added some more commands

commands/commands.js

@@ -2,6 +2,7 @@ let currentState = {
     "username": "guest",
     "directory": "/"
 }
+
 const fileSystem = require("../filesystem.json")
 
 function getCurrentDir(){
@@ -15,8 +16,6 @@ function customTextResponse(res, txt){
 
 function ls(res) {
     const command = "ls";
-
-
     const contents = fileSystem[currentState.directory];
 
     if (contents && typeof contents === 'object') {
@@ -27,13 +26,125 @@ function ls(res) {
     }
 }
 
+function whoami(res){
+    const command = "whoami"
+    respondToCommand(res, currentState.username, currentState.directory, command);
+}
 
+function cd (res, raw_command) {
+    const command = "cd";
+    let arguement = raw_command.split(" ")[1]
+
+    //check if folder to cd to is in current dir
+    const contents = fileSystem[currentState.directory];
+
+    if (contents && typeof contents==="object"){
+        let keys = Object.keys(contents);
+        for (let i = 0; i < keys.length; i++){
+            let key = keys[i]
+
+            if (key == arguement && fileSystem[currentState.directory][key] == "dir"){
+                currentState.directory = currentState.directory + arguement;
+
+                if (!currentState.directory.endsWith("/")) currentState.directory += "/";
+                respondToCommand(res, "", currentState.directory, command);
+                return;
+            }
+            else if (key == arguement){
+                respondToCommand(res, "You cannot open a file as a directory", currentState.directory, command);
+                return;
+            }
+        }
+
+        // check a few things:
+        if (arguement == "/" || arguement == "~" || arguement == "~/"){
+            currentState.directory = "/";
+            respondToCommand(res, "", currentState.directory, command);
+            return;
+        }
+
+        if (arguement == ".." || arguement == "../"){
+            //move 1 folder back
+            const lastSlashIndex = currentState.directory.lastIndexOf('/');
+            const pathWithoutTrailingSlash = lastSlashIndex === currentState.directory.length - 1 ? currentState.directory.substring(0, currentState.directory.length - 1) : currentState.directory;
+            const secondLastSlashIndex = pathWithoutTrailingSlash.lastIndexOf('/');
+            currentState.directory = pathWithoutTrailingSlash.substring(0, secondLastSlashIndex + 1);
+
+            respondToCommand(res, "", currentState.directory, command);
+            return;
+        }
+
+        respondToCommand(res, "Unable to open directory", currentState.directory, command);
+    }
+    else 
+    {
+        respondToCommand(res, "Internal Server Error, try again later.", currentState.directory, command)
+    }
+}
+
+function pwd (res){
+    const command = "pwd";
+    respondToCommand(res, currentState.directory, currentState.directory, command);
+}
+
+function cat (res, raw_command){
+    const command = "cat";
+    let arguement = raw_command.split(" ")[1]
+
+    //check if folder to cd to is in current dir
+    const contents = fileSystem[currentState.directory];
+
+    if (contents && typeof contents==="object"){
+        let keys = Object.keys(contents);
+        for (let i = 0; i < keys.length; i++){
+            let key = keys[i]
+
+            if (key == arguement && fileSystem[currentState.directory][key] != "dir"){
+                respondToCommand(res, fileSystem[currentState.directory][key], currentState.directory, command);
+                return;
+            }
+            else if (key == arguement){
+                respondToCommand(res, "You cannot open a directory as a file", currentState.directory, command);
+                return;
+            }
+        }
+        respondToCommand(res, "Unable to open file", currentState.directory, command)
+    }
+    else 
+    {
+        respondToCommand(res, "Internal Server Error, try again later.", currentState.directory, command)
+    }
+
+}
+
+
+
+function help(res){
+    const command = "help"
+    const text = `
+    Welcome to the fancy help menu!!<br>
+    Here is a list of the available commands:<br><br>
+
+    "help" - shows you this menu<br>
+    "ls" - shows you the files and directories in your current directory<br>
+    "cd" - move into a folder you specify, you can use the name of the folder, or you can also use things like ../ to move back one folder<br>
+    "whoami" - shows you as what user you are logged in as<br>
+    "pwd" - shows you the current directory you are currently working in<br>
+    "cat" - shows you the content of files, fox example cat file.txt shows you the content of file.txt if it is in the current directory<br>
+    `
+    respondToCommand(res, text, currentState.directory, command);
+}
 
 module.exports = {
     getCurrentDir,
     customTextResponse,
 
-    ls
+    ls,
+    whoami,
+    cd,
+    pwd,
+    cat,
+    help,
 }