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96 lines
3.7 KiB
96 lines
3.7 KiB
5 months ago
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/*
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* include/haproxy/http_htx-t.h
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* This file defines everything related to HTTP manipulation using the internal
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* representation.
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*
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* Copyright (C) 2018 HAProxy Technologies, Christopher Faulet <cfaulet@haproxy.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _HAPROXY_HTTP_HTX_T_H
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#define _HAPROXY_HTTP_HTX_T_H
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#include <import/ebistree.h>
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#include <import/ist.h>
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#include <haproxy/buf-t.h>
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#include <haproxy/http-t.h>
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#include <haproxy/htx-t.h>
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/* Context used to find/remove an HTTP header. */
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struct http_hdr_ctx {
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struct htx_blk *blk;
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struct ist value;
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uint16_t lws_before;
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uint16_t lws_after;
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};
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/* Structure used to build the header list of an HTTP reply */
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struct http_reply_hdr {
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struct ist name; /* the header name */
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struct list value; /* the log-format string value */
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struct list list; /* header chained list */
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};
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#define HTTP_REPLY_EMPTY 0x00 /* the reply has no payload */
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#define HTTP_REPLY_ERRMSG 0x01 /* the reply is an error message (may be NULL) */
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#define HTTP_REPLY_ERRFILES 0x02 /* the reply references an http-errors section */
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#define HTTP_REPLY_RAW 0x03 /* the reply use a raw payload */
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#define HTTP_REPLY_LOGFMT 0x04 /* the reply use a log-format payload */
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#define HTTP_REPLY_INDIRECT 0x05 /* the reply references another http-reply (may be NULL) */
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/* Uses by HAProxy to generate internal responses */
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struct http_reply {
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unsigned char type; /* HTTP_REPLY_* */
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int status; /* The response status code */
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char *ctype; /* The response content-type, may be NULL */
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struct list hdrs; /* A list of http_reply_hdr */
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union {
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struct list fmt; /* A log-format string (type = HTTP_REPLY_LOGFMT) */
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struct buffer obj; /* A raw string (type = HTTP_REPLY_RAW) */
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struct buffer *errmsg; /* The error message to use as response (type = HTTP_REPLY_ERRMSG).
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* may be NULL, if so rely on the proxy error messages */
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struct http_reply *reply; /* The HTTP reply to use as response (type = HTTP_REPLY_INDIRECT) */
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char *http_errors; /* The http-errors section to use (type = HTTP_REPLY_ERRFILES).
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* Should be resolved during post-check */
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} body;
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struct list list; /* next http_reply in the global list.
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* Only used for replies defined in a proxy section */
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};
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/* A custom HTTP error message load from a row file and converted in HTX. The
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* node key is the file path.
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*/
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struct http_error_msg {
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struct buffer msg;
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struct ebpt_node node;
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};
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/* http-errors section and parameters. */
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struct http_errors {
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char *id; /* unique identifier */
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struct {
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char *file; /* file where the section appears */
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int line; /* line where the section appears */
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} conf; /* config information */
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struct http_reply *replies[HTTP_ERR_SIZE]; /* HTTP replies for known errors */
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struct list list; /* http-errors list */
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};
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#endif /* _HAPROXY_HTTP_HTX_T_H */
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