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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 <cassert>
#include <com/sun/star/uno/Any.hxx>
#include <com/sun/star/uno/RuntimeException.hpp>
#include <com/sun/star/uno/Sequence.hxx>
#include <comphelper/sequence.hxx>
#include <o3tl/string_view.hxx>
#include <rtl/math.h>
#include <rtl/string.h>
#include <rtl/string.hxx>
#include <rtl/ustring.hxx>
#include <sal/types.h>
#include <xmlreader/span.hxx>
#include <xmlreader/xmlreader.hxx>
#include "data.hxx"
#include "localizedvaluenode.hxx"
#include "node.hxx"
#include "nodemap.hxx"
#include "parsemanager.hxx"
#include "propertynode.hxx"
#include "type.hxx"
#include "valueparser.hxx"
namespace configmgr {
namespace {
bool parseHexDigit(char c, int * value) {
assert(value != nullptr);
if (c >= '0' && c <= '9') {
*value = c - '0';
return true;
}
if (c >= 'A' && c <= 'F') {
*value = c - 'A' + 10;
return true;
}
if (c >= 'a' && c <= 'f') {
*value = c - 'a' + 10;
return true;
}
return false;
}
bool parseValue(xmlreader::Span const & text, sal_Bool * value) {
assert(text.is() && value != nullptr);
if (text == "true" || text == "1") {
*value = true;
return true;
}
if (text == "false" || text == "0") {
*value = false;
return true;
}
return false;
}
bool parseValue(xmlreader::Span const & text, sal_Int16 * value) {
assert(text.is() && value != nullptr);
// For backwards compatibility, support hexadecimal values:
bool bStartWithHexPrefix =
rtl_str_shortenedCompareIgnoreAsciiCase_WithLength(
text.begin, text.length, RTL_CONSTASCII_STRINGPARAM("0X"),
RTL_CONSTASCII_LENGTH("0X")) == 0;
sal_Int32 n;
if (bStartWithHexPrefix)
{
std::string_view sView(
text.begin + RTL_CONSTASCII_LENGTH("0X"),
text.length - RTL_CONSTASCII_LENGTH("0X"));
n = o3tl::toUInt32(sView, 16);
}
else
n = o3tl::toInt32(std::string_view(text.begin, text.length));
//TODO: check valid lexical representation
if (n >= SAL_MIN_INT16 && n <= SAL_MAX_INT16) {
*value = static_cast< sal_Int16 >(n);
return true;
}
return false;
}
bool parseValue(xmlreader::Span const & text, sal_Int32 * value) {
assert(text.is() && value != nullptr);
// For backwards compatibility, support hexadecimal values:
bool bStartWithHexPrefix = rtl_str_shortenedCompareIgnoreAsciiCase_WithLength(
text.begin, text.length, RTL_CONSTASCII_STRINGPARAM("0X"),
RTL_CONSTASCII_LENGTH("0X")) == 0;
if (bStartWithHexPrefix)
{
std::string_view sView(text.begin + RTL_CONSTASCII_LENGTH("0X"),
text.length - RTL_CONSTASCII_LENGTH("0X"));
*value = static_cast< sal_Int32 >(o3tl::toUInt32(sView, 16));
}
else
{
std::string_view sView(text.begin, text.length);
*value = o3tl::toInt32(sView);
}
//TODO: check valid lexical representation
return true;
}
bool parseValue(xmlreader::Span const & text, sal_Int64 * value) {
assert(text.is() && value != nullptr);
// For backwards compatibility, support hexadecimal values:
bool bStartWithHexPrefix =
rtl_str_shortenedCompareIgnoreAsciiCase_WithLength(
text.begin, text.length, RTL_CONSTASCII_STRINGPARAM("0X"),
RTL_CONSTASCII_LENGTH("0X")) == 0;
if (bStartWithHexPrefix)
{
OString sSuffix(
text.begin + RTL_CONSTASCII_LENGTH("0X"),
text.length - RTL_CONSTASCII_LENGTH("0X"));
*value = static_cast< sal_Int64 >(sSuffix.toUInt64(16));
}
else *value = o3tl::toInt64(std::string_view(text.begin, text.length));
//TODO: check valid lexical representation
return true;
}
bool parseValue(xmlreader::Span const & text, double * value) {
assert(text.is() && value != nullptr);
*value = rtl_math_stringToDouble(
text.begin, text.begin + text.length, '.', 0, nullptr, nullptr);
//TODO: check valid lexical representation
return true;
}
bool parseValue(xmlreader::Span const & text, OUString * value) {
