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haproxy/include/proto/proto_http.h

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[BIGMOVE] exploded the monolithic haproxy.c file into multiple files. The files are now stored under : - include/haproxy for the generic includes - include/types.h for the structures needed within prototypes - include/proto.h for function prototypes and inline functions - src/*.c for the C files Most include files are now covered by LGPL. A last move still needs to be done to put inline functions under GPL and not LGPL. Version has been set to 1.3.0 in the code but some control still needs to be done before releasing.
2006-06-26 00:48:02 +00:00
/*
include/proto/proto_http.h
This file contains HTTP protocol definitions.
[MAJOR] completed the HTTP response processing. Now the response is correctly processed in the backend first then in the frontend. It has followed intensive tests to catch regressions, and everything seems OK now, but the code is young anyway.
2007-03-18 15:22:39 +00:00
Copyright (C) 2000-2007 Willy Tarreau - w@1wt.eu
[BIGMOVE] exploded the monolithic haproxy.c file into multiple files. The files are now stored under : - include/haproxy for the generic includes - include/types.h for the structures needed within prototypes - include/proto.h for function prototypes and inline functions - src/*.c for the C files Most include files are now covered by LGPL. A last move still needs to be done to put inline functions under GPL and not LGPL. Version has been set to 1.3.0 in the code but some control still needs to be done before releasing.
2006-06-26 00:48:02 +00:00
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation, version 2.1
exclusively.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _PROTO_PROTO_HTTP_H
#define _PROTO_PROTO_HTTP_H
[CLEANUP] included common/version.h everywhere
2006-06-29 16:54:54 +00:00
#include <common/config.h>
[BIGMOVE] exploded the monolithic haproxy.c file into multiple files. The files are now stored under : - include/haproxy for the generic includes - include/types.h for the structures needed within prototypes - include/proto.h for function prototypes and inline functions - src/*.c for the C files Most include files are now covered by LGPL. A last move still needs to be done to put inline functions under GPL and not LGPL. Version has been set to 1.3.0 in the code but some control still needs to be done before releasing.
2006-06-26 00:48:02 +00:00
#include <types/proto_http.h>
#include <types/session.h>
#include <types/task.h>
[MAJOR] replaced the client-side HTTP parser with a new one The new parser uses an FSM to strictly follow RFC2616. Headers are indexed and parsed only once they're all available. That way, complex regexes make more sense. HTTP processing is now performed in several phases by calling multiple functions, making the code cleaner and easier to read. Note that req[i]pass does not work anymore because it would require that we mark a header to be ignored. What is really needed is to have the ability to add an exception to a matching (match xx except yy). Several bugs have been fixed in appsession during the conversion to the new FSM (method length and recovery on malloc errors). The code does build and work with the debug examples, but is not usable yet to connect to anything as it does not forward the requests yet.
2006-12-04 01:26:12 +00:00
/*
* some macros used for the request parsing.
* from RFC2616:
* CTL = <any US-ASCII control character (octets 0 - 31) and DEL (127)>
[MAJOR] huge rework of the HTTP request FSM The HTTP parser has been rewritten for better compliance to RFC2616. The same parser is now usable for both requests and responses, and it now supports HTTP/0.9 as well as multi-line headers. It has also been improved for speed ; a typicial HTTP request is parsed in about 2 microseconds on a 1 GHz processor. The monitor-uri check has been moved so that the requests are not logged. The httpclose option now tries to change as little as possible in the request, and does not affect the first header if it is already set to 'close'. HTTP/0.9 requests are converted to HTTP/1.0 before being forwarded. Headers and request transformations are now distinct. The headers list is updated after each insertion/removal/transformation. The request is re-parsed and checked after each transformation. It is not possible anymore to remove a request, and requests which lead to invalid request lines are now rejected.
2007-01-21 18:16:41 +00:00
* SEP = one of the 17 defined separators or SP or HT
* LWS = CR, LF, SP or HT
* SPHT = SP or HT. Use this macro and not a boolean expression for best speed.
* CRLF = CR or LF. Use this macro and not a boolean expression for best speed.
* token = any CHAR except CTL or SEP. Use this macro and not a boolean expression for best speed.
[MINOR] implement http_is_ver_token to fix response parsing This new character map improves accuracy when parsing HTTP version, which helps inspecting requests, and fixes response handling.
