auth-request-handler.c revision 0fec6dfc23e568bae53f03c9491df7f64473dd67
657afb33796f8216c568ad813627da89970760beTimo Sirainen/* Copyright (c) 2005-2008 Dovecot authors, see the included COPYING file */
657afb33796f8216c568ad813627da89970760beTimo Sirainen
657afb33796f8216c568ad813627da89970760beTimo Sirainen#include "common.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "ioloop.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "array.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "aqueue.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "base64.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "hash.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "str.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "str-sanitize.h"
657afb33796f8216c568ad813627da89970760beTimo Sirainen#include "auth-request.h"
657afb33796f8216c568ad813627da89970760beTimo Sirainen#include "auth-master-connection.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "auth-request-handler.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include <stdlib.h>
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#define DEFAULT_AUTH_FAILURE_DELAY 2
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#define AUTH_FAILURE_DELAY_CHECK_MSECS 500
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstruct auth_request_handler {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen int refcount;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen pool_t pool;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct hash_table *requests;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth *auth;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen unsigned int connect_uid, client_pid;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_callback_t *callback;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen void *context;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
657afb33796f8216c568ad813627da89970760beTimo Sirainen auth_request_callback_t *master_callback;
657afb33796f8216c568ad813627da89970760beTimo Sirainen};
9b62bbaf33d4516b5dffb36c3ea32ce217e7fbb1Timo Sirainen
657afb33796f8216c568ad813627da89970760beTimo Sirainenstatic ARRAY_DEFINE(auth_failures_arr, struct auth_request *);
ad49932dae8ba31e07544b66bbc4f4de707a751cTimo Sirainenstatic struct aqueue *auth_failures;
657afb33796f8216c568ad813627da89970760beTimo Sirainenstatic struct timeout *to_auth_failures;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstatic unsigned int auth_failure_delay;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstatic void auth_failure_timeout(void *context);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#undef auth_request_handler_create
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstruct auth_request_handler *
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenauth_request_handler_create(struct auth *auth,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_callback_t *callback, void *context,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_callback_t *master_callback)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request_handler *handler;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen pool_t pool;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen pool = pool_alloconly_create("auth request handler", 4096);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler = p_new(pool, struct auth_request_handler, 1);
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen handler->refcount = 1;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->pool = pool;
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen handler->requests = hash_create(default_pool, pool, 0, NULL, NULL);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->auth = auth;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->callback = callback;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->context = context;
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen handler->master_callback = master_callback;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return handler;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenvoid auth_request_handler_unref(struct auth_request_handler **_handler)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
b1e6ea3323b4d753909f79226a8a98d854f819faTimo Sirainen struct auth_request_handler *handler = *_handler;
b1e6ea3323b4d753909f79226a8a98d854f819faTimo Sirainen struct hash_iterate_context *iter;
b1e6ea3323b4d753909f79226a8a98d854f819faTimo Sirainen void *key, *value;
b1e6ea3323b4d753909f79226a8a98d854f819faTimo Sirainen
b1e6ea3323b4d753909f79226a8a98d854f819faTimo Sirainen *_handler = NULL;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_assert(handler->refcount > 0);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (--handler->refcount > 0)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen iter = hash_iterate_init(handler->requests);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen while (hash_iterate(iter, &key, &value)) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request *auth_request = value;
657afb33796f8216c568ad813627da89970760beTimo Sirainen
657afb33796f8216c568ad813627da89970760beTimo Sirainen auth_request_unref(&auth_request);
70905e51a5148bd5613cb04720807177474a2496Timo Sirainen }
70905e51a5148bd5613cb04720807177474a2496Timo Sirainen hash_iterate_deinit(&iter);
70905e51a5148bd5613cb04720807177474a2496Timo Sirainen
657afb33796f8216c568ad813627da89970760beTimo Sirainen /* notify parent that we're done with all requests */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->callback(NULL, handler->context);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
657afb33796f8216c568ad813627da89970760beTimo Sirainen hash_destroy(&handler->requests);
657afb33796f8216c568ad813627da89970760beTimo Sirainen pool_unref(&handler->pool);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
657afb33796f8216c568ad813627da89970760beTimo Sirainenvoid auth_request_handler_set(struct auth_request_handler *handler,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen unsigned int connect_uid,
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen unsigned int client_pid)
657afb33796f8216c568ad813627da89970760beTimo Sirainen{
657afb33796f8216c568ad813627da89970760beTimo Sirainen handler->connect_uid = connect_uid;
70905e51a5148bd5613cb04720807177474a2496Timo Sirainen handler->client_pid = client_pid;
