#!/bin/bash
# Jitsi Meet recurring upgrader and customization keeper
# for Debian/*buntu binaries.
# SwITNet Ltd © - 2021, https://switnet.net/
# GNU GPLv3 or later.

Blue='\e[0;34m'
Purple='\e[0;35m'
Green='\e[0;32m'
Yellow='\e[0;33m'
Color_Off='\e[0m'
printwc() {
    printf "%b$2%b" "$1" "${Color_Off}"
}
#Check if user is root
if ! [ "$(id -u)" = 0 ]; then
   echo "You need to be root or have sudo privileges!"
   exit 0
fi
if [ ! -f jm-bm.sh ]; then
    echo "Please check that you are running the jitsi updater while being on the project folder"
    echo "other wise the updater might have errors or be incomplete. Exiting..."
    exit
fi
support="https://switnet.net/support"
apt_repo="/etc/apt/sources.list.d"
ENABLE_BLESSM="TBD"
CHD_LTST="$(curl -sL https://chromedriver.storage.googleapis.com/LATEST_RELEASE)"
CHD_LTST_2D="$(echo "$CHD_LTST"|cut -d "." -f 1,2)"
CHDB="$(whereis chromedriver | awk '{print$2}')"
DOMAIN="$(find /etc/prosody/conf.d/ -name \*.lua|awk -F'.cfg' '!/localhost/{print $1}'|xargs basename)"
NC_DOMAIN="TBD"
JITSI_MEET_PROXY="/etc/nginx/modules-enabled/60-jitsi-meet.conf"
if [ -f "$JITSI_MEET_PROXY" ];then
PREAD_PROXY=$(grep -nr "preread_server_name" "$JITSI_MEET_PROXY" | cut -d ":" -f1)
fi
INT_CONF="/usr/share/jitsi-meet/interface_config.js"
INT_CONF_ETC="/etc/jitsi/meet/$DOMAIN-interface_config.js"
jibri_packages="$(grep Package /var/lib/apt/lists/download.jitsi.org_*_Packages |sort -u|awk '{print $2}'|sed 's|jigasi||')"
AVATAR="$(grep -r avatar /etc/nginx/sites-*/ 2>/dev/null)"
if [ -f "$apt_repo"/google-chrome.list ]; then
    google_package=$(grep Package /var/lib/apt/lists/dl.google.com_linux_chrome_deb_dists_stable_main_binary-amd64_Packages | sort -u | cut -d ' ' -f2)
else
    echo "Seems no Google repo installed"
fi
if [ -z "$CHDB" ]; then
    echo "Seems no chromedriver installed"
else
    CHD_VER_LOCAL="$($CHDB -v | awk '{print $2}')"
    CHD_VER_2D="$(echo "$CHD_VER_LOCAL"|awk '{printf "%.1f\n", $NF}')"
fi

# True if $1 is greater than $2
version_gt() { test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"; }

check_jibri() {
if [ "$(dpkg-query -W -f='${Status}' "jibri" 2>/dev/null | grep -c "ok installed")" == "1" ]
then
    systemctl restart jibri
    systemctl restart jibri-icewm
    systemctl restart jibri-xorg
else
    echo "Jibri service not installed"
fi
}

# Restarting services
restart_services() {
    systemctl restart jitsi-videobridge2
    systemctl restart jicofo
    check_jibri
    systemctl restart prosody
}

update_jitsi_repo() {
    apt-get update -o Dir::Etc::sourcelist="sources.list.d/jitsi-$1.list" \
        -o Dir::Etc::sourceparts="-" -o APT::Get::List-Cleanup="0"
    apt-get install -qq --only-upgrade "$jibri_packages"
}

