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36
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: src/org/waxworlds/edam/importcontacts/VCFImporter.java
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- Committer: edam
- Date: 2011-03-19 20:33:09 UTC
- Revision ID: edam@waxworlds.org-20110319203309-5dzfyqrxwk94jtin
- formatting: removed some double-indents on overrunning lines
- updated TODO and NEWS
- rewrote central logic of parser so it makes more sense, looks nicer and has a small optimisation (getting name and params from line only when necessary)
- optimised unnecessary mutliple converting of lines to US-ASCII
- re-wrote line extraction from vcards so that we can lookahead for v3 folded lines
- added support for v3 folded lines
- updated TODO and NEWS
- rewrote central logic of parser so it makes more sense, looks nicer and has a small optimisation (getting name and params from line only when necessary)
- optimised unnecessary mutliple converting of lines to US-ASCII
- re-wrote line extraction from vcards so that we can lookahead for v3 folded lines
- added support for v3 folded lines
- files modified:
- AndroidManifest.xml
added
removed
src/org/waxworlds/edam/importcontacts/VCFImporter.java
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.FileReader;
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import java.io.FilenameFilter;
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import java.io.IOException;
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import java.io.UnsupportedEncodingException;
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import java.nio.ByteBuffer;
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import java.util.Arrays;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Set;
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import java.util.Vector;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import java.util.NoSuchElementException;
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import java.lang.UnsupportedOperationException;
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import android.content.SharedPreferences;
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import android.provider.Contacts;
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{
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// open file
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BufferedReader reader = new BufferedReader(
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new FileReader( file ) );
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new FileReader( file ) );
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// read
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String line;
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{
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if( !inVCard ) {
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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( "^BEGIN:VCARD" ) ) {
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inVCard = true;
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_vCardCount++;
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138
}
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}
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else if( line.matches( "^END[ \\t]*:[ \\t]*VCARD" ) )
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else if( line.matches( "^END:VCARD" ) )
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inVCard = false;
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}
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143
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private void importVCardFile( File file ) throws AbortImportException
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{
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// check file is good
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if( !file.exists() )
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showError( getText( R.string.error_filenotfound ) +
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file.getName() );
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if( file.length() == 0 )
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showError( getText( R.string.error_fileisempty ) +
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file.getName() );
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151
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try
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{
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// open file
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BufferedReader reader = new BufferedReader(
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new FileReader( file ) );
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// read
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StringBuffer content = new StringBuffer();
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String line;
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while( ( line = reader.readLine() ) != null )
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content.append( line ).append( "\n" );
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importVCardFileContent( content.toString(), file.getName() );
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// open/read file
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FileInputStream istream = new FileInputStream( file );
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byte[] content = new byte[ (int)file.length() ];
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istream.read( content );
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// import
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importVCardFileContent( content, file.getName() );
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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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}
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}
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private void importVCardFileContent( String content, String fileName )
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throws AbortImportException
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private void importVCardFileContent( byte[] content, String fileName )
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throws AbortImportException
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{
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// get lines and parse them
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String[] lines = content.split( "\n" );
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// go through lines
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VCard vCard = null;
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for( int i = 0; i < lines.length; i++ )
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ContentLineIterator cli = new ContentLineIterator( content );
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while( cli.hasNext() )
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{
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String line = lines[ i ];
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ByteBuffer buffer = 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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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( "^BEGIN:VCARD" ) ) {
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setProgress( ++_progress );
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vCard = new VCard();
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}
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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( "^END:VCARD" ) )
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{
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// store vcard and do away with it
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try {
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catch( VCard.ParseException e ) {
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skipContact();
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if( !showContinue(
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getText( R.string.error_vcf_parse ).toString()
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+ fileName + "\n" + e.getMessage() ) )
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getText( R.string.error_vcf_parse ).toString()
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+ fileName + "\n" + e.getMessage() ) )
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{
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finish( ACTION_ABORT );
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}
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}
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catch( VCard.SkipContactException e ) {
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skipContact();
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{
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// try giving the line to the vcard
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try {
217
vCard.parseLine( line );
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vCard.parseLine( buffer, line,
240
cli.doesNextLineLookFolded() );
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}
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catch( VCard.ParseException e ) {
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skipContact();
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if( !showContinue(
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getText( R.string.error_vcf_parse ).toString()
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+ fileName + "\n" + e.getMessage() ) )
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getText( R.string.error_vcf_parse ).toString()
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+ fileName + "\n" + e.getMessage() ) )
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{
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finish( ACTION_ABORT );
249
}
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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
239
264
}
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}
241
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class ContentLineIterator implements Iterator< ByteBuffer >
268
{
269
protected byte[] _content = null;
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protected int _pos = 0;
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public ContentLineIterator( byte[] content )
273
{
274
_content = content;
275
}
276
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@Override
278
public boolean hasNext()
279
{
280
return _pos < _content.length;
281
}
282
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@Override
284
public ByteBuffer next()
285
{
286
int initial_pos = _pos;
287
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// find newline
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for( ; _pos < _content.length; _pos++ )
290
if( _content[ _pos ] == '\n' )
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{
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// adjust for a \r preceding the \n
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int to = ( _pos > 0 && _content[ _pos - 1 ] == '\r' &&
294
_pos > initial_pos )? _pos - 1 : _pos;
295
_pos++;
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return ByteBuffer.wrap( _content, initial_pos,
297
to - initial_pos );
298
}
299
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// we didn't find one, but were there bytes left?
