Commit Graph

2670 Commits

Author SHA1 Message Date
Ben McGinnes
b6d2a66b41 Link fixes
* lang/python/README: Fixed links in both versions of the README.
2018-08-10 03:42:15 +10:00
Andre Heinecke
4dd1d0abd3
json: Wipe memory in cJSON_Delete
* src/cJSON.c (cJSON_Delete): Wipe memory on deletion.
2018-08-08 14:27:24 +02:00
Andre Heinecke
fdc07b3ddc
json: Only use calloc instead of malloc
* src/cJSON.c, src/gpgme-json.c (CALLOC_ONLY): New define
to change xmalloc / xtrymalloc to use calloc.

--
Some people consider malloc dangerous as it might allow an
information leak.
2018-08-08 14:25:28 +02:00
Andre Heinecke
974a95db04
json: Add checks when skipping byte
* src/cJSON.c (parse_string, cJSON_Minify): Check for
terminating NULL byte when skipping the byte after a an escaped
quote.
2018-08-08 13:30:01 +02:00
Andre Heinecke
6e48bb0f1c
json: Don't error out if chunksize is omitted
* src/gpgme-json.c (encode_and_chunk): Don't error out
if no chunksize is provided.

--
This fixes 82e4b900a9 which
caused every call without chunksize to error out.
2018-08-08 09:49:51 +02:00
Andre Heinecke
3b78244360
cpp: Fix use after free in gencardkeyinteractor
* lang/cpp/src/gpggencardkeyinteractor.cpp
(GpgGenCardKeyInteractor::Private::keysize): Change to string.

--
The value is only required as string so we can save it this
way to avoid the need to convert it for the action command.

GnuPG-Bug-Id: T4094
2018-08-08 09:22:46 +02:00
Andre Heinecke
d09d19fa9f
Make GNUPGHOME for tests overridable
* lang/python/tests/Makefile.am,
lang/qt/tests/Makefile.am,
tests/Makefile.am,
tests/gpg/Makefile.am,
tests/gpgsm/Makefile.am,
tests/opassuan/Makefile.am (GNUPGHOME): Make variable explict.

--
If the build directory has too long path, gpgme could fail.
This is similar to

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=847206

In order to fix that, this patch extracts the GNUPGHOME variable
to be presented directly in the Makefile and thus overridable by
command line option.

A build system can then create a symlink to the GNUPGHOME directory
in /tmp and use that symlink as the GNUPGHOME directory
thus making the path very short.

GnuPG-Bug-Id: T4091

Patch provided by vlmarek
2018-08-06 09:30:47 +02:00
Andre Heinecke
a6e5c8bf18
cpp: Add safety checks for key update
* lang/cpp/src/key.cpp (Key::update): Check that the key is
not NULL.
* lang/cpp/src/verificationresult.cpp (GpgME::Signature::key):
Check for fingerprint.
2018-07-24 08:40:28 +02:00
Ben McGinnes
4d1642b11e docs: python bindings howto
* Fixed and tested the changes necessary for org-mode to correctly
  parse pythonic (Python 3) indentation.
* Updated the source blocks to recommended upper case for BEGIN_SRC
  and END_SRC.
* Tested and confirmed XHTML output matches correct examples.
* Tested against pseudo-control output via exporting from org-mode to
  org-mode and then exporting that to XHTML.  Remaining differences
  appear to be discarding the custom tags used to provide X[HT]ML id
  elements to each section which does not appear to offer any benefit.
* Exporting directly to XHTML or other HTML output should no longer
  cause problems, but if there are any then the first step should be
  exporting from org-to-org and then exporting that to XHTML.

