How to download multiples files with UrlLoader?

plicatibu · December 2019

I'm trying to adapt UrlLoader example to download multiple files.

My problem is that when I try to download next file it interrupts the previous one.

I tried to start next downloads from onComplete handler but I'm making some sily mistske because it is not working.

As I failed to fix it I duplicated the sampke code 3 timed to download all files I wanted to.

Any advice id very much appreciated.

Thanks.

rrraptor · December 2019

FilesLoader = Core.class(UrlLoader, function(url,method,headers,body) return nil end)
 
function FilesLoader:init(url, files)
	self.url = url
	self.files = files
	self.currentFileInd = 1
	self.currentFile = ""
	self.maxFiles = #self.files
 
	self:addEventListener(Event.ERROR, self.error, self)
	self:addEventListener(Event.COMPLETE, self.complete, self)
end
 
function FilesLoader:message(str, ...)
	print(("[FilesLoader]: "..str):format(...))
end
 
function FilesLoader:error()
	self:message("Error while loading file \"%s\"", self.currentFile)
end
 
function FilesLoader:complete(event)
	local out = io.open("|D|"..self.currentFile, "wb")
	out:write(event.data)
	out:close()
	self:message("Finished loading \"%s\"", self.currentFile)
	if (self.currentFileInd <= self.maxFiles) then 
		self:start()
	else
		self:message("All downloads finished.")
	end
end
 
function FilesLoader:start()
	self.currentFile = self.files[self.currentFileInd]
	self:message("Loading file \"%s\"...", self.currentFile)
	self:load(self.url .. self.currentFile)
	self.currentFileInd += 1
end
 
local url = "<a href="https://raw.githubusercontent.com/MultiPain/Gideros_BluredShape/master/&quot" target="_blank" rel="nofollow">https://raw.githubusercontent.com/MultiPain/Gideros_BluredShape/master/&quot</a>;
local file_list = { "main.lua", "GShape.lua", "ShapeRender.lua", "init.lua" }
 
local loader = FilesLoader.new(url, file_list)
loader:start()

P.S. For some reason forum engine adds "< a >" tag to url

Safe to remove it.

MoKaLux · December 2019

@rrraptor super cool man

plicatibu · December 2019

@rrraptor Thank you so much. That's what I wanted.

MoKaLux · December 2019

@rrraptor can I put it in the wiki?

rrraptor · December 2019

@MoKaLux you can, but I think its not needed. Existing 2 examples is more than enough to understand how it works. Also, this line can be a bit confusing for newbies:

FilesLoader = Core.class(UrlLoader, function(url,method,headers,body) return nil end)

Personally I dont like big examples, they must be small.

oleg · December 2019

rrraptor said:
@MoKaLux you can, but I think its not needed. Existing 2 examples is more than enough to understand how it works. Also, this line can be a bit confusing for newbies:
FilesLoader = Core.class(UrlLoader, function(url,method,headers,body) return nil end)
Personally I dont like big examples, they must be small.

I agree, the examples should be short.

But you can make a link under the examples-
For more advanced examples.

MoKaLux · December 2019

@rrraptor @oleg I understand your point. I like short examples too but I also like fully fledged classes

that make our life so much easy.
~~I can add it where @oleg mentioned (advanced example) if I can make it work on my side first .~~

plicatibu · December 2019

@rrraptor I made a project using your code.

For some reason, when I try to download files from unsafe URLs (http) everything works fine, but for https URLs it always failed.

I tried 5 different https URLs. When I try to access them directly in my browser I see the file but when I put the URL in script, it doesn't.

For example:

-- XPTO://www.mozilla.org/media/protocol/img/logos/firefox/browser/logo-sm.f2523d97cbe0.png
local url = "XPTO://www.mozilla.org/media/protocol/img/logos/firefox/browser/";
local file_list = { "logo-sm.f2523d97cbe0.png"}

Any idea what may be the problem? I'm using Gideros Player in Windows 10.

Thanks

PS: I replaced https by XPTO to avoid the anchor tag.

rrraptor · December 2019

@plicatibu I have the same question -> http://forum.giderosmobile.com/discussion/7941/get-image-by-url#latest

plicatibu · December 2019

It seems UrlLoader dos not handle HTTPS protocol.

SinisterSoft · December 2019

Are you using windows and ssl isn't working in the player? If so, copy the contents of this rar file to your install folder:

https://www.dropbox.com/s/y8ixf3d03ygf29t/extra_ssl.rar?dl=0

plicatibu · December 2019

Now it worked like a charm.

Thank you.

SinisterSoft · December 2019

I don't think we can distribute those files officially with the main build. Not sure exactly why.

rrraptor · November 2020

SinisterSoft said:
Are you using windows and ssl isn't working in the player? If so, copy the contents of this rar file to your install folder:

https://www.dropbox.com/s/y8ixf3d03ygf29t/extra_ssl.rar?dl=0

Is that still works? I cant get it to work again...

SinisterSoft · November 2020

ssl still works for me - at least the last time I tried.

rrraptor · November 2020

@SinisterSoft

local loader = UrlLoader.new("https:".."//picsum.photos/v2/list")
loader:addEventListener(Event.ERROR, function() print("error") end)
loader:addEventListener(Event.COMPLETE, function() print("done") end)
loader:addEventListener(Event.PROGRESS, function(e) print(e.bytesLoaded,e.bytesTotal) end)

Does not work for me...

SinisterSoft · November 2020

Is this on Windows? If so have you copied the files into the program files/gideros/ folder, etc? They get erased with each fresh update of Gideros.

rrraptor · November 2020

SinisterSoft said:
Is this on Windows?

Yes

SinisterSoft said:
If so have you copied the files into the program files/gideros/ folder, etc?

Yeap, but not into "Program files"

It is in gideros installation folder.

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