From: Hans-Christoph Steiner <hans@eds.org>
Date: Thu, 7 Dec 2017 14:04:39 +0000 (+0100)
Subject: nightly: replace / from fingerprint in SSH key filename, fixes #423
X-Git-Tag: 1.0.0~37^2
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=fdroidserver.git;a=commitdiff_plain;h=7b52722d12dce6a23002b1dbb3ee6ed74e766551

nightly: replace / from fingerprint in SSH key filename, fixes #423

The SSH key fingerprint is used in the filename.  The base64 used for SSH
key fingerprints includes /.  Not all keys will end up having a / in them.
For those that do, this will crash since the ssh key filename ends up being
non-existent dirs:

$ fdroid nightly
Importing keystore /home/mhoffmann/.android/debug.keystore to /tmp/.cqswaeo8/.keystore.p12...
MAC verified OK
writing RSA key
CRITICAL: Unknown exception found!
Traceback (most recent call last):
  File "/usr/lib/python3.6/shutil.py", line 544, in move
    os.rename(src, real_dst)
FileNotFoundError: [Errno 2] No such file or directory: '/tmp/.cqswaeo8/.privkey' -> '/tmp/.cqswaeo8/debug_keystore_PZtS/4Tzk4dpzKiX9AAf1GrhAVi9U7UE1aYEHr6evKo_id_rsa'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/mhoffmann/projects/oss/fdroidserver/fdroid", line 156, in <module>
    main()
  File "/home/mhoffmann/projects/oss/fdroidserver/fdroid", line 132, in main
    mod.main()
  File "/home/mhoffmann/projects/oss/fdroidserver/fdroidserver/nightly.py", line 284, in main
    privkey = _ssh_key_from_debug_keystore()
  File "/home/mhoffmann/projects/oss/fdroidserver/fdroidserver/nightly.py", line 73, in _ssh_key_from_debug_keystore
    shutil.move(privkey, ssh_private_key_file)
  File "/usr/lib/python3.6/shutil.py", line 558, in move
    copy_function(src, real_dst)
  File "/usr/lib/python3.6/shutil.py", line 257, in copy2
    copyfile(src, dst, follow_symlinks=follow_symlinks)
  File "/usr/lib/python3.6/shutil.py", line 121, in copyfile
    with open(dst, 'wb') as fdst:
FileNotFoundError: [Errno 2] No such file or directory: '/tmp/.cqswaeo8/debug_keystore_PZtS/4Tzk4dpzKiX9AAf1GrhAVi9U7UE1aYEHr6evKo_id_rsa'
---

diff --git a/fdroidserver/nightly.py b/fdroidserver/nightly.py
index d4e4a4e3..249cd2e4 100644
--- a/fdroidserver/nightly.py
+++ b/fdroidserver/nightly.py
@@ -70,7 +70,8 @@ def _ssh_key_from_debug_keystore():
 
     rsakey = paramiko.RSAKey.from_private_key_file(privkey)
     fingerprint = base64.b64encode(hashlib.sha256(rsakey.asbytes()).digest()).decode('ascii').rstrip('=')
-    ssh_private_key_file = os.path.join(tmp_dir, 'debug_keystore_' + fingerprint + '_id_rsa')
+    ssh_private_key_file = os.path.join(tmp_dir, 'debug_keystore_'
+                                        + fingerprint.replace('/', '_') + '_id_rsa')
     shutil.move(privkey, ssh_private_key_file)
 
     pub = rsakey.get_name() + ' ' + rsakey.get_base64() + ' ' + ssh_private_key_file