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authorArno Töll <arno@debian.org>2012-11-21 23:03:44 +0100
committerArno Töll <arno@debian.org>2012-11-21 23:03:44 +0100
commitc99b717062c6228c4ac6df3831702f81c9806df4 (patch)
tree8cc83ebb36aa5b7f8691152db83071784fbfc1c7 /src/mod_auth.c
parent1b24d86e6b2179692e60091dec59f797cd308b9e (diff)
downloadlighttpd-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.c248
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;
}