657afb33796f8216c568ad813627da89970760beTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstatic void auth_request_handler_remove(struct auth_request_handler *handler,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request *request)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen hash_remove(handler->requests, POINTER_CAST(request->id));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_unref(&request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenvoid auth_request_handler_check_timeouts(struct auth_request_handler *handler)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct hash_iterate_context *iter;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen void *key, *value;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen iter = hash_iterate_init(handler->requests);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen while (hash_iterate(iter, &key, &value)) {
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen struct auth_request *request = value;
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->last_access + AUTH_REQUEST_TIMEOUT < ioloop_time)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_remove(handler, request);
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen }
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen hash_iterate_deinit(&iter);
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen}
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainenstatic const char *get_client_extra_fields(struct auth_request *request)
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen{
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen string_t *str;
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen const char **fields, *extra_fields;
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen unsigned int src, dest;
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen bool seen_pass = FALSE;
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (auth_stream_is_empty(request->extra_fields))
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen return NULL;
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen extra_fields = auth_stream_reply_export(request->extra_fields);
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen if (!request->proxy) {
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen /* we only wish to remove all fields prefixed with "userdb_" */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (strstr(extra_fields, "userdb_") == NULL)
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen return extra_fields;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen str = t_str_new(128);
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen fields = t_strsplit(extra_fields, "\t");
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen for (src = dest = 0; fields[src] != NULL; src++) {
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen if (strncmp(fields[src], "userdb_", 7) != 0) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (str_len(str) > 0)
8e176dbc6e220c4658afdcc17b097dab83b0d014Timo Sirainen str_append_c(str, '\t');
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (!seen_pass && strncmp(fields[src], "pass=", 5) == 0)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen seen_pass = TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_append(str, fields[src]);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->proxy && !seen_pass && request->mech_password != NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* we're proxying - send back the password that was
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen sent by user (not the password in passdb). */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_printfa(str, "\tpass=%s", request->mech_password);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return str_len(str) == 0 ? NULL : str_c(str);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstatic void
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenauth_request_handle_failure(struct auth_request *request, const char *str)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request_handler *handler = request->context;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->delayed_failure) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* we came here from flush_failures() */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->callback(str, handler->context);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* remove the request from requests-list */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_ref(request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_remove(handler, request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->no_failure_delay) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* passdb specifically requested not to delay the
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen reply. */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->callback(str, handler->context);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_unref(&request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* failure. don't announce it immediately to avoid
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen a) timing attacks, b) flooding */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->delayed_failure = TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->refcount++;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->last_access = ioloop_time;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen aqueue_append(auth_failures, &request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (to_auth_failures == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen to_auth_failures =
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen timeout_add(AUTH_FAILURE_DELAY_CHECK_MSECS,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_failure_timeout, NULL);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstatic void auth_callback(struct auth_request *request,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen enum auth_client_result result,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen const void *reply, size_t reply_size)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request_handler *handler = request->context;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen string_t *str;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen const char *fields;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str = t_str_new(128 + MAX_BASE64_ENCODED_SIZE(reply_size));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen switch (result) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen case AUTH_CLIENT_RESULT_CONTINUE:
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_printfa(str, "CONT\t%u\t", request->id);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen base64_encode(reply, reply_size, str);
