Mehmet Kent

Mehmet Kent

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Base64 to Html Decode

Feb 2 2023 10:08 AM

I want to convert the base64 data I have to html type, when I do this conversion, the html file comes out as corrupted and I cannot do scraping with Agility pack. But when I do the conversion manually with an online tool on the internet, the html file comes up properly and I can scrape. My codes are as follows. Please help 

string base64Data = "//Base64 in here";
byte[] decodedBytes = Convert.FromBase64String(base64Data);
string decodedText = Encoding.UTF8.GetString(decodedBytes);
string desktopPath = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory);
string filePath = Path.Combine(desktopPath, "decoded_data.html");
File.WriteAllText(filePath, decodedText);

filePath = Path.Combine(desktopPath, "decoded_data.html");
HtmlWeb htmlWeb = new HtmlWeb();
HtmlDocument doc = htmlWeb.Load(filePath);
HtmlNodeCollection nodes = doc.DocumentNode.SelectNodes("//body//table[1]//tr[2]//td[2]//tr[3]//td[2]");
foreach (HtmlNode node in nodes)
{
    Console.WriteLine(node.InnerText);
}

 


Answers (4)