/* * Remmina - The GTK+ Remote Desktop Client * Copyright (C) 2010-2011 Vic Lee * Copyright (C) 2014-2015 Antenore Gatta, Fabio Castelli, Giovanni Panozzo * Copyright (C) 2016-2019 Antenore Gatta, Giovanni Panozzo * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301, USA. * * In addition, as a special exception, the copyright holders give * permission to link the code of portions of this program with the * OpenSSL library under certain conditions as described in each * individual source file, and distribute linked combinations * including the two. * You must obey the GNU General Public License in all respects * for all of the code used other than OpenSSL. * If you modify * file(s) with this exception, you may extend this exception to your * version of the file(s), but you are not obligated to do so. * If you * do not wish to do so, delete this exception statement from your * version. * If you delete this exception statement from all source * files in the program, then also delete it here. * */ #include "config.h" #include #include #include #include #include #include "remmina_public.h" #include "remmina_file_manager.h" #include "remmina_pref.h" #include "remmina_protocol_widget.h" #include "remmina_log.h" #include "remmina_widget_pool.h" #include "rcw.h" #include "remmina_plugin_manager.h" #include "remmina_public.h" #include "remmina_masterthread_exec.h" #include "remmina/remmina_trace_calls.h" static GPtrArray* remmina_plugin_table = NULL; /* A GHashTable of GHashTables where to store the names of the encrypted settings */ static GHashTable *encrypted_settings_cache = NULL; /* There can be only one secret plugin loaded */ static RemminaSecretPlugin *remmina_secret_plugin = NULL; static const gchar *remmina_plugin_type_name[] = { N_("Protocol"), N_("Entry"), N_("File"), N_("Tool"), N_("Preference"), N_("Secret"), NULL }; static gint remmina_plugin_manager_compare_func(RemminaPlugin **a, RemminaPlugin **b) { TRACE_CALL(__func__); return g_strcmp0((*a)->name, (*b)->name); } static void htdestroy(gpointer ht) { g_hash_table_unref(ht); } static void init_settings_cache(RemminaPlugin *plugin) { TRACE_CALL(__func__); RemminaProtocolPlugin *protocol_plugin; const RemminaProtocolSetting* setting_iter; GHashTable *pht; /* This code make a encrypted setting cache only for protocol plugins */ if (plugin->type != REMMINA_PLUGIN_TYPE_PROTOCOL) { return; } if (encrypted_settings_cache == NULL) encrypted_settings_cache = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, htdestroy); if (!(pht = g_hash_table_lookup(encrypted_settings_cache, plugin->name))) { pht = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, NULL); g_hash_table_insert(encrypted_settings_cache, g_strdup(plugin->name), pht); } /* Some settings are encrypted "by name" */ g_hash_table_insert(pht, g_strdup("ssh_password"), (gpointer)TRUE); g_hash_table_insert(pht, g_strdup("ssh_passphrase"), (gpointer)TRUE); /* Other settings are encrypted because of their type */ protocol_plugin = (RemminaProtocolPlugin *)plugin; setting_iter = protocol_plugin->basic_settings; if (setting_iter) { while (setting_iter->type != REMMINA_PROTOCOL_SETTING_TYPE_END) { if (setting_iter->type == REMMINA_PROTOCOL_SETTING_TYPE_PASSWORD) g_hash_table_insert(pht, g_strdup(remmina_plugin_manager_get_canonical_setting_name(setting_iter)), (gpointer)TRUE); setting_iter++; } } setting_iter = protocol_plugin->advanced_settings; if (setting_iter) { while (setting_iter->type != REMMINA_PROTOCOL_SETTING_TYPE_END) { if (setting_iter->type == REMMINA_PROTOCOL_SETTING_TYPE_PASSWORD) g_hash_table_insert(pht, g_strdup(remmina_plugin_manager_get_canonical_setting_name(setting_iter)), (gpointer)TRUE); setting_iter++; } } } static gboolean remmina_plugin_manager_register_plugin(RemminaPlugin *plugin) { TRACE_CALL(__func__); if (plugin->type == REMMINA_PLUGIN_TYPE_SECRET) { g_print("Remmina plugin %s (type=%s) has registered but not yet initialized/activated. " "Initialization order is %d.