301
if( _pos != initial_pos ) {
302
int to = _pos;
303
_pos++;
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return ByteBuffer.wrap( _content, initial_pos,
305
to - initial_pos );
306
}
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// no bytes left
309
throw new NoSuchElementException();
310
}
311
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@Override
313
public void remove()
314
{
315
throw new UnsupportedOperationException();
316
}
317
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/**
319
* Does the next line, if there is one, look like it should be folded
320
* onto the end of this one?
321
* @return
322
*/
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public boolean doesNextLineLookFolded()
324
{
325
return _pos > 0 && _pos < _content.length &&
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_content[ _pos - 1 ] == '\n' && _content[ _pos ] == ' ';
327
}
328
}
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private class VCard extends ContactData
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{
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private final static int NAMELEVEL_NONE = 0;
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private final static int NAMELEVEL_N = 3;
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private String _version = null;
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private Vector< String > _lines = null;
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private Vector< ByteBuffer > _buffers = null;
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private int _name_level = NAMELEVEL_NONE;
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private boolean _parser_in_multiline = false;
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private boolean _parser_in_encoded_multiline = false;
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private boolean _parser_in_folded_multiline = false;
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private String _parser_current_name_and_params = null;
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private String _parser_buffered_value_so_far = "";
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protected class UnencodeResult
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{
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private boolean _another_line_required;
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private byte[] _bytes;
260
private int _num_bytes;
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private ByteBuffer _buffer;
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public UnencodeResult( boolean another_line_required, byte[] bytes,
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int num_bytes )
350
public UnencodeResult( boolean another_line_required,
351
ByteBuffer buffer )
264
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{
265
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_another_line_required = another_line_required;
266
_bytes = bytes;
267
_num_bytes = num_bytes;
354
_buffer = buffer;
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355
}
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356
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public boolean isAnotherLineRequired()
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359
return _another_line_required;
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360
}
274
361
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public byte[] getBytes()
276
{
277
return _bytes;
278
}
279
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public int getNumBytes()
281
{
282
return _num_bytes;
362
public ByteBuffer getBuffer()
363
{
364
return _buffer;
283
365
}
284
366
}
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367
301
383
@SuppressWarnings("serial")
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protected class SkipContactException extends Exception { }
303
385
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public void parseLine( String line )
305
throws ParseException, SkipContactException,
306
AbortImportException
307
{
308
// ignore empty lines
309
if( line.trim() == "" ) return;
310
311
// split line into name and value parts (this may turn out to be
312
// unwanted if the line is a subsequent line in a multi-line
313
// value, but we have to do this now to check for and handle VCF
314
// versions first)
315
String[] props = line.split( ":", 2 );
316
for( int i = 0; i < props.length; i++ )
317
props[ i ] = props[ i ].trim();
318
319
// if we haven't yet got a version, we won't be paring anything!
386
private String extractCollonPartFromLine( ByteBuffer buffer,
387
String line, boolean former )
388
{
389
String ret = null;
390
391
// get a US-ASCII version of the line for processing, unless we were
392
// supplied with one
393
if( line == null ) {
394
try {
395
line = new String( buffer.array(), buffer.position(),
396
buffer.limit() - buffer.position(), "US-ASCII" );
397
}
398
catch( UnsupportedEncodingException e ) {
399
// we know US-ASCII is supported, so appease the compiler...
