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108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
#include "notify.h"
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#define LOG_MODULE "notify"
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#define LOG_ENABLE_DBG 0
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#include "log.h"
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#include "config.h"
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#include "spawn.h"
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#include "xmalloc.h"
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void
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notify_notify(const struct terminal *term, const char *title, const char *body)
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{
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LOG_DBG("notify: title=\"%s\", msg=\"%s\"", title, msg);
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if (term->kbd_focus) {
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/* No notifications while we’re focused */
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return;
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}
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if (title == NULL || body == NULL)
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return;
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if (term->conf->notify.argv == NULL)
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return;
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size_t argv_size = 0;
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for (; term->conf->notify.argv[argv_size] != NULL; argv_size++)
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;
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#define append(s, n) \
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do { \
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expanded = xrealloc(expanded, len + (n) + 1); \
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memcpy(&expanded[len], s, n); \
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len += n; \
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expanded[len] = '\0'; \
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} while (0)
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char **argv = malloc((argv_size + 1) * sizeof(argv[0]));
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/* Expand ${title} and ${body} */
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for (size_t i = 0; i < argv_size; i++) {
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size_t len = 0;
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char *expanded = NULL;
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char *start = NULL;
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char *last_end = term->conf->notify.argv[i];
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while ((start = strstr(last_end, "${")) != NULL) {
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/* Append everything from the last template's end to this
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* one's beginning */
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append(last_end, start - last_end);
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/* Find end of template */
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start += 2;
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char *end = strstr(start, "}");
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if (end == NULL) {
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/* Ensure final append() copies the unclosed '${' */
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last_end = start - 2;
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LOG_WARN("notify: unclosed template: %s", last_end);
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break;
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}
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/* Expand template */
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if (strncmp(start, "title", end - start) == 0)
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append(title, strlen(title));
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else if (strncmp(start, "body", end - start) == 0)
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append(body, strlen(body));
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else {
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/* Unrecognized template - append it as-is */
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start -= 2;
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append(start, end + 1 - start);
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LOG_WARN("notify: unrecognized template: %.*s",
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(int)(end + 1 - start), start);
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}
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last_end = end + 1;;
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}
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append(last_end, term->conf->notify.argv[i] + strlen(term->conf->notify.argv[i]) - last_end);
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argv[i] = expanded;
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}
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argv[argv_size] = NULL;
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#undef append
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LOG_DBG("notify command:");
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for (size_t i = 0; i < argv_size; i++)
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LOG_DBG(" argv[%zu] = \"%s\"", i, argv[i]);
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/* Redirect stdin to /dev/null, but ignore failure to open */
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int devnull = open("/dev/null", O_RDONLY);
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spawn(term->reaper, NULL, argv, devnull, -1, -1);
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if (devnull >= 0)
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close(devnull);
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for (size_t i = 0; i < argv_size; i++)
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free(argv[i]);
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free(argv);
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}
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