\n", plugin->name, _(remmina_plugin_type_name[plugin->type]), ((RemminaSecretPlugin*)plugin)->init_order); } init_settings_cache(plugin); g_ptr_array_add(remmina_plugin_table, plugin); g_ptr_array_sort(remmina_plugin_table, (GCompareFunc)remmina_plugin_manager_compare_func); return TRUE; } gboolean remmina_gtksocket_available() { GdkDisplayManager* dm; GdkDisplay* d; gboolean available; dm = gdk_display_manager_get(); d = gdk_display_manager_get_default_display(dm); available = FALSE; #ifdef GDK_WINDOWING_X11 if (GDK_IS_X11_DISPLAY(d)) { /* GtkSocket support is available only under X.Org */ available = TRUE; } #endif return available; } RemminaPluginService remmina_plugin_manager_service = { remmina_plugin_manager_register_plugin, remmina_protocol_widget_get_width, remmina_protocol_widget_set_width, remmina_protocol_widget_get_height, remmina_protocol_widget_set_height, remmina_protocol_widget_get_current_scale_mode, remmina_protocol_widget_get_expand, remmina_protocol_widget_set_expand, remmina_protocol_widget_has_error, remmina_protocol_widget_set_error, remmina_protocol_widget_is_closed, remmina_protocol_widget_get_file, remmina_protocol_widget_emit_signal, remmina_protocol_widget_register_hostkey, remmina_protocol_widget_start_direct_tunnel, remmina_protocol_widget_start_reverse_tunnel, remmina_protocol_widget_start_xport_tunnel, remmina_protocol_widget_set_display, remmina_protocol_widget_close_connection, remmina_protocol_widget_panel_authpwd, remmina_protocol_widget_panel_authuserpwd, remmina_protocol_widget_panel_new_certificate, remmina_protocol_widget_panel_changed_certificate, remmina_protocol_widget_get_username, remmina_protocol_widget_get_password, remmina_protocol_widget_get_domain, remmina_protocol_widget_get_savepassword, remmina_protocol_widget_panel_authx509, remmina_protocol_widget_get_cacert, remmina_protocol_widget_get_cacrl, remmina_protocol_widget_get_clientcert, remmina_protocol_widget_get_clientkey, remmina_protocol_widget_save_cred, remmina_protocol_widget_panel_show_listen, remmina_protocol_widget_panel_show_retry, remmina_protocol_widget_panel_show, remmina_protocol_widget_panel_hide, remmina_protocol_widget_ssh_exec, remmina_protocol_widget_chat_open, remmina_protocol_widget_chat_close, remmina_protocol_widget_chat_receive, remmina_protocol_widget_send_keys_signals, remmina_file_get_datadir, remmina_file_new, remmina_file_get_filename, remmina_file_set_string, remmina_file_get_string, remmina_file_get_secret, remmina_file_set_int, remmina_file_get_int, remmina_file_unsave_password, remmina_pref_set_value, remmina_pref_get_value, remmina_pref_get_scale_quality, remmina_pref_get_sshtunnel_port, remmina_pref_get_ssh_loglevel, remmina_pref_get_ssh_parseconfig, remmina_pref_keymap_get_keyval, remmina_log_print, remmina_log_printf, remmina_widget_pool_register, rcw_open_from_file_full, remmina_public_get_server_port, remmina_masterthread_exec_is_main_thread, remmina_gtksocket_available, remmina_protocol_widget_get_profile_remote_width, remmina_protocol_widget_get_profile_remote_height }; static void remmina_plugin_manager_load_plugin(const gchar *name) { TRACE_CALL(__func__); GModule *module; RemminaPluginEntryFunc entry; module = g_module_open(name, G_MODULE_BIND_LAZY | G_MODULE_BIND_LOCAL); if (!module) { g_print("Failed to load plugin: %s.\n", name); g_print("Error: %s\n", g_module_error()); return; } if (!g_module_symbol(module, "remmina_plugin_entry", (gpointer*)&entry)) { g_print("Failed to locate plugin entry: %s.\n", name); return; } if (!entry(&remmina_plugin_manager_service)) { g_print("Plugin entry returned false: %s.\n", name); return; } /* We don’t close the module because we will need it throughout the process lifetime */ } static gint compare_secret_plugin_init_order(gconstpointer a, gconstpointer b) { RemminaSecretPlugin *sa, *sb; sa = (RemminaSecretPlugin*)a; sb = (RemminaSecretPlugin*)b; if (sa->init_order > sb->init_order) return 1; else if (sa->init_order < sb->init_order) return -1; return 0; } void remmina_plugin_manager_init(void) { TRACE_CALL(__func__); GDir *dir; const gchar *name, *ptr; gchar *fullpath; RemminaPlugin *plugin; RemminaSecretPlugin *sp; int i; GSList *secret_plugins; GSList *sple; remmina_plugin_table = g_ptr_array_new(); if (!g_module_supported()) { g_print("Dynamic loading of plugins is not supported in this platform!