first public version

le.sh

@@ -0,0 +1,561 @@
+#!/bin/bash
+
+
+WORKING_DIR=~/.le
+
+ACCOUNT_KEY_PATH=$WORKING_DIR/account.acc
+
+CERT_KEY_PATH=$WORKING_DIR/domain.key
+
+CSR_PATH=$WORKING_DIR/domain.csr
+
+CERT_PATH=$WORKING_DIR/domain.cer
+
+DOMAIN_CONF=$WORKING_DIR/domain.conf
+
+CURL_HEADER=""
+
+HEADER=""
+HEADERPLACE=""
+
+ACCOUNT_EMAIL=""
+DEFAULT_CA="https://acme-v01.api.letsencrypt.org"
+
+API=$DEFAULT_CA
+
+DEBUG=
+
+_debug() {
+  if ! [ "DEBUG" ] ; then
+    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
+}
+
+#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
+  
+  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
+
+  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
+    openssl req -new -sha256 -key $CERT_KEY_PATH -subj "/CN=$domain" -reqexts SAN -config <(cat /etc/ssl/openssl.cnf <(printf "[SAN]\nsubjectAltName=$alt")) -out $CSR_PATH
+  fi
+
+}
+
+_b64() {
+  while read __line; do
+    __n=$__n$__line
+  done;
+  __n=$(echo $__n | sed "s|/|_|g")
+  __n=$(echo $__n | sed "s| ||g")
+  __n=$(echo $__n | sed "s|+|-|g")
+  __n=$(echo $__n | sed "s|=||g")
+  echo $__n
+}
+
+_send_signed_request() {
+  url=$1
+  payload=$2
+  
+  needbas64="$3"
+  
+  _info url $url
+  _info payload "$payload"
+  
+  CURL_HEADER="$WORKING_DIR/curl.header"
+  dp="$WORKING_DIR/curl.dump"
+  CURL="curl --silent --dump-header $CURL_HEADER "
+  if [ "DEBUG" ] ; then
+    CURL="$CURL --trace-ascii $dp "
+  fi
+  payload64=$(echo -n $payload | base64 | _b64)
+  _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 "$protected"
+  
+  protected64=$( echo -n $protected | base64 | _b64)
+  _debug protected64 "$protected64"
+  
+  sig=$(echo -n "$protected64.$payload64" |  openssl   dgst   -sha256  -sign  $ACCOUNT_KEY_PATH | base64| _b64)
+  _debug sig "$sig"
+  
+  body="{\"header\": $HEADER, \"protected\": \"$protected64\", \"payload\": \"$payload64\", \"signature\": \"$sig\"}"
+  _debug body "$body"
+  
+  
+  if [ "$needbas64" ] ; then
+    response=$($CURL -X POST --data "$body" $url | base64)
+  else
+    response=$($CURL -X POST --data "$body" $url)
+  fi
+  responseHeaders="$(cat $CURL_HEADER)"
+  
+  _debug responseHeaders "$responseHeaders"
+  _debug response  "$response"
+  code=$(grep ^HTTP $CURL_HEADER | tail -1 | cut -d " " -f 2)
+  _debug code $code
+
+}
+
+_get() {
+  url="$1"
+  _info url $url
+  response=$(curl --silent $url)
+  ret=$?
+  _debug response  "$response"
+  code=$(echo $response | grep -o '"status":[0-9]\+' | cut -d : -f 2)
+  _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: $0  '"file"  "opt"  "="  "value" [";"]'
+    return
+  fi
+
+  if grep -H -n "^$__opt$__sep" $__conf ; then
+    echo OK
+    sed -i "s|^$__opt$__sep.*$|$__opt$__sep$__val$__end|" $__conf 
+  else
+    echo APP
+    echo "$__opt$__sep$__val$__end" >> $__conf
+  fi
+  grep -H -n "^$__opt$__sep" $__conf
+}
+
+_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
+  
+  if [ -z "$CSR_PATH" ] ; then 
+    CSR_PATH=$WORKING_DIR/$domain/$domain.csr
+  fi
+  
+  if [ -z "$CERT_KEY_PATH" ] ; then 
+    CERT_KEY_PATH=$WORKING_DIR/$domain/$domain.key
+  fi
+  
+  if [ -z "$CERT_PATH" ] ; then
+    CERT_PATH=$WORKING_DIR/$domain/$domain.cer
+  fi
+  
+}
+
+#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"
+    if [ "$(date -u "+%s" )" -lt "$Le_NextRenewTime" ] ; then 
+      _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
+  
+  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 $ACCOUNT_KEY_PATH -modulus -noout | cut -d '=' -f 2 )
+  n=$(echo $modulus| xxd -r -p | base64 | _b64 )
+
+  jwk='{"e": "'$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")
+  thumbprint=$(echo -n "$accountkey_json" | sha256sum | xxd -r -p | base64 | _b64)
+  
+  
+  _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
+    _info "Register account Error."
