Forum Discussion
Iroads
Altostratus
Altostratusgoogle-visualization-issues
Hi I noticed that the Google API that generates QR images is down. In F5, is it still possible to generate new QR Codes for access with Google Authenticator. it only works for a few hours a day, maybe some other alternative?
Iroadsthank you very much it works
So basically all I had to do was add ga_create/
After the address of the VS?
Anzine321Altocumulus
i have a probllem why barcode was broken ? is that related to google authenticator link no change on f5
Google stopped with the Image Chart API service which is used in the iRule. See: Image Charts | Google for Developers
Yes, that's all.
- Iroads
when HTTP_REQUEST {
set account [URI::query [HTTP::uri] "account"]
set domain [URI::query [HTTP::uri] "domain"]
set secret [URI::query [HTTP::uri] "secret"]
set qr_code [URI::query [HTTP::uri] "qr_code"]if { ([HTTP::path] starts_with "/ga_secret_generator") && ($account ne "") && ($domain ne "") } {
if { [string length $secret] <= 10 } {
set secret [b64encode [md5 [expr rand()]]]
}set secret [string range $secret 0 9]
array set b32_alphabet_inv {
0 A 1 B 2 C 3 D
4 E 5 F 6 G 7 H
8 I 9 J 10 K 11 L
12 M 13 N 14 O 15 P
16 Q 17 R 18 S 19 T
20 U 21 V 22 W 23 X
24 Y 25 Z 26 2 27 3
28 4 29 5 30 6 31 7
}set secret_b32 ""
set l [string length $secret]
set n 0
set j 0# encode loop is outlined in RFC 4648 (http://tools.ietf.org/html/rfc4648#page-8)
for { set i 0 } { $i < $l } { incr i } {
set n [expr $n << 8]
set n [expr $n + [scan [string index $secret $i] %c]]
set j [incr j 8]while { $j >= 5 } {
set j [incr j -5]
append secret_b32 $b32_alphabet_inv([expr ($n & (0x1F << $j)) >> $j])
}
}# pad final input group with zeros to form an integral number of 5-bit groups, then encode
if { $j > 0 } { append secret_b32 $b32_alphabet_inv([expr $n << (5 - $j) & 0x1F]) }# if the final quantum is not an integral multiple of 40, append "=" padding
set pad [expr 8 - [string length $secret_b32] % 8]
if { ($pad > 0) && ($pad < 😎 } { append secret_b32 [string repeat = $pad] }
set ga_qr_code_link "https://quickchart.io/chart?chs=200x200&chld=M|0&cht=qr&chl=otpauth://totp/"
# set ga_qr_code_link "https://api.qrserver.com/v1/create-qr-code/?size=200x200&data=M|0&cht=qr&chl=otpauth://totp/"
# set ga_qr_code_link "https://chart.googleapis.com/chart?chs=200x200&chld=M|0&cht=qr&chl=otpauth://totp/"
append ga_qr_code_link "$account@$domain"
append ga_qr_code_link "%3Fsecret%3D"
append ga_qr_code_link $secret_b32
set ga_secret_http_resp {<html>
<body>
<div align="center">
}if { $qr_code eq "yes" } {
append ga_secret_http_resp " <img src=\"$ga_qr_code_link\" />\n"
}append ga_secret_http_resp " <p><b>Insert in extensionAttribute2</b></p>"
append ga_secret_http_resp " <p>account: $account@$domain"
append ga_secret_http_resp "key (secret): $secret_b32</p>\n </div>\n </body>\n</html>"HTTP::respond 200 content $ga_secret_http_resp
} else {
HTTP::respond 200 content {<html>
<body>
<h2><a href="http://goo.gl/edmb2">Google Authenticator</a> key (shared secret) generator</h2>
<form action="/ga_secret_generator" method="GET">
<table cellspacing="1" cellpadding="1" border="0">
<tr>
<th align="left">account:</th>
<td><input name="account" type="text" size="10"> @ <input name="domain" type="text" size="20"></td>
</tr>
<tr>
<th align="left">secret:</th>
<td><input name="secret" type="text" size="10"> *optional 10 character key (additional chars truncated), random secret used if blank</td>
</tr>
<tr>
<th align="left">generate QR code?</th>
<td><input name="qr_code" type="checkbox" value="yes"> *a request will be made to Google to generate QR code</td>
</tr>
</table>
<input type="submit" value="Submit">
</form>
</body>
</html>}
}
} Yes, I've created a version that doesn't rely on Google API.
See: https://github.com/nvansluis/irules/blob/main/generate_ga_code.tcl
Have fun,
--Niels
- Iroads
Hi, thank you very much for the solution. it looks good.
But I remember that in the old iRule there was a link " set ga_qr_code_link "https://chart.googleapis.com/chart?chs=200x200&chld=M|0&cht=qr&chl=otpauth://totp/ " .Now I don't see it.
When I connect to VS on https I get nothing. Is there anything I should check/change?It needed a small update. Download the new version and try again.
