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Modified script to work with recent API changes, and just use domain name as input #2

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Modified script to work with recent API changes, and just use domain name as input #2

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84 changes: 51 additions & 33 deletions LinodeDynDNS.py
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Original file line number Diff line number Diff line change
Expand Up @@ -19,25 +19,18 @@
#
# 2. Save it.
#
# 3. Go back and edit the A record you just created. Make a note of the
# ResourceID in the URI of the page while editing the record.
#
# 4. Edit the four configuration options below, following the directions for
# 3. Edit the three configuration options below, following the directions for
# each. As this is a quick hack, it assumes everything goes right.
#
# First, the resource ID that contains the 'home' record you created above. If
# the URI while editing that A record looks like this:
#
# linode.com/members/dns/resource_aud.cfm?DomainID=98765&ResourceID=123456
# ^
# You want 123456. The API key MUST have write access to this resource ID.
# Set the domain name below. The API key MUST have write access to this
# resource ID.
#
RESOURCE = "000000"
DOMAIN = "home.yourdomain.com"
#
# Your Linode API key. You can generate this by going to your profile in the
# Linode manager. It should be fairly long.
#
KEY = "abcdefghijklmnopqrstuvwxyz"
KEY = "yourapikey"
#
# The URI of a Web service that returns your IP address as plaintext. You are
# welcome to leave this at the default value and use mine. If you want to run
Expand Down Expand Up @@ -107,41 +100,66 @@ def execute(action, parameters):
err = json["ERRORARRAY"][0]
raise Exception("Error {0}: {1}".format(int(err["ERRORCODE"]),
err["ERRORMESSAGE"]))
return load(open(file), encoding="utf-8")
return json["DATA"]

def ip():
if DEBUG:
print("-->", GETIP)
file, headers = urlretrieve(GETIP)
result = open(file).read().strip()
if DEBUG:
print("<--", file)
print(headers, end="")
print(open(file).read())
print(result)
print()
return open(file).read().strip()
return result

def main():
try:
res = execute("domainResourceGet", {"ResourceID": RESOURCE})["DATA"]
if(len(res)) == 0:
raise Exception("No such resource?".format(RESOURCE))
public = ip()
if res["TARGET"] != public:
old = res["TARGET"]
request = {
"ResourceID": res["RESOURCEID"],
"DomainID": res["DOMAINID"],
"Name": res["NAME"],
"Type": res["TYPE"],
"Target": public,
"TTL_Sec": res["TTL_SEC"]
}
execute("domainResourceSave", request)
print("OK {0} -> {1}".format(old, public))
return 1
else:
# Determine DomainId
domains = execute("domain.list", {})
for domain in domains:
if DOMAIN.endswith(domain["DOMAIN"]):
matchedDomain = domain
break
if matchedDomain is None:
raise Exception("Domain not found")
domainId = matchedDomain["DOMAINID"]
domainName = matchedDomain["DOMAIN"]
if DEBUG:
print("Found matching domain:")
print(" DomainId = {0}".format(domainId))
print(" Name = {0}".format(domainName))

# Determine resource id (subdomain)
resources = execute("domain.resource.list",
{"DomainId": domainId})
for resource in resources:
if resource["NAME"] + "." + domainName == DOMAIN:
matchedResource = resource
break
if resource is None:
raise Exception("Resource not found")
resourceId = matchedResource["RESOURCEID"]
oldIp = matchedResource["TARGET"]
if DEBUG:
print("Found matching resource:")
print(" ResourceId = {0}".format(resourceId))
print(" Target = {0}".format(oldIp))

# Determine public ip
newIp = ip()
if oldIp == newIp:
print("OK")
return 0

# Update public ip
execute("domain.resource.update", {
"ResourceID": resourceId,
"DomainID": domainId,
"Target": newIp})
print("OK {0} -> {1}".format(oldIp, newIp))
return 1
except Exception as excp:
print("FAIL {0}: {1}".format(type(excp).__name__, excp))
return 2
Expand Down