retrieve thumbnail uri but do not download

[schealex]

Description:

I would like to just receive the thumbnail url but not actually have to download it. Is that possible at all? I couldn't find any method to do that.

MegaApiClient Version: 1.10.2

[gpailler]

Hello,

There is no public method in MegaApiClient to retrieve only the thumbnail URL because it simply doesn't exist. When requesting the thumbnail, MegaApiClient receives a blob of encrypted data and needs to extract/decrypt its content to get the actual image: https://github.com/gpailler/MegaApiClient/blob/master/MegaApiClient/MegaApiClient.cs#L964-L1024

[schealex]

Hey @gpailler thanks for the response. When looking at https://github.com/gpailler/MegaApiClient/blob/master/MegaApiClient/MegaApiClient.cs#L993 so downloadResponse.Url is not the url of the image right? It's a url where the blob data comes from?

[gpailler]

Yes correct. It's not the thumbnail itself but a handle + blob size + blob content. The blob content is the thumbnail but encrypted

[schealex]

Is there a way to generate the url in some other way? I wasn't even able to reverse engineer the path where the image gets loaded from in the browser version of mega.nz :/ i'm building a sortof crawling tool and i don't want to have to download the thumbnails on the server side just to send them to the clients if i can avoid the traffic this causes

[gpailler]

The url with the thumbnail content already decrypted just doesn't exist. As you can see in the DownloadFileAttribute method, the thumbnail is decrypted in memory.

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