2007-03-04 17:13:58 +00:00
*
* added for ease of use:
* ver_token = 'H', 'P', 'T', '/', '.', and digits.
[MAJOR] replaced the client-side HTTP parser with a new one The new parser uses an FSM to strictly follow RFC2616. Headers are indexed and parsed only once they're all available. That way, complex regexes make more sense. HTTP processing is now performed in several phases by calling multiple functions, making the code cleaner and easier to read. Note that req[i]pass does not work anymore because it would require that we mark a header to be ignored. What is really needed is to have the ability to add an exception to a matching (match xx except yy). Several bugs have been fixed in appsession during the conversion to the new FSM (method length and recovery on malloc errors). The code does build and work with the debug examples, but is not usable yet to connect to anything as it does not forward the requests yet.
2006-12-04 01:26:12 +00:00
*/
[MAJOR] huge rework of the HTTP request FSM The HTTP parser has been rewritten for better compliance to RFC2616. The same parser is now usable for both requests and responses, and it now supports HTTP/0.9 as well as multi-line headers. It has also been improved for speed ; a typicial HTTP request is parsed in about 2 microseconds on a 1 GHz processor. The monitor-uri check has been moved so that the requests are not logged. The httpclose option now tries to change as little as possible in the request, and does not affect the first header if it is already set to 'close'. HTTP/0.9 requests are converted to HTTP/1.0 before being forwarded. Headers and request transformations are now distinct. The headers list is updated after each insertion/removal/transformation. The request is re-parsed and checked after each transformation. It is not possible anymore to remove a request, and requests which lead to invalid request lines are now rejected.
2007-01-21 18:16:41 +00:00
extern const char http_is_ctl[256];
extern const char http_is_sep[256];
extern const char http_is_lws[256];
extern const char http_is_spht[256];
extern const char http_is_crlf[256];
extern const char http_is_token[256];
[MINOR] implement http_is_ver_token to fix response parsing This new character map improves accuracy when parsing HTTP version, which helps inspecting requests, and fixes response handling.
2007-03-04 17:13:58 +00:00
extern const char http_is_ver_token[256];
[MAJOR] huge rework of the HTTP request FSM The HTTP parser has been rewritten for better compliance to RFC2616. The same parser is now usable for both requests and responses, and it now supports HTTP/0.9 as well as multi-line headers. It has also been improved for speed ; a typicial HTTP request is parsed in about 2 microseconds on a 1 GHz processor. The monitor-uri check has been moved so that the requests are not logged. The httpclose option now tries to change as little as possible in the request, and does not affect the first header if it is already set to 'close'. HTTP/0.9 requests are converted to HTTP/1.0 before being forwarded. Headers and request transformations are now distinct. The headers list is updated after each insertion/removal/transformation. The request is re-parsed and checked after each transformation. It is not possible anymore to remove a request, and requests which lead to invalid request lines are now rejected.
2007-01-21 18:16:41 +00:00
#define HTTP_IS_CTL(x) (http_is_ctl[(unsigned char)(x)])
#define HTTP_IS_SEP(x) (http_is_sep[(unsigned char)(x)])
#define HTTP_IS_LWS(x) (http_is_lws[(unsigned char)(x)])
#define HTTP_IS_SPHT(x) (http_is_spht[(unsigned char)(x)])
#define HTTP_IS_CRLF(x) (http_is_crlf[(unsigned char)(x)])
#define HTTP_IS_TOKEN(x) (http_is_token[(unsigned char)(x)])
[MINOR] implement http_is_ver_token to fix response parsing This new character map improves accuracy when parsing HTTP version, which helps inspecting requests, and fixes response handling.
2007-03-04 17:13:58 +00:00
#define HTTP_IS_VER_TOKEN(x) (http_is_ver_token[(unsigned char)(x)])
[BIGMOVE] exploded the monolithic haproxy.c file into multiple files. The files are now stored under : - include/haproxy for the generic includes - include/types.h for the structures needed within prototypes - include/proto.h for function prototypes and inline functions - src/*.c for the C files Most include files are now covered by LGPL. A last move still needs to be done to put inline functions under GPL and not LGPL. Version has been set to 1.3.0 in the code but some control still needs to be done before releasing.
