mirror of
https://github.com/DullJZ/s3-balance.git
synced 2026-07-13 00:11:26 +08:00
781 lines
23 KiB
Go
781 lines
23 KiB
Go
package api
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import (
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"context"
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"encoding/xml"
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"fmt"
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"io"
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"net/http"
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"net/url"
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"strconv"
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"strings"
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"time"
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"github.com/DullJZ/s3-balance/internal/balancer"
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"github.com/DullJZ/s3-balance/internal/bucket"
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"github.com/DullJZ/s3-balance/internal/storage"
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"github.com/DullJZ/s3-balance/pkg/presigner"
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"github.com/aws/aws-sdk-go-v2/aws"
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"github.com/aws/aws-sdk-go-v2/service/s3"
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"github.com/aws/aws-sdk-go-v2/service/s3/types"
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"github.com/gorilla/mux"
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)
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// S3Handler S3兼容的API处理器
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type S3Handler struct {
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bucketManager *bucket.Manager
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balancer *balancer.Balancer
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presigner *presigner.Presigner
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storage *storage.Service
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accessKey string
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secretKey string
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}
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// NewS3Handler 创建新的S3兼容API处理器
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func NewS3Handler(
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bucketManager *bucket.Manager,
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balancer *balancer.Balancer,
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presigner *presigner.Presigner,
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storage *storage.Service,
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accessKey string,
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secretKey string,
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) *S3Handler {
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return &S3Handler{
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bucketManager: bucketManager,
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balancer: balancer,
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presigner: presigner,
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storage: storage,
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accessKey: accessKey,
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secretKey: secretKey,
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}
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}
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// RegisterS3Routes 注册S3兼容的路由
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func (h *S3Handler) RegisterS3Routes(router *mux.Router) {
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// Service operations
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router.HandleFunc("/", h.handleListBuckets).Methods("GET")
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// Bucket operations
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router.HandleFunc("/{bucket}", h.handleBucketOperations).Methods("GET", "HEAD", "PUT", "DELETE")
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// Object operations
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router.HandleFunc("/{bucket}/{key:.*}", h.handleObjectOperations).Methods("GET", "HEAD", "PUT", "DELETE")
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// Multipart upload operations
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router.HandleFunc("/{bucket}/{key:.*}", h.handleMultipartUpload).Methods("POST").Queries("uploads", "")
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router.HandleFunc("/{bucket}/{key:.*}", h.handleListMultipartUploads).Methods("GET").Queries("uploads", "")
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router.HandleFunc("/{bucket}/{key:.*}", h.handleListMultipartParts).Methods("GET").Queries("uploadId", "")
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router.HandleFunc("/{bucket}/{key:.*}", h.handleCompleteMultipartUpload).Methods("POST").Queries("uploadId", "")
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router.HandleFunc("/{bucket}/{key:.*}", h.handleAbortMultipartUpload).Methods("DELETE").Queries("uploadId", "")
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// 添加认证中间件
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router.Use(h.s3AuthMiddleware)
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}
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// S3 XML响应结构体定义
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type ListBucketsResult struct {
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XMLName xml.Name `xml:"ListAllMyBucketsResult"`
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Xmlns string `xml:"xmlns,attr"`
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Owner Owner `xml:"Owner"`
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Buckets Buckets `xml:"Buckets"`
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}
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type Owner struct {
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ID string `xml:"ID"`
