From 90f3b24edcd24cd19827b46917f004e57560d0d3 Mon Sep 17 00:00:00 2001
From: Erik Booij <118971329+ErikBooijMB@users.noreply.github.com>
Date: Tue, 9 Jan 2024 19:00:44 +0100
Subject: [PATCH] fix(go-server): ensure original filename can be deduced from
 tmp file (#17416)

---
 .../src/main/resources/go-server/routers.mustache             | 4 +++-
 samples/openapi3/server/petstore/go/go-petstore/go/routers.go | 4 +++-
 samples/server/petstore/go-api-server/go/routers.go           | 4 +++-
 samples/server/petstore/go-chi-server/go/routers.go           | 4 +++-
 4 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/modules/openapi-generator/src/main/resources/go-server/routers.mustache b/modules/openapi-generator/src/main/resources/go-server/routers.mustache
index 2dfdc8c01d14..3fe075ec2400 100644
--- a/modules/openapi-generator/src/main/resources/go-server/routers.mustache
+++ b/modules/openapi-generator/src/main/resources/go-server/routers.mustache
@@ -169,7 +169,9 @@ func readFileHeaderToTempFile(fileHeader *multipart.FileHeader) (*os.File, error
 
 	defer formFile.Close()
 
-	file, err := os.CreateTemp("", fileHeader.Filename)
+	// Use .* as suffix, because the asterisk is a placeholder for the random value,
+	// and the period allows consumers of this file to remove the suffix to obtain the original file name
+	file, err := os.CreateTemp("", fileHeader.Filename+".*")
 	if err != nil {
 		return nil, err
 	}
diff --git a/samples/openapi3/server/petstore/go/go-petstore/go/routers.go b/samples/openapi3/server/petstore/go/go-petstore/go/routers.go
index 358a6281c80a..07d148352e28 100644
--- a/samples/openapi3/server/petstore/go/go-petstore/go/routers.go
+++ b/samples/openapi3/server/petstore/go/go-petstore/go/routers.go
@@ -136,7 +136,9 @@ func readFileHeaderToTempFile(fileHeader *multipart.FileHeader) (*os.File, error
 
 	defer formFile.Close()
 
-	file, err := os.CreateTemp("", fileHeader.Filename)
+	// Use .* as suffix, because the asterisk is a placeholder for the random value,
+	// and the period allows consumers of this file to remove the suffix to obtain the original file name
+	file, err := os.CreateTemp("", fileHeader.Filename+".*")
 	if err != nil {
 		return nil, err
 	}
diff --git a/samples/server/petstore/go-api-server/go/routers.go b/samples/server/petstore/go-api-server/go/routers.go
index 6ad214ba4b66..a22936ca05a6 100644
--- a/samples/server/petstore/go-api-server/go/routers.go
+++ b/samples/server/petstore/go-api-server/go/routers.go
@@ -140,7 +140,9 @@ func readFileHeaderToTempFile(fileHeader *multipart.FileHeader) (*os.File, error
 
 	defer formFile.Close()
 
-	file, err := os.CreateTemp("", fileHeader.Filename)
+	// Use .* as suffix, because the asterisk is a placeholder for the random value,
+	// and the period allows consumers of this file to remove the suffix to obtain the original file name
+	file, err := os.CreateTemp("", fileHeader.Filename+".*")
 	if err != nil {
 		return nil, err
 	}
diff --git a/samples/server/petstore/go-chi-server/go/routers.go b/samples/server/petstore/go-chi-server/go/routers.go
index 358a6281c80a..07d148352e28 100644
--- a/samples/server/petstore/go-chi-server/go/routers.go
+++ b/samples/server/petstore/go-chi-server/go/routers.go
@@ -136,7 +136,9 @@ func readFileHeaderToTempFile(fileHeader *multipart.FileHeader) (*os.File, error
 
 	defer formFile.Close()
 
-	file, err := os.CreateTemp("", fileHeader.Filename)
+	// Use .* as suffix, because the asterisk is a placeholder for the random value,
+	// and the period allows consumers of this file to remove the suffix to obtain the original file name
+	file, err := os.CreateTemp("", fileHeader.Filename+".*")
 	if err != nil {
 		return nil, err
 	}