2769: Add -never-delete command line flag.

[arvados.git] / services / keep / src / keep / keep.go

diff --git a/services/keep/src/keep/keep.go b/services/keep/src/keep/keep.go
index c34c268c7f475cdcb3e9e575f2a372878ce80b02..9556185fc064f79712e79e1810cf2c8951818b84 100644 (file)
--- a/services/keep/src/keep/keep.go
+++ b/services/keep/src/keep/keep.go
@@ -53,6 +53,10 @@ var permission_ttl time.Duration
 // Initialized by the --data-manager-token-file flag.
 var data_manager_token string
 
+// never_delete can be used to prevent the DELETE handler from
+// actually deleting anything.
+var never_delete = false
+
 // ==========
 // Error types.
 //
@@ -62,16 +66,17 @@ type KeepError struct {
 }
 
 var (
-       BadRequestError  = &KeepError{400, "Bad Request"}
-       CollisionError   = &KeepError{500, "Collision"}
-       RequestHashError = &KeepError{422, "Hash mismatch in request"}
-       PermissionError  = &KeepError{403, "Forbidden"}
-       DiskHashError    = &KeepError{500, "Hash mismatch in stored data"}
-       ExpiredError     = &KeepError{401, "Expired permission signature"}
-       NotFoundError    = &KeepError{404, "Not Found"}
-       GenericError     = &KeepError{500, "Fail"}
-       FullError        = &KeepError{503, "Full"}
-       TooLongError     = &KeepError{504, "Timeout"}
+       BadRequestError     = &KeepError{400, "Bad Request"}
+       CollisionError      = &KeepError{500, "Collision"}
+       RequestHashError    = &KeepError{422, "Hash mismatch in request"}
+       PermissionError     = &KeepError{403, "Forbidden"}
+       DiskHashError       = &KeepError{500, "Hash mismatch in stored data"}
+       ExpiredError        = &KeepError{401, "Expired permission signature"}
+       NotFoundError       = &KeepError{404, "Not Found"}
+       GenericError        = &KeepError{500, "Fail"}
+       FullError           = &KeepError{503, "Full"}
+       TooLongError        = &KeepError{504, "Timeout"}
+       MethodDisabledError = &KeepError{405, "Method disabled"}
 )
 
 func (e *KeepError) Error() string {
@@ -132,6 +137,12 @@ func main() {
                "Interface on which to listen for requests, in the format "+
                        "ipaddr:port. e.g. -listen=10.0.1.24:8000. Use -listen=:port "+
                        "to listen on all network interfaces.")
+       flag.BoolVar(
+               &never_delete,
+               "never-delete",
+               false,
+               "If set, nothing will be deleted. HTTP 405 will be returned "+
+                       "for valid DELETE requests.")
        flag.StringVar(
                &permission_key_file,
                "permission-key-file",