Port extension to Firefox.

Changes: - Created a folder named Firefox (for the Firefox version) - Modified progressbar.js (added polyfill for window.requestAnimationFrame because the API is unavailable in Firefox) - Modified manifest.json (rolled back to Manifest version 2 because of CORS issues and explicit permission issues, this is not an issue in Firefox as it is still properly supported, changed back from "host_permissions" to "permissions", added background page) - Created background.html to include all the Javascript files that will run in the background (order of the import matters) - Modified background.js to remove importScripts() (this is not supported in background pages in Firefox)
mlsad3 · Jan 13, 2024 · ff2adf3 · ff2adf3
1 parent bdf4e82
commit ff2adf3
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Showing 17 changed files with 2,848 additions and 2,387 deletions.
diff --git a/AmznHistoricChart/progressbar.js b/AmznHistoricChart/progressbar.js
diff --git a/AmznHistoricChartFirefox/AmazonIcon128.png b/AmznHistoricChartFirefox/AmazonIcon128.png
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+../AmznHistoricChart/AmazonIcon128.png
diff --git a/AmznHistoricChartFirefox/AmazonIcon32.png b/AmznHistoricChartFirefox/AmazonIcon32.png
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+../AmznHistoricChart/AmazonIcon32.png
diff --git a/AmznHistoricChartFirefox/AmazonIcon48.png b/AmznHistoricChartFirefox/AmazonIcon48.png
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+../AmznHistoricChart/AmazonIcon48.png
diff --git a/AmznHistoricChartFirefox/AmazonIcon64.png b/AmznHistoricChartFirefox/AmazonIcon64.png
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+../AmznHistoricChart/AmazonIcon64.png
diff --git a/AmznHistoricChartFirefox/AmazonIcon96.png b/AmznHistoricChartFirefox/AmazonIcon96.png
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+../AmznHistoricChart/AmazonIcon96.png
diff --git a/AmznHistoricChartFirefox/LICENSE_lrumap.txt b/AmznHistoricChartFirefox/LICENSE_lrumap.txt
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+../AmznHistoricChart/LICENSE_lrumap.txt
diff --git a/AmznHistoricChartFirefox/LICENSE_progressbar.txt b/AmznHistoricChartFirefox/LICENSE_progressbar.txt
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+../AmznHistoricChart/LICENSE_progressbar.txt
diff --git a/AmznHistoricChartFirefox/amazon.user.js b/AmznHistoricChartFirefox/amazon.user.js
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+../AmznHistoricChart/amazon.user.js
diff --git a/AmznHistoricChartFirefox/amazonccc.js b/AmznHistoricChartFirefox/amazonccc.js
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+../AmznHistoricChart/amazonccc.js
diff --git a/AmznHistoricChartFirefox/amazonfs.js b/AmznHistoricChartFirefox/amazonfs.js
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+../AmznHistoricChart/amazonfs.js
diff --git a/AmznHistoricChartFirefox/background.html b/AmznHistoricChartFirefox/background.html
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+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <script src="lru.js"></script>
+  <script src="amazonccc.js"></script>
+  <script src="amazonfs.js"></script>
+  <script src="background.js"></script>
+</head>
+<body>
+
+</body>
+</html>
diff --git a/AmznHistoricChartFirefox/background.js b/AmznHistoricChartFirefox/background.js
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+/**
+ * Possible parameters for request:
+ *  action: "xhttp" for a cross-origin HTTP request
+ *  method: Default "GET"
+ *  url   : required, but not validated
+ *  data  : data to send in a POST request
+ * From http://stackoverflow.com/a/7699773/277601
+ * The callback function is called upon completion of the request
+ * NOTE: If you want to have some back-and-forths between the content script and background page,
+ *       use chrome.runtime.connect and chrome.runtime.onConnect instead of sendMessage/onMessage
+ * */
+chrome.runtime.onMessage.addListener(function (request, sender, callback) {
+  // console.log("Starting Step 0: " + request.action);
+  if (request.action == "fakespot_xhttp") {
+    amazonfs.triage(request.url, callback);
+    return true; // prevents the callback from being called too early on return
+  } else if (request.action == "fakespot_clearcache") {
+    amazonfs.clearCache(request.url);
+    return true; // prevents the callback from being called too early on return
+  } else if (request.action == "amazonccc_xhttp") {
+    amazonccc.triage(request.asin, callback);
+    return true; // prevents the callback from being called too early on return
+  } else if (request.action == "camelimage_xhttp") {
+    amazoncamel.loadImageData(request, callback);
+    return true;
+  } else {
+    return false;
+  }
+});
+
+const amazoncamel = (() => {
+  // Refactored loadImageData without DOM
+  loadImageData = async (request, callback) => {
+    try {
+      const response = await fetch(request.url);
+      const blob = await response.blob();
+      const reader = new FileReader();
+      reader.readAsDataURL(blob);
+      reader.onloadend = () => {
+        const dataURL = reader.result;
+        callback(dataURL);
+      };
+    } catch (err) {
+      console.error("Error fetching image:", error);
+      callback(
+        "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw=="
+      );
+      // Handle errors appropriately, e.g., call the callback with an error message
+    }
+  };
+  return {
+    loadImageData,
+  };
+})();
diff --git a/AmznHistoricChartFirefox/jquery-2.1.4.min.js b/AmznHistoricChartFirefox/jquery-2.1.4.min.js
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+../AmznHistoricChart/jquery-2.1.4.min.js
diff --git a/AmznHistoricChartFirefox/lru.js b/AmznHistoricChartFirefox/lru.js
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+../AmznHistoricChart/lru.js
diff --git a/AmznHistoricChartFirefox/manifest.json b/AmznHistoricChartFirefox/manifest.json
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+{
+  "name": "Historic Price Shopper: Amazon Price Tracking",
+  "version": "0.51",
+  "manifest_version": 2,
+  "description": "Adds Amazon.com historical price graph above the 'Add To Cart' button so you can monitor if it's a good time to buy.",
+  "icons": {
+    "128": "AmazonIcon128.png",
+    "96": "AmazonIcon96.png",
+    "64": "AmazonIcon64.png",
+    "48": "AmazonIcon48.png",
+    "32": "AmazonIcon32.png"
+  },
+  "background": {
+    "page": "background.html"
+  },
+  "content_scripts": [
+    {
+      "matches": [
+        "https://www.amazon.com/*",
+        "https://smile.amazon.com/*",
+        "https://amazon.com/*",
+        "https://www.amazon.ca/*",
+        "https://amazon.ca/*",
+        "https://www.amazon.co.uk/*",
+        "https://amazon.co.uk/*"
+      ],
+      "js": [
+        "jquery-2.1.4.min.js",
+        "lru.js",
+        "amazonfs.js",
+        "progressbar.js",
+        "amazon.user.js",
+        "amazonccc.js"
+      ]
+    }
+  ],
+  "permissions": [
+    "webRequest",
+    "webRequestBlocking",
+    "http://fakespot.com/",
+    "http://*.fakespot.com/",
+    "https://fakespot.com/",
+    "https://*.fakespot.com/",
+    "http://camelcamelcamel.com/",
+    "http://*.camelcamelcamel.com/",
+    "https://camelcamelcamel.com/",
+    "https://*.camelcamelcamel.com/"
+  ]
+}
diff --git a/AmznHistoricChartFirefox/progressbar.js b/AmznHistoricChartFirefox/progressbar.js
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+../AmznHistoricChart/progressbar.js