diff --git a/assets/src/components/settings/Profile.vue b/assets/src/components/settings/Profile.vue
index 2a907c59..f2b0e452 100644
--- a/assets/src/components/settings/Profile.vue
+++ b/assets/src/components/settings/Profile.vue
@@ -6,7 +6,7 @@
       <li><router-link to="/settings/global">{{ $t('settings.goTo') }} {{ $t('settings.globalSettings') }}</router-link></li>
     </ul>
 
-    <form @submit="changePassword">
+    <form @submit="updatePassword">
       <h2>{{ $t('settings.changePassword') }}</h2>
       <p><input :class="passwordClass" type="password" :placeholder="$t('settings.newPassword')" v-model="password" name="password"></p>
       <p><input :class="passwordClass" type="password" :placeholder="$t('settings.newPasswordConfirm')" v-model="passwordConf" name="password"></p>
@@ -14,7 +14,7 @@
     </form>
 
     <form @submit="updateCSS">
-      <h2>{{ $t('settings.changePassword') }}</h2>
+      <h2>{{ $t('settings.customStylesheet') }}</h2>
       <textarea v-model="css" name="css"></textarea>
       <p><input type="submit" :value="$t('buttons.update')"></p>
     </form>
@@ -23,7 +23,7 @@
 
 <script>
 import { mapState, mapMutations } from 'vuex'
-import api from '@/utils/api'
+import { updateUser } from '@/utils/api'
 
 export default {
   name: 'settings',
@@ -53,14 +53,19 @@ export default {
   },
   methods: {
     ...mapMutations([ 'showSuccess' ]),
-    changePassword (event) {
+    updatePassword (event) {
       event.preventDefault()
 
       if (this.password !== this.passwordConf) {
         return
       }
 
-      api.updatePassword(this.password).then(() => {
+      let user = {
+        ID: this.$store.state.user.ID,
+        password: this.password
+      }
+
+      updateUser(user, 'password').then(location => {
         this.showSuccess(this.$t('settings.passwordUpdated'))
       }).catch(e => {
         this.$store.commit('showError', e)
@@ -69,7 +74,12 @@ export default {
     updateCSS (event) {
       event.preventDefault()
 
-      api.updateCSS(this.css).then(() => {
+      let user = {
+        ID: this.$store.state.user.ID,
+        css: this.css
+      }
+
+      updateUser(user, 'css').then(location => {
         this.$store.commit('setUserCSS', this.css)
         this.$emit('css-updated')
         this.showSuccess(this.$t('settings.stylesUpdated'))
diff --git a/assets/src/components/settings/User.vue b/assets/src/components/settings/User.vue
index 4ed98148..a46efc08 100644
--- a/assets/src/components/settings/User.vue
+++ b/assets/src/components/settings/User.vue
@@ -68,7 +68,7 @@
 
 <script>
 import { mapMutations } from 'vuex'
-import api from '@/utils/api'
+import { getUser, newUser, updateUser, deleteUser } from '@/utils/api'
 
 export default {
   name: 'user',
@@ -118,7 +118,7 @@ export default {
         user = 'base'
       }
 
-      api.getUser(user).then(user => {
+      getUser(user).then(user => {
         this.id = user.ID
         this.admin = user.admin
         this.allowCommands = user.allowCommands
@@ -181,7 +181,7 @@ export default {
     deleteUser (event) {
       event.preventDefault()
 
-      api.deleteUser(this.id).then(location => {
+      deleteUser(this.id).then(location => {
         this.$router.push({ path: '/users' })
         this.$store.commit('showSuccess', this.$t('settings.userDeleted'))
       }).catch(e => {
@@ -193,7 +193,7 @@ export default {
       let user = this.parseForm()
 
       if (this.$route.path === '/settings/users/new') {
-        api.newUser(user).then(location => {
+        newUser(user).then(location => {
           this.$router.push({ path: location })
           this.$store.commit('showSuccess', this.$t('settings.userCreated'))
         }).catch(e => {
@@ -203,7 +203,7 @@ export default {
         return
       }
 
