annotate src/com/five_ten_sg/connectbot/transport/TransportFactory.java @ 428:b525a8141923

strip some debug code
author Carl Byington <carl@five-ten-sg.com>
date Sun, 14 Dec 2014 19:02:48 -0800
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1 /*
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2 * ConnectBot: simple, powerful, open-source SSH client for Android
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3 * Copyright 2007 Kenny Root, Jeffrey Sharkey
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4 *
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5 * Licensed under the Apache License, Version 2.0 (the "License");
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6 * you may not use this file except in compliance with the License.
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7 * You may obtain a copy of the License at
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8 *
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9 * http://www.apache.org/licenses/LICENSE-2.0
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10 *
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11 * Unless required by applicable law or agreed to in writing, software
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12 * distributed under the License is distributed on an "AS IS" BASIS,
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13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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14 * See the License for the specific language governing permissions and
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15 * limitations under the License.
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16 */
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17
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18 package com.five_ten_sg.connectbot.transport;
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19
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20 import java.util.HashMap;
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21 import java.util.Map;
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22
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23 import com.five_ten_sg.connectbot.bean.HostBean;
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24 import com.five_ten_sg.connectbot.util.HostDatabase;
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25 import android.content.Context;
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26 import android.net.Uri;
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27 import android.util.Log;
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28
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29
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30 /**
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31 * @author Kenny Root
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32 *
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33 */
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34 public class TransportFactory {
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35 private static final String TAG = "ConnectBot.TransportFactory";
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36
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37 private static String[] transportNames = {
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38 SSH.getProtocolName(),
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39 TN5250.getProtocolName(),
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40 Telnet.getProtocolName(),
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41 Local.getProtocolName(),
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42 };
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43
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44 /**
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45 * @param protocol
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46 * @return
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47 */
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48 public static AbsTransport getTransport(String protocol) {
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49 if (SSH.getProtocolName().equals(protocol)) {
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50 return new SSH();
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51 }
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52 else if (TN5250.getProtocolName().equals(protocol)) {
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53 return new TN5250();
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54 }
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55 else if (Telnet.getProtocolName().equals(protocol)) {
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56 return new Telnet();
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57 }
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58 else if (Local.getProtocolName().equals(protocol)) {
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59 return new Local();
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60 }
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61 else {
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62 return null;
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63 }
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64 }
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65
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66 public static Uri getUri(String protocol, String input) {
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67 Log.d("TransportFactory", String.format(
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68 "Attempting to discover URI for protocol=%s on input=%s",
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69 protocol, input));
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70 AbsTransport t = getTransport(protocol);
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71
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72 if (t == null) return null;
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73
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74 return t.getUri(input);
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75 }
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76
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77 public static String[] getTransportNames() {
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78 return transportNames;
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79 }
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80
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81 public static boolean isSameTransportType(AbsTransport a, AbsTransport b) {
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82 if (a == null || b == null)
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83 return false;
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84
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85 return a.getClass().equals(b.getClass());
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86 }
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87
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88 public static boolean canForwardPorts(String protocol) {
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89 AbsTransport t = getTransport(protocol);
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90
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91 if (t == null) return false;
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92
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93 return t.canForwardPorts();
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94 }
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95
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96 /**
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97 * @param protocol text name of protocol
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98 * @param context
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99 * @return expanded format hint
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100 */
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101 public static String getFormatHint(String protocol, Context context) {
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102 AbsTransport t = getTransport(protocol);
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103
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104 if (t == null) return "???";
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105
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106 return t.getFormatHint(context);
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107 }
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108
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109 /**
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110 * @param hostdb Handle to HostDatabase
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111 * @param uri URI to target server
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112 * @return HostBean or null
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113 */
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114 public static HostBean findHost(HostDatabase hostdb, Uri uri) {
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115 AbsTransport transport = getTransport(uri.getScheme());
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116 Map<String, String> selection = new HashMap<String, String>();
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117 transport.getSelectionArgs(uri, selection);
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118
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119 if (selection.size() == 0) {
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120 Log.e(TAG, String.format("Transport %s failed to do something useful with URI=%s",
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121 uri.getScheme(), uri.toString()));
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122 throw new IllegalStateException("Failed to get needed selection arguments");
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123 }
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124
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125 return hostdb.findHost(selection);
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126 }
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127 }