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-rw-r--r--src/doveadm/doveadm-auth-server.c517
1 files changed, 517 insertions, 0 deletions
diff --git a/src/doveadm/doveadm-auth-server.c b/src/doveadm/doveadm-auth-server.c
new file mode 100644
index 0000000..f50fa5f
--- /dev/null
+++ b/src/doveadm/doveadm-auth-server.c
@@ -0,0 +1,517 @@
+/* Copyright (c) 2016-2018 Dovecot authors, see the included COPYING file */
+
+#include "lib.h"
+#include "ioloop.h"
+#include "array.h"
+#include "str.h"
+#include "var-expand.h"
+#include "wildcard-match.h"
+#include "settings-parser.h"
+#include "master-service.h"
+#include "master-service-settings.h"
+#include "auth-client.h"
+#include "auth-master.h"
+#include "master-auth.h"
+#include "master-login-auth.h"
+#include "mail-storage-service.h"
+#include "mail-user.h"
+#include "ostream.h"
+#include "json-parser.h"
+#include "doveadm.h"
+#include "doveadm-print.h"
+
+#include <stdio.h>
+#include <unistd.h>
+
+struct authtest_input {
+ pool_t pool;
+ const char *username;
+ const char *master_user;
+ const char *password;
+ struct auth_user_info info;
+ bool success;
+
+ struct auth_client_request *request;
+ struct master_auth_request master_auth_req;
+
+ unsigned int auth_id;
+ unsigned int auth_pid;
+ const char *auth_cookie;
+
+};
+
+static struct auth_master_connection *
+doveadm_get_auth_master_conn(const char *auth_socket_path)
+{
+ enum auth_master_flags flags = 0;
+
+ if (doveadm_debug)
+ flags |= AUTH_MASTER_FLAG_DEBUG;
+ return auth_master_init(auth_socket_path, flags);
+}
+
+static int
+cmd_user_input(struct auth_master_connection *conn,
+ const struct authtest_input *input,
+ const char *show_field, bool userdb)
+{
+ const char *lookup_name = userdb ? "userdb lookup" : "passdb lookup";
+ pool_t pool;
+ const char *updated_username = NULL, *const *fields, *p;
+ int ret;
+
+ pool = pool_alloconly_create("auth master lookup", 1024);
+
+ if (userdb) {
+ ret = auth_master_user_lookup(conn, input->username, &input->info,
+ pool, &updated_username, &fields);
+ } else {
+ ret = auth_master_pass_lookup(conn, input->username, &input->info,
+ pool, &fields);
+ }
+ if (ret < 0) {
+ const char *msg;
+ if (fields[0] == NULL) {
+ msg = t_strdup_printf("\"error\":\"%s failed\"",
+ lookup_name);
+ } else {
+ msg = t_strdup_printf("\"error\":\"%s failed: %s\"",
+ lookup_name,
+ fields[0]);
+ }
+ o_stream_nsend_str(doveadm_print_ostream, msg);
+ ret = -1;
+ } else if (ret == 0) {
+ o_stream_nsend_str(doveadm_print_ostream,
+ t_strdup_printf("\"error\":\"%s: user doesn't exist\"",
+ lookup_name));
+ } else if (show_field != NULL) {
+ size_t show_field_len = strlen(show_field);
+ string_t *json_field = t_str_new(show_field_len+1);
+ json_append_escaped(json_field, show_field);
+ o_stream_nsend_str(doveadm_print_ostream, t_strdup_printf("\"%s\":", str_c(json_field)));
+ for (; *fields != NULL; fields++) {
+ if (strncmp(*fields, show_field, show_field_len) == 0 &&
+ (*fields)[show_field_len] == '=') {
+ string_t *jsonval = t_str_new(32);
+ json_append_escaped(jsonval, *fields + show_field_len + 1);
+ o_stream_nsend_str(doveadm_print_ostream, "\"");
+ o_stream_nsend_str(doveadm_print_ostream, str_c(jsonval));
+ o_stream_nsend_str(doveadm_print_ostream, "\"");
