auth-client-request.c revision 1a29ed2f96da1be22fa5a4d96c7583aa81b8b060
18372712592b30638772afb5b7e15bfca92c2058Lukas Slebodnik/* Copyright (c) 2003-2018 Dovecot authors, see the included COPYING file */
18372712592b30638772afb5b7e15bfca92c2058Lukas Slebodnik
18372712592b30638772afb5b7e15bfca92c2058Lukas Slebodnik#include "lib.h"
18372712592b30638772afb5b7e15bfca92c2058Lukas Slebodnik#include "str.h"
18372712592b30638772afb5b7e15bfca92c2058Lukas Slebodnik#include "strescape.h"
#include "ostream.h"
#include "auth-client-private.h"
#include "auth-server-connection.h"
#include "auth-client-request.h"
struct auth_client_request {
pool_t pool;
struct auth_server_connection *conn;
unsigned int id;
time_t created;
auth_request_callback_t *callback;
void *context;
};
static void auth_server_send_new_request(struct auth_server_connection *conn,
struct auth_client_request *request,
const struct auth_request_info *info)
{
string_t *str;
str = t_str_new(512);
str_printfa(str, "AUTH\t%u\t", request->id);
str_append_tabescaped(str, info->mech);
str_append(str, "\tservice=");
str_append_tabescaped(str, info->service);
if ((info->flags & AUTH_REQUEST_FLAG_SUPPORT_FINAL_RESP) != 0)
str_append(str, "\tfinal-resp-ok");
if ((info->flags & AUTH_REQUEST_FLAG_SECURED) != 0) {
str_append(str, "\tsecured");
if ((info->flags & AUTH_REQUEST_FLAG_TRANSPORT_SECURITY_TLS) != 0)
str_append(str, "=tls");
} else {
i_assert((info->flags & AUTH_REQUEST_FLAG_TRANSPORT_SECURITY_TLS) == 0);
}
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->flags & AUTH_REQUEST_FLAG_DEBUG) != 0)
str_append(str, "\tdebug");
if (info->session_id != NULL) {
str_append(str, "\tsession=");
str_append_tabescaped(str, info->session_id);
}
if (info->cert_username != NULL) {
str_append(str, "\tcert_username=");
str_append_tabescaped(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);
/* send the real_* variants only when they differ from the unreal
ones */
if (info->real_local_ip.family != 0 &&
!net_ip_compare(&info->real_local_ip, &info->local_ip)) {
str_printfa(str, "\treal_lip=%s",
net_ip2addr(&info->real_local_ip));
}
if (info->real_remote_ip.family != 0 &&
!net_ip_compare(&info->real_remote_ip, &info->remote_ip)) {
str_printfa(str, "\treal_rip=%s",
net_ip2addr(&info->real_remote_ip));
}
if (info->real_local_port != 0 &&
info->real_local_port != info->local_port)
str_printfa(str, "\treal_lport=%u", info->real_local_port);
if (info->real_remote_port != 0 &&
info->real_remote_port != info->remote_port)
str_printfa(str, "\treal_rport=%u", info->real_remote_port);
if (info->local_name != NULL &&
*info->local_name != '\0') {
str_append(str, "\tlocal_name=");
str_append_tabescaped(str, info->local_name);
}
if (info->ssl_cipher_bits != 0 && info->ssl_cipher != NULL) {
str_append(str, "\tssl_cipher=");
str_append_tabescaped(str, info->ssl_cipher);
str_printfa(str, "\tssl_cipher_bits=%u", info->ssl_cipher_bits);
if (info->ssl_pfs != NULL) {
str_append(str, "\tssl_pfs=");
str_append_tabescaped(str, info->ssl_pfs);
}
}
if (info->ssl_protocol != NULL) {
str_append(str, "\tssl_protocol=");
str_append_tabescaped(str, info->ssl_protocol);
}
if (info->client_id != NULL &&
*info->client_id != '\0') {
str_append(str, "\tclient_id=");
str_append_tabescaped(str, info->client_id);
}
if (info->forward_fields != NULL &&
*info->forward_fields != '\0') {
str_append(str, "\tforward_fields=");
str_append_tabescaped(str, info->forward_fields);
}
if (info->initial_resp_base64 != NULL) {
str_append(str, "\tresp=");
str_append_tabescaped(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->callback = callback;
request->context = context;
request->id =
auth_server_connection_add_request(request->conn, request);
request->created = ioloop_time;
T_BEGIN {
auth_server_send_new_request(request->conn, request, request_info);
} 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 ATTR_NULL(3, 4)
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);
pool_unref(&request->pool);
}
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;
}
time_t auth_client_request_get_create_time(struct auth_client_request *request)
{
return request->created;
}
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");
}