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206 lines
6.8 KiB
206 lines
6.8 KiB
#!/usr/bin/env sh
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## Will be called by acme.sh to add the txt record to your api system.
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## returns 0 means success, otherwise error.
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## Author: thewer <github at thewer.com>
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## GitHub: https://github.com/gitwer/acme.sh
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##
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## Environment Variables Required:
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##
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## DO_API_KEY="75310dc4ca779ac39a19f6355db573b49ce92ae126553ebd61ac3a3ae34834cc"
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##
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##################### Public functions #####################
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## Create the text record for validation.
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## Usage: fulldomain txtvalue
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## EG: "_acme-challenge.www.other.domain.com" "XKrxpRBosdq0HG9i01zxXp5CPBs"
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dns_dgon_add() {
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fulldomain="$(echo "$1" | _lower_case)"
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txtvalue=$2
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_info "Using digitalocean dns validation - add record"
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_debug fulldomain "$fulldomain"
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_debug txtvalue "$txtvalue"
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## save the env vars (key and domain split location) for later automated use
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_saveaccountconf DO_API_KEY "$DO_API_KEY"
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## split the domain for DO API
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if ! _get_base_domain "$fulldomain"; then
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_err "domain not found in your account for addition"
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return 1
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fi
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_debug _sub_domain "$_sub_domain"
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_debug _domain "$_domain"
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## Set the header with our post type and key auth key
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export _H1="Content-Type: application/json"
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export _H2="Authorization: Bearer $DO_API_KEY"
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PURL='https://api.digitalocean.com/v2/domains/'$_domain'/records'
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PBODY='{"type":"TXT","name":"'$_sub_domain'","data":"'$txtvalue'"}'
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_debug PURL "$PURL"
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_debug PBODY "$PBODY"
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## the create request - post
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## args: BODY, URL, [need64, httpmethod]
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response="$(_post "$PBODY" "$PURL")"
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## check response
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if [ "$?" != "0" ]; then
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_err "error in response: $response"
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return 1
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fi
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_debug2 response "$response"
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## finished correctly
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return 0
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}
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## Remove the txt record after validation.
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## Usage: fulldomain txtvalue
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## EG: "_acme-challenge.www.other.domain.com" "XKrxpRBosdq0HG9i01zxXp5CPBs"
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dns_dgon_rm() {
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fulldomain="$(echo "$1" | _lower_case)"
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txtvalue=$2
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_info "Using digitalocean dns validation - remove record"
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_debug fulldomain "$fulldomain"
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_debug txtvalue "$txtvalue"
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## split the domain for DO API
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if ! _get_base_domain "$fulldomain"; then
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_err "domain not found in your account for removal"
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return 1
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fi
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_debug _sub_domain "$_sub_domain"
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_debug _domain "$_domain"
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## Set the header with our post type and key auth key
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export _H1="Content-Type: application/json"
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export _H2="Authorization: Bearer $DO_API_KEY"
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## get URL for the list of domains
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## may get: "links":{"pages":{"last":".../v2/domains/DOM/records?page=2","next":".../v2/domains/DOM/records?page=2"}}
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GURL="https://api.digitalocean.com/v2/domains/$_domain/records"
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## while we dont have a record ID we keep going
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while [ -z "$record" ]; do
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## 1) get the URL
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## the create request - get
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## args: URL, [onlyheader, timeout]
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domain_list="$(_get "$GURL")"
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## 2) find record
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## check for what we are looing for: "type":"A","name":"$_sub_domain"
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record="$(echo "$domain_list" | _egrep_o "\"id\"\s*\:\s*\"*\d+\"*[^}]*\"name\"\s*\:\s*\"$_sub_domain\"[^}]*\"data\"\s*\:\s*\"$txtvalue\"")"
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## 3) check record and get next page
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if [ -z "$record" ]; then
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## find the next page if we dont have a match
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nextpage="$(echo "$domain_list" | _egrep_o "\"links\".*" | _egrep_o "\"next\".*" | _egrep_o "http.*page\=\d+")"
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if [ -z "$nextpage" ]; then
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_err "no record and no nextpage in digital ocean DNS removal"
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return 1
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fi
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_debug2 nextpage "$nextpage"
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GURL="$nextpage"
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fi
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## we break out of the loop when we have a record
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done
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## we found the record
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rec_id="$(echo "$record" | _egrep_o "id\"\s*\:\s*\"*\d+" | _egrep_o "\d+")"
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_debug rec_id "$rec_id"
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## delete the record
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## delete URL for removing the one we dont want
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DURL="https://api.digitalocean.com/v2/domains/$_domain/records/$rec_id"
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## the create request - delete
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## args: BODY, URL, [need64, httpmethod]
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response="$(_post "" "$DURL" "" "DELETE")"
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## check response (sort of)
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if [ "$?" != "0" ]; then
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_err "error in remove response: $response"
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return 1
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fi
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_debug2 response "$response"
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## finished correctly
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return 0
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}
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##################### Private functions below #####################
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## Split the domain provided into the "bade domain" and the "start prefix".