Tested-by: Ben McGinnes <ben@adversary.org>
Signed-off-by: Ben McGinnes <ben@adversary.org>
2018-07-23 01:35:12 +10:00
Ben McGinnes
d7c5366d58 doc: python bindings howto
* Another retrofitting of the HOWTO Python example code, this time
  following adjustments to python-mode configuration and having
  trawled through the org-mode mailing lists for clues.
2018-07-23 01:35:12 +10:00
Ben McGinnes
b47e1bb98a doc: python bindings howto
* Added org-mode byline.
2018-07-23 01:35:12 +10:00
Werner Koch
5ef492c563
core: Clear all flags for a new data property.
* src/data.c (PROPERTY_TABLE_ALLOCATION_CHUNK): New.
(insert_into_property_table): Use it here.  Clear all flags.
--

Fixes-commit: 085cdeddef
Signed-off-by: Werner Koch <wk@gnupg.org>
2018-07-19 20:38:21 +02:00
Werner Koch
085cdeddef
core: Blank out the plaintext after decryption failure.
* src/data.h (data_prop_t): New enum.
(struct gpgme_data): Add field propidx.
* src/data.c (property_t): New.
(property_table, property_table_size, property_table_lock): New.
(insert_into_property_table): New.
(remove_from_property_table): New.
(_gpgme_data_get_dserial): New.
(_gpgme_data_set_prop): New.
(_gpgme_data_get_prop): New.
(_gpgme_data_new): Connect new object to property_table.
(_gpgme_data_release): Remove from property_table.
(gpgme_data_read): With DATA_PROP_BLANKOUT set don't fill the buffer.
* src/data-mem.c (gpgme_data_release_and_get_mem): Likewise.
* src/decrypt.c (struct op_data): Add field plaintext_dserial.
(_gpgme_op_decrypt_init_result): Add arg plaintext and init new field.
(_gpgme_decrypt_status_handler): Set DATA_PROP_BLANKOUT on decryption
failure.
(_gpgme_decrypt_start): Pass PLAIN to the init function.
* src/decrypt-verify.c (decrypt_verify_start): Ditto.
* configure.ac: Check for stdint.h and bail out if uint64_t is not
available.
--

This is a best effort feature to not output plaintext after a
decryption failure (e.g. due to no or broken authenticated
encryption).  It always work when using a memory object and reading it
after the decryption but it can't work reliable when the user is
reading from the data object while the decryption process is still
running.

This is quite a large change because the data objects and the context
objects are allowed to be owned by different threads.  Thus a
synchronization is needed and we do this with a global table of all
data objects to which the context objects can do soft-linking via a
unique data object serial number.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-07-19 17:39:09 +02:00
Andre Heinecke
8168dfbeb1
cpp: Print origin and last update for key/uid
* lang/cpp/src/key.cpp: Print origin and last update in
iostream operators.
2018-07-19 12:58:49 +02:00
Werner Koch
af2c74d6c0
json: Don't use strdup but the xtrystrdup wrapper.
* src/gpgme-json.c (create_keylist_patterns): Use CNT as first arg for
xcalloc.
(process_request): s/strdup/xtrystrdup/.
--

calloc takes two arguments so to be able to detect integer overflow.
Thus if we switch from malloc to calloc we should utilize that.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-07-19 09:53:37 +02:00
Werner Koch
f42cd70f18
core: New interface gpgme_data_new_from_estream.
* src/gpgme.h.in (gpgme_data_new_from_estream): New.
* src/data-estream.c: New.
* src/data.h (gpgme_data): New union member e_stream.
--

The estream functions (gpgrt_fopen et al.) are any waypart of the
required libgpg-error library and thus it makes sense to provide this
convenience interface.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-07-19 09:51:45 +02:00
Andre Heinecke
98a75a16cc
json: Fix memleak in native msging repl
* src/gpgme-json.c (native_messaging_repl): Free request and
response after each loop.

--
If we only accept once request we should not loop. If we loop
we should do it properly.
2018-07-18 13:15:02 +02:00
Andre Heinecke
6d7b4382c3
json: Ensure that native msging request is string
* src/gpgme-json.c (native_messaging_repl): Ensure that the
request is NULL terminated.

