Mercurial > dovecot > core-2.2
view src/lib-storage/mail-user.c @ 9235:2e2b957f1cca HEAD
Implemented anvil service, which is used to implement mail_max_userip_connections.
author | Timo Sirainen <tss@iki.fi> |
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date | Tue, 05 May 2009 21:28:34 -0400 |
parents | bf448752f6c4 |
children | 0fb684847ae1 |
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/* Copyright (c) 2008-2009 Dovecot authors, see the included COPYING file */ #include "lib.h" #include "array.h" #include "hostpid.h" #include "network.h" #include "str.h" #include "strescape.h" #include "var-expand.h" #include "settings-parser.h" #include "auth-master.h" #include "master-service.h" #include "mail-storage-settings.h" #include "mail-namespace.h" #include "mail-storage.h" #include "mail-user.h" #include <stdlib.h> struct mail_user_module_register mail_user_module_register = { 0 }; void (*hook_mail_user_created)(struct mail_user *user) = NULL; static struct auth_master_connection *auth_master_conn; static void mail_user_deinit_base(struct mail_user *user) { mail_namespaces_deinit(&user->namespaces); pool_unref(&user->pool); } struct mail_user *mail_user_alloc(const char *username, const struct mail_user_settings *set) { struct mail_user *user; pool_t pool; i_assert(username != NULL); i_assert(*username != '\0'); pool = pool_alloconly_create("mail user", 4096); user = p_new(pool, struct mail_user, 1); user->pool = pool; user->refcount = 1; user->username = p_strdup(pool, username); user->unexpanded_set = settings_dup(&mail_user_setting_parser_info, set, pool); user->set = settings_dup(&mail_user_setting_parser_info, set, pool); user->v.deinit = mail_user_deinit_base; p_array_init(&user->module_contexts, user->pool, 5); return user; } static int mail_user_expand_plugins_envs(struct mail_user *user, const char **error_r) { const char **envs, *home; string_t *str; unsigned int i, count; if (!array_is_created(&user->set->plugin_envs)) return 0; str = t_str_new(256); envs = array_get_modifiable(&user->set->plugin_envs, &count); i_assert((count % 2) == 0); for (i = 0; i < count; i += 2) { if (user->_home == NULL && var_has_key(envs[i+1], 'h', "home") && mail_user_get_home(user, &home) <= 0) { *error_r = t_strdup_printf( "userdb didn't return a home directory, " "but plugin setting %s used it (%%h): %s", envs[i], envs[i+1]); return -1; } str_truncate(str, 0); var_expand(str, envs[i+1], mail_user_var_expand_table(user)); envs[i+1] = p_strdup(user->pool, str_c(str)); } return 0; } int mail_user_init(struct mail_user *user, const char **error_r) { const struct mail_storage_settings *mail_set; const char *home, *key, *value; if (user->_home == NULL && settings_vars_have_key(&mail_user_setting_parser_info, user->set, 'h', "home", &key, &value) && mail_user_get_home(user, &home) <= 0) { *error_r = t_strdup_printf( "userdb didn't return a home directory, " "but %s used it (%%h): %s", key, value); return -1; } settings_var_expand(&mail_user_setting_parser_info, user->set, user->pool, mail_user_var_expand_table(user)); if (mail_user_expand_plugins_envs(user, error_r) < 0) return -1; mail_set = mail_user_set_get_storage_set(user->set); user->mail_debug = mail_set->mail_debug; user->initialized = TRUE; if (hook_mail_user_created != NULL) hook_mail_user_created(user); return 0; } void mail_user_ref(struct mail_user *user) { i_assert(user->refcount > 0); user->refcount++; } void mail_user_unref(struct mail_user **_user) { struct mail_user *user = *_user; i_assert(user->refcount > 0); *_user = NULL; if (--user->refcount == 0) user->v.deinit(user); } struct mail_user *mail_user_find(struct mail_user *user, const char *name) { struct mail_namespace *ns; for (ns = user->namespaces; ns != NULL; ns = ns->next) { if (ns->owner != NULL && strcmp(ns->owner->username, name) == 0) return ns->owner; } return NULL; } void mail_user_set_vars(struct mail_user *user, uid_t uid, const char *service, const struct ip_addr *local_ip, const struct ip_addr *remote_ip) { user->uid = uid; user->service = p_strdup(user->pool, service); if (local_ip != NULL && local_ip->family != 0) { user->local_ip = p_new(user->pool, struct ip_addr, 1); *user->local_ip = *local_ip; } if (remote_ip != NULL && remote_ip->family != 0) { user->remote_ip = p_new(user->pool, struct ip_addr, 