Added support for RedGifs and Reddit albums. Improved command line logger. Added rate limiters for reddit and host URLs.

src/methods/redgifs.js

@@ -0,0 +1,69 @@
+'use strict';
+
+const fetch = require('node-fetch');
+const mime = require('mime');
+
+function scrapeGallery(data) {
+    const oldestDate = Math.min(...data.gifs.map(gif => gif.createDate));
+
+    return {
+        album: {
+            id: data.id,
+            datetime: new Date(oldestDate * 1000),
+        },
+        items: data.gifs.map(gif => ({
+            id: gif.id,
+            url: gif.urls.hd,
+            description: gif.tags.join(', '),
+            type: mime.getType(gif.urls.hd),
+            datetime: new Date(gif.createDate * 1000),
+            original: gif,
+        })),
+    };
+}
+
+async function fetchGallery(galleryId) {
+    const res = await fetch(`https://api.redgifs.com/v2/gallery/${galleryId}`);
+    const data = await res.json();
+
+    if (!data.gifs) {
+        return null;
+    }
+
+    return scrapeGallery(data);
+}
+
+async function redgifs(host) {
+    const res = await fetch(`https://api.redgifs.com/v2/gifs/${host.id.toLowerCase()}`);
+    const data = await res.json();
+
+    if (data.errorMessage) {
+        throw new Error(`RedGifs API returned error for source '${host.url}' (${res.status}): ${data.errorMessage.description}`);
+    }
+
+    if (data.id && data.gifs) {
+        return scrapeGallery(data);
+    }
+
+    if (!data.gif) {
+        return null;
+    }
+
+    if (data.gif.gallery) {
+        return fetchGallery(data.gif.gallery);
+    }
+
+    return {
+        album: null,
+        items: [{
+            id: data.gif.id,
+            url: data.gif.urls.hd,
+            description: data.gif.tags.join(', '),
+            type: mime.getType(data.gif.urls.hd),
+            datetime: new Date(data.gif.createDate * 1000),
+            original: data.gif,
+        }],
+    };
+}
+
+module.exports = redgifs;