Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-05-13 Thread via GitHub


AnTu2702 commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-2106808373

   @tpalfy Hey. How are you?
   
   First of all: Thanks for the fix/workaround in NIFI 1.26.
   Although things are basically working there, we still don't seem to be 
through.
   
   The ConsumeIMAP Processor is continuously logging this ERROR...
   (although the mailbox can and will be processed successfully using a 
refreshed token...)
   
   
![image](https://github.com/apache/nifi/assets/5054213/431aeead-5eef-430b-8538-c18907f45985)
   
   We still have serious doubts to take this into production because of the log 
being spammed and of course the fact, that we have no clue, that causes this 
error.
   
   Could you help and double check your fix/workaround?
   Thank you in advance...


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-13 Thread via GitHub


tpalfy commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1994553665

   > Hm... Sorry, but I have doubts about this...
   > 
   > @tpalfy Our access tokens e.g. are valid for 60 minutes only. Due to my 
understanding, the StandardOauth2AccessTokenProvider.java is intentionally 
written such that an authentication exception shall never occur at all! It will 
always automatically refresh any token, BEFORE it will expire (using the 
refresh window) by just asking it for "the access token" from outside calling 
`getAccessDetail()`. It will always be valid this way...
   > 
   > So an authentication exception should IMHO never be intended to occur at 
all...
   > 
   > ...
   > 
   > But simply to have a quickfix für NIFI 1.26 still better than nothing. ;-)
   
   Okay, that's fair. I have a PR up with my proposed changes here: 
https://github.com/apache/nifi/pull/8494
   
   In it's first state it only recreates the mail receiver if an error is 
encountered. I'm going to update it by keeping the first commit, adding a 
revert commit and adding a new one that checks if the token has been refreshed. 
So both approach can be checked.


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-13 Thread via GitHub


AnTu2702 commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1993901612

   Hm... Not sure about this...
   
   Our access tokens e.g. are valid for 60 minutes only.
   Due to my understanding, the StandardOauth2AccessTokenProvider.java is 
intentionally written such that an Authentication Exception shall never occur 
at all! It will automatically refresh any token, BEFORE it will expire (using 
the refresh window) by just asking it for "the access token". It will always be 
valid this way...


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-13 Thread via GitHub


AnTu2702 commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1993902221

   > @AnTu2702 I think I can add a not too complicated change that only 
recreates the `messageReciever` when an authentication exception is encountered 
in a couple of days, hopefully today.
   > 
   > Since there are connections involved and given the fact that onTriggers 
can be called very frequently, it's better to have it like this right away.
   
   Hm... Not sure about this...
   
   @tpalfy Our access tokens e.g. are valid for 60 minutes only.
   Due to my understanding, the StandardOauth2AccessTokenProvider.java is 
intentionally written such that an Authentication Exception shall never occur 
at all! It will automatically refresh any token, BEFORE it will expire (using 
the refresh window) by just asking it for "the access token". It will always be 
valid this way...


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-11 Thread via GitHub


tpalfy commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1988565123

   @AnTu2702 I think I can add a not too complicated change that only recreates 
the `messageReciever` when an authentication exception is encountered in a 
couple of days, hopefully today.
   
   Since there are connections involved and given the fact that onTriggers can 
be called very frequently, it's better to have it like this right away.


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-06 Thread via GitHub


AnTu2702 commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1981577552

   How about a quick bugfix using this new approacj for NIFI 1.26 and then 
refactoring it afterwards?
   We really really depend on having that fixed in the next couple of weeks. 


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-06 Thread via GitHub


tpalfy commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1981377674

   @AnTu2702 Not sure about this new approach.
   I'm not completely against it but I feel like rebuilding only when we get an 
authentication error would be more porper.
   
   Not trivial as it would require some refactoring but I think it could be 
worth it.


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-06 Thread via GitHub


AnTu2702 commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1981009647

   @tpalfy @RomanOttGmx I tried a different solution that does seem to do the 
job:
   
   
![image](https://github.com/apache/nifi/assets/5054213/c0cdd256-a0a3-40d6-9e61-9428e0571335)
   It is a bit ugly, because the `initializeIfNecessary method` will this way 
reinitialize the `messageRecevier` for OAuth2 based access on every `trigger()` 
call.
   
   What do you think?


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-05 Thread via GitHub


AnTu2702 commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1978792542

   @tpalfy You may be right. I just tested the refresh mechanism (not did not 
wait the 3600 s until the first access token really expired) with my intended 
fix that morning.
   But the refreshed token nonetheless needs to be considered by the processor 
accessing the IMAP server.
   And this happens in your `buildurl method`. So the real fix needs to be a 
bit different.


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-05 Thread via GitHub


tpalfy commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1978692871

   Thanks @AnTu2702 and @RomanOttGmx for the explanaion.
   
   As for your fix @AnTu2702 I'm a bit confused though. If we only refresh the 
token but don't rebuild the url I don't see how that would work. Yes, we have a 
fresh token but are we actually using it?


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-05 Thread via GitHub


AnTu2702 commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1978453332

   I was able to build and deploy a local nar file...
   
   
![image](https://github.com/apache/nifi/assets/5054213/e928c7a9-a80a-4f24-8aea-643e1cb03ebf)
   
   ...working fine with the patch!


