diff options
Diffstat (limited to 'stoc/source/uriproc/UriSchemeParser_vndDOTsunDOTstarDOTscript.cxx')
| -rw-r--r-- | stoc/source/uriproc/UriSchemeParser_vndDOTsunDOTstarDOTscript.cxx | 386 |
1 files changed, 386 insertions, 0 deletions
diff --git a/stoc/source/uriproc/UriSchemeParser_vndDOTsunDOTstarDOTscript.cxx b/stoc/source/uriproc/UriSchemeParser_vndDOTsunDOTstarDOTscript.cxx new file mode 100644 index 000000000..a8203a811 --- /dev/null +++ b/stoc/source/uriproc/UriSchemeParser_vndDOTsunDOTstarDOTscript.cxx @@ -0,0 +1,386 @@ +/* -*- 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 "UriReference.hxx" + +#include <com/sun/star/lang/IllegalArgumentException.hpp> +#include <com/sun/star/lang/XServiceInfo.hpp> +#include <com/sun/star/uno/Reference.hxx> +#include <com/sun/star/uno/Sequence.hxx> +#include <com/sun/star/uri/XUriSchemeParser.hpp> +#include <com/sun/star/uri/XVndSunStarScriptUrlReference.hpp> +#include <cppuhelper/implbase.hxx> +#include <cppuhelper/supportsservice.hxx> +#include <cppuhelper/weak.hxx> +#include <rtl/character.hxx> +#include <rtl/uri.hxx> +#include <rtl/ustrbuf.hxx> +#include <rtl/ustring.hxx> +#include <sal/types.h> +#include <o3tl/safeint.hxx> + +#include <string_view> + +namespace com::sun::star::uno { class XComponentContext; } +namespace com::sun::star::uno { class XInterface; } +namespace com::sun::star::uri { class XUriReference; } + +namespace { + +int getHexWeight(sal_Unicode c) { + return c >= '0' && c <= '9' ? static_cast< int >(c - '0') + : c >= 'A' && c <= 'F' ? static_cast< int >(c - 'A' + 10) + : c >= 'a' && c <= 'f' ? static_cast< int >(c - 'a' + 10) + : -1; +} + +int parseEscaped(std::u16string_view part, sal_Int32 * index) { + if (part.size() - *index < 3 || part[*index] != '%') { + return -1; + } + int n1 = getHexWeight(part[*index + 1]); + int n2 = getHexWeight(part[*index + 2]); + if (n1 < 0 || n2 < 0) { + return -1; + } + *index += 3; + return (n1 << 4) | n2; +} + +OUString parsePart( + std::u16string_view part, bool namePart, sal_Int32 * index) +{ + OUStringBuffer buf(64); + while (o3tl::make_unsigned(*index) < part.size()) { + sal_Unicode c = part[*index]; + if (namePart ? c == '?' : c == '&' || c == '=') { + break; + } else if (c == '%') { + sal_Int32 i = *index; + int n = parseEscaped(part, &i); + if (n >= 0 && n <= 0x7F) { + buf.append(static_cast< sal_Unicode >(n)); + } else if (n >= 0xC0 && n <= 0xFC) { + sal_Int32 encoded; + int shift; + sal_Int32 min; + if (n <= 0xDF) { + encoded = (n & 0x1F) << 6; + shift = 0; + min = 0x80; + } else if (n <= 0xEF) { + encoded = (n & 0x0F) << 12; + shift = 6; + min = 0x800; + } else if (n <= 0xF7) { + encoded = (n & 0x07) << 18; + shift = 12; + min = 0x10000; + } else if (n <= 0xFB) { + encoded = (n & 0x03) << 24; + shift = 18; + min = 0x200000; + } else { + encoded = 0; + shift = 24; + min = 0x4000000; + } + bool utf8 = true; + for (; shift >= 0; shift -= 6) { + n = parseEscaped(part, &i); + if (n < 0x80 || n > 0xBF) { + utf8 = false; + break; + } + encoded |= (n & 0x3F) << shift; + } + if (!utf8 || !rtl::isUnicodeScalarValue(encoded) + || encoded < min) + { + break; + } + buf.appendUtf32(encoded); + } else { + break; + } + *index = i; + } else { + buf.append(c); + ++*index; + } + } + return buf.makeStringAndClear(); +} + +OUString encodeNameOrParamFragment(OUString const & fragment) { + static constexpr auto nameOrParamFragment = rtl::createUriCharClass( + u8"!