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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." | |
17 | } | |
18 | ||
ff116396 LS |
19 | # Setup default config values, search for and load configuration files |
20 | load_config() { | |
21 | # Default values | |
22 | CA="https://acme-v01.api.letsencrypt.org/directory" | |
23 | LICENSE="https://letsencrypt.org/documents/LE-SA-v1.0.1-July-27-2015.pdf" | |
24 | HOOK= | |
25 | RENEW_DAYS="14" | |
26 | PRIVATE_KEY="${BASEDIR}/private_key.pem" | |
27 | KEYSIZE="4096" | |
28 | WELLKNOWN="${BASEDIR}/.acme-challenges" | |
29 | PRIVATE_KEY_RENEW="no" | |
30 | OPENSSL_CNF="$(openssl version -d | cut -d'"' -f2)/openssl.cnf" | |
31 | CONTACT_EMAIL= | |
1e33cfe5 | 32 | LOCKFILE="${BASEDIR}/lock" |
1e33cfe5 | 33 | |
81882a64 LS |
34 | # Check for config in various locations |
35 | if [[ -z "${CONFIG:-}" ]]; then | |
ff116396 | 36 | for check_config in "/etc/letsencrypt.sh" "/usr/local/etc/letsencrypt.sh" "${PWD}" "${SCRIPTDIR}"; do |
81882a64 LS |
37 | if [[ -e "${check_config}/config.sh" ]]; then |
38 | BASEDIR="${check_config}" | |
39 | CONFIG="${check_config}/config.sh" | |
40 | break | |
41 | fi | |
42 | done | |
454c164b | 43 | fi |
454c164b | 44 | |
81882a64 | 45 | if [[ -z "${CONFIG:-}" ]]; then |
ff116396 LS |
46 | echo "#" >&2 |
47 | echo "# !! WARNING !! No config file found, using default config!" >&2 | |
48 | echo "#" >&2 | |
81882a64 | 49 | elif [[ -e "${CONFIG}" ]]; then |
ff116396 | 50 | echo "# INFO: Using config file ${CONFIG}" |
81882a64 LS |
51 | BASEDIR="$(dirname "${CONFIG}")" |
52 | # shellcheck disable=SC1090 | |
53 | . "${CONFIG}" | |
54 | else | |
f06f764f | 55 | _exiterr "Specified config file doesn't exist." |
81882a64 | 56 | fi |
61f0b7ed | 57 | |
81882a64 LS |
58 | # Remove slash from end of BASEDIR. Mostly for cleaner outputs, doesn't change functionality. |
59 | BASEDIR="${BASEDIR%%/}" | |
401f5f75 | 60 | |
1e33cfe5 | 61 | # Check BASEDIR and set default variables |
f06f764f | 62 | [[ -d "${BASEDIR}" ]] || _exiterr "BASEDIR does not exist: ${BASEDIR}" |
ff116396 LS |
63 | } |
64 | ||
93cd114f | 65 | # Initialize system |
ff116396 LS |
66 | init_system() { |
67 | load_config | |
81882a64 | 68 | |
1e33cfe5 | 69 | # Lockfile handling (prevents concurrent access) |
93cd114f LS |
70 | ( set -C; date > "${LOCKFILE}" ) 2>/dev/null || _exiterr "Lock file '${LOCKFILE}' present, aborting." |
71 | remove_lock() { rm -f "${LOCKFILE}"; } | |
81882a64 LS |
72 | trap 'remove_lock' EXIT |
73 | ||
81882a64 | 74 | # Get CA URLs |
3a9e97f9 | 75 | CA_DIRECTORY="$(http_request get "${CA}")" |
81882a64 LS |
76 | CA_NEW_CERT="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value new-cert)" && |
77 | CA_NEW_AUTHZ="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value new-authz)" && | |
78 | CA_NEW_REG="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value new-reg)" && | |
10d9f342 | 79 | # shellcheck disable=SC2015 |
81882a64 | 80 | CA_REVOKE_CERT="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value revoke-cert)" || |
93cd114f | 81 | _exiterr "Problem retrieving ACME/CA-URLs, check if your configured CA points to the directory entrypoint." |
81882a64 | 82 | |
93cd114f LS |
83 | # Export some environment variables to be used in hook script |
84 | export WELLKNOWN BASEDIR CONFIG | |
0e92aba2 | 85 | |
93cd114f LS |
86 | # Checking for private key ... |
87 | register_new_key="no" | |
0e92aba2 MG |
88 | if [[ -n "${PARAM_PRIVATE_KEY:-}" ]]; then |
