Add m-esr52 at 52.6.0

5 files changed, 370 insertions, 0 deletions

diff --git a/dom/xslt/xml/moz.build b/dom/xslt/xml/moz.build
new file mode 100644
index 000000000..f20a27bba
--- /dev/null
+++ b/dom/xslt/xml/moz.build
@@ -0,0 +1,19 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# 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/.
+
+UNIFIED_SOURCES += [
+    'txXMLParser.cpp',
+    'txXMLUtils.cpp',
+]
+
+LOCAL_INCLUDES += [
+    '../base',
+    '../xpath',
+    '../xslt',
+    '/dom/base',
+]
+
+FINAL_LIBRARY = 'xul'
diff --git a/dom/xslt/xml/txXMLParser.cpp b/dom/xslt/xml/txXMLParser.cpp
new file mode 100644
index 000000000..0cf281f2c
--- /dev/null
+++ b/dom/xslt/xml/txXMLParser.cpp
@@ -0,0 +1,62 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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/. */
+
+#include "txXMLParser.h"
+#include "txURIUtils.h"
+#include "txXPathTreeWalker.h"
+
+#include "nsIDocument.h"
+#include "nsIDOMDocument.h"
+#include "nsSyncLoadService.h"
+#include "nsNetUtil.h"
+#include "nsIURI.h"
+#include "nsIPrincipal.h"
+
+nsresult
+txParseDocumentFromURI(const nsAString& aHref,
+                       const txXPathNode& aLoader,
+                       nsAString& aErrMsg,
+                       txXPathNode** aResult)
+{
+    NS_ENSURE_ARG_POINTER(aResult);
+    *aResult = nullptr;
+    nsCOMPtr<nsIURI> documentURI;
+    nsresult rv = NS_NewURI(getter_AddRefs(documentURI), aHref);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    nsIDocument* loaderDocument = txXPathNativeNode::getDocument(aLoader);
+
+    nsCOMPtr<nsILoadGroup> loadGroup = loaderDocument->GetDocumentLoadGroup();
+
+    // For the system principal loaderUri will be null here, which is good
+    // since that means that chrome documents can load any uri.
+
+    // Raw pointer, we want the resulting txXPathNode to hold a reference to
+    // the document.
+    nsIDOMDocument* theDocument = nullptr;
+    nsAutoSyncOperation sync(loaderDocument);
+    rv = nsSyncLoadService::LoadDocument(documentURI,
+                                         nsIContentPolicy::TYPE_INTERNAL_XMLHTTPREQUEST,
+                                         loaderDocument->NodePrincipal(),
+                                         nsILoadInfo::SEC_REQUIRE_CORS_DATA_INHERITS,
+                                         loadGroup, true,
+                                         loaderDocument->GetReferrerPolicy(),
+                                         &theDocument);
+
+    if (NS_FAILED(rv)) {
+        aErrMsg.AppendLiteral("Document load of ");
+        aErrMsg.Append(aHref);
+        aErrMsg.AppendLiteral(" failed.");
+        return NS_FAILED(rv) ? rv : NS_ERROR_FAILURE;
+    }
+
+    *aResult = txXPathNativeNode::createXPathNode(theDocument);
+    if (!*aResult) {
+        NS_RELEASE(theDocument);
+        return NS_ERROR_FAILURE;
+    }
+
+    return NS_OK;
+}
diff --git a/dom/xslt/xml/txXMLParser.h b/dom/xslt/xml/txXMLParser.h
new file mode 100644
index 000000000..fea9defe3
--- /dev/null
+++ b/dom/xslt/xml/txXMLParser.h
@@ -0,0 +1,26 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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/. */
+
+#ifndef MITRE_XMLPARSER_H
+#define MITRE_XMLPARSER_H
+
+#include "txCore.h"
+
+class txXPathNode;
+
+/**
+ * API to load XML files into DOM datastructures.
+ * Parsing is either done by expat, or by expat via the syncloaderservice
+ */
+
+/**
+ * Parse a document from the aHref location, with referrer URI on behalf
+ * of the document aLoader.