$'()*+,-.0123456789:;@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]_abcdefghijklmnopqrstuvwxyz~"); + return rtl::Uri::encode( + fragment, nameOrParamFragment.data(), rtl_UriEncodeIgnoreEscapes, + RTL_TEXTENCODING_UTF8); +} + +bool parseSchemeSpecificPart(std::u16string_view part) { + size_t len = part.size(); + sal_Int32 i = 0; + if (parsePart(part, true, &i).isEmpty() || part[0] == '/') { + return false; + } + if (o3tl::make_unsigned(i) == len) { + return true; + } + for (;;) { + ++i; // skip '?' or '&' + if (parsePart(part, false, &i).isEmpty() || o3tl::make_unsigned(i) == len + || part[i] != '=') + { + return false; + } + ++i; + parsePart(part, false, &i); + if (o3tl::make_unsigned(i) == len) { + return true; + } + if (part[i] != '&') { + return false; + } + } +} + +class UrlReference: + public cppu::WeakImplHelper<css::uri::XVndSunStarScriptUrlReference> +{ +public: + UrlReference(OUString const & scheme, OUString const & path): + m_base( + scheme, false, OUString(), path, false, OUString()) + {} + + UrlReference(const UrlReference&) = delete; + UrlReference& operator=(const UrlReference&) = delete; + + virtual OUString SAL_CALL getUriReference() override + { return m_base.getUriReference(); } + + virtual sal_Bool SAL_CALL isAbsolute() override + { return m_base.isAbsolute(); } + + virtual OUString SAL_CALL getScheme() override + { return m_base.getScheme(); } + + virtual OUString SAL_CALL getSchemeSpecificPart() override + { return m_base.getSchemeSpecificPart(); } + + virtual sal_Bool SAL_CALL isHierarchical() override + { return m_base.isHierarchical(); } + + virtual sal_Bool SAL_CALL hasAuthority() override + { return m_base.hasAuthority(); } + + virtual OUString SAL_CALL getAuthority() override + { return m_base.getAuthority(); } + + virtual OUString SAL_CALL getPath() override + { return m_base.getPath(); } + + virtual sal_Bool SAL_CALL hasRelativePath() override + { return m_base.hasRelativePath(); } + + virtual sal_Int32 SAL_CALL getPathSegmentCount() override + { return m_base.getPathSegmentCount(); } + + virtual OUString SAL_CALL getPathSegment(sal_Int32 index) override + { return m_base.getPathSegment(index); } + + virtual sal_Bool SAL_CALL hasQuery() override + { return m_base.hasQuery(); } + + virtual OUString SAL_CALL getQuery() override + { return m_base.getQuery(); } + + virtual sal_Bool SAL_CALL hasFragment() override + { return m_base.hasFragment(); } + + virtual OUString SAL_CALL getFragment() override + { return m_base.getFragment(); } + + virtual void SAL_CALL setFragment(OUString const & fragment) override + { m_base.setFragment(fragment); } + + virtual void SAL_CALL clearFragment() override + { m_base.clearFragment(); } + + virtual OUString SAL_CALL getName() override; + + virtual void SAL_CALL setName(OUString const & name) override; + + virtual sal_Bool SAL_CALL hasParameter(OUString const & key) override; + + virtual OUString SAL_CALL getParameter(OUString const & key) override; + + virtual void SAL_CALL setParameter(OUString const & key, OUString const & value) override; + +private: + virtual ~UrlReference() override {} + + sal_Int32 findParameter(std::u16string_view key) const; + + stoc::uriproc::UriReference m_base; +}; + +OUString UrlReference::getName() { + std::lock_guard g(m_base.m_mutex); + sal_Int32 i = 0; + return