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ERROR > Session has expired !

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14 years 11 months ago #68686 by user22685_d
ERROR > Session has expired ! was created by user22685_d
Hi Guys,

I have just migrated limesurvey from one server to another. Same configuration for both servers but a big issue with my survey.

When executing the survey after passing 2 groups of question I get a wonderful :

ERROR

We are sorry but your session has expired.

Either you have been inactive for too long, you have cookies disabled for your browser, or there were problems with your connection.

Please contact Geengo Surveys ( foo@bar.com ) for further assistance.


So that's when the survey is activated. Now when I test the survey while not activated, I pass through 4 of the 5 groups of questions, and when clicking on the "Next" button of the 4th group... I get redirected to the surveys listing (the public index of surveys) while I should go to the last group of questions. Weird, isn't it ?

I spent a couple of hours searching the web and the forum for solutions (I found some bugs that looked quite similar but the proposed solutions would never work), checked several times my php.ini, upgraded to the very last built of limesurvey (Version 1.91+ Build 11343) but it simply won't work ! And I really have no clue why...

Any idea that could help me ?

Thanks in advance,

Kind regards,
Maximilien
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14 years 11 months ago #68891 by Mazi
Replied by Mazi on topic ERROR > Session has expired !
I'm pretty sure that there are differences at the server configuration because the session problems are mainly caused by certain server settings.

Please upload a phpinfo file so we can take a look at your server configuration. Just put the following code into a file named phpinfo.php and upload it to your webserver:
Code:
< ?php phpinfo(); ? >
(Delete the spaces next to </> when copying the code.)
After uploading please post the link to the file.
Best regards/Beste Grüße,
Dr. Marcel Minke
survey-consulting.com
offlinesurveys.com
Feel free to contact me by email for professional LimeSurvey support!
The following user(s) said Thank You: user22685_d
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14 years 11 months ago #68982 by user22685_d
Replied by user22685_d on topic ERROR > Session has expired !
Here is a link to the phpinfo.
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14 years 11 months ago - 14 years 11 months ago #68986 by DenisChenu
Replied by DenisChenu on topic ERROR > Session has expired !
Hello,

You have suhosin, starting to test without ( suhosin.simulation ) to see if it that.

