Grammar* XercesDOMParser::loadGrammar(const InputSource& source,
const Grammar::GrammarType grammarType,
const bool toCache)
{
// Avoid multiple entrance
if (getParseInProgress())
ThrowXMLwithMemMgr(IOException, XMLExcepts::Gen_ParseInProgress, fMemoryManager);
ResetParseType resetParse(this, &XercesDOMParser::resetParse);
Grammar* grammar = 0;
try
{
setParseInProgress(true);
if (grammarType == Grammar::DTDGrammarType)
getScanner()->setDocTypeHandler(0);
grammar = getScanner()->loadGrammar(source, grammarType, toCache);
}
catch(const OutOfMemoryException&)
{
resetParse.release();
throw;
}
return grammar;
}
void XercesDOMParser::cacheGrammarFromParse(const bool newState)
{
getScanner()->cacheGrammarFromParse(newState);
if (newState)
getScanner()->useCachedGrammarInParse(newState);
}
//
// We need to verify that all of its possible values
// (in the enum list)
// is distinct and
// refer to valid notations if toValidateNotation is set on
//
void DTDValidator::checkTokenList(const XMLAttDef& curAttDef
, bool toValidateNotation)
{
XMLCh* list = XMLString::replicate(curAttDef.getEnumeration(), getScanner()->getMemoryManager());
ArrayJanitor<XMLCh> janList(list, getScanner()->getMemoryManager());
//
// Search forward for a space or a null. If a null,
// we are done. If a space, cap it and look it up.
//
bool breakFlag = false;
XMLCh* listPtr = list;
XMLCh* lastPtr = listPtr;
while (true)
{
while (*listPtr && (*listPtr != chSpace))
listPtr++;
//
// If at the end, indicate we need to break after
// this one. Else, cap it off here.
//
if (!*listPtr)
breakFlag = true;
else
*listPtr++ = chNull;
//distinction check
//there should be no same token found in the remaining list
if (XMLString::isInList(lastPtr, listPtr))
{
emitError
(
XMLValid::AttrDupToken
, curAttDef.getFullName()
, lastPtr
);
}
if (toValidateNotation && !fDTDGrammar->getNotationDecl(lastPtr))
{
emitError
(
XMLValid::UnknownNotRefAttr
, curAttDef.getFullName()
, lastPtr
);
}
// Break out if we hit the end last time
if (breakFlag)
break;
// Else move upwards and try again
lastPtr = listPtr;
}
}
void XercesDOMParser::resetParse()
{
if (getScanner()->getDocTypeHandler() == 0)
{
getScanner()->setDocTypeHandler(this);
}
setParseInProgress(false);
}
void XercesDOMParser::setXMLEntityResolver(XMLEntityResolver* const handler)
{
fXMLEntityResolver = handler;
if (fXMLEntityResolver) {
getScanner()->setEntityHandler(this);
fEntityResolver = 0;
}
else {
getScanner()->setEntityHandler(0);
}
}
// ---------------------------------------------------------------------------
// DTDValidator: Implementation of the XMLValidator interface
// ---------------------------------------------------------------------------
bool DTDValidator::checkContent(XMLElementDecl* const elemDecl
, QName** const children
, XMLSize_t childCount
, XMLSize_t* indexFailingChild)
{
//
// Look up the element id in our element decl pool. This will get us
// the element decl in our own way of looking at them.
//
if (!elemDecl)
ThrowXMLwithMemMgr(RuntimeException, XMLExcepts::Val_InvalidElemId, getScanner()->getMemoryManager());
//
// Get the content spec type of this element. This will tell us what
// to do to validate it.
//
const DTDElementDecl::ModelTypes modelType = ((DTDElementDecl*) elemDecl)->getModelType();
if (modelType == DTDElementDecl::Empty)
{
//
// We can do this one here. It cannot have any children. If it does
// we return 0 as the index of the first bad child.
