static gint smtp_auth_recv(SMTPSession *session, const gchar *msg)
{
gchar buf[MSGBUFSIZE];
switch (session->auth_type) {
case SMTPAUTH_LOGIN:
session->state = SMTP_AUTH_LOGIN_USER;
if (!strncmp(msg, "334 ", 4)) {
base64_encode(buf, session->user, strlen(session->user));
session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
buf);
log_print("ESMTP> [USERID]\n");
} else {
/* Server rejects AUTH */
session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
"*");
log_print("ESMTP> *\n");
}
break;
case SMTPAUTH_CRAM_MD5:
session->state = SMTP_AUTH_CRAM_MD5;
if (!strncmp(msg, "334 ", 4)) {
gchar *response;
gchar *response64;
gchar *challenge;
gint challengelen;
guchar hexdigest[33];
challenge = g_malloc(strlen(msg + 4) + 1);
challengelen = base64_decode(challenge, msg + 4, -1);
challenge[challengelen] = '\0';
log_print("ESMTP< [Decoded: %s]\n", challenge);
g_snprintf(buf, sizeof(buf), "%s", session->pass);
md5_hex_hmac(hexdigest, challenge, challengelen,
buf, strlen(session->pass));
g_free(challenge);
response = g_strdup_printf
("%s %s", session->user, hexdigest);
log_print("ESMTP> [Encoded: %s]\n", response);
response64 = g_malloc((strlen(response) + 3) * 2 + 1);
base64_encode(response64, response, strlen(response));
g_free(response);
session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
response64);
log_print("ESMTP> %s\n", response64);
g_free(response64);
} else {
/* Server rejects AUTH */
session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
"*");
log_print("ESMTP> *\n");
}
break;
case SMTPAUTH_DIGEST_MD5:
default:
/* stop smtp_auth when no correct authtype */
session_send_msg(SESSION(session), SESSION_MSG_NORMAL, "*");
log_print("ESMTP> *\n");
break;
}
return SM_OK;
}
void caldav_md5_hex_hmac(char *hexdigest,
const unsigned char* text, int text_len,
const unsigned char* key, int key_len) {
md5_hex_hmac(hexdigest, text, text_len, key, key_len);
}
static gint sieve_auth_recv(SieveSession *session, const gchar *msg)
{
gchar buf[MESSAGEBUFSIZE], *tmp;
switch (session->auth_type) {
case SIEVEAUTH_LOGIN:
session->state = SIEVE_AUTH_LOGIN_USER;
if (strstr(msg, "VXNlcm5hbWU6")) {
tmp = g_base64_encode(session->user, strlen(session->user));
g_snprintf(buf, sizeof(buf), "\"%s\"", tmp);
if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL, buf) < 0) {
g_free(tmp);
return SE_ERROR;
}
g_free(tmp);
log_print(LOG_PROTOCOL, "Sieve> [USERID]\n");
} else {
/* Server rejects AUTH */
if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
"\"*\"") < 0)
return SE_ERROR;
log_print(LOG_PROTOCOL, "Sieve> *\n");
}
break;
case SIEVEAUTH_CRAM_MD5:
session->state = SIEVE_AUTH_CRAM_MD5;
if (msg[0] == '"') {
gchar *response;
gchar *response64;
gchar *challenge, *tmp;
gsize challengelen;
guchar hexdigest[33];
tmp = g_base64_decode(msg + 1, &challengelen);
challenge = g_strndup(tmp, challengelen);
g_free(tmp);
log_print(LOG_PROTOCOL, "Sieve< [Decoded: %s]\n", challenge);
g_snprintf(buf, sizeof(buf), "%s", session->pass);
md5_hex_hmac(hexdigest, challenge, challengelen,
buf, strlen(session->pass));
g_free(challenge);
response = g_strdup_printf
("%s %s", session->user, hexdigest);
log_print(LOG_PROTOCOL, "Sieve> [Encoded: %s]\n", response);
response64 = g_base64_encode(response, strlen(response));
g_free(response);
response = g_strdup_printf("\"%s\"", response64);
g_free(response64);
if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
response) < 0) {
g_free(response);
return SE_ERROR;
}
log_print(LOG_PROTOCOL, "Sieve> %s\n", response);
g_free(response);
} else {
/* Server rejects AUTH */
if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
"\"*\"") < 0)
return SE_ERROR;
log_print(LOG_PROTOCOL, "Sieve> *\n");
}
break;
default:
/* stop sieve_auth when no correct authtype */
if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL, "*") < 0)
return SE_ERROR;
log_print(LOG_PROTOCOL, "Sieve> *\n");
break;
}
return SE_OK;
}
static gint smtp_auth_recv(SMTPSession *session, const gchar *msg)
{
gchar buf[MESSAGEBUFSIZE], *tmp;
switch (session->auth_type) {
case SMTPAUTH_LOGIN:
session->state = SMTP_AUTH_LOGIN_USER;
if (!strncmp(msg, "334 ", 4)) {
tmp = g_base64_encode(session->user, strlen(session->user));
if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
tmp) < 0) {
g_free(tmp);
return SM_ERROR;
}
g_free(tmp);
log_print(LOG_PROTOCOL, "ESMTP> [USERID]\n");
} else {
/* Server rejects AUTH */
if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
"*") < 0)
return SM_ERROR;
log_print(LOG_PROTOCOL, "ESMTP> *\n");
}
break;
case SMTPAUTH_CRAM_MD5:
session->state = SMTP_AUTH_CRAM_MD5;
if (!strncmp(msg, "334 ", 4)) {
gchar *response;
gchar *response64;
gchar *challenge;
gsize challengelen;
guchar hexdigest[33];
challenge = g_base64_decode_zero(msg + 4, &challengelen);
log_print(LOG_PROTOCOL, "ESMTP< [Decoded: %s]\n", challenge);
g_snprintf(buf, sizeof(buf), "%s", session->pass);
md5_hex_hmac(hexdigest, challenge, challengelen,
buf, strlen(session->pass));
g_free(challenge);
response = g_strdup_printf
("%s %s", session->user, hexdigest);
log_print(LOG_PROTOCOL, "ESMTP> [Encoded: %s]\n", response);
response64 = g_base64_encode(response, strlen(response));
g_free(response);
if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
response64) < 0) {
g_free(response64);
return SM_ERROR;
}
log_print(LOG_PROTOCOL, "ESMTP> %s\n", response64);
g_free(response64);
} else {
/* Server rejects AUTH */
if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
"*") < 0)
return SM_ERROR;
log_print(LOG_PROTOCOL, "ESMTP> *\n");
}
break;
case SMTPAUTH_DIGEST_MD5:
default:
/* stop smtp_auth when no correct authtype */
if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL, "*") < 0)
return SM_ERROR;
log_print(LOG_PROTOCOL, "ESMTP> *\n");
break;
}
return SM_OK;
}
