jamdb-user

[jamdb-user] blank screen

[John P. <jp...@ya...>]

Hi,
i've just installed the latest jamdb.
I have created and loaded songs into the database.
I have created a user account.

The problem:
After logging in with my user account i get a blank
screen. What is the problem? I cant see any error
messages even though i have set the debug option to
yes.

I'm sure my m3upaths options are wrong in the config
file but i don't think that this is the problem.
i can't figure out how to set this option properly
anyway.

Thanks in advance.


		
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Re: [jamdb-user] blank screen

[Marc S. <ma...@sc...>]

* John Papapanos schrieb am 29.10.04 um 23:34 Uhr:
> Hi,
> i've just installed the latest jamdb.
> I have created and loaded songs into the database.
> I have created a user account.
> 
> The problem:
> After logging in with my user account i get a blank
> screen. What is the problem? I cant see any error
> messages even though i have set the debug option to
> yes.
> 
> I'm sure my m3upaths options are wrong in the config
> file but i don't think that this is the problem.
> i can't figure out how to set this option properly
> anyway.
> 
> Thanks in advance.
> 

could you provide a bit more information about which versions of
jamdb / apache / php /client-browser you are running?


-marc

Re: [jamdb-user] blank screen

[John P. <jp...@ya...>]

--- Marc Schiffbauer <ma...@sc...> wrote:

> * John Papapanos schrieb am 29.10.04 um 23:34 Uhr:
> > Hi,
> > i've just installed the latest jamdb.
> > I have created and loaded songs into the database.
> > I have created a user account.
> > 
> > The problem:
> > After logging in with my user account i get a
> blank
> > screen. What is the problem? I cant see any error
> > messages even though i have set the debug option
> to
> > yes.
> > 
> > I'm sure my m3upaths options are wrong in the
> config
> > file but i don't think that this is the problem.
> > i can't figure out how to set this option properly
> > anyway.
> > 
> > Thanks in advance.
> > 
> 
> could you provide a bit more information about which
> versions of
> jamdb / apache / php /client-browser you are
> running?
> 
> 
> -marc
> 
> 

Thanks for your feedback,
I'using the following packages:

-apache: httpd -v
Server version: Apache/1.3.32 (Unix)

-php: php -v
PHP 5.0.2 (cli) (built: Oct 29 2004 17:41:44)
Copyright (c) 1997-2004 The PHP Group
Zend Engine v2.0.2, Copyright (c) 1998-2004 Zend
Technologies

-mozilla: mozilla -v
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.9)
Gecko/20020408, build 2002040813

-jamdb: jamdb-0.9.7

Looking forward to your reply. Thanks.

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Re: [jamdb-user] blank screen

[Marc S. <ma...@sc...>]

* John Papapanos schrieb am 30.10.04 um 13:36 Uhr:
> 
> Thanks for your feedback,
> I'using the following packages:
> 
> -apache: httpd -v
> Server version: Apache/1.3.32 (Unix)

should be ok.

> 
> -php: php -v
> PHP 5.0.2 (cli) (built: Oct 29 2004 17:41:44)
> Copyright (c) 1997-2004 The PHP Group
> Zend Engine v2.0.2, Copyright (c) 1998-2004 Zend
> Technologies

hm I never tested jamdb with PHP5. Are there any error messages in
apache's error log?

since you already enabled DEBUG_MODE error_reporting() should
already be set to E_ALL. Could please verify that it really is set
to this value? maybe there changed something in PHP5?

If the screen is blank after login: what does the page source lock
like?

Is the htpasswd file you use readable by PHP? Try make it
worldreadable for testing...

> 
> -mozilla: mozilla -v
> Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.9)
> Gecko/20020408, build 2002040813
> 

ok

> -jamdb: jamdb-0.9.7

ok, but may also try the current cvs version. We will hopefully
release it soon. There are some changes in the command line tool
pending...

configuration will be easier in the next version..

