added browser extension proof of concept

browser_extension/extension/background.js

@@ -0,0 +1,94 @@
+/*
+extension background script listening for events
+*/
+
+console.log("running background.js");
+
+let browserType = getBrowser();
+
+
+// boilerplate to dedect browser type api
+function getBrowser() {
+    if (typeof chrome !== "undefined") {
+        if (typeof browser !== "undefined") {
+            console.log("detected firefox");
+            return browser;
+        } else {
+            console.log("detected chrome");
+            return chrome;
+        }
+    } else {
+        console.log("failed to dedect browser");
+        throw "browser detection error"
+    };
+}
+
+
+// send post request to API backend
+async function sendPayload(url, token, payload) {
+
+    const rawResponse = await fetch(url, {
+        method: "POST",
+        headers: {
+            "Accept": "application/json",
+            "Content-Type": "application/json",
+            "Authorization": token,
+            "mode": "no-cors"
+        },
+        body: JSON.stringify(payload)
+    });
+
+    const content = await rawResponse.json();
+    return content;
+}
+
+
+// read access storage and send
+function forwardRequest(payload) {
+
+    console.log("running forwardRequest");
+
+    function onGot(item) {
+        console.log(item.access);
+
+        const url = `${item.access.url}:${item.access.port}/api/download/`;
+        console.log(`sending to ${url}`);
+        const token = `Token ${item.access.apiKey}`;
+
+        sendPayload(url, token, payload).then(content => {
+            console.log(content);
+        })
+
+    };
+
+    function onError(error) {
+        console.local("failed to get access details");
+        console.log(`Error: ${error}`);
+    };
+
+    browserType.storage.local.get("access", function(result) {
+        onGot(result)
+    });
+
+}
+
+
+// listen for messages
+browserType.runtime.onMessage.addListener(
+    function(request, sender, sendResponse) {
+        console.log("responding from background.js listener");
+        console.log(JSON.stringify(request));
+        if (request.download) {
+            console.log("found new download task");
+            let payload = {
+                "data": [
+                    {
+                        "youtube_id": request.download["videoId"],
+                        "status": "pending",
+                    }
+                ]
+            }
+            forwardRequest(payload);
+        };
+    }
+);