Tout le monde n'a pas accès à server.MapPath en raison de changements de backend ou de framework, et il existe de nombreuses façons de le faire, l'une d'entre elles pouvant être la suivante
public enum FileLocation
{
NotSet,
Disk,
Resource,
}
private static readonly string[] FileExtenstions = new[] {
".js"
,".ts"
,".vue"
,".css"
,".jpg"
,".png"
,".gif"
,".ico"
,".svg"
,".ttf"
,".eot"
,".ttf"
,".woff"
,".woff2"
,".mp4"
,".mp3"
,".emf"
};
public FileLocation IsMappedTo(Uri uri)
{
if (uri is null)
{
throw new ArgumentNullException(nameof(uri));
}
//make sure we support .net default URI contract
if (uri.IsFile)
return FileLocation.Disk;
//now assume you are looking in a web application
var path = uri.AbsolutePath;
if (path.Length == 0 || path.Equals("/",StringComparison.Ordinal) || path.Length< FileExtenstions.Min(s=>s.Length))
return FileLocation.NotSet;
//get the directory normally one would use IWebHostEnvironment.ContentRootPath different versions .net will have other methods
var dir = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot");
//get all resources names from the assembly hosting this class out side if the loop from this assembly you can also use
//you can also use GetManifestResourceNames() to use the web application's assembly
var resourceNames = new HashSet<string>(this.GetType().Assembly.GetManifestResourceNames());
var entryAssembly = Assembly.GetEntryAssembly();
if (entryAssembly != null && entryAssembly != this.GetType().Assembly)
{
foreach (var entry in entryAssembly.GetManifestResourceNames())
{
if (string.IsNullOrEmpty(entry))
resourceNames.Add(entry);
}
}
for (var i = 0; i < FileExtenstions.Length; i++)
{
if (FileExtenstions[i].Equals(path[FileExtenstions[i].Length..], StringComparison.OrdinalIgnoreCase) || path.Contains(FileExtenstions[i], StringComparison.OrdinalIgnoreCase))
{
//exists on disk
if (File.Exists(Path.Combine(dir, path.Replace("/", @"\", StringComparison.Ordinal))))
return FileLocation.Disk;
//has a file as an embedded resource with the same name (ignores the path) so you might have duplicates names
if (resourceNames.Any(a => a.EndsWith(path.Split('/')[^1], StringComparison.OrdinalIgnoreCase)))
return FileLocation.Resource;
}
}
return FileLocation.NotSet;
}
après ça, tu fais tout simplement :
switch (IsMappedTo(url))
{
case FileLocation.NotSet:
break;
case FileLocation.Disk:
break;
case FileLocation.Resource:
break;
}
0 votes
Il aurait peut-être été plus logique pour moi d'utiliser un chemin d'accès URI relatif comme exemple.