文件或文件夹名中有"/"时，部分webdav客户端无法访问此文件或文件夹所在的目录

[supermayx]

问题描述

文件或文件夹名中有"/"时，部分webdav客户端无法访问此文件或文件夹所在的目录。
不算是本程序的bug，而是阿里云盘自身的不规范所致，希望可以帮到遇到该问题的朋友。

重现步骤

阿里云盘对路径中"/"符号不作限制，部署docker容器之后，从chrome访问没有问题，但是用infuse或nplayer连接时，无法进入所在目录，排查修改之后没有问题。
新建了几个测试目录获得日志中所例结果。
目录结构如下：
./test
--/test1
---/test1_0
--/test2/0
---/0
注意新建文件夹时，若直接命名为"test2/0"，会同时建立/test2及其下的子目录/0，但是修改/test2的文件夹名为“test2/0"可得此结果。
正常操作下，一般不会出现路径中含有"/"的情况，因为常见系统均不允许，但在云盘上改名时可能出现。

版本

1.0.0

运行平台

Docker，nplayer，infuse

日志

2021-12-06 14:23:58.360 INFO 1 --- [nio-8080-exec-3] c.g.z.w.s.AliYunDriverFileSystemStore : getResourceLength: /test/test2,
2021-12-06 14:23:58.364 INFO 1 --- [nio-8080-exec-3] c.g.z.w.s.AliYunDriverFileSystemStore : getStoredObject: /test/test2,
2021-12-06 14:23:58.364 INFO 1 --- [nio-8080-exec-3] c.g.z.w.s.AliYunDriverFileSystemStore : getResourceLength: /test/test2,
2021-12-06 14:23:58.365 INFO 1 --- [nio-8080-exec-3] c.g.z.w.s.AliYunDriverFileSystemStore : getResourceLength: /test/test2,
2021-12-06 14:23:58.365 INFO 1 --- [nio-8080-exec-3] c.g.z.w.s.AliYunDriverFileSystemStore : getChildrenNames: /test/test2,
2021-12-06 14:23:58.365 INFO 1 --- [nio-8080-exec-3] c.g.z.w.s.AliYunDriverFileSystemStore : getStoredObject: /test/test2/test2/0
2021-12-06 14:23:58.365 INFO 1 --- [nio-8080-exec-3] c.g.z.w.s.AliYunDriverFileSystemStore : getStoredObject: /test/test2/test2/0,
2021-12-06 14:23:58.369 ERROR 1 --- [nio-8080-exec-3] net.sf.webdav.WebDavServletBean : Exception: java.lang.NullPointerException,
at net.sf.webdav.methods.DoPropfind.parseProperties(DoPropfind.java:256),
at net.sf.webdav.methods.DoPropfind.recursiveParseProperties(DoPropfind.java:212),
at net.sf.webdav.methods.DoPropfind.recursiveParseProperties(DoPropfind.java:227),
at net.sf.webdav.methods.DoPropfind.execute(DoPropfind.java:165),
at net.sf.webdav.WebDavServletBean.service(WebDavServletBean.java:131),
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733),
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166),
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231),
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53),
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193),
at com.github.zxbu.webdavteambition.filter.ErrorFilter.doFilterInternal(ErrorFilter.java:39),
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119),
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100),
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93),
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201),
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202),
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97),
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:667),
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143),
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78),
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65),
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128),
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61),
at java.base/java.lang.Thread.run(Thread.java:829),
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628),
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49),
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1597),
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:888),
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374),
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343),
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)