1 files changed, 269 insertions, 0 deletions
diff --git a/application/basilisk/components/about/AboutRedirector.cpp b/application/basilisk/components/about/AboutRedirector.cpp
new file mode 100644
index 000000000..b77949ea7
--- /dev/null
+++ b/application/basilisk/components/about/AboutRedirector.cpp
@@ -0,0 +1,269 @@
+/* -*- Mode: C++; tab-width: 2; 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/. */
+
+// See also: docshell/base/nsAboutRedirector.cpp
+
+#include "AboutRedirector.h"
+#include "nsNetUtil.h"
+#include "nsIAboutNewTabService.h"
+#include "nsIChannel.h"
+#include "nsIURI.h"
+#include "nsIScriptSecurityManager.h"
+#include "nsIProtocolHandler.h"
+#include "mozilla/ArrayUtils.h"
+#include "nsServiceManagerUtils.h"
+
+namespace mozilla {
+namespace browser {
+
+NS_IMPL_ISUPPORTS(AboutRedirector, nsIAboutModule)
+
+struct RedirEntry {
+  const char* id;
+  const char* url;
+  uint32_t flags;
+};
+
+/*
+  Entries which do not have URI_SAFE_FOR_UNTRUSTED_CONTENT will run with chrome
+  privileges. This is potentially dangerous. Please use
+  URI_SAFE_FOR_UNTRUSTED_CONTENT in the third argument to each map item below
+  unless your about: page really needs chrome privileges. Security review is
+  required before adding new map entries without
+  URI_SAFE_FOR_UNTRUSTED_CONTENT.
+*/
+static RedirEntry kRedirMap[] = {
+  {
+    "basilisk", "chrome://global/content/memoriam.xhtml",
+    nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
+    nsIAboutModule::HIDE_FROM_ABOUTABOUT
+  },
+#ifdef MOZ_SAFE_BROWSING
+  {
+    "blocked", "chrome://browser/content/blockedSite.xhtml",
+    nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
+    nsIAboutModule::URI_CAN_LOAD_IN_CHILD |
+    nsIAboutModule::ALLOW_SCRIPT |
+    nsIAboutModule::HIDE_FROM_ABOUTABOUT
+  },
+#endif
+  {
+    "certerror", "chrome://browser/content/aboutNetError.xhtml",
+    nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
+    nsIAboutModule::URI_CAN_LOAD_IN_CHILD |
+    nsIAboutModule::ALLOW_SCRIPT |
+    nsIAboutModule::HIDE_FROM_ABOUTABOUT
+  },
+  {
+    "tabcrashed", "chrome://browser/content/aboutTabCrashed.xhtml",
+    nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
+    nsIAboutModule::ALLOW_SCRIPT |
+    nsIAboutModule::HIDE_FROM_ABOUTABOUT
+  },
+  {
+    "feeds", "chrome://browser/content/feeds/subscribe.xhtml",
+    nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
+    nsIAboutModule::ALLOW_SCRIPT |
+    nsIAboutModule::HIDE_FROM_ABOUTABOUT
+  },
+  {
+    "privatebrowsing", "chrome://browser/content/aboutPrivateBrowsing.xhtml",
+    nsIAboutModule::URI_MUST_LOAD_IN_CHILD |
+    nsIAboutModule::ALLOW_SCRIPT
+  },
+  { 
+    "rights", "chrome://global/content/aboutRights.xhtml",
+    nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
+    nsIAboutModule::MAKE_LINKABLE |
+    nsIAboutModule::ALLOW_SCRIPT
+  },
+  {
+    "robots", "chrome://browser/content/aboutRobots.xhtml",
+    nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
+    nsIAboutModule::ALLOW_SCRIPT
+  },
+  {
+    "searchreset", "chrome://browser/content/search/searchReset.xhtml",
+    nsIAboutModule::ALLOW_SCRIPT |
+    nsIAboutModule::HIDE_FROM_ABOUTABOUT
+  },
+  {
+    "sessionrestore", "chrome://browser/content/aboutSessionRestore.xhtml",
+    nsIAboutModule::ALLOW_SCRIPT
+  },
+  {
+    "welcomeback", "chrome://browser/content/aboutWelcomeBack.xhtml",
+    nsIAboutModule::ALLOW_SCRIPT
+  },
+  {
+    "sync-tabs", "chrome://browser/content/sync/aboutSyncTabs.xul",
+    nsIAboutModule::ALLOW_SCRIPT
+  },
+  { "home", "chrome://browser/content/abouthome/aboutHome.xhtml",
+    nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
+    nsIAboutModule::URI_MUST_LOAD_IN_CHILD |
+    nsIAboutModule::ALLOW_SCRIPT |
+    // Linkable because of indexeddb use (bug 1228118)
+    nsIAboutModule::MAKE_LINKABLE |
+    nsIAboutModule::ENABLE_INDEXED_DB },
+  {
+    // the newtab's actual URL will be determined when the channel is created
+    "newtab", "about:blank",
+    nsIAboutModule::ALLOW_SCRIPT
+  },
+  {
+    "preferences", "chrome://browser/content/preferences/in-content/preferences.xul",
+    nsIAboutModule::ALLOW_SCRIPT
+  },
+  {
+    "downloads", "chrome://browser/content/downloads/contentAreaDownloadsView.xul",
+    nsIAboutModule::ALLOW_SCRIPT
+  },
+#ifdef MOZ_SERVICES_HEALTHREPORT
+  {
