1 : /* ***** BEGIN LICENSE BLOCK *****
2 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
3 : *
4 : * The contents of this file are subject to the Mozilla Public License Version
5 : * 1.1 (the "License"); you may not use this file except in compliance with
6 : * the License. You may obtain a copy of the License at
7 : * http://www.mozilla.org/MPL/
8 : *
9 : * Software distributed under the License is distributed on an "AS IS" basis,
10 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
11 : * for the specific language governing rights and limitations under the
12 : * License.
13 : *
14 : * The Original Code is nsAboutProtocolUtils.
15 : *
16 : * The Initial Developer of the Original Code is the Mozilla Foundation.
17 : * Portions created by the Initial Developer are Copyright (C) 2005
18 : * the Initial Developer. All Rights Reserved.
19 : *
20 : * Contributor(s):
21 : * L. David Baron <dbaron@dbaron.org> (original author)
22 : *
23 : * Alternatively, the contents of this file may be used under the terms of
24 : * either the GNU General Public License Version 2 or later (the "GPL"), or
25 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
26 : * in which case the provisions of the GPL or the LGPL are applicable instead
27 : * of those above. If you wish to allow use of your version of this file only
28 : * under the terms of either the GPL or the LGPL, and not to allow others to
29 : * use your version of this file under the terms of the MPL, indicate your
30 : * decision by deleting the provisions above and replace them with the notice
31 : * and other provisions required by the GPL or the LGPL. If you do not delete
32 : * the provisions above, a recipient may use your version of this file under
33 : * the terms of any one of the MPL, the GPL or the LGPL.
34 : *
35 : * ***** END LICENSE BLOCK ***** */
36 :
37 : #include "nsIURI.h"
38 : #include "nsString.h"
39 : #include "nsReadableUtils.h"
40 : #include "nsIAboutModule.h"
41 :
42 : inline nsresult
43 0 : NS_GetAboutModuleName(nsIURI *aAboutURI, nsCString& aModule)
44 : {
45 : #ifdef DEBUG
46 : {
47 : bool isAbout;
48 0 : NS_ASSERTION(NS_SUCCEEDED(aAboutURI->SchemeIs("about", &isAbout)) &&
49 : isAbout,
50 : "should be used only on about: URIs");
51 : }
52 : #endif
53 :
54 0 : nsresult rv = aAboutURI->GetPath(aModule);
55 0 : NS_ENSURE_SUCCESS(rv, rv);
56 :
57 0 : PRInt32 f = aModule.FindCharInSet(NS_LITERAL_CSTRING("#?"));
58 0 : if (f != kNotFound) {
59 0 : aModule.Truncate(f);
60 : }
61 :
62 : // convert to lowercase, as all about: modules are lowercase
63 0 : ToLowerCase(aModule);
64 0 : return NS_OK;
65 : }
66 :
67 : inline nsresult
68 0 : NS_GetAboutModule(nsIURI *aAboutURI, nsIAboutModule** aModule)
69 : {
70 0 : NS_PRECONDITION(aAboutURI, "Must have URI");
71 :
72 0 : nsCAutoString contractID;
73 0 : nsresult rv = NS_GetAboutModuleName(aAboutURI, contractID);
74 0 : if (NS_FAILED(rv)) return rv;
75 :
76 : // look up a handler to deal with "what"
77 0 : contractID.Insert(NS_LITERAL_CSTRING(NS_ABOUT_MODULE_CONTRACTID_PREFIX), 0);
78 :
79 0 : return CallGetService(contractID.get(), aModule);
80 : }
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