Intercept Ruby HTTP even when net/http isn't imported

In some cases, just net/https may be imported. This works
if net/http is imported too, but if not then interception
relies entirely on the SSL_CERT_FILE variable. Unfortunately,
in some environments (notably including Mac's default Ruby)
that variable is ignored. With this change, we ensure that
even if just net/https is required, our HTTP hook is always
enabled.

Author: pimterry

overrides/gems/net/https.rb

@@ -0,0 +1,25 @@
+# require 'net/https' is not necessary in modern ruby, as net/http
+# can handle HTTPS all by itself. That said, it's still used in
+# places, and its use of require_relative to load 'http' means that
+# it avoids our net/http hook.
+
+# When using standard OpenSSL that's not a big problem, because
+# we also set SSL_CERT_FILE, which ensures we trust the certificate.
+# In some environments though (default Mac Ruby installs) that
+# variable is ignored, and so the net/http hook is *necessary*.
+
+# All this file does is import our hooked HTTP version, before
+# running the real module as normal, to guarantee the hook is
+# always in place in every case.
+
+require_relative 'http'
+
+# Remove this module from LOAD_PATH, so we can load the real one
+gem_override_path = File.expand_path('..', __dir__) # parent dir, we're a subfolder
+$LOAD_PATH.reject! { |path| File.expand_path(path) == gem_override_path }
+
+# Load the real net/https module as normal
+require 'net/https'
+
+# Put this override directory back on LOAD_PATH again
+$LOAD_PATH.unshift(gem_override_path)