Carlos Florêncio
114 lines
3.5 KiB
Go
114 lines
3.5 KiB
Go
package backups
|
|
|
|
import (
|
|
"errors"
|
|
"net/http"
|
|
"os"
|
|
"strings"
|
|
|
|
"github.com/gin-gonic/gin"
|
|
)
|
|
|
|
// RegisterRoutes wires the backups endpoints onto g (typically the
|
|
// /api/v1/system group).
|
|
func RegisterRoutes(g *gin.RouterGroup, svc *Service) {
|
|
g.GET("/backups", HandleList(svc))
|
|
g.POST("/backups", HandleCreate(svc))
|
|
g.GET("/backups/:name/download", HandleDownload(svc))
|
|
g.POST("/backups/:name/restore", HandleRestore(svc))
|
|
g.DELETE("/backups/:name", HandleDelete(svc))
|
|
}
|
|
|
|
// HandleList returns GET /api/v1/system/backups -> { snapshots: [...] }.
|
|
func HandleList(svc *Service) gin.HandlerFunc {
|
|
return func(c *gin.Context) {
|
|
snaps, err := svc.List()
|
|
if err != nil {
|
|
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
|
return
|
|
}
|
|
c.JSON(http.StatusOK, gin.H{"snapshots": snaps})
|
|
}
|
|
}
|
|
|
|
// HandleCreate returns POST /api/v1/system/backups -> 202 { job_id }.
|
|
func HandleCreate(svc *Service) gin.HandlerFunc {
|
|
return func(c *gin.Context) {
|
|
id := svc.Create(c.Request.Context())
|
|
c.JSON(http.StatusAccepted, gin.H{"job_id": id})
|
|
}
|
|
}
|
|
|
|
// HandleDownload returns GET /api/v1/system/backups/:name/download. Streams
|
|
// the file as an attachment.
|
|
func HandleDownload(svc *Service) gin.HandlerFunc {
|
|
return func(c *gin.Context) {
|
|
name := c.Param("name")
|
|
if _, err := svc.resolveSnapshotPath(name); err != nil {
|
|
c.JSON(http.StatusBadRequest, gin.H{"error": "invalid name"})
|
|
return
|
|
}
|
|
f, size, err := svc.OpenForDownload(name)
|
|
if err != nil {
|
|
c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
|
|
return
|
|
}
|
|
defer func() { _ = f.Close() }()
|
|
c.Header("Content-Disposition", `attachment; filename="`+strings.ReplaceAll(name, `"`, `\"`)+`"`)
|
|
c.Header("Content-Type", "application/octet-stream")
|
|
c.DataFromReader(http.StatusOK, size, "application/octet-stream", f, nil)
|
|
}
|
|
}
|
|
|
|
// HandleRestore returns POST /api/v1/system/backups/:name/restore. Body
|
|
// must include {"confirm":"RESTORE"}.
|
|
func HandleRestore(svc *Service) gin.HandlerFunc {
|
|
return func(c *gin.Context) {
|
|
name := c.Param("name")
|
|
if _, err := svc.resolveSnapshotPath(name); err != nil {
|
|
c.JSON(http.StatusBadRequest, gin.H{"error": "invalid name"})
|
|
return
|
|
}
|
|
var body struct {
|
|
Confirm string `json:"confirm"`
|
|
}
|
|
_ = c.ShouldBindJSON(&body)
|
|
id, err := svc.Restore(c.Request.Context(), name, body.Confirm)
|
|
if err != nil {
|
|
if errors.Is(err, errRestoreConfirm) {
|
|
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
|
|
return
|
|
}
|
|
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
|
return
|
|
}
|
|
c.JSON(http.StatusAccepted, gin.H{"job_id": id})
|
|
}
|
|
}
|
|
|
|
// HandleDelete returns DELETE /api/v1/system/backups/:name -> 204.
|
|
func HandleDelete(svc *Service) gin.HandlerFunc {
|
|
return func(c *gin.Context) {
|
|
name := c.Param("name")
|
|
if _, err := svc.resolveSnapshotPath(name); err != nil {
|
|
c.JSON(http.StatusBadRequest, gin.H{"error": "invalid name"})
|
|
return
|
|
}
|
|
if err := svc.Delete(name); err != nil {
|
|
// Differentiate by cause: pre-reset rejections and not-found
|
|
// map to client-visible statuses; anything else (filesystem
|
|
// errors etc.) is a 500 so we don't leak raw storage detail.
|
|
switch {
|
|
case strings.Contains(err.Error(), "cannot delete pre-reset"):
|
|
c.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
|
|
case errors.Is(err, os.ErrNotExist):
|
|
c.JSON(http.StatusNotFound, gin.H{"error": "snapshot not found"})
|
|
default:
|
|
c.JSON(http.StatusInternalServerError, gin.H{"error": "delete failed"})
|
|
}
|
|
return
|
|
}
|
|
c.Status(http.StatusNoContent)
|
|
}
|
|
}
|