//
if (childCount)
{
*indexFailingChild=0;
return false;
}
}
else if (modelType == DTDElementDecl::Any)
{
// We pass no judgement on this one, anything goes
}
else if ((modelType == DTDElementDecl::Mixed_Simple)
|| (modelType == DTDElementDecl::Children))
{
// Get the element's content model or fault it in
const XMLContentModel* elemCM = elemDecl->getContentModel();
// Ask it to validate and return its return
return elemCM->validateContent(children, childCount, getScanner()->getEmptyNamespaceId(), indexFailingChild, getScanner()->getMemoryManager());
}
else
{
ThrowXMLwithMemMgr(RuntimeException, XMLExcepts::CM_UnknownCMType, getScanner()->getMemoryManager());
}
// Went ok, so return success
return true;
}
void DTDValidator::faultInAttr(XMLAttr& toFill, const XMLAttDef& attDef) const
{
//
// At this level, we cannot set the URI id. So we just set it to zero
// and leave it at that. The scanner, who called us, will look at the
// prefix we stored (if any), resolve it, and store the URL id if any.
//
const XMLCh* fullName = attDef.getFullName();
const int colonInd = XMLString::indexOf(fullName, chColon);
if (colonInd == -1)
{
// There is no prefix, so we just do a simple and quick setting
toFill.set
(
0
, fullName
, XMLUni::fgZeroLenString
, attDef.getValue()
, attDef.getType()
);
}
else
{
//
// There is a colon, so we have to split apart the name and prefix
// part.
//
XMLCh* tmpNameBuf = XMLString::replicate(fullName, getScanner()->getMemoryManager());
ArrayJanitor<XMLCh> janNameBuf(tmpNameBuf, getScanner()->getMemoryManager());
// Put a null where the colon is, to split it into two strings
tmpNameBuf[colonInd] = chNull;
//
// And now we can set the attribute object with the prefix and name
// parts.
//
toFill.set
(
0
, &tmpNameBuf[colonInd+1]
, tmpNameBuf
, attDef.getValue()
, attDef.getType()
);
}
}
void LogPageStats::run()
{
LogPageStatsHandler h;
BaseScanner* s = getScanner();
s->add_handler(&h);
s->fork();
s->join();
delete s;
}
void LogrecInfo::run()
{
LogrecInfoHandler h;
BaseScanner* s = getScanner();
s->add_handler(&h);
s->fork();
s->join();
delete s;
}
// ---------------------------------------------------------------------------
// XercesDOMParser: Setter methods
// ---------------------------------------------------------------------------
void XercesDOMParser::setErrorHandler(ErrorHandler* const handler)
{
fErrorHandler = handler;
XMLScanner* scanner = getScanner();
if (fErrorHandler) {
scanner->setErrorReporter(this);
scanner->setErrorHandler(fErrorHandler);
}
else {
scanner->setErrorReporter(0);
scanner->setErrorHandler(0);
}
}
void VerifyLog::run()
{
if (verify_alloc) { init_alloc(); }
BaseScanner* s = getScanner();
VerifyHandler h(merge);
if (!merge) {
s->openFileCallback = std::bind(&VerifyHandler::newFile, &h,
std::placeholders::_1);
}
s->add_handler(&h);
s->fork();
s->join();
delete s;
}
XMLFilePos XercesDOMParser::getSrcOffset() const
{
return getScanner()->getSrcOffset();
}
const XMLCh* XercesDOMParser::getURIText(unsigned int uriId) const
{
return getScanner()->getURIText(uriId);
}
Grammar* XercesDOMParser::getRootGrammar()
{
return getScanner()->getRootGrammar();
}
bool XercesDOMParser::isUsingCachedGrammarInParse() const
{
return getScanner()->isUsingCachedGrammarInParse();
}
// ---------------------------------------------------------------------------
// XercesDOMParser: Getter methods
// ---------------------------------------------------------------------------
bool XercesDOMParser::isCachingGrammarFromParse() const
{
return getScanner()->isCachingGrammarFromParse();
}
void XercesDOMParser::resetCachedGrammarPool()
{
getGrammarResolver()->resetCachedGrammar();
getScanner()->resetCachedGrammar();
}
void
DTDValidator::validateAttrValue(const XMLAttDef* attDef
, const XMLCh* const attrValue
, bool preValidation
, const XMLElementDecl*)
{
//
// Get quick refs to lost of of the stuff in the passed objects in
// order to simplify the code below, which will reference them very
// often.
