Quelle util_cookies.h Sprache: C

/* 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 util_cookies.h
* @brief Apache cookie library
*/

#ifndef UTIL_COOKIES_H
#define UTIL_COOKIES_H

#ifdef __cplusplus
extern "C" {
#endif

/**
* @defgroup APACHE_CORE_COOKIE Cookies
* @ingroup  APACHE_CORE
*
* RFC2109 and RFC2965 compliant HTTP cookies can be read from and written
* to using this set of functions.
*
* @{
*
*/

#include "apr_errno.h"
#include "httpd.h"

#define SET_COOKIE "Set-Cookie"
#define SET_COOKIE2 "Set-Cookie2"
#define DEFAULT_ATTRS "HttpOnly;Secure;Version=1"
#define CLEAR_ATTRS "Version=1"

typedef struct {
    request_rec *r;
    const char *name;
    const char *encoded;
    apr_table_t *new_cookies;
    int duplicated;
} ap_cookie_do;

/**
* Write an RFC2109 compliant cookie.
*
* @param r The request
* @param name The name of the cookie.
* @param val The value to place in the cookie.
* @param attrs The string containing additional cookie attributes. If NULL, the
*              DEFAULT_ATTRS will be used.
* @param maxage If non zero, a Max-Age header will be added to the cookie.
* @param ... A varargs array of zero or more (apr_table_t *) tables followed by NULL
*            to which the cookies should be added.
*/
AP_DECLARE(apr_status_t) ap_cookie_write(request_rec * r, const char *name,
                                         const char *val, const char *attrs,
                                         long maxage, ...)
                         AP_FN_ATTR_SENTINEL;

/**
* Write an RFC2965 compliant cookie.
*
* @param r The request
* @param name2 The name of the cookie.
* @param val The value to place in the cookie.
* @param attrs2 The string containing additional cookie attributes. If NULL, the
*               DEFAULT_ATTRS will be used.
* @param maxage If non zero, a Max-Age header will be added to the cookie.
* @param ... A varargs array of zero or more (apr_table_t *) tables followed by NULL
*            to which the cookies should be added.
*/
AP_DECLARE(apr_status_t) ap_cookie_write2(request_rec * r, const char *name2,
                                          const char *val, const char *attrs2,
                                          long maxage, ...)
                         AP_FN_ATTR_SENTINEL;

/**
* Remove an RFC2109 compliant cookie.
*
* @param r The request
* @param name The name of the cookie.
* @param attrs The string containing additional cookie attributes. If NULL, the
*              CLEAR_ATTRS will be used.
* @param ... A varargs array of zero or more (apr_table_t *) tables followed by NULL
*            to which the cookies should be added.
*/
AP_DECLARE(apr_status_t) ap_cookie_remove(request_rec * r, const char *name,
                                          const char *attrs, ...)
                         AP_FN_ATTR_SENTINEL;

/**
* Remove an RFC2965 compliant cookie.
*
* @param r The request
* @param name2 The name of the cookie.
* @param attrs2 The string containing additional cookie attributes. If NULL, the
*               CLEAR_ATTRS will be used.
* @param ... A varargs array of zero or more (apr_table_t *) tables followed by NULL
*            to which the cookies should be added.
*/
AP_DECLARE(apr_status_t) ap_cookie_remove2(request_rec * r, const char *name2,
                                           const char *attrs2, ...)
                         AP_FN_ATTR_SENTINEL;

/**
* Read a cookie called name, placing its value in val.
*
* Both the Cookie and Cookie2 headers are scanned for the cookie.
*
* If the cookie is duplicated, this function returns APR_EGENERAL. If found,
* and if remove is non zero, the cookie will be removed from the headers, and
* thus kept private from the backend.
*/
AP_DECLARE(apr_status_t) ap_cookie_read(request_rec * r, const char *name, const char **val,
                                        int remove);

/**
* Sanity check a given string that it exists, is not empty,
* and does not contain the special characters '=', ';' and '&'.
*
* It is used to sanity check the cookie names.
*/
AP_DECLARE(apr_status_t) ap_cookie_check_string(const char *string);

/**
* @}
*/

#ifdef __cplusplus
}
#endif

#endif /* !UTIL_COOKIES_H */

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