pjs/extensions/xforms/nsXFormsSchemaValidator.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla XForms Schema Validation.
*
* The Initial Developer of the Original Code is
* IBM Corporation.
* Portions created by the Initial Developer are Copyright (C) 2004
* IBM Corporation. All Rights Reserved.
*
* Contributor(s):
* Doron Rosenberg <doronr@us.ibm.com> (original author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
// XPCOM includes
#include "nsIServiceManager.h"
#include "nsStringAPI.h"
#include "nsXFormsUtils.h"
#include "nsISchemaValidator.h"
#include "nsISchemaDuration.h"
#include "nsXFormsSchemaValidator.h"
#include "nsIDOM3Node.h"
#include "nsComponentManagerUtils.h"
#define NS_SCHEMAVALIDATOR_CONTRACTID "@mozilla.org/schemavalidator;1"
nsXFormsSchemaValidator::nsXFormsSchemaValidator()
{
mSchemaValidator = do_CreateInstance(NS_SCHEMAVALIDATOR_CONTRACTID);
}
nsresult
nsXFormsSchemaValidator::LoadSchema(nsISchema* aSchema)
{
NS_ENSURE_TRUE(mSchemaValidator, NS_ERROR_UNEXPECTED);
return mSchemaValidator->LoadSchema(aSchema);
}
PRBool
nsXFormsSchemaValidator::ValidateString(const nsAString & aValue,
const nsAString & aType,
const nsAString & aNamespace)
{
PRBool isValid = PR_FALSE;
NS_ENSURE_TRUE(mSchemaValidator, isValid);
// if it is the XForms namespace, handle it internally, else delegate to
// nsISchemaValidator
if (aNamespace.EqualsLiteral(NS_NAMESPACE_XFORMS)) {
isValid = ValidateXFormsTypeString(aValue, aType);
} else {
mSchemaValidator->ValidateString(aValue, aType, aNamespace, &isValid);
}
return isValid;
}
PRBool
nsXFormsSchemaValidator::Validate(nsIDOMNode* aElement)
{
PRBool isValid = PR_FALSE;
NS_ENSURE_TRUE(mSchemaValidator, isValid);
mSchemaValidator->Validate(aElement, &isValid);
return isValid;
}
PRBool
nsXFormsSchemaValidator::GetType(const nsAString & aType,
const nsAString & aNamespace,
nsISchemaType **aSchemaType)
{
NS_ENSURE_TRUE(mSchemaValidator, PR_FALSE);
nsresult rv = mSchemaValidator->GetType(aType, aNamespace, aSchemaType);
return NS_SUCCEEDED(rv);
}
// xforms schema types
PRBool
nsXFormsSchemaValidator::ValidateXFormsTypeString(const nsAString & aValue,
const nsAString & aType)
{
if (aType.IsEmpty()) {
return PR_FALSE;
}
PRBool isValid = PR_FALSE;
if (aType.EqualsLiteral("yearMonthDuration")) {
isValid = IsValidSchemaYearMonthDuration(aValue);
} else if (aType.EqualsLiteral("dayTimeDuration")) {
isValid = IsValidSchemaDayTimeDuration(aValue);
} else if (aType.EqualsLiteral("listItem")) {
isValid = IsValidSchemaListItem(aValue);
} else if (aType.EqualsLiteral("listItems")) {
isValid = IsValidSchemaListItems(aValue);
}
return isValid;
}
PRBool
nsXFormsSchemaValidator::IsValidSchemaYearMonthDuration(const nsAString & aValue)
{
PRBool isValid = PR_FALSE;
nsCOMPtr<nsISchemaDuration> duration;
nsresult rv =
mSchemaValidator->ValidateBuiltinTypeDuration(aValue,
getter_AddRefs(duration));
// valid duration
if (NS_SUCCEEDED(rv)) {
// check if no days/hours/minutes/seconds/fractionseconds were set
PRUint32 temp;
double dbltemp;
duration->GetDays(&temp);
if (temp == 0) {
duration->GetHours(&temp);
if (temp == 0) {
duration->GetMinutes(&temp);
if (temp == 0) {
duration->GetSeconds(&temp);
if (temp == 0) {
duration->GetFractionSeconds(&dbltemp);
if (dbltemp == 0) {
isValid = PR_TRUE;
}
}
}
}
}
}
return isValid;
}
PRBool
nsXFormsSchemaValidator::IsValidSchemaDayTimeDuration(const nsAString & aValue)
{
PRBool isValid = PR_FALSE;
nsCOMPtr<nsISchemaDuration> duration;
nsresult rv =
mSchemaValidator->ValidateBuiltinTypeDuration(aValue,
getter_AddRefs(duration));
if (NS_SUCCEEDED(rv)) {
PRUint32 years, months;
duration->GetYears(&years);
duration->GetMonths(&months);
// if years/months exist, invalid
if ((years == 0) && (months == 0))
isValid = PR_TRUE;
}
return isValid;
}
PRBool
nsXFormsSchemaValidator::IsValidSchemaListItem(const nsAString & aValue)
{
PRBool isValid = PR_FALSE;
// like a string, but no whitespace
nsAutoString string(aValue);
if (nsXFormsUtils::FindCharInSet(string, " \t\r\n") == kNotFound) {
mSchemaValidator->ValidateString(aValue, NS_LITERAL_STRING("string"),
NS_LITERAL_STRING("http://www.w3.org/1999/XMLSchema"),
&isValid);
}
return isValid;
}
PRBool
nsXFormsSchemaValidator::IsValidSchemaListItems(const nsAString & aValue)
{
PRBool isValid = PR_FALSE;
// listItem is like a string, but no whitespace. listItems is a whitespace
// delimited list of listItem, so therefore just need to see if it is a valid
// xsd:string
mSchemaValidator->ValidateString(aValue, NS_LITERAL_STRING("string"),
NS_LITERAL_STRING("http://www.w3.org/1999/XMLSchema"),
&isValid);
return isValid;
}