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/* Copyright (c) 2005-2018 Dovecot authors, see the included COPYING file */
#include "auth-common.h"
#include "str.h"
#include "strescape.h"
#include "auth-worker-server.h"
#include "password-scheme.h"
#include "passdb.h"
#include "passdb-blocking.h"
static void
auth_worker_reply_parse_args(struct auth_request *request,
const char *const *args)
{
if (**args != '\0')
request->passdb_password = p_strdup(request->pool, *args);
args++;
if (*args != NULL)
auth_request_set_fields(request, args, NULL);
}
enum passdb_result
passdb_blocking_auth_worker_reply_parse(struct auth_request *request, const char *reply)
{
enum passdb_result ret;
const char *const *args;
args = t_strsplit_tabescaped(reply);
if (strcmp(*args, "OK") == 0 && args[1] != NULL && args[2] != NULL) {
/* OK \t user \t password [\t extra] */
if (args[1][0] != '\0')
auth_request_set_field(request, "user", args[1], NULL);
auth_worker_reply_parse_args(request, args + 2);
return PASSDB_RESULT_OK;
}
if (strcmp(*args, "NEXT") == 0 && args[1] != NULL) {
/* NEXT \t user [\t extra] */
if (args[1][0] != '\0')
auth_request_set_field(request, "user", args[1], NULL);
auth_worker_reply_parse_args(request, args + 1);
return PASSDB_RESULT_NEXT;
}
if (strcmp(*args, "FAIL") == 0 && args[1] != NULL) {
int result;
/* FAIL \t result [\t user \t password [\t extra]] */
if (str_to_int(args[1], &result) < 0) {
/* shouldn't happen */
} else {
ret = (enum passdb_result)result;
if (ret == PASSDB_RESULT_OK) {
/* shouldn't happen */
} else if (args[2] == NULL) {
/* internal failure most likely */
return ret;
} else if (args[3] != NULL) {
if (*args[2] != '\0') {
auth_request_set_field(request, "user",
args[2], NULL);
}
auth_worker_reply_parse_args(request, args + 3);
return ret;
}
}
}
e_error(authdb_event(request),
"Received invalid reply from worker: %s", reply);
return PASSDB_RESULT_INTERNAL_FAILURE;
}
static bool
verify_plain_callback(struct auth_worker_connection *conn ATTR_UNUSED,
const char *reply, void *context)
{
struct auth_request *request = context;
enum passdb_result result;
result = passdb_blocking_auth_worker_reply_parse(request, reply);
auth_request_verify_plain_callback(result, request);
auth_request_unref(&request);
return TRUE;
}
void passdb_blocking_verify_plain(struct auth_request *request)
{
string_t *str;
str = t_str_new(128);
str_printfa(str, "PASSV\t%u\t", request->passdb->passdb->id);
str_append_tabescaped(str, request->mech_password);
str_append_c(str, '\t');
auth_request_export(request, str);
auth_request_ref(request);
auth_worker_call(request->pool, request->fields.user, str_c(str),
verify_plain_callback, request);
}
static bool
lookup_credentials_callback(struct auth_worker_connection *conn ATTR_UNUSED,
const char *reply, void *context)
{
struct auth_request *request = context;
enum passdb_result result;
const char *password = NULL, *scheme = NULL;
result = passdb_blocking_auth_worker_reply_parse(request, reply);
if (result == PASSDB_RESULT_OK && request->passdb_password != NULL) {
password = request->passdb_password;
scheme = password_get_scheme(&password);
if (scheme == NULL) {
e_error(authdb_event(request),
"Received reply from worker without "
"password scheme");
result = PASSDB_RESULT_INTERNAL_FAILURE;
}
}
passdb_handle_credentials(result, password, scheme,
auth_request_lookup_credentials_callback,
request);
auth_request_unref(&request);
return TRUE;
}
void passdb_blocking_lookup_credentials(struct auth_request *request)
{
string_t *str;
str = t_str_new(128);
str_printfa(str, "PASSL\t%u\t", request->passdb->passdb->id);
str_append_tabescaped(str, request->wanted_credentials_scheme);
str_append_c(str, '\t');
auth_request_export(request, str);
auth_request_ref(request);
auth_worker_call(request->pool, request->fields.user, str_c(str),
lookup_credentials_callback, request);
}
static bool
set_credentials_callback(struct auth_worker_connection *conn ATTR_UNUSED,
const char *reply, void *context)
{
struct auth_request *request = context;
bool success;
success = strcmp(reply, "OK") == 0 || str_begins(reply, "OK\t");
request->private_callback.set_credentials(success, request);
auth_request_unref(&request);
return TRUE;
}
void passdb_blocking_set_credentials(struct auth_request *request,
const char *new_credentials)
{
string_t *str;
str = t_str_new(128);
str_printfa(str, "SETCRED\t%u\t", request->passdb->passdb->id);
str_append_tabescaped(str, new_credentials);
str_append_c(str, '\t');
auth_request_export(request, str);
auth_request_ref(request);
auth_worker_call(request->pool, request->fields.user, str_c(str),
set_credentials_callback, request);
}
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