UNC 目录格式检测C#代码

「爱情、让人受尽委屈。」 2021-06-26 16:06 297阅读 0赞

/// <summary>
           /// if path is UNC( Universal Naming Convention) path return or return false.
           /// formatter：\\servername\sharename
           /// </summary>
           /// <param name="path">path</param>
           /// <returns></returns>
           public static bool IsUNCPath(string path)
           { 
               if (!path.StartsWith(@"\\"))
               { 
                   return false;
               }
               var serverNameRejectCharacters = @"`~!@#$%^&*()=+_[]{}\|;:.',<>/?";
               var serverNameRejectCharactersArr = serverNameRejectCharacters.ToList();
               serverNameRejectCharactersArr.Add('\"');
               var folderNameRejectCharacters = @"/:*?<>|";
               var folderNameRejectCharactersArr = folderNameRejectCharacters.ToList();
               folderNameRejectCharactersArr.Add('\"');
               if (path.Length < 5)
               { 
                   return false;
               }
               else
               { 
                   // third '\' index in path
                   var third = path.Remove(0, 2).IndexOf('\\');
                   var serverName = path.Substring(2, third);
                   for (int i = 0; i < serverName.Length; i++)
                   { 
                       for (int j = 0; j < serverNameRejectCharactersArr.Count; j++)
                       { 
                           if (serverName[i] == serverNameRejectCharactersArr[j])
                           { 
                               return false;
                           }
                       }
     
                   }
                   var pathes = path.Remove(0, 2 + serverName.Length);
                   if (pathes.Contains(@"\\")||pathes.Length<=1)
                   { 
                       return false;
                   }
                   else
                   { 
                       for (int i = 0; i < pathes.Length; i++)
                       { 
                           for (int j = 0; j < folderNameRejectCharactersArr.Count; j++)
                           { 
                               if (pathes[i] == folderNameRejectCharactersArr[j])
                               { 
                                   return false;
                               }
                           }
                       }
                   }
     
               }
               return true;
           }