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Steam: Automatically check Subscriber Agreement checkboxes

Automatically checks Steam Subscriber Agreement checkboxes

  1. // ==UserScript==
  2. // @name        Steam: Automatically check Subscriber Agreement checkboxes
  3. // @namespace   zo8dd7kkrrnquyxs5yd2
  4. // @match       https://store.steampowered.com/account/registerkey
  5. // @match       https://store.steampowered.com/account/registerkey?*
  6. // @match       https://store.steampowered.com/account/registerkey/
  7. // @match       https://store.steampowered.com/account/registerkey/?*
  8. // @match       https://checkout.steampowered.com/checkout
  9. // @match       https://checkout.steampowered.com/checkout?*
  10. // @match       https://checkout.steampowered.com/checkout/
  11. // @match       https://checkout.steampowered.com/checkout/?*
  12. // @match       https://steamcommunity.com/*
  13. // @grant       none
  14. // @version     1.6.1
  15. // @description Automatically checks Steam Subscriber Agreement checkboxes
  16. // @inject-into content
  17. // @run-at      document-end
  18. // @sandbox     DOM
  19. // @license     MIT
  20. // ==/UserScript==
  21.  
  22. (function () {
  23. 	"use strict";
  24.  
  25. 	const keepChecked = function (event) {
  26. 		if (!this.checked) {
  27. 			event.preventDefault();
  28. 		}
  29. 	};
  30.  
  31. 	const checkIDs = ["accept_ssa", "market_sell_dialog_accept_ssa", "market_buyorder_dialog_accept_ssa", "market_buynow_dialog_accept_ssa", "market_multi_accept_ssa"];
  32. 	const found = [];
  33.  
  34. 	for (const id of checkIDs) {
  35. 		const box = document.getElementById(id);
  36.  
  37. 		if (box?.type === "checkbox") {
  38. 			box.checked = true;
  39. 			box.defaultChecked = true;
  40. 			box.tabIndex = -1;
  41. 			box.addEventListener("click", keepChecked);
  42.  
  43. 			found.push(id);
  44. 		}
  45. 	}
  46.  
  47.  
  48. 	// Additionally prevent checkboxes from being unchecked by JavaScript.
  49. 	// The "redeem key" page for example does this - you have to manually re-tick the box for each key.
  50. 	// We do this by adding a special "checked" property to the checkboxes found.
  51. 	if (found.length) {
  52. 		const inject = function (checkIDs) {
  53. 			const checkedDescriptor = {
  54. 				configurable: true,
  55. 				enumerable: false,
  56. 				// no-op to prevent changes
  57. 				set() {},
  58. 				// copy over native getter
  59. 				get: Reflect.getOwnPropertyDescriptor(HTMLInputElement.prototype, "checked").get
  60. 			};
  61.  
  62. 			for (const id of checkIDs) {
  63. 				Reflect.defineProperty(document.getElementById(id), "checked", checkedDescriptor);
  64. 			}
  65. 		};
  66.  
  67. 		const script = document.createElement("script");
  68. 		script.textContent = `"use strict";(${inject})(${JSON.stringify(found)});`;
  69. 		(document.head ?? document.documentElement).prepend(script);
  70. 		script.remove();
  71. 	}
  72. })();