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C#: How to save files from a URL with unknown size possibly using CefSharp

Hi
I've recently been introduced to CefSharp

Given a uri and a local file path how do I save a file?

It makes sense to use CefSharp to save the file has it should handle any user credentials
In the examples there is a DownloadHandler.cs I've not found any tutorials on how to use it

I've been using the code bellow in other applications form here but that requires you to know how big the file is prior to download which isin't often the case

Alternatively how do I amend this so it's not governed by a random byte size
admittedly I could change

 using (BinaryReader br = new BinaryReader(stream))
            {
                content = br.ReadBytes(5000000);
                br.Close();
            }

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            int MaxInt = int.MaxValue;
            using (BinaryReader br = new BinaryReader(stream))
            {
                content = br.ReadBytes(MaxInt);
                br.Close();
            }

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but that seems ridicules not knowing if a 100kb jpg is attempting to be saved to a 2GB + file

        private static void save_file_from_url(string url, string file_name)
        {
            byte[] content;
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            WebResponse response = request.GetResponse();



            Stream stream = response.GetResponseStream();

            using (BinaryReader br = new BinaryReader(stream))
            {
                content = br.ReadBytes(5000000);
                br.Close();
            }
            response.Close();

            FileStream fs = new FileStream(file_name, FileMode.Create);
            BinaryWriter bw = new BinaryWriter(fs);
            try
            {
                bw.Write(content);
            }
            finally
            {
                fs.Close();
                bw.Close();
            }
        }

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Chinmay Patel

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trevor1940

ASKER

I use webclient exclusively for most of my download scenarios

Can you show me?

Chinmay Patel

Honestly, I have just two lines

WebClient client = new WebClient();
                        client.DownloadFileAsync(new Uri(this.downloadQueue[i].OriginalUrl), string.Concat(targetDirectory, "\\", this.downloadQueue[i].Title, ".", Path.GetExtension(this.downloadQueue[i].OriginalUrl)));

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The major part of the code is just building the both source and destination paths.

This code downloads thousands of files from Flickr - some of them go up to 1 GB.

trevor1940

ASKER

Thanx

I'm building both source and destination paths elsewhere

So whats the difference between the 2 lines below?

        private void save_file_from_url_EE(string href, string localFile)
        {
            WebClient client = new WebClient();
            client.DownloadFileAsync(new Uri( href), localFile);
            client.DownloadFile(new Uri(href), localFile);
        }

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Chinmay Patel

The async call as the name suggests will execute asynchronously. Keeping your app responsive and downloading the file in background while your app performs other functions.

trevor1940

ASKER

Thanx