3 * Stefano Zacchiroli <zack@cs.unibo.it>
4 * for the HELM Team http://helm.cs.unibo.it/
6 * This file is part of HELM, an Hypertextual, Electronic
7 * Library of Mathematics, developed at the Computer Science
8 * Department, University of Bologna, Italy.
10 * HELM is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * HELM is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with HELM; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
25 * For details, see the HELM World-Wide-Web page,
26 * http://helm.cs.unibo.it/
31 exception Uwobo_failure of string ;;
33 let uwobo_namespace = "http://helm.cs.unibo.it/uwobo" ;;
34 let xsl_namespace = "http://helm.cs.unibo.it/uwobo" ;;
36 let supported_properties = [
37 "cdata-section-elements";
44 "omit-xml-declaration";
49 let is_supported_property name = List.mem name supported_properties
51 let version = "0.3.0" ;;
58 <title>UWOBO's help message</title>
61 <h1>UWOBO (version: %s)</h1>
66 Usage: <kbd>http://hostname:uwoboport/</kbd><em>command</em>
72 <b><kbd>help</kbd></b><br />
73 displays this help message
76 <b><kbd>newsession?port=p</kbd></b><br />
77 starts a new daemon on a given port <em>p</em>
80 <b><kbd>kill</kbd></b><br />
81 kills the daemon. The log file is mantained.
84 <b><kbd>add?bind=key,uri[&bind=key,uri[&...]]</kbd></b><br />
85 loads a new stylesheet, specified by <em>uri</em>, and bind it to key
89 <b><kbd>remove?keys=[key1,key2,...]</kbd></b><br />
90 unload stylesheets specified by <em>key1, key2, ...</em> or all
91 stylesheets if no key was given
94 <b><kbd>reload?keys=[key1,key2,...]</kbd></b><br />
95 reloads the stylesheets specified by <em>key1, key2, ...</em>. Reloads all
96 the stylesheets if no key was given
99 <b><kbd>list</kbd></b><br />
100 returns the list of loaded stylesheets
103 <b><kbd>apply?xmluri=uri&keys=key1,key2,...[&errormode={ignore|comment|embed}][&debugmode={ignore|comment|embed}][&profile=id][&password=password][¶m.name=value[¶m.name=value[&...]]][¶m.key.name=value[¶m.key.name=value[&...]]][&prop.name[=value][&prop.name[=value][&...]]]</kbd></b><br />
104 applies a chain of stylesheets, specified by <em>key1, key2, ...</em>, to an
105 input document, specified by <em>uri</em>.<br />
106 Error and debugging modes could be ste to three different values.
107 <em>ignore</em> means that LibXSLT messages are ignored; <em>comment</em>
108 meanst that LibXSLT messages are embedded in the result document inside an
109 XML like comment; <em>embed</em> means that LibXSLT messages are embedded
110 at the beginning of the result document (as childs of the root node) in
111 XML elements in the UWOBO namespace<br />
112 Additional parameters can be set for each stylesheet application: global
113 parameters (i.e. parameters passed to all stylesheets) are set using
114 <em>param.name=value</em> syntax, per stylesheet parameters are set using
115 <em>param.key.name=value</em> where <em>key</em> is the key of a loaded
117 Moreover, it is possible to specify a <em>profile</em> that is searched for
118 additional global and local parameters. The parameters stored in the profile
119 have lower precedence with respect to those provided in the URL. A
120 <em>password</em> for the profile must be provided if the read permission
121 of the profile is set to false.<br />
122 Properties of the final chain output can be set as well: valueless properties
123 can be set using <em>prop.name</em> syntax, others can be set using
124 <em>prop.name=value</em> syntax.<br />
125 Current supported properties are: %s.
128 <b><kbd>listprofiles</kbd></b><br />
129 returns the list of profiles available
132 <b><kbd>createprofile?[id=id][&orig=orig][&origpassword=origpassword][&readperm={public|private}][&writeperm={public|private}][&adminperm={public|private}][&password=password]</kbd></b><br />
133 creates a new profile. The id of the created profile is <em>id</em> (if provided); otherwise it is a fresh id.
