streama-server.sh

#!/usr/bin/env bash
# Script that installs Streama media server on your system.

PACKAGE_POOL="/usr/local"
VERSION='1.10.3'
ENABLE_SERVICES=1

STREAMA_USER='streama'
STREAMA_UID='891'
STREAMA_GID='891'
STREAMA_DIR='/data/streama'

DOWNLOAD_URL="https://github.com/streamaserver/streama/releases/download/v${VERSION}/streama-${VERSION}.jar"

# You need root permissions to run this script.
if [[ "${UID}" != '0' ]]; then
    echo '> You need to become root to run this script.'
    echo '> Aborting.'
    exit 1
fi

# Function that checks if required binary exists and installs it if necessary.
ENSURE_PACKAGE () {
    REQUIRED_BINARY=$(basename "${1}")
    REPO_PACKAGES="${*:2}"

    if [[ "${REQUIRED_BINARY}" != '-' ]]; then
        [[ -n "${REPO_PACKAGES}" ]] || REPO_PACKAGES="${REQUIRED_BINARY}"

        if command -v "${REQUIRED_BINARY}" 1> /dev/null; then
            REPO_PACKAGES=''
        fi
    fi

    [[ -n "${REPO_PACKAGES}" ]] || return

    if [[ "${REPO_REFRESHED}" == '0' ]]; then
        echo '> Refreshing package repository.'
        dnf check-update 1> /dev/null
        REPO_REFRESHED=1
    fi

    for REPO_PACKAGE in ${REPO_PACKAGES}
    do
        dnf install -y "${REPO_PACKAGE}"
    done
}

# Variable that keeps track if repository is already refreshed.
REPO_REFRESHED=0

# Install dependencies if necessary.
ENSURE_PACKAGE 'wget'
ENSURE_PACKAGE '-' 'java-1.8.0-openjdk'

# Download Streama archive.
TMP_DATE="$(date +%s)"
TMP_FILE="/tmp/streama-${TMP_DATE}.jar"

if ! wget "${DOWNLOAD_URL}" -O "${TMP_FILE}"; then
    echo '> Unable to download required files, exiting.'
    echo '> Aborting.'
    exit 1
fi

# Copy files.
[[ -d "${PACKAGE_POOL}/share/streama" ]] || mkdir -p "${PACKAGE_POOL}/share/streama"
mv "${TMP_FILE}" "${PACKAGE_POOL}/share/streama/streama.jar"

# Create executable script.
[[ -d "${PACKAGE_POOL}/sbin" ]] || mkdir -p "${PACKAGE_POOL}/sbin"

cat > "${PACKAGE_POOL}/sbin/streama" <<EOL
#!/bin/sh

/usr/lib/jvm/jre-1.8.0/bin/java -jar "${PACKAGE_POOL}/share/streama/streama.jar"

EOL

# Fix script permissions.
chmod +x "${PACKAGE_POOL}/sbin/streama"

# Create user for streama server.
if ! getent passwd "${STREAMA_USER}" 1> /dev/null 2>&1; then
    groupadd \
        --gid ${STREAMA_GID} \
        "${STREAMA_USER}"

    useradd \
        --uid ${STREAMA_UID} \
        --gid ${STREAMA_GID} \
        --no-create-home \
        --home-dir "${STREAMA_DIR}" \
        --comment 'Self Hosted Media Server' \
        --shell '/sbin/nologin ' \
        "${STREAMA_USER}"
fi

# Make sure that directory for streama exists and has correct permissions.
[[ -d "${STREAMA_DIR}" ]] || mkdir -p "${STREAMA_DIR}"
chown -R nobody:"${STREAMA_USER}" "${STREAMA_DIR}"
chmod g+w "${STREAMA_DIR}"
chmod g+s "${STREAMA_DIR}"

# Create systemd service file for streama server.
[[ -d "${PACKAGE_POOL}/lib/systemd/system" ]] || mkdir -p "${PACKAGE_POOL}/lib/systemd/system"

cat > "${PACKAGE_POOL}/lib/systemd/system/streama.service" <<EOL
[Unit]
Description=Self hosted streaming media server
After=network.target remote-fs.target nss-lookup.target

[Service]
User=${STREAMA_USER}
Group=${STREAMA_USER}
WorkingDirectory=${STREAMA_DIR}
PrivateTmp=true
ExecStart=/usr/lib/jvm/jre-1.8.0/bin/java -jar ${PACKAGE_POOL}/share/streama/streama.jar
SuccessExitStatus=143
StandardOutput=file:/var/log/streama.log

[Install]
WantedBy=multi-user.target
EOL

# Reload systemd daemon.
systemctl daemon-reload

# Create file for logging.
touch /var/log/streama.log
chown root:"${STREAMA_USER}" /var/log/streama.log
chmod 660 /var/log/streama.log
chmod +t /var/log/streama.log

# Configuring service.
if [[ "${ENABLE_SERVICES}" == '1' ]]; then
    systemctl enable streama
    systemctl restart streama
else
    systemctl disable streama
    systemctl stop streama
fi

# Create a file that can be used for uninstalling.
cat > "${PACKAGE_POOL}/share/streama/uninstall.txt" <<EOL
systemctl disable streama
systemctl stop streama
rm -f "${PACKAGE_POOL}/lib/systemd/system/streama.service"
userdel "${STREAMA_USER}"
groupdel "${STREAMA_USER}" 2> /dev/null
rm -f "/var/spool/mail/${STREAMA_USER}"
rm -rf "${STREAMA_DIR}"
rm -f "/var/log/streama.log"
rm -f "${PACKAGE_POOL}/sbin/streama"
rm -f "${PACKAGE_POOL}/share/streama/streama.jar"
rm -f "${PACKAGE_POOL}/share/streama/uninstall.txt"
rmdir "${PACKAGE_POOL}/share/streama" 2> /dev/null
EOL

# Let user know that script has finished its job.
echo '> Finished.'