first commit

app/util/shell_execute.py

@@ -0,0 +1,34 @@
+import base64
+import json
+import os
+import sys
+import time
+import traceback
+from io import StringIO
+from subprocess import PIPE, Popen, TimeoutExpired
+
+def popen(cmd, sys_env=True, **kwargs):
+    if sys_env and kwargs.get('env') is not None:
+        kwargs['env'] = os.environ.copy().update(kwargs['env'])
+    return Popen(cmd, stdin=PIPE, stdout=PIPE, stderr=PIPE, encoding='utf-8', **kwargs)
+
+
+def execute(cmd, input_str=None, timeout=None, **kwargs):
+    p = popen(cmd, **kwargs)
+    try:
+        out, err = p.communicate(input_str, timeout=timeout)
+    except TimeoutExpired:
+        out = ''
+        err = get_exception()
+        p.kill()
+    stat = p.returncode
+    return stat, out, err
+
+
+def get_exception():
+    with StringIO() as io:
+        traceback.print_exc(file=io)
+        io.seek(0)
+        content = io.read()
+
+    return content