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Correctly encode attachment filenames with non-ASCII characters. Thanks to jca02266 who provided the base patch.

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Fixes issue 1555
This commit is contained in:
cketti 2010-05-11 15:05:50 +00:00
parent d5b128e8cf
commit 2121ebc012
1 changed files with 35 additions and 3 deletions
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38
src/com/fsck/k9/activity/MessageCompose.java
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@ -36,6 +36,7 @@ import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.StringTokenizer;
import org.apache.james.mime4j.codec.EncoderUtil;
public class MessageCompose extends K9Activity implements OnClickListener, OnFocusChangeListener
{
@ -747,10 +748,41 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
for (int i = 0, count = mAttachments.getChildCount(); i < count; i++)
{
Attachment attachment = (Attachment) mAttachments.getChildAt(i).getTag();
MimeBodyPart bp = new MimeBodyPart(new LocalStore.LocalAttachmentBody(attachment.uri, getApplication()));
bp.addHeader(MimeHeader.HEADER_CONTENT_TYPE, String.format("%s;\n name=\"%s\"", attachment.contentType, attachment.name));
MimeBodyPart bp = new MimeBodyPart(
new LocalStore.LocalAttachmentBody(attachment.uri, getApplication()));
/*
* Correctly encode the filename here. Otherwise the whole
* header value (all parameters at once) will be encoded by
* MimeHeader.writeTo().
*/
bp.addHeader(MimeHeader.HEADER_CONTENT_TYPE, String.format("%s;\n name=\"%s\"",
attachment.contentType,
EncoderUtil.encodeIfNecessary(attachment.name,
EncoderUtil.Usage.WORD_ENTITY, 7)));
bp.addHeader(MimeHeader.HEADER_CONTENT_TRANSFER_ENCODING, "base64");
bp.addHeader(MimeHeader.HEADER_CONTENT_DISPOSITION, String.format("attachment;\n filename=\"%s\";\n size=%d", attachment.name, attachment.size));
/*
* TODO: Oh the joys of MIME...
*
* From RFC 2183 (The Content-Disposition Header Field):
* "Parameter values longer than 78 characters, or which
* contain non-ASCII characters, MUST be encoded as specified
* in [RFC 2184]."
*
* Example:
*
* Content-Type: application/x-stuff
* title*1*=us-ascii'en'This%20is%20even%20more%20
* title*2*=%2A%2A%2Afun%2A%2A%2A%20
* title*3="isn't it!"
*/
bp.addHeader(MimeHeader.HEADER_CONTENT_DISPOSITION, String.format(
"attachment;\n filename=\"%s\";\n size=%d",
attachment.name, attachment.size));
mp.addBodyPart(bp);
}