chanserv/authlib.c

   1 /* authlib.c */
   2
   3 #include "authlib.h"
   4 #include "chanserv.h"
   5 #include "../lib/irc_string.h"
   6
   7 #include <string.h>
   8 #include <ctype.h>
   9 #include <sys/types.h>
  10 #include <regex.h>
  11
  12 regex_t preg;
  13
  14 int csa_initregex() {
  15   if (regcomp(&preg, VALID_EMAIL, REG_EXTENDED | REG_NOSUB | REG_ICASE))
  16     return(1);
  17   else
  18     return(0);
  19 }
  20
  21 void csa_freeregex() {
  22   regfree(&preg);
  23 }
  24
  25 /*
  26  * use regex matching to determine if it's a valid eboy or not
  27  */
  28 int csa_checkeboy(nick *sender, char *eboy)
  29 {
  30   int i, len;
  31
  32   len = (((strlen(eboy)) < (EMAILLEN)) ? (strlen(eboy)) : (EMAILLEN));
  33   if (len <= 4) {
  34     if (sender)
  35       chanservstdmessage(sender, QM_EMAILTOOSHORT, eboy);
  36     return (1);
  37   }
  38
  39   if (strstr(&eboy[1], "@") == NULL) {
  40     if (sender)
  41       chanservstdmessage(sender, QM_EMAILNOAT, eboy);
  42     return (1);
  43   }
  44
  45   if (eboy[len - 1] == '@') {
  46     if (sender)
  47       chanservstdmessage(sender, QM_EMAILATEND, eboy);
  48     return (1);
  49   }
  50
  51   for (i = 0; i < len; i++) {
  52     if (!isalpha(eboy[i]) && !isdigit(eboy[i])
  53         && !(eboy[i] == '@') && !(eboy[i] == '.')
  54         && !(eboy[i] == '_') && !(eboy[i] == '-')) {
  55       if (sender)
  56         chanservstdmessage(sender, QM_EMAILINVCHR, eboy);
  57       return (1);
  58     }
  59   }
  60
  61   /* catch some real lame attempts */
  62   if (!ircd_strncmp("user@mymailhost.xx", eboy, len) || !ircd_strncmp("info@quakenet.org", eboy, len)
  63       || !ircd_strncmp("user@mymail.xx", eboy, len) || !ircd_strncmp("user@mail.cc", eboy, len)
  64       || !ircd_strncmp("user@host.com", eboy, len) || !ircd_strncmp("Jackie@your.isp.com", eboy, len)
  65       || !ircd_strncmp("QBot@QuakeNet.org", eboy, len)) {
  66     if (sender)
  67       chanservstdmessage(sender, QM_NOTYOUREMAIL, eboy);
  68     return (1);
  69   }
  70
  71   if (regexec(&preg, eboy, (size_t) 0, NULL, 0)) {
  72     if (sender)
  73       chanservstdmessage(sender, QM_INVALIDEMAIL, eboy);
  74     return (1);
  75   }
  76
  77   return (0);
  78 }
  79
  80 /*
  81  * create a random pw. code stolen from fox's O
  82  */
  83 void csa_createrandompw(char *pw, int n)
  84 {
  85   int i;
  86   char upwdchars[] = "ABCDEFGHIJKLMNPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz123456789-!";
  87
  88   for (i = 0; i < n; i++) {
  89     pw[i] = upwdchars[rand() % (sizeof(upwdchars) - 1)];
  90   }
  91   pw[n] = '\0';
  92 }