/* * include/proto/proto_http.h * This file contains HTTP protocol definitions. * * Copyright (C) 2000-2011 Willy Tarreau - w@1wt.eu * * 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 #include #include #include #include /* * some macros used for the request parsing. * from RFC2616: * CTL = * 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. * * added for ease of use: * ver_token = 'H', 'P', 'T', '/', '.', and digits. */ 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]; extern const char http_is_ver_token[256]; extern const int http_err_codes[HTTP_ERR_SIZE]; extern struct chunk http_err_chunks[HTTP_ERR_SIZE]; extern const char *HTTP_302; extern const char *HTTP_303; extern char *get_http_auth_buff; #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)]) #define HTTP_IS_VER_TOKEN(x) (http_is_ver_token[(unsigned char)(x)]) int event_accept(int fd); int process_cli(struct session *t); int process_srv_data(struct session *t); int process_srv_conn(struct session *t); int http_wait_for_request(struct session *s, struct channel *req, int an_bit); int http_process_req_common(struct session *s, struct channel *req, int an_bit, struct proxy *px); int http_process_request(struct session *t, struct channel *req, int an_bit); int http_process_tarpit(struct session *s, struct channel *req, int an_bit); int http_process_request_body(struct session *s, struct channel *req, int an_bit); int http_send_name_header(struct http_txn *txn, struct proxy* be, const char* svr_name); int http_wait_for_response(struct session *s, struct channel *rep, int an_bit); int http_process_res_common(struct session *t, struct channel *rep, int an_bit, struct proxy *px); int http_request_forward_body(struct session *s, struct channel *req, int an_bit); int http_response_forward_body(struct session *s, struct channel *res, int an_bit); void debug_hdr(const char *dir, struct session *t, const char *start, const char *end); void get_srv_from_appsession(struct session *t, const char *begin, int len); int apply_filter_to_req_headers(struct session *t, struct channel *req, struct hdr_exp *exp); int apply_filter_to_req_line(struct session *t, struct channel *req, struct hdr_exp *exp); int apply_filters_to_request(struct session *s, struct channel *req, struct proxy *px); int apply_filters_to_response(struct session *t, struct channel *rtr, struct proxy *px); void manage_client_side_appsession(struct session *t, const char *buf, int len); void manage_client_side_cookies(struct session *t, struct channel *req); void manage_server_side_cookies(struct session *t, struct channel *rtr); void check_response_for_cacheability(struct session *t, struct channel *rtr); int stats_check_uri(struct stream_interface *si, struct http_txn *txn, struct proxy *backend); void init_proto_http(); int http_find_header2(const char *name, int len, char *sol, struct hdr_idx *idx, struct hdr_ctx *ctx); void http_sess_log(struct session *s); void http_perform_server_redirect(struct session *s, struct stream_interface *si); void http_return_srv_error(struct session *s, struct stream_interface *si); void http_capture_bad_message(struct error_snapshot *es, struct session *s, struct http_msg *msg, int state, struct proxy *other_end); unsigned int http_get_hdr(const struct http_msg *msg, const char *hname, int hlen, struct hdr_idx *idx, int occ, struct hdr_ctx *ctx, char **vptr, int *vlen); void http_init_txn(struct session *s); void http_end_txn(struct session *s); void http_reset_txn(struct session *s); struct http_req_rule *parse_http_req_cond(const char **args, const char *file, int linenum, struct proxy *proxy); void free_http_req_rules(struct list *r); struct chunk *http_error_message(struct session *s, int msgnum); struct redirect_rule *http_parse_redirect_rule(const char *file, int line, struct proxy *curproxy, const char **args, char **errmsg); /* to be used when contents change in an HTTP message */ #define http_msg_move_end(msg, bytes) do { \ unsigned int _bytes = (bytes); \ (msg)->next += (_bytes); \ (msg)->sov += (_bytes); \ (msg)->eoh += (_bytes); \ } while (0) /* for debugging, reports the HTTP message state name */ static inline const char *http_msg_state_str(int msg_state) { switch (msg_state) { case HTTP_MSG_RQBEFORE: return "MSG_RQBEFORE"; case HTTP_MSG_RQBEFORE_CR: return "MSG_RQBEFORE_CR"; case HTTP_MSG_RQMETH: return "MSG_RQMETH"; case HTTP_MSG_RQMETH_SP: return "MSG_RQMETH_SP"; case HTTP_MSG_RQURI: return "MSG_RQURI"; case HTTP_MSG_RQURI_SP: return "MSG_RQURI_SP"; case HTTP_MSG_RQVER: return "MSG_RQVER"; case HTTP_MSG_RQLINE_END: return "MSG_RQLINE_END"; case HTTP_MSG_RPBEFORE: return "MSG_RPBEFORE"; case HTTP_MSG_RPBEFORE_CR: return "MSG_RPBEFORE_CR"; case HTTP_MSG_RPVER: return "MSG_RPVER"; case HTTP_MSG_RPVER_SP: return "MSG_RPVER_SP"; case HTTP_MSG_RPCODE: return "MSG_RPCODE"; case HTTP_MSG_RPCODE_SP: return "MSG_RPCODE_SP"; case HTTP_MSG_RPREASON: return "MSG_RPREASON"; case HTTP_MSG_RPLINE_END: return "MSG_RPLINE_END"; case HTTP_MSG_HDR_FIRST: return "MSG_HDR_FIRST"; case HTTP_MSG_HDR_NAME: return "MSG_HDR_NAME"; case HTTP_MSG_HDR_COL: return "MSG_HDR_COL"; case HTTP_MSG_HDR_L1_SP: return "MSG_HDR_L1_SP"; case HTTP_MSG_HDR_L1_LF: return "MSG_HDR_L1_LF"; case HTTP_MSG_HDR_L1_LWS: return "MSG_HDR_L1_LWS"; case HTTP_MSG_HDR_VAL: return "MSG_HDR_VAL"; case HTTP_MSG_HDR_L2_LF: return "MSG_HDR_L2_LF"; case HTTP_MSG_HDR_L2_LWS: return "MSG_HDR_L2_LWS"; case HTTP_MSG_LAST_LF: return "MSG_LAST_LF"; case HTTP_MSG_ERROR: return "MSG_ERROR"; case HTTP_MSG_BODY: return "MSG_BODY"; case HTTP_MSG_100_SENT: return "MSG_100_SENT"; case HTTP_MSG_CHUNK_SIZE: return "MSG_CHUNK_SIZE"; case HTTP_MSG_DATA: return "MSG_DATA"; case HTTP_MSG_CHUNK_CRLF: return "MSG_CHUNK_CRLF"; case HTTP_MSG_TRAILERS: return "MSG_TRAILERS"; case HTTP_MSG_DONE: return "MSG_DONE"; case HTTP_MSG_CLOSING: return "MSG_CLOSING"; case HTTP_MSG_CLOSED: return "MSG_CLOSED"; case HTTP_MSG_TUNNEL: return "MSG_TUNNEL"; default: return "MSG_??????"; } } #endif /* _PROTO_PROTO_HTTP_H */ /* * Local variables: * c-indent-level: 8 * c-basic-offset: 8 * End: */