1 /* 2 * Copyright (C) 2006 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.settings; 18 19 import android.app.Activity; 20 import android.app.AlertDialog; 21 import android.app.Dialog; 22 import android.app.admin.DevicePolicyManager; 23 import android.content.Context; 24 import android.content.Intent; 25 import android.net.ConnectivityManager; 26 import android.net.Proxy; 27 import android.net.ProxyInfo; 28 import android.os.Bundle; 29 import android.text.Selection; 30 import android.text.Spannable; 31 import android.text.TextUtils; 32 import android.util.Log; 33 import android.view.LayoutInflater; 34 import android.view.View; 35 import android.view.View.OnClickListener; 36 import android.view.View.OnFocusChangeListener; 37 import android.view.ViewGroup; 38 import android.widget.Button; 39 import android.widget.EditText; 40 import android.widget.TextView; 41 42 import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 43 import com.android.settings.SettingsPreferenceFragment.SettingsDialogFragment; 44 import com.android.settings.core.InstrumentedPreferenceFragment; 45 46 public class ProxySelector extends InstrumentedPreferenceFragment implements DialogCreatable { 47 private static final String TAG = "ProxySelector"; 48 49 EditText mHostnameField; 50 EditText mPortField; 51 EditText mExclusionListField; 52 Button mOKButton; 53 Button mClearButton; 54 Button mDefaultButton; 55 56 private static final int ERROR_DIALOG_ID = 0; 57 58 private SettingsDialogFragment mDialogFragment; 59 private View mView; 60 61 @Override onCreate(Bundle icicle)62 public void onCreate(Bundle icicle) { 63 super.onCreate(icicle); 64 } 65 66 @Override onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)67 public View onCreateView(LayoutInflater inflater, ViewGroup container, 68 Bundle savedInstanceState) { 69 mView = inflater.inflate(R.layout.proxy, container, false); 70 initView(mView); 71 // TODO: Populate based on connection status 72 populateFields(); 73 return mView; 74 } 75 76 @Override onActivityCreated(Bundle savedInstanceState)77 public void onActivityCreated(Bundle savedInstanceState) { 78 super.onActivityCreated(savedInstanceState); 79 final DevicePolicyManager dpm = 80 (DevicePolicyManager)getActivity().getSystemService(Context.DEVICE_POLICY_SERVICE); 81 82 final boolean userSetGlobalProxy = (dpm.getGlobalProxyAdmin() == null); 83 // Disable UI if the Global Proxy is being controlled by a Device Admin 84 mHostnameField.setEnabled(userSetGlobalProxy); 85 mPortField.setEnabled(userSetGlobalProxy); 86 mExclusionListField.setEnabled(userSetGlobalProxy); 87 mOKButton.setEnabled(userSetGlobalProxy); 88 mClearButton.setEnabled(userSetGlobalProxy); 89 mDefaultButton.setEnabled(userSetGlobalProxy); 90 } 91 92 // Dialog management 93 94 @Override onCreateDialog(int id)95 public Dialog onCreateDialog(int id) { 96 if (id == ERROR_DIALOG_ID) { 97 String hostname = mHostnameField.getText().toString().trim(); 98 String portStr = mPortField.getText().toString().trim(); 99 String exclList = mExclusionListField.getText().toString().trim(); 100 String msg = getActivity().getString(validate(hostname, portStr, exclList)); 101 102 return new AlertDialog.Builder(getActivity()) 103 .setTitle(R.string.proxy_error) 104 .setPositiveButton(R.string.proxy_error_dismiss, null) 105 .setMessage(msg) 106 .create(); 107 } 108 return null; 109 } 110 111 @Override getDialogMetricsCategory(int dialogId)112 public int getDialogMetricsCategory(int dialogId) { 113 return MetricsEvent.DIALOG_PROXY_SELECTOR_ERROR; 114 } 115 showDialog(int dialogId)116 private void showDialog(int dialogId) { 117 if (mDialogFragment != null) { 118 Log.e(TAG, "Old dialog fragment not null!"); 119 } 120 mDialogFragment = new SettingsDialogFragment(this, dialogId); 121 mDialogFragment.show(getActivity().getFragmentManager(), Integer.toString(dialogId)); 122 } 123 initView(View view)124 private void initView(View view) { 125 mHostnameField = (EditText)view.findViewById(R.id.hostname); 126 mHostnameField.setOnFocusChangeListener(mOnFocusChangeHandler); 127 128 mPortField = (EditText)view.findViewById(R.id.port); 129 mPortField.setOnClickListener(mOKHandler); 130 mPortField.setOnFocusChangeListener(mOnFocusChangeHandler); 131 132 mExclusionListField = (EditText)view.findViewById(R.id.exclusionlist); 133 mExclusionListField.setOnFocusChangeListener(mOnFocusChangeHandler); 134 135 mOKButton = (Button)view.findViewById(R.id.action); 136 mOKButton.setOnClickListener(mOKHandler); 137 138 