110 lines
3.9 KiB
C
110 lines
3.9 KiB
C
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/*
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* Copyright 1995-2022 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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# include "log.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 <signal.h>
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# define MAXERRLEN 1000 /* limit error text sent to syslog to 1000 bytes */
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# endif
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# ifndef OPENSSL_NO_SOCK
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/*-
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* Initialize an HTTP server, 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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* verbosity: the level of verbosity to use, or -1 for default: LOG_INFO
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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(const char *prog, const char *port, int verbosity);
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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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* ppath: pointer to variable where to place the request path, or NULL
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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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* found_keep_alive: for returning flag if client requests persistent connection
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* prog: the name of the current app, for diagnostics only
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* accept_get: whether 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 == *ppath == *pcbio == NULL
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* returns -1 on fatal error; also then holds *preq == *ppath == *pcbio == NULL
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* returns 1 otherwise. In this case it is guaranteed that *pcbio != NULL while
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* *ppath == NULL and *preq == NULL if and only if the request is invalid,
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* On return value 1 the caller is responsible for sending an HTTP response,
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* using http_server_send_asn1_resp() or http_server_send_status().
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* The caller must free any non-NULL *preq, *ppath, and *pcbio pointers.
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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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char **ppath, BIO **pcbio, BIO *acbio,
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int *found_keep_alive,
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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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* prog: the name of the current app, for diagnostics only
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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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* keep_alive: grant persistent connection
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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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* 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(const char *prog, BIO *cbio, int keep_alive,
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const char *content_type,
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const ASN1_ITEM *it, const ASN1_VALUE *resp);
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/*-
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* Send a trivial HTTP response, typically to report an error or OK
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* prog: the name of the current app, for diagnostics only
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* cbio: destination BIO (typically as returned by http_server_get_asn1_req())
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* status: the status code to send
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* reason: the corresponding human-readable string
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* returns 1 on success, 0 on failure
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*/
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int http_server_send_status(const char *prog, BIO *cbio,
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int status, const char *reason);
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# endif
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# ifdef HTTP_DAEMON
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extern int n_responders;
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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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