fix filename when the filename have special characters

cgi.py

@@ -0,0 +1,29 @@
+def _parseparam(s):
+    while s[:1] == ';':
+        s = s[1:]
+        end = s.find(';')
+        while end > 0 and (s.count('"', 0, end) - s.count('\\"', 0, end)) % 2:
+            end = s.find(';', end + 1)
+        if end < 0:
+            end = len(s)
+        f = s[:end]
+        yield f.strip()
+        s = s[end:]
+
+def parse_header(line):
+    """Parse a Content-type like header.
+    Return the main content-type and a dictionary of options.
+    """
+    parts = _parseparam(';' + line)
+    key = parts.__next__()
+    pdict = {}
+    for p in parts:
+        i = p.find('=')
+        if i >= 0:
+            name = p[:i].strip().lower()
+            value = p[i+1:].strip()
+            if len(value) >= 2 and value[0] == value[-1] == '"':
+                value = value[1:-1]
+                value = value.replace('\\\\', '\\').replace('\\"', '"')
+            pdict[name] = value
+    return key, pdict

main.py

@@ -39,7 +39,6 @@ req_list = ("http://", "https://")
 
 html_files = ("text/html", "application/xhtml+xml")
 
-
 class Lifo(list):
     """Limited size LIFO array to store messages and urls."""
 
@@ -175,6 +174,9 @@ class AngelBot(ClientXMPP):
                 if content_disposition:
                     _, params = cgi.parse_header(content_disposition)
                     filename = params.get("filename")
+                    if params.get("filename*"):
+                        filename = params.get("filename*")
+                        filename = filename.split("''")[-1]
                 else:
                     filename = os.path.basename(uri.path)