diff options
Diffstat (limited to 'stoc/source/uriproc/ExternalUriReferenceTranslator.cxx')
| -rw-r--r-- | stoc/source/uriproc/ExternalUriReferenceTranslator.cxx | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/stoc/source/uriproc/ExternalUriReferenceTranslator.cxx b/stoc/source/uriproc/ExternalUriReferenceTranslator.cxx new file mode 100644 index 000000000..b9e2ca4e9 --- /dev/null +++ b/stoc/source/uriproc/ExternalUriReferenceTranslator.cxx @@ -0,0 +1,187 @@ +/* -*- 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: */ |