mirror of
https://github.com/stalwartlabs/smtp-server.git
synced 2024-10-23 06:57:29 +00:00
765 lines
26 KiB
Bash
765 lines
26 KiB
Bash
#!/bin/sh
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# shellcheck shell=dash
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# Stalwart SMTP install script -- based on the rustup installation script.
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set -e
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set -u
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readonly BASE_PATH="/usr/local/stalwart-smtp"
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readonly BIN_PATH="${BASE_PATH}/bin"
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readonly CFG_PATH="${BASE_PATH}/etc"
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readonly QUEUE_PATH="${BASE_PATH}/queue"
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readonly LOG_PATH="${BASE_PATH}/logs"
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readonly REPORT_PATH="${BASE_PATH}/reports"
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readonly BASE_URL="https://github.com/stalwartlabs/smtp-server/releases/latest/download"
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readonly CONFIG_URL="https://raw.githubusercontent.com/stalwartlabs/smtp-server/main/resources/config/config.toml"
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readonly SYSTEMD_SVC_URL="https://raw.githubusercontent.com/stalwartlabs/smtp-server/main/resources/systemd/stalwart-smtp.service"
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readonly LAUNCHCTL_SVC_URL="https://raw.githubusercontent.com/stalwartlabs/smtp-server/main/resources/systemd/stalwart.smtp.plist"
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readonly CLI_URL="https://github.com/stalwartlabs/cli/releases/latest/download"
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main() {
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downloader --check
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need_cmd uname
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need_cmd mktemp
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need_cmd chmod
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need_cmd mkdir
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need_cmd rm
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need_cmd rmdir
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need_cmd tar
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# Make sure we are running as root
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if [ "$(id -u)" -ne 0 ] ; then
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err "❌ Install failed: This program needs to run as root."
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fi
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# Detect OS
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local _os="unknown"
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local _uname="$(uname)"
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_account="stalwart-smtp"
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if [ "${_uname}" = "Linux" ]; then
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_os="linux"
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elif [ "${_uname}" = "Darwin" ]; then
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_os="macos"
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_account="_stalwart-smtp"
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fi
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# Start configuration mode
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if [ "$#" -eq 1 ] && [ "$1" = "--init" ] ; then
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init
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configure
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return 0
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fi
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# Detect platform architecture
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get_architecture || return 1
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local _arch="$RETVAL"
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assert_nz "$_arch" "arch"
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# Download latest binary
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say "⏳ Downloading Stalwart SMTP for ${_arch}..."
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local _dir
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_dir="$(ensure mktemp -d)"
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local _file="${_dir}/stalwart-smtp.tar.gz"
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local _url="${BASE_URL}/stalwart-smtp-${_arch}.tar.gz"
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ensure mkdir -p "$_dir"
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ensure downloader "$_url" "$_file" "$_arch"
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# Create directories and download configuration file
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init
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# Download systemd/launchctl service
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if [ -d /etc/systemd/system ]; then
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if [ ! -f /etc/systemd/system/stalwart-smtp.service ]; then
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say "⬇️ Creating systemd service..."
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ensure downloader "${SYSTEMD_SVC_URL}" /etc/systemd/system/stalwart-smtp.service "systemd-service"
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fi
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elif [ -d /Library/LaunchDaemons ]; then
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if [ ! -f /Library/LaunchDaemons/stalwart.smtp.plist ]; then
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say "⬇️ Creating launchctl service..."
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ensure downloader "${LAUNCHCTL_SVC_URL}" /Library/LaunchDaemons/stalwart.smtp.plist "launchctl-service"
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fi
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fi
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# Create system account
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if ! id -u ${_account} > /dev/null 2>&1; then
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say "🖥️ Creating '${_account}' account..."
