| package org.apache.james.mime4j.dom; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.UnsupportedEncodingException; |
| |
| import org.apache.james.mime4j.message.BasicBodyFactory; |
| import org.apache.james.mime4j.message.DefaultMessageBuilder; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| /** |
| * check that the Charset handling of BasicBodyFactory can be influenced with |
| * the boolean lenient flag |
| * |
| * @author wf |
| * |
| */ |
| public class MessageCharsetLenientTest { |
| |
| /** |
| * set up a message with an invalid charset |
| * |
| * @throws Exception |
| */ |
| @Test |
| public void testLenientCharsetHandling() throws Exception { |
| // this list of invalidCharsets is taken from parsing a sample of some 1/4 million e-mails |
| // so all of the showed up in real world e-mails |
| String invalidCharsets[] = { |
| "%CHARSET", |
| "'iso-8859-1'", |
| "'utf-8'", |
| "0", |
| "238", |
| "DEFAULT_CHARSET", |
| "DIN_66003", |
| "ISO 8859-1", |
| "None", |
| "Standard", |
| "UTF-7", |
| "X-CTEXT", |
| "X-UNKNOWN", |
| "\\iso-8859-1\"", |
| "\\us-ascii\"", |
| "ansi_x3.110-1983", |
| "charset=us-ascii", |
| "en", |
| "iso-0-250-250-250-25-0-25", |
| "iso-10646", |
| "iso-1149-1", |
| "iso-2191-1", |
| "iso-3817-4", |
| "iso-4736-8", |
| "iso-5266-7", |
| "iso-5666-3", |
| "iso-5978-6", |
| "iso-6558-5", |
| "iso-7708-8", |
| "iso-8085-5", |
| "iso-8589-0", |
| "iso-8814-4", |
| "iso-8859-1 name=FAQ.htm", |
| "iso-8859-16", |
| "iso-8859-1?", |
| "iso-8859-8-i", |
| "iso-9284-4", |
| "latin-iso8859-1", |
| "unicode-1-1-utf-7", |
| "unknown-8bit", |
| "utf-7", |
| "windows-1250 reply-type=original", |
| "windows-1252 <!DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN>", |
| "x-user-defined", " {$RND_CHARSET$}" }; |
| |
| // check with lenient charset handling on and off |
| boolean[] lenientstates = { true, false }; |
| // create the message builder |
| DefaultMessageBuilder builder = new DefaultMessageBuilder(); |
| // count how many Exception hits we got |
| int invalidCount=0; |
| // test in bosh states |
| for (boolean lenient : lenientstates) { |
| // set how lenient we are |
| builder.setBodyFactory(new BasicBodyFactory(lenient)); |
| // check the list of invalid Charsets |
| for (String invalidCharset : invalidCharsets) { |
| // create a message with the charset |
| String charsetContent = "Subject: my subject\r\n" |
| + "Content-Type: text/plain; charset=" + invalidCharset + "\r\n" |
| + "Strange charset isn't it?\r" + "\r\n"; |
| // try parsing it |
| try { |
| Message message = builder.parseMessage(new ByteArrayInputStream( |
| charsetContent.getBytes("UTF-8"))); |
| // check some message attribute |
| Assert.assertEquals("text/plain", message.getMimeType()); |
| // if we get here we had a lenient mode - in non lenient an exception would have been thrown |
| Assert.assertTrue("Charset:"+invalidCharset+" should not be allowed when lenient is "+lenient,lenient); |
| } catch (UnsupportedEncodingException ex) { |
| Assert.assertFalse("Charset:"+invalidCharset+" should not throw an exception when lenient is "+lenient,lenient); |
| invalidCount++; |
| } |
| } |
| } // for |
| Assert.assertEquals(invalidCharsets.length,invalidCount); |
| } |
| |
| } |