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DisplayName string `xml:"DisplayName"`
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}
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type Buckets struct {
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Bucket []BucketInfo `xml:"Bucket"`
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}
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type BucketInfo struct {
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Name string `xml:"Name"`
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CreationDate time.Time `xml:"CreationDate"`
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}
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type ListBucketResult struct {
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XMLName xml.Name `xml:"ListBucketResult"`
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Xmlns string `xml:"xmlns,attr"`
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Name string `xml:"Name"`
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Prefix string `xml:"Prefix"`
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Marker string `xml:"Marker"`
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MaxKeys int `xml:"MaxKeys"`
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IsTruncated bool `xml:"IsTruncated"`
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Contents []ObjectInfo `xml:"Contents"`
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CommonPrefixes []CommonPrefix `xml:"CommonPrefixes,omitempty"`
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}
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type ObjectInfo struct {
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Key string `xml:"Key"`
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LastModified time.Time `xml:"LastModified"`
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ETag string `xml:"ETag"`
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Size int64 `xml:"Size"`
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StorageClass string `xml:"StorageClass"`
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Owner Owner `xml:"Owner"`
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}
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type CommonPrefix struct {
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Prefix string `xml:"Prefix"`
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}
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type InitiateMultipartUploadResult struct {
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XMLName xml.Name `xml:"InitiateMultipartUploadResult"`
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Xmlns string `xml:"xmlns,attr"`
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Bucket string `xml:"Bucket"`
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Key string `xml:"Key"`
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UploadID string `xml:"UploadId"`
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}
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type ListMultipartUploadsResult struct {
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XMLName xml.Name `xml:"ListMultipartUploadsResult"`
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Xmlns string `xml:"xmlns,attr"`
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Bucket string `xml:"Bucket"`
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KeyMarker string `xml:"KeyMarker"`
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UploadIdMarker string `xml:"UploadIdMarker"`
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NextKeyMarker string `xml:"NextKeyMarker"`
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NextUploadIdMarker string `xml:"NextUploadIdMarker"`
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MaxUploads int `xml:"MaxUploads"`
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IsTruncated bool `xml:"IsTruncated"`
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Uploads []Upload `xml:"Upload"`
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CommonPrefixes []CommonPrefix `xml:"CommonPrefixes,omitempty"`
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}
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type Upload struct {
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Key string `xml:"Key"`
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UploadID string `xml:"UploadId"`
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Initiator Owner `xml:"Initiator"`
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Owner Owner `xml:"Owner"`
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StorageClass string `xml:"StorageClass"`
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Initiated time.Time `xml:"Initiated"`
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}
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type ListPartsResult struct {
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XMLName xml.Name `xml:"ListPartsResult"`
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Xmlns string `xml:"xmlns,attr"`
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Bucket string `xml:"Bucket"`
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Key string `xml:"Key"`
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UploadID string `xml:"UploadId"`
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PartNumberMarker int `xml:"PartNumberMarker"`
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NextPartNumberMarker int `xml:"NextPartNumberMarker"`
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MaxParts int `xml:"MaxParts"`
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IsTruncated bool `xml:"IsTruncated"`
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Parts []Part `xml:"Part"`
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}
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type Part struct {
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PartNumber int `xml:"PartNumber"`
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LastModified time.Time `xml:"LastModified"`
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ETag string `xml:"ETag"`
