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Merge pull request #2285 from dkerr64/FreeDNS 

Fixes to dns_freedns.sh for multi-part top level domain names
pull/2319/head
neil 6 years ago
committed by GitHub
parent
3508e1e6d5 924e0261f9
commit
c74686a197
No known key found for this signature in database GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 176 additions and 131 deletions
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  1. 307
      dnsapi/dns_freedns.sh

307
dnsapi/dns_freedns.sh
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@ -7,6 +7,7 @@
# #
#Author: David Kerr #Author: David Kerr
#Report Bugs here: https://github.com/dkerr64/acme.sh #Report Bugs here: https://github.com/dkerr64/acme.sh
#or here... https://github.com/Neilpang/acme.sh/issues/2305
# #
######## Public functions ##################### ######## Public functions #####################
@ -46,76 +47,34 @@ dns_freedns_add() {
_saveaccountconf FREEDNS_COOKIE "$FREEDNS_COOKIE" _saveaccountconf FREEDNS_COOKIE "$FREEDNS_COOKIE"
# split our full domain name into two parts...
i="$(echo "$fulldomain" | tr '.' ' ' | wc -w)"
i="$(_math "$i" - 1)"
top_domain="$(echo "$fulldomain" | cut -d. -f "$i"-100)"
i="$(_math "$i" - 1)"
sub_domain="$(echo "$fulldomain" | cut -d. -f -"$i")"
_debug "top_domain: $top_domain"
_debug "sub_domain: $sub_domain"
# Sometimes FreeDNS does not return the subdomain page but rather
# returns a page regarding becoming a premium member. This usually
# happens after a period of inactivity. Immediately trying again
# returns the correct subdomain page. So, we will try twice to
# load the page and obtain our domain ID
attempts=2
while [ "$attempts" -gt "0" ]; do
attempts="$(_math "$attempts" - 1)"
htmlpage="$(_freedns_retrieve_subdomain_page "$FREEDNS_COOKIE")"
if [ "$?" != "0" ]; then
if [ "$using_cached_cookies" = "true" ]; then
_err "Has your FreeDNS username and password changed? If so..."
_err "Please export as FREEDNS_User / FREEDNS_Password and try again."
fi
return 1
fi
subdomain_csv="$(echo "$htmlpage" | tr -d "\n\r" | _egrep_o '<form .*</form>' | sed 's/<tr>/@<tr>/g' | tr '@' '\n' | grep edit.php | grep "$top_domain")"
_debug3 "subdomain_csv: $subdomain_csv"
# The above beauty ends with striping out rows that do not have an
# href to edit.php and do not have the top domain we are looking for.
# So all we should be left with is CSV of table of subdomains we are
# interested in.
# Now we have to read through this table and extract the data we need
lines="$(echo "$subdomain_csv" | wc -l)"
i=0
found=0
DNSdomainid=""
while [ "$i" -lt "$lines" ]; do
i="$(_math "$i" + 1)"
line="$(echo "$subdomain_csv" | sed -n "${i}p")"
_debug2 "line: $line"
if [ $found = 0 ] && _contains "$line" "<td>$top_domain</td>"; then
# this line will contain DNSdomainid for the top_domain
DNSdomainid="$(echo "$line" | _egrep_o "edit_domain_id *= *.*>" | cut -d = -f 2 | cut -d '>' -f 1)"
_debug2 "DNSdomainid: $DNSdomainid"
found=1
break
fi
done
if [ -z "$DNSdomainid" ]; then
# If domain ID is empty then something went wrong (top level
# domain not found at FreeDNS).
if [ "$attempts" = "0" ]; then
# exhausted maximum retry attempts
_err "Domain $top_domain not found at FreeDNS"
return 1
fi
else
# break out of the 'retry' loop... we have found our domain ID
# We may have to cycle through the domain name to find the
# TLD that we own...
i=1
wmax="$(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)"
_debug "sub_domain: $sub_domain"
_debug "top_domain: $top_domain"
DNSdomainid="$(_freedns_domain_id "$top_domain")"
if [ "$?" = "0" ]; then
_info "Domain $top_domain found at FreeDNS, domain_id $DNSdomainid"
break break
else
_info "Domain $top_domain not found at FreeDNS, try with next level of TLD"
fi fi
_info "Domain $top_domain not found at FreeDNS"
_info "Retry loading subdomain page ($attempts attempts remaining)"
