mirror of
https://github.com/Rain-kl/OpenFlare.git
synced 2026-09-29 22:06:38 +08:00
ryan
77 lines
2.2 KiB
Go
77 lines
2.2 KiB
Go
// Copyright 2025 linux.do
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// Copyright 2026 Arctel.net
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// SPDX-License-Identifier: Apache-2.0
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package upload
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import (
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"errors"
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"net/http"
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"strconv"
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"github.com/Rain-kl/Wavelet/internal/db"
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"github.com/Rain-kl/Wavelet/internal/model"
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"github.com/Rain-kl/Wavelet/internal/storage"
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"github.com/gin-gonic/gin"
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"gorm.io/gorm"
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)
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// ServeFileByID 根据 ID 获取并提供已上传的文件
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// @Summary 获取已上传文件
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// @Description 根据文件 ID 获取并提供已上传的临时或正式文件，若配置了缓存则优先走本地缓存，否则从 S3 等后端存储读取并流式返回
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// @Tags upload
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// @Produce octet-stream
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// @Param id path string true "文件 ID"
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// @Success 200 {file} file "成功获取文件内容"
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// @Failure 400 {object} util.ResponseAny "文件 ID 格式错误"
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// @Failure 404 {object} util.ResponseAny "文件未找到"
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// @Failure 500 {object} util.ResponseAny "服务内部错误"
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// @Router /f/{id} [get]
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func ServeFileByID(c *gin.Context) {
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c.Header("X-Content-Type-Options", "nosniff")
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c.Header("Content-Security-Policy", "sandbox")
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idStr := c.Param("id")
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uploadID, err := strconv.ParseUint(idStr, 10, 64)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid upload ID"})
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return
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}
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var upload model.Upload
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if err := db.DB(c.Request.Context()).
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Where("id = ? AND status IN (?, ?)", uploadID, model.UploadStatusPending, model.UploadStatusUsed).
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First(&upload).Error; err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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c.AbortWithStatus(http.StatusNotFound)
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return
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}
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c.AbortWithStatus(http.StatusInternalServerError)
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return
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}
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if upload.StorageDriver == "local" || (upload.StorageDriver == "" && !storage.IsEnabled()) {
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c.File(upload.FilePath)
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return
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}
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// Retrieve file from S3 (via CDN if configured)
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obj, err := storage.GetObjectViaCache(c.Request.Context(), upload.FilePath)
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if err != nil {
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c.AbortWithStatus(http.StatusNotFound)
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return
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}
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// Cachefile
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if obj.CachePath != "" {
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c.File(obj.CachePath)
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return
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}
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// Stream from CDN/S3
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defer func() { _ = obj.Body.Close() }()
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// Respond with the file content
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c.DataFromReader(http.StatusOK, obj.ContentLength, obj.ContentType, obj.Body, nil)
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}
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