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pulse-server: move quirks to a json blob

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Make the quirks table as a json blob so that we can move it
out when we need to.
This commit is contained in:
Wim Taymans 2021-06-30 18:10:41 +02:00
parent 900cb596d3
commit 64a25110dc
1 changed files with 99 additions and 11 deletions
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110
src/modules/module-protocol-pulse/quirks.c
View file

@ -22,21 +22,109 @@
* DEALINGS IN THE SOFTWARE. * DEALINGS IN THE SOFTWARE.
*/ */
#include "quirks.h" #include <regex.h>
#include <spa/utils/json.h>
#include <pipewire/properties.h> #include <pipewire/properties.h>
int client_update_quirks(struct client *client) #include "quirks.h"
{
const char *str;
if ((str = pw_properties_get(client->props, "application.process.binary")) != NULL && #define QUOTE(...) #__VA_ARGS__
spa_streq(str, "teams")) {
client->quirks |= QUIRK_FORCE_S16_FORMAT; static const char quirks_rules[] =
} "# List of quirks"
if ((str = pw_properties_get(client->props, "application.process.binary")) != NULL && "#"
spa_streq(str, "firefox")) { "# All key/value pairs need to match before the quirks are applied."
client->quirks |= QUIRK_REMOVE_CAPTURE_DONT_MOVE; "#"
"# Possible quirks:"
"# force-s16-info forces sink and source info as S16 format"
"# remove-capture-dont-move removes the capture DONT_MOVE flag"
"#\n"
"["
" { application.process.binary = teams, quirks = [ force-s16-info ] },"
" { application.process.binary = firefox, quirks = [ remove-capture-dont-move ] },"
"]";
static uint64_t parse_quirks(const char *str)
{
static const struct { const char *key; uint64_t value; } quirk_keys[] = {
{ "force-s16-info", QUIRK_FORCE_S16_FORMAT },
{ "remove-capture-dont-move", QUIRK_REMOVE_CAPTURE_DONT_MOVE },
};
size_t i;
for (i = 0; i < SPA_N_ELEMENTS(quirk_keys); ++i) {
if (spa_streq(str, quirk_keys[i].key))
return quirk_keys[i].value;
} }
return 0; return 0;
} }
static int match(const char *rules, struct spa_dict *dict, uint64_t *quirks)
{
struct spa_json rules_json = SPA_JSON_INIT(rules, strlen(rules));
struct spa_json rules_arr, it[2];
if (spa_json_enter_array(&rules_json, &rules_arr) <= 0)
return -EINVAL;
while (spa_json_enter_object(&rules_arr, &it[0]) > 0) {
char key[256];
int match = true;
uint64_t quirks_cur = 0;
while (spa_json_get_string(&it[0], key, sizeof(key)-1) > 0) {
char val[4096];
const char *str, *value;
int len;
bool success = false;
if (spa_streq(key, "quirks")) {
if (spa_json_enter_array(&it[0], &it[1]) > 0) {
while (spa_json_get_string(&it[1], val, sizeof(val)-1) > 0)
quirks_cur |= parse_quirks(val);
}
continue;
}
if ((len = spa_json_next(&it[0], &value)) <= 0)
break;
if (spa_json_is_null(value, len)) {
value = NULL;
} else {
spa_json_parse_string(value, SPA_MIN(len, (int)sizeof(val)-1), val);
value = val;
}
str = spa_dict_lookup(dict, key);
if (value == NULL) {
success = str == NULL;
} else if (str != NULL) {
if (value[0] == '~') {
regex_t r;
if (regcomp(&r, value+1, REG_EXTENDED | REG_NOSUB) == 0) {
if (regexec(&r, str, 0, NULL, 0) == 0)
success = true;
regfree(&r);
}
} else if (spa_streq(str, value)) {
success = true;
}
}
if (!success) {
match = false;
break;
}
}
if (match) {
*quirks = quirks_cur;
return 1;
}
}
return 0;
}
int client_update_quirks(struct client *client)
{
return match(quirks_rules, &client->props->dict, &client->quirks);
}