system() blocked in my ISP

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Author	Message
Piotr Switkowski	Tuesday 15 January 2008 3:04:49 am The hosting company informed me, that for security reasons they blocked access to system(). Insted, they adviced me to use shell_exec. system() is used to call imageMagick and it seems to me, that would need to modify ezPublish code. Could someone advice a better solution. Could anyone tell me if system($command, $result) is equivalent to $result=shell_exec( $command) And suggestion, if more people is facing same problem, maybe it is worth to add a ini setting in ezPublish to allow to select system or shell_exec
Marco Zinn	Tuesday 15 January 2008 7:57:32 am Hello Piotr, just a comment: If possible, you may want to try using the GD extension in PHP. I think, in most PHP builds, the GD extension is compiled in. If this is true for your ISP, you can tell eZ to use PHP's GD functions instead of ImageMagick. This removes the need for system calls (for images manipulation, at least). You can check for GD with a phpinfo()-File or in an existing eZ installation in Admin Interface -> Setup -> System information, then look for "Extensions" in the "PHP" block. Or ask your ISP ;) Maybe this is a valid work-around for you. Marco http://www.hyperroad-design.com

Author

Message

Tuesday 15 January 2008 3:04:49 am

The hosting company informed me, that for security reasons they blocked access to system(). Insted, they adviced me to use shell_exec. system() is used to call imageMagick and it seems to me, that would need to modify ezPublish code. Could someone advice a better solution.

Could anyone tell me if

system($command, $result)

is equivalent to

$result=shell_exec( $command)

And suggestion, if more people is facing same problem, maybe it is worth to add a ini setting in ezPublish to allow to select system or shell_exec

Marco Zinn

Tuesday 15 January 2008 7:57:32 am

Hello Piotr,

just a comment: If possible, you may want to try using the GD extension in PHP. I think, in most PHP builds, the GD extension is compiled in.
If this is true for your ISP, you can tell eZ to use PHP's GD functions instead of ImageMagick. This removes the need for system calls (for images manipulation, at least).

You can check for GD with a phpinfo()-File or in an existing eZ installation in Admin Interface -> Setup -> System information, then look for "Extensions" in the "PHP" block.
Or ask your ISP ;)

Maybe this is a valid work-around for you.

Marco
http://www.hyperroad-design.com

eZ debug

Timing:	Jan 18 2025 14:52:22
Script start
Timing:	Jan 18 2025 14:52:22
Module start 'layout'
Timing:	Jan 18 2025 14:52:22
Module start 'content'
Timing:	Jan 18 2025 14:52:23
Module end 'content'
Timing:	Jan 18 2025 14:52:23
Script end

Main resources:

Total runtime	1.5363 sec
Peak memory usage	4,096.0000 KB
Database Queries	54

Timing points:

Checkpoint	Start (sec)	Duration (sec)	Memory at start (KB)	Memory used (KB)
Script start	0.0000	0.0058	587.9141	152.6250
Module start 'layout'	0.0058	0.0029	740.5391	39.4453
Module start 'content'	0.0087	1.5261	779.9844	525.5469
Module end 'content'	1.5348	0.0014	1,305.5313	8.1641
Script end	1.5362		1,313.6953

Time accumulators:

Accumulator	Duration (sec)	Duration (%)	Count	Average (sec)
Ini load
Load cache	0.0031	0.2009	16	0.0002
Check MTime	0.0012	0.0805	16	0.0001
Mysql Total
Database connection	0.0006	0.0387	1	0.0006
Mysqli_queries	1.4920	97.1210	54	0.0276
Looping result	0.0006	0.0358	52	0.0000
Template Total	1.4905	97.0	2	0.7452
Template load	0.0021	0.1338	2	0.0010
Template processing	1.4884	96.8856	2	0.7442
Template load and register function	0.0002	0.0115	1	0.0002
states
state_id_array	0.0017	0.1103	1	0.0017
state_identifier_array	0.0033	0.2151	2	0.0017
Override
Cache load	0.0017	0.1114	17	0.0001
Sytem overhead
Fetch class attribute can translate value	0.0006	0.0406	2	0.0003
Fetch class attribute name	0.0011	0.0700	3	0.0004
XML
Image XML parsing	0.0007	0.0428	2	0.0003
class_abstraction
Instantiating content class attribute	0.0000	0.0004	3	0.0000
General
dbfile	0.0008	0.0521	16	0.0000
String conversion	0.0000	0.0005	4	0.0000
Note: percentages do not add up to 100% because some accumulators overlap

Templates used to render the page:

Usage	Requested template	Template	Template loaded
1	node/view/full.tpl	full/forum_topic.tpl	extension/sevenx/design/simple/override/templates/full/forum_topic.tpl
2	content/datatype/view/ezxmltext.tpl	<No override>	extension/community_design/design/suncana/templates/content/datatype/view/ezxmltext.tpl
6	content/datatype/view/ezxmltags/paragraph.tpl	<No override>	extension/ezwebin/design/ezwebin/templates/content/datatype/view/ezxmltags/paragraph.tpl
2	content/datatype/view/ezxmltags/literal.tpl	<No override>	extension/community/design/standard/templates/content/datatype/view/ezxmltags/literal.tpl
1	content/datatype/view/ezimage.tpl	<No override>	extension/sevenx/design/simple/templates/content/datatype/view/ezimage.tpl
2	content/datatype/view/ezxmltags/line.tpl	<No override>	design/standard/templates/content/datatype/view/ezxmltags/line.tpl
1	print_pagelayout.tpl	<No override>	extension/community/design/community/templates/print_pagelayout.tpl
Number of times templates used: 15 Number of unique templates used: 7

Time used to render debug report: 0.0001 secs