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