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if [ "${_os}" = "macos" ]; then
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local _last_uid="$(dscacheutil -q user | grep uid | awk '{print $2}' | sort -n | tail -n 1)"
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local _last_gid="$(dscacheutil -q group | grep gid | awk '{print $2}' | sort -n | tail -n 1)"
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local _uid="$((_last_uid+1))"
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local _gid="$((_last_gid+1))"
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ensure dscl /Local/Default -create Groups/_stalwart-smtp
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ensure dscl /Local/Default -create Groups/_stalwart-smtp Password \*
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ensure dscl /Local/Default -create Groups/_stalwart-smtp PrimaryGroupID $_gid
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ensure dscl /Local/Default -create Groups/_stalwart-smtp RealName "Stalwart SMTP service"
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ensure dscl /Local/Default -create Groups/_stalwart-smtp RecordName _stalwart-smtp stalwart-smtp
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ensure dscl /Local/Default -create Users/_stalwart-smtp
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ensure dscl /Local/Default -create Users/_stalwart-smtp NFSHomeDirectory /Users/_stalwart-smtp
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ensure dscl /Local/Default -create Users/_stalwart-smtp Password \*
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ensure dscl /Local/Default -create Users/_stalwart-smtp PrimaryGroupID $_gid
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ensure dscl /Local/Default -create Users/_stalwart-smtp RealName "Stalwart SMTP service"
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ensure dscl /Local/Default -create Users/_stalwart-smtp RecordName _stalwart-smtp stalwart-smtp
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ensure dscl /Local/Default -create Users/_stalwart-smtp UniqueID $_uid
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ensure dscl /Local/Default -create Users/_stalwart-smtp UserShell /bin/bash
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ensure dscl /Local/Default -delete /Users/_stalwart-smtp AuthenticationAuthority
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ensure dscl /Local/Default -delete /Users/_stalwart-smtp PasswordPolicyOptions
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else
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ensure useradd ${_account} -s /sbin/nologin -M
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fi
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fi
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# Copy binary
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say "⬇️ Installing Stalwart SMTP at ${BASE_PATH}..."
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ensure tar zxvf "$_file" -C "$_dir"
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ensure mv "$_dir/stalwart-smtp" "${BIN_PATH}/stalwart-smtp"
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ignore rm "$_file"
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# Install systemd service
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if [ -d /etc/systemd/system ]; then
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say "💡 Starting Stalwart SMTP systemd service..."
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ignore /bin/systemctl enable stalwart-smtp
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ignore /bin/systemctl restart stalwart-smtp
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elif [ -d /Library/LaunchDaemons ]; then
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say "💡 Starting Stalwart SMTP launchctl service..."
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ignore launchctl load /Library/LaunchDaemons/stalwart.smtp.plist
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ignore launchctl enable system/stalwart.smtp
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ignore launchctl start system/stalwart.smtp
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fi
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# Download CLI
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local _file="${_dir}/stalwart-cli.tar.gz"
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local _url="${CLI_URL}/stalwart-cli-${_arch}.tar.gz"
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say "⏳ Downloading Stalwart CLI for ${_arch}..."
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ensure mkdir -p "$_dir"
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ensure downloader "$_url" "$_file" "$_arch"
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# Install CLI
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say "⬇️ Installing Stalwart CLI at ${BIN_PATH}/stalwart-cli..."
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ensure tar zxvf "$_file" -C "$_dir"
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ensure mv "$_dir/stalwart-cli" "${BIN_PATH}/stalwart-cli"
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ignore rm "$_file"
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ignore rmdir "$_dir"
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# Configure
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configure
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say "🎉 Installed Stalwart SMTP! To complete the installation edit"
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say " ${CFG_PATH}/config.toml and restart the Stalwart SMTP service."
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return 0
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}
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init() {
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# Create directories
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ensure mkdir -p ${BIN_PATH}
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ensure mkdir -p ${QUEUE_PATH}
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ensure mkdir -p ${LOG_PATH}
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ensure mkdir -p ${REPORT_PATH}
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ensure mkdir -p ${CFG_PATH}/certs
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ensure mkdir -p ${CFG_PATH}/private
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# Download configuration file
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if [ ! -f ${CFG_PATH}/config.toml ]; then
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say "⬇️ Creating configuration file at ${CFG_PATH}/config.toml..."
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ensure downloader "${CONFIG_URL}" "${CFG_PATH}/config.toml" "config"
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fi
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}
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configure() {
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read -p "Enter the SMTP server's hostname [mx.yourdomain.org]: " hostname </dev/tty
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local hostname=${hostname:-mx.yourdomain.org}
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read -p "Enter your domain name [yourdomain.org]: " domain </dev/tty
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local domain=${domain:-yourdomain.org}
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read -p "Enter the SMTP server's administrator password [changeme]: " pass </dev/tty
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local pass=${pass:-changeme}
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read -p "Enter your LMTP server's hostname [localhost]: " lmtp_address </dev/tty
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local lmtp_address=${lmtp_address:-localhost}
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read -p "Enter your LMTP server's port [24]: " lmtp_port </dev/tty
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local lmtp_port=${lmtp_port:-24}
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ignore sed -i -r "s/__HOST__/${hostname}/g; s/__DOMAIN__/${domain}/g; s/__ADMIN_PASS__/${pass}/g; s/__LMTP_HOST__/${lmtp_address}/g; s/__LMTP_PORT__/${lmtp_port}/g;" ${CFG_PATH}/config.toml
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# Create self-signed certificates
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say "🔑 Creating TLS and DKIM certificates..."
