Rather than setting the status to 503 directly from the timeout
interceptor which no longer seems to work reliably with Servlet
containers like Jetty even performing an additional ERROR dispatch back
to the original URL, we know rather set the DeferredResult to an
AsyncTimeoutException, which results in a dispatch and standard
handling within Spring MVC. This should be a more reliable way of
dealing with timeouts.
Issue: SPR-14669
Since SPR-14522, the web reactive framework supports checkNotModified
features. This commit aligns the existing MVC infrastructure with
web reactive's behavior.
Code duplication has been removed from `HttpEntityMethodProcessor`
but the Servlet 2.5 baseline is still respected.
Issue: SPR-14659
Cherry-picked from: cc5300c4d5
HttpEntityMethodProcessor should not throw IllegalArgumentExceptions for
invalid If-None-Match headers.
For those cases, this commit makes sure that both
`HttpEntityMethodProcessor` and `ServletWebRequest` have a consistent
behavior and stop processing the request as conditional and leave the
handler handle it.
Issue: SPR-14559
This commit adds support for HTTP header field parameters encoding, as
described in RFC5987.
Note that the default implementation still relies on US-ASCII encoding,
as the latest rfc7230 Section 3.2.4 says that:
> Newly defined header fields SHOULD limit their field values to
US-ASCII octets
Issue: SPR-14547
Cherry-picked from: f2faf84f31
This commit adds a `ClientHttpRequestInterceptor` that applies a BASIC
authorization header for each request.
It can be used as follows:
```
BasicAuthorizationInterceptor basicAuthorization =
new BasicAuthorizationInterceptor("user", "secret");
restTemplate.getInterceptors().add(basicAuthorization);
```
Issue: SPR-14412
Prior to this commit, setting the `forceEncoding` option would force
encoding on both requests and responses.
This commit adds two new setters and a new constructor to differentiate
both options: forcing the encoding on the request and/or on the
response.
You can now define this filter programmatically using those options or
update your servlet XML configuration like:
```
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>o.sf.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceRequestEncoding</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>forceResponseEncoding</param-name>
<param-value>false</param-value>
</init-param>
</filter>
```
Issue: SPR-14240
Prior to this commit, the `ResourceHttpMessageConverter` would support
all HTTP Range requests and `MethodProcessors` would "wrap" controller
handler return values with a `HttpRangeResource` to support that use
case in Controllers.
This commit refactors that support in several ways:
* a new ResourceRegion class has been introduced
* a new, separate, ResourceRegionHttpMessageConverter handles the HTTP
range use cases when serving static resources with the
ResourceHttpRequestHandler
* the support of HTTP range requests on Controller handlers has been
removed until a better solution is found
Issue: SPR-14221, SPR-13834
This commit makes sure that HTTP request headers containing ETag values
are properly parsed and not simply tokenized using a "," separator.
Indeed, ETags can legally contain separator characters such as " " and
",".
Issue: SPR-14216
Prior to this change, getting header values with `HttpHeaders` when
headers are multi-valued would cause issues.
For example, for a given HTTP message with headers:
Cache-Control: public, s-maxage=50
Cache-Control: max-age=42
Getting a `List` of all values would return <"public", "s-maxage=50">
and getting the header value would return "public, s-maxage=50".
This commit takes now into account multi-valued HTTP headers and adds
new getters/setters for "If-Match" and "If-Unmodified-Since" headers.
Note that for ETag-related headers such as "If-Match" and
"If-None-Match", a special parser has been implemented since ETag values
can contain separator characters.
Issue: SPR-14223, SPR-14228
Prior to this change, setting both "If-None-Match" and
"If-Unmodified-Since" conditional request headers would check for both
conditions to be met.
This commit fixes this behavior to follow the RFC7232 Section 6:
> entity tags are presumed to be more accurate than date validators
So in case both conditions are present, the "If-None-Match" condition
takes precedence.
Issue: SPR-14224
OkHttp3 introduces a new package and API that is incompatible with
previous versions. This commit adds a new
OkHttp3ClientHttpRequestFactory and supporting classes.
Prior to this commit, HTTP clients relying on the JDK HTTP client would
not properly reuse existing TCP connections (i.e. HTTP 1.1 persisten
connection). The SimpleClientHttpResponse would close the actual connection once the
response is handled.
As explained in the JDK documentation
(http://docs.oracle.com/javase/8/docs/technotes/guides/net/http-keepalive.html)
HTTP clients should do the following to allow resource reuse:
* consume the whole HTTP response content
* close the response inputstream once done
This commit makes sure that the response content is
totally drained and then the stream closed (and not the connection).
Issue: SPR-14040
Prior to this commit, binding a `@ModelAttribute` object as a Controller
handler paramater would instantiate the object and set all its
properties, fetching data from the request. When no data is available,
the WebDataBinder tries to bind default "empty" values:
* Boolean.FALSE for boolean types
* empty arrays for array types
* null by default
This commit adds the new default empty values:
* empty Collections for Collection types
* empty Maps for Map types
Rather than using empty implementations provided by `Collections.empty`
(which are not mutable), we're using the closest possible target type
and real implementations, provided by the `CollectionFactory`.
Issue: SPR-13502
Prior to this commit, HTTP Range requests were only supported by the
ResourceHttpRequestHandler when serving static resources.
This commit improves the ResourceHttpMessageConverter that
now supports partial writes of Resources.
For this, the `HttpEntityMethodProcessor` and
`RequestResponseBodyMethodProcessor` now wrap resources with HTTP
range information in a `HttpRangeResource`, if necessary. The
message converter handle those types and knows how to handle partial
writes.
Controller methods can now handle Range requests for
return types that extend Resource or HttpEntity:
@RequestMapping("/example/video.mp4")
public Resource handler() { }
@RequestMapping("/example/video.mp4")
public HttpEntity<Resource> handler() { }
Issue: SPR-13834