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* Copyright (C) 2011 to 2013 Tim Marston <tim@ed.am>
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* Copyright (C) 2011 Tim Marston <edam@waxworlds.org>
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* This file is part of the Export Contacts program (hereafter referred
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* to as "this program"). For more information, see
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* http://ed.am/dev/android/export-contacts
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* to as "this program"). For more information, see
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* http://www.waxworlds.org/edam/software/android/export-contacts
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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package am.ed.exportcontacts;
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package org.waxworlds.edam.exportcontacts;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.util.Iterator;
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import android.content.SharedPreferences;
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import android.provider.Contacts;
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public class VcardExporter extends Exporter
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protected FileOutputStream _ostream = null;
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protected boolean _first_contact = true;
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public VcardExporter( Doit doit )
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SharedPreferences prefs = getSharedPreferences();
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// create output filename
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File file = new File( ConfigureVCF.getSdCardPathPrefix() +
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prefs.getString( "path", "/" ) +
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prefs.getString( "filename", "android-contacts.vcf" ) );
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String filename = prefs.getString( "filename", "android-contacts.vcf" );
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File file = new File( "/sdcard" + prefs.getString( "location", "/" ) +
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// check if the output file already exists
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if( file.exists() && file.length() > 0 )
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showContinueOrAbort( R.string.error_vcf_exists );
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showContinue( R.string.error_vcf_exists );
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_ostream = new FileOutputStream( file );
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catch( FileNotFoundException e ) {
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showError( getText( R.string.error_filenotfound ) +
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showError( R.string.error_filenotfound );
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// length of the line we'll be pulling off
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// if splitting at this length would break apart a codepoint, use
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if( Character.isHighSurrogate( line.charAt( len - 1 ) ) )
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// count how many backslashes would be at the end of the line we're
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return buffer.toString();
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* Is the provided value a valid date-and-or-time, as per the spec?
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* @param value the value
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* @return true if it is
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protected boolean isValidDateAndOrTime( String value )
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// ISO 8601:2004 4.1.2 date with 4.1.2.3 a) and b) reduced accuracy
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"[0-9]{4}(?:-?[0-9]{2}(?:-?[0-9]{2})?)?";
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// ISO 8601:2000 5.2.1.3 d), e) and f) truncated date representation
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"--(?:[0-9]{2}(?:-?[0-9]{2})?|-[0-9]{2})";
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// ISO 8601:2004 4.2.2 time with 4.2.2.3 reduced accuracy, 4.2.4 UTC and
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// 4.2.5 zone offset, no 4.2.2.4 decimal fraction and no 4.2.3 24:00
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"(?:[0-1][0-9]|2[0-3])(?::?[0-5][0-9](?::?(?:60|[0-5][0-9]))?)?" +
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"(?:Z|[-+](?:[0-1][0-9]|2[0-3])(?::?[0-5][0-9])?)?";
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// ISO 8601:2000 5.3.1.4 a), b) and c) truncated time representation
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"-(?:[0-5][0-9](?::?(?:60|[0-5][0-9]))?|-(?:60|[0-5][0-9]))";
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// RFC6350 (vCard 3.0) date-and-or-time with mandatory time designator
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String date_and_or_time =
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"(?:" + date + "|" + date_trunc + ")?" +
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"(?:T(?:" + time + "|" + time_trunc + "))?";
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return value.matches( date_and_or_time );
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protected void writeToFile( byte data[], String identifier )
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throws AbortExportException
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_ostream.write( data );
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catch( IOException e ) {
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showError( R.string.error_ioerror );
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protected boolean exportContact( ContactData contact )
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if( contact.getPrimaryIdentifier() == null )
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_first_contact = false;
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out.append( "BEGIN:VCARD\n" );
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out.append( "VCARD:BEGIN\n" );
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out.append( "VERSION:3.0\n" );
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// append formatted name
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String identifier = contact.getPrimaryIdentifier();
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if( identifier != null ) identifier = identifier.trim();