--
This avoids potential memory leaks and access to unmapped memory
in case the request was not terminated.
Other request functions use es_read_line which gurantees NULL
termination.
2018-07-18 13:06:08 +02:00
Andre Heinecke
82e4b900a9
json: Fix crash by ensuring response is never NULL
* src/gpgme-json.c (encode_and_chunk): Try to always
return at least an error.
(process_request): Double check that it does not return NULL.

--
If process_request returns NULL the following strlen on it
would crash.
2018-07-18 13:05:48 +02:00
Andre Heinecke
b78140daf7
json: Fix memory errors in create_keylist_patterns
* src/gpgme-json.c (create_keylist_patterns): Reserve two
pointers more then linefeeds.
(create_keylist_patterns): Fix loop to count linebreaks.
(create_keylist_patterns): Use calloc for good measure.

--
This fixes crashes and memory corruption as cnt did not
match i.
2018-07-18 12:57:51 +02:00
Andre Heinecke
16462c54b3
qt: Handle encoding for diagnostics
* lang/qt/src/threadedjobmixin.cpp (fromEncoding)
(stringFromGpgOutput): New helpers.
(markupDiagnostics): Use it.

--
The Problem is that on my western windows system GnuPG
gets CP 437 as GetConsoleOutputCP and prints in that codepage.
In a W32 GUI Application we get 0 as GetConsoleOutputCP and 1252
with GetACP.

The only thing that seemed to somehow match was GetOEMCP but
that might just be luck and it might still be broken in
other windows languages.

This code is also used in Kleopatra so it might make sense
to make it public once it is demonstrated that it works on
most systems.
2018-07-18 11:27:46 +02:00
Andre Heinecke
1686e07e77
json: Fix crash on invalid json
* src/gpgme-json.c (process_request): Init res. Check for
json object before encode and chunk.

--
If json is invalid we can't read chunksize and would crash
in encode and chunk.
2018-07-16 19:47:11 +02:00
Andre Heinecke
cc21101a74
json: Fix uninitialized key unref in op_delete
* src/gpgme-json.c (op_delete): Init key.
2018-07-16 19:46:04 +02:00
Werner Koch
1933f5b805
json: Minor cleanups in cJSON.c
* src/cJSON.c: Add comments on the origin of the code.
(parse_string): Allocate an extra byte for safeness.
(cJSON_AddItemToArray): Allo ARRAY to be NULL.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-07-16 14:42:30 +02:00
Werner Koch
013a7f47ab
json: Fix buffer overflow in cJSON.c
* src/cJSON.c (parse_string): Correctly detect bad hex.
--

The call to parse_hex4 checks that only hex digits follow and in the
error case returns 0.  However, by the time of the combined check for
an invalid value and the error PTR has already been set to the last
hex character and thus if the end-of-string or a quote character was
one of the bad hex digits the loop will miss the end of the string
which does not match with the simple buffer length allocation test at
the begin of the function.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-07-16 12:37:06 +02:00
Ben McGinnes
1bb3f8409d python bindings: example scripts
* Fixed incorrect mention of output prompt referencing secret keys
  when the scripts are only for exporting public keys in whole or
  minimised forms.
2018-07-13 20:36:27 +10:00
Andre Heinecke
6cc842c9aa
json: Add with-sec-fprs param to export
* src/gpgme-json.c (add_secret_fprs): New helper.
(op_export, hlp_export): Extend for with-sec fprs.

--
This is a request from Mailvelope, to import an export
they need the information for which keys from the export
a secret key is also available. For simplicity it is
much preferred to get this information in a single call
without the need to do and parse a keylisting additionally
in a second native-messaging call.