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if [ ! -f ${CFG_PATH}/certs/tls.crt ]; then
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ignore openssl req -x509 -nodes -days 1825 -newkey rsa:4096 -subj '/CN=localhost' -keyout ${CFG_PATH}/private/tls.key -out ${CFG_PATH}/certs/tls.crt
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fi
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if [ ! -f ${CFG_PATH}/certs/dkim.crt ]; then
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ignore openssl genrsa -out ${CFG_PATH}/private/dkim.key 2048
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ignore openssl rsa -in ${CFG_PATH}/private/dkim.key -pubout -out ${CFG_PATH}/certs/dkim.crt
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fi
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# Read DKIM cert
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local pk="$(openssl rsa -in ${CFG_PATH}/private/dkim.key -pubout -outform der 2>/dev/null | openssl base64 -A)"
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echo ""
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echo "To enable DKIM please add the following record to your DNS server:"
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echo ""
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echo "Record: stalwart_smtp._domainkey.${domain}"
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echo "Value: v=DKIM1; p=${pk}"
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echo "Type: TXT"
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echo "TTL: 86400"
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echo ""
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# Set permissions
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ensure chown -R ${_account}:${_account} ${BASE_PATH}
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ensure chmod a+rx ${BASE_PATH}
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ensure chmod -R a+rx ${BIN_PATH}
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ensure chmod -R 770 ${CFG_PATH} ${QUEUE_PATH}
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}
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get_architecture() {
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local _ostype _cputype _bitness _arch _clibtype
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_ostype="$(uname -s)"
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_cputype="$(uname -m)"
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_clibtype="gnu"
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if [ "$_ostype" = Linux ]; then
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if [ "$(uname -o)" = Android ]; then
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_ostype=Android
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fi
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if ldd --version 2>&1 | grep -q 'musl'; then
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_clibtype="musl"
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fi
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fi
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if [ "$_ostype" = Darwin ] && [ "$_cputype" = i386 ]; then
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# Darwin `uname -m` lies
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if sysctl hw.optional.x86_64 | grep -q ': 1'; then
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_cputype=x86_64
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fi
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fi
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if [ "$_ostype" = SunOS ]; then
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# Both Solaris and illumos presently announce as "SunOS" in "uname -s"
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# so use "uname -o" to disambiguate. We use the full path to the
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# system uname in case the user has coreutils uname first in PATH,
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# which has historically sometimes printed the wrong value here.
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if [ "$(/usr/bin/uname -o)" = illumos ]; then
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_ostype=illumos
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fi
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# illumos systems have multi-arch userlands, and "uname -m" reports the
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# machine hardware name; e.g., "i86pc" on both 32- and 64-bit x86
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# systems. Check for the native (widest) instruction set on the
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# running kernel:
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if [ "$_cputype" = i86pc ]; then
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_cputype="$(isainfo -n)"
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fi
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fi
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case "$_ostype" in
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Android)
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_ostype=linux-android
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;;
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Linux)
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check_proc
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_ostype=unknown-linux-$_clibtype
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_bitness=$(get_bitness)
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;;
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FreeBSD)
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_ostype=unknown-freebsd
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;;
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NetBSD)
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_ostype=unknown-netbsd
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;;
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DragonFly)
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_ostype=unknown-dragonfly
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;;
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Darwin)
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_ostype=apple-darwin
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;;
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illumos)
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_ostype=unknown-illumos
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;;
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MINGW* | MSYS* | CYGWIN* | Windows_NT)
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_ostype=pc-windows-gnu
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;;
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*)
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err "unrecognized OS type: $_ostype"
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;;
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esac
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case "$_cputype" in
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i386 | i486 | i686 | i786 | x86)
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_cputype=i686
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;;
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xscale | arm)
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_cputype=arm
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if [ "$_ostype" = "linux-android" ]; then
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_ostype=linux-androideabi
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fi
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;;
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armv6l)
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_cputype=arm
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if [ "$_ostype" = "linux-android" ]; then
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_ostype=linux-androideabi
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else
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_ostype="${_ostype}eabihf"
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fi
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;;
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armv7l | armv8l)
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_cputype=armv7
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if [ "$_ostype" = "linux-android" ]; then
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_ostype=linux-androideabi
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else
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_ostype="${_ostype}eabihf"
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fi
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;;
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aarch64 | arm64)