89 | # a private key was specified from the command line so use it for this run | |
10d9f342 | 90 | echo "Using private key ${PARAM_PRIVATE_KEY} instead of account key" |
0e92aba2 | 91 | PRIVATE_KEY="${PARAM_PRIVATE_KEY}" |
0e92aba2 MG |
92 | else |
93 | # Check if private account key exists, if it doesn't exist yet generate a new one (rsa key) | |
0e92aba2 | 94 | if [[ ! -e "${PRIVATE_KEY}" ]]; then |
81882a64 | 95 | echo "+ Generating account key..." |
0e92aba2 | 96 | _openssl genrsa -out "${PRIVATE_KEY}" "${KEYSIZE}" |
93cd114f | 97 | register_new_key="yes" |
81882a64 | 98 | fi |
81882a64 | 99 | fi |
93cd114f | 100 | openssl rsa -in "${PRIVATE_KEY}" -check 2>/dev/null > /dev/null || _exiterr "Private key is not valid, can not continue." |
1ab6a436 | 101 | |
81882a64 | 102 | # Get public components from private key and calculate thumbprint |
f70f3048 LS |
103 | pubExponent64="$(openssl rsa -in "${PRIVATE_KEY}" -noout -text | grep publicExponent | grep -oE "0x[a-f0-9]+" | cut -d'x' -f2 | hex2bin | urlbase64)" |
104 | pubMod64="$(openssl rsa -in "${PRIVATE_KEY}" -noout -modulus | cut -d'=' -f2 | hex2bin | urlbase64)" | |
81882a64 | 105 | |
07149196 | 106 | thumbprint="$(printf '{"e":"%s","kty":"RSA","n":"%s"}' "${pubExponent64}" "${pubMod64}" | openssl sha -sha256 -binary | urlbase64)" |
81882a64 LS |
107 | |
108 | # If we generated a new private key in the step above we have to register it with the acme-server | |
93cd114f | 109 | if [[ "${register_new_key}" = "yes" ]]; then |
81882a64 | 110 | echo "+ Registering account key with letsencrypt..." |
93cd114f LS |
111 | [[ ! -z "${CA_NEW_REG}" ]] || _exiterr "Certificate authority doesn't allow registrations." |
112 | # If an email for the contact has been provided then adding it to the registration request | |
81882a64 LS |
113 | if [[ -n "${CONTACT_EMAIL}" ]]; then |
114 | signed_request "${CA_NEW_REG}" '{"resource": "new-reg", "contact":["mailto:'"${CONTACT_EMAIL}"'"], "agreement": "'"$LICENSE"'"}' > /dev/null | |
115 | else | |
116 | signed_request "${CA_NEW_REG}" '{"resource": "new-reg", "agreement": "'"$LICENSE"'"}' > /dev/null | |
117 | fi | |
118 | fi | |
181dd0ff | 119 | |
93cd114f | 120 | [[ -d "${WELLKNOWN}" ]] || _exiterr "WELLKNOWN directory doesn't exist, please create ${WELLKNOWN} and set appropriate permissions." |
81882a64 | 121 | } |
c24843c6 | 122 | |
9f66bfdb LS |
123 | # Print error message and exit with error |
124 | _exiterr() { | |
125 | echo "ERROR: ${1}" >&2 | |
126 | exit 1 | |
127 | } | |
128 | ||
994803bf | 129 | # Encode data as url-safe formatted base64 |
61f0b7ed | 130 | urlbase64() { |
c6e60302 | 131 | # urlbase64: base64 encoded string with '+' replaced with '-' and '/' replaced with '_' |
994803bf | 132 | openssl base64 -e | tr -d '\n\r' | sed 's/=*$//g' | tr '+/' '-_' |
61f0b7ed | 133 | } |
91ce50af | 134 | |
16bef17e | 135 | # Convert hex string to binary data |
9fe313d8 | 136 | hex2bin() { |
16bef17e LS |
137 | # Remove spaces, add leading zero, escape as hex string and parse with printf |
138 | printf -- "$(cat | sed -E -e 's/[[:space:]]//g' -e 's/^(.(.{2})*)$/0\1/' -e 's/(.{2})/\\x\1/g')" | |
9fe313d8 | 139 | } |
61f0b7ed | 140 | |
bc580335 | 141 | # Get string value from json dictionary |
09729186 | 142 | get_json_string_value() { |
760b6894 | 143 | grep -Eo '"'"${1}"'":[[:space:]]*"[^"]*"' | cut -d'"' -f4 |
09729186 LS |
144 | } |
145 | ||
cc605a22 LS |
146 | # OpenSSL writes to stderr/stdout even when there are no errors. So just |
