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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <sal/config.h>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/uno/Sequence.hxx>
#include <com/sun/star/uri/XExternalUriReferenceTranslator.hpp>
#include <cppuhelper/implbase.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <cppuhelper/weak.hxx>
#include <osl/thread.h>
#include <rtl/string.h>
#include <rtl/textenc.h>
#include <rtl/uri.h>
#include <rtl/uri.hxx>
#include <rtl/ustrbuf.hxx>
#include <rtl/ustring.hxx>
#include <sal/types.h>
namespace com::sun::star::uno { class XInterface; }
namespace com::sun::star::uno { class XComponentContext; }
namespace {
class Translator:
public cppu::WeakImplHelper<
css::lang::XServiceInfo, css::uri::XExternalUriReferenceTranslator>
{
public:
Translator() {}
Translator(const Translator&) = delete;
Translator& operator=(const Translator&) = delete;
virtual OUString SAL_CALL getImplementationName() override;
virtual sal_Bool SAL_CALL supportsService(OUString const & serviceName) override;
virtual css::uno::Sequence< OUString > SAL_CALL
getSupportedServiceNames() override;
virtual OUString SAL_CALL
translateToInternal(OUString const & externalUriReference) override;
virtual OUString SAL_CALL
translateToExternal(OUString const & internalUriReference) override;
private:
virtual ~Translator() override {}
};
OUString Translator::getImplementationName()
{
return "com.sun.star.comp.uri.ExternalUriReferenceTranslator";
}
sal_Bool Translator::supportsService(OUString const & serviceName)
{
return cppu::supportsService(this, serviceName);
}
css::uno::Sequence< OUString > Translator::getSupportedServiceNames()
{
css::uno::Sequence< OUString > s { "com.sun.star.uri.ExternalUriReferenceTranslator" };
return s;
}
OUString Translator::translateToInternal(
OUString const & externalUriReference)
{
if (!externalUriReference.matchIgnoreAsciiCase("file:/"))
{
return externalUriReference;
}
sal_Int32 i = RTL_CONSTASCII_LENGTH("file:");
OUStringBuffer buf(128);
buf.append(externalUriReference.subView(0, i));
// Some environments (e.g., Java) produce illegal file URLs without an
// authority part; treat them as having an empty authority part:
if (!externalUriReference.match("//", i))
{
buf.append("//");
}
rtl_TextEncoding encoding = osl_getThreadTextEncoding();
for (bool path = true;;) {
sal_Int32 j = i;
while (j != externalUriReference.getLength()
&& externalUriReference[j] != '#'
&& (!path || externalUriReference[j] != '/'))
{
++j;
}
if (j != i) {
OUString seg(
rtl::Uri::encode(
rtl::Uri::decode(
externalUriReference.copy(i, j - i),
rtl_UriDecodeStrict, encoding),
rtl_UriCharClassPchar, rtl_UriEncodeStrict,
RTL_TEXTENCODING_UTF8));
if (seg.isEmpty()) {
return OUString();
}
buf.append(seg);
}
if (j == externalUriReference.getLength()) {
break;
}
buf.append(externalUriReference[j]);
path = externalUriReference[j] == '/';
i = j + 1;
}
return buf.makeStringAndClear();
}
OUString Translator::translateToExternal(
OUString const & internalUriReference)
{
if (!internalUriReference.matchIgnoreAsciiCase("file://"))
{
return internalUriReference;
}
sal_Int32 i = RTL_CONSTASCII_LENGTH("file://");
OUStringBuffer buf(128);
buf.append(internalUriReference.subView(0, i));
rtl_TextEncoding encoding = osl_getThreadTextEncoding();
for (bool path = true;;) {
sal_Int32 j = i;
while (j != internalUriReference.getLength()
&& internalUriReference[j] != '#'
&& (!path || internalUriReference[j] != '/'))
{
++j;
}
if (j != i) {
// Use rtl_UriDecodeToIuri -> rtl_UriEncodeStrictKeepEscapes instead
// of rtl_UriDecodeStrict -> rtl_UriEncodeStrict, so that spurious
// non--UTF-8 octets like "%FE" are copied verbatim:
OUString seg(
rtl::Uri::encode(
rtl::Uri::decode(
internalUriReference.copy(i, j - i),
rtl_UriDecodeToIuri, RTL_TEXTENCODING_UTF8),
rtl_UriCharClassPchar, rtl_UriEncodeStrictKeepEscapes,
encoding));
if (seg.isEmpty()) {
return OUString();
}
buf.append(seg);
}
if (j == internalUriReference.getLength()) {
break;
}
buf.append(internalUriReference[j]);
path = internalUriReference[j] == '/';
i = j + 1;
}
return buf.makeStringAndClear();
}
}
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
com_sun_star_comp_uri_ExternalUriReferenceTranslator_get_implementation(css::uno::XComponentContext* ,
css::uno::Sequence<css::uno::Any> const &)
{
return ::cppu::acquire(new Translator);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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