Hi,
  I'm running 
elogd 3.1.4 built Jan 27 2021, 09:56:34 revision 395e101a
on an ubuntu server.

I have a crash when very long filename (200 chars) are attached to an logbook entry.

The uploading of the attachment works almost fine: the filename is truncated and the convert to thumbnail is not working (as a consequence, maybe) but the file is actually uploaded and can be 
downloaded correctly from the entry itself.

However, if I try to access the logbook list which contains that entry, I have a crash:

*** buffer overflow detected ***: terminated
Aborted (core dumped)

[backtrace is attached below]

The only way I found to solve this is to edit manually the log entry and delete the attachment from it.

Any suggestion how to solve this?

Thanks
  Stefano


*** buffer overflow detected ***: terminated

Program received signal SIGABRT, Aborted.
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
50	../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bp
Undefined command: "bp".  Try "help".
(gdb) backtrace 
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x00007ffff7cf4859 in __GI_abort () at abort.c:79
#2  0x00007ffff7d5f29e in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7ffff7e8908f "*** %s ***: terminated\n") at ../sysdeps/posix/libc_fatal.c:155
#3  0x00007ffff7e01aea in __GI___fortify_fail (msg=msg@entry=0x7ffff7e89025 "buffer overflow detected") at fortify_fail.c:26
#4  0x00007ffff7e00386 in __GI___chk_fail () at chk_fail.c:28
#5  0x00007ffff7d5707f in _IO_str_chk_overflow (fp=<optimized out>, c=<optimized out>) at iovsprintf.c:35
#6  0x00007ffff7d64054 in __GI__IO_default_xsputn (n=<optimized out>, data=<optimized out>, f=<optimized out>) at libioP.h:948
#7  __GI__IO_default_xsputn (f=0x7ffffff36ca0, data=<optimized out>, n=241) at genops.c:370
#8  0x00007ffff7d4912c in __vfprintf_internal (s=s@entry=0x7ffffff36ca0, format=format@entry=0x555555622e74 "../%s/%s/%s", ap=ap@entry=0x7ffffff36de0, mode_flags=mode_flags@entry=6)
    at ../libio/libioP.h:948
#9  0x00007ffff7d57129 in __vsprintf_internal (
    string=0x7ffffff37120 
"../DAQ/220325_090630/j5K1OSy8XN9FRPriaBGOmMg3bih07CQKo68Sw6dskclxdOqKaTOsf2bX8UugSWn0s8zaAHe6VWiPcQVnmD8PM1tbQoVMr08dBrXKU2X2tBR4pJ3hlfxbKjspmcbiDTMy32eHIp6lFAVA9lppShmpiut4g4CtgDK3F2bOPzgzXEjPw
W0SJWG"..., maxlen=<optimized out>, format=0x555555622e74 "../%s/%s/%s", args=args@entry=0x7ffffff36de0, mode_flags=6) at iovsprintf.c:95
#10 0x00007ffff7dffe7b in ___sprintf_chk (s=<optimized out>, flag=<optimized out>, slen=<optimized out>, format=<optimized out>) at sprintf_chk.c:40
#11 0x00005555555a939d in display_line ()
#12 0x00005555555ddc8a in show_elog_list ()
#13 0x00005555556010cf in interprete ()
#14 0x0000555555601a33 in decode_get ()
#15 0x000055555560461f in process_http_request ()
#16 0x0000555555607745 in server_loop ()
#17 0x000055555555a92c in main ()

Ubuntu LTS 20.04 and others have elog PDF preview disabled by default. To enable,
please follow these steps, see https://daq00.triumf.ca/DaqWiki/index.php/Ubuntu#Enable_elog_PDF_preview

Enable elog PDF preview
see https://stackoverflow.com/questions/52998331/imagemagick-security-policy-pdf-blocking-conversion

xemacs -nw /etc/ImageMagick-6/policy.xml
remove this section at the end:
<!-- disable ghostscript format types -->
<policy domain="coder" rights="none" pattern="PS" />
<policy domain="coder" rights="none" pattern="PS2" />
<policy domain="coder" rights="none" pattern="PS3" />
<policy domain="coder" rights="none" pattern="EPS" />
<policy domain="coder" rights="none" pattern="PDF" />
<policy domain="coder" rights="none" pattern="XPS" />

K.O.

Hi,

I use some CSS for each elog to resize column correcly and it seems that current ELOG version 3.14 available from EPEL for EL7 has a problem (maybe others also).

The browser console displays an error when loading ELOG logbook page (french locale ):

La feuille de style https:/xxxxx.xxx.xx/elog/MCO/1130_171749_REUNION_20221130_Q01.jpgelog-mco.css n’a pas été chargée car son type MIME, « text/html », n’est pas « text/css ».

It seems ELOG server send the css link with enclosure path (https:/xxxxx.xxx.xx/elog/MCO/1130_171749_REUNION_20221130_Q01.jpg) + css file (elog-mco.css) ?!?

I tryed to rebuild the last source from git under EL7 but it fails with LDAP libs (C++ regression already reported in elog:forum/69478). :-(

Thanks for help.

Laurent

Hi Stefan,

It seems buildrpm should be updated to take care of cpp files. Plz replace "cp <blahblah>.c ..." by "cp <blahblah>.cxx ..." .

Also, uncomment the hostname test witch activates all authentification options by default. It should be done by adding options as follow : buildrpm ver rel -ldap -ker ...

By default, i can not build elog with LDAP.

After that mods, rpms are builded under EL7 (w/o LDAP support which is not useful for me).

Bye

Laurent

Hello, the following URL

https://foo.bar/elog/Shift+Reports/?new_user_name=a2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.com&new_full_name=a2seferewd%40fanneat.com&new_user_email=a2seferewd%40fanneat.com&newpwd=asdf&newpwd2=asdf&cmd=Save

causes elog 3.1.4 to crash. I attach full GDB trace

(gdb) set height 0
(gdb) set print elements 0
(gdb) set print frame-arguments all
(gdb) thread apply all backtrace

Thread 1 (Thread 0x7fc6d1624840 (LWP 1126)):
#0  0x00007fc6d06c6387 in raise () from /lib64/libc.so.6
#1  0x00007fc6d06c7a78 in abort () from /lib64/libc.so.6
#2  0x00007fc6d0708f67 in __libc_message () from /lib64/libc.so.6
#3  0x00007fc6d07a87a7 in __fortify_fail () from /lib64/libc.so.6
#4  0x00007fc6d07a6922 in __chk_fail () from /lib64/libc.so.6
#5  0x00007fc6d07a5e2b in _IO_str_chk_overflow () from /lib64/libc.so.6
#6  0x00007fc6d070d031 in __GI__IO_default_xsputn () from /lib64/libc.so.6
#7  0x00007fc6d06dd033 in vfprintf () from /lib64/libc.so.6
#8  0x00007fc6d07a5eb8 in __vsprintf_chk () from /lib64/libc.so.6
#9  0x00007fc6d07a5e0d in __sprintf_chk () from /lib64/libc.so.6
#10 0x0000000000423b5b in sprintf (__fmt=<optimized out>, __s=<optimized out>) at /usr/include/bits/stdio2.h:33
#11 get_user_line (lbs=<optimized out>, lbs@entry=0x2833748, 
    user=user@entry=0x7fffc84d0780 "a2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.combasar", password=password@entry=0x0, full_name=full_name@entry=0x0, email=email@entry=0x0, email_notify=email_notify@entry=0x0, 
    last_logout=last_logout@entry=0x0, inactive=inactive@entry=0x0) at src/elogd.c:25739
#12 0x0000000000433d0a in save_user_config (lbs=lbs@entry=0x2833748, 
    user=0x7704fc <_value+1500> "a2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.coma2seferewd@fonomsdfef.com", new_user=new_user@entry=1) at src/elogd.c:13343
#13 0x0000000000456068 in do_self_register (lbs=0x2833748, command=0x7fffc84d2650 "Save") at src/elogd.c:26768
#14 0x000000000045c1f7 in interprete (lbook=lbook@entry=0x7fffc84f92f0 "Shift Reports", path=path@entry=0x7fffc84d4430 "") at src/elogd.c:27594
#15 0x000000000045ecc6 in decode_get (logbook=logbook@entry=0x7fffc84f92f0 "Shift Reports", string=<optimized out>) at src/elogd.c:28393
#16 0x0000000000460970 in process_http_request (request=<optimized out>, 
    request@entry=0x284bee8 "GET /Shift+Reports/?new_user_name=a2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.coma2seferewd%402sefddsfgfd.com&new_full_name=a2seferewd%40fanneat.com&new_user_email=a2seferewd%40fanneat.com&newpwd=asdf&newpwd2=asdf&cmd=Save", i_conn=i_conn@entry=1) at src/elogd.c:29201
#17 0x00000000004623d2 in server_loop () at src/elogd.c:30212
#18 0x0000000000404209 in main (argc=8, argv=0x7fffc84fb6c8) at src/elogd.c:3123

