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MINOR: sample: date converter takes HTTP date and output an UNIX timestamp

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The `date` converter takes an HTTP date in input, it could be either a
imf, rfc850 or asctime date. It will output an UNIX timestamp.
This commit is contained in:
William Lallemand 2024-06-14 09:38:14 +02:00
parent 937324d493
commit 5756f10cbc
2 changed files with 26 additions and 0 deletions
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8
doc/configuration.txt
View File

@ -19126,6 +19126,7 @@ crc32([avalanche]) binary integer
crc32c([avalanche]) binary integer
cut_crlf string string
da-csv-conv(prop[,prop*]) string string
date string integer
debug([prefix][,destination]) any same
-- keyword -------------------------------------+- input type + output type -
digest(algorithm) binary binary
@ -19486,6 +19487,13 @@ da-csv-conv(<prop>[,<prop>*])
default_backend servers
http-request set-header X-DeviceAtlas-Data %[req.fhdr(User-Agent),da-csv(primaryHardwareType,osName,osVersion,browserName,browserVersion,browserRenderingEngine)]
date
This converter is used to convert a date from an HTTP header. It can be an IMF
date, an ASCTIME date or a RFC850 date. It will output an UNIX timestamp.
Example:
http-request return lf-string "%[str('Sun, 06 Nov 1994 08:49:37 GMT'),date]\n" content-type text/plain
debug([<prefix][,<destination>])
This converter is used as debug tool. It takes a capture of the input sample
and sends it to event sink <destination>, which may designate a ring buffer

18
src/http_conv.c
View File

@ -33,6 +33,23 @@ static int smp_check_http_date_unit(struct arg *args, struct sample_conv *conv,
return smp_check_date_unit(args, err);
}
/* Take a string containing an HTTP date in IMF, RFC850 or ASCTIME
* and converts it into a integer epoch format
*/
static int sample_conv_http2epoch(const struct arg *args, struct sample *smp, void *private)
{
int res = 0;
struct tm tm = {};
smp->data.type = SMP_T_SINT;
res = parse_http_date(smp->data.u.str.area, smp->data.u.str.data, &tm);
smp->data.u.sint = my_timegm(&tm);
return res;
}
/* takes an UINT value on input supposed to represent the time since EPOCH,
* adds an optional offset found in args[0] and emits a string representing
* the date in RFC-1123/5322 format. If optional unit param in args[1] is
@ -435,6 +452,7 @@ static int smp_conv_res_capture(const struct arg *args, struct sample *smp, void
/* Note: must not be declared <const> as its list will be overwritten */
static struct sample_conv_kw_list sample_conv_kws = {ILH, {
{ "http_date", sample_conv_http_date, ARG2(0,SINT,STR), smp_check_http_date_unit, SMP_T_SINT, SMP_T_STR},
{ "date", sample_conv_http2epoch, 0, NULL, SMP_T_STR, SMP_T_SINT},
{ "language", sample_conv_q_preferred, ARG2(1,STR,STR), NULL, SMP_T_STR, SMP_T_STR},
{ "capture-req", smp_conv_req_capture, ARG1(1,SINT), NULL, SMP_T_STR, SMP_T_STR},
{ "capture-res", smp_conv_res_capture, ARG1(1,SINT), NULL, SMP_T_STR, SMP_T_STR},