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Builder

rama::http::core::server::conn::http2

Struct Builder 

pub struct Builder { /* private fields */ }
Available on crate features http-backend and http and std only.
Expand description

A configuration builder for HTTP/2 server connections.

Note: The default values of options are not considered stable. They are subject to change at any time.

Implementations§

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impl Builder

pub fn new(exec: Executor) -> Builder

Create a new connection builder.

pub fn with_observe_early_frames(self, enabled: bool) -> Builder

Retain bounded early frames and ordered SETTINGS for observation. Disabled by default; enable only for fingerprinting or preservation.

pub fn set_observe_early_frames(&mut self, enabled: bool) -> &mut Builder

Retain bounded early frames and ordered SETTINGS for observation. Disabled by default; enable only for fingerprinting or preservation.

pub fn maybe_with_max_pending_accept_reset_streams( self, max: Option<usize>, ) -> Builder

Configures the maximum number of pending reset streams allowed before a GOAWAY will be sent.

This will default to the default value set by the h2 crate. As of v0.4.0, it is 20.

See https://github.com/hyperium/hyper/issues/2877 for more information.

pub fn maybe_set_max_pending_accept_reset_streams( &mut self, max: Option<usize>, ) -> &mut Builder

Configures the maximum number of pending reset streams allowed before a GOAWAY will be sent.

This will default to the default value set by the h2 crate. As of v0.4.0, it is 20.

See https://github.com/hyperium/hyper/issues/2877 for more information.

pub fn with_max_pending_accept_reset_streams(self, max: usize) -> Builder

Configures the maximum number of pending reset streams allowed before a GOAWAY will be sent.

This will default to the default value set by the h2 crate. As of v0.4.0, it is 20.

See https://github.com/hyperium/hyper/issues/2877 for more information.

pub fn set_max_pending_accept_reset_streams( &mut self, max: usize, ) -> &mut Builder

Configures the maximum number of pending reset streams allowed before a GOAWAY will be sent.

This will default to the default value set by the h2 crate. As of v0.4.0, it is 20.

See https://github.com/hyperium/hyper/issues/2877 for more information.

pub fn without_max_pending_accept_reset_streams(self) -> Builder

Configures the maximum number of pending reset streams allowed before a GOAWAY will be sent.

This will default to the default value set by the h2 crate. As of v0.4.0, it is 20.

See https://github.com/hyperium/hyper/issues/2877 for more information.

pub fn unset_max_pending_accept_reset_streams(&mut self) -> &mut Builder

Configures the maximum number of pending reset streams allowed before a GOAWAY will be sent.

This will default to the default value set by the h2 crate. As of v0.4.0, it is 20.

See https://github.com/hyperium/hyper/issues/2877 for more information.

pub fn maybe_with_max_local_error_reset_streams( self, max: Option<usize>, ) -> Builder

Configures the maximum number of local reset streams allowed before a GOAWAY will be sent.

If not set, rama_http_core will use a default, currently of 1024.

If None is supplied, rama_http_core will not apply any limit. This is not advised, as it can potentially expose servers to DOS vulnerabilities.

See https://rustsec.org/advisories/RUSTSEC-2024-0003.html for more information.

pub fn maybe_set_max_local_error_reset_streams( &mut self, max: Option<usize>, ) -> &mut Builder

Configures the maximum number of local reset streams allowed before a GOAWAY will be sent.

If not set, rama_http_core will use a default, currently of 1024.

If None is supplied, rama_http_core will not apply any limit. This is not advised, as it can potentially expose servers to DOS vulnerabilities.

See https://rustsec.org/advisories/RUSTSEC-2024-0003.html for more information.

pub fn with_max_local_error_reset_streams(self, max: usize) -> Builder

Configures the maximum number of local reset streams allowed before a GOAWAY will be sent.

If not set, rama_http_core will use a default, currently of 1024.

If None is supplied, rama_http_core will not apply any limit. This is not advised, as it can potentially expose servers to DOS vulnerabilities.

See https://rustsec.org/advisories/RUSTSEC-2024-0003.html for more information.

pub fn set_max_local_error_reset_streams(&mut self, max: usize) -> &mut Builder

Configures the maximum number of local reset streams allowed before a GOAWAY will be sent.

If not set, rama_http_core will use a default, currently of 1024.

If None is supplied, rama_http_core will not apply any limit. This is not advised, as it can potentially expose servers to DOS vulnerabilities.

See https://rustsec.org/advisories/RUSTSEC-2024-0003.html for more information.

pub fn without_max_local_error_reset_streams(self) -> Builder

Configures the maximum number of local reset streams allowed before a GOAWAY will be sent.

