Bug in QuotedPrintableInputStream

[Justin McCartney <be...@yahoo.co.uk>]

Hi,

I was using Mime4j to validate some emails supplied through an API to one of our internal systems.  Strict parsing was set to true.

Here is the behaviour of Mime4j that is I feel incorrect in QuotedPrintableInputStream.

A text file used as an inline attachment:

Content-Type: text/plain; charset=Cp1252
Content-Transfer-Encoding: quoted-printable

The second line below causes an error.  For clarity's sake I have added the the new line characters as CR and LF.

<?xml version=3D"1.0" standalone=3D"no"?>CRLF
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/=CRLF
SVG/1.1/DTD/svg11.dtd" >CRLF

The stack trace of the error:

Caused by: java.io.IOException: Found LF without CR
at org.apache.james.mime4j.codec.QuotedPrintableInputStream.read0(QuotedPrintableInputStream.java:194)
at org.apache.james.mime4j.codec.QuotedPrintableInputStream.read(QuotedPrintableInputStream.java:306)
at java.io.InputStream.read(InputStream.java:101)
at org.apache.james.mime4j.message.BasicBodyFactory.bufferContent(BasicBodyFactory.java:53)
at org.apache.james.mime4j.message.BasicBodyFactory.textBody(BasicBodyFactory.java:43)
at org.apache.james.mime4j.message.EntityBuilder.body(EntityBuilder.java:151)
at org.apache.james.mime4j.parser.MimeStreamParser.parse(MimeStreamParser.java:133)
at org.apache.james.mime4j.message.DefaultMessageBuilder.parseMessage(DefaultMessageBuilder.java:311)

I believe that second line in my example is correct.  It was created by Sun's com.sun.mail.util.QPEncoderStream.

The equals indicates a soft line break and the following CRLF is the valid new line marker for the mail message.

Any comments?

Thanks,

Justin

Re: Bug in QuotedPrintableInputStream

[Oleg Kalnichevski <ol...@apache.org>]

On Mon, 2014-01-27 at 14:44 +0000, Justin McCartney wrote:
> Hi,
> 
> I was using Mime4j to validate some emails supplied through an API to one of our internal systems.  Strict parsing was set to true.
> 
> Here is the behaviour of Mime4j that is I feel incorrect in QuotedPrintableInputStream.
> 
> A text file used as an inline attachment:
> 
> Content-Type: text/plain; charset=Cp1252
> Content-Transfer-Encoding: quoted-printable
> 
> The second line below causes an error.  For clarity's sake I have added the the new line characters as CR and LF.
> 
> <?xml version=3D"1.0" standalone=3D"no"?>CRLF
> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/=CRLF
> SVG/1.1/DTD/svg11.dtd" >CRLF
> 

Justin

Please raise a JIRA for this issue and attach the message causing the
exception to it.

Oleg