3 OCaml HTTP - do it yourself (fully OCaml) HTTP daemon
5 Copyright (C) <2002-2004> Stefano Zacchiroli <zack@cs.unibo.it>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
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19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 (** Main OCaml HTTP module.
23 Here you can find two set of functions:
24 - functions which let you start an HTTP Daemon (start* functions)
25 - facility functions which let you sent responses back to clients *)
27 (** send a CRLF sequence on the given output channel, this is mandatory after
28 the last header was sent and before start sending the response body *)
29 val send_CRLF: out_channel -> unit
31 (** send response status line, version is the http version used in response,
32 either code or status must be given (not both, not none) which represent the
33 HTTP response code, outchan is the output channel to which send status line *)
35 ?version:Http_types.version -> code:Http_types.status_code ->
39 (** like send_status_line but additionally will also send "Date" and "Server"
41 val send_basic_headers:
42 ?version: Http_types.version -> code:Http_types.status_code ->
46 (** send an HTTP header on outchan *)
47 val send_header: header: string -> value: string -> out_channel -> unit
49 (** as send_header, but for a list of pairs <header, value> *)
50 val send_headers: headers:(string * string) list -> out_channel -> unit
53 (** send a file through an out_channel, file can be passed as an in_channel
54 (if 'file' is given) or as a file name (if 'name' is given) *)
55 val send_file: ?name:string -> ?file:in_channel -> out_channel -> unit
57 (** send a file through an out_channel *)
58 val send_file: src:Http_types.file_source -> out_channel -> unit
60 (** high level response function, respond on outchan sending: basic headers
61 (including Content-Length computed using 'body' argument), headers probided
62 via 'headers' argument, body given via 'body' argument. Default response
63 status is 200, default response HTTP version is Http_common.http_version *)
65 ?body:string -> ?headers:(string * string) list ->
66 ?version:Http_types.version -> ?code:Http_types.status_code ->
70 (** send a 404 (not found) HTTP response *)
71 val respond_not_found:
72 url:string -> ?version: Http_types.version -> out_channel -> unit
74 (** send a 403 (forbidden) HTTP response *)
75 val respond_forbidden:
76 url:string -> ?version: Http_types.version -> out_channel -> unit
78 (** send a "redirection" class response, optional body argument contains data
79 that will be displayed in the body of the response, default response status is
80 301 (moved permanently), only redirection status are accepted by this
81 function, other values will raise Failure *)
83 location:string -> ?body:string ->
84 ?version: Http_types.version -> ?code:Http_types.status_code ->
88 (** respond with a 401 (Unauthorized) response asking for authentication
89 * against given realm (default is the server name) *)
90 val respond_unauthorized:
91 ?version: Http_types.version -> ?realm:string -> out_channel -> unit
93 (** send an "error" response (i.e. 400 <= status < 600), optional body
94 argument as per send_redirect, default response status is 400 (bad request),
95 only error status are accepted by this function, other values will
99 ?version: Http_types.version -> ?code:Http_types.status_code ->
103 (** tipical static pages http daemon behaviour, if requested url is a file,
104 return it, it it is a directory return a directory listing of it *)
106 fname:string -> ?version: Http_types.version -> out_channel -> unit
108 (** respond using a prebuilt Http_types.response object *)
109 val respond_with: Http_types.response -> out_channel -> unit
111 (** starts an HTTP daemon listening
112 * @param addr adress on which daemon will be listening, can be both a numeric
113 * address (e.g. "127.0.0.1") and an hostname (e.g. "localhost"). Default is
114 * the wildcard address "0.0.0.0"
115 * @param port TCP port on which the daemon will be listening. Default is the
117 * @param timeout timeout in seconds after which an incoming HTTP request will
118 * be terminated closing the corresponding TCP connection. Passing None will
119 * disable the timeout. Default is 5 minutes (300 seconds)
120 * @param mode requests handling mode, it can have three different values.
121 * `Single -> all requests will be handled by the same process,
122 * `Fork -> each request will be handled by a separate process
123 * `Thread -> each request will be handled by a separate thread
125 * @param root document root (i.e. directory to which ocaml http will chdir
126 * before starting handling requests). Default is current working directory
127 * @param callback function which will be called each time a correct HTTP
128 * request will be received. 1st callback argument is the path requested by
129 * the HTTP client; 2nd argument is a list of pairs <parameter, value>
130 * representing decoded query string; 3rd argument is an output channel
131 * connected with the client
134 ?addr: string -> ?port: int ->
135 ?timeout: int option -> ?mode: Http_types.daemon_mode -> ?root: string ->
136 (string -> (string * string) list -> out_channel -> unit) ->
139 (** identical to 'start' above but callback receive two arguments, the second
140 one is an out_channel as per 'start', but the secondo one is a Request.request
143 ?addr: string -> ?port: int ->
144 ?timeout: int option -> ?mode: Http_types.daemon_mode -> ?root: string ->
145 (Http_types.request -> out_channel -> unit) ->
148 (** Object oriented interface to HTTP daemons.
149 @param addr address on which daemon will listen for connections
150 @param port port which daemon will bind
151 see {! Http_types.daemon} *)
153 ?addr: string -> ?port: int ->
157 (** Trivial static pages HTTP daemon.
158 Daemons created using this module will serve directory indexes and files found
159 starting from the working directory *)
162 (** callback function, exposed if you like to use it as a basis to define
163 a more powerful daemon *)
164 val callback : string -> 'a -> out_channel -> unit
166 (** start the "trivial" HTTP daemon *)
167 val start : ?addr:string -> ?port:int -> unit -> unit