Re: [vox-tech] when is an html image sent?
On Friday 16 December 2005 11:24 pm, Peter Jay Salzman wrote: ... No matter what I try, though, I can't access sessions from the captcha2.php file. I guess it must interfere with the image being sent to the client. Oooh. It must be that there's no mechanism for the browser to send the cookie (which contains the session ID) when it requests an image. Sorry I caused you so much trouble. I think what may work is to send the session ID in the URL. That is, construct the image URL like this: $url = 'captcha2.php?' . session_name() . '=' . session_id(); and then your form requests the image with: img src='?php echo $url ?' or whatever the equivalent is with Smarty. I have not tried this, it's just my best guess from reading the docs. -- Rod ___ vox-tech mailing list vox-tech@lists.lugod.org http://lists.lugod.org/mailman/listinfo/vox-tech
Re: [vox-tech] when is an html image sent?
On Sat 17 Dec 05, 12:15 AM, Rod Roark [EMAIL PROTECTED] said:
On Friday 16 December 2005 11:24 pm, Peter Jay Salzman wrote:
... No matter what I try, though, I
can't access sessions from the captcha2.php file. I guess it must interfere
with the image being sent to the client.
Oooh. It must be that there's no mechanism for the browser to send
the cookie (which contains the session ID) when it requests an
image. Sorry I caused you so much trouble.
I think what may work is to send the session ID in the URL. That is,
construct the image URL like this:
$url = 'captcha2.php?' . session_name() . '=' . session_id();
and then your form requests the image with:
img src='?php echo $url ?'
or whatever the equivalent is with Smarty.
I have not tried this, it's just my best guess from reading the docs.
Thanks Rod!
Unfortunately, it's still not working. Here's what I tried:
Smarty template/web page view_by_permalink.php:
$smarty-assign('sessionId', session_id());
$smarty-assign('sessionName', session_name());
img src=captcha2.php?{$sessionName}={$sessionId} alt=validation string
/
captcha2.php:
session_id( $_REQUEST['PHPSESSID'] );
start_session();
$_SESSION['captcha'] = $cmntPass;
Using error_log(), I determined that in captcha2.php, $_REQUEST['PHPSESSID']
is the correct session ID. But something isn't right because if I stick
error_log('hello world');
in captcha2.php before start_session(), the message appears in my error log.
But if I stick it in after start_session(), it doesn't appear. So PHP seems
to be very unhappy with the start_session() line.
Needless to say, 'captcha' is an undefined $_SESSION index in the receiving
form.
I'm really on ground here. I'm reading, but there's enough documentation to
drown in.
Have any idea on how to proceed?
Pete
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Re: [vox-tech] when is an html image sent?
On Sat, Dec 17, 2005 at 10:16:07AM -0500, Peter Jay Salzman wrote: Have any idea on how to proceed? Have your image.php script dump the environment to a file you can review. You should see a number of interesting things in there, like the source ip address and port, browser version, etc, etc. If you md5sum some of that stuff together, you'll get a key, which you could then store related to that session, and use from the image to find that session. Probably. Depending on what you use that may not be foolproof -- so think about it. Aol has proxies that might hide a bunch of people, and so forth. -- Ted Deppner http://www.deppner.us/ ___ vox-tech mailing list vox-tech@lists.lugod.org http://lists.lugod.org/mailman/listinfo/vox-tech
Re: [vox-tech] when is an html image sent?
On Saturday 17 December 2005 07:16 am, Peter Jay Salzman wrote: ... captcha2.php: session_id( $_REQUEST['PHPSESSID'] ); Try it without explicitly setting the session ID here. PHP is supposed to parse the session ID from the URL transparently. If you set it with session_id(...) then a new cookie will be sent, and that may not be valid when returning an image. Also make sure session.use_only_cookies is not set in your php.ini. I'll cross my fingers for you. ;-) -- Rod ___ vox-tech mailing list vox-tech@lists.lugod.org http://lists.lugod.org/mailman/listinfo/vox-tech
Re: [vox-tech] when is an html image sent?
