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Add Quantum Randomness extension for Scratch #513
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| (function (Scratch) { | ||
| 'use strict'; | ||
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| let apikey = ''; | ||
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| class Extension { | ||
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Contributor
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Not a requirement, but it'd be nice if this were named something relevant rather than just "Extension." |
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| getInfo() { | ||
| return { | ||
| id: 'anuqrngisfreakingawesome', | ||
| name: 'Quantum Randomness', | ||
| color1: '#21ab61', | ||
| blocks: [ | ||
| { | ||
| opcode: 'how2getapikey', | ||
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Contributor
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Buttons don't need opcodes, this can just use the |
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| text: 'How To Get An Api Key', | ||
| blockType: Scratch.BlockType.BUTTON | ||
| }, | ||
| { | ||
| opcode: 'nrandomnumbers', | ||
| text: 'Get Random Number Inbetween [MIN] To [MAX]', | ||
| blockType: Scratch.BlockType.REPORTER, | ||
| arguments: { | ||
| MIN: { | ||
| type: Scratch.ArgumentType.NUMBER, | ||
| defaultValue: 1 | ||
| }, | ||
| MAX: { | ||
| type: Scratch.ArgumentType.NUMBER, | ||
| defaultValue: 10 | ||
| } | ||
| } | ||
| }, | ||
| { | ||
| opcode: 'setapikey', | ||
| text: 'Set Api Key To [APIKEY]', | ||
| blockType: Scratch.BlockType.COMMAND, | ||
| arguments: { | ||
| APIKEY: { | ||
| type: Scratch.ArgumentType.STRING, | ||
| defaultValue: 'Insert Api Key' | ||
| } | ||
| } | ||
| } | ||
| ] | ||
| }; | ||
| } | ||
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| how2getapikey() { | ||
| alert( | ||
| "How To Get An Api Key(100% Clickbait)(Cops Called)(At 3 Am)Works In 2026\n\n" + | ||
| "1. Go to https://quantumnumbers.anu.edu.au/\n\n" + | ||
| "2. Create an account or log in.\n\n" + | ||
| "3. Open your Dashboard or Account page.\n\n" + | ||
| "4. Locate your API Key section.\n\n" + | ||
| "5. Copy your Free API Key.\n\n" + | ||
| "6. Paste it into the 'Set Api Key' block.\n\n" + | ||
| "Pro Tip: Try Encoding Your Api Key Cuz In A Site Where Seeing The Code Of Projects Is As Easy As A Click Of A Button... You Will Need It" | ||
|
Contributor
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Security through obscurity is not real security, it's like hiding spare keys under a rock in your yard. Sure, nobody will know it's there unless you tell them, or they scope it out, but if they know it's there, then it's pretty easy to break into your house.
Member
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. not even that. its REALLY easy to find the api key. you can just look at the network tab in inspect element. There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. |
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| ); | ||
| } | ||
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| async nrandomnumbers(args) { | ||
| let min = Number(args.MIN); | ||
| let max = Number(args.MAX); | ||
| if (min > max) [min, max] = [max, min]; | ||
| if (min === max) return min; | ||
| try { | ||
| const controller = new AbortController(); | ||
| const timeout = setTimeout(() => controller.abort(), 3000); | ||
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Contributor
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. I'd specify a message to say that this abortion was because it got timed out. |
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| const response = await fetch( | ||
| 'https://api.quantumnumbers.anu.edu.au?length=1&type=uint8', | ||
| { | ||
| headers: { | ||
| 'x-api-key': apikey | ||
| }, | ||
| signal: controller.signal | ||
| } | ||
| ); | ||
| clearTimeout(timeout); | ||
| const json = await response.json(); | ||
| const quantumValue = json.data[0] / 256; | ||
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Contributor
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. The documentation specifies that the number will always be between 0 and 255, not 256, so this should be dividing by 255. |
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| return Math.floor(min + quantumValue * (max - min + 1)); | ||
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| } catch (error) { | ||
| console.warn("Quantum API failed, using Math.random()", error); | ||
| return Math.floor(min + Math.random() * (max - min + 1)); | ||
| } | ||
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Contributor
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. You should probably be using the web-crypto method const value = new Uint8Array(1);
crypto.getRandomValues(value);
return Math.floor(min + (value[0]/255) * (max - min + 1)); |
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| } | ||
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| setapikey(args) { | ||
| apikey = args.APIKEY; | ||
| } | ||
| } | ||
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| Scratch.extensions.register(new Extension()); | ||
| })(Scratch); | ||

There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
As this is global state, it might be a good idea to add a serializer for this so it doesn't need to be set on project start each time.