1222 lines
46 KiB
Java
1222 lines
46 KiB
Java
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.emailcommon.utility;
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import android.app.Activity;
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import android.app.Fragment;
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import android.content.ContentResolver;
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import android.content.ContentUris;
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import android.content.ContentValues;
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import android.content.Context;
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import android.database.Cursor;
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import android.database.CursorWrapper;
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import android.graphics.Typeface;
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import android.net.Uri;
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import android.os.AsyncTask;
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import android.os.Environment;
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import android.os.Handler;
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import android.os.Looper;
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import android.os.StrictMode;
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import android.provider.OpenableColumns;
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import android.text.Spannable;
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import android.text.SpannableString;
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import android.text.SpannableStringBuilder;
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import android.text.TextUtils;
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import android.text.style.StyleSpan;
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import android.util.Base64;
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import android.util.Log;
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import android.widget.ListView;
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import android.widget.TextView;
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import android.widget.Toast;
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import com.android.emailcommon.Logging;
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import com.android.emailcommon.provider.Account;
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import com.android.emailcommon.provider.EmailContent;
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import com.android.emailcommon.provider.EmailContent.AccountColumns;
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import com.android.emailcommon.provider.EmailContent.Attachment;
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import com.android.emailcommon.provider.EmailContent.AttachmentColumns;
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import com.android.emailcommon.provider.EmailContent.HostAuthColumns;
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import com.android.emailcommon.provider.EmailContent.MailboxColumns;
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import com.android.emailcommon.provider.EmailContent.Message;
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import com.android.emailcommon.provider.EmailContent.MessageColumns;
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import com.android.emailcommon.provider.HostAuth;
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import com.android.emailcommon.provider.Mailbox;
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import com.android.emailcommon.provider.ProviderUnavailableException;
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import java.io.ByteArrayInputStream;
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import java.io.File;
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import java.io.FileDescriptor;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.io.UnsupportedEncodingException;
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import java.net.URI;
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import java.net.URISyntaxException;
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import java.nio.ByteBuffer;
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import java.nio.CharBuffer;
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import java.nio.charset.Charset;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.GregorianCalendar;
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import java.util.HashSet;
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import java.util.Set;
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import java.util.TimeZone;
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import java.util.regex.Pattern;
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public class Utility {
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public static final Charset UTF_8 = Charset.forName("UTF-8");
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public static final Charset ASCII = Charset.forName("US-ASCII");
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public static final String[] EMPTY_STRINGS = new String[0];
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public static final Long[] EMPTY_LONGS = new Long[0];
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// "GMT" + "+" or "-" + 4 digits
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private static final Pattern DATE_CLEANUP_PATTERN_WRONG_TIMEZONE =
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Pattern.compile("GMT([-+]\\d{4})$");
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private static Handler sMainThreadHandler;
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/**
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* @return a {@link Handler} tied to the main thread.
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*/
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public static Handler getMainThreadHandler() {
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if (sMainThreadHandler == null) {
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// No need to synchronize -- it's okay to create an extra Handler, which will be used
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// only once and then thrown away.
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sMainThreadHandler = new Handler(Looper.getMainLooper());
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}
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return sMainThreadHandler;
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}
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public final static String readInputStream(InputStream in, String encoding) throws IOException {
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InputStreamReader reader = new InputStreamReader(in, encoding);
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StringBuffer sb = new StringBuffer();
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int count;
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char[] buf = new char[512];
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while ((count = reader.read(buf)) != -1) {
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sb.append(buf, 0, count);
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}
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return sb.toString();
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}
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public final static boolean arrayContains(Object[] a, Object o) {
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int index = arrayIndex(a, o);
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return (index >= 0);
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}
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public final static int arrayIndex(Object[] a, Object o) {
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for (int i = 0, count = a.length; i < count; i++) {
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if (a[i].equals(o)) {
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return i;
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}
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}
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return -1;
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}
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/**
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* Returns a concatenated string containing the output of every Object's
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* toString() method, each separated by the given separator character.
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*/
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public static String combine(Object[] parts, char separator) {
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if (parts == null) {
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return null;
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}
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StringBuffer sb = new StringBuffer();
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for (int i = 0; i < parts.length; i++) {
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sb.append(parts[i].toString());
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if (i < parts.length - 1) {
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sb.append(separator);
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}
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}
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return sb.toString();
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}
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public static String base64Decode(String encoded) {
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if (encoded == null) {
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return null;
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}
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byte[] decoded = Base64.decode(encoded, Base64.DEFAULT);
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return new String(decoded);
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}
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public static String base64Encode(String s) {
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if (s == null) {
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return s;
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}
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return Base64.encodeToString(s.getBytes(), Base64.NO_WRAP);
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}
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public static boolean isTextViewNotEmpty(TextView view) {
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return !TextUtils.isEmpty(view.getText());
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}
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public static boolean isPortFieldValid(TextView view) {
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CharSequence chars = view.getText();
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if (TextUtils.isEmpty(chars)) return false;
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Integer port;
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// In theory, we can't get an illegal value here, since the field is monitored for valid
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// numeric input. But this might be used elsewhere without such a check.
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try {
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port = Integer.parseInt(chars.toString());
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} catch (NumberFormatException e) {
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return false;
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}
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return port > 0 && port < 65536;
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}
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/**
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* Validate a hostname name field.
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*
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* Because we just use the {@link URI} class for validation, it'll accept some invalid
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* host names, but it works well enough...
