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582311d7b4
Also adds apps/include/http_server.h. This is used so far by apps/ocsp.c and is going to be used for apps/cmp.c and will be helpful also for any future app acting as HTTP server. Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Viktor Dukhovni <viktor@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11736)
103 lines
3.3 KiB
C
103 lines
3.3 KiB
C
/*
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* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef OSSL_HTTP_SERVER_H
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# define OSSL_HTTP_SERVER_H
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# include "apps.h"
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# ifndef HAVE_FORK
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# if defined(OPENSSL_SYS_VMS) || defined(OPENSSL_SYS_WINDOWS)
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# define HAVE_FORK 0
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# else
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# define HAVE_FORK 1
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# endif
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# endif
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# if HAVE_FORK
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# undef NO_FORK
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# else
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# define NO_FORK
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# endif
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# if !defined(NO_FORK) && !defined(OPENSSL_NO_SOCK) \
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&& !defined(OPENSSL_NO_POSIX_IO)
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# define HTTP_DAEMON
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# include <sys/types.h>
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# include <sys/wait.h>
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# include <syslog.h>
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# include <signal.h>
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# define MAXERRLEN 1000 /* limit error text sent to syslog to 1000 bytes */
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# else
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# undef LOG_INFO
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# undef LOG_WARNING
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# undef LOG_ERR
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# define LOG_INFO 0
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# define LOG_WARNING 1
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# define LOG_ERR 2
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# endif
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/*-
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* Log a message to syslog if multi-threaded HTTP_DAEMON, else to bio_err
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* prog: the name of the current app
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* level: the severity of the message, e.g., LOG_ERR
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* fmt: message with potential extra parameters like with printf()
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* returns nothing
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*/
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void log_message(const char *prog, int level, const char *fmt, ...);
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# ifndef OPENSSL_NO_SOCK
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/*-
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* Initialize an HTTP server by setting up its listening BIO
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* prog: the name of the current app
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* port: the port to listen on
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* returns a BIO for accepting requests, NULL on error
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*/
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BIO *http_server_init_bio(const char *prog, const char *port);
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/*-
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* Accept an ASN.1-formatted HTTP request
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* it: the expected request ASN.1 type
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* preq: pointer to variable where to place the parsed request
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* pcbio: pointer to variable where to place the BIO for sending the response to
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* acbio: the listening bio (typically as returned by http_server_init_bio())
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* prog: the name of the current app
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* accept_get: wheter to accept GET requests (in addition to POST requests)
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* timeout: connection timeout (in seconds), or 0 for none/infinite
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* returns 0 in case caller should retry, then *preq == *pcbio == NULL
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* returns -1 on fatal error; also in this case *preq == *pcbio == NULL
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* returns 1 otherwise. In this case it is guaranteed that *pcbio != NULL
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* while *preq == NULL if and only if request is invalid
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*/
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int http_server_get_asn1_req(const ASN1_ITEM *it, ASN1_VALUE **preq,
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BIO **pcbio, BIO *acbio,
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const char *prog, int accept_get, int timeout);
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/*-
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* Send an ASN.1-formatted HTTP response
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* cbio: destination BIO (typically as returned by http_server_get_asn1_req())
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* note: cbio should not do an encoding that changes the output length
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* content_type: string identifying the type of the response
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* it: the response ASN.1 type
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* valit: the response ASN.1 type
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* resp: the response to send
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* returns 1 on success, 0 on failure
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*/
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int http_server_send_asn1_resp(BIO *cbio, const char *content_type,
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const ASN1_ITEM *it, const ASN1_VALUE *resp);
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# endif
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# ifdef HTTP_DAEMON
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extern int multi;
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extern int acfd;
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void socket_timeout(int signum);
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void spawn_loop(const char *prog);
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# endif
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#endif
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