From 953a0d4e4ab1db724faea5b9196e391414e34920 Mon Sep 17 00:00:00 2001
From: Nikolay Kim <fafhrd91@gmail.com>
Date: Tue, 15 May 2018 09:29:59 -0700
Subject: [PATCH] add test case for #222

---
 CHANGES.md       |   5 +++
 src/server/h1.rs | 101 ++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 105 insertions(+), 1 deletion(-)

diff --git a/CHANGES.md b/CHANGES.md
index f0f7cd7ef..a8c4e1e50 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,10 @@
 # Changes
 
+## 0.6.5 (2018-05-15)
+
+* Fix error handling during request decoding #222
+
+
 ## 0.6.4 (2018-05-11)
 
 * Fix segfault in ServerSettings::get_response_builder()
diff --git a/src/server/h1.rs b/src/server/h1.rs
index b6de5cc53..933ce0a80 100644
--- a/src/server/h1.rs
+++ b/src/server/h1.rs
@@ -403,8 +403,12 @@ where
 
 #[cfg(test)]
 mod tests {
-    use bytes::{Bytes, BytesMut};
+    use std::net::Shutdown;
+    use std::{cmp, time};
+
+    use bytes::{Buf, Bytes, BytesMut};
     use http::{Method, Version};
+    use tokio_io::{AsyncRead, AsyncWrite};
 
     use super::*;
     use application::HttpApplication;
@@ -468,6 +472,101 @@ mod tests {
         }};
     }
 
+    struct Buffer {
+        buf: Bytes,
+        err: Option<io::Error>,
+    }
+
+    impl Buffer {
+        fn new(data: &'static str) -> Buffer {
+            Buffer {
+                buf: Bytes::from(data),
+                err: None,
+            }
+        }
+        fn feed_data(&mut self, data: &'static str) {
+            let mut b = BytesMut::from(self.buf.as_ref());
+            b.extend(data.as_bytes());
+            self.buf = b.take().freeze();
+        }
+    }
+
+    impl AsyncRead for Buffer {}
+    impl io::Read for Buffer {
+        fn read(&mut self, dst: &mut [u8]) -> Result<usize, io::Error> {
+            if self.buf.is_empty() {
+                if self.err.is_some() {
+                    Err(self.err.take().unwrap())
+                } else {
+                    Err(io::Error::new(io::ErrorKind::WouldBlock, ""))
+                }
+            } else {
+                let size = cmp::min(self.buf.len(), dst.len());
+                let b = self.buf.split_to(size);
+                dst[..size].copy_from_slice(&b);
+                Ok(size)
+            }
+        }
+    }
+
+    impl IoStream for Buffer {
+        fn shutdown(&mut self, _: Shutdown) -> io::Result<()> {
+            Ok(())
+        }
+        fn set_nodelay(&mut self, _: bool) -> io::Result<()> {
+            Ok(())
+        }
+        fn set_linger(&mut self, _: Option<time::Duration>) -> io::Result<()> {
+            Ok(())
+        }
+    }
+    impl io::Write for Buffer {
+        fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
+            Ok(buf.len())
+        }
+        fn flush(&mut self) -> io::Result<()> {
+            Ok(())
+        }
+    }
+    impl AsyncWrite for Buffer {
+        fn shutdown(&mut self) -> Poll<(), io::Error> {
+            Ok(Async::Ready(()))
+        }
+        fn write_buf<B: Buf>(&mut self, _: &mut B) -> Poll<usize, io::Error> {
+            Ok(Async::NotReady)
+        }
+    }
+
+    #[test]
+    fn test_req_parse() {
+        let buf = Buffer::new("GET /test HTTP/1.1\r\n\r\n");
+        let readbuf = BytesMut::new();
+        let settings = Rc::new(WorkerSettings::<HttpApplication>::new(
+            Vec::new(),
+            KeepAlive::Os,
+        ));
+
+        let mut h1 = Http1::new(Rc::clone(&settings), buf, None, readbuf);
+        h1.poll_io();
+        h1.parse();
+        assert_eq!(h1.tasks.len(), 1);
+    }
+
+    #[test]
+    fn test_req_parse_err() {
+        let buf = Buffer::new("GET /test HTTP/1\r\n\r\n");
+        let readbuf = BytesMut::new();
+        let settings = Rc::new(WorkerSettings::<HttpApplication>::new(
+            Vec::new(),
+            KeepAlive::Os,
+        ));
+
+        let mut h1 = Http1::new(Rc::clone(&settings), buf, None, readbuf);
+        h1.poll_io();
+        h1.parse();
+        assert!(h1.flags.contains(Flags::ERROR));
+    }
+
     #[test]
     fn test_parse() {
         let mut buf = BytesMut::from("GET /test HTTP/1.1\r\n\r\n");