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raspap-webgui/installers/common.sh

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raspap_dir="/etc/raspap"
raspap_user="www-data"
version=`cat /etc/debian_version`
# Determine version and set default home location for lighttpd
if [ $version == "8.0" ]; then
echo "Raspian verison is 8.0 Jessie"
webroot_dir="/var/www/html"
elif [ $version == "7.8" ]; then
echo "Raspian version is 7.8 Wheezy"
webroot_dir="/var/www"
fi
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# Outputs a RaspAP INSTALL log line
function install_log() {
echo -e "\033[1;32mRaspAP INSTALL: $*\033[m"
}
# Outputs a RaspAP INSTALL ERROR log line and exits with status code 1
function install_error() {
echo -e "\033[1;37;41mRaspAP INSTALL ERROR: $*\033[m"
exit 1
}
### NOTE: all the below functions are overloadable for system-specific installs
### NOTE: some of the below functions MUST be overloaded due to system-specific installs
function config_installation() {
install_log "Configure installation"
echo -n "Install directory [${raspap_dir}]: "
read input
if [ ! -z "$input" ]; then
raspap_dir="$input"
fi
echo -n "Complete installation with these values? [y/N]: "
read answer
if [[ $answer != "y" ]]; then
echo "Installation aborted."
exit 0
fi
}
# Runs a system software update to make sure we're using all fresh packages
function update_system_packages() {
# OVERLOAD THIS
install_error "No function definition for update_system_packages"
}
# Installs additional dependencies using system package manager
function install_dependencies() {
# OVERLOAD THIS
install_error "No function definition for install_dependencies"
}
# Enables PHP for lighttpd and restarts service for settings to take effect
function enable_php_lighttpd() {
install_log "Enabling PHP for lighttpd"
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sudo lighty-enable-mod fastcgi-php || install_error "Cannot enable fastcgi-php for lighttpd"
sudo /etc/init.d/lighttpd restart || install_error "Unable to restart lighttpd"
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}
# Verifies existence and permissions of RaspAP directory
function create_raspap_directories() {
install_log "Creating RaspAP directories"
if [ -d "$raspap_dir" ]; then
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sudo mv $raspap_dir $raspap_dir.original || install_error "Unable to move old '$raspap_dir' out of the way"
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fi
sudo mkdir -p "$raspap_dir" || install_error "Unable to create directory '$raspap_dir'"
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sudo chown -R $raspap_user:$raspap_user "$raspap_dir" || install_error "Unable to change file ownership for '$raspap_dir'"
}
# Fetches latest files from github to webroot
function download_latest_files() {
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if [ -d "$webroot_dir" ]; then
sudo mv $webroot_dir /tmp/old_webroot || install_error "Unable to remove old webroot directory"
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fi
install_log "Cloning latest files from github"
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git clone https://github.com/billz/raspap-webgui /tmp/raspap-webgui || install_error "Unable to download files from github"
sudo mv /tmp/raspap-webgui $webroot_dir || install_error "Unable to move raspap-webgui to web root"
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}
# Sets files ownership in web root directory
function change_file_ownership() {
if [ ! -d "$webroot_dir" ]; then
install_error "Web root directory doesn't exist"
fi
install_log "Changing file ownership in web root directory"
sudo chown -R $raspap_user:$raspap_user "$webroot_dir" || install_error "Unable to change file ownership for '$webroot_dir'"
}
# Move configuration file to the correct location
function move_config_file() {
if [ ! -d "$raspap_dir" ]; then
install_error "'$raspap_dir' directory doesn't exist"
fi
install_log "Moving configuration file to '$raspap_dir'"
sudo mv "$webroot_dir"/raspap.php "$raspap_dir" || install_error "Unable to move files to '$raspap_dir'"
sudo chown -R $raspap_user:$raspap_user "$raspap_dir" || install_error "Unable to change file ownership for '$raspap_dir'"
}
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# Set up default configuration
function default_configuration() {
install_log "Setting up hostapd"
if [ -f /etc/default/hostapd ]; then
sudo mv /etc/default/hostapd /tmp/default_hostapd.old || install_error "Unable to remove old /etc/default/hostapd file"
fi
sudo mv $webroot_dir/config/default_hostapd /etc/default/hostapd || install_error "Unable to move hostapd defaults file"
sudo mv $webroot_dir/config/hostapd.conf /etc/hostapd/hostapd.conf || install_error "Unable to move hostapd configuration file"
sudo mv $webroot_dir/config/dnsmasq.conf /etc/dnsmasq.conf || install_error "Unable to move dnsmasq configuration file"
sudo mv $webroot_dir/config/dhcpcd.conf /etc/dhcpcd.conf || install_error "Unable to move dhcpcd configuration file"
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}
# 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"
}
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# Adds www-data user to the sudoers file with restrictions on what the user can execute
function patch_system_files() {
# patch /etc/sudoers file
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'
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}
function install_complete() {
install_log "Installation completed!"
echo -n "The system needs to be rebooted as a final step. Reboot now? [y/N]: "
read answer
if [[ $answer != "y" ]]; then
echo "Installation aborted."
exit 0
fi
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sudo shutdown -r now || install_error "Unable to execute shutdown"
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}
function install_raspap() {
config_installation
update_system_packages
install_dependencies
enable_php_lighttpd
create_raspap_directories
download_latest_files
change_file_ownership
move_config_file
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default_configuration
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patch_system_files
install_complete
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}