From 90f7f1a0e61fa20ed1b74b9df057aa70abc791ed Mon Sep 17 00:00:00 2001 From: emersion Date: Tue, 5 Dec 2017 10:40:55 +0100 Subject: [PATCH] Add minimal config subsystem --- include/sway/commands.h | 10 + include/sway/config.h | 405 +++++++++++++++++++++++++++++ meson.build | 2 + sway/commands.c | 132 ++++++++++ sway/commands/exec.c | 6 +- sway/commands/exec_always.c | 6 +- sway/commands/exit.c | 4 +- sway/config.c | 504 ++++++++++++++++++++++++++++++++++++ sway/main.c | 21 +- sway/meson.build | 2 + sway/security.c | 18 ++ 11 files changed, 1091 insertions(+), 19 deletions(-) create mode 100644 include/sway/config.h create mode 100644 sway/config.c create mode 100644 sway/security.c diff --git a/include/sway/commands.h b/include/sway/commands.h index df5c6859..b1f0423d 100644 --- a/include/sway/commands.h +++ b/include/sway/commands.h @@ -46,6 +46,16 @@ struct cmd_results *checkarg(int argc, const char *name, * Parse and handles a command. */ struct cmd_results *handle_command(char *command); +/** + * Parse and handles a command during config file loading. + * + * Do not use this under normal conditions. + */ +struct cmd_results *config_command(char *command, enum cmd_status block); +/* + * Parses a command policy rule. + */ +struct cmd_results *config_commands_command(char *exec); /** * Allocates a cmd_results object. */ diff --git a/include/sway/config.h b/include/sway/config.h new file mode 100644 index 00000000..56b4e637 --- /dev/null +++ b/include/sway/config.h @@ -0,0 +1,405 @@ +#ifndef _SWAY_CONFIG_H +#define _SWAY_CONFIG_H + +#define PID_WORKSPACE_TIMEOUT 60 + +#include +#include +#include +#include +#include +#include +#include "list.h" +#include "layout.h" +#include "container.h" + +/** + * Describes a variable created via the `set` command. + */ +struct sway_variable { + char *name; + char *value; +}; + +/** + * A key binding and an associated command. + */ +struct sway_binding { + int order; + bool release; + bool bindcode; + list_t *keys; + uint32_t modifiers; + char *command; +}; + +/** + * A mouse binding and an associated command. + */ +struct sway_mouse_binding { + uint32_t button; + char *command; +}; + +/** + * A "mode" of keybindings created via the `mode` command. + */ +struct sway_mode { + char *name; + list_t *bindings; +}; + +/** + * libinput options for input devices + */ +struct input_config { + char *identifier; + + int accel_profile; + int click_method; + int drag_lock; + int dwt; + int left_handed; + int middle_emulation; + int natural_scroll; + float pointer_accel; + int scroll_method; + int send_events; + int tap; + + bool capturable; + struct wlc_geometry region; +}; + +/** + * Size and position configuration for a particular output. + * + * This is set via the `output` command. + */ +struct output_config { + char *name; + int enabled; + int width, height; + int x, y; + int scale; + char *background; + char *background_option; +}; + +/** + * Maps a workspace name to an output name. + * + * Set via `workspace output ` + */ +struct workspace_output { + char *output; + char *workspace; +}; + +struct pid_workspace { + pid_t *pid; + char *workspace; + time_t *time_added; +}; + +struct bar_config { + /** + * One of "dock", "hide", "invisible" + * + * Always visible in dock mode. Visible only when modifier key is held in hide mode. + * Never visible in invisible mode. + */ + char *mode; + /** + * One of "show" or "hide". + * + * In "show" mode, it will always be shown on top of the active workspace. + */ + char *hidden_state; + /** + * Id name used to identify the bar through IPC. + * + * Defaults to bar-x, where x corresponds to the position of the + * embedding bar block in the config file (bar-0, bar-1, ...). + */ + char *id; + uint32_t modifier; + list_t *outputs; + //enum desktop_shell_panel_position position; // TODO + list_t *bindings; + char *status_command; + bool pango_markup; + char *swaybar_command; + char *font; + int height; // -1 not defined + +#ifdef ENABLE_TRAY + // Tray + char *tray_output; + char *icon_theme; + uint32_t tray_padding; + uint32_t