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Size int64 `xml:"Size"`
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}
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type CompleteMultipartUpload struct {
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XMLName xml.Name `xml:"CompleteMultipartUpload"`
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Parts []Part `xml:"Part"`
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}
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type CompleteMultipartUploadResult struct {
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XMLName xml.Name `xml:"CompleteMultipartUploadResult"`
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Xmlns string `xml:"xmlns,attr"`
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Location string `xml:"Location"`
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Bucket string `xml:"Bucket"`
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Key string `xml:"Key"`
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ETag string `xml:"ETag"`
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}
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type ErrorResponse struct {
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XMLName xml.Name `xml:"Error"`
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Code string `xml:"Code"`
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Message string `xml:"Message"`
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Resource string `xml:"Resource"`
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RequestID string `xml:"RequestId"`
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}
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// s3AuthMiddleware S3认证中间件（简化版）
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func (h *S3Handler) s3AuthMiddleware(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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// 简化的认证实现，实际应该验证AWS Signature
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// 这里只做基本的header检查
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authHeader := r.Header.Get("Authorization")
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if authHeader == "" {
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// 允许匿名访问（用于测试）
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// 在生产环境中应该要求认证
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}
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next.ServeHTTP(w, r)
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})
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}
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// handleListBuckets 处理列出所有存储桶请求
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func (h *S3Handler) handleListBuckets(w http.ResponseWriter, r *http.Request) {
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buckets := h.bucketManager.GetAllBuckets()
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result := ListBucketsResult{
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Xmlns: "http://s3.amazonaws.com/doc/2006-03-01/",
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Owner: Owner{
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ID: "s3-balance",
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DisplayName: "S3 Balance Service",
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},
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Buckets: Buckets{
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Bucket: make([]BucketInfo, 0, len(buckets)),
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},
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}
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for _, b := range buckets {
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if b.IsAvailable() {
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result.Buckets.Bucket = append(result.Buckets.Bucket, BucketInfo{
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Name: b.Config.Name,
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CreationDate: time.Now().Add(-24 * time.Hour), // 模拟创建时间
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})
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}
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}
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h.sendXMLResponse(w, http.StatusOK, result)
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}
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// handleBucketOperations 处理存储桶相关操作
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func (h *S3Handler) handleBucketOperations(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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bucketName := vars["bucket"]
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switch r.Method {
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case "GET":
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h.handleListObjects(w, r, bucketName)
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case "HEAD":
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h.handleHeadBucket(w, r, bucketName)
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case "PUT":
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h.handleCreateBucket(w, r, bucketName)
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case "DELETE":
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h.handleDeleteBucket(w, r, bucketName)
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}
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}
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// handleListObjects 列出存储桶中的对象
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func (h *S3Handler) handleListObjects(w http.ResponseWriter, r *http.Request, bucketName string) {
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// 检查bucket是否存在
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if _, ok := h.bucketManager.GetBucket(bucketName); !ok {
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h.sendS3Error(w, "NoSuchBucket", "The specified bucket does not exist", bucketName)
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return
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}
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// 解析查询参数
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prefix := r.URL.Query().Get("prefix")
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marker := r.URL.Query().Get("marker")
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maxKeysStr := r.URL.Query().Get("max-keys")
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delimiter := r.URL.Query().Get("delimiter")
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maxKeys := 1000
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if maxKeysStr != "" {
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if mk, err := strconv.Atoi(maxKeysStr); err == nil {
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maxKeys = mk
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}
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}
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// 从存储中获取对象列表
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objects, err := h.storage.ListObjects(bucketName, prefix, marker, maxKeys)
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if err != nil {
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h.sendS3Error(w, "InternalError", "Internal server error", bucketName)
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return
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}
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result := ListBucketResult{
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Xmlns: "http://s3.amazonaws.com/doc/2006-03-01/",
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Name: bucketName,
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Prefix: prefix,
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Marker: marker,
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MaxKeys: maxKeys,
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IsTruncated: false, // 简化实现
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Contents: make([]ObjectInfo, 0),
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}
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// 处理分隔符逻辑
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if delimiter != "" {
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// 简化的分隔符处理
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result.CommonPrefixes = make([]CommonPrefix, 0)
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}
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for _, obj := range objects {
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result.Contents = append(result.Contents, ObjectInfo{
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Key: obj.Key,
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LastModified: obj.UpdatedAt,
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ETag: fmt.Sprintf("\"%x\"", obj.ID), // 简化的ETag
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Size: obj.Size,
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StorageClass: "STANDARD",
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Owner: Owner{
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ID: "s3-balance",
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DisplayName: "S3 Balance Service",
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},
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})
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}
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h.sendXMLResponse(w, http.StatusOK, result)
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}
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// handleHeadBucket 检查存储桶是否存在
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func (h *S3Handler) handleHeadBucket(w http.ResponseWriter, r *http.Request, bucketName string) {
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if _, ok := h.bucketManager.GetBucket(bucketName); !ok {
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w.WriteHeader(http.StatusNotFound)
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return
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}
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w.WriteHeader(http.StatusOK)
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}
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// handleCreateBucket 创建存储桶（虚拟实现）
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func (h *S3Handler) handleCreateBucket(w http.ResponseWriter, r *http.Request, bucketName string) {
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// 在负载均衡场景下，不真正创建bucket，只返回成功
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// 实际的bucket应该在配置中预先定义
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w.Header().Set("Location", "/" + bucketName)
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w.WriteHeader(http.StatusOK)
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}
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// handleDeleteBucket 删除存储桶（虚拟实现）
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func (h *S3Handler) handleDeleteBucket(w http.ResponseWriter, r *http.Request, bucketName string) {
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// 在负载均衡场景下，不真正删除bucket
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w.WriteHeader(http.StatusNoContent)
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}
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// handleObjectOperations 处理对象相关操作
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func (h *S3Handler) handleObjectOperations(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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bucketName := vars["bucket"]
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key := vars["key"]
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switch r.Method {
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case "GET":
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h.handleGetObject(w, r, bucketName, key)
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case "HEAD":
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h.handleHeadObject(w, r, bucketName, key)
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case "PUT":
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h.handlePutObject(w, r, bucketName, key)
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case "DELETE":
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h.handleDeleteObject(w, r, bucketName, key)
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}
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}
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// handleGetObject 获取对象（默认使用预签名URL重定向）
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func (h *S3Handler) handleGetObject(w http.ResponseWriter, r *http.Request, bucketName string, key string) {
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// 查找对象所在的实际存储桶
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actualBucketName, err := h.storage.FindObjectBucket(key)
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if err != nil {
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h.sendS3Error(w, "NoSuchKey", "The specified key does not exist", key)
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return
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}
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bucket, ok := h.bucketManager.GetBucket(actualBucketName)
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if !ok {
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h.sendS3Error(w, "InternalError", "Internal server error", bucketName)
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return
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}
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// 生成预签名下载URL
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downloadInfo, err := h.presigner.GenerateDownloadURL(
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context.Background(),
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bucket,
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key,
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)
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if err != nil {
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h.sendS3Error(w, "InternalError", "Failed to generate download URL", key)
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return
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}
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// 默认使用预签名重定向模式，只有明确指定时才使用代理模式
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if r.URL.Query().Get("proxy") == "true" {
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// 代理模式：服务器下载内容并返回给客户端
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resp, err := http.Get(downloadInfo.URL)
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if err != nil {
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h.sendS3Error(w, "InternalError", "Failed to fetch object", key)
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return
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}
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defer resp.Body.Close()
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// 复制响应头
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for k, v := range resp.Header {
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w.Header()[k] = v
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}
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// 复制响应体
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io.Copy(w, resp.Body)
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} else {
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// 重定向模式：返回302重定向到预签名URL（默认）
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http.Redirect(w, r, downloadInfo.URL, http.StatusFound)
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}
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}
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// handleHeadObject 获取对象元数据
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func (h *S3Handler) handleHeadObject(w http.ResponseWriter, r *http.Request, bucketName string, key string) {
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// 从存储中获取对象信息
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obj, err := h.storage.GetObjectInfo(key)
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if err != nil {
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w.WriteHeader(http.StatusNotFound)
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return
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}
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w.Header().Set("Content-Length", strconv.FormatInt(obj.Size, 10))
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w.Header().Set("Last-Modified", obj.UpdatedAt.Format(http.TimeFormat))
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w.Header().Set("ETag", fmt.Sprintf("\"%x\"", obj.ID))
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w.Header().Set("Content-Type", "application/octet-stream")
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w.WriteHeader(http.StatusOK)
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}
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// handlePutObject 上传对象（默认使用预签名URL重定向）
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func (h *S3Handler) handlePutObject(w http.ResponseWriter, r *http.Request, bucketName string, key string) {
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// 获取内容长度
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contentLength := r.ContentLength
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if contentLength < 0 {
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h.sendS3Error(w, "MissingContentLength", "Content-Length header is required", key)
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return
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}
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// 选择目标存储桶
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targetBucket, err := h.balancer.SelectBucket(key, contentLength)
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if err != nil {
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h.sendS3Error(w, "InsufficientStorage", "No bucket has enough space", key)
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return
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}
