add dummy server script

1 files changed, 48 insertions, 0 deletions

diff --git a/scripts/dummy-server.py b/scripts/dummy-server.py
new file mode 100755
index 0000000..9350cab
--- /dev/null
+++ b/scripts/dummy-server.py
@@ -0,0 +1,48 @@
+#!/bin/python3
+
+"""
+this is a garbage python script that opens a tcp socket on localhost:33 for
+connecting with the qt client
+"""
+
+import socketserver
+from random import randint
+
+def hexpad(n, pad):
+  return hex(n)[2:].zfill(pad)
+
+def bs(str):
+  return bytes(str, 'utf-8')
+
+def r(max):
+  return randint(0, max)
+
+class DummyServer(socketserver.BaseRequestHandler):
+  def error(self):
+    self.request.sendall(bs("error\n"))
+
+  def ok(self, rows):
+    response = "id,temperature,humidity,atmospheric_pressure\n"
+    line_len = len("xxxx,xx,xx,xx\n")
+    retstr = f"ok,{hex(len(response) + rows * line_len)[2:]}\n"
+    retstr += response
+    for row in range(rows):
+      retstr += f"{hexpad(row, 4)},{hexpad(r(0xff), 2)},{hexpad(r(0xff), 2)},{hexpad(r(0xff), 2)}\n"
+    self.request.sendall(bs(retstr))
+
+  def handle(self):
+    self.data = self.request.recv(1024).strip()
+    if len(self.data) > 40: return self.error()
+    if not self.data.startswith(bs('last-records')): return self.error()
+    self.data = self.data.replace(bs('last-records'), bs(''))
+    try:
+      self.ok(int(self.data))
+    except ValueError:
+      self.error()
+
+if __name__ == "__main__":
+  socketserver.TCPServer.allow_reuse_address = True
+  with socketserver.TCPServer(("localhost", 33), DummyServer) as server:
+    server.serve_forever()
+
+