@@ -1,956 +0,0 @@
using System ;
using System.Collections.Generic ;
using System.Diagnostics ;
using System.Linq ;
using Newtonsoft.Json ;
using Formatting = System . Xml . Formatting ;
namespace Kp2aAutofillParser
{
public class W3cHints
{
// Supported W3C autofill tokens (https://html.spec.whatwg.org/multipage/forms.html#autofill)
public const string HONORIFIC_PREFIX = "honorific-prefix" ;
public const string NAME = "name" ;
public const string GIVEN_NAME = "given-name" ;
public const string ADDITIONAL_NAME = "additional-name" ;
public const string FAMILY_NAME = "family-name" ;
public const string HONORIFIC_SUFFIX = "honorific-suffix" ;
public const string USERNAME = "username" ;
public const string NEW_PASSWORD = "new-password" ;
public const string CURRENT_PASSWORD = "current-password" ;
public const string ORGANIZATION_TITLE = "organization-title" ;
public const string ORGANIZATION = "organization" ;
public const string STREET_ADDRESS = "street-address" ;
public const string ADDRESS_LINE1 = "address-line1" ;
public const string ADDRESS_LINE2 = "address-line2" ;
public const string ADDRESS_LINE3 = "address-line3" ;
public const string ADDRESS_LEVEL4 = "address-level4" ;
public const string ADDRESS_LEVEL3 = "address-level3" ;
public const string ADDRESS_LEVEL2 = "address-level2" ;
public const string ADDRESS_LEVEL1 = "address-level1" ;
public const string COUNTRY = "country" ;
public const string COUNTRY_NAME = "country-name" ;
public const string POSTAL_CODE = "postal-code" ;
public const string CC_NAME = "cc-name" ;
public const string CC_GIVEN_NAME = "cc-given-name" ;
public const string CC_ADDITIONAL_NAME = "cc-additional-name" ;
public const string CC_FAMILY_NAME = "cc-family-name" ;
public const string CC_NUMBER = "cc-number" ;
public const string CC_EXPIRATION = "cc-exp" ;
public const string CC_EXPIRATION_MONTH = "cc-exp-month" ;
public const string CC_EXPIRATION_YEAR = "cc-exp-year" ;
public const string CC_CSC = "cc-csc" ;
public const string CC_TYPE = "cc-type" ;
public const string TRANSACTION_CURRENCY = "transaction-currency" ;
public const string TRANSACTION_AMOUNT = "transaction-amount" ;
public const string LANGUAGE = "language" ;
public const string BDAY = "bday" ;
public const string BDAY_DAY = "bday-day" ;
public const string BDAY_MONTH = "bday-month" ;
public const string BDAY_YEAR = "bday-year" ;
public const string SEX = "sex" ;
public const string URL = "url" ;
public const string PHOTO = "photo" ;
// Optional W3C prefixes
public const string PREFIX_SECTION = "section-" ;
public const string SHIPPING = "shipping" ;
public const string BILLING = "billing" ;
// W3C prefixes below...
public const string PREFIX_HOME = "home" ;
public const string PREFIX_WORK = "work" ;
public const string PREFIX_FAX = "fax" ;
public const string PREFIX_PAGER = "pager" ;
// ... require those suffix
public const string TEL = "tel" ;
public const string TEL_COUNTRY_CODE = "tel-country-code" ;
public const string TEL_NATIONAL = "tel-national" ;
public const string TEL_AREA_CODE = "tel-area-code" ;
public const string TEL_LOCAL = "tel-local" ;
public const string TEL_LOCAL_PREFIX = "tel-local-prefix" ;
public const string TEL_LOCAL_SUFFIX = "tel-local-suffix" ;
public const string TEL_EXTENSION = "tel_extension" ;
public const string EMAIL = "email" ;
public const string IMPP = "impp" ;
private W3cHints ( )
{
}
public static bool isW3cSectionPrefix ( string hint )
{
return hint . ToLower ( ) . StartsWith ( W3cHints . PREFIX_SECTION ) ;
}
public static bool isW3cAddressType ( string hint )
{
switch ( hint . ToLower ( ) )
{
case W3cHints . SHIPPING :
case W3cHints . BILLING :
return true ;
}
return false ;
}
public static bool isW3cTypePrefix ( string hint )
{
switch ( hint . ToLower ( ) )
{
case W3cHints . PREFIX_WORK :
case W3cHints . PREFIX_FAX :
case W3cHints . PREFIX_HOME :
case W3cHints . PREFIX_PAGER :
return true ;
}
return false ;
}
public static bool isW3cTypeHint ( string hint )
{
switch ( hint . ToLower ( ) )
{
case W3cHints . TEL :
case W3cHints . TEL_COUNTRY_CODE :
case W3cHints . TEL_NATIONAL :
case W3cHints . TEL_AREA_CODE :
case W3cHints . TEL_LOCAL :
case W3cHints . TEL_LOCAL_PREFIX :
case W3cHints . TEL_LOCAL_SUFFIX :
case W3cHints . TEL_EXTENSION :
case W3cHints . EMAIL :
case W3cHints . IMPP :
return true ;
}
return false ;
}
}
/// <summary>
/// FilledAutofillFieldCollection is the model that holds all of the data on a client app's page,
/// plus the dataset name associated with it.
