gh-104180: Read SOCKS proxies from macOS System Configuration (#104181)

read SOCKS proxies from macOS System Configuration in ``urllib.request``.

---------

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Oleg Iarygin <[email protected]>

Author: 3 people

Misc/NEWS.d/next/macOS/2023-05-04-21-47-59.gh-issue-104180.lEJCwd.rst

@@ -0,0 +1,2 @@
+Support reading SOCKS proxy configuration from macOS System Configuration.
+Patch by Sam Schott.

Modules/_scproxy.c

@@ -206,6 +206,11 @@ get_proxies(PyObject* Py_UNUSED(mod), PyObject *Py_UNUSED(ignored))
         kSCPropNetProxiesGopherProxy,
         kSCPropNetProxiesGopherPort);
     if (r == -1) goto error;
+    r = set_proxy(result, "socks", proxyDict,
+        kSCPropNetProxiesSOCKSEnable,
+        kSCPropNetProxiesSOCKSProxy,
+        kSCPropNetProxiesSOCKSPort);
+    if (r == -1) goto error;
 
     CFRelease(proxyDict);
     return result;