147 | # display the output if the exit code was != 0 to simplify debugging. | |
148 | _openssl() { | |
149 | set +e | |
150 | out="$(openssl "${@}" 2>&1)" | |
151 | res=$? | |
152 | set -e | |
153 | if [[ $res -ne 0 ]]; then | |
154 | echo " + ERROR: failed to run $* (Exitcode: $res)" >&2 | |
155 | echo >&2 | |
156 | echo "Details:" >&2 | |
157 | echo "$out" >&2 | |
158 | exit $res | |
159 | fi | |
160 | } | |
161 | ||
59f16407 | 162 | # Send http(s) request with specified method |
3a9e97f9 | 163 | http_request() { |
3cb292cb LS |
164 | tempcont="$(mktemp)" |
165 | ||
dd5f36e5 | 166 | if [[ "${1}" = "head" ]]; then |
3cb292cb | 167 | statuscode="$(curl -s -w "%{http_code}" -o "${tempcont}" "${2}" -I)" |
dd5f36e5 | 168 | elif [[ "${1}" = "get" ]]; then |
3cb292cb | 169 | statuscode="$(curl -s -w "%{http_code}" -o "${tempcont}" "${2}")" |
dd5f36e5 | 170 | elif [[ "${1}" = "post" ]]; then |
3cb292cb | 171 | statuscode="$(curl -s -w "%{http_code}" -o "${tempcont}" "${2}" -d "${3}")" |
59f16407 LS |
172 | else |
173 | _exiterr "Unknown request method: ${1}" | |
91ce50af | 174 | fi |
dd5f36e5 | 175 | |
3cb292cb | 176 | if [[ ! "${statuscode:0:1}" = "2" ]]; then |
84fac541 | 177 | echo " + ERROR: An error occurred while sending ${1}-request to ${2} (Status ${statuscode})" >&2 |
3cb292cb LS |
178 | echo >&2 |
179 | echo "Details:" >&2 | |
9e79c066 | 180 | cat "${tempcont}" >&2 |
3cb292cb | 181 | rm -f "${tempcont}" |
c24843c6 | 182 | |
183 | # Wait for hook script to clean the challenge if used | |
59f16407 | 184 | if [[ -n "${HOOK}" ]] && [[ -n "${challenge_token:+set}" ]]; then |
e32ea24c | 185 | ${HOOK} "clean_challenge" '' "${challenge_token}" "${keyauth}" |
c24843c6 | 186 | fi |
187 | ||
8f6c2328 | 188 | # remove temporary domains.txt file if used |
59f16407 | 189 | [[ -n "${PARAM_DOMAIN:-}" ]] && rm "${DOMAINS_TXT}" |
dd5f36e5 | 190 | exit 1 |
130ea6ab | 191 | fi |
dd5f36e5 | 192 | |
31111265 | 193 | cat "${tempcont}" |
3cb292cb | 194 | rm -f "${tempcont}" |
91ce50af | 195 | } |
81882a64 | 196 | |
1446fd88 | 197 | # Send signed request |
61f0b7ed | 198 | signed_request() { |
c6e60302 | 199 | # Encode payload as urlbase64 |
4aa48d33 | 200 | payload64="$(printf '%s' "${2}" | urlbase64)" |
61f0b7ed | 201 | |
c6e60302 | 202 | # Retrieve nonce from acme-server |
994803bf | 203 | nonce="$(http_request head "${CA}" | grep Replay-Nonce: | awk -F ': ' '{print $2}' | tr -d '\n\r')" |
61f0b7ed | 204 | |
c6e60302 | 205 | # Build header with just our public key and algorithm information |
61f0b7ed LS |
206 | header='{"alg": "RS256", "jwk": {"e": "'"${pubExponent64}"'", "kty": "RSA", "n": "'"${pubMod64}"'"}}' |
207 | ||
c6e60302 | 208 | # Build another header which also contains the previously received nonce and encode it as urlbase64 |
61f0b7ed | 209 | protected='{"alg": "RS256", "jwk": {"e": "'"${pubExponent64}"'", "kty": "RSA", "n": "'"${pubMod64}"'"}, "nonce": "'"${nonce}"'"}' |
4aa48d33 | 210 | protected64="$(printf '%s' "${protected}" | urlbase64)" |
61f0b7ed | 211 | |
c6e60302 | 212 | # Sign header with nonce and our payload with our private key and encode signature as urlbase64 |
0e92aba2 | 213 | signed64="$(printf '%s' "${protected64}.${payload64}" | openssl dgst -sha256 -sign "${PRIVATE_KEY}" | urlbase64)" |
61f0b7ed | 214 | |
c6e60302 | 215 | # Send header + extended header + payload + signature to the acme-server |
61f0b7ed LS |
216 | data='{"header": '"${header}"', "protected": "'"${protected64}"'", "payload": "'"${payload64}"'", "signature": "'"${signed64}"'"}' |