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen request->accept_input = TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->callback(str_c(str), handler->context);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen break;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen case AUTH_CLIENT_RESULT_SUCCESS:
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_proxy_finish(request, TRUE);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_printfa(str, "OK\t%u\tuser=%s", request->id, request->user);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (reply_size > 0) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_append(str, "\tresp=");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen base64_encode(reply, reply_size, str);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen fields = get_client_extra_fields(request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (fields != NULL) {
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen str_append_c(str, '\t');
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_append(str, fields);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->no_login || handler->master_callback == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* this request doesn't have to wait for master
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen process to pick it up. delete it */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_remove(handler, request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->callback(str_c(str), handler->context);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen break;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen case AUTH_CLIENT_RESULT_FAILURE:
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_proxy_finish(request, FALSE);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_printfa(str, "FAIL\t%u", request->id);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->user != NULL)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_printfa(str, "\tuser=%s", request->user);
657afb33796f8216c568ad813627da89970760beTimo Sirainen if (request->internal_failure)
657afb33796f8216c568ad813627da89970760beTimo Sirainen str_append(str, "\ttemp");
6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainen fields = get_client_extra_fields(request);
6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainen if (fields != NULL) {
657afb33796f8216c568ad813627da89970760beTimo Sirainen str_append_c(str, '\t');
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_append(str, fields);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handle_failure(request, str_c(str));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen break;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* NOTE: request may be destroyed now */
6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_unref(&handler);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstatic void auth_request_handler_auth_fail(struct auth_request_handler *handler,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request *request,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen const char *reason)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen string_t *reply = t_str_new(64);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_log_info(request, request->mech->mech_name, "%s", reason);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_printfa(reply, "FAIL\t%u\treason=%s", request->id, reason);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->callback(str_c(reply), handler->context);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_remove(handler, request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenbool auth_request_handler_auth_begin(struct auth_request_handler *handler,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen const char *args)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen const struct mech_module *mech;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request *request;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen const char *const *list, *name, *arg, *initial_resp;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen const void *initial_resp_data;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen size_t initial_resp_len;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen unsigned int id;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen buffer_t *buf;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen bool valid_client_cert;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* <id> <mechanism> [...] */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen list = t_strsplit(args, "\t");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (list[0] == NULL || list[1] == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_error("BUG: Authentication client %u "
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "sent broken AUTH request", handler->client_pid);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen id = (unsigned int)strtoul(list[0], NULL, 10);
70c181da837ed85fc5b0426c010b65609bda5329Timo Sirainen
70c181da837ed85fc5b0426c010b65609bda5329Timo Sirainen mech = mech_module_find(list[1]);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (mech == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* unsupported mechanism */
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen i_error("BUG: Authentication client %u requested unsupported "
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen "authentication mechanism %s", handler->client_pid,
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen str_sanitize(list[1], MAX_MECH_NAME_LEN));
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen return FALSE;
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen }
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen request = auth_request_new(handler->auth, mech, auth_callback, handler);
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen request->connect_uid = handler->connect_uid;
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen request->client_pid = handler->client_pid;
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen request->id = id;
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen /* parse optional parameters */
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen initial_resp = NULL;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen valid_client_cert = FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen for (list += 2; *list != NULL; list++) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen arg = strchr(*list, '=');
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (arg == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen name = *list;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen arg = "";
