Add m-esr52 at 52.6.0

1 files changed, 195 insertions, 0 deletions

diff --git a/netwerk/dns/nsIDNService.h b/netwerk/dns/nsIDNService.h
new file mode 100644
index 000000000..19aa94da0
--- /dev/null
+++ b/netwerk/dns/nsIDNService.h
@@ -0,0 +1,195 @@
+/* -*- 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/. */
+
+#ifndef nsIDNService_h__
+#define nsIDNService_h__
+
+#include "nsIIDNService.h"
+#include "nsCOMPtr.h"
+#include "nsIObserver.h"
+#include "nsUnicodeScriptCodes.h"
+#include "nsWeakReference.h"
+
+#ifdef IDNA2008
+#include "unicode/uidna.h"
+#else
+#include "nsIUnicodeNormalizer.h"
+#include "nsIDNKitInterface.h"
+#endif
+
+#include "nsString.h"
+
+class nsIPrefBranch;
+
+//-----------------------------------------------------------------------------
+// nsIDNService
+//-----------------------------------------------------------------------------
+
+class nsIDNService final : public nsIIDNService,
+                           public nsIObserver,
+                           public nsSupportsWeakReference
+{
+public:
+  NS_DECL_THREADSAFE_ISUPPORTS
+  NS_DECL_NSIIDNSERVICE
+  NS_DECL_NSIOBSERVER
+
+  nsIDNService();
+
+  nsresult Init();
+
+protected:
+  virtual ~nsIDNService();
+
+private:
+  enum stringPrepFlag {
+    eStringPrepForDNS,
+    eStringPrepForUI,
+    eStringPrepIgnoreErrors
+  };
+
+  /**
+   * Convert the following characters that must be recognized as label
+   *  separators per RFC 3490 to ASCII full stop characters
+   *
+   * U+3002 (ideographic full stop)
+   * U+FF0E (fullwidth full stop)
+   * U+FF61 (halfwidth ideographic full stop)
+   */
+  void normalizeFullStops(nsAString& s);
+
+  /**
+   * Convert and encode a DNS label in ACE/punycode.
+   * @param flag
+   *        if eStringPrepIgnoreErrors, all non-ASCII labels are
+   *           converted to punycode.
+   *        if eStringPrepForUI, only labels that are considered safe
+   *           for display are converted.
+   *           @see isLabelSafe
+   *        if eStringPrepForDNS and stringPrep finds an illegal
+   *           character, returns NS_FAILURE and out is empty
+   */
+  nsresult stringPrepAndACE(const nsAString& in, nsACString& out,
+                            stringPrepFlag flag);
+
+  /**
+   * Convert a DNS label using the stringprep profile defined in RFC 3454
+   */
+  nsresult stringPrep(const nsAString& in, nsAString& out, stringPrepFlag flag);
+
+  /**
+   * Decode an ACE-encoded DNS label to UTF-8
+   *
+   * @param flag
+   *        if eStringPrepForUI and the label is not considered safe to
+   *           display, the output is the same as the input
+   *        @see isLabelSafe
+   */
+  nsresult decodeACE(const nsACString& in, nsACString& out,
+                     stringPrepFlag flag);
+
+  /**
+   * Convert complete domain names between UTF8 and ACE and vice versa
+   *
+   * @param flag is passed to decodeACE or stringPrepAndACE for each
+   *  label individually, so the output may contain some labels in
+   *  punycode and some in UTF-8
+   */
+  nsresult UTF8toACE(const nsACString& input, nsACString& ace,
+                     stringPrepFlag flag);
+  nsresult ACEtoUTF8(const nsACString& input, nsACString& _retval,
+                     stringPrepFlag flag);
+
+  bool isInWhitelist(const nsACString &host);
+  void prefsChanged(nsIPrefBranch *prefBranch, const char16_t *pref);
+
+  /**
+   * Determine whether a label is considered safe to display to the user
+   * according to the algorithm defined in UTR 39 and the profile
+   * selected in mRestrictionProfile.
+   *
+   * For the ASCII-only profile, returns false for all labels containing
+   * non-ASCII characters.
+   *
+   * For the other profiles, returns false for labels containing any of
+   * the following:
+   *
+   *  Characters in scripts other than the "recommended scripts" and
+   *   "aspirational scripts" defined in
+   *   http://www.unicode.org/reports/tr31/#Table_Recommended_Scripts
+   *   and http://www.unicode.org/reports/tr31/#Aspirational_Use_Scripts
+   *  This includes codepoints that are not defined as Unicode
+   *   characters
+   *
+   *  Illegal combinations of scripts (@see illegalScriptCombo)
+   *
+   *  Numbers from more than one different numbering system
+   *
+   *  Sequences of the same non-spacing mark
+   *
+   *  Both simplified-only and traditional-only Chinese characters
+   *   XXX this test was disabled by bug 857481
+   */
+  bool isLabelSafe(const nsAString &label);
+
+  /**
+   * Determine whether a combination of scripts in a single label is
+   * permitted according to the algorithm defined in UTR 39 and the
+   * profile selected in mRestrictionProfile.
+   *
+   * For the "Highly restrictive" profile, all characters in each
+   * identifier must be from a single script, or from the combinations:
+   *  Latin + Han + Hiragana + Katakana;
+   *  Latin + Han + Bopomofo; or
+   *  Latin + Han + Hangul
+   *
+   * For the "Moderately restrictive" profile, Latin is also allowed
+   *  with other scripts except Cyrillic and Greek
+   */
+  bool illegalScriptCombo(mozilla::unicode::Script script,
+                          int32_t& savedScript);
+
+#ifdef IDNA2008
+  /**
+   * Convert a DNS label from ASCII to Unicode using IDNA2008
+   */
+  nsresult IDNA2008ToUnicode(const nsACString& input, nsAString& output);
+
+  /**
+   * Convert a DNS label to a normalized form conforming to IDNA2008
+   */
+  nsresult IDNA2008StringPrep(const nsAString& input, nsAString& output,
+                              stringPrepFlag flag);
+
+  UIDNA* mIDNA;
+#else
+  idn_nameprep_t mNamePrepHandle;
+  nsCOMPtr<nsIUnicodeNormalizer> mNormalizer;
+#endif
+  nsXPIDLString mIDNBlacklist;
+
+  /**
+   * Flag set by the pref network.IDN_show_punycode. When it is true,
+   * IDNs containing non-ASCII characters are always displayed to the
+   * user in punycode
+   */
+  bool mShowPunycode;
+
+  /**
+   * Restriction-level Detection profiles defined in UTR 39
+   * http://www.unicode.org/reports/tr39/#Restriction_Level_Detection,
+   * and selected by the pref network.IDN.restriction_profile
+   */
+   enum restrictionProfile {
+    eASCIIOnlyProfile,
+    eHighlyRestrictiveProfile,
+    eModeratelyRestrictiveProfile
+  };
+  restrictionProfile mRestrictionProfile;
+  nsCOMPtr<nsIPrefBranch> mIDNWhitelistPrefBranch;
+  bool mIDNUseWhitelist;
+};
+
+#endif  // nsIDNService_h__