346 lines
9.8 KiB
C
346 lines
9.8 KiB
C
/*
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Copyright (c) 2016-2020 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MIO_HTTP_H_
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#define _MIO_HTTP_H_
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#include <mio-ecs.h>
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#include <mio-sck.h>
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#include <mio-htre.h>
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#include <mio-thr.h>
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/** \file
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* This file provides basic data types and functions for the http protocol.
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*/
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/**
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* The #mio_http_range_int_t type defines an integer that can represent
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* a range offset. Depening on the size of #mio_foff_t, it is defined to
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* either #mio_foff_t or #mio_ulong_t.
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*/
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#if defined(MIO_SIZEOF_FOFF_T) && defined(MIO_SIZEOF_UINTMAX_T) && (MIO_SIZEOF_FOFF_T > MIO_SIZEOF_UINTMAX_T)
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typedef mio_foff_t mio_http_range_int_t;
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#else
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typedef mio_uintmax_t mio_http_range_int_t;
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#endif
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enum mio_http_range_type_t
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{
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MIO_HTTP_RANGE_PROPER,
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MIO_HTTP_RANGE_PREFIX,
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MIO_HTTP_RANGE_SUFFIX
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};
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typedef enum mio_http_range_type_t mio_http_range_type_t;
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/**
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* The mio_http_range_t type defines a structure that can represent
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* a value for the \b Range: http header.
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*
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* If type is #MIO_HTTP_RANGE_PREFIX, 'to' is meaningless and 'from' indicates
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* the number of bytes from the start.
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* - 500- => from the 501st bytes all the way to the back.
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*
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* If type is #MIO_HTTP_RANGE_SUFFIX, 'from' is meaningless and 'to' indicates
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* the number of bytes from the back.
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* - -500 => last 500 bytes
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*
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* If type is #MIO_HTTP_RANGE_PROPER, 'from' and 'to' represents a proper range
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* where the value of 0 indicates the first byte. This doesn't require any
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* adjustment.
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* - 0-999 => first 1000 bytes
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* - 99- => from the 100th bytes to the end.
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*/
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struct mio_http_range_t
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{
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mio_http_range_type_t type; /**< type indicator */
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mio_http_range_int_t from; /**< starting offset */
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mio_http_range_int_t to; /**< ending offset */
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};
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typedef struct mio_http_range_t mio_http_range_t;
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enum mio_perenc_http_opt_t
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{
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MIO_PERENC_HTTP_KEEP_SLASH = (1 << 0)
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};
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typedef enum mio_perenc_http_opt_t mio_perenc_bcstr_opt_t;
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/* -------------------------------------------------------------- */
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typedef struct mio_svc_htts_t mio_svc_htts_t;
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typedef struct mio_svc_httc_t mio_svc_httc_t;
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/* -------------------------------------------------------------- */
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typedef struct mio_svc_htts_rsrc_t mio_svc_htts_rsrc_t;
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typedef void (*mio_svc_htts_rsrc_on_kill_t) (
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mio_svc_htts_rsrc_t* rsrc
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);
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#define MIO_SVC_HTTS_RSRC_HEADER \
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mio_svc_htts_t* htts; \
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mio_oow_t rsrc_size; \
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mio_oow_t rsrc_refcnt; \
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mio_svc_htts_rsrc_on_kill_t rsrc_on_kill
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struct mio_svc_htts_rsrc_t
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{
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MIO_SVC_HTTS_RSRC_HEADER;
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};
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#define MIO_SVC_HTTS_RSRC_ATTACH(rsrc, var) do { (var) = (rsrc); ++(rsrc)->rsrc_refcnt; } while(0)
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#define MIO_SVC_HTTS_RSRC_DETACH(rsrc_var) do { if (--(rsrc_var)->rsrc_refcnt == 0) { mio_svc_htts_rsrc_t* __rsrc_tmp = (rsrc_var); (rsrc_var) = MIO_NULL; mio_svc_htts_rsrc_kill(__rsrc_tmp); } else { (rsrc_var) = MIO_NULL; } } while(0)
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/* -------------------------------------------------------------- */
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typedef int (*mio_svc_htts_proc_req_t) (
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mio_svc_htts_t* htts,
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mio_dev_sck_t* sck,
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mio_htre_t* req
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);
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/* -------------------------------------------------------------- */
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struct mio_svc_htts_thr_func_info_t
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{
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mio_t* mio;
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mio_http_method_t req_method;
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mio_http_version_t req_version;
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mio_bch_t* req_path;
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mio_bch_t* req_param;
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int req_x_http_method_override; /* -1 or mio_http_method_t */
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/* TODO: header table */
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mio_skad_t client_addr;
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mio_skad_t server_addr;
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};
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typedef struct mio_svc_htts_thr_func_info_t mio_svc_htts_thr_func_info_t;
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typedef void (*mio_svc_htts_thr_func_t) (
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mio_t* mio,
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mio_dev_thr_iopair_t* iop,
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mio_svc_htts_thr_func_info_t* info,
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void* ctx
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);
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/* -------------------------------------------------------------- */
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#if defined(__cplusplus)
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extern "C" {
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#endif
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MIO_EXPORT int mio_comp_http_versions (
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const mio_http_version_t* v1,
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const mio_http_version_t* v2
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);
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MIO_EXPORT int mio_comp_http_version_numbers (
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const mio_http_version_t* v1,
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int v2_major,
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int v2_minor
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);
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MIO_EXPORT const mio_bch_t* mio_http_status_to_bcstr (
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int code
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);
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MIO_EXPORT const mio_bch_t* mio_http_method_to_bcstr (
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mio_http_method_t type
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);
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MIO_EXPORT mio_http_method_t mio_bcstr_to_http_method (
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const mio_bch_t* name
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);
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MIO_EXPORT mio_http_method_t mio_bchars_to_http_method (
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const mio_bch_t* nameptr,
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mio_oow_t namelen
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);
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MIO_EXPORT int mio_parse_http_range_bcstr (
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const mio_bch_t* str,
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mio_http_range_t* range
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);
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MIO_EXPORT int mio_parse_http_time_bcstr (
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const mio_bch_t* str,
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mio_ntime_t* nt
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);
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MIO_EXPORT mio_bch_t* mio_fmt_http_time_to_bcstr (
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const mio_ntime_t* nt,
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mio_bch_t* buf,
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mio_oow_t bufsz
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);
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/**
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* The mio_is_perenced_http_bcstr() function determines if the given string
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* contains a valid percent-encoded sequence.