If not set, rama_http_core will use a default, currently of 1024.

If None is supplied, rama_http_core will not apply any limit. This is not advised, as it can potentially expose servers to DOS vulnerabilities.

See https://rustsec.org/advisories/RUSTSEC-2024-0003.html for more information.

pub fn unset_max_local_error_reset_streams(&mut self) -> &mut Builder

Configures the maximum number of local reset streams allowed before a GOAWAY will be sent.

If not set, rama_http_core will use a default, currently of 1024.

If None is supplied, rama_http_core will not apply any limit. This is not advised, as it can potentially expose servers to DOS vulnerabilities.

See https://rustsec.org/advisories/RUSTSEC-2024-0003.html for more information.

pub fn maybe_with_data_frame_budget(self, budget: Option<usize>) -> Builder

Configures the connection-level budget for the memory overhead of received small DATA frames, exhausting it closes the connection.

See the documentation of crate::h2::server::Builder::with_data_frame_budget for more details.

The default, None, is half the target connection window, at least 25,600 bytes.

pub fn maybe_set_data_frame_budget( &mut self, budget: Option<usize>, ) -> &mut Builder

Configures the connection-level budget for the memory overhead of received small DATA frames, exhausting it closes the connection.

See the documentation of crate::h2::server::Builder::with_data_frame_budget for more details.

The default, None, is half the target connection window, at least 25,600 bytes.

pub fn with_data_frame_budget(self, budget: usize) -> Builder

Configures the connection-level budget for the memory overhead of received small DATA frames, exhausting it closes the connection.

See the documentation of crate::h2::server::Builder::with_data_frame_budget for more details.

The default, None, is half the target connection window, at least 25,600 bytes.

pub fn set_data_frame_budget(&mut self, budget: usize) -> &mut Builder

Configures the connection-level budget for the memory overhead of received small DATA frames, exhausting it closes the connection.

See the documentation of crate::h2::server::Builder::with_data_frame_budget for more details.

The default, None, is half the target connection window, at least 25,600 bytes.

pub fn without_data_frame_budget(self) -> Builder

Configures the connection-level budget for the memory overhead of received small DATA frames, exhausting it closes the connection.

See the documentation of crate::h2::server::Builder::with_data_frame_budget for more details.

The default, None, is half the target connection window, at least 25,600 bytes.

pub fn unset_data_frame_budget(&mut self) -> &mut Builder

Configures the connection-level budget for the memory overhead of received small DATA frames, exhausting it closes the connection.

See the documentation of crate::h2::server::Builder::with_data_frame_budget for more details.

The default, None, is half the target connection window, at least 25,600 bytes.

pub fn with_initial_stream_window_size(self, sz: u32) -> Builder

Sets the SETTINGS_INITIAL_WINDOW_SIZE option for HTTP2 stream-level flow control.

If not set, rama_http_core will use a default.

pub fn set_initial_stream_window_size(&mut self, sz: u32) -> &mut Builder

Sets the SETTINGS_INITIAL_WINDOW_SIZE option for HTTP2 stream-level flow control.

If not set, rama_http_core will use a default.

pub fn with_initial_connection_window_size(self, sz: u32) -> Builder

Sets the max connection-level flow control for HTTP2.

If not set, rama_http_core will use a default.

pub fn set_initial_connection_window_size(&mut self, sz: u32) -> &mut Builder

Sets the max connection-level flow control for HTTP2.

If not set, rama_http_core will use a default.

pub fn with_adaptive_window(self, enabled: bool) -> Builder

Sets whether to use an adaptive flow control.

Enabling this will override the limits set in initial_stream_window_size and initial_connection_window_size.

pub fn set_adaptive_window(&mut self, enabled: bool) -> &mut Builder

Sets whether to use an adaptive flow control.

Enabling this will override the limits set in initial_stream_window_size and initial_connection_window_size.

pub fn with_max_frame_size(self, sz: u32) -> Builder

Sets the maximum frame size to use for HTTP2.

If not set, rama_http_core will use a default.

pub fn set_max_frame_size(&mut self, sz: u32) -> &mut Builder

Sets the maximum frame size to use for HTTP2.

If not set, rama_http_core will use a default.

pub fn maybe_with_max_concurrent_streams(self, max: Option<u32>) -> Builder

Sets the SETTINGS_MAX_CONCURRENT_STREAMS option for HTTP2 connections.

Default is 200, but not part of the stability of rama_http_core. It could change in a future release. You are encouraged to set your own limit.

