[tbb-commits] [tor-browser/tor-browser-60.1.0esr-8.0-1] Bug 24056: Use en-US strings in HTML forms

[gk at torproject.org]

commit cbb04b72c68272c2de42f157d40cd7d29a6b7b55
Author: Arthur Edelstein <arthuredelstein at gmail.com>
Date:   Mon Aug 6 13:20:40 2018 -0700

    Bug 24056: Use en-US strings in HTML forms
    
    When privacy.spoof_english = 2, we should hide the user's
    locale in content. So we use en-US default strings for HTML
    form elements, such as a Submit button.
    
    We also force GetLocalizedEllipsis() to always return the
    ellipsis used by en-US.
---
 dom/base/nsContentUtils.cpp | 32 +++++++++++++++++++++++++-------
 dom/base/nsContentUtils.h   |  3 +++
 2 files changed, 28 insertions(+), 7 deletions(-)

diff --git a/dom/base/nsContentUtils.cpp b/dom/base/nsContentUtils.cpp
index 8257283e65a2..645f4aee0909 100644
--- a/dom/base/nsContentUtils.cpp
+++ b/dom/base/nsContentUtils.cpp
@@ -317,6 +317,8 @@ bool nsContentUtils::sIsBytecodeCacheEnabled = false;
 int32_t nsContentUtils::sBytecodeCacheStrategy = 0;
 nsCString* nsContentUtils::sJSBytecodeMimeType = nullptr;
 
+int32_t nsContentUtils::sSpoofEnglish = 0;
+
 int32_t nsContentUtils::sPrivacyMaxInnerWidth = 1000;
 int32_t nsContentUtils::sPrivacyMaxInnerHeight = 1000;
 
@@ -737,6 +739,9 @@ nsContentUtils::Init()
   Preferences::AddIntVarCache(&sBytecodeCacheStrategy,
                               "dom.script_loader.bytecode_cache.strategy", 0);
 
+  Preferences::AddIntVarCache(&sSpoofEnglish,
+                              "privacy.spoof_english", 0);
+
   nsDependentCString buildID(mozilla::PlatformBuildID());
   sJSBytecodeMimeType = new nsCString(NS_LITERAL_CSTRING("javascript/moz-bytecode-") + buildID);
 
@@ -4040,7 +4045,7 @@ nsContentUtils::GetEventArgNames(int32_t aNameSpaceID,
   }
 }
 
-static const char gPropertiesFiles[nsContentUtils::PropertiesFile_COUNT][56] = {
+static const char* gPropertiesFiles[nsContentUtils::PropertiesFile_COUNT] = {
   // Must line up with the enum values in |PropertiesFile| enum.
   "chrome://global/locale/css.properties",
   "chrome://global/locale/xbl.properties",
@@ -4055,7 +4060,8 @@ static const char gPropertiesFiles[nsContentUtils::PropertiesFile_COUNT][56] = {
   "chrome://global/locale/commonDialogs.properties",
   "chrome://global/locale/mathml/mathml.properties",
   "chrome://global/locale/security/security.properties",
-  "chrome://necko/locale/necko.properties"
+  "chrome://necko/locale/necko.properties",
+  "resource://gre/chrome/en-US/locale/en-US/global/layout/HtmlForm.properties"
 };
 
 /* static */ nsresult
@@ -4098,6 +4104,11 @@ nsresult nsContentUtils::GetLocalizedString(PropertiesFile aFile,
                                             const char* aKey,
                                             nsAString& aResult)
 {
+  // When we spoof English, use en-US default strings in HTML forms.
+  if (aFile == eFORMS_PROPERTIES && sSpoofEnglish == 2) {
+    aFile = eFORMS_PROPERTIES_en_US;
+  }
+
   nsresult rv = EnsureStringBundle(aFile);
   NS_ENSURE_SUCCESS(rv, rv);
   nsIStringBundle *bundle = sStringBundles[aFile];
@@ -4111,6 +4122,11 @@ nsresult nsContentUtils::FormatLocalizedString(PropertiesFile aFile,
                                                uint32_t aParamsLength,
                                                nsAString& aResult)
 {
+  // When we spoof English, use en-US default strings in HTML forms.
+  if (aFile == eFORMS_PROPERTIES && sSpoofEnglish == 2) {
+    aFile = eFORMS_PROPERTIES_en_US;
+  }
+
   nsresult rv = EnsureStringBundle(aFile);
   NS_ENSURE_SUCCESS(rv, rv);
   nsIStringBundle *bundle = sStringBundles[aFile];
@@ -5722,11 +5738,13 @@ nsContentUtils::GetLocalizedEllipsis()
 {
   static char16_t sBuf[4] = { 0, 0, 0, 0 };
   if (!sBuf[0]) {
-    nsAutoString tmp;
-    Preferences::GetLocalizedString("intl.ellipsis", tmp);
-    uint32_t len = std::min(uint32_t(tmp.Length()),
-                          uint32_t(ArrayLength(sBuf) - 1));
-    CopyUnicodeTo(tmp, 0, sBuf, len);
+    if (sSpoofEnglish != 2) {
+      nsAutoString tmp;
+      Preferences::GetLocalizedString("intl.ellipsis", tmp);
+      uint32_t len = std::min(uint32_t(tmp.Length()),
+                              uint32_t(ArrayLength(sBuf) - 1));
+      CopyUnicodeTo(tmp, 0, sBuf, len);
+    }
     if (!sBuf[0])
       sBuf[0] = char16_t(0x2026);
   }
diff --git a/dom/base/nsContentUtils.h b/dom/base/nsContentUtils.h
index 246dabf340de..135dafdbc052 100644
--- a/dom/base/nsContentUtils.h
+++ b/dom/base/nsContentUtils.h
@@ -1110,6 +1110,7 @@ public:
     eMATHML_PROPERTIES,
     eSECURITY_PROPERTIES,
     eNECKO_PROPERTIES,
+    eFORMS_PROPERTIES_en_US,
     PropertiesFile_COUNT
   };
   static nsresult ReportToConsole(uint32_t aErrorFlags,
@@ -3514,6 +3515,8 @@ private:
 
   static int32_t sInnerOrOuterWindowCount;
   static uint32_t sInnerOrOuterWindowSerialCounter;
+
+  static int32_t sSpoofEnglish;
 };
 
 /* static */ inline