So we make it optional to include that info in the export.
2018-07-11 16:18:24 +02:00
Ben McGinnes
0e760e396f example scripts: python work-arounds
* fixed three typos which were guaranteed to break said script.
2018-07-10 13:40:18 +10:00
Ben McGinnes
1eceacaff4 docs: python bindings howto
* Complete typographic overhaul.
* Removed all section level indentation since it does not affect
  output formatting, but might affect source code examples.
* In text-mode stripped out all tabs which had crept in and replaced
  them with four spaces.
* Updated all code examples (again) to conform with Python-mode.
* Bumped version number in preparation for next release of GPG 2.2.9
  and corresponding GPGME release.
2018-07-09 21:30:20 +10:00
Andre Heinecke
40471ec12f
json: Add with-secret without secret only
* src/gpgme-json.c (op_keylist, hlp_keylist): Add "with-secret"
as a flag to do a public keylist with secret information.
2018-07-09 11:36:28 +02:00
Andre Heinecke
c287f09ac0
tests: Add --with-secret to run-keylist.c
* run-keylist.c (show_usage, main): Add --with-secret.
2018-07-09 11:17:27 +02:00
Andre Heinecke
31bc51e2af
doc: More explicit doc for EXTERN and LOCAL modes.
* doc/gpgme.texi (GPGME_KEYLIST_MODE_EXTERN),
(GPGME_KEYLIST_MODE_LOCATE, GPGME_KEYLIST_MODE_LOCAL): Mention
command line flags for CMS and OpenPGP Protocol.

--
This might help new users coming to gnupg to understand what
the flags do.
2018-07-09 11:10:19 +02:00
Andre Heinecke
7bc5d3c7e4
Add ctx flag for auto-key-locate
* src/context.h (gpgme_context): Add auto_key_locate.
* src/engine-gpg.c (engine_gpg): Add auto_key_locate.
(gpg_set_engine_flags, build_argv): Handle auto_key_locate.
(gpg_release): Free auto_key_locate.
* src/gpgme.c (gpgme_release): Free auto_key_locate.
(gpgme_get_ctx_flag, gpgme_set_ctx_flag): Handle auto-key-locate.
* doc/gpgme.texi: Document auto-key-locate flag.
* tests/run-keylist.c (show_usage, main): Add --from-wkd option.

--
This enables users of GPGME to control more fine grained what
auto-key-locate does.  Especially for WKD lookups / refreshes
can this be useful.

GnuPG-Bug-Id: T2917
Differential Revision: https://dev.gnupg.org/D463
2018-07-09 10:58:04 +02:00
Ben McGinnes
cacca62d06 python bindings: howto examples
* Made sure all example scripts meet PEP8 compliance.
* Required fixing approx. a dozen of them in minor ways.
2018-07-08 03:40:35 +10:00
Andre Heinecke
66c2a99422
qt: Handle OpenPGP Diagnostic log
* lang/qt/src/threadedjobmixin.cpp (_detail::audit_log_as_html):
Handle OpenPGP audit log differently.
2018-07-05 11:29:36 +02:00
Andre Heinecke
629afebe50
cpp: Add enum mapping for GPGME_AUDIT_LOG_DIAG
* src/context.cpp (to_auditlog_flags): Map DIAG value.
* src/context.h (AuditLogFlags): Add it.
2018-07-05 11:29:36 +02:00
Andre Heinecke
a2458806f8
core: Add gpg auditlog to get diagnostics
* src/engine-gpg.c (engine_gpg): Add diagnostics member.
(gpg_release): Release diagnostics data.
(gpg_new): Set up logger-fd and diagnostics.
(gpg_getauditlog): New. Copy diagnostics to a user data.
(engine_ops): Add getauditlog.
* src/engine-gpgsm.c (gpgsm_getauditlog): Return not implemented
for GPGME_AUDITLOG_DIAG.
* src/getauditlog.c (getauditlog_start): Don't reset engine
for diagnostics.
* src/gpgme.h.in (GPGME_AUDITLOG_DIAG): New.
(GPGME_AUDITLOG_DEFAULT): New alias to 0.
* tests/run-decrypt.c (show_usage, main): Add --diagnostics.
* doc/gpgme.texi(Additional Logs): Document getauditlog.

--
This enables users of GPGME to get more verbose information
from gpg which can assist users in figuring out a problem
that was before hidden behind a generalized error like
"Decryption Failed".

