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68 lines
2.7 KiB
Plaintext
68 lines
2.7 KiB
Plaintext
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is necko content sniffer interface.
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*
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* The Initial Developer of the Original Code is
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* Christian Biesinger <cbiesinger@web.de>.
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* Portions created by the Initial Developer are Copyright (C) 2004
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsISupports.idl"
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interface nsIRequest;
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/**
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* Content sniffer interface. Components implementing this interface can
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* determine a MIME type from a chunk of bytes.
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*/
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[scriptable, uuid(a5772d1b-fc63-495e-a169-96e8d3311af0)]
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interface nsIContentSniffer : nsISupports
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{
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/**
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* Given a chunk of data, determines a MIME type. Information from the given
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* request may be used in order to make a better decision.
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*
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* @param aRequest The request where this data came from. May be null.
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* @param aData Data to check
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* @param aLength Length of the data
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*
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* @return The content type
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*
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* @throw NS_ERROR_NOT_AVAILABLE if no MIME type could be determined.
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*
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* @note Implementations should consider the request read-only. Especially,
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* they should not attempt to set the content type property that subclasses of
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* nsIRequest might offer.
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*/
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ACString getMIMETypeFromContent(in nsIRequest aRequest,
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[const,array,size_is(aLength)] in octet aData,
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in unsigned long aLength);
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};
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