Yann Kerhervé's blog

Spammers now use image distortion technics, too

I guess they plan on reusing the opensource technology to defeat this kind of spam to solve CAPTCHA, once it exists?

 
 

Apple iMac TouchScreen

I paid a visit to The California Academy of Science yesterday, and I was mesmerized by the fact that they got Touch Sensitive iMacs.

The irony is that even though it's Apple hardware, which sure looks nice in the building, it appears to run Windows. At least some of them do: I was looking at their photo store booth, which was running DarkRoom software, maybe it is virtualized -- I'm not sure.

Anyway, I'm pretty sure I wouldn't have missed this hardware announcement from Apple if it was truly an Apple product, I surely did notice the rumor saying that such product was coming out this year. My best guess so far is that it is in fact a Troll Touch addon maybe a slipcover?

My take on installing gerrit (git code review tool) on ubuntu

I've used one main resource, but comments are closed, so I've decided to throw random remarks in this post, for myself and for you dear googler.

The reference is here:

http://gregmeiste.com/2009/06/gerrit-code-review-installation/

It looks much better than the official documentation, at least if like my you don't usually touch java stuff.

• I used ubuntu 9.04 (xen)
• apt-get install mysql-server mysql-client postfix
• I've started installing java packages (sun-java6 sun-java6-jre libcommons-configuration-java libservlet2.4-java un-java6-javadb) not sure all are usefull though
• Step 4: I didn't use phpmysql to create gerrit2 user but:
  'GRANT ALL PRIVILEGES ON 'gerrit2'.* TO 'gerrit2'@'localhost' WITH GRANT OPTIONS; FLUSH PRIVILEGES;'
• Step 9: when you are done editing GerritServer.properties you should move it to /home/gerrit2/cfg and chown it to gerrit2 user.
• Step 11: though jetty7 should work (using the distribution package?) I went for the latest 6 version.
• Step 12: I'm not sure about this 'plus' directory. I've done what she said, but l've also put stuff into 'jetty/lib/ext/' 
• Also, in addition to the two packages to add, I've also moved the stuff I've apt-getted previously:
  
  •  cp /usr/share/java/commons-pool-1.4.jar jetty/lib/ext/ 
  •  cp /usr/share/java/commons-dbcp-1.2.1.jar jetty/lib/ext/
• Step 13: The documentation says:
   java -jar gerrit-*.war --cat extra/jetty_gerrit.xml >gerrit.xml
  But with my version it was more 'extra/jetty6/gerrit.xml' find out for yours using 'java -jar gerrit*war -ls'
• Step 15: I installed jetty on 0.0.0.0:8081 instead of 127.0.0.1:8081

Tada! I had gerrit UI at the address above.

I registered the first user with openid.

Then it turns out I had to add an admin group, the SQL from the official guide wasn't working, so I did this:

 insert into account_group_members (account_id, group_id) values (1, 1);

After having verified that my id was 1 and the admin group id was 1 too.

I declared my email address, which I confirmed.

I declared my ssh public key.

I declared my ssh username.

I restarted gerrit.

I confirmed that my ssh key was taken into account by: 

ssh -p 29418 yann@codereview.local # should say: 'no shell something'

ssh -p 29418 yann@codereview.local gerrit ls-projects

Then I created my first project:

ssh -p 29418 gerrit@codereview.local gerrit create-project --name findlib

Then I had to give my group (Administrators) the right to push into this new project (using the UI)

 
Then I pushed my 'my-review' branch, should be something like:

git push ssh://yann@codereview.local:29418/findlib my-review

Then I worked.

Then I committed the work.

Then I used the magical refs to create a review:

git push ssh://yann@codereview.local:29418/findlib HEAD:refs/for/my-review

That's all, I hope this helps, comments are wide open for addendum to the above, but don't ask for help since it's merely chance that I went through all these steps without killing myself, so the mailing list would be a better place to ask.

The calculator-keypad-usbhub device

In the category "most ridiculous toy ever" I've found this in an empty office at Six Apart.

via www.flickr.com

• What the sticker says: "Notebook keypad calculator with USB HUB"
• You have a "mode" button switching from calc or keypad modes
• In calc mode, you can press "send" to send the result to your computer
• You cannot use it as a portable light or bottle opener though :/

I seriously fail to see the real marketing reason for bundling these features together. Ideas anyone?

