoolByteArray &p_memory) {
 	if (load_certs_func)
 		load_certs_func(p_memory);
 }
 
+void StreamPeerSSL::load_certs_from_file(String p_path) {
+	if (p_path != "") {
+		PoolByteArray certs = get_cert_file_as_array(p_path);
+		if (certs.size() > 0)
+			load_certs_func(certs);
+	}
+}
+
 bool StreamPeerSSL::is_available() {
 	return available;
 }
@@ -63,6 +70,25 @@ bool StreamPeerSSL::is_blocking_handshake_enabled() const {
 	return blocking_handshake;
 }
 
+PoolByteArray StreamPeerSSL::get_cert_file_as_array(String p_path) {
+
+	PoolByteArray out;
+	FileAccess *f = FileAccess::open(p_path, FileAccess::READ);
+	if (f) {
+		int flen = f->get_len();
+		out.resize(flen + 1);
+		PoolByteArray::Write w = out.write();
+		f->get_buffer(w.ptr(), flen);
+		w[flen] = 0; // Make sure it ends with string terminator
+		memdelete(f);
+#ifdef DEBUG_ENABLED
+		print_verbose(vformat("Loaded certs from '%s'.", p_path));
+#endif
+	}
+
+	return out;
+}
+
 PoolByteArray StreamPeerSSL::get_project_cert_array() {
 
 	PoolByteArray out;
@@ -71,18 +97,7 @@ PoolByteArray StreamPeerSSL::get_project_cert_array() {
 
 	if (certs_path != "") {
 		// Use certs defined in project settings.
-		FileAccess *f = FileAccess::open(certs_path, FileAccess::READ);
-		if (f) {
-			int flen = f->get_len();
-			out.resize(flen + 1);
-			PoolByteArray::Write w = out.write();
-			f->get_buffer(w.ptr(), flen);
-			w[flen] = 0; // Make sure it ends with string terminator
-			memdelete(f);
-#ifdef DEBUG_ENABLED
-			print_verbose(vformat("Loaded certs from '%s'.", certs_path));
-#endif
-		}
+		return get_cert_file_as_array(certs_path);
 	}
 #ifdef BUILTIN_CERTS_ENABLED
 	else {

core/io/stream_peer_ssl.h

@@ -46,9 +46,6 @@ protected:
 	static LoadCertsFromMemory load_certs_func;
 	static bool available;
 
-	friend class Main;
-	static bool initialize_certs;
-
 	bool blocking_handshake;
 
 public:
@@ -72,7 +69,9 @@ public:
 
 	static StreamPeerSSL *create();
 
+	static PoolByteArray get_cert_file_as_array(String p_path);
 	static PoolByteArray get_project_cert_array();
+	static void load_certs_from_file(String p_path);
 	static void load_certs_from_memory(const PoolByteArray &p_memory);
 	static bool is_available();
 

editor/editor_settings.cpp

@@ -30,6 +30,7 @@
 
 #include "editor_settings.h"
 
+#include "core/io/certs_compressed.gen.h"
 #include "core/io/compression.h"
 #include "core/io/config_file.h"
 #include "core/io/file_access_memory.h"
@@ -947,6 +948,10 @@ void EditorSettings::setup_network() {
 
 	_initial_set("network/debug/remote_port", port);
 	add_property_hint(PropertyInfo(Variant::INT, "network/debug/remote_port", PROPERTY_HINT_RANGE, "1,65535,1"));
+
+	// Editor SSL certificates override
+	_initial_set("network/ssl/editor_ssl_certificates", _SYSTEM_CERTS_PATH);
+	add_property_hint(PropertyInfo(Variant::STRING, "network/ssl/editor_ssl_certificates", PROPERTY_HINT_GLOBAL_FILE, "*.crt,*.pem"));
 }
 
 void EditorSettings::save() {

main/main.cpp

@@ -73,6 +73,7 @@
 #include "editor/doc/doc_data.h"
 #include "editor/doc/doc_data_class_path.gen.h"
 #include "editor/editor_node.h"
+#include "editor/editor_settings.h"
 #include "editor/project_manager.h"
 #endif
 
@@ -756,7 +757,6 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
 	if (editor) {
 		packed_data->set_disabled(true);
 		globals->set_disable_feature_overrides(true);
-		StreamPeerSSL::initialize_certs = false; //will be initialized by editor
 	}
 
 #endif
@@ -1595,6 +1595,7 @@ bool Main::start() {
 			sml->set_use_font_oversampling(font_oversampling);
 
 		} else {
+
 			GLOBAL_DEF("display/window/stretch/mode", "disabled");
 			ProjectSettings::get_singleton()->set_custom_property_info("display/window/stretch/mode", PropertyInfo(Variant::STRING, "display/window/stretch/mode", PROPERTY_HINT_ENUM, "disabled,2d,viewport"));
 			GLOBAL_DEF("display/window/stretch/aspect", "ignore");
@@ -1654,6 +1655,10 @@ bool Main::start() {
 		}
 
 		if (!project_manager && !editor) { // game
+
+			// Load SSL Certificates from Project Settings (or builtin)
+			StreamPeerSSL::load_certs_from_memory(StreamPeerSSL::get_project_cert_array());
+
 			if (game_path != "") {
 				Node *scene = NULL;
 				Ref<PackedScene> scenedata = ResourceLoader::load(local_game_path);
@@ -1686,6 +1691,15 @@ bool Main::start() {
 			sml->get_root()->add_child(pmanager);
 			OS::get_singleton()->set_context(OS::CONTEXT_PROJECTMAN);
 		}
+
+		if (project_manager || editor) {
+			// Load SSL Certificates from Editor Settings (or builtin)
+			String certs = EditorSettings::get_singleton()->get_setting("network/ssl/editor_ssl_certificates").operator String();
+			if (certs != "")
+				StreamPeerSSL::load_certs_from_file(certs);
+			else
+				StreamPeerSSL::load_certs_from_memory(StreamPeerSSL::get_project_cert_array());
+		}
 #endif
 	}
 

modules/mbedtls/stream_peer_mbed_tls.cpp

@@ -317,15 +317,13 @@ void StreamPeerMbedTLS::initialize_ssl() {
 	mbedtls_debug_set_threshold(1);
 #endif
 
-	PoolByteArray cert_array = StreamPeerSSL::get_project_cert_array();
-
-	if (cert_array.size() > 0)
-		_load_certs(cert_array);
-
 	available = true;
 }
 
 void StreamPeerMbedTLS::finalize_ssl() {
 
+	available = false;
+	_create = NULL;
+	load_certs_func = NULL;
 	mbedtls_x509_crt_free(&cacert);
 }