CAMLprim value
netcgi2_apache_request_note_auth_failure (value rv)
{
CAMLparam1 (rv);
request_rec *r = Request_rec_val (rv);
ap_note_auth_failure (r);
CAMLreturn (Val_unit);
}
static int mod_authopenid_check_user_access(request_rec *r) {
modauthopenid_config *s_cfg;
s_cfg = (modauthopenid_config *) ap_get_module_config(r->per_dir_config, &authopenid_module);
char *user = r->user;
int m = r->method_number;
int required_user = 0;
register int x;
const char *t, *w;
const apr_array_header_t *reqs_arr = ap_requires(r);
require_line *reqs;
if (!reqs_arr)
return DECLINED;
reqs = (require_line *)reqs_arr->elts;
for (x = 0; x < reqs_arr->nelts; x++) {
if (!(reqs[x].method_mask & (AP_METHOD_BIT << m)))
continue;
t = reqs[x].requirement;
w = ap_getword_white(r->pool, &t);
if (!strcasecmp(w, "valid-user"))
return OK;
if (!strcasecmp(w, "user")) {
required_user = 1;
while (t[0]) {
w = ap_getword_conf(r->pool, &t);
if (!strcmp(user, w))
return OK;
}
}
}
if (!required_user)
return DECLINED;
APERR(r, "Access to %s failed: user '%s' invalid", r->uri, user);
ap_note_auth_failure(r);
return HTTP_UNAUTHORIZED;
}
/*
* Apache <2.4 authorization routine: match the claims from the authenticated user against the Require primitive
*/
int oidc_authz_worker(request_rec *r, const json_t * const claims,
const require_line * const reqs, int nelts) {
const int m = r->method_number;
const char *token;
const char *requirement;
int i;
int have_oauthattr = 0;
int count_oauth_claims = 0;
/* go through applicable Require directives */
for (i = 0; i < nelts; ++i) {
/* ignore this Require if it's in a <Limit> section that exclude this method */
if (!(reqs[i].method_mask & (AP_METHOD_BIT << m))) {
continue;
}
/* ignore if it's not a "Require claim ..." */
requirement = reqs[i].requirement;
token = ap_getword_white(r->pool, &requirement);
if (apr_strnatcasecmp(token, OIDC_REQUIRE_NAME) != 0) {
continue;
}
/* ok, we have a "Require claim" to satisfy */
have_oauthattr = 1;
/*
* If we have an applicable claim, but no claims were sent in the request, then we can
* just stop looking here, because it's not satisfiable. The code after this loop will
* give the appropriate response.
*/
if (!claims) {
break;
}
/*
* iterate over the claim specification strings in this require directive searching
* for a specification that matches one of the claims.
*/
while (*requirement) {
token = ap_getword_conf(r->pool, &requirement);
count_oauth_claims++;
oidc_debug(r, "evaluating claim specification: %s", token);
if (oidc_authz_match_claim(r, token, claims) == TRUE) {
/* if *any* claim matches, then authorization has succeeded and all of the others are ignored */
oidc_debug(r, "require claim '%s' matched", token);
return OK;
}
}
}
/* if there weren't any "Require claim" directives, we're irrelevant */
if (!have_oauthattr) {
oidc_debug(r, "no claim statements found, not performing authz");
return DECLINED;
}
/* if there was a "Require claim", but no actual claims, that's cause to warn the admin of an iffy configuration */
if (count_oauth_claims == 0) {
oidc_warn(r,
"'require claim' missing specification(s) in configuration, declining");
return DECLINED;
}
/* log the event, also in Apache speak */
oidc_debug(r, "authorization denied for client session");
ap_note_auth_failure(r);
return HTTP_UNAUTHORIZED;
}
static int check_file_owner(request_rec *r)
{
authz_owner_config_rec *conf = ap_get_module_config(r->per_dir_config,
&authz_owner_module);
int m = r->method_number;
register int x;
const char *t, *w;
const apr_array_header_t *reqs_arr = ap_requires(r);
require_line *reqs;
int required_owner = 0;
