-
Notifications
You must be signed in to change notification settings - Fork 3
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #216 from foomo/gzip-middleware
http gzip middleware/roundtripware
- Loading branch information
Showing
15 changed files
with
692 additions
and
39 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| package middleware | ||
|
|
||
| import ( | ||
| "io" | ||
| "net/http" | ||
| "sync" | ||
|
|
||
| stdhttp "github.com/foomo/gostandards/http" | ||
| httputils "github.com/foomo/keel/utils/net/http" | ||
| "github.com/klauspost/compress/gzhttp" | ||
| "github.com/klauspost/compress/gzip" | ||
| "github.com/pkg/errors" | ||
| "go.uber.org/zap" | ||
| ) | ||
|
|
||
| type ( | ||
| GZipOptions struct { | ||
| CompressionLevel int | ||
| MinSize int | ||
| } | ||
| GZipOption func(*GZipOptions) | ||
| ) | ||
|
|
||
| var DefaultGZipOptions = GZipOptions{ | ||
| CompressionLevel: gzip.DefaultCompression, | ||
| MinSize: 1024, | ||
| } | ||
|
|
||
| // GZipWithLevel allows setting a specific compression level for gzip (default: gzip.DefaultCompression). | ||
| func GZipWithLevel(v int) GZipOption { | ||
| return func(o *GZipOptions) { | ||
| o.CompressionLevel = v | ||
| } | ||
| } | ||
|
|
||
| // GZipWithMinSize allows setting a minimum response body length to apply gzip compression (default: 1400 bytes). | ||
| func GZipWithMinSize(v int) GZipOption { | ||
| return func(o *GZipOptions) { | ||
| o.MinSize = v | ||
| } | ||
| } | ||
|
|
||
| // GZip middleware | ||
| func GZip(opts ...GZipOption) Middleware { | ||
| options := DefaultGZipOptions | ||
| for _, opt := range opts { | ||
| if opt != nil { | ||
| opt(&options) | ||
| } | ||
| } | ||
| return GZipWithOptions(options) | ||
| } | ||
|
|
||
| // GZipWithOptions middleware | ||
| func GZipWithOptions(opts GZipOptions) Middleware { | ||
| return func(l *zap.Logger, name string, next http.Handler) http.Handler { | ||
| pool := sync.Pool{ | ||
| New: func() interface{} { | ||
| return new(gzip.Reader) | ||
| }, | ||
| } | ||
| wrapper, err := gzhttp.NewWrapper( | ||
| gzhttp.CompressionLevel(opts.CompressionLevel), | ||
| gzhttp.MinSize(opts.MinSize), | ||
| ) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| return wrapper(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| if r.Header.Get(stdhttp.HeaderContentEncoding.String()) != stdhttp.EncodingGzip.String() { | ||
| next.ServeHTTP(w, r) | ||
| return | ||
| } | ||
|
|
||
| gr, ok := pool.Get().(*gzip.Reader) | ||
| if !ok { | ||
| httputils.InternalServerError(l, w, r, errors.New("failed to retrieve gzip pool")) | ||
| return | ||
| } | ||
| defer pool.Put(gr) | ||
|
|
||
| b := r.Body | ||
| defer b.Close() | ||
|
|
||
| if err := gr.Reset(b); errors.Is(err, io.EOF) { | ||
| next.ServeHTTP(w, r) | ||
| return | ||
| } else if err != nil { | ||
| httputils.BadRequestServerError(l, w, r, errors.New("failed to reset gzip")) | ||
| return | ||
| } | ||
|
|
||
| defer gr.Close() | ||
|
|
||
| r.Header.Del(stdhttp.HeaderContentEncoding.String()) | ||
|
|
||
| r.Body = gr | ||
|
|
||
| next.ServeHTTP(w, r) | ||
| })) | ||
| } | ||
| } |
Oops, something went wrong.