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Merge pull request #37 from jrmhaig/split_sudo

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Make /etc/visudo file a bit more readable
This commit is contained in:
Bill Zimmerman 2016-09-18 18:23:32 +02:00 committed by GitHub
commit 3a958e3f3b
2 changed files with 38 additions and 6 deletions
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15
README.md
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@ -51,8 +51,21 @@ So what I have done is added the `www-data` user to the sudoers file, but with r
Add the following to the end of `/etc/sudoers`:
```sh
www-data ALL=(ALL) NOPASSWD:/sbin/ifdown wlan0,/sbin/ifup wlan0,/bin/cat /etc/wpa_supplicant/wpa_supplicant.conf,/bin/cp /tmp/wifidata /etc/wpa_supplicant/wpa_supplicant.conf,/sbin/wpa_cli scan_results, /sbin/wpa_cli scan,/bin/cp /tmp/hostapddata /etc/hostapd/hostapd.conf, /etc/init.d/hostapd start,/etc/init.d/hostapd stop,/etc/init.d/dnsmasq start, /etc/init.d/dnsmasq stop,/bin/cp /tmp/dhcpddata /etc/dnsmasq.conf, /sbin/shutdown -h now, /sbin/reboot
www-data ALL=(ALL) NOPASSWD:/sbin/ifdown wlan0
www-data ALL=(ALL) NOPASSWD:/sbin/ifup wlan0
www-data ALL=(ALL) NOPASSWD:/bin/cat /etc/wpa_supplicant/wpa_supplicant.conf
www-data ALL=(ALL) NOPASSWD:/bin/cp /tmp/wifidata /etc/wpa_supplicant/wpa_supplicant.conf
www-data ALL=(ALL) NOPASSWD:/sbin/wpa_cli scan_results
www-data ALL=(ALL) NOPASSWD:/sbin/wpa_cli scan
www-data ALL=(ALL) NOPASSWD:/sbin/wpa_cli reconfigure
www-data ALL=(ALL) NOPASSWD:/bin/cp /tmp/hostapddata /etc/hostapd/hostapd.conf
www-data ALL=(ALL) NOPASSWD:/etc/init.d/hostapd start
www-data ALL=(ALL) NOPASSWD:/etc/init.d/hostapd stop
www-data ALL=(ALL) NOPASSWD:/etc/init.d/dnsmasq start
www-data ALL=(ALL) NOPASSWD:/etc/init.d/dnsmasq stop
www-data ALL=(ALL) NOPASSWD:/bin/cp /tmp/dhcpddata /etc/dnsmasq.conf
www-data ALL=(ALL) NOPASSWD:/sbin/shutdown -h now
www-data ALL=(ALL) NOPASSWD:/sbin/reboot
```
Once those modifications are done, git clone the files to `/var/www/html`.

29
installers/common.sh
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@ -4,10 +4,10 @@ version=`cat /etc/debian_version`
# Determine version and set default home location for lighttpd
if [ $version == "8.0" ]; then
echo -n "Raspian verison is 8.0 Jessie"
echo "Raspian verison is 8.0 Jessie"
webroot_dir="/var/www/html"
elif [ $version == "7.8" ]; then
echo -n "Raspian version is 7.8 Wheezy"
echo "Raspian version is 7.8 Wheezy"
webroot_dir="/var/www"
fi
@ -102,12 +102,31 @@ function move_config_file() {
sudo chown -R $raspap_user:$raspap_user "$raspap_dir" || install_error "Unable to change file ownership for '$raspap_dir'"
}
# Add a single entry to the sudoers file
function sudo_add() {
sudo bash -c "echo \"www-data ALL=(ALL) NOPASSWD:$1\" | (EDITOR=\"tee -a\" visudo)" \
|| install_error "Unable to patch /etc/sudoers"
}
# Adds www-data user to the sudoers file with restrictions on what the user can execute
function patch_system_files() {
install_log "Patching system sudoers file"
# patch /etc/sudoers file
sudo bash -c 'echo "www-data ALL=(ALL) NOPASSWD:/sbin/ifdown wlan0,/sbin/ifup wlan0,/bin/cat /etc/wpa_supplicant/wpa_supplicant.conf,/bin/cp /tmp/wifidata /etc/wpa_supplicant/wpa_supplicant.conf,/sbin/wpa_cli scan_results, /sbin/wpa_cli scan,/sbin/wpa_cli reconfigure,/bin/cp /tmp/hostapddata /etc/hostapd/hostapd.conf, /etc/init.d/hostapd start,/etc/init.d/hostapd stop,/etc/init.d/dnsmasq start, /etc/init.d/dnsmasq stop,/bin/cp /tmp/dhcpddata /etc/dnsmasq.conf, /sbin/shutdown -h now, /sbin/reboot" | (EDITOR="tee -a" visudo)' \
|| install_error "Unable to patch /etc/sudoers"
install_log "Patching system sudoers file"
sudo_add '/sbin/ifdown wlan0'
sudo_add '/sbin/ifup wlan0'
sudo_add '/bin/cat /etc/wpa_supplicant/wpa_supplicant.conf'
sudo_add '/bin/cp /tmp/wifidata /etc/wpa_supplicant/wpa_supplicant.conf'
sudo_add '/sbin/wpa_cli scan_results'
sudo_add '/sbin/wpa_cli scan'
sudo_add '/sbin/wpa_cli reconfigure'
sudo_add '/bin/cp /tmp/hostapddata /etc/hostapd/hostapd.conf'
sudo_add '/etc/init.d/hostapd start'
sudo_add '/etc/init.d/hostapd stop'
sudo_add '/etc/init.d/dnsmasq start'
sudo_add '/etc/init.d/dnsmasq stop'
sudo_add '/bin/cp /tmp/dhcpddata /etc/dnsmasq.conf'
sudo_add '/sbin/shutdown -h now'
sudo_add '/sbin/reboot'
}
function install_complete() {