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{{Languages|Koozali_SME_Server_Debugging}}
===Débogage du serveur===
Un problème souvent rencontré par les nouveaux développeurs est le débogage du code Perl sur votre serveur SME.
Il existe plusieurs façons de procéder, à la fois localement et à distance.
===Activer le débogage du modèle ===
Je suis tombé sur cela dans le fichier templates.pm
config set processtemplate Debug yes
Cela ajoutera quelques lignes de débogage à /var/log/messages vous montrant la progression de l'extension du modèle.
Pour désactiver, définissez la clé sur « no » ou supprimez-la.
===Routines de base de données intégrées ===
Vous pouvez également utiliser quelques routines de db.pm
=item B<db_print>
db_print(\%config);
db_print(\%config, $key);
Imprime les clés et leurs valeurs brutes dans la base de données %config. Si $key est
fourni, il imprime la $key et sa valeur brute. Si aucune $key n'est
fournie, il imprime toutes les clés et leurs valeurs brutes.
=item B<db_show>
db_show(\%config);
db_show(\%config, $key);
Imprime les clés et leurs valeurs dans un format lisible par l'homme.
Si $key est fourni, il imprime la $key, le type et les propriétés de cette
$key. Sinon, il imprime la clé, le type et les propriétés de toutes les
clés.
=item B<db_print_type>
db_print_type(\%config);
db_print_type(\%config, $key);
Imprime les clés et leurs types dans la base de données %config.
Si $key est fourni, il imprime uniquement cette $key et son type.
Sinon, il imprime toutes les clés et leurs types.
=item B<db_print_prop>
db_print_prop(\%config, $key);
db_print_prop(\%config, $key, $property);
Imprime les propriétés (ou une seule $property) de la $key donnée dans
le %config.
===En local, en utilisant perl -d===
Il existe un certain nombre de tutoriels en ligne.
Pour commencer, utilisez :
perl -d myFile.pl
Il existe ensuite un certain nombre d'options que vous pouvez utiliser pour contrôler le débogueur :
l 10 - list line 10
l get_pattern - find lines matching 'pattern'
b 22 - set breakpoint at line 22
s - step forward a line including all subroutines
n - step forward a line but jump through subroutines
c - continue to next break point
c 47 - continue to line 47
p $variable - print variable
q - quit
===Remote debugging using an IDE===
I have been using Komodo IDE courtesy of an Open Source Developers licence from [http://komodoide.com/ Activestate]
You can now get the app for free here but need a free account to use it:
https://www.activestate.com/products/komodo-ide/download-ide/
The simplest mode to use with Komodo IDE is to just use the IDE as a debugger to step through code. Code on the remote server can be edited if you have sufficient permissions.
https://docs.activestate.com/komodo/12/manual/debugger.html
This will enable us to work with one desktop and one server. See the section on debug proxy for multiple connections.
====Server setup====
From your installed Komodo directory we need to copy a set of files to the server.
I actually copied the entire dbgp directory as there are other files in there that are useful including the debug proxy.
scp -r ~/komdoeditDirectory/lib/support/dbgp root@some.server://opt/
We should now have /opt/dbgp on the server
We now need to set some paths on the server:
export PERL5LIB=/opt/dbgp/perllib:$PERL5LIB
export PERLDB_OPTS=RemotePort=your.desktop.i.p:9020 async=1
If required you can also add a user identifier:
export DBGP_IDEKEY=jdoe
Note: As with local debugging, the Break Now function is disabled by default. Setting async=1 breaks at the first line - see the docs for more information
====Single machine setup====
On your desktop we need to set up the Listener for Komodo.
Edit/Preferences/Debugger/Connection
Set a specific port to 9020 (match the port above)
Set a user name as above
Now we need to start a program on the server. The debug code will then call Komodo.
The following forms should work
perl -d myFile.pl
Add -d to the header of your file e.g.
#!/usr/bin/perl -w -d
Then do
perl myFile.pl
Add -d to /sbin/e-smith/signal-event
Then do
signal-event some-event
You should get a popup from Komodo stating that a remote application has requested a debugger session. When you click yes you will get a second box stating that a mapping could not be opened. If we are just going to use Komodo as a debugger then we can answer no and you are then in debug mode allowing you to step through the code and view variables.
====Mapping for editing====
Should you wish to actually edit code as well you will need to set up some form of file mapping between the URI that the debugger sends and your 'Server' setup in Komodo
Note that without some of the esmith libraries installed locally you will get some warnings about being unable to locate certain files but these can safely be ignored.
In Komodo preferences you need to setup a Server/Remote Account for the remote server. e.g.
Remote Account : Test_v10
Type: SCP
Port: 2222
Username: root
Pass: somepass (or alternatively use SSH keys)
You can then set up a mapping similar to this:
URI : file://v9-test/
Maps To : scp://Test_v9/
Or
URI : file://v9-test/etc/e-smith
Maps To : scp://Test_v9/etc/e-smith
You could be more specific about the directories should you require. Remember that you inherit the server permissions - you cannot save a file that is Read Only on the server !
====Local file mapping====
I seemed to have managed this using sshfs:
shfs -p 2222 root@192.168.10.199:/ ~/Mounts/somedirectory
You can then access the files normally and it is easy to map the remote to the 'local' files.
====Tidying up afterwards====
Either reboot the server or use the following:
export PERL5LIB=/usr/local/lib64/perl5:/usr/local/share/perl5:/usr/lib64/perl5/vendor_perl:/usr/share/perl5/vendor_perl
export PERLDB_OPTS=
export DBGP_IDEKEY=jdoe
==== Perl CGI Debugging====
[[Debugging CGI programs on live production servers can seriously impair performance. You have been warned !!]]
Please see here for further details:
http://docs.komodoide.com/Manual/debugperl#debugging-perl-komodo-ide-only_configuring-perl-for-cgi-debugging
You would need a custom httpd.conf fragment. I used 46PerlDebug with these options (configure to suit)
SetEnv PERL5LIB "/opt/dbgp/perllib:$PERL5LIB"
SetEnv PERLDB_OPTS "RemotePort=192.168.x.x async=1"
SetEnv DBGP_IDEKEY "user"
You should now be able access your cgi-script and debug accordingly.
However, having tried it you cannot use this on server-manager panels because perl is setuid.
It could be used in other scenarios, but not server-manager.
===Multiple machine debug proxy===
TBA
Notes are here:
http://docs.komodoide.com/Manual/debugger#debugging-programs-komodo-ide-only_remote-debugging_debugger-proxy
===Perl with Visual Studio===
{{Note box|To be refined}}
Still working on this but we need Perl Language Server
On your server:
yum --enablerepo=* install gcc gcc-c++ perl-App-cpanminus perl-AnyEvent-AIO perl-Coro
cpanm Class::Refresh
cpanm ExtUtils::CBuilder
cpanm Compiler::Lexer
cpanm Hash::SafeKeys
cpanm Perl::LanguageServer
On your workstation:
* Set up your remote servers using ssh keys in .ssh/config
* Install Visual Studio Code Remote Explorer
* Restart
* Go to Remote Explorer and you should see your server list
* Open in Current or New window
* Select the platform and let VS Code install itself
* Go to File explorer
* Open Folder
* It will suggests opening in /root/ but I find it easier to open in /
* Click OK and your folders will appear left
* Go to your file and open it
* Set a break point near the top
* Now go to Debug, Add a Configuration, and accept the defaults
* Now run the Debug and you should see the code stop at one of your break points
You can now step through your code.
===PHP remote debugging===
You can debug on your local workstation but it is extremely useful to be able to debug direct on the server environment.
You may have one PHP version installed on your desktop but be running a different one on the server, and you may have a different server setup.
First you need to install the xdebug packages eg:
{{Note box|Xdebug 3 is not available for PHP versions less than 7.2 You will need php54-php-pecl-xdebug}}
yum install php74-php-pecl-xdebug3
yum install php80-php-pecl-xdebug3
Or
yum install php*php-pecl-xdebug3
Next you need a small template fragment to enable remote debugging.
