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signer, log: properly escape character sequences (#20987)

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* signer: properly handle terminal escape characters

* log: use strconv conversion instead of custom escape function

* log: remove relection tests for nil
This commit is contained in:
Martin Holst Swende
2020-04-28 13:28:38 +02:00
committed by GitHub
parent 0708b573bc
commit 7f95a85fd4
5 changed files with 35 additions and 57 deletions
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14
signer/core/cliui.go
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@ -85,10 +85,19 @@ func (ui *CommandlineUI) confirm() bool {
return false
}
// sanitize quotes and truncates 'txt' if longer than 'limit'. If truncated,
// and ellipsis is added after the quoted string
func sanitize(txt string, limit int) string {
if len(txt) > limit {
return fmt.Sprintf("%q...", txt[:limit])
}
return fmt.Sprintf("%q", txt)
}
func showMetadata(metadata Metadata) {
fmt.Printf("Request context:\n\t%v -> %v -> %v\n", metadata.Remote, metadata.Scheme, metadata.Local)
fmt.Printf("\nAdditional HTTP header data, provided by the external caller:\n")
fmt.Printf("\tUser-Agent: %v\n\tOrigin: %v\n", metadata.UserAgent, metadata.Origin)
fmt.Printf("\tUser-Agent: %v\n\tOrigin: %v\n", sanitize(metadata.UserAgent, 200), sanitize(metadata.Origin, 100))
}
// ApproveTx prompt the user for confirmation to request to sign Transaction
@ -113,7 +122,6 @@ func (ui *CommandlineUI) ApproveTx(request *SignTxRequest) (SignTxResponse, erro
if request.Transaction.Data != nil {
d := *request.Transaction.Data
if len(d) > 0 {
fmt.Printf("data: %v\n", hexutil.Encode(d))
}
}
@ -145,7 +153,7 @@ func (ui *CommandlineUI) ApproveSignData(request *SignDataRequest) (SignDataResp
for _, nvt := range request.Messages {
fmt.Printf("\u00a0\u00a0%v\n", strings.TrimSpace(nvt.Pprint(1)))
}
fmt.Printf("raw data: \n%q\n", request.Rawdata)
fmt.Printf("raw data: \n\t%q\n", request.Rawdata)
fmt.Printf("data hash: %v\n", request.Hash)
fmt.Printf("-------------------------------------------\n")
showMetadata(request.Meta)