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*/
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public static boolean isServerNameValid(TextView view) {
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return isServerNameValid(view.getText().toString());
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}
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public static boolean isServerNameValid(String serverName) {
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serverName = serverName.trim();
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if (TextUtils.isEmpty(serverName)) {
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return false;
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}
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try {
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URI uri = new URI(
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"http",
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null,
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serverName,
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-1,
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null, // path
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null, // query
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null);
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return true;
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} catch (URISyntaxException e) {
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return false;
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}
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}
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/**
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* Ensures that the given string starts and ends with the double quote character. The string is
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* not modified in any way except to add the double quote character to start and end if it's not
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* already there.
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*
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* TODO: Rename this, because "quoteString()" can mean so many different things.
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*
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* sample -> "sample"
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* "sample" -> "sample"
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* ""sample"" -> "sample"
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* "sample"" -> "sample"
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* sa"mp"le -> "sa"mp"le"
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* "sa"mp"le" -> "sa"mp"le"
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* (empty string) -> ""
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* " -> ""
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*/
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public static String quoteString(String s) {
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if (s == null) {
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return null;
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}
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if (!s.matches("^\".*\"$")) {
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return "\"" + s + "\"";
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}
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else {
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return s;
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}
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}
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/**
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* A fast version of URLDecoder.decode() that works only with UTF-8 and does only two
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* allocations. This version is around 3x as fast as the standard one and I'm using it
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* hundreds of times in places that slow down the UI, so it helps.
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*/
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public static String fastUrlDecode(String s) {
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try {
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byte[] bytes = s.getBytes("UTF-8");
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byte ch;
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int length = 0;
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for (int i = 0, count = bytes.length; i < count; i++) {
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ch = bytes[i];
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if (ch == '%') {
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int h = (bytes[i + 1] - '0');
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int l = (bytes[i + 2] - '0');
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if (h > 9) {
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h -= 7;
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}
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if (l > 9) {
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l -= 7;
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}
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bytes[length] = (byte) ((h << 4) | l);
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i += 2;
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}
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else if (ch == '+') {
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bytes[length] = ' ';
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}
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else {
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bytes[length] = bytes[i];
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}
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length++;
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}
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return new String(bytes, 0, length, "UTF-8");
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}
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catch (UnsupportedEncodingException uee) {
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return null;
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}
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}
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private final static String HOSTAUTH_WHERE_CREDENTIALS = HostAuthColumns.ADDRESS + " like ?"
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+ " and " + HostAuthColumns.LOGIN + " like ? ESCAPE '\\'"
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+ " and " + HostAuthColumns.PROTOCOL + " not like \"smtp\"";
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private final static String ACCOUNT_WHERE_HOSTAUTH = AccountColumns.HOST_AUTH_KEY_RECV + "=?";
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/**
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* Look for an existing account with the same username & server
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*
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* @param context a system context
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* @param allowAccountId this account Id will not trigger (when editing an existing account)
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* @param hostName the server's address
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* @param userLogin the user's login string
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* @result null = no matching account found. Account = matching account
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*/
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public static Account findExistingAccount(Context context, long allowAccountId,
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String hostName, String userLogin) {
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ContentResolver resolver = context.getContentResolver();
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String userName = userLogin.replace("_", "\\_");
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Cursor c = resolver.query(HostAuth.CONTENT_URI, HostAuth.ID_PROJECTION,
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HOSTAUTH_WHERE_CREDENTIALS, new String[] { hostName, userName }, null);
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if (c == null) throw new ProviderUnavailableException();
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try {
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while (c.moveToNext()) {
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long hostAuthId = c.getLong(HostAuth.ID_PROJECTION_COLUMN);
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// Find account with matching hostauthrecv key, and return it
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Cursor c2 = resolver.query(Account.CONTENT_URI, Account.ID_PROJECTION,
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ACCOUNT_WHERE_HOSTAUTH, new String[] { Long.toString(hostAuthId) }, null);
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try {
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while (c2.moveToNext()) {
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long accountId = c2.getLong(Account.ID_PROJECTION_COLUMN);
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if (accountId != allowAccountId) {
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Account account = Account.restoreAccountWithId(context, accountId);
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if (account != null) {
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return account;
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}
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}
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}
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} finally {
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c2.close();
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}
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}
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} finally {
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c.close();
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}
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return null;
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}
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/**
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* Generate a random message-id header for locally-generated messages.
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*/
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public static String generateMessageId() {
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StringBuffer sb = new StringBuffer();
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sb.append("<");
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for (int i = 0; i < 24; i++) {
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sb.append(Integer.toString((int)(Math.random() * 35), 36));
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}
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sb.append(".");
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sb.append(Long.toString(System.currentTimeMillis()));
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sb.append("@email.android.com>");
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return sb.toString();
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}
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/**
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* Generate a time in milliseconds from a date string that represents a date/time in GMT
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* @param date string in format 20090211T180303Z (rfc2445, iCalendar).
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* @return the time in milliseconds (since Jan 1, 1970)
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*/
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public static long parseDateTimeToMillis(String date) {
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GregorianCalendar cal = parseDateTimeToCalendar(date);
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return cal.getTimeInMillis();
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}
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/**
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* Generate a GregorianCalendar from a date string that represents a date/time in GMT
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* @param date string in format 20090211T180303Z (rfc2445, iCalendar).
