[theme-reviewers] TimThumb

Tue Oct 12 20:24:15 UTC 2010

I am using some shared accounts of one of the "big hosting guys" out there
with default setting "enabled".

The use: there are lots of services / products offered through XML, why not
take advantage of all that?

Hotlinking is bad only if it's done by bad guys against good guys :)
Although good guys can protect themselves easy enough.
Good guys, on the other hand, can help each other.

One more thing: after cropping the image, TimThumb serves the cached image
instead, this way breaking the hotlink.

On Tue, Oct 12, 2010 at 11:16 PM, Chip Bennett <chip at chipbennett.net> wrote:

> External image as Post Thumbnail? Hotlinking images = bad. :)
>
> It's true: the core Post Thumbnail functionality requires the image to
> exist in the WordPress database.
>
> What's the use-case for needing external images as Post Thumbnails?
>
> (And doesn't that require PHP to have allow_url_fopen() enabled? That's not
> usually the default setting, is it?)
>
> Chip
>
>
> On Tue, Oct 12, 2010 at 3:05 PM, Radu Ganea <raduganea at raduganea.com>wrote:
>
>> Hi guys,
>>
>> I don't know how to use the core thumbnailing function for external
>> images. I can do that with TimThumb.
>> Maybe I am not 100% familiar to the core thumbnail function
>>
>> Radu Ganea
>>
>>
>>
>> On Tue, Oct 12, 2010 at 11:01 PM, Edward Caissie <
>> edward.caissie at gmail.com> wrote:
>>
>>> Perhaps the author(s)/developer(s) of timthumb should be asked what makes
>>> it so special verus the_post_thumbnail?
>>>
>>> As you wrote, there may be something we are missing on why it should be
>>> used ...
>>>
>>>
>>> Cais.
>>>
>>>
>>> On Tue, Oct 12, 2010 at 3:58 PM, Chip Bennett <chip at chipbennett.net>wrote:
>>>
>>>> Right - and the only thing that I can see that TimThumb does is expose
>>>> image filtering.
>>>>
>>>> 1) I'm not familiar with any Themes using TimThumb solely for image
>>>> filtering (though I concede that there must be some out there...)
>>>>
>>>> 2) The image filtering that TimThumb uses can be called directly from
>>>> PHP <http://www.php.net/manual/en/function.imagefilter.php>.
>>>>
>>>> So, unless someone can point out something that I'm missing, it looks
>>>> like there is no particular *need* for TimThumb.
>>>>
>>>> Chip
>>>>
>>>>
>>>> On Tue, Oct 12, 2010 at 2:55 PM, Edward Caissie <
>>>> edward.caissie at gmail.com> wrote:
>>>>
>>>>> IF timthumb is being used solely in the fashion that
>>>>> the_post_thumbnail() functionality can 100% manage then the_post_thumbnail()
>>>>> should be used in its place ... I can support that on the condition it is
>>>>> explained to the theme author how to do it.
>>>>>
>>>>> I am honestly not familiar enough with the workings of timthumb to know
>>>>> exactly how to replace it with the_post_thumbnail().
>>>>>
>>>>> Now, on the other hand, if a theme is using timthumb for post
>>>>> thumbnails due to a a unique application that the_post_thumbnail does not
>>>>> inherently handle then the_post_thumbnail() remains an optional use item.
>>>>>
>>>>> As to the concern @Anca is raising, I would imagine since
>>>>> the_post_thumbnail() is not using the 'fopen' function that it is addressing
>>>>> that particular issue.
>>>>>
>>>>>
>>>>> Cais.
>>>>>
>>>>>
>>>>> On Tue, Oct 12, 2010 at 3:43 PM, Chip Bennett <chip at chipbennett.net>wrote:
>>>>>
>>>>>> I disagree, entirely.
>>>>>>
>>>>>> The wording of the Guidelines is that use of Post Thumbnail feature is
>>>>>> not required, but that if Post Thumbnail feature is used, then
>>>>>> implementation of the core functionality is required.
