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/* 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_script.h
* @brief Apache script tools
*
* @defgroup APACHE_CORE_SCRIPT Script Tools
* @ingroup APACHE_CORE
* @{
*/
#ifndef APACHE_UTIL_SCRIPT_H
#define APACHE_UTIL_SCRIPT_H
#include "apr_buckets.h"
#include "ap_config.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifndef APACHE_ARG_MAX
#ifdef _POSIX_ARG_MAX
#define APACHE_ARG_MAX _POSIX_ARG_MAX
#else
#define APACHE_ARG_MAX 512
#endif
#endif
/**
* Create an environment variable out of an Apache table of key-value pairs
* @param p pool to allocate out of
* @param t Apache table of key-value pairs
* @return An array containing the same key-value pairs suitable for
* use with an exec call.
* @fn char **ap_create_environment(apr_pool_t *p, apr_table_t *t)
*/
AP_DECLARE(char **) ap_create_environment(apr_pool_t *p, apr_table_t *t);
/**
* This "cute" little function comes about because the path info on
* filenames and URLs aren't always the same. So we take the two,
* and find as much of the two that match as possible.
* @param uri The uri we are currently parsing
* @param path_info The current path info
* @return The length of the path info
* @fn int ap_find_path_info(const char *uri, const char *path_info)
*/
AP_DECLARE(int) ap_find_path_info(const char *uri, const char *path_info);
/**
* Add CGI environment variables required by HTTP/1.1 to the request's
* environment table
* @param r the current request
* @fn void ap_add_cgi_vars(request_rec *r)
*/
AP_DECLARE(void) ap_add_cgi_vars(request_rec *r);
/**
* Add common CGI environment variables to the requests environment table
* @param r The current request
* @fn void ap_add_common_vars(request_rec *r)
*/
AP_DECLARE(void) ap_add_common_vars(request_rec *r);
/**
* Read headers output from a script, ensuring that the output is valid. If
* the output is valid, then the headers are added to the headers out of the
* current request
* @param r The current request
* @param f The file to read from
* @param buffer Empty when calling the function. On output, if there was an
* error, the string that cause the error is stored here.
* @return HTTP_OK on success, HTTP_INTERNAL_SERVER_ERROR otherwise
* @fn int ap_scan_script_header_err(request_rec *r, apr_file_t *f, char *buffer)
*/
AP_DECLARE(int) ap_scan_script_header_err(request_rec *r, apr_file_t *f, char *buffer);
/**
* Read headers output from a script, ensuring that the output is valid. If
* the output is valid, then the headers are added to the headers out of the
* current request
* @param r The current request
* @param f The file to read from
* @param buffer Empty when calling the function. On output, if there was an
* error, the string that cause the error is stored here.
* @param module_index The module index to be used for logging
* @return HTTP_OK on success, HTTP_INTERNAL_SERVER_ERROR otherwise
*/
AP_DECLARE(int) ap_scan_script_header_err_ex(request_rec *r, apr_file_t *f,
char *buffer, int module_index);
/**
* Read headers output from a script, ensuring that the output is valid. If
* the output is valid, then the headers are added to the headers out of the
* current request
* @param r The current request
* @param bb The brigade from which to read
* @param buffer Empty when calling the function. On output, if there was an
* error, the string that cause the error is stored here.
* @return HTTP_OK on success, HTTP_INTERNAL_SERVER_ERROR otherwise
* @fn int ap_scan_script_header_err_brigade(request_rec *r, apr_bucket_brigade *bb, char *buffer)
*/
AP_DECLARE(int) ap_scan_script_header_err_brigade(request_rec *r,
apr_bucket_brigade *bb,
char *buffer);
/**
* Read headers output from a script, ensuring that the output is valid. If
* the output is valid, then the headers are added to the headers out of the
* current request
* @param r The current request
* @param bb The brigade from which to read
* @param buffer Empty when calling the function. On output, if there was an
* error, the string that cause the error is stored here.