=====Xdebug 2=====
mkdir -p /etc/e-smith/templates-custom/etc/php.ini
nano /etc/e-smith/templates-custom/etc/php.ini/90XdebugSettings
Add this:
[Debugger]
; /etc/e-smith/templates-custom/etc/php.ini
xdebug.remote_enable = true
xdebug.remote_host = 127.0.0.1
xdebug.remote_port = 9001
xdebug.remote_handler = dbgp
xdebug.remote_log = /var/log/xdebug.log
xdebug.remote_mode = req
xdebug.max_nesting_level = 5000
=====Xdebug 3 =====
New syntax.
https://xdebug.org/docs/upgrade_guide
https://xdebug.org/docs/all_settings
nano /etc/e-smith/templates-custom/etc/php.ini/90XdebugSettings
[Debugger]
xdebug.start_with_request = yes
xdebug.discover_client_host = true
xdebug.client_host = localhost
xdebug.client_port = 9003
xdebug.idekey = users
xdebug.mode = debug
xdebug.log = /var/log/xdebug.log
Expand templates and restart services:
signal-event webapps-update
We should see Xdebug here
php74 -v
PHP 7.4.28 (cli) (built: Feb 15 2022 13:23:10) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
with Zend OPcache v7.4.28, Copyright (c), by Zend Technologies
with Xdebug v2.9.8, Copyright (c) 2002-2020, by Derick Rethans
Or like this:
php80 -v
PHP 8.0.19 (cli) (built: May 10 2022 08:07:35) ( NTS gcc x86_64 )
Copyright (c) The PHP Group
Zend Engine v4.0.19, Copyright (c) Zend Technologies
with Zend OPcache v8.0.19, Copyright (c), by Zend Technologies
with Xdebug v3.1.5, Copyright (c) 2002-2022, by Derick Rethans
====Komodo IDE====
We can obtain the debug proxy from the installation, and move it to the server and then execute from there:
python /root/dbgp/bin/pydbgpproxy -d 127.0.0.1:9001 -i 192.168.10.1:9003
Or alternatively grab the lastest xdebug client here:
mkdir /root/xdbg-proxy
cd /root/xdbg-proxy
curl https://xdebug.org/files/binaries/dbgpProxy -o dbgpProxy
chmod 0700 dbgpProxy
./dbgpProxy -s 127.0.0.1:9001 -i 192.168.10.1:9003
In Komodo Go to Preferences, Debugger, Connections
Komodo should listen on:
System provide port
Check 'I am running a debugger proxy'
Listener address: IP.of.your.server:9003
Proxy key: individual key name for this desktop
Save and check that it connected to the debugger.
Now to debug a file:
https://your.server.ip/index.php?XDEBUG_SESSION_START=mydesktopkey
Or
https://your.server.ip/index.php?somevalue=3&XDEBUG_SESSION_START=mydesktopkey
====Visual Studio/VS Codium ====
Sample launch.json
Note for newer versions of Xdebug the default port is now 9003
Pay careful attention to the path mapping,. This has to be absolutely correct or it will not work.
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name" : "vscphpdebug",
"type" : "php",
"request" : "launch",
"stopOnEntry" : false,
"proxy": {
"enable" : true,
"host" : "my.server.ip",
"key" : "users", // As set in the server above
"port": 9003,
"allowMultipleSessions" : true
},
"pathMappings": {
"/home/e-smith/files/ibays/testbay/html/phptestcode": "${workspaceFolder}"
},
},
]
}
Now you can run start the PHP debugger in Codium so it connects the to the debug server, and then trigger it with a URL like this:
https://my.SME.Server/testbay/phptestcode/myTestPhpFile.php?XDEBUG_SESSION_START=mycodiumkey
===Editors and IDEs===
Some Open Source Editors/IDEs
These all allow remote debugging.
Komodo-IDE https://www.activestate.com/products/komodo-ide
Komodo Debug tools: https://code.activestate.com/komodo/remotedebugging/
Eclipse https://www.eclipse.org/
Netbeans https://netbeans.org/
Codium https://itsfoss.com/vscodium/ - Use PHP Debug - felixfbecker.php-debug
<br>
For Codium I can't see a remote Perl debugger as yet.