/// </summary>
public class FilledAutofillFieldCollection < FieldT > where FieldT : InputField
{
public Dictionary < string , FilledAutofillField < FieldT > > HintMap { get ; }
public string DatasetName { get ; set ; }
public FilledAutofillFieldCollection ( Dictionary < string , FilledAutofillField < FieldT > > hintMap , string datasetName = "" )
{
//recreate hint map making sure we compare case insensitive
HintMap = BuildHintMap ( ) ;
foreach ( var p in hintMap )
HintMap . Add ( p . Key , p . Value ) ;
DatasetName = datasetName ;
}
public FilledAutofillFieldCollection ( ) : this ( BuildHintMap ( ) )
{ }
private static Dictionary < string , FilledAutofillField < FieldT > > BuildHintMap ( )
{
return new Dictionary < string , FilledAutofillField < FieldT > > ( StringComparer . OrdinalIgnoreCase ) ;
}
/// <summary>
/// Adds a filledAutofillField to the collection, indexed by all of its hints.
/// </summary>
/// <returns>The add.</returns>
/// <param name="filledAutofillField">Filled autofill field.</param>
public void Add ( FilledAutofillField < FieldT > filledAutofillField )
{
foreach ( string hint in filledAutofillField . AutofillHints )
{
if ( AutofillHintsHelper . IsSupportedHint ( hint ) )
{
HintMap . TryAdd ( hint , filledAutofillField ) ;
}
}
}
/// <summary>
/// Takes in a list of autofill hints (`autofillHints`), usually associated with a View or set of
/// Views. Returns whether any of the filled fields on the page have at least 1 of these
/// `autofillHint`s.
/// </summary>
/// <returns><c>true</c>, if with hints was helpsed, <c>false</c> otherwise.</returns>
/// <param name="autofillHints">Autofill hints.</param>
public bool HelpsWithHints ( List < string > autofillHints )
{
for ( int i = 0 ; i < autofillHints . Count ; i + + )
{
var autofillHint = autofillHints [ i ] ;
if ( HintMap . ContainsKey ( autofillHint ) & & ! HintMap [ autofillHint ] . IsNull ( ) )
{
return true ;
}
}
return false ;
}
}
public class AutofillHintsHelper
{
public const string AutofillHint2faAppOtp = "2faAppOTPCode" ;
public const string AutofillHintBirthDateDay = "birthDateDay" ;
public const string AutofillHintBirthDateFull = "birthDateFull" ;
public const string AutofillHintBirthDateMonth = "birthDateMonth" ;
public const string AutofillHintBirthDateYear = "birthDateYear" ;
public const string AutofillHintCreditCardExpirationDate = "creditCardExpirationDate" ;
public const string AutofillHintCreditCardExpirationDay = "creditCardExpirationDay" ;
public const string AutofillHintCreditCardExpirationMonth = "creditCardExpirationMonth" ;
public const string AutofillHintCreditCardExpirationYear = "creditCardExpirationYear" ;
public const string AutofillHintCreditCardNumber = "creditCardNumber" ;
public const string AutofillHintCreditCardSecurityCode = "creditCardSecurityCode" ;
public const string AutofillHintEmailAddress = "emailAddress" ;
public const string AutofillHintEmailOtp = "emailOTPCode" ;
public const string AutofillHintGender = "gender" ;
public const string AutofillHintName = "name" ;
public const string AutofillHintNewPassword = "newPassword" ;
public const string AutofillHintNewUsername = "newUsername" ;
public const string AutofillHintNotApplicable = "notApplicable" ;
public const string AutofillHintPassword = "password" ;
public const string AutofillHintPersonName = "personName" ;
public const string AutofillHintPersonNameFAMILY = "personFamilyName" ;
public const string AutofillHintPersonNameGIVEN = "personGivenName" ;
public const string AutofillHintPersonNameMIDDLE = "personMiddleName" ;
public const string AutofillHintPersonNameMIDDLE_INITIAL = "personMiddleInitial" ;
