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author | 2015-11-30 01:45:08 -0500 | |
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committer | 2015-11-30 01:45:08 -0500 | |
commit | e8ec7aa8e38a93f5b034ac74cebce5de23710317 (patch) | |
tree | aa031937bf856c1f8d6ad7877b8d2cb0224da5ef /rubbos/app/httpd-2.0.64/include/http_protocol.h | |
parent | cc40af334e619bb549038238507407866f774f8f (diff) |
upload http
JIRA: BOTTLENECK-10
Change-Id: I7598427ff904df438ce77c2819ee48ac75ffa8da
Signed-off-by: hongbotian <hongbo.tianhongbo@huawei.com>
Diffstat (limited to 'rubbos/app/httpd-2.0.64/include/http_protocol.h')
-rw-r--r-- | rubbos/app/httpd-2.0.64/include/http_protocol.h | 697 |
1 files changed, 697 insertions, 0 deletions
diff --git a/rubbos/app/httpd-2.0.64/include/http_protocol.h b/rubbos/app/httpd-2.0.64/include/http_protocol.h new file mode 100644 index 00000000..6287589f --- /dev/null +++ b/rubbos/app/httpd-2.0.64/include/http_protocol.h @@ -0,0 +1,697 @@ +/* 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. + */ + +#ifndef APACHE_HTTP_PROTOCOL_H +#define APACHE_HTTP_PROTOCOL_H + +#include "httpd.h" +#include "apr_hooks.h" +#include "apr_portable.h" +#include "apr_mmap.h" +#include "apr_buckets.h" +#include "util_filter.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @package HTTP protocol handling + */ + +/** + * This hook allows modules to insert filters for the current error response + * @param r the current request + * @ingroup hooks + */ +AP_DECLARE_HOOK(void,insert_error_filter,(request_rec *r)) + +/* This is an optimization. We keep a record of the filter_rec that + * stores the old_write filter, so that we can avoid strcmp's later. + */ +AP_DECLARE_DATA extern ap_filter_rec_t *ap_old_write_func; + +/* + * Prototypes for routines which either talk directly back to the user, + * or control the ones that eventually do. + */ + +/** + * Read a request and fill in the fields. + * @param c The current connection + * @return The new request_rec + */ +request_rec *ap_read_request(conn_rec *c); + +/** + * Read the mime-encoded headers. + * @param r The current request + */ +AP_DECLARE(void) ap_get_mime_headers(request_rec *r); + +/** + * Optimized version of ap_get_mime_headers() that requires a + * temporary brigade to work with + * @param r The current request + * @param bb temp brigade + */ +AP_DECLARE(void) ap_get_mime_headers_core(request_rec *r, + apr_bucket_brigade *bb); + +/* Finish up stuff after a request */ + +/** + * Called at completion of sending the response. It sends the terminating + * protocol information. + * @param r The current request + * @deffunc void ap_finalize_request_protocol(request_rec *r) + */ +AP_DECLARE(void) ap_finalize_request_protocol(request_rec *r); + +/** + * Send error back to client. + * @param r The current request + * @param recursive_error last arg indicates error status in case we get + * an error in the process of trying to deal with an ErrorDocument + * to handle some other error. In that case, we print the default + * report for the first thing that went wrong, and more briefly report + * on the problem with the ErrorDocument. + * @deffunc void ap_send_error_response(request_rec *r, int recursive_error) + */ +AP_DECLARE(void) ap_send_error_response(request_rec *r, int recursive_error); + +/* Set last modified header line from the lastmod date of the associated file. + * Also, set content length. + * + * May return an error status, typically HTTP_NOT_MODIFIED (that when the + * permit_cache argument is set to one). + */ + +/** + * Set the content length for this request + * @param r The current request + * @param length The new content length + * @deffunc void ap_set_content_length(request_rec *r, apr_off_t length) + */ +AP_DECLARE(void) ap_set_content_length(request_rec *r, apr_off_t length); + +/** + * Set the keepalive status for this request + * @param r The current request + * @return 1 if keepalive can be set, 0 otherwise + * @deffunc int ap_set_keepalive(request_rec *r) + */ +AP_DECLARE(int) ap_set_keepalive(request_rec *r); + +/** + * Return the latest rational time from a request/mtime pair. Mtime is + * returned unless it's in the future, in which case we return the current time. + * @param r The current request + * @param mtime The last modified time + * @return the latest rational time. + * @deffunc apr_time_t