auth-request-handler.c revision 8bb360f9e5de1c25e4f875205bb06e8bf15dae14
5f5870385cff47efd2f58e7892f251cf13761528Timo Sirainen/* Copyright (c) 2005-2010 Dovecot authors, see the included COPYING file */
657afb33796f8216c568ad813627da89970760beTimo Sirainen
08d6658a4e2ec8104cd1307f6baa75fdb07a24f8Mark Washenberger#include "auth-common.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "ioloop.h"
a550b0fbcf7e876eeb88f4528209ed28cc416752Timo Sirainen#include "array.h"
2872c818f9c6704609f4d67d984b033a63e3a108Timo 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"
d99107ddf4d9bccb710994482daf65276a9d6321Timo Sirainen#include "auth-penalty.h"
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen#include "auth-request.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "auth-master-connection.h"
ecb1b2d6236942bf82f822e8d0167f0e160b206dTimo Sirainen#include "auth-request-handler.h"
657afb33796f8216c568ad813627da89970760beTimo Sirainen
657afb33796f8216c568ad813627da89970760beTimo Sirainen#include <stdlib.h>
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#define AUTH_FAILURE_DELAY_CHECK_MSECS 500
a3b3e5b452be15049a1f8bfd5b3bb640af41121cTimo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainenstruct auth_request_handler {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen int refcount;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen pool_t pool;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct hash_table *requests;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen unsigned int connect_uid, client_pid;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_callback_t *callback;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen void *context;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_callback_t *master_callback;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen};
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainenstatic ARRAY_DEFINE(auth_failures_arr, struct auth_request *);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstatic struct aqueue *auth_failures;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstatic struct timeout *to_auth_failures;
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainenstatic void auth_failure_timeout(void *context);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
657afb33796f8216c568ad813627da89970760beTimo Sirainen#undef auth_request_handler_create
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainenstruct auth_request_handler *
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainenauth_request_handler_create(auth_request_callback_t *callback, void *context,
59151b71059df1190acd75d8717ed04a7920c862Timo Sirainen auth_request_callback_t *master_callback)
657afb33796f8216c568ad813627da89970760beTimo Sirainen{
9be4e6701d086c009f3db1913a148139ea180420Timo Sirainen struct auth_request_handler *handler;
ad49932dae8ba31e07544b66bbc4f4de707a751cTimo Sirainen pool_t pool;
657afb33796f8216c568ad813627da89970760beTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen pool = pool_alloconly_create("auth request handler", 4096);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler = p_new(pool, struct auth_request_handler, 1);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->refcount = 1;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->pool = pool;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->requests = hash_table_create(default_pool, pool, 0, NULL, NULL);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->callback = callback;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->context = context;
3ccab0bac68040f179a7de45c516cec258e28fdbTimo 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{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request_handler *handler = *_handler;
a7e2c98560cf54dc656711a237cb07da8a5a9ee4Timo Sirainen struct hash_iterate_context *iter;
a7e2c98560cf54dc656711a237cb07da8a5a9ee4Timo Sirainen void *key, *value;
a7e2c98560cf54dc656711a237cb07da8a5a9ee4Timo Sirainen
a7e2c98560cf54dc656711a237cb07da8a5a9ee4Timo Sirainen *_handler = NULL;
a7e2c98560cf54dc656711a237cb07da8a5a9ee4Timo Sirainen i_assert(handler->refcount > 0);
a7e2c98560cf54dc656711a237cb07da8a5a9ee4Timo Sirainen if (--handler->refcount > 0)
9d75363d3fbabc2fbc2d80f06672e3ed8965804aTimo Sirainen return;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
f19cf95ae8fc233567b1c7751595eb66876d684aTimo Sirainen iter = hash_table_iterate_init(handler->requests);
f19cf95ae8fc233567b1c7751595eb66876d684aTimo Sirainen while (hash_table_iterate(iter, &key, &value)) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request *auth_request = value;
f19cf95ae8fc233567b1c7751595eb66876d684aTimo Sirainen
f19cf95ae8fc233567b1c7751595eb66876d684aTimo Sirainen auth_request_unref(&auth_request);
f19cf95ae8fc233567b1c7751595eb66876d684aTimo Sirainen }
f19cf95ae8fc233567b1c7751595eb66876d684aTimo Sirainen hash_table_iterate_deinit(&iter);
cc4d0d30fbba883d5d1b600646491fb77bdb989cTimo Sirainen
cc4d0d30fbba883d5d1b600646491fb77bdb989cTimo Sirainen /* notify parent that we're done with all requests */
cc4d0d30fbba883d5d1b600646491fb77bdb989cTimo Sirainen handler->callback(NULL, handler->context);
cc4d0d30fbba883d5d1b600646491fb77bdb989cTimo Sirainen
cc4d0d30fbba883d5d1b600646491fb77bdb989cTimo Sirainen hash_table_destroy(&handler->requests);
cc4d0d30fbba883d5d1b600646491fb77bdb989cTimo Sirainen pool_unref(&handler->pool);