+    "healthreport", "chrome://browser/content/abouthealthreport/abouthealth.xhtml",
+    nsIAboutModule::ALLOW_SCRIPT
+  },
+#endif
+  {
+    "accounts", "chrome://browser/content/aboutaccounts/aboutaccounts.xhtml",
+    nsIAboutModule::ALLOW_SCRIPT
+  },
+  {
+    "reader", "chrome://global/content/reader/aboutReader.html",
+    nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
+    nsIAboutModule::ALLOW_SCRIPT |
+    nsIAboutModule::URI_MUST_LOAD_IN_CHILD |
+    nsIAboutModule::HIDE_FROM_ABOUTABOUT
+  },
+};
+static const int kRedirTotal = ArrayLength(kRedirMap);
+
+static nsAutoCString
+GetAboutModuleName(nsIURI *aURI)
+{
+  nsAutoCString path;
+  aURI->GetPath(path);
+
+  int32_t f = path.FindChar('#');
+  if (f >= 0)
+    path.SetLength(f);
+
+  f = path.FindChar('?');
+  if (f >= 0)
+    path.SetLength(f);
+
+  ToLowerCase(path);
+  return path;
+}
+
+NS_IMETHODIMP
+AboutRedirector::NewChannel(nsIURI* aURI,
+                            nsILoadInfo* aLoadInfo,
+                            nsIChannel** result)
+{
+  NS_ENSURE_ARG_POINTER(aURI);
+  NS_ASSERTION(result, "must not be null");
+
+  nsAutoCString path = GetAboutModuleName(aURI);
+
+  nsresult rv;
+  nsCOMPtr<nsIIOService> ioService = do_GetIOService(&rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  for (int i = 0; i < kRedirTotal; i++) {
+    if (!strcmp(path.get(), kRedirMap[i].id)) {
+      nsAutoCString url;
+
+      if (path.EqualsLiteral("newtab")) {
+        // let the aboutNewTabService decide where to redirect
+        nsCOMPtr<nsIAboutNewTabService> aboutNewTabService =
+          do_GetService("@mozilla.org/browser/aboutnewtab-service;1", &rv);
+        NS_ENSURE_SUCCESS(rv, rv);
+        rv = aboutNewTabService->GetDefaultURL(url);
+        NS_ENSURE_SUCCESS(rv, rv);
+
+        // if about:newtab points to an external resource we have to make sure
+        // the content is signed and trusted
+        bool remoteEnabled = false;
+        rv = aboutNewTabService->GetRemoteEnabled(&remoteEnabled);
+        NS_ENSURE_SUCCESS(rv, rv);
+        if (remoteEnabled) {
+          NS_ENSURE_ARG_POINTER(aLoadInfo);
+          aLoadInfo->SetVerifySignedContent(true);
+        }
+      }
+      // fall back to the specified url in the map
+      if (url.IsEmpty()) {
+        url.AssignASCII(kRedirMap[i].url);
+      }
+
+      nsCOMPtr<nsIChannel> tempChannel;
+      nsCOMPtr<nsIURI> tempURI;
+      rv = NS_NewURI(getter_AddRefs(tempURI), url);
+      NS_ENSURE_SUCCESS(rv, rv);
+
+      // If tempURI links to an external URI (i.e. something other than
+      // chrome:// or resource://) then set the LOAD_REPLACE flag on the
+      // channel which forces the channel owner to reflect the displayed
+      // URL rather then being the systemPrincipal.
+      bool isUIResource = false;
+      rv = NS_URIChainHasFlags(tempURI, nsIProtocolHandler::URI_IS_UI_RESOURCE,
+                               &isUIResource);
+      NS_ENSURE_SUCCESS(rv, rv);
+
+      nsLoadFlags loadFlags = isUIResource
+                    ? static_cast<nsLoadFlags>(nsIChannel::LOAD_NORMAL)
+                    : static_cast<nsLoadFlags>(nsIChannel::LOAD_REPLACE);
+
+      rv = NS_NewChannelInternal(getter_AddRefs(tempChannel),
+                                 tempURI,
+                                 aLoadInfo,
+                                 nullptr, // aLoadGroup
+                                 nullptr, // aCallbacks
+                                 loadFlags);
+      NS_ENSURE_SUCCESS(rv, rv);
+
+      tempChannel->SetOriginalURI(aURI);
+
+      NS_ADDREF(*result = tempChannel);
+      return rv;
+    }
+  }
+
+  return NS_ERROR_ILLEGAL_VALUE;
+}
+
+NS_IMETHODIMP
+AboutRedirector::GetURIFlags(nsIURI *aURI, uint32_t *result)
+{
+  NS_ENSURE_ARG_POINTER(aURI);
+
+  nsAutoCString name = GetAboutModuleName(aURI);
+
+  for (int i = 0; i < kRedirTotal; i++) {
+    if (name.Equals(kRedirMap[i].id)) {
+      *result = kRedirMap[i].flags;
+      return NS_OK;
+    }
+  }
+
+  return NS_ERROR_ILLEGAL_VALUE;
+}
+
+nsresult
+AboutRedirector::Create(nsISupports *aOuter, REFNSIID aIID, void **result)
+{
+  AboutRedirector* about = new AboutRedirector();
+  if (about == nullptr)
+    return NS_ERROR_OUT_OF_MEMORY;
+  NS_ADDREF(about);
+  nsresult rv = about->QueryInterface(aIID, result);
+  NS_RELEASE(about);
+  return rv;
+}
+
+} // namespace browser
+} // namespace mozilla