docker-ftps/run.sh

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#!/bin/sh
############ MASQUERADE
MASQUERADE=${MASQUERADE:-127.0.0.1}
echo "MasqueradeAddress ${MASQUERADE}" > /etc/proftpd/conf.d/masquerade.conf
############ AUTH
[ ! -f /auth/passwd ] && touch /auth/passwd
chmod 0600 /auth/passwd
chmod 0700 /auth
############ TLS
TLS_CERT=${TLS_CERT:-/certs/cert.pem}
TLS_KEY=${TLS_KEY:-/certs/privkey.pem}
TLS_CHAIN=${TLS_CHAIN:-/certs/chain.pem}
cat $TLS_CERT > /etc/proftpd/cert.pem
cat $TLS_KEY > /etc/proftpd/privkey.pem
cat $TLS_CHAIN > /etc/proftpd/chain.pem
############ CHECK CERT KEY ALGO
ALGO=$(openssl x509 -in /etc/proftpd/cert.pem -text | sed -n 's/\ *Public Key Algorithm: //p')
if [ "$ALGO" = "id-ecPublicKey" ] ; then
cat > /etc/proftpd/conf.d/certificate.conf <<EOF
<IfModule mod_tls.c>
TLSECCertificateFile /etc/proftpd/cert.pem
TLSECCertificateKeyFile /etc/proftpd/privkey.pem
TLSCertificateChainFile /etc/proftpd/chain.pem
</IfModule>
EOF
fi
if [ "$ALGO" = "rsaEncryption" ] ; then
cat > /etc/proftpd/conf.d/certificate.conf <<EOF
<IfModule mod_tls.c>
TLSRSACertificateFile /etc/proftpd/cert.pem
TLSRSACertificateKeyFile /etc/proftpd/privkey.pem
TLSCertificateChainFile /etc/proftpd/chain.pem
</IfModule>
EOF
fi
############ PASSIVE PORTS
PASSIVEPORTS_START=${PASSIVEPORTS_START:-50000}
PASSIVEPORTS_END=${PASSIVEPORTS_END:-50050}
echo "PassivePorts ${PASSIVEPORTS_START} ${PASSIVEPORTS_END}" > /etc/proftpd/conf.d/passive_ports.conf
############ START
proftpd -n