init: CasSsoService CAS 5.3 overlay (cas.war via LFS)

docker/raw_post.py

@@ -0,0 +1,25 @@
+import socket
+HOST="sso.yunhaixingtong.com"; PORT=80
+body="loginname=AAA&pwd=BBB&captcha="
+req=(
+    "POST /api/login HTTP/1.1\r\n"
+    f"Host: {HOST}\r\n"
+    "Content-Type: application/x-www-form-urlencoded\r\n"
+    f"Content-Length: {len(body)}\r\n"
+    "Connection: close\r\n"
+    "\r\n"
+    + body
+)
+s=socket.create_connection((HOST,PORT),timeout=20)
+s.sendall(req.encode())
+data=b""
+while True:
+    chunk=s.recv(4096)
+    if not chunk: break
+    data+=chunk
+s.close()
+text=data.decode('utf-8','ignore')
+# print status line + headers (up to first blank line)
+head=text.split("\r\n\r\n",1)[0]
+print("=== RAW RESPONSE HEAD (native form POST) ===")
+print(head[:1500])