acme.sh/le.sh

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#!/bin/bash
WORKING_DIR=~/.le
CURL_HEADER=""
HEADER=""
HEADERPLACE=""
ACCOUNT_EMAIL=""
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DEFAULT_CA="https://acme-v01.api.letsencrypt.org"
API=$DEFAULT_CA
_debug() {
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if [ -z "$DEBUG" ] ; then
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return
fi
if [ -z "$2" ] ; then
echo $1
else
echo $1:$2
fi
}
_info() {
if [ -z "$2" ] ; then
echo $1
else
echo $1:$2
fi
}
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_err() {
if [ -z "$2" ] ; then
echo "$1" >&2
else
echo "$1:$2" >&2
fi
}
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#domain [2048]
createAccountKey() {
if [ -z "$1" ] ; then
echo Usage: $0 account-domain [2048]
return
fi
account=$1
length=$2
if [ -z "$2" ] ; then
echo Use default length 2048
length=2048
fi
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_initpath
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mkdir -p $WORKING_DIR
ACCOUNT_KEY_PATH=$WORKING_DIR/account.acc
if [ -f "$ACCOUNT_KEY_PATH" ] ; then
echo account key exists, skip
return
else
#generate account key
openssl genrsa $length > $ACCOUNT_KEY_PATH
fi
}
#domain length
createDomainKey() {
if [ -z "$1" ] ; then
echo Usage: $0 domain [2048]
return
fi
domain=$1
length=$2
if [ -z "$2" ] ; then
echo Use default length 2048
length=2048
fi
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_initpath $domain
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mkdir -p $WORKING_DIR/$domain
CERT_KEY_PATH=$WORKING_DIR/$domain/$domain.key
if [ -f "$CERT_KEY_PATH" ] ; then
echo domain key exists, skip
else
#generate account key
openssl genrsa $length > $CERT_KEY_PATH
fi
}
# domain domainlist
createCSR() {
if [ -z "$1" ] ; then
echo Usage: $0 domain [domainlist]
return
fi
domain=$1
_initpath $domain
domainlist=$2
if [ -f $CSR_PATH ] ; then
echo CSR exists, skip
return
fi
if [ -z "$domainlist" ] ; then
#single domain
echo single domain
openssl req -new -sha256 -key $CERT_KEY_PATH -subj "/CN=$domain" > $CSR_PATH
else
alt=DNS:$(echo $domainlist | sed "s/,/,DNS:/g")
#multi
echo multi domain $alt
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openssl req -new -sha256 -key $CERT_KEY_PATH -subj "/CN=$domain" -reqexts SAN -config <(printf "[ req_distinguished_name ]\n[ req ]\ndistinguished_name = req_distinguished_name\n[SAN]\nsubjectAltName=$alt") -out $CSR_PATH
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fi
}
_b64() {
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__n=$(cat)
echo $__n | tr '/+' '_-' | tr -d '= '
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}
_send_signed_request() {
url=$1
payload=$2
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needbase64=$3
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_debug url $url
_debug payload "$payload"
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CURL_HEADER="$WORKING_DIR/curl.header"
dp="$WORKING_DIR/curl.dump"
CURL="curl --silent --dump-header $CURL_HEADER "
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if [ "$DEBUG" ] ; then
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CURL="$CURL --trace-ascii $dp "
fi
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payload64=$(echo -n $payload | base64 -w 0 | _b64)
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_debug payload64 $payload64
nonceurl="$API/directory"
nonce=$($CURL -I $nonceurl | grep "^Replay-Nonce:" | sed s/\\r//|sed s/\\n//| cut -d ' ' -f 2)
_debug nonce $nonce
protected=$(echo -n "$HEADERPLACE" | sed "s/NONCE/$nonce/" )
_debug protected "$protected"
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protected64=$( echo -n $protected | base64 -w 0 | _b64)
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_debug protected64 "$protected64"
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sig=$(echo -n "$protected64.$payload64" | openssl dgst -sha256 -sign $ACCOUNT_KEY_PATH | base64 -w 0 | _b64)
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_debug sig "$sig"
body="{\"header\": $HEADER, \"protected\": \"$protected64\", \"payload\": \"$payload64\", \"signature\": \"$sig\"}"
_debug body "$body"
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if [ "$needbase64" ] ; then
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response="$($CURL -X POST --data "$body" $url | base64 -w 0)"
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else
response="$($CURL -X POST --data "$body" $url)"
fi
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responseHeaders="$(sed 's/\r//g' $CURL_HEADER)"
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_debug responseHeaders "$responseHeaders"
_debug response "$response"
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code="$(grep ^HTTP $CURL_HEADER | tail -1 | cut -d " " -f 2)"
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_debug code $code
}
_get() {
url="$1"
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_debug url $url
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response="$(curl --silent $url)"
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ret=$?
