caps/OriginAttributes.h
author James Graham <james@hoppipolla.co.uk>
Thu, 05 Sep 2019 18:54:11 +0000
changeset 491901 4fe3084ae3e4ce4f20ebf6c0cf333381ac93a0c8
parent 487597 53bd948e892d744cfee7cc7094dabcb8e292ba8a
child 499088 4a0dc82465d2a8d7ca6bc66371310081d07a774a
permissions -rw-r--r--
Bug 1579168 - Fix updating metadata for results that are expected but have known intermittents, r=maja_zf We were assuming that in the case that the status matched expected we'd have no expected entry in the log data. But actually it was being set to None, so handle both those cases. Differential Revision: https://phabricator.services.mozilla.com/D44874

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 mozilla_OriginAttributes_h
#define mozilla_OriginAttributes_h

#include "mozilla/dom/ChromeUtils.h"
#include "mozilla/dom/ChromeUtilsBinding.h"
#include "mozilla/StaticPrefs_privacy.h"
#include "nsIScriptSecurityManager.h"

namespace mozilla {

class OriginAttributes : public dom::OriginAttributesDictionary {
 public:
  OriginAttributes() {}

  explicit OriginAttributes(bool aInIsolatedMozBrowser) {
    mInIsolatedMozBrowser = aInIsolatedMozBrowser;
  }

  explicit OriginAttributes(const OriginAttributesDictionary& aOther)
      : OriginAttributesDictionary(aOther) {}

  void SetFirstPartyDomain(const bool aIsTopLevelDocument, nsIURI* aURI,
                           bool aForced = false);
  void SetFirstPartyDomain(const bool aIsTopLevelDocument,
                           const nsACString& aDomain);

  enum {
    STRIP_FIRST_PARTY_DOMAIN = 0x01,
    STRIP_USER_CONTEXT_ID = 0x02,
  };

  inline void StripAttributes(uint32_t aFlags) {
    if (aFlags & STRIP_FIRST_PARTY_DOMAIN) {
      mFirstPartyDomain.Truncate();
    }

    if (aFlags & STRIP_USER_CONTEXT_ID) {
      mUserContextId = nsIScriptSecurityManager::DEFAULT_USER_CONTEXT_ID;
    }
  }

  bool operator==(const OriginAttributes& aOther) const {
    return mInIsolatedMozBrowser == aOther.mInIsolatedMozBrowser &&
           mUserContextId == aOther.mUserContextId &&
           mPrivateBrowsingId == aOther.mPrivateBrowsingId &&
           mFirstPartyDomain == aOther.mFirstPartyDomain &&
           mGeckoViewSessionContextId == aOther.mGeckoViewSessionContextId;
  }

  bool operator!=(const OriginAttributes& aOther) const {
    return !(*this == aOther);
  }

  MOZ_MUST_USE bool EqualsIgnoringFPD(const OriginAttributes& aOther) const {
    return mInIsolatedMozBrowser == aOther.mInIsolatedMozBrowser &&
           mUserContextId == aOther.mUserContextId &&
           mPrivateBrowsingId == aOther.mPrivateBrowsingId &&
           mGeckoViewSessionContextId == aOther.mGeckoViewSessionContextId;
  }

  // Serializes/Deserializes non-default values into the suffix format, i.e.
  // |!key1=value1&key2=value2|. If there are no non-default attributes, this
  // returns an empty string.
  void CreateSuffix(nsACString& aStr) const;

  // Don't use this method for anything else than debugging!
  void CreateAnonymizedSuffix(nsACString& aStr) const;

  MOZ_MUST_USE bool PopulateFromSuffix(const nsACString& aStr);

  // Populates the attributes from a string like
  // |uri!key1=value1&key2=value2| and returns the uri without the suffix.
  MOZ_MUST_USE bool PopulateFromOrigin(const nsACString& aOrigin,
                                       nsACString& aOriginNoSuffix);

  // Helper function to match mIsPrivateBrowsing to existing private browsing
  // flags. Once all other flags are removed, this can be removed too.
  void SyncAttributesWithPrivateBrowsing(bool aInPrivateBrowsing);

