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POURL-encoded slash in URL
 

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    <p>My Map is:</p> <pre><code>routes.MapRoute( "Default", // Route name "{controller}/{action}/{id}", // URL with params new { controller = "Home", action = "Index", id = "" } // Param defaults ); </code></pre> <p>If I use the URL <code>http://localhost:5000/Home/About/100%2f200</code> there is no matching route. I change the URL to <code>http://localhost:5000/Home/About/100</code> then the route is matched again.</p> <p>Is there any easy way to work with parameters that contain slashes? Other escaped values (space <code>%20</code>) seem to work.</p> <p>EDIT:</p> <p>To encode Base64 works for me. It makes the URL ugly, but that's OK for now.</p> <pre><code>public class UrlEncoder { public string URLDecode(string decode) { if (decode == null) return null; if (decode.StartsWith("=")) { return FromBase64(decode.TrimStart('=')); } else { return HttpUtility.UrlDecode( decode) ; } } public string UrlEncode(string encode) { if (encode == null) return null; string encoded = HttpUtility.PathEncode(encode); if (encoded.Replace("%20", "") == encode.Replace(" ", "")) { return encoded; } else { return "=" + ToBase64(encode); } } public string ToBase64(string encode) { Byte[] btByteArray = null; UTF8Encoding encoding = new UTF8Encoding(); btByteArray = encoding.GetBytes(encode); string sResult = System.Convert.ToBase64String(btByteArray, 0, btByteArray.Length); sResult = sResult.Replace("+", "-").Replace("/", "_"); return sResult; } public string FromBase64(string decode) { decode = decode.Replace("-", "+").Replace("_", "/"); UTF8Encoding encoding = new UTF8Encoding(); return encoding.GetString(Convert.FromBase64String(decode)); } } </code></pre> <p>EDIT1:</p> <p>At the end it turned out that the best way was to save a nicely formated string for each item I need to select. Thats much better because now I only encode values and never decode them. All special characters become "-". A lot of my db-tables now have this additional column "URL". The data is pretty stable, thats why I can go this way. I can even check, if the data in "URL" is unique.</p> <p>EDIT2:</p> <p>Also watch out for space character. It looks ok on VS integrated webserver but is different on iis7 <a href="https://stackoverflow.com/questions/1651711/properly-url-encode-space-character">Properly url encode space character</a></p>
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    1. USMathias F
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    1. COYou could also come up with some other way to mask the slash, say, replace it with something else by convention. I know. That's ugly as well, but at least the URL stays somewhat readable.
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      1. USTomalak
    2. COI noticed that forward slashes and dots give me errors. I made a quick helper that replaces them with "-slash-" and "-dot-". Wonder why the regular Url.Encode/Decode don't work something out. Also, why would an escaped character be giving any errors?
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      1. USBoris Callens
    3. COThis isn't an encoding issue with routing; it's apparently a bug in the .NET Uri class. According to [my reading of] the URI RFC, encoded slashes in the path should not be considered segment separators. MVC Routing doesn't have a chance to get it right because the Uri class (incorrectly) decodes the slashes before routing even sees it. See section 2.2 and 2.4 of the RFC. http://labs.apache.org/webarch/uri/rfc/rfc3986.html#reserved
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      1. USAndrew Arnott
 

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