----
[[Category:Howto]]
[[Category:Developer]]
[[Category:SME Server Development Framework]]
[[Category:Development Tools]]
===Débogage du serveur===
Un problème souvent rencontré par les nouveaux développeurs est le débogage du code Perl sur votre serveur SME.
Il existe plusieurs façons de procéder, à la fois localement et à distance.
===Activer le débogage du modèle ===
Je suis tombé sur cela dans le fichier templates.pm
config set processtemplate Debug yes
Cela ajoutera quelques lignes de débogage à /var/log/messages vous montrant la progression de l'extension du modèle.
Pour désactiver, définissez la clé sur « no » ou supprimez-la.
===Routines de base de données intégrées ===
Vous pouvez également utiliser quelques routines de db.pm
=item B<db_print>
db_print(\%config);
db_print(\%config, $key);
Imprime les clés et leurs valeurs brutes dans la base de données %config. Si $key est
fourni, il imprime la $key et sa valeur brute. Si aucune $key n'est
fournie, il imprime toutes les clés et leurs valeurs brutes.
=item B<db_show>
db_show(\%config);
db_show(\%config, $key);
Imprime les clés et leurs valeurs dans un format lisible par l'homme.
Si $key est fourni, il imprime la $key, le type et les propriétés de cette
$key. Sinon, il imprime la clé, le type et les propriétés de toutes les
clés.
=item B<db_print_type>
db_print_type(\%config);
db_print_type(\%config, $key);
Imprime les clés et leurs types dans la base de données %config.
Si $key est fourni, il imprime uniquement cette $key et son type.
Sinon, il imprime toutes les clés et leurs types.
=item B<db_print_prop>
db_print_prop(\%config, $key);
db_print_prop(\%config, $key, $property);
Imprime les propriétés (ou une seule $property) de la $key donnée dans
le %config.
===En local, en utilisant perl -d===
Il existe un certain nombre de tutoriels en ligne.
Pour commencer, utilisez :
perl -d myFile.pl
Il existe ensuite un certain nombre d'options que vous pouvez utiliser pour contrôler le débogueur :
l 10 - list line 10
l get_pattern - find lines matching 'pattern'
b 22 - set breakpoint at line 22
s - step forward a line including all subroutines
n - step forward a line but jump through subroutines
c - continue to next break point
c 47 - continue to line 47
p $variable - print variable
q - quit
===Remote debugging using an IDE===
I have been using Komodo IDE courtesy of an Open Source Developers licence from [http://komodoide.com/ Activestate]
You can now get the app for free here but need a free account to use it:
https://www.activestate.com/products/komodo-ide/download-ide/
The simplest mode to use with Komodo IDE is to just use the IDE as a debugger to step through code. Code on the remote server can be edited if you have sufficient permissions.
https://docs.activestate.com/komodo/12/manual/debugger.html
This will enable us to work with one desktop and one server. See the section on debug proxy for multiple connections.
====Server setup====
From your installed Komodo directory we need to copy a set of files to the server.
I actually copied the entire dbgp directory as there are other files in there that are useful including the debug proxy.
scp -r ~/komdoeditDirectory/lib/support/dbgp root@some.server://opt/
We should now have /opt/dbgp on the server
We now need to set some paths on the server:
export PERL5LIB=/opt/dbgp/perllib:$PERL5LIB
export PERLDB_OPTS=RemotePort=your.desktop.i.p:9020 async=1
If required you can also add a user identifier:
export DBGP_IDEKEY=jdoe
Note: As with local debugging, the Break Now function is disabled by default. Setting async=1 breaks at the first line - see the docs for more information
====Single machine setup====
On your desktop we need to set up the Listener for Komodo.
Edit/Preferences/Debugger/Connection
Set a specific port to 9020 (match the port above)
Set a user name as above
Now we need to start a program on the server. The debug code will then call Komodo.
The following forms should work
perl -d myFile.pl
Add -d to the header of your file e.g.
#!/usr/bin/perl -w -d
Then do
perl myFile.pl
Add -d to /sbin/e-smith/signal-event
Then do
signal-event some-event
You should get a popup from Komodo stating that a remote application has requested a debugger session. When you click yes you will get a second box stating that a mapping could not be opened. If we are just going to use Komodo as a debugger then we can answer no and you are then in debug mode allowing you to step through the code and view variables.
