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backup.go
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backup.go
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package api
import (
"fmt"
"net/http"
"net/url"
echo "github.com/labstack/echo/v4"
"github.com/swisscom/backman/log"
"github.com/swisscom/backman/service/util"
)
// swagger:route GET /api/v1/backups backup listBackups
// Lists all backup objects.
//
// produces:
// - application/json
//
// schemes: http, https
//
// responses:
// 200: backups
func (h *Handler) ListBackups(c echo.Context) error {
serviceType := c.QueryParam("service_type")
serviceName, err := url.QueryUnescape(c.Param("service_name"))
if err != nil {
log.Errorf("%v", err)
return c.JSON(http.StatusBadRequest, fmt.Sprintf("invalid service name: %v", err))
}
backups, err := h.Service.GetBackups(serviceType, serviceName)
if err != nil {
return c.JSON(http.StatusNotFound, err.Error())
}
return c.JSON(http.StatusOK, backups)
}
// swagger:route GET /api/v1/backup/{service_type}/{service_name} backup getBackups
// Returns a full backup object for given service.
//
// produces:
// - application/json
//
// schemes: http, https
//
// responses:
// 200: backup
func (h *Handler) GetBackups(c echo.Context) error {
serviceType := c.QueryParam("service_type")
serviceName, err := url.QueryUnescape(c.Param("service_name"))
if err != nil {
log.Errorf("%v", err)
return c.JSON(http.StatusBadRequest, fmt.Sprintf("invalid service name: %v", err))
}
backups, err := h.Service.GetBackups(serviceType, serviceName)
if err != nil {
return c.JSON(http.StatusNotFound, err.Error())
}
// there should only be 1 backup struct in there since we specified serviceName
if len(backups) != 1 {
return c.JSON(http.StatusNotFound, fmt.Errorf("backups not found"))
}
return c.JSON(http.StatusOK, backups[0])
}
// swagger:route GET /api/v1/backup/{service_type}/{service_name}/{filename} backup getBackup
// Returns a single backup file object for given service.
//
// produces:
// - application/json
//
// schemes: http, https
//
// responses:
// 200: backup
func (h *Handler) GetBackup(c echo.Context) error {
serviceType := c.Param("service_type")
serviceName, err := url.QueryUnescape(c.Param("service_name"))
if err != nil {
log.Errorf("%v", err)
return c.JSON(http.StatusBadRequest, fmt.Sprintf("invalid service name: %v", err))
}
filename, err := url.QueryUnescape(c.Param("file"))
if err != nil {
log.Errorf("%v", err)
return c.JSON(http.StatusBadRequest, fmt.Sprintf("invalid filename: %v", err))
}
backup, err := h.Service.GetBackup(serviceType, serviceName, filename)
if err != nil {
return c.JSON(http.StatusNotFound, err.Error())
}
if len(backup.Files) == 0 || len(backup.Files[0].Filename) == 0 {
return c.JSON(http.StatusNotFound, fmt.Errorf("file not found"))
}
return c.JSON(http.StatusOK, backup)
}
// swagger:route POST /api/v1/backup/{service_type}/{service_name} backup createBackup
// Creates a new backup for given service.
//
// produces:
// - application/json
//
// schemes: http, https
//
// responses:
// 202:
func (h *Handler) CreateBackup(c echo.Context) error {
serviceType := c.Param("service_type")
serviceName, err := url.QueryUnescape(c.Param("service_name"))
if err != nil {
log.Errorf("%v", err)
return c.JSON(http.StatusBadRequest, fmt.Sprintf("invalid service name: %v", err))
}
if !util.IsValidServiceType(serviceType) {
return c.JSON(http.StatusBadRequest, fmt.Sprintf("unsupported service type: %s", serviceType))
}
cfService := h.Service.GetService(serviceType, serviceName)
if len(cfService.Name) == 0 {
err := fmt.Errorf("could not find service [%s] to backup", serviceName)
log.Errorf("%v", err)
return c.JSON(http.StatusNotFound, err.Error())
}
go func() { // async
if err := h.Service.Backup(cfService); err != nil {
log.Errorf("requested backup for service [%s] failed: %v", serviceName, err)
}
}()
return c.JSON(http.StatusAccepted, nil)
}
// swagger:route GET /api/v1/backup/{service_type}/{service_name}/{filename}/download backup downloadBackup
// Download a backup file for given service.
//
// produces:
// - application/json
//
// schemes: http, https
//
// responses:
// 200:
func (h *Handler) DownloadBackup(c echo.Context) error {
serviceType := c.Param("service_type")
serviceName, err := url.QueryUnescape(c.Param("service_name"))
if err != nil {
log.Errorf("%v", err)
return c.JSON(http.StatusBadRequest, fmt.Sprintf("invalid service name: %v", err))
}
filename, err := url.QueryUnescape(c.Param("file"))
if err != nil {
log.Errorf("%v", err)
return c.JSON(http.StatusBadRequest, fmt.Sprintf("invalid filename: %v", err))
}
reader, err := h.Service.ReadBackup(serviceType, serviceName, filename)
if err != nil {
return c.JSON(http.StatusInternalServerError, err.Error())
}
c.Response().Header().Set(echo.HeaderContentDisposition, fmt.Sprintf(`attachment; filename="%s"`, filename))
return c.Stream(http.StatusOK, "application/gzip", reader)
}
// swagger:route DELETE /api/v1/backup/{service_type}/{service_name}/{filename} backup deleteBackup
// Deletes a backup file from S3 for given service.
//
// produces:
// - application/json
//
// schemes: http, https
//
// responses:
// 204:
func (h *Handler) DeleteBackup(c echo.Context) error {
serviceType := c.Param("service_type")
serviceName, err := url.QueryUnescape(c.Param("service_name"))
if err != nil {
log.Errorf("%v", err)
return c.JSON(http.StatusBadRequest, fmt.Sprintf("invalid service name: %v", err))
}
filename, err := url.QueryUnescape(c.Param("file"))
if err != nil {
log.Errorf("%v", err)
return c.JSON(http.StatusBadRequest, fmt.Sprintf("invalid filename: %v", err))
}
if err := h.Service.DeleteBackup(serviceType, serviceName, filename); err != nil {
return c.JSON(http.StatusInternalServerError, err.Error())
}
return c.NoContent(http.StatusNoContent)
}