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_cputype=aarch64
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;;
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x86_64 | x86-64 | x64 | amd64)
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_cputype=x86_64
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;;
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mips)
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_cputype=$(get_endianness mips '' el)
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;;
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mips64)
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if [ "$_bitness" -eq 64 ]; then
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# only n64 ABI is supported for now
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_ostype="${_ostype}abi64"
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_cputype=$(get_endianness mips64 '' el)
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fi
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;;
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ppc)
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_cputype=powerpc
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;;
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ppc64)
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_cputype=powerpc64
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;;
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ppc64le)
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_cputype=powerpc64le
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;;
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s390x)
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_cputype=s390x
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;;
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riscv64)
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_cputype=riscv64gc
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;;
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*)
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err "unknown CPU type: $_cputype"
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esac
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# Detect 64-bit linux with 32-bit userland
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if [ "${_ostype}" = unknown-linux-gnu ] && [ "${_bitness}" -eq 32 ]; then
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case $_cputype in
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x86_64)
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if [ -n "${RUSTUP_CPUTYPE:-}" ]; then
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_cputype="$RUSTUP_CPUTYPE"
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else {
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# 32-bit executable for amd64 = x32
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if is_host_amd64_elf; then {
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echo "This host is running an x32 userland; as it stands, x32 support is poor," 1>&2
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echo "and there isn't a native toolchain -- you will have to install" 1>&2
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echo "multiarch compatibility with i686 and/or amd64, then select one" 1>&2
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echo "by re-running this script with the RUSTUP_CPUTYPE environment variable" 1>&2
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echo "set to i686 or x86_64, respectively." 1>&2
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echo 1>&2
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echo "You will be able to add an x32 target after installation by running" 1>&2
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echo " rustup target add x86_64-unknown-linux-gnux32" 1>&2
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exit 1
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}; else
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_cputype=i686
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fi
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}; fi
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;;
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mips64)
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_cputype=$(get_endianness mips '' el)
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;;
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powerpc64)
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_cputype=powerpc
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;;
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aarch64)
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_cputype=armv7
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if [ "$_ostype" = "linux-android" ]; then
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_ostype=linux-androideabi
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else
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_ostype="${_ostype}eabihf"
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fi
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;;
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riscv64gc)
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err "riscv64 with 32-bit userland unsupported"
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;;
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esac
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fi
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# Detect armv7 but without the CPU features Rust needs in that build,
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# and fall back to arm.
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# See https://github.com/rust-lang/rustup.rs/issues/587.
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if [ "$_ostype" = "unknown-linux-gnueabihf" ] && [ "$_cputype" = armv7 ]; then
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if ensure grep '^Features' /proc/cpuinfo | grep -q -v neon; then
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# At least one processor does not have NEON.
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_cputype=arm
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fi
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fi
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_arch="${_cputype}-${_ostype}"
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RETVAL="$_arch"
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}
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check_proc() {
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# Check for /proc by looking for the /proc/self/exe link
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# This is only run on Linux
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if ! test -L /proc/self/exe ; then
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err "fatal: Unable to find /proc/self/exe. Is /proc mounted? Installation cannot proceed without /proc."
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fi
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}
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get_bitness() {
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need_cmd head
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# Architecture detection without dependencies beyond coreutils.
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# ELF files start out "\x7fELF", and the following byte is
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# 0x01 for 32-bit and
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# 0x02 for 64-bit.
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# The printf builtin on some shells like dash only supports octal
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# escape sequences, so we use those.
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local _current_exe_head
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_current_exe_head=$(head -c 5 /proc/self/exe )
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if [ "$_current_exe_head" = "$(printf '\177ELF\001')" ]; then
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echo 32
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elif [ "$_current_exe_head" = "$(printf '\177ELF\002')" ]; then
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echo 64
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else
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err "unknown platform bitness"
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fi
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}
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is_host_amd64_elf() {
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need_cmd head
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need_cmd tail
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# ELF e_machine detection without dependencies beyond coreutils.
