Use sendall() instead of send()

Images weren't being served up properly because there was too much data
for send() to get through before the connection was closed out from
under it.

diff --git a/cbs-srv.py b/cbs-srv.py
index 4cf633d15323008d35fbc8535ae9739bdfb207a7..2a0fd2e9b3c41e968ddb8277b4ee0774a2745b25 100755 (executable)
--- a/cbs-srv.py
+++ b/cbs-srv.py
@@ -174,7 +174,7 @@ def serve_cgi(conn: SSL.Connection, addr, req_path, extra_path, url, conf: dict)
         raise CBSException(42, 'CGI script error', '{} -> {}'.format(req_path, x.returncode))
     except PermissionError:
         raise CBSException(42, 'CGI not executable', req_path)
-    conn.send(proc.stdout)
+    conn.sendall(proc.stdout)
 
 
 def serve_file(conn: SSL.Connection, filedir):
@@ -185,8 +185,8 @@ def serve_file(conn: SSL.Connection, filedir):
         f.close()
     except Exception as x:
         raise CBSException(40, 'Server error accessing content', x)
-    conn.send('20 {}\r\n'.format(mime_type or 'application/octet-stream').encode('utf-8'))
-    conn.send(content)
+    conn.sendall('20 {}\r\n'.format(mime_type or 'application/octet-stream').encode('utf-8'))
+    conn.sendall(content)
 
 
 # ------------------------------------------------------------------------------
@@ -225,10 +225,10 @@ def main():
                 serve_req(conn, addr, req, conf)
             except CBSException as x:
                 logging.error('{} {} {}'.format(x.code, x.meta, x.logdata))
-                conn.send('{} {}\r\n'.format(x.code, x.meta).encode('utf-8'))
+                conn.sendall('{} {}\r\n'.format(x.code, x.meta).encode('utf-8'))
             except Exception as x:
                 logging.error('Exception: {}'.format(x))
-                conn.send('40 Server error\r\n')
+                conn.sendall('40 Server error\r\n')
             conn.shutdown()
             conn.sock_shutdown(socket.SHUT_RDWR)