void ipc_client_handle_command(struct ipc_client *client) {
if (!sway_assert(client != NULL, "client != NULL")) {
return;
}
char buf[client->payload_length + 1];
if (client->payload_length > 0)
{
ssize_t received = recv(client->fd, buf, client->payload_length, 0);
if (received == -1)
{
sway_log_errno(L_INFO, "Unable to receive payload from IPC client");
ipc_client_disconnect(client);
return;
}
}
switch (client->current_command) {
case IPC_COMMAND:
{
buf[client->payload_length] = '\0';
struct cmd_results *results = handle_command(buf);
const char *json = cmd_results_to_json(results);
char reply[256];
int length = snprintf(reply, sizeof(reply), "%s", json);
ipc_send_reply(client, reply, (uint32_t) length);
free_cmd_results(results);
break;
}
case IPC_SUBSCRIBE:
{
buf[client->payload_length] = '\0';
struct json_object *request = json_tokener_parse(buf);
if (request == NULL) {
ipc_send_reply(client, "{\"success\": false}", 18);
ipc_client_disconnect(client);
return;
}
// parse requested event types
for (int i = 0; i < json_object_array_length(request); i++) {
const char *event_type = json_object_get_string(json_object_array_get_idx(request, i));
if (strcmp(event_type, "workspace") == 0) {
client->subscribed_events |= IPC_GET_WORKSPACES;
}
else {
ipc_send_reply(client, "{\"success\": false}", 18);
ipc_client_disconnect(client);
json_object_put(request);
return;
}
}
json_object_put(request);
ipc_send_reply(client, "{\"success\": true}", 17);
break;
}
case IPC_GET_WORKSPACES:
{
json_object *workspaces = json_object_new_array();
container_map(&root_container, ipc_get_workspaces_callback, workspaces);
const char *json_string = json_object_to_json_string(workspaces);
ipc_send_reply(client, json_string, (uint32_t) strlen(json_string));
json_object_put(workspaces); // free
break;
}
case IPC_GET_OUTPUTS:
{
json_object *outputs = json_object_new_array();
container_map(&root_container, ipc_get_outputs_callback, outputs);
const char *json_string = json_object_to_json_string(outputs);
ipc_send_reply(client, json_string, (uint32_t) strlen(json_string));
json_object_put(outputs); // free
break;
}
case IPC_GET_VERSION:
{
#if defined SWAY_GIT_VERSION && defined SWAY_GIT_BRANCH && defined SWAY_VERSION_DATE
char *full_version = calloc(strlen(SWAY_GIT_VERSION) + strlen(SWAY_GIT_BRANCH) + strlen(SWAY_VERSION_DATE) + 20, 1);
strcat(full_version, SWAY_GIT_VERSION);
strcat(full_version, " (");
strcat(full_version, SWAY_VERSION_DATE);
strcat(full_version, ", branch \"");
strcat(full_version, SWAY_GIT_BRANCH);
strcat(full_version, "\")");
json_object *json = json_object_new_object();
json_object_object_add(json, "human_readable", json_object_new_string(full_version));
// Todo once we actually release a version
json_object_object_add(json, "major", json_object_new_int(0));
json_object_object_add(json, "minor", json_object_new_int(0));
json_object_object_add(json, "patch", json_object_new_int(1));
#else
json_object_object_add(json, "human_readable", json_object_new_string("version not found"));
json_object_object_add(json, "major", json_object_new_int(0));
json_object_object_add(json, "minor", json_object_new_int(0));
json_object_object_add(json, "patch", json_object_new_int(0));
#endif
const char *json_string = json_object_to_json_string(json);
ipc_send_reply(client, json_string, (uint32_t) strlen(json_string));
json_object_put(json); // free
free(full_version);
break;
}
default:
sway_log(L_INFO, "Unknown IPC command type %i", client->current_command);
ipc_client_disconnect(client);
