Add FIFO mode for client
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42
Client.md
42
Client.md
@ -7,12 +7,20 @@ When GoSmartKeyboard is started in client mode, it does the following:
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3. Connect to the server.
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4 Send the auth token to the server.
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5. If the server responds with "authenticated", we start reading keys from stdin and sending them to the server until EOF.
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6. If KEYBOARD_FIFO is specified as an environment variable, we read from the path specified there instead as a named pipe.
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``` go
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--- handle client command
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if len(os.Args) > 1 && os.Args[1] == "connect" {
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@{start client}
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@{get client fifo input file from environment}
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@{setup client}
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if clientFifioInputFileExists {
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@{start client with fifo}
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os.Exit(0)
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}
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@{start client with stdin}
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os.Exit(0)
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}
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@ -26,7 +34,7 @@ The base64 authentication token is loaded from the environment variable `KEYBOAR
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``` go
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--- start client
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--- setup client
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@{load connection URL from second CLI argument}
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@{get authTokenInput from environment}
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@ -80,14 +88,40 @@ if !strings.HasPrefix(connectionURL, "ws://") && !strings.HasPrefix(connectionUR
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```
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## Sending keys
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## Sending keys from a named pipe
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``` go
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--- start client with fifo
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for {
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input, err := ioutil.ReadFile(clientFifoInputFile)
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if err != nil {
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log.Fatal(err)
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}
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if len(input) > 0 {
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fmt.Println("send" + strings.Replace(string(input), " ", "space", 10))
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err = client.WriteMessage(websocket.TextMessage, input)
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if err != nil {
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log.Fatal("write:", err)
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}
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}
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}
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---
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```
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## Sending keys from stdin
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We read keys from stdin and send them to the server until we get EOF
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``` go
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--- start client +=
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--- start client with stdin
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reader := bufio.NewReader(os.Stdin)
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for {
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@ -24,6 +24,14 @@ authTokenFile, authTokenFileIsSet := os.LookupEnv("KEYBOARD_AUTH_TOKEN_FILE")
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---
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## Client fifo
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--- get client fifo input file from environment
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clientFifoInputFile, clientFifioInputFileExists := os.LookupEnv("KEYBOARD_FIFO")
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---
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## HTTP Bind Settings
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@ -88,6 +88,7 @@ Then we can start the web server and listen for websocket connections.
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"io"
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"strings"
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"bufio"
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"io/ioutil"
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"log"
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@{gorilla/websocket import string}
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"keyboard.voidnet.tech/server"
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