  // check if "privacy.firstparty.isolate" is enabled.
  static inline bool IsFirstPartyEnabled() {
    return StaticPrefs::privacy_firstparty_isolate();
  }

  // check if the access of window.opener across different FPDs is restricted.
  // We only restrict the access of window.opener when first party isolation
  // is enabled and "privacy.firstparty.isolate.restrict_opener_access" is on.
  static inline bool IsRestrictOpenerAccessForFPI() {
    // We always want to restrict window.opener if first party isolation is
    // disabled.
    return !StaticPrefs::privacy_firstparty_isolate() ||
           StaticPrefs::privacy_firstparty_isolate_restrict_opener_access();
  }

  // Check whether we block the postMessage across different FPDs when the
  // targetOrigin is '*'.
  static inline MOZ_MUST_USE bool IsBlockPostMessageForFPI() {
    return StaticPrefs::privacy_firstparty_isolate() &&
           StaticPrefs::privacy_firstparty_isolate_block_post_message();
  }

  // returns true if the originAttributes suffix has mPrivateBrowsingId value
  // different than 0.
  static bool IsPrivateBrowsing(const nsACString& aOrigin);
};

class OriginAttributesPattern : public dom::OriginAttributesPatternDictionary {
 public:
  // To convert a JSON string to an OriginAttributesPattern, do the following:
  //
  // OriginAttributesPattern pattern;
  // if (!pattern.Init(aJSONString)) {
  //   ... // handle failure.
  // }
  OriginAttributesPattern() {}

  explicit OriginAttributesPattern(
      const OriginAttributesPatternDictionary& aOther)
      : OriginAttributesPatternDictionary(aOther) {}

  // Performs a match of |aAttrs| against this pattern.
  bool Matches(const OriginAttributes& aAttrs) const {
    if (mInIsolatedMozBrowser.WasPassed() &&
        mInIsolatedMozBrowser.Value() != aAttrs.mInIsolatedMozBrowser) {
      return false;
    }

    if (mUserContextId.WasPassed() &&
        mUserContextId.Value() != aAttrs.mUserContextId) {
      return false;
    }

    if (mPrivateBrowsingId.WasPassed() &&
        mPrivateBrowsingId.Value() != aAttrs.mPrivateBrowsingId) {
      return false;
    }

    if (mFirstPartyDomain.WasPassed() &&
        mFirstPartyDomain.Value() != aAttrs.mFirstPartyDomain) {
      return false;
    }

    if (mGeckoViewSessionContextId.WasPassed() &&
        mGeckoViewSessionContextId.Value() !=
            aAttrs.mGeckoViewSessionContextId) {
      return false;
    }

    return true;
  }

  bool Overlaps(const OriginAttributesPattern& aOther) const {
    if (mInIsolatedMozBrowser.WasPassed() &&
        aOther.mInIsolatedMozBrowser.WasPassed() &&
        mInIsolatedMozBrowser.Value() != aOther.mInIsolatedMozBrowser.Value()) {
      return false;
    }

    if (mUserContextId.WasPassed() && aOther.mUserContextId.WasPassed() &&
        mUserContextId.Value() != aOther.mUserContextId.Value()) {
      return false;
    }

    if (mPrivateBrowsingId.WasPassed() &&
        aOther.mPrivateBrowsingId.WasPassed() &&
        mPrivateBrowsingId.Value() != aOther.mPrivateBrowsingId.Value()) {
      return false;
    }

    if (mFirstPartyDomain.WasPassed() && aOther.mFirstPartyDomain.WasPassed() &&
        mFirstPartyDomain.Value() != aOther.mFirstPartyDomain.Value()) {
      return false;
    }

    if (mGeckoViewSessionContextId.WasPassed() &&
        aOther.mGeckoViewSessionContextId.WasPassed() &&
        mGeckoViewSessionContextId.Value() !=
            aOther.mGeckoViewSessionContextId.Value()) {
      return false;
    }

    return true;
  }
};

}  // namespace mozilla

#endif /* mozilla_OriginAttributes_h */