activate_button; + uint32_t context_button; + uint32_t secondary_button; +#endif + + bool workspace_buttons; + bool wrap_scroll; + char *separator_symbol; + bool strip_workspace_numbers; + bool binding_mode_indicator; + bool verbose; + pid_t pid; + struct { + char *background; + char *statusline; + char *separator; + char *focused_background; + char *focused_statusline; + char *focused_separator; + char *focused_workspace_border; + char *focused_workspace_bg; + char *focused_workspace_text; + char *active_workspace_border; + char *active_workspace_bg; + char *active_workspace_text; + char *inactive_workspace_border; + char *inactive_workspace_bg; + char *inactive_workspace_text; + char *urgent_workspace_border; + char *urgent_workspace_bg; + char *urgent_workspace_text; + char *binding_mode_border; + char *binding_mode_bg; + char *binding_mode_text; + } colors; +}; + +struct border_colors { + uint32_t border; + uint32_t background; + uint32_t text; + uint32_t indicator; + uint32_t child_border; +}; + +enum edge_border_types { + E_NONE, /**< Don't hide edge borders */ + E_VERTICAL, /**< hide vertical edge borders */ + E_HORIZONTAL, /**< hide horizontal edge borders */ + E_BOTH, /**< hide vertical and horizontal edge borders */ + E_SMART /**< hide both if precisely one window is present in workspace */ +}; + +enum command_context { + CONTEXT_CONFIG = 1, + CONTEXT_BINDING = 2, + CONTEXT_IPC = 4, + CONTEXT_CRITERIA = 8, + CONTEXT_ALL = 0xFFFFFFFF, +}; + +struct command_policy { + char *command; + uint32_t context; +}; + +enum secure_feature { + FEATURE_LOCK = 1, + FEATURE_PANEL = 2, + FEATURE_BACKGROUND = 4, + FEATURE_SCREENSHOT = 8, + FEATURE_FULLSCREEN = 16, + FEATURE_KEYBOARD = 32, + FEATURE_MOUSE = 64, +}; + +struct feature_policy { + char *program; + uint32_t features; +}; + +enum ipc_feature { + IPC_FEATURE_COMMAND = 1, + IPC_FEATURE_GET_WORKSPACES = 2, + IPC_FEATURE_GET_OUTPUTS = 4, + IPC_FEATURE_GET_TREE = 8, + IPC_FEATURE_GET_MARKS = 16, + IPC_FEATURE_GET_BAR_CONFIG = 32, + IPC_FEATURE_GET_VERSION = 64, + IPC_FEATURE_GET_INPUTS = 128, + IPC_FEATURE_EVENT_WORKSPACE = 256, + IPC_FEATURE_EVENT_OUTPUT = 512, + IPC_FEATURE_EVENT_MODE = 1024, + IPC_FEATURE_EVENT_WINDOW = 2048, + IPC_FEATURE_EVENT_BINDING = 4096, + IPC_FEATURE_EVENT_INPUT = 8192, + IPC_FEATURE_GET_CLIPBOARD = 16384, + + IPC_FEATURE_ALL_COMMANDS = 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 16384, + IPC_FEATURE_ALL_EVENTS = 256 | 512 | 1024 | 2048 | 4096 | 8192, + + IPC_FEATURE_ALL = IPC_FEATURE_ALL_COMMANDS | IPC_FEATURE_ALL_EVENTS, +}; + +struct ipc_policy { + char *program; + uint32_t features; +}; + +/** + * The configuration struct. The result of loading a config file. + */ +struct sway_config { + list_t *symbols; + list_t *modes; + list_t *bars; + list_t *cmd_queue; + list_t *workspace_outputs; + list_t *pid_workspaces; + list_t *output_configs; + list_t *input_configs; + list_t *criteria; + list_t *no_focus; + list_t *active_bar_modifiers; + struct sway_mode *current_mode; + struct bar_config *current_bar; + uint32_t floating_mod; + uint32_t dragging_key; + uint32_t resizing_key; + char *floating_scroll_up_cmd; + char *floating_scroll_down_cmd; + char *floating_scroll_left_cmd; + char *floating_scroll_right_cmd; + enum swayc_layouts default_orientation; + enum swayc_layouts default_layout; + char *font; + int font_height; + + // Flags + bool focus_follows_mouse; + bool mouse_warping; + bool force_focus_wrapping; + bool active; + bool failed; + bool reloading; + bool reading; + bool auto_back_and_forth; + bool seamless_mouse; + bool show_marks; + + bool edge_gaps; + bool smart_gaps; + int gaps_inner; + int gaps_outer; + + list_t *config_chain; + const char *current_config; + + enum swayc_border_types border; + enum swayc_border_types floating_border; + int border_thickness; + int floating_border_thickness; + enum edge_border_types hide_edge_borders; + + // border colors + struct { + struct border_colors focused; + struct border_colors focused_inactive; + struct border_colors unfocused; + struct