cc4d0d30fbba883d5d1b600646491fb77bdb989cTimo Sirainen}
cc4d0d30fbba883d5d1b600646491fb77bdb989cTimo Sirainen
cc4d0d30fbba883d5d1b600646491fb77bdb989cTimo Sirainenvoid auth_request_handler_set(struct auth_request_handler *handler,
cc4d0d30fbba883d5d1b600646491fb77bdb989cTimo Sirainen unsigned int connect_uid,
cc4d0d30fbba883d5d1b600646491fb77bdb989cTimo Sirainen unsigned int client_pid)
cc4d0d30fbba883d5d1b600646491fb77bdb989cTimo Sirainen{
cc4d0d30fbba883d5d1b600646491fb77bdb989cTimo Sirainen handler->connect_uid = connect_uid;
cc4d0d30fbba883d5d1b600646491fb77bdb989cTimo Sirainen handler->client_pid = client_pid;
f19cf95ae8fc233567b1c7751595eb66876d684aTimo Sirainen}
f19cf95ae8fc233567b1c7751595eb66876d684aTimo Sirainen
8c6c6b95f482d2a2cdc74db5582aeb24871e3579Timo Sirainenstatic void auth_request_handler_remove(struct auth_request_handler *handler,
8c6c6b95f482d2a2cdc74db5582aeb24871e3579Timo Sirainen struct auth_request *request)
9d75363d3fbabc2fbc2d80f06672e3ed8965804aTimo Sirainen{
fbee9bffb56d882b98146dd0de76a5bcccc2bdc3Timo Sirainen i_assert(request->handler == handler);
fbee9bffb56d882b98146dd0de76a5bcccc2bdc3Timo Sirainen
fbee9bffb56d882b98146dd0de76a5bcccc2bdc3Timo Sirainen hash_table_remove(handler->requests, POINTER_CAST(request->id));
fbee9bffb56d882b98146dd0de76a5bcccc2bdc3Timo Sirainen auth_request_unref(&request);
fbee9bffb56d882b98146dd0de76a5bcccc2bdc3Timo Sirainen}
9d75363d3fbabc2fbc2d80f06672e3ed8965804aTimo Sirainen
9d75363d3fbabc2fbc2d80f06672e3ed8965804aTimo Sirainenstatic void get_client_extra_fields(struct auth_request *request,
9d75363d3fbabc2fbc2d80f06672e3ed8965804aTimo Sirainen struct auth_stream_reply *reply)
9d75363d3fbabc2fbc2d80f06672e3ed8965804aTimo Sirainen{
9d75363d3fbabc2fbc2d80f06672e3ed8965804aTimo Sirainen const char **fields, *extra_fields;
9d75363d3fbabc2fbc2d80f06672e3ed8965804aTimo Sirainen unsigned int src;
9d75363d3fbabc2fbc2d80f06672e3ed8965804aTimo Sirainen bool seen_pass = FALSE;
9d75363d3fbabc2fbc2d80f06672e3ed8965804aTimo Sirainen
fbee9bffb56d882b98146dd0de76a5bcccc2bdc3Timo Sirainen if (auth_stream_is_empty(request->extra_fields))
9d75363d3fbabc2fbc2d80f06672e3ed8965804aTimo Sirainen return;
9d75363d3fbabc2fbc2d80f06672e3ed8965804aTimo Sirainen
fbee9bffb56d882b98146dd0de76a5bcccc2bdc3Timo Sirainen extra_fields = auth_stream_reply_export(request->extra_fields);
fbee9bffb56d882b98146dd0de76a5bcccc2bdc3Timo Sirainen
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen if (!request->proxy) {
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen /* we only wish to remove all fields prefixed with "userdb_" */
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen if (strstr(extra_fields, "userdb_") == NULL) {
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen auth_stream_reply_import(reply, extra_fields);
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen return;
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen }
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen }
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen fields = t_strsplit(extra_fields, "\t");
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen for (src = 0; fields[src] != NULL; src++) {
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen if (strncmp(fields[src], "userdb_", 7) != 0) {
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen if (!seen_pass && strncmp(fields[src], "pass=", 5) == 0)
70905e51a5148bd5613cb04720807177474a2496Timo Sirainen seen_pass = TRUE;
70905e51a5148bd5613cb04720807177474a2496Timo Sirainen auth_stream_reply_import(reply, fields[src]);
70905e51a5148bd5613cb04720807177474a2496Timo Sirainen }
657afb33796f8216c568ad813627da89970760beTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->proxy) {
657afb33796f8216c568ad813627da89970760beTimo Sirainen /* we're proxying */
657afb33796f8216c568ad813627da89970760beTimo Sirainen if (!seen_pass && request->mech_password != NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* send back the password that was sent by user
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen (not the password in passdb). */
657afb33796f8216c568ad813627da89970760beTimo Sirainen auth_stream_reply_add(reply, "pass",
48ac75465ae154b1d705f18de6d95045ab714b65Timo Sirainen request->mech_password);
48ac75465ae154b1d705f18de6d95045ab714b65Timo Sirainen }
ea95a057fa5f02d50027122cacd3147fce7679faTimo Sirainen if (request->master_user != NULL) {
ea95a057fa5f02d50027122cacd3147fce7679faTimo Sirainen /* the master username needs to be forwarded */
ea95a057fa5f02d50027122cacd3147fce7679faTimo Sirainen auth_stream_reply_add(reply, "master",
ea95a057fa5f02d50027122cacd3147fce7679faTimo Sirainen request->master_user);
ea95a057fa5f02d50027122cacd3147fce7679faTimo Sirainen }
ea95a057fa5f02d50027122cacd3147fce7679faTimo Sirainen }
e69e7b734b625de1f8921b7e0d92afa1df6b900dTimo Sirainen}
e69e7b734b625de1f8921b7e0d92afa1df6b900dTimo Sirainen
e69e7b734b625de1f8921b7e0d92afa1df6b900dTimo Sirainenstatic void
e69e7b734b625de1f8921b7e0d92afa1df6b900dTimo Sirainenauth_request_handle_failure(struct auth_request *request,
3ccab0bac68040f179a7de45c516cec258e28fdbTimo Sirainen struct auth_stream_reply *reply)
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen{
657afb33796f8216c568ad813627da89970760beTimo Sirainen struct auth_request_handler *handler = request->context;
657afb33796f8216c568ad813627da89970760beTimo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen if (request->delayed_failure) {
