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-rw-r--r--pkg/api/handlers/compat/containers_attach.go36
-rw-r--r--pkg/api/handlers/compat/resize.go68
-rw-r--r--pkg/api/handlers/utils/errors.go8
-rw-r--r--pkg/api/server/register_containers.go6
-rw-r--r--pkg/api/server/register_exec.go4
-rw-r--r--pkg/bindings/containers/containers.go101
6 files changed, 177 insertions, 46 deletions
diff --git a/pkg/api/handlers/compat/containers_attach.go b/pkg/api/handlers/compat/containers_attach.go
index 3c9a6fd69..5fc3117b9 100644
--- a/pkg/api/handlers/compat/containers_attach.go
+++ b/pkg/api/handlers/compat/containers_attach.go
@@ -10,7 +10,6 @@ import (
"github.com/gorilla/schema"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
- "k8s.io/client-go/tools/remotecommand"
)
// AttachHeader is the literal header sent for upgraded/hijacked connections for
@@ -127,38 +126,3 @@ func AttachContainer(w http.ResponseWriter, r *http.Request) {
logrus.Debugf("Attach for container %s completed successfully", ctr.ID())
}
-
-func ResizeContainer(w http.ResponseWriter, r *http.Request) {
- runtime := r.Context().Value("runtime").(*libpod.Runtime)
- decoder := r.Context().Value("decoder").(*schema.Decoder)
-
- query := struct {
- Height uint16 `schema:"h"`
- Width uint16 `schema:"w"`
- }{}
- if err := decoder.Decode(&query, r.URL.Query()); err != nil {
- // This is not a 400, despite the fact that is should be, for
- // compatibility reasons.
- utils.InternalServerError(w, errors.Wrapf(err, "error parsing query options"))
- return
- }
-
- name := utils.GetName(r)
- ctr, err := runtime.LookupContainer(name)
- if err != nil {
- utils.ContainerNotFound(w, name, err)
- return
- }
-
- newSize := remotecommand.TerminalSize{
- Width: query.Width,
- Height: query.Height,
- }
- if err := ctr.AttachResize(newSize); err != nil {
- utils.InternalServerError(w, err)
- return
- }
- // This is not a 204, even though we write nothing, for compatibility
- // reasons.
- utils.WriteResponse(w, http.StatusOK, "")
-}
diff --git a/pkg/api/handlers/compat/resize.go b/pkg/api/handlers/compat/resize.go
new file mode 100644
index 000000000..3ead733bc
--- /dev/null
+++ b/pkg/api/handlers/compat/resize.go
@@ -0,0 +1,68 @@
+package compat
+
+import (
+ "net/http"
+ "strings"
+
+ "github.com/containers/libpod/libpod"
+ "github.com/containers/libpod/pkg/api/handlers/utils"
+ "github.com/gorilla/schema"
+ "github.com/pkg/errors"
+ "k8s.io/client-go/tools/remotecommand"
+)
+
+func ResizeTTY(w http.ResponseWriter, r *http.Request) {
+ runtime := r.Context().Value("runtime").(*libpod.Runtime)
+ decoder := r.Context().Value("decoder").(*schema.Decoder)
+
+ // /containers/{id}/resize
+ query := struct {
+ height uint16 `schema:"h"`
+ width uint16 `schema:"w"`
+ }{
+ // override any golang type defaults
+ }
+
+ if err := decoder.Decode(&query, r.URL.Query()); err != nil {
+ utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest,
+ errors.Wrapf(err, "Failed to parse parameters for %s", r.URL.String()))
+ return
+ }
+
+ sz := remotecommand.TerminalSize{
+ Width: query.width,
+ Height: query.height,
+ }
+
+ var status int
+ name := utils.GetName(r)
+ switch {
+ case strings.Contains(r.URL.Path, "/containers/"):
+ ctnr, err := runtime.LookupContainer(name)
+ if err != nil {
+ utils.ContainerNotFound(w, name, err)
+ return
+ }
+ if err := ctnr.AttachResize(sz); err != nil {
+ utils.InternalServerError(w, errors.Wrapf(err, "cannot resize container"))
+ return
+ }
+ // This is not a 204, even though we write nothing, for compatibility
+ // reasons.
+ status = http.StatusOK
+ case strings.Contains(r.URL.Path, "/exec/"):
+ ctnr, err := runtime.GetExecSessionContainer(name)
+ if err != nil {
+ utils.SessionNotFound(w, name, err)
+ return
+ }
+ if err := ctnr.ExecResize(name, sz); err != nil {
+ utils.InternalServerError(w, errors.Wrapf(err, "cannot resize session"))
+ return
+ }
+ // This is not a 204, even though we write nothing, for compatibility
+ // reasons.