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# Two-byte field at offset 0x12 indicates the CPU,
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# but we're interested in it being 0x3E to indicate amd64, or not that.
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local _current_exe_machine
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_current_exe_machine=$(head -c 19 /proc/self/exe | tail -c 1)
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[ "$_current_exe_machine" = "$(printf '\076')" ]
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}
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get_endianness() {
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local cputype=$1
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local suffix_eb=$2
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local suffix_el=$3
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# detect endianness without od/hexdump, like get_bitness() does.
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need_cmd head
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need_cmd tail
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local _current_exe_endianness
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_current_exe_endianness="$(head -c 6 /proc/self/exe | tail -c 1)"
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if [ "$_current_exe_endianness" = "$(printf '\001')" ]; then
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echo "${cputype}${suffix_el}"
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|
elif [ "$_current_exe_endianness" = "$(printf '\002')" ]; then
|
|
echo "${cputype}${suffix_eb}"
|
|
else
|
|
err "unknown platform endianness"
|
|
fi
|
|
}
|
|
|
|
say() {
|
|
printf 'stalwart-smtp: %s\n' "$1"
|
|
}
|
|
|
|
err() {
|
|
say "$1" >&2
|
|
exit 1
|
|
}
|
|
|
|
need_cmd() {
|
|
if ! check_cmd "$1"; then
|
|
err "need '$1' (command not found)"
|
|
fi
|
|
}
|
|
|
|
check_cmd() {
|
|
command -v "$1" > /dev/null 2>&1
|
|
}
|
|
|
|
assert_nz() {
|
|
if [ -z "$1" ]; then err "assert_nz $2"; fi
|
|
}
|
|
|
|
# Run a command that should never fail. If the command fails execution
|
|
# will immediately terminate with an error showing the failing
|
|
# command.
|
|
ensure() {
|
|
if ! "$@"; then err "command failed: $*"; fi
|
|
}
|
|
|
|
# This wraps curl or wget. Try curl first, if not installed,
|
|
# use wget instead.
|
|
downloader() {
|
|
local _dld
|
|
local _ciphersuites
|
|
local _err
|
|
local _status
|
|
local _retry
|
|
if check_cmd curl; then
|
|
_dld=curl
|
|
elif check_cmd wget; then
|
|
_dld=wget
|
|
else
|
|
_dld='curl or wget' # to be used in error message of need_cmd
|
|
fi
|
|
|
|
if [ "$1" = --check ]; then
|
|
need_cmd "$_dld"
|
|
elif [ "$_dld" = curl ]; then
|
|
check_curl_for_retry_support
|
|
_retry="$RETVAL"
|
|
get_ciphersuites_for_curl
|
|
_ciphersuites="$RETVAL"
|
|
if [ -n "$_ciphersuites" ]; then
|
|
_err=$(curl $_retry --proto '=https' --tlsv1.2 --ciphers "$_ciphersuites" --silent --show-error --fail --location "$1" --output "$2" 2>&1)
|
|
_status=$?
|
|
else
|
|
echo "Warning: Not enforcing strong cipher suites for TLS, this is potentially less secure"
|
|
if ! check_help_for "$3" curl --proto --tlsv1.2; then
|
|
echo "Warning: Not enforcing TLS v1.2, this is potentially less secure"
|
|
_err=$(curl $_retry --silent --show-error --fail --location "$1" --output "$2" 2>&1)
|
|
_status=$?
|
|
else
|
|
_err=$(curl $_retry --proto '=https' --tlsv1.2 --silent --show-error --fail --location "$1" --output "$2" 2>&1)
|
|
_status=$?
|
|
fi
|
|
fi
|
|
if [ -n "$_err" ]; then
|
|
if echo "$_err" | grep -q 404; then
|
|
err "❌ Binary for platform '$3' not found, this platform may be unsupported."
|
|
else
|
|
echo "$_err" >&2
|
|
fi
|
|
fi
|
|
return $_status
|
|
elif [ "$_dld" = wget ]; then
|
|
if [ "$(wget -V 2>&1|head -2|tail -1|cut -f1 -d" ")" = "BusyBox" ]; then
|
|
echo "Warning: using the BusyBox version of wget. Not enforcing strong cipher suites for TLS or TLS v1.2, this is potentially less secure"
|
|
_err=$(wget "$1" -O "$2" 2>&1)
|
|
_status=$?
