Enable CORS (again)

PerfectDreams · Sep 21, 2023 · dbca9cc · dbca9cc
1 parent b58a5b9
commit dbca9cc
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diff --git a/backend/build.gradle.kts b/backend/build.gradle.kts
@@ -18,6 +18,7 @@ dependencies {
  implementation(libs.ktor.server.netty)
  implementation(libs.ktor.server.compression)
  implementation(libs.ktor.server.caching.headers)
+ implementation(libs.ktor.server.cors)
  implementation(libs.kotlinx.serialization.json)
 
  implementation(project(":common"))

diff --git a/backend/src/main/kotlin/net/perfectdreams/etherealgambi/backend/EtherealGambi.kt b/backend/src/main/kotlin/net/perfectdreams/etherealgambi/backend/EtherealGambi.kt
@@ -7,6 +7,7 @@ import io.ktor.server.engine.*
 import io.ktor.server.netty.*
 import io.ktor.server.plugins.cachingheaders.*
 import io.ktor.server.plugins.compression.*
+import io.ktor.server.plugins.cors.routing.*
 import io.ktor.server.routing.*
 import kotlinx.coroutines.runBlocking
 import kotlinx.coroutines.sync.Mutex
@@ -100,6 +101,19 @@ class EtherealGambi {
  }
  }
 
+ // Useful for images in a JavaScript canvas, since by default you CAN'T manipulate external images in a Canvas
+ install(CORS) {
+ anyHost()
+ allowMethod(HttpMethod.Get)
+ allowMethod(HttpMethod.Post)
+ allowMethod(HttpMethod.Options)
+ allowMethod(HttpMethod.Put)
+ allowMethod(HttpMethod.Patch)
+ allowMethod(HttpMethod.Delete)
+ allowHeader(HttpHeaders.AccessControlAllowOrigin)
+ allowHeader(HttpHeaders.ContentType)
+ }
+
  routing {
  for (route in routes) {
  route.register(this)