/android/export-contacts

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Viewing changes to src/am/ed/exportcontacts/VcardExporter.java

  • Committer: edam
  • Date: 2010-10-22 18:56:17 UTC
  • Revision ID: edam@waxworlds.org-20101022185617-6p6ivjqt28avwlzo
- added file chooser
- changed directory edit box for a directory "browse" button
- wired file chooser in to configure vcf page
- fixed intro
- made app debuggable
- added licence and changelog

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src/am/ed/exportcontacts/VcardExporter.java
1
 
/*
2
 
 * Exporter.java
3
 
 *
4
 
 * Copyright (C) 2011 to 2012 Tim Marston <tim@ed.am>
5
 
 *
6
 
 * This file is part of the Export Contacts program (hereafter referred
7
 
 * to as "this program"). For more information, see
8
 
 * http://ed.am/dev/android/export-contacts
9
 
 *
10
 
 * This program is free software: you can redistribute it and/or modify
11
 
 * it under the terms of the GNU General Public License as published by
12
 
 * the Free Software Foundation, either version 3 of the License, or
13
 
 * (at your option) any later version.
14
 
 *
15
 
 * This program is distributed in the hope that it will be useful,
16
 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17
 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18
 
 * GNU General Public License for more details.
19
 
 *
20
 
 * You should have received a copy of the GNU General Public License
21
 
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
22
 
 */
23
 
 
24
 
package am.ed.exportcontacts;
25
 
 
26
 
import java.io.File;
27
 
import java.io.FileNotFoundException;
28
 
import java.io.FileOutputStream;
29
 
import java.io.IOException;
30
 
import java.util.AbstractCollection;
31
 
import java.util.ArrayList;
32
 
import java.util.Iterator;
33
 
 
34
 
import android.content.SharedPreferences;
35
 
 
36
 
public class VcardExporter extends Exporter
37
 
{
38
 
        protected FileOutputStream _ostream = null;
39
 
 
40
 
        public VcardExporter( Doit doit )
41
 
        {
42
 
                super( doit );
43
 
        }
44
 
 
45
 
        @Override
46
 
        protected void preExport() throws AbortExportException
47
 
        {
48
 
                SharedPreferences prefs = getSharedPreferences();
49
 
 
50
 
                // create output filename
51
 
                String filename = prefs.getString( "filename", "android-contacts.vcf" );
52
 
                File file = new File( "/sdcard" + prefs.getString( "location", "/" ) +
53
 
                        filename );
54
 
 
55
 
                // check if the output file already exists
56
 
                if( file.exists() && file.length() > 0 )
57
 
                        if( !showContinue( R.string.error_vcf_exists ) )
58
 
                                finish( ACTION_ABORT );
59
 
 
60
 
                // open file
61
 
                try {
62
 
                        _ostream = new FileOutputStream( file );
63
 
                }
64
 
                catch( FileNotFoundException e ) {
65
 
                        showError( R.string.error_filenotfound );
66
 
                }
67
 
        }
68
 
 
69
 
        /**
70
 
         * Do line folding at 75 chars
71
 
         * @param raw string
72
 
         * @return folded string
73
 
         */
74
 
        private String fold( String line )
75
 
        {
76
 
                StringBuilder ret = new StringBuilder( line.length() );
77
 
 
78
 
                // keep pulling off the first line's worth of chars, while the string is
79
 
                // still longer than a line should be
80
 
                while( line.length() > 75 )
81
 
                {
82
 
                        // length of the line we'll be pulling off
83
 
                        int len = 75;
84
 
 
85
 
                        // if splitting at this length would break apart a codepoint, use
86
 
                        // one less char
87
 
                        if( Character.isHighSurrogate( line.charAt( len - 1 ) ) )
88
 
                                len--;
89
 
 
90
 
                        // count how many backslashes would be at the end of the line we're
91
 
                        // pulling off
92
 
                        int count = 0;
93
 
                        for( int a = len - 1; a >= 0; a-- )
94
 
                                if( line.charAt( a ) == '\\' )
95
 
                                        count++;
96
 
                                else
97
 
                                        break;
98
 
 
99
 
                        // if there would be an odd number of slashes at the end of the line
100
 
                        // then pull off one fewer characters so that we don't break apart
101
 
                        // escape sequences
102
 
                        if( count % 2 == 1 )
103
 
                                len--;
104
 
 
105
 
                        // pull off the line and add it to the output, folded
106
 
                        ret.append( line.substring( 0, len ) + "\n " );
107
 
                        line = line.substring( len );
108
 
                }
109
 
 
110
 
                // add any remaining data
