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refactor: accept enter in user prompts

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Until now, the process of receiving a file was aborted when an
empty entry (Enter) was made. It is common under *nix that
pressing Enter without prior input of other characters selects
the default answer. This would also make the process more
fluid for croc.

In most usecases the default choice will be 'Y'/'Yes'. The only
exception is the prompt for overwriting existing files. We default
to 'N'/'No' in this prompt to prevent accidental overwriting of
files.
This commit is contained in:
Niko Köser 2021-06-10 14:12:05 +02:00
parent c72aaf63cb
commit 5e0d6522b0
No known key found for this signature in database
GPG Key ID: F3F28C118DAA6375
2 changed files with 13 additions and 11 deletions
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6
src/cli/cli.go
View File

@ -116,8 +116,9 @@ func Run() (err error) {
_, basename := filepath.Split(fpath) _, basename := filepath.Split(fpath)
fnames = append(fnames, "'"+basename+"'") fnames = append(fnames, "'"+basename+"'")
} }
yn := utils.GetInput(fmt.Sprintf("Did you mean to send %s? (y/n) ", strings.Join(fnames, ", "))) promptMessage := fmt.Sprintf("Did you mean to send %s? (Y/n) ", strings.Join(fnames, ", "))
if strings.ToLower(yn) == "y" { choice := strings.ToLower(utils.GetInput(promptMessage))
if choice == "" || choice == "y" || choice == "yes" {
return send(c) return send(c)
} }
} }
@ -335,7 +336,6 @@ func makeTempFileWithString(s string) (fnames []string, err error) {
} }
fnames = []string{f.Name()} fnames = []string{f.Name()}
return return
} }
func getPaths(fnames []string) (paths []string, haveFolder bool, err error) { func getPaths(fnames []string) (paths []string, haveFolder bool, err error) {

18
src/croc/croc.go
View File

@ -812,11 +812,12 @@ func (c *Client) processMessageFileInfo(m message.Message) (done bool, err error
if !c.Options.NoPrompt || c.Options.Ask || senderInfo.Ask { if !c.Options.NoPrompt || c.Options.Ask || senderInfo.Ask {
if c.Options.Ask || senderInfo.Ask { if c.Options.Ask || senderInfo.Ask {
machID, _ := machineid.ID() machID, _ := machineid.ID()
fmt.Fprintf(os.Stderr, "\rYour machine id is '%s'.\n%s %s (%s) from '%s'? (y/n) ", machID, action, fname, utils.ByteCountDecimal(totalSize), senderInfo.MachineID) fmt.Fprintf(os.Stderr, "\rYour machine id is '%s'.\n%s %s (%s) from '%s'? (Y/n) ", machID, action, fname, utils.ByteCountDecimal(totalSize), senderInfo.MachineID)
} else { } else {
fmt.Fprintf(os.Stderr, "\r%s %s (%s)? (y/n) ", action, fname, utils.ByteCountDecimal(totalSize)) fmt.Fprintf(os.Stderr, "\r%s %s (%s)? (Y/n) ", action, fname, utils.ByteCountDecimal(totalSize))
} }
if strings.ToLower(strings.TrimSpace(utils.GetInput(""))) != "y" { choice := strings.ToLower(utils.GetInput(""))
if choice != "" && choice != "y" && choice != "yes" {
err = message.Send(c.conn[0], c.Key, message.Message{ err = message.Send(c.conn[0], c.Key, message.Message{
Type: "error", Type: "error",
Message: "refusing files", Message: "refusing files",
@ -1011,8 +1012,9 @@ func (c *Client) processMessage(payload []byte) (done bool, err error) {
c.Step3RecipientRequestFile = true c.Step3RecipientRequestFile = true
if c.Options.Ask { if c.Options.Ask {
fmt.Fprintf(os.Stderr, "Send to machine '%s'? (y/n) ", remoteFile.MachineID) fmt.Fprintf(os.Stderr, "Send to machine '%s'? (Y/n) ", remoteFile.MachineID)
if strings.ToLower(strings.TrimSpace(utils.GetInput(""))) != "y" { choice := strings.ToLower(utils.GetInput(""))
if choice != "" && choice != "y" && choice != "yes" {
err = message.Send(c.conn[0], c.Key, message.Message{ err = message.Send(c.conn[0], c.Key, message.Message{
Type: "error", Type: "error",
Message: "refusing files", Message: "refusing files",
@ -1268,8 +1270,9 @@ func (c *Client) updateIfRecipientHasFileInfo() (err error) {
log.Debugf("hashes are not equal %x != %x", fileHash, fileInfo.Hash) log.Debugf("hashes are not equal %x != %x", fileHash, fileInfo.Hash)
if errHash == nil && !c.Options.Overwrite && errRecipientFile == nil && !strings.HasPrefix(fileInfo.Name, "croc-stdin-") { if errHash == nil && !c.Options.Overwrite && errRecipientFile == nil && !strings.HasPrefix(fileInfo.Name, "croc-stdin-") {
log.Debug("asking to overwrite") log.Debug("asking to overwrite")
ans := utils.GetInput(fmt.Sprintf("\nOverwrite '%s'? (y/n) ", path.Join(fileInfo.FolderRemote, fileInfo.Name))) prompt := fmt.Sprintf("\nOverwrite '%s'? (y/N) ", path.Join(fileInfo.FolderRemote, fileInfo.Name))
if strings.TrimSpace(strings.ToLower(ans)) != "y" { choice := strings.ToLower(utils.GetInput(prompt))
if choice != "y" && choice != "yes" {
fmt.Fprintf(os.Stderr, "skipping '%s'", path.Join(fileInfo.FolderRemote, fileInfo.Name)) fmt.Fprintf(os.Stderr, "skipping '%s'", path.Join(fileInfo.FolderRemote, fileInfo.Name))
continue continue
} }
@ -1516,7 +1519,6 @@ func (c *Client) sendData(i int) {
c.Key, c.Key,
) )
} else { } else {
dataToSend, err = crypt.Encrypt( dataToSend, err = crypt.Encrypt(
compress.Compress( compress.Compress(
append(posByte, data[:n]...), append(posByte, data[:n]...),