+ */
+extern "C" nsresult
+txParseDocumentFromURI(const nsAString& aHref, const txXPathNode& aLoader,
+                       nsAString& aErrMsg, txXPathNode** aResult);
+
+#endif
diff --git a/dom/xslt/xml/txXMLUtils.cpp b/dom/xslt/xml/txXMLUtils.cpp
new file mode 100644
index 000000000..58687568d
--- /dev/null
+++ b/dom/xslt/xml/txXMLUtils.cpp
@@ -0,0 +1,181 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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/. */
+
+/*
+ * XML utility classes
+ */
+
+#include "txXMLUtils.h"
+#include "nsString.h"
+#include "nsReadableUtils.h"
+#include "nsGkAtoms.h"
+#include "txStringUtils.h"
+#include "txNamespaceMap.h"
+#include "txXPathTreeWalker.h"
+#include "nsContentUtils.h"
+
+//------------------------------/
+//- Implementation of XMLUtils -/
+//------------------------------/
+
+// static
+nsresult
+XMLUtils::splitExpatName(const char16_t *aExpatName, nsIAtom **aPrefix,
+                         nsIAtom **aLocalName, int32_t* aNameSpaceID)
+{
+    /**
+     *  Expat can send the following:
+     *    localName
+     *    namespaceURI<separator>localName
+     *    namespaceURI<separator>localName<separator>prefix
+     */
+
+    const char16_t *uriEnd = nullptr;
+    const char16_t *nameEnd = nullptr;
+    const char16_t *pos;
+    for (pos = aExpatName; *pos; ++pos) {
+        if (*pos == kExpatSeparatorChar) {
+            if (uriEnd) {
+                nameEnd = pos;
+            }
+            else {
+                uriEnd = pos;
+            }
+        }
+    }
+
+    const char16_t *nameStart;
+    if (uriEnd) {
+        *aNameSpaceID =
+            txNamespaceManager::getNamespaceID(nsDependentSubstring(aExpatName,
+                                                                    uriEnd));
+        if (*aNameSpaceID == kNameSpaceID_Unknown) {
+            return NS_ERROR_FAILURE;
+        }
+
+        nameStart = (uriEnd + 1);
+        if (nameEnd)  {
+            const char16_t *prefixStart = nameEnd + 1;
+            *aPrefix = NS_Atomize(Substring(prefixStart, pos)).take();
+            if (!*aPrefix) {
+                return NS_ERROR_OUT_OF_MEMORY;
+            }
+        }
+        else {
+            nameEnd = pos;
+            *aPrefix = nullptr;
+        }
+    }
+    else {
+        *aNameSpaceID = kNameSpaceID_None;
+        nameStart = aExpatName;
+        nameEnd = pos;
+        *aPrefix = nullptr;
+    }
+
+    *aLocalName = NS_Atomize(Substring(nameStart, nameEnd)).take();
+
+    return *aLocalName ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
+}
+
+nsresult
+XMLUtils::splitQName(const nsAString& aName, nsIAtom** aPrefix,
+                     nsIAtom** aLocalName)
+{
+    const nsAFlatString& qName = PromiseFlatString(aName);
+    const char16_t* colon;
+    bool valid = XMLUtils::isValidQName(qName, &colon);
+    if (!valid) {
+        return NS_ERROR_FAILURE;
+    }
+
+    if (colon) {
+        const char16_t *end;
+        qName.EndReading(end);
+
+        *aPrefix = NS_Atomize(Substring(qName.get(), colon)).take();
+        *aLocalName = NS_Atomize(Substring(colon + 1, end)).take();
+    }
+    else {
+        *aPrefix = nullptr;
+        *aLocalName = NS_Atomize(aName).take();
+    }
+
+    return NS_OK;
+}
+
+/**
+ * Returns true if the given string has only whitespace characters
+ */
+bool XMLUtils::isWhitespace(const nsAFlatString& aText)
+{
+    nsAFlatString::const_char_iterator start, end;
+    aText.BeginReading(start);
+    aText.EndReading(end);
+    for ( ; start != end; ++start) {
+        if (!isWhitespace(*start)) {
+            return false;
+        }
+    }
+    return true;
+}
+
+/**
+ * Normalizes the value of a XML processing instruction
+**/
+void XMLUtils::normalizePIValue(nsAString& piValue)
+{
