nmode's Git Repositories - signal-cli/blob - src/main/java/org/asamk/signal/util/Util.java

   1 package org.asamk.signal.util;
   2
   3 import com.fasterxml.jackson.databind.JsonNode;
   4
   5 import org.asamk.signal.GroupIdFormatException;
   6 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
   7 import org.whispersystems.signalservice.api.util.InvalidNumberException;
   8 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
   9 import org.whispersystems.signalservice.api.util.UuidUtil;
  10 import org.whispersystems.util.Base64;
  11
  12 import java.io.IOException;
  13 import java.io.InvalidObjectException;
  14
  15 public class Util {
  16
  17     private Util() {
  18     }
  19
  20     public static String formatSafetyNumber(String digits) {
  21         final int partCount = 12;
  22         int partSize = digits.length() / partCount;
  23         StringBuilder f = new StringBuilder(digits.length() + partCount);
  24         for (int i = 0; i < partCount; i++) {
  25             f.append(digits, i * partSize, (i * partSize) + partSize).append(" ");
  26         }
  27         return f.toString();
  28     }
  29
  30     public static String join(CharSequence separator, Iterable<? extends CharSequence> list) {
  31         StringBuilder buf = new StringBuilder();
  32         for (CharSequence str : list) {
  33             if (buf.length() > 0) {
  34                 buf.append(separator);
  35             }
  36             buf.append(str);
  37         }
  38
  39         return buf.toString();
  40     }
  41
  42     public static JsonNode getNotNullNode(JsonNode parent, String name) throws InvalidObjectException {
  43         JsonNode node = parent.get(name);
  44         if (node == null) {
  45             throw new InvalidObjectException(String.format("Incorrect file format: expected parameter %s not found ", name));
  46         }
  47
  48         return node;
  49     }
  50
  51     public static byte[] decodeGroupId(String groupId) throws GroupIdFormatException {
  52         try {
  53             return Base64.decode(groupId);
  54         } catch (IOException e) {
  55             throw new GroupIdFormatException(groupId, e);
  56         }
  57     }
  58
  59     public static String canonicalizeNumber(String number, String localNumber) throws InvalidNumberException {
  60         return PhoneNumberFormatter.formatNumber(number, localNumber);
  61     }
  62
  63     public static SignalServiceAddress getSignalServiceAddressFromIdentifier(final String identifier) {
  64         if (UuidUtil.isUuid(identifier)) {
  65             return new SignalServiceAddress(UuidUtil.parseOrNull(identifier), null);
  66         } else {
  67             return new SignalServiceAddress(null, identifier);
  68         }
  69     }
  70 }