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* @return the GregorianCalendar
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*/
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public static GregorianCalendar parseDateTimeToCalendar(String date) {
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GregorianCalendar cal = new GregorianCalendar(Integer.parseInt(date.substring(0, 4)),
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Integer.parseInt(date.substring(4, 6)) - 1, Integer.parseInt(date.substring(6, 8)),
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Integer.parseInt(date.substring(9, 11)), Integer.parseInt(date.substring(11, 13)),
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Integer.parseInt(date.substring(13, 15)));
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cal.setTimeZone(TimeZone.getTimeZone("GMT"));
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return cal;
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}
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/**
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* Generate a time in milliseconds from an email date string that represents a date/time in GMT
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* @param date string in format 2010-02-23T16:00:00.000Z (ISO 8601, rfc3339)
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* @return the time in milliseconds (since Jan 1, 1970)
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*/
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public static long parseEmailDateTimeToMillis(String date) {
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GregorianCalendar cal = new GregorianCalendar(Integer.parseInt(date.substring(0, 4)),
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Integer.parseInt(date.substring(5, 7)) - 1, Integer.parseInt(date.substring(8, 10)),
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Integer.parseInt(date.substring(11, 13)), Integer.parseInt(date.substring(14, 16)),
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Integer.parseInt(date.substring(17, 19)));
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cal.setTimeZone(TimeZone.getTimeZone("GMT"));
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return cal.getTimeInMillis();
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}
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private static byte[] encode(Charset charset, String s) {
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if (s == null) {
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return null;
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}
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final ByteBuffer buffer = charset.encode(CharBuffer.wrap(s));
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final byte[] bytes = new byte[buffer.limit()];
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buffer.get(bytes);
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return bytes;
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}
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private static String decode(Charset charset, byte[] b) {
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if (b == null) {
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return null;
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}
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final CharBuffer cb = charset.decode(ByteBuffer.wrap(b));
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return new String(cb.array(), 0, cb.length());
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}
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/** Converts a String to UTF-8 */
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public static byte[] toUtf8(String s) {
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return encode(UTF_8, s);
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}
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/** Builds a String from UTF-8 bytes */
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public static String fromUtf8(byte[] b) {
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return decode(UTF_8, b);
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}
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/** Converts a String to ASCII bytes */
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public static byte[] toAscii(String s) {
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return encode(ASCII, s);
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}
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/** Builds a String from ASCII bytes */
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public static String fromAscii(byte[] b) {
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return decode(ASCII, b);
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}
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/**
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* @return true if the input is the first (or only) byte in a UTF-8 character
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*/
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public static boolean isFirstUtf8Byte(byte b) {
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// If the top 2 bits is '10', it's not a first byte.
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return (b & 0xc0) != 0x80;
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}
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public static String byteToHex(int b) {
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return byteToHex(new StringBuilder(), b).toString();
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}
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public static StringBuilder byteToHex(StringBuilder sb, int b) {
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b &= 0xFF;
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sb.append("0123456789ABCDEF".charAt(b >> 4));
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sb.append("0123456789ABCDEF".charAt(b & 0xF));
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return sb;
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}
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public static String replaceBareLfWithCrlf(String str) {
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return str.replace("\r", "").replace("\n", "\r\n");
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}
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/**
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* Cancel an {@link AsyncTask}. If it's already running, it'll be interrupted.
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*/
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public static void cancelTaskInterrupt(AsyncTask<?, ?, ?> task) {
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cancelTask(task, true);
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}
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/**
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* Cancel an {@link EmailAsyncTask}. If it's already running, it'll be interrupted.
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*/
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public static void cancelTaskInterrupt(EmailAsyncTask<?, ?, ?> task) {
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if (task != null) {
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task.cancel(true);
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}
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}
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/**
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* Cancel an {@link AsyncTask}.
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*
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* @param mayInterruptIfRunning <tt>true</tt> if the thread executing this
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* task should be interrupted; otherwise, in-progress tasks are allowed
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* to complete.
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*/
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public static void cancelTask(AsyncTask<?, ?, ?> task, boolean mayInterruptIfRunning) {
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if (task != null && task.getStatus() != AsyncTask.Status.FINISHED) {
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task.cancel(mayInterruptIfRunning);
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}
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}
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public static String getSmallHash(final String value) {
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final MessageDigest sha;
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try {
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sha = MessageDigest.getInstance("SHA-1");
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} catch (NoSuchAlgorithmException impossible) {
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return null;
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}
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sha.update(Utility.toUtf8(value));
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final int hash = getSmallHashFromSha1(sha.digest());
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return Integer.toString(hash);
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}
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/**
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* @return a non-negative integer generated from 20 byte SHA-1 hash.
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*/
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/* package for testing */ static int getSmallHashFromSha1(byte[] sha1) {
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final int offset = sha1[19] & 0xf; // SHA1 is 20 bytes.
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return ((sha1[offset] & 0x7f) << 24)
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| ((sha1[offset + 1] & 0xff) << 16)
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| ((sha1[offset + 2] & 0xff) << 8)
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| ((sha1[offset + 3] & 0xff));
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}
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/**
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* Try to make a date MIME(RFC 2822/5322)-compliant.
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*
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* It fixes:
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* - "Thu, 10 Dec 09 15:08:08 GMT-0700" to "Thu, 10 Dec 09 15:08:08 -0700"
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* (4 digit zone value can't be preceded by "GMT")
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* We got a report saying eBay sends a date in this format
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*/
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public static String cleanUpMimeDate(String date) {
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if (TextUtils.isEmpty(date)) {
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return date;
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}
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date = DATE_CLEANUP_PATTERN_WRONG_TIMEZONE.matcher(date).replaceFirst("$1");
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return date;
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}
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public static ByteArrayInputStream streamFromAsciiString(String ascii) {
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return new ByteArrayInputStream(toAscii(ascii));
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}
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/**
|
|
* A thread safe way to show a Toast. Can be called from any thread.
|
|
*
|
|
* @param context context
|
|
* @param resId Resource ID of the message string.
|
|
*/
|
|
public static void showToast(Context context, int resId) {
|
|
showToast(context, context.getResources().getString(resId));
|
|
}
|
|
|
|
/**
|
|
* A thread safe way to show a Toast. Can be called from any thread.
