Add basic webserver example. Only works with for small files at this point. Still a WIP

ed5153df · Klint Youngmeyer · 83cc1980 · ed5153df
Commit ed5153df authored Nov 19, 2019 by Klint Youngmeyer
--- a/basic_webserver.py
+++ b/basic_webserver.py
+import pyb
+import network
+import socket
+
+# nic = network.RS911X(pyb.SPI(2), pyb.Pin("I0"), pyb.Pin("E3"), pyb.Pin("E4"))
+# nic.connect('ASUS_E8_2G', '3197597781')
+
+
+def webserver(nic):
+    allowed_errors = [105]
+    HOST, PORT = nic.ifconfig()[0], 8082
+    print("Simple Webserver Running at: {}:{}".format(HOST, PORT))
+
+    my_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    my_socket.bind((HOST, PORT))
+    my_socket.listen(1)
+
+    while True:
+        attempts = 0
+        connection = None
+        address = None
+        while attempts < 3:
+            try:
+                connection, address = my_socket.accept()
+                break
+            except OSError as e:
+                attempts += 1
+                if e.args[0] not in allowed_errors:
+                    print("OS Error: {}".format(e))
+                pyb.delay(10)
+        request = connection.recv(1024).decode('utf-8')
+        string_list = request.split(' ')
+
+        method = string_list[0]
+        requesting_file = string_list[1]
+        try:
+            myfile, data = requesting_file.split('?')
+        except ValueError:
+            myfile = requesting_file.split('?')[0]
+            data = None
+
+        myfile = myfile.lstrip('/')
+        if(myfile == '/'):
+            myfile = 'index.html'
+        try:
+            file = open(myfile, 'rb')
+            response = file.read()
+            file.close()
+
+            header = 'HTTP/1.1 200 OK\n'
+
+            if(myfile.endswith(".jpg")):
+                mimetype = 'image/jpg'
+            elif(myfile.endswith(".css")):
+                mimetype = 'text/css'
+            else:
+                mimetype = 'text/html'
+
+            header += 'Content-Type: '+str(mimetype)+'\n\n'
+
+        except Exception:
+            header = 'HTTP/1.1 404 Not Found\n\n'
+            response = '<html><body><center><h3>Error 404: File not found</h3><p>Python HTTP Server</p></center></body></html>'.encode('utf-8')
+        final_response = header.encode('utf-8')
+        final_response += response
+        connection.send(final_response)
+        #connection.close()