Script to check Connectivity from a File containing several URLs for Rest Services

checkConnectivity.sh

#! /bin/bash
#
# @author: jorge.vila@gmail.com
# 2013


if [ $# -ne 1 ]
  then
    echo "Usage: checkGWConnectivity.sh [FILE]"
fi

FILE=$1
TIMEOUT=5

#
# Parses URL
# @return proto
# @return user
# @return pass
# @return host
# @return port
# @return path
#
function parse_url {

  # extract the protocol
	proto="`echo $1 | grep '://' | sed -e's,^\(.*://\).*,\1,g'`"
	# remove the protocol
	url=`echo $1 | sed -e s,$proto,,g`

	# extract the user and password (if any)
	userpass="`echo $url | grep @ | cut -d@ -f1`"
	pass=`echo $userpass | grep : | cut -d: -f2`
	if [ -n "$pass" ]; then
	    user=`echo $userpass | grep : | cut -d: -f1`
	else
	    user=$userpass
	fi


	#Default Port Value
	port=80
	if [ "https" == $proto ]
		then
		port=443
	fi

	# extract the host -- updated
	hostport=`echo $url | sed -e s,$userpass@,,g | cut -d/ -f1`
	port=`echo $hostport | grep : | cut -d: -f2`

	if [ -n "$port" ]; then
	    host=`echo $hostport | grep : | cut -d: -f1`
	else
	    host=$hostport
		
		#Default Port Value
		port=80
		if [ "https" == $proto ]
			then
			port=443
		fi  
	fi

	# extract the path (if any)
	path="`echo $url | grep / | cut -d/ -f2-`"
}

#
# Test URL for all HTTP METHODS
#
function check_url {
	
	for HTTP_METHOD in GET POST PUT DELETE HEAD
	do
		if curl --silent --head --connect-timeout $TIMEOUT -X $HTTP_METHOD $1  | egrep "HTTP/1.[0-1]" >/dev/null
		then
			echo "$HTTP_METHOD $1 OK"
		else
			echo "$HTTP_METHOD $1 ERROR"
		fi
	done
}

# GET URLs from PATH
TMP=$(mktemp)
grep http $FILE | sed 's/\\//g' > $TMP

while read URL_TO_TEST
do
	echo "#--------------------"
	echo $URL_TO_TEST
	parse_url $URL_TO_TEST
	nc -w $TIMEOUT -z $host $port && { echo "$host $port up" && check_url $URL_TO_TEST; } || { echo "$host $port ERROR" >&2; }

done < $TMP
rm $TMP


#((ping -w5 -c3 8.8.8.8 || ping -w5 -c3 4.2.2.1) > /dev/null 2>&1) && echo "up" || (echo "down" && exit 1)