Re: [Twisted-Python] ldaptor problem with STARTTLS and python 3

2019-05-29 Thread Thomas Westfeld
>On Wed, 29 May 2019 at 08:21, Thomas Westfeld
> wrote:
>>
>
>[snip]
>
>> Dear all,
>>
>> it turns out to be an issue with binary vs. string. The __str__ method was 
>> called by
>the errback only. This has been fixed in pull request #147 already. All the 
>observed
>errors have been fixed in the pre-release 19.1 version of ldaptor. The example 
>is
>working with STARTTLS when using HEAD.
>>
>> Thanks for the great community for fixing things so quickly.
>>
>> I am looking forward to the 19.1. release.
>>
>
>Hi Thomas,
>
>If you have time, you can check https://github.com/twisted/ldaptor/pull/148
>
>I guess that once that PR is merged we can make a new public release
>
>Are you testing this on Python2 or Python3?
>

I am testing this both on Python 2.7 and on Python 3.6, however for my 
production setting I want to go to Python 3.6 or 3.7 respectively. The 
sundowning of Python 2.7 forced me to port my programs.

>--
>Adi Roiban
>
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Re: [Twisted-Python] ldaptor problem with STARTTLS and python 3

2019-05-29 Thread Adi Roiban
On Wed, 29 May 2019 at 08:21, Thomas Westfeld
 wrote:
>

[snip]

> Dear all,
>
> it turns out to be an issue with binary vs. string. The __str__ method was 
> called by the errback only. This has been fixed in pull request #147 already. 
> All the observed errors have been fixed in the pre-release 19.1 version of 
> ldaptor. The example is working with STARTTLS when using HEAD.
>
> Thanks for the great community for fixing things so quickly.
>
> I am looking forward to the 19.1. release.
>

Hi Thomas,

If you have time, you can check https://github.com/twisted/ldaptor/pull/148

I guess that once that PR is merged we can make a new public release

Are you testing this on Python2 or Python3?

-- 
Adi Roiban

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Re: [Twisted-Python] ldaptor problem with STARTTLS and python 3

2019-05-29 Thread Thomas Westfeld
>-Original Message-
>From: Twisted-Python [mailto:twisted-python-boun...@twistedmatrix.com] On
>Behalf Of Adi Roiban
>Sent: Tuesday, May 28, 2019 12:39 PM
>To: Twisted general discussion
>Subject: Re: [Twisted-Python] ldaptor problem with STARTTLS and python 3
>
>On Tue, 28 May 2019 at 11:22, Thomas Westfeld
> wrote:
>>
>> Dear all,
>>
>> I am experiencing an error when trying to use the quick usage example posted 
>> on
>the ldaptor github page https://github.com/twisted/ldaptor . I have included 
>the
>starttls command to promote the connection to an encrypted one, but I am
>experiencing an deprecation warning:
>>
>> DeprecationWarning: LDAPStartTLSInvalidResponseName.__str__ method is
>deprecated and will not be used for getting bytes representation in the future
>releases, use LDAPStartTLSInvalidResponseName.toWire instead
>>   category=DeprecationWarning)
>>
>> This puzzles me as I cannot track this error down. The usual strategy to 
>> introduce
>debugging print statements or start the debugger like "import pdb; 
>pdb.set_trace()"
>does not work. I would appreciate help here how to debug this deferred code.
>>
>> Besides this warning I am receiving no output whatsoever. Also print 
>> statements in
>the example method do not print anything, which is strange to me.
>>
>> To debug it on a networking level, I have wiresharked the ldap communication 
>> and
>it seems fine (see below):
>>
>> REQUEST
>>
>> Transmission Control Protocol, Src Port: 53964, Dst Port: 389, Seq: 1, Ack: 
>> 1,
>Len: 31
>> Lightweight Directory Access Protocol
>> LDAPMessage extendedReq(1)
>> messageID: 1
>> protocolOp: extendedReq (23)
>> extendedReq
>> requestName: 1.3.6.1.4.1.1466.20037 (LDAP_START_TLS_OID)
>> [Response In: 2587]
>>
>> RESPONSE
>>
>> Transmission Control Protocol, Src Port: 389, Dst Port: 53964, Seq: 1, Ack: 
>> 32,
>Len: 46
>> Lightweight Directory Access Protocol
>> LDAPMessage extendedResp(1)
>> messageID: 1
>> protocolOp: extendedResp (24)
>> extendedResp
>> resultCode: success (0)
>> matchedDN:
>> errorMessage:
>> responseName: 1.3.6.1.4.1.1466.20037 (LDAP_START_TLS_OID)
>> [Response To: 2581]
>> [Time: 0.24000 seconds]
>>
>> I have posted the example code with the starttls command in this gist:
>>
>> https://gist.github.com/westfeld/bb1d5e8727ce13910623933e041e9782
>
>It looks like a bug.
>
>With the Python3 migration the usage of the implicit __str__ for
>serialization/marshaling of the LDAP messages was removed.
>
>Please add a new issue/ticket/bug in Github for ldaptor.
>
>I am debugging these things by patching the ldap code and adding a PDB call 
>here
>https://github.com/twisted/ldaptor/blob/d3c191921bd32c359a3e4974c2251f9af852a
>b2b/ldaptor/_encoder.py#L56
>
>then you can go up and see where str is called, and consider if it
>should be repalced with .toWire()
>
>Cheers
>
>--
>Adi Roiban

