Fix Google Drive support

lua/autorun/wowozela.lua

@@ -152,11 +152,27 @@ if CLIENT then
         })
     end
 
+    local patterns = {
+        ["drive.google.com/file/d/([%d%w]+)/view"] = "https://drive.google.com/u/0/uc?id=%s&export=download",
+    }
+    function wowozela.ProcessURL(url)
+        for pattern, replace in pairs(patterns) do
+            local match = string.match(url, pattern)
+            if match then
+                return string.format(replace, match)
+            end
+        end
+
+        return url
+    end
 
     function wowozela.PlayURL(name, settings, callback, failurecallback)
+        if #name == 0 then return failurecallback and failurecallback("Empty URL?") end
         if not wowozela.URLWhitelist(name) then
             return failurecallback and failurecallback("Not a whitelisted URL.")
         end
+
+        name = wowozela.ProcessURL(name)
         GetURLSound(name, function(sndPath)
             sound.PlayFile(sndPath, settings, callback)
         end, failurecallback or function() end)
@@ -891,6 +907,9 @@ simple [[onedrive.live.com/redir]]
 ---  https://docs.google.com/uc?export=download&confirm=UYyi&id=0BxUpZqVaDxVPeENDM1RtZDRvaTA
 
 simple [[docs.google.com/uc]]
+simple [[drive.google.com/file/d/]]
+simple [[drive.google.com/u/0/uc]]
+
 --[=[
 -- Imgur
 --- Examples: 

lua/weapons/wowozela.lua

@@ -1034,12 +1034,11 @@ if CLIENT then
             end)
         end
 
-        
         local function soundError(reason)
             LocalPlayer():ChatPrint(("Unable to load sound: %s"):format(reason))
         end
         Menu:AddOption("custom...", function()
-            Derma_StringRequest("Sound (Mp3/Ogg)", "Insert a web-hosted ogg or mp3.\n(GitHub, Vocaroo, Dropbox, Puush, Google Drive or similar sites)", "", function(text)
+            Derma_StringRequest("Sound (Mp3/Ogg)", "Insert a web-hosted ogg or mp3.\n(GitHub, Vocaroo, Puush, Google Drive or similar sites)", "", function(text)
                 if text:sub(1, 4) ~= "http" then return end
 
                 if text:sub(1, 19) == "https://github.com/" and text:sub(-9) ~= "?raw=true" then