|
|
*
|
|
* @param context context
|
|
* @param message Message to show.
|
|
*/
|
|
public static void showToast(final Context context, final String message) {
|
|
getMainThreadHandler().post(new Runnable() {
|
|
@Override
|
|
public void run() {
|
|
Toast.makeText(context, message, Toast.LENGTH_LONG).show();
|
|
}
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Run {@code r} on a worker thread, returning the AsyncTask
|
|
* @return the AsyncTask; this is primarily for use by unit tests, which require the
|
|
* result of the task
|
|
*
|
|
* @deprecated use {@link EmailAsyncTask#runAsyncParallel} or
|
|
* {@link EmailAsyncTask#runAsyncSerial}
|
|
*/
|
|
@Deprecated
|
|
public static AsyncTask<Void, Void, Void> runAsync(final Runnable r) {
|
|
return new AsyncTask<Void, Void, Void>() {
|
|
@Override protected Void doInBackground(Void... params) {
|
|
r.run();
|
|
return null;
|
|
}
|
|
}.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
|
|
}
|
|
|
|
/**
|
|
* Interface used in {@link #createUniqueFile} instead of {@link File#createNewFile()} to make
|
|
* it testable.
|
|
*/
|
|
/* package */ interface NewFileCreator {
|
|
public static final NewFileCreator DEFAULT = new NewFileCreator() {
|
|
@Override public boolean createNewFile(File f) throws IOException {
|
|
return f.createNewFile();
|
|
}
|
|
};
|
|
public boolean createNewFile(File f) throws IOException ;
|
|
}
|
|
|
|
/**
|
|
* Creates a new empty file with a unique name in the given directory by appending a hyphen and
|
|
* a number to the given filename.
|
|
*
|
|
* @return a new File object, or null if one could not be created
|
|
*/
|
|
public static File createUniqueFile(File directory, String filename) throws IOException {
|
|
return createUniqueFileInternal(NewFileCreator.DEFAULT, directory, filename);
|
|
}
|
|
|
|
/* package */ static File createUniqueFileInternal(NewFileCreator nfc,
|
|
File directory, String filename) throws IOException {
|
|
File file = new File(directory, filename);
|
|
if (nfc.createNewFile(file)) {
|
|
return file;
|
|
}
|
|
// Get the extension of the file, if any.
|
|
int index = filename.lastIndexOf('.');
|
|
String format;
|
|
if (index != -1) {
|
|
String name = filename.substring(0, index);
|
|
String extension = filename.substring(index);
|
|
format = name + "-%d" + extension;
|
|
} else {
|
|
format = filename + "-%d";
|
|
}
|
|
|
|
for (int i = 2; i < Integer.MAX_VALUE; i++) {
|
|
file = new File(directory, String.format(format, i));
|
|
if (nfc.createNewFile(file)) {
|
|
return file;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
public interface CursorGetter<T> {
|
|
T get(Cursor cursor, int column);
|
|
}
|
|
|
|
private static final CursorGetter<Long> LONG_GETTER = new CursorGetter<Long>() {
|
|
@Override
|
|
public Long get(Cursor cursor, int column) {
|
|
return cursor.getLong(column);
|
|
}
|
|
};
|
|
|
|
private static final CursorGetter<Integer> INT_GETTER = new CursorGetter<Integer>() {
|
|
@Override
|
|
public Integer get(Cursor cursor, int column) {
|
|
return cursor.getInt(column);
|
|
}
|
|
};
|
|
|
|
private static final CursorGetter<String> STRING_GETTER = new CursorGetter<String>() {
|
|
@Override
|
|
public String get(Cursor cursor, int column) {
|
|
return cursor.getString(column);
|
|
}
|
|
};
|
|
|
|
private static final CursorGetter<byte[]> BLOB_GETTER = new CursorGetter<byte[]>() {
|
|
@Override
|
|
public byte[] get(Cursor cursor, int column) {
|
|
return cursor.getBlob(column);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* @return if {@code original} is to the EmailProvider, add "?limit=1". Otherwise just returns
|
|
* {@code original}.
|
|
*
|
|
* Other providers don't support the limit param. Also, changing URI passed from other apps
|
|
* can cause permission errors.
|
|
*/
|
|
/* package */ static Uri buildLimitOneUri(Uri original) {
|
|
if ("content".equals(original.getScheme()) &&
|
|
EmailContent.AUTHORITY.equals(original.getAuthority())) {
|
|
return EmailContent.uriWithLimit(original, 1);
|
|
}
|
|
return original;
|
|
}
|
|
|
|
/**
|
|
* @return a generic in column {@code column} of the first result row, if the query returns at
|
|
* least 1 row. Otherwise returns {@code defaultValue}.
|
|
*/
|
|
public static <T extends Object> T getFirstRowColumn(Context context, Uri uri,
|
|
String[] projection, String selection, String[] selectionArgs, String sortOrder,
|
|
int column, T defaultValue, CursorGetter<T> getter) {
|
|
// Use PARAMETER_LIMIT to restrict the query to the single row we need
|
|
uri = buildLimitOneUri(uri);
|
|
Cursor c = context.getContentResolver().query(uri, projection, selection, selectionArgs,
|
|
sortOrder);
|
|
if (c != null) {
|
|
try {
|
|
if (c.moveToFirst()) {
|
|
return getter.get(c, column);
|
|
}
|
|
} finally {
|
|
c.close();
|
|
}
|
|
}
|
|
return defaultValue;
|
|
}
|
|
|
|
/**
|
|
* {@link #getFirstRowColumn} for a Long with null as a default value.
