💍📖 Checkpoint

./package.json:530995/1427
./server.js:530995/873
./room.js:530995/325

package.json

@@ -12,7 +12,8 @@
   "dependencies": {
     "express": "^4.17.1",
     "express-handlebars": "^4.0.3",
-    "body-parser": "^1.19.0"
+    "body-parser": "^1.19.0",
+    "express-fingerprint": "^1.1.3"
   },
   "engines": {
     "node": "12.x"

room.js

@@ -0,0 +1,21 @@
+
+const rooms = {};
+
+export function getOrCreateRoom(roomId) {
+  let room = rooms[roomId];
+  
+  if (!room) {
+    room = {
+      roomId: roomId,
+      participants: []
+    };
+    rooms[roomId] = room;
+  }
+  
+  return room;
+}
+
+
+export addParticipant(roomId, participantId, participantName) {
+  
+}

server.js

@@ -1,13 +1,23 @@
 const express = require("express");
 const exphbs  = require('express-handlebars');
 const bodyParser = require('body-parser')
+const Fingerprint = require('express-fingerprint')
 
 const app = express();
 
+app.use(Fingerprint({
+    parameters:[
+        Fingerprint.useragent,
+        Fingerprint.acceptHeaders,
+        Fingerprint.geoip
+    ]
+}));
+
 app.use(bodyParser.json());
 app.use(bodyParser.urlencoded({
   extended: true
 })); 
+
 app.engine('handlebars', exphbs());
 app.set('view engine', 'handlebars');
 

