Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>I've found that asking for the answer to a simple question sent the browser as an image (like "2 + 3 - 4 =", a varient of a 'captcha' but not so annoying), with a wee bit of Javascript does quite well.</p> <p>Send your form with the image and answer field, and a hidden field with a "challenge" (some randomly generated string). When the user submits the form, hash the challenge and the answer, and send the result back to the server. The server can check for a valid answer before adding it to the database for review.</p> <p>It seems like a lot of work up front, but it will save hours of review time. Using jQuery:</p> <pre> &lt;script type="text/javascript"&gt; // Hash function to mask the answer function answerMask() { var a = $('#a').val(); var c = $('#c').val(); var h = hex_md5(hex_md5(a) + c); $('#a').val(h); } &lt;/script&gt; &lt;form onsubmit="answerMask()" action="/cgi-bin/comment.py" method="POST"&gt; &lt;table&gt; &lt;tr&gt;&lt;td>Comment&lt;/td&gt;&lt;td&gt;&lt;input type="text" name="comment" /&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;td&gt;# put image here #&lt;/td>&lt;td>&lt;input id="p" type="text" name="a" size="30" /&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;td&gt;&lt;input id="c" type="hidden" value="ddd8c315d759a74c75421055a16f6c52" name="c" /&gt;&lt;/td&gt;&lt;td&gt;&lt;input type="submit" value=" Go "&gt;&lt;/td&gt;&lt;/tr&gt; &lt;/p&gt; &lt;/form&gt; </pre> <hr/> <p><b>Edit update...</b></p> <p>I saw this technique on a web site, I'm not sure which one, so this idea isn't mine but you might find it useful.</p> <p>Provide a form with a challenge field and a comment field. Prefix the challenge with "Pick the third word from: glark snerm hork morf" so the words, and which one to pick, are easy to generate on the server and easy to validate when the form contents come back.</p> <p>The point is to make the user do <i>something</i>, apply a few brain cells, and more work than it's worth for a script kiddie.</p>
    singulars
    1. This table or related slice is empty.
    1. POManaging Unregistered User Posts by Screening
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USJoel
    1. USJoel
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTDownMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COjQuery isn't the fix for everything. Checks like this one should be made server-side for real security. JavaScript may be disabled in any browser, specially in spam bots, so this wouldn't help much.
      singulars
      1. PO
      1. USSeb
    2. COI'm not surprised this was voted down, and I understand that JQuery isn't always the answer, but it worked easily for me because of my existing web pieces already loaded into the browser for other uses. I have another answer that might be better...
      singulars
      1. PO
      1. USJoel
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload