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adding cors support (#6987)

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* adding cors support

* address some comments

* optimize matchesWildcard

* address comments

* fix for tests

* address comments

* address comments

* address comments

* path building

* refactor

* Update weed/s3api/s3api_bucket_config.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* address comment

Service-level responses need both Access-Control-Allow-Methods and Access-Control-Allow-Headers. After setting Access-Control-Allow-Origin and Access-Control-Expose-Headers, also set Access-Control-Allow-Methods: * and Access-Control-Allow-Headers: * so service endpoints satisfy CORS preflight requirements.

* Update weed/s3api/s3api_bucket_config.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update weed/s3api/s3api_object_handlers.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update weed/s3api/s3api_object_handlers.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* fix

* refactor

* Update weed/s3api/s3api_bucket_config.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update weed/s3api/s3api_object_handlers.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update weed/s3api/s3api_server.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* simplify

* add cors tests

* fix tests

* fix tests

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
This commit is contained in:
Chris Lu
2025-07-15 00:23:54 -07:00
committed by GitHub
parent 548fa0b50a
commit 4b040e8a87
17 changed files with 3756 additions and 53 deletions
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35
weed/s3api/s3api_object_handlers.go
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@@ -20,6 +20,17 @@ import (
util_http "github.com/seaweedfs/seaweedfs/weed/util/http"
)
// corsHeaders defines the CORS headers that need to be preserved
// Package-level constant to avoid repeated allocations
var corsHeaders = []string{
"Access-Control-Allow-Origin",
"Access-Control-Allow-Methods",
"Access-Control-Allow-Headers",
"Access-Control-Expose-Headers",
"Access-Control-Max-Age",
"Access-Control-Allow-Credentials",
}
func mimeDetect(r *http.Request, dataReader io.Reader) io.ReadCloser {
mimeBuffer := make([]byte, 512)
size, _ := dataReader.Read(mimeBuffer)
@@ -381,10 +392,34 @@ func setUserMetadataKeyToLowercase(resp *http.Response) {
}
}
func captureCORSHeaders(w http.ResponseWriter, headersToCapture []string) map[string]string {
captured := make(map[string]string)
for _, corsHeader := range headersToCapture {
if value := w.Header().Get(corsHeader); value != "" {
captured[corsHeader] = value
}
}
return captured
}
func restoreCORSHeaders(w http.ResponseWriter, capturedCORSHeaders map[string]string) {
for corsHeader, value := range capturedCORSHeaders {
w.Header().Set(corsHeader, value)
}
}
func passThroughResponse(proxyResponse *http.Response, w http.ResponseWriter) (statusCode int, bytesTransferred int64) {
// Capture existing CORS headers that may have been set by middleware
capturedCORSHeaders := captureCORSHeaders(w, corsHeaders)
// Copy headers from proxy response
for k, v := range proxyResponse.Header {
w.Header()[k] = v
}
// Restore CORS headers that were set by middleware
restoreCORSHeaders(w, capturedCORSHeaders)
if proxyResponse.Header.Get("Content-Range") != "" && proxyResponse.StatusCode == 200 {
w.WriteHeader(http.StatusPartialContent)
statusCode = http.StatusPartialContent