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/*
** Copyright 1998 - 2008 Double Precision, Inc.
** See COPYING for distribution information.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <stdlib.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "imaptoken.h"
#include "imapwrite.h"
#include "courierauth.h"
#include "courierauthsasl.h"
#include "courierauthdebug.h"
extern int main_argc;
extern char **main_argv;
extern int login_callback(struct authinfo *ainfo, void *dummy);
extern const char *imap_externalauth();
static char *send_auth_reply(const char *q, void *dummy)
{
struct imaptoken *tok;
char *p;
#if SMAP
const char *cp=getenv("PROTOCOL");
if (cp && strcmp(cp, "SMAP1") == 0)
writes("> ");
else
#endif
{
writes("+ ");
}
writes(q);
writes("\r\n");
writeflush();
read_timeout(SOCKET_TIMEOUT);
tok=nexttoken_nouc();
switch (tok->tokentype) {
case IT_ATOM:
case IT_NUMBER:
p=my_strdup(tok->tokenbuf);
break;
case IT_EOL:
p=my_strdup("");
break;
default:
return (0);
}
if (!p)
{
perror("malloc");
return (0);
}
if (nexttoken()->tokentype != IT_EOL)
{
free(p);
fprintf(stderr, "Invalid SASL response\n");
return (0);
}
read_eol();
return (p);
}
int authenticate(const char *tag, char *methodbuf, int methodbuflen)
{
struct imaptoken *tok=nexttoken();
char *authmethod;
char *initreply=0;
char *authtype, *authdata;
char authservice[40];
char *p ;
int rc;
switch (tok->tokentype) {
case IT_ATOM:
case IT_QUOTED_STRING:
break;
default:
return (0);
}
authmethod=my_strdup(tok->tokenbuf);
if (methodbuf)
snprintf(methodbuf, methodbuflen, "%s", authmethod);
tok=nexttoken_nouc();
if (tok->tokentype != IT_EOL)
{
switch (tok->tokentype) {
case IT_ATOM:
case IT_NUMBER:
break;
default:
return (0);
}
initreply=my_strdup(tok->tokenbuf);
if (strcmp(initreply, "=") == 0)
*initreply=0;
tok=nexttoken_nouc();
}
if (tok->tokentype != IT_EOL) return (0);
read_eol();
if ((rc = auth_sasl_ex(authmethod, initreply, imap_externalauth(),
&send_auth_reply, NULL,
&authtype, &authdata)) != 0)
{
free(authmethod);
if (initreply)
free(initreply);
return (rc);
}
free(authmethod);
if (initreply)
free(initreply);
strcat(strcpy(authservice, "AUTHSERVICE"),
getenv("TCPLOCALPORT"));
p=getenv(authservice);
if (!p || !*p)
p="imap";
rc=auth_generic_meta(NULL, p, authtype, authdata,
login_callback, (void *)tag);
free(authtype);
free(authdata);
return (rc);
}
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