isaac in office

I suppose this is the real reason Isaac cleaned the office - he has set up his computer and is now 'working' with me.

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Old work swag

Isaac bumped into that while cleaning my office.  Fun fun.

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Bad picture

Can you tell what Samuel is doing?

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Awesome costumes

Lots of great costumes!

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Company lunch - bye Ken

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Thor RockSim (Crikey)

Reminding Greg what BSD Thor looks like.  Rocket name is Crikey.

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rocket repairs and thor

I am a huge fan of the kits from Semroc and my Explorer and Arcas have been flying for a couple years.  My most recent flight on the Arcas used an F42T and 2 of the fins were ripped off.  I was never real happy with my fin alignment on the Arcas so I took the opportunity to remove all the fins and reseat them.  The fins are all in place and this time I used a bit more epoxy and fiberglass filler.  The Arcas is in serious need of a paint job but I think that these fins will be solid!

The Explorer had a cracked fillet.  The crack survived a few flights on E motors but I wouldn't be confident putting an F in it as it was.  I ground out the old fillet, sanded, and then put in a few fillet.  I love this rocket and have flown it at many parks and both NCR launch sites.  I plan to fly it at the Nov NCR launch (if my Shanelle lets me go).

I'm finally making progress on the Thor.  Curtis has been making a lot of noise and I'm even thinking he really is going to get the airframe to me.  I used JB Weld to attach the fins to the motor mount tube and am now in the process of putting in large JB Weld fillets.  Sometime in the near future, Warren M is going to help me do tip to tip fiberglassing on the fins and then when the airframe arrives it will pretty much just slip on.

See and download the full gallery on posterous

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Snowing a bit in Boulder

That's not keeping Zoe from checking for rabbits during break-time.  She's found a couple this week but, fortunately for me, hasn't caught any.

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App Engine Redirects - some good some bad

I'm working on authn and authz for my app that uses App Engine. I was hoping to force HTTPS and make it so DELETE was only available App Engine administrator (i.e. me and others on the project). The force of HTTPS is obviously done in config and I would prefer the DELETE authz info in config as well because it would save a lot of coding.

 <security-constraint>
  <web-resource-collection>
   <web-resource-name>default</web-resource-name>
   <url-pattern>/*</url-pattern>
  </web-resource-collection>
  <user-data-constraint>
   <transport-guarantee>CONFIDENTIAL</transport-guarantee>
  </user-data-constraint>
 </security-constraint>
 <security-constraint>
  <web-resource-collection>
   <web-resource-name>admin</web-resource-name>
   <url-pattern>/buckets/200908/bucket/*</url-pattern>
   <http-method>DELETE</http-method>
  </web-resource-collection>
  <auth-constraint>
   <role-name>admin</role-name>
  </auth-constraint>
 </security-constraint>

After setting that in my web.xml file and deploying, I was able to immediately curl and browse and verify that http redirects to https.

$ curl -i -X GET http://mrtidy.appspot.com/buckets/200908/bucket/
HTTP/1.1 302 Found
Location: https://mrtidy.appspot.com/buckets/200908/bucket/
Date: Mon, 05 Oct 2009 02:14:42 GMT
Content-Type: text/html
Server: Google Frontend
Content-Length: 0
X-XSS-Protection: 0

Super duper.

$ curl -i -X DELETE https://mrtidy.appspot.com/buckets/200908/bucket/1
HTTP/1.1 302 Found
Location: https://www.google.com/accounts/ServiceLogin?service=ah&continue=https://mrtidy.appspot.com/_ah/login%3Fcontinue%3Dhttps://mrtidy.appspot.com/buckets/200908/bucket/1<mpl=gm&ahname=...2
Date: Mon, 05 Oct 2009 02:22:26 GMT
Content-Type: text/html
Server: Google Frontend
Content-Length: 0
X-XSS-Protection: 0

I was hoping for a 403 there. I guess it isn't bad but I don't like it that an auth failure gives a 302 status rather than 403. Thinking about now whether I want to stick with this convenience or move the authz for DELETE to code and return my 403 status.

Beautiful in Broomfield!

Terrible weather at the launch site this morning but it is great in Broomfield.  I think Zoe is pleased at having to ditch the launch early and come home to play.

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Waver closed NCR 20091004

Bad weather again this morning so the waver was closed and we've taken down the pads.  Vendors are gone too.

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