400
line = "";
401
}
402
}
403
404
// split line into name and value parts and check to make sure we
405
// only got 2 parts and that the first part is not zero in length
406
String[] parts = line.split( ":", 2 );
407
if( parts.length == 2 && parts[ 0 ].length() > 0 )
408
ret = parts[ former? 0 : 1 ];
409
410
return ret;
411
}
412
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private String extractNameAndParamsFromLine( ByteBuffer buffer,
414
String line )
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{
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return extractCollonPartFromLine( buffer, line, true );
417
}
418
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private String extractValueFromLine( ByteBuffer buffer, String line )
420
{
421
return extractCollonPartFromLine( buffer, line, false );
422
}
423
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public void parseLine( ByteBuffer buffer, String line,
425
boolean next_line_looks_folded )
426
throws ParseException, SkipContactException,
427
AbortImportException
428
{
429
// do we have a version yet?
320
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if( _version == null )
321
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{
322
// is this a version?
323
if( props.length == 2 && props[ 0 ].equals( "VERSION" ) )
432
// tentatively get name and params from line
433
String name_and_params =
434
extractNameAndParamsFromLine( buffer, line );
435
436
// is it a version line?
437
if( name_and_params != null &&
438
name_and_params.equals( "VERSION" ) )
324
439
{
325
// yes, check/store it
326
if( !props[ 1 ].equals( "2.1" ) &&
327
!props[ 1 ].equals( "3.0" ) )
440
// yes, get it!
441
String value = extractValueFromLine( buffer, line );
442
if( !value.equals( "2.1" ) && !value.equals( "3.0" ) )
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throw new ParseException( R.string.error_vcf_version );
329
_version = props[ 1 ];
444
_version = value;
330
445
331
// parse any other lines we've accumulated so far
332
if( _lines != null )
333
for( int i = 0; i < _lines.size(); i++ )
334
parseLine( _lines.get( i ) );
335
_lines = null;
446
// parse any buffers we've been accumulating while we waited
447
// for a version
448
if( _buffers != null )
449
for( int i = 0; i < _buffers.size(); i++ )
450
parseLine( _buffers.get( i ), null,
451
i + 1 < _buffers.size() &&
452
_buffers.get( i + 1 ).hasRemaining() &&
453
_buffers.get( i + 1 ).get(
454
_buffers.get( i + 1 ).position() ) == ' ' );
455
_buffers = null;
336
456
}
337
457
else
338
458
{
339
// no, so stash this line till we have a version
340
if( _lines == null )
341
_lines = new Vector< String >();
342
_lines.add( line );
459
// no, so stash this line till we get a version
460
if( _buffers == null )
461
_buffers = new Vector< ByteBuffer >();
462
_buffers.add( buffer );
343
463
}
344
464
}
345
465
else
346
466
{
347
if( _parser_in_multiline )
467
// name and params and the position in the buffer where the
468
// "value" part of the line start
469
String name_and_params;
470
int pos;
471
472
if( _parser_in_encoded_multiline ||
473
_parser_in_folded_multiline )
348
474
{
349
475
// if we're currently in a multi-line value, use the stored
350
476
// property name and parameters
351
props = new String[ 2 ];
352
props[ 0 ] = _parser_current_name_and_params;
353
props[ 1 ] = line.trim();
477
name_and_params = _parser_current_name_and_params;
478
479
pos = buffer.position();
480
481
// for folded multi-lines, skip the single space at the
482
// start of the next line
483
if( _parser_in_folded_multiline )
484
pos++;
485
486
// else, this must be an encoded multi-line, so skip any
487
// whitespace we find at the start of the next line
488
else
489
while( pos < buffer.limit() && (
490
