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Commit | Line | Data |
---|---|---|
2e8454b4 | 1 | #!/usr/bin/env bash |
69f3e78b LS |
2 | set -e |
3 | set -u | |
4 | set -o pipefail | |
81882a64 | 5 | umask 077 # paranoid umask, we're creating private keys |
61f0b7ed | 6 | |
16943702 LS |
7 | # Get the directory in which this script is stored |
8 | SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )" | |
0e92aba2 MG |
9 | BASEDIR="${SCRIPTDIR}" |
10 | ||
bc580335 | 11 | # Check for script dependencies |
9f66bfdb LS |
12 | check_dependencies() { |
13 | curl -V > /dev/null 2>&1 || _exiterr "This script requires curl." | |
14 | openssl version > /dev/null 2>&1 || _exiterr "This script requres an openssl binary." | |
15 | sed "" < /dev/null > /dev/null 2>&1 || _exiterr "This script requres sed." | |
16 | grep -V > /dev/null 2>&1 || _exiterr "This script requres grep." | |
f7ddaa2e | 17 | mktemp -u > /dev/null 2>&1 || _exiterr "This script requires mktemp." |
9f66bfdb LS |
18 | } |
19 | ||
ff116396 LS |
20 | # Setup default config values, search for and load configuration files |
21 | load_config() { | |
00810795 LS |
22 | # Check for config in various locations |
23 | if [[ -z "${CONFIG:-}" ]]; then | |
24 | for check_config in "/etc/letsencrypt.sh" "/usr/local/etc/letsencrypt.sh" "${PWD}" "${SCRIPTDIR}"; do | |
25 | if [[ -e "${check_config}/config.sh" ]]; then | |
26 | BASEDIR="${check_config}" | |
27 | CONFIG="${check_config}/config.sh" | |
28 | break | |
29 | fi | |
30 | done | |
31 | fi | |
32 | ||
ff116396 LS |
33 | # Default values |
34 | CA="https://acme-v01.api.letsencrypt.org/directory" | |
35 | LICENSE="https://letsencrypt.org/documents/LE-SA-v1.0.1-July-27-2015.pdf" | |
36 | HOOK= | |
30ad9584 | 37 | RENEW_DAYS="30" |
ff116396 LS |
38 | PRIVATE_KEY="${BASEDIR}/private_key.pem" |
39 | KEYSIZE="4096" | |
40 | WELLKNOWN="${BASEDIR}/.acme-challenges" | |
41 | PRIVATE_KEY_RENEW="no" | |
42 | OPENSSL_CNF="$(openssl version -d | cut -d'"' -f2)/openssl.cnf" | |
43 | CONTACT_EMAIL= | |
1e33cfe5 | 44 | LOCKFILE="${BASEDIR}/lock" |
1e33cfe5 | 45 | |
81882a64 | 46 | if [[ -z "${CONFIG:-}" ]]; then |
ff116396 LS |
47 | echo "#" >&2 |
48 | echo "# !! WARNING !! No config file found, using default config!" >&2 | |
49 | echo "#" >&2 | |
81882a64 | 50 | elif [[ -e "${CONFIG}" ]]; then |
ff116396 | 51 | echo "# INFO: Using config file ${CONFIG}" |
81882a64 LS |
52 | BASEDIR="$(dirname "${CONFIG}")" |
53 | # shellcheck disable=SC1090 | |
54 | . "${CONFIG}" | |
55 | else | |
f06f764f | 56 | _exiterr "Specified config file doesn't exist." |
81882a64 | 57 | fi |
61f0b7ed | 58 | |
81882a64 LS |
59 | # Remove slash from end of BASEDIR. Mostly for cleaner outputs, doesn't change functionality. |
60 | BASEDIR="${BASEDIR%%/}" | |
401f5f75 | 61 | |
1e33cfe5 | 62 | # Check BASEDIR and set default variables |
f06f764f | 63 | [[ -d "${BASEDIR}" ]] || _exiterr "BASEDIR does not exist: ${BASEDIR}" |
ed27e013 MG |
64 | |
65 | if [[ -n "${PARAM_HOOK:-}" ]]; then | |
66 | HOOK="${PARAM_HOOK}" | |
67 | fi | |
ff116396 LS |
68 | } |
69 | ||
93cd114f | 70 | # Initialize system |
ff116396 LS |
71 | init_system() { |
72 | load_config | |
81882a64 | 73 | |
1e33cfe5 | 74 | # Lockfile handling (prevents concurrent access) |
93cd114f LS |
75 | ( set -C; date > "${LOCKFILE}" ) 2>/dev/null || _exiterr "Lock file '${LOCKFILE}' present, aborting." |
76 | remove_lock() { rm -f "${LOCKFILE}"; } | |
81882a64 LS |
77 | trap 'remove_lock' EXIT |
78 | ||
81882a64 | 79 | # Get CA URLs |
3a9e97f9 | 80 | CA_DIRECTORY="$(http_request get "${CA}")" |
81882a64 LS |
81 | CA_NEW_CERT="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value new-cert)" && |
