Added incomplete setup script

1 files changed, 220 insertions, 0 deletions

diff --git a/setup.sh b/setup.sh
new file mode 100644
index 0000000..9aea869
--- /dev/null
+++ b/setup.sh
@@ -0,0 +1,220 @@
+#!/bin/sh
+
+# MANUALLY move cork.rc to specified location, and create HOME directory
+
+# Original Author: edolg.net
+
+domain='example.com'
+
+webdir='/var/www'
+
+
+# check whether the drive that holds a given directory is marked as "nodev"
+# directories marked as "nodev" cannot contain special devices (e.g. /dev/null)
+is_nodev() {
+	dir="$1"
+
+	# fstab dir that contains (or is) $dir
+	mntp=$(mountp $dir)
+
+	if grep "[[:space:]]$mntp[[:space:]]" </etc/fstab | grep -E '(,|[[:space:]])nodev(,|[[:space:]])' >/dev/null
+	then
+		return 0
+	fi
+
+	return 1
+}
+
+# find the innermost mount point which contains the given directory from /etc/fstab entries
+mountp() {
+	dir="$1"
+
+	mntps=$(awk '{ print $2 }' </etc/fstab)
+	while :
+	do
+		echo "$mntps" | grep "^$dir$" >/dev/null
+		test $? -eq 0 && break
+		test $dir = '/' && return 1	# avoid infinite loop
+		dir=$(dirname $dir)
+	done
+
+	echo $dir
+}
+
+lncp() {
+	last=$(eval echo $"$#")
+	rest=$(for arg in $(seq 1 $(($# - 1))); do eval echo $"$arg"; done)
+	for f in $rest
+	do
+		ln "$f" "$last" 2>/dev/null || cp "$f" "$last"
+	done
+}
+
+lsso() {
+	ldd "$@" | awk '{ print $7 }' | grep '^/.*\.so' | sort | uniq
+}
+
+preinst() {
+	if [ $(uname) != "OpenBSD" ]
+	then
+		echo "$0: operating system is not OpenBSD" >&2
+		return 1
+	fi
+
+	if [ $(whoami) != "root" ]
+	then
+		echo "$0: root user required" >&2
+		return 1
+	fi
+
+	# check webdir's value
+	echo "$webdir" | grep -E '^(/[^[:cntrl:]]+)+$' >/dev/null
+	if [ $? -eq 1 ]
+	then
+		echo "$0: invalid chroot directory" >&2
+		return 1
+	fi
+}
+
+httpdconf() {
+	# backup current httpd.conf
+	if [ -r /etc/httpd.conf ]
+	then
+		cp /etc/httpd.conf /etc/httpd.conf.bk
+		echo "$0: /etc/httpd.conf exists, backed up to /etc/httpd.conf.bk" >&2
+	fi
+
+	echo "$httpdconffile" >/etc/httpd.conf
+}
+
+fstabconf() {
+	if is_nodev $webdir
+	then
+		cp /etc/fstab /etc/fstab.bk
+
+		# remove "nodev" from $webdir in /etc/fstab to make /dev/null
+		# this requires a reboot to be effective
+		mntp=$(mountp $webdir)
+		oldline=$(grep "[[:space:]]$mntp[[:space:]]" /etc/fstab)
+		newline=$(echo "$oldline" | sed 's/nodev//;s/,,/,/')
+		oldfile=$(cat /etc/fstab)
+		echo "$oldfile" | sed "s!$oldline!$newline!" >/etc/fstab
+		echo "$0: /etc/fstab changed, reboot required to apply"
+	fi
+}
+
+# make the plan 9 environment in the new root
+mk9env() {
+	# install plan9port in $webdir
+	pkg_add git || return 1
+	git clone https://github.com/9fans/plan9port $webdir$p9pdir || return 1
+	( cd $webdir$p9pdir ; ./INSTALL -r $p9pdir ) || return 1
+
+	# lncp libraries required by plan9port into the chroot environment
+	libs=$(lsso $(find $webdir$p9pdir -type f) 2>/dev/null)
+	for l in $libs
+	do
+		d=$(dirname $l)
+		mkdir -p $webdir/$d
+		lncp $l $webdir/$d
+	done
+
+	# all programs need to be in $webdir/bin and some are missing
+	rm -Rf $webdir/bin
+	mv $webdir$p9pdir/bin $webdir/bin
+	lncp /bin/{pwd,mv} $webdir/bin
+
+	# create devices
+	mkdir $webdir/dev
+	( cd $webdir/dev ; /dev/MAKEDEV std )
+
+}
+
+services() {
+	rcctl enable slowcgi httpd
+}
+
+
+all() {
+	if ! preinst
+	then
+		echo "$0: could not complete pre-installation checks" >&2
+		exit 1
+	fi
+
+	if ! httpdconf
+	then
+		echo "$0: could not configure httpd" >&2
+		exit 1
+	fi
+
+	if ! fstabconf
+	then
+		echo "$0: could not configure /etc/fstab" >&2
+		exit 1
+	fi
+
+	if ! inst
+	then
+		echo "$0: could not install cork" >&2
+		exit 1
+	fi
+
+	if ! mk9env
+	then
+		echo "$0: could not add files and directories to $webdir" >&2
+		exit 1
+	fi
+
+	if ! services
+	then
+		echo "$0: could not enable required services" >&2
+		exit 1
+	fi
+
+	echo
+	echo "$0: setup completed!"
+	echo "$0: you may need to reboot (see prior messages); otherwise, you can start httpd and slowcgi"
+}
+
+domain=${domain:-"example.com"}
+webdir=${webdir:-"/var/www"}
+
+# other useful variables
+p9pdir='/plan9'	# after chroot, full is $webdir$p9pdir
+siteroot="$webdir/sites/$domain"
+httpdconffile='server "'$domain'" {
+
+	# see httpd.conf(5) to enable ssl/tls
+        listen on * port 80
+        connection request timeout 4
+        location "/img/*" {
+                root "/sites/'$domain'"
+        }
+        location found "/*" {
+                root "/sites/'$domain'/home"
+        }
+        location not found "/*" {
+                root "/"
+                fastcgi {
+                        param PATH "/bin"
+                        param PLAN9 "/usr/local/plan9"
+                        param SCRIPT_FILENAME "/sites/'$domain'/cork.rc"
+                        socket "/run/slowcgi.sock"
+                }
+        }
+}
+
+types {
+	include "/usr/share/misc/mime.types"
+}'
+
+if [ $# -ne 0 ]
+then
+	for f
+	do
+		$f
+	done
+else
+	all
+fi