257 lines
7.5 KiB
Go
257 lines
7.5 KiB
Go
package handler
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import (
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"context"
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"errors"
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"fmt"
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"io"
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"net/url"
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"strings"
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"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/cache"
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"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/data"
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"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/handler/middleware"
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"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/logs"
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"git.frostfs.info/TrueCloudLab/frostfs-http-gw/resolver"
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"git.frostfs.info/TrueCloudLab/frostfs-http-gw/response"
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"git.frostfs.info/TrueCloudLab/frostfs-http-gw/tree"
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"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
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apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
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"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
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cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
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"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
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oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
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"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool"
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"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
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"github.com/valyala/fasthttp"
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"go.uber.org/zap"
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)
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type Config interface {
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DefaultTimestamp() bool
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ZipCompression() bool
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ClientCut() bool
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BufferMaxSizeForPut() uint64
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NamespaceHeader() string
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}
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type Handler struct {
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log *zap.Logger
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pool *pool.Pool
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ownerID *user.ID
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config Config
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containerResolver *resolver.ContainerResolver
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tree *tree.Tree
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cache *cache.BucketCache
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}
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func New(params *utils.AppParams, config Config, tree *tree.Tree) *Handler {
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return &Handler{
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log: params.Logger,
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pool: params.Pool,
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ownerID: params.Owner,
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config: config,
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containerResolver: params.Resolver,
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tree: tree,
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cache: params.Cache,
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}
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}
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// byAddress is a wrapper for function (e.g. request.headObject, request.receiveFile) that
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// prepares request and object address to it.
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func (h *Handler) byAddress(c *fasthttp.RequestCtx, f func(context.Context, request, oid.Address)) {
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var (
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idCnr, _ = c.UserValue("cid").(string)
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idObj, _ = c.UserValue("oid").(string)
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log = h.log.With(zap.String("cid", idCnr), zap.String("oid", idObj))
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)
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ctx := utils.GetContextFromRequest(c)
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bktInfo, err := h.getBucketInfo(ctx, idCnr, log)
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if err != nil {
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logAndSendBucketError(c, log, err)
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return
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}
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objID := new(oid.ID)
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if err = objID.DecodeString(idObj); err != nil {
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log.Error(logs.WrongObjectID, zap.Error(err))
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response.Error(c, "wrong object id", fasthttp.StatusBadRequest)
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return
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}
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var addr oid.Address
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addr.SetContainer(bktInfo.CID)
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addr.SetObject(*objID)
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f(ctx, *h.newRequest(c, log), addr)
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}
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// byObjectName is a wrapper for function (e.g. request.headObject, request.receiveFile) that
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// prepares request and object address to it.
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func (h *Handler) byObjectName(req *fasthttp.RequestCtx, f func(context.Context, request, oid.Address)) {
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var (
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bucketname = req.UserValue("cid").(string)
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key = req.UserValue("oid").(string)
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log = h.log.With(zap.String("bucketname", bucketname), zap.String("key", key))
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)
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ctx := utils.GetContextFromRequest(req)
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bktInfo, err := h.getBucketInfo(ctx, bucketname, log)
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if err != nil {
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logAndSendBucketError(req, log, err)
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return
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}
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foundOid, err := h.tree.GetLatestVersion(ctx, &bktInfo.CID, key)
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if err != nil {
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if errors.Is(err, tree.ErrNodeAccessDenied) {
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response.Error(req, "Access Denied", fasthttp.StatusForbidden)
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return
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}
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log.Error(logs.GetLatestObjectVersion, zap.Error(err))
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response.Error(req, "object wasn't found", fasthttp.StatusNotFound)
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return
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}
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if foundOid.DeleteMarker {
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log.Error(logs.ObjectWasDeleted)
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response.Error(req, "object deleted", fasthttp.StatusNotFound)
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return
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}
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var addr oid.Address
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addr.SetContainer(bktInfo.CID)
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addr.SetObject(foundOid.OID)
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f(ctx, *h.newRequest(req, log), addr)
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}
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// byAttribute is a wrapper similar to byAddress.
