#!/usr/bin/env sh
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#Support local mail app
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#MAIL_BIN="sendmail"
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#MAIL_FROM="yyyy@gmail.com"
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#MAIL_TO="yyyy@gmail.com"
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#MAIL_NOVALIDATE=""
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#MAIL_MSMTP_ACCOUNT=""
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mail_send() {
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_subject="$1"
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_content="$2"
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_statusCode="$3" #0: success, 1: error 2($RENEW_SKIP): skipped
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_debug "_subject" "$_subject"
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_debug "_content" "$_content"
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_debug "_statusCode" "$_statusCode"
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MAIL_NOVALIDATE="${MAIL_NOVALIDATE:-$(_readaccountconf_mutable MAIL_NOVALIDATE)}"
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if [ -n "$MAIL_NOVALIDATE" ]; then
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_saveaccountconf_mutable MAIL_NOVALIDATE 1
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else
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_clearaccountconf "MAIL_NOVALIDATE"
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fi
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MAIL_BIN="${MAIL_BIN:-$(_readaccountconf_mutable MAIL_BIN)}"
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if [ -n "$MAIL_BIN" ] && ! _exists "$MAIL_BIN"; then
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_err "It seems that the command $MAIL_BIN is not in path."
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return 1
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fi
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_MAIL_BIN=$(_mail_bin)
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if [ -n "$MAIL_BIN" ]; then
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_saveaccountconf_mutable MAIL_BIN "$MAIL_BIN"
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else
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_clearaccountconf "MAIL_BIN"
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fi
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MAIL_FROM="${MAIL_FROM:-$(_readaccountconf_mutable MAIL_FROM)}"
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if [ -n "$MAIL_FROM" ]; then
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if ! _mail_valid "$MAIL_FROM"; then
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_err "It seems that the MAIL_FROM=$MAIL_FROM is not a valid email address."
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return 1
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fi
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_saveaccountconf_mutable MAIL_FROM "$MAIL_FROM"
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fi
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MAIL_TO="${MAIL_TO:-$(_readaccountconf_mutable MAIL_TO)}"
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if [ -n "$MAIL_TO" ]; then
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if ! _mail_valid "$MAIL_TO"; then
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_err "It seems that the MAIL_TO=$MAIL_TO is not a valid email address."
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return 1
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fi
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_saveaccountconf_mutable MAIL_TO "$MAIL_TO"
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else
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MAIL_TO="$(_readaccountconf ACCOUNT_EMAIL)"
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if [ -z "$MAIL_TO" ]; then
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_err "It seems that account email is empty."
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return 1
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fi
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fi
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contenttype="text/plain; charset=utf-8"
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subject="=?UTF-8?B?$(printf -- "%b" "$_subject" | _base64)?="
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result=$({ _mail_body | eval "$(_mail_cmnd)"; } 2>&1)
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# shellcheck disable=SC2181
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if [ $? -ne 0 ]; then
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_debug "mail send error."
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_err "$result"
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return 1
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fi
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_debug "mail send success."
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return 0
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}
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_mail_bin() {
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_MAIL_BIN=""
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for b in $MAIL_BIN sendmail ssmtp mutt mail msmtp; do
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if _exists "$b"; then
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_MAIL_BIN="$b"
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break
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fi
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done
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if [ -z "$_MAIL_BIN" ]; then
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_err "Please install sendmail, ssmtp, mutt, mail or msmtp first."
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return 1
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fi
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echo "$_MAIL_BIN"
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}
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_mail_cmnd() {
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_MAIL_ARGS=""
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case $(basename "$_MAIL_BIN") in
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sendmail)
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if [ -n "$MAIL_FROM" ]; then
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_MAIL_ARGS="-f '$MAIL_FROM'"
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fi
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;;
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mutt | mail)
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_MAIL_ARGS="-s '$_subject'"
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;;
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msmtp)
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if [ -n "$MAIL_FROM" ]; then
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_MAIL_ARGS="-f '$MAIL_FROM'"
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fi
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if [ -n "$MAIL_MSMTP_ACCOUNT" ]; then
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_MAIL_ARGS="$_MAIL_ARGS -a '$MAIL_MSMTP_ACCOUNT'"
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fi
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;;
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*) ;;
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esac
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echo "'$_MAIL_BIN' $_MAIL_ARGS '$MAIL_TO'"
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}
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_mail_body() {
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case $(basename "$_MAIL_BIN") in
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sendmail | ssmtp | msmtp)
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if [ -n "$MAIL_FROM" ]; then
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echo "From: $MAIL_FROM"
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fi
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echo "To: $MAIL_TO"
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echo "Subject: $subject"
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echo "Content-Type: $contenttype"
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echo "MIME-Version: 1.0"
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echo
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;;
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esac
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echo "$_content"
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}
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_mail_valid() {
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[ -n "$MAIL_NOVALIDATE" ] || _contains "$1" "@"
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}
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