====Mapping for editing====
Should you wish to actually edit code as well you will need to set up some form of file mapping between the URI that the debugger sends and your 'Server' setup in Komodo
Note that without some of the esmith libraries installed locally you will get some warnings about being unable to locate certain files but these can safely be ignored.
In Komodo preferences you need to setup a Server/Remote Account for the remote server. e.g.
Remote Account : Test_v10
Type: SCP
Port: 2222
Username: root
Pass: somepass (or alternatively use SSH keys)
You can then set up a mapping similar to this:
URI : file://v9-test/
Maps To : scp://Test_v9/
Or
URI : file://v9-test/etc/e-smith
Maps To : scp://Test_v9/etc/e-smith
You could be more specific about the directories should you require. Remember that you inherit the server permissions - you cannot save a file that is Read Only on the server !
====Local file mapping====
I seemed to have managed this using sshfs:
shfs -p 2222 root@192.168.10.199:/ ~/Mounts/somedirectory
You can then access the files normally and it is easy to map the remote to the 'local' files.
====Tidying up afterwards====
Either reboot the server or use the following:
export PERL5LIB=/usr/local/lib64/perl5:/usr/local/share/perl5:/usr/lib64/perl5/vendor_perl:/usr/share/perl5/vendor_perl
export PERLDB_OPTS=
export DBGP_IDEKEY=jdoe
==== Perl CGI Debugging====
[[Debugging CGI programs on live production servers can seriously impair performance. You have been warned !!]]
Please see here for further details:
http://docs.komodoide.com/Manual/debugperl#debugging-perl-komodo-ide-only_configuring-perl-for-cgi-debugging
You would need a custom httpd.conf fragment. I used 46PerlDebug with these options (configure to suit)
SetEnv PERL5LIB "/opt/dbgp/perllib:$PERL5LIB"
SetEnv PERLDB_OPTS "RemotePort=192.168.x.x async=1"
SetEnv DBGP_IDEKEY "user"
You should now be able access your cgi-script and debug accordingly.
However, having tried it you cannot use this on server-manager panels because perl is setuid.
It could be used in other scenarios, but not server-manager.
===Multiple machine debug proxy===
TBA
Notes are here:
http://docs.komodoide.com/Manual/debugger#debugging-programs-komodo-ide-only_remote-debugging_debugger-proxy
===Perl with Visual Studio===
{{Note box|To be refined}}
Still working on this but we need Perl Language Server
On your server:
yum --enablerepo=* install gcc gcc-c++ perl-App-cpanminus perl-AnyEvent-AIO perl-Coro
cpanm Class::Refresh
cpanm ExtUtils::CBuilder
cpanm Compiler::Lexer
cpanm Hash::SafeKeys
cpanm Perl::LanguageServer
On your workstation:
* Set up your remote servers using ssh keys in .ssh/config
* Install Visual Studio Code Remote Explorer
* Restart
* Go to Remote Explorer and you should see your server list
* Open in Current or New window
* Select the platform and let VS Code install itself
* Go to File explorer
* Open Folder
* It will suggests opening in /root/ but I find it easier to open in /
* Click OK and your folders will appear left
* Go to your file and open it
* Set a break point near the top
* Now go to Debug, Add a Configuration, and accept the defaults
* Now run the Debug and you should see the code stop at one of your break points
You can now step through your code.
===PHP remote debugging===
You can debug on your local workstation but it is extremely useful to be able to debug direct on the server environment.
You may have one PHP version installed on your desktop but be running a different one on the server, and you may have a different server setup.
First you need to install the xdebug packages eg:
{{Note box|Xdebug 3 is not available for PHP versions less than 7.2 You will need php54-php-pecl-xdebug}}
yum install php74-php-pecl-xdebug3
yum install php80-php-pecl-xdebug3
Or
yum install php*php-pecl-xdebug3
Next you need a small template fragment to enable remote debugging.
