add execclient

1 files changed, 48 insertions, 0 deletions

diff --git a/internal/clients/execclient.go b/internal/clients/execclient.go
new file mode 100644
index 0000000..10bd081
--- /dev/null
+++ b/internal/clients/execclient.go
@@ -0,0 +1,48 @@
+package clients
+
+import (
+	"fmt"
+	"runtime"
+	"strings"
+
+	"github.com/mimecast/dtail/internal/clients/handlers"
+	"github.com/mimecast/dtail/internal/clients/remote"
+	"github.com/mimecast/dtail/internal/omode"
+	"github.com/mimecast/dtail/internal/ssh/client"
+
+	gossh "golang.org/x/crypto/ssh"
+)
+
+// ExecClient is a client for execute various commands on the server.
+type ExecClient struct {
+	baseClient
+}
+
+// NewExecClient returns a new cat client.
+func NewExecClient(args Args) (*ExecClient, error) {
+	args.Regex = "."
+	args.Mode = omode.ExecClient
+
+	c := ExecClient{
+		baseClient: baseClient{
+			Args:       args,
+			stop:       make(chan struct{}),
+			stopped:    make(chan struct{}),
+			throttleCh: make(chan struct{}, args.ConnectionsPerCPU*runtime.NumCPU()),
+			retry:      false,
+		},
+	}
+
+	c.init(c)
+
+	return &c, nil
+}
+
+func (c ExecClient) makeConnection(server string, sshAuthMethods []gossh.AuthMethod, hostKeyCallback *client.HostKeyCallback) *remote.Connection {
+	conn := remote.NewConnection(server, c.UserName, sshAuthMethods, hostKeyCallback)
+	conn.Handler = handlers.NewClientHandler(server, c.PingTimeout)
+	for _, file := range strings.Split(c.Files, ";") {
+		conn.Commands = append(conn.Commands, fmt.Sprintf("%s %s", c.Mode.String(), file))
+	}
+	return conn
+}