|
|
*/
|
|
public static Long getFirstRowLong(Context context, Uri uri, String[] projection,
|
|
String selection, String[] selectionArgs, String sortOrder, int column) {
|
|
return getFirstRowColumn(context, uri, projection, selection, selectionArgs,
|
|
sortOrder, column, null, LONG_GETTER);
|
|
}
|
|
|
|
/**
|
|
* {@link #getFirstRowColumn} for a Long with a provided default value.
|
|
*/
|
|
public static Long getFirstRowLong(Context context, Uri uri, String[] projection,
|
|
String selection, String[] selectionArgs, String sortOrder, int column,
|
|
Long defaultValue) {
|
|
return getFirstRowColumn(context, uri, projection, selection, selectionArgs,
|
|
sortOrder, column, defaultValue, LONG_GETTER);
|
|
}
|
|
|
|
/**
|
|
* {@link #getFirstRowColumn} for an Integer with null as a default value.
|
|
*/
|
|
public static Integer getFirstRowInt(Context context, Uri uri, String[] projection,
|
|
String selection, String[] selectionArgs, String sortOrder, int column) {
|
|
return getFirstRowColumn(context, uri, projection, selection, selectionArgs,
|
|
sortOrder, column, null, INT_GETTER);
|
|
}
|
|
|
|
/**
|
|
* {@link #getFirstRowColumn} for an Integer with a provided default value.
|
|
*/
|
|
public static Integer getFirstRowInt(Context context, Uri uri, String[] projection,
|
|
String selection, String[] selectionArgs, String sortOrder, int column,
|
|
Integer defaultValue) {
|
|
return getFirstRowColumn(context, uri, projection, selection, selectionArgs,
|
|
sortOrder, column, defaultValue, INT_GETTER);
|
|
}
|
|
|
|
/**
|
|
* {@link #getFirstRowColumn} for a String with null as a default value.
|
|
*/
|
|
public static String getFirstRowString(Context context, Uri uri, String[] projection,
|
|
String selection, String[] selectionArgs, String sortOrder, int column) {
|
|
return getFirstRowString(context, uri, projection, selection, selectionArgs, sortOrder,
|
|
column, null);
|
|
}
|
|
|
|
/**
|
|
* {@link #getFirstRowColumn} for a String with a provided default value.
|
|
*/
|
|
public static String getFirstRowString(Context context, Uri uri, String[] projection,
|
|
String selection, String[] selectionArgs, String sortOrder, int column,
|
|
String defaultValue) {
|
|
return getFirstRowColumn(context, uri, projection, selection, selectionArgs,
|
|
sortOrder, column, defaultValue, STRING_GETTER);
|
|
}
|
|
|
|
/**
|
|
* {@link #getFirstRowColumn} for a byte array with a provided default value.
|
|
*/
|
|
public static byte[] getFirstRowBlob(Context context, Uri uri, String[] projection,
|
|
String selection, String[] selectionArgs, String sortOrder, int column,
|
|
byte[] defaultValue) {
|
|
return getFirstRowColumn(context, uri, projection, selection, selectionArgs, sortOrder,
|
|
column, defaultValue, BLOB_GETTER);
|
|
}
|
|
|
|
public static boolean attachmentExists(Context context, Attachment attachment) {
|
|
if (attachment == null) {
|
|
return false;
|
|
} else if (attachment.mContentBytes != null) {
|
|
return true;
|
|
} else if (TextUtils.isEmpty(attachment.mContentUri)) {
|
|
return false;
|
|
}
|
|
try {
|
|
Uri fileUri = Uri.parse(attachment.mContentUri);
|
|
try {
|
|
InputStream inStream = context.getContentResolver().openInputStream(fileUri);
|
|
try {
|
|
inStream.close();
|
|
} catch (IOException e) {
|
|
// Nothing to be done if can't close the stream
|
|
}
|
|
return true;
|
|
} catch (FileNotFoundException e) {
|
|
return false;
|
|
}
|
|
} catch (RuntimeException re) {
|
|
Log.w(Logging.LOG_TAG, "attachmentExists RuntimeException=" + re);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check whether the message with a given id has unloaded attachments. If the message is
|
|
* a forwarded message, we look instead at the messages's source for the attachments. If the
|
|
* message or forward source can't be found, we return false
|
|
* @param context the caller's context
|
|
* @param messageId the id of the message
|
|
* @return whether or not the message has unloaded attachments
|
|
*/
|
|
public static boolean hasUnloadedAttachments(Context context, long messageId) {
|
|
Message msg = Message.restoreMessageWithId(context, messageId);
|
|
if (msg == null) return false;
|
|
Attachment[] atts = Attachment.restoreAttachmentsWithMessageId(context, messageId);
|
|
for (Attachment att: atts) {
|
|
if (!attachmentExists(context, att)) {
|
|
// If the attachment doesn't exist and isn't marked for download, we're in trouble
|
|
// since the outbound message will be stuck indefinitely in the Outbox. Instead,
|
|
// we'll just delete the attachment and continue; this is far better than the
|
|
// alternative. In theory, this situation shouldn't be possible.
|
|
if ((att.mFlags & (Attachment.FLAG_DOWNLOAD_FORWARD |
|
|
Attachment.FLAG_DOWNLOAD_USER_REQUEST)) == 0) {
|
|
Log.d(Logging.LOG_TAG, "Unloaded attachment isn't marked for download: " +
|
|
att.mFileName + ", #" + att.mId);
|
|
Attachment.delete(context, Attachment.CONTENT_URI, att.mId);
|
|
} else if (att.mContentUri != null) {
|
|
// In this case, the attachment file is gone from the cache; let's clear the
|
|
// contentUri; this should be a very unusual case
|
|
ContentValues cv = new ContentValues();
|
|
cv.putNull(AttachmentColumns.CONTENT_URI);
|
|
Attachment.update(context, Attachment.CONTENT_URI, att.mId, cv);
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Convenience method wrapping calls to retrieve columns from a single row, via EmailProvider.
