diff --git a/dns_scripts/dns_freedns.sh b/dns_scripts/dns_freedns.sh
new file mode 100644
index 0000000..a6571e1
--- /dev/null
+++ b/dns_scripts/dns_freedns.sh
@@ -0,0 +1,702 @@
+#!/usr/bin/env sh
+
+#This file name is "dns_freedns.sh"
+#So, here must be a method dns_freedns_add()
+#Which will be called by acme.sh to add the txt record to your api system.
+#returns 0 means success, otherwise error.
+#
+#Author: David Kerr
+#Report Bugs here: https://github.com/dkerr64/acme.sh
+#or here... https://github.com/Neilpang/acme.sh/issues/2305
+#
+######## Public functions #####################
+
+# Export FreeDNS userid and password in following variables...
+# FREEDNS_User=username
+# FREEDNS_Password=password
+# login cookie is saved in acme account config file so userid / pw
+# need to be set only when changed.
+
+#Usage: dns_freedns_add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_freedns_add() {
+ fulldomain="_acme-challenge.$1"
+ txtvalue="$2"
+ FREEDNS_COOKIE="$(cat $(dirname "$(readlink -f "$0")")/freednscookie.dat)"
+
+ echo "Info: Add TXT record using FreeDNS"
+ #echo "Debug: fulldomain: $fulldomain"
+ #echo "Debug: txtvalue: $txtvalue"
+
+ if [ -z "$FREEDNS_User" ] || [ -z "$FREEDNS_Password" ]; then
+ FREEDNS_User=""
+ FREEDNS_Password=""
+ if [ -z "$FREEDNS_COOKIE" ]; then
+ echo "ERROR: You did not specify the FreeDNS username and password yet."
+ echo "ERROR: Please export as FREEDNS_User / FREEDNS_Password and try again."
+ return 1
+ fi
+ using_cached_cookies="true"
+ else
+ FREEDNS_COOKIE="$(_freedns_login "$FREEDNS_User" "$FREEDNS_Password")"
+ if [ -z "$FREEDNS_COOKIE" ]; then
+ return 1
+ fi
+ using_cached_cookies="false"
+ fi
+
+ #echo "Debug: FreeDNS login cookies: $FREEDNS_COOKIE (cached = $using_cached_cookies)"
+
+ echo "$FREEDNS_COOKIE">$(dirname "$(readlink -f "$0")")/freednscookie.dat
+
+ # We may have to cycle through the domain name to find the
+ # TLD that we own...
+ i=1
+ wmax="$(echo "$fulldomain" | tr '.' ' ' | wc -w)"
+ while [ "$i" -lt "$wmax" ]; do
+ # split our full domain name into two parts...
+ sub_domain="$(echo "$fulldomain" | cut -d. -f -"$i")"
+ i="$(_math "$i" + 1)"
+ top_domain="$(echo "$fulldomain" | cut -d. -f "$i"-100)"
+ #echo "Debug: sub_domain: $sub_domain"
+ #echo "Debug: top_domain: $top_domain"
+
+ DNSdomainid="$(_freedns_domain_id "$top_domain")"
+ if [ "$?" = "0" ]; then
+ echo "Info:Domain $top_domain found at FreeDNS, domain_id $DNSdomainid"
+ break
+ else
+ echo "Info:Domain $top_domain not found at FreeDNS, try with next level of TLD"
+ fi
+ done
+
+ if [ -z "$DNSdomainid" ]; then
+ # If domain ID is empty then something went wrong (top level
+ # domain not found at FreeDNS).
+ echo "ERROR: Domain $top_domain not found at FreeDNS"
+ return 1
+ fi
+
+ # Add in new TXT record with the value provided
+ #echo "Debug: Adding TXT record for $fulldomain, $txtvalue"
+ _freedns_add_txt_record "$FREEDNS_COOKIE" "$DNSdomainid" "$sub_domain" "$txtvalue"
+ return $?
+}
+
+#Usage: fulldomain txtvalue
+#Remove the txt record after validation.
