test: sasl/binary-sasl.test.py fails

[Totktonada]

I'm going to disable the test in the scope of #49. It however need to be investigated and enabled back. Observed the following errors:

# cat test/var/binary-sasl.result
#---------------------------# sasl tests #--------------------------#
Error on line sasl/binary-sasl.test.py:97: 32 not equal 0
Error on line sasl/binary-sasl.test.py:53: 32 not equal 1
Error on line sasl/binary-sasl.test.py:102: 32 not equal 0
Error on line sasl/binary-sasl.test.py:45: -1 not equal 0
Error on line sasl/binary-sasl.test.py:107: 32 not equal 0
Error on line sasl/binary-sasl.test.py:53: 32 not equal 1
Error on line sasl/binary-sasl.test.py:112: 32 not equal 0
Error on line sasl/binary-sasl.test.py:45: -1 not equal 0
Error on line sasl/binary-sasl.test.py:53: 32 not equal 1
Error on line sasl/binary-sasl.test.py:137: 32 not equal 0
Error on line sasl/binary-sasl.test.py:139: 32 not equal 0
<<--------------------------------------------------
get foo

After that the test stuck.

If we'll install sasl2-bin package in test.sh (for saslpasswd2 tool, see test/sasl/sasl.lua) the errors will be gone, but the test still stucks:

# cat test/var/binary-sasl.result 
#---------------------------# sasl tests #--------------------------#
<<--------------------------------------------------
get foo

[ligurio]

With patch:

--- a/test/sasl/sasl.lua
+++ b/test/sasl/sasl.lua
@@ -67,6 +67,7 @@ env['SASL_CONF_PATH'] = fio.pathjoin(fio.cwd(), '../sasl/config/')
 box.cfg{
     wal_mode = 'none',
     slab_alloc_arena = 0.1,
+    log_level = 7,
 }
 
 local memcached = require('memcached')

log 'test/var/001_sasl/sasl.log' says:

2021-12-16 12:03:12.686 [1072974] main/123/server/127.0.0.1:33502 mc_sasl.c:142 E> SASL <level 2> Couldn't find mech XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
2021-12-16 12:03:12.686 [1072974] main/123/server/127.0.0.1:33502 mc_sasl.c:244 E> <memcached_sasl_auth>: Failed <sasl_server_start> with exit code -4
2021-12-16 12:03:12.686 [1072974] main/123/server/127.0.0.1:33502 mc_sasl.c:142 E> SASL <level 2> Password verification failed
2021-12-16 12:03:12.686 [1072974] main/123/server/127.0.0.1:33502 mc_sasl.c:244 E> <memcached_sasl_auth>: Failed <sasl_server_start> with exit code -20
2021-12-16 12:03:12.686 [1072974] main/123/server/127.0.0.1:33502 mc_sasl.c:142 E> SASL <level 2> Password verification failed
2021-12-16 12:03:12.686 [1072974] main/123/server/127.0.0.1:33502 mc_sasl.c:244 E> <memcached_sasl_auth>: Failed <sasl_server_start> with exit code -20
2021-12-16 12:03:12.689 [1072974] main/128/server/127.0.0.1:33512 mc_sasl.c:142 E> SASL <level 2> Password verification failed
2021-12-16 12:03:12.689 [1072974] main/128/server/127.0.0.1:33512 mc_sasl.c:244 E> <memcached_sasl_auth>: Failed <sasl_server_start> with exit code -20
2021-12-16 12:03:12.689 [1072974] main/129/server/127.0.0.1:33514 mc_sasl.c:142 E> SASL <level 2> Password verification failed
2021-12-16 12:03:12.689 [1072974] main/129/server/127.0.0.1:33514 mc_sasl.c:244 E> <memcached_sasl_auth>: Failed <sasl_server_start> with exit code -20
2021-12-16 12:03:12.690 [1072974] main/130/server/127.0.0.1:33516 mc_sasl.c:142 E> SASL <level 2> Password verification failed
2021-12-16 12:03:12.690 [1072974] main/130/server/127.0.0.1:33516 mc_sasl.c:244 E> <memcached_sasl_auth>: Failed <sasl_server_start> with exit code -20
2021-12-16 12:03:24.776 [1072974] main C> got signal 2 - Interrupt

[ligurio]

Looks like SASL doesn't work:

$ pip2 install python-binary-memcached==0.27.0
$ cat sasl-client.py 
import bmemcached
client = bmemcached.Client(('127.0.0.1:8080', ), 'testuser', 'testpasswd')
client.set('key', 'value')
client.set('key1', 'value1')
print(client.get('key'))
print(client.get('key1'))
$ cat init.lua
box.cfg{
    log_level = 7,
    feedback_enabled = false,
}
mc = require('memcached')
m = mc.create('instance_1', '8080', {
    expire_enabled = false,
    verbosity = 3,
    sasl = true
})

require('console'):start()
$ export SASL_CONF_PATH=$(pwd)/test/sasl/config
$ tarantool init.lua
...
$ python2 sasl-client.py:
Traceback (most recent call last):
  File "sasl-client.py", line 3, in <module>
    client.set('key', 'value')
  File "/home/sergeyb/.local/lib/python2.7/site-packages/bmemcached/client/replicating.py", line 172, in set
    returns.append(server.set(key, value, time, compress_level=compress_level))
  File "/home/sergeyb/.local/lib/python2.7/site-packages/bmemcached/protocol.py", line 606, in set
    return self._set_add_replace('set', key, value, time, compress_level=compress_level)
  File "/home/sergeyb/.local/lib/python2.7/site-packages/bmemcached/protocol.py", line 573, in _set_add_replace
    time, str_to_bytes(key), value))
  File "/home/sergeyb/.local/lib/python2.7/site-packages/bmemcached/protocol.py", line 239, in _send
    self._open_connection()
  File "/home/sergeyb/.local/lib/python2.7/site-packages/bmemcached/protocol.py", line 151, in _open_connection
    self._send_authentication()
  File "/home/sergeyb/.local/lib/python2.7/site-packages/bmemcached/protocol.py", line 314, in _send_authentication
    raise MemcachedException('Code: %d Message: %s' % (status, extra_content), status)
bmemcached.exceptions.MemcachedException

Description of SASL commands is here https://github.com/couchbase/memcached/blob/master/docs/sasl.md
NOTE: SASL support has been added in c49af59.

[ligurio]

Sample sasl-client.py described in previous comment works after fixes added to branch ligurio/gh-51-fix-sasl.