done done
if [ -z "$DNSdomainid" ]; then
# If domain ID is empty then something went wrong (top level
# domain not found at FreeDNS).
_err "Domain $top_domain not found at FreeDNS"
return 1
fi
# Add in new TXT record with the value provided # Add in new TXT record with the value provided
_debug "Adding TXT record for $fulldomain, $txtvalue" _debug "Adding TXT record for $fulldomain, $txtvalue"
_freedns_add_txt_record "$FREEDNS_COOKIE" "$DNSdomainid" "$sub_domain" "$txtvalue" _freedns_add_txt_record "$FREEDNS_COOKIE" "$DNSdomainid" "$sub_domain" "$txtvalue"
@ -134,80 +93,47 @@ dns_freedns_rm() {
# Need to read cookie from conf file again in case new value set # Need to read cookie from conf file again in case new value set
# during login to FreeDNS when TXT record was created. # during login to FreeDNS when TXT record was created.
# acme.sh does not have a _readaccountconf() function
FREEDNS_COOKIE="$(_read_conf "$ACCOUNT_CONF_PATH" "FREEDNS_COOKIE")"
FREEDNS_COOKIE="$(_readaccountconf "FREEDNS_COOKIE")"
_debug "FreeDNS login cookies: $FREEDNS_COOKIE" _debug "FreeDNS login cookies: $FREEDNS_COOKIE"
# Sometimes FreeDNS does not return the subdomain page but rather
# returns a page regarding becoming a premium member. This usually
# happens after a period of inactivity. Immediately trying again
# returns the correct subdomain page. So, we will try twice to
# load the page and obtain our TXT record.
attempts=2
while [ "$attempts" -gt "0" ]; do
attempts="$(_math "$attempts" - 1)"
htmlpage="$(_freedns_retrieve_subdomain_page "$FREEDNS_COOKIE")"
TXTdataid="$(_freedns_data_id "$fulldomain" "TXT")"
if [ "$?" != "0" ]; then
_info "Cannot delete TXT record for $fulldomain, record does not exist at FreeDNS"
return 1
fi
_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)"
_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")"
_debug "$dataid"
htmlpage="$(_freedns_retrieve_data_page "$FREEDNS_COOKIE" "$dataid")"
if [ "$?" != "0" ]; then if [ "$?" != "0" ]; then
if [ "$using_cached_cookies" = "true" ]; then
_err "Has your FreeDNS username and password changed? If so..."
_err "Please export as FREEDNS_User / FREEDNS_Password and try again."
fi
return 1 return 1
fi fi
subdomain_csv="$(echo "$htmlpage" | tr -d "\n\r" | _egrep_o '<form .*</form>' | sed 's/<tr>/@<tr>/g' | tr '@' '\n' | grep edit.php | grep "$fulldomain")"
_debug3 "subdomain_csv: $subdomain_csv"
# The above beauty ends with striping out rows that do not have an
# href to edit.php and do not have the domain name we are looking for.
# So all we should be left with is CSV of table of subdomains we are
# interested in.
# Now we have to read through this table and extract the data we need
lines="$(echo "$subdomain_csv" | wc -l)"
i=0
found=0
DNSdataid=""
while [ "$i" -lt "$lines" ]; do
i="$(_math "$i" + 1)"
line="$(echo "$subdomain_csv" | sed -n "${i}p")"
_debug3 "line: $line"
DNSname="$(echo "$line" | _egrep_o 'edit.php.*</a>' | cut -d '>' -f 2 | cut -d '<' -f 1)"
_debug2 "DNSname: $DNSname"
if [ "$DNSname" = "$fulldomain" ]; then
DNStype="$(echo "$line" | sed 's/<td/@<td/g' | tr '@' '\n' | sed -n '4p' | cut -d '>' -f 2 | cut -d '<' -f 1)"
_debug2 "DNStype: $DNStype"
if [ "$DNStype" = "TXT" ]; then
DNSdataid="$(echo "$line" | _egrep_o 'data_id=.*' | cut -d = -f 2 | cut -d '>' -f 1)"
_debug2 "DNSdataid: $DNSdataid"
DNSvalue="$(echo "$line" | sed 's/<td/@<td/g' | tr '@' '\n' | sed -n '5p' | cut -d '>' -f 2 | cut -d '<' -f 1)"
if _startswith "$DNSvalue" "&quot;"; then
# remove the quotation from the start
DNSvalue="$(echo "$DNSvalue" | cut -c 7-)"
fi
if _endswith "$DNSvalue" "..."; then
# value was truncated, remove the dot dot dot from the end
DNSvalue="$(echo "$DNSvalue" | sed 's/...$//')"
elif _endswith "$DNSvalue" "&quot;"; then
# else remove the closing quotation from the end
DNSvalue="$(echo "$DNSvalue" | sed 's/......$//')"
fi
_debug2 "DNSvalue: $DNSvalue"
