#! /bin/bash

OURNAME=13_install_ssl_certs.sh

echo -e "\n-- Executing ${ORANGE}${OURNAME}${NC} subscript --"

#### SSL CERTS ####

# Install acme.sh
# NOTE: the version 3.0.7 has a bug with Nginx certs, so version is pinned to 3.0.6
ACME_VERSION="3.0.6"
wget https://raw.githubusercontent.com/acmesh-official/acme.sh/${ACME_VERSION}/acme.sh
sh acme.sh --install --auto-upgrade 0
rm -rf acme.sh

# WildDuck TLS config
echo 'cert="/etc/wildduck/certs/fullchain.pem"
key="/etc/wildduck/certs/privkey.pem"' > /etc/wildduck/tls.toml

sed -i -e "s/key=/#key=/g;s/cert=/#cert=/g" /etc/zone-mta/interfaces/feeder.toml
echo '# @include "../../wildduck/tls.toml"' >> /etc/zone-mta/interfaces/feeder.toml

# vanity script as first run should not restart anything
echo '#!/bin/bash
echo "OK"' > /usr/local/bin/reload-services.sh
chmod +x /usr/local/bin/reload-services.sh

~/.acme.sh/acme.sh --issue --nginx --server letsencrypt \
    -d "$HOSTNAME" \
    --key-file       /etc/wildduck/certs/privkey.pem  \
    --fullchain-file /etc/wildduck/certs/fullchain.pem \
    --reloadcmd     "/usr/local/bin/reload-services.sh" \
    --force || echo "Warning: Failed to generate certificates, using self-signed certs"

# Update site config, make sure ssl is enabled
echo "server {
    listen 80;
    listen [::]:80;
    listen 443 ssl http2;
    listen [::]:443 ssl http2;

    server_name $HOSTNAME;

    ssl_certificate /etc/wildduck/certs/fullchain.pem;
    ssl_certificate_key /etc/wildduck/certs/privkey.pem;

    # special config for EventSource to disable gzip
    location /api/events {
        proxy_http_version 1.1;
        gzip off;
        proxy_set_header X-Real-IP \$remote_addr;
        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
        proxy_set_header HOST \$http_host;
        proxy_set_header X-NginX-Proxy true;
        proxy_pass http://127.0.0.1:3000;
        proxy_redirect off;
    }

    # special config for uploads
    location /webmail/send {
        client_max_body_size 15M;
        proxy_http_version 1.1;
        proxy_set_header X-Real-IP \$remote_addr;
        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
        proxy_set_header HOST \$http_host;
        proxy_set_header X-NginX-Proxy true;
        proxy_pass http://127.0.0.1:3000;
        proxy_redirect off;
    }

    location / {
        proxy_http_version 1.1;
        proxy_set_header X-Real-IP \$remote_addr;
        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
        proxy_set_header HOST \$http_host;
        proxy_set_header X-NginX-Proxy true;
        proxy_pass http://127.0.0.1:3000;
        proxy_redirect off;
    }
}" > "/etc/nginx/sites-available/$HOSTNAME"

#See issue https://github.com/zone-eu/wildduck/issues/83
$SYSTEMCTL_PATH start nginx
$SYSTEMCTL_PATH reload nginx