2006-06-26 00:48:02 +00:00
int event_accept(int fd);
[MAJOR] replaced all timeouts with struct timeval The timeout functions were difficult to manipulate because they were rounding results to the millisecond. Thus, it was difficult to compare and to check what expired and what did not. Also, the comparison functions were heavy with multiplies and divides by 1000. Now, all timeouts are stored in timevals, reducing the number of operations for updates and leading to cleaner and more efficient code.
2007-05-12 20:35:00 +00:00
void process_session(struct task *t, struct timeval *next);
[BIGMOVE] exploded the monolithic haproxy.c file into multiple files. The files are now stored under : - include/haproxy for the generic includes - include/types.h for the structures needed within prototypes - include/proto.h for function prototypes and inline functions - src/*.c for the C files Most include files are now covered by LGPL. A last move still needs to be done to put inline functions under GPL and not LGPL. Version has been set to 1.3.0 in the code but some control still needs to be done before releasing.
2006-06-26 00:48:02 +00:00
int process_cli(struct session *t);
int process_srv(struct session *t);
[MINOR] store HTTP error messages into a chunk array HTTP error messages were all specific cases handled by an IF. Now they are all in an array so that it will be easier to add new ones. Also, the return functions now use chunks as inputs so that it should be easier to provide alternative return messages if needed.
2006-12-23 19:51:41 +00:00
void client_retnclose(struct session *s, const struct chunk *msg);
void client_return(struct session *s, const struct chunk *msg);
[BIGMOVE] exploded the monolithic haproxy.c file into multiple files. The files are now stored under : - include/haproxy for the generic includes - include/types.h for the structures needed within prototypes - include/proto.h for function prototypes and inline functions - src/*.c for the C files Most include files are now covered by LGPL. A last move still needs to be done to put inline functions under GPL and not LGPL. Version has been set to 1.3.0 in the code but some control still needs to be done before releasing.
2006-06-26 00:48:02 +00:00
void srv_close_with_err(struct session *t, int err, int finst,
[MINOR] store HTTP error messages into a chunk array HTTP error messages were all specific cases handled by an IF. Now they are all in an array so that it will be easier to add new ones. Also, the return functions now use chunks as inputs so that it should be easier to provide alternative return messages if needed.
2006-12-23 19:51:41 +00:00
int status, const struct chunk *msg);
[BIGMOVE] exploded the monolithic haproxy.c file into multiple files. The files are now stored under : - include/haproxy for the generic includes - include/types.h for the structures needed within prototypes - include/proto.h for function prototypes and inline functions - src/*.c for the C files Most include files are now covered by LGPL. A last move still needs to be done to put inline functions under GPL and not LGPL. Version has been set to 1.3.0 in the code but some control still needs to be done before releasing.
2006-06-26 00:48:02 +00:00
int produce_content(struct session *s);
[MAJOR] udpated the stats page to clearly distinguish FEs and BEs The stats page could not tell the difference between a FE and a BE. It has been revamped to indicate all relevant information. The font is also slightly smaller in order for all the info to fit into small screens. The data output path has been greatly simplified to use string chunks.
2007-01-01 20:38:07 +00:00
int produce_content_stats(struct session *s);
int produce_content_stats_proxy(struct session *s, struct proxy *px);
[MAJOR] replaced the client-side HTTP parser with a new one The new parser uses an FSM to strictly follow RFC2616. Headers are indexed and parsed only once they're all available. That way, complex regexes make more sense. HTTP processing is now performed in several phases by calling multiple functions, making the code cleaner and easier to read. Note that req[i]pass does not work anymore because it would require that we mark a header to be ignored. What is really needed is to have the ability to add an exception to a matching (match xx except yy). Several bugs have been fixed in appsession during the conversion to the new FSM (method length and recovery on malloc errors). The code does build and work with the debug examples, but is not usable yet to connect to anything as it does not forward the requests yet.
2006-12-04 01:26:12 +00:00
void debug_hdr(const char *dir, struct session *t, const char *start, const char *end);
[MAJOR] huge rework of the HTTP request FSM The HTTP parser has been rewritten for better compliance to RFC2616. The same parser is now usable for both requests and responses, and it now supports HTTP/0.9 as well as multi-line headers. It has also been improved for speed ; a typicial HTTP request is parsed in about 2 microseconds on a 1 GHz processor. The monitor-uri check has been moved so that the requests are not logged. The httpclose option now tries to change as little as possible in the request, and does not affect the first header if it is already set to 'close'. HTTP/0.9 requests are converted to HTTP/1.0 before being forwarded. Headers and request transformations are now distinct. The headers list is updated after each insertion/removal/transformation. The request is re-parsed and checked after each transformation. It is not possible anymore to remove a request, and requests which lead to invalid request lines are now rejected.
