Commit 58cccf30 authored by Philipp Schafft's avatar Philipp Schafft 🦁

Feature: Added mico-library for Transfer Encodings.

This adds a micro library for handling HTTP Transfer encodings.
This is mostly to implement PUT with chunked support in Icecast2.
parent ae2a956d
......@@ -3,9 +3,9 @@
noinst_HEADERS = httpp.h
noinst_HEADERS = httpp.h encoding.h
libicehttpp_la_SOURCES = httpp.c
libicehttpp_la_SOURCES = httpp.c encoding.c
libicehttpp_la_CFLAGS = @XIPH_CFLAGS@
This diff is collapsed.
/* encoding.h
** http transfer encoding library
** See RFC2616 section 3.6 for more details.
** Copyright (C) 2015 Philipp "ph3-der-loewe" Schafft <>
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Library General Public
** License as published by the Free Software Foundation; either
** version 2 of the License, or (at your option) any later version.
** This library is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** Library General Public License for more details.
** You should have received a copy of the GNU Library General Public
** License along with this library; if not, write to the
** Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
** Boston, MA 02110-1301, USA.
#ifndef __ENCODING_H
#define __ENCODING_H
#include <sys/types.h>
/* known encodings */
#define HTTPP_ENCODING_IDENTITY "identity" /* RFC2616 */
#define HTTPP_ENCODING_CHUNKED "chunked" /* RFC2616 */
#define HTTPP_ENCODING_GZIP "gzip" /* RFC1952 */
#define HTTPP_ENCODING_COMPRESS "compress" /* ??? */
#define HTTPP_ENCODING_DEFLATE "deflate" /* RFC1950, RFC1951 */
typedef struct httpp_encoding_tag httpp_encoding_t;
typedef struct httpp_meta_tag httpp_meta_t;
struct httpp_meta_tag {
char *key;
void *value;
size_t value_len;
httpp_meta_t *next;
/* meta data functions */
/* meta data is to be used in a encoding-specific way */
httpp_meta_t *httpp_encoding_meta_new(const char *key, const char *value);
int httpp_encoding_meta_free(httpp_meta_t *self);
int httpp_encoding_meta_append(httpp_meta_t **dst, httpp_meta_t *next);
/* General setup */
httpp_encoding_t *httpp_encoding_new(const char *encoding);
int httpp_encoding_addref(httpp_encoding_t *self);
int httpp_encoding_release(httpp_encoding_t *self);
/* Read data from backend.
* if cb is NULL this will read from the internal buffer.
ssize_t httpp_encoding_read(httpp_encoding_t *self, void *buf, size_t len, ssize_t (*cb)(void*, void*, size_t), void *userdata);
/* Read any meta data that is in buffer.
* After a call to this function the meta data is released from the
* encoding object and the caller is responsible to free it.
httpp_meta_t *httpp_encoding_get_meta(httpp_encoding_t *self);
/* Write data to backend.
* If buf is NULL this will flush buffers.
* Depending on encoding flushing buffers may not be safe if not
* at end of stream.
ssize_t httpp_encoding_write(httpp_encoding_t *self, const void *buf, size_t len, ssize_t (*cb)(void*, const void*, size_t), void *userdata);
/* Check if we have something to flush. */
ssize_t httpp_encoding_pending(httpp_encoding_t *self);
/* Attach meta data to the stream.
* this is to be written out as soon as the encoding supports.
int httpp_encoding_append_meta(httpp_encoding_t *self, httpp_meta_t *meta);
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