883b7aa7f0
* Recogniton of HTTP header field 'X-Real-IP' was added. Value
is used in LOGIN service with peer name as remote host identifier.
This was we are able to see real IP in login related log files
such as /var/log/auth.log, etc...
* Real IP, peer name and URL are also passed to launched service
as environment variables (SHELLINABOX_PEERNAME, SHELLINABOX_REALIP
and SHELLINABOX_URL). This can be used by custom user service shell
scripts or programs.
* Real IP can also be passed to custom user service as command line
parameter ${realip}.
163 lines
6.8 KiB
C
163 lines
6.8 KiB
C
// httpconnection.h -- Manage state machine for HTTP connections
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// Copyright (C) 2008-2010 Markus Gutschke <markus@shellinabox.com>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2 as
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// published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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// In addition to these license terms, the author grants the following
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// additional rights:
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//
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// If you modify this program, or any covered work, by linking or
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// combining it with the OpenSSL project's OpenSSL library (or a
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// modified version of that library), containing parts covered by the
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// terms of the OpenSSL or SSLeay licenses, the author
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// grants you additional permission to convey the resulting work.
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// Corresponding Source for a non-source form of such a combination
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// shall include the source code for the parts of OpenSSL used as well
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// as that of the covered work.
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//
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// You may at your option choose to remove this additional permission from
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// the work, or from any part of it.
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//
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// It is possible to build this program in a way that it loads OpenSSL
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// libraries at run-time. If doing so, the following notices are required
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// by the OpenSSL and SSLeay licenses:
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//
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// This product includes software developed by the OpenSSL Project
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// for use in the OpenSSL Toolkit. (http://www.openssl.org/)
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//
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// This product includes cryptographic software written by Eric Young
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// (eay@cryptsoft.com)
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//
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//
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// The most up-to-date version of this program is always available from
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// http://shellinabox.com
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#ifndef HTTP_CONNECTION__
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#define HTTP_CONNECTION__
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#include <time.h>
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#include "libhttp/hashmap.h"
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#include "libhttp/trie.h"
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#include "libhttp/server.h"
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#include "libhttp/http.h"
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#include "libhttp/ssl.h"
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#define HTTP_DONE 0
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#define HTTP_ERROR 1
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#define HTTP_READ_MORE 2
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#define HTTP_SUSPEND 3
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#define HTTP_PARTIAL_REPLY 4
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#define WS_UNDEFINED 0x1000
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#define WS_START_OF_FRAME 0x0100
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#define WS_END_OF_FRAME 0x0200
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#define NO_MSG "\001"
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struct HttpConnection {
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struct Server *server;
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struct ServerConnection *connection;
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int fd;
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int port;
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int closed;
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int isSuspended;
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int isPartialReply;
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int done;
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enum { SNIFFING_SSL, COMMAND, HEADERS, PAYLOAD, DISCARD_PAYLOAD,
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WEBSOCKET } state;
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char *peerName;
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int peerPort;
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char *url;
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char *method;
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char *path;
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char *matchedPath;
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char *pathInfo;
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char *query;
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char *version;
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struct HashMap header;
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int headerLength;
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char *key;
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char *partial;
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int partialLength;
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char *msg;
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int msgLength;
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int msgOffset;
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int totalWritten;
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int expecting;
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int websocketType;
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int (*callback)(struct HttpConnection *, void *,
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const char *,int);
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int (*websocketHandler)(struct HttpConnection *, void *,
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int, const char *, int);
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void *arg;
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void *private;
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int code;
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struct SSLSupport *ssl;
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SSL *sslHndl;
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int lastError;
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};
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struct HttpHandler {
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int (*handler)(struct HttpConnection *, void *);
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int (*streamingHandler)(struct HttpConnection *, void *, const char *, int);
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int (*websocketHandler)(struct HttpConnection *, void *, int,
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const char *, int);
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void *arg, *streamingArg;
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};
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struct HttpConnection *newHttpConnection(struct Server *server, int fd,
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int port, struct SSLSupport *ssl,
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int numericHosts);
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void initHttpConnection(struct HttpConnection *http, struct Server *server,
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int fd, int port, struct SSLSupport *ssl,
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int numericHosts);
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void destroyHttpConnection(struct HttpConnection *http);
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void deleteHttpConnection(struct HttpConnection *http);
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void httpTransfer(struct HttpConnection *http, char *msg, int len);
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void httpTransferPartialReply(struct HttpConnection *http, char *msg, int len);
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int httpHandleConnection(struct ServerConnection *connection, void *http_,
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short *events, short revents);
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void httpSetCallback(struct HttpConnection *http,
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int (*callback)(struct HttpConnection *, void *,
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const char *, int), void *arg);
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void *httpGetPrivate(struct HttpConnection *http);
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void *httpSetPrivate(struct HttpConnection *http, void *private);
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void httpSendReply(struct HttpConnection *http, int code,
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const char *msg, const char *fmt, ...)
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__attribute__((format(printf, 4, 5)));
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void httpSendWebSocketTextMsg(struct HttpConnection *http, int type,
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const char *fmt, ...)
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__attribute__((format(printf, 3, 4)));
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void httpSendWebSocketBinaryMsg(struct HttpConnection *http, int type,
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const void *buf, int len);
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void httpExitLoop(struct HttpConnection *http, int exitAll);
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struct Server *httpGetServer(const struct HttpConnection *http);
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struct ServerConnection *httpGetServerConnection(const struct HttpConnection*);
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int httpGetFd(const HttpConnection *http);
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const char *httpGetPeerName(const struct HttpConnection *http);
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const char *httpGetRealIP(const struct HttpConnection *http);
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const char *httpGetMethod(const struct HttpConnection *http);
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const char *httpGetProtocol(const struct HttpConnection *http);
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const char *httpGetHost(const struct HttpConnection *http);
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int httpGetPort(const struct HttpConnection *http);
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const char *httpGetPath(const struct HttpConnection *http);
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const char *httpGetPathInfo(const struct HttpConnection *http);
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const char *httpGetQuery(const struct HttpConnection *http);
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const char *httpGetURL(const struct HttpConnection *http);
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const char *httpGetVersion(const struct HttpConnection *http);
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const struct HashMap *httpGetHeaders(const struct HttpConnection *http);
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#endif /* HTTP_CONNECTION__ */
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