-      api.updateUser(user).then(location => {
+      updateUser(user).then(location => {
         this.$store.commit('showSuccess', this.$t('settings.userUpdated'))
       }).catch(e => {
         this.$store.commit('showError', e)
diff --git a/assets/src/i18n/index.js b/assets/src/i18n/index.js
index 86bf60ed..13dc6b07 100644
--- a/assets/src/i18n/index.js
+++ b/assets/src/i18n/index.js
@@ -7,7 +7,7 @@ import zhCN from './zh_cn.yaml'
 Vue.use(VueI18n)
 
 export default new VueI18n({
-  locale: 'zh_cn',
+  locale: 'en',
   fallbackLocale: 'en',
   messages: {
     'en': en,
diff --git a/assets/src/utils/api.js b/assets/src/utils/api.js
index f908404e..92a9ac34 100644
--- a/assets/src/utils/api.js
+++ b/assets/src/utils/api.js
@@ -2,7 +2,7 @@ import store from '@/store'
 
 const ssl = (window.location.protocol === 'https:')
 
-function removePrefix (url) {
+export function removePrefix (url) {
   if (url.startsWith('/files')) {
     return url.slice(6)
   }
@@ -10,7 +10,7 @@ function removePrefix (url) {
   return url
 }
 
-function fetch (url) {
+export function fetch (url) {
   url = removePrefix(url)
 
   return new Promise((resolve, reject) => {
@@ -33,7 +33,7 @@ function fetch (url) {
   })
 }
 
-function rm (url) {
+export function rm (url) {
   url = removePrefix(url)
 
   return new Promise((resolve, reject) => {
@@ -54,7 +54,7 @@ function rm (url) {
   })
 }
 
-function post (url, content = '') {
+export function post (url, content = '') {
   url = removePrefix(url)
 
   return new Promise((resolve, reject) => {
@@ -75,7 +75,7 @@ function post (url, content = '') {
   })
 }
 
-function put (url, content = '') {
+export function put (url, content = '') {
   url = removePrefix(url)
 
   return new Promise((resolve, reject) => {
@@ -96,7 +96,7 @@ function put (url, content = '') {
   })
 }
 
-function moveCopy (items, copy = false) {
+export function moveCopy (items, copy = false) {
   let promises = []
 
   for (let item of items) {
@@ -129,15 +129,15 @@ function moveCopy (items, copy = false) {
   return Promise.all(promises)
 }
 
-function move (items) {
+export function move (items) {
   return moveCopy(items)
 }
 
-function copy (items) {
+export function copy (items) {
   return moveCopy(items, true)
 }
 
-function checksum (url, algo) {
+export function checksum (url, algo) {
   url = removePrefix(url)
 
   return new Promise((resolve, reject) => {
@@ -157,7 +157,7 @@ function checksum (url, algo) {
   })
 }
 
-function command (url, command, onmessage, onclose) {
+export function command (url, command, onmessage, onclose) {
   let protocol = (ssl ? 'wss:' : 'ws:')
   url = removePrefix(url)
   url = `${protocol}//${window.location.host}${store.state.baseURL}/api/command${url}`
@@ -168,7 +168,7 @@ function command (url, command, onmessage, onclose) {
   conn.onclose = onclose
 }
 
-function search (url, search, onmessage, onclose) {
+export function search (url, search, onmessage, onclose) {
   let protocol = (ssl ? 'wss:' : 'ws:')
   url = removePrefix(url)
   url = `${protocol}//${window.location.host}${store.state.baseURL}/api/search${url}`
@@ -179,7 +179,7 @@ function search (url, search, onmessage, onclose) {
   conn.onclose = onclose
 }
 
-function download (format, ...files) {
+export function download (format, ...files) {
   let url = `${store.state.baseURL}/api/download`
 
   if (files.length === 1) {
@@ -203,7 +203,7 @@ function download (format, ...files) {
   window.open(url)
 }
 
-function getUsers () {
+export function getUsers () {
   return new Promise((resolve, reject) => {
     let request = new window.XMLHttpRequest()
     request.open('GET', `${store.state.baseURL}/api/users/`, true)
@@ -224,7 +224,7 @@ function getUsers () {
   })
 }
 
-function getUser (id) {
+export function getUser (id) {
   return new Promise((resolve, reject) => {
     let request = new window.XMLHttpRequest()
     request.open('GET', `${store.state.baseURL}/api/users/${id}`, true)
@@ -245,7 +245,7 @@ function getUser (id) {
   })
 }
 
-function newUser (user) {
+export function newUser (user) {
   return new Promise((resolve, reject) => {
     let request = new window.XMLHttpRequest()
     request.open('POST', `${store.state.baseURL}/api/users/`, true)
@@ -266,7 +266,7 @@ function newUser (user) {
   })
 }
 