ap_rationalize_mtime(request_rec *r, apr_time_t mtime) + */ +AP_DECLARE(apr_time_t) ap_rationalize_mtime(request_rec *r, apr_time_t mtime); + +/** + * Build the content-type that should be sent to the client from the + * content-type specified. The following rules are followed: + * - if type is NULL, type is set to ap_default_type(r) + * - if charset adding is disabled, stop processing and return type. + * - then, if there are no parameters on type, add the default charset + * - return type + * @param r The current request + * @return The content-type + * @deffunc const char *ap_make_content_type(request_rec *r, const char *type); + */ +AP_DECLARE(const char *) ap_make_content_type(request_rec *r, + const char *type); + +#ifdef CORE_PRIVATE +/** + * Precompile metadata structures used by ap_make_content_type() + * @param r The pool to use for allocations + * @deffunc void ap_setup_make_content_type(apr_pool_t *pool) + */ +AP_DECLARE(void) ap_setup_make_content_type(apr_pool_t *pool); +#endif /* CORE_PRIVATE */ + +/** + * Construct an entity tag from the resource information. If it's a real + * file, build in some of the file characteristics. + * @param r The current request + * @param force_weak Force the entity tag to be weak - it could be modified + * again in as short an interval. + * @return The entity tag + * @deffunc char *ap_make_etag(request_rec *r, int force_weak) + */ +AP_DECLARE(char *) ap_make_etag(request_rec *r, int force_weak); + +/** + * Set the E-tag outgoing header + * @param The current request + * @deffunc void ap_set_etag(request_rec *r) + */ +AP_DECLARE(void) ap_set_etag(request_rec *r); + +/** + * Set the last modified time for the file being sent + * @param r The current request + * @deffunc void ap_set_last_modified(request_rec *r) + */ +AP_DECLARE(void) ap_set_last_modified(request_rec *r); + +/** + * Implements condition GET rules for HTTP/1.1 specification. This function + * inspects the client headers and determines if the response fulfills + * the requirements specified. + * @param r The current request + * @return OK if the response fulfills the condition GET rules, some + * other status code otherwise + * @deffunc int ap_meets_conditions(request_rec *r) + */ +AP_DECLARE(int) ap_meets_conditions(request_rec *r); + +/* Other ways to send stuff at the client. All of these keep track + * of bytes_sent automatically. This indirection is intended to make + * it a little more painless to slide things like HTTP-NG packetization + * underneath the main body of the code later. In the meantime, it lets + * us centralize a bit of accounting (bytes_sent). + * + * These also return the number of bytes written by the call. + * They should only be called with a timeout registered, for obvious reaasons. + * (Ditto the send_header stuff). + */ + +/** + * Send an entire file to the client, using sendfile if supported by the + * current platform + * @param fd The file to send. + * @param r The current request + * @param offset Offset into the file to start sending. + * @param length Amount of data to send + * @param nbytes Amount of data actually sent + * @deffunc apr_status_t ap_send_fd(apr_file_t *fd, request_rec *r, apr_off_t offset, apr_size_t length, apr_size_t *nbytes); + */ +AP_DECLARE(apr_status_t) ap_send_fd(apr_file_t *fd, request_rec *r, apr_off_t offset, + apr_size_t length, apr_size_t *nbytes); + +#if APR_HAS_MMAP +/** + * Send an MMAP'ed file to the client + * @param mm The MMAP'ed file to send + * @param r The current request + * @param offset The offset into the MMAP to start sending + * @param length The amount of data to send + * @return The number of bytes sent + * @deffunc size_t ap_send_mmap(apr_mmap_t *mm, request_rec *r, size_t offset, size_t length) + */ +AP_DECLARE(size_t) ap_send_mmap(apr_mmap_t *mm, request_rec *r, size_t offset, + size_t length); +#endif + + +/** + * Register a new request method, and return the offset that will be + * associated with that method. + * + * @param p The pool to create registered method numbers from. + * @param methname The name of the new method to register. + * @return Ab int value representing an offset into a bitmask. + */ +AP_DECLARE(int) ap_method_register(apr_pool_t *p, const char *methname); + +/** + * Initialize the method_registry and allocate memory for it. + * + * @param p Pool to allocate memory