file loading done

main.html

@@ -12,6 +12,13 @@
     <input type="text" name="name" style="width: 100%" placeholder="Name" /> <br>
     <textarea name="message" rows="10" style="width: 100%" placeholder="Message"></textarea> <br>
     <input type="submit"/>
+
+
 </form>
+    <form enctype="multipart/form-data" action="/upload" method="POST">
+    <input type="hidden" name="MAX_FILE_SIZE" value="100000" />
+    Choose a file to upload: <input name="file" type="file" /><br />
+    <input type="submit" value="Upload File" />
+    </form>
 </body>
 </html>

wsgi.py

@@ -1,4 +1,7 @@
 import wsgiref.validate
+from tempfile import TemporaryFile
+import cgi
+import os
 
 from utils import parse_http_x_www_form_urlencoded_post_data, \
     get_first_element, parse_http_get_data, parse_http_headers, \
@@ -12,7 +15,21 @@
     b'Name: user<br>Message: hi!',
     b'Name: user<br>Message: hi!',
 ]
+#import wsgiref.util
+#wsgiref.util.FileWrapper().filelike()
 
+def read(environ):
+    length = int(environ.get('CONTENT_LENGTH', 0))
+    stream = environ['wsgi.input']
+    body = TemporaryFile(mode='w+b')
+    while length > 0:
+        part = stream.read(min(length, 1024*200)) # 200KB buffer size
+        if not part: break
+        body.write(part)
+        length -= len(part)
+    body.seek(0)
+    environ['wsgi.input'] = body
+    return body
 
 @wsgiref.validate.validator
 def application(environ, start_response):
@@ -34,10 +51,7 @@ def application(environ, start_response):
         status = '404 Not Found'
         start_response(status, headers)
         return [b'']
-
-    if URI_PATH.startswith(STATIC_URL):
-        print('STATIC FILE DETECTED!')
-
+    print(environ)
     if DEBUG:
         print("{REQUEST_METHOD} {URI_PATH}?{URI_QUERY} {SERVER_PROTOCOL}\n"
               "CONTENT_TYPE: {CONTENT_TYPE}; {CONTENT_TYPE_KWARGS}\n"
@@ -46,6 +60,39 @@ def application(environ, start_response):
               ":HEADERS:\n{HEADERS}\n"
               .format(**locals()))
 
+    if URI_PATH == "/upload":
+        status = '303 See Other'
+        headers.append(('Location', '/'))
+        body = read(environ)
+        form = cgi.FieldStorage(fp=body, environ=environ, keep_blank_values=True)
+        try:
+            fileitem = form['file']
+        except KeyError:
+            fileitem = None
+        if fileitem is not None and fileitem.file is not None:
+            fn = os.path.basename(fileitem.filename)
+            with open("data/" + fn, 'wb') as f:
+                data = fileitem.file.read(1024)
+                while data:
+                    f.write(data)
+                    data = fileitem.file.read(1024)
+
+        start_response(status, headers)
+        return [b'']
+
+    if URI_PATH.startswith(STATIC_URL):
+        path = URI_PATH.split(STATIC_URL)[-1]
+        if "../" in path:
+            status = '404 Not Found'
+            start_response(status, headers)
+            return [b'']
+
+        with open(STATIC_ROOT + "/" + path, 'rb') as f:
+            start_response(status, [('Content-type', 'application/octet-stream; charset=utf-8')])
+            return [f.read()]
+
+
+
     with open('main.html', 'rb') as f:
         template_bytes = f.read()