border_colors urgent; + struct border_colors placeholder; + uint32_t background; + } border_colors; + + // floating view + int32_t floating_maximum_width; + int32_t floating_maximum_height; + int32_t floating_minimum_width; + int32_t floating_minimum_height; + + // Security + list_t *command_policies; + list_t *feature_policies; + list_t *ipc_policies; +}; + +void pid_workspace_add(struct pid_workspace *pw); +void free_pid_workspace(struct pid_workspace *pw); + +/** + * Loads the main config from the given path. is_active should be true when + * reloading the config. + */ +bool load_main_config(const char *path, bool is_active); + +/** + * Loads an included config. Can only be used after load_main_config. + */ +bool load_include_configs(const char *path, struct sway_config *config); + +/** + * Reads the config from the given FILE. + */ +bool read_config(FILE *file, struct sway_config *config); + +/** + * Free config struct + */ +void free_config(struct sway_config *config); +/** + * Does variable replacement for a string based on the config's currently loaded variables. + */ +char *do_var_replacement(char *str); + +struct cmd_results *check_security_config(); + +int input_identifier_cmp(const void *item, const void *data); +void merge_input_config(struct input_config *dst, struct input_config *src); +void apply_input_config(struct input_config *ic, struct libinput_device *dev); +void free_input_config(struct input_config *ic); + +int output_name_cmp(const void *item, const void *data); +void merge_output_config(struct output_config *dst, struct output_config *src); +/** Sets up a WLC output handle based on a given output_config. + */ +void apply_output_config(struct output_config *oc, swayc_t *output); +void free_output_config(struct output_config *oc); + +/** + * Updates the list of active bar modifiers + */ +void update_active_bar_modifiers(void); + +int workspace_output_cmp_workspace(const void *a, const void *b); + +int sway_binding_cmp(const void *a, const void *b); +int sway_binding_cmp_qsort(const void *a, const void *b); +int sway_binding_cmp_keys(const void *a, const void *b); +void free_sway_binding(struct sway_binding *sb); +struct sway_binding *sway_binding_dup(struct sway_binding *sb); + +int sway_mouse_binding_cmp(const void *a, const void *b); +int sway_mouse_binding_cmp_qsort(const void *a, const void *b); +int sway_mouse_binding_cmp_buttons(const void *a, const void *b); +void free_sway_mouse_binding(struct sway_mouse_binding *smb); + +void load_swaybars(); +void terminate_swaybg(pid_t pid); + +/** + * Allocate and initialize default bar configuration. + */ +struct bar_config *default_bar_config(void); + +/** + * Global config singleton. + */ +extern struct sway_config *config; + +/** + * Config file currently being read. + */ +extern const char *current_config_path; + +#endif diff --git a/meson.build b/meson.build index 695e237e..8e7b98ed 100644 --- a/meson.build +++ b/meson.build @@ -65,6 +65,8 @@ if a2x.found() endforeach endif +add_project_arguments('-DSYSCONFDIR="/@0@"'.format(sysconfdir), language : 'c') + version = get_option('sway_version') if version != '' version = '"@0@"'.format(version) diff --git a/sway/commands.c b/sway/commands.c index 5fdcdbb6..17638129 100644 --- a/sway/commands.c +++ b/sway/commands.c @@ -7,6 +7,8 @@ #include #include #include "sway/commands.h" +#include "sway/config.h" +#include "sway/security.h" #include "stringop.h" #include "log.h" @@ -200,6 +202,136 @@ cleanup: return results; } +// this is like handle_command above, except: +// 1) it ignores empty commands (empty lines) +// 2) it does variable substitution +// 3) it doesn't split commands (because the multiple commands are supposed to +// be chained together) +// 4) handle_command handles all state internally while config_command has some +// state handled outside (notably the block mode, in read_config) +struct cmd_results *config_command(char *exec, enum cmd_status block) { + struct cmd_results *results = NULL; + int argc; + char **argv = split_args(exec, &argc); + if (!argc) { + results = cmd_results_new(CMD_SUCCESS, NULL, NULL); + goto cleanup; + } + + sway_log(L_INFO, "handling config command '%s'", exec); + // Endblock + if (**argv == '}') { + results = cmd_results_new(CMD_BLOCK_END, NULL, NULL); + goto cleanup; + } + struct cmd_handler *handler = find_handler(argv[0], block); + if (!handler) { + char *input = argv[0] ? argv[0] : "(empty)"; + results = cmd_results_new(CMD_INVALID, input, "Unknown/invalid command"); + goto cleanup; + } + int i; + // Var replacement, for all but first argument of set + // TODO commands + for (i = /*handler->handle == cmd_set ? 