82 | CA_NEW_AUTHZ="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value new-authz)" && | |
83 | CA_NEW_REG="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value new-reg)" && | |
10d9f342 | 84 | # shellcheck disable=SC2015 |
81882a64 | 85 | CA_REVOKE_CERT="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value revoke-cert)" || |
93cd114f | 86 | _exiterr "Problem retrieving ACME/CA-URLs, check if your configured CA points to the directory entrypoint." |
81882a64 | 87 | |
93cd114f LS |
88 | # Export some environment variables to be used in hook script |
89 | export WELLKNOWN BASEDIR CONFIG | |
0e92aba2 | 90 | |
93cd114f LS |
91 | # Checking for private key ... |
92 | register_new_key="no" | |
0e92aba2 MG |
93 | if [[ -n "${PARAM_PRIVATE_KEY:-}" ]]; then |
94 | # a private key was specified from the command line so use it for this run | |
10d9f342 | 95 | echo "Using private key ${PARAM_PRIVATE_KEY} instead of account key" |
0e92aba2 | 96 | PRIVATE_KEY="${PARAM_PRIVATE_KEY}" |
0e92aba2 MG |
97 | else |
98 | # Check if private account key exists, if it doesn't exist yet generate a new one (rsa key) | |
0e92aba2 | 99 | if [[ ! -e "${PRIVATE_KEY}" ]]; then |
81882a64 | 100 | echo "+ Generating account key..." |
0e92aba2 | 101 | _openssl genrsa -out "${PRIVATE_KEY}" "${KEYSIZE}" |
93cd114f | 102 | register_new_key="yes" |
81882a64 | 103 | fi |
81882a64 | 104 | fi |
93cd114f | 105 | openssl rsa -in "${PRIVATE_KEY}" -check 2>/dev/null > /dev/null || _exiterr "Private key is not valid, can not continue." |
1ab6a436 | 106 | |
81882a64 | 107 | # Get public components from private key and calculate thumbprint |
f70f3048 LS |
108 | pubExponent64="$(openssl rsa -in "${PRIVATE_KEY}" -noout -text | grep publicExponent | grep -oE "0x[a-f0-9]+" | cut -d'x' -f2 | hex2bin | urlbase64)" |
109 | pubMod64="$(openssl rsa -in "${PRIVATE_KEY}" -noout -modulus | cut -d'=' -f2 | hex2bin | urlbase64)" | |
81882a64 | 110 | |
07149196 | 111 | thumbprint="$(printf '{"e":"%s","kty":"RSA","n":"%s"}' "${pubExponent64}" "${pubMod64}" | openssl sha -sha256 -binary | urlbase64)" |
81882a64 LS |
112 | |
113 | # If we generated a new private key in the step above we have to register it with the acme-server | |
93cd114f | 114 | if [[ "${register_new_key}" = "yes" ]]; then |
81882a64 | 115 | echo "+ Registering account key with letsencrypt..." |
93cd114f LS |
116 | [[ ! -z "${CA_NEW_REG}" ]] || _exiterr "Certificate authority doesn't allow registrations." |
117 | # If an email for the contact has been provided then adding it to the registration request | |
81882a64 LS |
118 | if [[ -n "${CONTACT_EMAIL}" ]]; then |
119 | signed_request "${CA_NEW_REG}" '{"resource": "new-reg", "contact":["mailto:'"${CONTACT_EMAIL}"'"], "agreement": "'"$LICENSE"'"}' > /dev/null | |
120 | else | |
121 | signed_request "${CA_NEW_REG}" '{"resource": "new-reg", "agreement": "'"$LICENSE"'"}' > /dev/null | |
122 | fi | |
123 | fi | |
181dd0ff | 124 | |
93cd114f | 125 | [[ -d "${WELLKNOWN}" ]] || _exiterr "WELLKNOWN directory doesn't exist, please create ${WELLKNOWN} and set appropriate permissions." |
81882a64 | 126 | } |
c24843c6 | 127 | |
9f66bfdb LS |
128 | # Print error message and exit with error |
129 | _exiterr() { | |
130 | echo "ERROR: ${1}" >&2 | |
131 | exit 1 | |
132 | } | |
133 | ||
994803bf | 134 | # Encode data as url-safe formatted base64 |
61f0b7ed | 135 | urlbase64() { |
c6e60302 | 136 | # urlbase64: base64 encoded string with '+' replaced with '-' and '/' replaced with '_' |
d760890c | 137 | openssl base64 -e | tr -d '\n\r' | sed -e 's:=*$::g' -e 'y:+/:-_:' |
61f0b7ed | 138 | } |
91ce50af | 139 | |
16bef17e | 140 | # Convert hex string to binary data |