111
 
                ret.append( line );
112
 
 
113
 
                return ret.toString();
114
 
        }
115
 
 
116
 
        /**
117
 
         * Do unsafe character escaping
118
 
         * @param raw string
119
 
         * @return escaped string
120
 
         */
121
 
        private String escape( String str )
122
 
        {
123
 
                StringBuilder ret = new StringBuilder( str.length() );
124
 
                for( int a = 0; a < str.length(); a++ )
125
 
                {
126
 
                        int c = str.codePointAt( a );
127
 
                        switch( c )
128
 
                        {
129
 
                        case '\n':
130
 
                                // append escaped newline
131
 
                                ret.append( "\\n" );
132
 
                                break;
133
 
                        case ',':
134
 
                        case ';':
135
 
                        case '\\':
136
 
                                // append return character
137
 
                                ret.append( '\\' );
138
 
                                // fall through
139
 
                        default:
140
 
                                // append character
141
 
                                ret.append( Character.toChars( c ) );
142
 
                        }
143
 
                }
144
 
 
145
 
                return ret.toString();
146
 
        }
147
 
 
148
 
        /**
149
 
         * join
150
 
         */
151
 
        @SuppressWarnings( "rawtypes" )
152
 
        public static String join( AbstractCollection s, String delimiter)
153
 
        {
154
 
                StringBuffer buffer = new StringBuffer();
155
 
                Iterator iter = s.iterator();
156
 
                if( iter.hasNext() ) {
157
 
                        buffer.append( iter.next() );
158
 
                        while( iter.hasNext() ) {
159
 
                                buffer.append( delimiter );
160
 
                                buffer.append( iter.next() );
161
 
                        }
162
 
                }
163
 
                return buffer.toString();
164
 
        }
165
 
 
166
 
 
167
 
        @Override
168
 
        protected boolean exportContact( ContactData contact )
169
 
                throws AbortExportException
170
 
        {
171
 
                StringBuilder out = new StringBuilder();
172
 
 
173
 
                // skip if the contact has no identifiable features
174
 
                if( contact.getPrimaryIdentifier() == null )
175
 
                        return false;
176
 
 
177
 
                // append header
178
 
                out.append( "BEGIN:VCARD\n" );
179
 
                out.append( "VERSION:3.0\n" );
180
 
 
181
 
                // append formatted name
182
 
                String name = contact.getName();
183
 
                if( name == null ) name = "";
184
 
                out.append( fold( "FN:" + escape( name ) ) + "\n" );
185
 
 
186
 
                // append name
187
 
                String[] bits = name.split( " +" );
188
 
                StringBuilder tmp = new StringBuilder();
189
 
                for( int a = 1; a < bits.length - 1; a++ ) {
190
 
                        if( a > 1 ) tmp.append( " " );
191
 
                        tmp.append( escape( bits[ a ] ) );
192
 
                }
193
 
                String value = escape( bits[ bits.length - 1 ] ) + ";" +
194
 
                        ( bits.length > 1? escape( bits[ 0 ] ) : "" ) + ";" +
195
 
                        tmp.toString() + ";;";
196
 
                out.append( fold( "N:" + value ) + "\n" );
197
 
 
198
 
                // append organisations and titles
199
 
                ArrayList< Exporter.ContactData.OrganisationDetail > organisations =
200
 
                        contact.getOrganisations();
201
 
                if( organisations != null ) {
202
 
                        for( int a = 0; a < organisations.size(); a++ ) {
203
 
                                if( organisations.get( a ).getOrganisation() != null )
204
 
                                        out.append( fold( "ORG:" + escape(
205
 
                                                organisations.get( a ).getOrganisation() ) ) + "\n" );
206
 
                                if( organisations.get( a ).getTitle() != null )
207
 
                                        out.append( fold( "TITLE:" + escape(
208
 
                                                organisations.get( a ).getTitle() ) ) + "\n" );
209
 
                        }
210
 
                }
211
 
 
212
 
                // append phone numbers
213
 
                ArrayList< Exporter.ContactData.NumberDetail > numbers =
214
 
                        contact.getNumbers();
215
 
                if( numbers != null ) {
216
 
                        for( int a = 0; a < numbers.size(); a++ ) {
217
 
                                ArrayList< String > types = new ArrayList< String >();
218
 
                                switch( numbers.get( a ).getType() ) {
219
 
                                case ContactData.TYPE_HOME:
220
 