|
|
* The arguments are exactly the same as to contentResolver.query(). Results are returned in
|
|
* an array of Strings corresponding to the columns in the projection. If the cursor has no
|
|
* rows, null is returned.
|
|
*/
|
|
public static String[] getRowColumns(Context context, Uri contentUri, String[] projection,
|
|
String selection, String[] selectionArgs) {
|
|
String[] values = new String[projection.length];
|
|
ContentResolver cr = context.getContentResolver();
|
|
Cursor c = cr.query(contentUri, projection, selection, selectionArgs, null);
|
|
try {
|
|
if (c.moveToFirst()) {
|
|
for (int i = 0; i < projection.length; i++) {
|
|
values[i] = c.getString(i);
|
|
}
|
|
} else {
|
|
return null;
|
|
}
|
|
} finally {
|
|
c.close();
|
|
}
|
|
return values;
|
|
}
|
|
|
|
/**
|
|
* Convenience method for retrieving columns from a particular row in EmailProvider.
|
|
* Passed in here are a base uri (e.g. Message.CONTENT_URI), the unique id of a row, and
|
|
* a projection. This method calls the previous one with the appropriate URI.
|
|
*/
|
|
public static String[] getRowColumns(Context context, Uri baseUri, long id,
|
|
String ... projection) {
|
|
return getRowColumns(context, ContentUris.withAppendedId(baseUri, id), projection, null,
|
|
null);
|
|
}
|
|
|
|
public static boolean isExternalStorageMounted() {
|
|
return Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);
|
|
}
|
|
|
|
/**
|
|
* Class that supports running any operation for each account.
|
|
*/
|
|
public abstract static class ForEachAccount extends AsyncTask<Void, Void, Long[]> {
|
|
private final Context mContext;
|
|
|
|
public ForEachAccount(Context context) {
|
|
mContext = context;
|
|
}
|
|
|
|
@Override
|
|
protected final Long[] doInBackground(Void... params) {
|
|
ArrayList<Long> ids = new ArrayList<Long>();
|
|
Cursor c = mContext.getContentResolver().query(Account.CONTENT_URI,
|
|
Account.ID_PROJECTION, null, null, null);
|
|
try {
|
|
while (c.moveToNext()) {
|
|
ids.add(c.getLong(Account.ID_PROJECTION_COLUMN));
|
|
}
|
|
} finally {
|
|
c.close();
|
|
}
|
|
return ids.toArray(EMPTY_LONGS);
|
|
}
|
|
|
|
@Override
|
|
protected final void onPostExecute(Long[] ids) {
|
|
if (ids != null && !isCancelled()) {
|
|
for (long id : ids) {
|
|
performAction(id);
|
|
}
|
|
}
|
|
onFinished();
|
|
}
|
|
|
|
/**
|
|
* This method will be called for each account.
|
|
*/
|
|
protected abstract void performAction(long accountId);
|
|
|
|
/**
|
|
* Called when the iteration is finished.
|
|
*/
|
|
protected void onFinished() {
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Updates the last seen message key in the mailbox data base for the INBOX of the currently
|
|
* shown account. If the account is {@link Account#ACCOUNT_ID_COMBINED_VIEW}, the INBOX for
|
|
* all accounts are updated.
|
|
* @return an {@link EmailAsyncTask} for test only.
|
|
*/
|
|
public static EmailAsyncTask<Void, Void, Void> updateLastNotifiedMessageKey(
|
|
final Context context, final long mailboxId) {
|
|
return EmailAsyncTask.runAsyncParallel(new Runnable() {
|
|
private void updateLastSeenMessageKeyForMailbox(long mailboxId) {
|
|
ContentResolver resolver = context.getContentResolver();
|
|
if (mailboxId == Mailbox.QUERY_ALL_INBOXES) {
|
|
Cursor c = resolver.query(
|
|
Mailbox.CONTENT_URI, EmailContent.ID_PROJECTION, Mailbox.TYPE + "=?",
|
|
new String[] { Integer.toString(Mailbox.TYPE_INBOX) }, null);
|
|
if (c == null) throw new ProviderUnavailableException();
|
|
try {
|
|
while (c.moveToNext()) {
|
|
final long id = c.getLong(EmailContent.ID_PROJECTION_COLUMN);
|
|
updateLastSeenMessageKeyForMailbox(id);
|
|
}
|
|
} finally {
|
|
c.close();
|
|
}
|
|
} else if (mailboxId > 0L) {
|
|
Mailbox mailbox = Mailbox.restoreMailboxWithId(context, mailboxId);
|
|
// mailbox has been removed
|
|
if (mailbox == null) {
|
|
return;
|
|
}
|
|
// We use the highest _id for the account the mailbox table as the "last seen
|
|
// message key". We don't care if the message has been read or not. We only
|
|
// need a point at which we can compare against in the future. By setting this
|
|
// value, we are claiming that every message before this has potentially been
|
|
// seen by the user.