assert(text.is() && value != nullptr);
*value = text.convertFromUtf8();
return true;
}
bool parseValue(
xmlreader::Span const & text, css::uno::Sequence< sal_Int8 > * value)
{
assert(text.is() && value != nullptr);
if ((text.length & 1) != 0) {
return false;
}
std::vector< sal_Int8 > seq;
for (sal_Int32 i = 0; i != text.length;) {
int n1;
int n2;
if (!parseHexDigit(text.begin[i++], &n1) ||
!parseHexDigit(text.begin[i++], &n2))
{
return false;
}
seq.push_back(static_cast< sal_Int8 >((n1 << 4) | n2));
}
*value = comphelper::containerToSequence(seq);
return true;
}
template< typename T > css::uno::Any parseSingleValue(
xmlreader::Span const & text)
{
T val;
if (!parseValue(text, &val)) {
throw css::uno::RuntimeException("invalid value");
}
return css::uno::Any(val);
}
template< typename T > css::uno::Any parseListValue(
OString const & separator, xmlreader::Span const & text)
{
std::vector< T > seq;
xmlreader::Span sep;
if (separator.isEmpty()) {
sep = xmlreader::Span(RTL_CONSTASCII_STRINGPARAM(" "));
} else {
sep = xmlreader::Span(separator.getStr(), separator.getLength());
}
if (text.length != 0) {
for (xmlreader::Span t(text);;) {
sal_Int32 i = rtl_str_indexOfStr_WithLength(
t.begin, t.length, sep.begin, sep.length);
T val;
if (!parseValue(
xmlreader::Span(t.begin, i == -1 ? t.length : i), &val))
{
throw css::uno::RuntimeException("invalid value");
}
seq.push_back(val);
if (i < 0) {
break;
}
t.begin += i + sep.length;
t.length -= i + sep.length;
}
}
return css::uno::Any(comphelper::containerToSequence(seq));
}
css::uno::Any parseValue(
OString const & separator, xmlreader::Span const & text, Type type)
{
switch (type) {
case TYPE_ANY:
throw css::uno::RuntimeException("invalid value of type any");
case TYPE_BOOLEAN:
return parseSingleValue< sal_Bool >(text);
case TYPE_SHORT:
return parseSingleValue< sal_Int16 >(text);
case TYPE_INT:
return parseSingleValue< sal_Int32 >(text);
case TYPE_LONG:
return parseSingleValue< sal_Int64 >(text);
case TYPE_DOUBLE:
return parseSingleValue< double >(text);
case TYPE_STRING:
return parseSingleValue< OUString >(text);
case TYPE_HEXBINARY:
return parseSingleValue< css::uno::Sequence< sal_Int8 > >(text);
case TYPE_BOOLEAN_LIST:
return parseListValue< sal_Bool >(separator, text);
case TYPE_SHORT_LIST:
return parseListValue< sal_Int16 >(separator, text);
case TYPE_INT_LIST:
return parseListValue< sal_Int32 >(separator, text);
case TYPE_LONG_LIST:
return parseListValue< sal_Int64 >(separator, text);
case TYPE_DOUBLE_LIST:
return parseListValue< double >(separator, text);
case TYPE_STRING_LIST:
return parseListValue< OUString >(separator, text);
case TYPE_HEXBINARY_LIST:
return parseListValue< css::uno::Sequence< sal_Int8 > >(
separator, text);
default:
assert(false);
throw css::uno::RuntimeException("this cannot happen");
}
}
}
ValueParser::ValueParser(int layer): type_(TYPE_ERROR), layer_(layer), state_() {}
ValueParser::~ValueParser() {}
xmlreader::XmlReader::Text ValueParser::getTextMode() const {
if (!node_)
return xmlreader::XmlReader::Text::NONE;
switch (state_) {
case State::Text:
if (!items_.empty()) {
break;
}
[[fallthrough]];
case State::IT:
return
(type_ == TYPE_STRING || type_ == TYPE_STRING_LIST ||
!separator_.isEmpty())
? xmlreader::XmlReader::Text::Raw
: xmlreader::XmlReader::Text::Normalized;
default:
break;
}
return xmlreader::XmlReader::Text::NONE;
}
bool ValueParser::startElement(
xmlreader::XmlReader & reader, int nsId, xmlreader::Span const & name)
{
if (!node_.is()) {
return false;
}
switch (state_) {
case State::Text:
if (nsId == xmlreader::XmlReader::NAMESPACE_NONE && name == "it" &&
isListType(type_) && separator_.isEmpty())
{
pad_.clear();
// before first <it>, characters are not ignored; assume they
