Add reddit service provider

src/serviceproviders.js

@@ -17,6 +17,7 @@ const list = [
   'dns',
   'xmpp',
   'twitter',
+  'reddit',
   'hackernews',
   'lobsters',
   'devto',
@@ -26,6 +27,7 @@ const data = {
   dns: require('./serviceproviders/dns'),
   xmpp: require('./serviceproviders/xmpp'),
   twitter: require('./serviceproviders/twitter'),
+  reddit: require('./serviceproviders/reddit'),
   hackernews: require('./serviceproviders/hackernews'),
   lobsters: require('./serviceproviders/lobsters'),
   devto: require('./serviceproviders/devto'),

src/serviceproviders/reddit.js

@@ -0,0 +1,72 @@
+/*
+Copyright 2020 Yarmo Mackenbach
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+const reURI = /^https:\/\/(?:www\.)?reddit\.com\/user\/(.*)\/comments\/(.*)\/(.*)\/?/
+
+const processURI = (uri, opts) => {
+  if (!opts) { opts = {} }
+  const match = uri.match(reURI)
+
+  return {
+    serviceprovider: {
+      type: 'web',
+      name: 'reddit'
+    },
+    profile: {
+      display: match[1],
+      uri: `https://www.reddit.com/user/${match[1]}`
+    },
+    proof: {
+      uri: uri,
+      fetch: `https://www.reddit.com/user/${match[1]}/comments/${match[2]}.json`,
+      useProxy: true,
+      format: 'json'
+    },
+    claim: {
+      fingerprint: null,
+      format: 'message',
+      path: ['data', 'children', 'data', 'selftext'],
+      relation: 'contains'
+    },
+    qr: null
+  }
+}
+
+const tests = [
+  {
+    uri: 'https://www.reddit.com/user/Alice/comments/123456/post',
+    shouldMatch: true
+  },
+  {
+    uri: 'https://www.reddit.com/user/Alice/comments/123456/post/',
+    shouldMatch: true
+  },
+  {
+    uri: 'https://reddit.com/user/Alice/comments/123456/post',
+    shouldMatch: true
+  },
+  {
+    uri: 'https://reddit.com/user/Alice/comments/123456/post/',
+    shouldMatch: true
+  },
+  {
+    uri: 'https://domain.org/user/Alice/comments/123456/post',
+    shouldMatch: false
+  }
+]
+
+exports.reURI = reURI
+exports.processURI = processURI
+exports.tests = tests