Implement the rest of the first script draft

bibliotecha.sh

@@ -40,6 +40,11 @@
 APT_CMD="apt -q"
 APT_INSTALL_CMD="$APT_CMD install -y --no-install-recommends"
 
+CALIBRE_DATABASE_PATH="/opt/calibre-database"
+CAPTIVE_PORTAL_PATH="/var/www/bibliotecha"
+CALIBRE_WEB_PATH="/var/www/calibre-web"
+LIGHTTPD_CONFIG_PATH="/etc/lighttpd/bibliotecha"
+
 function await_any_key {
     echo "" 
     # shellcheck disable=SC2034
@@ -99,10 +104,6 @@ function ensure_stretch_based_distribution {
 
   local installing_on_stretch_based=1
 
-  if [ ! -f /usr/bin/foobar ]; then
-    installing_on_stretch_based=
-  fi
-
   if [ ! -f /etc/apt/sources.list ]; then
     installing_on_stretch_based=
   else
@@ -117,8 +118,9 @@ function ensure_stretch_based_distribution {
   fi
 
   if [ ! $installing_on_stretch_based ]; then
-    echo $"You should only run this on a Debian Stretch based system"
-    exit 0
+    echo "You should only run this on a Debian Stretch based system"
+    echo "Cannot continue ..."
+    exit 1
   fi
 }
 
@@ -144,22 +146,15 @@ function disable_networking_services {
 
   local services="dnsmasq hostapd"
 
-  systemctl stop ${services} 
-}
-
-function ensure_variable_set {
-  local variable="${1}"
-
-  if [[ -z "${variable}" ]]; then
-    echo $"${variable} is not set. Cannot proceed ..."
-    exit 1
-  fi
+  systemctl stop "${services}"
 }
 
 function configure_network_interfaces {
   echo "Configuring networking interfaces ..."
 
-  ethernet_interface=$(ls /sys/class/net/ | grep foo)
+  # shellcheck disable=SC2010
+  # shellcheck disable=SC2155
+  ethernet_interface=$(ls /sys/class/net/ | grep en)
   local ethernet_filename="/etc/network/interfaces.d/${ethernet_interface}"
 
   if [[ -z "${ethernet_interface}" ]]; then
@@ -175,6 +170,8 @@ function configure_network_interfaces {
     echo "allow-hotplug ${ethernet_interface}"; 
     echo "iface ${ethernet_interface} inet dhcp"; } > "${ethernet_filename}"
 
+  # shellcheck disable=SC2010
+  # shellcheck disable=SC2155
   local wireless_interface=$(ls /sys/class/net/ | grep wl)
   local wireless_filename="/etc/network/interfaces.d/${wireless_interface}"
 
@@ -196,6 +193,8 @@ function configure_network_interfaces {
 function configure_dnsmasq {
   echo "Configuring dnsmasq ..."
 
+  # shellcheck disable=SC2010
+  # shellcheck disable=SC2155
   local wireless_interface=$(ls /sys/class/net/ | grep wl)
   local wireless_filename="/etc/dnsmasq.d/${wireless_interface}.conf"
 
@@ -223,6 +222,8 @@ function configure_dnsmasq {
 function configure_hostapd {
   echo "Configuring hostapd ..."
 
+  # shellcheck disable=SC2010
+  # shellcheck disable=SC2155
   local wireless_interface=$(ls /sys/class/net/ | grep wl)
   local hostapd_filename="/etc/hostapd/hostapd.conf"
 
@@ -252,28 +253,147 @@ function enable_networking_services {
   local services="dnsmasq hostapd"
 