+ }
+ }
+ } else {
+ string_t *jsonval = t_str_new(64);
+ o_stream_nsend_str(doveadm_print_ostream, "\"source\":\"");
+ o_stream_nsend_str(doveadm_print_ostream, userdb ? "userdb\"" : "passdb\"");
+
+ if (updated_username != NULL) {
+ o_stream_nsend_str(doveadm_print_ostream, ",\"updated_username\":\"");
+ str_truncate(jsonval, 0);
+ json_append_escaped(jsonval, updated_username);
+ o_stream_nsend_str(doveadm_print_ostream, str_c(jsonval));
+ o_stream_nsend_str(doveadm_print_ostream, "\"");
+ }
+ for (; *fields != NULL; fields++) {
+ const char *field = *fields;
+ if (*field == '\0') continue;
+ p = strchr(*fields, '=');
+ str_truncate(jsonval, 0);
+ if (p != NULL) {
+ field = t_strcut(*fields, '=');
+ }
+ str_truncate(jsonval, 0);
+ json_append_escaped(jsonval, field);
+ o_stream_nsend_str(doveadm_print_ostream, ",\"");
+ o_stream_nsend_str(doveadm_print_ostream, str_c(jsonval));
+ o_stream_nsend_str(doveadm_print_ostream, "\":");
+ if (p != NULL) {
+ str_truncate(jsonval, 0);
+ json_append_escaped(jsonval, p+1);
+ o_stream_nsend_str(doveadm_print_ostream, "\"");
+ o_stream_nsend_str(doveadm_print_ostream, str_c(jsonval));
+ o_stream_nsend_str(doveadm_print_ostream, "\"");
+ } else {
+ o_stream_nsend_str(doveadm_print_ostream, "true");
+ }
+ }
+ }
+ return ret;
+}
+
+static void auth_user_info_parse(struct auth_user_info *info, const char *arg)
+{
+ if (str_begins(arg, "service="))
+ info->service = arg + 8;
+ else if (str_begins(arg, "lip=")) {
+ if (net_addr2ip(arg + 4, &info->local_ip) < 0)
+ i_fatal("lip: Invalid ip");
+ } else if (str_begins(arg, "rip=")) {
+ if (net_addr2ip(arg + 4, &info->remote_ip) < 0)
+ i_fatal("rip: Invalid ip");
+ } else if (str_begins(arg, "lport=")) {
+ if (net_str2port(arg + 6, &info->local_port) < 0)
+ i_fatal("lport: Invalid port number");
+ } else if (str_begins(arg, "rport=")) {
+ if (net_str2port(arg + 6, &info->remote_port) < 0)
+ i_fatal("rport: Invalid port number");
+ } else {
+ i_fatal("Unknown -x argument: %s", arg);
+ }
+}
+
+static void
+cmd_user_list(struct auth_master_connection *conn,
+ const struct authtest_input *input,
+ char *const *users)
+{
+ struct auth_master_user_list_ctx *ctx;
+ const char *username, *user_mask = "*";
+ string_t *escaped = t_str_new(256);
+ bool first = TRUE;
+ unsigned int i;
+
+ if (users[0] != NULL && users[1] == NULL)
+ user_mask = users[0];
+
+ o_stream_nsend_str(doveadm_print_ostream, "{\"userList\":[");
+
+ ctx = auth_master_user_list_init(conn, user_mask, &input->info);
+ while ((username = auth_master_user_list_next(ctx)) != NULL) {
+ for (i = 0; users[i] != NULL; i++) {
+ if (wildcard_match_icase(username, users[i]))
+ break;
+ }
+ if (users[i] != NULL) {
+ if (first)
+ first = FALSE;
+ else
+ o_stream_nsend_str(doveadm_print_ostream, ",");
+ str_truncate(escaped, 0);
+ str_append_c(escaped, '"');
+ json_append_escaped(escaped, username);
+ str_append_c(escaped, '"');
+ o_stream_nsend(doveadm_print_ostream, escaped->data, escaped->used);
+ }
+ }
+ if (auth_master_user_list_deinit(&ctx) < 0) {
+ i_error("user listing failed");
+ doveadm_exit_code = EX_DATAERR;
+ }
+
+ o_stream_nsend_str(doveadm_print_ostream, "]}");
+}
+
+static void cmd_auth_cache_flush(struct doveadm_cmd_context *cctx)
+{