217 | ||
3a9e97f9 | 218 | http_request post "${1}" "${data}" |
61f0b7ed LS |
219 | } |
220 | ||
1446fd88 | 221 | # Create certificate for domain(s) |
61f0b7ed LS |
222 | sign_domain() { |
223 | domain="${1}" | |
1f65a335 | 224 | altnames="${*}" |
1446fd88 | 225 | timestamp="$(date +%s)" |
81882a64 | 226 | |
579e2316 | 227 | echo " + Signing domains..." |
09729186 | 228 | if [[ -z "${CA_NEW_AUTHZ}" ]] || [[ -z "${CA_NEW_CERT}" ]]; then |
1446fd88 | 229 | _exiterr "Certificate authority doesn't allow certificate signing" |
09729186 | 230 | fi |
3cc587c2 | 231 | |
3dbbb461 | 232 | # If there is no existing certificate directory => make it |
5b29db97 | 233 | if [[ ! -e "${BASEDIR}/certs/${domain}" ]]; then |
1446fd88 | 234 | echo " + Creating new directory ${BASEDIR}/certs/${domain} ..." |
5b29db97 | 235 | mkdir -p "${BASEDIR}/certs/${domain}" |
3dbbb461 MG |
236 | fi |
237 | ||
f343dc11 | 238 | privkey="privkey.pem" |
3dbbb461 | 239 | # generate a new private key if we need or want one |
5b29db97 | 240 | if [[ ! -f "${BASEDIR}/certs/${domain}/privkey.pem" ]] || [[ "${PRIVATE_KEY_RENEW}" = "yes" ]]; then |
579e2316 | 241 | echo " + Generating private key..." |
f343dc11 | 242 | privkey="privkey-${timestamp}.pem" |
7f8ea450 | 243 | _openssl genrsa -out "${BASEDIR}/certs/${domain}/privkey-${timestamp}.pem" "${KEYSIZE}" |
61f0b7ed LS |
244 | fi |
245 | ||
c6e60302 | 246 | # Generate signing request config and the actual signing request |
1446fd88 | 247 | echo " + Generating signing request..." |
c6e60302 | 248 | SAN="" |
1446fd88 | 249 | for altname in ${altnames}; do |
c6e60302 LS |
250 | SAN+="DNS:${altname}, " |
251 | done | |
cd13a9c2 | 252 | SAN="${SAN%%, }" |
3bc1cf91 LS |
253 | local tmp_openssl_cnf |
254 | tmp_openssl_cnf="$(mktemp)" | |
255 | cat "${OPENSSL_CNF}" > "${tmp_openssl_cnf}" | |
9e79c066 LS |
256 | printf "[SAN]\nsubjectAltName=%s" "${SAN}" >> "${tmp_openssl_cnf}" |
257 | 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}" | |
258 | rm -f "${tmp_openssl_cnf}" | |
c6e60302 LS |
259 | |
260 | # Request and respond to challenges | |
1446fd88 | 261 | for altname in ${altnames}; do |
c6e60302 | 262 | # Ask the acme-server for new challenge token and extract them from the resulting json block |
579e2316 | 263 | echo " + Requesting challenge for ${altname}..." |
09729186 | 264 | response="$(signed_request "${CA_NEW_AUTHZ}" '{"resource": "new-authz", "identifier": {"type": "dns", "value": "'"${altname}"'"}}')" |
61f0b7ed | 265 | |
1446fd88 | 266 | challenges="$(printf '%s\n' "${response}" | grep -Eo '"challenges":[^\[]*\[[^]]*]')" |
526843d6 SR |
267 | repl=$'\n''{' # fix syntax highlighting in Vim |
268 | challenge="$(printf "%s" "${challenges//\{/${repl}}" | grep 'http-01')" | |
09729186 LS |
269 | challenge_token="$(printf '%s' "${challenge}" | get_json_string_value token | sed 's/[^A-Za-z0-9_\-]/_/g')" |
270 | challenge_uri="$(printf '%s' "${challenge}" | get_json_string_value uri)" | |
61f0b7ed | 271 | |
dd5f36e5 | 272 | if [[ -z "${challenge_token}" ]] || [[ -z "${challenge_uri}" ]]; then |
1446fd88 | 273 | _exiterr "Can't retrieve challenges (${response})" |
abb95693 LS |
274 | fi |
275 | ||
c6e60302 | 276 | # Challenge response consists of the challenge token and the thumbprint of our public certificate |
61f0b7ed LS |
277 | keyauth="${challenge_token}.${thumbprint}" |
278 | ||
c6e60302 | 279 | # Store challenge response in well-known location and make world-readable (so that a webserver can access it) |
