From 84ec601e2a1d4f3eef561d7b7cd8b0a4994922dd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rn-Michael=20Miehe?= <jmm@yavook.de>
Date: Tue, 7 May 2019 22:15:18 +0200
Subject: [PATCH] logout

---
 backend/routes/user/logout.coffee | 25 +++++++++++++++++++++++++
 backend/server.coffee             |  2 ++
 backend/session.coffee            | 10 ++++++++++
 frontend/src/views/About.vue      | 16 ++++++++++++++++
 4 files changed, 53 insertions(+)
 create mode 100644 backend/routes/user/logout.coffee

diff --git a/backend/routes/user/logout.coffee b/backend/routes/user/logout.coffee
new file mode 100644
index 0000000..a8e6a07
--- /dev/null
+++ b/backend/routes/user/logout.coffee
@@ -0,0 +1,25 @@
+logger = (require 'logging').default 'logout'
+
+# session storage (volatile data)
+session = (require '../../session')
+# fftcg.db (persistent data)
+fftcgdb = (require '../../db')
+
+module.exports =
+  url: '/user/logout'
+  method: 'POST'
+
+  handler: (request, reply) ->
+    new Promise (resolve) ->
+      session.destroy request.body.session ? ""
+      .then ->
+        # active session found
+        logger.debug "OK removed session '#{request.body.session}'"
+        resolve null
+
+      .catch ->
+        resolve null
+
+    .then ->
+      reply.send
+        success: true
diff --git a/backend/server.coffee b/backend/server.coffee
index 709616a..eef08d7 100644
--- a/backend/server.coffee
+++ b/backend/server.coffee
@@ -14,6 +14,8 @@ fastify.route (require "./routes/#{route}") for route in [
   'test'
   # log in user
   'user/login'
+  # log out user
+  'user/logout'
   # register user
   'user/register'
 ]
diff --git a/backend/session.coffee b/backend/session.coffee
index 6861435..56999cf 100644
--- a/backend/session.coffee
+++ b/backend/session.coffee
@@ -33,6 +33,16 @@ class FFTCGSESSION
         logger.info "OK '#{digest}' created"
         resolve digest
 
+  destroy: (digest) ->
+    new Promise (resolve, reject) =>
+      # delete hash immediately
+      @db.del digest, (err, res) ->
+        if res == 0
+          reject null
+        else
+          logger.info "OK '#{digest}' deleted"
+          resolve null
+
   check: (digest) ->
     new Promise (resolve, reject) =>
       # refresh expiry timer on digest
diff --git a/frontend/src/views/About.vue b/frontend/src/views/About.vue
index 3b3c1b9..9b52346 100644
--- a/frontend/src/views/About.vue
+++ b/frontend/src/views/About.vue
@@ -7,6 +7,7 @@
       </p>
     </v-flex>
     <p>user session: {{ sessionID }}</p>
+    <v-btn @click.native="logout">Logout</v-btn>
   </v-container>
 </template>
 
@@ -21,6 +22,21 @@ export default {
     sessionID: ''
   }),
 
+  methods: {
+    logout() {
+      axios
+        .post('/user/logout', {
+          session: Cookies.get('session')
+        })
+        .then(response => {
+          if (response.data.success) {
+            Cookies.remove('session')
+            this.$router.push({name: 'home'})
+          }
+        })
+    }
+  },
+
   mounted() {
     axios
       .post('/user/login', {