//
const XMLAttDef::AttTypes type = attDef->getType();
const XMLAttDef::DefAttTypes defType = attDef->getDefaultType();
const XMLCh* const valueText = attDef->getValue();
const XMLCh* const fullName = attDef->getFullName();
const XMLCh* const enumList = attDef->getEnumeration();
//
// If the default type is fixed, then make sure the passed value maps
// to the fixed value.
// If during preContentValidation, the value we are validating is the fixed value itself
// so no need to compare.
// Only need to do this for regular attribute value validation
//
if (defType == XMLAttDef::Fixed && !preValidation)
{
if (!XMLString::equals(attrValue, valueText))
emitError(XMLValid::NotSameAsFixedValue, fullName, attrValue, valueText);
}
//
// If its a CDATA attribute, then we are done with any DTD level
// validation else do the rest.
//
if (type == XMLAttDef::CData)
return;
// An empty string cannot be valid for any of the other types
if (!attrValue[0])
{
emitError(XMLValid::InvalidEmptyAttValue, fullName);
return;
}
// See whether we are doing multiple values or not
const bool multipleValues =
(
(type == XMLAttDef::IDRefs)
|| (type == XMLAttDef::Entities)
|| (type == XMLAttDef::NmTokens)
|| (type == XMLAttDef::Notation)
|| (type == XMLAttDef::Enumeration)
);
// And whether we must check for a first name char
const bool firstNameChar =
(
(type == XMLAttDef::ID)
|| (type == XMLAttDef::IDRef)
|| (type == XMLAttDef::IDRefs)
|| (type == XMLAttDef::Entity)
|| (type == XMLAttDef::Entities)
|| (type == XMLAttDef::Notation)
);
// Whether it requires ref checking stuff
const bool isARefType
(
(type == XMLAttDef::ID)
|| (type == XMLAttDef::IDRef)
|| (type == XMLAttDef::IDRefs)
);
// Some trigger flags to avoid issuing redundant errors and whatnot
bool alreadyCapped = false;
//
// Make a copy of the text that we can mangle and get a pointer we can
// move through the value
//
// Use a stack-based buffer, when possible...
XMLCh tempBuffer[100];
XMLCh* pszTmpVal = 0;
ArrayJanitor<XMLCh> janTmpVal(0);
if (XMLString::stringLen(attrValue) < sizeof(tempBuffer) / sizeof(tempBuffer[0]))
{
XMLString::copyString(tempBuffer, attrValue);
pszTmpVal = tempBuffer;
}
else
{
janTmpVal.reset(XMLString::replicate(attrValue, getScanner()->getMemoryManager()), getScanner()->getMemoryManager());
pszTmpVal = janTmpVal.get();
}
XMLCh* valPtr = pszTmpVal;
bool doNamespace = getScanner()->getDoNamespaces();
while (true)
{
//
// Make sure the first character is a valid first name char, i.e.
// if its a Name value. For NmToken values we don't treat the first
// char any differently.
//
if (firstNameChar)
{
// If its not, emit and error but try to keep going
if (!getReaderMgr()->getCurrentReader()->isFirstNameChar(*valPtr))
emitError(XMLValid::AttrValNotName, valPtr, fullName);
valPtr++;
}
// Make sure all the remaining chars are valid name chars
while (*valPtr)
{
//
// If we hit a whitespace, its either a break between two
// or more values, or an error if we have a single value.
//
//
// XML1.0-3rd
//
// [6] Names ::= Name (#x20 Name)*
// [8] Nmtokens ::= Nmtoken (#x20 Nmtoken)*
//
// only and only ONE #x20 is allowed to be the delimiter
//
if (*valPtr==chSpace)
{
if (!multipleValues)
{
emitError(XMLValid::NoMultipleValues, fullName);
return;
}
break;
}
// Now this attribute can be of type
// ID, IDREF, IDREFS, ENTITY, ENTITIES, NOTATION, NMTOKEN, NMTOKENS, ENUMERATION
// All these must be valid XMLName
// If namespace is enabled, colon is not allowed in the first 6
if (doNamespace && *valPtr == chColon && firstNameChar)
emitError(XMLValid::ColonNotValidWithNS);
if (!getReaderMgr()->getCurrentReader()->isNameChar(*valPtr))
{
emitError(XMLValid::AttrValNotName, valPtr, fullName);
return;
}
valPtr++;
}
//
// Cap it off at the current non-name char. If already capped,
// then remember this.