return;
}
client->payload_length = 0;
}
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");
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;
}
void ipc_client_handle_command(struct ipc_client *client) {
if (!sway_assert(client != NULL, "client != NULL")) {
return;
}
char *buf = malloc(client->payload_length + 1);
if (!buf) {
sway_log_errno(L_INFO, "Out of memory");
ipc_client_disconnect(client);
return;
}
if (client->payload_length > 0)
{
ssize_t received = recv(client->fd, buf, client->payload_length, 0);
if (received == -1)
{
sway_log_errno(L_INFO, "Unable to receive payload from IPC client");
ipc_client_disconnect(client);
free(buf);
return;
}
}
buf[client->payload_length] = '\0';
const char *error_denied = "{ \"success\": false, \"error\": \"Permission denied\" }";
switch (client->current_command) {
case IPC_COMMAND:
{
if (!(config->ipc_policy & IPC_FEATURE_COMMAND)) {
goto exit_denied;
}
struct cmd_results *results = handle_command(buf, CONTEXT_IPC);
const char *json = cmd_results_to_json(results);
char reply[256];
int length = snprintf(reply, sizeof(reply), "%s", json);
ipc_send_reply(client, reply, (uint32_t) length);
free_cmd_results(results);
goto exit_cleanup;
}
case IPC_SUBSCRIBE:
{
struct json_object *request = json_tokener_parse(buf);
if (request == NULL) {
ipc_send_reply(client, "{\"success\": false}", 18);
sway_log_errno(L_INFO, "Failed to read request");
goto exit_cleanup;
}
// parse requested event types
for (int i = 0; i < json_object_array_length(request); i++) {
const char *event_type = json_object_get_string(json_object_array_get_idx(request, i));
if (strcmp(event_type, "workspace") == 0) {
client->subscribed_events |= event_mask(IPC_EVENT_WORKSPACE);
} else if (strcmp(event_type, "barconfig_update") == 0) {
client->subscribed_events |= event_mask(IPC_EVENT_BARCONFIG_UPDATE);
} else if (strcmp(event_type, "mode") == 0) {
client->subscribed_events |= event_mask(IPC_EVENT_MODE);
} else if (strcmp(event_type, "window") == 0) {
client->subscribed_events |= event_mask(IPC_EVENT_WINDOW);
} else if (strcmp(event_type, "modifier") == 0) {
client->subscribed_events |= event_mask(IPC_EVENT_MODIFIER);
} else if (strcmp(event_type, "binding") == 0) {
client->subscribed_events |= event_mask(IPC_EVENT_BINDING);
} else {
ipc_send_reply(client, "{\"success\": false}", 18);
json_object_put(request);
sway_log_errno(L_INFO, "Failed to parse request");
goto exit_cleanup;
}
}
json_object_put(request);
ipc_send_reply(client, "{\"success\": true}", 17);
goto exit_cleanup;
}
case IPC_GET_WORKSPACES:
{
if (!(config->ipc_policy & IPC_FEATURE_GET_WORKSPACES)) {
goto exit_denied;
}
json_object *workspaces = json_object_new_array();
container_map(&root_container, ipc_get_workspaces_callback, workspaces);
const char *json_string = json_object_to_json_string(workspaces);
ipc_send_reply(client, json_string, (uint32_t) strlen(json_string));
json_object_put(workspaces); // free
goto exit_cleanup;
}
case IPC_GET_INPUTS:
{
if (!(config->ipc_policy & IPC_FEATURE_GET_INPUTS)) {
goto exit_denied;
}
json_object *inputs = json_object_new_array();
if (input_devices) {
for(int i=0; i<input_devices->length; i++) {
struct libinput_device *device = input_devices->items[i];
char* identifier = libinput_dev_unique_id(device);
json_object *device_object = json_object_new_object();
json_object_object_add(device_object, "identifier", json_object_new_string(identifier));
json_object_array_add(inputs, device_object);
free(identifier);
}
}
