add globalfee params

app/params/globalfee.go

@@ -0,0 +1,55 @@
+package params
+
+import (
+	"strings"
+
+	serverconfig "github.com/cosmos/cosmos-sdk/server/config"
+)
+
+var (
+	// BypassMinFeeMsgTypesKey defines the configuration key for the
+	// BypassMinFeeMsgTypes value.
+	//nolint: gosec
+	BypassMinFeeMsgTypesKey = "bypass-min-fee-msg-types"
+
+	// customMigalooConfigTemplate defines Migaloo's custom application configuration TOML template.
+	customMigalooConfigTemplate = `
+###############################################################################
+###                        Custom Migaloo Configuration                        ###
+###############################################################################
+# bypass-min-fee-msg-types defines custom message types the operator may set that
+# will bypass minimum fee checks during CheckTx.
+# NOTE:
+# bypass-min-fee-msg-types = [] will deactivate the bypass - no messages will be allowed to bypass the minimum fee check
+# bypass-min-fee-msg-types = [<MsgType>...] will allow messages of specified type to bypass the minimum fee check
+# removing bypass-min-fee-msg-types from the config file will apply the default values:
+# ["/ibc.core.channel.v1.MsgRecvPacket", "/ibc.core.channel.v1.MsgAcknowledgement", "/ibc.core.client.v1.MsgUpdateClient"]
+#
+# Example:
+# bypass-min-fee-msg-types = ["/ibc.core.channel.v1.MsgRecvPacket", "/ibc.core.channel.v1.MsgAcknowledgement", "/ibc.core.client.v1.MsgUpdateClient"]
+bypass-min-fee-msg-types = [{{ range .BypassMinFeeMsgTypes }}{{ printf "%q, " . }}{{end}}]
+`
+)
+
+// CustomConfigTemplate defines Migaloo's custom application configuration TOML
+// template. It extends the core SDK template.
+func CustomConfigTemplate() string {
+	config := serverconfig.DefaultConfigTemplate
+	lines := strings.Split(config, "\n")
+	// add the Migaloo config at the second line of the file
+	lines[2] += customMigalooConfigTemplate
+	return strings.Join(lines, "\n")
+}
+
+// CustomAppConfig defines Migaloo's custom application configuration.
+type CustomAppConfig struct {
+	serverconfig.Config
+
+	// BypassMinFeeMsgTypes defines custom message types the operator may set that
+	// will bypass minimum fee checks during CheckTx.
+	// NOTE:
+	// bypass-min-fee-msg-types = [] will deactivate the bypass - no messages will be allowed to bypass the minimum fee check
+	// bypass-min-fee-msg-types = [<some_msg_type>] will allow messages of specified type to bypass the minimum fee check
+	// omitting bypass-min-fee-msg-types from the config file will use the default values: ["/ibc.core.channel.v1.MsgRecvPacket", "/ibc.core.channel.v1.MsgAcknowledgement", "/ibc.core.client.v1.MsgUpdateClient"]
+	BypassMinFeeMsgTypes []string `mapstructure:"bypass-min-fee-msg-types"`
+}