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MINOR: http: sample fetch which returns unique-id 

This patch adds a sample fetch which returns the unique-id if it is
configured. If the unique-id is not yet generated, it build it. If
the unique-id is not configured, it returns none.
This commit is contained in:
Thierry Fournier 2016-03-29 17:23:51 +02:00 committed by Willy Tarreau
parent b912567020
commit f4011ddcf5
1 changed files with 22 additions and 1 deletions
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23
src/proto_http.c
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@ -4418,7 +4418,7 @@ int http_process_request(struct stream *s, struct channel *req, int an_bit)
/* add unique-id if "header-unique-id" is specified */
if (!LIST_ISEMPTY(&sess->fe->format_unique_id)) {
if (!LIST_ISEMPTY(&sess->fe->format_unique_id) && !s->unique_id) {
if ((s->unique_id = pool_alloc2(pool2_uniqueid)) == NULL)
goto return_bad_req;
s->unique_id[0] = '\0';
@ -10048,6 +10048,26 @@ smp_fetch_stcode(const struct arg *args, struct sample *smp, const char *kw, voi
return 1;
}
static int
smp_fetch_uniqueid(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (LIST_ISEMPTY(&smp->sess->fe->format_unique_id))
return 0;
if (!smp->strm->unique_id) {
if ((smp->strm->unique_id = pool_alloc2(pool2_uniqueid)) == NULL)
return 0;
smp->strm->unique_id[0] = '\0';
}
smp->data.u.str.len = build_logline(smp->strm, smp->strm->unique_id,
UNIQUEID_LEN, &smp->sess->fe->format_unique_id);
smp->data.type = SMP_T_STR;
smp->data.u.str.str = smp->strm->unique_id;
smp->flags = SMP_F_CONST;
return 1;
}
/* returns the longest available part of the body. This requires that the body
* has been waited for using http-buffer-request.
*/
@ -12779,6 +12799,7 @@ static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
{ "shdr_val", smp_fetch_hdr_val, ARG2(0,STR,SINT), val_hdr, SMP_T_SINT, SMP_USE_HRSHV },
{ "status", smp_fetch_stcode, 0, NULL, SMP_T_SINT, SMP_USE_HRSHP },
{ "uniqueid", smp_fetch_uniqueid, 0, NULL, SMP_T_STR, SMP_SRC_L4SRV },
{ "url", smp_fetch_url, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
{ "url32", smp_fetch_url32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
{ "url32+src", smp_fetch_url32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },