Initial Contribution

1 files changed, 260 insertions, 0 deletions

diff --git a/src/com/android/settings/ProxySelector.java b/src/com/android/settings/ProxySelector.java
new file mode 100644
index 0000000..d320e73
--- /dev/null
+++ b/src/com/android/settings/ProxySelector.java
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+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.ContentResolver;
+import android.content.Intent;
+import android.net.Proxy;
+import android.os.Bundle;
+import android.provider.Settings;
+import android.text.Selection;
+import android.text.Spannable;
+import android.text.TextUtils;
+import android.util.Log;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.View.OnFocusChangeListener;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * To start the Proxy Selector activity, create the following intent.
+ *
+ * <code>
+ *      Intent intent = new Intent();
+ *      intent.setClassName("com.android.browser.ProxySelector");
+ *      startActivity(intent);
+ * </code>
+ *
+ * you can add extra options to the intent by using
+ *
+ * <code>
+ *   intent.putExtra(key, value);
+ * </code>
+ *
+ * the extra options are:
+ *
+ * button-label: a string label to display for the okay button
+ * title:        the title of the window
+ * error-text:   If not null, will be used as the label of the error message.
+ */
+public class ProxySelector extends Activity
+{
+    private final static String LOGTAG = "Settings";
+
+    EditText    mHostnameField;
+    EditText    mPortField;
+    Button      mOKButton;
+
+    // Matches blank input, ips, and domain names
+    private static final String HOSTNAME_REGEXP = "^$|^[a-zA-Z0-9]+(\\-[a-zA-Z0-9]+)*(\\.[a-zA-Z0-9]+(\\-[a-zA-Z0-9]+)*)*$";
+    private static final Pattern HOSTNAME_PATTERN;
+    static {
+        HOSTNAME_PATTERN = Pattern.compile(HOSTNAME_REGEXP);
+    }
+
+
+    public void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+
+        if (android.util.Config.LOGV) Log.v(LOGTAG, "[ProxySelector] onStart");
+
+        setContentView(R.layout.proxy);
+        initView();
+        populateFields(false);
+    }
+
+    protected void showError(int error) {
+
+        new AlertDialog.Builder(this)
+                .setTitle(R.string.proxy_error)
+                .setMessage(error)
+                .setPositiveButton(R.string.proxy_error_dismiss, null)
+                .show();
+    }
+
+    void initView() {
+
+        mHostnameField = (EditText)findViewById(R.id.hostname);
+        mHostnameField.setOnFocusChangeListener(mOnFocusChangeHandler);
+
+        mPortField = (EditText)findViewById(R.id.port);
+        mPortField.setOnClickListener(mOKHandler);
+        mPortField.setOnFocusChangeListener(mOnFocusChangeHandler);
+
+        mOKButton = (Button)findViewById(R.id.action);
+        mOKButton.setOnClickListener(mOKHandler);
+
+        Button b = (Button)findViewById(R.id.clear);
+        b.setOnClickListener(mClearHandler);
+
+        b = (Button)findViewById(R.id.defaultView);
+        b.setOnClickListener(mDefaultHandler);
+    }
+
+    void populateFields(boolean useDefault) {
+        String hostname = null;
+        int port = -1;
+        if (useDefault) {
+            // Use the default proxy settings provided by the carrier
+            hostname = Proxy.getDefaultHost();
+            port = Proxy.getDefaultPort();
+        } else {
+            // Use the last setting given by the user
+            hostname = Proxy.getHost(this);
+            port = Proxy.getPort(this);
+        }
+
+        if (hostname == null) {
+            hostname = "";
+        }
+
+        mHostnameField.setText(hostname);
+
+        String portStr = port == -1 ? "" : Integer.toString(port);
+        mPortField.setText(portStr);
+
+        Intent intent = getIntent();
+
+        String buttonLabel = intent.getStringExtra("button-label");
+        if (!TextUtils.isEmpty(buttonLabel)) {
+            mOKButton.setText(buttonLabel);
+        }
+
+        String title = intent.getStringExtra("title");
+        if (!TextUtils.isEmpty(title)) {
+            setTitle(title);
+        }
+    }
+
+    /**
+     * validate syntax of hostname and port entries
+     * @return 0 on success, string resource ID on failure
+     */
+    int validate(String hostname, String port) {
+        Matcher match = HOSTNAME_PATTERN.matcher(hostname);
+
+        if (!match.matches()) return R.string.proxy_error_invalid_host;
+
+        if (hostname.length() > 0 && port.length() == 0) {
+            return R.string.proxy_error_empty_port;
+        }
+
+        if (port.length() > 0) {
+            if (hostname.length() == 0) {
+                return R.string.proxy_error_empty_host_set_port;
+            }
+            int portVal = -1;
+            try {
+                portVal = Integer.parseInt(port);
+            } catch (NumberFormatException ex) {
+                return R.string.proxy_error_invalid_port;
+            }
+            if (portVal <= 0 || portVal > 0xFFFF) {
+                return R.string.proxy_error_invalid_port;
+            }
+        }
+        return 0;
+    }
+
+    /**
+     * returns true on success, false if the user must correct something
+     */
+    boolean saveToDb() {
+
+        String hostname = mHostnameField.getText().toString().trim();
+        String portStr = mPortField.getText().toString().trim();
+        int port = -1;
+
+        int result = validate(hostname, portStr);
+        if (result > 0) {
+            showError(result);
+            return false;
+        }
+
+        if (portStr.length() > 0) {
+            try {
+                port = Integer.parseInt(portStr);
+            } catch (NumberFormatException ex) {
+                return false;
+            }
+        }
+
+        // FIXME: The best solution would be to make a better UI that would
+        // disable editing of the text boxes if the user chooses to use the
+        // default settings. i.e. checking a box to always use the default
+        // carrier. http:/b/issue?id=756480
+        // FIXME: This currently will not work if the default host is blank and
+        // the user has cleared the input boxes in order to not use a proxy.
+        // This is a UI problem and can be solved with some better form
+        // controls.
+        // FIXME: If the user types in a proxy that matches the default, should
+        // we keep that setting? Can be fixed with a new UI.
+        ContentResolver res = getContentResolver();
+        if (hostname.equals(Proxy.getDefaultHost())
+                && port == Proxy.getDefaultPort()) {
+            // If the user hit the default button and didn't change any of
+            // the input boxes, treat it as if the user has not specified a
+            // proxy.
+            hostname = null;
+        }
+
+        if (!TextUtils.isEmpty(hostname)) {
+            hostname += ':' + portStr;
+        }
+        Settings.System.putString(res, Settings.System.HTTP_PROXY, hostname);
+        sendBroadcast(new Intent(Proxy.PROXY_CHANGE_ACTION));
+
+        return true;
+    }
+
+    OnClickListener mOKHandler = new OnClickListener() {
+            public void onClick(View v) {
+                if (saveToDb()) {
+                    finish();
+                }
+            }
+        };
+
+    OnClickListener mClearHandler = new OnClickListener() {
+            public void onClick(View v) {
+                mHostnameField.setText("");
+                mPortField.setText("");
+            }
+        };
+
+    OnClickListener mDefaultHandler = new OnClickListener() {
+            public void onClick(View v) {
+                populateFields(true);
+            }
+        };
+
+    OnFocusChangeListener mOnFocusChangeHandler = new OnFocusChangeListener() {
+            public void onFocusChange(View v, boolean hasFocus) {
+                if (hasFocus) {
+                    TextView textView = (TextView) v;
+                    Selection.selectAll((Spannable) textView.getText());
+                }
+            }
+        };
+}