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen /* we came here from flush_failures() */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->callback(reply, handler->context);
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen return;
8bb360f9e5de1c25e4f875205bb06e8bf15dae14Timo Sirainen }
662a9000b1788f1cdf765e6b1c89df9a42cc3e32Timo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* remove the request from requests-list */
bbf81c8fc6f21382707673dc6bd7b87ffc27981bTimo Sirainen auth_request_ref(request);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_request_handler_remove(handler, request);
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen
bbf81c8fc6f21382707673dc6bd7b87ffc27981bTimo Sirainen if (request->no_failure_delay) {
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen /* passdb specifically requested not to delay the
aefe17424820c57bcb05b0aaec4a930e8222baccTimo Sirainen reply. */
aefe17424820c57bcb05b0aaec4a930e8222baccTimo Sirainen handler->callback(reply, handler->context);
aefe17424820c57bcb05b0aaec4a930e8222baccTimo Sirainen auth_request_unref(&request);
aefe17424820c57bcb05b0aaec4a930e8222baccTimo Sirainen return;
aefe17424820c57bcb05b0aaec4a930e8222baccTimo Sirainen }
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* failure. don't announce it immediately to avoid
3c296d819c54e21ce05c3d2eeeedc79be42ac593Timo Sirainen a) timing attacks, b) flooding */
8bb360f9e5de1c25e4f875205bb06e8bf15dae14Timo Sirainen request->delayed_failure = TRUE;
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen handler->refcount++;
662a9000b1788f1cdf765e6b1c89df9a42cc3e32Timo Sirainen
662a9000b1788f1cdf765e6b1c89df9a42cc3e32Timo Sirainen auth_penalty_update(auth_penalty, request,
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen request->last_penalty + 1);
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_refresh_last_access(request);
662a9000b1788f1cdf765e6b1c89df9a42cc3e32Timo Sirainen aqueue_append(auth_failures, &request);
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen if (to_auth_failures == NULL) {
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen to_auth_failures =
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen timeout_add(AUTH_FAILURE_DELAY_CHECK_MSECS,
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen auth_failure_timeout, NULL);
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen }
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen}
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainenstatic void auth_callback(struct auth_request *request,
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen enum auth_client_result result,
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen const void *auth_reply, size_t reply_size)
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen{
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen struct auth_request_handler *handler = request->context;
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen struct auth_stream_reply *reply;
662a9000b1788f1cdf765e6b1c89df9a42cc3e32Timo Sirainen string_t *str;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen reply = auth_stream_reply_init(pool_datastack_create());
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen switch (result) {
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen case AUTH_CLIENT_RESULT_CONTINUE:
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "CONT", NULL);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(request->id));
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen str = t_str_new(MAX_BASE64_ENCODED_SIZE(reply_size));
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen base64_encode(auth_reply, reply_size, str);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_stream_reply_add(reply, NULL, str_c(str));
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen request->accept_input = TRUE;
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen handler->callback(reply, handler->context);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen break;
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen case AUTH_CLIENT_RESULT_SUCCESS:
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_request_proxy_finish(request, TRUE);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen if (request->last_penalty != 0) {
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen /* reset penalty */
9d75363d3fbabc2fbc2d80f06672e3ed8965804aTimo Sirainen auth_penalty_update(auth_penalty, request, 0);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen }
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_stream_reply_add(reply, "OK", NULL);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(request->id));
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_stream_reply_add(reply, "user", request->user);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen if (reply_size > 0) {
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen str = t_str_new(MAX_BASE64_ENCODED_SIZE(reply_size));
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen base64_encode(auth_reply, reply_size, str);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_stream_reply_add(reply, "resp", str_c(str));
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen }
2c8ff32886e56a5e037169c9ebef4219f85a5629Timo Sirainen get_client_extra_fields(request, reply);