buffer.get( pos ) == ' ' ||
491
buffer.get( pos ) == '\t' ) )
492
{
493
pos++;
494
}
354
495
}
355
496
else
356
497
{
357
// for normal lines, check the property name/value bits
358
if( props.length < 2 || props[ 0 ].length() == 0 )
498
// get name and params from line, and since we're not
499
// parsing a subsequent line in a multi-line, this should
500
// not fail, or it's an error
501
name_and_params =
502
extractNameAndParamsFromLine( buffer, line );
503
if( name_and_params == null )
359
504
throw new ParseException(
360
505
R.string.error_vcf_malformed );
361
506
362
// ignore empty properties
363
if( props[ 1 ].length() < 1 )
364
return;
507
// calculate how many chars to skip from beginning of line
508
// so we skip the property "name:" part
509
pos = buffer.position() + name_and_params.length() + 1;
365
510
366
511
// reset the saved multi-line state
367
_parser_current_name_and_params = props[ 0 ];
512
_parser_current_name_and_params = name_and_params;
368
513
_parser_buffered_value_so_far = "";
369
514
}
370
515
516
// get value from buffer, as raw bytes
517
ByteBuffer value;
518
value = ByteBuffer.wrap( buffer.array(), pos,
519
buffer.limit() - pos );
520
371
521
// get parameter parts
372
String[] params = props[ 0 ].split( ";" );
373
for( int i = 0; i < params.length; i++ )
374
params[ i ] = params[ i ].trim();
522
String[] name_param_parts = name_and_params.split( ";", -1 );
523
for( int i = 0; i < name_param_parts.length; i++ )
524
name_param_parts[ i ] = name_param_parts[ i ].trim();
375
525
376
// parse charset and encoding parameters
377
String charset, encoding;
378
if( ( charset = checkParam( params, "CHARSET" ) ) != null &&
379
!charset.equals( "UTF-8" ) && !charset.equals( "UTF-16" ) )
380
{
381
throw new ParseException( R.string.error_vcf_charset );
382
}
383
if( ( encoding = checkParam( params, "ENCODING" ) ) != null &&
384
!encoding.equals( "QUOTED-PRINTABLE" ) &&
385
!encoding.equals( "8BIT" ) )
526
// parse encoding parameter
527
String encoding = checkParam( name_param_parts, "ENCODING" );
528
if( encoding != null ) encoding = encoding.toUpperCase();
529
if( encoding != null && !encoding.equals( "8BIT" ) &&
530
!encoding.equals( "QUOTED-PRINTABLE" ) )
386
531
//&& !encoding.equals( "BASE64" ) )
387
532
{
388
533
throw new ParseException( R.string.error_vcf_encoding );
389
534
}
390
535
536
// parse charset parameter
537
String charset = checkParam( name_param_parts, "CHARSET" );
538
if( charset != null ) charset = charset.toUpperCase();
539
if( charset != null && !charset.equals( "US-ASCII" ) &&
540
!charset.equals( "ASCII" ) &&
541
!charset.equals( "UTF-8" ) )
542
{
543
throw new ParseException( R.string.error_vcf_charset );
544
}
545
391
546
// do unencoding (or default to a fake unencoding result with
392
547
// the raw string)
393
UnencodeResult result;
548
UnencodeResult unencoding_result = null;
394
549
if( encoding != null && encoding.equals( "QUOTED-PRINTABLE" ) )
395
result = unencodeQuotedPrintable( props[ 1 ], charset );
550
unencoding_result = unencodeQuotedPrintable( value );
396
551
// else if( encoding != null && encoding.equals( "BASE64" ) )
397
// result = unencodeBase64( props[ 1 ], charset );
398
else
399
result = new UnencodeResult( false, props[ 1 ].getBytes(),
400
props[ 1 ].getBytes().length );
552
// unencoding_result = unencodeBase64( props[ 1 ], charset );
553
if( unencoding_result != null ) {
554
value = unencoding_result.getBuffer();
555
_parser_in_encoded_multiline =
556
unencoding_result.isAnotherLineRequired();
557
}
558
559
// convert 8-bit ASCII charset to US-ASCII
560
if( charset == null || charset.equals( "ASCII" ) ) {
561
value = transcodeAsciiToUtf8( value );
562
charset = "UTF-8";
563
}
401
564
402
565
// process charset
566
String string_value;
403
567
try {
404
