| /* |
| * Copyright 2014, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.telecomm; |
| |
| import android.net.Uri; |
| import android.telecomm.PhoneAccount; |
| import android.telephony.PhoneNumberUtils; |
| |
| import java.security.MessageDigest; |
| import java.security.NoSuchAlgorithmException; |
| import java.util.IllegalFormatException; |
| import java.util.Locale; |
| |
| /** |
| * Manages logging for the entire module. |
| */ |
| public class Log { |
| |
| // Generic tag for all In Call logging |
| private static final String TAG = "Telecomm"; |
| |
| public static final boolean FORCE_LOGGING = false; /* STOP SHIP if true */ |
| public static final boolean DEBUG = isLoggable(android.util.Log.DEBUG); |
| public static final boolean INFO = isLoggable(android.util.Log.INFO); |
| public static final boolean VERBOSE = isLoggable(android.util.Log.VERBOSE); |
| public static final boolean WARN = isLoggable(android.util.Log.WARN); |
| public static final boolean ERROR = isLoggable(android.util.Log.ERROR); |
| |
| private Log() {} |
| |
| public static boolean isLoggable(int level) { |
| return FORCE_LOGGING || android.util.Log.isLoggable(TAG, level); |
| } |
| |
| public static void d(String prefix, String format, Object... args) { |
| if (DEBUG) { |
| android.util.Log.d(TAG, buildMessage(prefix, format, args)); |
| } |
| } |
| |
| public static void d(Object objectPrefix, String format, Object... args) { |
| if (DEBUG) { |
| android.util.Log.d(TAG, buildMessage(getPrefixFromObject(objectPrefix), format, args)); |
| } |
| } |
| |
| public static void i(String prefix, String format, Object... args) { |
| if (INFO) { |
| android.util.Log.i(TAG, buildMessage(prefix, format, args)); |
| } |
| } |
| |
| public static void i(Object objectPrefix, String format, Object... args) { |
| if (INFO) { |
| android.util.Log.i(TAG, buildMessage(getPrefixFromObject(objectPrefix), format, args)); |
| } |
| } |
| |
| public static void v(String prefix, String format, Object... args) { |
| if (VERBOSE) { |
| android.util.Log.v(TAG, buildMessage(prefix, format, args)); |
| } |
| } |
| |
| public static void v(Object objectPrefix, String format, Object... args) { |
| if (VERBOSE) { |
| android.util.Log.v(TAG, buildMessage(getPrefixFromObject(objectPrefix), format, args)); |
| } |
| } |
| |
| public static void w(String prefix, String format, Object... args) { |
| if (WARN) { |
| android.util.Log.w(TAG, buildMessage(prefix, format, args)); |
| } |
| } |
| |
| public static void w(Object objectPrefix, String format, Object... args) { |
| if (WARN) { |
| android.util.Log.w(TAG, buildMessage(getPrefixFromObject(objectPrefix), format, args)); |
| } |
| } |
| |
| public static void e(String prefix, Throwable tr, String format, Object... args) { |
| if (ERROR) { |
| android.util.Log.e(TAG, buildMessage(prefix, format, args), tr); |
| } |
| } |
| |
| public static void e(Object objectPrefix, Throwable tr, String format, Object... args) { |
| if (ERROR) { |
| android.util.Log.e(TAG, buildMessage(getPrefixFromObject(objectPrefix), format, args), |
| tr); |
| } |
| } |
| |
| public static void wtf(String prefix, Throwable tr, String format, Object... args) { |
| android.util.Log.wtf(TAG, buildMessage(prefix, format, args), tr); |
| } |
| |
| public static void wtf(Object objectPrefix, Throwable tr, String format, Object... args) { |
| android.util.Log.wtf(TAG, buildMessage(getPrefixFromObject(objectPrefix), format, args), |
| tr); |
| } |
| |
| public static void wtf(String prefix, String format, Object... args) { |
| String msg = buildMessage(prefix, format, args); |
| android.util.Log.wtf(TAG, msg, new IllegalStateException(msg)); |
| } |
| |
| public static void wtf(Object objectPrefix, String format, Object... args) { |
| String msg = buildMessage(getPrefixFromObject(objectPrefix), format, args); |
| android.util.Log.wtf(TAG, msg, new IllegalStateException(msg)); |
| } |
| |
| public static String piiHandle(Object pii) { |
| if (pii == null || VERBOSE) { |
| return String.valueOf(pii); |
| } |
| |
| if (pii instanceof Uri) { |
| Uri uri = (Uri) pii; |
| |
| // All Uri's which are not "tel" go through normal pii() method. |
| if (!PhoneAccount.SCHEME_TEL.equals(uri.getScheme())) { |
| return pii(pii); |
| } else { |
| pii = uri.getSchemeSpecificPart(); |
| } |
| } |
| |
| String originalString = String.valueOf(pii); |
| StringBuilder stringBuilder = new StringBuilder(originalString.length()); |
| for (char c : originalString.toCharArray()) { |
| if (PhoneNumberUtils.isDialable(c)) { |
| stringBuilder.append('*'); |
| } else { |
| stringBuilder.append(c); |
| } |
| } |
| return stringBuilder.toString(); |
| } |
| |
| /** |
| * Redact personally identifiable information for production users. |
| * If we are running in verbose mode, return the original string, otherwise |
| * return a SHA-1 hash of the input string. |
| */ |
| public static String pii(Object pii) { |
| if (pii == null || VERBOSE) { |
| return String.valueOf(pii); |
| } |
| return "[" + secureHash(String.valueOf(pii).getBytes()) + "]"; |
| } |
| |
| private static String secureHash(byte[] input) { |
| MessageDigest messageDigest; |
| try { |
| messageDigest = MessageDigest.getInstance("SHA-1"); |
| } catch (NoSuchAlgorithmException e) { |
| return null; |
| } |
| messageDigest.update(input); |
| byte[] result = messageDigest.digest(); |
| return encodeHex(result); |
| } |
| |
| private static String encodeHex(byte[] bytes) { |
| StringBuffer hex = new StringBuffer(bytes.length * 2); |
| |
| for (int i = 0; i < bytes.length; i++) { |
| int byteIntValue = bytes[i] & 0xff; |
| if (byteIntValue < 0x10) { |
| hex.append("0"); |
| } |
| hex.append(Integer.toString(byteIntValue, 16)); |
| } |
| |
| return hex.toString(); |
| } |
| |
| private static String getPrefixFromObject(Object obj) { |
| return obj == null ? "<null>" : obj.getClass().getSimpleName(); |
| } |
| |
| private static String buildMessage(String prefix, String format, Object... args) { |
| String msg; |
| try { |
| msg = (args == null || args.length == 0) ? format |
| : String.format(Locale.US, format, args); |
| } catch (IllegalFormatException ife) { |
| e("Log", ife, "IllegalFormatException: formatString='%s' numArgs=%d", format, |
| args.length); |
| msg = format + " (An error occurred while formatting the message.)"; |
| } |
| return String.format(Locale.US, "%s: %s", prefix, msg); |
| } |
| } |