|
|
long mostRecentMessageId = Utility.getFirstRowLong(context,
|
|
ContentUris.withAppendedId(
|
|
EmailContent.MAILBOX_MOST_RECENT_MESSAGE_URI, mailboxId),
|
|
Message.ID_COLUMN_PROJECTION, null, null, null,
|
|
Message.ID_MAILBOX_COLUMN_ID, -1L);
|
|
long lastNotifiedMessageId = mailbox.mLastNotifiedMessageKey;
|
|
// Only update the db if the value has changed
|
|
if (mostRecentMessageId != lastNotifiedMessageId) {
|
|
Log.d(Logging.LOG_TAG, "Most recent = " + mostRecentMessageId +
|
|
", last notified: " + lastNotifiedMessageId +
|
|
"; updating last notified");
|
|
ContentValues values = mailbox.toContentValues();
|
|
values.put(MailboxColumns.LAST_NOTIFIED_MESSAGE_KEY, mostRecentMessageId);
|
|
resolver.update(
|
|
Mailbox.CONTENT_URI,
|
|
values,
|
|
EmailContent.ID_SELECTION,
|
|
new String[] { Long.toString(mailbox.mId) });
|
|
} else {
|
|
Log.d(Logging.LOG_TAG, "Most recent = last notified; no change");
|
|
}
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public void run() {
|
|
updateLastSeenMessageKeyForMailbox(mailboxId);
|
|
}
|
|
});
|
|
}
|
|
|
|
public static long[] toPrimitiveLongArray(Collection<Long> collection) {
|
|
// Need to do this manually because we're converting to a primitive long array, not
|
|
// a Long array.
|
|
final int size = collection.size();
|
|
final long[] ret = new long[size];
|
|
// Collection doesn't have get(i). (Iterable doesn't have size())
|
|
int i = 0;
|
|
for (Long value : collection) {
|
|
ret[i++] = value;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
public static Set<Long> toLongSet(long[] array) {
|
|
// Need to do this manually because we're converting from a primitive long array, not
|
|
// a Long array.
|
|
final int size = array.length;
|
|
HashSet<Long> ret = new HashSet<Long>(size);
|
|
for (int i = 0; i < size; i++) {
|
|
ret.add(array[i]);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Workaround for the {@link ListView#smoothScrollToPosition} randomly scroll the view bug
|
|
* if it's called right after {@link ListView#setAdapter}.
|
|
*/
|
|
public static void listViewSmoothScrollToPosition(final Activity activity,
|
|
final ListView listView, final int position) {
|
|
// Workarond: delay-call smoothScrollToPosition()
|
|
new Handler().post(new Runnable() {
|
|
@Override
|
|
public void run() {
|
|
if (activity.isFinishing()) {
|
|
return; // Activity being destroyed
|
|
}
|
|
listView.smoothScrollToPosition(position);
|
|
}
|
|
});
|
|
}
|
|
|
|
private static final String[] ATTACHMENT_META_NAME_PROJECTION = {
|
|
OpenableColumns.DISPLAY_NAME
|
|
};
|
|
private static final int ATTACHMENT_META_NAME_COLUMN_DISPLAY_NAME = 0;
|
|
|
|
/**
|
|
* @return Filename of a content of {@code contentUri}. If the provider doesn't provide the
|
|
* filename, returns the last path segment of the URI.
|
|
*/
|
|
public static String getContentFileName(Context context, Uri contentUri) {
|
|
String name = getFirstRowString(context, contentUri, ATTACHMENT_META_NAME_PROJECTION, null,
|
|
null, null, ATTACHMENT_META_NAME_COLUMN_DISPLAY_NAME);
|
|
if (name == null) {
|
|
name = contentUri.getLastPathSegment();
|
|
}
|
|
return name;
|
|
}
|
|
|
|
/**
|
|
* Append a bold span to a {@link SpannableStringBuilder}.
|
|
*/
|
|
public static SpannableStringBuilder appendBold(SpannableStringBuilder ssb, String text) {
|
|
if (!TextUtils.isEmpty(text)) {
|
|
SpannableString ss = new SpannableString(text);
|
|
ss.setSpan(new StyleSpan(Typeface.BOLD), 0, ss.length(),
|
|
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
|
|
ssb.append(ss);
|
|
}
|
|
|
|
return ssb;
|
|
}
|
|
|
|
/**
|
|
* Stringify a cursor for logging purpose.
|
|
*/
|
|
public static String dumpCursor(Cursor c) {
|
|
StringBuilder sb = new StringBuilder();
|
|
sb.append("[");
|
|
while (c != null) {
|
|
sb.append(c.getClass()); // Class name may not be available if toString() is overridden
|
|
sb.append("/");
|
|
sb.append(c.toString());
|
|
if (c.isClosed()) {
|
|
sb.append(" (closed)");
|
|
}
|
|
if (c instanceof CursorWrapper) {
|
|
c = ((CursorWrapper) c).getWrappedCursor();
|
|
sb.append(", ");
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
sb.append("]");
|
|
return sb.toString();
|
|
}
|
|
|
|
/**
|
|
* Cursor wrapper that remembers where it was closed.
|
|
*
|
|
* Use {@link #get} to create a wrapped cursor.
|
|
* USe {@link #getTraceIfAvailable} to get the stack trace.
|
|
* Use {@link #log} to log if/where it was closed.
|
|
*/
|
|
public static class CloseTraceCursorWrapper extends CursorWrapper {
|
|
private static final boolean TRACE_ENABLED = false;
|
|
|
|
private Exception mTrace;
|
|
|
|
private CloseTraceCursorWrapper(Cursor cursor) {
|
|
super(cursor);
|
|
}
|
|
|
|
@Override
|
|
public void close() {
|
|
mTrace = new Exception("STACK TRACE");
|
|
super.close();
|
|
}
|
|
|
|
public static Exception getTraceIfAvailable(Cursor c) {
|
|
if (c instanceof CloseTraceCursorWrapper) {
|
|
return ((CloseTraceCursorWrapper) c).mTrace;
|
|
} else {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public static void log(Cursor c) {
|
|
if (c == null) {
|
|
return;
|
|
}
|
|
if (c.isClosed()) {
|
|
Log.w(Logging.LOG_TAG, "Cursor was closed here: Cursor=" + c,
|
|
getTraceIfAvailable(c));
|
|
} else {
|
|
Log.w(Logging.LOG_TAG, "Cursor not closed. Cursor=" + c);
|
|
}
|
|
}
|
|
|
|
public static Cursor get(Cursor original) {
|
|
return TRACE_ENABLED ? new CloseTraceCursorWrapper(original) : original;
|
|
}
|
|
|
|
/* package */ static CloseTraceCursorWrapper alwaysCreateForTest(Cursor original) {
|
|
return new CloseTraceCursorWrapper(original);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Test that the given strings are equal in a null-pointer safe fashion.