-marc

PS: are you on the list? do I need to CC you?
-- 
**********************************************************************
*   Unix is like a wigwam: no gates, no windows, only apache inside  *
**********************************************************************

Re: [jamdb-user] blank screen

[John P. <jp...@ya...>]

--- Marc Schiffbauer <ma...@sc...> wrote:

> Server version: Apache/1.3.32 (Unix)
> should be ok.
> 
> hm I never tested jamdb with PHP5. Are there any
> error messages in
> apache's error log?

Nop, nothing in the apache's error log.
 
> since you already enabled DEBUG_MODE
> error_reporting() should
> already be set to E_ALL. Could please verify that it
> really is set
> to this value? maybe there changed something in
> PHP5?

Sorry but i'm new to php. I can understand most of
your code due
to my experience in C.
If i get this right you need me to tell you about my
php.ini configuration.
Well this is how error handling is set in my php.ini
file:

error_reporting = E_ALL & ~E_NOTICE & ~E_STRICT
display_errors = On -> I guess this should display the
errors in the screen
log_errors = On
error_log=filename ->This is commented out.So it has
no affect.

As i can get it until now i should only see errors in
the output of the
index.php page of jamdb.

NOTE:Is there a way to set log_error and error_log
directives to log php errors into 
the apache error log file. so i can see when an error
is happening and
what request caused it? I know this is a question for
another mailling list :)


> If the screen is blank after login: what does the
> page source lock
> like?

Well this is interesting. 

A.When I use mozilla to log in if the login is
successfull
i get a blank screen and the source code is exactly
the same as the login's page
source code.
If at this point reenter the url in the same browser
window i see the blank
page again and the source code is just this:
<html><body></body></html>

B.When i use netscape to login if the login is
successfull i i don't see a blank
screen, instead an error windiw pops up from netscape
saying the following:
|-Netscape Error
|-The document contains no data
|-Try Again later or contact the system administrator.


The same error window appears if i try to view the
source code from Netscape.
If i try to see page info from Netscape i get the
following:

JamDB - V0.9.7 has the following structure:

http://localhost/jamdb/htdocs/index.php
Form 1:
       Action URL:
http://localhost/jamdb/htdocs/index.php
       Encoding: application/x-www-form-urlencoded
(default)
       Method: Post
 Layer: overDiv
     
        Location:
http://localhost/jamdb/htdocs/index.php 
  File MIME Type: Currently Unknown 
          Source: Not cached
Local cache file: none
   Last Modified: Unknown
   Last Modified: Unknown
  Content Length: Unknown
         Expires: No date given
         Charset: Unknown
        Security: Status unknown

??? It seems to me something is going on with the
execution of the javascript.
Could there be something missing in the apache or
browser configuration that
makes this javascript not funtioning properly???
 
> Is the htpasswd file you use readable by PHP? Try
> make it
> worldreadable for testing...

Yes, this file is world readable. The Login procces is
working just fine.
If i give wrong username or password i am propmt to
try again.The blank screen
appears only after a successful log in. 

 
> PS: are you on the list? do I need to CC you?

Nop i'not subsribed in the list. I send this mails to
the users list to though.
I've also openned a thread in the Help forum. No
replies to this from anyone though :(


		
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Re: [jamdb-user] blank screen

[<dan...@gm...>]

Hi John,

John Papapanos schrieb:

>--- Marc Schiffbauer <ma...@sc...> wrote:
>
>  
>
>>Server version: Apache/1.3.32 (Unix)
>>should be ok.
>>
>>hm I never tested jamdb with PHP5. Are there any
>>error messages in
>>apache's error log?
>>    
>>
>
>Nop, nothing in the apache's error log.
> 
>  
>
>>since you already enabled DEBUG_MODE
>>error_reporting() should
>>already be set to E_ALL. Could please verify that it
>>really is set
>>to this value? maybe there changed something in
>>PHP5?
>>    
>>
>
>Sorry but i'm new to php. I can understand most of
>your code due
>to my experience in C.
>If i get this right you need me to tell you about my
>php.ini configuration.
>Well this is how error handling is set in my php.ini
>file:
>
>error_reporting = E_ALL & ~E_NOTICE & ~E_STRICT
>display_errors = On -> I guess this should display the
>errors in the screen
>log_errors = On
>error_log=filename ->This is commented out.So it has
>no affect.
>
>As i can get it until now i should only see errors in
>the output of the
>index.php page of jamdb.
>
>NOTE:Is there a way to set log_error and error_log
>directives to log php errors into 
>the apache error log file. so i can see when an error
>is happening and
>what request caused it? I know this is a question for
>another mailling list :)
>
>
>  
>
>>If the screen is blank after login: what does the
>>page source lock
>>like?
>>    
>>
>
>Well this is interesting. 
>
>A.When I use mozilla to log in if the login is
>successfull
>i get a blank screen and the source code is exactly
>the same as the login's page
>source code.
>If at this point reenter the url in the same browser
>window i see the blank
>page again and the source code is just this:
><html><body></body></html>
>  
>
Sounds like the PHP-Parser crashs.
Can you make a tail while you try to login?
I don't now which Linux you use but on Fedora the commando looks like this:

tail -f /var/log/httpd/error_log

>B.When i use netscape to login if the login is
>successfull i i don't see a blank
>screen, instead an error windiw pops up from netscape
>saying the following:
>|-Netscape Error
>|-The document contains no data
>|-Try Again later or contact the system administrator.
>
>
>The same error window appears if i try to view the
>source code from Netscape.
>If i try to see page info from Netscape i get the
>following:
>
>JamDB - V0.9.7 has the following structure:
>
>http://localhost/jamdb/htdocs/index.php
>Form 1:
>       Action URL:
>http://localhost/jamdb/htdocs/index.php
>       Encoding: application/x-www-form-urlencoded
>(default)
>       Method: Post
> Layer: overDiv
>     
>        Location:
>http://localhost/jamdb/htdocs/index.php 
>  File MIME Type: Currently Unknown 
>          Source: Not cached
>Local cache file: none
>   Last Modified: Unknown
>   Last Modified: Unknown
>  Content Length: Unknown
>         Expires: No date given
>         Charset: Unknown
>        Security: Status unknown
>
>??? It seems to me something is going on with the
>execution of the javascript.
>Could there be something missing in the apache or
>browser configuration that
>makes this javascript not funtioning properly???
> 
>  
>
>>Is the htpasswd file you use readable by PHP? Try
>>make it
>>worldreadable for testing...
>>    
>>
>
>Yes, this file is world readable. The Login procces is
>working just fine.
>If i give wrong username or password i am propmt to
>try again.The blank screen
>appears only after a successful log in. 
>
> 
>  
>
>>PS: are you on the list? do I need to CC you?
>>    
>>
>
>Nop i'not subsribed in the list. I send this mails to
>the users list to though.
>I've also openned a thread in the Help forum. No
>replies to this from anyone though :(
>
Daniel

Re: [jamdb-user] blank screen

[John P. <jp...@ya...>]

--- Daniel Kröhl <dan...@gm...> wrote:

>>A.When I use mozilla to log in if the login is
>>successfull
>>i get a blank screen and the source code is exactly
>>the same as the login's page
>>source code.
> >If at this point reenter the url in the same
> browser
> >window i see the blank
> >page again and the source code is just this:
> ><html><body></body></html>
> >  
> >
> Sounds like the PHP-Parser crashs.
> Can you make a tail while you try to login?
> I don't now which Linux you use but on Fedora the
> commando looks like this:
> 
> tail -f /var/log/httpd/error_log
> 

Thanks for your reply Daniel,
The think is that nothing new is logged in apache's
error log. The tail command didn't output anything new.