2c8ff32886e56a5e037169c9ebef4219f85a5629Timo Sirainen if (request->no_login || handler->master_callback == NULL) {
2c8ff32886e56a5e037169c9ebef4219f85a5629Timo Sirainen /* this request doesn't have to wait for master
2c8ff32886e56a5e037169c9ebef4219f85a5629Timo Sirainen process to pick it up. delete it */
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen auth_request_handler_remove(handler, request);
48ac75465ae154b1d705f18de6d95045ab714b65Timo Sirainen }
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen handler->callback(reply, handler->context);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen break;
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen case AUTH_CLIENT_RESULT_FAILURE:
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_request_proxy_finish(request, FALSE);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_stream_reply_add(reply, "FAIL", NULL);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(request->id));
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen if (request->user != NULL)
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen auth_stream_reply_add(reply, "user", request->user);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen if (request->internal_failure)
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen auth_stream_reply_add(reply, "temp", NULL);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen else if (request->master_user != NULL) {
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen /* authentication succeeded, but we can't log in
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen as the wanted user */
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen auth_stream_reply_add(reply, "authz", NULL);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen }
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen if (request->no_failure_delay)
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen auth_stream_reply_add(reply, "nodelay", NULL);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen get_client_extra_fields(request, reply);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen auth_request_handle_failure(request, reply);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen break;
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen }
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen /* NOTE: request may be destroyed now */
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen auth_request_handler_unref(&handler);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen}
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainenstatic void auth_request_handler_auth_fail(struct auth_request_handler *handler,
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen struct auth_request *request,
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen const char *reason)
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen{
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen struct auth_stream_reply *reply;
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen auth_request_log_info(request, request->mech->mech_name, "%s", reason);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen reply = auth_stream_reply_init(pool_datastack_create());
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen auth_stream_reply_add(reply, "FAIL", NULL);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(request->id));
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen auth_stream_reply_add(reply, "reason", reason);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen handler->callback(reply, handler->context);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen auth_request_handler_remove(handler, request);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen}
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainenstatic void auth_request_timeout(struct auth_request *request)
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen{
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen auth_request_handler_remove(request->handler, request);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen}
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainenstatic void auth_request_penalty_finish(struct auth_request *request)
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen{
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen timeout_remove(&request->to_penalty);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen auth_request_initial(request);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen}
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainenstatic void
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainenauth_penalty_callback(unsigned int penalty, struct auth_request *request)
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen{
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen unsigned int secs;
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen request->last_penalty = penalty;
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen if (penalty == 0)
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen auth_request_initial(request);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen else {
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen secs = auth_penalty_to_secs(penalty);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen request->to_penalty = timeout_add(secs * 1000,
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen auth_request_penalty_finish,
