DZone Snippets: curl code

Update DynDNS hostname

jakob () — Mon, 05 May 2008 19:45:30 GMT

See DynDNS Update Specifications .



curl -v -k -u jakobm "https://members.dyndns.org/nic/update?hostname=jakobm.dyndns.org&myip=217.80.116.128&wildcard=NOCHG&mx=NOCHG&backmx=NOCHG"

Finding your WAN IP address

jrobertson (James Robertson) — Fri, 11 Apr 2008 09:14:36 GMT

My server sits behind a NAT router, so finding out my public IP address is a non-trivial task. I can use curl to poll checkip.dyndns.org for my current address:



curl -s checkip.dyndns.org

The current IP check returns the information in this format: Current IP CheckCurrent IP Address: 216.239.39.99

Using cut, I can extract just the information that I need:



curl -s checkip.dyndns.org|cut -d ":" -f2|cut -d "<" -f1

That produces something a bit more readable: 216.239.39.99

-------------------------
This article snippet was copied from My sysadmin toolbox [linux.com] while I was googling for 'apt-cache search dyndns'.

Twitter and Jaiku from the command line

jrobertson (James Robertson) — Fri, 21 Mar 2008 18:28:00 GMT

The following instructions make it easy to post to Twitter and Jaiku from the command line. The instructions were copied from the article "Ubuntu Unleashed: Howto Twitter From the Command Line in Ubuntu!" [ubuntu-unleashed.com] and modified to post via Rorbuilder's ProjectX API.

sudo apt-get install curl
sudo gedit /usr/bin/jaitwit
Now Paste this in gEdit and simply replace "YourUsername" with your username and "YourPassword" with your twitter passwd, then replace the Jaiku variables (YourUsername, YourPassword, YourCity, YourAccessKey) and ctrl-s to save, then alt-F4 to exit!



curl http://rorbuilder.info/api/projectx.cgi?xml_project=%3Cproject%20name=%22micro_blog%22%3E%3Cmethods%3E%3Cmethod%20name=%22post2jaiku%22%3E%3Cparams%3E%3Cparam%20var=%22user%22%20val=%22YourUsername%22/%3E%3Cparam%20var=%22msg%22%20val=%22`echo $@|tr ' ' '+'`%22/%3E%3Cparam%20var=%22location%22%20val=%22YourCity%22/%3E%3Cparam%20var=%22apikey%22%20val=%22YourAccessKey%22/%3E%3C/params%3E%3C/method%3E%3Cmethod%20name=%22post2twitter%22%3E%3Cparams%3E%3Cparam%20var=%22user%22%20val=%22YourUsername%22/%3E%3Cparam%20var=%22msg%22%20val=%22`echo $@|tr ' ' '+'`%22/%3E%3Cparam%20var=%22password%22%20val=%22YourPassword%22/%3E%3C/params%3E%3C/method%3E%3C/methods%3E%3C/project%3E -o /dev/null

echo Message Sent!

Then chmod for exec privileges:
chmod +x /usr/bin/jaitwit
Then from the CLI type jaitwit followed by your message.
jaitwit "message here without the quotes"

FTPS upload a file from Ruby using Curl command line

timmorgan (Tim Morgan) — Tue, 20 Nov 2007 15:46:06 GMT

Yes, this is lame, but I didn't have much luck with Ruby libraries, so this is what I came up with.



`curl -k --ftp-ssl -3 -T#{path} -u#{FTP_USER}:#{FTP_PASS} #{FTP_HOST}`

-k forces the connection even if the cert looks bad
-3 turns on SSLv3
-T file to upload
-u user:password

Test Trackback using cURL

jnewland (Jesse Newland) — Fri, 14 Sep 2007 01:31:16 GMT

I've Googled this about 20 times - documenting it here for convenience.



curl -d url=TRACKBACK_URL -d title=TRACKBACK_TITLE -d blog_name=TRACKBACK_BLOG_NAME -d excerpt=TRACKBACK_EXCERPT URL

A correct response:

Twitter bot weatherlisbon

griflet (guillaume riflet) — Mon, 18 Jun 2007 21:37:40 GMT

This little bash script shows how to use curl, grep, tail, sed and perl one-liners in order to compose a bleeding-edge twitter bot.
This one returns daily weather forecasts for Lisbon city based on the BBC weather forecast rss feed.



#! /bin/sh



#Goto here

here=/home/guillaume/Personal

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}"



#Weather twitter bot

twitbot=weatherlisbon:*******



#Timestamp the log file

echo .>> $file.log

date >> $file.log



#Read the RSS feed and filter it

curl $feed | grep 'title' | tail -n 1 | perl -wlne'm/title>(.*)<\/title/i && print $1' | sed -e "s/°//g" > $file.txt



#Read the forecast into a weather variable

read weather < $file.txt



#Twit the weather variable away

curl --basic --user $twitbot --data status="$weather" http://twitter.com/statuses/update.xml >> $file.log

cURL Download

damonp (Damon Parker) — Fri, 27 Apr 2007 04:22:57 GMT

// function to dowload a $remote file and store as $local file, using curl



function curl_download($remote, $local)	{

	$cp = curl_init($remote);

	$fp = fopen($local, "w");

	

	curl_setopt($cp, CURLOPT_FILE, $fp);

	curl_setopt($cp, CURLOPT_HEADER, 0);

	

	curl_exec($cp);

	curl_close($cp);

	fclose($fp);	



}

REST curl helper

bassnode (Ed) — Wed, 14 Feb 2007 03:39:48 GMT

// A small bash script that wraps around curl to help more easily test RESTful sites.



#!/bin/bash

AUTH="user:password"

BASE="http://localhost:3000"

METHOD=$1

DEST="$BASE$2"

XML=$3



# make sure args were passed

if [ $# -eq 0 ]; then

        echo "usage: ./`basename $0` HTTP-METHOD DESTINATION_URI [XML]"

        echo "example: ./`basename $0` POST "/accounts" \"eded@ed.com\""

        exit 1

fi



# execute CURL call

curl -H 'Accept: application/xml' -H 'Content-Type: application/xml' -w '\nHTTP STATUS: %{http_code}\nTIME: %{time_total}\n' \

-X $METHOD \

-d "$XML" \

-u "$AUTH" \

"$DEST"



exit 0

Building curb under Mac OS X

willcodeforfoo () — Sat, 06 Jan 2007 00:44:55 GMT

Had a bit of a problem getting curb to work in OS X, but if you have the curl port installed, its easy:

sudo port install curl

cd src

curl -O http://rubyforge.iasi.roedu.net/files/curb/curb-0.1.0.tar.gz

tar -zxvf curb-0.1.0.tar.gz

cd curb-0.1.0.tar.gz

ruby extconf.rb --with-curl-lib=/opt/local/lib/ --with-curl-include=/opt/local/include/

ruby tests/alltests.rb

sudo make install

Python - simplePing

whitetiger () — Sat, 25 Nov 2006 19:27:42 GMT

// Verifica se un Server e' su o giu'



import pycurl



def nullFunc(args):

	pass



try:



	curl = pycurl.Curl()

	curl.setopt(pycurl.WRITEFUNCTION, nullFunc)

	curl.setopt(pycurl.URL, 'http://www.google.it')

	curl.perform()



	print "Server SU"



except Exception, error:



	print "Server GIU'"