parsePart(m_base.m_path, true, &i); +} + +void SAL_CALL UrlReference::setName(OUString const & name) +{ + if (name.isEmpty()) + throw css::lang::IllegalArgumentException( + OUString(), *this, 1); + + std::lock_guard g(m_base.m_mutex); + sal_Int32 i = 0; + parsePart(m_base.m_path, true, &i); + + m_base.m_path = encodeNameOrParamFragment(name) + m_base.m_path.subView(i); +} + +sal_Bool UrlReference::hasParameter(OUString const & key) +{ + std::lock_guard g(m_base.m_mutex); + return findParameter(key) >= 0; +} + +OUString UrlReference::getParameter(OUString const & key) +{ + std::lock_guard g(m_base.m_mutex); + sal_Int32 i = findParameter(key); + return i >= 0 ? parsePart(m_base.m_path, false, &i) : OUString(); +} + +void UrlReference::setParameter(OUString const & key, OUString const & value) +{ + if (key.isEmpty()) + throw css::lang::IllegalArgumentException( + OUString(), *this, 1); + + std::lock_guard g(m_base.m_mutex); + sal_Int32 i = findParameter(key); + bool bExistent = ( i>=0 ); + if (!bExistent) { + i = m_base.m_path.getLength(); + } + + OUStringBuffer newPath(128); + newPath.append(m_base.m_path.subView(0, i)); + if (!bExistent) { + newPath.append( m_base.m_path.indexOf('?') < 0 ? '?' : '&' ); + newPath.append(encodeNameOrParamFragment(key)); + newPath.append('='); + } + newPath.append(encodeNameOrParamFragment(value)); + if (bExistent) { + /*oldValue = */ + parsePart(m_base.m_path, false, &i); // skip key + newPath.append(m_base.m_path.subView(i)); + } + + m_base.m_path = newPath.makeStringAndClear(); +} + +sal_Int32 UrlReference::findParameter(std::u16string_view key) const { + sal_Int32 i = 0; + parsePart(m_base.m_path, true, &i); // skip name + for (;;) { + if (i == m_base.m_path.getLength()) { + return -1; + } + ++i; // skip '?' or '&' + OUString k = parsePart(m_base.m_path, false, &i); + ++i; // skip '=' + if (k == key) { + return i; + } + parsePart(m_base.m_path, false, &i); // skip value + } +} + +class Parser: + public cppu::WeakImplHelper< + css::lang::XServiceInfo, css::uri::XUriSchemeParser> +{ +public: + Parser() {} + + Parser(const Parser&) = delete; + Parser& operator=(const Parser&) = 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 css::uno::Reference< css::uri::XUriReference > SAL_CALL + parse( + OUString const & scheme, OUString const & schemeSpecificPart) override; + +private: + virtual ~Parser() override {} +}; + +OUString Parser::getImplementationName() +{ + return "com.sun.star.comp.uri.UriSchemeParser_vndDOTsunDOTstarDOTscript"; +} + +sal_Bool Parser::supportsService(OUString const & serviceName) +{ + return cppu::supportsService(this, serviceName); +} + +css::uno::Sequence< OUString > Parser::getSupportedServiceNames() +{ + return { "com.sun.star.uri.UriSchemeParser_vndDOTsunDOTstarDOTscript" }; +} + +css::uno::Reference< css::uri::XUriReference > +Parser::parse( + OUString const & scheme, OUString const & schemeSpecificPart) +{ + if (!parseSchemeSpecificPart(schemeSpecificPart)) { + return nullptr; + } + return new UrlReference(scheme, schemeSpecificPart); +} + +} + +extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface* +com_sun_star_comp_uri_UriSchemeParser_vndDOTsunDOTstarDOTscript_get_implementation(css::uno::XComponentContext*, + css::uno::Sequence<css::uno::Any> const &) +{ + //TODO: single instance + return ::cppu::acquire(new Parser()); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |