content: package com.baidu.ueditor.upload;
  
  import com.baidu.ueditor.PathFormat;
  import com.baidu.ueditor.define.AppInfo;
  import com.baidu.ueditor.define.BaseState;
  import com.baidu.ueditor.define.FileType;
  import com.baidu.ueditor.define.State;
  
  import java.util.Map;
  
  import org.apache.commons.codec.binary.Base64;
  
  public final class Base64Uploader {
  
  	public static State save(String content, Map<String, Object> conf) {
  		
  		byte[] data = decode(content);
  
  		long maxSize = ((Long) conf.get("maxSize")).longValue();
  
  		if (!validSize(data, maxSize)) {
  			return new BaseState(false, AppInfo.MAX_SIZE);
  		}
  
  		String suffix = FileType.getSuffix("JPG");
  
  		String savePath = PathFormat.parse((String) conf.get("savePath"),
  				(String) conf.get("filename"));
  		
  		savePath = savePath + suffix;
  		String physicalPath = (String) conf.get("rootPath") + savePath;
  
  		State storageState = StorageManager.saveBinaryFile(data, physicalPath);
  
  		if (storageState.isSuccess()) {
  			storageState.putInfo("url", PathFormat.format(savePath));
  			storageState.putInfo("type", suffix);
  			storageState.putInfo("original", "");
  		}
  
  		return storageState;
  	}
  
  	private static byte[] decode(String content) {
  		return Base64.decodeBase64(content);
  	}
  
  	private static boolean validSize(byte[] data, long length) {
  		return data.length <= length;
  	}
  	
  }