1); *user->remote_ip = *remote_ip; } } const struct var_expand_table * mail_user_var_expand_table(struct mail_user *user) { static struct var_expand_table static_tab[] = { { 'u', NULL, "user" }, { 'n', NULL, "username" }, { 'd', NULL, "domain" }, { 's', NULL, "service" }, { 'h', NULL, "home" }, { 'l', NULL, "lip" }, { 'r', NULL, "rip" }, { 'p', NULL, "pid" }, { 'i', NULL, "uid" }, { '\0', NULL, NULL } }; struct var_expand_table *tab; if (user->var_expand_table != NULL) return user->var_expand_table; tab = p_malloc(user->pool, sizeof(static_tab)); memcpy(tab, static_tab, sizeof(static_tab)); tab[0].value = user->username; tab[1].value = p_strdup(user->pool, t_strcut(user->username, '@')); tab[2].value = strchr(user->username, '@'); if (tab[2].value != NULL) tab[2].value++; tab[3].value = user->service; tab[4].value = user->_home; /* don't look it up unless we need it */ tab[5].value = user->local_ip == NULL ? NULL : p_strdup(user->pool, net_ip2addr(user->local_ip)); tab[6].value = user->remote_ip == NULL ? NULL : p_strdup(user->pool, net_ip2addr(user->remote_ip)); tab[7].value = my_pid; tab[8].value = p_strdup(user->pool, dec2str(user->uid)); user->var_expand_table = tab; return user->var_expand_table; } void mail_user_set_home(struct mail_user *user, const char *home) { user->_home = p_strdup(user->pool, home); user->home_looked_up = TRUE; } void mail_user_add_namespace(struct mail_user *user, struct mail_namespace **namespaces) { struct mail_namespace **tmp, *next, *ns = *namespaces; for (; ns != NULL; ns = next) { next = ns->next; tmp = &user->namespaces; for (; *tmp != NULL; tmp = &(*tmp)->next) { if (strlen(ns->prefix) < strlen((*tmp)->prefix)) break; } ns->next = *tmp; *tmp = ns; } *namespaces = user->namespaces; } void mail_user_drop_useless_namespaces(struct mail_user *user) { struct mail_namespace *ns, *next; for (ns = user->namespaces; ns != NULL; ns = next) { next = ns->next; if ((ns->flags & NAMESPACE_FLAG_USABLE) == 0 && (ns->flags & NAMESPACE_FLAG_AUTOCREATED) != 0) mail_namespace_destroy(ns); } } const char *mail_user_home_expand(struct mail_user *user, const char *path) { (void)mail_user_try_home_expand(user, &path); return path; } int mail_user_get_home(struct mail_user *user, const char **home_r) { struct auth_user_reply reply; pool_t userdb_pool; int ret; if (user->home_looked_up) { *home_r = user->_home; return user->_home != NULL ? 1 : 0; } userdb_pool = pool_alloconly_create("userdb lookup", 512); ret = auth_master_user_lookup(auth_master_conn, user->username, "lib-storage", userdb_pool, &reply); if (ret < 0) *home_r = NULL; else { user->_home = ret == 0 ? NULL : p_strdup(user->pool, reply.home); user->home_looked_up = TRUE; ret = user->_home != NULL ? 1 : 0; *home_r = user->_home; } pool_unref(&userdb_pool); return ret; } const char *mail_user_plugin_getenv(struct mail_user *user, const char *name) { return mail_user_set_plugin_getenv(user->set, name); } const char *mail_user_set_plugin_getenv(const struct mail_user_settings *set, const char *name) { const char *const *envs; unsigned int i, count; if (!array_is_created(&set->plugin_envs)) return NULL; envs = array_get(&set->plugin_envs, &count); for (i = 0; i < count; i += 2) { if (strcmp(envs[i], name) == 0) return envs[i+1]; } return NULL; } int mail_user_try_home_expand(struct mail_user *user, const char **pathp) { const char *home, *path = *pathp; if (mail_user_get_home(user, &home) < 0) return -1; if (path[0] == '~' && (path[1] == '/' || path[1] == '\0')) { if (home == NULL) return -1; *pathp = t_strconcat(home, path + 1, NULL); } return 0; } const char *mail_user_get_temp_prefix(struct mail_user *user) { struct mail_namespace *ns; if (user->_home != NULL) { return t_strconcat(user->_home, "/.temp.", my_hostname, ".", my_pid, ".", NULL); } ns = mail_namespace_find_inbox(user->namespaces); if (ns == NULL) ns = user->namespaces; return mail_storage_get_temp_prefix(ns->storage); } const char *mail_user_get_anvil_userip_ident(struct mail_user *user) { if (user->remote_ip == NULL) return NULL; return t_strconcat(net_ip2addr(user->remote_ip), "/", str_tabescape(user->username), NULL); } void mail_users_init(const char *auth_socket_path, bool debug) { auth_master_conn = auth_master_init(auth_socket_path, debug); } void mail_users_deinit(void) { auth_master_deinit(&auth_master_conn); }