public const string AutofillHintPersonNamePREFIX = "personNamePrefix" ;
public const string AutofillHintPersonNameSUFFIX = "personNameSuffix" ;
public const string AutofillHintPhone = "phone" ;
public const string AutofillHintPhoneContryCode = "phoneCountryCode" ;
public const string AutofillHintPostalAddressAPT_NUMBER = "aptNumber" ;
public const string AutofillHintPostalAddressCOUNTRY = "addressCountry" ;
public const string AutofillHintPostalAddressDEPENDENT_LOCALITY = "dependentLocality" ;
public const string AutofillHintPostalAddressEXTENDED_ADDRESS = "extendedAddress" ;
public const string AutofillHintPostalAddressEXTENDED_POSTAL_CODE = "extendedPostalCode" ;
public const string AutofillHintPostalAddressLOCALITY = "addressLocality" ;
public const string AutofillHintPostalAddressREGION = "addressRegion" ;
public const string AutofillHintPostalAddressSTREET_ADDRESS = "streetAddress" ;
public const string AutofillHintPostalCode = "postalCode" ;
public const string AutofillHintPromoCode = "promoCode" ;
public const string AutofillHintSMS_OTP = "smsOTPCode" ;
public const string AutofillHintUPI_VPA = "upiVirtualPaymentAddress" ;
public const string AutofillHintUsername = "username" ;
public const string AutofillHintWifiPassword = "wifiPassword" ;
public const string AutofillHintPhoneNational = "phoneNational" ;
public const string AutofillHintPhoneNumber = "phoneNumber" ;
public const string AutofillHintPhoneNumberDevice = "phoneNumberDevice" ;
public const string AutofillHintPostalAddress = "postalAddress" ;
private static readonly HashSet < string > _allSupportedHints = new HashSet < string > ( StringComparer . OrdinalIgnoreCase )
{
AutofillHintCreditCardExpirationDate ,
AutofillHintCreditCardExpirationDay ,
AutofillHintCreditCardExpirationMonth ,
AutofillHintCreditCardExpirationYear ,
AutofillHintCreditCardNumber ,
AutofillHintCreditCardSecurityCode ,
AutofillHintEmailAddress ,
AutofillHintPhone ,
AutofillHintName ,
AutofillHintPassword ,
AutofillHintPostalAddress ,
AutofillHintPostalCode ,
AutofillHintUsername ,
W3cHints . HONORIFIC_PREFIX ,
W3cHints . NAME ,
W3cHints . GIVEN_NAME ,
W3cHints . ADDITIONAL_NAME ,
W3cHints . FAMILY_NAME ,
W3cHints . HONORIFIC_SUFFIX ,
W3cHints . USERNAME ,
W3cHints . NEW_PASSWORD ,
W3cHints . CURRENT_PASSWORD ,
W3cHints . ORGANIZATION_TITLE ,
W3cHints . ORGANIZATION ,
W3cHints . STREET_ADDRESS ,
W3cHints . ADDRESS_LINE1 ,
W3cHints . ADDRESS_LINE2 ,
W3cHints . ADDRESS_LINE3 ,
W3cHints . ADDRESS_LEVEL4 ,
W3cHints . ADDRESS_LEVEL3 ,
W3cHints . ADDRESS_LEVEL2 ,
W3cHints . ADDRESS_LEVEL1 ,
W3cHints . COUNTRY ,
W3cHints . COUNTRY_NAME ,
W3cHints . POSTAL_CODE ,
W3cHints . CC_NAME ,
W3cHints . CC_GIVEN_NAME ,
W3cHints . CC_ADDITIONAL_NAME ,
W3cHints . CC_FAMILY_NAME ,
W3cHints . CC_NUMBER ,
W3cHints . CC_EXPIRATION ,
W3cHints . CC_EXPIRATION_MONTH ,
W3cHints . CC_EXPIRATION_YEAR ,
W3cHints . CC_CSC ,
W3cHints . CC_TYPE ,
W3cHints . TRANSACTION_CURRENCY ,
W3cHints . TRANSACTION_AMOUNT ,
W3cHints . LANGUAGE ,
W3cHints . BDAY ,
W3cHints . BDAY_DAY ,
W3cHints . BDAY_MONTH ,
W3cHints . BDAY_YEAR ,
W3cHints . SEX ,
W3cHints . URL ,
W3cHints . PHOTO ,
W3cHints . TEL ,
W3cHints . TEL_COUNTRY_CODE ,
W3cHints . TEL_NATIONAL ,
W3cHints . TEL_AREA_CODE ,
W3cHints . TEL_LOCAL ,
W3cHints . TEL_LOCAL_PREFIX ,
W3cHints . TEL_LOCAL_SUFFIX ,
W3cHints . TEL_EXTENSION ,
W3cHints . EMAIL ,
W3cHints . IMPP ,
} ;
private static readonly List < HashSet < string > > partitionsOfCanonicalHints = new List < HashSet < string > > ( )
{
new HashSet < string > ( StringComparer . OrdinalIgnoreCase )
{
AutofillHintEmailAddress ,
AutofillHintPhone ,
AutofillHintName ,
AutofillHintPassword ,
AutofillHintUsername ,
W3cHints . HONORIFIC_PREFIX ,
