Major overhaul, should be more reliable now.
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2219ce7538
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147
mkcerts.sh
Normal file → Executable file
147
mkcerts.sh
Normal file → Executable file
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@ -19,7 +19,7 @@ function hex2bin { cat | sed 's/\([0-9a-f]\{2\}\)/\\\\\\x\1/g' | xargs printf; }
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# UTILS
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function getCAURLs
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function get_CA_URLs
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{
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declare -A CAs
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CAs[LE]=https://acme-v02.api.letsencrypt.org/directory
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@ -31,11 +31,13 @@ function getCAURLs
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CAs[sslcom_ecc]=https://acme.ssl.com/sslcom-dv-ecc
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CAs[jewgle]=https://dv.acme-v02.api.pki.goog/directory
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CAs[jewgletest]=https://dv.acme-v02.test-api.pki.goog/directory
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endpoints=$(curl -s ${CAs[$1]})
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export endpoints # I don't know if this works
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CA=$1
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endpoints=$(curl -s ${CAs[$CA]})
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export CA
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export endpoints # I don't know if this works, or if it matters
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} # $1=LE
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function readACME
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function read_ACME
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{
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# Extract signature info from key:
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read hex exp <<< $(openssl rsa -in account.key -noout -text | tr -d ': \r\n' | sed -E 's/^.*modulus00([a-f0-9]+)publicExponent[0-9]+\(0x([0-9a-f]+)\).*$/\1 \2/')
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@ -48,16 +50,16 @@ function readACME
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thumb=$(echo -n "$jerk" | tr -d ' ' | short256 | hex2bin | b64u) # How many times can you b64 a bowl of ramen before it begins questioning its existence
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}
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function loadkid
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function load_kid
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{
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kid=$1
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if [ -z "$kid" -a -e "kid" ]; then kid=$(cat kid); fi
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if [ -z "$kid" -a -e "$CA.kid" ]; then kid=$(cat $CA.kid); fi
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if [ -n "$kid" ]; then
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sig='{"alg": "RS256", "kid": "'$kid'"}'
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fi
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}
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function getNonce
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function get_nonce
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{
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# Get a nonce (nigger):
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nonce_resp=$1
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@ -67,86 +69,127 @@ function getNonce
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grep -i 'replay-nonce' <<< "$nonce_resp" | tr -d "\r" | grep -Eo '[0-9a-zA-Z_\-]+$' # Fucking Windows line endings
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}
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# ZONEFILE UTILS
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function czf { sed -i '/_ACME-CHALLENGE/d' "$1"; } # clear zone file
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function szf # setup zone file
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{
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file=$1
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shift
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for tok in $@; do
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echo _ACME-CHALLENGE 300 TXT $(echo -n "$tok.$thumb" | short256 | hex2bin | b64u) >> $file
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done
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}
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function usoa # update SOA
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{
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inc=$(grep -Eo 'SOA [^ ]+ [^ ]+ [0-9]+' $1 | grep -Eo '[0-9]+$')
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sed -ie 's/SOA\t\([^\t]*\)\t\([^\t]*\)\t[0-9]*/SOA \1 \2 '$((inc+1))'/' $1
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}
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# CHALLENGES
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function order
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function complete_challenges
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{
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readACME # get thumb. It fucks up sig but I don't care, sendreq fixes it.
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declare -a urls
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i=0
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doms=$(jq -r '.[]' <<< "$1")
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while read dom; do
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urls[$i]=$(challenge "$(sendreq $dom)") # this is meant to be signed but it seems to work without it...? But sign it just in case it's a test-only thing.
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i=$((i+1))
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done <<< "$doms"
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systemctl reload named # Actually update DNS for real final7
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sleep 120 # Wait for DNS to update. Generally it won't have been requested in ages so it won't be in any caches.
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for url in ${urls[@]}; do
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sendreq $url '{}' | jq '(.validationRecord | map(.hostname) | join(" "))+" "+.status' # need empty dict to tell server to validate challenge, empty body only checks status. Just another certified ACME moment.
