mirror of https://github.com/Jackett/Jackett
46 lines
2.0 KiB
C#
46 lines
2.0 KiB
C#
using System;
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using System.Text.RegularExpressions;
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namespace Jackett.Common.Utils
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{
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public static class BrowserUtil
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{
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// When updating these make sure they are not detected by the incapsula bot detection engine (e.g. kickasstorrent indexer)
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public static string ChromeUserAgent => Environment.OSVersion.Platform == PlatformID.Unix ?
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"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36" :
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"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36";
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// This can be used to decode e-mail addresses protected by cloudflare
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public static string DecodeCloudFlareProtectedEmail(string input)
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{
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var key = Convert.ToInt32(input.Substring(0, 2), 16);
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var result = "";
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for (var i = 2; i < input.Length - 1; i += 2)
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{
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var hexChar = input.Substring(i, 2);
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var intChar = Convert.ToInt32(hexChar, 16) ^ key;
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var strChar = Convert.ToChar(intChar);
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result += strChar;
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}
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return result;
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}
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// decode cloudflare protected emails in a HTML document
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public static string DecodeCloudFlareProtectedEmailFromHTML(string html)
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{
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var CFEMailRegex = new Regex("<span class=\"__cf_email__\" data-cfemail=\"(\\w+)\">\\[email protected\\]<\\/span><script data-cfhash='[\\w]+' type=\"text\\/javascript\">.*?<\\/script>", RegexOptions.Compiled);
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var CFEMailRegexMatches = CFEMailRegex.Match(html);
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while (CFEMailRegexMatches.Success)
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{
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var all = CFEMailRegexMatches.Groups[0].Value;
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var cfemail = CFEMailRegexMatches.Groups[1].Value;
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var decoded = DecodeCloudFlareProtectedEmail(cfemail);
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html = html.Replace(all, decoded);
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CFEMailRegexMatches = CFEMailRegexMatches.NextMatch();
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}
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return html;
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}
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}
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}
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