https://www.mcbbs.net/thread-1034847-1-1.html
我的一个搬运帖子，点击下载地址会提示含有非法字符跳转失败，复制出来的地址是https://www.mcbbs.net/plugin.php ... 2520%281.8.9%29.jar
会出现
Discuz! System Error您当前的访问请求当中含有非法字符，已经被系统拒绝
PHP Debug

[Line: 0021]plugin.php(discuz_application->init) [Line: 0071]source/class/discuz/discuz_application.php(discuz_application->_init_misc) [Line: 0558]source/class/discuz/discuz_application.php(discuz_application->_xss_check) [Line: 0374]source/class/discuz/discuz_application.php(system_error) [Line: 0023]source/function/function_core.php(discuz_error::system_error) [Line: 0024]source/class/discuz/discuz_error.php(discuz_error::debug_backtrace)

然而直接复制我刚刚更新上去的链接可以正常下载
@gamerteam

本帖最后由 言灵乀Poison 于 2020-5-13 18:43 编辑

测试了一下 似乎是括号的问题？

这是楼主提供的链接，无法访问
https://www.mcbbs.net/plugin.php?id=link_redirect&target=https%3A%2F%2Fstatic.sk1er.club%2Frepo%2Fmods%2Fkeystrokesmod%2F8.0.2%2F1.8.9%2FKeystrokes-8.0.2%2520%281.8.9%29.jar
这是去掉末尾的%28和%29后的链接，可以正常跳转(当然跳转后肯定是404)
https://www.mcbbs.net/plugin.php?id=link_redirect&target=https%3A%2F%2Fstatic.sk1er.club%2Frepo%2Fmods%2Fkeystrokesmod%2F8.0.2%2F1.8.9%2FKeystrokes-8.0.2%25201.8.9.jar
应该是防火墙把过滤了
https://www.mcbbs.net/plugin.php?id=link_redirect&target=%28

问题就在于，我提供的链接是正常访问的