4aa48d33 | 280 | printf '%s' "${keyauth}" > "${WELLKNOWN}/${challenge_token}" |
2b5df371 | 281 | chmod a+r "${WELLKNOWN}/${challenge_token}" |
61f0b7ed | 282 | |
b33f1288 | 283 | # Wait for hook script to deploy the challenge if used |
1446fd88 | 284 | [[ -n "${HOOK}" ]] && ${HOOK} "deploy_challenge" "${altname}" "${challenge_token}" "${keyauth}" |
b33f1288 | 285 | |
1446fd88 | 286 | # Ask the acme-server to verify our challenge and wait until it is no longer pending |
579e2316 | 287 | echo " + Responding to challenge for ${altname}..." |
61f0b7ed LS |
288 | result="$(signed_request "${challenge_uri}" '{"resource": "challenge", "keyAuthorization": "'"${keyauth}"'"}')" |
289 | ||
09729186 | 290 | status="$(printf '%s\n' "${result}" | get_json_string_value status)" |
61f0b7ed | 291 | |
dd5f36e5 | 292 | while [[ "${status}" = "pending" ]]; do |
c6e60302 | 293 | sleep 1 |
3a9e97f9 | 294 | status="$(http_request get "${challenge_uri}" | get_json_string_value status)" |
61f0b7ed LS |
295 | done |
296 | ||
00837b86 | 297 | rm -f "${WELLKNOWN}/${challenge_token}" |
81882a64 | 298 | |
ab301951 E |
299 | # Wait for hook script to clean the challenge if used |
300 | if [[ -n "${HOOK}" ]] && [[ -n "${challenge_token}" ]]; then | |
301 | ${HOOK} "clean_challenge" "${altname}" "${challenge_token}" "${keyauth}" | |
302 | fi | |
81882a64 | 303 | |
76a37834 | 304 | if [[ "${status}" = "valid" ]]; then |
579e2316 | 305 | echo " + Challenge is valid!" |
76a37834 | 306 | else |
1446fd88 | 307 | _exiterr "Challenge is invalid! (returned: ${status})" |
76a37834 | 308 | fi |
61f0b7ed LS |
309 | done |
310 | ||
b7439a83 | 311 | # Finally request certificate from the acme-server and store it in cert-${timestamp}.pem and link from cert.pem |
579e2316 | 312 | echo " + Requesting certificate..." |
f343dc11 | 313 | csr64="$(openssl req -in "${BASEDIR}/certs/${domain}/cert-${timestamp}.csr" -outform DER | urlbase64)" |
09729186 | 314 | crt64="$(signed_request "${CA_NEW_CERT}" '{"resource": "new-cert", "csr": "'"${csr64}"'"}' | openssl base64 -e)" |
85da9090 SR |
315 | crt_path="${BASEDIR}/certs/${domain}/cert-${timestamp}.pem" |
316 | printf -- '-----BEGIN CERTIFICATE-----\n%s\n-----END CERTIFICATE-----\n' "${crt64}" > "${crt_path}" | |
1446fd88 LS |
317 | |
318 | # Try to load the certificate to detect corruption | |
a4e7c43a | 319 | echo " + Checking certificate..." |
10cf2299 | 320 | _openssl x509 -text < "${crt_path}" |
329acb58 LS |
321 | |
322 | # Create fullchain.pem | |
1eb6f6d2 LS |
323 | echo " + Creating fullchain.pem..." |
324 | cat "${crt_path}" > "${BASEDIR}/certs/${domain}/fullchain-${timestamp}.pem" | |
3a9e97f9 | 325 | http_request get "$(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 | 326 | if ! grep -q "BEGIN CERTIFICATE" "${BASEDIR}/certs/${domain}/chain-${timestamp}.pem"; then |
a733f789 LS |
327 | openssl x509 -in "${BASEDIR}/certs/${domain}/chain-${timestamp}.pem" -inform DER -out "${BASEDIR}/certs/${domain}/chain-${timestamp}.pem" -outform PEM |
328 | fi | |
a733f789 | 329 | cat "${BASEDIR}/certs/${domain}/chain-${timestamp}.pem" >> "${BASEDIR}/certs/${domain}/fullchain-${timestamp}.pem" |
329acb58 | 330 | |
1446fd88 LS |
331 | # Update symlinks |
332 | [[ "${privkey}" = "privkey.pem" ]] || ln -sf "privkey-${timestamp}.pem" "${BASEDIR}/certs/${domain}/privkey.pem" | |
f343dc11 | 333 | |
1446fd88 LS |
334 | ln -sf "chain-${timestamp}.pem" "${BASEDIR}/certs/${domain}/chain.pem" |