W3cHints . NAME ,
W3cHints . GIVEN_NAME ,
W3cHints . ADDITIONAL_NAME ,
W3cHints . FAMILY_NAME ,
W3cHints . HONORIFIC_SUFFIX ,
W3cHints . ORGANIZATION_TITLE ,
W3cHints . ORGANIZATION ,
W3cHints . LANGUAGE ,
W3cHints . BDAY ,
W3cHints . BDAY_DAY ,
W3cHints . BDAY_MONTH ,
W3cHints . BDAY_YEAR ,
W3cHints . SEX ,
W3cHints . URL ,
W3cHints . PHOTO ,
W3cHints . TEL ,
W3cHints . TEL_COUNTRY_CODE ,
W3cHints . TEL_NATIONAL ,
W3cHints . TEL_AREA_CODE ,
W3cHints . TEL_LOCAL ,
W3cHints . TEL_LOCAL_PREFIX ,
W3cHints . TEL_LOCAL_SUFFIX ,
W3cHints . TEL_EXTENSION ,
W3cHints . IMPP ,
} ,
new HashSet < string > ( StringComparer . OrdinalIgnoreCase )
{
AutofillHintPostalAddress ,
AutofillHintPostalCode ,
W3cHints . STREET_ADDRESS ,
W3cHints . ADDRESS_LINE1 ,
W3cHints . ADDRESS_LINE2 ,
W3cHints . ADDRESS_LINE3 ,
W3cHints . ADDRESS_LEVEL4 ,
W3cHints . ADDRESS_LEVEL3 ,
W3cHints . ADDRESS_LEVEL2 ,
W3cHints . ADDRESS_LEVEL1 ,
W3cHints . COUNTRY ,
W3cHints . COUNTRY_NAME
} ,
new HashSet < string > ( StringComparer . OrdinalIgnoreCase )
{
AutofillHintCreditCardExpirationDate ,
AutofillHintCreditCardExpirationDay ,
AutofillHintCreditCardExpirationMonth ,
AutofillHintCreditCardExpirationYear ,
AutofillHintCreditCardNumber ,
AutofillHintCreditCardSecurityCode ,
W3cHints . CC_NAME ,
W3cHints . CC_GIVEN_NAME ,
W3cHints . CC_ADDITIONAL_NAME ,
W3cHints . CC_FAMILY_NAME ,
W3cHints . CC_TYPE ,
W3cHints . TRANSACTION_CURRENCY ,
W3cHints . TRANSACTION_AMOUNT ,
} ,
} ;
private static readonly Dictionary < string , string > hintToCanonicalReplacement = new Dictionary < string , string > ( StringComparer . OrdinalIgnoreCase )
{
{ W3cHints . EMAIL , AutofillHintEmailAddress } ,
{ W3cHints . USERNAME , AutofillHintUsername } ,
{ W3cHints . CURRENT_PASSWORD , AutofillHintPassword } ,
{ W3cHints . NEW_PASSWORD , AutofillHintPassword } ,
{ W3cHints . CC_EXPIRATION_MONTH , AutofillHintCreditCardExpirationMonth } ,
{ W3cHints . CC_EXPIRATION_YEAR , AutofillHintCreditCardExpirationYear } ,
{ W3cHints . CC_EXPIRATION , AutofillHintCreditCardExpirationDate } ,
{ W3cHints . CC_NUMBER , AutofillHintCreditCardNumber } ,
{ W3cHints . CC_CSC , AutofillHintCreditCardSecurityCode } ,
{ W3cHints . POSTAL_CODE , AutofillHintPostalCode } ,
} ;
public static bool IsSupportedHint ( string hint )
{
return _allSupportedHints . Contains ( hint ) ;
}
public static string [ ] FilterForSupportedHints ( string [ ] hints )
{
if ( hints = = null )
return Array . Empty < string > ( ) ;
var filteredHints = new string [ hints . Length ] ;
int i = 0 ;
foreach ( var hint in hints )
{
if ( IsSupportedHint ( hint ) )
{
filteredHints [ i + + ] = hint ;
}
}
var finalFilteredHints = new string [ i ] ;
Array . Copy ( filteredHints , 0 , finalFilteredHints , 0 , i ) ;
return finalFilteredHints ;
}
/// <summary>
/// transforms hints by replacing some W3cHints by their Android counterparts and transforming everything to lowercase
/// </summary>
public static List < string > ConvertToCanonicalHints ( string [ ] supportedHints )
{
List < string > result = new List < string > ( ) ;
foreach ( string hint in supportedHints )
{
string canonicalHint ;
if ( ! hintToCanonicalReplacement . TryGetValue ( hint , out canonicalHint ) )
canonicalHint = hint ;
result . Add ( canonicalHint . ToLower ( ) ) ;
}
return result ;
}
public static int GetPartitionIndex ( string hint )
{
for ( int i = 0 ; i < partitionsOfCanonicalHints . Count ; i + + )
{
if ( partitionsOfCanonicalHints [ i ] . Contains ( hint ) )
{
return i ;
}
}
return - 1 ;
}
public static FilledAutofillFieldCollection < FieldT > FilterForPartition < FieldT > ( FilledAutofillFieldCollection < FieldT > autofillFields , int partitionIndex ) where FieldT : InputField
