Attachments need CommonsResolver, Vaadin needs StandardResolver. Swit…

…ch between both. Fixes #246

acrarium/src/main/kotlin/com/faendir/acra/rest/RestConfiguration.kt

@@ -5,9 +5,12 @@ import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.Configuration
 import org.springframework.core.Ordered
 import org.springframework.core.annotation.Order
+import org.springframework.web.multipart.MultipartHttpServletRequest
 import org.springframework.web.multipart.MultipartResolver
 import org.springframework.web.multipart.commons.CommonsMultipartResolver
+import org.springframework.web.multipart.support.StandardServletMultipartResolver
 import javax.servlet.Filter
+import javax.servlet.http.HttpServletRequest
 
 @Configuration
 class RestConfiguration {
@@ -16,5 +19,23 @@ class RestConfiguration {
     fun gzipFilter(): Filter = CompressingFilter()
 
     @Bean
-    fun multipartResolver(): MultipartResolver = CommonsMultipartResolver()
+    fun multipartResolver(): MultipartResolver = SwitchingMultipartResolver()
+}
+
+class SwitchingMultipartResolver : MultipartResolver {
+    private val commonsResolver = CommonsMultipartResolver()
+    private val standardResolver = StandardServletMultipartResolver()
+    override fun isMultipart(request: HttpServletRequest): Boolean {
+        return request.resolver().isMultipart(request)
+    }
+
+    override fun resolveMultipart(request: HttpServletRequest): MultipartHttpServletRequest {
+        return request.resolver().resolveMultipart(request)
+    }
+
+    override fun cleanupMultipart(request: MultipartHttpServletRequest) {
+        return request.resolver().cleanupMultipart(request)
+    }
+
+    private fun HttpServletRequest.resolver() = if (this.servletPath.startsWith("/VAADIN")) standardResolver else commonsResolver
 }

acrarium/src/main/kotlin/com/faendir/acra/security/SecurityUtils.kt

@@ -50,6 +50,6 @@ object SecurityUtils {
     @JvmStatic
     fun isFrameworkInternalRequest(request: HttpServletRequest): Boolean {
         val parameterValue = request.getParameter(ApplicationConstants.REQUEST_TYPE_PARAMETER)
-        return (parameterValue != null && RequestType.values().any { it.getIdentifier() == parameterValue })
+        return (parameterValue != null && RequestType.values().any { it.identifier == parameterValue })
     }
 }