Passing None will remove any limit.

pub fn maybe_set_max_concurrent_streams( &mut self, max: Option<u32>, ) -> &mut Builder

Sets the SETTINGS_MAX_CONCURRENT_STREAMS option for HTTP2 connections.

Default is 200, but not part of the stability of rama_http_core. It could change in a future release. You are encouraged to set your own limit.

Passing None will remove any limit.

pub fn with_max_concurrent_streams(self, max: u32) -> Builder

Sets the SETTINGS_MAX_CONCURRENT_STREAMS option for HTTP2 connections.

Default is 200, but not part of the stability of rama_http_core. It could change in a future release. You are encouraged to set your own limit.

Passing None will remove any limit.

pub fn set_max_concurrent_streams(&mut self, max: u32) -> &mut Builder

Sets the SETTINGS_MAX_CONCURRENT_STREAMS option for HTTP2 connections.

Default is 200, but not part of the stability of rama_http_core. It could change in a future release. You are encouraged to set your own limit.

Passing None will remove any limit.

pub fn without_max_concurrent_streams(self) -> Builder

Sets the SETTINGS_MAX_CONCURRENT_STREAMS option for HTTP2 connections.

Default is 200, but not part of the stability of rama_http_core. It could change in a future release. You are encouraged to set your own limit.

Passing None will remove any limit.

pub fn unset_max_concurrent_streams(&mut self) -> &mut Builder

Sets the SETTINGS_MAX_CONCURRENT_STREAMS option for HTTP2 connections.

Default is 200, but not part of the stability of rama_http_core. It could change in a future release. You are encouraged to set your own limit.

Passing None will remove any limit.

pub fn max_concurrent_streams(&self) -> u32

Gets the SETTINGS_MAX_CONCURRENT_STREAMS option used for HTTP2 connections.

pub fn maybe_with_keep_alive_interval( self, interval: Option<Duration>, ) -> Builder

Sets an interval for HTTP2 Ping frames should be sent to keep a connection alive.

Pass None to disable HTTP2 keep-alive.

Default is currently disabled.

pub fn maybe_set_keep_alive_interval( &mut self, interval: Option<Duration>, ) -> &mut Builder

Sets an interval for HTTP2 Ping frames should be sent to keep a connection alive.

Pass None to disable HTTP2 keep-alive.

Default is currently disabled.

pub fn with_keep_alive_interval(self, interval: Duration) -> Builder

Sets an interval for HTTP2 Ping frames should be sent to keep a connection alive.

Pass None to disable HTTP2 keep-alive.

Default is currently disabled.

pub fn set_keep_alive_interval(&mut self, interval: Duration) -> &mut Builder

Sets an interval for HTTP2 Ping frames should be sent to keep a connection alive.

Pass None to disable HTTP2 keep-alive.

Default is currently disabled.

pub fn without_keep_alive_interval(self) -> Builder

Sets an interval for HTTP2 Ping frames should be sent to keep a connection alive.

Pass None to disable HTTP2 keep-alive.

Default is currently disabled.

pub fn unset_keep_alive_interval(&mut self) -> &mut Builder

Sets an interval for HTTP2 Ping frames should be sent to keep a connection alive.

Pass None to disable HTTP2 keep-alive.

Default is currently disabled.

pub fn with_keep_alive_timeout(self, timeout: Duration) -> Builder

Sets a timeout for receiving an acknowledgement of the keep-alive ping.

If the ping is not acknowledged within the timeout, the connection will be closed. Does nothing if keep_alive_interval is disabled.

Default is 20 seconds.

pub fn set_keep_alive_timeout(&mut self, timeout: Duration) -> &mut Builder

Sets a timeout for receiving an acknowledgement of the keep-alive ping.

If the ping is not acknowledged within the timeout, the connection will be closed. Does nothing if keep_alive_interval is disabled.

Default is 20 seconds.

pub fn with_max_send_buf_size(self, max: u32) -> Builder

Set the maximum write buffer size for each HTTP/2 stream.

Default is currently ~400KB, but may change.

pub fn set_max_send_buf_size(&mut self, max: u32) -> &mut Builder

Set the maximum write buffer size for each HTTP/2 stream.

Default is currently ~400KB, but may change.

pub fn with_alt_svc(self, enabled: bool) -> Builder

Enable bounded ALTSVC frame emission through request extensions.

Disabled by default. Ordinary response Alt-Svc headers do not need this option, and client-side frame observation is configured separately.

pub fn set_alt_svc(&mut self, enabled: bool) -> &mut Builder

Enable bounded ALTSVC frame emission through request extensions.