-function updateUser (user) {
+export function updateUser (user, which) {
   return new Promise((resolve, reject) => {
     let request = new window.XMLHttpRequest()
     request.open('PUT', `${store.state.baseURL}/api/users/${user.ID}`, true)
@@ -283,11 +283,15 @@ function updateUser (user) {
       }
     }
     request.onerror = (error) => reject(error)
-    request.send(JSON.stringify(user))
+    request.send(JSON.stringify({
+      what: 'user',
+      which: (typeof which === 'string') ? which : 'all',
+      data: user
+    }))
   })
 }
 
-function deleteUser (id) {
+export function deleteUser (id) {
   return new Promise((resolve, reject) => {
     let request = new window.XMLHttpRequest()
     request.open('DELETE', `${store.state.baseURL}/api/users/${id}`, true)
@@ -308,49 +312,7 @@ function deleteUser (id) {
   })
 }
 
-function updatePassword (password) {
-  return new Promise((resolve, reject) => {
-    let request = new window.XMLHttpRequest()
-    request.open('PUT', `${store.state.baseURL}/api/users/change-password`, true)
-    request.setRequestHeader('Authorization', `Bearer ${store.state.jwt}`)
-
-    request.onload = () => {
-      switch (request.status) {
-        case 200:
-          resolve()
-          break
-        default:
-          reject(request.responseText)
-          break
-      }
-    }
-    request.onerror = (error) => reject(error)
-    request.send(JSON.stringify({ 'password': password }))
-  })
-}
-
-function updateCSS (css) {
-  return new Promise((resolve, reject) => {
-    let request = new window.XMLHttpRequest()
-    request.open('PUT', `${store.state.baseURL}/api/users/change-css`, true)
-    request.setRequestHeader('Authorization', `Bearer ${store.state.jwt}`)
-
-    request.onload = () => {
-      switch (request.status) {
-        case 200:
-          resolve()
-          break
-        default:
-          reject(request.responseText)
-          break
-      }
-    }
-    request.onerror = (error) => reject(error)
-    request.send(JSON.stringify({ 'css': css }))
-  })
-}
-
-function getCommands () {
+export function getCommands () {
   return new Promise((resolve, reject) => {
     let request = new window.XMLHttpRequest()
     request.open('GET', `${store.state.baseURL}/api/commands/`, true)
@@ -371,7 +333,7 @@ function getCommands () {
   })
 }
 
-function updateCommands (commands) {
+export function updateCommands (commands) {
   return new Promise((resolve, reject) => {
     let request = new window.XMLHttpRequest()
     request.open('PUT', `${store.state.baseURL}/api/commands/`, true)
@@ -392,7 +354,7 @@ function updateCommands (commands) {
   })
 }
 
-function getPlugins () {
+export function getPlugins () {
   return new Promise((resolve, reject) => {
     let request = new window.XMLHttpRequest()
     request.open('GET', `${store.state.baseURL}/api/plugins/`, true)
@@ -413,7 +375,7 @@ function getPlugins () {
   })
 }
 
-function updatePlugins (data) {
+export function updatePlugins (data) {
   return new Promise((resolve, reject) => {
     let request = new window.XMLHttpRequest()
     request.open('PUT', `${store.state.baseURL}/api/plugins/`, true)
@@ -449,8 +411,6 @@ export default {
   newUser,
   updateUser,
   getUsers,
-  updatePassword,
-  updateCSS,
   getCommands,
   updateCommands,
   removePrefix,
diff --git a/filemanager.go b/filemanager.go
index 92c15d3c..ab5015b7 100644
--- a/filemanager.go
+++ b/filemanager.go
@@ -70,11 +70,15 @@ import (
 )
 
 var (
-	errUserExist     = errors.New("user already exists")
-	errUserNotExist  = errors.New("user does not exist")
-	errEmptyRequest  = errors.New("request body is empty")
-	errEmptyPassword = errors.New("password is empty")
-	plugins          = map[string]Plugin{}
+	errUserExist          = errors.New("user already exists")
+	errUserNotExist       = errors.New("user does not exist")
+	errEmptyRequest       = errors.New("request body is empty")
+	errEmptyPassword      = errors.New("password is empty")
+	errEmptyUsername      = errors.New("username is empty")
+	errEmptyScope         = errors.New("scope is empty")
+	errWrongDataType      = errors.New("wrong data type")
+	errInvalidUpdateField = errors.New("invalid field to update")
+	plugins               = map[string]Plugin{}
 )
 
 // FileManager is a file manager instance. It should be creating using the
diff --git a/users.go b/users.go
index 6eab4e03..3fda96af 100644
--- a/users.go
+++ b/users.go
@@ -11,20 +11,22 @@ import (
 	"github.com/asdine/storm"
 )
 
+type modifyRequest struct {
+	What  string `json:"what"`  // Answer to: what data type?
+	Which string `json:"which"` // Answer to: which field?
+}
+
+type modifyUserRequest struct {
+	*modifyRequest
+	Data *User `json:"data"`
+}
+
 // usersHandler is the entry point of the users API. It's just a router
 // to send the request to its
 func usersHandler(c *RequestContext, w http.ResponseWriter, r *http.Request) (int, error) {
-	if r.URL.Path == "/change-password" {
-		return usersUpdatePassword(c, w, r)
-	}
-
-	if r.URL.Path == "/change-css" {
-		return usersUpdateCSS(c, w, r)
-	}
-
-	// If the user is admin and the HTTP Method is not
-	// PUT, then we return forbidden.
-	if !c.User.Admin {
+	// If the user isn't admin and isn't making a PUT
+	// request, then return forbidden.
+	if !c.User.Admin && r.Method != http.MethodPut {
 		return http.StatusForbidden, nil
 	}
 
@@ -61,19 +63,25 @@ func getUserID(r *http.Request) (int, error) {
 // getUser returns the user which is present in the request
 // body. If the body is empty or the JSON is invalid, it
 // returns an error.
-func getUser(r *http.Request) (*User, error) {
+func getUser(r *http.Request) (*User, string, error) {
+	// Checks if the request body is empty.
 	if r.Body == nil {
-		return nil, errEmptyRequest
+		return nil, "", errEmptyRequest
 	}
 
-	u := &User{}
-
-	err := json.NewDecoder(r.Body).Decode(u)
+	// Parses the request body and checks if it's well formed.
+	mod := &modifyUserRequest{}
+	err := json.NewDecoder(r.Body).Decode(mod)
 	if err != nil {
-		return nil, err
+		return nil, "", err
 	}
 
-	return u, nil
+	// Checks if the request type is right.
+	if mod.What != "user" {
+		return nil, "", errWrongDataType
+	}
+
+	return mod.Data, mod.Which, nil
 }
 
 func usersGetHandler(c *RequestContext, w http.ResponseWriter, r *http.Request) (int, error) {
@@ -127,11 +135,26 @@ func usersPostHandler(c *RequestContext, w http.ResponseWriter, r *http.Request)
 		return http.StatusMethodNotAllowed, nil
 	}
 
-	u, err := getUser(r)
+	u, _, err := getUser(r)
 	if err != nil {
 		return http.StatusBadRequest, err
 	}
 
+	// Checks if username isn't empty.
+	if u.Username == "" {
+		return http.StatusBadRequest, errEmptyUsername
+	}
+
+	// Checks if filesystem isn't empty.
+	if u.FileSystem == "" {
+		return http.StatusBadRequest, errEmptyScope
+	}
+
+	// Checks if password isn't empty.
+	if u.Password == "" {
+		return http.StatusBadRequest, errEmptyPassword
+	}
+
 	// The username, password and scope cannot be empty.
 	if u.Username == "" || u.Password == "" || u.FileSystem == "" {
 		return http.StatusBadRequest, errors.New("username, password or scope is empty")
@@ -210,72 +233,73 @@ func usersDeleteHandler(c *RequestContext, w http.ResponseWriter, r *http.Reques
 	return http.StatusOK, nil
 }
 