shrinkwrap.yaml

@@ -1,6 +1,7 @@
 dependencies:
   body-parser: 1.19.0
   express: 4.17.1
+  express-fingerprint: 1.1.3
   express-handlebars: 4.0.3
 packages:
   /accepts/1.3.7:
@@ -20,6 +21,19 @@ packages:
     dev: false
     resolution:
       integrity: sha1-5QNHYR1+aQlDIIu9r+vLwvuGbUY=
+  /async/2.6.3:
+    dependencies:
+      lodash: 4.17.15
+    dev: false
+    resolution:
+      integrity: sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==
+  /babel-runtime/6.26.0:
+    dependencies:
+      core-js: 2.6.11
+      regenerator-runtime: 0.11.1
+    dev: false
+    resolution:
+      integrity: sha1-llxwWGaOgrVde/4E/yM3vItWR/4=
   /balanced-match/1.0.0:
     dev: false
     resolution:
@@ -48,12 +62,22 @@ packages:
     dev: false
     resolution:
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+  /buffer-crc32/0.2.13:
+    dev: false
+    resolution:
+      integrity: sha1-DTM+PwDqxQqhRUq9MO+MKl2ackI=
   /bytes/3.1.0:
     dev: false
     engines:
       node: '>= 0.8'
     resolution:
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+  /colors/1.4.0:
+    dev: false
+    engines:
+      node: '>=0.1.90'
+    resolution:
+      integrity: sha512-a+UqTh4kgZg/SlGvfbzDHpgRu7AAQOmmqRHJnxhRZICKFUT91brVhNNt58CMWU9PsBbv3PDCZUHbVxuDiH2mtA==
   /commander/2.20.3:
     dev: false
     optional: true
@@ -87,6 +111,12 @@ packages:
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+  /core-js/2.6.11:
+    deprecated: 'core-js@<3 is no longer maintained and not recommended for usage due to the number of issues. Please, upgrade your dependencies to the actual version of core-js@3.'
+    dev: false
+    requiresBuild: true
+    resolution:
+      integrity: sha512-5wjnpaT/3dV+XB4borEsnAYQchn00XSgTAWKDkEqv+K8KevjbzmofK6hfJ9TZIlpj2N0xQpazy7PiRQiWHqzWg==
   /debug/2.6.9:
     dependencies:
       ms: 2.0.0
@@ -131,6 +161,17 @@ packages:
       node: '>= 0.6'
     resolution:
       integrity: sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc=
+  /express-fingerprint/1.1.3:
+    dependencies:
+      async: 2.6.3
+      babel-runtime: 6.26.0
+      geoip-lite: 1.4.1
+      murmurhash3js: 3.0.1
+      traverse: 0.6.6
+      useragent: 2.3.0
+    dev: false
+    resolution:
+      integrity: sha512-G8qdEE9T8V4VqcS6RUF1W8l+QXZdobFE5Fa8UoxqLoXRoJMNvXJZEn601kHZqqK6UDDW26QMFkcoQvCS8S7IzA==
   /express-handlebars/4.0.3:
     dependencies:
       glob: 7.1.6
@@ -180,6 +221,12 @@ packages:
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     resolution:
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+  /fd-slicer/1.1.0:
+    dependencies:
+      pend: 1.2.0
+    dev: false
+    resolution:
+      integrity: sha1-JcfInLH5B3+IkbvmHY85Dq4lbx4=
   /finalhandler/1.1.2:
     dependencies:
       debug: 2.6.9
@@ -214,6 +261,20 @@ packages:
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+  /geoip-lite/1.4.1:
+    dependencies:
+      async: 2.6.3
+      colors: 1.4.0
+      iconv-lite: 0.4.24
+      ip-address: 5.9.4
+      lazy: 1.0.11
+      rimraf: 2.7.1
+      yauzl: 2.10.0
+    dev: false
+    engines:
+      node: '>=5.10.0'
+    resolution:
+      integrity: sha512-uhPTk7ndEAnqpvNhcSQh51dIrMTGOmOPKIi4KgIHtuJbgaAGgON1Q1UFGhu4YSCnN1DVWTLqcpoL9/746x6Nqg==
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     dependencies:
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@@ -296,12 +357,43 @@ packages:
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+  /ip-address/5.9.4:
+    dependencies:
+      jsbn: 1.1.0
+      lodash: 4.17.15
+      sprintf-js: 1.1.2
+    dev: false
+    engines:
+      node: '>= 0.10'
+    resolution:
+      integrity: sha512-dHkI3/YNJq4b/qQaz+c8LuarD3pY24JqZWfjB8aZx1gtpc2MDILu9L9jpZe1sHpzo/yWFweQVn+U//FhazUxmw==
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+  /jsbn/1.1.0:
+    dev: false
+    resolution:
+      integrity: sha1-sBMHyym2GKHtJux56RH4A8TaAEA=
+  /lazy/1.0.11:
+    dev: false
+    engines:
+      node: '>=0.2.0'
+    resolution:
+      integrity: sha1-2qBoIGKCVCwIgojpdcKXwa53tpA=
+  /lodash/4.17.15:
+    dev: false
+    resolution:
+      integrity: sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
+  /lru-cache/4.1.5:
+    dependencies:
+      pseudomap: 1.0.2
+      yallist: 2.1.2
+    dev: false
+    resolution:
+      integrity: sha512-sWZlbEP2OsHNkXrMl5GYk/jKk70MBng6UU4YI/qGDYbgf6YbP4EvmqISbXCoJiRKs+1bSpFHVgQxvJ17F2li5g==
   /media-typer/0.3.0:
     dev: false
     engines:
@@ -357,6 +449,12 @@ packages:
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     resolution:
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+  /murmurhash3js/3.0.1:
+    dev: false
+    engines:
+      node: '>=0.10.0'
+    resolution:
+      integrity: sha1-Ppg+W0fCoG9DpxMXTn5DXKBEuZg=
   /negotiator/0.6.2:
     dev: false
     engines:
@@ -398,6 +496,12 @@ packages:
     dev: false
     resolution:
       integrity: sha1-WDsap3WWHUsROsF9nFC6753Xa9E=
+  /os-tmpdir/1.0.2:
+    dev: false
+    engines:
+      node: '>=0.10.0'
+    resolution:
+      integrity: sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ=
   /parseurl/1.3.3:
     dev: false
     engines:
@@ -414,6 +518,10 @@ packages:
     dev: false
     resolution:
       integrity: sha1-32BBeABfUi8V60SQ5yR6G/qmf4w=
+  /pend/1.2.0:
+    dev: false
+    resolution:
+      integrity: sha1-elfrVQpng/kRUzH89GY9XI4AelA=
   /promise/8.1.0:
     dependencies:
       asap: 2.0.6
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+  /pseudomap/1.0.2:
+    dev: false
+    resolution:
+      integrity: sha1-8FKijacOYYkX7wqKw0wa5aaChrM=
   /qs/6.7.0:
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+  /regenerator-runtime/0.11.1:
+    dev: false
+    resolution:
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+  /rimraf/2.7.1:
+    dependencies:
+      glob: 7.1.6
+    dev: false
+    hasBin: true
+    resolution:
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+  /sprintf-js/1.1.2:
+    dev: false
+    resolution:
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     dev: false
     engines:
       node: '>= 0.6'
     resolution:
       integrity: sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow=
+  /tmp/0.0.33:
+    dependencies:
+      os-tmpdir: 1.0.2
+    dev: false
+    engines:
+      node: '>=0.6.0'
+    resolution:
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+  /traverse/0.6.6:
+    dev: false
+    resolution:
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   /type-is/1.6.18:
     dependencies:
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@@ -539,6 +678,13 @@ packages:
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     resolution:
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+  /useragent/2.3.0:
+    dependencies:
+      lru-cache: 4.1.5
+      tmp: 0.0.33
+    dev: false
+    resolution:
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@@ -559,10 +705,22 @@ packages:
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     resolution:
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+  /yallist/2.1.2:
+    dev: false
+    resolution:
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+  /yauzl/2.10.0:
+    dependencies:
+      buffer-crc32: 0.2.13
+      fd-slicer: 1.1.0
+    dev: false
+    resolution:
+      integrity: sha1-x+sXyT4RLLEIb6bY5R+wZnt5pfk=
 registry: 'https://registry.npmjs.org/'
 shrinkwrapMinorVersion: 9
 shrinkwrapVersion: 3
 specifiers:
   body-parser: ^1.19.0
   express: ^4.17.1
+  express-fingerprint: ^1.1.3
   express-handlebars: ^4.0.3