=====Xdebug 2=====
mkdir -p /etc/e-smith/templates-custom/etc/php.ini
nano /etc/e-smith/templates-custom/etc/php.ini/90XdebugSettings
Add this:
[Debugger]
; /etc/e-smith/templates-custom/etc/php.ini
xdebug.remote_enable = true
xdebug.remote_host = 127.0.0.1
xdebug.remote_port = 9001
xdebug.remote_handler = dbgp
xdebug.remote_log = /var/log/xdebug.log
xdebug.remote_mode = req
xdebug.max_nesting_level = 5000
=====Xdebug 3 =====
New syntax.
https://xdebug.org/docs/upgrade_guide
https://xdebug.org/docs/all_settings
nano /etc/e-smith/templates-custom/etc/php.ini/90XdebugSettings
[Debugger]
xdebug.start_with_request = yes
xdebug.discover_client_host = true
xdebug.client_host = localhost
xdebug.client_port = 9003
xdebug.idekey = users
xdebug.mode = debug
xdebug.log = /var/log/xdebug.log
Expand templates and restart services:
signal-event webapps-update
We should see Xdebug here
php74 -v
PHP 7.4.28 (cli) (built: Feb 15 2022 13:23:10) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
with Zend OPcache v7.4.28, Copyright (c), by Zend Technologies
with Xdebug v2.9.8, Copyright (c) 2002-2020, by Derick Rethans
Or like this:
php80 -v
PHP 8.0.19 (cli) (built: May 10 2022 08:07:35) ( NTS gcc x86_64 )
Copyright (c) The PHP Group
Zend Engine v4.0.19, Copyright (c) Zend Technologies
with Zend OPcache v8.0.19, Copyright (c), by Zend Technologies
with Xdebug v3.1.5, Copyright (c) 2002-2022, by Derick Rethans
====Komodo IDE====
We can obtain the debug proxy from the installation, and move it to the server and then execute from there:
python /root/dbgp/bin/pydbgpproxy -d 127.0.0.1:9001 -i 192.168.10.1:9003
Or alternatively grab the lastest xdebug client here:
mkdir /root/xdbg-proxy
cd /root/xdbg-proxy
curl https://xdebug.org/files/binaries/dbgpProxy -o dbgpProxy
chmod 0700 dbgpProxy
./dbgpProxy -s 127.0.0.1:9001 -i 192.168.10.1:9003
In Komodo Go to Preferences, Debugger, Connections
Komodo should listen on:
System provide port
Check 'I am running a debugger proxy'
Listener address: IP.of.your.server:9003
Proxy key: individual key name for this desktop
Save and check that it connected to the debugger.
Now to debug a file:
https://your.server.ip/index.php?XDEBUG_SESSION_START=mydesktopkey
Or
https://your.server.ip/index.php?somevalue=3&XDEBUG_SESSION_START=mydesktopkey
====Visual Studio/VS Codium ====
Sample launch.json
Note for newer versions of Xdebug the default port is now 9003
Pay careful attention to the path mapping,. This has to be absolutely correct or it will not work.
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name" : "vscphpdebug",
"type" : "php",
"request" : "launch",
"stopOnEntry" : false,
"proxy": {
"enable" : true,
"host" : "my.server.ip",
"key" : "users", // As set in the server above
"port": 9003,
"allowMultipleSessions" : true
},
"pathMappings": {
"/home/e-smith/files/ibays/testbay/html/phptestcode": "${workspaceFolder}"
},
},
]
}
Now you can run start the PHP debugger in Codium so it connects the to the debug server, and then trigger it with a URL like this:
https://my.SME.Server/testbay/phptestcode/myTestPhpFile.php?XDEBUG_SESSION_START=mycodiumkey
===Editors and IDEs===
Some Open Source Editors/IDEs
These all allow remote debugging.
Komodo-IDE https://www.activestate.com/products/komodo-ide
Komodo Debug tools: https://code.activestate.com/komodo/remotedebugging/
Eclipse https://www.eclipse.org/
Netbeans https://netbeans.org/
Codium https://itsfoss.com/vscodium/ - Use PHP Debug - felixfbecker.php-debug
<br>
For Codium I can't see a remote Perl debugger as yet.
----
[[Category:Howto]]
[[Category:Developer]]
[[Category:SME Server Development Framework]]
[[Category:Development Tools]]
