Unicode in cgi-script with apache2
wxjmfauth at gmail.com
wxjmfauth at gmail.com
Sat Aug 16 10:02:15 EDT 2014
Le samedi 16 août 2014 13:17:16 UTC+2, Peter Otten a écrit :
> Dominique Ramaekers wrote:
>
>
>
> > I've got a little script:
>
> >
>
> > #!/usr/bin/env python3
>
> > print("Content-Type: text/html")
>
> > print("Cache-Control: no-cache, must-revalidate") # HTTP/1.1
>
> > print("Expires: Sat, 26 Jul 1997 05:00:00 GMT") # Date in the past
>
> > print("")
>
> > f = open("/var/www/cgi-data/index.html", "r")
>
> > for line in f:
>
> > print(line,end='')
>
> >
>
> > If I run the script in the terminal, it nicely prints the webpage
>
> > 'index.html'.
>
> >
>
> > If access the script through a webbrowser, apache gives an error:
>
> > UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position
>
> > 1791: ordinal not in range(128)
>
> >
>
> > I've done a hole afternoon of reading on fora and blogs, I don't have a
>
> > solution.
>
> >
>
> > Can anyone help me?
>
>
>
> If the input and output encoding are the same you can avoid the byte-to-text
>
> (and subsequent text-to-byte conversion) and serve the binary contents of
>
> the index.html file directly:
>
>
>
> #!/usr/bin/env python3
>
> import sys
>
>
>
> print("Content-Type: text/html")
>
> print("Cache-Control: no-cache, must-revalidate") # HTTP/1.1
>
> print("Expires: Sat, 26 Jul 1997 05:00:00 GMT") # Date in the past
>
> print("")
>
> sys.stdout.flush()
>
> with open("/var/www/cgi-data/index.html", "rb") as f:
>
> for line in f:
>
> sys.stdout.buffer.write(line)
>
>
>
> The flush() is necessary to write pending data before accessing the lowlevel
>
> stdout.buffer. Instead of the loop you can use any of these:
>
>
>
> sys.stdout.buffer.write(f.read()) # not for huge files, but should be OK for
>
> # typical html file sizes
>
> sys.stdout.buffer.writelines(f)
>
> shutil.copyfileobj(f, sys.stdout.buffer) # show off your knowledge
>
> # of the stdlib ;)
>
>
>
>
>
> Alternatively you could choose an encoding via the locale:
>
>
>
> #!/usr/bin/env python3
>
> import locale
>
> locale.setlocale(locale.LC_ALL, "en_US.UTF-8")
>
>
>
> print("Content-Type: text/html")
>
> print("Cache-Control: no-cache, must-revalidate") # HTTP/1.1
>
> print("Expires: Sat, 26 Jul 1997 05:00:00 GMT") # Date in the past
>
> print("")
>
> with open("/var/www/cgi-data/index.html") as f:
>
> for line in f:
>
> print(line, end='')
>
>
>
> Python should then use UTF-8 as the default for i/o and the resulting
>
> scripts looks more familiar.
Wrong. It will not work with a Japanese or a Korean iso-2022-xx
html file.
jmf
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