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: src/am/ed/importcontacts/VcardImporter.java
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- Committer: Tim Marston
- Date: 2013-10-20 17:51:32 UTC
- Revision ID: tim@ed.am-20131020175132-lvqrbal1ztz5jepl
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src/am/ed/importcontacts/VcardImporter.java
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/*
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* VCFImporter.java
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*
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* Copyright (C) 2009 to 2011 Tim Marston <tim@ed.am>
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* Copyright (C) 2009 to 2013 Tim Marston <tim@ed.am>
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*
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* This file is part of the Import Contacts program (hereafter referred
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* to as "this program"). For more information, see
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* to as "this program"). For more information, see
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* http://ed.am/dev/android/import-contacts
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*
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* This program is free software: you can redistribute it and/or modify
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boolean in_vcard = false;
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while( ( line = reader.readLine() ) != null )
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{
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if( !in_vcard ) {
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if( !in_vcard )
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{
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// look for vcard beginning
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if( line.matches( "^BEGIN:VCARD" ) ) {
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if( line.matches( "(?i)BEGIN[ \t]*:[ \t]*VCARD.*" ) ) {
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in_vcard = true;
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_vcard_count++;
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}
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// check for vMsg files
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else if( line.matches( "(?i)BEGIN[ \t]*:[ \t]*VMSG.*" ) ) {
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showError( getText( R.string.error_vcf_vmsgfile )
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+ file.getName() );
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}
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}
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else if( line.matches( "^END:VCARD" ) )
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else if( line.matches( "(?i)END[ \t]*:[ \t]*VCARD.*" ) )
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in_vcard = false;
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}
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// import
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importVCardFileContent( content, file.getName() );
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}
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catch( OutOfMemoryError e ) {
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showError( R.string.error_outofmemory );
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}
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catch( FileNotFoundException e ) {
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showError( getText( R.string.error_filenotfound ) +
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file.getName() );
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ContentLineIterator cli = new ContentLineIterator( content );
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while( cli.hasNext() )
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{
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ByteBuffer buffer = cli.next();
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ContentLine content_line = cli.next();
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// get a US-ASCII version of the line for processing
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String line;
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try {
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line = new String( buffer.array(), buffer.position(),
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buffer.limit() - buffer.position(), "US-ASCII" );
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}
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catch( UnsupportedEncodingException e ) {
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// we know US-ASCII *is* supported, so appease the compiler...
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line = "";
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}
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// get a US-ASCII version of the string, for processing
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String line = content_line.getUsAsciiLine();
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if( vcard == null ) {
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// look for vcard beginning
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if( line.matches( "^BEGIN[ \t]*:[ \t]*VCARD" ) ) {
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if( line.matches( "(?i)BEGIN[ \t]*:[ \t]*VCARD.*" ) ) {
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setProgress( _progress++ );
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vcard = new Vcard();
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vcard_start_line = cli.getLineNumber();
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}
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else {
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// look for vcard content or ending
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if( line.matches( "^END[ \t]*:[ \t]*VCARD" ) )
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if( line.matches( "(?i)END[ \t]*:[ \t]*VCARD.*" ) )
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{
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// finalise the vcard/contact
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try {
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{
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// try giving the line to the vcard
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try {
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vcard.parseLine( buffer, line,
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cli.doesNextLineLookFolded() );
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vcard.parseLine( content_line );
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}
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catch( Vcard.ParseException e ) {
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skipContact();
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finish( ACTION_ABORT );
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}
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// although we're continuing, we still need to abort
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// this vCard. Further lines will be ignored until we
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// Although we're continuing, we still need to abort
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// this vCard. Further lines will be ignored until we
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// get to another BEGIN:VCARD line.
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vcard = null;
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}
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catch( Vcard.SkipImportException e ) {
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skipContact();
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// abort this vCard. Further lines will be ignored until
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// Abort this vCard. Further lines will be ignored until
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// we get to another BEGIN:VCARD line.
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vcard = null;
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}
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}
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}
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class ContentLineIterator implements Iterator< ByteBuffer >
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class ContentLine
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{
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private ByteBuffer _buffer;
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private boolean _folded_next;
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private String _line;
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public ContentLine( ByteBuffer buffer, boolean folded_next )
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{
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_buffer = buffer;
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_folded_next = folded_next;
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_line = null;
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}
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public ByteBuffer getBuffer()
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{
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return _buffer;
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}
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public boolean doesNextLineLookFolded()
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{
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return _folded_next;
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}
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public String getUsAsciiLine()
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{
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// generated line and cache it
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if( _line == null ) {
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try {
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_line = new String( _buffer.array(), _buffer.position(),
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_buffer.limit() - _buffer.position(), "US-ASCII" );
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}
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catch( UnsupportedEncodingException e ) {
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// we know US-ASCII *is* supported, so appease the
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// compiler...
