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-rw-r--r--src/modules/module-protocol-pulse/cmd.c136
1 files changed, 136 insertions, 0 deletions
diff --git a/src/modules/module-protocol-pulse/cmd.c b/src/modules/module-protocol-pulse/cmd.c
new file mode 100644
index 0000000..e8e6406
--- /dev/null
+++ b/src/modules/module-protocol-pulse/cmd.c
@@ -0,0 +1,136 @@
+/* PipeWire
+ *
+ * Copyright © 2022 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <spa/utils/json.h>
+
+#include <pipewire/utils.h>
+
+#include "module.h"
+#include "cmd.h"
+
+static const char WHITESPACE[] = " \t\n\r";
+
+static int do_load_module(struct impl *impl, char *args, const char *flags)
+{
+ int res, n;
+ struct module *module;
+ char *a[2] = { NULL };
+
+ n = pw_split_ip(args, WHITESPACE, 2, a);
+ if (n < 1) {
+ pw_log_info("load-module expects module name");
+ return -EINVAL;
+ }
+
+ module = module_create(impl, a[0], a[1]);
+ if (module == NULL)
+ return -errno;
+ if ((res = module_load(module)) < 0)
+ return res;
+
+ return res;
+}
+
+static int do_cmd(struct impl *impl, const char *cmd, char *args, const char *flags)
+{
+ int res = 0;
+ if (spa_streq(cmd, "load-module")) {
+ res = do_load_module(impl, args, flags);
+ } else {
+ pw_log_warn("ignoring unknown command `%s` with args `%s`",
+ cmd, args);
+ }
+ if (res < 0) {
+ if (flags && strstr(flags, "nofail")) {
+ pw_log_info("nofail command %s %s: %s",
+ cmd, args, spa_strerror(res));
+ res = 0;
+ } else {
+ pw_log_error("can't run command %s %s: %s",
+ cmd, args, spa_strerror(res));
+ }
+ }
+ return res;
+}
+
+/*
+ * pulse.cmd = [
+ * { cmd = <command> [ args = "<arguments>" ] }
+ * ...
+ * ]
+ */
+static int parse_cmd(void *user_data, const char *location,
+ const char *section, const char *str, size_t len)
+{
+ struct impl *impl = user_data;
+ struct spa_json it[3];
+ char key[512], *s;
+ int res = 0;
+
+ s = strndup(str, len);
+ spa_json_init(&it[0], s, len);
+ if (spa_json_enter_array(&it[0], &it[1]) < 0) {
+ pw_log_error("config file error: pulse.cmd is not an array");
+ res = -EINVAL;
+ goto exit;
+ }
+
+ while (spa_json_enter_object(&it[1], &it[2]) > 0) {
+ char *cmd = NULL, *args = NULL, *flags = NULL;
+
+ while (spa_json_get_string(&it[2], key, sizeof(key)) > 0) {
+ const char *val;
+ int len;
+
+ if ((len = spa_json_next(&it[2], &val)) <= 0)
+ break;
+
+ if (spa_streq(key, "cmd")) {
+ cmd = (char*)val;
+ spa_json_parse_stringn(val, len, cmd, len+1);
+ } else if (spa_streq(key, "args")) {
+ args = (char*)val;
+ spa_json_parse_stringn(val, len, args, len+1);
+ } else if (spa_streq(key, "flags")) {
+ if (spa_json_is_container(val, len))
+ len = spa_json_container_len(&it[2], val, len);
+ flags = (char*)val;
+ spa_json_parse_stringn(val, len, flags, len+1);
+ }
+ }
+ if (cmd != NULL)
+ res = do_cmd(impl, cmd, args, flags);
+ if (res < 0)
+ break;
+ }
+exit:
+ free(s);
+ return res;
+}
+
+int cmd_run(struct impl *impl)
+{
+ return pw_context_conf_section_for_each(impl->context, "pulse.cmd",
+ parse_cmd, impl);
+}