_debug response "$response"
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code="$(echo $response | grep -o '"status":[0-9]\+' | cut -d : -f 2)"
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_debug code $code
return $ret
}
#setopt "file" "opt" "=" "value" [";"]
_setopt() {
__conf="$1"
__opt="$2"
__sep="$3"
__val="$4"
__end="$5"
if [ -z "$__opt" ] ; then
echo usage: $0 '"file" "opt" "=" "value" [";"]'
return
fi
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if [ ! -f $__conf ] ; then
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touch $__conf
fi
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if grep -H -n "^$__opt$__sep" $__conf > /dev/null ; then
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_debug OK
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sed -i "s|^$__opt$__sep.*$|$__opt$__sep$__val$__end|" $__conf
else
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_debug APP
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echo "$__opt$__sep$__val$__end" >> $__conf
fi
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_debug "$(grep -H -n "^$__opt$__sep" $__conf)"
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}
_initpath() {
WORKING_DIR=~/.le
domain=$1
mkdir -p $WORKING_DIR
ACCOUNT_KEY_PATH=$WORKING_DIR/account.acc
if [ -z "$domain" ] ; then
return 0
fi
mkdir -p $WORKING_DIR/$domain
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CSR_PATH=$WORKING_DIR/$domain/$domain.csr
CERT_KEY_PATH=$WORKING_DIR/$domain/$domain.key
CERT_PATH=$WORKING_DIR/$domain/$domain.cer
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CA_CERT_PATH=$WORKING_DIR/$domain/ca.cer
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}
#issue webroot a.com [www.a.com,b.com,c.com] [key-length] [cert-file-path] [key-file-path] [reloadCmd]
issue() {
if [ -z "$1" ] ; then
echo "Usage: $0 webroot a.com [www.a.com,b.com,c.com] [key-length] [cert-file-path] [key-file-path] [reloadCmd]"
return 1
fi
Le_Webroot=$1
Le_Domain=$2
Le_Alt=$3
Le_Keylength=$4
if [ -z "$Le_Domain" ] ; then
Le_Domain="$1"
fi
_initpath $Le_Domain
DOMAIN_CONF=$WORKING_DIR/$Le_Domain/$Le_Domain.conf
if [ -f "$DOMAIN_CONF" ] ; then
source "$DOMAIN_CONF"
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if [ -z "$FORCE" ] && [ "$Le_NextRenewTime" ] && [ "$(date -u "+%s" )" -lt "$Le_NextRenewTime" ] ; then
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_info "Skip, Next renwal time is: $Le_NextRenewTimeStr"
return 2
fi
fi
if [ -z "$Le_Webroot" ] ; then
echo Usage: $0 webroot a.com [b.com,c.com] [key-length]
return 1
fi
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createAccountKey $Le_Domain $Le_Keylength
createDomainKey $Le_Domain $Le_Keylength
createCSR $Le_Domain $Le_Alt
pub_exp=$(openssl rsa -in $ACCOUNT_KEY_PATH -noout -text | grep "^publicExponent:"| cut -d '(' -f 2 | cut -d 'x' -f 2 | cut -d ')' -f 1)
if [ "${#pub_exp}" == "5" ] ; then
pub_exp=0$pub_exp
fi
_debug pub_exp "$pub_exp"
e=$(echo $pub_exp | xxd -r -p | base64)
_debug e "$e"
modulus=$(openssl rsa -in $ACCOUNT_KEY_PATH -modulus -noout | cut -d '=' -f 2 )
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n=$(echo $modulus| xxd -r -p | base64 -w 0 | _b64 )
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jwk='{"e": "'$e'", "kty": "RSA", "n": "'$n'"}'
HEADER='{"alg": "RS256", "jwk": '$jwk'}'
HEADERPLACE='{"nonce": "NONCE", "alg": "RS256", "jwk": '$jwk'}'
_debug HEADER "$HEADER"
accountkey_json=$(echo -n "$jwk" | sed "s/ //g")
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thumbprint=$(echo -n "$accountkey_json" | sha256sum | xxd -r -p | base64 -w 0 | _b64)
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_info "Registering account"
