Make a simple FastCGI echo server

Building on the example from the 'fastcgi' crate:
https://docs.rs/fastcgi/1.0.0/fastcgi/index.html

prints all request parameters and the request `Stdin`. Post parameters
are included in the stdin buffer.

1 files changed, 22 insertions, 1 deletions

diff --git a/license-generator/src/main.rs b/license-generator/src/main.rs
index e7a11a9..fab9eb1 100644
--- a/license-generator/src/main.rs
+++ b/license-generator/src/main.rs
@@ -1,3 +1,24 @@
+extern crate fastcgi;
+
+use std::io::{Read, Write};
+
 fn main() {
-    println!("Hello, world!");
+    fastcgi::run(|mut req| {
+        write!(&mut req.stdout(), "Content-Type: text/plain\n\nHello, world!")
+            .unwrap_or(());
+
+        let mut params = String::new();
+        for (key, val) in req.params() {
+            params.push_str(format!("{}: {}\n", key, val).as_str());
+        }
+
+        write!(&mut req.stdout(), "\n\n{}", params)
+            .unwrap_or(());
+
+        let mut stdin = String::new();
+        req.stdin().read_to_string(&mut stdin).unwrap();
+
+        write!(&mut req.stdout(), "\n\nstdin: {}\n", stdin)
+            .unwrap_or(());
+    });
 }