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MINOR: sample: Add b64dec sample converter

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Add "b64dec" as a new converter which can be used to decode a base64
encoded string into its binary representation. It performs the inverse
operation of the "base64" converter.
This commit is contained in:
Holger Just 2017-05-06 00:56:53 +02:00 committed by Willy Tarreau
parent 64920538fc
commit 1bfc24ba03
2 changed files with 22 additions and 0 deletions
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4
doc/configuration.txt
View File

@ -12410,6 +12410,10 @@ and(<value>)
This prefix is followed by a name. The separator is a '.'. The name may only
contain characters 'a-z', 'A-Z', '0-9', '.' and '_'.
b64dec
Converts (decodes) a base64 encoded input string to its binary
representation. It performs the inverse operation of base64().
base64
Converts a binary input sample to a base64 string. It is used to log or
transfer binary content in a way that can be reliably transferred (eg:

18
src/sample.c
View File

@ -1464,6 +1464,23 @@ static int sample_conv_debug(const struct arg *arg_p, struct sample *smp, void *
}
#endif
static int sample_conv_base642bin(const struct arg *arg_p, struct sample *smp, void *private)
{
struct chunk *trash = get_trash_chunk();
int bin_len;
trash->len = 0;
bin_len = base64dec(smp->data.u.str.str, smp->data.u.str.len, trash->str, trash->size);
if (bin_len < 0)
return 0;
trash->len = bin_len;
smp->data.u.str = *trash;
smp->data.type = SMP_T_BIN;
smp->flags &= ~SMP_F_CONST;
return 1;
}
static int sample_conv_bin2base64(const struct arg *arg_p, struct sample *smp, void *private)
{
struct chunk *trash = get_trash_chunk();
@ -2714,6 +2731,7 @@ static struct sample_conv_kw_list sample_conv_kws = {ILH, {
{ "debug", sample_conv_debug, 0, NULL, SMP_T_ANY, SMP_T_ANY },
#endif
{ "b64dec", sample_conv_base642bin,0, NULL, SMP_T_STR, SMP_T_BIN },
{ "base64", sample_conv_bin2base64,0, NULL, SMP_T_BIN, SMP_T_STR },
{ "upper", sample_conv_str2upper, 0, NULL, SMP_T_STR, SMP_T_STR },
{ "lower", sample_conv_str2lower, 0, NULL, SMP_T_STR, SMP_T_STR },