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https://issues.apache.org/jira/browse/CXF-7530?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Freeman Fang reassigned CXF-7530:
---------------------------------
Assignee: Freeman Fang
> AttachmentSerializer miss a CRLF before the multipart-body per spec rfc2046
> ---------------------------------------------------------------------------
>
> Key: CXF-7530
> URL: https://issues.apache.org/jira/browse/CXF-7530
> Project: CXF
> Issue Type: Bug
> Reporter: Freeman Fang
> Assignee: Freeman Fang
>
> In rfc2046[1], the MIME message should be
> {code}
> Appendix A -- Collected Grammar
> This appendix contains the complete BNF grammar for all the syntax
> specified by this document.
> By itself, however, this grammar is incomplete. It refers by name to
> several syntax rules that are defined by RFC 822. Rather than
> reproduce those definitions here, and risk unintentional differences
> between the two, this document simply refers the reader to RFC 822
> for the remaining definitions. Wherever a term is undefined, it
> refers to the RFC 822 definition.
> boundary := 0*69<bchars> bcharsnospace
> bchars := bcharsnospace / " "
> bcharsnospace := DIGIT / ALPHA / "'" / "(" / ")" /
> "+" / "_" / "," / "-" / "." /
> "/" / ":" / "=" / "?"
> body-part := <"message" as defined in RFC 822, with all
> header fields optional, not starting with the
> specified dash-boundary, and with the
> delimiter not occurring anywhere in the
> body part. Note that the semantics of a
> part differ from the semantics of a message,
> as described in the text.>
> close-delimiter := delimiter "--"
> dash-boundary := "--" boundary
> ; boundary taken from the value of
> ; boundary parameter of the
> ; Content-Type field.
> delimiter := CRLF dash-boundary
> discard-text := *(*text CRLF)
> ; May be ignored or discarded.
> encapsulation := delimiter transport-padding
> CRLF body-part
> epilogue := discard-text
> multipart-body := [preamble CRLF]
> dash-boundary transport-padding CRLF
> body-part *encapsulation
> Freed & Borenstein Standards Track [Page 43]
>
> RFC 2046 Media Types November 1996
> close-delimiter transport-padding
> [CRLF epilogue]
> preamble := discard-text
> transport-padding := *LWSP-char
> ; Composers MUST NOT generate
> ; non-zero length transport
> ; padding, but receivers MUST
> ; be able to handle padding
> ; added by message transports.
> {code}
> So the
> {code}
> multipart-body := [preamble CRLF]
> preamble := discard-text
> {code}
> [1]https://www.ietf.org/rfc/rfc2046.txt
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