* @param module_index The module index to be used for logging
* @return HTTP_OK on success, HTTP_INTERNAL_SERVER_ERROR otherwise
*/
AP_DECLARE(int) ap_scan_script_header_err_brigade_ex(request_rec *r,
apr_bucket_brigade *bb,
char *buffer,
int module_index);
/**
* Read headers strings from a script, ensuring that the output is valid. If
* the output is valid, then the headers are added to the headers out of the
* current request
* @param r The current request
* @param buffer Empty when calling the function. On output, if there was an
* error, the string that cause the error is stored here.
* @param termch Pointer to the last character parsed.
* @param termarg Pointer to an int to capture the last argument parsed.
*
* The varargs are string arguments to parse consecutively for headers,
* with a NULL argument to terminate the list.
*
* @return HTTP_OK on success, HTTP_INTERNAL_SERVER_ERROR otherwise
*/
AP_DECLARE_NONSTD(int) ap_scan_script_header_err_strs(request_rec *r,
char *buffer,
const char **termch,
int *termarg, ...)
AP_FN_ATTR_SENTINEL;
/**
* Read headers strings from a script, ensuring that the output is valid. If
* the output is valid, then the headers are added to the headers out of the
* current request
* @param r The current request
* @param buffer Empty when calling the function. On output, if there was an
* error, the string that cause the error is stored here.
* @param module_index The module index to be used for logging
* @param termch Pointer to the last character parsed.
* @param termarg Pointer to an int to capture the last argument parsed.
*
* The varargs are string arguments to parse consecutively for headers,
* with a NULL argument to terminate the list.
*
* @return HTTP_OK on success, HTTP_INTERNAL_SERVER_ERROR otherwise
*/
AP_DECLARE_NONSTD(int) ap_scan_script_header_err_strs_ex(request_rec *r,
char *buffer,
int module_index,
const char **termch,
int *termarg, ...)
AP_FN_ATTR_SENTINEL;
/**
* Read headers output from a script, ensuring that the output is valid. If
* the output is valid, then the headers are added to the headers out of the
* current request
* @param r The current request
* @param buffer Empty when calling the function. On output, if there was an
* error, the string that cause the error is stored here.
* @param getsfunc Function to read the headers from. This function should
act like gets()
* @param getsfunc_data The place to read from
* @return HTTP_OK on success, HTTP_INTERNAL_SERVER_ERROR otherwise
*/
AP_DECLARE(int) ap_scan_script_header_err_core(request_rec *r, char *buffer,
int (*getsfunc) (char *, int, void *),
void *getsfunc_data);
/**
* Read headers output from a script, ensuring that the output is valid. If
* the output is valid, then the headers are added to the headers out of the
* current request
* @param r The current request
* @param buffer Empty when calling the function. On output, if there was an
* error, the string that cause the error is stored here.
* @param getsfunc Function to read the headers from. This function should
act like gets()
* @param getsfunc_data The place to read from
* @param module_index The module index to be used for logging
* @return HTTP_OK on success, HTTP_INTERNAL_SERVER_ERROR otherwise
*/
AP_DECLARE(int) ap_scan_script_header_err_core_ex(request_rec *r, char *buffer,
int (*getsfunc) (char *, int, void *),
void *getsfunc_data, int module_index);
/**
* Parse query args for the request and store in a new table allocated
* from the request pool.
* For args with no value, "1" will be used instead.
* If no query args were specified, the table will be empty.
* @param r The current request
* @param table A new table on output.
*/
AP_DECLARE(void) ap_args_to_table(request_rec *r, apr_table_t **table);
#define AP_TRUST_CGILIKE_CL_ENVVAR "ap_trust_cgilike_cl"
#ifdef __cplusplus
}
#endif
#endif /* !APACHE_UTIL_SCRIPT_H */
/** @} */