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ID Date Icon Authordown Author Email Category OS ELOG Version Subject
  1469   Mon Oct 17 11:07:10 2005 Reply Johan Nybergjohan.nyberg@tsl.uu.seQuestionLinux2.6.0Re: How to connect to an ELOG server running behind apache+ssl using the elog command line program?

Stefan Ritt wrote:

Johan Nyberg wrote:
I need to post a large number of "old" messages to one of my logbooks and I am trying to modify the script doelog (see http://midas.psi.ch/elogs/Contributions/10) to suit my needs. I am using apache + ssl for secure logins to my ELOG server. The doelog script uses the elog utility program, which is useful for posting ELOG messages from scripts or from the command line. My problem is that I cannot talk to my ELOG server with elog.


This is because elog does not support "https" through secure socket layers (SSL). Also elogd does not, that's why you use Apache as your proxy. So the only way for you to use elog is to execute it on the server, where it can directly connect to elogd without going through the ssl layer of Apache.


Hi Stefan,

Thanks for your advice. As you say I can add entries using elog to my logbooks if I do it from the server on which elogd runs, in which case ssl and apache are bypassed:

$ elog -h localhost -p 8080 ...

Thanks once again for your excellent software!

Johan
  1474   Thu Oct 20 14:15:14 2005 Question Johan Nybergjohan.nyberg@tsl.uu.se Linux2.6.0beta4Howto force users to supply an email address when registering?
Hi,

Today I noticed that a user had registered without supplying an email address. I am using Self Register = 3, which means I recieve an email from elogd when a new user wants to register. Apparently, I forgot to check that the users email field was empty. This empty email field led to a situation in which no email notifications were sent to the users. The elogd log file looks like this for a user with a registered email address:

20-Oct-2005 12:20:21 [<snip>] {AGATA SDA} RCPT TO: <johan.nyberg@tsl.uu.se>
20-Oct-2005 12:20:21 [<snip>] {AGATA SDA} 250 Ok

while it looks like this for a user with an epmty email address:

20-Oct-2005 12:20:22 [<snip>] {AGATA SDA} RCPT TO: <>
20-Oct-2005 12:20:22 [<snip>] {AGATA SDA} 501 Bad address syntax

When elogd hits this error it stops the process of sending emails, which means that no emails
at all are sent to any of the users. After manually adding the email address of the user with an empty address,
automatic email notification work again.

Is there a way to force the users to supply an email address when they register?

Johan
  1476   Sat Oct 22 00:21:03 2005 Reply Johan Nybergjohan.nyberg@tsl.uu.se Linux2.6.0beta4Re: Howto force users to supply an email address when registering?

Stefan Ritt wrote:

Johan Nyberg wrote:
Is there a way to force the users to supply an email address when they register?


I will happily implement such an email check if you supply me further information. Presume you enter an email address in the form user#domain.com (# instead @). Does your SMPT server then complain, too? What about user@com (without "domain.")? If you check all possibilities and let me know, I will put it in.


Hi Stefan,

Sorry for the delayed reply. I have run some tests which I will send to you by email.

Johan
  68213   Tue Jan 12 11:35:55 2016 Idea Johan Forsbergjohan.forsberg@maxlab.lu.seRequestLinuxV3.1.0-2411f95Prefill attributes for new post

Hi all,

I have a use case for ELOG where I need to be able to "prefill" some attributes in the "cmd=new" form, based on the URL.

To illustrate, imagine a link that takes the user directly to the form for creating a new post, with the "Subsystem" attribute already filled out to "Vacuum".

Is this possible already? I've tried naively using URL parameters (e.g. "&Subsystem=Vacuum") but that does not work. If it's not implemented, I think it would be a useful feature to have (and quite important for my particular use case). I could create a new post first using the "elog" tool, with the desired attributes set, but it makes more sense to defer the actual creation of the post to the user, i.e. he/she might change their mind before pressing "submit".

Thanks,

Johan Forsberg, MAX IV Laboratory, Sweden

  68216   Tue Jan 12 14:05:55 2016 Reply Johan Forsbergjohan.forsberg@maxlab.lu.seRequestLinuxV3.1.0-2411f95Re: Prefill attributes for new post

Wow, than you both for the quick response! I agree it's quite a hidden gem, but the most important thing is that it works, thanks!