9fe313d8 | 141 | hex2bin() { |
16bef17e LS |
142 | # Remove spaces, add leading zero, escape as hex string and parse with printf |
143 | printf -- "$(cat | sed -E -e 's/[[:space:]]//g' -e 's/^(.(.{2})*)$/0\1/' -e 's/(.{2})/\\x\1/g')" | |
9fe313d8 | 144 | } |
61f0b7ed | 145 | |
bc580335 | 146 | # Get string value from json dictionary |
09729186 | 147 | get_json_string_value() { |
760b6894 | 148 | grep -Eo '"'"${1}"'":[[:space:]]*"[^"]*"' | cut -d'"' -f4 |
09729186 LS |
149 | } |
150 | ||
cc605a22 LS |
151 | # OpenSSL writes to stderr/stdout even when there are no errors. So just |
152 | # display the output if the exit code was != 0 to simplify debugging. | |
153 | _openssl() { | |
154 | set +e | |
155 | out="$(openssl "${@}" 2>&1)" | |
156 | res=$? | |
157 | set -e | |
158 | if [[ $res -ne 0 ]]; then | |
159 | echo " + ERROR: failed to run $* (Exitcode: $res)" >&2 | |
160 | echo >&2 | |
161 | echo "Details:" >&2 | |
162 | echo "$out" >&2 | |
163 | exit $res | |
164 | fi | |
165 | } | |
166 | ||
59f16407 | 167 | # Send http(s) request with specified method |
3a9e97f9 | 168 | http_request() { |
3cb292cb LS |
169 | tempcont="$(mktemp)" |
170 | ||
dd5f36e5 | 171 | if [[ "${1}" = "head" ]]; then |
3cb292cb | 172 | statuscode="$(curl -s -w "%{http_code}" -o "${tempcont}" "${2}" -I)" |
dd5f36e5 | 173 | elif [[ "${1}" = "get" ]]; then |
3cb292cb | 174 | statuscode="$(curl -s -w "%{http_code}" -o "${tempcont}" "${2}")" |
dd5f36e5 | 175 | elif [[ "${1}" = "post" ]]; then |
3cb292cb | 176 | statuscode="$(curl -s -w "%{http_code}" -o "${tempcont}" "${2}" -d "${3}")" |
59f16407 LS |
177 | else |
178 | _exiterr "Unknown request method: ${1}" | |
91ce50af | 179 | fi |
dd5f36e5 | 180 | |
3cb292cb | 181 | if [[ ! "${statuscode:0:1}" = "2" ]]; then |
84fac541 | 182 | echo " + ERROR: An error occurred while sending ${1}-request to ${2} (Status ${statuscode})" >&2 |
3cb292cb LS |
183 | echo >&2 |
184 | echo "Details:" >&2 | |
9e79c066 | 185 | cat "${tempcont}" >&2 |
3cb292cb | 186 | rm -f "${tempcont}" |
c24843c6 | 187 | |
188 | # Wait for hook script to clean the challenge if used | |
59f16407 | 189 | if [[ -n "${HOOK}" ]] && [[ -n "${challenge_token:+set}" ]]; then |
e32ea24c | 190 | ${HOOK} "clean_challenge" '' "${challenge_token}" "${keyauth}" |
c24843c6 | 191 | fi |
192 | ||
8f6c2328 | 193 | # remove temporary domains.txt file if used |
59f16407 | 194 | [[ -n "${PARAM_DOMAIN:-}" ]] && rm "${DOMAINS_TXT}" |
dd5f36e5 | 195 | exit 1 |
130ea6ab | 196 | fi |
dd5f36e5 | 197 | |
31111265 | 198 | cat "${tempcont}" |
3cb292cb | 199 | rm -f "${tempcont}" |
91ce50af | 200 | } |
81882a64 | 201 | |
1446fd88 | 202 | # Send signed request |
61f0b7ed | 203 | signed_request() { |
c6e60302 | 204 | # Encode payload as urlbase64 |
4aa48d33 | 205 | payload64="$(printf '%s' "${2}" | urlbase64)" |
61f0b7ed | 206 | |
c6e60302 | 207 | # Retrieve nonce from acme-server |
994803bf | 208 | nonce="$(http_request head "${CA}" | grep Replay-Nonce: | awk -F ': ' '{print $2}' | tr -d '\n\r')" |
61f0b7ed | 209 | |
c6e60302 | 210 | # Build header with just our public key and algorithm information |
61f0b7ed LS |
211 | header='{"alg": "RS256", "jwk": {"e": "'"${pubExponent64}"'", "kty": "RSA", "n": "'"${pubMod64}"'"}}' |
212 | ||
c6e60302 | 213 | # Build another header which also contains the previously received nonce and encode it as urlbase64 |
61f0b7ed | 214 | protected='{"alg": "RS256", "jwk": {"e": "'"${pubExponent64}"'", "kty": "RSA", "n": "'"${pubMod64}"'"}, "nonce": "'"${nonce}"'"}' |
4aa48d33 | 215 | protected64="$(printf '%s' "${protected}" | urlbase64)" |
61f0b7ed | 216 | |
c6e60302 | 217 | # Sign header with nonce and our payload with our private key and encode signature as urlbase64 |