For GPGSM it is not yet available as it is problematic to
get it properly in server mode and GPGSM already had the
original audit log mechanism in place.

GPGME_AUDITLOG_DEFAULT was added for a more explicit
documentation.
2018-07-05 11:29:36 +02:00
Andre Heinecke
7d65dc2a5c
cpp: Fix memory of DecryptionResult::symkeyAlgo
* lang/cpp/src/decryptionresult.cpp (Private, ~Private): strdup
the symkey algo.
2018-07-04 12:17:43 +02:00
Andre Heinecke
76b8470915
json: Add keylist mode locate
* src/gpgme-json.c (op_keylist, hlp_keylist): Add locate.

--
The same rationale for the KEYLIST_MODE_LOCATE in GPGME
also applies here. It makes the API a little less magic.
2018-07-04 11:14:44 +02:00
Ben McGinnes
5bca499750 python bindings: scheming serpents
* Apparently I am wrong and Scheme is the new Python after all.
* Non-import related PEP8 compliance must wait for another day, though
  the other PEP8 fixes remain.
2018-07-02 05:05:09 +10:00
Ben McGinnes
789ea1b019 python bindings: gpg.core
* Changed id/else statements to a more pythonic form from scheme
  masquerading as python - sorry Justus, it had to go ;).
* With the added bonus of enabling PEP8 compliance in those sections.
* Fixed remaining PEP8 compliance issues with the exception of the
  imports at the beginning of the file (changing those will break the
  entire module, so we'll cope with it as it is).
2018-07-02 03:55:19 +10:00
Ben McGinnes
35e29e1395 m4 update: python 3.7
* Fixed an error in arcane m4 syntax.
2018-06-29 14:52:37 +10:00
Ben McGinnes
43a2b57545 python bindings: python 3.7
* Bindings confirmed to work with the newly released 3.7.0.
* Updated M4 file to reflect this change and correct the Python binary
  search order (3.7 is not yet given priority, but will still be found
  first via the more generic python3 executable).
* Updated setup.py.in, bindings documentation and README to reflect this.
2018-06-29 14:26:30 +10:00
Ben McGinnes
48174b2bcc whitespace police:
* There's always one or, in this case, two.
2018-06-28 18:51:47 +10:00
Ben McGinnes
6aec7d6e4a docs: python bindings howto
* Updated official doc (the org-mode file) with the instructions on
  importing and exporting both public and secret keys.
2018-06-28 18:51:47 +10:00
Ben McGinnes
a7ccdc51ef python bindings examples
* Added a secret key export variant which saves output as both GPG
  binary and ASCII armoured, plus saves in $GNUPGHOME and uses
  multiple methods of determining what that location is.
2018-06-28 18:51:47 +10:00
Ben McGinnes
7fc7e80e54 python bindings examples
* Added a key import variant which accesses the SKS keyservers in a
  RESTful fashion and then imports or attempts to import the response.
2018-06-28 18:51:47 +10:00
Ben McGinnes
0d163a7d12 python bindings examples: three export scripts
* Example of default exporting keys.
* Example of exporting minimised keys.
* Example of exporting secret keys to a file with correct permissions.

Signed-off-by: Ben McGinnes <ben@adversary.org>
2018-06-28 18:51:47 +10:00
Ben McGinnes
4251cae34d python bindings: import example
* Added an example script for importing a key from a file (either
  ASCII armoured or not).
2018-06-28 18:51:47 +10:00
Ben McGinnes
a5b91b21f5 python bindings: export secret keys
* The holy grail: a function to export secret keys.
* GPGME will still invoke pinentry and gpg-agent as usual to authorise
  the export.
* Mostly similar to the two previous export functions for public keys
  except that it will return None if the result had a length of zero
  bytes.  Meaning that the difference between the specified pattern
  (if any) not matching available keys and an incorrect passphrase is
  not able to be determined from this function (or the underlying one
  for that matter).

Signed-off-by: Ben McGinnes <ben@adversary.org>
2018-06-28 18:51:47 +10:00