1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.incallui; 18 19 import android.net.Uri; 20 import android.telecom.PhoneAccount; 21 import android.telephony.PhoneNumberUtils; 22 import com.android.dialer.common.LogUtil; 23 import java.security.MessageDigest; 24 import java.security.NoSuchAlgorithmException; 25 26 /** Manages logging for the entire class. */ 27 public class Log { 28 d(String tag, String msg)29 public static void d(String tag, String msg) { 30 LogUtil.d(tag, msg); 31 } 32 d(Object obj, String msg)33 public static void d(Object obj, String msg) { 34 LogUtil.d(getPrefix(obj), msg); 35 } 36 d(Object obj, String str1, Object str2)37 public static void d(Object obj, String str1, Object str2) { 38 LogUtil.d(getPrefix(obj), str1 + str2); 39 } 40 v(Object obj, String msg)41 public static void v(Object obj, String msg) { 42 LogUtil.v(getPrefix(obj), msg); 43 } 44 v(Object obj, String str1, Object str2)45 public static void v(Object obj, String str1, Object str2) { 46 LogUtil.v(getPrefix(obj), str1 + str2); 47 } 48 e(String tag, String msg, Exception e)49 public static void e(String tag, String msg, Exception e) { 50 LogUtil.e(tag, msg, e); 51 } 52 e(String tag, String msg)53 public static void e(String tag, String msg) { 54 LogUtil.e(tag, msg); 55 } 56 e(Object obj, String msg, Exception e)57 public static void e(Object obj, String msg, Exception e) { 58 LogUtil.e(getPrefix(obj), msg, e); 59 } 60 e(Object obj, String msg)61 public static void e(Object obj, String msg) { 62 LogUtil.e(getPrefix(obj), msg); 63 } 64 i(String tag, String msg)65 public static void i(String tag, String msg) { 66 LogUtil.i(tag, msg); 67 } 68 i(Object obj, String msg)69 public static void i(Object obj, String msg) { 70 LogUtil.i(getPrefix(obj), msg); 71 } 72 w(Object obj, String msg)73 public static void w(Object obj, String msg) { 74 LogUtil.w(getPrefix(obj), msg); 75 } 76 piiHandle(Object pii)77 public static String piiHandle(Object pii) { 78 if (pii == null || LogUtil.isVerboseEnabled()) { 79 return String.valueOf(pii); 80 } 81 82 if (pii instanceof Uri) { 83 Uri uri = (Uri) pii; 84 85 // All Uri's which are not "tel" go through normal pii() method. 86 if (!PhoneAccount.SCHEME_TEL.equals(uri.getScheme())) { 87 return pii(pii); 88 } else { 89 pii = uri.getSchemeSpecificPart(); 90 } 91 } 92 93 String originalString = String.valueOf(pii); 94 StringBuilder stringBuilder = new StringBuilder(originalString.length()); 95 for (char c : originalString.toCharArray()) { 96 if (PhoneNumberUtils.isDialable(c)) { 97 stringBuilder.append('*'); 98 } else { 99 stringBuilder.append(c); 100 } 101 } 102 return stringBuilder.toString(); 103 } 104 105 /** 106 * Redact personally identifiable information for production users. If we are running in verbose 107 * mode, return the original string, otherwise return a SHA-1 hash of the input string. 108 */ pii(Object pii)109 public static String pii(Object pii) { 110 if (pii == null || LogUtil.isVerboseEnabled()) { 111 return String.valueOf(pii); 112 } 113 return "[" + secureHash(String.valueOf(pii).getBytes()) + "]"; 114 } 115 secureHash(byte[] input)116 private static String secureHash(byte[] input) { 117 MessageDigest messageDigest; 118 try { 119 messageDigest = MessageDigest.getInstance("SHA-1"); 120 } catch (NoSuchAlgorithmException e) { 121 return null; 122 } 123 messageDigest.update(input); 124 byte[] result = messageDigest.digest(); 125 return encodeHex(result); 126 } 127 encodeHex(byte[] bytes)128 private static String encodeHex(byte[] bytes) { 129 StringBuffer hex = new StringBuffer(bytes.length * 2); 130 131 for (int i = 0; i < bytes.length; i++) { 132 int byteIntValue = bytes[i] & 0xff; 133 if (byteIntValue < 0x10) { 134 hex.append("0"); 135 } 136 hex.append(Integer.toString(byteIntValue, 16)); 137 } 138 139 return hex.toString(); 140 } 141 getPrefix(Object obj)142 private static String getPrefix(Object obj) { 143 return (obj == null ? "" : (obj.getClass().getSimpleName())); 144 } 145 } 146