{
FilledAutofillFieldCollection < FieldT > filteredCollection =
new FilledAutofillFieldCollection < FieldT > { DatasetName = autofillFields . DatasetName } ;
if ( partitionIndex = = - 1 )
return filteredCollection ;
foreach ( var field in autofillFields . HintMap . Values . Distinct ( ) )
{
foreach ( var hint in field . AutofillHints )
{
if ( GetPartitionIndex ( hint ) = = partitionIndex )
{
filteredCollection . Add ( field ) ;
break ;
}
}
}
return filteredCollection ;
}
public static FilledAutofillFieldCollection < FieldT > FilterForPartition < FieldT > ( FilledAutofillFieldCollection < FieldT > filledAutofillFieldCollection , List < string > autofillFieldsFocusedAutofillCanonicalHints ) where FieldT : InputField
{
//only apply partition data if we have FocusedAutofillCanonicalHints. This may be empty on buggy Firefox.
if ( autofillFieldsFocusedAutofillCanonicalHints . Any ( ) )
{
int partitionIndex = AutofillHintsHelper . GetPartitionIndex ( autofillFieldsFocusedAutofillCanonicalHints . FirstOrDefault ( ) ) ;
return AutofillHintsHelper . FilterForPartition ( filledAutofillFieldCollection , partitionIndex ) ;
}
return filledAutofillFieldCollection ;
}
}
/// <summary>
/// This enum represents the Android.Text.InputTypes values. For testability, this is duplicated here.
/// </summary>
public enum InputTypes
{
ClassDatetime = 4 ,
ClassNumber = 2 ,
ClassPhone = 3 ,
ClassText = 1 ,
DatetimeVariationDate = 16 ,
DatetimeVariationNormal = 0 ,
DatetimeVariationTime = 32 ,
MaskClass = 15 ,
MaskFlags = 16773120 ,
MaskVariation = 4080 ,
Null = 0 ,
NumberFlagDecimal = 8192 ,
NumberFlagSigned = 4096 ,
NumberVariationNormal = 0 ,
NumberVariationPassword = 16 ,
TextFlagAutoComplete = 65536 ,
TextFlagAutoCorrect = 32768 ,
TextFlagCapCharacters = 4096 ,
TextFlagCapSentences = 16384 ,
TextFlagCapWords = 8192 ,
TextFlagEnableTextConversionSuggestions = 1048576 ,
TextFlagImeMultiLine = 262144 ,
TextFlagMultiLine = 131072 ,
TextFlagNoSuggestions = 524288 ,
TextVariationEmailAddress = 32 ,
TextVariationEmailSubject = 48 ,
TextVariationFilter = 176 ,
TextVariationLongMessage = 80 ,
TextVariationNormal = 0 ,
TextVariationPassword = 128 ,
TextVariationPersonName = 96 ,
TextVariationPhonetic = 192 ,
TextVariationPostalAddress = 112 ,
TextVariationShortMessage = 64 ,
TextVariationUri = 16 ,
TextVariationVisiblePassword = 144 ,
TextVariationWebEditText = 160 ,
TextVariationWebEmailAddress = 208 ,
TextVariationWebPassword = 224
}
public interface IKp2aDigitalAssetLinksDataSource
{
bool IsTrustedApp ( string packageName ) ;
bool IsTrustedLink ( string domain , string targetPackage ) ;
bool IsEnabled ( ) ;
}
class TimeUtil
{
private static DateTime ? m_dtUnixRoot = null ;
public static DateTime ConvertUnixTime ( double dtUnix )
{
try
{
if ( ! m_dtUnixRoot . HasValue )
m_dtUnixRoot = ( new DateTime ( 1970 , 1 , 1 , 0 , 0 , 0 , 0 ,
DateTimeKind . Utc ) ) . ToLocalTime ( ) ;
return m_dtUnixRoot . Value . AddSeconds ( dtUnix ) ;
}
catch ( Exception ) { Debug . Assert ( false ) ; }
return DateTime . UtcNow ;
}
}
public class FilledAutofillField < FieldT > where FieldT : InputField
{
private string [ ] _autofillHints ;
public string TextValue { get ; set ; }
public long? DateValue { get ; set ; }
public bool? ToggleValue { get ; set ; }
public string ValueToString ( )
{
if ( DateValue ! = null )
{
return TimeUtil . ConvertUnixTime ( ( long ) DateValue / 1000.0 ) . ToLongDateString ( ) ;
}
if ( ToggleValue ! = null )
return ToggleValue . ToString ( ) ;
return TextValue ;
}
/// <summary>
/// returns the autofill hints for the filled field. These are always lowercased for simpler string comparison.