335 | ln -sf "fullchain-${timestamp}.pem" "${BASEDIR}/certs/${domain}/fullchain.pem" | |
3f6ff8f7 SR |
336 | ln -sf "cert-${timestamp}.csr" "${BASEDIR}/certs/${domain}/cert.csr" |
337 | ln -sf "cert-${timestamp}.pem" "${BASEDIR}/certs/${domain}/cert.pem" | |
f343dc11 | 338 | |
c24843c6 | 339 | # Wait for hook script to clean the challenge and to deploy cert if used |
1446fd88 | 340 | [[ -n "${HOOK}" ]] && ${HOOK} "deploy_cert" "${domain}" "${BASEDIR}/certs/${domain}/privkey.pem" "${BASEDIR}/certs/${domain}/cert.pem" "${BASEDIR}/certs/${domain}/fullchain.pem" |
c24843c6 | 341 | |
342 | unset challenge_token | |
579e2316 | 343 | echo " + Done!" |
61f0b7ed LS |
344 | } |
345 | ||
0a859a19 | 346 | # Usage: --cron (-c) |
083c6736 | 347 | # Description: Sign/renew non-existant/changed/expiring certificates. |
8f6c2328 | 348 | command_sign_domains() { |
9f66bfdb LS |
349 | init_system |
350 | ||
8f6c2328 | 351 | if [[ -n "${PARAM_DOMAIN:-}" ]]; then |
8f6c2328 | 352 | DOMAINS_TXT="$(mktemp)" |
93cd114f LS |
353 | printf -- "${PARAM_DOMAIN}" > "${DOMAINS_TXT}" |
354 | elif [[ -e "${BASEDIR}/domains.txt" ]]; then | |
355 | DOMAINS_TXT="${BASEDIR}/domains.txt" | |
356 | else | |
357 | _exiterr "domains.txt not found and --domain not given" | |
8f6c2328 | 358 | fi |
93cd114f | 359 | |
81882a64 | 360 | # Generate certificates for all domains found in domains.txt. Check if existing certificate are about to expire |
760b6894 | 361 | <"${DOMAINS_TXT}" sed 's/^[[:space:]]*//g;s/[[:space:]]*$//g' | grep -vE '^(#|$)' | while read -r line; do |
81882a64 | 362 | domain="$(printf '%s\n' "${line}" | cut -d' ' -f1)" |
8f6c2328 | 363 | morenames="$(printf '%s\n' "${line}" | cut -s -d' ' -f2-)" |
81882a64 | 364 | cert="${BASEDIR}/certs/${domain}/cert.pem" |
f9126627 | 365 | |
2d097c92 MG |
366 | force_renew="${PARAM_FORCE:-no}" |
367 | ||
8f6c2328 MG |
368 | if [[ -z "${morenames}" ]];then |
369 | echo "Processing ${domain}" | |
370 | else | |
93cd114f | 371 | echo "Processing ${domain} with alternative names: ${morenames}" |
8f6c2328 MG |
372 | fi |
373 | ||
81882a64 | 374 | if [[ -e "${cert}" ]]; then |
93cd114f | 375 | printf " + Checking domain name(s) of existing cert..." |
2d097c92 MG |
376 | |
377 | certnames="$(openssl x509 -in "${cert}" -text -noout | grep DNS: | sed 's/DNS://g' | tr -d ' ' | tr ',' '\n' | sort -u | tr '\n' ' ' | sed 's/ $//')" | |
378 | givennames="$(echo "${domain}" "${morenames}"| tr ' ' '\n' | sort -u | tr '\n' ' ' | sed 's/ $//' | sed 's/^ //')" | |
379 | ||
380 | if [[ "${certnames}" = "${givennames}" ]]; then | |
381 | echo " unchanged." | |
382 | else | |
383 | echo " changed!" | |
384 | echo " + Domain name(s) are not matching!" | |
385 | echo " + Names in old certificate: ${certnames}" | |
386 | echo " + Configured names: ${givennames}" | |
387 | echo " + Forcing renew." | |
388 | force_renew="yes" | |
389 | fi | |
390 | fi | |
391 | ||
392 | if [[ -e "${cert}" ]]; then | |
393 | echo " + Checking expire date of existing cert..." | |
81882a64 | 394 | valid="$(openssl x509 -enddate -noout -in "${cert}" | cut -d= -f2- )" |
8221727a | 395 | |
93cd114f | 396 | printf " + Valid till %s " "${valid}" |
81882a64 | 397 | if openssl x509 -checkend $((RENEW_DAYS * 86400)) -noout -in "${cert}"; then |
93cd114f | 398 | printf "(Longer than %d days). " "${RENEW_DAYS}" |
2d097c92 MG |
399 | if [[ "${force_renew}" = "yes" ]]; then |
400 | echo "Ignoring because renew was forced!" | |
8f6c2328 MG |
401 | else |
402 | echo "Skipping!" | |
