added new http methods and blogposting app

deck/http.py

@@ -36,6 +36,17 @@ def auth_header(auth_username=None, auth_password=None):
   auth_b64 = binascii.b2a_base64(auth_str.encode("utf-8")).decode("utf-8").strip()
   return {"Authorization": f"Basic {auth_b64}"} 
 
+def url_escape(s):
+  """Prepare parameter value data for x-www-form-urlencoded format"""
+  return ''.join(c if c.isalpha() or c.isdigit() else '%%%02x' % ord(c) for c in s)
+
+def form_encode(params):
+  """Prepare parameter object for x-www-form-urlencoded format"""
+  out = []
+  for param, val in params.items():
+    out.append(url_escape(param) + '=' + url_escape(val))
+  return '&'.join(out)
+
 def wget(url, filename='', useragent=None, hdrs={}):
   """Download a file"""
   if filename == '':