+    nsAutoString origValue(piValue);
+    uint32_t origLength = origValue.Length();
+    uint32_t conversionLoop = 0;
+    char16_t prevCh = 0;
+    piValue.Truncate();
+
+    while (conversionLoop < origLength) {
+        char16_t ch = origValue.CharAt(conversionLoop);
+        switch (ch) {
+            case '>':
+            {
+                if (prevCh == '?') {
+                    piValue.Append(char16_t(' '));
+                }
+                break;
+            }
+            default:
+            {
+                break;
+            }
+        }
+        piValue.Append(ch);
+        prevCh = ch;
+        ++conversionLoop;
+    }
+}
+
+//static
+bool XMLUtils::isValidQName(const nsAFlatString& aQName,
+                            const char16_t** aColon)
+{
+  return NS_SUCCEEDED(nsContentUtils::CheckQName(aQName, true, aColon));
+}
+
+//static
+bool XMLUtils::getXMLSpacePreserve(const txXPathNode& aNode)
+{
+    nsAutoString value;
+    txXPathTreeWalker walker(aNode);
+    do {
+        if (walker.getAttr(nsGkAtoms::space, kNameSpaceID_XML, value)) {
+            if (TX_StringEqualsAtom(value, nsGkAtoms::preserve)) {
+                return true;
+            }
+            if (TX_StringEqualsAtom(value, nsGkAtoms::_default)) {
+                return false;
+            }
+        }
+    } while (walker.moveToParent());
+
+    return false;
+}
diff --git a/dom/xslt/xml/txXMLUtils.h b/dom/xslt/xml/txXMLUtils.h
new file mode 100644
index 000000000..755d7410d
--- /dev/null
+++ b/dom/xslt/xml/txXMLUtils.h
@@ -0,0 +1,82 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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/. */
+
+/**
+ * An XML Utility class
+**/
+
+#ifndef MITRE_XMLUTILS_H
+#define MITRE_XMLUTILS_H
+
+#include "txCore.h"
+#include "nsDependentSubstring.h"
+#include "txXPathNode.h"
+
+#define kExpatSeparatorChar 0xFFFF
+
+extern "C" int MOZ_XMLIsLetter(const char* ptr);
+extern "C" int MOZ_XMLIsNCNameChar(const char* ptr);
+
+class nsIAtom;
+
+class XMLUtils {
+
+public:
+    static nsresult splitExpatName(const char16_t *aExpatName,
+                                   nsIAtom **aPrefix, nsIAtom **aLocalName,
+                                   int32_t* aNameSpaceID);
+    static nsresult splitQName(const nsAString& aName, nsIAtom** aPrefix,
+                               nsIAtom** aLocalName);
+
+    /*
+     * Returns true if the given character is whitespace.
+     */
+    static bool isWhitespace(const char16_t& aChar)
+    {
+        return (aChar <= ' ' &&
+                (aChar == ' ' || aChar == '\r' ||
+                 aChar == '\n'|| aChar == '\t'));
+    }
+
+    /**
+     * Returns true if the given string has only whitespace characters
+     */
+    static bool isWhitespace(const nsAFlatString& aText);
+
+    /**
+     * Normalizes the value of a XML processingInstruction
+    **/
+    static void normalizePIValue(nsAString& attValue);
+
+    /**
+     * Returns true if the given string is a valid XML QName
+     */
+    static bool isValidQName(const nsAFlatString& aQName,
+                             const char16_t** aColon);
+
+    /**
+     * Returns true if the given character represents an Alpha letter
+     */
+    static bool isLetter(char16_t aChar)
+    {
+        return !!MOZ_XMLIsLetter(reinterpret_cast<const char*>(&aChar));
+    }   
+
+    /**
+     * Returns true if the given character is an allowable NCName character
+     */
+    static bool isNCNameChar(char16_t aChar)
+    {
+        return !!MOZ_XMLIsNCNameChar(reinterpret_cast<const char*>(&aChar));
+    }
+
+    /*
+     * Walks up the document tree and returns true if the closest xml:space
+     * attribute is "preserve"
+     */
+    static bool getXMLSpacePreserve(const txXPathNode& aNode);
+};
+
+#endif