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Wed Jan 21 14:19:45 2009

Re: Stack error when email notification is active

Michael Ambrus wrote:

Stefan Ritt wrote:

Michael Ambrus wrote:

Stack error is caused when an entry is submitted in a e-mail notification enabled log when a new entry is submitted. This error does not happen on linux (same Elog version, same config file).

Please let me know if there is anything I can do to help.

-----------------------------2916890032591
Content-Disposition: form-data; name="attfile"; filename=""
Content-Type: application/octet-stream

-----------------------------2916890032591--

timezone: 0, offset: 0
6 [main] elogd 2816 _cygtls::handle_exceptions: Error while dumping state
(probably corrupted stack)
Segmentation fault (core dumped)

Cygwin is not officially supported. Can you try the Windows binaries?

Sorry, I didn't know there were any (I've not used Elog for years and I think Cygwin was the only way back then). Tried them now and they seem to work. At least no stack error is caused. I'm getting some other error, but I think it's the handshake with the SMTP. I'll validate it's OK until tomorrow.

Windows binaries also solved the issue with the "Top grop" in my other bug rapport.

Thanks for the help!

Unfortunately can't validate this right now. I'm at a remote network trying to get ELOG on my Windows laptop working with e-mail notifications. Either my normal ISP will not allow the SMTP to accept relaying from external networks, or something else is wrong.

The Windows binary is behaving somewhat differently, it seems to behave like earlier versions. I.e. the error message seen on the browser (Error sending Email via "smtp.xxx.xxx") is very limited. Logging (level 6) will not revile much and -v doesn't output any hints either. Assuming the first possible cause, I registered a account at gmail to try see if their SMTP would allow e-mail relaying. Trying with the Windows binary version I seemingly leads to the same result (i.e. I don't see much and the error seen at the browser is the same). However, when trying to run ELOG on a machine at my home network the message is different:

Error sending Email via "smtp.gmail.com": 5.7.0 Must issue a STARTTLS command first. w40sm7583927ugc.6

The message does not surprise me (from previous experience, TLS was what made made postfix complicated to set up too). But what does surprise me is that the messages differ between the two (ELOG V2.7.5 running on a Linux machine and the Windows binary of the same version). Does Linux/Windows versions differ by conditionals in the code or did I somehow get an older Windows binary?

It would also be helpful knowing if ayone has got ELOG working with smtp.gmail.com.

Regards /Michael

66163

Wed Jan 21 08:45:25 2009

Re: Elogd crashes with: *** stack smashing detected ***

Niklas wrote:

Create a list of elog cookies, and store only these as parameters. Examplef:

int process_http_request(const char *request, int i_conn)

{
...
const char *cookie_list[] = { "upwd", "unm", "elmode", "urem", "wpwd", "apwd", "uname", NULL };
...
...
...
         /* store cookie as parameter */
         for(i=0; cookie_list[i]; i++) {
            if(strcmp(cookie_list[i], str) == 0) {
               setparam(str, cookie);
               break;
            }
         }

...

I'm not sure if this works, since your test

i < (int) sizeof(cookie)

still will stop parsing cookies if there is one which is too long. So I added your test plus changed the parsing to:

for (i = 0; *p && *p != ';' && *p != '\r' && *p != '\n' ; )

if (i < (int) sizeof(cookie)-1)

cookie[i++] = *p++;

cookie[i] = 0;

The modification is in the curren SVN revision (# 2162). So have a look and check that it works.

66162

Tue Jan 20 17:18:06 2009

Re: SMTP problems - Error sending Email via "smtp.glocalnet.net"

Michael Ambrus wrote:

Apparently 'MAIL FROM' syntax used by my ISP expects the address to be within <>.

Adding those in the config file fixes the problem:

Use Email From = <user@domain>

Note that the documentation indicates that the brackets should not be there and I'm not sure if this is a bug or not yet. According to this link the brackets should be there but I think to be consistent with other e-mail related attributes in the config file, they should be added by ELOG.

The 'Email' attibute however seems to work fine without the brackests. I.e.

Email All = user@doman

is OK.

I'm not very familiar with SMTP but I was fiddling around with this some time ago setting up a postfix MT. I eventually succeeded with my ISP, but not with gmail's SMTP. Apperently there are differences with the log-in procedure.

I added some code to elogd which always places <> around the "MAIL FROM:" in the SMTP communication. So I hope that problem should be solved from now on. Thank you for your detailed analysis and your hints.

66161

Tue Jan 20 16:10:22 2009

Re: Top group causes: Internal error, no valid header!

Michael Ambrus wrote:

Having "Top group" in a config-file for Windows will cause:

GET / HTTP/1.1
Host: eudr6j03j:8084
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; sv-SE; rv:1.9.0.5) Gecko/20
08120122 Firefox/3.0.5
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: sv-se,sv;q=0.8,en-us;q=0.5,en;q=0.3
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Cookie: unm=mambrus; upwd=U2lzc2kx; urem=0
Cache-Control: max-age=0

Internal error, no valid header!

Removing "top group" makes elogd.exe work. The error is repeatable and the same config file works on the same version of Elog on Linux. Elog was compiled with Cygwin.

Windows binaries took care of this problem as with Message ID: 66157.

Problem solved, thanks!

66160

Tue Jan 20 16:07:03 2009

Re: Stack error when email notification is active

Stefan Ritt wrote:

Michael Ambrus wrote:

Stack error is caused when an entry is submitted in a e-mail notification enabled log when a new entry is submitted. This error does not happen on linux (same Elog version, same config file).

Please let me know if there is anything I can do to help.

Cygwin is not officially supported. Can you try the Windows binaries?

Windows binaries also solved the issue with the "Top grop" in my other bug rapport.

Thanks for the help!

66159

Tue Jan 20 15:37:19 2009

Re: Stack error when email notification is active

Michael Ambrus wrote:

Stack error is caused when an entry is submitted in a e-mail notification enabled log when a new entry is submitted. This error does not happen on linux (same Elog version, same config file).

Please let me know if there is anything I can do to help.

Cygwin is not officially supported. Can you try the Windows binaries?

66158

Tue Jan 20 15:26:03 2009

Re: Top group causes: Internal error, no valid header!

Stefan Ritt wrote:

Michael Ambrus wrote:

Having "Top group" in a config-file for Windows will cause:

Removing "top group" makes elogd.exe work. The error is repeatable and the same config file works on the same version of Elog on Linux. Elog was compiled with Cygwin.

Please supply your full configuration file for error analysis.

File attached. SMTP password removed, otherwise as original.

66157

Tue Jan 20 15:20:38 2009

Stack error when email notification is active

Stack error is caused when an entry is submitted in a e-mail notification enabled log when a new entry is submitted. This error does not happen on linux (same Elog version, same config file).

Please let me know if there is anything I can do to help.

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