Support of HTTPS keyword in PAC file

Question

Created Jul ’20

Replies 4

Boosts 1

Views 1.2k

Participants 4

I've tried several functions for executing a proxy autoconfiguration script to determine the best proxy to use to retrieve a specified URL

Code Block CFNetworkCopyProxiesForAutoConfigurationScript
CFNetworkExecuteProxyAutoConfigurationURL
CFNetworkExecuteProxyAutoConfigurationScript

And they all seems to ignore HTTPS keyword in PAC file

Code Block function FindProxyForURL(url, host) {
		return "HTTPS ...";		 
}

That seems to be only way to use HTTPS proxy.

Can someone please confirm this?

Boost

Answer 1

Systems Engineer OP

Apple

Jul ’20

Not sure what is happening here, but if you use SCDynamicStoreCopyProxies to take a look at what the system currently has set for your proxy settings, would this give you any clues?

Code Block swiftguard let systemProxyConfig = SCDynamicStoreCopyProxies(nil) as? [CFString: AnyObject] else {
		return nil
}
/* Then look at the following for more clues: */
let httpEnabled = systemProxyConfig[kSCPropNetProxiesHTTPEnable] as? Bool
let httpsEnabled = systemProxyConfig[kSCPropNetProxiesHTTPSEnable] as? Bool
let javascriptPAC = systemProxyConfig[kSCPropNetProxiesProxyAutoConfigJavaScript] as? String

Matt Eaton
DTS Engineering, CoreOS
meaton3@apple.com

0

Answer 2

AleksandrMelnikov OP

Jul ’20

Thank you for reply, but I'm not dealing with systems proxy settings.
I just want to evaluate some existing PAC file. I think CFNetworkCopyProxiesForAutoConfigurationScript should do the trick, but it ignores HTTP and HTTPS keywords in pac file (it uses only PROXY, DIRECT and SOCKS).

0

Answer 3

shmaya OP

Aug ’23

This is still true from what i could find - anyone has a solution to using proxy over TLS? (return HTTPS...; in pac file does not work)

0

Answer 4

ykaganovich OP

Feb ’25

I had previously submitted this under FB11699086. I got no response.

I would love for someone from Apple to at least acknowledge that they understand the limitation.

This is breaking a whole market segment of multi-tenant cloud proxies.

0