Add async socket example.

examples/python-async/README.md

@@ -7,7 +7,8 @@ Run:
 
 Test:
 ```
-	$ curl -k https://127.0.0.1:8888/queue
-	$ curl -k https://127.0.0.1:8888/lock
-	$ curl -k https://127.0.0.1:8888/proc
+	$ curl -k http://127.0.0.1:8888/queue
+	$ curl -k http://127.0.0.1:8888/lock
+	$ curl -k http://127.0.0.1:8888/proc
+	$ curl -k http://127.0.0.1:8888/socket
 ```

examples/python-async/conf/build.conf

@@ -6,7 +6,7 @@
 # set kore_source together with kore_flavor.
 single_binary=yes
 kore_source=../../
-kore_flavor=PYTHON=1
+kore_flavor=PYTHON=1 NOTLS=1
 
 # The flags below are shared between flavors
 cflags=-Wall -Wmissing-declarations -Wshadow

examples/python-async/conf/python-async.conf

@@ -2,20 +2,19 @@
 
 bind		127.0.0.1 8888
 
-tls_dhparam	dh2048.pem
-
 python_path	src
 
 python_import	./src/setup.py
 python_import	./src/async_lock.py
 python_import	./src/async_queue.py
 python_import	./src/async_process.py
+python_import	./src/async_socket.py
 
 domain * {
-	certfile	cert/server.pem
-	certkey		cert/key.pem
-
 	static	/queue	async_queue
 	static	/lock	async_lock
 	static	/proc	async_proc
+
+	static	/socket		async_socket
+	static	/socket-test	socket_test
 }

examples/python-async/src/async_socket.py

@@ -0,0 +1,58 @@
+#
+# Copyright (c) 2018 Joris Vink <joris@coders.se>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+#
+
+#
+# Simple socket example.
+#
+# The handler will asynchronously connect to the kore app itself and
+# send an GET request to /socket-test and read the response.
+
+import kore
+import socket
+
+async def async_socket(req):
+    # Create the socket using Pythons built-in socket class.
+    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+
+    # Set it to nonblocking.
+    sock.setblocking(False)
+
+    # Create a kore.socket with kore.socket_wrap().
+    conn = kore.socket_wrap(sock)
+
+    # Asynchronously connect to 127.0.0.1 port 8888
+    await conn.connect("127.0.0.1", 8888)
+    kore.log(kore.LOG_INFO, "connected!")
+
+    # Now send the GET request
+    msg = "GET /socket-test HTTP/1.1\r\nHost: 127.0.0.1\r\n\r\n"
+    await conn.send(msg.encode())
+    kore.log(kore.LOG_INFO, "request sent!")
+
+    # Read the response.
+    data = await conn.recv(8192)
+    kore.log(kore.LOG_INFO, "got response!")
+
+    # Respond with the response from /socket-test.
+    req.response(200, data)
+
+    # Close the underlying socket, no need to close the wrapped kore.socket
+    sock.close()
+
+async def socket_test(req):
+    # Delay response a bit, just cause we can.
+    await kore.suspend(5000)
+    req.response(200, b'response from /socket-test')