From 65ca41c6c4820c9c7ec555698b9be59d1e9a0cd2 Mon Sep 17 00:00:00 2001
From: "peterv%netscape.com" <peterv%netscape.com>
Date: Tue, 2 Oct 2001 10:02:07 +0000
Subject: [PATCH] Fix for bug 97687 ([serializer]cs/gecko: copying using
 keyboard shortcuts>paste>source pasted {Country=US}) r=heikki, sr=jst.

---
 content/base/public/nsIDocumentEncoder.h   |  6 +++-
 content/base/src/nsDocumentEncoder.cpp     | 33 ++++++++++++++++++++++
 content/base/src/nsPlainTextSerializer.cpp | 21 ++++++++++++++
 3 files changed, 59 insertions(+), 1 deletion(-)

diff --git a/content/base/public/nsIDocumentEncoder.h b/content/base/public/nsIDocumentEncoder.h
index 7aea67dc9bc..503601aab9e 100644
--- a/content/base/public/nsIDocumentEncoder.h
+++ b/content/base/public/nsIDocumentEncoder.h
@@ -148,7 +148,11 @@ public:
     // CR, LF, or CRLF.  If neither of these flags is set, then we
     // will use platform line breaks.
     OutputCRLineBreak = 512,
-    OutputLFLineBreak = 1024
+    OutputLFLineBreak = 1024,
+
+    // Output the content of noscript elements (only for serializing
+    // to plaintext).
+    OutputNoScriptContent = 2048
   };
 
   /**
diff --git a/content/base/src/nsDocumentEncoder.cpp b/content/base/src/nsDocumentEncoder.cpp
index b2d572cb64b..13ed185fbd9 100644
--- a/content/base/src/nsDocumentEncoder.cpp
+++ b/content/base/src/nsDocumentEncoder.cpp
@@ -71,6 +71,9 @@
 #include "nsISupportsArray.h"
 #include "nsIParserService.h"
 #include "nsParserCIID.h"
+#include "nsIScriptContext.h"
+#include "nsIScriptGlobalObject.h"
+#include "nsIScriptSecurityManager.h"
 
 static NS_DEFINE_CID(kCharsetConverterManagerCID,
                      NS_ICHARSETCONVERTERMANAGER_CID);
@@ -195,6 +198,33 @@ nsDocumentEncoder::~nsDocumentEncoder()
 {
 }
 
+static PRBool
+IsScriptEnabled(nsIDocument *aDoc)
+{
+  NS_ENSURE_TRUE(aDoc, PR_TRUE);
+
+  nsCOMPtr<nsIScriptSecurityManager> sm(do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID));
+  NS_ENSURE_TRUE(sm, PR_TRUE);
+
+  nsCOMPtr<nsIPrincipal> principal;
+  aDoc->GetPrincipal(getter_AddRefs(principal));
+  NS_ENSURE_TRUE(principal, PR_TRUE);
+
+  nsCOMPtr<nsIScriptGlobalObject> globalObject;
+  aDoc->GetScriptGlobalObject(getter_AddRefs(globalObject));
+
+  nsCOMPtr<nsIScriptContext> scriptContext;
+  globalObject->GetContext(getter_AddRefs(scriptContext));
+  NS_ENSURE_TRUE(scriptContext, PR_TRUE);
+
+  JSContext* cx = (JSContext *) scriptContext->GetNativeContext();
+  NS_ENSURE_TRUE(cx, PR_TRUE);
+
+  PRBool enabled = PR_TRUE;
+  sm->CanExecuteScripts(cx, principal, &enabled);
+  return enabled;
+}
+
 NS_IMETHODIMP
 nsDocumentEncoder::Init(nsIDocument* aDocument,
                         const nsAReadableString& aMimeType,
@@ -1049,6 +1079,9 @@ nsHTMLCopyEncoder::Init(nsIDocument* aDocument,
   // (see related bugs #57296, #41924, #58646, #32768)
   mFlags = aFlags | OutputAbsoluteLinks;
 
+  if (!IsScriptEnabled(mDocument))
+    mFlags |= OutputNoScriptContent;
+
   nsresult rv;
   mParserService = do_GetService(kParserServiceCID, &rv);
   return rv;
diff --git a/content/base/src/nsPlainTextSerializer.cpp b/content/base/src/nsPlainTextSerializer.cpp
index ee557ef870c..fd08238fe6f 100644
--- a/content/base/src/nsPlainTextSerializer.cpp
+++ b/content/base/src/nsPlainTextSerializer.cpp
@@ -226,6 +226,11 @@ nsPlainTextSerializer::AppendText(nsIDOMText* aText,
                                   PRInt32 aEndOffset, 
                                   nsAWritableString& aStr)
 {
+  if ((mTagStack[mTagStackIndex-1] == eHTMLTag_noscript) &&
+      !(mFlags & nsIDocumentEncoder::OutputNoScriptContent)) {
+    return NS_OK;
+  }
+
   NS_ENSURE_ARG(aText);
 
   nsresult rv = NS_OK;
@@ -388,6 +393,11 @@ nsPlainTextSerializer::CloseContainer(const nsIParserNode& aNode)
 NS_IMETHODIMP 
 nsPlainTextSerializer::AddLeaf(const nsIParserNode& aNode)
 {
+  if ((mTagStack[mTagStackIndex-1] == eHTMLTag_noscript) &&
+      !(mFlags & nsIDocumentEncoder::OutputNoScriptContent)) {
+    return NS_OK;
+  }
+
   eHTMLTags type = (eHTMLTags)aNode.GetNodeType();
   const nsAReadableString& text = aNode.GetText();
 
@@ -494,6 +504,11 @@ nsPlainTextSerializer::DoOpenContainer(PRInt32 aTag)
 {
   eHTMLTags type = (eHTMLTags)aTag;
 
+  if ((mTagStack[mTagStackIndex-1] == eHTMLTag_noscript)  &&
+      !(mFlags & nsIDocumentEncoder::OutputNoScriptContent)) {
+    return NS_OK;
+  }
+
   if (mTagStackIndex < TagStackSize) {
     mTagStack[mTagStackIndex++] = type;
   }
@@ -722,6 +737,12 @@ nsPlainTextSerializer::DoCloseContainer(PRInt32 aTag)
 {
   eHTMLTags type = (eHTMLTags)aTag;
 
+  if ((mTagStack[mTagStackIndex-1] == eHTMLTag_noscript) &&
+      !(mFlags & nsIDocumentEncoder::OutputNoScriptContent) &&
+      (type != eHTMLTag_noscript)) {
+    return NS_OK;
+  }
+
   if (mTagStackIndex > 0) {
     --mTagStackIndex;
   }