95 lines
2.7 KiB
Go
95 lines
2.7 KiB
Go
package handlers
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import (
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"fmt"
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"os"
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"os/exec"
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"strings"
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"github.com/tjboldt/Apple2-IO-RPi/RaspberryPi/apple2driver/a2io"
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)
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var forceLowercase = false
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func ExecCommand() {
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workingDirectory, err := os.Getwd()
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if err != nil {
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workingDirectory = "/home"
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a2io.WriteString("Failed to get current working directory, setting to /home\r")
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}
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fmt.Printf("Reading command to execute...\n")
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linuxCommand, err := a2io.ReadString()
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if forceLowercase {
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linuxCommand = strings.ToLower(linuxCommand)
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}
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fmt.Printf("Command to run: %s\n", linuxCommand)
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if strings.HasPrefix(linuxCommand, "cd ") {
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workingDirectory = strings.Replace(linuxCommand, "cd ", "", 1)
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err = os.Chdir(workingDirectory)
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if err != nil {
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a2io.WriteString("Failed to set working directory\r")
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return
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}
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a2io.WriteString("Working directory set\r")
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return
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}
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if linuxCommand == "a2help" {
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a2io.WriteString("\r" +
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"This is a pseudo shell. Each command is executed as a process. The cd command\r" +
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"is intercepted and sets the working directory for the next command. Running\r" +
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"commands that do not exit will hang. For example, do not use ping without a\r" +
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"way to limit output like -c 1.\r" +
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"\r" +
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"Built-in commands:\r" +
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"a2help - display this message\r" +
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"a2wifi - set up wifi\r" +
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"A2LOWER - force lowercase for II+\r" +
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"\r")
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return
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}
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if linuxCommand == "A2LOWER" {
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forceLowercase = true
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}
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if linuxCommand == "a2wifi" {
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a2io.WriteString("\r" +
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"Usage: a2wifi list\r" +
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" a2wifi select SSID PASSWORD\r" +
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"\r")
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return
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}
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if linuxCommand == "a2wifi list" {
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linuxCommand = "sudo iwlist wlan0 scanning | grep ESSID | sed s/.*ESSID://g | sed s/\\\"//g"
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}
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if strings.HasPrefix(linuxCommand, "a2wifi select") {
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params := strings.Fields(linuxCommand)
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if len(params) != 4 {
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a2io.WriteString("\rIncorrect number of parameters. Usage: a2wifi select SSID PASSWORD\r\r")
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return
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}
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ssid := params[2]
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psk := params[3]
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linuxCommand = "printf \"country=ca\\nupdate_config=1\\nctrl_interface=/var/run/wpa_supplicant\\n\\nnetwork={\\n scan_ssid=1\\n ssid=\\\"%s\\\"\n psk=\\\"%s\\\"\\n}\\n\" " +
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ssid + " " +
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psk + " " +
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" > /tmp/wpa_supplicant.conf; " +
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"sudo mv /tmp/wpa_supplicant.conf /etc/wpa_supplicant/; " +
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"sudo wpa_cli -i wlan0 reconfigure"
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}
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cmd := exec.Command("bash", "-c", linuxCommand)
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cmd.Dir = workingDirectory
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cmdOut, err := cmd.Output()
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if err != nil {
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fmt.Printf("Failed to execute command\n")
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a2io.WriteString("Failed to execute command\r")
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return
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}
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fmt.Printf("Command output: %s\n", cmdOut)
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apple2string := strings.Replace(string(cmdOut), "\n", "\r", -1)
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err = a2io.WriteString(apple2string)
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if err != nil {
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fmt.Printf("Failed to send command output\n")
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return
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}
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}
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