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if( identifier == null || identifier.length() == 0 ) {
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showContinueOrAbort( R.string.error_vcf_noname );
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out.append( fold( "FN:" + escape( identifier ) ) + "\n" );
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String name = contact.getName();
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if( name == null ) name = "";
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out.append( fold( "FN:" + escape( name ) ) + "\n" );
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String[] bits = name.split( " +" );
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StringBuilder tmp = new StringBuilder();
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for( int a = 1; a < bits.length - 1; a++ ) {
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for( int a = 0; a < numbers.size(); a++ ) {
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ArrayList< String > types = new ArrayList< String >();
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switch( numbers.get( a ).getType() ) {
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case ContactData.TYPE_HOME:
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case Contacts.Phones.TYPE_HOME:
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types.add( "VOICE" ); types.add( "HOME" ); break;
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case ContactData.TYPE_WORK:
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case Contacts.Phones.TYPE_WORK:
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types.add( "VOICE" ); types.add( "WORK" ); break;
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case ContactData.TYPE_FAX_HOME:
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case Contacts.Phones.TYPE_FAX_HOME:
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types.add( "FAX" ); types.add( "HOME" ); break;
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case ContactData.TYPE_FAX_WORK:
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case Contacts.Phones.TYPE_FAX_WORK:
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types.add( "FAX" ); types.add( "WORK" ); break;
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case ContactData.TYPE_PAGER:
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case Contacts.Phones.TYPE_PAGER:
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types.add( "PAGER" ); break;
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case ContactData.TYPE_MOBILE:
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case Contacts.Phones.TYPE_MOBILE:
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types.add( "VOICE" ); types.add( "CELL" ); break;
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if( a == 0 ) types.add( "PREF" );
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ArrayList< String > types = new ArrayList< String >();
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types.add( "INTERNET" );
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switch( emails.get( a ).getType() ) {
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case ContactData.TYPE_HOME:
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case Contacts.ContactMethods.TYPE_HOME:
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types.add( "HOME" ); break;
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case ContactData.TYPE_WORK:
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case Contacts.ContactMethods.TYPE_WORK:
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types.add( "WORK" ); break;
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out.append( fold( "EMAIL" +
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ArrayList< String > types = new ArrayList< String >();
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types.add( "POSTAL" );
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switch( addresses.get( a ).getType() ) {
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case ContactData.TYPE_HOME:
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case Contacts.ContactMethods.TYPE_HOME:
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types.add( "HOME" ); break;
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case ContactData.TYPE_WORK:
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case Contacts.ContactMethods.TYPE_WORK:
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types.add( "WORK" ); break;
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// we use LABEL because is accepts formatted text (whereas ADR
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// expects semicolon-delimited fields with specific purposes)
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out.append( fold( "LABEL" +
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( types.size() > 0? ";TYPE=" + join( types, "," ) : "" ) +
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":" + escape( addresses.get( a ).getAddress() ) ) + "\n" );
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ArrayList< String > notes = contact.getNotes();
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for( int a = 0; a < notes.size(); a++ )
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out.append( fold( "NOTE:" + escape( notes.get( a ) ) ) + "\n" );
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String birthday = contact.getBirthday();
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if( birthday != null ) {
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if( isValidDateAndOrTime( birthday ) )
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out.append( fold( "BDAY:" + escape( birthday ) ) + "\n" );
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fold( "BDAY;VALUE=text:" + escape( birthday ) ) + "\n" );
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out.append( "END:VCARD\n" );
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// replace '\n' with "\r\n" (spec requires CRLF)
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pos = out.indexOf( "\n", pos );
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if( pos == -1 ) break;
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out.replace( pos, pos + 1, "\r\n" );
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// skip our inserted string
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out.append( "VCARD:END\n" );
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writeToFile( out.toString().getBytes(), identifier );
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_ostream.write( out.toString().getBytes() );
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catch( IOException e ) {
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showError( R.string.error_ioerror );