Guillaume: 1 revision

2008-12-03T10:39:08Z

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192.168.20.177: /* Using twitter with curl */

2008-05-26T14:19:19Z

‎Using twitter with curl

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[http://www.twitter.com Twitter] is a social short messaging system from the web to the outside world.
It can be used to send messages to friends. A practical utility is to have a bot-twitter-user that broadcasts messages from scheduled scripts. It could confirm the status of an ongoing process or job with an sms.

==Using twitter with [[curl]]==

curl -u mohid1:***** -d status="Having fun with curl" http://twitter.com/statuses/update.xml

==Mohid Twitter project==
Make sure you have accessible from your system path the following GNU utilities:
# tee
# grep
# tail
# curl
Save this code as a batchfile:

REM MohidTwitter.bat
REM Usage syntax:
REM > MohidWater.exe | tee Run1.log
REM > Call MohidTwitter.bat Run1.log
@echo off

REM Please edit the username and password value
set username=MyUsername
set password=MyPass

type %1 | grep MOHID | grep "[^-]$" | tail -n 1 > _tmp.txt
set /P mess=<_tmp.txt
echo %mess%
curl -u %username%:%password% -d status="%mess%" "http://twitter.com/statuses/update.xml"
del _tmp.txt

@echo on

==Bot agents==
*[http://www.twitter.com/mohid1 mohid1]: Pre-op model;
*[http://www.twitter.com/weatherlisbon weatherlisbon]: BBC lisbon weather forecast;
*[http://www.twitter.com/marvin_bot marvin_bot]: Marvin, the paranoid android;
*[http://www.twitter.com/euromillions euromillions]: Every friday night you get the euromillions results;
*[http://www.twitter.com/weatherhannover weatherhannover]: BBC hannover weather forecast;
*[http://www.twitter.com/biosfera Biosfera]: Meteo-IST;

==Maretec agents==
*[http://www.twitter.com/guillaume7 Guillaume R.]
*[http://www.twitter.com/bartb_pt Bartolomeu B.]

<rss>http://twitter.com/statuses/user_timeline/6626342.rss</rss>

==Twitter bot script==
===bash example===
Here's a sample bash script that uses curl to extract a weather forecast from an rss feed and twit it:

<code>[bash,Y]
#! /bin/sh

#This line is important if you are to put this script as a cronjob
#Goto the folder where the bash script exists.
here=/home/[user]/scripts
cd $here

#BBC Lisbon weather id
id=0048

#BBC weather RSS feed address
feed="http://feeds.bbc.co.uk/weather/feeds/rss/5day/world/${id}.xml"

#City
city=lisbon

#temporary file
file="weather${city}.txt"

#Weather twitter bot
twitbot=weatherlisbon:w*****r

#Read the RSS feed and filter it
curl $feed 2>&1 | grep 'title' | tail -n 1 | perl -wlne'm/title>(.*)<\/title/i && print $1' |
sed -e "s/\&\#xB0;//g" > $file
# use this line instead, to filter out the Fahrenheit degrees, as well as the leading "the forecast for"
#sed -e "s/\&\#xB0;//g" | sed -e "s/ [$][0-9]*F[$]//g" | sed -e "s/[[:space:]]\+/ /g" | cut -d ' ' -f4-21 > $file

#Read the forecast into a weather variable
read weather < $file

#Twit the weather variable away
curl --basic --user $twitbot --data status="$weather" http://twitter.com/statuses/update.xml
</code>

===Batch example===
Here's the [http://twitter.com/marvin_bot marvin_bot] agent script in batch. However, previously, you are required to have [http://cygwin.com/ cygwin] installed and the <code>%CYGWIN%\bin</code> path added to your <code>%PATH%</code> environment variable.

@ECHO off
REM MARVIN BOT script

REM Goto here
set here="D:\Users\Guillaume\guillaume\biscates\bots"
cd %here%

REM Marvin feed address
set feed="marvinquotes_srtd.txt"

REM temporary file
set file="marvin_bot"

REM Marvin twitter bot
set user=marvin_bot
set pass=****

REM Read the feed and randomize it
cat %feed% | shuf | head -n 1 > %file%.txt

REM Read the message into a weather variable
set /P mess=<%file%.txt
echo %mess% >> %file%.log

REM Timestamp the log file
echo -------------------------------------------->> %file%.log
echo %DATE% %TIME% >> %file%.log

REM Twit the weather variable away
wget --http-user=%user% --http-pass=%pass% --post-data="status=%mess%" -O %file%.log http:// twitter.com/statuses/update.xml
@ECHO on

===Check if message is new===
This code in bash or batch checks for new messages to be twittered.

====bash====
touch "mess.log"
if [ `diff mess.tmp mess.log | grep -e "^<" | wc -l` -eq 1 ]
then

#Uncomment one the following couple of lines
#cat mess.tmp >> mess.log #keeps historical record of all messages
#cat mess.tmp > mess.log #keeps only last message

#...

fi

====batch====
NOTE: you need to find windows Xp [http://unxutils.sourceforge.net/ binaries] of grep, diff, sed, (g)awk, tail, head, cat, tac, sort and install them in your PATH.
touch "mess.old"
diff mess.tmp mess.old | grep -e "^<" | wc -l > diff.tmp
set /P diff=<diff.tmp
if %diff% neq 1 goto end
goto mess

:mess
REM >> keeps historical record
REM > keeps last mess
REM Uncomment one the following couple of lines
REM type mess.tmp>>mess.old
REM type mess.tmp>mess.old

:end

===Sample food===
> cat Novembro_SAASUTL.htm | \
perl -ne 'm/>([^<>]*?)<\// && print$1."\n"' | \
sed -f sasutl.sed -e '/^$/d' | \
awk '/29-11-2007/,/30-11-2007/'

#Get http://www.sas.utl.pt/alim/Ementas/View/View.aspx to \\guillaume\temp
#Transfer via winscp to point.pt -p 2996

Status update
#

==External References==
*[http://www.twitter.com Twitter home]
*[http://groups.google.com/group/twitter-development-talk/web/api-documentation Twitter api]
*[http://unxutils.sourceforge.net/ GNU for windows].

[[Category:Technology]]

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