void priority_handle_request (flux_t *h, struct queue *queue,
struct event_ctx *event_ctx,
const flux_msg_t *msg)
{
uint32_t userid;
uint32_t rolemask;
flux_jobid_t id;
struct job *job;
int priority;
const char *errstr = NULL;
if (flux_request_unpack (msg, NULL, "{s:I s:i}",
"id", &id,
"priority", &priority) < 0
|| flux_msg_get_userid (msg, &userid) < 0
|| flux_msg_get_rolemask (msg, &rolemask) < 0)
goto error;
if (priority < FLUX_JOB_PRIORITY_MIN || priority > FLUX_JOB_PRIORITY_MAX) {
errstr = "priority value is out of range";
errno = EINVAL;
goto error;
}
if (!(job = queue_lookup_by_id (queue, id))) {
errstr = "unknown job";
goto error;
}
/* Security: guests can only adjust jobs that they submitted.
*/
if (!(rolemask & FLUX_ROLE_OWNER) && userid != job->userid) {
errstr = "guests can only reprioritize their own jobs";
errno = EPERM;
goto error;
}
/* Security: guests can only reduce priority, or increase up to default.
*/
if (!(rolemask & FLUX_ROLE_OWNER)
&& priority > MAXOF (FLUX_JOB_PRIORITY_DEFAULT, job->priority)) {
errstr = "guests can only adjust priority <= default";
errno = EPERM;
goto error;
}
/* Post event, change job's queue position, and respond.
*/
if (event_job_post_pack (event_ctx, job,
"priority",
"{ s:i s:i }",
"userid", userid,
"priority", priority) < 0)
goto error;
queue_reorder (queue, job, job->queue_handle);
if (flux_respond (h, msg, NULL) < 0)
flux_log_error (h, "%s: flux_respond", __FUNCTION__);
return;
error:
if (flux_respond_error (h, msg, errno, errstr) < 0)
flux_log_error (h, "%s: flux_respond_error", __FUNCTION__);
}
static void ping_request_cb (flux_t *h, flux_msg_handler_t *mh,
const flux_msg_t *msg, void *arg)
{
const char *json_str;
char *route_str = NULL;
char *full_route_str = NULL;
char *resp_str = NULL;
uint32_t rank, userid, rolemask;
if (flux_request_decode (msg, NULL, &json_str) < 0)
goto error;
if (flux_msg_get_rolemask (msg, &rolemask) < 0)
goto error;
if (flux_msg_get_userid (msg, &userid) < 0)
goto error;
if (!(route_str = flux_msg_get_route_string (msg)))
goto error;
if (flux_get_rank (h, &rank) < 0)
goto error;
if (asprintf (&full_route_str, "%s!%u", route_str, rank) < 0) {
errno = ENOMEM;
goto error;
}
if (!(resp_str = make_json_response_payload (json_str, full_route_str,
userid, rolemask))) {
goto error;
}
if (flux_respond (h, msg, resp_str) < 0)
flux_log_error (h, "%s: flux_respond", __FUNCTION__);
free (route_str);
free (full_route_str);
free (resp_str);
return;
error:
if (flux_respond_error (h, msg, errno, NULL) < 0)
flux_log_error (h, "%s: flux_respond_error", __FUNCTION__);
free (route_str);
free (full_route_str);
free (resp_str);
}
void pub_cb (flux_t *h, flux_msg_handler_t *mh,
const flux_msg_t *msg, void *arg)
{
struct publisher *pub = arg;
const char *topic;
const char *payload = NULL; // optional
int flags;
uint32_t rolemask, userid;
flux_msg_t *event = NULL;
if (flux_request_unpack (msg, NULL, "{s:s s:i s?:s}",
"topic", &topic,
"flags", &flags,
"payload", &payload) < 0)
goto error;
if ((flags & ~(FLUX_MSGFLAG_PRIVATE)) != 0) {
errno = EPROTO;
goto error;
}
if (flux_msg_get_rolemask (msg, &rolemask) < 0)
goto error;
if (flux_msg_get_userid (msg, &userid) < 0)
goto error;
if (!(event = encode_event (topic, flags, rolemask, userid,
++pub->seq, payload)))
goto error_restore_seq;
send_event (pub, event);
if (flux_respond_pack (h, msg, "{s:i}", "seq", pub->seq) < 0)
flux_log_error (h, "%s: flux_respond", __FUNCTION__);
flux_msg_destroy (event);
return;
error_restore_seq:
pub->seq--;
error:
if (flux_respond (h, msg, errno, NULL) < 0)
flux_log_error (h, "%s: flux_respond", __FUNCTION__);
flux_msg_destroy (event);
}