Passing size in the captcha request doesn't make any difference

[kringo]

Tried the following request with additional size map but didn't make any difference

{"level":"easy","media":"image/png","input_type":"text","size":{"width":100,"height":50}}

Is this an issue or i'm doing something wrong here?

[hrj]

I think we are not yet respecting the size parameter. Thanks for bringing it to our attention!

[kringo]

copy that, will wait for the update. Thx.

[kringo]

Wondering if this didn't make the cut in v1.1.0?

[hrj]

@kringo No, it didn't. We haven't been actively committing to the code recently, so I thought cutting out a release of the past unreleased commits would help move the project forward. Now that I am aware of real world users, I might dedicate more time to this project.

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Design idea for this issue

• Define size buckets in the configuration file as an array of width and height. For example: [ [200, 150], [300, 200], [600, 400] ]
• When creating CAPTCHAs in background thread, create them for each defined size bucket.
• When serving CAPTCHAs, filter them by requested size.
• In future, an improvement to save resources could be: background thread only replenishes the size buckets which have been consumed.
• Another improvement could be: if the requested size doesn't match a configured size bucket, then find a CAPTCHA in the nearest matching size bucket and then scale it to requested size.

If anyone would like to take this up, please drop a comment.

[hrj]

Just an update: I have started working on this. Images of the requested sizes are being created and served. The pending work is to scale the text to fit the requested size.

[kringo]

Thanks for the update @hrj, any thoughts to expect a release with these changes?

[hrj]

Sorry for the slow response; got busy with something else. I will hopefully get something out in April first week!

[kringo]

Thanks @hrj

[hrj]

@kringo Just merged the changes for this issue. Do give it a try.

Note:

• The API path is now changed to /v2 because an extra parameter (size is now required on the /captcha endpoint.
• The config section for each Captcha now has an additional setting: allowedSizes
• The Following Captcha Providers were modified to scale the text to fit the specified dimensions:
  • Shadow Text
  • Filter Challenge
  • Rain drops
  • Popping characters