#!/bin/sh
# web_serve_check
# called by ~jhs crontab with eg:
#	/usr/home/jhs/public_html/bin/.sh/web_serve_check
# Now also works from internal hosts via proxy.

cd ; cd tmp || exit 1

# Ensure line is up.
/sbin/ping -q -c 1 www1.berklix.org 2> /dev/null	2> /dev/null
#	2> to swallow the error if line is down.

# Echo a blank line 
#	Space in case if line down & redirect fails, report:
#	PING www1.berklix.org (83.236.223.115): 56 data bytes
#	--- www1.berklix.org ping statistics ---
#	1 packets transmitted, 0 packets received, 100% packet loss
echo	

# None of the following block are needed when called live by jhs,
# as inherited from my csh env. 
#	FTP_PASSIVE_MODE=YES
#	FTPSERVER=gate.js.berklix.net
#	ftp_proxy=ftp://gate.js.berklix.net:21
#	FTP_PASSWORD=jhs@berklix._________net
#	FTP_LOGIN=ftp
#	all_proxy=http://gate.js.berklix.net
#	no_proxy=localhost,js.berklix.net
#	export	FTP_PASSIVE_MODE
#	export	FTPSERVER
#	export	ftp_proxy
#	export	FTP_PASSWORD
#	export	FTP_LOGIN
#	export	all_proxy
#	export	no_proxy
# But if a different Bourne shell user calls this direct,
# then the 2 uncommented lines Are needed.
http_proxy=http://gate.js.berklix.net:80
export	http_proxy

servers="www1.berklix.com www2.berklix.org www3.berklix.net"
domains="www.berklix.com www.surfacevision.com bsdpie.com"

# Test a combination of remote hosts & domains.
for i in $servers $domains
	do
	fetch -o web_serve_check.tmp.$i http://$i/~jhs/index.html || \
		echo "$0 failed on host $i" | \
			mail -s "Cron <jhs@`hostname -s`> $0" jhs
		# Keep subjest same as default below to unify filtering in 
		# ~/.procmailrc.system.logs`
		# I''ve seen this mail me when thin httpd died 2006.12.01.
	done
diff3 \
	web_serve_check.tmp.www1.berklix.com  \
	web_serve_check.tmp.www2.berklix.org  \
	web_serve_check.tmp.www3.berklix.net \
	&& echo "web_serve_check successful" \
	|| echo "web_serve_check failed on diff3"
rm -f web_serve_check.tmp.*

# I don't check content of site top pages, as content varies.

# Cron sends me a default mail on success with:
#	Subject: Cron <jhs@fire> /home/jhs/bin/.sh/web_serve_check