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270 lines
6.8 KiB
270 lines
6.8 KiB
#!/usr/bin/env sh
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# shellcheck disable=SC2034
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dns_mythic_beasts_info='Mythic-Beasts.com
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Site: Mythic-Beasts.com
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Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi2#dns_mythic_beasts
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Options:
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MB_AK API Key
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MB_AS API Secret
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Issues: github.com/acmesh-official/acme.sh/issues/3848
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'
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# Mythic Beasts is a long-standing UK service provider using standards-based OAuth2 authentication
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# To test: ./acme.sh --dns dns_mythic_beasts --test --debug 1 --output-insecure --issue --domain domain.com
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# Cannot retest once cert is issued
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# OAuth2 tokens only valid for 300 seconds so we do not store
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# NOTE: This will remove all TXT records matching the fulldomain, not just the added ones (_acme-challenge.www.domain.com)
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# Test OAuth2 credentials
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#MB_AK="aaaaaaaaaaaaaaaa"
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#MB_AS="bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
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# URLs
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MB_API='https://api.mythic-beasts.com/dns/v2/zones'
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MB_AUTH='https://auth.mythic-beasts.com/login'
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######## Public functions #####################
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#Usage: add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
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dns_mythic_beasts_add() {
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fulldomain=$1
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txtvalue=$2
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_info "MYTHIC BEASTS Adding record $fulldomain = $txtvalue"
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if ! _initAuth; then
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return 1
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fi
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if ! _get_root "$fulldomain"; then
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return 1
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fi
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# method path body_data
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if _mb_rest POST "$_domain/records/$_sub_domain/TXT" "$txtvalue"; then
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if _contains "$response" "1 records added"; then
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_info "Added, verifying..."
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# Max 120 seconds to publish
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for i in $(seq 1 6); do
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# Retry on error
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if ! _mb_rest GET "$_domain/records/$_sub_domain/TXT?verify"; then
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_sleep 20
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else
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_info "Record published!"
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return 0
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fi
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done
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else
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_err "\n$response"
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fi
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fi
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_err "Add txt record error."
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return 1
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}
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#Usage: rm _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
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dns_mythic_beasts_rm() {
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fulldomain=$1
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txtvalue=$2
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_info "MYTHIC BEASTS Removing record $fulldomain = $txtvalue"
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if ! _initAuth; then
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return 1
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fi
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if ! _get_root "$fulldomain"; then
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return 1
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fi
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# method path body_data
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if _mb_rest DELETE "$_domain/records/$_sub_domain/TXT" "$txtvalue"; then
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_info "Record removed"
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return 0
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fi
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_err "Remove txt record error."
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return 1
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}
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#################### Private functions below ##################################
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#Possible formats:
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# _acme-challenge.www.example.com
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# _acme-challenge.example.com
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# _acme-challenge.example.co.uk
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# _acme-challenge.www.example.co.uk
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# _acme-challenge.sub1.sub2.www.example.co.uk
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# sub1.sub2.example.co.uk
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# example.com
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# example.co.uk
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#returns
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# _sub_domain=_acme-challenge.www
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# _domain=domain.com
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_get_root() {
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domain=$1
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i=1
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p=1
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_debug "Detect the root zone"
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while true; do
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h=$(printf "%s" "$domain" | cut -d . -f "$i"-100)
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if [ -z "$h" ]; then
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_err "Domain exhausted"
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return 1
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fi
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# Use the status errors to find the domain, continue on 403 Access denied
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# method path body_data
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_mb_rest GET "$h/records"
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ret="$?"
