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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I responded on the ticket as well, but here’s my take:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">An error like this should absolutely be caught before it raises a database error. A useful, human-friendly error message should be returned via the API. Any
uncaught exception is a bug. On the other side of the equation, anything using the API (such as Horizon) should do its best to pre-validate the input, but if invalid input *<b>is</b>* sent it should be handled well. The best way to let Horizon devs know what
the problem is is for the API to return an intelligent failure.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">All the best,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Gabriel<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Dirk Müller [mailto:dirk@dmllr.de]
<br>
<b>Sent:</b> Sunday, July 14, 2013 5:20 PM<br>
<b>To:</b> OpenStack Development Mailing List<br>
<b>Subject:</b> Re: [openstack-dev] [Nova][Horizon] Is there precedent for validating user input on data types to APIs?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p>Hi Matt,<o:p></o:p></p>
<p>Given that the Nova API is public, this needs to be validated in the API, otherwise the security guys are unhappy.<o:p></o:p></p>
<p>Of course the API shouldn't get bad data in the first place. That's a bug in nova client. I have sent reviews for both code fixes but I've not seen any serious reaction or approval on those for two weeks. Eventually somebody is going to look at it, I guess.<o:p></o:p></p>
<p>Greetings,<br>
Dirk<o:p></o:p></p>
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