Problem Displaying Pics

Victor Subervi victorsubervi at gmail.com
Wed Oct 7 23:05:25 CEST 2009


print 'Content-Type: image/jpeg'
print 'Content-Encoding: base64'
print
print content.encode('base64')

I did change it to text/plain, but I don't know how I'm supposed to manually
decode it. Yes, it printed out a bunch of crap to the screen. I've gotten
that far before, and once I read "Adobe" something, so yes, it's an image.
TIA,
V

On Wed, Oct 7, 2009 at 3:52 PM, Rami Chowdhury <rami.chowdhury at gmail.com>wrote:

> On Wed, 07 Oct 2009 13:24:28 -0700, Victor Subervi <
> victorsubervi at gmail.com> wrote:
>
>  I did that. In fact, just to make things easier, I wrote out exactly what
>> is
>> supposed to be rendered, as below:
>>
>> #!/usr/local/bin/python
>> import cgitb; cgitb.enable()
>> import MySQLdb
>> import cgi
>> import sys,os
>> sys.path.append(os.getcwd())
>> from login import login
>> user, passwd, db, host = login()
>> form = cgi.FieldStorage()
>> db = MySQLdb.connect(host, user, passwd, db)
>> cursor= db.cursor()
>> sql = "select pic1 from products where id='1';"
>> cursor.execute(sql)
>> content = cursor.fetchall()[0][0].tostring()
>> cursor.close()
>> print '''Content-Type: image/jpeg'''    # Only print one line
>>
>> Content-Encoding: base64
>> '''
>> print
>> print content.encode('base64')
>>
>>
> Just to reiterate what Gabriel and Carsten have pointed out, I'd suggest
> changing the last few lines of the script, as the comments below indicate:
>
> print '''Content-Type: image/jpeg''' # One header line
> print '''Content-Encoding: base64''' # Another header line. Note *no* blank
> line between them
> print                                # Blank line signals the end of the
> headers
> print content.encode(base64)         # Base64-encoded content comes *after*
> the blank line
>
> If you include extra blank lines after the headers, the browser will
> misunderstand where the binary image data begins, and so will see a
> malformed JPEG.
>
> If this doesn't work, I suggest changing the content-type header to
> text/plain and trying to manually decode and check the image data to ensure
> it's valid.
>
>
>
>> On Wed, Oct 7, 2009 at 2:47 PM, Gabriel Genellina <gagsl-py2 at yahoo.com.ar
>> >wrote:
>>
>>  En Wed, 07 Oct 2009 12:00:13 -0300, Victor Subervi
>>> <victorsubervi at gmail.com> escribió:
>>>
>>> > print '''Content-Type: image/jpeg
>>> >
>>> > '''
>>> > print
>>> > print content
>>>
>>> On Wed, Oct 7, 2009 at 9:51 AM, Gabriel Genellina <gagsl-
>>> py2 at yahoo.com.ar>wrote:
>>>
>>> > That's still wrong. The output should be:
>>> >
>>> > - a line containing Content-Type: image/jpeg
>>> > - a blank line (no more!)
>>>        ^^^^^^^^^^^^^^^^^^^^^^^^^
>>> > - the actual image data
>>>
>>> --
>>> Gabriel Genellina
>>> --
>>> http://mail.python.org/mailman/listinfo/python-list
>>>
>>>
>
>
> --
> Rami Chowdhury
> "Never attribute to malice that which can be attributed to stupidity" --
> Hanlon's Razor
> 408-597-7068 (US) / 07875-841-046 (UK) / 0189-245544 (BD)
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/python-list/attachments/20091007/f6c9c258/attachment.html>


More information about the Python-list mailing list