+ status = http.StatusCreated
+ }
+ utils.WriteResponse(w, status, "")
+}
diff --git a/pkg/api/handlers/utils/errors.go b/pkg/api/handlers/utils/errors.go
index 3253a9be3..c17720694 100644
--- a/pkg/api/handlers/utils/errors.go
+++ b/pkg/api/handlers/utils/errors.go
@@ -63,6 +63,14 @@ func PodNotFound(w http.ResponseWriter, name string, err error) {
Error(w, msg, http.StatusNotFound, err)
}
+func SessionNotFound(w http.ResponseWriter, name string, err error) {
+ if errors.Cause(err) != define.ErrNoSuchExecSession {
+ InternalServerError(w, err)
+ }
+ msg := fmt.Sprintf("No such exec session: %s", name)
+ Error(w, msg, http.StatusNotFound, err)
+}
+
func ContainerNotRunning(w http.ResponseWriter, containerID string, err error) {
msg := fmt.Sprintf("Container %s is not running", containerID)
Error(w, msg, http.StatusConflict, err)
diff --git a/pkg/api/server/register_containers.go b/pkg/api/server/register_containers.go
index 378d1e06c..0d78e4cdb 100644
--- a/pkg/api/server/register_containers.go
+++ b/pkg/api/server/register_containers.go
@@ -584,9 +584,9 @@ func (s *APIServer) registerContainersHandlers(r *mux.Router) error {
// $ref: "#/responses/NoSuchContainer"
// 500:
// $ref: "#/responses/InternalError"
- r.HandleFunc(VersionedPath("/containers/{name}/resize"), s.APIHandler(compat.ResizeContainer)).Methods(http.MethodPost)
+ r.HandleFunc(VersionedPath("/containers/{name}/resize"), s.APIHandler(compat.ResizeTTY)).Methods(http.MethodPost)
// Added non version path to URI to support docker non versioned paths
- r.HandleFunc("/containers/{name}/resize", s.APIHandler(compat.ResizeContainer)).Methods(http.MethodPost)
+ r.HandleFunc("/containers/{name}/resize", s.APIHandler(compat.ResizeTTY)).Methods(http.MethodPost)
// swagger:operation GET /containers/{name}/export compat exportContainer
// ---
// tags:
@@ -1259,7 +1259,7 @@ func (s *APIServer) registerContainersHandlers(r *mux.Router) error {
// $ref: "#/responses/NoSuchContainer"
// 500:
// $ref: "#/responses/InternalError"
- r.HandleFunc(VersionedPath("/libpod/containers/{name}/resize"), s.APIHandler(compat.ResizeContainer)).Methods(http.MethodPost)
+ r.HandleFunc(VersionedPath("/libpod/containers/{name}/resize"), s.APIHandler(compat.ResizeTTY)).Methods(http.MethodPost)
// swagger:operation GET /libpod/containers/{name}/export libpod libpodExportContainer
// ---
// tags:
diff --git a/pkg/api/server/register_exec.go b/pkg/api/server/register_exec.go
index 19b7e2fcd..1533edba9 100644
--- a/pkg/api/server/register_exec.go
+++ b/pkg/api/server/register_exec.go
@@ -145,9 +145,9 @@ func (s *APIServer) registerExecHandlers(r *mux.Router) error {
// $ref: "#/responses/NoSuchExecInstance"
// 500:
// $ref: "#/responses/InternalError"
- r.Handle(VersionedPath("/exec/{id}/resize"), s.APIHandler(compat.UnsupportedHandler)).Methods(http.MethodPost)
+ r.Handle(VersionedPath("/exec/{id}/resize"), s.APIHandler(compat.ResizeTTY)).Methods(http.MethodPost)
// Added non version path to URI to support docker non versioned paths
- r.Handle("/exec/{id}/resize", s.APIHandler(compat.UnsupportedHandler)).Methods(http.MethodPost)
+ r.Handle("/exec/{id}/resize", s.APIHandler(compat.ResizeTTY)).Methods(http.MethodPost)
// swagger:operation GET /exec/{id}/json compat inspectExec
// ---
// tags:
diff --git a/pkg/bindings/containers/containers.go b/pkg/bindings/containers/containers.go
index b77ef208d..f0984b8e3 100644
--- a/pkg/bindings/containers/containers.go
+++ b/pkg/bindings/containers/containers.go
@@ -7,8 +7,11 @@ import (
"io"
"net/http"
"net/url"
+ "os"
+ "os/signal"
"strconv"
"strings"
+ "syscall"
"github.com/containers/libpod/libpod/define"
"github.com/containers/libpod/pkg/api/handlers"
@@ -16,6 +19,7 @@ import (