/// </summary>
public string [ ] AutofillHints
{
get
{
return _autofillHints ;
}
set
{
_autofillHints = value ;
for ( int i = 0 ; i < _autofillHints . Length ; i + + )
_autofillHints [ i ] = _autofillHints [ i ] . ToLower ( ) ;
}
}
public FilledAutofillField ( )
{ }
public FilledAutofillField ( FieldT inputField )
: this ( inputField , inputField . AutofillHints )
{
}
public FilledAutofillField ( FieldT inputField , string [ ] hints )
{
string [ ] rawHints = AutofillHintsHelper . FilterForSupportedHints ( hints ) ;
List < string > hintList = new List < string > ( ) ;
string nextHint = null ;
for ( int i = 0 ; i < rawHints . Length ; i + + )
{
string hint = rawHints [ i ] ;
if ( i < rawHints . Length - 1 )
{
nextHint = rawHints [ i + 1 ] ;
}
// First convert the compound W3C autofill hints
if ( W3cHints . isW3cSectionPrefix ( hint ) & & i < rawHints . Length - 1 )
{
hint = rawHints [ + + i ] ;
if ( i < rawHints . Length - 1 )
{
nextHint = rawHints [ i + 1 ] ;
}
}
if ( W3cHints . isW3cTypePrefix ( hint ) & & nextHint ! = null & & W3cHints . isW3cTypeHint ( nextHint ) )
{
hint = nextHint ;
i + + ;
}
if ( W3cHints . isW3cAddressType ( hint ) & & nextHint ! = null )
{
hint = nextHint ;
i + + ;
}
// Then check if the "actual" hint is supported.
if ( AutofillHintsHelper . IsSupportedHint ( hint ) )
{
hintList . Add ( hint ) ;
}
else
{
}
}
AutofillHints = AutofillHintsHelper . ConvertToCanonicalHints ( hintList . ToArray ( ) ) . ToArray ( ) ;
}
public bool IsNull ( )
{
return TextValue = = null & & DateValue = = null & & ToggleValue = = null ;
}
public override bool Equals ( object obj )
{
if ( this = = obj ) return true ;
if ( obj = = null | | GetType ( ) ! = obj . GetType ( ) ) return false ;
FilledAutofillField < FieldT > that = ( FilledAutofillField < FieldT > ) obj ;
if ( ! TextValue ? . Equals ( that . TextValue ) ? ? that . TextValue ! = null )
return false ;
if ( DateValue ! = null ? ! DateValue . Equals ( that . DateValue ) : that . DateValue ! = null )
return false ;
return ToggleValue ! = null ? ToggleValue . Equals ( that . ToggleValue ) : that . ToggleValue = = null ;
}
public override int GetHashCode ( )
{
unchecked
{
var result = TextValue ! = null ? TextValue . GetHashCode ( ) : 0 ;
result = 31 * result + ( DateValue ! = null ? DateValue . GetHashCode ( ) : 0 ) ;
result = 31 * result + ( ToggleValue ! = null ? ToggleValue . GetHashCode ( ) : 0 ) ;
return result ;
}
}
}
/// <summary>
/// Base class for everything that is a input field which might (or might not) be autofilled.