>>>>>>
>>>>>> In other words: you don't have to incorporate Post Thumbnails into
>>>>>> your Theme - but if you do, you are REQUIRED to support the core
>>>>>> functionality.
>>>>>>
>>>>>> Chip
>>>>>>
>>>>>>
>>>>>> On Tue, Oct 12, 2010 at 2:40 PM, Edward Caissie <
>>>>>> edward.caissie at gmail.com> wrote:
>>>>>>
>>>>>>> When the timthumb issue arose at the end of August I put forward to
>>>>>>> all the theme authors affected to consider using post_thumbnail() core
>>>>>>> functionality as an alternative, but since post_thumbnail() usage is still
>>>>>>> only recommended, theme authors are well within their designer's perogative
>>>>>>> using timthumb, especially if they are making use of its unique functions.
>>>>>>>
>>>>>>>
>>>>>>> Cais.
>>>>>>>
>>>>>>>
>>>>>>> On Tue, Oct 12, 2010 at 3:30 PM, Chip Bennett <chip at chipbennett.net>wrote:
>>>>>>>
>>>>>>>> So, here's all I can really determine that TimThumb offers, that
>>>>>>>> can't be accomplished through use of core Post Thumbnails functionality: image
>>>>>>>> filters<http://www.binarymoon.co.uk/2010/08/timthumb-image-filters/>
>>>>>>>> .
>>>>>>>>
>>>>>>>> I can see image filtering being useful for Theme designs.
>>>>>>>>
>>>>>>>> But, should we be checking to ensure that Themes aren't just using
>>>>>>>> TimThumb to make thumbnails (which should be done using the core Post
>>>>>>>> Thumbnail functionality)?
>>>>>>>>
>>>>>>>> Chip
>>>>>>>>
>>>>>>>> On Tue, Oct 12, 2010 at 2:19 PM, Chip Bennett <chip at chipbennett.net
>>>>>>>> > wrote:
>>>>>>>>
>>>>>>>>> I'm completely unfamiliar with TimThumb. What is it, and what does
>>>>>>>>> it do?
>>>>>>>>>
>>>>>>>>> It looks to me like it's just an image thumbnailer/resizer - which
>>>>>>>>> is exactly what core Post Thumbnails does.
>>>>>>>>>
>>>>>>>>> So, should we even be allowing new Themes to be using TimThumb?
>>>>>>>>> Does it do something that can't be accomplished with the core functionality?
>>>>>>>>>
>>>>>>>>> Chip
>>>>>>>>>
>>>>>>>>>  On Tue, Oct 12, 2010 at 2:00 PM, Gene Robinson <
>>>>>>>>> emhr at submersible.me> wrote:
>>>>>>>>>
>>>>>>>>>>  I don't use tim-thumb but two themes I just reviewed were using
>>>>>>>>>> it. I'll have to go back and look into them regarding this. The tickets
>>>>>>>>>> were: Sriwijaya <http://themes.trac.wordpress.org/ticket/1333>
>>>>>>>>>>   and Syailendra <http://themes.trac.wordpress.org/ticket/1428>. Also
>>>>>>>>>> could someone look at my final comment on Syailendra<http://themes.trac.wordpress.org/query?keywords=%7Etheme-syailendra> as
>>>>>>>>>> I am unsure if Chris is cc'd on this ticket by simply commenting.
>>>>>>>>>>
>>>>>>>>>> You are welcome to assign me another theme if you like. When is
>>>>>>>>>> training complete or is there a milestone to reach?
>>>>>>>>>>
>>>>>>>>>> -Gene(emhr)
>>>>>>>>>>
>>>>>>>>>> On Oct 12, 2010, at 2:25 PM, Edward Caissie wrote:
>>>>>>>>>>
>>>>>>>>>> @Gene -
>>>>>>>>>>
>>>>>>>>>> Around the end of August several themes were noted to be using an
>>>>>>>>>> older version of timthumb that had a potentiall security issue associated
>>>>>>>>>> with the code as it was written. The timbthumb script itself was corrected
>>>>>>>>>> before then but there were still older versions in use on some repository
>>>>>>>>>> themes.
>>>>>>>>>>
>>>>>>>>>> If you are using timthumb you can get the current version here if
>>>>>>>>>> need be: http://code.google.com/p/timthumb/
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
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>>>>>>>>>>
>>>>>>>>>
>>>>>>>>
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