Revert "Add token authentication (#780)"

This reverts commit 0277091ddc.
This commits introduced a bug in offline mode.
We don't know yet how to fix it, so better revert first and fix later

docs/API.md

@@ -74,7 +74,7 @@ Returns a `Client` instance and perform login.
 `options` is an object containing the properties :
  * username
  * port : default to 25565
- * password : can be omitted (if the tokens and profilesFolder are also omitted then it tries to connect in offline mode)
+ * password : can be omitted (if the tokens are also omitted then it tries to connect in offline mode)
  * host : default to localhost
  * clientToken : generated if a password is given
  * accessToken : generated if a password is given
@@ -92,7 +92,6 @@ Returns a `Client` instance and perform login.
  * connect : a function taking the client as parameter and that should client.setSocket(socket) 
  and client.emit('connect') when appropriate (see the proxy examples for an example of use)
  * agent : a http agent that can be used to set proxy settings for yggdrasil authentication (see proxy-agent on npm) 
- * profilesFolder : the path to the folder that contains your `launcher_profiles.json`. defaults to your minecraft folder if it exists, otherwise the local directory. set to `false` to disable managing profiles
 
 ## mc.Client(isServer,version,[customPackets])
 

examples/client_echo/client_echo.js

@@ -1,17 +1,15 @@
 const mc = require('minecraft-protocol')
 
-if (process.argv.length !== 4) {
+if (process.argv.length < 4 || process.argv.length > 6) {
-  console.log('Usage : node echo.js <host> <port> [<name>]')
+  console.log('Usage : node echo.js <host> <port> [<name>] [<password>]')
   process.exit(1)
 }
 
 const client = mc.createClient({
   host: process.argv[2],
   port: parseInt(process.argv[3]),
-  username: process.argv[4] ? process.argv[4] : 'echo'
+  username: process.argv[4] ? process.argv[4] : 'echo',
-})
+  password: process.argv[5]
-client.on('error', function (err) {
-  console.error(err)
 })
 
 client.on('connect', function () {

package.json

@@ -44,18 +44,17 @@
   },
   "dependencies": {
     "aes-js": "^3.1.2",
+    "yggdrasil": "^1.3.0",
     "buffer-equal": "^1.0.0",
     "debug": "^4.1.0",
     "endian-toggle": "^0.0.0",
     "lodash.get": "^4.1.2",
     "lodash.merge": "^4.3.0",
     "minecraft-data": "^2.70.0",
-    "minecraft-folder-path": "^1.1.0",
     "node-rsa": "^0.4.2",
     "prismarine-nbt": "^1.3.0",
     "protodef": "^1.8.0",
     "readable-stream": "^3.0.6",
-    "uuid-1345": "^1.0.1",
+    "uuid-1345": "^1.0.1"
-    "yggdrasil": "^1.4.0"
   }
 }

src/client/auth.js

@@ -1,98 +1,16 @@
 const UUID = require('uuid-1345')
 const yggdrasil = require('yggdrasil')
-const fs = require('fs').promises
-const mcDefaultFolderPath = require('minecraft-folder-path')
-const path = require('path')
-
-module.exports = async function (client, options) {
-  if (!options.profilesFolder && options.profilesFolder !== false) { // not defined, but not explicitly false. fallback to default
-    let mcFolderExists = true
-    try {
-      await fs.access(mcDefaultFolderPath)
-    } catch (ignoreErr) {
-      mcFolderExists = false
-    }
-    options.profilesFolder = mcFolderExists ? mcDefaultFolderPath : '.' // local folder if mc folder doesn't exist
-  }
 
+module.exports = function (client, options) {
   const yggdrasilClient = yggdrasil({ agent: options.agent, host: options.authServer || 'https://authserver.mojang.com' })
-  const clientToken = options.clientToken || (options.session && options.session.clientToken) || (options.profilesFolder && (await getLauncherProfiles()).clientToken) || UUID.v4().toString().replace(/-/g, '')
+  const clientToken = options.clientToken || (options.session && options.session.clientToken) || UUID.v4().toString()
   const skipValidation = false || options.skipValidation
   options.accessToken = null
-  options.haveCredentials = options.password != null || (clientToken != null && options.session != null) || (options.profilesFolder && await hasProfileCredentials())
+  options.haveCredentials = options.password != null || (clientToken != null && options.session != null)
-
-  async function getLauncherProfiles () { // get launcher profiles
-    try {
-      return JSON.parse(await fs.readFile(path.join(options.profilesFolder, 'launcher_profiles.json'), 'utf8'))
-    } catch (err) {
-      await fs.mkdir(options.profilesFolder, { recursive: true })
-      await fs.writeFile(path.join(options.profilesFolder, 'launcher_profiles.json'), '{}')
-      return { authenticationDatabase: {} }
-    }
-  }
-
-  async function hasProfileCredentials () {
-    try {
-      const auths = await getLauncherProfiles()
-
-      const lowerUsername = options.username.toLowerCase()
-      return !!Object.keys(auths.authenticationDatabase).find(key =>
-        auths.authenticationDatabase[key].username.toLowerCase() === lowerUsername ||
-          Object.values(auths.authenticationDatabase[key].profiles)[0].displayName.toLowerCase() === lowerUsername
-      )
-    } catch (err) {
-      return false
-    }
-  }
 
   if (options.haveCredentials) {
     // make a request to get the case-correct username before connecting.
     const cb = function (err, session) {
-      if (options.profilesFolder) {
-        getLauncherProfiles().then((auths) => {
-          try {
-            const lowerUsername = options.username.toLowerCase()
-            let profile = Object.keys(auths.authenticationDatabase).find(key =>
-              auths.authenticationDatabase[key].username.toLowerCase() === lowerUsername ||
-                Object.values(auths.authenticationDatabase[key].profiles)[0].displayName.toLowerCase() === lowerUsername
-            )
-            if (err) {
-              if (profile) { // profile is invalid, remove
-                delete auths.authenticationDatabase[profile]
-              }
-            } else { // successful login
-              if (!profile) {
-                profile = UUID.v4().toString().replace(/-/g, '') // create new profile
-              }
-              if (!auths.clientToken) {
-                auths.clientToken = clientToken
-              }
-
-              if (clientToken === auths.clientToken) { // only do something when we can save a new clienttoken or they match
-                const oldProfileObj = auths.authenticationDatabase[profile]
-                const newProfileObj = {
-                  accessToken: session.accessToken,
-                  profiles: {},
-                  properties: oldProfileObj ? (oldProfileObj.properties || []) : [],
-                  username: options.username
-                }
-                newProfileObj.profiles[session.selectedProfile.id] = {
-                  displayName: session.selectedProfile.name
-                }
-                auths.authenticationDatabase[profile] = newProfileObj
-              }
-            }
-          } catch (ignoreErr) {
-            // again, silently fail, just don't save anything
-          }
-          fs.writeFile(path.join(options.profilesFolder, 'launcher_profiles.json'), JSON.stringify(auths, null, 2)).then(() => {}, (ignoreErr) => {
-            // console.warn("Couldn't save tokens:\n", err) // not any error, we just don't save the file
-          })
-        }, (ignoreErr) => {
-          // console.warn("Skipped saving tokens because of error\n", err) // not any error, we just don't save the file
-        })
-      }
-
       if (err) {
         client.emit('error', err)
       } else {
@@ -104,38 +22,6 @@ module.exports = async function (client, options) {
       }
     }
 
-    if (!options.session && options.profilesFolder) {
-      try {
-        const auths = await getLauncherProfiles()
-
-        const lowerUsername = options.username.toLowerCase()
-        const profile = Object.keys(auths.authenticationDatabase).find(key =>
-          auths.authenticationDatabase[key].username.toLowerCase() === lowerUsername ||
-            Object.values(auths.authenticationDatabase[key].profiles)[0].displayName.toLowerCase() === lowerUsername
-        )
-
-        if (profile) {
-          const newUsername = auths.authenticationDatabase[profile].username
-          const uuid = Object.keys(auths.authenticationDatabase[profile].profiles)[0]
-          const displayName = auths.authenticationDatabase[profile].profiles[uuid].displayName
-          const newProfile = {
-            name: displayName,
-            id: uuid
-          }
-
-          options.session = {
-            accessToken: auths.authenticationDatabase[profile].accessToken,
-            clientToken: auths.clientToken,
-            selectedProfile: newProfile,
-            availableProfiles: [newProfile]
-          }
-          options.username = newUsername
-        }
-      } catch (ignoreErr) {
-        // skip the error :/
-      }
-    }
-
     if (options.session) {
       if (!skipValidation) {
         yggdrasilClient.validate(options.session.accessToken, function (err) {
@@ -147,8 +33,7 @@ module.exports = async function (client, options) {
                 yggdrasilClient.auth({
                   user: options.username,
                   pass: options.password,
-                  token: clientToken,
+                  token: clientToken
-                  requestUser: true
                 }, cb)
               } else {
                 cb(err, data)