   systemctl unmask hostapd
-  systemctl enable ${services} 
+  systemctl enable "${services}"
+}
+
+function install_webserver {
+  echo "Installing lighttpd ..."
+
+  $APT_INSTALL_CMD lighttpd
+}
+
+function configure_webserver {
+  echo "Configuring bibliotecha under lighttpd ..."
+
+  if ! grep -q bibliotecha /etc/lighttpd/lighttpd.conf; then
+    echo ""
+    echo 'include "bibliotecha/bibliotecha.conf"' >> /etc/lighttpd/lighttpd.conf
+  fi
+
+  mkdir -p "$LIGHTTPD_CONFIG_PATH"
+
+  { echo 'server.error-handler-404 = "/bibliotecha/index.html"'
+    echo ""
+    # shellcheck disable=SC2016
+    echo '$HTTP["host"] = "bibliotecha.library" {'
+    echo '  proxy.server = ("" => (("host" => "127.0.0.1", "port" => "8083")))'
+    echo '}'; } > "$LIGHTTPD_CONFIG_PATH/bibliotecha.conf"
+}
+
+function configure_captive_portal {
+  echo "Configuring the captive portal page ..."
+
+  $APT_INSTALL_CMD wget
+
+  captive_portal_url="https://git.vvvvvvaria.org/varia/bibliotecha-captive-portal/raw/branch/master/index.html"
+
+  mkdir -p "$CAPTIVE_PORTAL_PATH"
+  wget "$captive_portal_url" -O "$CAPTIVE_PORTAL_PATH/index.html"
+  chown -R www-data: "$CAPTIVE_PORTAL_PATH"
+}
+
+function install_calibre {
+  echo "Install Calibre ..."
+
+  $APT_INSTALL_CMD calibre
+}
+
+function configure_calibre_database {
+  echo "Configuring the Calibre database ..."
+
+  mkdir -p "$CALIBRE_DATABASE_PATH"
+}
+
+function install_calibreweb {
+  echo "Installing Calibre-web ..."
+
+  $APT_INSTALL_CMD git python3 python3-pip python3-dev python3-venv
+
+  # TODO(decentral1se): So, we're temporarily forking calibre-web because we
+  # ran into https://github.com/janeczku/calibre-web/issues/951. Hopefully this
+  # is resolved soon and we can continue on the regular upstream
+  calibre_web_url="https://github.com/decentral1se/calibre-web"
+  calibre_web_temp_branch="bibliotecha/temp-fork"
+
+  if [ ! -d "$CALIBRE_WEB_PATH" ]; then
+    git clone "$calibre_web_url" "$CALIBRE_WEB_PATH"
+    cd "$CALIBRE_WEB_PATH" && \
+      git fetch origin && \
+      git checkout "origin/$calibre_web_temp_branch"
+  fi
+
+  if [ ! -d "$CALIBRE_WEB_PATH/.venv" ]; then
+    # shellcheck disable=SC1091
+    cd "$CALIBRE_WEB_PATH" && \
+      python3 -m venv .venv && \
+      .venv/bin/pip install -r requirements.txt
+  fi
+
+  chown -R www-data: "$CALIBRE_WEB_PATH"
+}
+
+function configure_calibreweb {
+  echo "Configuring Calibre-web ..."
+
+  { echo "Description=Calibre-Web"
+    echo ""
+    echo "[Service]"
+    echo "Type=simple"
+    echo "User=root"
+    echo "ExecStart=$CALIBRE_WEB_PATH/.venv/bin/python $CALIBRE_WEB_PATH/cps.py"
+    echo "WorkingDirectory=$CALIBRE_WEB_PATH"
+    echo ""
+    echo "[Install]"
+    echo "WantedBy=multi-user.target"; } > /etc/systemd/system/cps.service
+
+    systemctl enable cps.service
+}
+
+function show_post_install_banner {
+  echo ""
+  echo "Installation complete!"
+  echo ""
+  echo "The system will now reboot"
+  echo "Please see the manual for post-installation tasks"
+  echo "And help with troubleshooting the network configuration"
+  echo ""
+  echo "      https://manual.bibliotecha.info/#TODO"
+  echo ""
+}
+
+function reboot_system {
+  echo "Rebooting system ..."
+
+  reboot
 }
 
 function run_installation {
-  #ensure_root_account
-  #ensure_stretch_based_distribution
+  ensure_root_account
+  ensure_stretch_based_distribution
+
+  show_bibliotecha_banner
+  show_introduction_text
+
+  run_apt_update
 
-  #show_bibliotecha_banner
-  #show_introduction_text
+  install_networking_packages
+  disable_networking_services
+  configure_network_interfaces
+  configure_dnsmasq
+  configure_hostapd
+  enable_networking_services
 
-  #run_apt_update
+  install_webserver
+  configure_webserver
+  configure_captive_portal
 
-  #install_networking_packages
-  #disable_networking_services
-  #configure_network_interfaces
-  #configure_dnsmasq
-  #configure_hostapd
-  #enable_networking_services
+  install_calibre
+  configure_calibre_database
+  install_calibreweb
+  configure_calibreweb
 
-  # TODO
-  # install lighttpd and configure it
-  # install calibre web and configure it
+  show_post_install_banner
+  reboot_system
 }
 
 run_installation