Topic: Apache and SSI - 100% CPU load on some URLs

[EIKA]

Hi all!

I run the latest Apache httpd-2.4.43-win64-VS16.zip under windows. Everything works fine except the one thing. I am (for some reason) forced to use SSI - Server Side Includes - for templates (header, footer) and some other variables like page title.

As stated, all works in general. But not when I use mod_autoindex and click table headers, like Name, Last modified, Size.

For e.g. Name sort automatically generates this URL: http://localhost/?C=N;O=D If I click it, httpd.exe goes to 50-100% load immediately. And there are no any entries in error_log or access_log. Server-status and server-info becomes available. Server doesn't respond to requests at all. As result, I cannot diagnose the root of problem.

If I avoid links like these:

/?C=N;O=D
/?C=M;O=A
/?C=S;O=A

all works just fine. So, all looks like conflict between SSI and parameters like "?", ";" or "=". Or maybe missed real paths that SSI don't like. Something like this.

I want to solve this issue, because I need both - SSI and Sort in mod_autoindex.

Here is example of my SSI call for HTML page <title>:

[EIKA]

Problem is here.

When URL like this http://localhost/directory/!!!_SSI/TITLE.shtml

All works fine.

But when sort applies, location path becomes http://localhost/directory/?C=M;O=A/!!!_SSI/TITLE.shtml

And it causes httpd fail / CPU high load.

Any ideas?

[glsmith]

Looks to me like you are wanting a pretty looking custom indexes.

mod_autoindex is about all you need. Study the documentation:
https://httpd.apache.org/docs/2.4/mod/mod_autoindex.html

Some examples from dirt simple to complex to study:
https://github.com/martinlb/PrettyIndex
https://github.com/thirtyjin/Apache-Indexes
https://github.com/Darnel-K/NSSTFAI

[EIKA]

Thanks for your reply, but any mod_autoindex stylers will not help me to solve 100% CPU load issue caused by SSI. I cannot use any of stylers because even one click to Sort will cause httpd fail.

[glsmith]

I might have the advantage of using autoindex long before it had all the fancy style options in it.

I'm thinking your doing something like below in a html file, are you?
Note: The Include to /autoindexed_directory is the autoindexed directory by Apache.

[Flanker27SK]

Thanks, I ran into a similar issue, as you guessed with the original poster's description, that stemmed from the use of excessively "fancy" options. I started using Apache so that I can create a site that will look better than a random Wordpress blog (and because I need to put music, movies, products, images and stories on that site, all from different universes and styles), so I must have overdone it with the functions...

[EIKA]

I ended up SSI story because I was unable to solve this problem completely. I decided to refuse SSI all and wiped it out.