|
|
*/
|
|
public static boolean areStringsEqual(String s1, String s2) {
|
|
return (s1 != null && s1.equals(s2)) || (s1 == null && s2 == null);
|
|
}
|
|
|
|
public static void enableStrictMode(boolean enabled) {
|
|
StrictMode.setThreadPolicy(enabled
|
|
? new StrictMode.ThreadPolicy.Builder().detectAll().build()
|
|
: StrictMode.ThreadPolicy.LAX);
|
|
StrictMode.setVmPolicy(enabled
|
|
? new StrictMode.VmPolicy.Builder().detectAll().build()
|
|
: StrictMode.VmPolicy.LAX);
|
|
}
|
|
|
|
public static String dumpFragment(Fragment f) {
|
|
StringWriter sw = new StringWriter();
|
|
PrintWriter w = new PrintWriter(sw);
|
|
f.dump("", new FileDescriptor(), w, new String[0]);
|
|
return sw.toString();
|
|
}
|
|
|
|
/**
|
|
* Builds an "in" expression for SQLite.
|
|
*
|
|
* e.g. "ID" + 1,2,3 -> "ID in (1,2,3)". If {@code values} is empty or null, it returns an
|
|
* empty string.
|
|
*/
|
|
public static String buildInSelection(String columnName, Collection<? extends Number> values) {
|
|
if ((values == null) || (values.size() == 0)) {
|
|
return "";
|
|
}
|
|
StringBuilder sb = new StringBuilder();
|
|
sb.append(columnName);
|
|
sb.append(" in (");
|
|
String sep = "";
|
|
for (Number n : values) {
|
|
sb.append(sep);
|
|
sb.append(n.toString());
|
|
sep = ",";
|
|
}
|
|
sb.append(')');
|
|
return sb.toString();
|
|
}
|
|
|
|
/**
|
|
* Updates the last seen message key in the mailbox data base for the INBOX of the currently
|
|
* shown account. If the account is {@link Account#ACCOUNT_ID_COMBINED_VIEW}, the INBOX for
|
|
* all accounts are updated.
|
|
* @return an {@link EmailAsyncTask} for test only.
|
|
*/
|
|
public static EmailAsyncTask<Void, Void, Void> updateLastSeenMessageKey(final Context context,
|
|
final long accountId) {
|
|
return EmailAsyncTask.runAsyncParallel(new Runnable() {
|
|
private void updateLastSeenMessageKeyForAccount(long accountId) {
|
|
ContentResolver resolver = context.getContentResolver();
|
|
if (accountId == Account.ACCOUNT_ID_COMBINED_VIEW) {
|
|
Cursor c = resolver.query(
|
|
Account.CONTENT_URI, EmailContent.ID_PROJECTION, null, null, null);
|
|
if (c == null) throw new ProviderUnavailableException();
|
|
try {
|
|
while (c.moveToNext()) {
|
|
final long id = c.getLong(EmailContent.ID_PROJECTION_COLUMN);
|
|
updateLastSeenMessageKeyForAccount(id);
|
|
}
|
|
} finally {
|
|
c.close();
|
|
}
|
|
} else if (accountId > 0L) {
|
|
Mailbox mailbox =
|
|
Mailbox.restoreMailboxOfType(context, accountId, Mailbox.TYPE_INBOX);
|
|
|
|
// mailbox has been removed
|
|
if (mailbox == null) {
|
|
return;
|
|
}
|
|
// We use the highest _id for the account the mailbox table as the "last seen
|
|
// message key". We don't care if the message has been read or not. We only
|
|
// need a point at which we can compare against in the future. By setting this
|
|
// value, we are claiming that every message before this has potentially been
|
|
// seen by the user.
|
|
long messageId = Utility.getFirstRowLong(
|
|
context,
|
|
Message.CONTENT_URI,
|
|
EmailContent.ID_PROJECTION,
|
|
MessageColumns.MAILBOX_KEY + "=?",
|
|
new String[] { Long.toString(mailbox.mId) },
|
|
MessageColumns.ID + " DESC",
|
|
EmailContent.ID_PROJECTION_COLUMN, 0L);
|
|
long oldLastSeenMessageId = Utility.getFirstRowLong(
|
|
context, ContentUris.withAppendedId(Mailbox.CONTENT_URI, mailbox.mId),
|
|
new String[] { MailboxColumns.LAST_SEEN_MESSAGE_KEY },
|
|
null, null, null, 0, 0L);
|
|
// Only update the db if the value has changed
|
|
if (messageId != oldLastSeenMessageId) {
|
|
ContentValues values = mailbox.toContentValues();
|
|
values.put(MailboxColumns.LAST_SEEN_MESSAGE_KEY, messageId);
|
|
resolver.update(
|
|
Mailbox.CONTENT_URI,
|
|
values,
|
|
EmailContent.ID_SELECTION,
|
|
new String[] { Long.toString(mailbox.mId) });
|
|
}
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public void run() {
|
|
updateLastSeenMessageKeyForAccount(accountId);
|
|
}
|
|
});
|
|
}
|
|
}
|