QR code, 400 error

[Dave Bowles]

The following HTML attempts to open a page to display a one-time-
password key for use with Google Authentication:

<a href="https://www.google.com/chart?chs=200x200&chld=M|
0&cht=qr&chl=otpauth://totp/
bowl...@industrialwebapps.com&secret=GSW32NEGT2R4A6TU">Test Link</a>

The page opens with a "400 error". Simply highlighting a portion of
the URL then hitting the enter key cause the page to draw correctly
despite no change being made to the address.

[asgallant]

It works for me.

[Dave Bowles]

Drew, thanks for your effort!

It works for me if I paste the address directly into a browser address bar.

If the HTML is contained in a PHP file and the resulting link is clicked on, I get the 400 error.

On Fri, Oct 28, 2011 at 9:10 AM, asgallant <drew_g...@abtassoc.com> wrote:

It works for me.

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[Dave Bowles]

Got a tip via email from someone who read this that solved my problem.  Here is a PHP snippet that works:

        // Get the QR Code png file from google and display it

        $url = 'https://www.google.com/chart?chs=200x200&chld=M|0&cht=qr&chl=otpauth://totp/'.$user_name.'@industrialwebapps.com%3Fsecret%3D'.$otp_key;

        $png = file_get_contents($url);

        $fn  = '/pdfs/test.png';

        $fh  = fopen('/var/www'.$fn, 'w');

        fwrite($fh, $png);

        fclose($fh);

        echo 'Google Authenticator Key: <b>'.$otp_key.'</b><br />';

        echo 'QR Code for some <a href="twoFactorAuth.php" target="_blank">Smart Phone apps.</a>: ';

        echo '<img src="'.$fn.'" />';