#define MIN_UID 100
#define MIN_GID 100
+#define MAX_FAILURES 5
+
module AP_MODULE_DECLARE_DATA vhost_ldap_module;
typedef enum {
char *cgiroot; /* ScriptAlias */
char *uid; /* Suexec Uid */
char *gid; /* Suexec Gid */
- char *saved_docroot; /* Saved DocumentRoot */
} mod_vhost_ldap_request_t;
char *attributes[] =
}
#endif
+/* Taken from server/core.c */
+static int set_document_root(request_rec *r, const char *arg)
+{
+ void *sconf = r->server->module_config;
+ core_server_config *conf = ap_get_module_config(sconf, &core_module);
+
+ /* Make it absolute, relative to ServerRoot */
+ arg = ap_server_root_relative(r->pool, arg);
+
+ if (arg == NULL) {
+ ap_log_rerror(APLOG_MARK, APLOG_WARNING, 0, r,
+ "[mod_vhost_ldap.c] set_document_root: DocumentRoot [%s] must be a directory",
+ arg);
+
+ return HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ /* TODO: ap_configtestonly && ap_docrootcheck && */
+ if (apr_filepath_merge((char**)&conf->ap_document_root, NULL, arg,
+ APR_FILEPATH_TRUENAME, r->pool) != APR_SUCCESS
+ || !ap_is_directory(r->pool, arg)) {
+
+ ap_log_rerror(APLOG_MARK, APLOG_WARNING, 0,
+ r,
+ "[mod_vhost_ldap.c] set_document_root: Warning: DocumentRoot [%s] does not exist",
+ arg);
+ conf->ap_document_root = arg;
+ }
+ return OK;
+}
+
+
static int mod_vhost_ldap_post_config(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)
{
/* make sure that mod_ldap (util_ldap) is loaded */
char *cgi;
const char *hostname = NULL;
int is_fallback = 0;
+ int sleep0 = 0;
+ int sleep1 = 1;
+ int sleep;
+ struct berval hostnamebv, shostnamebv;
reqc =
(mod_vhost_ldap_request_t *)apr_pcalloc(r->pool, sizeof(mod_vhost_ldap_request_t));
}
hostname = r->hostname;
+ if (hostname == NULL || hostname[0] == '\0')
+ goto null;
fallback:
ap_log_rerror(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, r,
- "[mod_vhost_ldap.c]: translating %s", r->uri);
+ "[mod_vhost_ldap.c]: translating hostname [%s], uri [%s]", hostname, r->uri);
- apr_snprintf(filtbuf, FILTER_LENGTH, "(&(%s)(|(apacheServerName=%s)(apacheServerAlias=%s)))", conf->filter, hostname, hostname);
+ ber_str2bv(hostname, 0, 0, &hostnamebv);
+ if (ldap_bv2escaped_filter_value(&hostnamebv, &shostnamebv) != 0)
+ goto null;
+ apr_snprintf(filtbuf, FILTER_LENGTH, "(&(%s)(|(apacheServerName=%s)(apacheServerAlias=%s)))", conf->filter, shostnamebv.bv_val, shostnamebv.bv_val);
+ ber_memfree(shostnamebv.bv_val);
result = util_ldap_cache_getuserdn(r, ldc, conf->url, conf->basedn, conf->scope,
attributes, filtbuf, &dn, &vals);
util_ldap_connection_close(ldc);
/* sanity check - if server is down, retry it up to 5 times */
- if (result == LDAP_SERVER_DOWN) {
- if (failures++ <= 5) {
+ if (AP_LDAP_IS_SERVER_DOWN(result) ||
+ (result == LDAP_TIMEOUT) ||
+ (result == LDAP_CONNECT_ERROR)) {
+ sleep = sleep0 + sleep1;
+ ap_log_rerror(APLOG_MARK, APLOG_WARNING|APLOG_NOERRNO, 0, r,
+ "[mod_vhost_ldap.c]: lookup failure, retry number #[%d], sleeping for [%d] seconds", failures, sleep);
+ if (failures++ < MAX_FAILURES) {
+ /* Back-off exponentially */
+ apr_sleep(apr_time_from_sec(sleep));
+ sleep0 = sleep1;
