Add handling of 307 and 308 redirects

Fixes #9

src/client.rs

@@ -198,24 +198,32 @@ impl<'a> RequestBuilder<'a> {
 
                 try!(req.send())
             };
-            body.take();
 
-            match res.status {
+            let should_redirect = match res.status {
                 StatusCode::MovedPermanently |
                 StatusCode::Found |
                 StatusCode::SeeOther => {
+                    body = None;
+                    match method {
+                        Method::Get | Method::Head => {},
+                        _ => {
+                            method = Method::Get;
+                        }
+                    }
+                    true
+                },
+                StatusCode::TemporaryRedirect |
+                StatusCode::PermanentRedirect => true,
+                _ => false,
+            };
 
+            if should_redirect {
                 //TODO: turn this into self.redirect_policy.check()
                 if redirect_count > 10 {
                     return Err(::Error::TooManyRedirects);
                 }
                 redirect_count += 1;
 
-                    method = match method {
-                        Method::Post | Method::Put => Method::Get,
-                        m => m
-                    };
-
                 headers.set(Referer(url.to_string()));
 
                 let loc = {
@@ -239,19 +247,16 @@ impl<'a> RequestBuilder<'a> {
                     }
                 };
 
-                    debug!("redirecting to '{}'", url);
+                debug!("redirecting to {:?} '{}'", method, url);
 
                 //TODO: removeSensitiveHeaders(&mut headers, &url);
-
-                },
-                _ => {
+            } else {
                 return Ok(Response {
                     inner: res
                 });
             }
         }
     }
-    }
 }
 
 /// A Response to a submitted `Request`.