+dns_freedns_rm() {
+ fulldomain="_acme-challenge.$1"
+ txtvalue="$2"
+
+ echo "Info:Delete TXT record using FreeDNS"
+ #echo "Debug: fulldomain: $fulldomain"
+ #echo "Debug: txtvalue: $txtvalue"
+
+ # Need to read cookie from conf file again in case new value set
+ # during login to FreeDNS when TXT record was created.
+ FREEDNS_COOKIE="$(cat $(dirname "$(readlink -f "$0")")/freednscookie.dat)"
+ #echo "Debug: FreeDNS login cookies: $FREEDNS_COOKIE"
+
+ TXTdataid="$(_freedns_data_id "$fulldomain" "TXT")"
+ if [ "$?" != "0" ]; then
+ echo "Info:Cannot delete TXT record for $fulldomain, record does not exist at FreeDNS"
+ return 1
+ fi
+ #echo "Debug: Data ID's found, $TXTdataid"
+
+ # now we have one (or more) TXT record data ID's. Load the page
+ # for that record and search for the record txt value. If match
+ # then we can delete it.
+ lines="$(echo "$TXTdataid" | wc -l)"
+ #echo "Debug: Found $lines TXT data records for $fulldomain"
+ i=0
+ while [ "$i" -lt "$lines" ]; do
+ i="$(_math "$i" + 1)"
+ dataid="$(echo "$TXTdataid" | sed -n "${i}p")"
+ #echo "Debug: $dataid"
+
+ htmlpage="$(_freedns_retrieve_data_page "$FREEDNS_COOKIE" "$dataid")"
+ if [ "$?" != "0" ]; then
+ if [ "$using_cached_cookies" = "true" ]; then
+ echo "ERROR: Has your FreeDNS username and password changed? If so..."
+ echo "ERROR: Please export as FREEDNS_User / FREEDNS_Password and try again."
+ fi
+ return 1
+ fi
+
+ echo "$htmlpage" | grep "value=\""$txtvalue"\"" >/dev/null
+ if [ "$?" = "0" ]; then
+ # Found a match... delete the record and return
+ echo "Info:Deleting TXT record for $fulldomain, $txtvalue"
+ _freedns_delete_txt_record "$FREEDNS_COOKIE" "$dataid"
+ return $?
+ fi
+ done
+
+ # If we get this far we did not find a match
+ # Not necessarily an error, but log anyway.
+ echo "Info:Cannot delete TXT record for $fulldomain, $txtvalue. Does not exist at FreeDNS"
+ return 0
+}
+
+#################### Private functions below ##################################
+
+# usage: _freedns_login username password
+# print string "cookie=value" etc.
+# returns 0 success
+_freedns_login() {
+ export _H1="Accept-Language:en-US"
+ username="$1"
+ password="$2"
+ url="https://freedns.afraid.org/zc.php?step=2"
+
+ #echo "Debug: Login to FreeDNS as user $username"
+ data="username=$(printf '%s' "$username" | _url_encode)&password=$(printf '%s' "$password" | _url_encode)&submit=Login&action=auth"
+ #echo "$data"
+
+ if [ -z "$HTTP_HEADER" ] || ! touch "$HTTP_HEADER"; then
+ HTTP_HEADER="$(_mktemp)"
+ fi
+ htmlpage="$(curl -L --silent --dump-header $HTTP_HEADER -X POST -H "$_H1" -H "$_H2" --data "$data" "$url")"
+
+ if [ "$?" != "0" ]; then
+ echo "ERROR: FreeDNS login failed for user $username bad RC from _post"
+ return 1
+ fi
+
+ cookies="$(grep -i '^Set-Cookie.*dns_cookie.*$' "$HTTP_HEADER" | _head_n 1 | tr -d "\r\n" | cut -d " " -f 2)"
+
+ # if cookies is not empty then logon successful
+ if [ -z "$cookies" ]; then
+ #echo "Debug3: htmlpage: $htmlpage"
+ echo "ERROR: FreeDNS login failed for user $username. Check $HTTP_HEADER file"
+ return 1
+ fi
+
+ printf "%s" "$cookies"
+ return 0
+}
+
+# usage _freedns_retrieve_subdomain_page login_cookies
+# echo page retrieved (html)
+# returns 0 success
+_freedns_retrieve_subdomain_page() {
+ export _H1="Cookie:$1"
