Effects thunderbird builds only.

Unfinished cut at a thunderbird content policy manager which will control whether images are displayed, JS is executed,
etc.

mailnews/base/src/Makefile.in

@@ -123,6 +123,10 @@ ifeq ($(OS_ARCH),OS2)
 CPPSRCS		+= nsMessengerOS2Integration.cpp 
 endif
 
+ifdef MOZ_THUNDERBIRD
+CPPSRCS		+= nsMsgContentPolicy.cpp 
+endif
+
 EXPORTS		= \
 		nsMsgBaseCID.h \
 		nsMessenger.h \
@@ -152,6 +156,10 @@ EXPORTS		= \
 		nsMessengerContentHandler.h \
 		$(NULL)
 
+ifdef MOZ_THUNDERBIRD
+EXPORTS		+= nsMsgContentPolicy.h 
+endif
+
 # we don't want the shared lib, but we want to force the creation of a static lib.
 FORCE_STATIC_LIB = 1
 

mailnews/base/src/nsMsgContentPolicy.cpp

@@ -0,0 +1,136 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: NPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Netscape 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/NPL/
+ *
+ * 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.org code.
+ *
+ * Contributor(s):
+ *   Scott MacGregor <scott@scott-macgregor.org>
+ *
+ *
+ * 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 NPL, 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 NPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsMsgContentPolicy.h"
+#include "nsIScriptGlobalObject.h"
+#include "nsIDocShell.h"
+#include "nsCOMPtr.h"
+#include "nsIDOMWindow.h"
+#include "nsIURI.h"
+
+nsMsgContentPolicy::nsMsgContentPolicy()
+{
+}
+
+nsMsgContentPolicy::~nsMsgContentPolicy()
+{
+}
+
+NS_IMPL_ISUPPORTS1(nsMsgContentPolicy, nsIContentPolicy)
+
+NS_IMETHODIMP
+nsMsgContentPolicy::ShouldLoad(PRInt32 aContentType, nsIURI *aContentLocation, nsISupports *aContext,
+                               nsIDOMWindow *aWindow, PRBool *shouldLoad)
+{
+  nsresult rv = NS_OK;
+  *shouldLoad = PR_TRUE;
+
+  if (!aContentLocation || !aContext) 
+      return rv;
+
+  if (aContentType == nsIContentPolicy::OBJECT)
+  {
+      // currently, mozilla thunderbird does not allow plugins at all. If someone later writes an extension to enable plugins,
+      // we can read a pref here to figure out if we should allow the plugin to load or not.
+  }
+  else if (aContentType == nsIContentPolicy::IMAGE)
+  {
+    PRBool isFtp = PR_FALSE;
+    rv = aContentLocation->SchemeIs("ftp", &isFtp);
+
+    if (isFtp) 
+    {
+      // never allow ftp for mail messages, 
+      // because we don't want to send the users email address
+      // as the anonymous password
+      *shouldLoad = PR_FALSE;
+    }
+    else
+    {
+      PRBool needToCheck = PR_FALSE;
+      rv = aContentLocation->SchemeIs("http", &needToCheck);
+      NS_ENSURE_SUCCESS(rv,rv);
+
+      if (!needToCheck) {
+        rv = aContentLocation->SchemeIs("https", &needToCheck);
+        NS_ENSURE_SUCCESS(rv,rv);
+      }
+
+      if (needToCheck)
+      {
+        // check the 'disable remote images pref' and block the image if appropriate
+        *shouldLoad = PR_FALSE;
+
+        
+        // optionally, if the message is junk, and the user does not want images to load for messages that are junk, then 
+        // block the load.
+      }
+    }
+  }
+
+/*
+    nsCOMPtr<nsIScriptGlobalObject> scriptGlobal = 
+        do_QueryInterface(window);
+    if (!scriptGlobal)
+        return NS_OK;
+
+    nsCOMPtr<nsIDocShell> shell;
+    if (NS_FAILED(scriptGlobal->GetDocShell(getter_AddRefs(shell))))
+        return NS_OK;
+    
+    switch (contentType) {
+      case nsIContentPolicy::OBJECT:
+        return shell->GetAllowPlugins(shouldLoad);
+      case nsIContentPolicy::SCRIPT:
+        return shell->GetAllowJavascript(shouldLoad);
+      case nsIContentPolicy::SUBDOCUMENT:
+        return shell->GetAllowSubframes(shouldLoad);
+      case nsIContentPolicy::IMAGE:
+        return shell->GetAllowImages(shouldLoad);
+      default:
+        return NS_OK;
+    }
+*/
+  return rv;
+}
+
+NS_IMETHODIMP nsMsgContentPolicy::ShouldProcess(PRInt32 contentType,
+                                                nsIURI *contentLocation,
+                                                nsISupports *context,
+                                                nsIDOMWindow *window,
+                                                PRBool *shouldProcess)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+

mailnews/base/src/nsMsgContentPolicy.h

@@ -0,0 +1,57 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: NPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Netscape 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/NPL/
+ *
+ * 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.org code.
+ *
+ * Contributor(s):
+ *   Scott MacGregor <scott@scott-macgregor.org>
+ *
+ *
+ * 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 NPL, 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 NPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef _nsMsgContentPolicy_H_
+#define _nsMsgContentPolicy_H_
+
+#include "nsIContentPolicy.h"
+
+/* DBFCFDF0-4489-4faa-8122-190FD1EFA16C */
+#define NS_MSGCONTENTPOLICY_CID \
+{ 0xdbfcfdf0, 0x4489, 0x4faa, { 0x81, 0x22, 0x19, 0xf, 0xd1, 0xef, 0xa1, 0x6c } }
+
+#define NS_MSGCONTENTPOLICY_CONTRACTID "@mozilla.org/messenger/content-policy;1"
+
+class nsMsgContentPolicy : public nsIContentPolicy
+{
+public:
+    nsMsgContentPolicy();
+    virtual ~nsMsgContentPolicy();
+    
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSICONTENTPOLICY
+};
+
+#endif // _nsMsgContentPolicy_H_
+