0e92aba2 | 218 | signed64="$(printf '%s' "${protected64}.${payload64}" | openssl dgst -sha256 -sign "${PRIVATE_KEY}" | urlbase64)" |
61f0b7ed | 219 | |
c6e60302 | 220 | # Send header + extended header + payload + signature to the acme-server |
61f0b7ed LS |
221 | data='{"header": '"${header}"', "protected": "'"${protected64}"'", "payload": "'"${payload64}"'", "signature": "'"${signed64}"'"}' |
222 | ||
3a9e97f9 | 223 | http_request post "${1}" "${data}" |
61f0b7ed LS |
224 | } |
225 | ||
1446fd88 | 226 | # Create certificate for domain(s) |
61f0b7ed LS |
227 | sign_domain() { |
228 | domain="${1}" | |
1f65a335 | 229 | altnames="${*}" |
1446fd88 | 230 | timestamp="$(date +%s)" |
81882a64 | 231 | |
579e2316 | 232 | echo " + Signing domains..." |
09729186 | 233 | if [[ -z "${CA_NEW_AUTHZ}" ]] || [[ -z "${CA_NEW_CERT}" ]]; then |
1446fd88 | 234 | _exiterr "Certificate authority doesn't allow certificate signing" |
09729186 | 235 | fi |
3cc587c2 | 236 | |
3dbbb461 | 237 | # If there is no existing certificate directory => make it |
5b29db97 | 238 | if [[ ! -e "${BASEDIR}/certs/${domain}" ]]; then |
1446fd88 | 239 | echo " + Creating new directory ${BASEDIR}/certs/${domain} ..." |
5b29db97 | 240 | mkdir -p "${BASEDIR}/certs/${domain}" |
3dbbb461 MG |
241 | fi |
242 | ||
f343dc11 | 243 | privkey="privkey.pem" |
3dbbb461 | 244 | # generate a new private key if we need or want one |
5b29db97 | 245 | if [[ ! -f "${BASEDIR}/certs/${domain}/privkey.pem" ]] || [[ "${PRIVATE_KEY_RENEW}" = "yes" ]]; then |
579e2316 | 246 | echo " + Generating private key..." |
f343dc11 | 247 | privkey="privkey-${timestamp}.pem" |
7f8ea450 | 248 | _openssl genrsa -out "${BASEDIR}/certs/${domain}/privkey-${timestamp}.pem" "${KEYSIZE}" |
61f0b7ed LS |
249 | fi |
250 | ||
c6e60302 | 251 | # Generate signing request config and the actual signing request |
1446fd88 | 252 | echo " + Generating signing request..." |
c6e60302 | 253 | SAN="" |
1446fd88 | 254 | for altname in ${altnames}; do |
c6e60302 LS |
255 | SAN+="DNS:${altname}, " |
256 | done | |
cd13a9c2 | 257 | SAN="${SAN%%, }" |
3bc1cf91 LS |
258 | local tmp_openssl_cnf |
259 | tmp_openssl_cnf="$(mktemp)" | |
260 | cat "${OPENSSL_CNF}" > "${tmp_openssl_cnf}" | |
9e79c066 LS |
261 | printf "[SAN]\nsubjectAltName=%s" "${SAN}" >> "${tmp_openssl_cnf}" |
262 | openssl req -new -sha256 -key "${BASEDIR}/certs/${domain}/${privkey}" -out "${BASEDIR}/certs/${domain}/cert-${timestamp}.csr" -subj "/CN=${domain}/" -reqexts SAN -config "${tmp_openssl_cnf}" | |
263 | rm -f "${tmp_openssl_cnf}" | |
c6e60302 LS |
264 | |
265 | # Request and respond to challenges | |
1446fd88 | 266 | for altname in ${altnames}; do |
c6e60302 | 267 | # Ask the acme-server for new challenge token and extract them from the resulting json block |
579e2316 | 268 | echo " + Requesting challenge for ${altname}..." |
09729186 | 269 | response="$(signed_request "${CA_NEW_AUTHZ}" '{"resource": "new-authz", "identifier": {"type": "dns", "value": "'"${altname}"'"}}')" |
61f0b7ed | 270 | |
1446fd88 | 271 | challenges="$(printf '%s\n' "${response}" | grep -Eo '"challenges":[^\[]*\[[^]]*]')" |
526843d6 SR |
272 | repl=$'\n''{' # fix syntax highlighting in Vim |
273 | challenge="$(printf "%s" "${challenges//\{/${repl}}" | grep 'http-01')" | |
09729186 LS |
274 | challenge_token="$(printf '%s' "${challenge}" | get_json_string_value token | sed 's/[^A-Za-z0-9_\-]/_/g')" |
275 | challenge_uri="$(printf '%s' "${challenge}" | get_json_string_value uri)" | |
61f0b7ed | 276 | |
dd5f36e5 | 277 | if [[ -z "${challenge_token}" ]] || [[ -z "${challenge_uri}" ]]; then |
1446fd88 | 278 | _exiterr "Can't retrieve challenges (${response})" |
abb95693 LS |
279 | fi |
280 | ||
c6e60302 | 281 | # Challenge response consists of the challenge token and the thumbprint of our public certificate |
61f0b7ed LS |
282 | keyauth="${challenge_token}.${thumbprint}" |
283 | ||
c6e60302 | 284 | # Store challenge response in well-known location and make world-readable (so that a webserver can access it) |
4aa48d33 | 285 | printf '%s' "${keyauth}" > "${WELLKNOWN}/${challenge_token}" |
2b5df371 | 286 | chmod a+r "${WELLKNOWN}/${challenge_token}" |
61f0b7ed | 287 | |
b33f1288 | 288 | # Wait for hook script to deploy the challenge if used |
1446fd88 | 289 | [[ -n "${HOOK}" ]] && ${HOOK} "deploy_challenge" "${altname}" "${challenge_token}" "${keyauth}" |
b33f1288 | 290 | |
1446fd88 | 291 | # Ask the acme-server to verify our challenge and wait until it is no longer pending |
579e2316 | 292 | echo " + Responding to challenge for ${altname}..." |
61f0b7ed LS |
293 | result="$(signed_request "${challenge_uri}" '{"resource": "challenge", "keyAuthorization": "'"${keyauth}"'"}')" |
294 | ||
09729186 | 295 | status="$(printf '%s\n' "${result}" | get_json_string_value status)" |
61f0b7ed | 296 | |
dd5f36e5 | 297 | while [[ "${status}" = "pending" ]]; do |
c6e60302 | 298 | sleep 1 |
3a9e97f9 | 299 | status="$(http_request get "${challenge_uri}" | get_json_string_value status)" |
61f0b7ed LS |
300 | done |
301 | ||
00837b86 | 302 | rm -f "${WELLKNOWN}/${challenge_token}" |
81882a64 | 303 | |
ab301951 E |
304 | # Wait for hook script to clean the challenge if used |
305 | if [[ -n "${HOOK}" ]] && [[ -n "${challenge_token}" ]]; then | |
306 | ${HOOK} "clean_challenge" "${altname}" "${challenge_token}" "${keyauth}" | |
307 | fi | |
81882a64 | 308 | |
76a37834 | 309 | if [[ "${status}" = "valid" ]]; then |
579e2316 | 310 | echo " + Challenge is valid!" |
76a37834 | 311 | else |
1446fd88 | 312 | _exiterr "Challenge is invalid! (returned: ${status})" |
76a37834 | 313 | fi |
61f0b7ed LS |
314 | done |
315 | ||
b7439a83 | 316 | # Finally request certificate from the acme-server and store it in cert-${timestamp}.pem and link from cert.pem |
579e2316 | 317 | echo " + Requesting certificate..." |
f343dc11 | 318 | csr64="$(openssl req -in "${BASEDIR}/certs/${domain}/cert-${timestamp}.csr" -outform DER | urlbase64)" |
09729186 | 319 | crt64="$(signed_request "${CA_NEW_CERT}" '{"resource": "new-cert", "csr": "'"${csr64}"'"}' | openssl base64 -e)" |
85da9090 SR |
320 | crt_path="${BASEDIR}/certs/${domain}/cert-${timestamp}.pem" |
321 | printf -- '-----BEGIN CERTIFICATE-----\n%s\n-----END CERTIFICATE-----\n' "${crt64}" > "${crt_path}" | |
1446fd88 LS |
322 | |
323 | # Try to load the certificate to detect corruption | |
a4e7c43a | 324 | echo " + Checking certificate..." |
10cf2299 | 325 | _openssl x509 -text < "${crt_path}" |
329acb58 LS |
326 | |
327 | # Create fullchain.pem | |
1eb6f6d2 LS |
328 | echo " + Creating fullchain.pem..." |
329 | cat "${crt_path}" > "${BASEDIR}/certs/${domain}/fullchain-${timestamp}.pem" | |
3a9e97f9 | 330 | http_request get "$(openssl x509 -in "${BASEDIR}/certs/${domain}/cert-${timestamp}.pem" -noout -text | grep 'CA Issuers - URI:' | cut -d':' -f2-)" > "${BASEDIR}/certs/${domain}/chain-${timestamp}.pem" |
1446fd88 | 331 | if ! grep -q "BEGIN CERTIFICATE" "${BASEDIR}/certs/${domain}/chain-${timestamp}.pem"; then |
a733f789 LS |
332 | openssl x509 -in "${BASEDIR}/certs/${domain}/chain-${timestamp}.pem" -inform DER -out "${BASEDIR}/certs/${domain}/chain-${timestamp}.pem" -outform PEM |
333 | fi | |
a733f789 | 334 | cat "${BASEDIR}/certs/${domain}/chain-${timestamp}.pem" >> "${BASEDIR}/certs/${domain}/fullchain-${timestamp}.pem" |