+ export _H2="Accept-Language:en-US"
+ url="https://freedns.afraid.org/subdomain/"
+
+ #echo "Debug: Retrieve subdomain page from FreeDNS"
+
+ htmlpage="$(curl -L --silent -H "$_H1" -H "$_H2" "$url")"
+
+ if [ "$?" != "0" ]; then
+ echo "ERROR: FreeDNS retrieve subdomains failed bad RC from _get"
+ return 1
+ elif [ -z "$htmlpage" ]; then
+ echo "ERROR: FreeDNS returned empty subdomain page"
+ return 1
+ fi
+
+ #echo "Debug3: htmlpage: $htmlpage"
+
+ printf "%s" "$htmlpage"
+ return 0
+}
+
+# usage _freedns_retrieve_data_page login_cookies data_id
+# echo page retrieved (html)
+# returns 0 success
+_freedns_retrieve_data_page() {
+ export _H1="Cookie:$1"
+ export _H2="Accept-Language:en-US"
+ data_id="$2"
+ url="https://freedns.afraid.org/subdomain/edit.php?data_id=$2"
+
+ #echo "Debug: Retrieve data page for ID $data_id from FreeDNS"
+
+ htmlpage="$(curl -L --silent -H "$_H1" -H "$_H2" "$url")"
+
+ if [ "$?" != "0" ]; then
+ echo "ERROR: FreeDNS retrieve data page failed bad RC from _get"
+ return 1
+ elif [ -z "$htmlpage" ]; then
+ echo "ERROR: FreeDNS returned empty data page"
+ return 1
+ fi
+
+ #echo "Debug3: htmlpage: $htmlpage"
+
+ printf "%s" "$htmlpage"
+ return 0
+}
+
+# usage _freedns_add_txt_record login_cookies domain_id subdomain value
+# returns 0 success
+_freedns_add_txt_record() {
+ export _H1="Cookie:$1"
+ export _H2="Accept-Language:en-US"
+ domain_id="$2"
+ subdomain="$3"
+ value="$(printf '%s' "$4" | _url_encode)"
+ url="https://freedns.afraid.org/subdomain/save.php?step=2"
+
+ if [ -z "$HTTP_HEADER" ] || ! touch "$HTTP_HEADER"; then
+ HTTP_HEADER="$(_mktemp)"
+ fi
+ htmlpage="$(curl -L --silent --dump-header $HTTP_HEADER -X POST -H "$_H1" -H "$_H2" --data "type=TXT&domain_id=$domain_id&subdomain=$subdomain&address=%22$value%22&send=Save%21" "$url")"
+
+ if [ "$?" != "0" ]; then
+ echo "ERROR: FreeDNS failed to add TXT record for $subdomain bad RC from _post"
+ return 1
+ elif ! grep "200 OK" "$HTTP_HEADER" >/dev/null; then
+ #echo "Debug3: htmlpage: $(cat $HTTP_HEADER)"
+ echo "ERROR: FreeDNS failed to add TXT record for $subdomain. Check $HTTP_HEADER file"
+ return 1
+ elif _contains "$htmlpage" "security code was incorrect"; then
+ #echo "Debug3: htmlpage: $htmlpage"
+ echo "ERROR: FreeDNS failed to add TXT record for $subdomain as FreeDNS requested security code"
+ echo "ERROR: Note that you cannot use automatic DNS validation for FreeDNS public domains"
+ return 1
+ fi
+
+ #echo "Debug3: htmlpage: $htmlpage"
+ echo "Info:Added acme challenge TXT record for $fulldomain at FreeDNS"
+ return 0
+}
+
+# usage _freedns_delete_txt_record login_cookies data_id
+# returns 0 success
+_freedns_delete_txt_record() {
+ export _H1="Cookie:$1"
+ export _H2="Accept-Language:en-US"
+ data_id="$2"
+ url="https://freedns.afraid.org/subdomain/delete2.php"
+
+ htmlheader="$(curl -L --silent -I -H "$_H1" -H "$_H2" "$url?data_id%5B%5D=$data_id&submit=delete+selected")"
+
+ if [ "$?" != "0" ]; then
+ echo "ERROR: FreeDNS failed to delete TXT record for $data_id bad RC from _get"
+ return 1
+ elif ! _contains "$htmlheader" "200 OK"; then
+ #echo "Debug2: htmlheader: $htmlheader"
+ echo "ERROR: FreeDNS failed to delete TXT record $data_id"
+ return 1
+ fi
+
+ echo "Info:Deleted acme challenge TXT record for $fulldomain at FreeDNS"