Dear all,

it turns out to be an issue with binary vs. string. The __str__ method was 
called by the errback only. This has been fixed in pull request #147 already. 
All the observed errors have been fixed in the pre-release 19.1 version of 
ldaptor. The example is working with STARTTLS when using HEAD.

Thanks for the great community for fixing things so quickly.

I am looking forward to the 19.1. release.


Regards,
Thomas
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Re: [Twisted-Python] ldaptor problem with STARTTLS and python 3

2019-05-28 Thread Adi Roiban
On Tue, 28 May 2019 at 11:22, Thomas Westfeld
 wrote:
>
> Dear all,
>
> I am experiencing an error when trying to use the quick usage example posted 
> on the ldaptor github page https://github.com/twisted/ldaptor . I have 
> included the starttls command to promote the connection to an encrypted one, 
> but I am experiencing an deprecation warning:
>
> DeprecationWarning: LDAPStartTLSInvalidResponseName.__str__ method is 
> deprecated and will not be used for getting bytes representation in the 
> future releases, use LDAPStartTLSInvalidResponseName.toWire instead
>   category=DeprecationWarning)
>
> This puzzles me as I cannot track this error down. The usual strategy to 
> introduce debugging print statements or start the debugger like "import pdb; 
> pdb.set_trace()" does not work. I would appreciate help here how to debug 
> this deferred code.
>
> Besides this warning I am receiving no output whatsoever. Also print 
> statements in the example method do not print anything, which is strange to 
> me.
>
> To debug it on a networking level, I have wiresharked the ldap communication 
> and it seems fine (see below):
>
> REQUEST
>
> Transmission Control Protocol, Src Port: 53964, Dst Port: 389, Seq: 1, Ack: 
> 1, Len: 31
> Lightweight Directory Access Protocol
> LDAPMessage extendedReq(1)
> messageID: 1
> protocolOp: extendedReq (23)
> extendedReq
> requestName: 1.3.6.1.4.1.1466.20037 (LDAP_START_TLS_OID)
> [Response In: 2587]
>
> RESPONSE
>
> Transmission Control Protocol, Src Port: 389, Dst Port: 53964, Seq: 1, Ack: 
> 32, Len: 46
> Lightweight Directory Access Protocol
> LDAPMessage extendedResp(1)
> messageID: 1
> protocolOp: extendedResp (24)
> extendedResp
> resultCode: success (0)
> matchedDN:
> errorMessage:
> responseName: 1.3.6.1.4.1.1466.20037 (LDAP_START_TLS_OID)
> [Response To: 2581]
> [Time: 0.24000 seconds]
>
> I have posted the example code with the starttls command in this gist:
>
> https://gist.github.com/westfeld/bb1d5e8727ce13910623933e041e9782

It looks like a bug.

With the Python3 migration the usage of the implicit __str__ for
serialization/marshaling of the LDAP messages was removed.

Please add a new issue/ticket/bug in Github for ldaptor.

I am debugging these things by patching the ldap code and adding a PDB call here
https://github.com/twisted/ldaptor/blob/d3c191921bd32c359a3e4974c2251f9af852ab2b/ldaptor/_encoder.py#L56

then you can go up and see where str is called, and consider if it
should be repalced with .toWire()

Cheers

-- 
Adi Roiban

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