                                        types.add( "VOICE" ); types.add( "HOME" ); break;
221
 
                                case ContactData.TYPE_WORK:
222
 
                                        types.add( "VOICE" ); types.add( "WORK" ); break;
223
 
                                case ContactData.TYPE_FAX_HOME:
224
 
                                        types.add( "FAX" ); types.add( "HOME" ); break;
225
 
                                case ContactData.TYPE_FAX_WORK:
226
 
                                        types.add( "FAX" ); types.add( "WORK" ); break;
227
 
                                case ContactData.TYPE_PAGER:
228
 
                                        types.add( "PAGER" ); break;
229
 
                                case ContactData.TYPE_MOBILE:
230
 
                                        types.add( "VOICE" ); types.add( "CELL" ); break;
231
 
                                }
232
 
                                if( a == 0 ) types.add( "PREF" );
233
 
                                out.append( fold( "TEL" +
234
 
                                        ( types.size() > 0? ";TYPE=" + join( types, "," ) : "" ) +
235
 
                                        ":" + escape( numbers.get( a ).getNumber() ) ) + "\n" );
236
 
                        }
237
 
                }
238
 
 
239
 
                // append email addresses
240
 
                ArrayList< Exporter.ContactData.EmailDetail > emails =
241
 
                        contact.getEmails();
242
 
                if( emails != null ) {
243
 
                        for( int a = 0; a < emails.size(); a++ ) {
244
 
                                ArrayList< String > types = new ArrayList< String >();
245
 
                                types.add( "INTERNET" );
246
 
                                switch( emails.get( a ).getType() ) {
247
 
                                case ContactData.TYPE_HOME:
248
 
                                        types.add( "HOME" ); break;
249
 
                                case ContactData.TYPE_WORK:
250
 
                                        types.add( "WORK" ); break;
251
 
                                }
252
 
                                out.append( fold( "EMAIL" +
253
 
                                        ( types.size() > 0? ";TYPE=" + join( types, "," ) : "" ) +
254
 
                                        ":" + escape( emails.get( a ).getEmail() ) ) + "\n" );
255
 
                        }
256
 
                }
257
 
 
258
 
                // append addresses
259
 
                ArrayList< Exporter.ContactData.AddressDetail > addresses =
260
 
                        contact.getAddresses();
261
 
                if( addresses != null ) {
262
 
                        for( int a = 0; a < addresses.size(); a++ ) {
263
 
                                ArrayList< String > types = new ArrayList< String >();
264
 
                                types.add( "POSTAL" );
265
 
                                switch( addresses.get( a ).getType() ) {
266
 
                                case ContactData.TYPE_HOME:
267
 
                                        types.add( "HOME" ); break;
268
 
                                case ContactData.TYPE_WORK:
269
 
                                        types.add( "WORK" ); break;
270
 
                                }
271
 
                                // we use LABEL because is accepts formatted text (whereas ADR
272
 
                                // expects semicolon-delimited fields with specific purposes)
273
 
                                out.append( fold( "LABEL" +
274
 
                                        ( types.size() > 0? ";TYPE=" + join( types, "," ) : "" ) +
275
 
                                        ":" + escape( addresses.get( a ).getAddress() ) ) + "\n" );
276
 
                        }
277
 
                }
278
 
 
279
 
                // append notes
280
 
                ArrayList< String > notes = contact.getNotes();
281
 
                if( notes != null )
282
 
                        for( int a = 0; a < notes.size(); a++ )
283
 
                                out.append( fold( "NOTE:" + escape( notes.get( a ) ) ) + "\n" );
284
 
 
285
 
                // append footer
286
 
                out.append( "END:VCARD\n" );
287
 
 
288
 
                // replace '\n' with "\r\n" (spec requires CRLF)
289
 
                int pos = 0;
290
 
                while( true ) {
291
 
                        pos = out.indexOf( "\n", pos );
292
 
                        if( pos == -1 ) break;
293
 
                        out.replace( pos, pos + 1, "\r\n" );
294
 
 
295
 
                        // skip our inserted string
296
 
                        pos += 2;
297
 
                }
298
 
 
299
 
                // write to file
300
 
                try {
301
 
                        _ostream.write( out.toString().getBytes() );
302
 
                        _ostream.flush();
303
 
                }
304
 
                catch( IOException e ) {
305
 
                        showError( R.string.error_ioerror );
306
 
                }
307
 
 
308
 
                return true;
309
 
        }
310
 
 
311
 
}