Set up Python module interception, to inject cert into Stripe

Author: pimterry

.gitignore

@@ -51,3 +51,6 @@ pids
 typings/
 yarn-debug.log*
 yarn-error.log*
+
+__pycache__
+*.pyc

overrides/pythonpath/stripe.py

@@ -0,0 +1,30 @@
+import sys, os
+
+try:
+    import importlib
+    if not hasattr(importlib, 'reload'):
+        raise Exception('wrong importlib')
+except:
+    import imp
+    importlib = imp
+
+def _load_real_stripe():
+    override_path = os.path.dirname(os.path.abspath(__file__))
+
+    original_sys_path = list(sys.path)
+    sys.path = [p for p in sys.path if p != override_path]
+    del sys.modules['stripe']
+    import stripe
+    sys.path = original_sys_path
+
+def _inject_http_toolkit_certificate():
+    import stripe
+    stripe.ca_bundle_path = os.environ['SSL_CERT_FILE']
+
+_load_real_stripe()
+_inject_http_toolkit_certificate()
+
+# Re-export all public fields from Stripe
+from stripe import *
+# Load a few extra notable private fields, for max compatibility
+from stripe import __path__, __file__, __doc__

src/interceptors/terminal/terminal-env-overrides.ts

@@ -6,6 +6,7 @@ const PATH_VAR_SEPARATOR = process.platform === 'win32' ? ';' : ':';
 
 const OVERRIDES_DIR = path.join(__dirname, '..', '..', '..', 'overrides');
 const OVERRIDE_RUBYGEMS_PATH = path.join(OVERRIDES_DIR, 'gems');
+const OVERRIDE_PYTHONPATH = path.join(OVERRIDES_DIR, 'pythonpath');
 
 export const OVERRIDE_BIN_PATH = path.join(OVERRIDES_DIR, 'path');
 
@@ -44,9 +45,15 @@ export function getTerminalEnvVars(
 
         // Prepend our bin overrides into $PATH
         'PATH': `${OVERRIDE_BIN_PATH}${PATH_VAR_SEPARATOR}${process.env.PATH}`,
+
         // Prepend our Ruby gem overrides into $LOAD_PATH
         'RUBYLIB': process.env.RUBYLIB
             ? `${OVERRIDE_RUBYGEMS_PATH}:${process.env.RUBYLIB}`
-            : OVERRIDE_RUBYGEMS_PATH
+            : OVERRIDE_RUBYGEMS_PATH,
+
+        // Prepend our Python package overrides into $PYTHONPATH
+        'PYTHONPATH': process.env.PYTHONPATH
+            ? `${OVERRIDE_PYTHONPATH}:${process.env.PYTHONPATH}`
+            : OVERRIDE_PYTHONPATH
     };
 }