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rc-status-page

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rc-status-page.c (2739B)

    

  1. // rc-status-page: Basic HTML status page based on OpenRC
  2. // Copyright © 2022 Haelwenn (lanodan) Monnier <contact+rc-status-page@hacktivis.me>
  3. // SPDX-License-Identifier: BSD-2-Clause
  5. #include <sys/queue.h> /* TAILQ_FOREACH() */
  6. #include <rc.h> /* rc_ / RC_ */
  7. #include <stdlib.h> /* printf */
  8. #include <errno.h> /* errno */
  10. #include <time.h> /* time(), gmtime(), strftime() */
  12. static RC_DEPTREE *deptree;
  13. static RC_STRINGLIST *types;
  14. RC_STRINGLIST *levels, *services;
  16. static void
  17. print_service(const char *service)
  18. {
  19. 	RC_SERVICE state = rc_service_state(service);
  20. 	char *status;
  22. 	if(state & RC_SERVICE_STOPPING) {
  23. 		status = "stopping";
  24. 	} else if(state & RC_SERVICE_STARTING) {
  25. 		status = "starting";
  26. 	} else if(state & RC_SERVICE_INACTIVE) {
  27. 		status = "inactive";
  28. 	} else if(state & RC_SERVICE_SCHEDULED) {
  29. 		status = "scheduled";
  30. 	} else if(state & RC_SERVICE_STARTED) {
  31. 		errno = 0;
  32. 		if (rc_service_daemons_crashed(service) && errno != EACCES) {
  33. 			status = "crashed";
  34. 		} else {
  35. 			status = "started";
  36. 		}
  37. 	} else {
  38. 		status = "stopped";
  39. 	}
  41. 	printf("\t<dt class=\"service-name\">%s</dt><dd class=\"service-%s\">%s</dd>\n", service, status, status);
  42. }
  44. static void
  45. print_services(const char *runlevel, RC_STRINGLIST *svcs)
  46. {
  47. 	RC_STRINGLIST *l = NULL;
  48. 	RC_STRING *s;
  49. 	char *r = NULL;
  51. 	if (!svcs) { return; }
  52. 	if (!deptree) { deptree = rc_deptree_load(); }
  53. 	if (!types) {
  54. 		types = rc_stringlist_new();
  55. 		rc_stringlist_add(types, "ineed");
  56. 		rc_stringlist_add(types, "iuse");
  57. 		rc_stringlist_add(types, "iafter");
  58. 	}
  59. 	if (!runlevel) { r = rc_runlevel_get(); }
  61. 	l = rc_deptree_depends(deptree, types, svcs, r ? r : runlevel, RC_DEP_STRICT | RC_DEP_TRACE | RC_DEP_START);
  62. 	free(r);
  63. 	if (!l) return;
  65. 	printf("<dl class=\"services\">\n");
  66. 	TAILQ_FOREACH(s, l, entries) {
  67. 		if (!rc_stringlist_find(svcs, s->value)) continue;
  68. 		if (!runlevel || rc_service_in_runlevel(s->value, runlevel)) print_service(s->value);
  69. 	}
  70. 	rc_stringlist_free(l);
  71. 	printf("</dl>\n");
  72. }
  74. int
  75. main() {
  76. 	RC_STRING *l;
  77. 	char timestamp[BUFSIZ];
  78. 	time_t now = time(NULL);
  79. 	struct tm *tm = gmtime(&now);
  80. 	static char *title = "Status page of hacktivis.me";
  82. 	strftime(timestamp, sizeof(timestamp), "%FT%TZ", tm);
  84. 	levels = rc_stringlist_new();
  85. 	rc_stringlist_add(levels, "hacktivism");
  87. 	printf("<html><head><link rel=stylesheet href=\"rc-status-page.css\"/><title>%s</title></head>\n", title);
  88. 	printf("<h1>%s</h1>\n", title);
  90. 	TAILQ_FOREACH(l, levels, entries) {
  91. 		services = rc_services_in_runlevel(l->value);
  92. 		print_services(l->value, services);
  93. 	}
  95. 	printf("<footer>Generated by <a href=\"https://hacktivis.me/git/rc-status-page\">rc-status-page</a> at %s</footer>", timestamp);
  97. 	printf("</body></html>\n");
  99. 	rc_stringlist_free(levels);
  100. 	return 0;
  101. }