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Prevent panics with missing storage (#13164)
* The `.Use` of storageHandler before setting up the template renderer causes a panic if there is an error to log. * The error passed to `ctx.Error` in that case may contain sensitive information and should not be rendered to the end user. We should instead log the error and render a simple error message. * There is no handling of missing avatars and this needs a 404. Minio errors need to be mapped to standard golang errors such as os.ErrNotExist. * There is no logging when storage is set up. Related #13159 Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
parent
cb171dbd56
commit
91f2afdb54
4 changed files with 64 additions and 19 deletions
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@ -11,6 +11,7 @@ import (
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"os"
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"path/filepath"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/util"
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)
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@ -40,6 +41,7 @@ func NewLocalStorage(ctx context.Context, cfg interface{}) (ObjectStorage, error
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}
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config := configInterface.(LocalStorageConfig)
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log.Info("Creating new Local Storage at %s", config.Path)
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if err := os.MkdirAll(config.Path, os.ModePerm); err != nil {
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return nil, err
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}
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@ -13,6 +13,8 @@ import (
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"strings"
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"time"
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"code.gitea.io/gitea/modules/log"
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"github.com/minio/minio-go/v7"
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"github.com/minio/minio-go/v7/pkg/credentials"
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)
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@ -58,20 +60,42 @@ type MinioStorage struct {
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basePath string
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}
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func convertMinioErr(err error) error {
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if err == nil {
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return nil
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}
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errResp, ok := err.(minio.ErrorResponse)
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if !ok {
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return err
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}
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// Convert two responses to standard analogues
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switch errResp.Code {
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case "NoSuchKey":
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return os.ErrNotExist
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case "AccessDenied":
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return os.ErrPermission
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}
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return err
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}
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// NewMinioStorage returns a minio storage
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func NewMinioStorage(ctx context.Context, cfg interface{}) (ObjectStorage, error) {
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configInterface, err := toConfig(MinioStorageConfig{}, cfg)
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if err != nil {
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return nil, err
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return nil, convertMinioErr(err)
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}
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config := configInterface.(MinioStorageConfig)
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log.Info("Creating Minio storage at %s:%s with base path %s", config.Endpoint, config.Bucket, config.BasePath)
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minioClient, err := minio.New(config.Endpoint, &minio.Options{
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Creds: credentials.NewStaticV4(config.AccessKeyID, config.SecretAccessKey, ""),
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Secure: config.UseSSL,
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})
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if err != nil {
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return nil, err
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return nil, convertMinioErr(err)
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}
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if err := minioClient.MakeBucket(ctx, config.Bucket, minio.MakeBucketOptions{
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@ -80,7 +104,7 @@ func NewMinioStorage(ctx context.Context, cfg interface{}) (ObjectStorage, error
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// Check to see if we already own this bucket (which happens if you run this twice)
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exists, errBucketExists := minioClient.BucketExists(ctx, config.Bucket)
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if !exists || errBucketExists != nil {
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return nil, err
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return nil, convertMinioErr(err)
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}
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}
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@ -101,7 +125,7 @@ func (m *MinioStorage) Open(path string) (Object, error) {
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var opts = minio.GetObjectOptions{}
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object, err := m.client.GetObject(m.ctx, m.bucket, m.buildMinioPath(path), opts)
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if err != nil {
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return nil, err
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return nil, convertMinioErr(err)
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}
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return &minioObject{object}, nil
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}
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@ -117,7 +141,7 @@ func (m *MinioStorage) Save(path string, r io.Reader) (int64, error) {
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minio.PutObjectOptions{ContentType: "application/octet-stream"},
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)
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if err != nil {
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return 0, err
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return 0, convertMinioErr(err)
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}
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return uploadInfo.Size, nil
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}
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@ -159,19 +183,16 @@ func (m *MinioStorage) Stat(path string) (os.FileInfo, error) {
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minio.StatObjectOptions{},
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)
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if err != nil {
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if errResp, ok := err.(minio.ErrorResponse); ok {
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if errResp.Code == "NoSuchKey" {
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return nil, os.ErrNotExist
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}
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}
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return nil, err
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return nil, convertMinioErr(err)
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}
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return &minioFileInfo{info}, nil
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}
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// Delete delete a file
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func (m *MinioStorage) Delete(path string) error {
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return m.client.RemoveObject(m.ctx, m.bucket, m.buildMinioPath(path), minio.RemoveObjectOptions{})
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err := m.client.RemoveObject(m.ctx, m.bucket, m.buildMinioPath(path), minio.RemoveObjectOptions{})
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return convertMinioErr(err)
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}
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// URL gets the redirect URL to a file. The presigned link is valid for 5 minutes.
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@ -179,7 +200,8 @@ func (m *MinioStorage) URL(path, name string) (*url.URL, error) {
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reqParams := make(url.Values)
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// TODO it may be good to embed images with 'inline' like ServeData does, but we don't want to have to read the file, do we?
