handle disconnects

actix-multipart/CHANGES.md

@@ -1,12 +1,16 @@
 # Changes
 
+## [0.1.1] - 2019-05-25
+
+* Fix disconnect handling #834
+
 ## [0.1.0] - 2019-05-18
 
 * Release
 
 ## [0.1.0-beta.4] - 2019-05-12
 
-* Handle cancellation of uploads #834 #736
+* Handle cancellation of uploads #736
 
 * Upgrade to actix-web 1.0.0-beta.4
 

actix-multipart/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "actix-multipart"
-version = "0.1.0"
+version = "0.1.1"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Multipart support for actix web framework."
 readme = "README.md"

actix-multipart/src/server.rs

@@ -128,7 +128,7 @@ impl InnerMultipart {
     fn read_headers(
         payload: &mut PayloadBuffer,
     ) -> Result<Option<HeaderMap>, MultipartError> {
-        match payload.read_until(b"\r\n\r\n") {
+        match payload.read_until(b"\r\n\r\n")? {
             None => {
                 if payload.eof {
                     Err(MultipartError::Incomplete)
@@ -167,7 +167,7 @@ impl InnerMultipart {
         boundary: &str,
     ) -> Result<Option<bool>, MultipartError> {
         // TODO: need to read epilogue
-        match payload.readline() {
+        match payload.readline()? {
             None => {
                 if payload.eof {
                     Ok(Some(true))
@@ -200,7 +200,7 @@ impl InnerMultipart {
     ) -> Result<Option<bool>, MultipartError> {
         let mut eof = false;
         loop {
-            match payload.readline() {
+            match payload.readline()? {
                 Some(chunk) => {
                     if chunk.is_empty() {
                         return Err(MultipartError::Boundary);
@@ -481,7 +481,7 @@ impl InnerField {
         if *size == 0 {
             Ok(Async::Ready(None))
         } else {
-            match payload.read_max(*size) {
+            match payload.read_max(*size)? {
                 Some(mut chunk) => {
                     let len = cmp::min(chunk.len() as u64, *size);
                     *size -= len;
@@ -512,7 +512,11 @@ impl InnerField {
 
         let len = payload.buf.len();
         if len == 0 {
-            return Ok(Async::NotReady);
+            return if payload.eof {
+                Err(MultipartError::Incomplete)
+            } else {
+                Ok(Async::NotReady)
+            };
         }
 
         // check boundary
@@ -597,7 +601,7 @@ impl InnerField {
                 }
             }
 
-            match payload.readline() {
+            match payload.readline()? {
                 None => Async::Ready(None),
                 Some(line) => {
                     if line.as_ref() != b"\r\n" {
@@ -749,23 +753,31 @@ impl PayloadBuffer {
         }
     }
 
-    fn read_max(&mut self, size: u64) -> Option<Bytes> {
+    fn read_max(&mut self, size: u64) -> Result<Option<Bytes>, MultipartError> {
         if !self.buf.is_empty() {
             let size = std::cmp::min(self.buf.len() as u64, size) as usize;
-            Some(self.buf.split_to(size).freeze())
+            Ok(Some(self.buf.split_to(size).freeze()))
+        } else if self.eof {
+            Err(MultipartError::Incomplete)
         } else {
-            None
+            Ok(None)
         }
     }
 
     /// Read until specified ending
-    pub fn read_until(&mut self, line: &[u8]) -> Option<Bytes> {
-        twoway::find_bytes(&self.buf, line)
-            .map(|idx| self.buf.split_to(idx + line.len()).freeze())
+    pub fn read_until(&mut self, line: &[u8]) -> Result<Option<Bytes>, MultipartError> {
+        let res = twoway::find_bytes(&self.buf, line)
+            .map(|idx| self.buf.split_to(idx + line.len()).freeze());
+
+        if res.is_none() && self.eof {
+            Err(MultipartError::Incomplete)
+        } else {
+            Ok(res)
+        }
     }
 
     /// Read bytes until new line delimiter
-    pub fn readline(&mut self) -> Option<Bytes> {
+    pub fn readline(&mut self) -> Result<Option<Bytes>, MultipartError> {
         self.read_until(b"\n")
     }
 
@@ -991,7 +1003,7 @@ mod tests {
 
             assert_eq!(payload.buf.len(), 0);
             payload.poll_stream().unwrap();
-            assert_eq!(None, payload.read_max(1));
+            assert_eq!(None, payload.read_max(1).unwrap());
         })
     }
 
@@ -1001,14 +1013,14 @@ mod tests {
             let (mut sender, payload) = Payload::create(false);
             let mut payload = PayloadBuffer::new(payload);
 
-            assert_eq!(None, payload.read_max(4));
+            assert_eq!(None, payload.read_max(4).unwrap());
             sender.feed_data(Bytes::from("data"));
             sender.feed_eof();
             payload.poll_stream().unwrap();
 
-            assert_eq!(Some(Bytes::from("data")), payload.read_max(4));
+            assert_eq!(Some(Bytes::from("data")), payload.read_max(4).unwrap());
             assert_eq!(payload.buf.len(), 0);
-            assert_eq!(None, payload.read_max(1));
+            assert!(payload.read_max(1).is_err());
             assert!(payload.eof);
         })
     }
@@ -1018,7 +1030,7 @@ mod tests {
         run_on(|| {
             let (mut sender, payload) = Payload::create(false);
             let mut payload = PayloadBuffer::new(payload);
-            assert_eq!(None, payload.read_max(1));
+            assert_eq!(None, payload.read_max(1).unwrap());
             sender.set_error(PayloadError::Incomplete(None));
             payload.poll_stream().err().unwrap();
         })
@@ -1035,10 +1047,10 @@ mod tests {
             payload.poll_stream().unwrap();
             assert_eq!(payload.buf.len(), 10);
 
-            assert_eq!(Some(Bytes::from("line1")), payload.read_max(5));
+            assert_eq!(Some(Bytes::from("line1")), payload.read_max(5).unwrap());
             assert_eq!(payload.buf.len(), 5);
 
-            assert_eq!(Some(Bytes::from("line2")), payload.read_max(5));
+            assert_eq!(Some(Bytes::from("line2")), payload.read_max(5).unwrap());
             assert_eq!(payload.buf.len(), 0);
         })
     }
@@ -1069,16 +1081,22 @@ mod tests {
             let (mut sender, payload) = Payload::create(false);
             let mut payload = PayloadBuffer::new(payload);
 
-            assert_eq!(None, payload.read_until(b"ne"));
+            assert_eq!(None, payload.read_until(b"ne").unwrap());
 
             sender.feed_data(Bytes::from("line1"));
             sender.feed_data(Bytes::from("line2"));
             payload.poll_stream().unwrap();
 
-            assert_eq!(Some(Bytes::from("line")), payload.read_until(b"ne"));
+            assert_eq!(
+                Some(Bytes::from("line")),
+                payload.read_until(b"ne").unwrap()
+            );
             assert_eq!(payload.buf.len(), 6);
 
-            assert_eq!(Some(Bytes::from("1line2")), payload.read_until(b"2"));
+            assert_eq!(
+                Some(Bytes::from("1line2")),
+                payload.read_until(b"2").unwrap()
+            );
             assert_eq!(payload.buf.len(), 0);
         })
     }