diff options
author | Arno Töll <arno@debian.org> | 2012-11-21 23:03:44 +0100 |
---|---|---|
committer | Arno Töll <arno@debian.org> | 2012-11-21 23:03:44 +0100 |
commit | c99b717062c6228c4ac6df3831702f81c9806df4 (patch) | |
tree | 8cc83ebb36aa5b7f8691152db83071784fbfc1c7 /src/mod_auth.c | |
parent | 1b24d86e6b2179692e60091dec59f797cd308b9e (diff) | |
download | lighttpd-c99b717062c6228c4ac6df3831702f81c9806df4.tar.gz |
Imported Upstream version 1.4.13~r1370upstream/1.4.13_r1370
Diffstat (limited to 'src/mod_auth.c')
-rw-r--r-- | src/mod_auth.c | 248 |
1 files changed, 124 insertions, 124 deletions
diff --git a/src/mod_auth.c b/src/mod_auth.c index d7e8276..b075a2b 100644 --- a/src/mod_auth.c +++ b/src/mod_auth.c @@ -17,79 +17,79 @@ handler_t auth_ldap_init(server *srv, mod_auth_plugin_config *s); /** * the basic and digest auth framework - * + * * - config handling * - protocol handling - * - * http_auth.c - * http_auth_digest.c - * + * + * http_auth.c + * http_auth_digest.c + * * do the real work */ INIT_FUNC(mod_auth_init) { mod_auth_plugin_data *p; - + p = calloc(1, sizeof(*p)); - + p->tmp_buf = buffer_init(); - + p->auth_user = buffer_init(); #ifdef USE_LDAP p->ldap_filter = buffer_init(); #endif - + return p; } FREE_FUNC(mod_auth_free) { mod_auth_plugin_data *p = p_d; - + UNUSED(srv); if (!p) return HANDLER_GO_ON; - + buffer_free(p->tmp_buf); buffer_free(p->auth_user); #ifdef USE_LDAP buffer_free(p->ldap_filter); #endif - + if (p->config_storage) { size_t i; for (i = 0; i < srv->config_context->used; i++) { mod_auth_plugin_config *s = p->config_storage[i]; - + if (!s) continue; - + array_free(s->auth_require); buffer_free(s->auth_plain_groupfile); buffer_free(s->auth_plain_userfile); buffer_free(s->auth_htdigest_userfile); buffer_free(s->auth_htpasswd_userfile); buffer_free(s->auth_backend_conf); - + buffer_free(s->auth_ldap_hostname); buffer_free(s->auth_ldap_basedn); buffer_free(s->auth_ldap_binddn); buffer_free(s->auth_ldap_bindpw); buffer_free(s->auth_ldap_filter); buffer_free(s->auth_ldap_cafile); - + #ifdef USE_LDAP buffer_free(s->ldap_filter_pre); buffer_free(s->ldap_filter_post); - + if (s->ldap) ldap_unbind_s(s->ldap); #endif - + free(s); } free(p->config_storage); } - + free(p); - + return HANDLER_GO_ON; } @@ -118,19 +118,19 @@ static int mod_auth_patch_connection(server *srv, connection *con, mod_auth_plug PATCH(ldap_filter_pre); PATCH(ldap_filter_post); #endif - + /* skip the first, the global context */ for (i = 1; i < srv->config_context->used; i++) { data_config *dc = (data_config *)srv->config_context->data[i]; s = p->config_storage[i]; - + /* condition didn't match */ if (!config_check_cond(srv, con, dc)) continue; - + /* merge config */ for (j = 0; j < dc->value->used; j++) { data_unset *du = dc->value->data[j]; - + if (buffer_is_equal_string(du->key, CONST_STR_LEN("auth.backend"))) { PATCH(auth_backend); } else if (buffer_is_equal_string(du->key, CONST_STR_LEN("auth.backend.plain.groupfile"))) { @@ -163,7 +163,7 @@ static int mod_auth_patch_connection(server *srv, connection *con, mod_auth_plug } } } - + return 0; } #undef PATCH @@ -175,22 +175,22 @@ static handler_t mod_auth_uri_handler(server *srv, connection *con, void *p_d) { data_string *ds; mod_auth_plugin_data *p = p_d; array *req; - + /* select the right config */ mod_auth_patch_connection(srv, con, p); - + if (p->conf.auth_require == NULL) return HANDLER_GO_ON; - + /* * AUTH - * + * */ - + /* do we have to ask for auth ? */ - + auth_required = 0; auth_satisfied = 0; - + /* search auth-directives for path */ for (k = 0; k < p->conf.auth_require->used; k++) { buffer *require = p->conf.auth_require->data[k]->key; @@ -212,31 +212,31 @@ static handler_t mod_auth_uri_handler(server *srv, connection *con, void *p_d) { } } } - + /* nothing to do for us */ if (auth_required == 0) return HANDLER_GO_ON; - + req = ((data_array *)(p->conf.auth_require->data[k]))->value; - + /* try to get Authorization-header */ - + if (NULL != (ds = (data_string *)array_get_element(con->request.headers, "Authorization"))) { http_authorization = ds->value->ptr; } - + if (ds && ds->value && ds->value->used) { char *auth_realm; data_string *method; - + method = (data_string *)array_get_element(req, "method"); - + /* parse auth-header */ if (NULL != (auth_realm = strchr(http_authorization, ' '))) { int auth_type_len = auth_realm - http_authorization; - + if ((auth_type_len == 5) && (0 == strncmp(http_authorization, "Basic", auth_type_len))) { - + if (0 == strcmp(method->value->ptr, "basic")) { auth_satisfied = http_auth_basic_check(srv, con, p, req, con->uri.path, auth_realm+1); } @@ -245,43 +245,43 @@ static handler_t mod_auth_uri_handler(server *srv, connection *con, void *p_d) { if (0 == strcmp(method->value->ptr, "digest")) { if (-1 == (auth_satisfied = http_auth_digest_check(srv, con, p, req, con->uri.path, auth_realm+1))) { con->http_status = 400; - + /* a field was missing */ - + return HANDLER_FINISHED; } } } else { - log_error_write(srv, __FILE__, __LINE__, "ss", + log_error_write(srv, __FILE__, __LINE__, "ss", "unknown authentification type:", http_authorization); } } } - + if (!auth_satisfied) { data_string *method, *realm; method = (data_string *)array_get_element(req, "method"); realm = (data_string *)array_get_element(req, "realm"); - + con->http_status = 401; - + if (0 == strcmp(method->value->ptr, "basic")) { buffer_copy_string(p->tmp_buf, "Basic realm=\""); buffer_append_string_buffer(p->tmp_buf, realm->value); buffer_append_string(p->tmp_buf, "\""); - + response_header_insert(srv, con, CONST_STR_LEN("WWW-Authenticate"), CONST_BUF_LEN(p->tmp_buf)); } else if (0 == strcmp(method->value->ptr, "digest")) { char hh[33]; http_auth_digest_generate_nonce(srv, p, srv->tmp_buf, hh); - + buffer_copy_string(p->tmp_buf, "Digest realm=\""); buffer_append_string_buffer(p->tmp_buf, realm->value); buffer_append_string(p->tmp_buf, "\", nonce=\""); buffer_append_string(p->tmp_buf, hh); buffer_append_string(p->tmp_buf, "\", qop=\"auth\""); - + response_header_insert(srv, con, CONST_STR_LEN("WWW-Authenticate"), CONST_BUF_LEN(p->tmp_buf)); } else { /* evil */ @@ -289,18 +289,18 @@ static handler_t mod_auth_uri_handler(server *srv, connection *con, void *p_d) { return HANDLER_FINISHED; } else { /* the REMOTE_USER header */ - + buffer_copy_string_buffer(con->authed_user, p->auth_user); } - + return HANDLER_GO_ON; } SETDEFAULTS_FUNC(mod_auth_set_defaults) { mod_auth_plugin_data *p = p_d; size_t i; - - config_values_t cv[] = { + + config_values_t cv[] = { { "auth.backend", NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION }, /* 0 */ { "auth.backend.plain.groupfile", NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION }, { "auth.backend.plain.userfile", NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION }, @@ -317,7 +317,7 @@ SETDEFAULTS_FUNC(mod_auth_set_defaults) { { "auth.debug", NULL, T_CONFIG_SHORT, T_CONFIG_SCOPE_CONNECTION }, /* 13 */ { NULL, NULL, T_CONFIG_UNSET, T_CONFIG_SCOPE_UNSET } }; - + p->config_storage = calloc(1, srv->config_context->used * sizeof(specific_config *)); for (i = 0; i < srv->config_context->used; i++) { @@ -325,14 +325,14 @@ SETDEFAULTS_FUNC(mod_auth_set_defaults) { size_t n; data_array *da; array *ca; - + s = calloc(1, sizeof(mod_auth_plugin_config)); s->auth_plain_groupfile = buffer_init(); s->auth_plain_userfile = buffer_init(); s->auth_htdigest_userfile = buffer_init(); s->auth_htpasswd_userfile = buffer_init(); s->auth_backend_conf = buffer_init(); - + s->auth_ldap_hostname = buffer_init(); s->auth_ldap_basedn = buffer_init(); s->auth_ldap_binddn = buffer_init(); @@ -341,15 +341,15 @@ SETDEFAULTS_FUNC(mod_auth_set_defaults) { s->auth_ldap_cafile = buffer_init(); s->auth_ldap_starttls = 0; s->auth_debug = 0; - + s->auth_require = array_init(); - + #ifdef USE_LDAP s->ldap_filter_pre = buffer_init(); s->ldap_filter_post = buffer_init(); s->ldap = NULL; #endif - + cv[0].destination = s->auth_backend_conf; cv[1].destination = s->auth_plain_groupfile; cv[2].destination = s->auth_plain_userfile; @@ -364,14 +364,14 @@ SETDEFAULTS_FUNC(mod_auth_set_defaults) { cv[11].destination = s->auth_htdigest_userfile; cv[12].destination = s->auth_htpasswd_userfile; cv[13].destination = &(s->auth_debug); - + p->config_storage[i] = s; ca = ((data_config *)srv->config_context->data[i])->value; - + if (0 != config_insert_values_global(srv, ca, cv)) { return HANDLER_ERROR; } - + if (s->auth_backend_conf->used) { if (0 == strcmp(s->auth_backend_conf->ptr, "htpasswd")) { s->auth_backend = AUTH_BACKEND_HTPASSWD; @@ -383,31 +383,31 @@ SETDEFAULTS_FUNC(mod_auth_set_defaults) { s->auth_backend = AUTH_BACKEND_LDAP; } else { log_error_write(srv, __FILE__, __LINE__, "sb", "auth.backend not supported:", s->auth_backend_conf); - + return HANDLER_ERROR; } } /* no auth.require for this section */ if (NULL == (da = (data_array *)array_get_element(ca, "auth.require"))) continue; - + if (da->type != TYPE_ARRAY) continue; - + for (n = 0; n < da->value->used; n++) { size_t m; data_array *da_file = (data_array *)da->value->data[n]; const char *method, *realm, *require; - + if (da->value->data[n]->type != TYPE_ARRAY) { - log_error_write(srv, __FILE__, __LINE__, "ss", - "auth.require should contain an array as in:", + log_error_write(srv, __FILE__, __LINE__, "ss", + "auth.require should contain an array as in:", "auth.require = ( \"...