const char *json_string = json_object_to_json_string(inputs);
ipc_send_reply(client, json_string, (uint32_t) strlen(json_string));
json_object_put(inputs);
goto exit_cleanup;
}
case IPC_GET_OUTPUTS:
{
if (!(config->ipc_policy & IPC_FEATURE_GET_OUTPUTS)) {
goto exit_denied;
}
json_object *outputs = json_object_new_array();
container_map(&root_container, ipc_get_outputs_callback, outputs);
const char *json_string = json_object_to_json_string(outputs);
ipc_send_reply(client, json_string, (uint32_t) strlen(json_string));
json_object_put(outputs); // free
goto exit_cleanup;
}
case IPC_GET_TREE:
{
if (!(config->ipc_policy & IPC_FEATURE_GET_TREE)) {
goto exit_denied;
}
json_object *tree = ipc_json_describe_container_recursive(&root_container);
const char *json_string = json_object_to_json_string(tree);
ipc_send_reply(client, json_string, (uint32_t) strlen(json_string));
json_object_put(tree);
goto exit_cleanup;
}
case IPC_GET_VERSION:
{
json_object *version = ipc_json_get_version();
const char *json_string = json_object_to_json_string(version);
ipc_send_reply(client, json_string, (uint32_t)strlen(json_string));
json_object_put(version); // free
goto exit_cleanup;
}
case IPC_SWAY_GET_PIXELS:
{
char response_header[9];
memset(response_header, 0, sizeof(response_header));
json_object *obj = json_tokener_parse(buf);
json_object *o, *x, *y, *w, *h;
json_object_object_get_ex(obj, "output", &o);
json_object_object_get_ex(obj, "x", &x);
json_object_object_get_ex(obj, "y", &y);
json_object_object_get_ex(obj, "w", &w);
json_object_object_get_ex(obj, "h", &h);
struct wlc_geometry g = {
.origin = {
.x = json_object_get_int(x),
.y = json_object_get_int(y)
},
.size = {
.w = json_object_get_int(w),
.h = json_object_get_int(h)
}
};
swayc_t *output = swayc_by_test(&root_container, output_by_name_test, (void *)json_object_get_string(o));
json_object_put(obj);
if (!output) {
sway_log(L_ERROR, "IPC GET_PIXELS request with unknown output name");
ipc_send_reply(client, response_header, sizeof(response_header));
goto exit_cleanup;
}
struct get_pixels_request *req = malloc(sizeof(struct get_pixels_request));
req->client = client;
req->output = output->handle;
req->geo = g;
list_add(ipc_get_pixel_requests, req);
wlc_output_schedule_render(output->handle);
goto exit_cleanup;
}
case IPC_GET_BAR_CONFIG:
{
if (!(config->ipc_policy & IPC_FEATURE_GET_BAR_CONFIG)) {
goto exit_denied;
}
if (!buf[0]) {
// Send list of configured bar IDs
json_object *bars = json_object_new_array();
int i;
for (i = 0; i < config->bars->length; ++i) {
struct bar_config *bar = config->bars->items[i];
json_object_array_add(bars, json_object_new_string(bar->id));
}
const char *json_string = json_object_to_json_string(bars);
ipc_send_reply(client, json_string, (uint32_t)strlen(json_string));
json_object_put(bars); // free
} else {
// Send particular bar's details
struct bar_config *bar = NULL;
int i;
for (i = 0; i < config->bars->length; ++i) {
bar = config->bars->items[i];
if (strcmp(buf, bar->id) == 0) {
break;
}
bar = NULL;
}
if (!bar) {
const char *error = "{ \"success\": false, \"error\": \"No bar with that ID\" }";
ipc_send_reply(client, error, (uint32_t)strlen(error));
goto exit_cleanup;
}
json_object *json = ipc_json_describe_bar_config(bar);
const char *json_string = json_object_to_json_string(json);
ipc_send_reply(client, json_string, (uint32_t)strlen(json_string));
json_object_put(json); // free
}
goto exit_cleanup;
}
default:
sway_log(L_INFO, "Unknown IPC command type %i", client->current_command);
goto exit_cleanup;
}