for the registry from. + */ +AP_DECLARE(void) ap_method_registry_init(apr_pool_t *p); + +/* + * This is a convenience macro to ease with checking a mask + * against a method name. + */ +#define AP_METHOD_CHECK_ALLOWED(mask, methname) \ + ((mask) & (AP_METHOD_BIT << ap_method_number_of((methname)))) + +/** + * Create a new method list with the specified number of preallocated + * slots for extension methods. + * + * @param p Pointer to a pool in which the structure should be + * allocated. + * @param nelts Number of preallocated extension slots + * @return Pointer to the newly created structure. + * @deffunc ap_method_list_t ap_make_method_list(apr_pool_t *p, int nelts) + */ +AP_DECLARE(ap_method_list_t *) ap_make_method_list(apr_pool_t *p, int nelts); +AP_DECLARE(void) ap_copy_method_list(ap_method_list_t *dest, + ap_method_list_t *src); +AP_DECLARE_NONSTD(void) ap_method_list_do(int (*comp) (void *urec, const char *mname, + int mnum), + void *rec, + const ap_method_list_t *ml, ...); +AP_DECLARE(void) ap_method_list_vdo(int (*comp) (void *urec, const char *mname, + int mnum), + void *rec, const ap_method_list_t *ml, + va_list vp); +/** + * Search for an HTTP method name in an ap_method_list_t structure, and + * return true if found. + * + * @param method String containing the name of the method to check. + * @param l Pointer to a method list, such as cmd->methods_limited. + * @return 1 if method is in the list, otherwise 0 + * @deffunc int ap_method_in_list(const char *method, ap_method_list_t *l) + */ +AP_DECLARE(int) ap_method_in_list(ap_method_list_t *l, const char *method); + +/** + * Add an HTTP method name to an ap_method_list_t structure if it isn't + * already listed. + * + * @param method String containing the name of the method to check. + * @param l Pointer to a method list, such as cmd->methods_limited. + * @return None. + * @deffunc void ap_method_in_list(ap_method_list_t *l, const char *method) + */ +AP_DECLARE(void) ap_method_list_add(ap_method_list_t *l, const char *method); + +/** + * Remove an HTTP method name from an ap_method_list_t structure. + * + * @param l Pointer to a method list, such as cmd->methods_limited. + * @param method String containing the name of the method to remove. + * @return None. + * @deffunc void ap_method_list_remove(ap_method_list_t *l, const char *method) + */ +AP_DECLARE(void) ap_method_list_remove(ap_method_list_t *l, + const char *method); + +/** + * Reset a method list to be completely empty. + * + * @param l Pointer to a method list, such as cmd->methods_limited. + * @return None. + * @deffunc void ap_clear_method_list(ap_method_list_t *l) + */ +AP_DECLARE(void) ap_clear_method_list(ap_method_list_t *l); + +/** + * Set the content type for this request (r->content_type). + * @param r The current request + * @param ct The new content type + * @deffunc void ap_set_content_type(request_rec *r, const char* ct) + * @warning This function must be called to set r->content_type in order + * for the AddOutputFilterByType directive to work correctly. + */ +AP_DECLARE(void) ap_set_content_type(request_rec *r, const char *ct); + +/* Hmmm... could macrofy these for now, and maybe forever, though the + * definitions of the macros would get a whole lot hairier. + */ + +/** + * Output one character for this request + * @param c the character to output + * @param r the current request + * @return The number of bytes sent + * @deffunc int ap_rputc(int c, request_rec *r) + */ +AP_DECLARE(int) ap_rputc(int c, request_rec *r); + +/** + * Output a string for the current request + * @param str The string to output + * @param r The current request + * @return The number of bytes sent + * @deffunc int ap_rputs(const char *str, request_rec *r) + */ +AP_DECLARE(int) ap_rputs(const char *str, request_rec *r); + +/** + * Write a buffer for the current request + * @param buf The buffer to write + * @param nbyte The number of bytes to send from the buffer + * @param r The current request + * @return The number of bytes sent + * @deffunc int ap_rwrite(const void *buf, int nbyte, request_rec *r) + */ +AP_DECLARE(int) ap_rwrite(const void *buf, int nbyte, request_rec *r); + +/** + * Write an unspecified number of strings to the request + * @param r The current request + * @param ... The strings to write + * @return The number of bytes sent + * @deffunc int