2 :*/ 1; i < argc; ++i) { + argv[i] = do_var_replacement(argv[i]); + unescape_string(argv[i]); + } + /* Strip quotes for first argument. + * TODO This part needs to be handled much better */ + if (argc>1 && (*argv[1] == '\"' || *argv[1] == '\'')) { + strip_quotes(argv[1]); + } + if (handler->handle) { + results = handler->handle(argc-1, argv+1); + } else { + results = cmd_results_new(CMD_INVALID, argv[0], "This command is shimmed, but unimplemented"); + } + +cleanup: + free_argv(argc, argv); + return results; +} + +struct cmd_results *config_commands_command(char *exec) { + struct cmd_results *results = NULL; + int argc; + char **argv = split_args(exec, &argc); + if (!argc) { + results = cmd_results_new(CMD_SUCCESS, NULL, NULL); + goto cleanup; + } + + // Find handler for the command this is setting a policy for + char *cmd = argv[0]; + + if (strcmp(cmd, "}") == 0) { + results = cmd_results_new(CMD_BLOCK_END, NULL, NULL); + goto cleanup; + } + + struct cmd_handler *handler = find_handler(cmd, CMD_BLOCK_END); + if (!handler && strcmp(cmd, "*") != 0) { + char *input = cmd ? cmd : "(empty)"; + results = cmd_results_new(CMD_INVALID, input, "Unknown/invalid command"); + goto cleanup; + } + + enum command_context context = 0; + + struct { + char *name; + enum command_context context; + } context_names[] = { + { "config", CONTEXT_CONFIG }, + { "binding", CONTEXT_BINDING }, + { "ipc", CONTEXT_IPC }, + { "criteria", CONTEXT_CRITERIA }, + { "all", CONTEXT_ALL }, + }; + + for (int i = 1; i < argc; ++i) { + size_t j; + for (j = 0; j < sizeof(context_names) / sizeof(context_names[0]); ++j) { + if (strcmp(context_names[j].name, argv[i]) == 0) { + break; + } + } + if (j == sizeof(context_names) / sizeof(context_names[0])) { + results = cmd_results_new(CMD_INVALID, cmd, + "Invalid command context %s", argv[i]); + goto cleanup; + } + context |= context_names[j].context; + } + + struct command_policy *policy = NULL; + for (int i = 0; i < config->command_policies->length; ++i) { + struct command_policy *p = config->command_policies->items[i]; + if (strcmp(p->command, cmd) == 0) { + policy = p; + break; + } + } + if (!policy) { + policy = alloc_command_policy(cmd); + sway_assert(policy, "Unable to allocate security policy"); + if (policy) { + list_add(config->command_policies, policy); + } + } + policy->context = context; + + sway_log(L_INFO, "Set command policy for %s to %d", + policy->command, policy->context); + + results = cmd_results_new(CMD_SUCCESS, NULL, NULL); + +cleanup: + free_argv(argc, argv); + return results; +} + struct cmd_results *cmd_results_new(enum cmd_status status, const char *input, const char *format, ...) { struct cmd_results *results = malloc(sizeof(struct cmd_results)); diff --git a/sway/commands/exec.c b/sway/commands/exec.c index dd71500a..fbbc4941 100644 --- a/sway/commands/exec.c +++ b/sway/commands/exec.c @@ -1,16 +1,16 @@ #include #include "sway/commands.h" +#include "sway/config.h" #include "log.h" #include "stringop.h" struct cmd_results *cmd_exec(int argc, char **argv) { - // TODO: config - /*if (!config->active) return cmd_results_new(CMD_DEFER, "exec", NULL); + if (!config->active) return cmd_results_new(CMD_DEFER, "exec", NULL); if (config->reloading) { char *args = join_args(argv, argc); sway_log(L_DEBUG, "Ignoring 'exec %s' due to reload", args); free(args); return cmd_results_new(CMD_SUCCESS, NULL, NULL); - }*/ + } return cmd_exec_always(argc, argv); } diff --git