Here is may suhosin configuration:
Code:
suhosin.apc_bug_workaround Off Off suhosin.cookie.checkraddr 0 0 suhosin.cookie.cryptdocroot On On suhosin.cookie.cryptkey [ protected ] [ protected ] suhosin.cookie.cryptlist no value no value suhosin.cookie.cryptraddr 0 0 suhosin.cookie.cryptua On On suhosin.cookie.disallow_nul 1 1 suhosin.cookie.disallow_ws 1 1 suhosin.cookie.encrypt Off Off suhosin.cookie.max_array_depth 50 50 suhosin.cookie.max_array_index_length 64 64 suhosin.cookie.max_name_length 64 64 suhosin.cookie.max_totalname_length 256 256 suhosin.cookie.max_value_length 10000 10000 suhosin.cookie.max_vars 100 100 suhosin.cookie.plainlist no value no value suhosin.coredump Off Off suhosin.disable.display_errors Off Off suhosin.executor.allow_symlink Off Off suhosin.executor.disable_emodifier Off Off suhosin.executor.disable_eval Off Off suhosin.executor.eval.blacklist no value no value suhosin.executor.eval.whitelist no value no value suhosin.executor.func.blacklist no value no value suhosin.executor.func.whitelist no value no value suhosin.executor.include.allow_writable_files On On suhosin.executor.include.blacklist no value no value suhosin.executor.include.max_traversal 4 4 suhosin.executor.include.whitelist no value no value suhosin.executor.max_depth 0 0 suhosin.filter.action no value no value suhosin.get.disallow_nul 1 1 suhosin.get.disallow_ws 0 0 suhosin.get.max_array_depth 50 50 suhosin.get.max_array_index_length 64 64 suhosin.get.max_name_length 64 64 suhosin.get.max_totalname_length 256 256 suhosin.get.max_value_length 512 512 suhosin.get.max_vars 100 100 suhosin.log.file 0 0 suhosin.log.file.name no value no value suhosin.log.phpscript 0 0 suhosin.log.phpscript.is_safe Off Off suhosin.log.phpscript.name no value no value suhosin.log.sapi 0 0 suhosin.log.script 0 0 suhosin.log.script.name no value no value suhosin.log.syslog 479 479 suhosin.log.syslog.facility no value no value suhosin.log.syslog.priority no value no value suhosin.log.use-x-forwarded-for Off Off suhosin.mail.protect 2 2 suhosin.memory_limit 256M 256M suhosin.mt_srand.ignore On On suhosin.multiheader Off Off suhosin.perdir 0 0 suhosin.post.disallow_nul 1 1 suhosin.post.disallow_ws 0 0 suhosin.post.max_array_depth 8048 8048 suhosin.post.max_array_index_length 1024 1024 suhosin.post.max_name_length 2048 2048 suhosin.post.max_totalname_length 8048 8048 suhosin.post.max_value_length 1000000 1000000 suhosin.post.max_vars 4096 4096 suhosin.protectkey On On suhosin.request.disallow_nul 1 1 suhosin.request.disallow_ws 0 0 suhosin.request.max_array_depth 4096 4096 suhosin.request.max_array_index_length 2048 2048 suhosin.request.max_totalname_length 256 256 suhosin.request.max_value_length 650000 650000 suhosin.request.max_varname_length 64 64 suhosin.request.max_vars 4096 4096 suhosin.server.encode On On suhosin.server.strip On On suhosin.session.checkraddr 0 0 suhosin.session.cryptdocroot On On suhosin.session.cryptkey [ protected ] [ protected ] suhosin.session.cryptraddr 0 0 suhosin.session.cryptua Off Off suhosin.session.encrypt On On suhosin.session.max_id_length 128 128 suhosin.simulation Off Off suhosin.sql.bailout_on_error Off Off suhosin.sql.comment 0 0 suhosin.sql.multiselect 0 0 suhosin.sql.opencomment 0 0 suhosin.sql.union 0 0 suhosin.sql.user_postfix no value no value suhosin.sql.user_prefix no value no value suhosin.srand.ignore On On suhosin.stealth On On suhosin.upload.disallow_binary 0 0 suhosin.upload.disallow_elf 1 1 suhosin.upload.max_uploads 30 30 suhosin.upload.remove_binary 0 0 suhosin.upload.verification_script no value no value
Assistance on LimeSurvey forum and LimeSurvey core development are on my free time.
I'm not a LimeSurvey GmbH member. - Professional support - Plugins, theme and development .
I don't answer to private message.
Last edit: 14 years 11 months ago by DenisChenu. Reason: quote to code
The following user(s) said Thank You: user22685_d
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14 years 11 months ago - 14 years 11 months ago #69012 by user22685_d
Replied by user22685_d on topic [SOLVED] Re: ERROR > Session has expired ! - Suhosin configuration
A damn good answer !

So I set up the simulation mode on suhosin, activated the logs via the /etc/php5/apache2/conf.d/suhosin.ini file :
Code:
suhosin.log.sapi = 511 suhosin.simulation = off

(of course you need to reload apache2 for the configuration to be taken into account)

I did the survey, it worked and I checked my syslog. It had several errors on the max number of post variables (ALERT-SIMULATION - configured POST variable limit exceeded). So I took a configuration suitable for Magento's product :
Code:
suhosin.mail.protect = 0 suhosin.memory_limit = 128 suhosin.post.max_value_length = 5000000 suhosin.post.max_vars = 5000 suhosin.request.max_value_length = 5000000 suhosin.request.max_vars = 5000

Which basically means that it allows 5 times more post variables and requests. I switched off the simulation mode and it's clean and working !

Thank you so much Shnoulle.
Last edit: 14 years 11 months ago by user22685_d. Reason: Changing subject of the post (Solved)
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14 years 11 months ago #69014 by Mazi
Replied by Mazi on topic ERROR > Session has expired !
suhosin is known for causing such problems. Try switching it off for testing or adjust those settings according th shnoulle's examples.
Best regards/Beste Grüße,
Dr. Marcel Minke
survey-consulting.com
offlinesurveys.com
Feel free to contact me by email for professional LimeSurvey support!
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14 years 11 months ago - 14 years 11 months ago #69021 by DenisChenu
Replied by DenisChenu on topic [SOLVED] Re: ERROR > Session has expired ! - Suhosin configuration

Maximilien wrote: Thank you so much Shnoulle.

Thank's to you,

I have already some problem with max post and get, i use a cms ( Spip ) with a lot of ajax function.

And Ajax function need a lot of GET parameters.