/// For testability, this is independent from Android classes like ViewNode
/// </summary>
public abstract class InputField
{
public string IdEntry { get ; set ; }
public string Hint { get ; set ; }
public string ClassName { get ; set ; }
public string [ ] AutofillHints { get ; set ; }
public bool IsFocused { get ; set ; }
public InputTypes InputType { get ; set ; }
public string HtmlInfoTag { get ; set ; }
public string HtmlInfoTypeAttribute { get ; set ; }
}
public class AutofillView < TField > where TField : InputField
{
public List < TField > InputFields { get ; set ; } = new List < TField > ( ) ;
public string PackageId { get ; set ; } = null ;
public string WebDomain { get ; set ; } = null ;
}
public interface ILogger
{
void Log ( string x ) ;
}
public class StructureParserBase < FieldT > where FieldT : InputField
{
private readonly ILogger _log ;
private readonly IKp2aDigitalAssetLinksDataSource _digitalAssetLinksDataSource ;
private readonly List < string > _autofillHintsForLogin = new List < string >
{
AutofillHintsHelper . AutofillHintPassword ,
AutofillHintsHelper . AutofillHintUsername ,
AutofillHintsHelper . AutofillHintEmailAddress
} ;
public string PackageId { get ; set ; }
public Dictionary < FieldT , string [ ] > FieldsMappedToHints = new Dictionary < FieldT , string [ ] > ( ) ;
public StructureParserBase ( ILogger logger , IKp2aDigitalAssetLinksDataSource digitalAssetLinksDataSource )
{
_log = logger ;
_digitalAssetLinksDataSource = digitalAssetLinksDataSource ;
}
public class AutofillTargetId
{
public string PackageName { get ; set ; }
public string PackageNameWithPseudoSchema
{
get { return AndroidAppScheme + PackageName ; }
}
public const string AndroidAppScheme = "androidapp://" ;
public string WebDomain { get ; set ; }
/// <summary>
/// If PackageName and WebDomain are not compatible (by DAL or because PackageName is a trusted browser in which case we treat all domains as "compatible"
/// we need to issue a warning. If we would fill credentials for the package, a malicious website could try to get credentials for the app.
/// If we would fill credentials for the domain, a malicious app could get credentials for the domain.
/// </summary>
public bool IncompatiblePackageAndDomain { get ; set ; }
public string DomainOrPackage
{
get
{
return WebDomain ? ? PackageNameWithPseudoSchema ;
}
}
}
public AutofillTargetId ParseForFill ( bool isManual , AutofillView < FieldT > autofillView )
{
return Parse ( true , isManual , autofillView ) ;
}
public AutofillTargetId ParseForSave ( AutofillView < FieldT > autofillView )
{
return Parse ( false , true , autofillView ) ;
}
/// <summary>
/// Traverse AssistStructure and add ViewNode metadata to a flat list.
/// </summary>
/// <returns>The parse.</returns>
/// <param name="forFill">If set to <c>true</c> for fill.</param>
/// <param name="isManualRequest"></param>
protected virtual AutofillTargetId Parse ( bool forFill , bool isManualRequest , AutofillView < FieldT > autofillView )
{
AutofillTargetId result = new AutofillTargetId ( )
{
PackageName = autofillView . PackageId ,
WebDomain = autofillView . WebDomain
} ;
_log . Log ( "parsing autofillStructure..." ) ;
//TODO remove from production
_log . Log ( "will log the autofillStructure..." ) ;
string debugInfo = JsonConvert . SerializeObject ( autofillView , Newtonsoft . Json . Formatting . Indented ) ;
_log . Log ( "will log the autofillStructure... size is " + debugInfo . Length ) ;
_log . Log ( "This is the autofillStructure: \n\n " + debugInfo ) ;
//go through each input field and determine username/password fields.
//Depending on the target this can require more or less heuristics.
