Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

5 files changed, 344 insertions, 0 deletions

diff --git a/dom/xslt/xml/moz.build b/dom/xslt/xml/moz.build
new file mode 100644
index 0000000000..a8f33bd350
--- /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 0000000000..b769d6f17e
--- /dev/null
+++ b/dom/xslt/xml/txXMLParser.cpp
@@ -0,0 +1,59 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "mozilla/dom/Document.h"
+#include "nsSyncLoadService.h"
+#include "nsNetUtil.h"
+#include "nsIURI.h"
+
+using namespace mozilla::dom;
+
+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);
+
+  Document* 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.
+  Document* theDocument = nullptr;
+  nsAutoSyncOperation sync(loaderDocument,
+                           SyncOperationBehavior::eSuspendInput);
+  rv = nsSyncLoadService::LoadDocument(
+      documentURI, nsIContentPolicy::TYPE_INTERNAL_XMLHTTPREQUEST,
+      loaderDocument->NodePrincipal(),
+      nsILoadInfo::SEC_REQUIRE_CORS_INHERITS_SEC_CONTEXT, loadGroup,
+      loaderDocument->CookieJarSettings(), 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 0000000000..83f2221506
--- /dev/null
+++ b/dom/xslt/xml/txXMLParser.h
@@ -0,0 +1,27 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 0000000000..0688939ccb
--- /dev/null
+++ b/dom/xslt/xml/txXMLUtils.cpp
@@ -0,0 +1,164 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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, nsAtom** aPrefix,
+                                  nsAtom** 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, nsAtom** aPrefix,
+                              nsAtom** aLocalName) {
+  const char16_t* colon;
+  bool valid = XMLUtils::isValidQName(aName, &colon);
+  if (!valid) {
+    return NS_ERROR_FAILURE;
+  }
+
+  if (colon) {
+    const char16_t* end;
+    aName.EndReading(end);
+
+    *aPrefix = NS_Atomize(Substring(aName.BeginReading(), 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 nsAString& aText) {
+  nsString::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 nsAString& 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 0000000000..e7723fbaca
--- /dev/null
+++ b/dom/xslt/xml/txXMLUtils.h
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 nsAtom;
+
+class XMLUtils {
+ public:
+  static nsresult splitExpatName(const char16_t* aExpatName, nsAtom** aPrefix,
+                                 nsAtom** aLocalName, int32_t* aNameSpaceID);
+  static nsresult splitQName(const nsAString& aName, nsAtom** aPrefix,
+                             nsAtom** 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 nsAString& 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 nsAString& 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