403 | continue | |
404 | fi | |
405 | else | |
406 | echo "(Less than ${RENEW_DAYS} days). Renewing!" | |
81882a64 | 407 | fi |
81882a64 | 408 | fi |
8221727a | 409 | |
81882a64 | 410 | # shellcheck disable=SC2086 |
93cd114f | 411 | sign_domain ${line} |
e4666acb | 412 | done || true |
f13eaa7f | 413 | |
8f6c2328 | 414 | # remove temporary domains.txt file if used |
93cd114f LS |
415 | [[ -n "${PARAM_DOMAIN:-}" ]] && rm -f "${DOMAINS_TXT}" |
416 | ||
417 | exit 0 | |
81882a64 | 418 | } |
3390080c | 419 | |
0a859a19 LS |
420 | # Usage: --revoke (-r) path/to/cert.pem |
421 | # Description: Revoke specified certificate | |
81882a64 | 422 | command_revoke() { |
9f66bfdb LS |
423 | init_system |
424 | ||
3dcfa8b4 LS |
425 | [[ -n "${CA_REVOKE_CERT}" ]] || _exiterr "Certificate authority doesn't allow certificate revocation." |
426 | ||
81882a64 | 427 | cert="${1}" |
c7018036 MG |
428 | if [[ -L "${cert}" ]]; then |
429 | # follow symlink and use real certificate name (so we move the real file and not the symlink at the end) | |
3bc1cf91 LS |
430 | local link_target |
431 | link_target="$(readlink -n "${cert}")" | |
432 | if [[ "${link_target}" =~ ^/ ]]; then | |
c7018036 MG |
433 | cert="${link_target}" |
434 | else | |
435 | cert="$(dirname "${cert}")/${link_target}" | |
436 | fi | |
437 | fi | |
3dcfa8b4 LS |
438 | [[ -f "${cert}" ]] || _exiterr "Could not find certificate ${cert}" |
439 | ||
81882a64 | 440 | echo "Revoking ${cert}" |
3dcfa8b4 | 441 | |
81882a64 LS |
442 | cert64="$(openssl x509 -in "${cert}" -inform PEM -outform DER | urlbase64)" |
443 | response="$(signed_request "${CA_REVOKE_CERT}" '{"resource": "revoke-cert", "certificate": "'"${cert64}"'"}')" | |
3dcfa8b4 | 444 | # if there is a problem with our revoke request _request (via signed_request) will report this and "exit 1" out |
81882a64 | 445 | # so if we are here, it is safe to assume the request was successful |
3dcfa8b4 LS |
446 | echo " + Done." |
447 | echo " + Renaming certificate to ${cert}-revoked" | |
81882a64 LS |
448 | mv -f "${cert}" "${cert}-revoked" |
449 | } | |
c24843c6 | 450 | |
0a859a19 LS |
451 | # Usage: --help (-h) |
452 | # Description: Show help text | |
81882a64 | 453 | command_help() { |
7727f5ea LS |
454 | printf "Usage: %s [-h] [command [argument]] [parameter [argument]] [parameter [argument]] ...\n\n" "${0}" |
455 | printf "Default command: help\n\n" | |
0a859a19 | 456 | echo "Commands:" |
760b6894 | 457 | grep -e '^[[:space:]]*# Usage:' -e '^[[:space:]]*# Description:' -e '^command_.*()[[:space:]]*{' "${0}" | while read -r usage; read -r description; read -r command; do |
31111265 | 458 | if [[ ! "${usage}" =~ Usage ]] || [[ ! "${description}" =~ Description ]] || [[ ! "${command}" =~ ^command_ ]]; then |
7727f5ea | 459 | _exiterr "Error generating help text." |
0a859a19 | 460 | fi |
7727f5ea | 461 | printf " %-32s %s\n" "${usage##"# Usage: "}" "${description##"# Description: "}" |
0a859a19 | 462 | done |
7727f5ea | 463 | printf -- "\nParameters:\n" |
760b6894 | 464 | grep -E -e '^[[:space:]]*# PARAM_Usage:' -e '^[[:space:]]*# PARAM_Description:' "${0}" | while read -r usage; read -r description; do |
31111265 | 465 | if [[ ! "${usage}" =~ Usage ]] || [[ ! "${description}" =~ Description ]]; then |
7727f5ea | 466 | _exiterr "Error generating help text." |
0a859a19 | 467 | fi |
7727f5ea | 468 | printf " %-32s %s\n" "${usage##"# PARAM_Usage: "}" "${description##"# PARAM_Description: "}" |
0a859a19 | 469 | done |
81882a64 | 470 | } |