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func (h *Handler) byAttribute(c *fasthttp.RequestCtx, f func(context.Context, request, oid.Address)) {
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scid, _ := c.UserValue("cid").(string)
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key, _ := c.UserValue("attr_key").(string)
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val, _ := c.UserValue("attr_val").(string)
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key, err := url.QueryUnescape(key)
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if err != nil {
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h.log.Error(logs.FailedToUnescapeQuery, zap.String("cid", scid), zap.String("attr_key", key), zap.Uint64("id", c.ID()), zap.Error(err))
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response.Error(c, "could not unescape attr_key: "+err.Error(), fasthttp.StatusBadRequest)
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return
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}
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val, err = url.QueryUnescape(val)
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if err != nil {
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h.log.Error(logs.FailedToUnescapeQuery, zap.String("cid", scid), zap.String("attr_val", val), zap.Uint64("id", c.ID()), zap.Error(err))
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response.Error(c, "could not unescape attr_val: "+err.Error(), fasthttp.StatusBadRequest)
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return
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}
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log := h.log.With(zap.String("cid", scid), zap.String("attr_key", key), zap.String("attr_val", val))
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ctx := utils.GetContextFromRequest(c)
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bktInfo, err := h.getBucketInfo(ctx, scid, log)
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if err != nil {
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logAndSendBucketError(c, log, err)
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return
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}
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res, err := h.search(ctx, &bktInfo.CID, key, val, object.MatchStringEqual)
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if err != nil {
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log.Error(logs.CouldNotSearchForObjects, zap.Error(err))
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response.Error(c, "could not search for objects: "+err.Error(), fasthttp.StatusBadRequest)
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return
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}
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defer res.Close()
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buf := make([]oid.ID, 1)
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n, err := res.Read(buf)
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if n == 0 {
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if errors.Is(err, io.EOF) {
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log.Error(logs.ObjectNotFound, zap.Error(err))
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response.Error(c, "object not found", fasthttp.StatusNotFound)
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return
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}
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log.Error(logs.ReadObjectListFailed, zap.Error(err))
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response.Error(c, "read object list failed: "+err.Error(), fasthttp.StatusBadRequest)
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return
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}
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var addrObj oid.Address
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addrObj.SetContainer(bktInfo.CID)
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addrObj.SetObject(buf[0])
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f(ctx, *h.newRequest(c, log), addrObj)
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}
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// resolveContainer decode container id, if it's not a valid container id
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// then trey to resolve name using provided resolver.
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func (h *Handler) resolveContainer(ctx context.Context, containerID string) (*cid.ID, error) {
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cnrID := new(cid.ID)
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err := cnrID.DecodeString(containerID)
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if err != nil {
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cnrID, err = h.containerResolver.Resolve(ctx, containerID)
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if err != nil && strings.Contains(err.Error(), "not found") {
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err = fmt.Errorf("%w: %s", new(apistatus.ContainerNotFound), err.Error())
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}
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}
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return cnrID, err
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}
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func (h *Handler) getBucketInfo(ctx context.Context, containerName string, log *zap.Logger) (*data.BucketInfo, error) {
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ns, err := middleware.GetNamespace(ctx)
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if err != nil {
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return nil, err
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}
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if bktInfo := h.cache.Get(ns, containerName); bktInfo != nil {
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return bktInfo, nil
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}
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cnrID, err := h.resolveContainer(ctx, containerName)
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if err != nil {
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return nil, err
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}
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bktInfo, err := h.readContainer(ctx, *cnrID)
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if err != nil {
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return nil, err
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}
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if err = h.cache.Put(bktInfo); err != nil {
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log.Warn(logs.CouldntPutBucketIntoCache,
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zap.String("bucket name", bktInfo.Name),
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zap.Stringer("bucket cid", bktInfo.CID),
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zap.Error(err))
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}
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return bktInfo, nil
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}
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func (h *Handler) readContainer(ctx context.Context, cnrID cid.ID) (*data.BucketInfo, error) {
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prm := pool.PrmContainerGet{ContainerID: cnrID}
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res, err := h.pool.GetContainer(ctx, prm)
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if err != nil {
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return nil, fmt.Errorf("get frostfs container '%s': %w", cnrID.String(), err)
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}
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bktInfo := &data.BucketInfo{
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CID: cnrID,
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Name: cnrID.EncodeToString(),
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}
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if domain := container.ReadDomain(res); domain.Name() != "" {
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bktInfo.Name = domain.Name()
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bktInfo.Zone = domain.Zone()
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}
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bktInfo.HomomorphicHashDisabled = container.IsHomomorphicHashingDisabled(res)
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return bktInfo, err
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}
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