Mercurial > 510Connectbot

comparison src/com/five_ten_sg/connectbot/transport/TransportFactory.java @ 0:0ce5cc452d02

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initial version
author Carl Byington <carl@five-ten-sg.com>
date Thu, 22 May 2014 10:41:19 -0700
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children f3b3bbd227b8
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-1:000000000000 0:0ce5cc452d02
1 /*
2 * ConnectBot: simple, powerful, open-source SSH client for Android
3 * Copyright 2007 Kenny Root, Jeffrey Sharkey
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package com.five_ten_sg.connectbot.transport;
19
20 import java.util.HashMap;
21 import java.util.Map;
22
23 import com.five_ten_sg.connectbot.bean.HostBean;
24 import com.five_ten_sg.connectbot.util.HostDatabase;
25 import android.content.Context;
26 import android.net.Uri;
27 import android.util.Log;
28
29
30 /**
31 * @author Kenny Root
32 *
33 */
34 public class TransportFactory {
35 private static final String TAG = "ConnectBot.TransportFactory";
36
37 private static String[] transportNames = {
38 SSH.getProtocolName(),
39 Telnet.getProtocolName(),
40 Local.getProtocolName(),
41 };
42
43 /**
44 * @param protocol
45 * @return
46 */
47 public static AbsTransport getTransport(String protocol) {
48 if (SSH.getProtocolName().equals(protocol)) {
49 return new SSH();
50 }
51 else if (Telnet.getProtocolName().equals(protocol)) {
52 return new Telnet();
53 }
54 else if (Local.getProtocolName().equals(protocol)) {
55 return new Local();
56 }
57 else {
58 return null;
59 }
60 }
61
62 public static Uri getUri(String scheme, String input) {
63 Log.d("TransportFactory", String.format(
64 "Attempting to discover URI for scheme=%s on input=%s", scheme,
65 input));
66
67 if (SSH.getProtocolName().equals(scheme))
68 return SSH.getUri(input);
69 else if (Telnet.getProtocolName().equals(scheme))
70 return Telnet.getUri(input);
71 else if (Local.getProtocolName().equals(scheme)) {
72 Log.d("TransportFactory", "Got to the local parsing area");
73 return Local.getUri(input);
74 }
75 else
76 return null;
77 }
78
79 public static String[] getTransportNames() {
80 return transportNames;
81 }
82
83 public static boolean isSameTransportType(AbsTransport a, AbsTransport b) {
84 if (a == null || b == null)
85 return false;
86
87 return a.getClass().equals(b.getClass());
88 }
89
90 public static boolean canForwardPorts(String protocol) {
91 // TODO uh, make this have less knowledge about its children
92 if (SSH.getProtocolName().equals(protocol)) {
93 return true;
94 }
95 else {
96 return false;
97 }
98 }
99
100 /**
101 * @param protocol text name of protocol
102 * @param context
103 * @return expanded format hint
104 */
105 public static String getFormatHint(String protocol, Context context) {
106 if (SSH.getProtocolName().equals(protocol)) {
107 return SSH.getFormatHint(context);
108 }
109 else if (Telnet.getProtocolName().equals(protocol)) {
110 return Telnet.getFormatHint(context);
111 }
112 else if (Local.getProtocolName().equals(protocol)) {
113 return Local.getFormatHint(context);
114 }
115 else {
116 return AbsTransport.getFormatHint(context);
117 }
118 }
119
120 /**
121 * @param hostdb Handle to HostDatabase
122 * @param uri URI to target server
123 * @return HostBean or null
124 */
125 public static HostBean findHost(HostDatabase hostdb, Uri uri) {
126 AbsTransport transport = getTransport(uri.getScheme());
127 Map<String, String> selection = new HashMap<String, String>();
128 transport.getSelectionArgs(uri, selection);
129
130 if (selection.size() == 0) {
131 Log.e(TAG, String.format("Transport %s failed to do something useful with URI=%s",
132 uri.getScheme(), uri.toString()));
133 throw new IllegalStateException("Failed to get needed selection arguments");
134 }
135
136 return hostdb.findHost(selection);
137 }
138 }