jung-geun/DynamicDNS-SSL
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chore: Update cronjob schedule and default_env.json, Add CLOUDFLARE_CNAME configuration

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jung geun
2024-09-11 01:34:13 +09:00
parent df5fb4f8ed
commit e04206c180
2 changed files with 51 additions and 25 deletions
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2
README.md
View File

@@ -2,6 +2,8 @@
This project aims to implement a Dynamic DNS (DDNS) solution using Cloudflare's API.
[![Maintainability Rating](https://sonar.pieroot.xyz/api/project_badges/measure?project=pieroot_cloudflare-ddns_e6da100b-a671-4736-87ac-9a41acda99f6&metric=sqale_rating&token=sqb_f7f644f779ab4e442b5d5e431589f57bd3c64150)](https://sonar.pieroot.xyz/dashboard?id=pieroot_cloudflare-ddns_e6da100b-a671-4736-87ac-9a41acda99f6)
## Overview
Dynamic DNS allows you to associate a domain name with a changing IP address, making it easier to access your network resources remotely. Cloudflare's API provides the necessary tools to automate this process.

74
src/update_dns.py
View File

@@ -75,7 +75,6 @@ class DDNS:
return response.text
except Exception as e:
logger.error(f"Error: {e}")
# print(f"Error: {e}")
return None
def previous_ip(self):
@@ -87,7 +86,6 @@ class DDNS:
os.mknod("/tmp/external_ip.txt")
except Exception as e:
logger.error(f"Error: {e}")
# print(f"Error: {e}")
return None
def check_ip(self):
@@ -107,7 +105,6 @@ class DDNS:
file.write(ip)
except Exception as e:
logger.error(f"Error: {e}")
# print(f"Error: {e}")
return None
def read_record(self, type=Literal["A", "CNAME"], name=None, content=None):
@@ -118,8 +115,10 @@ class DDNS:
"name": name,
"content": content,
}
response = requests.get(url, headers=self.HEADERS, params=params)
records = response.json()["result"]
response = requests.get(url, headers=self.HEADERS, params=params).json()
records = response["result"]
if not response["success"]:
raise Exception(f"Failed to get DNS records")
return records if records else None
except Exception as e:
logger.error(f"Error: {e}")
@@ -137,8 +136,12 @@ class DDNS:
"ttl": 1,
"proxied": proxy,
}
response = requests.post(url, headers=self.HEADERS, data=json.dumps(data))
success = response.json()["success"]
response = requests.post(
url, headers=self.HEADERS, data=json.dumps(data)
).json()
success = response["success"]
if not success:
raise Exception(f"Failed to create {name}")
return success if success else None
except Exception as e:
logger.error(f"Error: {e}")
@@ -156,8 +159,12 @@ class DDNS:
"ttl": 1,
"proxied": proxy,
}
response = requests.put(url, headers=self.HEADERS, data=json.dumps(data))
success = response.json()["success"]
response = requests.put(
url, headers=self.HEADERS, data=json.dumps(data)
).json()
success = response["success"]
if not success:
raise Exception(f"Failed to update {name}")
return success if success else None
except Exception as e:
logger.error(f"Error: {e}")
@@ -166,9 +173,10 @@ class DDNS:
def delete_record(self, record_id):
try:
url = f"https://api.cloudflare.com/client/v4/zones/{self.config['CLOUDFLARE_ZONE_ID']}/dns_records/{record_id}"
response = requests.delete(url, headers=self.HEADERS)
success = response.json()["success"]
response = requests.delete(url, headers=self.HEADERS).json()
success = response["success"]
if not success:
raise Exception(f"Failed to delete {record_id}")
return success if success else None
except Exception as e:
logger.error(f"Error: {e}")
@@ -185,39 +193,49 @@ class DDNS:
result = self.create_record(
type="CNAME", name=cname, content=domain, proxy=proxy
)
logger.info(f"{cname} is created")
if not result:
logger.error(f"Failed to create {cname}")
else:
logger.info(f"{cname} is created")
else:
pre_list = {}
for r in records_list:
pre_list[r["name"].split(".")[0]] = [r["proxied"], r["id"]]
for cname, proxy in cname_list.items():
if cname in pre_list.keys():
if proxy != pre_list[cname][0]:
self.update_record(
record_id=r["id"],
result = self.update_record(
record_id=pre_list[cname][1],
type="CNAME",
name=cname,
content=domain,
proxy=proxy,
)
logger.info(f"{cname} is updated")
if result:
logger.info(f"{cname} is updated")
else:
logger.error(f"Failed to update {cname}")
pre_list.pop(cname)
else:
result = self.create_record(
type="CNAME", name=cname, content=domain, proxy=proxy
)
logger.info(f"{cname} is created")
if not result:
logger.error(f"Failed to create {cname}")
else:
logger.info(f"{cname} is created")
for p in pre_list:
records = self.read_record(type="CNAME", name=p + "." + domain)
record_id = records[0]["id"]
result = self.delete_record(record_id)
logger.info(f"{p} is deleted")
if not result:
logger.error(f"Failed to delete {p}")
else:
logger.info(f"{p} is deleted")
if not result:
logger.error("Failed to update DNS CNAME record")
return -1
except Exception as e:
logger.error(f"Error: {e}")
return -1
@@ -241,6 +259,9 @@ if __name__ == "__main__":
result = API.create_record(
type="A", name=config["CLOUDFLARE_DOMAIN"], content=API.current_ip
)
if not result:
logger.error("Failed to create DNS A record")
sys.exit(0)
API.update_ip(API.current_ip)
else:
ip_list = [API.get_ip(), API.previous_ip()]
@@ -264,13 +285,16 @@ if __name__ == "__main__":
if not result:
logger.error("Failed to update DNS A record")
# # print("Failed to update DNS record")
sys.exit(0)
else:
logger.info("IP has not changed")
# Update CNAME records
API.update_cname_list(config["CLOUDFLARE_CNAME"], config["CLOUDFLARE_DOMAIN"])
result = API.update_cname_list(
config["CLOUDFLARE_CNAME"], config["CLOUDFLARE_DOMAIN"]
)
if result == -1:
logger.error("Failed to update CNAME records")
sys.exit(0)