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// 生成预签名上传URL
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uploadInfo, err := h.presigner.GenerateUploadURL(
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context.Background(),
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targetBucket,
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key,
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r.Header.Get("Content-Type"),
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nil, // metadata
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)
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if err != nil {
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h.sendS3Error(w, "InternalError", "Failed to generate upload URL", key)
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return
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}
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// 默认使用预签名重定向模式，只有明确指定时才使用代理模式
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if r.URL.Query().Get("proxy") == "true" {
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// 代理模式：读取请求体并上传到预签名URL
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// 创建新的请求
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req, err := http.NewRequest(uploadInfo.Method, uploadInfo.URL, r.Body)
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if err != nil {
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h.sendS3Error(w, "InternalError", "Failed to create upload request", key)
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return
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}
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// 设置必要的头
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req.ContentLength = contentLength
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if ct := r.Header.Get("Content-Type"); ct != "" {
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req.Header.Set("Content-Type", ct)
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}
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// 添加预签名URL所需的额外头
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for k, v := range uploadInfo.Headers {
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req.Header.Set(k, v)
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}
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// 执行上传
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client := &http.Client{Timeout: 30 * time.Minute}
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resp, err := client.Do(req)
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if err != nil {
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h.sendS3Error(w, "InternalError", "Failed to upload object", key)
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return
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}
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defer resp.Body.Close()
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if resp.StatusCode >= 200 && resp.StatusCode < 300 {
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// 记录对象元数据
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h.storage.RecordObject(key, targetBucket.Config.Name, contentLength, nil)
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targetBucket.UpdateUsedSize(contentLength)
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// 返回成功响应
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w.Header().Set("ETag", fmt.Sprintf("\"%x\"", time.Now().UnixNano()))
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w.WriteHeader(http.StatusOK)
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} else {
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h.sendS3Error(w, "InternalError", "Upload failed", key)
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}
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} else {
|
||
// 重定向模式：返回307临时重定向让客户端直接上传（默认）
|
||
w.Header().Set("Location", uploadInfo.URL)
|
||
w.WriteHeader(http.StatusTemporaryRedirect)
|
||
}
|
||
}
|
||
|
||
// handleDeleteObject 删除对象
|
||
func (h *S3Handler) handleDeleteObject(w http.ResponseWriter, r *http.Request, bucketName string, key string) {
|
||
// 查找对象所在的实际存储桶
|
||
actualBucketName, err := h.storage.FindObjectBucket(key)
|
||
if err != nil {
|
||
// 对象不存在，S3规范要求返回204
|
||
w.WriteHeader(http.StatusNoContent)
|
||
return
|
||
}
|
||
|
||
bucket, ok := h.bucketManager.GetBucket(actualBucketName)
|
||
if !ok {
|
||
h.sendS3Error(w, "InternalError", "Internal server error", bucketName)
|
||
return
|
||
}
|
||
|
||
// 生成预签名删除URL
|
||
deleteInfo, err := h.presigner.GenerateDeleteURL(
|
||
context.Background(),
|
||
bucket,
|
||
key,
|
||
)
|
||
if err != nil {
|
||
h.sendS3Error(w, "InternalError", "Failed to generate delete URL", key)
|
||
return
|
||
}
|
||
|
||
// 执行删除
|
||
req, _ := http.NewRequest("DELETE", deleteInfo.URL, nil)
|
||
client := &http.Client{Timeout: 30 * time.Second}
|
||
resp, err := client.Do(req)
|
||
if err != nil {
|
||
h.sendS3Error(w, "InternalError", "Failed to delete object", key)
|
||
return
|
||
}
|
||
defer resp.Body.Close()
|
||
|
||
// 从数据库中删除对象记录
|
||
h.storage.DeleteObject(key)
|
||
|
||
// S3规范要求删除操作总是返回204
|
||
w.WriteHeader(http.StatusNoContent)
|
||
}
|
||
|
||
// handleMultipartUpload 初始化分片上传
|
||
func (h *S3Handler) handleMultipartUpload(w http.ResponseWriter, r *http.Request) {
|
||
vars := mux.Vars(r)
|
||
key := vars["key"]
|
||
|
||
// 选择目标存储桶
|
||
targetBucket, err := h.balancer.SelectBucket(key, 0) // 分片上传时不检查空间
|
||
if err != nil {
|
||
h.sendS3Error(w, "InternalError", "Failed to select bucket for upload", key)
|
||
return
|
||
}
|
||
|
||
// 初始化分片上传
|
||
ctx := context.Background()
|
||
createResp, err := targetBucket.Client.CreateMultipartUpload(ctx, &s3.CreateMultipartUploadInput{
|
||
Bucket: aws.String(targetBucket.Config.Name),
|
||
Key: aws.String(key),
|
||
})
|
||
if err != nil {
|
||
h.sendS3Error(w, "InternalError", "Failed to initiate multipart upload", key)
|
||
return
|
||
}
|
||
|
||
result := InitiateMultipartUploadResult{
|
||
Xmlns: "http://s3.amazonaws.com/doc/2006-03-01/",
|
||
Bucket: targetBucket.Config.Name,
|
||
Key: key,
|
||
UploadID: *createResp.UploadId,
|
||
}
|
||
|
||