063d28a6 | 471 | |
1ab6a436 LS |
472 | # Usage: --env (-e) |
473 | # Description: Output configuration variables for use in other scripts | |
474 | command_env() { | |
475 | echo "# letsencrypt.sh configuration" | |
9f66bfdb LS |
476 | load_config |
477 | typeset -p CA LICENSE HOOK RENEW_DAYS PRIVATE_KEY KEYSIZE WELLKNOWN PRIVATE_KEY_RENEW OPENSSL_CNF CONTACT_EMAIL LOCKFILE | |
1ab6a436 LS |
478 | } |
479 | ||
bc580335 | 480 | # Main method (parses script arguments and calls command_* methods) |
9f66bfdb LS |
481 | main() { |
482 | COMMAND="" | |
483 | set_command() { | |
484 | [[ -z "${COMMAND}" ]] || _exiterr "Only one command can be executed at a time. See help (-h) for more information." | |
485 | COMMAND="${1}" | |
486 | } | |
487 | ||
488 | check_parameters() { | |
489 | if [[ -z "${1:-}" ]]; then | |
490 | echo "The specified command requires additional parameters. See help:" >&2 | |
31111265 LS |
491 | echo >&2 |
492 | command_help >&2 | |
81882a64 | 493 | exit 1 |
9f66bfdb LS |
494 | elif [[ "${1:0:1}" = "-" ]]; then |
495 | _exiterr "Invalid argument: ${1}" | |
496 | fi | |
497 | } | |
579e2316 | 498 | |
9f66bfdb LS |
499 | while (( "${#}" )); do |
500 | case "${1}" in | |
501 | --help|-h) | |
502 | command_help | |
503 | exit 0 | |
504 | ;; | |
579e2316 | 505 | |
9f66bfdb LS |
506 | --env|-e) |
507 | set_command env | |
508 | ;; | |
579e2316 | 509 | |
9f66bfdb LS |
510 | --cron|-c) |
511 | set_command sign_domains | |
512 | ;; | |
513 | ||
514 | --revoke|-r) | |
515 | shift 1 | |
516 | set_command revoke | |
517 | check_parameters "${1:-}" | |
518 | PARAM_REVOKECERT="${1}" | |
519 | ;; | |
5060dea0 | 520 | |
8f6c2328 | 521 | # PARAM_Usage: --domain (-d) domain.tld |
9f66bfdb LS |
522 | # PARAM_Description: Use specified domain name(s) instead of domains.txt entry (one certificate!) |
523 | --domain|-d) | |
524 | shift 1 | |
525 | check_parameters "${1:-}" | |
526 | if [[ -z "${PARAM_DOMAIN:-}" ]]; then | |
527 | PARAM_DOMAIN="${1}" | |
528 | else | |
529 | PARAM_DOMAIN="${PARAM_DOMAIN} ${1}" | |
530 | fi | |
531 | ;; | |
532 | ||
533 | ||
8f6c2328 | 534 | # PARAM_Usage: --force (-x) |
9f66bfdb LS |
535 | # PARAM_Description: Force renew of certificate even if it is longer valid than value in RENEW_DAYS |
536 | --force|-x) | |
537 | PARAM_FORCE="yes" | |
538 | ;; | |
539 | ||
0a859a19 LS |
540 | # PARAM_Usage: --privkey (-p) path/to/key.pem |
541 | # PARAM_Description: Use specified private key instead of account key (useful for revocation) | |
9f66bfdb LS |
542 | --privkey|-p) |
543 | shift 1 | |
544 | check_parameters "${1:-}" | |
545 | PARAM_PRIVATE_KEY="${1}" | |
546 | ;; | |
547 | ||
548 | # PARAM_Usage: --config (-f) path/to/config.sh | |
549 | # PARAM_Description: Use specified config file | |
550 | --config|-f) | |
551 | shift 1 | |
552 | check_parameters "${1:-}" | |
553 | CONFIG="${1}" | |
554 | ;; | |
555 | ||
556 | *) | |
557 | echo "Unknown parameter detected: ${1}" >&2 | |
558 | echo >&2 | |
559 | command_help >&2 | |
560 | exit 1 | |
561 | ;; | |
562 | esac | |
563 | ||
564 | shift 1 | |
565 | done | |
566 | ||
567 | case "${COMMAND}" in | |
568 | env) command_env;; | |
569 | sign_domains) command_sign_domains;; | |
570 | revoke) command_revoke "${PARAM_REVOKECERT}";; | |
571 | *) command_help; exit1;; | |
81882a64 | 572 | esac |
9f66bfdb | 573 | } |
81882a64 | 574 | |
9f66bfdb LS |
575 | # Check for missing dependencies |
576 | check_dependencies | |
577 | ||
578 | # Run script | |
579 | main "${@:-}" |