Update dynamic ip address to point to your domains.

dnspod.py

#!/usr/bin/python
# coding: utf8
# vim: ts=4 sts=4 fdm=marker

'''
%s <action> [option]
where action is:
    update [force]: update dns.
    generate [filter]: generate (filtered) dns record list for update.
'''

import httplib, urllib
import urllib2
from cookielib import CookieJar
import socket
import time
import sys
import json
import re

# data {{{
data = {
}
# data }}}

params = dict(
    login_email = 'YOUR USERNAME',
    login_password = 'YOUR PASSWORD',
    format = 'json',
)
BASE = 'https://dnsapi.cn'
conn = httplib.HTTPSConnection('dnsapi.cn')
#conn = httplib.HTTPConnection('proxyHost', 'proxyPort')

headers = { # {{{
    'Content-type': 'application/x-www-form-urlencoded',
    'Accept': 'text/json',
    'UserAgent': 'PythonHttp/1.0 (jerry@geofuture.net)',
} # }}}

def generate(filter=None): # {{{
    if filter != 'generate': filter = filter.split(',')
    else: filter = []
    rec = {}
    conn.request('POST', BASE + '/Domain.List', urllib.urlencode(params), headers)
    response = conn.getresponse()
    for domain in json.loads(response.read())['domains']:
        domain_id = domain['id']
        rec[domain_id] = []
        params['domain_id'] = domain_id
        conn.request('POST', BASE + '/Record.List', urllib.urlencode(params), headers)
        response = conn.getresponse()
        for record in json.loads(response.read())['records']:
            o = {'record_id': record['id'], 'sub_domain': record['name'], 'value': record['value']}
            if filter and record['type'] not in filter: continue
            rec[domain_id].append(o)
    conn.close()
    rec = json.dumps(rec, indent=4)
    print rec
    f = open(sys.argv[0], 'r')
    s = f.read()
    s = re.sub('(\n# data {{{\n)(.*)(\n# data }}}\n)', '\g<1>data = '+rec+'\g<3>', s, flags=re.DOTALL)
    f.close()
    f = open(sys.argv[0], 'w')
    f.write(s)
    f.close()
# }}}

def ddns(ip): # {{{
    params['record_line'] = '默认'
    params['value'] = ip
    for k, v in data.iteritems():
        params['domain_id'] = k
        for record in v:
            params.update(record)
            conn.request('POST', BASE + '/Record.Ddns', urllib.urlencode(params), headers)
            response = conn.getresponse()
            print response.read()
    conn.close()
# }}}

def getip(): # {{{
    sock = socket.create_connection(('ns1.dnspod.net', 6666), 30)
    ip = sock.recv(16)
    sock.close()
    return ip
# }}}

def getrouter(): # {{{
    cj = CookieJar()
    opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
    urllib2.install_opener(opener)
    base = 'http://192.168.1.1/'
    data = {
        'username': 'useradmin',
        'password': 'cjmc5',
    }
    resp = opener.open(base + 'ctlogin.cmd', urllib.urlencode(data).encode())
    resp = opener.open(base + 'ctwaninfoall.html')
    lines = resp.readlines()
    resp = opener.open(base + 'ctlogout.cmd')
    cj.clear()
    ip = lines[45].split('/')[26]
    return ip
# }}}

def update(force=False): # {{{
    f = open(sys.argv[0], 'a+')
    now = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime())
    current_ip = ''
    end = -1
    lines = f.readlines()
    while True:
        try:
            line = lines[end]
        except IndexError as e:
            current_ip = ''
        if line.startswith('##'):
            current_ip = ''
        else: current_ip = line.strip().split(' ')[-1]
        if current_ip and not re.match('(\d+\.){3}(\d+)', current_ip):
            end -= 1
        else: break
    try:
        ip = getip()
        #ip = getrouter()
        if current_ip != ip:
            ddns(ip)
            f.write('# %s %s\n' % (now, ip))
        elif force:
            ddns(ip)
            print 'IP is updated to %s.' % ip
        else:
            print 'IP is already %s.' % ip
    except Exception as e:
        f.write('# %s %s\n' % (now, e))
    f.close()
# }}}

if __name__ == '__main__':
    if len(sys.argv) == 1: print __doc__.strip() % sys.argv[0]
    elif sys.argv[1] == 'update': update(len(sys.argv)==3)
    elif sys.argv[1] == 'generate': generate(sys.argv[-1])

##################### IPs #################################### {{{