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C[omp]ute

Welcome to my blog, which was once a mailing list of the same name and is still generated by mail. Please reply via the "comment" links.

Always interested in offers/projects/new ideas. Eclectic experience in fields like: numerical computing; Python web; Java enterprise; functional languages; GPGPU; SQL databases; etc. Based in Santiago, Chile; telecommute worldwide. CV; email.

Personal Projects

Lepl parser for Python.

Colorless Green.

Photography around Santiago.

SVG experiment.

Professional Portfolio

Calibration of seismometers.

Data access via web services.

Cache rewrite.

Extending OpenSSH.

C-ORM: docs, API.

Last 100 entries

Bicycle Wheels, Inertia, and Energy; Another Tax Fraud; Google's Borg; A Verion That Redirects To Local HTTP Server; Spanish Accents For Idiots; Aluminium Cans; Advice on Spray Painting; Female View of Online Chat From a Male; UX Reading List; S4 Subgroups - Geometric Interpretation; Fucking Email; The SQM Affair For Idiots; Using Kolmogorov Complexity; Oblique Strategies in bash; Curses Tools; Markov Chain Monte Carlo Without all the Bullshit; Email Para Matias Godoy Mercado; The Penta Affair For Idiots; Example Code To Create numpy Array in C; Good Article on Bias in Graphic Design (NYTimes); Do You Backup github?; Data Mining Books; SimpleDateFormat should be synchronized; British Words; Chinese Govt Intercepts External Web To DDOS github; Numbering Permutations; Teenage Engineering - Low Price Synths; GCHQ Can Do Whatever It Wants; Dublinesque; A Cryptographic SAT Solver; Security Challenges; Word Lists for Crosswords; 3D Printing and Speaker Design; Searchable Snowden Archive; XCode Backdoored; Derived Apps Have Malware (CIA); Rowhammer - Hacking Software Via Hardware (DRAM) Bugs; Immutable SQL Database (Kinda); Tor GPS Tracker; That PyCon Dongle Mess...; ASCII Fluid Dynamics; Brandalism; Table of Shifter, Cassette and Derailleur Compatability; Lenovo Demonstrates How Bad HTTPS Is; Telegraph Owned by HSBC; Smaptop - Sunrise (Music); Equation Group (NSA); UK Torture in NI; And - A Natural Extension To Regexps; This Is The Future Of Religion; The Shazam (Music Matching) Algorithm; Tributes To Lesbian Community From AIDS Survivors; Nice Rust Summary; List of Good Fiction Books; Constructing JSON From Postgres (Part 2); Constructing JSON From Postgres (Part 1); Postgres in Docker; Why Poor Places Are More Diverse; Smart Writing on Graceland; Satire in France; Free Speech in France; MTB Cornering - Where Should We Point Our Thrusters?; Secure Secure Shell; Java Generics over Primitives; 2014 (Charlie Brooker); How I am 7; Neural Nets Applied to Go; Programming, Business, Social Contracts; Distributed Systems for Fun and Profit; XML and Scheme; Internet Radio Stations (Curated List); Solid Data About Placebos; Half of Americans Think Climate Change Is a Sign of the Apocalypse; Saturday Surf Sessions With Juvenile Delinquents; Ssh, tty, stdout and stderr; Feathers falling in a vacuum; Santiago 30m Bike Route; Mapa de Ciclovias en Santiago; How Unreliable is UDP?; SE Santiago 20m Bike Route; Cameron's Rap; Configuring libxml with Eclipse; Reducing Combinatorial Complexity With Occam - AI; Sentidos Comunes (Chilean Online Magazine); Hilary Mantel: The Assassination of Margaret Thatcher - August 6th 1983; NSA Interceptng Gmail During Delivery; General IIR Filters; What's happening with Scala?; Interesting (But Largely Illegible) Typeface; Retiring Essentialism; Poorest in UK, Poorest in N Europe; I Want To Be A Redneck!; Reverse Racism; The Lost Art Of Nomography; IBM Data Center (Photo); Interesting Account Of Gamma Hack; The Most Interesting Audiophile In The World; How did the first world war actually end?; Ky - Restaurant Santiago; The Black Dork Lives!; The UN Requires Unaninmous Decisions; LPIR - Steganography in Practice

© 2006-2015 Andrew Cooke (site) / post authors (content).

XML RPC with bash/netcat

From: "andrew cooke" <andrew@...>

Date: Sun, 8 Jan 2006 18:56:25 -0300 (CLST)

I was looking at technorati - http://www.technorati.com/ - and they
support an xml rpc "ping" to signal when a blog is updated.  I wondered
how easy it would be to add such a thing with bash - turns out it's
trivial.  Here's the code (it's not in the download source because I don't
want people pinging with my address and I don't trust people to configure
things, but you can cut + [aste from below)

Andrew

#! /bin/bash

# ping technorati

#set -v

# configuration
ADDRESS="http://www.acooke.org/cute"
NAME="C[omp]UTE"
# (end of configuration)

export PATH="$PATH:$CUTE_DIR/scripts"

tmp=`mktemp`
echo "<?xml version=\"1.0\"?>
<methodCall>
  <methodName>weblogUpdates.ping</methodName>
  <params>
    <param>
      <value>$NAME</value>
    </param>
    <param>
      <value>$ADDRESS</value>
    </param>
  </params>
</methodCall>" > "$tmp"

size=`cat "$tmp" | wc -c`

msg=`mktemp`
echo "POST /rpc/ping HTTP/1.0
User-Agent: bash script across netcat - andrew@...
Host: rpc.technorati.com
Content-Type: text/xml
Content-length: $size
" > "$msg"

cat "$tmp" >> "$msg"
rm "$tmp"
cat "$msg"
cat "$msg" | nc rpc.technorati.com 80
rm "$msg"

And an ATOM feed too...

From: "andrew cooke" <andrew@...>

Date: Sun, 8 Jan 2006 22:48:08 -0300 (CLST)

As you can see (the little orange icon) I've also added a basic ATOM feed.
 It's pretty impressive how simple these things are!

Testing Ping

From: "andrew cooke" <andrew@...>

Date: Sat, 1 Jul 2006 17:00:08 -0400 (CLT)

Hmmm.  Something was broken.  See if this fixes it....

Another Test (Unique IDs)

From: "andrew cooke" <andrew@...>

Date: Sun, 9 Jul 2006 18:11:14 -0400 (CLT)

I wasn't generating unique ID values for replies.  This should now work
(which means Technorati will not ignore them, I hope).

Andrew

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