h.sendXMLResponse(w, http.StatusOK, result)
|
||
}
|
||
|
||
// handleListMultipartUploads 列出分片上传
|
||
func (h *S3Handler) handleListMultipartUploads(w http.ResponseWriter, r *http.Request) {
|
||
vars := mux.Vars(r)
|
||
bucketName := vars["bucket"]
|
||
key := vars["key"]
|
||
|
||
// 检查bucket是否存在
|
||
if _, ok := h.bucketManager.GetBucket(bucketName); !ok {
|
||
h.sendS3Error(w, "NoSuchBucket", "The specified bucket does not exist", bucketName)
|
||
return
|
||
}
|
||
|
||
// 简化实现：返回空列表
|
||
result := ListMultipartUploadsResult{
|
||
Xmlns: "http://s3.amazonaws.com/doc/2006-03-01/",
|
||
Bucket: bucketName,
|
||
KeyMarker: key,
|
||
MaxUploads: 1000,
|
||
IsTruncated: false,
|
||
Uploads: make([]Upload, 0),
|
||
}
|
||
|
||
h.sendXMLResponse(w, http.StatusOK, result)
|
||
}
|
||
|
||
// handleListMultipartParts 列出分片上传的分片
|
||
func (h *S3Handler) handleListMultipartParts(w http.ResponseWriter, r *http.Request) {
|
||
vars := mux.Vars(r)
|
||
bucketName := vars["bucket"]
|
||
key := vars["key"]
|
||
uploadID := r.URL.Query().Get("uploadId")
|
||
|
||
// 检查bucket是否存在
|
||
if _, ok := h.bucketManager.GetBucket(bucketName); !ok {
|
||
h.sendS3Error(w, "NoSuchBucket", "The specified bucket does not exist", bucketName)
|
||
return
|
||
}
|
||
|
||
// 简化实现：返回空列表
|
||
result := ListPartsResult{
|
||
Xmlns: "http://s3.amazonaws.com/doc/2006-03-01/",
|
||
Bucket: bucketName,
|
||
Key: key,
|
||
UploadID: uploadID,
|
||
PartNumberMarker: 0,
|
||
MaxParts: 1000,
|
||
IsTruncated: false,
|
||
Parts: make([]Part, 0),
|
||
}
|
||
|
||
h.sendXMLResponse(w, http.StatusOK, result)
|
||
}
|
||
|
||
// handleCompleteMultipartUpload 完成分片上传
|
||
func (h *S3Handler) handleCompleteMultipartUpload(w http.ResponseWriter, r *http.Request) {
|
||
vars := mux.Vars(r)
|
||
bucketName := vars["bucket"]
|
||
key := vars["key"]
|
||
uploadID := r.URL.Query().Get("uploadId")
|
||
|
||
// 查找对象所在的实际存储桶（简化实现，使用配置的bucket）
|
||
bucket, ok := h.bucketManager.GetBucket(bucketName)
|
||
if !ok {
|
||
h.sendS3Error(w, "NoSuchBucket", "The specified bucket does not exist", bucketName)
|
||
return
|
||
}
|
||
|
||
// 解析请求体以获取分片列表
|
||
var completeReq CompleteMultipartUpload
|
||
body, _ := io.ReadAll(r.Body)
|
||
xml.Unmarshal(body, &completeReq)
|
||
|
||
// 完成分片上传
|
||
ctx := context.Background()
|
||
var parts []types.CompletedPart
|
||
for _, part := range completeReq.Parts {
|
||
parts = append(parts, types.CompletedPart{
|
||
ETag: aws.String(part.ETag),
|
||
PartNumber: aws.Int32(int32(part.PartNumber)),
|
||
})
|
||
}
|
||
|
||
completeResp, err := bucket.Client.CompleteMultipartUpload(ctx, &s3.CompleteMultipartUploadInput{
|
||
Bucket: aws.String(bucket.Config.Name),
|
||
Key: aws.String(key),
|
||
UploadId: aws.String(uploadID),
|
||
MultipartUpload: &types.CompletedMultipartUpload{
|
||
Parts: parts,
|
||
},
|
||
})
|
||
if err != nil {
|
||
h.sendS3Error(w, "InternalError", "Failed to complete multipart upload", key)
|
||
return
|
||
}
|
||
|
||
result := CompleteMultipartUploadResult{
|
||
Xmlns: "http://s3.amazonaws.com/doc/2006-03-01/",
|
||
Location: "/" + bucket.Config.Name + "/" + key,
|
||
Bucket: bucket.Config.Name,
|
||
Key: key,
|
||
ETag: *completeResp.ETag,
|
||
}
|
||
|
||
// 记录对象元数据（简化：假设总大小）
|
||
h.storage.RecordObject(key, bucket.Config.Name, 0, nil)
|
||
|
||
h.sendXMLResponse(w, http.StatusOK, result)
|
||
}
|
||
|
||
// handleAbortMultipartUpload 中止分片上传
|
||
func (h *S3Handler) handleAbortMultipartUpload(w http.ResponseWriter, r *http.Request) {
|
||
vars := mux.Vars(r)
|
||
bucketName := vars["bucket"]
|
||
key := vars["key"]
|
||
uploadID := r.URL.Query().Get("uploadId")
|
||
|
||
// 查找对象所在的实际存储桶（简化实现，使用配置的bucket）
|
||
bucket, ok := h.bucketManager.GetBucket(bucketName)
|
||
if !ok {
|
||
h.sendS3Error(w, "NoSuchBucket", "The specified bucket does not exist", bucketName)
|
||
return
|
||
}
|
||
|
||
// 中止分片上传
|
||
ctx := context.Background()
|
||
_, err := bucket.Client.AbortMultipartUpload(ctx, &s3.AbortMultipartUploadInput{
|
||
Bucket: aws.String(bucket.Config.Name),
|
||
Key: aws.String(key),
|
||
UploadId: aws.String(uploadID),
|
||
})
|
||
if err != nil {
|
||
h.sendS3Error(w, "InternalError", "Failed to abort multipart upload", key)
|
||
return
|
||
}
|
||
|
||
w.WriteHeader(http.StatusNoContent)
|
||
}
|
||
|
||
// sendXMLResponse 发送XML响应
|
||
func (h *S3Handler) sendXMLResponse(w http.ResponseWriter, statusCode int, data interface{}) {
|
||
w.Header().Set("Content-Type", "application/xml")
|
||
w.WriteHeader(statusCode)
|
||
|
||
encoder := xml.NewEncoder(w)
|
||
encoder.Indent("", " ")
|
||
|
||
// 写入XML声明
|
||
w.Write([]byte(xml.Header))
|
||
|
||
if err := encoder.Encode(data); err != nil {
|
||
// 如果编码失败，记录错误
|
||
http.Error(w, "Internal Server Error", http.StatusInternalServerError)
|
||
}
|
||
}
|
||
|
||
// sendS3Error 发送S3错误响应
|
||
func (h *S3Handler) sendS3Error(w http.ResponseWriter, code string, message string, resource string) {
|
||
errorResp := ErrorResponse{
|
||
Code: code,
|
||
Message: message,
|
||
Resource: resource,
|
||
RequestID: fmt.Sprintf("%d", time.Now().UnixNano()),
|
||
}
|
||
|
||
statusCode := http.StatusBadRequest
|
||
switch code {
|
||
case "NoSuchBucket", "NoSuchKey":
|
||
statusCode = http.StatusNotFound
|
||
case "BucketAlreadyExists":
|
||
statusCode = http.StatusConflict
|
||
case "InvalidAccessKeyId", "SignatureDoesNotMatch":
|
||
statusCode = http.StatusForbidden
|
||
case "InternalError":
|
||
statusCode = http.StatusInternalServerError
|
||
case "InsufficientStorage":
|
||
statusCode = http.StatusInsufficientStorage
|
||
}
|
||
|
||
h.sendXMLResponse(w, statusCode, errorResp)
|
||
}
|
||
|
||
// 辅助函数：解析S3路径
|
||
func parseS3Path(requestPath string) (bucket string, key string) {
|
||
requestPath = strings.TrimPrefix(requestPath, "/")
|
||
parts := strings.SplitN(requestPath, "/", 2)
|
||
|
||
if len(parts) > 0 {
|
||
bucket = parts[0]
|
||
}
|
||
if len(parts) > 1 {
|
||
key = parts[1]
|
||
}
|
||
|
||
return bucket, key
|
||
}
|
||
|
||
// 辅助函数：URL编码/解码
|
||
func urlEncodePath(p string) string {
|
||
return strings.ReplaceAll(url.QueryEscape(p), "+", "%20")
|
||
}
|
||
|
||
func urlDecodePath(p string) string {
|
||
decoded, _ := url.QueryUnescape(p)
|
||
return decoded
|
||
}
|