+ return 0
+}
+
+# usage _freedns_domain_id domain_name
+# echo the domain_id if found
+# return 0 success
+_freedns_domain_id() {
+ # Start by escaping the dots in the domain name
+ search_domain="$(echo "$1" | sed 's/\./\\./g')"
+
+ # Sometimes FreeDNS does not return the subdomain page but rather
+ # returns a page regarding becoming a premium member. This usually
+ # happens after a period of inactivity. Immediately trying again
+ # returns the correct subdomain page. So, we will try twice to
+ # load the page and obtain our domain ID
+ attempts=2
+ while [ "$attempts" -gt "0" ]; do
+ attempts="$(_math "$attempts" - 1)"
+
+ htmlpage="$(_freedns_retrieve_subdomain_page "$FREEDNS_COOKIE")"
+ if [ "$?" != "0" ]; then
+ if [ "$using_cached_cookies" = "true" ]; then
+ echo "ERROR: Has your FreeDNS username and password changed? If so..."
+ echo "ERROR: Please export as FREEDNS_User / FREEDNS_Password and try again."
+ fi
+ return 1
+ fi
+
+ domain_id="$(echo "$htmlpage" | tr -d " \t\r\n\v\f" | sed 's//@
/g' | tr '@' '\n' \
+ | grep "| $search_domain | \|$search_domain(.*) | " \
+ | sed -n 's/.*\(edit\.php?edit_domain_id=[0-9a-zA-Z]*\).*/\1/p' \
+ | cut -d = -f 2)"
+ # The above beauty extracts domain ID from the html page...
+ # strip out all blank space and new lines. Then insert newlines
+ # before each table row
+ # search for the domain within each row (which may or may not have
+ # a text string in brackets (.*) after it.
+ # And finally extract the domain ID.
+ if [ -n "$domain_id" ]; then
+ printf "%s" "$domain_id"
+ return 0
+ fi
+ #echo "Debug:Domain $search_domain not found. Retry loading subdomain page ($attempts attempts remaining)"
+ done
+ #echo "Debug:Domain $search_domain not found after retry"
+ return 1
+}
+
+# usage _freedns_data_id domain_name record_type
+# echo the data_id(s) if found
+# return 0 success
+_freedns_data_id() {
+ # Start by escaping the dots in the domain name
+ search_domain="$(echo "$1" | sed 's/\./\\./g')"
+ record_type="$2"
+
+ # Sometimes FreeDNS does not return the subdomain page but rather
+ # returns a page regarding becoming a premium member. This usually
+ # happens after a period of inactivity. Immediately trying again
+ # returns the correct subdomain page. So, we will try twice to
+ # load the page and obtain our domain ID
+ attempts=2
+ while [ "$attempts" -gt "0" ]; do
+ attempts="$(_math "$attempts" - 1)"
+
+ htmlpage="$(_freedns_retrieve_subdomain_page "$FREEDNS_COOKIE")"
+ if [ "$?" != "0" ]; then
+ if [ "$using_cached_cookies" = "true" ]; then
+ echo "ERROR: Has your FreeDNS username and password changed? If so..."
+ echo "ERROR: Please export as FREEDNS_User / FREEDNS_Password and try again."
+ fi
+ return 1
+ fi
+
+ data_id="$(echo "$htmlpage" | tr -d " \t\r\n\v\f" | sed 's/
/@
/g' | tr '@' '\n' \
+ | grep "$record_type" \
+ | grep "$search_domain" \
+ | sed -n 's/.*\(edit\.php?data_id=[0-9a-zA-Z]*\).*/\1/p' \
+ | cut -d = -f 2)"
+ # The above beauty extracts data ID from the html page...
+ # strip out all blank space and new lines. Then insert newlines
+ # before each table row
+ # search for the record type withing each row (e.g. TXT)
+ # search for the domain within each row (which is within a
+ # anchor. And finally extract the domain ID.