Disabled by default. Ordinary response Alt-Svc headers do not need this option, and client-side frame observation is configured separately.

pub fn with_enable_connect_protocol(self) -> Builder

Enables the extended CONNECT protocol.

pub fn set_enable_connect_protocol(&mut self) -> &mut Builder

Enables the extended CONNECT protocol.

pub fn maybe_with_header_table_size(self, size: Option<u32>) -> Builder

Sets the header table size.

This setting informs the peer of the maximum size of the header compression table used to encode header blocks, in octets. The encoder may select any value equal to or less than the header table size specified by the sender.

The default value of crate h2 is 4,096.

pub fn maybe_set_header_table_size(&mut self, size: Option<u32>) -> &mut Builder

Sets the header table size.

This setting informs the peer of the maximum size of the header compression table used to encode header blocks, in octets. The encoder may select any value equal to or less than the header table size specified by the sender.

The default value of crate h2 is 4,096.

pub fn with_header_table_size(self, size: u32) -> Builder

Sets the header table size.

This setting informs the peer of the maximum size of the header compression table used to encode header blocks, in octets. The encoder may select any value equal to or less than the header table size specified by the sender.

The default value of crate h2 is 4,096.

pub fn set_header_table_size(&mut self, size: u32) -> &mut Builder

Sets the header table size.

This setting informs the peer of the maximum size of the header compression table used to encode header blocks, in octets. The encoder may select any value equal to or less than the header table size specified by the sender.

The default value of crate h2 is 4,096.

pub fn without_header_table_size(self) -> Builder

Sets the header table size.

This setting informs the peer of the maximum size of the header compression table used to encode header blocks, in octets. The encoder may select any value equal to or less than the header table size specified by the sender.

The default value of crate h2 is 4,096.

pub fn unset_header_table_size(&mut self) -> &mut Builder

Sets the header table size.

This setting informs the peer of the maximum size of the header compression table used to encode header blocks, in octets. The encoder may select any value equal to or less than the header table size specified by the sender.

The default value of crate h2 is 4,096.

pub fn with_max_header_list_size(self, max: u32) -> Builder

Sets the max size of received header frames.

Default is currently 16KB, but can change.

pub fn set_max_header_list_size(&mut self, max: u32) -> &mut Builder

Sets the max size of received header frames.

Default is currently 16KB, but can change.

pub fn maybe_with_header_read_timeout( self, timeout: Option<HeaderReadTimeout>, ) -> Builder

Set the deadline for receiving a request head: the client preface and every HEADERS block with its CONTINUATION frames.

Defaults to HeaderReadTimeout::DEFAULT; None disables it.

pub fn maybe_set_header_read_timeout( &mut self, timeout: Option<HeaderReadTimeout>, ) -> &mut Builder

Set the deadline for receiving a request head: the client preface and every HEADERS block with its CONTINUATION frames.

Defaults to HeaderReadTimeout::DEFAULT; None disables it.

pub fn with_header_read_timeout(self, timeout: HeaderReadTimeout) -> Builder

Set the deadline for receiving a request head: the client preface and every HEADERS block with its CONTINUATION frames.

Defaults to HeaderReadTimeout::DEFAULT; None disables it.

pub fn set_header_read_timeout( &mut self, timeout: HeaderReadTimeout, ) -> &mut Builder

Set the deadline for receiving a request head: the client preface and every HEADERS block with its CONTINUATION frames.

Defaults to HeaderReadTimeout::DEFAULT; None disables it.

pub fn without_header_read_timeout(self) -> Builder

Set the deadline for receiving a request head: the client preface and every HEADERS block with its CONTINUATION frames.

Defaults to HeaderReadTimeout::DEFAULT; None disables it.

pub fn unset_header_read_timeout(&mut self) -> &mut Builder

Set the deadline for receiving a request head: the client preface and every HEADERS block with its CONTINUATION frames.

Defaults to HeaderReadTimeout::DEFAULT; None disables it.

pub fn maybe_with_idle_timeout(self, timeout: Option<IdleTimeout>) -> Builder

Set the budget while no stream is open nor a request head in progress, after which the connection closes with a graceful GOAWAY.

Defaults to IdleTimeout::DEFAULT; None disables it.

pub fn maybe_set_idle_timeout( &mut self, timeout: Option<IdleTimeout>, ) -> &mut Builder

Set the budget while no stream is open nor a request head in progress, after which the connection closes with a graceful GOAWAY.