|
|
else
|
|
get_ciphersuites_for_wget
|
|
_ciphersuites="$RETVAL"
|
|
if [ -n "$_ciphersuites" ]; then
|
|
_err=$(wget --https-only --secure-protocol=TLSv1_2 --ciphers "$_ciphersuites" "$1" -O "$2" 2>&1)
|
|
_status=$?
|
|
else
|
|
echo "Warning: Not enforcing strong cipher suites for TLS, this is potentially less secure"
|
|
if ! check_help_for "$3" wget --https-only --secure-protocol; then
|
|
echo "Warning: Not enforcing TLS v1.2, this is potentially less secure"
|
|
_err=$(wget "$1" -O "$2" 2>&1)
|
|
_status=$?
|
|
else
|
|
_err=$(wget --https-only --secure-protocol=TLSv1_2 "$1" -O "$2" 2>&1)
|
|
_status=$?
|
|
fi
|
|
fi
|
|
fi
|
|
if [ -n "$_err" ]; then
|
|
if echo "$_err" | grep -q ' 404 Not Found'; then
|
|
err "❌ Binary for platform '$3' not found, this platform may be unsupported."
|
|
else
|
|
echo "$_err" >&2
|
|
fi
|
|
fi
|
|
return $_status
|
|
else
|
|
err "Unknown downloader" # should not reach here
|
|
fi
|
|
}
|
|
|
|
# Check if curl supports the --retry flag, then pass it to the curl invocation.
|
|
check_curl_for_retry_support() {
|
|
local _retry_supported=""
|
|
# "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
|
|
if check_help_for "notspecified" "curl" "--retry"; then
|
|
_retry_supported="--retry 3"
|
|
fi
|
|
|
|
RETVAL="$_retry_supported"
|
|
|
|
}
|
|
|
|
check_help_for() {
|
|
local _arch
|
|
local _cmd
|
|
local _arg
|
|
_arch="$1"
|
|
shift
|
|
_cmd="$1"
|
|
shift
|
|
|
|
local _category
|
|
if "$_cmd" --help | grep -q 'For all options use the manual or "--help all".'; then
|
|
_category="all"
|
|
else
|
|
_category=""
|
|
fi
|
|
|
|
case "$_arch" in
|
|
|
|
*darwin*)
|
|
if check_cmd sw_vers; then
|
|
case $(sw_vers -productVersion) in
|
|
10.*)
|
|
# If we're running on macOS, older than 10.13, then we always
|
|
# fail to find these options to force fallback
|
|
if [ "$(sw_vers -productVersion | cut -d. -f2)" -lt 13 ]; then
|
|
# Older than 10.13
|
|
echo "Warning: Detected macOS platform older than 10.13"
|
|
return 1
|
|
fi
|
|
;;
|
|
11.*)
|
|
# We assume Big Sur will be OK for now
|
|
;;
|
|
*)
|
|
# Unknown product version, warn and continue
|
|
echo "Warning: Detected unknown macOS major version: $(sw_vers -productVersion)"
|
|
echo "Warning TLS capabilities detection may fail"
|
|
;;
|
|
esac
|
|
fi
|
|
;;