+ sleep1 = sleep;
goto start_over;
} else {
return HTTP_GATEWAY_TIME_OUT;
}
if (result == LDAP_NO_SUCH_OBJECT) {
+null:
if (conf->fallback && (is_fallback++ <= 0)) {
ap_log_rerror(APLOG_MARK, APLOG_NOTICE|APLOG_NOERRNO, 0, r,
"[mod_vhost_ldap.c] translate: "
}
}
if (cgi) {
- r->filename = apr_pstrcat (r->pool, reqc->cgiroot, cgi + strlen("cgi-bin"), NULL);
- r->handler = "cgi-script";
- apr_table_setn(r->notes, "alias-forced-type", r->handler);
+ /* Set exact filename for CGI script */
+ cgi = apr_pstrcat(r->pool, reqc->cgiroot, cgi + strlen("cgi-bin"), NULL);
+ if ((cgi = ap_server_root_relative(r->pool, cgi))) {
+ ap_log_rerror(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, r,
+ "[mod_vhost_ldap.c]: ap_document_root is: %s", ap_document_root(r));
+ r->filename = cgi;
+ r->handler = "cgi-script";
+ apr_table_setn(r->notes, "alias-forced-type", r->handler);
+ }
} else if (r->uri[0] == '/') {
- /* r->filename = apr_pstrdup(r->pool, r->uri); */
- /* r->filename = apr_pstrcat (r->pool, reqc->docroot, r->uri, NULL); */
+ /* we don't set r->filename here, and let other modules do it
+ * this allows other modules (mod_rewrite.c) to work as usual
+ */
+ /* r->filename = apr_pstrcat (r->pool, reqc->docroot, r->uri, NULL); */
} else {
+ /* We don't handle non-file requests here */
return DECLINED;
}
top->server->server_admin = apr_pstrdup (top->pool, reqc->admin);
}
- ap_log_rerror(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, r,
- "[mod_vhost_ldap.c]: ap_document_root is: %s", ap_document_root(r));
-
- reqc->saved_docroot = apr_pstrdup(top->pool, ap_document_root(r));
-
- set_document_root(r, NULL, reqc->docroot);
-
- ap_log_rerror(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, r,
- "[mod_vhost_ldap.c]: ap_document_root set to: %s", ap_document_root(r));
+ result = set_document_root(r, reqc->docroot);
+ if (result != OK) {
+ return HTTP_INTERNAL_SERVER_ERROR;
+ }
// set environment variables
e = top->subprocess_env;
- apr_table_addn (e, "SERVER_ROOT", reqc->docroot);
- apr_table_addn (e, "DOCUMENT_ROOT", reqc->docroot);
+ apr_table_addn(e, "DOCUMENT_ROOT", reqc->docroot);
/* Hack to allow post-processing by other modules (mod_rewrite, mod_alias) */
return DECLINED;
}
-static int mod_vhost_ldap_cleanup(request_rec * r)
-{
- mod_vhost_ldap_request_t *reqc =
- (mod_vhost_ldap_request_t *)ap_get_module_config(r->request_config,
- &vhost_ldap_module);
-
- set_document_root(r, NULL, reqc->saved_docroot);
-
- ap_log_rerror(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, r,
- "[mod_vhost_ldap.c]: ap_document_root restored to: %s", ap_document_root(r));
-
- return OK;
-}
-
#ifdef HAVE_UNIX_SUEXEC
static ap_unix_identity_t *mod_vhost_ldap_get_suexec_id_doer(const request_rec * r)
{
ap_hook_post_config(mod_vhost_ldap_post_config, NULL, NULL, APR_HOOK_MIDDLE);
ap_hook_translate_name(mod_vhost_ldap_translate_name, NULL, aszRewrite, APR_HOOK_FIRST);
- ap_hook_fixups(mod_vhost_ldap_cleanup, aszRewrite, NULL, APR_HOOK_MIDDLE);
#ifdef HAVE_UNIX_SUEXEC
ap_hook_get_suexec_identity(mod_vhost_ldap_get_suexec_id_doer, NULL, NULL, APR_HOOK_MIDDLE);
#endif