chunked posts

Author: pschatzmann

examples/examples-communication/http-client/streams-http_post/streams-http_post.ino

@@ -11,7 +11,7 @@
 
 const char *ssid = "your SSID";
 const char *password = "your PASSWORD";
-const char *url_str = "http://192.168.1.44:9999";
+const char *url_str = "http://192.168.1.44:9988";
 AudioInfo info(44100, 2, 16);
 SineWaveGenerator<int16_t> sineWave(32000);
 GeneratedSoundStream<int16_t> sound(sineWave);

examples/examples-communication/http-server/python-post-server/README.md

@@ -0,0 +1,5 @@
+
+This directory contains a server in Python that was used to test the [Arduino
+post sketch](https://github.com/pschatzmann/arduino-audio-tools/blob/main/examples/examples-communication/http-client/streams-http_post/streams-http_post.ino) using chunged writes.
+
+The server logs each written line and writes the data to a file.

examples/examples-communication/http-server/python-post-server/server.py

@@ -0,0 +1,48 @@
+
+#!/usr/bin/env python3
+  
+from http.server import HTTPServer, SimpleHTTPRequestHandler
+
+HOST = ""
+PORT = 9988
+path = "./audio.pcm"
+
+class TestHTTPRequestHandler(SimpleHTTPRequestHandler):
+    def do_POST(self):
+        self.send_response(200)
+        self.end_headers()
+
+        if "Content-Length" in self.headers:
+            content_length = int(self.headers["Content-Length"])
+            body = self.rfile.read(content_length)
+            with open(path, "wb") as out_file:
+                print("writing:", content_length)
+                out_file.write(body)
+        elif "chunked" in self.headers.get("Transfer-Encoding", ""):
+            with open(path, "wb") as out_file:
+                while True:
+                    line = self.rfile.readline().strip()
+                    print(line)
+                    chunk_length = int(line, 16)
+
+                    if chunk_length != 0:
+                        print("writing chunk:", chunk_length)
+                        chunk = self.rfile.read(chunk_length)
+                        out_file.write(chunk)
+
+                    # Each chunk is followed by an additional empty newline
+                    # that we have to consume.
+                    self.rfile.readline()
+
+                    # Finally, a chunk size of 0 is an end indication
+                    if chunk_length == 0:
+                        break
+
+def main():
+  httpd = HTTPServer((HOST, PORT), TestHTTPRequestHandler)
+  print("Serving at port:", httpd.server_port)
+  httpd.serve_forever()
+
+
+if __name__ == "__main__":
+    main()