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## This function searches for the longest subdomain in your account
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## for the full domain given and splits it into the base domain (zone)
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## and the prefix/record to be added/removed
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## USAGE: fulldomain
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## EG: "_acme-challenge.two.three.four.domain.com"
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## returns
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## _sub_domain="_acme-challenge.two"
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## _domain="three.four.domain.com" *IF* zone "three.four.domain.com" exists
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## if only "domain.com" exists it will return
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## _sub_domain="_acme-challenge.two.three.four"
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## _domain="domain.com"
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_get_base_domain() {
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# args
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fulldomain="$(echo "$1" | tr '[:upper:]' '[:lower:]')"
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_debug fulldomain "$fulldomain"
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# domain max legal length = 253
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MAX_DOM=255
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## get a list of domains for the account to check thru
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## Set the headers
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export _H1="Content-Type: application/json"
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export _H2="Authorization: Bearer $DO_API_KEY"
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_debug DO_API_KEY "$DO_API_KEY"
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## get URL for the list of domains
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## havent seen this request paginated, tested with 18 domains (more requres manual requests with DO)
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DOMURL="https://api.digitalocean.com/v2/domains"
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## get the domain list (DO gives basically a full XFER!)
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domain_list="$(_get "$DOMURL")"
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## check response
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if [ "$?" != "0" ]; then
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_err "error in domain_list response: $domain_list"
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return 1
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fi
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_debug2 domain_list "$domain_list"
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## for each shortening of our $fulldomain, check if it exists in the $domain_list
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## can never start on 1 (aka whole $fulldomain) as $fulldomain starts with "_acme-challenge"
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i=2
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while [ $i -gt 0 ]; do
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## get next longest domain
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_domain=$(printf "%s" "$fulldomain" | cut -d . -f "$i"-"$MAX_DOM")
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## check we got something back from our cut (or are we at the end)
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if [ -z "$_domain" ]; then
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## we got to the end of the domain - invalid domain
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_err "domain not found in DigitalOcean account"
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return 1
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fi
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## we got part of a domain back - grep it out
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found="$(echo "$domain_list" | _egrep_o "\"name\"\s*\:\s*\"$_domain\"")"
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## check if it exists
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if [ ! -z "$found" ]; then
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## exists - exit loop returning the parts
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sub_point=$(_math $i - 1)
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_sub_domain=$(printf "%s" "$fulldomain" | cut -d . -f 1-"$sub_point")
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_debug _domain "$_domain"
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_debug _sub_domain "$_sub_domain"
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return 0
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fi
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## increment cut point $i
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i=$(_math $i + 1)
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done
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## we went through the entire domain zone list and dint find one that matched
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## doesnt look like we can add in the record
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_err "domain not found in DigitalOcean account, but we should never get here"
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return 1
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}
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