329acb58 | 335 | |
1446fd88 LS |
336 | # Update symlinks |
337 | [[ "${privkey}" = "privkey.pem" ]] || ln -sf "privkey-${timestamp}.pem" "${BASEDIR}/certs/${domain}/privkey.pem" | |
f343dc11 | 338 | |
1446fd88 LS |
339 | ln -sf "chain-${timestamp}.pem" "${BASEDIR}/certs/${domain}/chain.pem" |
340 | ln -sf "fullchain-${timestamp}.pem" "${BASEDIR}/certs/${domain}/fullchain.pem" | |
3f6ff8f7 SR |
341 | ln -sf "cert-${timestamp}.csr" "${BASEDIR}/certs/${domain}/cert.csr" |
342 | ln -sf "cert-${timestamp}.pem" "${BASEDIR}/certs/${domain}/cert.pem" | |
f343dc11 | 343 | |
c24843c6 | 344 | # Wait for hook script to clean the challenge and to deploy cert if used |
1446fd88 | 345 | [[ -n "${HOOK}" ]] && ${HOOK} "deploy_cert" "${domain}" "${BASEDIR}/certs/${domain}/privkey.pem" "${BASEDIR}/certs/${domain}/cert.pem" "${BASEDIR}/certs/${domain}/fullchain.pem" |
c24843c6 | 346 | |
347 | unset challenge_token | |
579e2316 | 348 | echo " + Done!" |
61f0b7ed LS |
349 | } |
350 | ||
0a859a19 | 351 | # Usage: --cron (-c) |
083c6736 | 352 | # Description: Sign/renew non-existant/changed/expiring certificates. |
8f6c2328 | 353 | command_sign_domains() { |
9f66bfdb LS |
354 | init_system |
355 | ||
8f6c2328 | 356 | if [[ -n "${PARAM_DOMAIN:-}" ]]; then |
8f6c2328 | 357 | DOMAINS_TXT="$(mktemp)" |
93cd114f LS |
358 | printf -- "${PARAM_DOMAIN}" > "${DOMAINS_TXT}" |
359 | elif [[ -e "${BASEDIR}/domains.txt" ]]; then | |
360 | DOMAINS_TXT="${BASEDIR}/domains.txt" | |
361 | else | |
362 | _exiterr "domains.txt not found and --domain not given" | |
8f6c2328 | 363 | fi |
93cd114f | 364 | |
81882a64 | 365 | # Generate certificates for all domains found in domains.txt. Check if existing certificate are about to expire |
a7934fe7 | 366 | <"${DOMAINS_TXT}" sed 's/^[[:space:]]*//g;s/[[:space:]]*$//g' | (grep -vE '^(#|$)' || true) | while read -r line; do |
81882a64 | 367 | domain="$(printf '%s\n' "${line}" | cut -d' ' -f1)" |
8f6c2328 | 368 | morenames="$(printf '%s\n' "${line}" | cut -s -d' ' -f2-)" |
81882a64 | 369 | cert="${BASEDIR}/certs/${domain}/cert.pem" |
f9126627 | 370 | |
2d097c92 MG |
371 | force_renew="${PARAM_FORCE:-no}" |
372 | ||
8f6c2328 MG |
373 | if [[ -z "${morenames}" ]];then |
374 | echo "Processing ${domain}" | |
375 | else | |
93cd114f | 376 | echo "Processing ${domain} with alternative names: ${morenames}" |
8f6c2328 MG |
377 | fi |
378 | ||
81882a64 | 379 | if [[ -e "${cert}" ]]; then |
93cd114f | 380 | printf " + Checking domain name(s) of existing cert..." |
2d097c92 MG |
381 | |
382 | certnames="$(openssl x509 -in "${cert}" -text -noout | grep DNS: | sed 's/DNS://g' | tr -d ' ' | tr ',' '\n' | sort -u | tr '\n' ' ' | sed 's/ $//')" | |
383 | givennames="$(echo "${domain}" "${morenames}"| tr ' ' '\n' | sort -u | tr '\n' ' ' | sed 's/ $//' | sed 's/^ //')" | |
384 | ||
385 | if [[ "${certnames}" = "${givennames}" ]]; then | |
386 | echo " unchanged." | |
387 | else | |
388 | echo " changed!" | |
389 | echo " + Domain name(s) are not matching!" | |
390 | echo " + Names in old certificate: ${certnames}" | |
391 | echo " + Configured names: ${givennames}" | |
392 | echo " + Forcing renew." | |
393 | force_renew="yes" | |
394 | fi | |
395 | fi | |
396 | ||
397 | if [[ -e "${cert}" ]]; then | |
398 | echo " + Checking expire date of existing cert..." | |
81882a64 | 399 | valid="$(openssl x509 -enddate -noout -in "${cert}" | cut -d= -f2- )" |
8221727a | 400 | |
93cd114f | 401 | printf " + Valid till %s " "${valid}" |
81882a64 | 402 | if openssl x509 -checkend $((RENEW_DAYS * 86400)) -noout -in "${cert}"; then |
93cd114f | 403 | printf "(Longer than %d days). " "${RENEW_DAYS}" |
2d097c92 MG |
404 | if [[ "${force_renew}" = "yes" ]]; then |