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}
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}
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// return cached line
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return _line;
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}
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}
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class ContentLineIterator implements Iterator< ContentLine >
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{
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protected byte[] _content = null;
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protected int _pos = 0;
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}
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@Override
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public ByteBuffer next()
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public ContentLine next()
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{
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int initial_pos = _pos;
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_pos > initial_pos )? _pos - 1 : _pos;
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_pos++;
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_line++;
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return ByteBuffer.wrap( _content, initial_pos,
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to - initial_pos );
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return new ContentLine(
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ByteBuffer.wrap( _content, initial_pos,
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to - initial_pos ),
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doesNextLineLookFolded() );
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}
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// we didn't find one, but were there bytes left?
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int to = _pos;
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_pos++;
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_line++;
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return ByteBuffer.wrap( _content, initial_pos,
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to - initial_pos );
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return new ContentLine(
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ByteBuffer.wrap( _content, initial_pos,
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to - initial_pos ),
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doesNextLineLookFolded() );
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}
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// no bytes left
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* onto the end of this one?
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* @return
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*/
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public boolean doesNextLineLookFolded()
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private boolean doesNextLineLookFolded()
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{
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return _pos > 0 && _pos < _content.length &&
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_content[ _pos - 1 ] == '\n' &&
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private final static int MULTILINE_FOLDED = 3; // MIME-DIR folding
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private String _version = null;
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private Vector< ByteBuffer > _buffers = null;
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private Vector< ContentLine > _content_lines = null;
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private int _name_level = NAMELEVEL_NONE;
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private int _parser_multiline_state = MULTILINE_NONE;
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private String _parser_current_name_and_params = null;
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@SuppressWarnings("serial")
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protected class SkipImportException extends Exception { }
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private String extractCollonPartFromLine( ByteBuffer buffer,
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String line, boolean former )
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private String extractCollonPartFromLine( ContentLine content_line,
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boolean former )
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{
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String ret = null;
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// get a US-ASCII version of the line for processing, unless we were
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// supplied with one
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if( line == null ) {
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try {
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line = new String( buffer.array(), buffer.position(),
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buffer.limit() - buffer.position(), "US-ASCII" );
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}
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catch( UnsupportedEncodingException e ) {
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// we know US-ASCII is supported, so appease the compiler...
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line = "";
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}
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}
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// split line into name and value parts and check to make sure we
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// only got 2 parts and that the first part is not zero in length
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String[] parts = line.split( ":", 2 );
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String[] parts = content_line.getUsAsciiLine().split( ":", 2 );
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if( parts.length == 2 && parts[ 0 ].length() > 0 )
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ret = parts[ former? 0 : 1 ];
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return ret;
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}
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private String extractNameAndParamsFromLine( ByteBuffer buffer,
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String line )
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{
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return extractCollonPartFromLine( buffer, line, true );
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}
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private String extractValueFromLine( ByteBuffer buffer, String line )
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{
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return extractCollonPartFromLine( buffer, line, false );
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}
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public void parseLine( ByteBuffer buffer, String line,
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boolean next_line_looks_folded )
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return parts[ former? 0 : 1 ].trim();
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return null;
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}
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private String extractNameAndParamsFromLine( ContentLine content_line )
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{
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return extractCollonPartFromLine( content_line, true );
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}
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private String extractValueFromLine( ContentLine content_line )
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{
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return extractCollonPartFromLine( content_line, false );
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}
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public void parseLine( ContentLine content_line )
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throws ParseException, SkipImportException,
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AbortImportException
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{
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{
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// tentatively get name and params from line
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String name_and_params =
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extractNameAndParamsFromLine( buffer, line );
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extractNameAndParamsFromLine( content_line );
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// is it a version line?
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if( name_and_params != null &&
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name_and_params.equalsIgnoreCase( "VERSION" ) )
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{
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// yes, get it!
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String value = extractValueFromLine( buffer, line );
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if( !value.equals( "2.1" ) && !value.equals( "3.0" ) )
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String value = extractValueFromLine( content_line );
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if( value == null || (
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!value.equals( "2.1" ) && !value.equals( "3.0" ) ) )