regjson='{"resource": "new-reg", "agreement": "https://letsencrypt.org/documents/LE-SA-v1.0.1-July-27-2015.pdf"}'
if [ "$ACCOUNT_EMAIL" ] ; then
regjson='{"resource": "new-reg", "contact": ["mailto: '$ACCOUNT_EMAIL'"], "agreement": "https://letsencrypt.org/documents/LE-SA-v1.0.1-July-27-2015.pdf"}'
fi
_send_signed_request "$API/acme/new-reg" "$regjson"
if [ "$code" == "" ] || [ "$code" == '201' ] ; then
_info "Registered"
echo $response > $WORKING_DIR/account.json
elif [ "$code" == '409' ] ; then
_info "Already registered"
else
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_err "Register account Error."
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return 1
fi
# verify each domain
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_info "Verify each domain"
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alldomains=$(echo "$Le_Domain,$Le_Alt" | sed "s/,/ /g")
for d in $alldomains
do
_info "Verifing domain $d"
_send_signed_request "$API/acme/new-authz" "{\"resource\": \"new-authz\", \"identifier\": {\"type\": \"dns\", \"value\": \"$d\"}}"
if [ ! -z "$code" ] && [ ! "$code" == '201' ] ; then
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_err "new-authz error: $response"
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return 1
fi
http01=$(echo $response | egrep -o '{[^{]*"type":"http-01"[^}]*')
_debug http01 "$http01"
token=$(echo "$http01" | sed 's/,/\n'/g| grep '"token":'| cut -d : -f 2|sed 's/"//g')
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_debug token $token
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uri=$(echo "$http01" | sed 's/,/\n'/g| grep '"uri":'| cut -d : -f 2,3|sed 's/"//g')
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_debug uri $uri
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keyauthorization="$token.$thumbprint"
_debug keyauthorization "$keyauthorization"
wellknown_path="$Le_Webroot/.well-known/acme-challenge"
_debug wellknown_path "$wellknown_path"
mkdir -p "$wellknown_path"
wellknown_path="$wellknown_path/$token"
echo -n "$keyauthorization" > $wellknown_path
wellknown_url="http://$d/.well-known/acme-challenge/$token"
_debug wellknown_url "$wellknown_url"
_debug challenge "$challenge"
_send_signed_request $uri "{\"resource\": \"challenge\", \"keyAuthorization\": \"$keyauthorization\"}"
if [ ! -z "$code" ] && [ ! "$code" == '202' ] ; then
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_err "challenge error: $d"
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return 1
fi
while [ "1" ] ; do
_debug "sleep 5 secs to verify"
sleep 5
_debug "checking"
if ! _get $uri ; then
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_err "Verify error:$resource"
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return 1
fi
status=$(echo $response | egrep -o '"status":"[^"]+"' | cut -d : -f 2 | sed 's/"//g')
if [ "$status" == "valid" ] ; then
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_info "Verify success:$d"
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break;
fi
if [ "$status" == "invalid" ] ; then
error=$(echo $response | egrep -o '"error":{[^}]*}' | grep -o '"detail":"[^"]*"' | cut -d '"' -f 4)
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_err "Verify error:$error"
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return 1;
fi
if [ "$status" == "pending" ] ; then
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_info "Verify pending:$d"
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else
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_err "Verify error:$response"
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return 1
fi
done
done
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_info "Verify finished, start to sign."