a/sway/commands/exec_always.c b/sway/commands/exec_always.c index 0a252e7b..9527a487 100644 --- a/sway/commands/exec_always.c +++ b/sway/commands/exec_always.c @@ -5,15 +5,15 @@ #include #include #include "sway/commands.h" -#include "sway/workspace.h" +#include "sway/config.h" #include "sway/container.h" +#include "sway/workspace.h" #include "log.h" #include "stringop.h" struct cmd_results *cmd_exec_always(int argc, char **argv) { struct cmd_results *error = NULL; - // TODO: config - //if (!config->active) return cmd_results_new(CMD_DEFER, NULL, NULL); + if (!config->active) return cmd_results_new(CMD_DEFER, NULL, NULL); if ((error = checkarg(argc, "exec_always", EXPECTED_MORE_THAN, 0))) { return error; } diff --git a/sway/commands/exit.c b/sway/commands/exit.c index d294e344..4bb6a97b 100644 --- a/sway/commands/exit.c +++ b/sway/commands/exit.c @@ -1,19 +1,17 @@ #include #include "sway/commands.h" +#include "sway/config.h" void sway_terminate(int exit_code); struct cmd_results *cmd_exit(int argc, char **argv) { struct cmd_results *error = NULL; - /* TODO if (config->reading) { return cmd_results_new(CMD_FAILURE, "exit", "Can't be used in config file."); } - */ if ((error = checkarg(argc, "exit", EXPECTED_EQUAL_TO, 0))) { return error; } sway_terminate(0); return cmd_results_new(CMD_SUCCESS, NULL, NULL); } - diff --git a/sway/config.c b/sway/config.c new file mode 100644 index 00000000..475e8b04 --- /dev/null +++ b/sway/config.c @@ -0,0 +1,504 @@ +#define _POSIX_C_SOURCE 200809L +#define _XOPEN_SOURCE 700 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#ifdef __linux__ +#include +#elif __FreeBSD__ +#include +#endif +#include +#include "sway/commands.h" +#include "sway/config.h" +#include "sway/layout.h" +#include "readline.h" +#include "stringop.h" +#include "list.h" +#include "log.h" + +struct sway_config *config = NULL; + +void free_config(struct sway_config *config) { + // TODO +} + +static void config_defaults(struct sway_config *config) { + if (!(config->symbols = create_list())) goto cleanup; + if (!(config->modes = create_list())) goto cleanup; + if (!(config->bars = create_list())) goto cleanup; + if (!(config->workspace_outputs = create_list())) goto cleanup; + if (!(config->pid_workspaces = create_list())) goto cleanup; + if (!(config->criteria = create_list())) goto cleanup; + if (!(config->no_focus = create_list())) goto cleanup; + if (!(config->input_configs = create_list())) goto cleanup; + if (!(config->output_configs = create_list())) goto cleanup; + + if (!(config->cmd_queue = create_list())) goto cleanup; + + if (!(config->current_mode = malloc(sizeof(struct sway_mode)))) goto cleanup; + if (!(config->current_mode->name = malloc(sizeof("default")))) goto cleanup; + strcpy(config->current_mode->name, "default"); + if (!(config->current_mode->bindings = create_list())) goto cleanup; + list_add(config->modes, config->current_mode); + + config->floating_mod = 0; + config->dragging_key = BTN_LEFT; + config->resizing_key = BTN_RIGHT; + if (!(config->floating_scroll_up_cmd = strdup(""))) goto cleanup; + if (!(config->floating_scroll_down_cmd = strdup(""))) goto cleanup; + if (!(config->floating_scroll_left_cmd = strdup(""))) goto cleanup; + if (!(config->floating_scroll_right_cmd = strdup(""))) goto cleanup; + config->default_layout = L_NONE; + config->default_orientation = L_NONE; + if (!(config->font = strdup("monospace 10"))) goto cleanup; + // TODO: border + //config->font_height = get_font_text_height(config->font); + + // floating view + config->floating_maximum_width = 0; + config->floating_maximum_height = 0; + config->floating_minimum_width = 75; + config->floating_minimum_height = 50; + + // Flags + config->focus_follows_mouse = true; + config->mouse_warping = true; + config->reloading = false; + config->active = false; + config->failed = false; + config->auto_back_and_forth = false; + config->seamless_mouse = true; + config->reading = false; + config->show_marks = true; + + config->edge_gaps = true; + config->smart_gaps = false; + config->gaps_inner = 0; + config->gaps_outer = 0; + + if (!