props[ 1 ] = new String( result.getBytes(), 0,
405
result.getNumBytes(),
406
charset == null? "UTF-8" : charset );
568
string_value = new String( value.array(), value.position(),
569
value.limit() - value.position(), charset );
407
570
} catch( UnsupportedEncodingException e ) {
408
571
throw new ParseException( R.string.error_vcf_charset );
409
572
}
410
573
574
// now we know whether we're in an encoding multi-line,
575
// determine if we're in a v3 folded multi-line or not
576
_parser_in_folded_multiline = !_parser_in_encoded_multiline &&
577
_version.equals( "3.0" ) && next_line_looks_folded;
578
411
579
// handle multi-line requests
412
_parser_in_multiline = result.isAnotherLineRequired();
413
if( _parser_in_multiline ) {
414
_parser_buffered_value_so_far += props[ 1 ];
580
if( _parser_in_encoded_multiline ||
581
_parser_in_folded_multiline )
582
{
583
_parser_buffered_value_so_far += string_value;
415
584
return;
416
585
}
417
586
418
587
// add on buffered multi-line content
419
String value = _parser_buffered_value_so_far + props[ 1 ];
588
String complete_value =
589
_parser_buffered_value_so_far + string_value;
590
591
// ignore empty values
592
if( complete_value.length() < 1 ) return;
420
593
421
594
// parse some properties
422
if( params[ 0 ].equals( "N" ) )
423
parseN( params, value );
424
else if( params[ 0 ].equals( "FN" ) )
425
parseFN( params, value );
426
else if( params[ 0 ].equals( "ORG" ) )
427
parseORG( params, value );
428
else if( params[ 0 ].equals( "TEL" ) )
429
parseTEL( params, value );
430
else if( params[ 0 ].equals( "EMAIL" ) )
431
parseEMAIL( params, value );
595
if( name_param_parts[ 0 ].equals( "N" ) )
596
parseN( name_param_parts, complete_value );
597
else if( name_param_parts[ 0 ].equals( "FN" ) )
598
parseFN( name_param_parts, complete_value );
599
else if( name_param_parts[ 0 ].equals( "ORG" ) )
600
parseORG( name_param_parts, complete_value );
601
else if( name_param_parts[ 0 ].equals( "TEL" ) )
602
parseTEL( name_param_parts, complete_value );
603
else if( name_param_parts[ 0 ].equals( "EMAIL" ) )
604
parseEMAIL( name_param_parts, complete_value );
432
605
}
433
606
}
434
607
435
608
private void parseN( String[] params, String value )
436
throws ParseException, SkipContactException,
437
AbortImportException
609
throws ParseException, SkipContactException,
610
AbortImportException
438
611
{
439
612
// already got a better name?
440
613
if( _name_level >= NAMELEVEL_N ) return;
441
614
442
615
// get name parts
443
String[] nameparts = value.split( ";" );
444
for( int i = 0; i < nameparts.length; i++ )
445
nameparts[ i ] = nameparts[ i ].trim();
616
String[] name_parts = value.split( ";" );
617
for( int i = 0; i < name_parts.length; i++ )
618
name_parts[ i ] = name_parts[ i ].trim();
446
619
447
620
// build name
448
621
value = "";
449
if( nameparts.length > 1 && nameparts[ 1 ].length() > 0 )
450
value += nameparts[ 1 ];
451
if( nameparts[ 0 ].length() > 0 )
452
value += ( value.length() == 0? "" : " " ) + nameparts[ 0 ];
622
if( name_parts.length > 1 && name_parts[ 1 ].length() > 0 )
623
value += name_parts[ 1 ];
624
if( name_parts.length > 0 && name_parts[ 0 ].length() > 0 )
625
value += ( value.length() == 0? "" : " " ) + name_parts[ 0 ];
453
626
454
627
// set name
455
628
setName( value );
462
635
}
463
636
464
637
private void parseFN( String[] params, String value )
465
throws ParseException, SkipContactException
638
throws ParseException, SkipContactException
466
639
{
467
640
// already got a better name?
468
641
if( _name_level >= NAMELEVEL_FN ) return;
473
646
}
474
647
475
648
private void parseORG( String[] params, String value )
476
throws ParseException, SkipContactException
649
throws ParseException, SkipContactException
477
650
{
478
651
// already got a better name?