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen request);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen }
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen}
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainenbool auth_request_handler_auth_begin(struct auth_request_handler *handler,
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen const char *args)
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen const struct mech_module *mech;
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen struct auth_request *request;
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen const char *const *list, *name, *arg, *initial_resp;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen void *initial_resp_data;
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen unsigned int id;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen buffer_t *buf;
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen /* <id> <mechanism> [...] */
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen list = t_strsplit(args, "\t");
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen if (list[0] == NULL || list[1] == NULL) {
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen i_error("BUG: Authentication client %u "
e8a96ad5c10e9d5c0c4e2e88dd09a38fdb3e34b4Timo Sirainen "sent broken AUTH request", handler->client_pid);
e8a96ad5c10e9d5c0c4e2e88dd09a38fdb3e34b4Timo Sirainen return FALSE;
e8a96ad5c10e9d5c0c4e2e88dd09a38fdb3e34b4Timo Sirainen }
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen id = (unsigned int)strtoul(list[0], NULL, 10);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen mech = mech_module_find(list[1]);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen if (mech == NULL) {
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen /* unsupported mechanism */
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen i_error("BUG: Authentication client %u requested unsupported "
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen "authentication mechanism %s", handler->client_pid,
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen str_sanitize(list[1], MAX_MECH_NAME_LEN));
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen return FALSE;
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen }
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen request = auth_request_new(mech, auth_callback, handler);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen request->handler = handler;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->connect_uid = handler->connect_uid;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->client_pid = handler->client_pid;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->id = id;
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen /* parse optional parameters */
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen initial_resp = NULL;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen for (list += 2; *list != NULL; list++) {
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen arg = strchr(*list, '=');
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen if (arg == NULL) {
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen name = *list;
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen arg = "";
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen } else {
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen name = t_strdup_until(*list, arg);
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen arg++;
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (auth_request_import(request, name, arg))
91233a89f0060f95542ed661683e5d99a50f1778Timo Sirainen ;
91233a89f0060f95542ed661683e5d99a50f1778Timo 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;
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen if (*list != NULL) {
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen i_error("BUG: Authentication client %u "
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen "sent AUTH parameters after 'resp'",
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen handler->client_pid);
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen auth_request_unref(&request);
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen return FALSE;
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo 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",
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen handler->client_pid);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_unref(&request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_request_init(request);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen request->to_abort = timeout_add(AUTH_REQUEST_TIMEOUT * 1000,
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_request_timeout, request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen hash_table_insert(handler->requests, POINTER_CAST(id), request);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->set->ssl_require_client_cert &&
657afb33796f8216c568ad813627da89970760beTimo Sirainen !request->valid_client_cert) {
657afb33796f8216c568ad813627da89970760beTimo Sirainen /* we fail without valid certificate */
48ac75465ae154b1d705f18de6d95045ab714b65Timo Sirainen auth_request_handler_auth_fail(handler, request,
48ac75465ae154b1d705f18de6d95045ab714b65Timo Sirainen "Client didn't present valid SSL certificate");
a72dde3805d0e9148de4caf44d6f4dc167431380Timo Sirainen return TRUE;
