[wp-edu] managing Upload Filetypes on WordPress 3.x.x (Maxwell, Josh)

Fri May 11 13:57:19 UTC 2012

Hate to come in late and at the end of a "solution", but I wanted to share
that I created a plugin with WPMS specifically in mind to allow blogs on a
network to upload a variety of mime-types -- without having to hack the
core or include it into every theme's functions.php.

http://wordpress.org/extend/plugins/ap-extended-mime-types

Thanks,
Josh Maxwell
Web Designer
Tahlequah Public Schools

On Fri, May 11, 2012 at 7:00 AM, <wp-edu-request at lists.automattic.com>wrote:

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>   1. Re: managing Upload Filetypes on WordPress 3.x.x (Whisler, Dave)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 10 May 2012 20:43:53 +0000
> From: "Whisler, Dave" <dkwhisle at uncc.edu>
> Subject: Re: [wp-edu] managing Upload Filetypes on WordPress 3.x.x
> To: "'wp-edu at lists.automattic.com'" <wp-edu at lists.automattic.com>
> Message-ID:
>        <469C92EC338A114C995BE4B8A86743291C1B51 at RPITSEXMS3.its.uncc.edu>
> Content-Type: text/plain; charset="us-ascii"
>
> I followed the directions in that weblink and it works perfectly.   Thanks!
> Is there any way to put a weblink to this page on the doc page about file
> uploads (http://codex.wordpress.org/Uploading_Files) so it's easier to
> find?
>
> Dave
> -----Original Message-----
> From: wp-edu-bounces at lists.automattic.com [mailto:
> wp-edu-bounces at lists.automattic.com] On Behalf Of Muro, Matthew
> Sent: Thursday, May 10, 2012 4:01 PM
> To: wp-edu at lists.automattic.com
> Subject: Re: [wp-edu] managing Upload Filetypes on WordPress 3.x.x
>
> You do not and should not have to edit the core to add or remove a mime
> type.  Use the filter upload_mimes.
>
> http://codex.wordpress.org/Plugin_API/Filter_Reference/upload_mimes
>
> Matthew Muro
> Web Developer
> UA Office of Web Communications
>
>
>
>
>
> On May 10, 2012, at 2:58 PM, Whisler, Dave wrote:
>
> Joseph,
>
> I just looked at wp-includes/functions.php (part of core) and the
> "get_allowed_mime_types" function is what is determining which file types
> are acceptable or not.
>       .accdb is NOT listed in this function, but .mdb is listed in it.
> This is why I cannot upload a .accdb file into WP, but I can upload a .mdb
> file.
>
> So, even in the single-install of WordPress, the acceptable file types to
> upload are limited and not easily updated (out of the box).
> It appears that either you have to edit wp-includes/functions.php (part of
> core)  and add/remove file types from the "get_allowed_mime_types" function
> or you have to use one of the WP plugins (or write your own) to manage the
> list of allowed file types to upload into WordPress.
>
> On one of my multi-site installs, I could not upload the .accdb, nor could
> I upload the .mdb file.
> So, I added the mdb and accdb file formats to the "Upload file types" item
> in the Upload Settings area of multisite network settings.
> Afterwhich I could go into one of the sites in this network and upload the
> .mdb BUT NOT the .accdb file.
> Hmmm....   It appears that on a multisite the filetype must be in the
> "get_allowed_mime_types" function of the wp-includes/functions.php file AND
> in the "Upload file types" list.
>
> In reply to your email below:
>
> The goal is to be able to easily add (or remove) file types from the list
> of file types that can be uploaded into WordPress.  I need this ability for
> single-site installs as well as multisite installs.   I don't want to have
> to edit the core functions.php file (listed above), because then it becomes
> a maint. issue when applying WordPress upgrades/patches.
>
> Does anyone have advice?
>
> Thanks,
> Dave
>
> David K. Whisler | Oracle & MySQL DBA/Developer, WordPress & Joomla
> Administrator UNC Charlotte | The William States Lee College of Engineering
> 9201 University City Blvd. | Charlotte, NC 28223
> Phone: 704-687-3964 | Fax: 704-687-2352
> dkwhisle at uncc.edu<mailto:dkwhisle at uncc.edu> | http://www.uncc.edu
> ---------------------------------------------------------------------------
> If you are not the intended recipient of this transmission or a person
> responsible for delivering it to the intended recipient, any disclosure,
> copying, distribution, or other use of any of the information in this
> transmission is strictly prohibited. If you have received this transmission
> in error, please notify me immediately by reply e-mail or by telephone at
> 704-687-3964. Thank you.
>
>
> -----Original Message-----
> From: wp-edu-bounces at lists.automattic.com<mailto:
> wp-edu-bounces at lists.automattic.com> [mailto:
> wp-edu-bounces at lists.automattic.com] On Behalf Of Joseph Ugoretz
> Sent: Thursday, May 10, 2012 3:33 PM
> To: wp-edu at lists.automattic.com<mailto:wp-edu at lists.automattic.com>
> Subject: Re: [wp-edu] managing Upload Filetypes on WordPress 3.x.x
>
> Weird indeed and you may have me stumped, but maybe some of the more
> expert folks on the list can help.
>
> But just to clarify...
>
> What you want to do is to be able to use the "Upload file types" item in
> the Upload Settings area of multisite network settings to add or subtract
> filetypes?
>
> Is that right?
>
> I guess I'm not certain what the goal is here--to have this work in
> single-site (standard) or multi-site?
>
> I can vouch for the fact that it does (or should) work in multi-site.  So
> I'm not sure how the different behavior in single-site really helps?
>
>
> --
> Joseph Ugoretz, PhD
> Associate Dean of Teaching, Learning and Technology Macaulay Honors
> College - CUNY
> 35 West 67th St.
> New York, NY 10023
> 212.729.2920
> http://macaulay.cuny.edu
>
>
>
>
>
>
> On May 10, 2012, at 3:23 PM, Whisler, Dave wrote:
>
> Joseph,
>
> Ok, so I tried what you said in a regular install of WordPress 3.3.2
> (latest version - not configured for multisite).
> I was not able to upload a MS-Access 2007 db file (.accdb) which I created
> just for this test (just has one table in it with a couple of records...).
> However, when I renamed the file to the old MS-Access 2003 db file
> extension (.mdb file format), then WordPress allowed me to upload it.
>
> Weird, huh?
>
> David K. Whisler | Oracle & MySQL DBA/Developer, WordPress & Joomla
> Administrator UNC Charlotte | The William States Lee College of Engineering
> 9201 University City Blvd. | Charlotte, NC 28223
> Phone: 704-687-3964 | Fax: 704-687-2352
> dkwhisle at uncc.edu | http://www.uncc.edu
> ---------------------------------------------------------------------------
> If you are not the intended recipient of this transmission or a person
> responsible for delivering it to the intended recipient, any disclosure,
> copying, distribution, or other use of any of the information in this
> transmission is strictly prohibited. If you have received this transmission
> in error, please notify me immediately by reply e-mail or by telephone at
> 704-687-3964. Thank you.
>
>
> -----Original Message-----
> From: wp-edu-bounces at lists.automattic.com [mailto:
> wp-edu-bounces at lists.automattic.com] On Behalf Of Joseph Ugoretz
> Sent: Thursday, May 10, 2012 12:36 PM
> To: wp-edu at lists.automattic.com
> Subject: Re: [wp-edu] managing Upload Filetypes on WordPress 3.x.x
>
> Hi Dave,
>
> As far as I've seen, that limit on uploaded file types is specific to
> multisite, not configurable in standard, because the possible security
> problem of untrusted (or less-trusted) users doesn't exist in single-user
> WordPress.  If you're the single user, it can be assumed that you trust
> yourself.
>
> In multisite, though, that option does work fine.  WordPress does utilize
> it, without any plugins, or at least it always has in our install.  We can
> add new file types to that list, and files of that type can then be
> uploaded.  Or conversely, when we remove file types from that list, they
