Cache works, but needs a lot more work.

src/probe/vem_ringde.rs

@@ -1,10 +1,21 @@
-use scraper::{Html, Selector};
-
+use crate::context::Context;
 use crate::probe::Probe;
 
 // http://vemringde.se/?q={}
 pub struct VemRingde;
 
 impl Probe for VemRingde {
-    fn search(&mut self, _: &str) {}
+    fn search(&mut self, ctx: &mut Context, number: &str) {
+        let body = if let Some(cache) = ctx.cache_get("vem_ringde", &number) {
+            String::from_utf8(cache.data)
+                .unwrap()
+        } else {
+            reqwest::get(&format!("http://vemringde.se/?q={}", number))
+                .unwrap()
+                .text()
+                .unwrap()
+        };
+
+        ctx.cache_set("vem_ringde", &number, body.as_bytes()).expect("wut?! why not?!");
+    }
 }