dnsapi/dns_gdnsdk.sh

   1 #!/usr/bin/env sh
   2 #Author: Herman Sletteng
   3 #Report Bugs here: https://github.com/loial/acme.sh
   4 #
   5 #
   6 # Note, gratisdns requires a login first, so the script needs to handle
   7 # temporary cookies. Since acme.sh _get/_post currently don't directly support
   8 # cookies, I've defined wrapper functions _myget/_mypost to set the headers
   9
  10 GDNSDK_API="https://admin.gratisdns.com"
  11 ########  Public functions #####################
  12 #Usage: dns_gdnsdk_add   _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
  13 dns_gdnsdk_add() {
  14   fulldomain=$1
  15   txtvalue=$2
  16   _info "Using gratisdns.dk"
  17   _debug fulldomain "$fulldomain"
  18   _debug txtvalue "$txtvalue"
  19   if ! _gratisdns_login; then
  20     _err "Login failed!"
  21     return 1
  22   fi
  23   #finding domain zone
  24   if ! _get_domain; then
  25     _err "No matching root domain for $fulldomain found"
  26     return 1
  27   fi
  28   # adding entry
  29   _info "Adding the entry"
  30   _mypost "action=dns_primary_record_added_txt&user_domain=$_domain&name=$fulldomain&txtdata=$txtvalue&ttl=1"
  31   if _successful_update; then return 0; fi
  32   _err "Couldn't create entry!"
  33   return 1
  34 }
  35
  36 #Usage: fulldomain txtvalue
  37 #Remove the txt record after validation.
  38 dns_gdnsdk_rm() {
  39   fulldomain=$1
  40   txtvalue=$2
  41   _info "Using gratisdns.dk"
  42   _debug fulldomain "$fulldomain"
  43   _debug txtvalue "$txtvalue"
  44   if ! _gratisdns_login; then
  45     _err "Login failed!"
  46     return 1
  47   fi
  48   if ! _get_domain; then
  49     _err "No matching root domain for $fulldomain found"
  50     return 1
  51   fi
  52   _findentry "$fulldomain" "$txtvalue"
  53   if [ -z "$_id" ]; then
  54     _info "Entry doesn't exist, nothing to delete"
  55     return 0
  56   fi
  57   _debug "Deleting record..."
  58   _mypost "action=dns_primary_delete_txt&user_domain=$_domain&id=$_id"
  59   # removing entry
  60
  61   if _successful_update; then return 0; fi
  62   _err "Couldn't delete entry!"
  63   return 1
  64 }
  65
  66 ####################  Private functions below ##################################
  67
  68 _checkcredentials() {
  69   GDNSDK_Username="${GDNSDK_Username:-$(_readaccountconf_mutable GDNSDK_Username)}"
  70   GDNSDK_Password="${GDNSDK_Password:-$(_readaccountconf_mutable GDNSDK_Password)}"
  71
  72   if [ -z "$GDNSDK_Username" ] || [ -z "$GDNSDK_Password" ]; then
  73     GDNSDK_Username=""
  74     GDNSDK_Password=""
  75     _err "You haven't specified gratisdns.dk username and password yet."
  76     _err "Please add credentials and try again."
  77     return 1
  78   fi
  79   #save the credentials to the account conf file.
  80   _saveaccountconf_mutable GDNSDK_Username "$GDNSDK_Username"
  81   _saveaccountconf_mutable GDNSDK_Password "$GDNSDK_Password"
  82   return 0
  83 }
  84
  85 _checkcookie() {
  86   GDNSDK_Cookie="${GDNSDK_Cookie:-$(_readaccountconf_mutable GDNSDK_Cookie)}"
  87   if [ -z "$GDNSDK_Cookie" ]; then
  88     _debug "No cached cookie found"
  89     return 1
  90   fi
  91   _myget "action="
  92   if (echo "$_result" | grep -q "logmeout"); then
  93     _debug "Cached cookie still valid"
  94     return 0
  95   fi
  96   _debug "Cached cookie no longer valid"
  97   GDNSDK_Cookie=""
  98   _saveaccountconf_mutable GDNSDK_Cookie "$GDNSDK_Cookie"
  99   return 1
 100 }
 101
 102 _gratisdns_login() {
 103   if ! _checkcredentials; then return 1; fi
 104
 105   if _checkcookie; then
 106     _debug "Already logged in"
 107     return 0
 108   fi
 109   _debug "Logging into GratisDNS with user $GDNSDK_Username"
 110
 111   if ! _mypost "login=$GDNSDK_Username&password=$GDNSDK_Password&action=logmein"; then
 112     _err "GratisDNS login failed for user $GDNSDK_Username bad RC from _post"
 113     return 1
 114   fi
 115
 116   GDNSDK_Cookie="$(grep -A 15 '302 Found' "$HTTP_HEADER" | _egrep_o 'Cookie: [^;]*' | _head_n 1 | cut -d ' ' -f2)"
 117
 118   if [ -z "$GDNSDK_Cookie" ]; then
 119     _err "GratisDNS login failed for user $GDNSDK_Username. Check $HTTP_HEADER file"
 120     return 1
 121   fi
 122   export GDNSDK_Cookie
 123   _saveaccountconf_mutable GDNSDK_Cookie "$GDNSDK_Cookie"
 124   return 0
 125 }
 126
 127 _myget() {
 128   #Adds cookie to request
 129   export _H1="Cookie: $GDNSDK_Cookie"
 130   _result=$(_get "$GDNSDK_API?$1")
 131 }
 132 _mypost() {
 133   #Adds cookie to request
 134   export _H1="Cookie: $GDNSDK_Cookie"
 135   _result=$(_post "$1" "$GDNSDK_API")
 136 }
 137
 138 _get_domain() {
 139   _myget 'action=dns_primarydns'
 140   _domains=$(echo "$_result" | _egrep_o ' domain="[[:alnum:]._-]+' | sed 's/^.*"//')
 141   if [ -z "$_domains" ]; then
 142     _err "Primary domain list not found!"
 143     return 1
 144   fi
 145   for _domain in $_domains; do
 146     if (_endswith "$fulldomain" "$_domain"); then
 147       _debug "Root domain: $_domain"
 148       return 0
 149     fi
 150   done
 151   return 1
 152 }
 153
 154 _successful_update() {
 155   if (echo "$_result" | grep -q 'table-success'); then return 0; fi
 156   return 1
 157 }
 158
 159 _findentry() {
 160   #args    $1: fulldomain, $2: txtvalue
 161   #returns id of dns entry, if it exists
 162   _myget "action=dns_primary_changeDNSsetup&user_domain=$_domain"
 163   _debug3 "_result: $_result"
 164
 165   _tmp_result=$(echo "$_result" | tr -d '\n\r' | _egrep_o "<td>$1</td>\s*<td>$2</td>[^?]*[^&]*&id=[^&]*")
 166   _debug _tmp_result "$_tmp_result"
 167   if [ -z "${_tmp_result:-}" ]; then
 168     _debug "The variable is _tmp_result is not supposed to be empty, there may be something wrong with the script"
 169   fi
 170
 171   _id=$(echo "$_tmp_result" | sed 's/^.*=//')
 172   if [ -n "$_id" ]; then
 173     _debug "Entry found with _id=$_id"
 174     return 0
 175   fi
 176   return 1
 177 }