// * if there is a valid & supported autofill hint, we assume that all fields which should be filled do have an appropriate Autofill hint
// * if there is no such autofill hint, we use IsPassword to
HashSet < string > autofillHintsOfAllFields = autofillView . InputFields . Where ( f = > f . AutofillHints ! = null )
. SelectMany ( f = > f . AutofillHints ) . ToHashSet ( ) ;
bool hasLoginAutofillHints = autofillHintsOfAllFields . Intersect ( _autofillHintsForLogin ) . Any ( ) ;
if ( hasLoginAutofillHints )
{
foreach ( var viewNode in autofillView . InputFields )
{
string [ ] viewHints = viewNode . AutofillHints ;
if ( viewHints = = null )
continue ;
if ( viewHints . Intersect ( _autofillHintsForLogin ) . Any ( ) )
{
FieldsMappedToHints . Add ( viewNode , viewHints ) ;
}
}
}
else
{
//determine password fields, first by type, then by hint:
List < FieldT > passwordFields = autofillView . InputFields . Where ( f = > IsEditText ( f ) & & IsPassword ( f ) ) . ToList ( ) ;
if ( ! passwordFields . Any ( ) )
{
passwordFields = autofillView . InputFields . Where ( f = > IsEditText ( f ) & & HasPasswordHint ( f ) ) . ToList ( ) ;
}
//determine username fields. Try by hint, if that fails use the one before the password
List < FieldT > usernameFields = autofillView . InputFields . Where ( f = > IsEditText ( f ) & & HasUsernameHint ( f ) ) . ToList ( ) ;
if ( ! usernameFields . Any ( ) )
{
foreach ( var passwordField in passwordFields )
{
var lastInputBeforePassword = autofillView . InputFields
. TakeWhile ( f = > IsEditText ( f ) & & f ! = passwordField & & ! passwordFields . Contains ( f ) ) . LastOrDefault ( ) ;
if ( lastInputBeforePassword ! = null )
usernameFields . Add ( lastInputBeforePassword ) ;
}
}
//for "heuristic determination" we demand that one of the filled fields is focused:
if ( passwordFields . Concat ( usernameFields ) . Any ( f = > f . IsFocused ) )
{
foreach ( var uf in usernameFields )
FieldsMappedToHints . Add ( uf , new string [ ] { AutofillHintsHelper . AutofillHintUsername } ) ;
foreach ( var pf in passwordFields )
FieldsMappedToHints . Add ( pf , new string [ ] { AutofillHintsHelper . AutofillHintPassword } ) ;
}
}
if ( ! string . IsNullOrEmpty ( autofillView . WebDomain ) & & _digitalAssetLinksDataSource . IsEnabled ( ) )
{
result . IncompatiblePackageAndDomain = ! _digitalAssetLinksDataSource . IsTrustedLink ( autofillView . WebDomain , result . PackageName ) ;
if ( result . IncompatiblePackageAndDomain )
{
_log . Log ( $"DAL verification failed for {result.PackageName}/{result.WebDomain}" ) ;
}
}
else
{
result . IncompatiblePackageAndDomain = false ;
}
return result ;
}
private bool IsEditText ( FieldT f )
{
return ( f . ClassName = = "android.widget.EditText"
| | f . ClassName = = "android.widget.AutoCompleteTextView"
| | f . HtmlInfoTag = = "input" ) ;
}
private static readonly HashSet < string > _passwordHints = new HashSet < string > { "password" , "passwort"
/*, "passwordAuto", "pswd"*/ } ;
private static bool HasPasswordHint ( InputField f )
{
return IsAny ( f . IdEntry , _passwordHints ) | |
IsAny ( f . Hint , _passwordHints ) ;
}
private static readonly HashSet < string > _usernameHints = new HashSet < string > { "email" , "e-mail" , "username" } ;
private static bool HasUsernameHint ( InputField f )
{
return IsAny ( f . IdEntry , _usernameHints ) | |
IsAny ( f . Hint , _usernameHints ) ;
}
private static bool IsAny ( string value , IEnumerable < string > terms )
{
if ( string . IsNullOrWhiteSpace ( value ) )
{
return false ;
}
var lowerValue = value . ToLowerInvariant ( ) ;
return terms . Any ( t = > lowerValue = = t ) ;
}
private static bool IsInputTypeClass ( InputTypes inputType , InputTypes inputTypeClass )
{
if ( ! InputTypes . MaskClass . HasFlag ( inputTypeClass ) )
throw new Exception ( "invalid inputTypeClass" ) ;
return ( ( ( int ) inputType ) & ( int ) InputTypes . MaskClass ) = = ( int ) ( inputTypeClass ) ;
}
private static bool IsInputTypeVariation ( InputTypes inputType , InputTypes inputTypeVariation )
{
if ( ! InputTypes . MaskVariation . HasFlag ( inputTypeVariation ) )
throw new Exception ( "invalid inputTypeVariation" ) ;
return ( ( ( int ) inputType ) & ( int ) InputTypes . MaskVariation ) = = ( int ) ( inputTypeVariation ) ;
}
private static bool IsPassword ( InputField f )
{
InputTypes inputType = f . InputType ;
return
( ! f . IdEntry ? . ToLowerInvariant ( ) . Contains ( "search" ) ? ? true ) & &
( ! f . Hint ? . ToLowerInvariant ( ) . Contains ( "search" ) ? ? true ) & &
(
( IsInputTypeClass ( inputType , InputTypes . ClassText )
& &
(
IsInputTypeVariation ( inputType , InputTypes . TextVariationPassword )
| | IsInputTypeVariation ( inputType , InputTypes . TextVariationVisiblePassword )
| | IsInputTypeVariation ( inputType , InputTypes . TextVariationWebPassword )
)
)
| | ( f . AutofillHints ! = null & & f . AutofillHints . First ( ) = = "passwordAuto" )
| | ( f . HtmlInfoTypeAttribute = = "password" )
) ;
}
}
}