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der="$(openssl req -in $CSR_PATH -outform DER | base64 -w 0 | _b64)"
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_send_signed_request "$API/acme/new-cert" "{\"resource\": \"new-cert\", \"csr\": \"$der\"}" "needbase64"
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Le_LinkCert="$(grep -i -o '^Location.*' $CURL_HEADER |sed 's/\r//g'| cut -d " " -f 2)"
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_setopt $DOMAIN_CONF "Le_LinkCert" "=" "$Le_LinkCert"
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if [ "$Le_LinkCert" ] ; then
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echo -----BEGIN CERTIFICATE----- > $CERT_PATH
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curl --silent $Le_LinkCert | base64 >> $CERT_PATH
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echo -----END CERTIFICATE----- >> $CERT_PATH
_info "Cert success."
cat $CERT_PATH
_info "Your cert is in $CERT_PATH"
fi
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_setopt $DOMAIN_CONF "Le_Domain" "=" "$Le_Domain"
_setopt $DOMAIN_CONF "Le_Alt" "=" "$Le_Alt"
_setopt $DOMAIN_CONF "Le_Webroot" "=" "$Le_Webroot"
_setopt $DOMAIN_CONF "Le_Keylength" "=" "$Le_Keylength"
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if [ -z "$Le_LinkCert" ] ; then
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response="$(echo $response | base64 -d)"
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_info "Sign failed: $(echo "$response" | grep -o '"detail":"[^"]*"')"
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return 1
fi
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Le_LinkIssuer=$(grep -i '^Link' $CURL_HEADER | cut -d " " -f 2| cut -d ';' -f 1 | sed 's/<//g' | sed 's/>//g')
_setopt $DOMAIN_CONF "Le_LinkIssuer" "=" "$Le_LinkIssuer"
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if [ "$Le_LinkIssuer" ] ; then
echo -----BEGIN CERTIFICATE----- > $CA_CERT_PATH
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curl --silent $Le_LinkIssuer | base64 >> $CA_CERT_PATH
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echo -----END CERTIFICATE----- >> $CA_CERT_PATH
_info "The intermediate CA cert is in $CA_CERT_PATH"
fi
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Le_CertCreateTime=$(date -u "+%s")
_setopt $DOMAIN_CONF "Le_CertCreateTime" "=" "$Le_CertCreateTime"
Le_CertCreateTimeStr=$(date -u "+%Y-%m-%d %H:%M:%S UTC")
_setopt $DOMAIN_CONF "Le_CertCreateTimeStr" "=" "\"$Le_CertCreateTimeStr\""
if [ ! "$Le_RenewalDays" ] ; then
Le_RenewalDays=50
fi
_setopt $DOMAIN_CONF "Le_RenewalDays" "=" "$Le_RenewalDays"
Le_NextRenewTime=$(date -u -d "+$Le_RenewalDays day" "+%s")
_setopt $DOMAIN_CONF "Le_NextRenewTime" "=" "$Le_NextRenewTime"
Le_NextRenewTimeStr=$(date -u -d "+$Le_RenewalDays day" "+%Y-%m-%d %H:%M:%S UTC")
_setopt $DOMAIN_CONF "Le_NextRenewTimeStr" "=" "\"$Le_NextRenewTimeStr\""
_setopt $DOMAIN_CONF "Le_RealCertPath" "=" "\"$Le_RealCertPath\""
if [ "$Le_RealCertPath" ] ; then
if [ -f "$Le_RealCertPath" ] ; then
rm -f $Le_RealCertPath
fi
ln -s $CERT_PATH $Le_RealCertPath
fi
_setopt $DOMAIN_CONF "Le_RealKeyPath" "=" "\"$Le_RealKeyPath\""
if [ "$Le_RealKeyPath" ] ; then
if [ -f "$Le_RealKeyPath" ] ; then
rm -f $Le_RealKeyPath
fi
ln -s $CERT_KEY_PATH $Le_RealKeyPath
fi
_setopt $DOMAIN_CONF "Le_ReloadCmd" "=" "\"$Le_ReloadCmd\""