Dear Stefan, 

There is a problem with editing an Elog page in "plain" format with the following "User Agent" :

"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.1 Safari/605.1.15"

It duplicates the newline symbols such that "1<CRLF>2" becomes "1<CRLF><CRLF>2". If edited again - "1<CRLF><CRLF><CRLF><CRLF>2".

I blame the new version of the Apple WebKit. 

It works fine with Chrome (user agent: "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36"). But fails with Safari. 
 

Could you please have a look? 

Thank you in advance, 

Andrey Pashnin

AMS collaboration

I am still struggling to get ELOG running behind a load balancer and hope to get some advice here. As already reported in https://elog.psi.ch/elogs/Forum/69542 I observed an infinite loop of redirects when prompted to log in and using a non-empty password file. Without a password, the service worked as expected. This was with version 3.1.3.

With the new version 3.1.4-3, I get another error: "Invalid Content-Length in header" when I click on "submit" of a new post. Viewing the logbooks works fine. The instance is currently live and running here: https://elog.test.km3net.de but I might change it anytime due to debugging etc.

This is a kind of difficult thing to debug (I spent the whole day and no progress). The only thing I've found was this post: https://techcommunity.microsoft.com/t5/iis-support-blog/invalid-content-length/ba-p/3038724 where it seems that some responses are not RFC conform and were rejected in the load-balancer.

The load balancer I use is HAProxy, the same as in my old setup where I got the infinite redirects, and I can't find any setting which would work. To my understanding, the most basic setup should work just fine. The SSL termination is on the load-balancer side so ELOG doesn't even have to know anything about it. The configuration is below. I am running a single instance, so there is not even replication with session keep-alive via cookies or anything fancy.

I also want to mention that I am runnin around 30 different services behind the load balancer and none of them are having any issues with the SSL termination or the load-balancing itself, that's why assume that something in ELOG is either non-conform or buggy.

Any thoughts? I'd really like to use the same infrastructure for the ELOG service as for every other service (automatic certificate renewal via letsencrypt, load-balancing, easy movement to other nodes, SSL termination etc.), to minimise the complexity of our Docker Swarm system.

backend be_elog.km3net.de
    mode http
    server-template km3net-elog- 1 km3net-elog_elog:8080 check resolvers docker init-addr libc,none

Btw. I am running ELOG with -v but I don't see any error whatsoever in the logs:

km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | GET /demo/ HTTP/1.1
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Received unknown cookie "ios_specific_templates_id"
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Received unknown cookie "rl_anonymous_id"
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Received unknown cookie "rl_group_id"
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Received unknown cookie "rl_group_trait"
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Received unknown cookie "rl_trait"
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Received unknown cookie "rl_user_id"
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Received unknown cookie "logged_out_marketing_header_id"
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Returned 3437 bytes
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | GET / HTTP/1.1
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Returned 120 bytes
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | GET /demo/ HTTP/1.1
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Returned 3518 bytes
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | GET / HTTP/1.1
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Returned 120 bytes
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | GET /demo/ HTTP/1.1
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Returned 3518 bytes

I downloaded the last elog-3.1.5-1.tar.gz to install elog.

All *.cxx files are missing.