if [ -n "$DNSdataid" ] && _startswith "$txtvalue" "$DNSvalue"; then
# Found a match. But note... Website is truncating the
# value field so we are only testing that part that is not
# truncated. This should be accurate enough.
_debug "Deleting TXT record for $fulldomain, $txtvalue"
_freedns_delete_txt_record "$FREEDNS_COOKIE" "$DNSdataid"
return $?
fi
fi
fi
done
echo "$htmlpage" | grep "value=\"&quot;$txtvalue&quot;\"" >/dev/null
if [ "$?" = "0" ]; then
# Found a match... delete the record and return
_info "Deleting TXT record for $fulldomain, $txtvalue"
_freedns_delete_txt_record "$FREEDNS_COOKIE" "$dataid"
return $?
fi
done done
# If we get this far we did not find a match (after two attempts)
# If we get this far we did not find a match
# Not necessarily an error, but log anyway. # Not necessarily an error, but log anyway.
_debug3 "$subdomain_csv"
_info "Cannot delete TXT record for $fulldomain, $txtvalue. Does not exist at FreeDNS" _info "Cannot delete TXT record for $fulldomain, $txtvalue. Does not exist at FreeDNS"
return 0 return 0
} }
@ -271,6 +197,33 @@ _freedns_retrieve_subdomain_page() {
return 0 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"
_debug "Retrieve data page for ID $data_id from FreeDNS"
htmlpage="$(_get "$url")"
if [ "$?" != "0" ]; then
_err "FreeDNS retrieve data page failed bad RC from _get"
return 1
elif [ -z "$htmlpage" ]; then
_err "FreeDNS returned empty data page"
return 1
fi
_debug3 "htmlpage: $htmlpage"
printf "%s" "$htmlpage"
return 0
}
# usage _freedns_add_txt_record login_cookies domain_id subdomain value # usage _freedns_add_txt_record login_cookies domain_id subdomain value
# returns 0 success # returns 0 success
_freedns_add_txt_record() { _freedns_add_txt_record() {
@ -324,3 +277,95 @@ _freedns_delete_txt_record() {
_info "Deleted acme challenge TXT record for $fulldomain at FreeDNS" _info "Deleted acme challenge TXT record for $fulldomain at FreeDNS"
return 0 return 0
} }
# usage _freedns_domain_id domain_name
# echo the domain_id if found
# return 0 success
_freedns_domain_id() {
# Start by escaping the dots in the domain name
search_domain="$(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
_err "Has your FreeDNS username and password changed? If so..."
_err "Please export as FREEDNS_User / FREEDNS_Password and try again."
fi
return 1
fi
domain_id="$(echo "$htmlpage" | tr -d "[:space:]" | sed 's/<tr>/@<tr>/g' | tr '@' '\n' \
| grep "<td>$search_domain</td>\|<td>$search_domain(.*)</td>" \
| _egrep_o "edit\.php\?edit_domain_id=[0-9a-zA-Z]+" \
| 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 <tr>
# 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
_debug "Domain $search_domain not found. Retry loading subdomain page ($attempts attempts remaining)"
done
_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
_err "Has your FreeDNS username and password changed? If so..."
_err "Please export as FREEDNS_User / FREEDNS_Password and try again."
fi
return 1
fi
data_id="$(echo "$htmlpage" | tr -d "[:space:]" | sed 's/<tr>/@<tr>/g' | tr '@' '\n' \
| grep "<td[a-zA-Z=#]*>$record_type</td>" \
| grep "<ahref.*>$search_domain</a>" \
| _egrep_o "edit\.php\?data_id=[0-9a-zA-Z]+" \
| 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 <tr>
# search for the record type withing each row (e.g. TXT)
# search for the domain within each row (which is within a <a..>
# </a> anchor. And finally extract the domain ID.
if [ -n "$data_id" ]; then
printf "%s" "$data_id"
return 0
fi
_debug "Domain $search_domain not found. Retry loading subdomain page ($attempts attempts remaining)"
done
_debug "Domain $search_domain not found after retry"
return 1
}
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