a72dde3805d0e9148de4caf44d6f4dc167431380Timo Sirainen }
a72dde3805d0e9148de4caf44d6f4dc167431380Timo Sirainen
a72dde3805d0e9148de4caf44d6f4dc167431380Timo Sirainen /* Empty initial response is a "=" base64 string. Completely empty
a72dde3805d0e9148de4caf44d6f4dc167431380Timo Sirainen string shouldn't really be sent, but at least Exim does it,
a72dde3805d0e9148de4caf44d6f4dc167431380Timo Sirainen so just allow it for backwards compatibility.. */
a72dde3805d0e9148de4caf44d6f4dc167431380Timo Sirainen if (initial_resp != NULL && *initial_resp != '\0') {
a72dde3805d0e9148de4caf44d6f4dc167431380Timo Sirainen size_t len = strlen(initial_resp);
a72dde3805d0e9148de4caf44d6f4dc167431380Timo Sirainen
a72dde3805d0e9148de4caf44d6f4dc167431380Timo Sirainen buf = buffer_create_dynamic(pool_datastack_create(),
a72dde3805d0e9148de4caf44d6f4dc167431380Timo Sirainen MAX_BASE64_DECODED_SIZE(len));
a72dde3805d0e9148de4caf44d6f4dc167431380Timo Sirainen if (base64_decode(initial_resp, len, NULL, buf) < 0) {
a72dde3805d0e9148de4caf44d6f4dc167431380Timo Sirainen auth_request_handler_auth_fail(handler, request,
a72dde3805d0e9148de4caf44d6f4dc167431380Timo Sirainen "Invalid base64 data in initial response");
48ac75465ae154b1d705f18de6d95045ab714b65Timo Sirainen return TRUE;
48ac75465ae154b1d705f18de6d95045ab714b65Timo Sirainen }
48ac75465ae154b1d705f18de6d95045ab714b65Timo Sirainen initial_resp_data =
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen p_malloc(request->pool, I_MAX(buf->used, 1));
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen memcpy(initial_resp_data, buf->data, buf->used);
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen request->initial_response = initial_resp_data;
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen request->initial_response_len = buf->used;
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen }
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen /* handler is referenced until auth_callback is called. */
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen handler->refcount++;
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen /* before we start authenticating, see if we need to wait first */
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen auth_penalty_lookup(auth_penalty, request,
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen auth_penalty_callback);
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen return TRUE;
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen}
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainenbool auth_request_handler_auth_continue(struct auth_request_handler *handler,
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen const char *args)
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen{
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen struct auth_request *request;
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen const char *data;
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen size_t data_len;
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen buffer_t *buf;
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen unsigned int id;
9ed2951bd0bb1878a27437d7c00611b2baadd614Timo Sirainen
6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainen data = strchr(args, '\t');
657afb33796f8216c568ad813627da89970760beTimo Sirainen if (data == NULL) {
7242e1ce7803b83bc82e239ef111b47c1c72dd4bAndrey Panin i_error("BUG: Authentication client sent broken CONT request");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen data++;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen id = (unsigned int)strtoul(args, NULL, 10);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen request = hash_table_lookup(handler->requests, POINTER_CAST(id));
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen if (request == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_stream_reply *reply;
3c296d819c54e21ce05c3d2eeeedc79be42ac593Timo Sirainen
9261dbf0675204898c6557591c7aa376e23a52b2Timo Sirainen reply = auth_stream_reply_init(pool_datastack_create());
5363f51ad46344f4e5952f2fef211a7cf8f95ddcTimo Sirainen auth_stream_reply_add(reply, "FAIL", NULL);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_stream_reply_add(reply, NULL, dec2str(id));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_stream_reply_add(reply, "reason", "Timeouted");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->callback(reply, handler->context);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* accept input only once after mechanism has sent a CONT reply */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (!request->accept_input) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_auth_fail(handler, request,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "Unexpected continuation");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->accept_input = FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen data_len = strlen(data);
48ac75465ae154b1d705f18de6d95045ab714b65Timo Sirainen buf = buffer_create_dynamic(pool_datastack_create(),
