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authorBen McGinnes <[email protected]>2018-05-23 04:43:06 +0000
committerBen McGinnes <[email protected]>2018-05-23 04:43:06 +0000
commit3a9e6a8e088e233097866bb0560a36cfbbc4470e (patch)
tree720fc6352caf415c4ad6ad830a660cb75f6f33f3
parentcpp: Expose sessionKey and symkeyAlgo (diff)
downloadgpgme-3a9e6a8e088e233097866bb0560a36cfbbc4470e.tar.gz
gpgme-3a9e6a8e088e233097866bb0560a36cfbbc4470e.zip
docs and examples: python howto
* Updated the decryption example code in the HOWTO and the corresponding decrypt-file.py script to gracefully handle a decryption failure. This error will always be triggered when GPGME is used to try to decrypt an old, MDC-less encrypted message or file.
-rw-r--r--lang/python/docs/GPGMEpythonHOWTOen.org17
-rwxr-xr-xlang/python/examples/howto/decrypt-file.py13
2 files changed, 22 insertions, 8 deletions
diff --git a/lang/python/docs/GPGMEpythonHOWTOen.org b/lang/python/docs/GPGMEpythonHOWTOen.org
index cb85b61b..ef66effc 100644
--- a/lang/python/docs/GPGMEpythonHOWTOen.org
+++ b/lang/python/docs/GPGMEpythonHOWTOen.org
@@ -14,7 +14,7 @@
:CUSTOM_ID: intro
:END:
- | Version: | 0.1.0 |
+ | Version: | 0.1.1 |
| Author: | Ben McGinnes <[email protected]> |
| Author GPG Key: | DB4724E6FA4286C92B4E55C4321E4E2373590E5D |
| Language: | Australian English, British English |
@@ -673,10 +673,17 @@
newfile = input("Enter path and filename of file to save decrypted data to: ")
with open(ciphertext, "rb") as cfile:
- plaintext, result, verify_result = gpg.Context().decrypt(cfile)
-
- with open(newfile, "wb") as nfile:
- nfile.write(plaintext)
+ try:
+ plaintext, result, verify_result = gpg.Context().decrypt(cfile)
+ except gpg.errors.GPGMEError as e:
+ plaintext = None
+ print(e)
+
+ if plaintext is not None:
+ with open(newfile, "wb") as nfile:
+ nfile.write(plaintext)
+ else:
+ pass
#+end_src
The data available in =plaintext= in this example is the decrypted
diff --git a/lang/python/examples/howto/decrypt-file.py b/lang/python/examples/howto/decrypt-file.py
index 60a050bd..b38acc79 100755
--- a/lang/python/examples/howto/decrypt-file.py
+++ b/lang/python/examples/howto/decrypt-file.py
@@ -38,7 +38,14 @@ else:
newfile = input("Enter path and filename of file to save decrypted data to: ")
with open(ciphertext, "rb") as cfile:
- plaintext, result, verify_result = gpg.Context().decrypt(cfile)
+ try:
+ plaintext, result, verify_result = gpg.Context().decrypt(cfile)
+ except gpg.errors.GPGMEError as e:
+ plaintext = None
+ print(e)
-with open(newfile, "wb") as nfile:
- nfile.write(plaintext)
+if plaintext is not None:
+ with open(newfile, "wb") as nfile:
+ nfile.write(plaintext)
+else:
+ pass