//
if (!(*valPtr))
alreadyCapped = true;
*valPtr = 0;
//
// If this type of attribute requires that we track reference
// stuff, then handle that.
//
if (isARefType)
{
if ((type == XMLAttDef::ID)
|| (type == XMLAttDef::IDRef)
|| (type == XMLAttDef::IDRefs))
{
XMLRefInfo* find = getScanner()->getIDRefList()->get(pszTmpVal);
if (find)
{
if (find->getDeclared() && (type == XMLAttDef::ID))
emitError(XMLValid::ReusedIDValue, pszTmpVal);
}
else
{
find = new (getScanner()->getMemoryManager()) XMLRefInfo
(
pszTmpVal
, false
, false
, getScanner()->getMemoryManager()
);
getScanner()->getIDRefList()->put((void*)find->getRefName(), find);
}
//
// Mark it declared or used, which might be redundant in some cases
// but not worth checking
//
if (type == XMLAttDef::ID)
find->setDeclared(true);
else {
if (!preValidation) {
find->setUsed(true);
}
}
}
}
else if (!preValidation && ((type == XMLAttDef::Entity) || (type == XMLAttDef::Entities)))
{
//
// If its refering to a entity, then look up the name in the
// general entity pool. If not there, then its an error. If its
// not an external unparsed entity, then its an error.
//
// In case of pre-validation, the above errors should be ignored.
//
const XMLEntityDecl* decl = fDTDGrammar->getEntityDecl(pszTmpVal);
if (decl)
{
if (!decl->isUnparsed())
emitError(XMLValid::BadEntityRefAttr, pszTmpVal, fullName);
}
else
{
emitError
(
XMLValid::UnknownEntityRefAttr
, fullName
, pszTmpVal
);
}
}
else if ((type == XMLAttDef::Notation) || (type == XMLAttDef::Enumeration))
{
//
// Make sure that this value maps to one of the enumeration or
// notation values in the enumList parameter. We don't have to
// look it up in the notation pool (if a notation) because we
// will look up the enumerated values themselves. If they are in
// the notation pool (after the DTD is parsed), then obviously
// this value will be legal since it matches one of them.
//
if (!XMLString::isInList(pszTmpVal, enumList))
emitError(XMLValid::DoesNotMatchEnumList, pszTmpVal, fullName);
}
// If not doing multiple values, then we are done
if (!multipleValues)
break;
//
// If we are at the end, then break out now, else move up to the
// next char and update the base pointer.
//
if (alreadyCapped)
break;
valPtr++;
pszTmpVal = valPtr;
}
}
void DTDValidator::preContentValidation(bool
#if defined(MATCH_DEBUG)
reuseGrammar
#endif
,bool validateDefAttr)
{
//
// Lets enumerate all of the elements in the element decl pool
// and put out an error for any that did not get declared.
// We also check all of the attributes as well.
//
NameIdPoolEnumerator<DTDElementDecl> elemEnum = fDTDGrammar->getElemEnumerator();
fDTDGrammar->setValidated(true);
while (elemEnum.hasMoreElements())
{
const DTDElementDecl& curElem = elemEnum.nextElement();
const DTDElementDecl::CreateReasons reason = curElem.getCreateReason();
//
// See if this element decl was ever marked as declared. If
// not, then put out an error. In some cases its just
// a warning, such as being referenced in a content model.
