From 3777f5c68448992a6ed8230f40713d3b31da0413 Mon Sep 17 00:00:00 2001 From: tobi <31960611+tsmethurst@users.noreply.github.com> Date: Mon, 19 Sep 2022 13:43:22 +0200 Subject: [PATCH] [bugfix] Server and closer bugfixes (#839) * defer streaming from storage more forcefully * shut down Server more gracefully * use command context as server BaseContext --- internal/api/client/fileserver/servefile.go | 20 +++++++------- internal/media/processingemoji.go | 12 ++++----- internal/media/processingmedia.go | 14 +++++----- internal/router/router.go | 30 ++++++++++++++++----- 4 files changed, 47 insertions(+), 29 deletions(-) diff --git a/internal/api/client/fileserver/servefile.go b/internal/api/client/fileserver/servefile.go index 0858af3ce..236a2d8ac 100644 --- a/internal/api/client/fileserver/servefile.go +++ b/internal/api/client/fileserver/servefile.go @@ -85,20 +85,22 @@ func (m *FileServer) ServeFile(c *gin.Context) { return } + defer func() { + // if the content is a ReadCloser (ie., it's streamed from storage), close it when we're done + if content.Content != nil { + if closer, ok := content.Content.(io.ReadCloser); ok { + if err := closer.Close(); err != nil { + log.Errorf("ServeFile: error closing readcloser: %s", err) + } + } + } + }() + if content.URL != nil { c.Redirect(http.StatusFound, content.URL.String()) return } - defer func() { - // if the content is a ReadCloser, close it when we're done - if closer, ok := content.Content.(io.ReadCloser); ok { - if err := closer.Close(); err != nil { - log.Errorf("ServeFile: error closing readcloser: %s", err) - } - } - }() - // TODO: if the requester only accepts text/html we should try to serve them *something*. // This is mostly needed because when sharing a link to a gts-hosted file on something like mastodon, the masto servers will // attempt to look up the content to provide a preview of the link, and they ask for text/html. diff --git a/internal/media/processingemoji.go b/internal/media/processingemoji.go index 121f54ddc..e3ed5ce0a 100644 --- a/internal/media/processingemoji.go +++ b/internal/media/processingemoji.go @@ -121,6 +121,12 @@ func (p *ProcessingEmoji) loadStatic(ctx context.Context) error { return p.err } + defer func() { + if err := stored.Close(); err != nil { + log.Errorf("loadStatic: error closing stored full size: %s", err) + } + }() + // we haven't processed a static version of this emoji yet so do it now static, err := deriveStaticEmoji(stored, p.emoji.ImageContentType) if err != nil { @@ -129,12 +135,6 @@ func (p *ProcessingEmoji) loadStatic(ctx context.Context) error { return p.err } - if err := stored.Close(); err != nil { - p.err = fmt.Errorf("loadStatic: error closing stored full size: %s", err) - atomic.StoreInt32(&p.staticState, int32(errored)) - return p.err - } - // put the static in storage if err := p.storage.Put(ctx, p.emoji.ImageStaticPath, static.small); err != nil { p.err = fmt.Errorf("loadStatic: error storing static: %s", err) diff --git a/internal/media/processingmedia.go b/internal/media/processingmedia.go index 26fbc0cea..3f3a68f3f 100644 --- a/internal/media/processingmedia.go +++ b/internal/media/processingmedia.go @@ -145,9 +145,7 @@ func (p *ProcessingMedia) loadThumb(ctx context.Context) error { return p.err } - // whatever happens, close the stream when we're done defer func() { - log.Tracef("loadThumb: closing stored stream %s", p.attachment.URL) if err := stored.Close(); err != nil { log.Errorf("loadThumb: error closing stored full size: %s", err) } @@ -210,6 +208,12 @@ func (p *ProcessingMedia) loadFullSize(ctx context.Context) error { return p.err } + defer func() { + if err := stored.Close(); err != nil { + log.Errorf("loadFullSize: error closing stored full size: %s", err) + } + }() + // decode the image ct := p.attachment.File.ContentType switch ct { @@ -227,12 +231,6 @@ func (p *ProcessingMedia) loadFullSize(ctx context.Context) error { return p.err } - if err := stored.Close(); err != nil { - p.err = fmt.Errorf("loadFullSize: error closing stored full size: %s", err) - atomic.StoreInt32(&p.fullSizeState, int32(errored)) - return p.err - } - // set appropriate fields on the attachment based on the image we derived p.attachment.FileMeta.Original = gtsmodel.Original{ Width: decoded.width, diff --git a/internal/router/router.go b/internal/router/router.go index da00b685d..d66e5f9cd 100644 --- a/internal/router/router.go +++ b/internal/router/router.go @@ -21,6 +21,7 @@ package router import ( "context" "fmt" + "net" "net/http" "time" @@ -37,6 +38,7 @@ const ( writeTimeout = 30 * time.Second idleTimeout = 30 * time.Second readHeaderTimeout = 30 * time.Second + shutdownTimeout = 30 * time.Second ) // Router provides the REST interface for gotosocial, using gin. @@ -128,7 +130,16 @@ func (r *router) Start() { // Stop shuts down the router nicely func (r *router) Stop(ctx context.Context) error { - return r.srv.Shutdown(ctx) + log.Infof("shutting down http router with %s grace period", shutdownTimeout) + timeout, cancel := context.WithTimeout(ctx, shutdownTimeout) + defer cancel() + + if err := r.srv.Shutdown(timeout); err != nil { + return fmt.Errorf("error shutting down http router: %s", err) + } + + log.Info("http router closed connections and shut down gracefully") + return nil } // New returns a new Router with the specified configuration. @@ -174,17 +185,24 @@ func New(ctx context.Context, db db.DB) (Router, error) { return nil, err } - // create the http server here, passing the gin engine as handler + // use the passed-in command context as the base context for the server, + // since we'll never want the server to live past the command anyway + baseCtx := func(_ net.Listener) context.Context { + return ctx + } + bindAddress := config.GetBindAddress() port := config.GetPort() - listen := fmt.Sprintf("%s:%d", bindAddress, port) + addr := fmt.Sprintf("%s:%d", bindAddress, port) + s := &http.Server{ - Addr: listen, - Handler: engine, + Addr: addr, + Handler: engine, // use gin engine as handler ReadTimeout: readTimeout, + ReadHeaderTimeout: readHeaderTimeout, WriteTimeout: writeTimeout, IdleTimeout: idleTimeout, - ReadHeaderTimeout: readHeaderTimeout, + BaseContext: baseCtx, } // We need to spawn the underlying server slightly differently depending on whether lets encrypt is enabled or not.