\n"); return; } dir = g_dir_open(REMMINA_RUNTIME_PLUGINDIR, 0, NULL); if (dir == NULL) return; while ((name = g_dir_read_name(dir)) != NULL) { if ((ptr = strrchr(name, '.')) == NULL) continue; ptr++; if (g_strcmp0(ptr, G_MODULE_SUFFIX) != 0) continue; fullpath = g_strdup_printf(REMMINA_RUNTIME_PLUGINDIR "/%s", name); remmina_plugin_manager_load_plugin(fullpath); g_free(fullpath); } g_dir_close(dir); /* Now all secret plugins needs to initialize, following their init_order. * The 1st plugin which will initialize correctly will be * the default remmina_secret_plugin */ if (remmina_secret_plugin) g_print("Internal ERROR: remmina_secret_plugin must be null here\n"); secret_plugins = NULL; for (i = 0; i < remmina_plugin_table->len; i++) { plugin = (RemminaPlugin*)g_ptr_array_index(remmina_plugin_table, i); if (plugin->type == REMMINA_PLUGIN_TYPE_SECRET) { secret_plugins = g_slist_insert_sorted(secret_plugins, (gpointer)plugin, compare_secret_plugin_init_order); } } sple = secret_plugins; while(sple != NULL) { sp = (RemminaSecretPlugin*)sple->data; if (sp->init()) { g_print("Secret plugin %s has been successfully initialized and will be your default secret plugin\n", sp->name); remmina_secret_plugin = sp; break; } sple = sple->next; } g_slist_free(secret_plugins); } RemminaPlugin* remmina_plugin_manager_get_plugin(RemminaPluginType type, const gchar *name) { TRACE_CALL(__func__); RemminaPlugin *plugin; gint i; for (i = 0; i < remmina_plugin_table->len; i++) { plugin = (RemminaPlugin*)g_ptr_array_index(remmina_plugin_table, i); if (plugin->type == type && g_strcmp0(plugin->name, name) == 0) { return plugin; } } return NULL; } const gchar *remmina_plugin_manager_get_canonical_setting_name(const RemminaProtocolSetting* setting) { if (setting->name == NULL) { if (setting->type == REMMINA_PROTOCOL_SETTING_TYPE_SERVER) return "server"; if (setting->type == REMMINA_PROTOCOL_SETTING_TYPE_PASSWORD) return "password"; if (setting->type == REMMINA_PROTOCOL_SETTING_TYPE_RESOLUTION) return "resolution"; return "missing_setting_name_into_plugin_RemminaProtocolSetting"; } return setting->name; } void remmina_plugin_manager_for_each_plugin(RemminaPluginType type, RemminaPluginFunc func, gpointer data) { TRACE_CALL(__func__); RemminaPlugin *plugin; gint i; for (i = 0; i < remmina_plugin_table->len; i++) { plugin = (RemminaPlugin*)g_ptr_array_index(remmina_plugin_table, i); if (plugin->type == type) { func((gchar*)plugin->name, plugin, data); } } } /* A copy of remmina_plugin_manager_show and remmina_plugin_manager_show_for_each * This is because we want to print the list of plugins, and their versions, to the standard output * with the remmina command line option --full-version instead of using the plugins widget ** @todo Investigate to use only GListStore and than pass the elements to be shown to 2 separate * functions * WARNING: GListStore is supported only from GLib 2.44 */ static gboolean remmina_plugin_manager_show_for_each_stdout(RemminaPlugin *plugin) { TRACE_CALL(__func__); g_print("%-20s%-16s%-64s%-10s\n", plugin->name, _(remmina_plugin_type_name[plugin->type]), g_dgettext(plugin->domain, plugin->description), plugin->version); return FALSE; } void remmina_plugin_manager_show_stdout() { TRACE_CALL(__func__); g_print("%-20s%-16s%-64s%-10s\n", "NAME", "TYPE", "DESCRIPTION", "PLUGIN AND LIBRARY VERSION"); g_ptr_array_foreach(remmina_plugin_table, (GFunc)remmina_plugin_manager_show_for_each_stdout, NULL); } static gboolean remmina_plugin_manager_show_for_each(RemminaPlugin *plugin, GtkListStore *store) { TRACE_CALL(__func__); GtkTreeIter iter; gtk_list_store_append(store, &iter); gtk_list_store_set(store, &iter, 0, plugin->name, 1, _(remmina_plugin_type_name[plugin->type]), 2, g_dgettext(plugin->domain, plugin->description), 3, plugin->version, -1); return