Add module to download photos

server/download.py

@@ -0,0 +1,42 @@
+import os
+import settings
+import threading
+import paramiko
+import time
+paramiko.util.log_to_file('paramiko.log')
+
+def download(ip, dest):
+    print('Downloading from', ip)
+
+    port = 22
+    transport = paramiko.Transport((ip, port))
+    transport.connect(None, settings.RASPBERRY_USER, settings.RASPBERRY_PASS)
+
+    sftp = paramiko.SFTPClient.from_transport(transport)
+
+    files = sftp.listdir('/3dscan/')
+
+    for f in files:
+        source_file = '/3dscan/' + f
+        dest_file = dest + f
+        print('Grabbing file', source_file)
+        sftp.get(source_file, dest_file)
+        sftp.remove(source_file)
+
+    if sftp: sftp.close()
+    if transport: transport.close()
+
+    print('Finished downloading from', ip)
+
+def download_all_photos(dest):
+    if not dest.endswith('/'):
+        raise Exception('Destination must end with /')
+
+    if not os.path.exists(dest):
+        raise Exception('Destination does not exist')
+
+    print('Downloading all photos to', dest)
+
+    for ip in settings.RASPBERRY_IPS:
+        t = threading.Thread(target=download, args=(ip, dest))
+        t.start()