enhance: add functions for daemon tools to do mTLS (#67)

Signed-off-by: Grant Linville <[email protected]>

gptscript/daemon.py

@@ -0,0 +1,58 @@
+import base64
+import ssl
+import os
+import tempfile
+
+
+def start_uvicorn(app):
+    cert, key, client_cert = save_certificates_from_env()
+
+    @app.on_event("shutdown")
+    def cleanup():
+        os.remove(cert)
+        os.remove(key)
+        os.remove(client_cert)
+
+    import uvicorn
+    uvicorn.run(
+        app,
+        host="127.0.0.1",
+        port=int(os.getenv("PORT")),
+        ssl_certfile=cert,
+        ssl_keyfile=key,
+        ssl_ca_certs=client_cert,
+        ssl_cert_reqs=ssl.CERT_REQUIRED,
+    )
+
+def save_certificates_from_env():
+    cert = base64.b64decode(os.getenv("CERT", ""))
+    key = base64.b64decode(os.getenv("PRIVATE_KEY", ""))
+    client_cert = base64.b64decode(os.getenv("GPTSCRIPT_CERT", ""))
+
+    if cert == "":
+        print("error: CERT env var is empty")
+        exit(1)
+    elif key == "":
+        print("error: PRIVATE_KEY env var is empty")
+        exit(1)
+    elif client_cert == "":
+        print("error: GPTSCRIPT_CERT env var is empty")
+        exit(1)
+
+    cert_file = tempfile.NamedTemporaryFile(delete=False, suffix=".pem")
+    key_file = tempfile.NamedTemporaryFile(delete=False, suffix=".pem")
+    client_cert_file = tempfile.NamedTemporaryFile(delete=False, suffix=".pem")
+
+    os.chmod(cert_file.name, 0o600)
+    os.chmod(key_file.name, 0o600)
+    os.chmod(client_cert_file.name, 0o600)
+
+    cert_file.write(cert)
+    key_file.write(key)
+    client_cert_file.write(client_cert)
+
+    cert_file.close()
+    key_file.close()
+    client_cert_file.close()
+
+    return cert_file.name, key_file.name, client_cert_file.name

pyproject.toml

@@ -19,6 +19,7 @@ dependencies = [
     "urllib3==2.2.1",
     "pydantic==2.9.2",
     "pywin32==306 ; sys_platform == 'win32'",
+    "uvicorn==0.32.1",
 ]
 
 [project.urls]

requirements.txt

@@ -12,3 +12,4 @@ build==1.1.1
 httpx==0.27.0
 pydantic==2.9.2
 pywin32==306; sys_platform == 'win32'
+uvicorn==0.32.1