+ if [ -n "$data_id" ]; then
+ printf "%s" "$data_id"
+ return 0
+ fi
+ #echo "Debug:Domain $search_domain not found. Retry loading subdomain page ($attempts attempts remaining)"
+ done
+ #echo "Debug:Domain $search_domain not found after retry"
+ return 1
+}
+
+#### BEGIN things shamefully ripped from https://github.com/Neilpang/acme.sh/blob/master/acme.sh
+
+#_ascii_hex str
+#this can only process ascii chars, should only be used when od command is missing as a backup way.
+_ascii_hex() {
+ _debug2 "Using _ascii_hex"
+ _str="$1"
+ _str_len=${#_str}
+ _h_i=1
+ while [ "$_h_i" -le "$_str_len" ]; do
+ _str_c="$(printf "%s" "$_str" | cut -c "$_h_i")"
+ printf " %02x" "'$_str_c"
+ _h_i="$(_math "$_h_i" + 1)"
+ done
+}
+
+#stdin output hexstr splited by one space
+#input:"abc"
+#output: " 61 62 63"
+_hex_dump() {
+ if _exists od; then
+ od -A n -v -t x1 | tr -s " " | sed 's/ $//' | tr -d "\r\t\n"
+ elif _exists hexdump; then
+ hexdump -v -e '/1 ""' -e '/1 " %02x" ""'
+ elif _exists xxd; then
+ xxd -ps -c 20 -i | sed "s/ 0x/ /g" | tr -d ",\n" | tr -s " "
+ else
+ str=$(cat)
+ _ascii_hex "$str"
+ fi
+}
+
+#url encode, no-preserved chars
+#A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
+#41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51 52 53 54 55 56 57 58 59 5a
+
+#a b c d e f g h i j k l m n o p q r s t u v w x y z
+#61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70 71 72 73 74 75 76 77 78 79 7a
+
+#0 1 2 3 4 5 6 7 8 9 - _ . ~
+#30 31 32 33 34 35 36 37 38 39 2d 5f 2e 7e
+
+#stdin stdout
+_url_encode() {
+ _hex_str=$(_hex_dump)
+ for _hex_code in $_hex_str; do
+ #upper case
+ case "${_hex_code}" in
+ "41")
+ printf "%s" "A"
+ ;;
+ "42")
+ printf "%s" "B"
+ ;;
+ "43")
+ printf "%s" "C"
+ ;;
+ "44")
+ printf "%s" "D"
+ ;;
+ "45")
+ printf "%s" "E"
+ ;;
+ "46")
+ printf "%s" "F"
+ ;;
+ "47")
+ printf "%s" "G"
+ ;;
+ "48")
+ printf "%s" "H"
+ ;;
+ "49")
+ printf "%s" "I"
+ ;;
+ "4a")
+ printf "%s" "J"
+ ;;
+ "4b")
+ printf "%s" "K"
+ ;;
+ "4c")
+ printf "%s" "L"
+ ;;
+ "4d")
+ printf "%s" "M"
+ ;;
+ "4e")
+ printf "%s" "N"
+ ;;
+ "4f")
+ printf "%s" "O"
+ ;;
+ "50")
+ printf "%s" "P"
+ ;;
+ "51")
+ printf "%s" "Q"
+ ;;
+ "52")
+ printf "%s" "R"
+ ;;
+ "53")
+ printf "%s" "S"
+ ;;
+ "54")
+ printf "%s" "T"
+ ;;
+ "55")
+ printf "%s" "U"
+ ;;
+ "56")
+ printf "%s" "V"
+ ;;
+ "57")
+ printf "%s" "W"
+ ;;
+ "58")
+ printf "%s" "X"
+ ;;
+ "59")
+ printf "%s" "Y"
+ ;;
+ "5a")
+ printf "%s" "Z"
+ ;;
+
+ #lower case
