Refactor: Update getimagesize() Function to Accept Image Paths Instead of URLs

[ArchanRD]

Fixes

Fixes #187 by @brylie

Description

The function getimagesize() takes image as parameter and returns the image size i.e height and width. In this PR, we replace image url with image path to fix this issue.

Technical details

This issue doesn't occur everytime, however in some cases when a website:

• Has basic auth
• Timesout while loading the image

the image may not be accessible through the image url, hence calling the getimagesize() with image url may not work always. Also everytime getimagesize() function is called, the server sends a request to load the image increasing execution time. Hence I've chosen to pass image path instead of image url in getimagesize(). This solution handles the above 2 cases as well as addresses the performace issue of the code.

Tests

As described above, this situation doesn't always occur, so it may be difficult to test.

Checklist

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• I added or updated tests for the changes I made (if applicable).
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[possumbilities]

@ArchanRD Thank you for this contribution!

Maybe I'm missing something, but why not make the change further up the chain of functionality like here, so that the image_url when passed to the function later behaves normally rather than relying on the function to further modify/cleanup the url?

• https://github.com/creativecommons/wp-plugin-creativecommons/blob/2871fd257a642d75dcc23054949f71787954d4ac/includes/class-creativecommons.php#L1061C4-L1061C50

[ArchanRD]

Hey @possumbilities, I tried to do that but I found that the image_url is comming from license in wp_options. If I change the update_site_option call here to add a new key image_path, then anyone updating to this plugin will break it's functionality, since they won't have image_path key in the DB. We will likely require a small migration change for that solution to work. Since that would become more complicated solution I thought we should go with this simpler approach.

[ArchanRD]

I have simplified the implementation a bit, so it's essentially a one liner change ( but GH is showing it a bit differently though ).

[possumbilities]

I believe the two global variables here should be properly escaped. The value of $image_url is already escaped in its definition further up in the file, but the use of these two globals here doesn't provide them as escaped values.