I have 2 configuration for suhosin : one for protected project like LS/Spip etc ... and another one for no preotected projetc ( personal draft, old open source project etc ...)

I think we found the solution for suhosin with LimeSurvey:
Code:
suhosin.post.max_value_length = 5000000 suhosin.post.max_vars = 5000 suhosin.request.max_value_length = 5000000 suhosin.request.max_vars = 5000
But maybe less is good too :).

Denis

PS: wikified : docs.limesurvey.org/Installation+FAQ#Lim...on_has_expired_quot_ before Mazi asking :P
Assistance on LimeSurvey forum and LimeSurvey core development are on my free time.
I'm not a LimeSurvey GmbH member. - Professional support - Plugins, theme and development .
I don't answer to private message.
Last edit: 14 years 11 months ago by DenisChenu.
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14 years 11 months ago #69026 by user22685_d
Replied by user22685_d on topic [SOLVED] Re: ERROR > Session has expired ! - Suhosin configuration
Yep, it looks good with those values, the correct value must be somewhere between 1 and 5 but I think 5 (5000 and 5000000) is still protective and keeps Limesurvey working fine...

I will stay on 5 for the moment :p
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14 years 11 months ago #69037 by Mazi
Replied by Mazi on topic [SOLVED] Re: ERROR > Session has expired ! - Suhosin configuration
Guys, can you please add these helpful instructions at the installation FAQ so other will benefit from your findings as well!?

Thanks!
Best regards/Beste Grüße,
Dr. Marcel Minke
survey-consulting.com
offlinesurveys.com
Feel free to contact me by email for professional LimeSurvey support!
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14 years 11 months ago #69040 by user22685_d
Replied by user22685_d on topic [SOLVED] Re: ERROR > Session has expired ! - Suhosin configuration
There was already something, but I completed to that anyone should understand and search robots should index it so that's it's easier to find.
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14 years 11 months ago #69044 by DenisChenu
Replied by DenisChenu on topic [SOLVED] Re: ERROR > Session has expired ! - Suhosin configuration

Mazi wrote: Guys, can you please add these helpful instructions at the <a href=' www.docs.limesurvey.org/tiki-index.php?p...tions+for+LimeSurvey '>installation FAQ so other will benefit from your findings as well!?

Thanks!

Shnoulle wrote: PS: wikified : docs.limesurvey.org/Installation+FAQ#Lim...on_has_expired_quot_ before Mazi asking :P

:P
Assistance on LimeSurvey forum and LimeSurvey core development are on my free time.
I'm not a LimeSurvey GmbH member. - Professional support - Plugins, theme and development .
I don't answer to private message.
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14 years 11 months ago #69047 by user22685_d
Replied by user22685_d on topic [SOLVED] Re: ERROR > Session has expired ! - Suhosin configuration
Wow, that was fast ! And it explains why I didn't see anything before my initial question and discovered that when Mazi told about explaining it in the FAQ :)

Well done Shnoulle ;-)
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14 years 11 months ago #69049 by DenisChenu
Replied by DenisChenu on topic [SOLVED] Re: ERROR > Session has expired ! - Suhosin configuration

Maximilien wrote: Wow, that was fast ! And it explains why I didn't see anything before my initial question and discovered that when Mazi told about explaining it in the FAQ :)

Well done Shnoulle ;-)

Thanks to you, you corrected before Mazi ask too !!

:)
Assistance on LimeSurvey forum and LimeSurvey core development are on my free time.
I'm not a LimeSurvey GmbH member. - Professional support - Plugins, theme and development .
I don't answer to private message.
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14 years 5 months ago #78839 by user26020_d
Replied by user26020_d on topic ERROR > Session has expired !
Hi all! I am also experiencing this same problem. I am not running Suhosin. I've searched the phpinfo() output for the word, and it's not there. Are there any other known solutions for this? Any other server settings I could try? If absolutely necessary, I can post the phpinfo(), but I'd rather not as I am very wary of posting server settings to a public forum :)
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14 years 5 months ago #78840 by holch
Replied by holch on topic ERROR > Session has expired !
As long as no one knows which server it is for, I don't see much of a problem.
Help us to help you!
  • Provide your LS version and where it is installed (own server, uni/employer, SaaS hosting, etc.).
  • Always provide a LSS file (not LSQ or LSG).
Note: I answer at this forum in my spare time, I'm not a LimeSurvey GmbH employee.
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