This project is an example of how to use FastCGI with nginx and C to run
jhead on an uploaded file and return the results.
This application makes use of some library functions from libgreen
which is a small collection of useful C and C++ functions and algorithms.
The application requires the fcgi library and header files. These should
be available in most distributions and in Alpine it is fcgi-dev. Also
a local instance of some fcgi compatible server will need to be configured
for nginx see the settings in nginx/nginx.conf.template for an example.
make appsrc/mdclean
spawn-fcgi -U nginx -G nginx -s /run/spawn-fcgi/mdclean.sock-1 -n appsrc/mdclean
The Dockerfile included in the distribution includes a build step which
allows the project to be compiled and the image created in a single step.
docker build --tag mdclean:0.0.3 --file Dockerfile .
docker run --rm -i -t -p 8080:8080 -e PORT=8080 mdclean:0.0.3
Vist the web page containing the form allowing a file to be uploaded:
http://127.0.0.1/mdclean/posttest
The host 127.0.0.1 and the first part of the path should be altered to
fit your specific infrastructure and nginx configuration.
Select a small file file and click the Upload button. Your browser
should then begin a file download, this file is the file that you selected
to upload. In version 0.0.3 (this version) the file will simply be sent
back but the application will hint to the browser that the file should be
downloaded. The hint is through a header Content-Disposition see
mdclean.c#process_posted_data.