OK I couldn't stand it and did a test. test1.php: ?php session_start(); if (!isset($_SESSION['count'])) $_SESSION['count'] = 0; else $_SESSION['count']++; echo Count is . $_SESSION['count'] . br; echo img src='test2.php'; ? test2.php: ?php header(Content-type: image/png); session_start(); if (!isset($_SESSION['count'])) $_SESSION['count'] = 0; else $_SESSION['count']++; $im = @imagecreate(100, 50); $background_color = imagecolorallocate($im, 255, 255, 255); $text_color = imagecolorallocate($im, 233, 14, 91); imagestring($im, 1, 5, 5, Testing, $text_color); imagepng($im); imagedestroy($im); ? Everything seems to work, even with just cookies. The count increments by 2 on each refresh, and the image is displayed. -- Rod ___ vox-tech mailing list vox-tech@lists.lugod.org http://lists.lugod.org/mailman/listinfo/vox-tech
Re: [vox-tech] gpg-agent issues
On Fri, Dec 16, 2005 at 10:02:00AM -0800, Richard Crawford wrote: I'm trying to get gpg-agent running on my FC3 laptop so that I don't have to type in my passphrase each time I send out an e-mail. Unfortunately, when I try to start gpg-agent with the command: $ gpg-agent I get the following error message: gpg-agent: can't connect to '/home/richard/.gnupg/S.gpg-agent': No such file or directory gpg-agent: no gpg-agent running in this session snip When, for kicks and giggles, I try to execute: $ gpg-agent --daemon I get this error message: can't connect to '/home/richard/.gnupg/log-socket': No such file or directory GPG_AGENT_INFO=/tmp/gpg-4p6U8v/S.gpg-agent:10175:1 export GPG_AGENT_INFO; ...even though there is a file in /home/richard/.gnupg called log-socket. However, that file appears to be empty. Also, when I again execute The error message above looks very fishy indeed: it looks like it's attempting to read in that entire line, starting with GPG_AGENT_INFO and ending with the export command, as the /name/ of a file. Try to find out what is doing that (a miswritten config file somewhere?) You can use the fuser or lsof commands to find all the processes that have a given file open: that could come in handy; as could examining the /proc/pid directory of gpg-agent (run with --daemon), and examining what files it has open. HTH, Micah ___ vox-tech mailing list vox-tech@lists.lugod.org http://lists.lugod.org/mailman/listinfo/vox-tech
Re: [vox-tech] when is an html image sent?
On Sat 17 Dec 05, 9:59 AM, Rod Roark [EMAIL PROTECTED] said: OK I couldn't stand it and did a test. Rod, can you take a look here: http://www.dirac.org/blog/view_by_permalink.php?the_id=103 at the graphic image at the bottom of the page? Pete ___ vox-tech mailing list vox-tech@lists.lugod.org http://lists.lugod.org/mailman/listinfo/vox-tech
Re: [vox-tech] when is an html image sent?
On Saturday 17 December 2005 01:55 pm, Peter Jay Salzman wrote: On Sat 17 Dec 05, 9:59 AM, Rod Roark [EMAIL PROTECTED] said: OK I couldn't stand it and did a test. Rod, can you take a look here: http://www.dirac.org/blog/view_by_permalink.php?the_id=103 at the graphic image at the bottom of the page? LOL. You're welcome. ;-) So what was the problem? -- Rod ___ vox-tech mailing list vox-tech@lists.lugod.org http://lists.lugod.org/mailman/listinfo/vox-tech
Re: [vox-tech] when is an html image sent?
On Sat 17 Dec 05, 2:09 PM, Rod Roark [EMAIL PROTECTED] said: On Saturday 17 December 2005 01:55 pm, Peter Jay Salzman wrote: On Sat 17 Dec 05, 9:59 AM, Rod Roark [EMAIL PROTECTED] said: OK I couldn't stand it and did a test. Rod, can you take a look here: http://www.dirac.org/blog/view_by_permalink.php?the_id=103 at the graphic image at the bottom of the page? LOL. You're welcome. ;-) So what was the problem? -- Rod It was a mistake in my PHP. I didn't get the error message because the message got eaten by the graphic image. If I looked at my browser's cache for the validation image with a binary editor, I probably would've seen the error message. :) At least, that's what I think happened. Pete ___ vox-tech mailing list vox-tech@lists.lugod.org http://lists.lugod.org/mailman/listinfo/vox-tech
