chanserv/authcmds/challenge.c

   1 /*
   2  * CMDNAME: challenge
   3  * CMDLEVEL: QCMD_SECURE | QCMD_NOTAUTHED
   4  * CMDARGS: 0
   5  * CMDDESC: Returns a challenge for use in challengeauth.
   6  * CMDFUNC: csa_dochallenge
   7  * CMDPROTO: int csa_dochallenge(void *source, int cargc, char **cargv);
   8  * CMDHELP: Usage: challenge
   9  * CMDHELP: Supplies you with a challenge and a list of algorithms accepted
  10  * CMDHELP: for challenge response authentication, see CHALLENGEAUTH help
  11  * CMDHELP: for more details.
  12  */
  13
  14 #include "../chanserv.h"
  15 #include "../authlib.h"
  16 #include "../../lib/irc_string.h"
  17 #include <stdio.h>
  18 #include <string.h>
  19 #include <time.h>
  20
  21 int csa_dochallenge(void *source, int cargc, char **cargv) {
  22   nick *sender=source;
  23   activeuser* aup;
  24   time_t t;
  25
  26   if (!(aup=getactiveuserfromnick(sender)))
  27     return CMD_ERROR;
  28
  29   t = time(NULL);
  30   if(t > aup->entropyttl) {
  31     cs_getrandbytes(aup->entropy,ENTROPYLEN);
  32     aup->entropyttl=t + 30;
  33   }
  34
  35   chanservsendmessage(sender,"CHALLENGE %s %s",cs_calcchallenge(aup->entropy),cs_cralgorithmlist());
  36   cs_log(sender,"CHALLENGE");
  37
  38   return CMD_OK;
  39 }