ap_rvputs(request_rec *r, ...) + */ +AP_DECLARE_NONSTD(int) ap_rvputs(request_rec *r,...); + +/** + * Output data to the client in a printf format + * @param r The current request + * @param fmt The format string + * @param vlist The arguments to use to fill out the format string + * @return The number of bytes sent + * @deffunc int ap_vrprintf(request_rec *r, const char *fmt, va_list vlist) + */ +AP_DECLARE(int) ap_vrprintf(request_rec *r, const char *fmt, va_list vlist); + +/** + * Output data to the client in a printf format + * @param r The current request + * @param fmt The format string + * @param ... The arguments to use to fill out the format string + * @return The number of bytes sent + * @deffunc int ap_rprintf(request_rec *r, const char *fmt, ...) + */ +AP_DECLARE_NONSTD(int) ap_rprintf(request_rec *r, const char *fmt,...) + __attribute__((format(printf,2,3))); +/** + * Flush all of the data for the current request to the client + * @param r The current request + * @return The number of bytes sent + * @deffunc int ap_rflush(request_rec *r) + */ +AP_DECLARE(int) ap_rflush(request_rec *r); + +/** + * Index used in custom_responses array for a specific error code + * (only use outside protocol.c is in getting them configured). + * @param status HTTP status code + * @return The index of the response + * @deffunc int ap_index_of_response(int status) + */ +AP_DECLARE(int) ap_index_of_response(int status); + +/** + * Return the Status-Line for a given status code (excluding the + * HTTP-Version field). If an invalid or unknown status code is + * passed, "500 Internal Server Error" will be returned. + * @param status The HTTP status code + * @return The Status-Line + * @deffunc const char *ap_get_status_line(int status) + */ +AP_DECLARE(const char *) ap_get_status_line(int status); + +/* Reading a block of data from the client connection (e.g., POST arg) */ + +/** + * Setup the client to allow Apache to read the request body. + * @param r The current request + * @param read_policy How the server should interpret a chunked + * transfer-encoding. One of: <pre> + * REQUEST_NO_BODY Send 413 error if message has any body + * REQUEST_CHUNKED_ERROR Send 411 error if body without Content-Length + * REQUEST_CHUNKED_DECHUNK If chunked, remove the chunks for me. + * </pre> + * @return either OK or an error code + * @deffunc int ap_setup_client_block(request_rec *r, int read_policy) + */ +AP_DECLARE(int) ap_setup_client_block(request_rec *r, int read_policy); + +/** + * Determine if the client has sent any data. This also sends a + * 100 Continue response to HTTP/1.1 clients, so modules should not be called + * until the module is ready to read content. + * @warning Never call this function more than once. + * @param r The current request + * @return 0 if there is no message to read, 1 otherwise + * @deffunc int ap_should_client_block(request_rec *r) + */ +AP_DECLARE(int) ap_should_client_block(request_rec *r); + +/** + * Call this in a loop. It will put data into a buffer and return the length + * of the input block + * @param r The current request + * @param buffer The buffer in which to store the data + * @param bufsiz The size of the buffer + * @return Number of bytes inserted into the buffer. When done reading, 0 + * if EOF, or -1 if there was an error + * @deffunc long ap_get_client_block(request_rec *r, char *buffer, apr_size_t bufsiz) + */ +AP_DECLARE(long) ap_get_client_block(request_rec *r, char *buffer, apr_size_t bufsiz); + +/** + * In HTTP/1.1, any method can have a body. However, most GET handlers + * wouldn't know what to do with a request body if they received one. + * This helper routine tests for and reads any message body in the request, + * simply discarding whatever it receives. We need to do this because + * failing to read the request body would cause it to be interpreted + * as the next request on a persistent connection. + * @param r The current request + * @return error status if request is malformed, OK otherwise + * @deffunc int ap_discard_request_body(request_rec *r) + */ +AP_DECLARE(int) ap_discard_request_body(request_rec *r); + + +/** + * Setup the output headers so that the client knows how to authenticate + * itself the next time, if an authentication request failed. This function + * works for both basic and digest authentication + * @param r The current request + * @deffunc void ap_note_auth_failure(request_rec *r) + */ +AP_DECLARE(void) ap_note_auth_failure(request_rec *r); + +/** + * Setup the output headers so that the client knows how to authenticate + * itself the next time, if an authentication request failed. This function + * works only for basic authentication + * @param r The current request + * @deffunc void ap_note_basic_auth_failure(request_rec *r) + */ +AP_DECLARE(void) ap_note_basic_auth_failure(request_rec *r); + +/** + * Setup the output headers so that the client knows how to authenticate + * itself the next time, if an authentication request failed. This function + * works only for digest authentication + * @param r The current request + * @deffunc void ap_note_digest_auth_failure(request_rec *r) + */ +AP_DECLARE(void) ap_note_digest_auth_failure(request_rec *r); + +/** + * Get the password from the request headers + * @param r The current request + * @param pw The password as set in the headers + * @return 0 (OK) if it set the 'pw' argument (and assured + * a correct value in r->user); otherwise it returns + * an error code, either HTTP_INTERNAL_SERVER_ERROR if things are + * really confused, HTTP_UNAUTHORIZED if no authentication at all + * seemed to be in use, or DECLINED if there was authentication but + * it wasn't Basic (in which case, the caller should presumably + * decline as well). + * @deffunc int ap_get_basic_auth_pw(request_rec *r, const char **pw) + */ +AP_DECLARE(int) ap_get_basic_auth_pw(request_rec *r, const char **pw); + +/** + * parse_uri: break apart the uri + * @warning Side Effects: <pre> + * - sets r->args to rest after '?' (or NULL if no '?') + * - sets r->uri to request uri (without r->args part) + * - sets r->hostname (if not set already) from request (scheme://host:port) + * </pre> + * @param r The current request + * @param uri The uri to break apart + * @deffunc void ap_parse_uri(request_rec *r, const char *uri) + */ +AP_CORE_DECLARE(void) ap_parse_uri(request_rec *r, const char *uri); + +/** + * Get the next line of input for the request + * @param s The buffer into which to read the line + * @param n The size of the buffer + * @param r The request + * @param fold Whether to merge continuation lines + * @return The length of the line, if successful + * n, if the line is too big to fit in the buffer + * -1 for miscellaneous errors + * @deffunc int ap_method_number_of(const char *method) + */ +AP_DECLARE(int) ap_getline(char *s, int n, request_rec *r, int fold); + +/** + * Get the next line of input for the request + * + * Note: on ASCII boxes, ap_rgetline is a macro which simply calls + * ap_rgetline_core to get the line of input. + * + * on EBCDIC boxes, ap_rgetline is a wrapper function which + * translates ASCII protocol lines to the local EBCDIC code page + * after getting the line of input. + * + * @param s Pointer to the pointer to the buffer into which the line + * should be read; if *s==NULL, a buffer of the necessary size + * to hold the data will be allocated from the request pool + * @param n The size of the buffer + * @param read The length of the line. + * @param r The request + * @param fold Whether to merge continuation lines + * @param bb Working brigade to use when reading buckets + * @return APR_SUCCESS, if successful + * APR_ENOSPC, if the line is too big to fit in the buffer + * Other errors where appropriate + */ +#if APR_CHARSET_EBCDIC +AP_DECLARE(apr_status_t) ap_rgetline(char **s, apr_size_t n, + apr_size_t *read, + request_rec *r, int fold, + apr_bucket_brigade *bb); +#else /* ASCII box */ +#define ap_rgetline(s, n, read, r, fold, bb) \ + ap_rgetline_core((s), (n), (read), (r), (fold), (bb)) +#endif +AP_DECLARE(apr_status_t) ap_rgetline_core(char **s, apr_size_t n, + apr_size_t *read, + request_rec *r, int fold, + apr_bucket_brigade *bb); + +/** + * Get the method number associated with the given string, assumed to + * contain an HTTP method. Returns M_INVALID if not recognized. + * @param method A string containing a valid HTTP method + * @return The method number + */ +AP_DECLARE(int) ap_method_number_of(const char *method); + +/** + * Get the method name associated with the given internal method + * number. Returns NULL if not recognized. + * @param p A pool to use for temporary allocations. + * @param methnum An integer value corresponding to an internal method