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen } else {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen name = t_strdup_until(*list, arg);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen arg++;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (auth_request_import(request, name, arg))
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen ;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen else if (strcmp(name, "valid-client-cert") == 0)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen valid_client_cert = TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen else if (strcmp(name, "resp") == 0) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen initial_resp = arg;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* this must be the last parameter */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen list++;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen break;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (*list != NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_error("BUG: Authentication client %u "
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "sent AUTH parameters after 'resp'",
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->client_pid);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->service == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_error("BUG: Authentication client %u "
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "didn't specify service in request",
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->client_pid);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen hash_insert(handler->requests, POINTER_CAST(id), request);
657afb33796f8216c568ad813627da89970760beTimo Sirainen
657afb33796f8216c568ad813627da89970760beTimo Sirainen if (request->auth->ssl_require_client_cert && !valid_client_cert) {
6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainen /* we fail without valid certificate */
6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainen auth_request_handler_auth_fail(handler, request,
657afb33796f8216c568ad813627da89970760beTimo Sirainen "Client didn't present valid SSL certificate");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (initial_resp == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen initial_resp_data = NULL;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen initial_resp_len = 0;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen } else {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen size_t len = strlen(initial_resp);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen buf = buffer_create_dynamic(pool_datastack_create(),
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen MAX_BASE64_DECODED_SIZE(len));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (base64_decode(initial_resp, len, NULL, buf) < 0) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_auth_fail(handler, request,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "Invalid base64 data in initial response");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen initial_resp_data = buf->data;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen initial_resp_len = buf->used;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* handler is referenced until auth_callback is called. */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->refcount++;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_initial(request, initial_resp_data, initial_resp_len);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenbool auth_request_handler_auth_continue(struct auth_request_handler *handler,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen const char *args)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request *request;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen const char *data;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen size_t data_len;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen buffer_t *buf;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen unsigned int id;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen data = strchr(args, '\t');
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (data == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_error("BUG: Authentication client sent broken CONT request");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen data++;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen id = (unsigned int)strtoul(args, NULL, 10);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request = hash_lookup(handler->requests, POINTER_CAST(id));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen string_t *reply = t_str_new(64);
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen str_printfa(reply, "FAIL\t%u\treason=Timeouted", id);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->callback(str_c(reply), handler->context);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen /* accept input only once after mechanism has sent a CONT reply */
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen if (!request->accept_input) {
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen auth_request_handler_auth_fail(handler, request,
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen "Unexpected continuation");
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen return TRUE;
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen }
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen request->accept_input = FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
7e078be0d6f12ca56860641d36e3c517e3046895Timo Sirainen data_len = strlen(data);
7e078be0d6f12ca56860641d36e3c517e3046895Timo Sirainen buf = buffer_create_dynamic(pool_datastack_create(),
7e078be0d6f12ca56860641d36e3c517e3046895Timo Sirainen MAX_BASE64_DECODED_SIZE(data_len));
7e078be0d6f12ca56860641d36e3c517e3046895Timo Sirainen if (base64_decode(data, data_len, NULL, buf) < 0) {
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen auth_request_handler_auth_fail(handler, request,
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen "Invalid base64 data in continued response");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen /* handler is referenced until auth_callback is called. */
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen handler->refcount++;
657afb33796f8216c568ad813627da89970760beTimo Sirainen auth_request_continue(request, buf->data, buf->used);
657afb33796f8216c568ad813627da89970760beTimo Sirainen return TRUE;
657afb33796f8216c568ad813627da89970760beTimo Sirainen}
ad49932dae8ba31e07544b66bbc4f4de707a751cTimo Sirainen
657afb33796f8216c568ad813627da89970760beTimo Sirainenstatic void userdb_callback(enum userdb_result result,
657afb33796f8216c568ad813627da89970760beTimo Sirainen struct auth_request *request)