2007-01-21 18:16:41 +00:00
void get_srv_from_appsession(struct session *t, const char *begin, int len);
int apply_filter_to_req_headers(struct session *t, struct buffer *req, struct hdr_exp *exp);
int apply_filter_to_req_line(struct session *t, struct buffer *req, struct hdr_exp *exp);
int apply_filters_to_request(struct session *t, struct buffer *req, struct hdr_exp *exp);
[MAJOR] completed the HTTP response processing. Now the response is correctly processed in the backend first then in the frontend. It has followed intensive tests to catch regressions, and everything seems OK now, but the code is young anyway.
2007-03-18 15:22:39 +00:00
int apply_filters_to_response(struct session *t, struct buffer *rtr, struct hdr_exp *exp);
[MAJOR] replaced the client-side HTTP parser with a new one The new parser uses an FSM to strictly follow RFC2616. Headers are indexed and parsed only once they're all available. That way, complex regexes make more sense. HTTP processing is now performed in several phases by calling multiple functions, making the code cleaner and easier to read. Note that req[i]pass does not work anymore because it would require that we mark a header to be ignored. What is really needed is to have the ability to add an exception to a matching (match xx except yy). Several bugs have been fixed in appsession during the conversion to the new FSM (method length and recovery on malloc errors). The code does build and work with the debug examples, but is not usable yet to connect to anything as it does not forward the requests yet.
2006-12-04 01:26:12 +00:00
void manage_client_side_cookies(struct session *t, struct buffer *req);
[MAJOR] completed the HTTP response processing. Now the response is correctly processed in the backend first then in the frontend. It has followed intensive tests to catch regressions, and everything seems OK now, but the code is young anyway.
2007-03-18 15:22:39 +00:00
void manage_server_side_cookies(struct session *t, struct buffer *rtr);
void check_response_for_cacheability(struct session *t, struct buffer *rtr);
[MEDIUM] moved uri_auth check to a separate function The check of uri_auth is now in a separate function which is checked after every backend switch, so that it will be possible to have an uri_auth for the frontend and another one for the backend.
2006-12-17 13:52:38 +00:00
int stats_check_uri_auth(struct session *t, struct proxy *backend);
[MEDIUM] errorloc now checked first from backend then from frontend It is now possible to define an errorloc in the backend as well as in the frontend. The backend's will be used first, and if undefined, then the frontend's will be used instead. If none is used, then the original error messages will be used.
2006-12-24 16:47:20 +00:00
void init_proto_http();
[BIGMOVE] exploded the monolithic haproxy.c file into multiple files. The files are now stored under : - include/haproxy for the generic includes - include/types.h for the structures needed within prototypes - include/proto.h for function prototypes and inline functions - src/*.c for the C files Most include files are now covered by LGPL. A last move still needs to be done to put inline functions under GPL and not LGPL. Version has been set to 1.3.0 in the code but some control still needs to be done before releasing.
2006-06-26 00:48:02 +00:00
[MINOR] move some flags from session.h to proto_http.h Some session flags were clearly related to HTTP transactions. A new 'flags' field has been added to http_txn, and the associated flags moved to proto_http.h.
2007-03-18 17:34:41 +00:00
/* used to clear the cookie flags when a transaction failed on the server
* designed by the cookie. We clear the CK_VALID bit and set the CK_DOWN.
*/
static inline void http_flush_cookie_flags(struct http_txn *txn)
{
if ((txn->flags & TX_CK_MASK) == TX_CK_VALID)
txn->flags ^= (TX_CK_VALID | TX_CK_DOWN);
}
[BIGMOVE] exploded the monolithic haproxy.c file into multiple files. The files are now stored under : - include/haproxy for the generic includes - include/types.h for the structures needed within prototypes - include/proto.h for function prototypes and inline functions - src/*.c for the C files Most include files are now covered by LGPL. A last move still needs to be done to put inline functions under GPL and not LGPL. Version has been set to 1.3.0 in the code but some control still needs to be done before releasing.
2006-06-26 00:48:02 +00:00
#endif /* _PROTO_PROTO_HTTP_H */
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* End:
*/