mClearButton = (Button)view.findViewById(R.id.clear); 139 mClearButton.setOnClickListener(mClearHandler); 140 141 mDefaultButton = (Button)view.findViewById(R.id.defaultView); 142 mDefaultButton.setOnClickListener(mDefaultHandler); 143 } 144 populateFields()145 void populateFields() { 146 final Activity activity = getActivity(); 147 String hostname = ""; 148 int port = -1; 149 String exclList = ""; 150 // Use the last setting given by the user 151 ConnectivityManager cm = 152 (ConnectivityManager)getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 153 154 ProxyInfo proxy = cm.getGlobalProxy(); 155 if (proxy != null) { 156 hostname = proxy.getHost(); 157 port = proxy.getPort(); 158 exclList = proxy.getExclusionListAsString(); 159 } 160 161 if (hostname == null) { 162 hostname = ""; 163 } 164 165 mHostnameField.setText(hostname); 166 167 String portStr = port == -1 ? "" : Integer.toString(port); 168 mPortField.setText(portStr); 169 170 mExclusionListField.setText(exclList); 171 172 final Intent intent = activity.getIntent(); 173 174 String buttonLabel = intent.getStringExtra("button-label"); 175 if (!TextUtils.isEmpty(buttonLabel)) { 176 mOKButton.setText(buttonLabel); 177 } 178 179 String title = intent.getStringExtra("title"); 180 if (!TextUtils.isEmpty(title)) { 181 activity.setTitle(title); 182 } 183 } 184 185 /** 186 * validate syntax of hostname and port entries 187 * @return 0 on success, string resource ID on failure 188 */ validate(String hostname, String port, String exclList)189 public static int validate(String hostname, String port, String exclList) { 190 switch (Proxy.validate(hostname, port, exclList)) { 191 case Proxy.PROXY_VALID: 192 return 0; 193 case Proxy.PROXY_HOSTNAME_EMPTY: 194 return R.string.proxy_error_empty_host_set_port; 195 case Proxy.PROXY_HOSTNAME_INVALID: 196 return R.string.proxy_error_invalid_host; 197 case Proxy.PROXY_PORT_EMPTY: 198 return R.string.proxy_error_empty_port; 199 case Proxy.PROXY_PORT_INVALID: 200 return R.string.proxy_error_invalid_port; 201 case Proxy.PROXY_EXCLLIST_INVALID: 202 return R.string.proxy_error_invalid_exclusion_list; 203 default: 204 // should neven happen 205 Log.e(TAG, "Unknown proxy settings error"); 206 return -1; 207 } 208 } 209 210 /** 211 * returns true on success, false if the user must correct something 212 */ saveToDb()213 boolean saveToDb() { 214 215 String hostname = mHostnameField.getText().toString().trim(); 216 String portStr = mPortField.getText().toString().trim(); 217 String exclList = mExclusionListField.getText().toString().trim(); 218 int port = 0; 219 220 int result = validate(hostname, portStr, exclList); 221 if (result != 0) { 222 showDialog(ERROR_DIALOG_ID); 223 return false; 224 } 225 226 if (portStr.length() > 0) { 227 try { 228 port = Integer.parseInt(portStr); 229 } catch (NumberFormatException ex) { 230 // should never happen - caught by validate above 231 return false; 232 } 233 } 234 ProxyInfo p = new ProxyInfo(hostname, port, exclList); 235 // FIXME: The best solution would be to make a better UI that would 236 // disable editing of the text boxes if the user chooses to use the 237 // default settings. i.e. checking a box to always use the default 238 // carrier. http:/b/issue?id=756480 239 // FIXME: If the user types in a proxy that matches the default, should 240 // we keep that setting? Can be fixed with a new UI. 241 ConnectivityManager cm = 242 (ConnectivityManager)getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 243 244 cm.setGlobalProxy(p); 245 return true; 246 } 247 248 OnClickListener mOKHandler = new OnClickListener() { 249 public void onClick(View v) { 250 if (saveToDb()) { 251 getActivity().onBackPressed(); 252 } 253 } 254 }; 255 256 OnClickListener mClearHandler = new OnClickListener() { 257 public void onClick(View v) { 258 mHostnameField.setText(""); 259 mPortField.setText(""); 260 mExclusionListField.setText(""); 261 } 262 }; 263 264 OnClickListener mDefaultHandler = new OnClickListener() { 265 public void onClick(View v) { 266 // TODO: populate based on connection status 267 populateFields(); 268 } 269 }; 270 271 OnFocusChangeListener mOnFocusChangeHandler = new OnFocusChangeListener() { 272 public void onFocusChange(View v, boolean hasFocus) { 273 if (hasFocus) { 274 TextView textView = (TextView) v; 275 Selection.selectAll((Spannable) textView.getText()); 276 } 277 } 278 }; 279 280 @Override getMetricsCategory()281 public int getMetricsCategory() { 282 return MetricsEvent.PROXY_SELECTOR; 283 } 284 } 285