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freedns: attempt splitting the whole domain
Fixes #1086 Supercedes #1454 Signed-off-by: Joe Groocock <me@frebib.net>
This commit is contained in:
Joe Groocock
parent
49ea6a1bb9
commit
822421f181
@ -51,68 +51,38 @@ dns_freedns_add() {
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# sub_domain is the element before the first dot
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top_domain="$(echo "$fulldomain" | cut -d. -f 2-)"
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sub_domain="$(echo "$fulldomain" | cut -d. -f 1)"
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DNSdomainid=
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while [ -z "$DNSdomainid" ]; do
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_debug "top_domain: $top_domain"
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_debug "sub_domain: $sub_domain"
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# Sometimes FreeDNS does not return the subdomain page but rather
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# returns a page regarding becoming a premium member. This usually
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# happens after a period of inactivity. Immediately trying again
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# returns the correct subdomain page. So, we will try twice to
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# load the page and obtain our domain ID
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attempts=2
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while [ "$attempts" -gt "0" ]; do
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attempts="$(_math "$attempts" - 1)"
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htmlpage="$(_freedns_retrieve_subdomain_page "$FREEDNS_COOKIE")"
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found_domainid="$(_freedns_find_domain "$FREEDNS_COOKIE" "$top_domain")"
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if [ "$?" != "0" ]; then
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if [ "$using_cached_cookies" = "true" ]; then
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_err "Has your FreeDNS username and password changed? If so..."
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_err "Please export as FREEDNS_User / FREEDNS_Password and try again."
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fi
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# Check if there is a dot in the top_domain
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# If not, we can't split any more and should assume the domain doesn't exist
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if ! echo "$top_domain" | grep -qF '.'; then
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_info "Domain $top_domain not found at FreeDNS. All domain parts exhausted"
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_err "Domain $fulldomain not found at FreeDNS"
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return 1
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fi
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subdomain_csv="$(echo "$htmlpage" | tr -d "\n\r" | _egrep_o '<form .*</form>' | sed 's/<tr>/@<tr>/g' | tr '@' '\n' | grep edit.php | grep "$top_domain")"
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_debug3 "subdomain_csv: $subdomain_csv"
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# Move the subdomain part from top_domain to the bottom of top_domain
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# e.g a | b.c.d becomes a.b | c.d where the pipe represents the split
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_info "Domain $top_domain not found at FreeDNS. Splitting again"
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sub_domain="$sub_domain.$(echo "$top_domain" | cut -d. -f 1)"
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top_domain="$(echo "$top_domain" | cut -d. -f 2-)"
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# The above beauty ends with striping out rows that do not have an
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# href to edit.php and do not have the top domain we are looking for.
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# So all we should be left with is CSV of table of subdomains we are
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# interested in.
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# Try again with the newly split domain
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continue
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# Now we have to read through this table and extract the data we need
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lines="$(echo "$subdomain_csv" | wc -l)"
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i=0
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found=0
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DNSdomainid=""
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while [ "$i" -lt "$lines" ]; do
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i="$(_math "$i" + 1)"
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line="$(echo "$subdomain_csv" | sed -n "${i}p")"
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_debug2 "line: $line"
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if [ $found = 0 ] && _contains "$line" "<td>$top_domain</td>"; then
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# this line will contain DNSdomainid for the top_domain
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DNSdomainid="$(echo "$line" | _egrep_o "edit_domain_id *= *.*>" | cut -d = -f 2 | cut -d '>' -f 1)"
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_debug2 "DNSdomainid: $DNSdomainid"
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found=1
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break
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fi
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done
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if [ -z "$DNSdomainid" ]; then
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# If domain ID is empty then something went wrong (top level
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# domain not found at FreeDNS).
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if [ "$attempts" = "0" ]; then
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# exhausted maximum retry attempts
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_err "Domain $top_domain not found at FreeDNS"
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return 1
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fi
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else
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# break out of the 'retry' loop... we have found our domain ID
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# Domain found, carry on!
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DNSdomainid="$found_domainid"
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_info "Domain $top_domain found at FreeDNS!"
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_debug2 "DNSdomainid for $top_domain: $DNSdomainid"
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break
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fi
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_info "Domain $top_domain not found at FreeDNS"
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_info "Retry loading subdomain page ($attempts attempts remaining)"
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done
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# Add in new TXT record with the value provided
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@ -244,6 +214,73 @@ _freedns_login() {
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return 0
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}
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# usage: _freedns_find_domain "<FREEDNS_COOKIE>" "www.domain.com"
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# print DNSdomainid on success
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# returns 0 on success
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_freedns_find_domain() {
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FREEDNS_COOKIE="$1"
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top_domain="$2"
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# Sometimes FreeDNS does not return the subdomain page but rather
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# returns a page regarding becoming a premium member. This usually
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# happens after a period of inactivity. Immediately trying again
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# returns the correct subdomain page. So, we will try twice to
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# load the page and obtain our domain ID
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attempts=2
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while [ "$attempts" -gt "0" ]; do
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attempts="$(_math "$attempts" - 1)"
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htmlpage="$(_freedns_retrieve_subdomain_page "$FREEDNS_COOKIE")"
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if [ "$?" != "0" ]; then
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if [ "$using_cached_cookies" = "true" ]; then
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_err "Has your FreeDNS username and password changed? If so..."
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_err "Please export as FREEDNS_User / FREEDNS_Password and try again."
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fi
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return 1
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fi
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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")"
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_debug3 "subdomain_csv: $subdomain_csv"
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# The above beauty ends with striping out rows that do not have an
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# href to edit.php and do not have the top domain we are looking for.
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# So all we should be left with is CSV of table of subdomains we are
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# interested in.
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# Now we have to read through this table and extract the data we need
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lines="$(echo "$subdomain_csv" | wc -l)"
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i=0
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found=0
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DNSdomainid=""
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while [ "$i" -lt "$lines" ]; do
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i="$(_math "$i" + 1)"
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line="$(echo "$subdomain_csv" | sed -n "${i}p")"
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_debug2 "line: $line"
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if [ $found = 0 ] && _contains "$line" "<td>$top_domain</td>"; then
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# this line will contain DNSdomainid for the top_domain
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DNSdomainid="$(echo "$line" | _egrep_o "edit_domain_id *= *.*>" | cut -d = -f 2 | cut -d '>' -f 1)"
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_debug2 "DNSdomainid: $DNSdomainid"
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found=1
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break
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fi
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done
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if [ -z "$DNSdomainid" ]; then
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# If domain ID is empty then something went wrong (top level
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# domain not found at FreeDNS).
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if [ "$attempts" = "0" ]; then
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# exhausted maximum retry attempts
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return 1
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fi
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else
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# break out of the 'retry' loop... we have found our domain ID
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printf "%s" "$DNSdomainid"
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return 0
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fi
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_debug "Retry loading subdomain page ($attempts attempts remaining)"
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done
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}
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# usage _freedns_retrieve_subdomain_page login_cookies
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# echo page retrieved (html)
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# returns 0 success
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