134 The parameters are inherited from the profile <em>orig</em>, if provided. <em>origpassword</em> is the password of the
135 profile being copied in case the read permission of that profile is set to false. The default for
136 <em>password</em> is no password, the defaults for <em>readper,writeperm,adminperm</em> are public, public, public.
139 <b><kbd>removeprofile?id=id[&password=password]</kbd></b><br />
140 removes the profile <em>id</em>. The password is required if the profile administrative permission
144 <b><kbd>setparam?id=id[&password=password]&key=key[&value=value]</kbd></b><br />
145 sets the parameter <em>key</em> to <em>value</em>, if <em>value</em> is provided; otherwise
146 the parameter is unset. The password is required if the profile writing permission is set to
150 <b><kbd>setpassword?id=id[&oldpassword=oldpassword][&password=password]</kbd></b><br />
151 changes or unset the password for a profile. The old password is required if it was set.
154 <b><kbd>setpermission?id=id[&password=password]&permission={read|write|admin}&value={public|private}</kbd></b><br />
155 changes the permission <em>permission</em>. The password is required if the administrative permission
159 <b><kbd>getparams?id=id[&password=password]</kbd></b><br />
160 returns all the parameters of the profile <em>id</em>. The password is required if the read permission
164 <b><kbd>getparam?id=id[&password=password]&key=key</kbd></b><br />
165 returns the value of the parameter <em>key</em> of the profile <em>id</em>. The password is required if the read permission
169 <b><kbd>getpermission?id=id[&password=password]&for={read|write|admin}</kbd></b><br />
170 returns the value of the permission <em>key</em> of the profile <em>id</em>. The password is required if the administrative
171 permission is set to false.
177 (String.concat ", " supported_properties) (* supported properties *)
182 "<html><body><span style=\"color:red\">Error: %s</span>%s</body></html>"
184 let return_error msg ?(body = "") outchan =
185 Http_daemon.respond ~body:(pp_error msg body) outchan;;
186 let bad_request body outchan =
187 Http_daemon.respond_error ~code:(`Code 400) ~body outchan
190 (** {2 LibXSLT logging} *)
193 | LibXsltErrorMsg of string
194 | LibXsltDebugMsg of string
197 let string_of_xslt_msg = function
198 | LibXsltErrorMsg msg -> "LibXSLT ERROR: " ^ msg
199 | LibXsltDebugMsg msg -> "LibXSLT DEBUG: " ^ msg
208 class libXsltLogger =
209 let is_libxslt_error = function LibXsltErrorMsg _ -> true | _ -> false in
210 let is_libxslt_debug = function LibXsltDebugMsg _ -> true | _ -> false in
211 let flatten_libxslt_msg = function
212 | LibXsltErrorMsg msg -> msg
213 | LibXsltDebugMsg msg -> msg
218 Gdome_xslt.setErrorCallback
219 (Some (fun msg -> self#appendMsg (LibXsltErrorMsg msg)));
220 Gdome_xslt.setDebugCallback
221 (Some (fun msg -> self#appendMsg (LibXsltDebugMsg msg)))
223 val mutable libXsltMsgs = [] (** libxslt's error and debugging messages *)
225 (* libxslt's error and debugging messages handling *)
227 method private appendMsg msg = libXsltMsgs <- msg :: libXsltMsgs
229 method clearMsgs = libXsltMsgs <- []
230 method clearErrorMsgs =
231 libXsltMsgs <- List.filter is_libxslt_debug libXsltMsgs
232 method clearDebugMsgs =
233 libXsltMsgs <- List.filter is_libxslt_error libXsltMsgs
235 method msgs = libXsltMsgs
237 List.map flatten_libxslt_msg (List.filter is_libxslt_error libXsltMsgs)
239 List.map flatten_libxslt_msg (List.filter is_libxslt_debug libXsltMsgs)