This package aims to make it possible to create simple proxy scripts declaratively. It will never cover all the subtleties. If you have unusual requirements, it is better to write the proxy script directly in JavaScript
You can install the package with pip.
pip install paccreator
You can also load the script directly from github with pip.
pip install git+https://github.com/73h/paccreator.git@main#egg=paccreator
Create a file called myproxy.yaml and define your proxy rules in it like this.
description: A description of proxy script # (optional, default=pac file for my company)
version: The version of proxy script # (optional, default=0.1)
proxies:
- route: DIRECT
description: A description of proxy # (optional, default=use this proxy)
tags: # (optional) Here you can add any comments you like, which you can use to filter later. However, there are also standard annotations.
- default # (optional) This marks the proxy as default if no other condition applies. if no default proxy is available, the first one is used.
- catch-plain-hostnames # (optional) This proxy applies if there is no domain name in the hostname (no dots). You should not annotate this on several proxies.
targets:
- example.com
- foo.example.com
- .example.net
# You can also use a network mask, ip-addresses, hosts or strings
- route: PROXY proxy1.example.com:80; DIRECT
targets:
- 10.0.0.0/8Run this in python.
import os
from paccreator import PacCreator
p = PacCreator()
with open(os.path.join("myproxy.yaml"), "r") as f:
p.load_from_yaml(f.read())
print(p.output())You can also use with contextmanager.
import os
from paccreator import load_from_yaml
with open(os.path.join("myproxy.yaml"), "r") as f:
with load_from_yaml(f.read()) as p:
print(p.output())yaml file
description: Simple proxy
proxies:
- description: use direct connection
route: DIRECT
targets:
- 10.0.0.0/8
- .my-company.com
- description: use my proxy
route: PROXY proxy.my-company.com:80
tags:
- default
targets:
- www.my-company.com
- contact.my-company.com
- description: use the special proxy
route: PROXY proxy.my-company.com:8080
targets:
- datacenter.my-company.comAs a result, you can see that it has resolved the overlap between .my-company.com and,
for example, contact.my-company.com by first evaluating the exact subdomains.
The network mask 10.0.0.0/8 was placed at the end to avoid DNS queries when they are not necessary.
function FindProxyForURL(url, host) {
/*
Description: Simple proxy
Version: 0.1
*/
host = host.toLowerCase();
if (
localHostOrDomainIs(host, "www.my-company.com")
|| localHostOrDomainIs(host, "contact.my-company.com")
) {
/* use my proxy */
return "PROXY proxy.my-company.com:80";
}
if (
localHostOrDomainIs(host, "datacenter.my-company.com")
) {
/* use the special proxy */
return "PROXY proxy.my-company.com:8080";
}
if (
dnsDomainIs(host, ".my-company.com")
) {
/* use direct connection */
return "DIRECT";
}
if (
isInNet(host, "10.0.0.0", "255.0.0.0")
) {
/* use direct connection */
return "DIRECT";
}
/* Default: use my proxy */
return "PROXY proxy.my-company.com:80";
}You can see all the options supported so far in the test examples.
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