SusiMail: Fix unhandled decoding exception

Trim leading whitespace from charset

apps/susimail/src/src/i2p/susi/util/DecodingOutputStream.java

@@ -2,6 +2,7 @@ package i2p.susi.util;
 
 import java.io.IOException;
 import java.io.OutputStream;
+import java.io.UnsupportedEncodingException;
 import java.io.Writer;
 import java.nio.ByteBuffer;
 import java.nio.CharBuffer;
@@ -28,11 +29,18 @@ public class DecodingOutputStream extends OutputStream {
 
     /**
      *  @param out UTF-8
+     *  @throws UnsupportedEncodingException (an IOException) on unknown charset
      */
-    public DecodingOutputStream(Writer out, String charset) {
+    public DecodingOutputStream(Writer out, String charset) throws UnsupportedEncodingException {
         super();
         _out = out;
-        _dc = Charset.forName(charset).newDecoder();
+        try {
+            _dc = Charset.forName(charset).newDecoder();
+        } catch (IllegalArgumentException iae) {
+            UnsupportedEncodingException uee = new UnsupportedEncodingException("Unsupported charset \"" + charset + '"');
+            uee.initCause(iae);
+            throw uee;
+        }
         _bb = ByteBuffer.allocate(1024);
         _cb = CharBuffer.allocate(1024);
     }						

apps/susimail/src/src/i2p/susi/webmail/MailPart.java

@@ -472,7 +472,7 @@ class MailPart {
 					/*
 					 * no " found and no ;
 					 */
-					result = line.substring( j + 1 );
+					result = line.substring( j + 1 ).trim();
 				}
 			}
 		}

apps/susimail/src/src/i2p/susi/webmail/WebMail.java

@@ -2898,8 +2898,8 @@ public class WebMail extends HttpServlet
 				cc = arrayToCSV(draft.cc);
 				bcc = arrayToCSV(draft.getBcc());
 				StringWriter body = new StringWriter(1024);
-				Buffer ob = new OutputStreamBuffer(new DecodingOutputStream(body, "UTF-8"));
 				try {
+					Buffer ob = new OutputStreamBuffer(new DecodingOutputStream(body, "UTF-8"));
 					draft.getPart().decode(0, ob);
 				} catch (IOException ioe) {
 					sessionObject.error += "Draft decode error: " + ioe.getMessage() + '\n';