update_google_repo() {
    if [ -f "$apt_repo"/google-chrome.list ]; then
    apt-get update -o Dir::Etc::sourcelist="sources.list.d/google-chrome.list" \
        -o Dir::Etc::sourceparts="-" -o APT::Get::List-Cleanup="0"
    apt-get install -qq --only-upgrade "$google_package"
    else
        echo "No Google repository found"
    fi
}
GOOGL_VER_2D="$(/usr/bin/google-chrome --version|awk '{printf "%.1f\n", $NF}')"
upgrade_cd() {
if [ -n "$GOOGL_VER_2D" ]; then
    if version_gt "$GOOGL_VER_2D" "$CHD_VER_2D" ; then
        echo "Upgrading Chromedriver to Google Chromes version"
        wget -q https://chromedriver.storage.googleapis.com/"$CHD_LTST"/chromedriver_linux64.zip \
             -O /tmp/chromedriver_linux64.zip
        unzip -o /tmp/chromedriver_linux64.zip -d /usr/local/bin/
        chown root:root "$CHDB"
        chmod 0755 "$CHDB"
        rm -rf /tpm/chromedriver_linux64.zip
        printf "Current version: "
        printwc "$Green" "$($CHDB -v |awk '{print $2}'|awk '{printf "%.1f\n", $NF}')"
        echo -e " (latest available)\n"
    elif [ "$GOOGL_VER_2D" = "$CHD_LTST_2D" ]; then
        echo "No need to upgrade Chromedriver"
        printf "Current version: "
        printwc "$Green" "$CHD_VER_2D\n"
    fi
else
  printwc "${Yellow}" " -> No Google Chrome versión to match, leaving untouched.\n"
fi
}

check_lst_cd() {
printwc "${Purple}" "Checking for the latest Chromedriver\n"
if [ -f "$CHDB" ]; then
    printf "Current installed Chromedriver: "
    printwc "${Yellow}" "$CHD_VER_2D\n"
    printf "Current installed Google Chrome: "
    printwc "${Green}" "$GOOGL_VER_2D\n"
    upgrade_cd
else
    printwc "${Yellow}" " -> Seems there is no Chromedriver installed\n"
fi
}

printwc "${Blue}" "Update & upgrade Jitsi and components\n"
if [ -f "$apt_repo"/jitsi-unstable.list ]; then
    update_jitsi_repo unstable
    update_google_repo
    check_lst_cd
elif [ -f "$apt_repo"/jitsi-stable.list ]; then
    update_jitsi_repo stable
    update_google_repo
    check_lst_cd
else
    echo "Please check your repositories, something is not right."
    exit 1
fi
# Any customization, image, name or link change for any purpose should
# be documented here so new updates won't remove those changes.
# We divide them on UI changes and branding changes, feel free to adapt
# to your needs.
#
# Please keep in mind that fees for support customization changes may
# apply.
########################################################################
#                     User interface changes                           #
########################################################################

if [ -f "$INT_CONF_ETC" ]; then
    echo "Static interface_config.js exists, skipping modification..."
else
    echo "This setup doesn't have a static interface_config.js, checking changes..."
    printwc "${Purple}" "========== Setting Static Avatar  ==========\n"
    if [[ -z "$AVATAR" ]]; then
        echo "Moving on..."
    else
        echo "Setting Static Avatar"
        sed -i "/RANDOM_AVATAR_URL_PREFIX/ s|false|\'http://$DOMAIN/avatar/\'|" "$INT_CONF"
        sed -i "/RANDOM_AVATAR_URL_SUFFIX/ s|false|\'.png\'|" "$INT_CONF"
    fi
    printwc "${Purple}" "========== Setting Support Link  ==========\n"
    if [[ -z "$support" ]]; then
        echo "Moving on..."
    else
        echo "Setting Support custom link"
        sed -i "s|https://jitsi.org/live|$support|g" "$INT_CONF"
    fi
    printwc "${Purple}" "========== Disable Blur my background  ==========\n"
    sed -i "s|'videobackgroundblur', ||" "$INT_CONF"
fi

if [  "$NC_DOMAIN" != "TBD" ]; then
printwc "${Purple}" "========== Enable $NC_DOMAIN for sync client ==========\n"
    if [ -z "$PREAD_PROXY" ]; then
        printf "\n  Setting up Nextcloud domain on Jitsi Meet turn proxy\n\n"
        sed -i "/server {/i \ \ map \$ssl_preread_server_name \$upstream {" "$JITSI_MEET_PROXY"
        sed -i "/server {/i \ \ \ \ \ \ $DOMAIN    web;" "$JITSI_MEET_PROXY"
        sed -i "/server {/i \ \ \ \ \ \ $NC_DOMAIN    web;" "$JITSI_MEET_PROXY"
        sed -i "/server {/i \ \ }" "$JITSI_MEET_PROXY"
      else
        echo "$NC_DOMAIN seems to be on place, skipping..."
    fi
fi
restart_services

########################################################################
#                         Brandless mode                               #
########################################################################
if [ "$ENABLE_BLESSM" = "on" ]; then
    bash "$PWD"/jm-bm.sh
fi
printwc "${Blue}" "Script completed \o/!\n"