apr_status_t status = 0;
char *reason = NULL;
if (!reqs_arr) {
return DECLINED;
}
reqs = (require_line *)reqs_arr->elts;
for (x = 0; x < reqs_arr->nelts; x++) {
/* if authoritative = On then break if a require already failed. */
if (reason && conf->authoritative) {
break;
}
if (!(reqs[x].method_mask & (AP_METHOD_BIT << m))) {
continue;
}
t = reqs[x].requirement;
w = ap_getword_white(r->pool, &t);
if (!strcmp(w, "file-owner")) {
#if !APR_HAS_USER
if ((required_owner & ~1) && conf->authoritative) {
break;
}
required_owner |= 1; /* remember the requirement */
reason = "'Require file-owner' is not supported on this platform.";
continue;
#else /* APR_HAS_USER */
char *owner = NULL;
apr_finfo_t finfo;
if ((required_owner & ~1) && conf->authoritative) {
break;
}
required_owner |= 1; /* remember the requirement */
if (!r->filename) {
reason = "no filename available";
continue;
}
status = apr_stat(&finfo, r->filename, APR_FINFO_USER, r->pool);
if (status != APR_SUCCESS) {
reason = apr_pstrcat(r->pool, "could not stat file ",
r->filename, NULL);
continue;
}
if (!(finfo.valid & APR_FINFO_USER)) {
reason = "no file owner information available";
continue;
}
status = apr_uid_name_get(&owner, finfo.user, r->pool);
if (status != APR_SUCCESS || !owner) {
reason = "could not get name of file owner";
continue;
}
if (strcmp(owner, r->user)) {
reason = apr_psprintf(r->pool, "file owner %s does not match.",
owner);
continue;
}
/* this user is authorized */
return OK;
#endif /* APR_HAS_USER */
}
/* file-group only figures out the file's group and lets
* other modules do the actual authorization (against a group file/db).
* Thus, these modules have to hook themselves after
* mod_authz_owner and of course recognize 'file-group', too.
*/
if (!strcmp(w, "file-group")) {
#if !APR_HAS_USER
if ((required_owner & ~6) && conf->authoritative) {
break;
}
required_owner |= 2; /* remember the requirement */
reason = "'Require file-group' is not supported on this platform.";
continue;
#else /* APR_HAS_USER */
char *group = NULL;
apr_finfo_t finfo;
if ((required_owner & ~6) && conf->authoritative) {
break;
}
required_owner |= 2; /* remember the requirement */
if (!r->filename) {
reason = "no filename available";
continue;
}
status = apr_stat(&finfo, r->filename, APR_FINFO_GROUP, r->pool);
if (status != APR_SUCCESS) {
reason = apr_pstrcat(r->pool, "could not stat file ",
r->filename, NULL);
continue;
}
if (!(finfo.valid & APR_FINFO_GROUP)) {
reason = "no file group information available";
continue;
}
status = apr_gid_name_get(&group, finfo.group, r->pool);
if (status != APR_SUCCESS || !group) {
reason = "could not get name of file group";
continue;
}
/* store group name in a note and let others decide... */
apr_table_setn(r->notes, AUTHZ_GROUP_NOTE, group);
required_owner |= 4;
continue;
#endif /* APR_HAS_USER */
}
}
if (!required_owner || !conf->authoritative) {
return DECLINED;
}
/* allow file-group passed to group db modules either if this is the
* only applicable requirement here or if a file-owner failed but we're
* not authoritative.
* This allows configurations like:
*
* AuthzOwnerAuthoritative Off
* require file-owner
* require file-group
*
* with the semantical meaning of "either owner or group must match"
* (inclusive or)
*
* [ 6 == 2 | 4; 7 == 1 | 2 | 4 ] should I use #defines instead?
*/
if (required_owner == 6 || (required_owner == 7 && !conf->authoritative)) {
return DECLINED;
}
ap_log_rerror(APLOG_MARK, APLOG_ERR, status, r,
"Authorization of user %s to access %s failed, reason: %s",
r->user, r->uri, reason ? reason : "unknown");
ap_note_auth_failure(r);
return HTTP_UNAUTHORIZED;
}