\" => ( ..., ...) )"); return HANDLER_ERROR; } - + method = realm = require = NULL; - + for (m = 0; m < da_file->value->used; m++) { if (da_file->value->data[m]->type == TYPE_STRING) { if (0 == strcmp(da_file->value->data[m]->key->ptr, "method")) { @@ -417,8 +417,8 @@ SETDEFAULTS_FUNC(mod_auth_set_defaults) { } else if (0 == strcmp(da_file->value->data[m]->key->ptr, "require")) { require = ((data_string *)(da_file->value->data[m]))->value->ptr; } else { - log_error_write(srv, __FILE__, __LINE__, "ssbs", - "the field is unknown in:", + log_error_write(srv, __FILE__, __LINE__, "ssbs", + "the field is unknown in:", "auth.require = ( \"...\" => ( ..., -> \"", da_file->value->data[m]->key, "\" <- => \"...\" ) )"); @@ -426,19 +426,19 @@ SETDEFAULTS_FUNC(mod_auth_set_defaults) { return HANDLER_ERROR; } } else { - log_error_write(srv, __FILE__, __LINE__, "ssbs", - "a string was expected for:", + log_error_write(srv, __FILE__, __LINE__, "ssbs", + "a string was expected for:", "auth.require = ( \"...\" => ( ..., -> \"", da_file->value->data[m]->key, "\" <- => \"...\" ) )"); - + return HANDLER_ERROR; } } - + if (method == NULL) { - log_error_write(srv, __FILE__, __LINE__, "ss", - "the require field is missing in:", + log_error_write(srv, __FILE__, __LINE__, "ss", + "the require field is missing in:", "auth.require = ( \"...\" => ( ..., \"method\" => \"...\" ) )"); return HANDLER_ERROR; } else { @@ -450,60 +450,60 @@ SETDEFAULTS_FUNC(mod_auth_set_defaults) { return HANDLER_ERROR; } } - + if (realm == NULL) { - log_error_write(srv, __FILE__, __LINE__, "ss", - "the require field is missing in:", + log_error_write(srv, __FILE__, __LINE__, "ss", + "the require field is missing in:", "auth.require = ( \"...\" => ( ..., \"realm\" => \"...\" ) )"); return HANDLER_ERROR; } - + if (require == NULL) { - log_error_write(srv, __FILE__, __LINE__, "ss", - "the require field is missing in:", + log_error_write(srv, __FILE__, __LINE__, "ss", + "the require field is missing in:", "auth.require = ( \"...\" => ( ..., \"require\" => \"...\" ) )"); return HANDLER_ERROR; } - + if (method && realm && require) { data_string *ds; data_array *a; - + a = data_array_init(); buffer_copy_string_buffer(a->key, da_file->key); - + ds = data_string_init(); - + buffer_copy_string(ds->key, "method"); buffer_copy_string(ds->value, method); - + array_insert_unique(a->value, (data_unset *)ds); - + ds = data_string_init(); - + buffer_copy_string(ds->key, "realm"); buffer_copy_string(ds->value, realm); - + array_insert_unique(a->value, (data_unset *)ds); - + ds = data_string_init(); - + buffer_copy_string(ds->key, "require"); buffer_copy_string(ds->value, require); - + array_insert_unique(a->value, (data_unset *)ds); - + array_insert_unique(s->auth_require, (data_unset *)a); } } - + switch(s->auth_backend) { case AUTH_BACKEND_PLAIN: if (s->auth_plain_userfile->used) { int fd; /* try to read */ if (-1 == (fd = open(s->auth_plain_userfile->ptr, O_RDONLY))) { - log_error_write(srv, __FILE__, __LINE__, "sbss", + log_error_write(srv, __FILE__, __LINE__, "sbss", "opening auth.backend.plain.userfile:", s->auth_plain_userfile, "failed:", strerror(errno)); return HANDLER_ERROR; @@ -516,7 +516,7 @@ SETDEFAULTS_FUNC(mod_auth_set_defaults) { int fd; /* try to read */ if (-1 == (fd = open(s->auth_htpasswd_userfile->ptr, O_RDONLY))) { - log_error_write(srv, __FILE__, __LINE__, "sbss", + log_error_write(srv, __FILE__, __LINE__, "sbss", "opening