479
652
if( _name_level >= NAMELEVEL_ORG ) return;
480
653
481
654
// get org parts
482
String[] orgparts = value.split( ";" );
483
for( int i = 0; i < orgparts.length; i++ )
484
orgparts[ i ] = orgparts[ i ].trim();
655
String[] org_parts = value.split( ";" );
656
for( int i = 0; i < org_parts.length; i++ )
657
org_parts[ i ] = org_parts[ i ].trim();
485
658
486
659
// build name
487
if( orgparts[ 0 ].length() == 0 && orgparts.length > 1 )
488
value = orgparts[ 1 ];
660
if( org_parts.length > 1 && org_parts[ 0 ].length() == 0 )
661
value = org_parts[ 1 ];
489
662
else
490
value = orgparts[ 0 ];
663
value = org_parts[ 0 ];
491
664
492
665
// set name
493
666
setName( value );
495
668
}
496
669
497
670
private void parseTEL( String[] params, String value )
498
throws ParseException
671
throws ParseException
499
672
{
500
673
if( value.length() == 0 ) return;
501
674
502
675
Set< String > types = extractTypes( params, Arrays.asList(
503
"PREF", "HOME", "WORK", "VOICE", "FAX", "MSG", "CELL",
504
"PAGER", "BBS", "MODEM", "CAR", "ISDN", "VIDEO" ) );
676
"PREF", "HOME", "WORK", "VOICE", "FAX", "MSG", "CELL",
677
"PAGER", "BBS", "MODEM", "CAR", "ISDN", "VIDEO" ) );
505
678
506
679
// here's the logic...
507
680
boolean preferred = types.contains( "PREF" );
681
int type = PhonesColumns.TYPE_MOBILE;
508
682
if( types.contains( "VOICE" ) )
509
683
if( types.contains( "WORK" ) )
510
addPhone( value, PhonesColumns.TYPE_WORK, preferred );
684
type = PhonesColumns.TYPE_WORK;
511
685
else
512
addPhone( value, PhonesColumns.TYPE_HOME, preferred );
686
type = PhonesColumns.TYPE_HOME;
513
687
else if( types.contains( "CELL" ) || types.contains( "VIDEO" ) )
514
addPhone( value, PhonesColumns.TYPE_MOBILE, preferred );
688
type = PhonesColumns.TYPE_MOBILE;
515
689
if( types.contains( "FAX" ) )
516
690
if( types.contains( "HOME" ) )
517
addPhone( value, PhonesColumns.TYPE_FAX_HOME, preferred );
691
type = PhonesColumns.TYPE_FAX_HOME;
518
692
else
519
addPhone( value, PhonesColumns.TYPE_FAX_WORK, preferred );
693
type = PhonesColumns.TYPE_FAX_WORK;
520
694
if( types.contains( "PAGER" ) )
521
addPhone( value, PhonesColumns.TYPE_PAGER, preferred );
695
type = PhonesColumns.TYPE_PAGER;
696
697
// add phone number
698
addPhone( value, type, preferred );
522
699
}
523
700
524
701
public void parseEMAIL( String[] params, String value )
525
throws ParseException
702
throws ParseException
526
703
{
527
704
if( value.length() == 0 ) return;
528
705
529
706
Set< String > types = extractTypes( params, Arrays.asList(
530
"PREF", "WORK", "HOME", "INTERNET" ) );
707
"PREF", "WORK", "HOME", "INTERNET" ) );
531
708
532
709
// here's the logic...
533
710
boolean preferred = types.contains( "PREF" );
538
715
}
539
716
540
717
public void finaliseParsing()
541
throws ParseException, SkipContactException,
542
AbortImportException
718
throws ParseException, SkipContactException,
719
AbortImportException
543
720
{
544
721
// missing version (and data is present)
545
if( _version == null && _lines != null )
722
if( _version == null && _buffers != null )
546
723
throw new ParseException( R.string.error_vcf_malformed );
547
724
548
725
// missing name properties?