|
|
|
|
esac
|
|
|
|
for _arg in "$@"; do
|
|
if ! "$_cmd" --help $_category | grep -q -- "$_arg"; then
|
|
return 1
|
|
fi
|
|
done
|
|
|
|
true # not strictly needed
|
|
}
|
|
|
|
# Return cipher suite string specified by user, otherwise return strong TLS 1.2-1.3 cipher suites
|
|
# if support by local tools is detected. Detection currently supports these curl backends:
|
|
# GnuTLS and OpenSSL (possibly also LibreSSL and BoringSSL). Return value can be empty.
|
|
get_ciphersuites_for_curl() {
|
|
if [ -n "${RUSTUP_TLS_CIPHERSUITES-}" ]; then
|
|
# user specified custom cipher suites, assume they know what they're doing
|
|
RETVAL="$RUSTUP_TLS_CIPHERSUITES"
|
|
return
|
|
fi
|
|
|
|
local _openssl_syntax="no"
|
|
local _gnutls_syntax="no"
|
|
local _backend_supported="yes"
|
|
if curl -V | grep -q ' OpenSSL/'; then
|
|
_openssl_syntax="yes"
|
|
elif curl -V | grep -iq ' LibreSSL/'; then
|
|
_openssl_syntax="yes"
|
|
elif curl -V | grep -iq ' BoringSSL/'; then
|
|
_openssl_syntax="yes"
|
|
elif curl -V | grep -iq ' GnuTLS/'; then
|
|
_gnutls_syntax="yes"
|
|
else
|
|
_backend_supported="no"
|
|
fi
|
|
|
|
local _args_supported="no"
|
|
if [ "$_backend_supported" = "yes" ]; then
|
|
# "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
|
|
if check_help_for "notspecified" "curl" "--tlsv1.2" "--ciphers" "--proto"; then
|
|
_args_supported="yes"
|
|
fi
|
|
fi
|
|
|
|
local _cs=""
|
|
if [ "$_args_supported" = "yes" ]; then
|
|
if [ "$_openssl_syntax" = "yes" ]; then
|
|
_cs=$(get_strong_ciphersuites_for "openssl")
|
|
elif [ "$_gnutls_syntax" = "yes" ]; then
|
|
_cs=$(get_strong_ciphersuites_for "gnutls")
|
|
fi
|
|
fi
|
|
|
|
RETVAL="$_cs"
|
|
}
|
|
|
|
# Return cipher suite string specified by user, otherwise return strong TLS 1.2-1.3 cipher suites
|
|
# if support by local tools is detected. Detection currently supports these wget backends:
|
|
# GnuTLS and OpenSSL (possibly also LibreSSL and BoringSSL). Return value can be empty.
|
|
get_ciphersuites_for_wget() {
|
|
if [ -n "${RUSTUP_TLS_CIPHERSUITES-}" ]; then
|
|
# user specified custom cipher suites, assume they know what they're doing
|
|
RETVAL="$RUSTUP_TLS_CIPHERSUITES"
|
|
return
|
|
fi
|
|
|
|
local _cs=""
|
|
if wget -V | grep -q '\-DHAVE_LIBSSL'; then
|
|
# "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
|
|
if check_help_for "notspecified" "wget" "TLSv1_2" "--ciphers" "--https-only" "--secure-protocol"; then
|
|
_cs=$(get_strong_ciphersuites_for "openssl")
|
|
fi
|
|
elif wget -V | grep -q '\-DHAVE_LIBGNUTLS'; then
|
|
# "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
|
|
if check_help_for "notspecified" "wget" "TLSv1_2" "--ciphers" "--https-only" "--secure-protocol"; then
|
|
_cs=$(get_strong_ciphersuites_for "gnutls")
|
|
fi
|
|
fi
|
|
|
|
RETVAL="$_cs"
|
|
}
|
|
|
|
# Return strong TLS 1.2-1.3 cipher suites in OpenSSL or GnuTLS syntax. TLS 1.2
|
|
# excludes non-ECDHE and non-AEAD cipher suites. DHE is excluded due to bad
|
|
# DH params often found on servers (see RFC 7919). Sequence matches or is
|
|
# similar to Firefox 68 ESR with weak cipher suites disabled via about:config.
|
|
# $1 must be openssl or gnutls.
|
|
get_strong_ciphersuites_for() {
|
|
if [ "$1" = "openssl" ]; then
|
|
# OpenSSL is forgiving of unknown values, no problems with TLS 1.3 values on versions that don't support it yet.
|
|
echo "TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384"
|
|
elif [ "$1" = "gnutls" ]; then
|
|
# GnuTLS isn't forgiving of unknown values, so this may require a GnuTLS version that supports TLS 1.3 even if wget doesn't.
|
|
# Begin with SECURE128 (and higher) then remove/add to build cipher suites. Produces same 9 cipher suites as OpenSSL but in slightly different order.
|
|
echo "SECURE128:-VERS-SSL3.0:-VERS-TLS1.0:-VERS-TLS1.1:-VERS-DTLS-ALL:-CIPHER-ALL:-MAC-ALL:-KX-ALL:+AEAD:+ECDHE-ECDSA:+ECDHE-RSA:+AES-128-GCM:+CHACHA20-POLY1305:+AES-256-GCM"
|
|
fi
|
|
}
|
|
|
|
# This is just for indicating that commands' results are being
|
|
# intentionally ignored. Usually, because it's being executed
|
|
# as part of error handling.
|
|
ignore() {
|
|
"$@"
|
|
}
|
|
|
|
main "$@" || exit 1
|