[elbe-devel] [PATCH 2/2] elbepack: egpg: properly read returned plaintext data

[Thomas Weißschuh]

The gpg.core.Data() object does not automatically create nonexistent
files (anymore?).

Explicitly read the output data.

Closes: https://github.com/Linutronix/elbe/issues/383
Signed-off-by: Thomas Weißschuh <thomas.weissschuh at linutronix.de>
---
 elbepack/egpg.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/elbepack/egpg.py b/elbepack/egpg.py
index f7af65bf9d1d..0cedf8b5465a 100644
--- a/elbepack/egpg.py
+++ b/elbepack/egpg.py
@@ -4,6 +4,7 @@
 
 import logging
 import os
+import shutil
 import subprocess
 
 from gpg import core
@@ -159,10 +160,10 @@ def unsign_file(fname):
 
     try:
         infile = core.Data(file=fname)
-        outfile = core.Data(file=outfilename)
     except (GPGMEError, ValueError) as E:
         print(f'Error: Opening file {fname} or {outfilename} - {E}')
     else:
+        outfile = core.Data()
         # obtain signature and write unsigned file
         ctx.op_verify(infile, None, outfile)
         vres = ctx.op_verify_result()
@@ -174,6 +175,10 @@ def unsign_file(fname):
         if overall_status.to_exitcode():
             return None
 
+        with open(outfilename, 'wb') as f:
+            outfile.seek(0, os.SEEK_SET)
+            shutil.copyfileobj(outfile, f)
+
         return outfilename
 
     return None

-- 
2.44.0