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-05 Thread via GitHub


AnTu2702 commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1978198291

   > @AnTu2702 The `oauth2AccessTokenProviderOptional` field is used in the 
`buildUrl` method where we call 
`oauth2AccessTokenProvider.getAccessDetails().getAccessToken()`. The 
`getAccessDetail()` should take care of refreshing/reacquiring tokens (this is 
the same call you suggest doing at the beginning of `onTrigger`).
   > 
   > So according to this, token expiration is handled already. Do we have 
proof that this doesn't work for some reason?
   
   Hey. The `this.messageReceiver = this.buildMessageReceiver(context)` and 
thus `buildUrl` method in line 331 is only called once. Reason is line 329: `if 
(this.messageReceiver == null)`
   
   
![image](https://github.com/apache/nifi/assets/5054213/0321114d-e8bf-47cc-af12-df053c7ed1c5)
   


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-05 Thread via GitHub


AnTu2702 commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1978169106

   Overview:
   
![image](https://github.com/apache/nifi/assets/5054213/6609d552-3cb7-4992-904e-f81c9bf0f5ae)
   ConsumeImap:
   
![image](https://github.com/apache/nifi/assets/5054213/91f82cf8-1ea1-4a4a-bf99-f4dd38113cc2)
   
![image](https://github.com/apache/nifi/assets/5054213/b0eaf231-37df-44be-bacd-cfa7bb0c3059)
   StandardOAuth2TokenProvider:
   
![image](https://github.com/apache/nifi/assets/5054213/8ab570f5-7c6c-4154-914f-464caec5e61d)
   


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-04 Thread via GitHub


RomanOttGmx commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1977185841

   In IMAP Processor buildUrl will be triggered on creation of new receiver.
   
   ```
   `protected ImapMailReceiver buildMessageReceiver(ProcessContext 
processContext) {
   ImapMailReceiver receiver = new 
ImapMailReceiver(this.buildUrl(processContext));`
   ```
   
And the buildMessageReceiver is requested here in AbstractEmailProcessor
   ```
private synchronized void initializeIfNecessary(ProcessContext context, 
ProcessSession processSession) {
   if (this.messageReceiver == null) {
   this.processSession = processSession;
   this.messageReceiver = this.buildMessageReceiver(context);
   ```
This is called in onTrigger method of AbstractEmailProcessor, but the 
receiver still exists since start up, so buildUrl will never be requested again 
after enabling the ConsumeImapProcessor.

```
   public void onTrigger(ProcessContext context, ProcessSession processSession) 
throws ProcessException {
   this.initializeIfNecessary(context, processSession);
   ```


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-04 Thread via GitHub


RomanOttGmx commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1977172784

   Yes, implement ConsumeImapProcessor with OAUTH2 and an associated 
oauth2AccessTokenProviderService.
   This Provider is only triggered on the onScheduled Method of the 
AbstractEmailProcessor and oauth2AccessTokenProvider.getAccessDetails() to 
refresh the token is only requested also on onScheduledMethod.
   But in onTriggered Method this will not trigger the 
oauth2AccessTokenProvider.getAccessDetails()
   
   We startet a local debug with break points. Configured the 
ConsumeImapProcessor with Schedule "Cron-Based" every 5 minutes.
   
   onScheduled => triggered on enabling the Processor
   
   Every 5 minutes there is the onTriggered Method triggered and not the 
onScheduled. That is general for all Processors which use the 
AbstractEmailProcessor.
   


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-04 Thread via GitHub


tpalfy commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1976510039

   @AnTu2702 The `oauth2AccessTokenProviderOptional` field is used exclusively 
in the `buildUrl` method where we call 
`oauth2AccessTokenProvider.getAccessDetails().getAccessToken()`. The 
`getAccessDetail()` should take care of refreshing/reacquiring tokens (this is 
the same call you suggest doing at the beginning of `onTrigger`).
   
   So according to this token expiration is handled already. Do we have proof 
that this doesn't work for some reason?


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-04 Thread via GitHub


AnTu2702 commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1976176344

   Here would be my suggestion for a fix:
   
   
![image](https://github.com/apache/nifi/assets/5054213/68b56dca-3c40-4b11-b584-f17e2d4128d4)
   


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2024-03-04 Thread via GitHub


AnTu2702 commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1975971033

   I debugged the AbstractEmailProcessor.java and it seems, that 
AbstractEmailProcessor.java does not handle token expiration at all. The 
StandardOAuth2AccessTokenProvider.Java does, but it would need the 
AbstractEmailProcessor.java to call the:
   
   oauth2AccessTokenProvider.getAccessDetails() 
   
   in the onTrigger() method instead the onSchedule() method to do so.
   
   
![image](https://github.com/apache/nifi/assets/5054213/40403a5b-3a2f-4174-a1a2-af204650bd0e)
   
   The AbstractEmailProcessor.java should be fixed to handle expired OAuth2 
access tokens!
   


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Re: [PR] NIFI-11107 In ConsumeIMAP and ConsumePOP3 added support for OAUTH based authorization. [nifi]

2023-10-09 Thread via GitHub


araujf commented on PR #6900:
URL: https://github.com/apache/nifi/pull/6900#issuecomment-1753670203

   The refresh authentication token is working? When my token is expired, a 
authenticate error is returned.


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