Edit File: swoole_http_parser.h
/* Copyright 2009,2010 Ryan Dahl <ry@tinyclouds.org> * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to * deal in the Software without restriction, including without limitation the * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or * sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. */ /* modified by Moriyoshi Koizumi <moriyoshi@php.net> to make it fit to PHP source tree. */ #ifndef swoole_http_parser_h #define swoole_http_parser_h #ifdef __cplusplus extern "C" { #endif #include <sys/types.h> #include <stdint.h> /* Compile with -DPHP_HTTP_PARSER_STRICT=0 to make less checks, but run * faster */ #ifndef PHP_HTTP_PARSER_STRICT # define PHP_HTTP_PARSER_STRICT 1 #else # define PHP_HTTP_PARSER_STRICT 0 #endif /* Maximium header size allowed */ #define PHP_HTTP_MAX_HEADER_SIZE (80*1024) typedef struct swoole_http_parser swoole_http_parser; typedef struct swoole_http_parser_settings swoole_http_parser_settings; /* Callbacks should return non-zero to indicate an error. The parser will * then halt execution. * * The one exception is on_headers_complete. In a PHP_HTTP_RESPONSE parser * returning '1' from on_headers_complete will tell the parser that it * should not expect a body. This is used when receiving a response to a * HEAD request which may contain 'Content-Length' or 'Transfer-Encoding: * chunked' headers that indicate the presence of a body. * * http_data_cb does not return data chunks. It will be call arbitrarally * many times for each string. E.G. you might get 10 callbacks for "on_path" * each providing just a few characters more data. */ typedef int (*swoole_http_data_cb) (swoole_http_parser*, const char *at, size_t length); typedef int (*swoole_http_cb) (swoole_http_parser*); /* Request Methods */ enum swoole_http_method { PHP_HTTP_DELETE = 0 , PHP_HTTP_GET , PHP_HTTP_HEAD , PHP_HTTP_POST , PHP_HTTP_PUT , PHP_HTTP_PATCH /* pathological */ , PHP_HTTP_CONNECT , PHP_HTTP_OPTIONS , PHP_HTTP_TRACE /* webdav */ , PHP_HTTP_COPY , PHP_HTTP_LOCK , PHP_HTTP_MKCOL , PHP_HTTP_MOVE , PHP_HTTP_MKCALENDAR , PHP_HTTP_PROPFIND , PHP_HTTP_PROPPATCH , PHP_HTTP_SEARCH , PHP_HTTP_UNLOCK /* subversion */ , PHP_HTTP_REPORT , PHP_HTTP_MKACTIVITY , PHP_HTTP_CHECKOUT , PHP_HTTP_MERGE /* upnp */ , PHP_HTTP_MSEARCH , PHP_HTTP_NOTIFY , PHP_HTTP_SUBSCRIBE , PHP_HTTP_UNSUBSCRIBE /* proxy */ , PHP_HTTP_PURGE /* unknown, not implemented */ , PHP_HTTP_NOT_IMPLEMENTED }; enum swoole_http_parser_type { PHP_HTTP_REQUEST, PHP_HTTP_RESPONSE, PHP_HTTP_BOTH }; enum state { s_dead = 1 /* important that this is > 0 */ , s_start_req_or_res , s_res_or_resp_H , s_start_res , s_res_H , s_res_HT , s_res_HTT , s_res_HTTP , s_res_first_http_major , s_res_http_major , s_res_first_http_minor , s_res_http_minor , s_res_first_status_code , s_res_status_code , s_res_status , s_res_line_almost_done , s_start_req , s_req_method , s_req_spaces_before_url , s_req_schema , s_req_schema_slash , s_req_schema_slash_slash , s_req_host , s_req_port , s_req_path , s_req_query_string_start , s_req_query_string , s_req_fragment_start , s_req_fragment , s_req_http_start , s_req_http_H , s_req_http_HT , s_req_http_HTT , s_req_http_HTTP , s_req_first_http_major , s_req_http_major , s_req_first_http_minor , s_req_http_minor , s_req_line_almost_done , s_header_field_start , s_header_field , s_header_value_start , s_header_value , s_header_almost_done , s_headers_almost_done /* Important: 's_headers_almost_done' must be the last 'header' state. All * states beyond this must be 'body' states. It is used for overflow * checking. See the PARSING_HEADER() macro. */ , s_chunk_size_start , s_chunk_size , s_chunk_size_almost_done , s_chunk_parameters , s_chunk_data , s_chunk_data_almost_done , s_chunk_data_done , s_body_identity , s_body_identity_eof }; struct swoole_http_parser { /** PRIVATE **/ unsigned char type : 2; unsigned char flags : 6; unsigned char state; unsigned char header_state; unsigned char index; uint32_t nread; ssize_t content_length; /** READ-ONLY **/ unsigned short http_major; unsigned short http_minor; unsigned short status_code; /* responses only */ unsigned char method; /* requests only */ /* 1 = Upgrade header was present and the parser has exited because of that. * 0 = No upgrade header present. * Should be checked when http_parser_execute() returns in addition to * error checking. */ char upgrade; /** PUBLIC **/ void *data; /* A pointer to get hook to the "connection" or "socket" object */ }; struct swoole_http_parser_settings { swoole_http_cb on_message_begin; swoole_http_data_cb on_path; swoole_http_data_cb on_query_string; swoole_http_data_cb on_url; swoole_http_data_cb on_fragment; swoole_http_data_cb on_header_field; swoole_http_data_cb on_header_value; swoole_http_cb on_headers_complete; swoole_http_data_cb on_body; swoole_http_cb on_message_complete; }; void swoole_http_parser_init(swoole_http_parser *parser, enum swoole_http_parser_type type); size_t swoole_http_parser_execute(swoole_http_parser *parser, const swoole_http_parser_settings *settings, const char *data, size_t len); /* If swoole_http_should_keep_alive() in the on_headers_complete or * on_message_complete callback returns true, then this will be should be * the last message on the connection. * If you are the server, respond with the "Connection: close" header. * If you are the client, close the connection. */ int swoole_http_should_keep_alive(swoole_http_parser *parser); /* Returns a string version of the HTTP method. */ const char *swoole_http_method_str(enum swoole_http_method); #ifdef __cplusplus } #endif #endif