// are only whitespace
state_ = State::IT;
return true;
}
[[fallthrough]];
case State::IT:
if (nsId == xmlreader::XmlReader::NAMESPACE_NONE &&
name == "unicode" &&
(type_ == TYPE_STRING || type_ == TYPE_STRING_LIST))
{
sal_Int32 scalar = -1;
for (;;) {
int attrNsId;
xmlreader::Span attrLn;
if (!reader.nextAttribute(&attrNsId, &attrLn)) {
break;
}
if (attrNsId == ParseManager::NAMESPACE_OOR &&
attrLn == "scalar")
{
if (!parseValue(reader.getAttributeValue(true), &scalar)) {
scalar = -1;
}
break;
}
}
if (scalar >= 0 && scalar < 0x20 && scalar != 0x09 &&
scalar != 0x0A && scalar != 0x0D)
{
char c = static_cast< char >(scalar);
pad_.add(&c, 1);
} else if (scalar == 0xFFFE) {
pad_.add(RTL_CONSTASCII_STRINGPARAM("\xEF\xBF\xBE"));
} else if (scalar == 0xFFFF) {
pad_.add(RTL_CONSTASCII_STRINGPARAM("\xEF\xBF\xBF"));
} else {
throw css::uno::RuntimeException(
"bad unicode scalar attribute in " + reader.getUrl());
}
state_ = state_ == State::Text ? State::TextUnicode : State::ITUnicode;
return true;
}
break;
default:
break;
}
throw css::uno::RuntimeException(
"bad member <" + name.convertFromUtf8() + "> in " + reader.getUrl());
}
bool ValueParser::endElement() {
if (!node_.is()) {
return false;
}
switch (state_) {
case State::Text:
{
css::uno::Any *pValue = nullptr;
switch (node_->kind()) {
case Node::KIND_PROPERTY:
pValue = static_cast< PropertyNode * >(node_.get())->getValuePtr(layer_, layer_ == Data::NO_LAYER);
break;
case Node::KIND_LOCALIZED_PROPERTY:
{
NodeMap & members = node_->getMembers();
auto [i, bInserted] = members.insert(NodeMap::value_type(localizedName_, nullptr));
LocalizedValueNode *pLVNode;
if (bInserted) {
pLVNode = new LocalizedValueNode(layer_);
i->second = pLVNode;
} else {
pLVNode = static_cast< LocalizedValueNode * >(i->second.get());
}
pValue = pLVNode->getValuePtr(layer_, layer_ == Data::NO_LAYER);
}
break;
default:
assert(false); // this cannot happen
return false;
}
if (items_.empty()) {
*pValue = parseValue(separator_, pad_.get(), type_);
pad_.clear();
} else {
switch (type_) {
case TYPE_BOOLEAN_LIST:
*pValue = convertItems< sal_Bool >();
break;
case TYPE_SHORT_LIST:
*pValue = convertItems< sal_Int16 >();
break;
case TYPE_INT_LIST:
*pValue = convertItems< sal_Int32 >();
break;
case TYPE_LONG_LIST:
*pValue = convertItems< sal_Int64 >();
break;
case TYPE_DOUBLE_LIST:
*pValue = convertItems< double >();
break;
case TYPE_STRING_LIST:
*pValue = convertItems< OUString >();
break;
case TYPE_HEXBINARY_LIST:
*pValue = convertItems< css::uno::Sequence< sal_Int8 > >();
break;
default:
assert(false); // this cannot happen
break;
}
items_.clear();
}
separator_.clear();
node_.clear();
}
break;
case State::TextUnicode:
state_ = State::Text;
break;
case State::ITUnicode:
state_ = State::IT;
break;
case State::IT:
items_.push_back(
parseValue(OString(), pad_.get(), elementType(type_)));
pad_.clear();
state_ = State::Text;
break;
}
return true;
}
void ValueParser::characters(xmlreader::Span const & text) {
if (node_.is()) {
assert(state_ == State::Text || state_ == State::IT);
pad_.add(text.begin, text.length);
}
}
void ValueParser::start(
rtl::Reference< Node > const & node, OUString const & localizedName)
{
assert(node.is() && !node_.is());
node_ = node;
localizedName_ = localizedName;
state_ = State::Text;
}
template< typename T > css::uno::Any ValueParser::convertItems() {
css::uno::Sequence< T > seq(items_.size());
auto seqRange = asNonConstRange(seq);
for (sal_Int32 i = 0; i < seq.getLength(); ++i) {
bool ok = (items_[i] >>= seqRange[i]);
assert(ok);
(void) ok; // avoid warnings
}
return css::uno::Any(seq);
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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