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*/
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MIO_EXPORT int mio_is_perenced_http_bcstr (
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const mio_bch_t* str
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);
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/**
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* The mio_perdec_http_bcstr() function performs percent-decoding over a string.
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* The caller must ensure that the output buffer \a buf is large enough.
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* If \a ndecs is not #MIO_NULL, it is set to the number of characters
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* decoded. 0 means no characters in the input string required decoding
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* \return the length of the output string.
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*/
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MIO_EXPORT mio_oow_t mio_perdec_http_bcstr (
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const mio_bch_t* str,
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mio_bch_t* buf,
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mio_oow_t* ndecs
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);
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/**
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* The mio_perdec_http_bcstr() function performs percent-decoding over a length-bound string.
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* It doesn't insert the terminating null.
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*/
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MIO_EXPORT mio_oow_t mio_perdec_http_bcs (
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const mio_bcs_t* str,
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mio_bch_t* buf,
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mio_oow_t* ndecs
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);
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/**
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* The mio_perenc_http_bcstr() function performs percent-encoding over a string.
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* The caller must ensure that the output buffer \a buf is large enough.
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* If \a nencs is not #MIO_NULL, it is set to the number of characters
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* encoded. 0 means no characters in the input string required encoding.
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* \return the length of the output string.
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*/
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MIO_EXPORT mio_oow_t mio_perenc_http_bcstr (
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int opt, /**< 0 or bitwise-OR'ed of #mio_perenc_http_bcstr_opt_t */
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const mio_bch_t* str,
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mio_bch_t* buf,
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mio_oow_t* nencs
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);
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#if 0
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/* TODO: rename this function according to the naming convension */
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MIO_EXPORT mio_bch_t* mio_perenc_http_bcstrdup (
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int opt, /**< 0 or bitwise-OR'ed of #mio_perenc_http_bcstr_opt_t */
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const mio_bch_t* str,
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mio_mmgr_t* mmgr
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);
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#endif
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MIO_EXPORT int mio_scan_http_qparam (
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mio_bch_t* qparam,
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int (*qparamcb) (mio_bcs_t* key, mio_bcs_t* val, void* ctx),
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void* ctx
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);
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/* ------------------------------------------------------------------------- */
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/* HTTP SERVER SERVICE */
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/* ------------------------------------------------------------------------- */
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MIO_EXPORT mio_svc_htts_t* mio_svc_htts_start (
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mio_t* mio,
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const mio_skad_t* bind_addr,
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mio_svc_htts_proc_req_t proc_req
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);
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MIO_EXPORT void mio_svc_htts_stop (
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mio_svc_htts_t* htts
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);
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#if defined(MIO_HAVE_INLINE)
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static MIO_INLINE mio_t* mio_svc_htts_getmio(mio_svc_htts_t* svc) { return mio_svc_getmio((mio_svc_t*)svc); }
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#else
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# define mio_svc_htts_getmio(svc) mio_svc_getmio(svc)
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#endif
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MIO_EXPORT int mio_svc_htts_setservernamewithbcstr (
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mio_svc_htts_t* htts,
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const mio_bch_t* server_name
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);
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MIO_EXPORT int mio_svc_htts_docgi (
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mio_svc_htts_t* htts,
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mio_dev_sck_t* csck,
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mio_htre_t* req,
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const mio_bch_t* docroot,
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const mio_bch_t* script
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);
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MIO_EXPORT int mio_svc_htts_dofile (
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mio_svc_htts_t* htts,
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mio_dev_sck_t* csck,
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mio_htre_t* req,
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const mio_bch_t* docroot,
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const mio_bch_t* script
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);
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MIO_EXPORT int mio_svc_htts_dothr (
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mio_svc_htts_t* htts,
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mio_dev_sck_t* csck,
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mio_htre_t* req,
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mio_svc_htts_thr_func_t func,
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void* ctx
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);
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MIO_EXPORT int mio_svc_htts_dotxt (
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mio_svc_htts_t* htts,
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mio_dev_sck_t* csck,
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mio_htre_t* req,
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int status_code,
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const mio_bch_t* content_type,
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const mio_bch_t* content_text
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);
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MIO_EXPORT mio_svc_htts_rsrc_t* mio_svc_htts_rsrc_make (
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mio_svc_htts_t* htts,
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mio_oow_t rsrc_size,
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mio_svc_htts_rsrc_on_kill_t on_kill
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);
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MIO_EXPORT void mio_svc_htts_rsrc_kill (
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mio_svc_htts_rsrc_t* rsrc
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);
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MIO_EXPORT void mio_svc_htts_fmtgmtime (
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mio_svc_htts_t* htts,
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const mio_ntime_t* nt,
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mio_bch_t* buf,
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mio_oow_t len
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);
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MIO_EXPORT mio_bch_t* mio_svc_htts_dupmergepaths (
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mio_svc_htts_t* htts,
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const mio_bch_t* base,
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const mio_bch_t* path
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);
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#if defined(__cplusplus)
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}
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#endif
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#endif
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