acme.sh/notify/mail.sh

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