+    return 1
+  fi
+  
+  # verify each domain
+  _info "verify each domain"
+  
+  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
+      _info "new-authz error: $d"
+      return 1
+    fi
+    
+    http01=$(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')
+    _info token $token
+    
+    uri=$(echo "$http01" | sed 's/,/\n'/g| grep '"uri":'| cut -d : -f 2,3|sed 's/"//g')
+    _info uri $uri
+    
+    keyauthorization="$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
+      _info "challenge error: $d"
+      return 1
+    fi
+    
+    while [ "1" ] ; do
+      _debug "sleep 5 secs to verify"
+      sleep 5
+      _debug "checking"
+      
+      if ! _get $uri ; then
+        _info "verify error:$d"
+        return 1
+      fi
+      
+      status=$(echo $response | egrep -o  '"status":"[^"]+"' | cut -d : -f 2 | sed 's/"//g')
+      if [ "$status" == "valid" ] ; then
+        _info "verify success:$d"
+        break;
+      fi
+      
+      if [ "$status" == "invalid" ] ; then
+         error=$(echo $response | egrep -o '"error":{[^}]*}' | grep -o '"detail":"[^"]*"' | cut -d '"' -f 4)
+        _info "verify error:$d"
+        _debug $error
+        return 1;
+      fi
+      
+      if [ "$status" == "pending" ] ; then
+        _info "verify pending:$d"
+      else
+        _info "verify error:$d" 
+        return 1
+      fi
+      
+    done    
+  done 
+  
+  _info "verify finished, start to sign."
+  der=$(openssl req  -in $CSR_PATH -outform DER | base64 | _b64)
+  _send_signed_request "$API/acme/new-cert" "{\"resource\": \"new-cert\", \"csr\": \"$der\"}" "needbas64"
+  
+  echo -----BEGIN CERTIFICATE----- > $CERT_PATH
+  echo $response | sed "s/ /\n/g" >> $CERT_PATH
+  echo -----END CERTIFICATE-----  >> $CERT_PATH
+  _info "Cert success."
+  cat $CERT_PATH
+  
+  _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"
+  
+  
+  
+  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"
+  
+  Le_LinkCert=$(grep -i '^Location' $CURL_HEADER | cut -d " " -f 2)
+  _setopt $DOMAIN_CONF  "Le_LinkCert"           "="  "$Le_LinkCert"
+  
+  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\""
+  
+  if [ "Le_ReloadCmd" ] ; then
+    _info "Run Le_ReloadCmd: $Le_ReloadCmd"
+    $Le_ReloadCmd
+  fi
+  
+}
+
+
+
+renew() {
+  Le_Domain="$1"
+  if [ -z "$Le_Domain" ] ; then
+    echo Usage: $0  domain.com
+    return 1
+  fi
+  
+  DOMAIN_CONF=$WORKING_DIR/$Le_Domain/$Le_Domain.conf
+  if [ -f "$DOMAIN_CONF" ] ; then
+    source "$DOMAIN_CONF"
+    if [ "$(date -u "+%s" )" -lt "$Le_NextRenewTime" ] ; then 
+      _info "Skip, Next renwal time is: $Le_NextRenewTimeStr"
+      return 2
+    fi
+  fi
+  
+  if [ -z "$Le_Webroot" ] ; then
+    echo Le_Webroot can not found, please remove the conf file and issue a new cert
+    return 1
+  fi
+  
+  issue $Le_Domain
+
+}
+
+renewAll() {
+  _info "renewAll"
+  for d in $(ls -F $WORKING_DIR | grep  '/$') ; do
+    d=$(echo $d | cut -d '/' -f 1)
+    _info "renew $d"
+    renew "$d"  
+  done
+  
+}
+
+install() {
+  _initpath
+  _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 -
+    service cron restart
+  fi  
+  
+  
+  _info OK
+}
+
+uninstall() {
+  _initpath
+  _info "Removing cron job"
+  crontab -l | sed "/le.sh renewAll/d" | crontab -
+  
+  _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
+
+
+
+