"github.com/containers/libpod/pkg/domain/entities"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
+ "golang.org/x/crypto/ssh/terminal"
)
var (
@@ -374,11 +378,58 @@ func Attach(ctx context.Context, nameOrId string, detachKeys *string, logs, stre
params.Add("stderr", "true")
}
+ // Unless all requirements are met, don't use "stdin" is a terminal
+ file, ok := stdin.(*os.File)
+ needTTY := ok && terminal.IsTerminal(int(file.Fd())) && ctnr.Config.Tty
+ if needTTY {
+ state, err := terminal.MakeRaw(int(file.Fd()))
+ if err != nil {
+ return err
+ }
+
+ logrus.SetFormatter(&rawFormatter{})
+
+ defer func() {
+ if err := terminal.Restore(int(file.Fd()), state); err != nil {
+ logrus.Errorf("unable to restore terminal: %q", err)
+ }
+ logrus.SetFormatter(&logrus.TextFormatter{})
+ }()
+
+ winChange := make(chan os.Signal, 1)
+ signal.Notify(winChange, syscall.SIGWINCH)
+ winCtx, winCancel := context.WithCancel(ctx)
+ defer winCancel()
+
+ go func() {
+ // Prime the pump, we need one reset to ensure everything is ready
+ winChange <- syscall.SIGWINCH
+ for {
+ select {
+ case <-winCtx.Done():
+ return
+ case <-winChange:
+ h, w, err := terminal.GetSize(int(file.Fd()))
+ if err != nil {
+ logrus.Warnf("failed to obtain TTY size: " + err.Error())
+ }
+
+ if err := ResizeContainerTTY(ctx, nameOrId, &h, &w); err != nil {
+ logrus.Warnf("failed to resize TTY: " + err.Error())
+ }
+ }
+ }
+ }()
+ }
+
response, err := conn.DoRequest(nil, http.MethodPost, "/containers/%s/attach", params, nameOrId)
if err != nil {
return err
}
defer response.Body.Close()
+ if !(response.IsSuccess() || response.IsInformational()) {
+ return response.Process(nil)
+ }
if stdin != nil {
go func() {
@@ -401,11 +452,8 @@ func Attach(ctx context.Context, nameOrId string, detachKeys *string, logs, stre
// Read multiplexed channels and write to appropriate stream
fd, l, err := DemuxHeader(response.Body, buffer)
if err != nil {
- switch {
- case errors.Is(err, io.EOF):
+ if errors.Is(err, io.EOF) {
return nil
- case errors.Is(err, io.ErrUnexpectedEOF):
- continue
}
return err
}
@@ -437,7 +485,7 @@ func Attach(ctx context.Context, nameOrId string, detachKeys *string, logs, stre
}
}
}
- return err
+ return nil
}
// DemuxHeader reads header for stream from server multiplexed stdin/stdout/stderr/2nd error channel
@@ -477,3 +525,46 @@ func DemuxFrame(r io.Reader, buffer []byte, length int) (frame []byte, err error
return buffer[0:length], nil
}
+
+// ResizeContainerTTY sets container's TTY height and width in characters
+func ResizeContainerTTY(ctx context.Context, nameOrId string, height *int, width *int) error {
+ return resizeTTY(ctx, bindings.JoinURL("containers", nameOrId, "resize"), height, width)
+}
+
+// ResizeExecTTY sets session's TTY height and width in characters
+func ResizeExecTTY(ctx context.Context, nameOrId string, height *int, width *int) error {
+ return resizeTTY(ctx, bindings.JoinURL("exec", nameOrId, "resize"), height, width)
+}
+
+// resizeTTY set size of TTY of container
+func resizeTTY(ctx context.Context, endpoint string, height *int, width *int) error {
+ conn, err := bindings.GetClient(ctx)
+ if err != nil {
+ return err
+ }
+
+ params := url.Values{}
+ if height != nil {
+ params.Set("h", strconv.Itoa(*height))
+ }
+ if width != nil {
+ params.Set("w", strconv.Itoa(*width))
+ }
+ rsp, err := conn.DoRequest(nil, http.MethodPost, endpoint, params)
+ if err != nil {
+ return err
+ }
+ return rsp.Process(nil)
+}
+
+type rawFormatter struct {
+ logrus.TextFormatter
+}
+
+func (f *rawFormatter) Format(entry *logrus.Entry) ([]byte, error) {
+ buffer, err := f.TextFormatter.Format(entry)
+ if err != nil {
+ return buffer, err
+ }
+ return append(buffer, '\r'), nil
+}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-19 00:53:20 +0000