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen MAX_BASE64_DECODED_SIZE(data_len));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (base64_decode(data, data_len, NULL, buf) < 0) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_auth_fail(handler, request,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "Invalid base64 data in continued response");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* handler is referenced until auth_callback is called. */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->refcount++;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_continue(request, buf->data, buf->used);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstatic void userdb_callback(enum userdb_result result,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request *request)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
ab122a3bbae3b5fd2aad66e2f2840149d98cee52Timo Sirainen struct auth_request_handler *handler = request->context;
70c181da837ed85fc5b0426c010b65609bda5329Timo Sirainen struct auth_stream_reply *reply;
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen const char *value;
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen i_assert(request->state == AUTH_REQUEST_STATE_USERDB);
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen request->state = AUTH_REQUEST_STATE_FINISHED;
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen if (request->userdb_lookup_failed)
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen result = USERDB_RESULT_INTERNAL_FAILURE;
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen reply = auth_stream_reply_init(pool_datastack_create());
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen switch (result) {
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen case USERDB_RESULT_INTERNAL_FAILURE:
7904d81873b36f8464c96be415881f92518452e6Timo Sirainen auth_stream_reply_add(reply, "FAIL", NULL);
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen auth_stream_reply_add(reply, NULL, dec2str(request->id));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->userdb_lookup_failed) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen value = auth_stream_reply_find(request->userdb_reply,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "reason");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (value != NULL)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_stream_reply_add(reply, "reason", value);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
7904d81873b36f8464c96be415881f92518452e6Timo Sirainen break;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen case USERDB_RESULT_USER_UNKNOWN:
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_stream_reply_add(reply, "NOTFOUND", NULL);
b5322c8270616a28f2e65cb3a09580c410bb0941Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(request->id));
b5322c8270616a28f2e65cb3a09580c410bb0941Timo Sirainen break;
b5322c8270616a28f2e65cb3a09580c410bb0941Timo Sirainen case USERDB_RESULT_OK:
b5322c8270616a28f2e65cb3a09580c410bb0941Timo Sirainen auth_stream_reply_add(reply, "USER", NULL);
b5322c8270616a28f2e65cb3a09580c410bb0941Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(request->id));
b5322c8270616a28f2e65cb3a09580c410bb0941Timo Sirainen if (request->master_user != NULL) {
9ed2951bd0bb1878a27437d7c00611b2baadd614Timo Sirainen auth_stream_reply_add(request->userdb_reply,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "master_user",
d99107ddf4d9bccb710994482daf65276a9d6321Timo Sirainen request->master_user);
48ac75465ae154b1d705f18de6d95045ab714b65Timo Sirainen }
3ccab0bac68040f179a7de45c516cec258e28fdbTimo Sirainen auth_stream_reply_import(reply,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_stream_reply_export(request->userdb_reply));
9ed2951bd0bb1878a27437d7c00611b2baadd614Timo Sirainen break;
258ff7d4f03dd9d29eca3664e4acacdf7f528234Timo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->master_callback(reply, request->master);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_master_connection_unref(&request->master);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_unref(&request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_unref(&handler);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
4f2248a8a70985c7295afc3bf91c848e81d740d9Timo Sirainen
4f2248a8a70985c7295afc3bf91c848e81d740d9Timo Sirainenvoid auth_request_handler_master_request(struct auth_request_handler *handler,
4f2248a8a70985c7295afc3bf91c848e81d740d9Timo Sirainen struct auth_master_connection *master,
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen unsigned int id,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen unsigned int client_id)
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request *request;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_stream_reply *reply;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen reply = auth_stream_reply_init(pool_datastack_create());
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request = hash_table_lookup(handler->requests, POINTER_CAST(client_id));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request == NULL) {
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen i_error("Master request %u.%u not found",
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen handler->client_pid, client_id);
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen auth_stream_reply_add(reply, "FAIL", NULL);
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen auth_stream_reply_add(reply, NULL, dec2str(id));
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen handler->master_callback(reply, master);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen auth_request_ref(request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_remove(handler, request);