> can no longer be uploaded.
>
> So if that's not working for you, there must be something else wrong.
>  Maybe php settings?
>
> If everything's functioning as it should, as it's designed to, that list
> of acceptable file types is workable and effective.
>
> Joe
>
> --
> Joseph Ugoretz, PhD
> Associate Dean of Teaching, Learning and Technology Macaulay Honors
> College - CUNY
> 35 West 67th St.
> New York, NY 10023
> 212.729.2920
> http://macaulay.cuny.edu
>
>
>
>
>
>
> On May 10, 2012, at 11:21 AM, Whisler, Dave wrote:
>
> I need to know the best way to add/remove items from the list of
> acceptable file types (file extensions) that are permitted in WordPress
> 3.x.x.
>
> Standard WordPress (non-multisite):  It does not have any options to
> add/remove file from the WP Dashboard.
> WP MultiSite Installation:  If you go into the network admin Dashboard, it
> has a field that has a list of acceptable file types here:   Dashboard ->
> Settings -> Network Settings ->  "Upload file types".   However, adding a
> new file type to this list does not seem to enable me to upload a file of
> this type to any of the sites on this WP network.    What am I missing?
>
> Why would WordPress have this option listed in the Network configuration
> on Multisite installations and then not utilize it?     And where is this
> option on a normal WordPress install?
>
> The online WordPress codex seems to be silent on this:
> http://codex.wordpress.org/Uploading_Files
>
> 1.       What is the correct way to accomplish this?
> 2.       And if it cannot be accomplished without using (or writing a
> plugin), let me know which Plugins you have used and why.   Below are some
> plugins that I found (not tested yet) that seem like they might accomplish
> this.   Does anyone have experience using them on a WP multisite network?
>  A major concern is that I do not want to be able to set them network-wide
> - and not have to do any configuration changes on individual sites.
>
> Below are some Plugins that appear like they might do the job.
> http://wordpress.org/extend/plugins/ap-extended-mime-types/
>
> http://wordpress.org/extend/plugins/manage-upload-types/
>
> http://wordpress.org/extend/plugins/add-more-files-extensions/
>
> http://wordpress.org/extend/plugins/uploads/
>
>
> In the database for WP Multi-sites, you can run this query to see the same
> list of upload filetypes as in the Network Settings:
> SELECT meta_key, meta_value FROM wp_sitemeta WHERE
> meta_key="upload_filetypes"; However, I've not found anything like this on
> a single-site WordPress installation.
>
> Some people suggest modifying the function.php file in your WordPress
> theme to do it.   While others have said to modify WordPress core
> (wp-includes/functions.php - add the filetypes in the
> "get_allowed_mime_types() function).   However, I'd rather not modify my
> theme (what if we want to change themes?) or WordPress core (what about
> upgrades) - as this just adds complications.
>
> Please let me know how you accomplish this - as I want to best method for
> the long-run - one that won't end up causing problems in the future.
>
> Thanks,
> Dave
>
> David K. Whisler | Oracle & MySQL DBA/Developer, WordPress & Joomla
> Administrator UNC Charlotte | The William States Lee College of Engineering
> 9201 University City Blvd. | Charlotte, NC 28223
> Phone: 704-687-3964 | Fax: 704-687-2352
> dkwhisle at uncc.edu | http://www.uncc.edu
> ---------------------------------------------------------------------------
> If you are not the intended recipient of this transmission or a person
> responsible for delivering it to the intended recipient, any disclosure,
> copying, distribution, or other use of any of the information in this
> transmission is strictly prohibited. If you have received this transmission
> in error, please notify me immediately by reply e-mail or by telephone at
> 704-687-3964. Thank you.
>
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