3 OCaml HTTP - do it yourself (fully OCaml) HTTP daemon
5 Copyright (C) <2002> 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.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
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: int -> ?status: Http_types.status ->
39 (** like send_status_line but additionally will also send "Date" and "Server"
41 val send_basic_headers:
42 ?version: Http_types.version -> ?code: int -> ?status: Http_types.status ->
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:int -> ?status:Http_types.status ->
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
80 302 (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 ->
85 ?code: int -> ?status: Http_types.redirection_status ->
89 (** send an "error" response (i.e. 400 <= status < 600), optional body
90 argument as per send_redirect, default response status is 400 (bad request),
91 only error status are accepted by this function, other values will
95 ?version: Http_types.version ->
96 ?code: int -> ?status: Http_types.error_status ->
100 (** tipical static pages http daemon behaviour, if requested url is a file,
101 return it, it it is a directory return a directory listing of it *)
103 fname:string -> ?version: Http_types.version -> out_channel -> unit
105 (** respond using a prebuilt Http_types.response object *)
106 val respond_with: Http_types.response -> out_channel -> unit
108 (** create an HTTP daemon listening on 'addr':'port' (defaults are
109 addr:"0.0.0.0" and port:80), callback is the user supplied function which
110 receive as a first parameter the path required by the the HTTP client as a
111 string, and a list of pair <parameter, value> representing parameters passed
112 via GET. The last argument of the callback is an output_channel connected to
113 the HTTP client to which the user can write directly. 'timeout' parameter sets
114 a timeout for each request processed by the daemon, if it's set to None,
115 daemon waits forever for completed requests (use with care!), default is 5
116 minute. 'mode' parameter has 3 possible values: `Single means that all request
117 are handled by the same process, `Fork means that each request is handled by a
118 separate process, `Thread means that each request is handled by a separate
119 thread, default is `Fork; 'root' (mnemonic "document root") is the directory
120 where the daemon chdir before starting up, default is current working
123 ?addr: string -> ?port: int ->
124 ?timeout: int option -> ?mode: Http_types.daemon_mode -> ?root: string ->
125 (string -> (string * string) list -> out_channel -> unit) ->
128 (** identical to 'start' above but callback receive two arguments, the second
129 one is an out_channel as per 'start', but the secondo one is a Request.request
132 ?addr: string -> ?port: int ->
133 ?timeout: int option -> ?mode: Http_types.daemon_mode -> ?root: string ->
134 (Http_types.request -> out_channel -> unit) ->
137 (** Object oriented interface to HTTP daemons.
138 @param addr address on which daemon will listen for connections
139 @param port port which daemon will bind
140 see {! Http_types.daemon} *)
142 ?addr: string -> ?port: int ->
146 (** Trivial static pages HTTP daemon.
147 Daemons created using this module will serve directory indexes and files found
148 starting from the working directory *)
151 (** callback function, exposed if you like to use it as a basis to define
152 a more powerful daemon *)
153 val callback : string -> 'a -> out_channel -> unit
155 (** start the "trivial" HTTP daemon *)
156 val start : ?addr:string -> ?port:int -> unit -> unit