-func usersUpdatePassword(c *RequestContext, w http.ResponseWriter, r *http.Request) (int, error) {
-	if r.Method != http.MethodPut {
-		return http.StatusMethodNotAllowed, nil
-	}
-
-	u, err := getUser(r)
-	if err != nil {
-		return http.StatusBadRequest, err
-	}
-
-	if u.Password == "" {
-		return http.StatusBadRequest, errEmptyPassword
-	}
-
-	pw, err := hashPassword(u.Password)
-	if err != nil {
-		return http.StatusInternalServerError, err
-	}
-
-	c.User.Password = pw
-	err = c.FM.db.UpdateField(&User{ID: c.User.ID}, "Password", pw)
-	if err != nil {
-		return http.StatusInternalServerError, err
-	}
-
-	return http.StatusOK, nil
-}
-
-func usersUpdateCSS(c *RequestContext, w http.ResponseWriter, r *http.Request) (int, error) {
-	if r.Method != http.MethodPut {
-		return http.StatusMethodNotAllowed, nil
-	}
-
-	u, err := getUser(r)
-	if err != nil {
-		return http.StatusBadRequest, err
-	}
-
-	c.User.CSS = u.CSS
-	err = c.FM.db.UpdateField(&User{ID: c.User.ID}, "CSS", u.CSS)
-	if err != nil {
-		return http.StatusInternalServerError, err
-	}
-
-	return http.StatusOK, nil
-}
-
 func usersPutHandler(c *RequestContext, w http.ResponseWriter, r *http.Request) (int, error) {
 	// New users should be created on /api/users.
 	if r.URL.Path == "/" {
 		return http.StatusMethodNotAllowed, nil
 	}
 
+	// Gets the user ID from the URL and checks if it's valid.
 	id, err := getUserID(r)
 	if err != nil {
 		return http.StatusInternalServerError, err
 	}
 
-	u, err := getUser(r)
+	// Checks if the user has permission to access this page.
+	if !c.User.Admin && id != c.User.ID {
+		return http.StatusForbidden, nil
+	}
+
+	// Gets the user from the request body.
+	u, which, err := getUser(r)
 	if err != nil {
 		return http.StatusBadRequest, err
 	}
 
-	// The username and the filesystem cannot be empty.
-	if u.Username == "" || u.FileSystem == "" {
-		return http.StatusBadRequest, errors.New("Username, password or scope are empty")
+	// Updates the CSS.
+	if which == "css" {
+		c.User.CSS = u.CSS
+		err = c.FM.db.UpdateField(&User{ID: c.User.ID}, "CSS", u.CSS)
+		if err != nil {
+			return http.StatusInternalServerError, err
+		}
+
+		return http.StatusOK, nil
+	}
+
+	// Updates the Password.
+	if which == "password" {
+		if u.Password == "" {
+			return http.StatusBadRequest, errEmptyPassword
+		}
+
+		pw, err := hashPassword(u.Password)
+		if err != nil {
+			return http.StatusInternalServerError, err
+		}
+
+		c.User.Password = pw
+		err = c.FM.db.UpdateField(&User{ID: c.User.ID}, "Password", pw)
+		if err != nil {
+			return http.StatusInternalServerError, err
+		}
+
+		return http.StatusOK, nil
+	}
+
+	// If can only be all.
+	if which != "all" {
+		return http.StatusBadRequest, errInvalidUpdateField
+	}
+
+	// Checks if username isn't empty.
+	if u.Username == "" {
+		return http.StatusBadRequest, errEmptyUsername
+	}
+
+	// Checks if filesystem isn't empty.
+	if u.FileSystem == "" {
+		return http.StatusBadRequest, errEmptyScope
 	}
 
 	// Initialize rules if they're not initialized.
@@ -288,31 +312,33 @@ func usersPutHandler(c *RequestContext, w http.ResponseWriter, r *http.Request)
 		u.Commands = []string{}
 	}
 
-	var ouser *User
+	// Gets the current saved user from the in-memory map.
+	var suser *User
 	for _, user := range c.FM.Users {
 		if user.ID == id {
-			ouser = user
+			suser = user
 			break
 		}
 	}
-
-	if ouser == nil {
+	if suser == nil {
 		return http.StatusNotFound, nil
 	}
 
 	u.ID = id
 
-	if u.Password == "" {
-		u.Password = ouser.Password
-	} else {
+	// Changes the password if the request wants it.
+	if u.Password != "" {
 		pw, err := hashPassword(u.Password)
 		if err != nil {
 			return http.StatusInternalServerError, err
 		}
 
 		u.Password = pw
+	} else {
+		u.Password = suser.Password
 	}
 
+	// Default permissions if current are nil.
 	if u.Permissions == nil {
 		u.Permissions = c.FM.DefaultUser.Permissions
 	}
@@ -326,8 +352,8 @@ func usersPutHandler(c *RequestContext, w http.ResponseWriter, r *http.Request)
 
 	// If the user changed the username, delete the old user
 	// from the in-memory user map.
-	if ouser.Username != u.Username {
-		delete(c.FM.Users, ouser.Username)
+	if suser.Username != u.Username {
+		delete(c.FM.Users, suser.Username)
 	}
 
 	c.FM.Users[u.Username] = u