Deprecate ChannelSecurityConfigurer

Closes gh-16680

Author: jzheaux

config/src/main/java/org/springframework/security/config/annotation/web/builders/HttpSecurity.java

@@ -3137,7 +3137,9 @@ public ChannelSecurityConfigurer<HttpSecurity>.ChannelRequestMatcherRegistry req
 	 * the {@link ChannelSecurityConfigurer.ChannelRequestMatcherRegistry}
 	 * @return the {@link HttpSecurity} for further customizations
 	 * @throws Exception
+	 * @deprecated Use {@link #redirectToHttps}
 	 */
+	@Deprecated
 	public HttpSecurity requiresChannel(
 			Customizer<ChannelSecurityConfigurer<HttpSecurity>.ChannelRequestMatcherRegistry> requiresChannelCustomizer)
 			throws Exception {

config/src/main/java/org/springframework/security/config/annotation/web/configurers/ChannelSecurityConfigurer.java

@@ -78,7 +78,9 @@
  * @author Rob Winch
  * @author Onur Kagan Ozcan
  * @since 3.2
+ * @deprecated please use {@link HttpsRedirectConfigurer} instead
  */
+@Deprecated
 public final class ChannelSecurityConfigurer<H extends HttpSecurityBuilder<H>>
 		extends AbstractHttpConfigurer<ChannelSecurityConfigurer<H>, H> {
 
@@ -147,6 +149,10 @@ private ChannelRequestMatcherRegistry addAttribute(String attribute, List<? exte
 		return this.REGISTRY;
 	}
 
+	/**
+	 * @deprecated no replacement planned
+	 */
+	@Deprecated
 	public final class ChannelRequestMatcherRegistry
 			extends AbstractConfigAttributeRequestMatcherRegistry<RequiresChannelUrl> {
 
@@ -215,6 +221,10 @@ public H and() {
 
 	}
 
+	/**
+	 * @deprecated no replacement planned
+	 */
+	@Deprecated
 	public class RequiresChannelUrl {
 
 		protected List<? extends RequestMatcher> requestMatchers;

config/src/main/kotlin/org/springframework/security/config/annotation/web/HttpSecurityDsl.kt

@@ -527,7 +527,9 @@ class HttpSecurityDsl(private val http: HttpSecurity, private val init: HttpSecu
      * @param requiresChannelConfiguration custom configuration that specifies
      * channel security
      * @see [RequiresChannelDsl]
+     * @deprecated please use [redirectToHttps] instead
      */
+    @Deprecated(message="since 6.5 use redirectToHttps instead")
     fun requiresChannel(requiresChannelConfiguration: RequiresChannelDsl.() -> Unit) {
         val requiresChannelCustomizer = RequiresChannelDsl().apply(requiresChannelConfiguration).get()
         this.http.requiresChannel(requiresChannelCustomizer)