Re: CAPTCHA system in webDNA
This WebDNA talk-list message is from 2005
It keeps the original formatting.
numero = 60807
interpreted = N
texte = You're trying to prevent automatic email deletion from an opt-in mailing list? I wouldn't mess with the system you're suggesting at all. Instead when the visitor enters his (or someone else's) email address into the email field in your unsubscribe form, I would enter a unique value into the 'unsubscribe' field of his database record: [replace db=subscribers.db&eqemaildatarq=[email]]unsubscribe=[cart][/replace] .... and then in the same template I would send the visitor an email message with a URL that has that same unique value in it, like this: ************************************ "Someone entered your email address into the UNSUBSCRIBE page on our web site. If that person was you, and if you really want to unsubscribe, just click this link and we will unsubscribe you immediately:" http://domain.com/page.html?out=[cart] "But if you do NOT want to unsubscribe from our list, please just ignore this message, thanks." ************************************ The person who receives this email message may (or may not ) click that link. If he clicks the link, your webdna code simply deletes the only record in the subscribers database that has that unique 'out' value in the unsubscribe field: [delete db=subscribers.db&equnsubscribedatarq=[out]] Simple and efficient, and no images or other non-webdna tricks required. :) Sincerely, Kenneth Grome www.kengrome.com >I'm less trusting than you are. I could have a script up and >running within an hour that creates havoc. A truly proficient >programmer could do it much faster. This for automatic email >deletion from an opt-in list. I don't even want the possibility. >Even now the image problem is being solved by scientists hoping to >beat the reverse Turing test. >Bill > >-----Original Message----- >From: Kenneth Grome
>Sent: Wed, 19 Jan 2005 22:21:22 +0800 >To: "WebDNA Talk" >Subject: Re: CAPTCHA system in webDNA > >The bot programmer would have to custom code a bot specifically for >a site that uses this technique, and it's possible but unlikely, >don't you think? > > >>But what about when the bots figure it out and are reprogrammed to >>bypass? Clever, but not secure. >>-Dan >> > > >------------------------------------------------------------- >This message is sent to you because you are subscribed to > the mailing list . >To unsubscribe, E-mail to: >To switch to the DIGEST mode, E-mail to > >Web Archive of this list is at: http://webdna.smithmicro.com/ -- ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
Associated Messages, from the most recent to the oldest:
You're trying to prevent automatic email deletion from an opt-in mailing list? I wouldn't mess with the system you're suggesting at all. Instead when the visitor enters his (or someone else's) email address into the email field in your unsubscribe form, I would enter a unique value into the 'unsubscribe' field of his database record: [replace db=subscribers.db&eqemaildatarq=[email]]unsubscribe=[cart][/replace] .... and then in the same template I would send the visitor an email message with a URL that has that same unique value in it, like this: ************************************ "Someone entered your email address into the UNSUBSCRIBE page on our web site. If that person was you, and if you really want to unsubscribe, just click this link and we will unsubscribe you immediately:" http://domain.com/page.html?out=[cart] "But if you do NOT want to unsubscribe from our list, please just ignore this message, thanks." ************************************ The person who receives this email message may (or may not ) click that link. If he clicks the link, your webdna code simply deletes the only record in the subscribers database that has that unique 'out' value in the unsubscribe field: [delete db=subscribers.db&equnsubscribedatarq=[out]] Simple and efficient, and no images or other non-webdna tricks required. :) Sincerely, Kenneth Grome www.kengrome.com >I'm less trusting than you are. I could have a script up and >running within an hour that creates havoc. A truly proficient >programmer could do it much faster. This for automatic email >deletion from an opt-in list. I don't even want the possibility. >Even now the image problem is being solved by scientists hoping to >beat the reverse Turing test. >Bill > >-----Original Message----- >From: Kenneth Grome >Sent: Wed, 19 Jan 2005 22:21:22 +0800 >To: "WebDNA Talk" >Subject: Re: CAPTCHA system in webDNA > >The bot programmer would have to custom code a bot specifically for >a site that uses this technique, and it's possible but unlikely, >don't you think? > > >>But what about when the bots figure it out and are reprogrammed to >>bypass? Clever, but not secure. >>-Dan >> > > >------------------------------------------------------------- >This message is sent to you because you are subscribed to > the mailing list . >To unsubscribe, E-mail to: >To switch to the DIGEST mode, E-mail to > >Web Archive of this list is at: http://webdna.smithmicro.com/ -- ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
Kenneth Grome
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