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{
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throw new ParseException( R.string.error_vcf_version );
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}
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_version = value;
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// parse any buffers we've been accumulating while we waited
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// for a version
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if( _buffers != null )
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for( int i = 0; i < _buffers.size(); i++ )
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parseLine( _buffers.get( i ), null,
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i + 1 < _buffers.size() &&
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_buffers.get( i + 1 ).hasRemaining() &&
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_buffers.get( i + 1 ).get(
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_buffers.get( i + 1 ).position() ) == ' ' );
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_buffers = null;
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if( _content_lines != null )
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for( int i = 0; i < _content_lines.size(); i++ )
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parseLine( _content_lines.get( i ) );
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_content_lines = null;
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}
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else
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{
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// no, so stash this line till we get a version
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if( _buffers == null )
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_buffers = new Vector< ByteBuffer >();
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_buffers.add( buffer );
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if( _content_lines == null )
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_content_lines = new Vector< ContentLine >();
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_content_lines.add( content_line );
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}
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}
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else
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// skip some initial line characters, depending on the type
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// of multi-line we're handling
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pos = buffer.position();
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pos = content_line.getBuffer().position();
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switch( _parser_multiline_state )
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{
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case MULTILINE_FOLDED:
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pos++;
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break;
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case MULTILINE_ENCODED:
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while( pos < buffer.limit() && (
527
buffer.get( pos ) == ' ' ||
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buffer.get( pos ) == '\t' ) )
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while( pos < content_line.getBuffer().limit() && (
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content_line.getBuffer().get( pos ) == ' ' ||
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content_line.getBuffer().get( pos ) == '\t' ) )
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{
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pos++;
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}
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else
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{
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// skip empty lines
544
if( line.trim().length() == 0 ) return;
572
if( content_line.getUsAsciiLine().trim().length() == 0 )
573
return;
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// get name and params from line, and since we're not
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// parsing a subsequent line in a multi-line, this should
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// not fail, or it's an error
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name_and_params =
550
extractNameAndParamsFromLine( buffer, line );
579
extractNameAndParamsFromLine( content_line );
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if( name_and_params == null )
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581
throw new ParseException(
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R.string.error_vcf_malformed );
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// calculate how many chars to skip from beginning of line
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// so we skip the property "name:" part
557
pos = buffer.position() + name_and_params.length() + 1;
586
pos = content_line.getBuffer().position() +
587
name_and_params.length() + 1;
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// reset the saved multi-line state
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_parser_current_name_and_params = name_and_params;
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// get value from buffer, as raw bytes
565
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ByteBuffer value;
566
value = ByteBuffer.wrap( buffer.array(), pos,
567
buffer.limit() - pos );
596
value = ByteBuffer.wrap( content_line.getBuffer().array(), pos,
597
content_line.getBuffer().limit() - pos );
568
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569
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// get parameter parts
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String[] name_param_parts = name_and_params.split( ";", -1 );
658
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// if we know we're not in an encoding-based multi-line, check
659
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// to see if we're in a folded multi-line
660
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if( _parser_multiline_state == MULTILINE_NONE &&
661
next_line_looks_folded )
691
content_line.doesNextLineLookFolded() )
662
692
{
663
693
_parser_multiline_state = MULTILINE_FOLDED;
664
694
}
694
724
parseLABEL( name_param_parts, complete_value );
695
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else if( name_param_parts[ 0 ].equalsIgnoreCase( "NOTE" ) )
696
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parseNOTE( name_param_parts, complete_value );
727
else if( name_param_parts[ 0 ].equalsIgnoreCase( "BDAY" ) )
728
parseBDAY( name_param_parts, complete_value );
697
729
}
698
730
}
699
731
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{
724
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String str = parts.get( a );
725
757
726
// look for parts that end in an escape character, but ignore
727
// the final part. We've already detected escape chars at the
758
// Look for parts that end in an escape character, but ignore
759
// the final part. We've already detected escape chars at the
728
760
// end of the final part in parseLine() and handled multi-lines
729
761
// accordingly.
730
762
if( a < parts.size() - 1 &&
820
852
for( int b = 0; b < name_part_parts.length; b++ )
821
853
if( name_part_parts[ b ].length() > 0 )
822
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{
823
if( value.length() == 0 ) value += " ";
855
if( value.length() > 0 ) value += " ";
824
856
value += name_part_parts[ b ];
825
857
}
826
858
}
1000
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addNote( unescapeValue( value ) );
1001
1033
}
1002
1034
1035
private void parseBDAY( String[] params, String value )
1036
{
1037
setBirthday( value );
1038
}
1039
1003
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public void finaliseVcard()
1004
1041
throws ParseException, ContactNotIdentifiableException
1005
1042
{
1006
1043
// missing version (and data is present)
1007
if( _version == null && _buffers != null )
1044
if( _version == null && _content_lines != null )
1008
1045
throw new ParseException( R.string.error_vcf_malformed );
1009
1046
1010
1047
// finalise the parent class
1013
1050
1014
1051
/**
1015
1052
* Amongst the params, find the value of the first, only, of any with
1016
* the specified name
1053
* the specified name.
1054
*
1017
1055
* @param params
1018
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* @param name
1019
1057
* @return a value, or null
1025
1063
}
1026
1064
1027
1065
/**
1028
* Amongst the params, find the values of any with the specified name
1066
* Amongst the params, find the values of any with the specified name.
1067
*
1029
1068
* @param params
1030
1069
* @param name
1031
1070
* @return an array of values, or null
1047
1086
}
1048
1087
1049
1088
/**
1050
* Amongst the params, return any type values present. For v2.1 vCards,
1051
* those types are just parameters. For v3.0, they are prefixed with
1052
* "TYPE=". There may also be multiple type parameters.
1089
* Amongst the params, return any type values present. For v2.1 vCards,
1090
* those types are just parameters. For v3.0, they are prefixed with
1091
* "TYPE=". There may also be multiple type parameters.
1092
*
1053
1093
* @param params an array of params to look for types in
1054
1094
* @param valid_types an list of upper-case type values to look for
1055
1095
* @return a set of present type values
1107
1147
else if( ch == '=' && i == in.limit() - 1 )
1108
1148
{
1109
1149
// we found a '=' at the end of a line signifying a multi-
1110
// line string, so we don't add it.
1150
// line string, so we don't add it
1111
1151
another = true;
1112
1152
continue;
1113
1153
}
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