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read_ACME # get thumb. It fucks up sig but I don't care, send_req fixes it.
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declare -A chals toks
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urls=$(jq -r '.[]' <<< "$1")
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while read url; do
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read dom chalurl tok <<< "$(send_req $url | jq -r '.identifier.value+" "+(.challenges | .[] | select(.type == "dns-01") | .url+" "+.token)')"
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chals[$dom]="${chals[$dom]}$(base64 -w 0 <<< "$chalurl");"
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toks[$dom]="${toks[$dom]}$(base64 -w 0 <<< "$tok");"
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done <<< "$urls"
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for dom in ${!toks[@]}; do
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apply_challenge $dom ${toks[$dom]}
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done
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sleep 30 # Wait for challenges to complete - the previous call can return before the challenge completes.
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for url in ${urls[@]}; do
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sendreq $url | jq '(.validationRecord | map(.hostname) | join(" "))+" "+.status'
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systemctl reload named # Actually update DNS for real final7
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declare -a pending
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for dom in ${!chals[@]}; do
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IFS=';' read -a chalurls <<< ${chals[$dom]}
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for chalurl in ${chalurls[@]}; do
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sleep 1 # Spam a bit less
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rurl=$(base64 -d <<< $chalurl)
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send_req $rurl '{}' > /dev/null # need empty dict to tell server to validate challenge, empty body only checks status. Just another certified ACME moment.
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pending+=("$rurl")
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done
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done
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# now we wait for validations
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dirty=1
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timer=10
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backoff=1
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tick=0
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while [ $dirty -gt 0 ]; do
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dirty=0
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for url in ${pending[@]}; do
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sleep 1
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oof=$(send_req $url)
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oof2=$(jq -r .status <<< "$oof")
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nonce=$(get_nonce) # For some reason checking status doesn't come back with a nonce, or comes back with same nonce.
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if [ $oof2 != valid ]; then dirty=1; fi
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done
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sleep $timer # This gets slower each iteration, to spam the server less
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timer=$(($timer+$backoff))
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tick=$(($tick+1))
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if [ $tick -eq $backoff ]; then tick=0; backoff=$(($backoff+1)); fi
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done
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}
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function challenge
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function apply_challenge
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{
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read dom url tok <<< $(jq -r '.identifier.value+" "+(.challenges | .[] | select(.type == "dns-01") | .url+" "+.token)' <<< "$1")
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tik=$(echo -n "$tok.$thumb" | short256 | hex2bin | b64u)
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dnsname="/var/named/$(ifsrev $dom .).zone"
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inc=$(grep -Eo 'SOA [^ ]+ [^ ]+ [0-9]+' $dnsname | grep -Eo '[0-9]+$')
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if ! grep -i _ACME-CHALLENGE $dnsname > /dev/null; then echo >> $dnsname; echo "_ACME-CHALLENGE 300 TXT aa" >> $dnsname; fi
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sed -i -e 's/^_ACME-CHALLENGE 300 TXT .*$/_ACME-CHALLENGE 300 TXT '$tik'/' -e 's/SOA\t\([^\t]*\)\t\([^\t]*\)\t[0-9]*/SOA \1 \2 '$((inc+1))'/' $dnsname # Actually update the DNS
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echo $url # Then give back the verification URL to be used later
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dnsname="/var/named/$(ifsrev $1 .).zone"
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czf $dnsname
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szf $dnsname $(tr ';' '\n' <<< $2 | base64 -d | tr '\n' ' ') # Actually update the DNS
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usoa $dnsname # And don't forget to update the SOA number
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}
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# CORE ACTIONS
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function genACMEkey { openssl genrsa -traditional 2048 > account.key; }
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function gen_ACME_key { openssl genrsa -traditional 2048 > account.key; }
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function registerAcc
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function register_acc
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{
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# Create account:
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readACME
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read_ACME
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url=$(echo $endpoints | jq -r .newAccount)
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req='{"termsOfServiceAgreed": true, "contact": ["mailto:zerglingman@fedora.email"]}'
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out=$(sendreq "$url" "$req" yes)
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req='{"termsOfServiceAgreed": true, "contact": ["mailto:zerglingman@fedora.email"], "externalAccountBinding":"zerglingman@fedora.email"}'
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out=$(send_req "$url" "$req" yes)
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echo $out >&2
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loc=$(grep -i 'location' <<< "$out" | grep -io http.*$)
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loadkid $loc
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load_kid $loc
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echo $loc
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}
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function getcert
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function get_cert
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{
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conf=$1
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shift
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url=$(echo $endpoints | jq -r .newOrder)
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req='{"identifiers": ['
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for n in $@; do
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req=$req'{"type": "dns", "value": "'$n'"}, '
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req=$req'{"type": "dns", "value": "'$n'"}, {"type": "dns", "value": "*.'$n'"}, ' # Do not put wildcard domains in; this will do it automatically. You still need to put them in the nuconf.
