From 64e38ab240a1ca3427592eb80f2cef57fddbdafe Mon Sep 17 00:00:00 2001
From: Arpit Chakladar <54011232+arpitchakladar@users.noreply.github.com>
Date: Fri, 13 Jun 2025 18:55:27 +0530
Subject: Sending OCR request along with captcha image data to the background
 script.

---
 src/background/run-ocr.ts  | 18 +++++++++++++-----
 src/scripts/login/index.ts |  3 +--
 2 files changed, 14 insertions(+), 7 deletions(-)

(limited to 'src')

diff --git a/src/background/run-ocr.ts b/src/background/run-ocr.ts
index d61e71a..f6d1339 100644
--- a/src/background/run-ocr.ts
+++ b/src/background/run-ocr.ts
@@ -1,7 +1,15 @@
-chrome.runtime.onMessage.addListener(async (message, sender, sendResponse) => {
-	if (message.type === "ping") {
-		console.log("Received ping from content script");
-		console.log(message.data);
-		sendResponse({ text: "pong" });
+import Tesseract from "tesseract.js";
+
+chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
+	if (message.type === "OCR") {
+		(async () => {
+			const { data: { text, confidence } } = await Tesseract.recognize(message.dataURL, "eng+osd", {
+				logger: m => console.log(m),
+			});
+			sendResponse({ text, confidence });
+		})();
+		return true;
 	}
+
+	return false;
 });
diff --git a/src/scripts/login/index.ts b/src/scripts/login/index.ts
index dacc90a..b7e0a73 100644
--- a/src/scripts/login/index.ts
+++ b/src/scripts/login/index.ts
@@ -1,4 +1,3 @@
-import Tesseract from "tesseract.js";
 import { interceptPost, interceptGet } from "@/shared/intercept-jquery-ajax";
 
 function prepareCaptcha(ctx: CanvasRenderingContext2D, width: number, height: number) {
@@ -84,7 +83,7 @@ const observer = new MutationObserver((mutationsList, obs) => {
 					prepareCaptcha(ctx, canvas.width, canvas.height);
 					canvas.style.display = "";
 					const dataURL = canvas.toDataURL("image/png");
-					chrome.runtime.sendMessage({ type: "ping", data: "hello background" }).then(console.log);
+					chrome.runtime.sendMessage({ type: "OCR", dataURL }, console.log);
 					// TODO: Perform OCR
 					// window.postMessage({
 					// 	type: "RUN_OCR",
-- 
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