657afb33796f8216c568ad813627da89970760beTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request_handler *handler = request->context;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_stream_reply *reply = request->userdb_reply;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen string_t *str;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_assert(request->state == AUTH_REQUEST_STATE_USERDB);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->state = AUTH_REQUEST_STATE_FINISHED;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->userdb_lookup_failed)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen result = USERDB_RESULT_INTERNAL_FAILURE;
ad49932dae8ba31e07544b66bbc4f4de707a751cTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str = t_str_new(256);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen switch (result) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen case USERDB_RESULT_INTERNAL_FAILURE:
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_printfa(str, "FAIL\t%u", request->id);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen break;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen case USERDB_RESULT_USER_UNKNOWN:
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen str_printfa(str, "NOTFOUND\t%u", request->id);
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen break;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen case USERDB_RESULT_OK:
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->master_user != NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_stream_reply_add(reply, "master_user",
ad49932dae8ba31e07544b66bbc4f4de707a751cTimo Sirainen request->master_user);
0a8ec3c561c26c492a50511692650ea302cc8c14Timo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_printfa(str, "USER\t%u\t", request->id);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_append(str, auth_stream_reply_export(reply));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen break;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen handler->master_callback(str_c(str), request->master);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_master_connection_unref(&request->master);
ad49932dae8ba31e07544b66bbc4f4de707a751cTimo Sirainen auth_request_unref(&request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_unref(&handler);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenvoid auth_request_handler_master_request(struct auth_request_handler *handler,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_master_connection *master,
657afb33796f8216c568ad813627da89970760beTimo Sirainen unsigned int id,
657afb33796f8216c568ad813627da89970760beTimo Sirainen unsigned int client_id)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
657afb33796f8216c568ad813627da89970760beTimo Sirainen struct auth_request *request;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen string_t *reply;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen reply = t_str_new(64);
8d80659e504ffb34bb0c6a633184fece35751b18Timo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request = hash_lookup(handler->requests, POINTER_CAST(client_id));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_error("Master request %u.%u not found",
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen handler->client_pid, client_id);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_printfa(reply, "NOTFOUND\t%u", id);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->master_callback(str_c(reply), master);
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen return;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
657afb33796f8216c568ad813627da89970760beTimo Sirainen auth_request_ref(request);
657afb33796f8216c568ad813627da89970760beTimo Sirainen auth_request_handler_remove(handler, request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
657afb33796f8216c568ad813627da89970760beTimo Sirainen if (request->state != AUTH_REQUEST_STATE_FINISHED ||
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen !request->successful) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_error("Master requested unfinished authentication request "
657afb33796f8216c568ad813627da89970760beTimo Sirainen "%u.%u", handler->client_pid, client_id);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_printfa(reply, "NOTFOUND\t%u", id);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->master_callback(str_c(reply), master);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_unref(&request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen } else {
657afb33796f8216c568ad813627da89970760beTimo Sirainen /* the request isn't being referenced anywhere anymore,
657afb33796f8216c568ad813627da89970760beTimo Sirainen so we can do a bit of kludging.. replace the request's
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen old client_id with master's id. */
657afb33796f8216c568ad813627da89970760beTimo Sirainen request->state = AUTH_REQUEST_STATE_USERDB;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->id = id;
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen request->context = handler;
657afb33796f8216c568ad813627da89970760beTimo Sirainen request->master = master;
/* master and handler are referenced until userdb_callback i
s called. */
auth_master_connection_ref(master);
handler->refcount++;
auth_request_lookup_user(request, userdb_callback);
}
}
void auth_request_handler_flush_failures(bool flush_all)
{
struct auth_request **auth_requests, *auth_request;
unsigned int i, count;
time_t diff;
count = aqueue_count(auth_failures);
if (count == 0) {
if (to_auth_failures != NULL)
timeout_remove(&to_auth_failures);
return;
}
auth_requests = array_idx_modifiable(&auth_failures_arr, 0);
for (i = 0; i < count; i++) {
auth_request = auth_requests[aqueue_idx(auth_failures, 0)];
diff = ioloop_time - auth_request->last_access;
if (diff < auth_failure_delay && !flush_all)
break;
aqueue_delete_tail(auth_failures);
i_assert(auth_request->state == AUTH_REQUEST_STATE_FINISHED);
auth_request->callback(auth_request,
AUTH_CLIENT_RESULT_FAILURE, NULL, 0);
auth_request_unref(&auth_request);
}
}
static void auth_failure_timeout(void *context ATTR_UNUSED)
{
auth_request_handler_flush_failures(FALSE);
}
void auth_request_handler_init(void)
{
const char *env;
env = getenv("FAILURE_DELAY");
auth_failure_delay = env != NULL ? atoi(env) :
DEFAULT_AUTH_FAILURE_DELAY;
i_array_init(&auth_failures_arr, 128);
auth_failures = aqueue_init(&auth_failures_arr.arr);
}
void auth_request_handler_deinit(void)
{
auth_request_handler_flush_failures(TRUE);
array_free(&auth_failures_arr);
aqueue_deinit(&auth_failures);
if (to_auth_failures != NULL)
timeout_remove(&to_auth_failures);
}