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reqParams.Set("response-content-disposition", "attachment; filename=\""+quoteEscaper.Replace(name)+"\"")
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return m.client.PresignedGetObject(m.ctx, m.bucket, m.buildMinioPath(path), 5*time.Minute, reqParams)
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u, err := m.client.PresignedGetObject(m.ctx, m.bucket, m.buildMinioPath(path), 5*time.Minute, reqParams)
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return u, convertMinioErr(err)
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}
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// IterateObjects iterates across the objects in the miniostorage
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@ -193,13 +215,13 @@ func (m *MinioStorage) IterateObjects(fn func(path string, obj Object) error) er
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}) {
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object, err := m.client.GetObject(lobjectCtx, m.bucket, mObjInfo.Key, opts)
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if err != nil {
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return err
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return convertMinioErr(err)
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}
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if err := func(object *minio.Object, fn func(path string, obj Object) error) error {
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defer object.Close()
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return fn(strings.TrimPrefix(m.basePath, mObjInfo.Key), &minioObject{object})
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}(object, fn); err != nil {
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return err
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return convertMinioErr(err)
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}
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}
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return nil
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@ -12,6 +12,7 @@ import (
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"net/url"
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"os"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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)
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@ -141,21 +142,25 @@ func NewStorage(typStr string, cfg interface{}) (ObjectStorage, error) {
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}
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func initAvatars() (err error) {
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log.Info("Initialising Avatar storage with type: %s", setting.Avatar.Storage.Type)
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Avatars, err = NewStorage(setting.Avatar.Storage.Type, setting.Avatar.Storage)
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return
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}
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func initAttachments() (err error) {
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log.Info("Initialising Attachment storage with type: %s", setting.Attachment.Storage.Type)
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Attachments, err = NewStorage(setting.Attachment.Storage.Type, setting.Attachment.Storage)
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return
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}
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func initLFS() (err error) {
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log.Info("Initialising LFS storage with type: %s", setting.LFS.Storage.Type)
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LFS, err = NewStorage(setting.LFS.Storage.Type, setting.LFS.Storage)
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return
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}
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func initRepoAvatars() (err error) {
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log.Info("Initialising Repository Avatar storage with type: %s", setting.RepoAvatar.Storage.Type)
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RepoAvatars, err = NewStorage(setting.RepoAvatar.Storage.Type, setting.RepoAvatar.Storage)
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return
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}
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@ -7,8 +7,10 @@ package routes
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import (
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"bytes"
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"encoding/gob"
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"fmt"
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"io"
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"net/http"
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"os"
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"path"
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"strings"
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"text/template"
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@ -125,7 +127,13 @@ func storageHandler(storageSetting setting.Storage, prefix string, objStore stor
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rPath := strings.TrimPrefix(req.RequestURI, "/"+prefix)
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u, err := objStore.URL(rPath, path.Base(rPath))
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if err != nil {
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ctx.Error(500, err.Error())
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if err == os.ErrNotExist {
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log.Warn("Unable to find %s %s", prefix, rPath)
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ctx.Error(404, "file not found")
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return
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}
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log.Error("Error whilst getting URL for %s %s. Error: %v", prefix, rPath, err)
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ctx.Error(500, fmt.Sprintf("Error whilst getting URL for %s %s", prefix, rPath))
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return
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}
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http.Redirect(
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@ -152,14 +160,21 @@ func storageHandler(storageSetting setting.Storage, prefix string, objStore stor
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//If we have matched and access to release or issue
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fr, err := objStore.Open(rPath)
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if err != nil {
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ctx.Error(500, err.Error())
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if err == os.ErrNotExist {
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log.Warn("Unable to find %s %s", prefix, rPath)
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ctx.Error(404, "file not found")
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return
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}
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log.Error("Error whilst opening %s %s. Error: %v", prefix, rPath, err)
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ctx.Error(500, fmt.Sprintf("Error whilst opening %s %s", prefix, rPath))
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return
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}
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defer fr.Close()
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_, err = io.Copy(ctx.Resp, fr)
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if err != nil {
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ctx.Error(500, err.Error())
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log.Error("Error whilst rendering %s %s. Error: %v", prefix, rPath, err)
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ctx.Error(500, fmt.Sprintf("Error whilst rendering %s %s", prefix, rPath))
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return
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}
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}
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@ -208,10 +223,11 @@ func NewMacaron() *macaron.Macaron {
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},
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))
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m.Use(templates.HTMLRenderer())
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m.Use(storageHandler(setting.Avatar.Storage, "avatars", storage.Avatars))
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m.Use(storageHandler(setting.RepoAvatar.Storage, "repo-avatars", storage.RepoAvatars))
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m.Use(templates.HTMLRenderer())
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mailer.InitMailRender(templates.Mailer())
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localeNames, err := options.Dir("locale")
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