Dear all,

First, many thanks for creating and sharing this great tool which is ELOG! Our users are very happy with it!

I have few questions about inserting images into the entries.

From time to time our users insert them directly in the editor what leads to encoding the whole image in the HTML log file and the images does not appear in the attachments list. Saving and further editing of such entries slows down the whole ELOG server which uses 100% of CPU.

I'm not sure how they do it Ctrl+C & Ctrl+V, drag & drop, etc.. What I know is that if they add it using the "Insert image" action in the editor there are no problems and the images are properly listed in the attachments.

I read in the docs:

uploading or downloading an attachement file is a single request, and causes the entire file to be loaded in server memory while the request is being processed.
This is not normally a problem for the sort of short, text-mode entries ELOG is designed to support. However, if a user starts to upload or download a large attachment file (or image) over a slow link, all other users on that ELOG server will have to wait for that transfert to finish before they can access any logbook on that server. This is why there is a low limit on the size of attachments, and why ELOG should not be used to distribute large files under intensive multi-user conditions.

but I think this is not our case. Here I talk about wrongly inserting a single image of 700KiB.

So, I'm asking:

1. Is the behavior that we observe something already detected? If yes, which are exactly the wrong ways of inserting the images?
2. Is it fixed in newer ELOG versions?
3. Is it possible to disable the wrong ways of inserting the images in order to avoid such problems?

Many thanks in advance for your help!

I found the most limiting factor of ELOG to be the file access. ELOG stores all entries in files and therefore has a lot of disk access.

We found that an AFS directory for ELOG is unusable. We tried to store our logbooks on NFS, and it was barely usable but slow. Now we use a local disk on the server, that works fine.

If you want to speed up ELOG the best approach is a dedicated server with a local SSD storage.

Would it be possible to create a new command "List format <attribute> = <css_class_name>,<css_class_value>,<width>,<size>", or is there another way to achieve this?

Okay, found some solution for my problem:

And file themes/default/pikett.css contains:

That works like a charm - until I log in to the logbook. Then the include of the CSS in the header is garbled with some "prefix" of random chars:

And a quick check in the source code shows some bad code:

L7615: function "show_html_header"

Here css_base is a not initialized local variable of the function. In fact the above line is the only reference of that variable char css_base[1000].

The bug is still present in elog-3.1.4-611489b

Hi Andreas,

the bug you have found was already reported in an earlier issue, together with the same solution you have found.
https://elog.psi.ch/elogs/Forum/69368

Best wishes,
Sebastian

Dear elog users & developers,

the subject line says it all: when using webserver authentication, how is it possible to restict access of users to any given elog? Only using the apche rules? Admin user and Login user do not seem to be doing anything for me. I am using elog as packaged by debian for buster, using an apache ssl proxy. Thank you for providing this software,

Christian

Dear all,

I figured it out. Current global config is (using kerberos instead)

[global]
port = 8081
Default encoding = 0
SSL = 0
Authentication = Kerberos
URL = https://my_url_here/
interface = 127.0.0.1
Password file = global.pwd
SMTP host = my_mail_host
Logfile = /var/log/elog.log
Logging level = 3
User = elog
Grp = elog

Best,

Christian

My config files are often large and use some shell scripting. In these shell scripting part I interact with files and execute scripts in specific folder.
It would be nice to have the ability to define for example a file path once and reuse it in different parts of the config file. It would help to make config files cleaner. For example: