cgi, parse_header and semi-colon

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  • Sylvain
    #1

    cgi, parse_header and semi-colon

    Hi,

    I'm playing with Google App Engine and during my tests it seems that
    there is a bug in cgi. parse_header function.

    If we upload a file with a semi-colon (i.e : "C:/my;file.jpg") :
    cgi.FieldStorag e.filename returns only "my" everything after the semi-
    colon is missing

    Is it a bug or i'm missing something ?

    Regards
    Tags: None
    • Richard Brodie
      #2
      Re: cgi, parse_header and semi-colon


      "Sylvain" <sylvain.vivien @gmail.comwrote in message
      news:b80af57f-897d-4fd1-bebc-df0782143314@25 g2000hsx.google groups.com...
      If we upload a file with a semi-colon (i.e : "C:/my;file.jpg") :
      cgi.FieldStorag e.filename returns only "my" everything after the semi-
      colon is missing
      >
      Is it a bug or i'm missing something ?
      I doubt it's bug in parse_header, since it's meant to split on
      semicolons. Whether it's a bug in one of its callers, or the client
      not escaping sufficiently, I couldn't say offhand.


        Comment

        • Sylvain
          #3
          Re: cgi, parse_header and semi-colon

          On Jun 6, 5:33 pm, "Richard Brodie" <R.Bro...@rl.ac .ukwrote:
          "Sylvain" <sylvain.viv... @gmail.comwrote in message
          >
          news:b80af57f-897d-4fd1-bebc-df0782143314@25 g2000hsx.google groups.com...
          >
          If we upload a file with a semi-colon (i.e : "C:/my;file.jpg") :
          cgi.FieldStorag e.filename returns only "my" everything after the semi-
          colon is missing
          >
          Is it a bug or i'm missing something ?
          >
          I doubt it's bug inparse_header, since it's meant to split on
          semicolons. Whether it's a bug in one of its callers, or the client
          not escaping sufficiently, I couldn't say offhand.
          I've printed the filename in the content-disposition header :
          filename="my;fi le.jpg"

          If you look at the http://www.ietf.org/rfc/rfc2183.txt about "content-
          disposition" :

          "A short parameter value containing only ASCII characters, but
          including `tspecials' characters, SHOULD be represented as `quoted-
          string'."

          So my header is correct but i think there is clearly a bug in the
          parse_header and "content-disposition" should not be "splitted" only
          with the split(';') method but should look at quoted-string too.

          Regards

            Comment

            • Gabriel Genellina
              #4
              Re: cgi, parse_header and semi-colon

              En Sat, 07 Jun 2008 04:49:41 -0300, Sylvain <sylvain.vivien @gmail.com>
              escribió:
              If we upload a file with a semi-colon (i.e : "C:/my;file.jpg") :
              cgi.FieldStorag e.filename returns only "my" everything after the semi-
              colon is missing
              It's a known bug: http://bugs.python.org/issue1540529 - the patch is
              waiting for review...

              --
              Gabriel Genellina

                Comment

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