diff options
author | Roy T. Fielding <fielding@apache.org> | 1999-08-24 07:50:50 +0200 |
---|---|---|
committer | Roy T. Fielding <fielding@apache.org> | 1999-08-24 07:50:50 +0200 |
commit | ef31f584249e7389c762991a7aee9fde5d9effca (patch) | |
tree | 1e66322c66ed439d09fb794589cfb226574039f6 /include/http_protocol.h | |
parent | Apache 1.3.9 baseline for the Apache 2.0 repository. (diff) | |
download | apache2-ef31f584249e7389c762991a7aee9fde5d9effca.tar.xz apache2-ef31f584249e7389c762991a7aee9fde5d9effca.zip |
Apache 1.3.9 baseline for the Apache 2.0 repository.
Obtained from: Apache 1.3.9 (minus unused files), tag APACHE_1_3_9
Submitted by: Apache Group
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@83749 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'include/http_protocol.h')
-rw-r--r-- | include/http_protocol.h | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/include/http_protocol.h b/include/http_protocol.h new file mode 100644 index 0000000000..3824c1aba0 --- /dev/null +++ b/include/http_protocol.h @@ -0,0 +1,223 @@ +/* ==================================================================== + * Copyright (c) 1995-1999 The Apache Group. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the Apache Group + * for use in the Apache HTTP server project (http://www.apache.org/)." + * + * 4. The names "Apache Server" and "Apache Group" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * apache@apache.org. + * + * 5. Products derived from this software may not be called "Apache" + * nor may "Apache" appear in their names without prior written + * permission of the Apache Group. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the Apache Group + * for use in the Apache HTTP server project (http://www.apache.org/)." + * + * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This software consists of voluntary contributions made by many + * individuals on behalf of the Apache Group and was originally based + * on public domain software written at the National Center for + * Supercomputing Applications, University of Illinois, Urbana-Champaign. + * For more information on the Apache Group and the Apache HTTP server + * project, please see <http://www.apache.org/>. + * + */ + +#ifndef APACHE_HTTP_PROTOCOL_H +#define APACHE_HTTP_PROTOCOL_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * 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. */ + +request_rec *ap_read_request(conn_rec *c); + +/* Send a single HTTP header field */ + +API_EXPORT_NONSTD(int) ap_send_header_field(request_rec *r, const char *fieldname, + const char *fieldval); + +/* Send the minimal part of an HTTP response header... but modules should be + * very careful about using this, and should prefer ap_send_http_header(). + * Much of the HTTP/1.1 implementation correctness depends on code in + * ap_send_http_header(). + */ +API_EXPORT(void) ap_basic_http_header(request_rec *r); + +/* Send the Status-Line and header fields for HTTP response */ + +API_EXPORT(void) ap_send_http_header(request_rec *l); + +/* Send the response to special method requests */ + +API_EXPORT(int) ap_send_http_trace(request_rec *r); +int ap_send_http_options(request_rec *r); + +/* Finish up stuff after a request */ + +API_EXPORT(void) ap_finalize_request_protocol(request_rec *r); + +/* Send error back to client... 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. + */ + +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 USE_LOCAL_COPY (that when the + * permit_cache argument is set to one). + */ + +API_EXPORT(int) ap_set_content_length(request_rec *r, long length); +API_EXPORT(int) ap_set_keepalive(request_rec *r); +API_EXPORT(time_t) ap_rationalize_mtime(request_rec *r, time_t mtime); +API_EXPORT(char *) ap_make_etag(request_rec *r, int force_weak); +API_EXPORT(void) ap_set_etag(request_rec *r); +API_EXPORT(void) ap_set_last_modified(request_rec *r); +API_EXPORT(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). + */ + +API_EXPORT(long) ap_send_fd(FILE *f, request_rec *r); +API_EXPORT(long) ap_send_fd_length(FILE *f, request_rec *r, long length); + +API_EXPORT(long) ap_send_fb(BUFF *f, request_rec *r); +API_EXPORT(long) ap_send_fb_length(BUFF *f, request_rec *r, long length); + +API_EXPORT(size_t) ap_send_mmap(void *mm, request_rec *r, size_t offset, + size_t length); + +/* Hmmm... could macrofy these for now, and maybe forever, though the + * definitions of the macros would get a whole lot hairier. + */ + +API_EXPORT(int) ap_rputc(int c, request_rec *r); +API_EXPORT(int) ap_rputs(const char *str, request_rec *r); +API_EXPORT(int) ap_rwrite(const void *buf, int nbyte, request_rec *r); +API_EXPORT_NONSTD(int) ap_rvputs(request_rec *r,...); +API_EXPORT(int) ap_vrprintf(request_rec *r, const char *fmt, va_list vlist); +API_EXPORT_NONSTD(int) ap_rprintf(request_rec *r, const char *fmt,...) + __attribute__((format(printf,2,3))); +API_EXPORT(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). + */ + +API_EXPORT(int) ap_index_of_response(int status); + +/* Reading a block of data from the client connection (e.g., POST arg) */ + +API_EXPORT(int) ap_setup_client_block(request_rec *r, int read_policy); +API_EXPORT(int) ap_should_client_block(request_rec *r); +API_EXPORT(long) ap_get_client_block(request_rec *r, char *buffer, int bufsiz); +API_EXPORT(int) ap_discard_request_body(request_rec *r); + +/* Sending a byterange */ + +API_EXPORT(int) ap_set_byterange(request_rec *r); +API_EXPORT(int) ap_each_byterange(request_rec *r, long *offset, long *length); + +/* Support for the Basic authentication protocol. Note that there's + * nothing that prevents these from being in mod_auth.c, except that other + * modules which wanted to provide their own variants on finding users and + * passwords for Basic auth (a fairly common request) would then require + * mod_auth to be loaded or they wouldn't work. + * + * get_basic_auth_pw returns 0 (OK) if it set the 'pw' argument (and assured + * a correct value in r->connection->user); otherwise it returns an error + * code, either SERVER_ERROR if things are really confused, AUTH_REQUIRED + * 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). + * + * note_basic_auth_failure arranges for the right stuff to be scribbled on + * the HTTP return so that the client knows how to authenticate itself the + * next time. As does note_digest_auth_failure for Digest auth. + * + * note_auth_failure does the same thing, but will call the correct one + * based on the authentication type in use. + * + */ + +API_EXPORT(void) ap_note_auth_failure(request_rec *r); +API_EXPORT(void) ap_note_basic_auth_failure(request_rec *r); +API_EXPORT(void) ap_note_digest_auth_failure(request_rec *r); +API_EXPORT(int) ap_get_basic_auth_pw(request_rec *r, const char **pw); + +/* + * Setting up the protocol fields for subsidiary requests... + * Also, a wrapup function to keep the internal accounting straight. + */ + +void ap_set_sub_req_protocol(request_rec *rnew, const request_rec *r); +void ap_finalize_sub_req_protocol(request_rec *sub_r); + +/* This is also useful for putting sub_reqs and internal_redirects together */ + +CORE_EXPORT(void) ap_parse_uri(request_rec *r, const char *uri); + +/* Get the method number associated with the given string, assumed to + * contain an HTTP method. Returns M_INVALID if not recognized. + */ +API_EXPORT(int) ap_method_number_of(const char *method); + +#ifdef __cplusplus +} +#endif + +#endif /* !APACHE_HTTP_PROTOCOL_H */ |