Posting to blog and Twitter from my phone

Improved bash prompt for git usage

I've found some interesting gists on github. There are many flavor of a bash prompt showing which branch you're on, and if you have uncommited changes.

I've forked mine here it is:

http://gist.github.com/52483





I'm not sure I'll keep it though, since I'm using it on my virtualbox (with shared folders) and it makes the prompt rather slow. Anyway it's kind of cool, I also have it natively on my mac and I don't have any speed issue.

documenting the bugs I'm finding [updated x3]

I've started to work on semi work-related projects - i.e. it uses Six Apart technology stack, and I code mostly during the night but also I use my hackathon time to do stuff.

I thought I'd document all the quircks I've found in my way. First it will allow me to remember all this stuff, and second I think it's me being a good internet citizen (someone will find this page someday using google, and might get helped this way).

It might not be that interesting other than for this documentation purpose though.

I intstalled virtual box and ubuntu on my mac, and found two issues with vboxsf (shared folders for ubuntu):

• http://www.virtualbox.org/ticket/2921
• http://www.virtualbox.org/ticket/2951

the first one is a problem with linux's sendfile and the second is auto-completion (probably related to vboxsf)

I'm adding pure Perl support for servers in Authen::SASL module, and then hooking that into DJabberd. Doing so, I noticed (thanks hachi for the long debugging session, not related to Danga::Socket/DJabberd at all!), than Psi is not sending the xml (stream start after a successful SASL negotiation) that is shown in its own xml-console!

That last thing made me switched to Adium. And there I noticed a weird issue in the challenge parsing of DIGEST_MD5. I noticed extra quote (") in the realm and digest_uri. I temporarily fixed by changing the order of my tokens inside of the challenge and it fixed the issue... but I have to investigate more, it looks like a libpurple bug.

Lots of TODO and TOFIX!

update:

I've tried with iChat, and it comes with its own set of issues:

Jan  7 17:27:54 yann iChatAgent[56325]: [SASL] Level 5: DIGEST-MD5 unrecognized pair cipher-opts/rc4, 3des, des, rc4-56, rc4-40: ignoring
Jan  7 17:27:54 yann iChatAgent[56325]: [SASL] Level 5: DIGEST-MD5 unrecognized pair qop-options/auth, auth-inf, auth-conf: ignoring

multiple pair doesn't work either:

Jan  7 21:09:56 yann iChatAgent[56325]: [SASL] Level 5: DIGEST-MD5 unrecognized pair qop-options/auth-conf: ignoring
Jan  7 21:09:56 yann iChatAgent[56325]: [SASL] Level 5: DIGEST-MD5 unrecognized pair qop-options/auth-inf: ignoring
Jan  7 21:09:56 yann iChatAgent[56325]: [SASL] Level 5: DIGEST-MD5 unrecognized pair qop-options/auth: ignoring

damnit! I know that DIGEST-MD5 is not the most useful mechanism for me, but still...

I'm going to check if this is me that doesn't interpret the RFC 2831 correctly though.

update

Alright, rechecking the RFC/my code it looks like it's not "qop-options" but "qop" and "cipher" and not "cipher-opts". iChat is fine, psi for some reason is behaving weirdly (not sending data to the socket, this is mysterious), Adium has probably issues with challenge parsing (when the challenge includes unsupported token?)

Long time no talk

It's because I'm actually very busy at work, and because, I mainly blog on vox...

And this post is acutally just a test for my current project @work ;)

JotSpot wiki

I've played for 10minutes with jotspot free wiki (sorry I wasn't able to find the “public permission” it looks like you cannot share with unregistered users). It looks nice, some features look really interesting like: form versionning. Some look scarry, like editing admin pages (I had a javascript in a textarea, ready to be changed !)

A lot of AJAX goodness, but It feels a tad slow --  perhaps it's the recent buzz generated by Jawodny and techcrunch ?

Anyhow, don't miss SocialText which is very nice.

ajax, internet, jot, jotspot, wiki

Gandi recrute un “Jedi” en Perl

Je ne suis pas sûr de la définition exacte du mot “Jedi” dans ce contexte, mais l'information peut être utile à certains!

L'offre en question.

Question du jour: Utilisez vous la Force quand vous codez ?

paris, Perl