MCImageManager:FAQ

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Frequently Asked Questions

ImageManager if created to be easy to integrate with existing server applications such as CMS systems, web hosting controllers or LMS systems.

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All I get is an 404 error in the dialog

Most likely mod_rewrite. See below for details.

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It just loads and loads forever

Most of the times this because the mod_security plugin is enabled and it blocks the JSON-RPC calls for listing the files. You can normally disable the mod_security engine for specific directories by adding a .htaccess file inside the imagemanager directory. Add the following contents to that file: 

SecFilterEngine Off
SecFilterScanPOST Off
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It loads an incorrect page when I open the ImageManager

This can be due to many things but the most common is that there is a mod_rewrite rule interfering with the ImageManager page requests. You can most of the times disable this for the imagemanager directory by creating a .htaccess file with the contents below in it and place that one in the imagemanager directory. 

# Add this rule to a .htaccess file in the imagemanager directory
RewriteEngine Off
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Insert image only inserts thumbnail not full size image

You can change this behavior by modifying the imagemanager_insert_template init option.

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Thumbnails does not get generated.

Verify write access to the images folder, also verify your thumbnail.gd.enabled settings if you use the PHP version.

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I can't override option XYZ in a specific directory / mc_access not working.

Check the .allow_override option in you config.php/web.config file and also that it's not restricted by some other mc_access file. Remember the config options inherits.

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Variable substitution in options is not working.

If you specify for example ${rootpath} remember to place the contents of this option within ' characters instead of " characters if you are using the PHP version. Since PHP will otherwise think that the $ is a internal PHP variable. 

This will not work: $mcImageManagerConfig['filesystem.file_templates'] = "${rootpath}/templates/document.htm"
This will work: $mcImageManagerConfig['filesystem.file_templates'] = '${rootpath}/templates/document.htm'
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The page is blank/white when I open up MCImageManager

Check your webserver logs, if "display_errors" is off in PHP it will not display them on the page, you need to check the apache error files. You could also upload a simple php file with 
<?php phpinfo(); ?>
in it so that you can check the configuration settings in PHP, check for display_errors and any type of logging information.
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Uploading to directories fails

Some PHP hosting companies have incorrect settings on their servers these issues can be resolved by:

  • Setting the safe_mode_gid setting to true for your host in the vhost config. Since this is the main problem the group is normally correct but not the user.
  • Using the open_basedir is much more efficient to restrict file access across domains than safe_mode.
  • Change the user that apache is running under so it's matched the ftp server or vice versa.
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I can't upload larger files

Make sure that your application runtime is configured correctly:

PHP settings needed in php.ini you can check this with a phpinfo call. 

; Maximum allowed size for uploaded files.
upload_max_filesize = 50M

; Maximum size of POST data that PHP will accept.
post_max_size = 50M

In .NET you need to specify this in your web.config: 

<system.web>
<!-- Enable 32MB uploads -->
<httpRuntime maxRequestLength="32768" />
</system.web>
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