add gfycat.com support (fixes #15)

inc/downloadAndSave.js

@@ -35,7 +35,8 @@ module.exports = function(tools) {
               if (file_prefix === 'flair_') {
                 // Flair emojis end in the name without a file extension
                 file_ext = 'png'
-              } else if(!pathname.includes('.')) {                /**
+              } else if(!pathname.includes('.')) {
+                /**
                 * Sometimes reddit API returns video without extension, like
                 * "DASH_480" and not "DASH_480.mp4".
                 */
@@ -57,6 +58,9 @@ module.exports = function(tools) {
                 resolve('')
               } else {
                 let filename = `${temp_url.pathname.substr(1).split('/')[0]}.${file_ext}`
+                if(temp_url.hostname === 'thumbs.gfycat.com')
+                  filename = `${temp_url.pathname.substr(1).split('/')[0]}`
+                
                 let path = `./static/vids/${dir}${filename}`
                 let temp_path = `./static/vids/${dir}temp_${filename}`
                 if(!fs.existsSync(path)) {

inc/processJsonPost.js

@@ -39,12 +39,17 @@ module.exports = function(fetch) {
           user_flair: (user_preferences.flairs != 'false' ? await formatUserFlair(post) : '')
         }
 
-        let validEmbedDomains = ['gfycat.com', 'youtube.com']
+        let valid_embed_video_domains = ['gfycat.com']
         let has_gif = false
         let gif_to_mp4 = null
         let reddit_video = null
+        let embed_video = false
+        
+        if(post.media)
+          if(valid_embed_video_domains.includes(post.media.type))
+            embed_video = true
 
-        if(post.preview) {
+        if(post.preview && !embed_video) {
           if(post.preview.reddit_video_preview) {
             if(post.preview.reddit_video_preview.is_gif) {
               has_gif = true

inc/processPostMedia.js

@@ -3,28 +3,17 @@ module.exports = function() {
   this.processPostMedia = (obj, post, post_media, has_gif, reddit_video, gif_to_mp4) => {
     return new Promise(resolve => {
       (async () => {
-        let valid_embed_domains = ['gfycat.com', 'youtube.com']
         if(post_media || has_gif) {
           if(!has_gif) {
-            if(valid_embed_domains.includes(post_media.type)) {
+            if(config.valid_embed_video_domains.includes(post_media.type)) {
               if(post_media.type === 'gfycat.com') {
                 obj.has_media = true
+                let video_url = post_media.oembed.thumbnail_url
+                video_url = video_url.replace('size_restricted.gif', 'mobile.mp4')
                 obj.media = {
-                  source: await downloadAndSave(post_media.oembed.thumbnail_url),
+                  source: await downloadAndSave(video_url),
                   height: post_media.oembed.thumbnail_height,
-                  width: post_media.oembed.thumbnail_width,
-                  duration: null,
-                  is_gif: null,
-                  not_hosted_in_reddit: true,
-                  embed_src: null
-                }
-                try {
-                  let str = post_media.oembed.html
-                  let r = /iframe.*?src=\"(.*?)\"/;
-                  let src = r.exec(str)[1]
-                  obj.media.embed_src = cleanUrl(src)
-                } catch(error) {
-                  console.error(`Error while trying to get src link from embed html.`, error)
+                  width: post_media.oembed.thumbnail_width
                 }
               }
               if(post_media.type === 'youtube.com') {