Stefan Ritt wrote:

Put a "p" in front of the attribute, like "&pSubsystem=Vacuum". This is kind of an undocumented feature just for the experts ;-)

Johan Forsberg wrote:

Hi all,

I have a use case for ELOG where I need to be able to "prefill" some attributes in the "cmd=new" form, based on the URL.

To illustrate, imagine a link that takes the user directly to the form for creating a new post, with the "Subsystem" attribute already filled out to "Vacuum".

Is this possible already? I've tried naively using URL parameters (e.g. "&Subsystem=Vacuum") but that does not work. If it's not implemented, I think it would be a useful feature to have (and quite important for my particular use case). I could create a new post first using the "elog" tool, with the desired attributes set, but it makes more sense to defer the actual creation of the post to the user, i.e. he/she might change their mind before pressing "submit".

Thanks,

Johan Forsberg, MAX IV Laboratory, Sweden

 

 

  68217   Tue Jan 12 15:06:42 2016 Idea Johan Forsbergjohan.forsberg@maxlab.lu.seQuestionLinuxELOG V3.1.0-241Monitoring a logbook for changes

Hi again!

I've another need that you probably already thought of :)

I'd like to be able to efficiently monitor a logbook for changes (new or edited posts) somehow. The most reasonable way I've found so far is to periodically poll a search that looks for posts after the time of the last poll. But that might note be very efficient, especially if the polling period gets short (or number of clients grows).

Is there some other feature that could be used for this? I was thinking maybe the ETag or Last-Modified HTTP header field could be used to show changes to a logbook by just reading the headers, but it would also require HEAD request support which does not seem to be there.

Cheers,

Johan

  68226   Wed Jan 13 10:27:21 2016 Reply Johan Forsbergjohan.forsberg@maxlab.lu.seQuestionLinuxELOG V3.1.0-241Re: Monitoring a logbook for changes

Yeah, I found the RSS feed feature, but I could not get ETags/Last-Modified header fields which meant that I'd have to read and parse the entire feed every time. Maybe I made a mistake and they do work, but if not, I think it would make sense to implement as it should save work for both the server and the client.

 

Johan Forsberg wrote:

Hi again!

I've another need that you probably already thought of :)

I'd like to be able to efficiently monitor a logbook for changes (new or edited posts) somehow. The most reasonable way I've found so far is to periodically poll a search that looks for posts after the time of the last poll. But that might note be very efficient, especially if the polling period gets short (or number of clients grows).

Is there some other feature that could be used for this? I was thinking maybe the ETag or Last-Modified HTTP header field could be used to show changes to a logbook by just reading the headers, but it would also require HEAD request support which does not seem to be there.

Cheers,

Johan

 

  68227   Wed Jan 13 10:29:54 2016 Reply Johan Forsbergjohan.forsberg@maxlab.lu.seQuestionLinuxELOG V3.1.0-241Re: Monitoring a logbook for changes

Yeah, I suppose something like that would be both faster and more efficient than polling ELOG itself. Fortunately the ELOG disk format looks easily parsed.

Thanks for the pointer!

Tamas Gal wrote:

I recommend monitoring directly on the server. Here is an example of a very simply Python script (https://github.com/tamasgal/elog-slack) which monitors the files very efficiently and immediately pushes notifications to Slack (slack.com). Just look at the code, it's pretty straight forward and very easy to adapt it to other (web) services.

Btw. here is an ELOG entry of it https://midas.psi.ch/elogs/Forum/68224

Johan Forsberg wrote:

Hi again!

I've another need that you probably already thought of :)

I'd like to be able to efficiently monitor a logbook for changes (new or edited posts) somehow. The most reasonable way I've found so far is to periodically poll a search that looks for posts after the time of the last poll. But that might note be very efficient, especially if the polling period gets short (or number of clients grows).

Is there some other feature that could be used for this? I was thinking maybe the ETag or Last-Modified HTTP header field could be used to show changes to a logbook by just reading the headers, but it would also require HEAD request support which does not seem to be there.

Cheers,

Johan

 

 

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