405 | echo "Ignoring because renew was forced!" | |
8f6c2328 MG |
406 | else |
407 | echo "Skipping!" | |
408 | continue | |
409 | fi | |
410 | else | |
411 | echo "(Less than ${RENEW_DAYS} days). Renewing!" | |
81882a64 | 412 | fi |
81882a64 | 413 | fi |
8221727a | 414 | |
81882a64 | 415 | # shellcheck disable=SC2086 |
93cd114f | 416 | sign_domain ${line} |
a7934fe7 | 417 | done |
f13eaa7f | 418 | |
8f6c2328 | 419 | # remove temporary domains.txt file if used |
93cd114f LS |
420 | [[ -n "${PARAM_DOMAIN:-}" ]] && rm -f "${DOMAINS_TXT}" |
421 | ||
422 | exit 0 | |
81882a64 | 423 | } |
3390080c | 424 | |
0a859a19 LS |
425 | # Usage: --revoke (-r) path/to/cert.pem |
426 | # Description: Revoke specified certificate | |
81882a64 | 427 | command_revoke() { |
9f66bfdb LS |
428 | init_system |
429 | ||
3dcfa8b4 LS |
430 | [[ -n "${CA_REVOKE_CERT}" ]] || _exiterr "Certificate authority doesn't allow certificate revocation." |
431 | ||
81882a64 | 432 | cert="${1}" |
c7018036 MG |
433 | if [[ -L "${cert}" ]]; then |
434 | # follow symlink and use real certificate name (so we move the real file and not the symlink at the end) | |
3bc1cf91 LS |
435 | local link_target |
436 | link_target="$(readlink -n "${cert}")" | |
437 | if [[ "${link_target}" =~ ^/ ]]; then | |
c7018036 MG |
438 | cert="${link_target}" |
439 | else | |
440 | cert="$(dirname "${cert}")/${link_target}" | |
441 | fi | |
442 | fi | |
3dcfa8b4 LS |
443 | [[ -f "${cert}" ]] || _exiterr "Could not find certificate ${cert}" |
444 | ||
81882a64 | 445 | echo "Revoking ${cert}" |
3dcfa8b4 | 446 | |
81882a64 LS |
447 | cert64="$(openssl x509 -in "${cert}" -inform PEM -outform DER | urlbase64)" |
448 | response="$(signed_request "${CA_REVOKE_CERT}" '{"resource": "revoke-cert", "certificate": "'"${cert64}"'"}')" | |
3dcfa8b4 | 449 | # if there is a problem with our revoke request _request (via signed_request) will report this and "exit 1" out |
81882a64 | 450 | # so if we are here, it is safe to assume the request was successful |
3dcfa8b4 LS |
451 | echo " + Done." |
452 | echo " + Renaming certificate to ${cert}-revoked" | |
81882a64 LS |
453 | mv -f "${cert}" "${cert}-revoked" |
454 | } | |
c24843c6 | 455 | |
0a859a19 LS |
456 | # Usage: --help (-h) |
457 | # Description: Show help text | |
81882a64 | 458 | command_help() { |
7727f5ea LS |
459 | printf "Usage: %s [-h] [command [argument]] [parameter [argument]] [parameter [argument]] ...\n\n" "${0}" |
460 | printf "Default command: help\n\n" | |
0a859a19 | 461 | echo "Commands:" |
760b6894 | 462 | grep -e '^[[:space:]]*# Usage:' -e '^[[:space:]]*# Description:' -e '^command_.*()[[:space:]]*{' "${0}" | while read -r usage; read -r description; read -r command; do |
31111265 | 463 | if [[ ! "${usage}" =~ Usage ]] || [[ ! "${description}" =~ Description ]] || [[ ! "${command}" =~ ^command_ ]]; then |
7727f5ea | 464 | _exiterr "Error generating help text." |
0a859a19 | 465 | fi |
7727f5ea | 466 | printf " %-32s %s\n" "${usage##"# Usage: "}" "${description##"# Description: "}" |
0a859a19 | 467 | done |
7727f5ea | 468 | printf -- "\nParameters:\n" |
760b6894 | 469 | grep -E -e '^[[:space:]]*# PARAM_Usage:' -e '^[[:space:]]*# PARAM_Description:' "${0}" | while read -r usage; read -r description; do |
31111265 | 470 | if [[ ! "${usage}" =~ Usage ]] || [[ ! "${description}" =~ Description ]]; then |
7727f5ea | 471 | _exiterr "Error generating help text." |
0a859a19 | 472 | fi |
7727f5ea | 473 | printf " %-32s %s\n" "${usage##"# PARAM_Usage: "}" "${description##"# PARAM_Description: "}" |
0a859a19 | 474 | done |
81882a64 | 475 | } |
063d28a6 | 476 | |
1ab6a436 LS |
477 | # Usage: --env (-e) |