Defaults to IdleTimeout::DEFAULT; None disables it.

pub fn with_idle_timeout(self, timeout: IdleTimeout) -> Builder

Set the budget while no stream is open nor a request head in progress, after which the connection closes with a graceful GOAWAY.

Defaults to IdleTimeout::DEFAULT; None disables it.

pub fn set_idle_timeout(&mut self, timeout: IdleTimeout) -> &mut Builder

Set the budget while no stream is open nor a request head in progress, after which the connection closes with a graceful GOAWAY.

Defaults to IdleTimeout::DEFAULT; None disables it.

pub fn without_idle_timeout(self) -> Builder

Set the budget while no stream is open nor a request head in progress, after which the connection closes with a graceful GOAWAY.

Defaults to IdleTimeout::DEFAULT; None disables it.

pub fn unset_idle_timeout(&mut self) -> &mut Builder

Set the budget while no stream is open nor a request head in progress, after which the connection closes with a graceful GOAWAY.

Defaults to IdleTimeout::DEFAULT; None disables it.

pub fn with_strict_connect_framing(self, enabled: bool) -> Builder

Set whether a successful response to CONNECT that carries Content-Length resets its stream, rather than having that field dropped.

RFC 9110 §9.3.6 forbids the field there, as a tunnel follows the response.

Default is false: the field is dropped and the tunnel opens.

pub fn set_strict_connect_framing(&mut self, enabled: bool) -> &mut Builder

Set whether a successful response to CONNECT that carries Content-Length resets its stream, rather than having that field dropped.

RFC 9110 §9.3.6 forbids the field there, as a tunnel follows the response.

Default is false: the field is dropped and the tunnel opens.

pub fn with_auto_date_header(self, enabled: bool) -> Builder

Set whether the date header should be included in HTTP responses.

Note that including the date header is recommended by RFC 7231.

Default is true.

pub fn set_auto_date_header(&mut self, enabled: bool) -> &mut Builder

Set whether the date header should be included in HTTP responses.

Note that including the date header is recommended by RFC 7231.

Default is true.

pub fn serve_connection<S, I>(&self, io: I, service: S) -> Connection<I, S> ⓘ
where S: Service<Request<Incoming>, Output = Response, Error = !>, I: AsyncRead + AsyncWrite + Send + Unpin + ExtensionsRef + 'static,

Bind a connection together with a Service.

This returns a Future that must be polled in order for HTTP to be driven on the connection.

The IO’s Extensions are checked for an H2ServerContextParams: if present, its fields override the corresponding builder defaults for this connection only, before the initial SETTINGS frame is sent. Used primarily by MITM relays mirroring upstream SETTINGS.

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impl Clone for Builder

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fn clone(&self) -> Builder

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Builder

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

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impl<T, U> TryInto<U> for T
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<V, F> ValueFormatter<&V> for F
where F: ValueFormatter<V> + ?Sized, V: ?Sized,

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const SHAPE: FieldShape<'static>

Available on non-metrique_require_explicit_impls only.
The shape of values produced by this formatter. Read more
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fn format_value(writer: impl ValueWriter, value: &&V)

Write value to writer
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impl<V, F> ValueFormatter<Arc<V>> for F
where F: ValueFormatter<V> + ?Sized, V: ?Sized,

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const SHAPE: FieldShape<'static>

Available on non-metrique_require_explicit_impls only.
The shape of values produced by this formatter. Read more
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fn format_value(writer: impl ValueWriter, value: &Arc<V>)

Write value to writer
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impl<V, F> ValueFormatter<Box<V>> for F
where F: ValueFormatter<V> + ?Sized, V: ?Sized,

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const SHAPE: FieldShape<'static>

Available on non-metrique_require_explicit_impls only.
The shape of values produced by this formatter. Read more
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fn format_value(writer: impl ValueWriter, value: &Box<V>)

Write value to writer
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impl<V, F> ValueFormatter<Cow<'_, V>> for F
where V: ToOwned + ?Sized, F: ValueFormatter<V> + ?Sized,

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const SHAPE: FieldShape<'static>

Available on non-metrique_require_explicit_impls only.
The shape of values produced by this formatter. Read more
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fn format_value(writer: impl ValueWriter, value: &Cow<'_, V>)

Write value to writer
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impl<V, F> ValueFormatter<Option<V>> for F
where F: ValueFormatter<V> + ?Sized,

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const SHAPE: FieldShape<'static>

Available on non-metrique_require_explicit_impls only.
The shape of values produced by this formatter. Read more
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fn format_value(writer: impl ValueWriter, value: &Option<V>)

Write value to writer
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more