		
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Re: [jamdb-user] blank screen

[Marc S. <ma...@sc...>]

* John Papapanos schrieb am 31.10.04 um 12:55 Uhr:
> 
> --- Marc Schiffbauer <ma...@sc...> wrote:
> 
> Nop, nothing in the apache's error log.
>  
> > since you already enabled DEBUG_MODE
> > error_reporting() should
> > already be set to E_ALL. Could please verify that it
> > really is set
> > to this value? maybe there changed something in
> > PHP5?
> 
> Sorry but i'm new to php. I can understand most of
> your code due
> to my experience in C.
> If i get this right you need me to tell you about my
> php.ini configuration.
> Well this is how error handling is set in my php.ini
> file:
> 
> error_reporting = E_ALL & ~E_NOTICE & ~E_STRICT
> display_errors = On -> I guess this should display the
> errors in the screen
> log_errors = On
> error_log=filename ->This is commented out.So it has
> no affect.

There is also a function called error_reporting(). You can use that
in the code to set the desired level of error reporting. The
DEBUG_MODE in JamDB sets this to E_ALL which should display any
warnung and any error on your screen so this is a bit strange.
Assume that the error happens before this is set in the code

You might try the following:

edit index.php and add a line before the 
"session_start();"

like this:

error_reporting(E_ALL);

and try again to login.


> 
> As i can get it until now i should only see errors in
> the output of the
> index.php page of jamdb.
> 
> NOTE:Is there a way to set log_error and error_log
> directives to log php errors into 
> the apache error log file. so i can see when an error
> is happening and
> what request caused it? I know this is a question for
> another mailling list :)
> 
> 
> > If the screen is blank after login: what does the
> > page source lock
> > like?
> 
> Well this is interesting. 
> 
> A.When I use mozilla to log in if the login is
> successfull
> i get a blank screen and the source code is exactly
> the same as the login's page
> source code.
> If at this point reenter the url in the same browser
> window i see the blank
> page again and the source code is just this:
> <html><body></body></html>
> 
> B.When i use netscape to login if the login is
> successfull i i don't see a blank
> screen, instead an error windiw pops up from netscape
> saying the following:
> |-Netscape Error
> |-The document contains no data
> |-Try Again later or contact the system administrator.
> 
> 
> The same error window appears if i try to view the
> source code from Netscape.
> If i try to see page info from Netscape i get the
> following:
> 
> JamDB - V0.9.7 has the following structure:
> 
> http://localhost/jamdb/htdocs/index.php
> Form 1:
>        Action URL:
> http://localhost/jamdb/htdocs/index.php
>        Encoding: application/x-www-form-urlencoded
> (default)
>        Method: Post
>  Layer: overDiv
>      
>         Location:
> http://localhost/jamdb/htdocs/index.php 
>   File MIME Type: Currently Unknown 
>           Source: Not cached
> Local cache file: none
>    Last Modified: Unknown
>    Last Modified: Unknown
>   Content Length: Unknown
>          Expires: No date given
>          Charset: Unknown
>         Security: Status unknown
> 
> ??? It seems to me something is going on with the
> execution of the javascript.
> Could there be something missing in the apache or
> browser configuration that
> makes this javascript not funtioning properly???

js is not needed for JamDB to function properly.

>  
> > Is the htpasswd file you use readable by PHP? Try
> > make it
> > worldreadable for testing...
> 
> Yes, this file is world readable. The Login procces is
> working just fine.
> If i give wrong username or password i am propmt to
> try again.The blank screen
> appears only after a successful log in. 
> 
>  
> > PS: are you on the list? do I need to CC you?
> 
> Nop i'not subsribed in the list. I send this mails to
> the users list to though.
> I've also openned a thread in the Help forum. No
> replies to this from anyone though :(

Please subscribe!

