Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tree: fd9aa81984
Fetching contributors…

Cannot retrieve contributors at this time

file 141 lines (121 sloc) 4.524 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141
/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

/**
* @file mod_auth.h
* @brief Authentication and Authorization Extension for Apache
*
* @defgroup MOD_AUTH mod_auth
* @ingroup APACHE_MODS
*/

#ifndef APACHE_MOD_AUTH_H
#define APACHE_MOD_AUTH_H

#include "apr_pools.h"
#include "apr_hash.h"
#include "apr_optional.h"

#include "httpd.h"
#include "http_config.h"

#ifdef __cplusplus
extern "C" {
#endif

#define AUTHN_PROVIDER_GROUP "authn"
#define AUTHZ_PROVIDER_GROUP "authz"
#define AUTHN_PROVIDER_VERSION "0"
#define AUTHZ_PROVIDER_VERSION "0"
#define AUTHN_DEFAULT_PROVIDER "file"

#define AUTHN_PROVIDER_NAME_NOTE "authn_provider_name"
#define AUTHZ_PROVIDER_NAME_NOTE "authz_provider_name"

#define AUTHN_PREFIX "AUTHENTICATE_"
#define AUTHZ_PREFIX "AUTHORIZE_"

/** all of the requirements must be met */
#ifndef SATISFY_ALL
#define SATISFY_ALL 0
#endif
/** any of the requirements must be met */
#ifndef SATISFY_ANY
#define SATISFY_ANY 1
#endif
/** There are no applicable satisfy lines */
#ifndef SATISFY_NOSPEC
#define SATISFY_NOSPEC 2
#endif

typedef enum {
    AUTH_DENIED,
    AUTH_GRANTED,
    AUTH_USER_FOUND,
    AUTH_USER_NOT_FOUND,
    AUTH_GENERAL_ERROR
} authn_status;

typedef enum {
    AUTHZ_DENIED,
    AUTHZ_GRANTED,
    AUTHZ_NEUTRAL,
    AUTHZ_GENERAL_ERROR,
    AUTHZ_DENIED_NO_USER /* denied because r->user == NULL */
} authz_status;

typedef struct {
    /* Given a username and password, expected to return AUTH_GRANTED
* if we can validate this user/password combination.
*/
    authn_status (*check_password)(request_rec *r, const char *user,
                                   const char *password);

    /* Given a user and realm, expected to return AUTH_USER_FOUND if we
* can find a md5 hash of 'user:realm:password'
*/
    authn_status (*get_realm_hash)(request_rec *r, const char *user,
                                   const char *realm, char **rethash);
} authn_provider;

/* A linked-list of authn providers. */
typedef struct authn_provider_list authn_provider_list;

struct authn_provider_list {
    const char *provider_name;
    const authn_provider *provider;
    authn_provider_list *next;
};

typedef struct {
    /* Given a request_rec, expected to return AUTHZ_GRANTED
* if we can authorize user access.
* @param r the request record
* @param require_line the argument to the authz provider
* @param parsed_require_line the value set by parse_require_line(), if any
*/
    authz_status (*check_authorization)(request_rec *r,
                                        const char *require_line,
                                        const void *parsed_require_line);

    /** Check the syntax of a require line and optionally cache the parsed
* line. This function may be NULL.
* @param cmd the config directive
* @param require_line the argument to the authz provider
* @param parsed_require_line place to store parsed require_line for use by provider
* @return Error message or NULL on success
*/
    const char *(*parse_require_line)(cmd_parms *cmd, const char *require_line,
                                      const void **parsed_require_line);
} authz_provider;

/* ap_authn_cache_store: Optional function for authn providers
* to enable cacheing their lookups with mod_authn_cache
* @param r The request rec
* @param module Module identifier
* @param user User name to authenticate
* @param realm Digest authn realm (NULL for basic authn)
* @param data The value looked up by the authn provider, to cache
*/
APR_DECLARE_OPTIONAL_FN(void, ap_authn_cache_store,
                        (request_rec*, const char*, const char*,
                         const char*, const char*));

#ifdef __cplusplus
}
#endif

#endif
Something went wrong with that request. Please try again.