find the best icon by image dimension.

package.json

@@ -16,6 +16,7 @@
     "axios": "^0.9.1",
     "cheerio": "^0.20.0",
     "file-type": "^3.8.0",
+    "image-size": "^0.5.0",
     "source-map-support": "^0.4.0"
   },
   "devDependencies": {

src/modules/download/downloadIcon.js

@@ -1,6 +1,8 @@
 const axios = require('axios');
 const url = require('url');
 const fileType = require('file-type');
+const imageSize = require('image-size');
+
 
 function getExtension(downloadUrl) {
     return downloadUrl.match(/\.(png|jpg|ico)/)[0];
@@ -41,7 +43,15 @@ function downloadIcon(iconUrl) {
         // add `.` to ext
         fileDetails.ext = `.${fileDetails.ext}`;
 
+        var dimension;
+        try {
+            dimension = imageSize(iconData);
+        } catch (e) {
+            dimension = { width: 0, height: 0 };
+        }
+
         return Object.assign({
+        	dimension: dimension,
             source: iconUrl,
             name: getSiteDomain(iconUrl),
             data: iconData,

src/modules/findBestIcon.js

@@ -1,10 +1,31 @@
+function checkSquareDimension(dimension) {
+    if (dimension == null || dimension.width <= 0 || dimension.height <= 0) {
+        return false;
+    }
+
+    return dimension.width === dimension.height;
+}
+
+function compareByDimension(a, b) {
+	var ra = checkSquareDimension(a.dimension);
+    var rb = checkSquareDimension(b.dimension);
+
+    if (rb == true && ra == false) {
+    	return 1;
+    } else if (rb == false && ra == true) {
+    	return -1;
+    }
+
+   	return b.dimension.width - a.dimension.width;
+}
+
+function sortIconsByDimension(icons) {
+    return icons.sort(compareByDimension);
+}
+
 function sortIconsBySize(icons) {
-    return icons.sort((a, b) => {
-        if (a.size < b.size) {
-            return 1;
-        } else {
-            return -1;
-        }
+    return icons.sort(function (a, b) {
+        return b.size - a.size;
     });
 }
 
@@ -14,7 +35,9 @@ function sortIconsBySize(icons) {
  * @param [ext]
  */
 function findBestIcon(icons, ext) {
-    const sorted = sortIconsBySize(icons);
+    var sortingFunc = ext == '.ico' ? sortIconsBySize : sortIconsByDimension; //image-size doesn't support .ico.
+	var sorted = sortingFunc(icons);
+
     if (ext) {
         for (let icon of sorted) {
             if (icon.ext === ext) {