-Marc

-- 
+------------------------------------------------------------------+
|              --> http://www.links2linux.de <--                   |
|                                                                  |
+---Registered-Linux-User-#136487------------http://counter.li.org +

Re: [jamdb-user] blank screen

[John P. <jp...@ya...>]

--- Marc Schiffbauer <ma...@sc...> wrote:

> > 
> > error_reporting = E_ALL & ~E_NOTICE & ~E_STRICT
> > display_errors = On -> I guess this should display
> the
> > errors in the screen
> > log_errors = On
> > error_log=filename ->This is commented out.So it
> has
> > no affect.
> 
> There is also a function called error_reporting().
> You can use that
> in the code to set the desired level of error
> reporting. The
> DEBUG_MODE in JamDB sets this to E_ALL which should
> display any
> warnung and any error on your screen so this is a
> bit strange.
> Assume that the error happens before this is set in
> the code
> 
> You might try the following:
> 
> edit index.php and add a line before the 
> "session_start();"
> 
> like this:
> 
> error_reporting(E_ALL);
> 
> and try again to login.
> 
Alright, this turned out to be a quite helpful tip.
I inserted error_reporting(E_ALL) before
session_start() in index.php and when i opened the
login page i got the follwing error:
Notice: Use of undefined constant DBTYPE - assumed
'DBTYPE' in
usr/local/apache/htdocs/jamdb/etc/jamdb.conf on line
94

So i edited the jamdb.conf file and in line 94 i
changed the define(DBTYPE,"mysql"); to
define("DBTYPE","mysql"); 
And it worked. Meaning that i opened the login page
again and the Notice message didn't show up.

Unfortunately as soon as i entered my credentials
username and passwd in the login form and hit the
login button the result was the same as before. The
same old BLANK SCREEN.

What else could be done?

> Please subscribe!
> 
> -Marc

Already done.

Thanks for your help.


		
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Re: [jamdb-user] blank screen

[Marc S. <ma...@sc...>]

* John Papapanos schrieb am 31.10.04 um 19:20 Uhr:
> 
> --- Marc Schiffbauer <ma...@sc...> wrote:
> 
> > > 
> > > error_reporting = E_ALL & ~E_NOTICE & ~E_STRICT
> > > display_errors = On -> I guess this should display
> > the
> > > errors in the screen
> > > log_errors = On
> > > error_log=filename ->This is commented out.So it
> > has
> > > no affect.
> > 
> > There is also a function called error_reporting().
> > You can use that
> > in the code to set the desired level of error
> > reporting. The
> > DEBUG_MODE in JamDB sets this to E_ALL which should
> > display any
> > warnung and any error on your screen so this is a
> > bit strange.
> > Assume that the error happens before this is set in
> > the code
> > 
> > You might try the following:
> > 
> > edit index.php and add a line before the 
> > "session_start();"
> > 
> > like this:
> > 
> > error_reporting(E_ALL);
> > 
> > and try again to login.
> > 
> Alright, this turned out to be a quite helpful tip.
> I inserted error_reporting(E_ALL) before
> session_start() in index.php and when i opened the
> login page i got the follwing error:
> Notice: Use of undefined constant DBTYPE - assumed
> 'DBTYPE' in
> usr/local/apache/htdocs/jamdb/etc/jamdb.conf on line
> 94
> 
> So i edited the jamdb.conf file and in line 94 i
> changed the define(DBTYPE,"mysql"); to
> define("DBTYPE","mysql"); 
> And it worked. Meaning that i opened the login page
> again and the Notice message didn't show up.

OK, but thats only a notice.. not a warning or an error.


> 
> Unfortunately as soon as i entered my credentials
> username and passwd in the login form and hit the
> login button the result was the same as before. The
> same old BLANK SCREEN.

strange.

> 
> What else could be done?

Do you have cookies enabled? If yes try to disable them or vice
versa. The URL should then change (Session data will be added or
removed...)

Maybe you could try the cvs version?

-Marc
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     features.  If you discover such a feature and you want it to
     be removed: please send an email to bug at links2linux.de 

Re: [jamdb-user] blank screen

[Ralf P. <ral...@rp...>]

John Papapanos schrieb:
> Hi,
> i've just installed the latest jamdb.
> I have created and loaded songs into the database.
> I have created a user account.
> 
> The problem:
> After logging in with my user account i get a blank
> screen. What is the problem? I cant see any error
> messages even though i have set the debug option to
> yes.

Same problem here.
Did you find a solution?

Ralf