auth-client-request.c revision 7c849dbc7be089175c1a83a84ee7249ed695810d
/* Copyright (c) 2003-2011 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "str.h"
#include "strescape.h"
#include "ostream.h"
#include "auth-client-private.h"
#include "auth-server-connection.h"
#include "auth-client-request.h"
#include <stdlib.h>
struct auth_client_request {
pool_t pool;
struct auth_server_connection *conn;
unsigned int id;
struct auth_request_info request_info;
auth_request_callback_t *callback;
void *context;
};
static void auth_server_send_new_request(struct auth_server_connection *conn,
struct auth_client_request *request)
{
struct auth_request_info *info = &request->request_info;
string_t *str;
str = t_str_new(512);
str_printfa(str, "AUTH\t%u\t", request->id);
str_tabescape_write(str, info->mech);
str_append(str, "\tservice=");
str_tabescape_write(str, info->service);
if ((info->flags & AUTH_REQUEST_FLAG_SECURED) != 0)
str_append(str, "\tsecured");
if ((info->flags & AUTH_REQUEST_FLAG_NO_PENALTY) != 0)
str_append(str, "\tno-penalty");
if ((info->flags & AUTH_REQUEST_FLAG_VALID_CLIENT_CERT) != 0)
str_append(str, "\tvalid-client-cert");
if (info->cert_username != NULL) {
str_append(str, "\tcert_username=");
str_tabescape_write(str, info->cert_username);
}
if (info->local_ip.family != 0)
str_printfa(str, "\tlip=%s", net_ip2addr(&info->local_ip));
if (info->remote_ip.family != 0)
str_printfa(str, "\trip=%s", net_ip2addr(&info->remote_ip));
if (info->local_port != 0)
str_printfa(str, "\tlport=%u", info->local_port);
if (info->remote_port != 0)
str_printfa(str, "\trport=%u", info->remote_port);
if (info->initial_resp_base64 != NULL) {
str_append(str, "\tresp=");
str_tabescape_write(str, info->initial_resp_base64);
}
str_append_c(str, '\n');
if (o_stream_send(conn->output, str_data(str), str_len(str)) < 0)
i_error("Error sending request to auth server: %m");
}
struct auth_client_request *
auth_client_request_new(struct auth_client *client,
const struct auth_request_info *request_info,
auth_request_callback_t *callback, void *context)
{
struct auth_client_request *request;
pool_t pool;
pool = pool_alloconly_create("auth client request", 512);
request = p_new(pool, struct auth_client_request, 1);
request->pool = pool;
request->conn = client->conn;
request->request_info = *request_info;
request->request_info.mech = p_strdup(pool, request_info->mech);
request->request_info.service = p_strdup(pool, request_info->service);
request->request_info.cert_username =
p_strdup(pool, request_info->cert_username);
request->request_info.initial_resp_base64 =
p_strdup(pool, request_info->initial_resp_base64);
request->callback = callback;
request->context = context;
request->id =
auth_server_connection_add_request(request->conn, request);
T_BEGIN {
auth_server_send_new_request(request->conn, request);
} T_END;
return request;
}
void auth_client_request_continue(struct auth_client_request *request,
const char *data_base64)
{
struct const_iovec iov[3];
const char *prefix;
prefix = t_strdup_printf("CONT\t%u\t", request->id);
iov[0].iov_base = prefix;
iov[0].iov_len = strlen(prefix);
iov[1].iov_base = data_base64;
iov[1].iov_len = strlen(data_base64);
iov[2].iov_base = "\n";
iov[2].iov_len = 1;
if (o_stream_sendv(request->conn->output, iov, 3) < 0)
i_error("Error sending continue request to auth server: %m");
}
static void call_callback(struct auth_client_request *request,
enum auth_request_status status,
const char *data_base64,
const char *const *args)
{
auth_request_callback_t *callback = request->callback;
if (status != AUTH_REQUEST_STATUS_CONTINUE)
request->callback = NULL;
callback(request, status, data_base64, args, request->context);
}
void auth_client_request_abort(struct auth_client_request **_request)
{
struct auth_client_request *request = *_request;
*_request = NULL;
auth_client_send_cancel(request->conn->client, request->id);
call_callback(request, AUTH_REQUEST_STATUS_ABORT, NULL, NULL);
}
unsigned int auth_client_request_get_id(struct auth_client_request *request)
{
return request->id;
}
unsigned int
auth_client_request_get_server_pid(struct auth_client_request *request)
{
return request->conn->server_pid;
}
const char *auth_client_request_get_cookie(struct auth_client_request *request)
{
return request->conn->cookie;
}
bool auth_client_request_is_aborted(struct auth_client_request *request)
{
return request->callback == NULL;
}
void auth_client_request_server_input(struct auth_client_request *request,
enum auth_request_status status,
const char *const *args)
{
const char *const *tmp, *base64_data = NULL;
if (request->callback == NULL) {
/* aborted already */
return;
}
switch (status) {
case AUTH_REQUEST_STATUS_OK:
for (tmp = args; *tmp != NULL; tmp++) {
if (strncmp(*tmp, "resp=", 5) == 0) {
base64_data = *tmp + 5;
break;
}
}
break;
case AUTH_REQUEST_STATUS_CONTINUE:
base64_data = args[0];
args = NULL;
break;
case AUTH_REQUEST_STATUS_FAIL:
case AUTH_REQUEST_STATUS_INTERNAL_FAIL:
case AUTH_REQUEST_STATUS_ABORT:
break;
}
call_callback(request, status, base64_data, args);
if (status != AUTH_REQUEST_STATUS_CONTINUE)
pool_unref(&request->pool);
}
void auth_client_send_cancel(struct auth_client *client, unsigned int id)
{
const char *str = t_strdup_printf("CANCEL\t%u\n", id);
if (o_stream_send_str(client->conn->output, str) < 0)
i_error("Error sending request to auth server: %m");
}