Support more content-types when specifying the Graffiti string

beacon_chain/rpc/rest_constants.nim

@@ -73,7 +73,7 @@ const
     "Missing `randao_reveal` value"
   InvalidRandaoRevealValue* =
     "Invalid randao reveal value"
-  InvalidGraffitiBytesValye* =
+  InvalidGraffitiBytesValue* =
     "Invalid graffiti bytes value"
   InvalidEpochValueError* =
     "Invalid epoch value"

beacon_chain/rpc/rest_nimbus_api.nim

@@ -165,12 +165,33 @@ proc installNimbusApiHandlers*(router: var RestRouter, node: BeaconNode) =
     return RestApiResponse.jsonResponse((peers: res))
 
   router.api(MethodPost, "/nimbus/v1/graffiti") do (
-    value: Option[GraffitiBytes]) -> RestApiResponse:
-    if value.isSome() and value.get().isOk():
-      node.graffitiBytes = value.get().get()
+    contentBody: Option[ContentBody]) -> RestApiResponse:
+    if contentBody.isNone:
+      return RestApiResponse.jsonError(Http400, EmptyRequestBodyError)
+
+    template setGraffitiAux(node: BeaconNode, graffitiStr: string): RestApiResponse =
+      node.graffitiBytes = try:
+        GraffitiBytes.init(graffitiStr)
+      except CatchableError as err:
+        return RestApiResponse.jsonError(Http400, InvalidGraffitiBytesValue,
+                                         err.msg)
+      RestApiResponse.jsonResponse((result: true))
+
+    case contentBody.get.contentType
+    of "application/json":
+      let graffitiBytes = decodeBody(GraffitiBytes, contentBody.get)
+      if graffitiBytes.isErr:
+        return RestApiResponse.jsonError(Http400, InvalidGraffitiBytesValue,
+                                         $graffitiBytes.error)
+      node.graffitiBytes = graffitiBytes.get
       return RestApiResponse.jsonResponse((result: true))
+    of "text/plain":
+      return node.setGraffitiAux contentBody.get.strData
+    of "application/x-www-form-urlencoded":
+      return node.setGraffitiAux decodeUrl(contentBody.get.strData)
     else:
-      return RestApiResponse.jsonError(Http400, InvalidGraffitiBytesValye)
+      return RestApiResponse.jsonError(Http400, "Unsupported content type: " &
+                                                $contentBody.get.contentType)
 
   router.api(MethodGet, "/nimbus/v1/graffiti") do (
     ) -> RestApiResponse:

beacon_chain/rpc/rest_utils.nim

@@ -1,5 +1,5 @@
 import std/[options, macros],
-       presto,
+       stew/byteutils, presto,
        nimcrypto/utils as ncrutils,
        ../spec/[forks],
        ../spec/eth2_apis/[rest_types, eth2_rest_serialization],
@@ -191,6 +191,10 @@ template withStateForBlockSlot*(nodeParam: BeaconNode,
         withStateVars(stateToAdvance[]):
           body
 
+template strData*(body: ContentBody): string =
+  bind fromBytes
+  string.fromBytes(body.data)
+
 proc toValidatorIndex*(value: RestValidatorIndex): Result[ValidatorIndex,
                                                           ValidatorIndexError] =
   when sizeof(ValidatorIndex) == 4:

beacon_chain/rpc/rest_validator_api.nim

@@ -313,7 +313,7 @@ proc installValidatorApiHandlers*(router: var RestRouter, node: BeaconNode) =
             let res = graffiti.get()
             if res.isErr():
               return RestApiResponse.jsonError(Http400,
-                                               InvalidGraffitiBytesValye,
+                                               InvalidGraffitiBytesValue,
                                                $res.error())
             res.get()
         let qhead =
@@ -371,7 +371,7 @@ proc installValidatorApiHandlers*(router: var RestRouter, node: BeaconNode) =
             let res = graffiti.get()
             if res.isErr():
               return RestApiResponse.jsonError(Http400,
-                                               InvalidGraffitiBytesValye,
+                                               InvalidGraffitiBytesValue,
                                                $res.error())
             res.get()
         let qhead =

beacon_chain/version.nim

@@ -17,7 +17,7 @@ const
   versionMinor* = 5
   versionBuild* = 5
 
-  versionBlob* = "stateofus" # Single word - ends up in the default graffitti
+  versionBlob* = "stateofus" # Single word - ends up in the default graffiti
 
   gitRevision* = strip(staticExec("git rev-parse --short HEAD"))[0..5]
 

scripts/package_image/usr/lib/systemd/system/nimbus_beacon_node.service

@@ -4,7 +4,7 @@
 # Environment="WEB3_URL=wss://provider/"
 #
 # To completely override the start command (to add custom parameters such as
-# graffitti), override the `ExecStart` value instead:
+# graffiti), override the `ExecStart` value instead:
 #
 # [Service]
 # ExecStart=/usr/bin/nimbus_beacon_node --network=${NETWORK} \