mirror of
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112 lines
4.1 KiB
C
112 lines
4.1 KiB
C
/*
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* Copyright (c) 2016 Lammert Bies
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* Copyright (c) 2013-2016 the Civetweb developers
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* Copyright (c) 2004-2013 Sergey Lyubka
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* ============
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* Release: 2.0
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*/
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#include "httplib_main.h"
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#include "httplib_ssl.h"
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/*
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* void XX_httplib_accept_new_connection( const struct socket *lostener, struct httplib_context *ctx );
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*
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* The function XX_httplib_accept_new_connection() is used to process new
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* incoming connections to the server.
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*/
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void XX_httplib_accept_new_connection( const struct socket *listener, struct httplib_context *ctx ) {
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struct socket so;
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char src_addr[IP_ADDR_STR_LEN];
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char error_string[ERROR_STRING_LEN];
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socklen_t len;
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int on;
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if ( listener == NULL ) return;
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on = 1;
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len = sizeof(so.rsa);
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so.sock = accept( listener->sock, &so.rsa.sa, &len );
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if ( so.sock == INVALID_SOCKET ) return;
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if ( ! XX_httplib_check_acl( ctx, ntohl(*(uint32_t *)&so.rsa.sin.sin_addr )) ) {
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XX_httplib_sockaddr_to_string( src_addr, sizeof(src_addr), &so.rsa );
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httplib_cry( DEBUG_LEVEL_INFO, ctx, NULL, "%s: %s is not allowed to connect", __func__, src_addr );
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closesocket( so.sock );
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so.sock = INVALID_SOCKET;
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}
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else {
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/*
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* Put so socket structure into the queue
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*/
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XX_httplib_set_close_on_exec( so.sock, ctx );
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so.has_ssl = listener->has_ssl;
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so.has_redir = listener->has_redir;
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if ( getsockname( so.sock, &so.lsa.sa, &len ) != 0 ) {
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httplib_cry( DEBUG_LEVEL_ERROR, ctx, NULL, "%s: getsockname() failed: %s", __func__, httplib_error_string( ERRNO, error_string, ERROR_STRING_LEN ) );
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}
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/*
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* Set TCP keep-alive. This is needed because if HTTP-level keep-alive
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* is enabled, and client resets the connection, server won't get
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* TCP FIN or RST and will keep the connection open forever. With
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* TCP keep-alive, next keep-alive handshake will figure out that
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* the client is down and will close the server end.
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* Thanks to Igor Klopov who suggested the patch.
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*/
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if ( setsockopt( so.sock, SOL_SOCKET, SO_KEEPALIVE, (SOCK_OPT_TYPE)&on, sizeof(on) ) != 0 ) {
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httplib_cry( DEBUG_LEVEL_ERROR, ctx, NULL, "%s: setsockopt(SOL_SOCKET SO_KEEPALIVE) failed: %s", __func__, httplib_error_string( ERRNO, error_string, ERROR_STRING_LEN ) );
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}
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/*
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* Disable TCP Nagle's algorithm. Normally TCP packets are coalesced
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* to effectively fill up the underlying IP packet payload and
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* reduce the overhead of sending lots of small buffers. However
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* this hurts the server's throughput (ie. operations per second)
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* when HTTP 1.1 persistent connections are used and the responses
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* are relatively small (eg. less than 1400 bytes).
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*/
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if ( ctx->tcp_nodelay && XX_httplib_set_tcp_nodelay( so.sock, 1 ) != 0 ) {
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httplib_cry( DEBUG_LEVEL_ERROR, ctx, NULL, "%s: setsockopt(IPPROTO_TCP TCP_NODELAY) failed: %s", __func__, httplib_error_string( ERRNO, error_string, ERROR_STRING_LEN ) );
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}
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if ( ctx->request_timeout > 0 ) XX_httplib_set_sock_timeout( so.sock, ctx->request_timeout );
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XX_httplib_produce_socket( ctx, &so );
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}
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} /* XX_httplib_accept_new_connection */
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