auth.backend.htpasswd.userfile:", s->auth_htpasswd_userfile, "failed:", strerror(errno)); return HANDLER_ERROR; @@ -529,7 +529,7 @@ SETDEFAULTS_FUNC(mod_auth_set_defaults) { int fd; /* try to read */ if (-1 == (fd = open(s->auth_htdigest_userfile->ptr, O_RDONLY))) { - log_error_write(srv, __FILE__, __LINE__, "sbss", + log_error_write(srv, __FILE__, __LINE__, "sbss", "opening auth.backend.htdigest.userfile:", s->auth_htdigest_userfile, "failed:", strerror(errno)); return HANDLER_ERROR; @@ -554,75 +554,75 @@ SETDEFAULTS_FUNC(mod_auth_set_defaults) { handler_t auth_ldap_init(server *srv, mod_auth_plugin_config *s) { #ifdef USE_LDAP int ret; -#if 0 +#if 0 if (s->auth_ldap_basedn->used == 0) { log_error_write(srv, __FILE__, __LINE__, "s", "ldap: auth.backend.ldap.base-dn has to be set"); - + return HANDLER_ERROR; } #endif - + if (s->auth_ldap_filter->used) { char *dollar; - + /* parse filter */ - + if (NULL == (dollar = strchr(s->auth_ldap_filter->ptr, '$'))) { log_error_write(srv, __FILE__, __LINE__, "s", "ldap: auth.backend.ldap.filter is missing a replace-operator '$'"); - + return HANDLER_ERROR; } - + buffer_copy_string_len(s->ldap_filter_pre, s->auth_ldap_filter->ptr, dollar - s->auth_ldap_filter->ptr); buffer_copy_string(s->ldap_filter_post, dollar+1); } - + if (s->auth_ldap_hostname->used) { if (NULL == (s->ldap = ldap_init(s->auth_ldap_hostname->ptr, LDAP_PORT))) { log_error_write(srv, __FILE__, __LINE__, "ss", "ldap ...", strerror(errno)); - + return HANDLER_ERROR; } - + ret = LDAP_VERSION3; if (LDAP_OPT_SUCCESS != (ret = ldap_set_option(s->ldap, LDAP_OPT_PROTOCOL_VERSION, &ret))) { log_error_write(srv, __FILE__, __LINE__, "ss", "ldap:", ldap_err2string(ret)); - + return HANDLER_ERROR; } if (s->auth_ldap_starttls) { - /* if no CA file is given, it is ok, as we will use encryption + /* if no CA file is given, it is ok, as we will use encryption * if the server requires a CAfile it will tell us */ if (!buffer_is_empty(s->auth_ldap_cafile)) { - if (LDAP_OPT_SUCCESS != (ret = ldap_set_option(NULL, LDAP_OPT_X_TLS_CACERTFILE, + if (LDAP_OPT_SUCCESS != (ret = ldap_set_option(NULL, LDAP_OPT_X_TLS_CACERTFILE, s->auth_ldap_cafile->ptr))) { - log_error_write(srv, __FILE__, __LINE__, "ss", + log_error_write(srv, __FILE__, __LINE__, "ss", "Loading CA certificate failed:", ldap_err2string(ret)); - + return HANDLER_ERROR; } } - + if (LDAP_OPT_SUCCESS != (ret = ldap_start_tls_s(s->ldap, NULL, NULL))) { log_error_write(srv, __FILE__, __LINE__, "ss", "ldap startTLS failed:", ldap_err2string(ret)); - + return HANDLER_ERROR; } } - - + + /* 1. */ if (s->auth_ldap_binddn->used) { if (LDAP_SUCCESS != (ret = ldap_simple_bind_s(s->ldap, s->auth_ldap_binddn->ptr, s->auth_ldap_bindpw->ptr))) { log_error_write(srv, __FILE__, __LINE__, "ss", "ldap:", ldap_err2string(ret)); - + return HANDLER_ERROR; } } else { if (LDAP_SUCCESS != (ret = ldap_simple_bind_s(s->ldap, NULL, NULL))) { log_error_write(srv, __FILE__, __LINE__, "ss", "ldap:", ldap_err2string(ret)); - + return HANDLER_ERROR; } } @@ -641,8 +641,8 @@ int mod_auth_plugin_init(plugin *p) { p->set_defaults = mod_auth_set_defaults; p->handle_uri_clean = mod_auth_uri_handler; p->cleanup = mod_auth_free; - + p->data = NULL; - + return 0; } |