number + * @return The name corresponding to the method number + */ +AP_DECLARE(const char *) ap_method_name_of(apr_pool_t *p, int methnum); + + + /* Hooks */ + /* + * post_read_request --- run right after read_request or internal_redirect, + * and not run during any subrequests. + */ +/** + * This hook allows modules to affect the request immediately after the request + * has been read, and before any other phases have been processes. This allows + * modules to make decisions based upon the input header fields + * @param r The current request + * @return OK or DECLINED + * @deffunc ap_run_post_read_request(request_rec *r) + */ +AP_DECLARE_HOOK(int,post_read_request,(request_rec *r)) + +/** + * This hook allows modules to perform any module-specific logging activities + * over and above the normal server things. + * @param r The current request + * @return OK, DECLINED, or HTTP_... + * @deffunc int ap_run_log_transaction(request_rec *r) + */ +AP_DECLARE_HOOK(int,log_transaction,(request_rec *r)) + +/** + * This hook allows modules to retrieve the http method from a request. This + * allows Apache modules to easily extend the methods that Apache understands + * @param r The current request + * @return The http method from the request + * @deffunc const char *ap_run_http_method(const request_rec *r) + */ +AP_DECLARE_HOOK(const char *,http_method,(const request_rec *r)) + +/** + * Return the default port from the current request + * @param r The current request + * @return The current port + * @deffunc apr_port_t ap_run_default_port(const request_rec *r) + */ +AP_DECLARE_HOOK(apr_port_t,default_port,(const request_rec *r)) + +typedef struct ap_bucket_error ap_bucket_error; + +/** + * A bucket referring to an HTTP error + * This bucket can be passed down the filter stack to indicate that an + * HTTP error occurred while running a filter. In order for this bucket + * to be used successfully, it MUST be sent as the first bucket in the + * first brigade to be sent from a given filter. + */ +struct ap_bucket_error { + /** Number of buckets using this memory */ + apr_bucket_refcount refcount; + /** The error code */ + int status; + /** The error string */ + const char *data; +}; + +AP_DECLARE_DATA extern const apr_bucket_type_t ap_bucket_type_error; + +/** + * Determine if a bucket is an error bucket + * @param e The bucket to inspect + * @return true or false + */ +#define AP_BUCKET_IS_ERROR(e) (e->type == &ap_bucket_type_error) + +/** + * Make the bucket passed in an error bucket + * @param b The bucket to make into an error bucket + * @param error The HTTP error code to put in the bucket. + * @param buf An optional error string to put in the bucket. + * @param p A pool to allocate out of. + * @return The new bucket, or NULL if allocation failed + * @deffunc apr_bucket *ap_bucket_error_make(apr_bucket *b, int error, const char *buf, apr_pool_t *p) + */ +AP_DECLARE(apr_bucket *) ap_bucket_error_make(apr_bucket *b, int error, + const char *buf, apr_pool_t *p); + +/** + * Create a bucket referring to an HTTP error. + * @param error The HTTP error code to put in the bucket. + * @param buf An optional error string to put in the bucket. + * @param p A pool to allocate the error string out of. + * @param list The bucket allocator from which to allocate the bucket + * @return The new bucket, or NULL if allocation failed + * @deffunc apr_bucket *ap_bucket_error_create(int error, const char *buf, apr_pool_t *p, apr_bucket_alloc_t *list) + */ +AP_DECLARE(apr_bucket *) ap_bucket_error_create(int error, const char *buf, + apr_pool_t *p, + apr_bucket_alloc_t *list); + +AP_DECLARE_NONSTD(apr_status_t) ap_byterange_filter(ap_filter_t *f, apr_bucket_brigade *b); +AP_DECLARE_NONSTD(apr_status_t) ap_http_header_filter(ap_filter_t *f, apr_bucket_brigade *b); +AP_DECLARE_NONSTD(apr_status_t) ap_content_length_filter(ap_filter_t *, + apr_bucket_brigade *); +AP_DECLARE_NONSTD(apr_status_t) ap_old_write_filter(ap_filter_t *f, apr_bucket_brigade *b); + +/* + * Setting up the protocol fields for subsidiary requests... + * Also, a wrapup function to keep the internal accounting straight. + */ +AP_DECLARE(void) ap_set_sub_req_protocol(request_rec *rnew, const request_rec *r); +AP_DECLARE(void) ap_finalize_sub_req_protocol(request_rec *sub_r); + +#ifdef __cplusplus +} +#endif + +#endif /* !APACHE_HTTP_PROTOCOL_H */ |