squid & pac for HTTPS proxy

# cat /etc/squid/squid.conf

shutdown_lifetime 1 second
auth_param basic program /lib/squid/basic_ncsa_auth /etc/squid/.htpasswd

acl SSL_ports port 443
acl Safe_ports port 80		# http
acl Safe_ports port 21		# ftp
acl Safe_ports port 443		# https
acl Safe_ports port 70		# gopher
acl Safe_ports port 210		# wais
acl Safe_ports port 1025-65535	# unregistered ports
acl Safe_ports port 280		# http-mgmt
acl Safe_ports port 488		# gss-http
acl Safe_ports port 591		# filemaker
acl Safe_ports port 777		# multiling http
acl CONNECT method CONNECT

http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost
http_access deny all

https_port 3443 cert=/etc/squid/squid.example.com.pem key=/etc/squid/squid.example.com.key.pem version=4

host_verify_strict on

debug_options ALL,1 82,9 46 #33,2 28,9

coredump_dir /var/spool/squid

refresh_pattern ^ftp:		1440	20%	10080
refresh_pattern ^gopher:	1440	0%	1440
refresh_pattern -i (/cgi-bin/|\?) 0	0%	0
refresh_pattern (Release|Packages(.gz)*)$      0       20%     2880
refresh_pattern .		0	20%	4320

# cat /etc/apache2/sites-available/pac.conf 
<VirtualHost pac.example.com*:80>	
	ServerName pac.example.com
	DocumentRoot /var/www/html

	ErrorLog ${APACHE_LOG_DIR}/error.log
	CustomLog ${APACHE_LOG_DIR}/access.log combined

	KeepAlive On

	<Directory "/var/www/html">
	  Options -Indexes
	</Directory>

</VirtualHost>

# cat /var/www/html/proxy.pac 
function FindProxyForURL(url, host) {

	if (shExpMatch(host, "*.example.com"))
		return "HTTPS squid.example.com:3443;"
	else
		return "DIRECT";

}