558
735
559
736
private String checkParam( String[] params, String name )
560
737
{
561
Pattern p = Pattern.compile( "^" + name + "[ \\t]*=[ \\t]*(.*)$" );
738
Pattern p = Pattern.compile(
739
"^" + name + "[ \\t]*=[ \\t]*(\"?)(.*)\\1$" );
562
740
for( int i = 0; i < params.length; i++ ) {
563
741
Matcher m = p.matcher( params[ i ] );
564
742
if( m.matches() )
565
return m.group( 1 );
743
return m.group( 2 );
566
744
}
567
745
return null;
568
746
}
569
747
570
748
private Set< String > extractTypes( String[] params,
571
List< String > validTypes )
749
List< String > valid_types )
572
750
{
573
751
HashSet< String > types = new HashSet< String >();
574
752
575
753
// get 3.0-style TYPE= param
576
String typeParam;
577
if( ( typeParam = checkParam( params, "TYPE" ) ) != null ) {
578
String[] bits = typeParam.split( "," );
579
for( int i = 0; i < bits.length; i++ )
580
if( validTypes.contains( bits[ i ] ) )
581
types.add( bits[ i ] );
754
String type_param;
755
if( ( type_param = checkParam( params, "TYPE" ) ) != null ) {
756
String[] parts = type_param.split( "," );
757
for( int i = 0; i < parts.length; i++ )
758
if( valid_types.contains( parts[ i ] ) )
759
types.add( parts[ i ] );
582
760
}
583
761
584
762
// get 2.1-style type param
585
763
if( _version.equals( "2.1" ) ) {
586
764
for( int i = 1; i < params.length; i++ )
587
if( validTypes.contains( params[ i ] ) )
765
if( valid_types.contains( params[ i ] ) )
588
766
types.add( params[ i ] );
589
767
}
590
768
591
769
return types;
592
770
}
593
771
594
private UnencodeResult unencodeQuotedPrintable( String str, String charset )
772
private UnencodeResult unencodeQuotedPrintable( ByteBuffer in )
595
773
{
596
774
boolean another = false;
597
775
598
// default encoding scheme
599
if( charset == null ) charset = "UTF-8";
600
601
// unencode quoted-pritable encoding, as per RFC1521 section 5.1
602
byte[] bytes = new byte[ str.length() ];
776
// unencode quoted-printable encoding, as per RFC1521 section 5.1
777
byte[] out = new byte[ in.limit() - in.position() ];
603
778
int j = 0;
604
for( int i = 0; i < str.length(); i++ )
779
for( int i = in.position(); i < in.limit(); i++ )
605
780
{
606
781
// get next char and process...
607
char ch = str.charAt( i );
608
if( ch == '=' && i < str.length() - 2 )
782
byte ch = in.array()[ i ];
783
if( ch == '=' && i < in.limit() - 2 )
609
784
{
610
785
// we found a =XX format byte, add it
611
bytes[ j ] = (byte)(
612
Character.digit( str.charAt( i + 1 ), 16 ) * 16 +
613
Character.digit( str.charAt( i + 2 ), 16 ) );
786
out[ j ] = (byte)(
787
Character.digit( in.array()[ i + 1 ], 16 ) * 16 +
788
Character.digit( in.array()[ i + 2 ], 16 ) );
614
789
i += 2;
615
790
}
616
else if( ch == '=' && i == str.length() - 1 )
791
else if( ch == '=' && i == in.limit() - 1 )
617
792
{
618
793
// we found a '=' at the end of a line signifying a multi-
619
794
// line string, so we don't add it.
622
797
}
623
798
else
624
799
// just a normal char...
625
bytes[ j ] = (byte)ch;
800
out[ j ] = (byte)ch;
626
801
j++;
627
802
}
628
803
629
return new UnencodeResult( another, bytes, j );
804
return new UnencodeResult( another, ByteBuffer.wrap( out, 0, j ) );
805
}
806
807
private ByteBuffer transcodeAsciiToUtf8( ByteBuffer in )
808
{
809
// transcode
810
byte[] out = new byte[ ( in.limit() - in.position() ) * 2 ];
811
int j = 0;
812
for( int a = in.position(); a < in.limit(); a++ )
813
{
814
// if char is < 127, keep it as-is
815
if( in.array()[ a ] >= 0 )
816
out[ j++ ] = in.array()[ a ];
817
818
// else, convert it to UTF-8
819
else {
820
int b = 0xff & (int)in.array()[ a ];
821
out[ j++ ] = (byte)( 0xc0 | ( b >> 6 ) );
822
out[ j++ ] = (byte)( 0x80 | ( b & 0x3f ) );
823
}
824
}
825
826
return ByteBuffer.wrap( out, 0, j );
630
827
}
631
828
}
632
829
}
Loggerhead is a web-based interface for Bazaar branches
Version: 1.18.2, Revision: 480