478 | # Description: Output configuration variables for use in other scripts | |
479 | command_env() { | |
480 | echo "# letsencrypt.sh configuration" | |
9f66bfdb LS |
481 | load_config |
482 | typeset -p CA LICENSE HOOK RENEW_DAYS PRIVATE_KEY KEYSIZE WELLKNOWN PRIVATE_KEY_RENEW OPENSSL_CNF CONTACT_EMAIL LOCKFILE | |
1ab6a436 LS |
483 | } |
484 | ||
bc580335 | 485 | # Main method (parses script arguments and calls command_* methods) |
9f66bfdb LS |
486 | main() { |
487 | COMMAND="" | |
488 | set_command() { | |
489 | [[ -z "${COMMAND}" ]] || _exiterr "Only one command can be executed at a time. See help (-h) for more information." | |
490 | COMMAND="${1}" | |
491 | } | |
492 | ||
493 | check_parameters() { | |
494 | if [[ -z "${1:-}" ]]; then | |
495 | echo "The specified command requires additional parameters. See help:" >&2 | |
31111265 LS |
496 | echo >&2 |
497 | command_help >&2 | |
81882a64 | 498 | exit 1 |
9f66bfdb LS |
499 | elif [[ "${1:0:1}" = "-" ]]; then |
500 | _exiterr "Invalid argument: ${1}" | |
501 | fi | |
502 | } | |
579e2316 | 503 | |
9f66bfdb LS |
504 | while (( "${#}" )); do |
505 | case "${1}" in | |
506 | --help|-h) | |
507 | command_help | |
508 | exit 0 | |
509 | ;; | |
579e2316 | 510 | |
9f66bfdb LS |
511 | --env|-e) |
512 | set_command env | |
513 | ;; | |
579e2316 | 514 | |
9f66bfdb LS |
515 | --cron|-c) |
516 | set_command sign_domains | |
517 | ;; | |
518 | ||
519 | --revoke|-r) | |
520 | shift 1 | |
521 | set_command revoke | |
522 | check_parameters "${1:-}" | |
523 | PARAM_REVOKECERT="${1}" | |
524 | ;; | |
5060dea0 | 525 | |
8f6c2328 | 526 | # PARAM_Usage: --domain (-d) domain.tld |
9f66bfdb LS |
527 | # PARAM_Description: Use specified domain name(s) instead of domains.txt entry (one certificate!) |
528 | --domain|-d) | |
529 | shift 1 | |
530 | check_parameters "${1:-}" | |
531 | if [[ -z "${PARAM_DOMAIN:-}" ]]; then | |
532 | PARAM_DOMAIN="${1}" | |
533 | else | |
534 | PARAM_DOMAIN="${PARAM_DOMAIN} ${1}" | |
535 | fi | |
536 | ;; | |
537 | ||
538 | ||
8f6c2328 | 539 | # PARAM_Usage: --force (-x) |
9f66bfdb LS |
540 | # PARAM_Description: Force renew of certificate even if it is longer valid than value in RENEW_DAYS |
541 | --force|-x) | |
542 | PARAM_FORCE="yes" | |
543 | ;; | |
544 | ||
0a859a19 LS |
545 | # PARAM_Usage: --privkey (-p) path/to/key.pem |
546 | # PARAM_Description: Use specified private key instead of account key (useful for revocation) | |
9f66bfdb LS |
547 | --privkey|-p) |
548 | shift 1 | |
549 | check_parameters "${1:-}" | |
550 | PARAM_PRIVATE_KEY="${1}" | |
551 | ;; | |
552 | ||
553 | # PARAM_Usage: --config (-f) path/to/config.sh | |
554 | # PARAM_Description: Use specified config file | |
555 | --config|-f) | |
556 | shift 1 | |
557 | check_parameters "${1:-}" | |
558 | CONFIG="${1}" | |
559 | ;; | |
560 | ||
ed27e013 MG |
561 | # PARAM_Usage: --hook (-k) path/to/hook.sh |
562 | # PARAM_Description: Use specified script for hooks | |
563 | --hook|-k) | |
564 | shift 1 | |
565 | check_parameters "${1:-}" | |
566 | PARAM_HOOK="${1}" | |
567 | ;; | |
568 | ||
9f66bfdb LS |
569 | *) |
570 | echo "Unknown parameter detected: ${1}" >&2 | |
571 | echo >&2 | |
572 | command_help >&2 | |
573 | exit 1 | |
574 | ;; | |
575 | esac | |
576 | ||
577 | shift 1 | |
578 | done | |
579 | ||
580 | case "${COMMAND}" in | |
581 | env) command_env;; | |
582 | sign_domains) command_sign_domains;; | |
583 | revoke) command_revoke "${PARAM_REVOKECERT}";; | |
584 | *) command_help; exit1;; | |
81882a64 | 585 | esac |
9f66bfdb | 586 | } |
81882a64 | 587 | |
9f66bfdb LS |
588 | # Check for missing dependencies |
589 | check_dependencies | |
590 | ||
591 | # Run script | |
592 | main "${@:-}" |