FALSE; } void remmina_plugin_manager_show(GtkWindow *parent) { TRACE_CALL(__func__); GtkWidget *dialog; GtkWidget *scrolledwindow; GtkWidget *tree; GtkCellRenderer *renderer; GtkTreeViewColumn *column; GtkListStore *store; dialog = gtk_dialog_new_with_buttons(_("Plugins"), parent, GTK_DIALOG_MODAL, _("_OK"), GTK_RESPONSE_ACCEPT, NULL); g_signal_connect(G_OBJECT(dialog), "response", G_CALLBACK(gtk_widget_destroy), dialog); gtk_window_set_default_size(GTK_WINDOW(dialog), 500, 350); scrolledwindow = gtk_scrolled_window_new(NULL, NULL); gtk_widget_show(scrolledwindow); gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwindow), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(dialog))), scrolledwindow, TRUE, TRUE, 0); tree = gtk_tree_view_new(); gtk_container_add(GTK_CONTAINER(scrolledwindow), tree); gtk_widget_show(tree); store = gtk_list_store_new(4, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING); g_ptr_array_foreach(remmina_plugin_table, (GFunc)remmina_plugin_manager_show_for_each, store); gtk_tree_view_set_model(GTK_TREE_VIEW(tree), GTK_TREE_MODEL(store)); renderer = gtk_cell_renderer_text_new(); column = gtk_tree_view_column_new_with_attributes(_("Name"), renderer, "text", 0, NULL); gtk_tree_view_column_set_resizable(column, TRUE); gtk_tree_view_column_set_sort_column_id(column, 0); gtk_tree_view_append_column(GTK_TREE_VIEW(tree), column); renderer = gtk_cell_renderer_text_new(); column = gtk_tree_view_column_new_with_attributes(_("Type"), renderer, "text", 1, NULL); gtk_tree_view_column_set_resizable(column, TRUE); gtk_tree_view_column_set_sort_column_id(column, 1); gtk_tree_view_append_column(GTK_TREE_VIEW(tree), column); renderer = gtk_cell_renderer_text_new(); column = gtk_tree_view_column_new_with_attributes(_("Description"), renderer, "text", 2, NULL); gtk_tree_view_column_set_resizable(column, TRUE); gtk_tree_view_column_set_sort_column_id(column, 2); gtk_tree_view_append_column(GTK_TREE_VIEW(tree), column); renderer = gtk_cell_renderer_text_new(); column = gtk_tree_view_column_new_with_attributes(_("Version"), renderer, "text", 3, NULL); gtk_tree_view_column_set_resizable(column, TRUE); gtk_tree_view_column_set_sort_column_id(column, 3); gtk_tree_view_append_column(GTK_TREE_VIEW(tree), column); gtk_widget_show(dialog); } RemminaFilePlugin* remmina_plugin_manager_get_import_file_handler(const gchar *file) { TRACE_CALL(__func__); RemminaFilePlugin *plugin; gint i; for (i = 0; i < remmina_plugin_table->len; i++) { plugin = (RemminaFilePlugin*)g_ptr_array_index(remmina_plugin_table, i); if (plugin->type != REMMINA_PLUGIN_TYPE_FILE) continue; if (plugin->import_test_func(file)) { return plugin; } } return NULL; } RemminaFilePlugin* remmina_plugin_manager_get_export_file_handler(RemminaFile *remminafile) { TRACE_CALL(__func__); RemminaFilePlugin *plugin; gint i; for (i = 0; i < remmina_plugin_table->len; i++) { plugin = (RemminaFilePlugin*)g_ptr_array_index(remmina_plugin_table, i); if (plugin->type != REMMINA_PLUGIN_TYPE_FILE) continue; if (plugin->export_test_func(remminafile)) { return plugin; } } return NULL; } RemminaSecretPlugin* remmina_plugin_manager_get_secret_plugin(void) { TRACE_CALL(__func__); return remmina_secret_plugin; } gboolean remmina_plugin_manager_query_feature_by_type(RemminaPluginType ptype, const gchar* name, RemminaProtocolFeatureType ftype) { TRACE_CALL(__func__); const RemminaProtocolFeature *feature; RemminaProtocolPlugin* plugin; plugin = (RemminaProtocolPlugin*)remmina_plugin_manager_get_plugin(ptype, name); if (plugin == NULL) { return FALSE; } for (feature = plugin->features; feature && feature->type; feature++) { if (feature->type == ftype) return TRUE; } return FALSE; } gboolean remmina_plugin_manager_is_encrypted_setting(RemminaProtocolPlugin *pp, const char *setting) { TRACE_CALL(__func__); GHashTable *pht; if (encrypted_settings_cache == NULL) return FALSE; if (!(pht = g_hash_table_lookup(encrypted_settings_cache, pp->name))) return FALSE; if (!g_hash_table_lookup(pht, setting)) return FALSE; return TRUE; }