(config->active_bar_modifiers = create_list())) goto cleanup; + + if (!(config->config_chain = create_list())) goto cleanup; + config->current_config = NULL; + + // borders + config->border = B_NORMAL; + config->floating_border = B_NORMAL; + config->border_thickness = 2; + config->floating_border_thickness = 2; + config->hide_edge_borders = E_NONE; + + // border colors + config->border_colors.focused.border = 0x4C7899FF; + config->border_colors.focused.background = 0x285577FF; + config->border_colors.focused.text = 0xFFFFFFFF; + config->border_colors.focused.indicator = 0x2E9EF4FF; + config->border_colors.focused.child_border = 0x285577FF; + + config->border_colors.focused_inactive.border = 0x333333FF; + config->border_colors.focused_inactive.background = 0x5F676AFF; + config->border_colors.focused_inactive.text = 0xFFFFFFFF; + config->border_colors.focused_inactive.indicator = 0x484E50FF; + config->border_colors.focused_inactive.child_border = 0x5F676AFF; + + config->border_colors.unfocused.border = 0x333333FF; + config->border_colors.unfocused.background = 0x222222FF; + config->border_colors.unfocused.text = 0x888888FF; + config->border_colors.unfocused.indicator = 0x292D2EFF; + config->border_colors.unfocused.child_border = 0x222222FF; + + config->border_colors.urgent.border = 0x2F343AFF; + config->border_colors.urgent.background = 0x900000FF; + config->border_colors.urgent.text = 0xFFFFFFFF; + config->border_colors.urgent.indicator = 0x900000FF; + config->border_colors.urgent.child_border = 0x900000FF; + + config->border_colors.placeholder.border = 0x000000FF; + config->border_colors.placeholder.background = 0x0C0C0CFF; + config->border_colors.placeholder.text = 0xFFFFFFFF; + config->border_colors.placeholder.indicator = 0x000000FF; + config->border_colors.placeholder.child_border = 0x0C0C0CFF; + + config->border_colors.background = 0xFFFFFFFF; + + // Security + if (!(config->command_policies = create_list())) goto cleanup; + if (!(config->feature_policies = create_list())) goto cleanup; + if (!(config->ipc_policies = create_list())) goto cleanup; + + return; +cleanup: + sway_abort("Unable to allocate config structures"); +} + +static bool file_exists(const char *path) { + return path && access(path, R_OK) != -1; +} + +static char *get_config_path(void) { + static const char *config_paths[] = { + "$HOME/.sway/config", + "$XDG_CONFIG_HOME/sway/config", + "$HOME/.i3/config", + "$XDG_CONFIG_HOME/i3/config", + SYSCONFDIR "/sway/config", + SYSCONFDIR "/i3/config", + }; + + if (!getenv("XDG_CONFIG_HOME")) { + char *home = getenv("HOME"); + char *config_home = malloc(strlen(home) + strlen("/.config") + 1); + if (!config_home) { + sway_log(L_ERROR, "Unable to allocate $HOME/.config"); + } else { + strcpy(config_home, home); + strcat(config_home, "/.config"); + setenv("XDG_CONFIG_HOME", config_home, 1); + sway_log(L_DEBUG, "Set XDG_CONFIG_HOME to %s", config_home); + free(config_home); + } + } + + wordexp_t p; + char *path; + + int i; + for (i = 0; i < (int)(sizeof(config_paths) / sizeof(char *)); ++i) { + if (wordexp(config_paths[i], &p, 0) == 0) { + path = strdup(p.we_wordv[0]); + wordfree(&p); + if (file_exists(path)) { + return path; + } + } + } + + return NULL; // Not reached +} + +const char *current_config_path; + +static bool load_config(const char *path, struct sway_config *config) { + sway_log(L_INFO, "Loading config from %s", path); + current_config_path = path; + + struct stat sb; + if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) { + return false; + } + + if (path == NULL) { + sway_log(L_ERROR, "Unable to find a config file!"); + return false; + } + + FILE *f = fopen(path, "r"); + if (!f) { + sway_log(L_ERROR, "Unable to open %s for reading", path); + return false; + } + + bool config_load_success = read_config(f, config); + fclose(f); + + if (!config_load_success) { + sway_log(L_ERROR, "Error(s) loading config!"); + } + + current_config_path = NULL; + return true; +} + +static int qstrcmp(const void* a, const void* b) { + return