From 9883a190109623b64e6d311dc2b462a6eae68003 Mon Sep 17 00:00:00 2001 From: Paul Buetow Date: Sun, 22 Aug 2021 10:07:00 +0300 Subject: introduces the protocol package --- internal/server/handlers/controlhandler.go | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'internal/server/handlers/controlhandler.go') diff --git a/internal/server/handlers/controlhandler.go b/internal/server/handlers/controlhandler.go index 1e17c78..a217b40 100644 --- a/internal/server/handlers/controlhandler.go +++ b/internal/server/handlers/controlhandler.go @@ -8,6 +8,7 @@ import ( "github.com/mimecast/dtail/internal" "github.com/mimecast/dtail/internal/io/logger" + "github.com/mimecast/dtail/internal/protocol" user "github.com/mimecast/dtail/internal/user/server" ) @@ -56,7 +57,7 @@ func (h *ControlHandler) Read(p []byte) (n int, err error) { for { select { case message := <-h.serverMessages: - wholePayload := []byte(fmt.Sprintf("SERVER|%s|%s\n", h.hostname, message)) + wholePayload := []byte(fmt.Sprintf("SERVER|%s|%s%b", h.hostname, message, protocol.MessageDelimiter)) n = copy(p, wholePayload) return case <-h.done.Done(): -- cgit v1.2.3 From 16dc57e1e1c28e9d762424e596223a980770e059 Mon Sep 17 00:00:00 2001 From: Paul Buetow Date: Wed, 8 Sep 2021 19:10:50 +0300 Subject: mapreduce tables are in colors now too --- internal/server/handlers/controlhandler.go | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'internal/server/handlers/controlhandler.go') diff --git a/internal/server/handlers/controlhandler.go b/internal/server/handlers/controlhandler.go index a217b40..1e17c78 100644 --- a/internal/server/handlers/controlhandler.go +++ b/internal/server/handlers/controlhandler.go @@ -8,7 +8,6 @@ import ( "github.com/mimecast/dtail/internal" "github.com/mimecast/dtail/internal/io/logger" - "github.com/mimecast/dtail/internal/protocol" user "github.com/mimecast/dtail/internal/user/server" ) @@ -57,7 +56,7 @@ func (h *ControlHandler) Read(p []byte) (n int, err error) { for { select { case message := <-h.serverMessages: - wholePayload := []byte(fmt.Sprintf("SERVER|%s|%s%b", h.hostname, message, protocol.MessageDelimiter)) + wholePayload := []byte(fmt.Sprintf("SERVER|%s|%s\n", h.hostname, message)) n = copy(p, wholePayload) return case <-h.done.Done(): -- cgit v1.2.3 From fe3e68afd99d8ea246be52893730f987e138ec24 Mon Sep 17 00:00:00 2001 From: Paul Buetow Date: Sun, 19 Sep 2021 13:22:59 +0300 Subject: move args to config package logger package rewrite as dlog --- internal/server/handlers/controlhandler.go | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'internal/server/handlers/controlhandler.go') diff --git a/internal/server/handlers/controlhandler.go b/internal/server/handlers/controlhandler.go index 1e17c78..ae70675 100644 --- a/internal/server/handlers/controlhandler.go +++ b/internal/server/handlers/controlhandler.go @@ -7,7 +7,7 @@ import ( "strings" "github.com/mimecast/dtail/internal" - "github.com/mimecast/dtail/internal/io/logger" + "github.com/mimecast/dtail/internal/io/dlog" user "github.com/mimecast/dtail/internal/user/server" ) @@ -22,7 +22,7 @@ type ControlHandler struct { // NewControlHandler returns a new control handler. func NewControlHandler(user *user.User) *ControlHandler { - logger.Debug(user, "Creating control handler") + dlog.Server.Debug(user, "Creating control handler") h := ControlHandler{ done: internal.NewDone(), @@ -32,7 +32,7 @@ func NewControlHandler(user *user.User) *ControlHandler { fqdn, err := os.Hostname() if err != nil { - logger.FatalExit(err) + dlog.Server.FatalPanic(err) } s := strings.Split(fqdn, ".") @@ -84,15 +84,15 @@ func (h *ControlHandler) Write(p []byte) (n int, err error) { } func (h *ControlHandler) handleCommand(command string) { - logger.Info(h.user, command) + dlog.Server.Info(h.user, command) s := strings.Split(command, " ") - logger.Debug(h.user, "Receiving command", command, s) + dlog.Server.Debug(h.user, "Receiving command", command, s) switch s[0] { case "health": h.serverMessages <- "OK: DTail SSH Server seems fine" h.serverMessages <- "done;" default: - h.serverMessages <- logger.Error(h.user, "Received unknown control command", command, s) + h.serverMessages <- dlog.Server.Error(h.user, "Received unknown control command", command, s) } } -- cgit v1.2.3 From fab5dc3e70434ea0abc7a0976487a1973b662331 Mon Sep 17 00:00:00 2001 From: Paul Buetow Date: Wed, 6 Oct 2021 09:50:41 +0300 Subject: enable faster shutdown - useful for dgrep/dmap and dcat commands --- internal/server/handlers/controlhandler.go | 98 ------------------------------ 1 file changed, 98 deletions(-) delete mode 100644 internal/server/handlers/controlhandler.go (limited to 'internal/server/handlers/controlhandler.go') diff --git a/internal/server/handlers/controlhandler.go b/internal/server/handlers/controlhandler.go deleted file mode 100644 index ae70675..0000000 --- a/internal/server/handlers/controlhandler.go +++ /dev/null @@ -1,98 +0,0 @@ -package handlers - -import ( - "fmt" - "io" - "os" - "strings" - - "github.com/mimecast/dtail/internal" - "github.com/mimecast/dtail/internal/io/dlog" - user "github.com/mimecast/dtail/internal/user/server" -) - -// ControlHandler is used for control functions and health monitoring. -type ControlHandler struct { - done *internal.Done - hostname string - payload []byte - serverMessages chan string - user *user.User -} - -// NewControlHandler returns a new control handler. -func NewControlHandler(user *user.User) *ControlHandler { - dlog.Server.Debug(user, "Creating control handler") - - h := ControlHandler{ - done: internal.NewDone(), - serverMessages: make(chan string, 10), - user: user, - } - - fqdn, err := os.Hostname() - if err != nil { - dlog.Server.FatalPanic(err) - } - - s := strings.Split(fqdn, ".") - h.hostname = s[0] - - return &h -} - -// Shutdown the handler. -func (h *ControlHandler) Shutdown() { - h.done.Shutdown() -} - -// Done channel of the handler. -func (h *ControlHandler) Done() <-chan struct{} { - return h.done.Done() -} - -// Read is to send data to the client via the Reader interface. -func (h *ControlHandler) Read(p []byte) (n int, err error) { - for { - select { - case message := <-h.serverMessages: - wholePayload := []byte(fmt.Sprintf("SERVER|%s|%s\n", h.hostname, message)) - n = copy(p, wholePayload) - return - case <-h.done.Done(): - return 0, io.EOF - } - } -} - -// Write is to read data to the client via the Writer interface. -func (h *ControlHandler) Write(p []byte) (n int, err error) { - for _, c := range p { - switch c { - case ';': - wholePayload := strings.TrimSpace(string(h.payload)) - h.handleCommand(wholePayload) - h.payload = nil - - default: - h.payload = append(h.payload, c) - } - } - - n = len(p) - return -} - -func (h *ControlHandler) handleCommand(command string) { - dlog.Server.Info(h.user, command) - s := strings.Split(command, " ") - dlog.Server.Debug(h.user, "Receiving command", command, s) - - switch s[0] { - case "health": - h.serverMessages <- "OK: DTail SSH Server seems fine" - h.serverMessages <- "done;" - default: - h.serverMessages <- dlog.Server.Error(h.user, "Received unknown control command", command, s) - } -} -- cgit v1.2.3