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen if (request->state != AUTH_REQUEST_STATE_FINISHED ||
2c8ff32886e56a5e037169c9ebef4219f85a5629Timo Sirainen !request->successful) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_error("Master requested unfinished authentication request "
657afb33796f8216c568ad813627da89970760beTimo Sirainen "%u.%u", handler->client_pid, client_id);
657afb33796f8216c568ad813627da89970760beTimo Sirainen auth_stream_reply_add(reply, "FAIL", NULL);
6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainen auth_stream_reply_add(reply, NULL, dec2str(id));
6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainen handler->master_callback(reply, master);
657afb33796f8216c568ad813627da89970760beTimo Sirainen auth_request_unref(&request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen } else {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* the request isn't being referenced anywhere anymore,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen so we can do a bit of kludging.. replace the request's
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen old client_id with master's id. */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->state = AUTH_REQUEST_STATE_USERDB;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->id = id;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->context = handler;
c53a3c54d388c0031aaa642e6b14d46eb86d9485Timo Sirainen request->master = master;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* master and handler are referenced until userdb_callback i
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen s called. */
ccb77e2f63626ec46e5745ef4f38baa8e8e504fcTimo Sirainen auth_master_connection_ref(master);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->refcount++;
3ccab0bac68040f179a7de45c516cec258e28fdbTimo Sirainen auth_request_lookup_user(request, userdb_callback);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainenvoid auth_request_handler_flush_failures(bool flush_all)
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen{
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen struct auth_request **auth_requests, *auth_request;
cac6735a6cd73f2b815a1f3c1e21855075e7c81eTimo Sirainen unsigned int i, count;
cac6735a6cd73f2b815a1f3c1e21855075e7c81eTimo Sirainen time_t diff;
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen count = aqueue_count(auth_failures);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (count == 0) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (to_auth_failures != NULL)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen timeout_remove(&to_auth_failures);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_requests = array_idx_modifiable(&auth_failures_arr, 0);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen for (i = 0; i < count; i++) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request = auth_requests[aqueue_idx(auth_failures, 0)];
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* FIXME: assumess that failure_delay is always the same. */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen diff = ioloop_time - auth_request->last_access;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (diff < (time_t)auth_request->set->failure_delay &&
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen !flush_all)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen break;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen aqueue_delete_tail(auth_failures);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_assert(auth_request->state == AUTH_REQUEST_STATE_FINISHED);
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen auth_request->callback(auth_request,
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen AUTH_CLIENT_RESULT_FAILURE, NULL, 0);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_unref(&auth_request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstatic void auth_failure_timeout(void *context ATTR_UNUSED)
0f39a57760d93cddbce3ca43096d78e0fe2f42fdTimo Sirainen{
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen auth_request_handler_flush_failures(FALSE);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
50782de8a9d5ebe11ee61496b4e695a1d3875230Timo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainenvoid auth_request_handler_init(void)
3313a51ef9b245248d672c20f930c52a577a42f7Timo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_array_init(&auth_failures_arr, 128);
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen auth_failures = aqueue_init(&auth_failures_arr.arr);
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen}
401b0787fff2dc986a5321ddb32acb1947ff66b0Timo Sirainen
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainenvoid auth_request_handler_deinit(void)
6fabfb7bbfd88d0c1de66981e52850f26067623bTimo Sirainen{
6fabfb7bbfd88d0c1de66981e52850f26067623bTimo Sirainen auth_request_handler_flush_failures(TRUE);
6fabfb7bbfd88d0c1de66981e52850f26067623bTimo Sirainen array_free(&auth_failures_arr);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen aqueue_deinit(&auth_failures);
0f39a57760d93cddbce3ca43096d78e0fe2f42fdTimo Sirainen
0f39a57760d93cddbce3ca43096d78e0fe2f42fdTimo Sirainen if (to_auth_failures != NULL)
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen timeout_remove(&to_auth_failures);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen}
3313a51ef9b245248d672c20f930c52a577a42f7Timo Sirainen