//
if (reason != XMLElementDecl::Declared)
{
if (reason == XMLElementDecl::AttList)
{
getScanner()->emitError
(
XMLErrs::UndeclaredElemInAttList
, curElem.getFullName()
);
}
else if (reason == XMLElementDecl::AsRootElem)
{
// It's ok that the root element is not declared in the DTD
/*
emitError
(
XMLValid::UndeclaredElemInDocType
, curElem.getFullName()
);*/
}
else if (reason == XMLElementDecl::InContentModel)
{
getScanner()->emitError
(
XMLErrs::UndeclaredElemInCM
, curElem.getFullName()
);
}
else
{
#if defined(MATCH_DEBUG)
if(reuseGrammar && reason == XMLElementDecl::JustFaultIn){
}
else
ThrowXMLwithMemMgr(RuntimeException, XMLExcepts::DTD_UnknownCreateReason, getScanner()->getMemoryManager());
#endif
}
}
//
// Check all of the attributes of the current element.
// We check for:
//
// 1) Multiple ID attributes
// 2) That all of the default values of attributes are
// valid for their type.
// 3) That for any notation types, that their lists
// of possible values refer to declared notations.
//
// 4) XML1.0(3rd edition)
//
// Validity constraint: One Notation Per Element Type
// An element type MUST NOT have more than one NOTATION attribute specified.
//
// Validity constraint: No Notation on Empty Element
// For compatibility, an attribute of type NOTATION MUST NOT be declared on an element declared EMPTY.
//
// Validity constraint: No Duplicate Tokens
// The notation names in a single NotationType attribute declaration, as well as
// the NmTokens in a single Enumeration attribute declaration, MUST all be distinct.
//
XMLAttDefList& attDefList = curElem.getAttDefList();
bool seenId = false;
bool seenNOTATION = false;
bool elemEmpty = (curElem.getModelType() == DTDElementDecl::Empty);
for(XMLSize_t i=0; i<attDefList.getAttDefCount(); i++)
{
const XMLAttDef& curAttDef = attDefList.getAttDef(i);
if (curAttDef.getType() == XMLAttDef::ID)
{
if (seenId)
{
emitError
(
XMLValid::MultipleIdAttrs
, curElem.getFullName()
);
break;
}
seenId = true;
}
else if (curAttDef.getType() == XMLAttDef::Notation)
{
if (seenNOTATION)
{
emitError
(
XMLValid::ElemOneNotationAttr
, curElem.getFullName()
);
break;
}
seenNOTATION = true;
// no notation attribute on empty element
if (elemEmpty)
{
emitError
(
XMLValid::EmptyElemNotationAttr
, curElem.getFullName()
, curAttDef.getFullName()
);
break;
}
//go through enumeration list to check
// distinct
// notation declaration
if (curAttDef.getEnumeration())
{
checkTokenList(curAttDef, true);
}
}
else if (curAttDef.getType() == XMLAttDef::Enumeration )
{
//go through enumeration list to check
// distinct only
if (curAttDef.getEnumeration())
{
checkTokenList(curAttDef, false);
}
}
// If it has a default/fixed value, then validate it
if (validateDefAttr && curAttDef.getValue())
{
validateAttrValue
(
&curAttDef
, curAttDef.getValue()
, true
, &curElem
);
}
}
}
//
// And enumerate all of the general entities. If any of them
// reference a notation, then make sure the notation exists.
//
NameIdPoolEnumerator<DTDEntityDecl> entEnum = fDTDGrammar->getEntityEnumerator();
while (entEnum.hasMoreElements())
{
const DTDEntityDecl& curEntity = entEnum.nextElement();
if (!curEntity.getNotationName())
continue;
// It has a notation name, so look it up
if (!fDTDGrammar->getNotationDecl(curEntity.getNotationName()))
{
emitError
(
XMLValid::NotationNotDeclared
, curEntity.getNotationName()
);
}
}
}
void XercesDOMParser::setIgnoreCachedDTD(const bool newValue)
{
getScanner()->setIgnoredCachedDTD(newValue);
}
void XercesDOMParser::useCachedGrammarInParse(const bool newState)
{
if (newState || !getScanner()->isCachingGrammarFromParse())
getScanner()->useCachedGrammarInParse(newState);
}
bool XercesDOMParser::getIgnoreCachedDTD() const
{
return getScanner()->getIgnoreCachedDTD();
}
unsigned int XercesDOMParser::getSrcOffset() const
{
return getScanner()->getSrcOffset();
}
