Demo Discussion
Forum Config Examples Contributions Vulnerabilities
  Discussion forum about ELOG, Page 729 of 806  Not logged in ELOG logo
icon3.gif   add a little function--go to the specified page number, posted by Xuan Wu on Tue May 14 09:40:58 2019 pagination.pnggoto.patch

Hi all,

I added an input widget for pagination. I'd like to share it here, maybe someone needs. If there are many pages,  specifying the page number will be useful. 

The picture and patch code are in the attachment

Regards,

Xuan

    icon3.gif   Re: elog hanged when uploading photo failed, posted by Xuan Wu on Wed Oct 16 13:20:31 2019 error.png

Hi all,

I've found a bug in elog. It's all right that uploading an image which file name with special characters. I think it must have something to do with the code like"url_encode(file_enc, sizeof(file_enc));  /* for file names with special characters like "+" */". If I clicked the "Make small/Make larger/Original size/Rotate left/Rotate right" button, the elog server will hang. How it can be fixed? The attached image shows the debug info.

Xuan

Stefan Ritt wrote:

The problem is you have some weird characters in your file name R2BLM15 ? ? ? ? ? .PNG which confuses the interpreter. There should not be any special character or blanks in attached images.

Stefan

Xuan Wu wrote:

Hi all,

  We came across a problem recently when clicking "Upload" button, then elog hanged and never being accessed. I have checked the elog logs and find that it seems that elog didn't get the path of the picture for some reason. So is it a bug or our operation isn't correct?

 

 

icon3.gif   Subdirectories in logbooks, posted by pavel on Sat Nov 9 22:44:23 2019 

Hello, Is there any way to organize logbooks in some kind of tree with sublogbooks or just have a subdirectories in a logbook directory on the filesystem (treat it as a sublogbook if its name is different from 4 digits of year and pin above all the entries in a list) to structure entires a bit?

 

icon3.gif   Example scripts how to migrate or combine logbooks, posted by Roger Kalt on Mon Nov 18 16:58:21 2019 run_modif.shgenerate_import_llrf_fwd.sh

Attached the shell scripts using awk and sed how I have migrated two separated logbooks into one single and how I re-adjusted certain attributes.

icon3.gif   ELOG Null Pointer Dereference Denial-of-Service Vulnerability, posted by Stefan Ritt on Wed Feb 12 13:19:31 2020 

An ELOG vulnerability has been reported, thanks to Asif Akbar of Trend Micro Security Researchworking with Trend Micro's Zero Day Initiative:

https://www.zerodayinitiative.com/advisories/ZDI-20-252/

The issue has been fixed in the current release 3.1.4-033e292 and in the RPM http://elog.psi.ch/elog/download/RPMS/elog-latest.x86_64.rpm

Best,
Stefan

 

icon3.gif   How to add bulk client list at once, posted by Sunilkumar on Sun Mar 29 13:30:09 2020 Screenshot_3.jpg

Please let me know how to add Button for adding client next to Client Mnemonics.

 

I need to add bulk client lists in the Elog page there are 1000+ clients  .

I need to select client from the drop down list if its not there i need to add them using Add Client Button 

Please let me know the steps.

 

 

icon3.gif   SSL connection drop with large content, posted by HyonSan Seo on Mon Aug 10 07:56:43 2020 

Dear all,

 

I had some difficulty to upload large files (>20MB) with SSL connection. I think it is also related to https://elog.psi.ch/elogs/Forum/68636

During debuging, I found that, when uploading large files, ssl connection is dropped since 'SSL_read' function returns -1.

But it doesn't alway mean broken connection. It may be "SSL_ERROR_WANT_READ".

I changed the "server_loop" function in the source code to "continue" when it is SSL_ERROR_WANT_READ. And it fixed the problem.

Here is my code.


## elogd.c "server_loop" function L30031

                        if (FD_ISSET(_sock, &readfds)) {
#ifdef HAVE_SSL
                          if (_ssl_flag){
                            i = SSL_read(_ssl_con, net_buffer + len, net_buffer_size - len);
                            if(i<=0){
                              int ssl_error=SSL_get_error(_ssl_con,i);    ## check ssl error code
                              if(ssl_error==SSL_ERROR_WANT_READ||ssl_error==SSL_ERROR_WANT_WRITE) continue;    ## if ssl wants more, continue
                            }
                          }
                          else
#endif
                            i = recv(_sock, net_buffer + len, net_buffer_size - len, 0);
 


 

I am ignorant about networking. Some experts on ssl connection would know a better way to deal with this problem.

 

Best,

HyonSan Seo

 

    icon3.gif   Re: Query to get values for Attributes, posted by Andreas Luedeke on Mon Sep 21 20:03:49 2020 

That would be a nice feature...

If you are good in parsing HTML you can achieve this feature: when you create a new entry "<elog-URL>?cmd=new", you'll get HTML source code that provides you with all possible attribute choices.

Disclaimer: this only works if you don't use Conditional attributes.

Florian Feldbauer wrote:

Hey,

I'm trying to integrate the Elog into our SlowControl System (Phoebus/EPICS). As a first step I translated the python library to Java. So writing new Entries and viewing them works.
But for Phoebus, you need a list of the possible values for the attributes. Currently this is done via the config file from Phoebus.

Is there a way to get the values also via a query directly from the Elog?

Cheers,
Florian

 

ELOG V3.1.5-3fb85fa6