+ const char *master_socket_path, *const *users;
+ struct auth_master_connection *conn;
+ unsigned int count;
+
+ if (!doveadm_cmd_param_str(cctx, "socket-path", &master_socket_path)) {
+ master_socket_path = t_strconcat(doveadm_settings->base_dir,
+ "/auth-master", NULL);
+ }
+ if (!doveadm_cmd_param_array(cctx, "user", &users))
+ i_fatal("Missing user parameter");
+
+ conn = doveadm_get_auth_master_conn(master_socket_path);
+ if (auth_master_cache_flush(conn, users, &count) < 0) {
+ i_error("Cache flush failed");
+ doveadm_exit_code = EX_TEMPFAIL;
+ } else {
+ doveadm_print_init("formatted");
+ doveadm_print_formatted_set_format("%{entries} cache entries flushed\n");
+ doveadm_print_header_simple("entries");
+ doveadm_print_num(count);
+ }
+ auth_master_deinit(&conn);
+}
+
+static void cmd_user_mail_input_field(const char *key, const char *value,
+ const char *show_field, bool *first)
+{
+ string_t *jvalue = t_str_new(128);
+ if (show_field != NULL && strcmp(show_field, key) != 0) return;
+ /* do not emit comma on first field. we need to keep track
+ of when the first field actually gets printed as it
+ might change due to show_field */
+ if (!*first)
+ o_stream_nsend_str(doveadm_print_ostream, ",");
+ *first = FALSE;
+ json_append_escaped(jvalue, key);
+ o_stream_nsend_str(doveadm_print_ostream, "\"");
+ o_stream_nsend_str(doveadm_print_ostream, str_c(jvalue));
+ o_stream_nsend_str(doveadm_print_ostream, "\":\"");
+ str_truncate(jvalue, 0);
+ json_append_escaped(jvalue, value);
+ o_stream_nsend_str(doveadm_print_ostream, str_c(jvalue));
+ o_stream_nsend_str(doveadm_print_ostream, "\"");
+}
+
+static void
+cmd_user_mail_print_fields(const struct authtest_input *input,
+ struct mail_user *user,
+ const char *const *userdb_fields,
+ const char *show_field)
+{
+ const struct mail_storage_settings *mail_set;
+ const char *key, *value;
+ unsigned int i;
+ bool first = TRUE;
+
+ if (strcmp(input->username, user->username) != 0)
+ cmd_user_mail_input_field("user", user->username, show_field, &first);
+ cmd_user_mail_input_field("uid", user->set->mail_uid, show_field, &first);
+ cmd_user_mail_input_field("gid", user->set->mail_gid, show_field, &first);
+ cmd_user_mail_input_field("home", user->set->mail_home, show_field, &first);
+
+ mail_set = mail_user_set_get_storage_set(user);
+ cmd_user_mail_input_field("mail", mail_set->mail_location, show_field, &first);
+
+ if (userdb_fields != NULL) {
+ for (i = 0; userdb_fields[i] != NULL; i++) {
+ value = strchr(userdb_fields[i], '=');
+ if (value != NULL)
+ key = t_strdup_until(userdb_fields[i], value++);
+ else {
+ key = userdb_fields[i];
+ value = "";
+ }
+ if (strcmp(key, "uid") != 0 &&
+ strcmp(key, "gid") != 0 &&
+ strcmp(key, "home") != 0 &&
+ strcmp(key, "mail") != 0 &&
+ *key != '\0') {
+ cmd_user_mail_input_field(key, value, show_field, &first);
+ }
+ }
+ }
+}
+
+static int
+cmd_user_mail_input(struct mail_storage_service_ctx *storage_service,
+ const struct authtest_input *input,
+ const char *show_field, const char *expand_field)
+{
+ struct mail_storage_service_input service_input;
+ struct mail_storage_service_user *service_user;
+ struct mail_user *user;
+ const char *error, *const *userdb_fields;
+ pool_t pool;
+ int ret;
+
+ i_zero(&service_input);
+ service_input.module = "mail";
+ service_input.service = input->info.service;
+ service_input.username = input->username;
+ service_input.local_ip = input->info.local_ip;
+ service_input.local_port = input->info.local_port;
+ service_input.remote_ip = input->info.remote_ip;
+ service_input.remote_port = input->info.remote_port;
+ service_input.debug = input->info.debug;
+
+ pool = pool_alloconly_create("userdb fields", 1024);
+ mail_storage_service_save_userdb_fields(storage_service, pool,
+ &userdb_fields);
+
+ if ((ret = mail_storage_service_lookup_next(storage_service, &service_input,
+ &service_user, &user,
+ &error)) <= 0) {
+ pool_unref(&pool);
+ if (ret < 0)
+ return -1;
+ string_t *username = t_str_new(32);
+ json_append_escaped(username, input->username);
+ o_stream_nsend_str(doveadm_print_ostream,
+ t_strdup_printf("\"error\":\"userdb lookup: user %s doesn't exist\"", str_c(username))
+ );
+ return 0;
+ }
+
+ if (expand_field == NULL)
+ cmd_user_mail_print_fields(input, user, userdb_fields, show_field);
+ else {
+ string_t *str = t_str_new(128);
+ if (var_expand_with_funcs(str, expand_field,
+ mail_user_var_expand_table(user),
+ mail_user_var_expand_func_table, user,
+ &error) <= 0) {
+ string_t *str = t_str_new(128);
+ str_printfa(str, "\"error\":\"Failed to expand field: ");
+ json_append_escaped(str, error);
+ str_append_c(str, '"');
+ o_stream_nsend(doveadm_print_ostream, str_data(str), str_len(str));
+ } else {
+ string_t *value = t_str_new(128);
+ json_append_escaped(value, expand_field);
+ o_stream_nsend_str(doveadm_print_ostream, "\"");
+ o_stream_nsend_str(doveadm_print_ostream, str_c(value));
+ o_stream_nsend_str(doveadm_print_ostream, "\":\"");
+ str_truncate(value, 0);
+ json_append_escaped(value, str_c(str));
+ o_stream_nsend_str(doveadm_print_ostream, str_c(value));
+ o_stream_nsend_str(doveadm_print_ostream, "\"");
+ }
+
+ }
+
+ mail_user_deinit(&user);
+ mail_storage_service_user_unref(&service_user);
+ pool_unref(&pool);
+ return 1;
+}
+
+static void cmd_user_ver2(struct doveadm_cmd_context *cctx)
+{
+ const char * const *optval;
+
+ const char *auth_socket_path = NULL;
+ struct auth_master_connection *conn;
+ struct authtest_input input;
+ const char *show_field = NULL, *expand_field = NULL;
+ struct mail_storage_service_ctx *storage_service = NULL;
+ bool have_wildcards, userdb_only = FALSE, first = TRUE;
+ int ret;
+
+ if (!doveadm_cmd_param_str(cctx, "socket-path", &auth_socket_path))
+ auth_socket_path = doveadm_settings->auth_socket_path;
+
+ (void)doveadm_cmd_param_str(cctx, "expand-field", &expand_field);
+ (void)doveadm_cmd_param_str(cctx, "field", &show_field);
+ (void)doveadm_cmd_param_bool(cctx, "userdb-only", &userdb_only);
+
+ i_zero(&input);
+ if (doveadm_cmd_param_array(cctx, "auth-info", &optval))
+ for(;*optval != NULL; optval++)
+ auth_user_info_parse(&input.info, *optval);
+
+ if (!doveadm_cmd_param_array(cctx, "user-mask", &optval)) {
+ doveadm_exit_code = EX_USAGE;
+ i_error("No user(s) specified");
+ return;
+ }
+
+ if (expand_field != NULL && userdb_only) {
+ i_error("-e can't be used with -u");
+ doveadm_exit_code = EX_USAGE;
+ return;
+ }
+ if (expand_field != NULL && show_field != NULL) {
+ i_error("-e can't be used with -f");