+ "61")
+ printf "%s" "a"
+ ;;
+ "62")
+ printf "%s" "b"
+ ;;
+ "63")
+ printf "%s" "c"
+ ;;
+ "64")
+ printf "%s" "d"
+ ;;
+ "65")
+ printf "%s" "e"
+ ;;
+ "66")
+ printf "%s" "f"
+ ;;
+ "67")
+ printf "%s" "g"
+ ;;
+ "68")
+ printf "%s" "h"
+ ;;
+ "69")
+ printf "%s" "i"
+ ;;
+ "6a")
+ printf "%s" "j"
+ ;;
+ "6b")
+ printf "%s" "k"
+ ;;
+ "6c")
+ printf "%s" "l"
+ ;;
+ "6d")
+ printf "%s" "m"
+ ;;
+ "6e")
+ printf "%s" "n"
+ ;;
+ "6f")
+ printf "%s" "o"
+ ;;
+ "70")
+ printf "%s" "p"
+ ;;
+ "71")
+ printf "%s" "q"
+ ;;
+ "72")
+ printf "%s" "r"
+ ;;
+ "73")
+ printf "%s" "s"
+ ;;
+ "74")
+ printf "%s" "t"
+ ;;
+ "75")
+ printf "%s" "u"
+ ;;
+ "76")
+ printf "%s" "v"
+ ;;
+ "77")
+ printf "%s" "w"
+ ;;
+ "78")
+ printf "%s" "x"
+ ;;
+ "79")
+ printf "%s" "y"
+ ;;
+ "7a")
+ printf "%s" "z"
+ ;;
+ #numbers
+ "30")
+ printf "%s" "0"
+ ;;
+ "31")
+ printf "%s" "1"
+ ;;
+ "32")
+ printf "%s" "2"
+ ;;
+ "33")
+ printf "%s" "3"
+ ;;
+ "34")
+ printf "%s" "4"
+ ;;
+ "35")
+ printf "%s" "5"
+ ;;
+ "36")
+ printf "%s" "6"
+ ;;
+ "37")
+ printf "%s" "7"
+ ;;
+ "38")
+ printf "%s" "8"
+ ;;
+ "39")
+ printf "%s" "9"
+ ;;
+ "2d")
+ printf "%s" "-"
+ ;;
+ "5f")
+ printf "%s" "_"
+ ;;
+ "2e")
+ printf "%s" "."
+ ;;
+ "7e")
+ printf "%s" "~"
+ ;;
+ #other hex
+ *)
+ printf '%%%s' "$_hex_code"
+ ;;
+ esac
+ done
+}
+
+_exists() {
+ cmd="$1"
+ if [ -z "$cmd" ]; then
+ _usage "Usage: _exists cmd"
+ return 1
+ fi
+
+ if eval type type >/dev/null 2>&1; then
+ eval type "$cmd" >/dev/null 2>&1
+ elif command >/dev/null 2>&1; then
+ command -v "$cmd" >/dev/null 2>&1
+ else
+ which "$cmd" >/dev/null 2>&1
+ fi
+ ret="$?"
+ #echo "Debug3: $cmd exists=$ret"
+ return $ret
+}
+
+_head_n() {
+ head -n "$1"
+}
+
+_mktemp() {
+ if _exists mktemp; then
+ if mktemp 2>/dev/null; then
+ return 0
+ elif _contains "$(mktemp 2>&1)" "-t prefix" && mktemp -t "$PROJECT_NAME" 2>/dev/null; then
+ #for Mac osx
+ return 0
+ fi
+ fi
+ if [ -d "/tmp" ]; then
+ echo "/tmp/${PROJECT_NAME}wefADf24sf.$(_time).tmp"
+ return 0
+ elif [ "$LE_TEMP_DIR" ] && mkdir -p "$LE_TEMP_DIR"; then
+ echo "/$LE_TEMP_DIR/wefADf24sf.$(_time).tmp"
+ return 0
+ fi
+ _err "Can not create temp file."
+}
+
+#a + b
+_math() {
+ _m_opts="$@"
+ printf "%s" "$(($_m_opts))"
+}
+
+_contains() {
+ _str="$1"
+ _sub="$2"
+ echo "$_str" | grep -- "$_sub" >/dev/null 2>&1
+}
+
+##Now actually do something with that function
+case "$1" in
+
+ add)
+ dns_freedns_add $2 $3
+ ;;
+ rm)
+ dns_freedns_rm $2 $3
+ ;;
+esac