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if [ "$ret" -eq 0 ]; then
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_sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-"$p")
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_domain="$h"
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_debug _sub_domain "$_sub_domain"
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_debug _domain "$_domain"
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return 0
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elif [ "$ret" -eq 1 ]; then
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return 1
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fi
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p=$i
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i=$(_math "$i" + 1)
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if [ "$i" -gt 50 ]; then
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break
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fi
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done
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_err "Domain too long"
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return 1
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}
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_initAuth() {
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MB_AK="${MB_AK:-$(_readaccountconf_mutable MB_AK)}"
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MB_AS="${MB_AS:-$(_readaccountconf_mutable MB_AS)}"
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if [ -z "$MB_AK" ] || [ -z "$MB_AS" ]; then
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MB_AK=""
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MB_AS=""
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_err "Please specify an OAuth2 Key & Secret"
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return 1
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fi
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_saveaccountconf_mutable MB_AK "$MB_AK"
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_saveaccountconf_mutable MB_AS "$MB_AS"
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if ! _oauth2; then
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return 1
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fi
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_info "Checking authentication"
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_secure_debug access_token "$MB_TK"
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_sleep 1
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# GET a list of zones
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# method path body_data
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if ! _mb_rest GET ""; then
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_err "The token is invalid"
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return 1
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fi
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_info "Token OK"
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return 0
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}
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# Github appears to use an outbound proxy for requests which means subsequent requests may not have the same
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# source IP. The standard Mythic Beasts OAuth2 tokens are tied to an IP, meaning github test requests fail
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# authentication. This is a work around using an undocumented MB API to obtain a token not tied to an
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# IP just for the github tests.
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_oauth2() {
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if [ "$GITHUB_ACTIONS" = "true" ]; then
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_oauth2_github
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else
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_oauth2_std
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fi
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return $?
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}
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_oauth2_std() {
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# HTTP Basic Authentication
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_H1="Authorization: Basic $(echo "$MB_AK:$MB_AS" | _base64)"
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_H2="Accepts: application/json"
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export _H1 _H2
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body="grant_type=client_credentials"
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_info "Getting OAuth2 token..."
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# body url [needbase64] [POST|PUT|DELETE] [ContentType]
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response="$(_post "$body" "$MB_AUTH" "" "POST" "application/x-www-form-urlencoded")"
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if _contains "$response" "\"token_type\":\"bearer\""; then
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MB_TK="$(echo "$response" | _egrep_o "access_token\":\"[^\"]*\"" | cut -d : -f 2 | tr -d '"')"
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if [ -z "$MB_TK" ]; then
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_err "Unable to get access_token"
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_err "\n$response"
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return 1
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fi
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else
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_err "OAuth2 token_type not Bearer"
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_err "\n$response"
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return 1
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fi
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_debug2 response "$response"
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return 0
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}
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_oauth2_github() {
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_H1="Accepts: application/json"
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export _H1
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body="{\"login\":{\"handle\":\"$MB_AK\",\"pass\":\"$MB_AS\",\"floating\":1}}"
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_info "Getting Floating token..."
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# body url [needbase64] [POST|PUT|DELETE] [ContentType]
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response="$(_post "$body" "$MB_AUTH" "" "POST" "application/json")"
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MB_TK="$(echo "$response" | _egrep_o "\"token\":\"[^\"]*\"" | cut -d : -f 2 | tr -d '"')"
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if [ -z "$MB_TK" ]; then
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_err "Unable to get token"
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_err "\n$response"
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return 1
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fi
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_debug2 response "$response"
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return 0
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}
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# method path body_data
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_mb_rest() {
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# URL encoded body for single API operations
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m="$1"
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ep="$2"
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data="$3"
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if [ -z "$ep" ]; then
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_mb_url="$MB_API"
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else
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_mb_url="$MB_API/$ep"
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fi
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_H1="Authorization: Bearer $MB_TK"
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_H2="Accepts: application/json"
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export _H1 _H2
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if [ "$data" ] || [ "$m" = "POST" ] || [ "$m" = "PUT" ] || [ "$m" = "DELETE" ]; then
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# body url [needbase64] [POST|PUT|DELETE] [ContentType]
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response="$(_post "data=$data" "$_mb_url" "" "$m" "application/x-www-form-urlencoded")"
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else
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response="$(_get "$_mb_url")"
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fi
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if [ "$?" != "0" ]; then
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_err "Request error"
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return 1
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fi
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header="$(cat "$HTTP_HEADER")"
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status="$(echo "$header" | _egrep_o "^HTTP[^ ]* .*$" | cut -d " " -f 2-100 | tr -d "\f\n")"
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code="$(echo "$status" | _egrep_o "^[0-9]*")"
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if [ "$code" -ge 400 ] || _contains "$response" "\"error\"" || _contains "$response" "invalid_client"; then
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_err "error $status"
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_err "\n$response"
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_debug "\n$header"
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return 2
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fi
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_debug2 response "$response"
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return 0
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}
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