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if [ "$Le_ReloadCmd" ] ; then
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_info "Run Le_ReloadCmd: $Le_ReloadCmd"
$Le_ReloadCmd
fi
}
renew() {
Le_Domain="$1"
if [ -z "$Le_Domain" ] ; then
echo Usage: $0 domain.com
return 1
fi
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issue $Le_Domain
}
renewAll() {
_info "renewAll"
for d in $(ls -F $WORKING_DIR | grep '/$') ; do
d=$(echo $d | cut -d '/' -f 1)
_info "renew $d"
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Le_LinkCert=""
Le_Domain=""
Le_Alt=""
Le_Webroot=""
Le_Keylength=""
Le_LinkIssuer=""
Le_CertCreateTime=""
Le_CertCreateTimeStr=""
Le_RenewalDays=""
Le_NextRenewTime=""
Le_NextRenewTimeStr=""
Le_RealCertPath=""
Le_RealKeyPath=""
Le_ReloadCmd=""
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renew "$d"
done
}
install() {
_initpath
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if ! command -v "curl" > /dev/null ; then
_err "Please install curl first."
_err "Ubuntu: sudo apt-get install curl"
_err "CentOS: yum install curl"
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return 1
fi
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if ! command -v "crontab" > /dev/null ; then
_err "Please install crontab first."
_err "CentOs: yum -y install crontabs"
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return 1
fi
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if ! command -v "openssl" > /dev/null ; then
_err "Please install openssl first."
_err "CentOs: yum -y install openssl"
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return 1
fi
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if ! command -v "xxd" > /dev/null ; then
_err "Please install xxd first."
_err "CentOs: yum install vim-common"
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return 1
fi
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_info "Installing to $WORKING_DIR"
mkdir -p $WORKING_DIR/
cp le.sh $WORKING_DIR/
chmod +x $WORKING_DIR/le.sh
if [ ! -f /bin/le.sh ] ; then
ln -s $WORKING_DIR/le.sh /bin/le.sh
ln -s $WORKING_DIR/le.sh /bin/le
fi
_info "Installing cron job"
if ! crontab -l | grep 'le.sh renewAll' ; then
crontab -l | { cat; echo "0 0 * * * le.sh renewAll"; } | crontab -
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if command -v crond > /dev/null ; then
service crond reload 2>/dev/null
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else
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service cron reload 2>/dev/null
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fi
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fi
_info OK
}
uninstall() {
_initpath
_info "Removing cron job"
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if crontab -l | grep 'le.sh renewAll' ; then
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crontab -l | sed "/le.sh renewAll/d" | crontab -
if command -v crond > /dev/null ; then
service crond reload 2>/dev/null
else
service cron reload 2>/dev/null
fi
fi
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_info "Removing /bin/le.sh"
rm -f /bin/le
rm -f /bin/le.sh
_info "The keys and certs are in $WORKING_DIR, you can remove them by yourself."
}
showhelp() {
echo "Usage: issue|renew|renewAll|createAccountKey|createDomainKey|createCSR|install|uninstall"
}
if [ -z "$1" ] ; then
showhelp
fi
$1 $2 $3 $4 $5 $6 $7 $8