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done
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req=${req:0:-2}']}'
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order=$(sendreq $url "$req")
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order=$(send_req $url "$req" yes)
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headers=$(sed -n 1,/^$/p <<< "$order")
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order=$(sed 1,/^$/d <<< "$order")
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# I can just access the headers lol
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orderurl=$(grep -i location <<< "$req_heads" | grep -io http.*$)
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# No I can't, assfucked by subshells again
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orderurl=$(grep -i location <<< "$headers" | grep -io http.*$)
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auths=$(jq '.authorizations' <<< "$order")
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finalise=$(jq -r '.finalize' <<< "$order")
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order "$auths"
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complete_challenges "$auths"
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openssl req -new -key live.key -out live.csr -sha256 -noenc -config $conf -outform DER
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# I guess I should just include the conf file
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sendreq $finalise '{"csr":"'$(cat live.csr | b64u)'"}'
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certurl=$(sendreq $orderurl | jq -r .certificate)
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send_req $finalise '{"csr":"'$(cat live.csr | b64u)'"}'
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certurl=$(send_req $orderurl | jq -r .certificate)
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curl $certurl > out.crt
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}
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# SERVER COMMUNICATION
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function sendreq
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function send_req
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{
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loadkid # Just to make sure the sig is set correctly. It won't overwrite it unless it should be.
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load_kid # Just to make sure the sig is set correctly. It won't overwrite it unless it should be.
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url=$1; if [ -n "$2" ]; then req=$(b64u <<< "$2"); else req=""; fi
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if [ -z "$nonce" ]; then nonce=$(getNonce); fi
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if [ -z "$nonce" ]; then nonce=$(get_nonce); fi
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data=$(jq '.+{"nonce":"'$nonce'","url":"'$url'"}' <<< "$sig" | tr -d '\r\n' | tr -s ' ' ' ' | sed -e 's/{ /{/g' -e 's/ }/}/g') # Keys don't need to be sorted here, but they still are.
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# I don't know why the URL has to be in the body that is sent to the URL.
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# ACME is a terrible protocol.
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@ -156,14 +199,14 @@ function sendreq
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req_resp=$(curl -isH "Content-type:application/jose+json" $url --data "$mexican" | tr -d "\r") # Here is the line that does the work
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req_heads=$(sed -n 1,/^$/p <<< "$req_resp")
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req_resp=$(sed 1,/^$/d <<< "$req_resp")
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nonce=$(getNonce "$req_heads")
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if [ -n "$3" ]; then echo "$req_heads"; fi
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nonce=$(get_nonce "$req_heads")
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if [ -n "$3" ]; then printf "$req_heads"; echo; echo; fi
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echo $req_resp
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}
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# MAIN
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getCAURLs $1
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get_CA_URLs $1
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shift
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loadkid
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$*
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load_kid
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$@
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