strcmp(*((char**) a), *((char**) b)); +} + +bool load_main_config(const char *file, bool is_active) { + char *path; + if (file != NULL) { + path = strdup(file); + } else { + path = get_config_path(); + } + + struct sway_config *old_config = config; + config = calloc(1, sizeof(struct sway_config)); + if (!config) { + sway_abort("Unable to allocate config"); + } + + config_defaults(config); + if (is_active) { + sway_log(L_DEBUG, "Performing configuration file reload"); + config->reloading = true; + config->active = true; + } + + config->current_config = path; + list_add(config->config_chain, path); + + config->reading = true; + + // Read security configs + bool success = true; + DIR *dir = opendir(SYSCONFDIR "/sway/security.d"); + if (!dir) { + sway_log(L_ERROR, "%s does not exist, sway will have no security configuration" + " and will probably be broken", SYSCONFDIR "/sway/security.d"); + } else { + list_t *secconfigs = create_list(); + char *base = SYSCONFDIR "/sway/security.d/"; + struct dirent *ent = readdir(dir); + struct stat s; + while (ent != NULL) { + char *_path = malloc(strlen(ent->d_name) + strlen(base) + 1); + strcpy(_path, base); + strcat(_path, ent->d_name); + lstat(_path, &s); + if (S_ISREG(s.st_mode) && ent->d_name[0] != '.') { + list_add(secconfigs, _path); + } + else { + free(_path); + } + ent = readdir(dir); + } + closedir(dir); + + list_qsort(secconfigs, qstrcmp); + for (int i = 0; i < secconfigs->length; ++i) { + char *_path = secconfigs->items[i]; + if (stat(_path, &s) || s.st_uid != 0 || s.st_gid != 0 || (((s.st_mode & 0777) != 0644) && (s.st_mode & 0777) != 0444)) { + sway_log(L_ERROR, "Refusing to load %s - it must be owned by root and mode 644 or 444", _path); + success = false; + } else { + success = success && load_config(_path, config); + } + } + + free_flat_list(secconfigs); + } + + success = success && load_config(path, config); + + if (is_active) { + config->reloading = false; + } + + if (old_config) { + free_config(old_config); + } + config->reading = false; + + if (success) { + // TODO: bar + //update_active_bar_modifiers(); + } + + return success; +} + +bool read_config(FILE *file, struct sway_config *config) { + bool success = true; + enum cmd_status block = CMD_BLOCK_END; + + int line_number = 0; + char *line; + while (!feof(file)) { + line = read_line(file); + if (!line) { + continue; + } + line_number++; + line = strip_whitespace(line); + if (line[0] == '#') { + free(line); + continue; + } + struct cmd_results *res; + if (block == CMD_BLOCK_COMMANDS) { + // Special case + res = config_commands_command(line); + } else { + res = config_command(line, block); + } + switch(res->status) { + case CMD_FAILURE: + case CMD_INVALID: + sway_log(L_ERROR, "Error on line %i '%s': %s (%s)", line_number, line, + res->error, config->current_config); + success = false; + break; + + case CMD_DEFER: + sway_log(L_DEBUG, "Defferring command `%s'", line); + list_add(config->cmd_queue, strdup(line)); + break; + + case CMD_BLOCK_MODE: + if (block == CMD_BLOCK_END) { + block = CMD_BLOCK_MODE; + } else { + sway_log(L_ERROR, "Invalid block '%s'", line); + } + break; + + case CMD_BLOCK_INPUT: + if (block == CMD_BLOCK_END) { + block = CMD_BLOCK_INPUT; + } else { + sway_log(L_ERROR, "Invalid block '%s'", line); + } + break; + + case CMD_BLOCK_BAR: + if (block == CMD_BLOCK_END) { + block = CMD_BLOCK_BAR; + } else { + sway_log(L_ERROR, "Invalid block '%s'", line); + } + break; + + case CMD_BLOCK_BAR_COLORS: + if (block == CMD_BLOCK_BAR) { + block = CMD_BLOCK_BAR_COLORS; + } else { + sway_log(L_ERROR, "Invalid block '%s'", line); + } + break; + + case CMD_BLOCK_COMMANDS: + if (block == CMD_BLOCK_END) { + block = CMD_BLOCK_COMMANDS; + } else { + sway_log(L_ERROR, "Invalid block '%s'", line); + } + break; + + case CMD_BLOCK_IPC: + if (block == CMD_BLOCK_END) { + block = CMD_BLOCK_IPC; + } else { + sway_log(L_ERROR, "Invalid block '%s'", line); + } + break; + + case CMD_BLOCK_IPC_EVENTS: + if (block == CMD_BLOCK_IPC) { + block = CMD_BLOCK_IPC_EVENTS; + } else { + sway_log(L_ERROR, "Invalid block '%s'", line); + } + break; + + case CMD_BLOCK_END: + switch(block) { + case CMD_BLOCK_MODE: + sway_log(L_DEBUG, "End of mode block"); + config->current_mode = config->modes->items[0]; + block = CMD_BLOCK_END; + break; + + case CMD_BLOCK_INPUT: + sway_log(L_DEBUG, "End of input block"); + // TODO: input + //current_input_config = NULL; + block = CMD_BLOCK_END; + break; + + case CMD_BLOCK_BAR: + sway_log(L_DEBUG, "End of bar block"); + config->current_bar = NULL; + block = CMD_BLOCK_END; + break; + + case CMD_BLOCK_BAR_COLORS: + sway_log(L_DEBUG, "End of bar colors block"); + block = CMD_BLOCK_BAR; + break; + + case CMD_BLOCK_COMMANDS: + sway_log(L_DEBUG, "End of commands block"); + block = CMD_BLOCK_END; + break; + + case CMD_BLOCK_IPC: + sway_log(L_DEBUG, "End of IPC block"); + block = CMD_BLOCK_END; + break; + + case CMD_BLOCK_IPC_EVENTS: + sway_log(L_DEBUG, "End of IPC events block"); + block = CMD_BLOCK_IPC; + break; + + case CMD_BLOCK_END: + sway_log(L_ERROR, "Unmatched }"); + break; + + default:; + } + default:; + } + free(line); + free_cmd_results(res); + } + + return success; +} + +char *do_var_replacement(char *str) { + int i; + char *find = str; + while ((find = strchr(find, '$'))) { + // Skip if escaped. + if (find > str && find[-1] == '\\') { + if (find == str + 1 || !(find > str + 1 && find[-2] == '\\')) { + ++find; + continue; + } + } + // Find matching variable + for (i = 0; i < config->symbols->length; ++i) { + struct sway_variable *var = config->symbols->items[i]; + int vnlen = strlen(var->name); + if (strncmp(find, var->name, vnlen) == 0) { + int vvlen = strlen(var->value); + char *newstr = malloc(strlen(str) - vnlen + vvlen + 1); + if (!newstr) { + sway_log(L_ERROR, + "Unable to allocate replacement during variable expansion"); + break; + } + char *newptr = newstr; + int offset = find - str; + strncpy(newptr, str, offset); + newptr += offset; + strncpy(newptr, var->value, vvlen); + newptr += vvlen; + strcpy(newptr, find + vnlen); + free(str); + str = newstr; + find = str + offset + vvlen; + break; + } + } + if (i == config->symbols->length) { + ++find; + } + } + return str; +} diff --git a/sway/main.c b/sway/main.c index bc107309..bc843591 100644 --- a/sway/main.c +++ b/sway/main.c @@ -15,6 +15,7 @@ #include #include #endif +#include "sway/config.h" #include "sway/server.h" #include "sway/layout.h" #include "sway/ipc-server.h" @@ -388,14 +389,14 @@ int main(int argc, char **argv) { ipc_init(&server); log_env(); - //if (validate) { - // bool valid = load_main_config(config_path, false); - // return valid ? 0 : 1; - //} + if (validate) { + bool valid = load_main_config(config_path, false); + return valid ? 0 : 1; + } - //if (!load_main_config(config_path, false)) { - // sway_terminate(EXIT_FAILURE); - //} + if (!load_main_config(config_path, false)) { + sway_terminate(EXIT_FAILURE); + } if (config_path) { free(config_path); @@ -411,9 +412,9 @@ int main(int argc, char **argv) { ipc_terminate(); - //if (config) { - // free_config(config); - //} + if (config) { + free_config(config); + } return exit_value; } diff --git a/sway/meson.build b/sway/meson.build index b224f15f..84f48137 100644 --- a/sway/meson.build +++ b/sway/meson.build @@ -5,12 +5,14 @@ sway_sources = files( 'commands/exit.c', 'commands/exec.c', 'commands/exec_always.c', + 'config.c', 'ipc-json.c', 'ipc-server.c', 'desktop/output.c', 'desktop/wl_shell.c', 'desktop/xdg_shell_v6.c', 'desktop/xwayland.c', + 'security.c', 'tree/container.c', 'tree/layout.c', 'tree/workspace.c', diff --git a/sway/security.c b/sway/security.c new file mode 100644 index 00000000..cc0d3f66 --- /dev/null +++ b/sway/security.c @@ -0,0 +1,18 @@ +#define _XOPEN_SOURCE 700 +#include +#include +#include "sway/security.h" + +struct command_policy *alloc_command_policy(const char *command) { + struct command_policy *policy = malloc(sizeof(struct command_policy)); + if (!policy) { + return NULL; + } + policy->command = strdup(command); + if (!policy->command) { + free(policy); + return NULL; + } + policy->context = 0; + return policy; +}