+ doveadm_exit_code = EX_USAGE;
+ return;
+ }
+
+ conn = doveadm_get_auth_master_conn(auth_socket_path);
+
+ have_wildcards = FALSE;
+
+ for(const char *const *val = optval; *val != NULL; val++) {
+ if (strchr(*val, '*') != NULL ||
+ strchr(*val, '?') != NULL) {
+ have_wildcards = TRUE;
+ break;
+ }
+ }
+
+ if (have_wildcards) {
+ cmd_user_list(conn, &input, (char*const*)optval);
+ auth_master_deinit(&conn);
+ return;
+ }
+
+ if (!userdb_only) {
+ storage_service = mail_storage_service_init(master_service, NULL,
+ MAIL_STORAGE_SERVICE_FLAG_USERDB_LOOKUP |
+ MAIL_STORAGE_SERVICE_FLAG_NO_CHDIR |
+ MAIL_STORAGE_SERVICE_FLAG_NO_LOG_INIT |
+ MAIL_STORAGE_SERVICE_FLAG_NO_PLUGINS |
+ MAIL_STORAGE_SERVICE_FLAG_NO_NAMESPACES |
+ MAIL_STORAGE_SERVICE_FLAG_NO_RESTRICT_ACCESS);
+ mail_storage_service_set_auth_conn(storage_service, conn);
+ conn = NULL;
+ }
+
+ string_t *json = t_str_new(64);
+ o_stream_nsend_str(doveadm_print_ostream, "{");
+
+ input.info.local_ip = cctx->local_ip;
+ input.info.local_port = cctx->local_port;
+ input.info.remote_ip = cctx->remote_ip;
+ input.info.remote_port = cctx->remote_port;
+
+ for(const char *const *val = optval; *val != NULL; val++) {
+ str_truncate(json, 0);
+ json_append_escaped(json, *val);
+
+ input.username = *val;
+ if (first)
+ first = FALSE;
+ else
+ o_stream_nsend_str(doveadm_print_ostream, ",");
+
+ o_stream_nsend_str(doveadm_print_ostream, "\"");
+ o_stream_nsend_str(doveadm_print_ostream, str_c(json));
+ o_stream_nsend_str(doveadm_print_ostream, "\"");
+ o_stream_nsend_str(doveadm_print_ostream, ":{");
+
+ ret = !userdb_only ?
+ cmd_user_mail_input(storage_service, &input, show_field, expand_field) :
+ cmd_user_input(conn, &input, show_field, TRUE);
+
+ o_stream_nsend_str(doveadm_print_ostream, "}");
+
+ switch (ret) {
+ case -1:
+ doveadm_exit_code = EX_TEMPFAIL;
+ break;
+ case 0:
+ doveadm_exit_code = EX_NOUSER;
+ break;
+ }
+ }
+
+ o_stream_nsend_str(doveadm_print_ostream,"}");
+
+ if (storage_service != NULL)
+ mail_storage_service_deinit(&storage_service);
+ if (conn != NULL)
+ auth_master_deinit(&conn);
+}
+
+static
+struct doveadm_cmd_ver2 doveadm_cmd_auth_server[] = {
+{
+ .name = "auth cache flush",
+ .cmd = cmd_auth_cache_flush,
+ .usage = "[-a <master socket path>] [<user> [...]]",
+DOVEADM_CMD_PARAMS_START
+DOVEADM_CMD_PARAM('a', "socket-path", CMD_PARAM_STR, 0)
+DOVEADM_CMD_PARAM('\0', "user", CMD_PARAM_ARRAY, CMD_PARAM_FLAG_POSITIONAL)
+DOVEADM_CMD_PARAMS_END
+},
+{
+ .name = "user",
+ .cmd = cmd_user_ver2,
+ .usage = "[-a <userdb socket path>] [-x <auth info>] [-f field] [-e <value>] [-u] <user mask> [...]",
+ .flags = CMD_FLAG_NO_PRINT,
+DOVEADM_CMD_PARAMS_START
+DOVEADM_CMD_PARAM('a', "socket-path", CMD_PARAM_STR, 0)
+DOVEADM_CMD_PARAM('x', "auth-info", CMD_PARAM_ARRAY, 0)
+DOVEADM_CMD_PARAM('f', "field", CMD_PARAM_STR, 0)
+DOVEADM_CMD_PARAM('e', "expand-field", CMD_PARAM_STR, 0)
+DOVEADM_CMD_PARAM('u', "userdb-only", CMD_PARAM_BOOL, 0)
+DOVEADM_CMD_PARAM('\0', "user-mask", CMD_PARAM_ARRAY, CMD_PARAM_FLAG_POSITIONAL)
+DOVEADM_CMD_PARAMS_END
+}
+};
+
+void doveadm_register_auth_server_commands(void)
+{
+ unsigned int i;
+
+ for (i = 0; i < N_ELEMENTS(doveadm_cmd_auth_server); i++) {
+ doveadm_cmd_register_ver2(&doveadm_cmd_auth_server[i]);
+ }
+}