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/*
* decode_imap.c
*
* Internet Mail Access Protocol.
*
* Copyright (c) 2000 Dug Song <dugsong@monkey.org>
*
* $Id: decode_imap.c,v 1.5 2001/03/15 08:33:00 dugsong Exp $
*/
#include "config.h"
#include <sys/types.h>
#include <stdio.h>
#include <string.h>
#include "base64.h"
#include "decode.h"
#include "buf.h"
extern struct _dc_meta dc_meta;
int
decode_imap(u_char *buf, int len, u_char *obuf, int olen)
{
char *p;
char *ptr;
int need_more = 0;
enum {
NONE,
AUTHPLAIN,
AUTHMULTI,
USERPASS
} mode = NONE;
obuf[0] = '\0';
for (p = strtok(buf, "\r\n"); p != NULL; p = strtok(NULL, "\r\n")) {
if (need_more == 0) {
// skip ID
if ((ptr = strchr(p, ' ')) == NULL)
break;
p = ++ptr;
}
if (mode == NONE) {
if (strncasecmp(p, "AUTHENTICATE PLAIN", 18) == 0) {
mode = AUTHPLAIN;
need_more = 1;
continue;
} else if ((strncasecmp(p, "AUTHENTICATE ", 13) == 0) || (strncasecmp(p, "LOGIN {", 7) == 0)) {
strlcat(obuf, p, olen);
mode = AUTHMULTI;
need_more = 2;
continue;
} else if (strncasecmp(p, "LOGIN ", 6) == 0) {
mode = USERPASS; // FALL-THROUGH.
} else
continue;
}
if (mode == USERPASS) {
snprintf(obuf, olen, "%s\n", p + 6 /* 'LOGIN '*/);
break;
}
if (mode == AUTHPLAIN) {
char *u , *pass;
if (decode_authplain(p, &u, &pass) != 0)
break;
snprintf(obuf, olen, "%s %s\n", u, pass);
break;
}
if (need_more > 0) {
need_more--;
strlcat(obuf, p, olen);
if (need_more > 0)
continue;
strlcat(obuf, "\n", olen);
break;
}
break;
}
if (obuf[0] == '\0')
return 0;
dc_meta.is_hot = 1;
return (strlen(obuf));
}
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