feat: host-metaを返せるように

hideout/hideout-activitypub/src/main/kotlin/dev/usbharu/hideout/activitypub/application/hostmeta/WebHostMetadata.kt

@@ -0,0 +1,20 @@
+package dev.usbharu.hideout.activitypub.application.hostmeta
+
+import com.fasterxml.jackson.annotation.JsonProperty
+import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlElementWrapper
+import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlProperty
+import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlRootElement
+
+@JacksonXmlRootElement(localName = "XRD", namespace = "http://docs.oasis-open.org/ns/xri/xrd-1.0")
+class WebHostMetadata(
+    @JacksonXmlProperty(localName = "Link", namespace = "http://docs.oasis-open.org/ns/xri/xrd-1.0")
+    @JacksonXmlElementWrapper(useWrapping = false)
+    @JsonProperty("links")
+    val links: List<Link>,
+)
+
+class Link(
+    @JacksonXmlProperty(localName = "rel", isAttribute = true) val rel: String,
+    @JacksonXmlProperty(localName = "template", isAttribute = true) val template: String,
+    @JacksonXmlProperty(localName = "type", isAttribute = true) val type: String,
+)

hideout/hideout-activitypub/src/main/kotlin/dev/usbharu/hideout/activitypub/config/ActivityPubSecurityConfig.kt

@@ -23,6 +23,8 @@ class ActivityPubSecurityConfig {
                 }
             )
             authorizeHttpRequests {
+                authorize(GET, "/.well-known/**", permitAll)
+                authorize(GET, "/error", permitAll)
                 authorize(POST, "/inbox", permitAll)
                 authorize(POST, "/users/{username}/inbox", permitAll)
                 authorize(GET, "/outbox", permitAll)

hideout/hideout-activitypub/src/main/kotlin/dev/usbharu/hideout/activitypub/interfaces/wellknown/HostmetaController.kt

@@ -0,0 +1,32 @@
+package dev.usbharu.hideout.activitypub.interfaces.wellknown
+
+import dev.usbharu.hideout.activitypub.application.hostmeta.Link
+import dev.usbharu.hideout.activitypub.application.hostmeta.WebHostMetadata
+import org.springframework.core.annotation.Order
+import org.springframework.http.MediaType
+import org.springframework.http.ResponseEntity
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+@RequestMapping("/.well-known")
+class HostmetaController {
+    @Order(1)
+    @GetMapping("/host-meta")
+    fun hostmeta(): ResponseEntity<WebHostMetadata> {
+        return ResponseEntity.ok().contentType(MediaType("application", "xrd+xml"))
+            .body(WebHostMetadata(listOf(Link("a", "b", "c"))))
+    }
+
+    @Order(2)
+    @GetMapping("/host-meta", produces = ["application/json"])
+    fun hostmetaJson(): WebHostMetadata {
+        return WebHostMetadata(listOf(Link("a", "b", "c")))
+    }
+
+    @GetMapping("/host-meta.json", produces = ["application/json"])
+    fun hostmetaJson2(): WebHostMetadata {
+        return WebHostMetadata(listOf(Link("a", "b", "c")))
+    }
+}