First commit

.gitignore

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+lib/
+node_modules/
+db.json
+.env

package.json

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+{
+   "name": "osplus_to_mail",
+   "version": "1.0.0",
+   "main": "lib/index.js",
+   "author": "Fabian Stamm <dev@fabianstamm.de>",
+   "license": "MIT",
+   "private": true,
+   "scripts": {
+      "start": "node lib/index.js",
+      "build": "tsc",
+      "watch": "tsc -w",
+      "live": "nodemon -i db.json lib/index.js"
+   },
+   "devDependencies": {
+      "@types/dotenv": "^4.0.3",
+      "@types/lowdb": "^1.0.5",
+      "@types/node": "^10.7.0",
+      "@types/node-fetch": "^2.1.2",
+      "@types/nodemailer": "^4.6.2",
+      "nodemon": "^1.18.3",
+      "typescript": "^3.0.1"
+   },
+   "dependencies": {
+      "dotenv": "^6.0.0",
+      "lowdb": "^1.0.0",
+      "node-fetch": "^2.2.0",
+      "nodemailer": "^4.6.7",
+      "rss-parser": "^3.4.2",
+      "ssl-root-cas": "^1.2.5"
+   }
+}

src/index.ts

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+require('https').globalAgent.options.ca = require('ssl-root-cas/latest').create();
+require('ssl-root-cas').inject();
+process.env.NODE_TLS_REJECT_UNAUTHORIZED = "0";
+
+import * as dotenv from "dotenv";
+dotenv.config();
+import rss from "rss-parser";
+const parser = new rss();
+
+import fetch from "node-fetch";
+import { createHash } from "crypto";
+import low from "lowdb";
+import FileSync from "lowdb/adapters/FileSync";
+
+const adapter = new FileSync<{ test }>("db.json");
+const db = low(adapter);
+db.defaults({});
+import { createTransport } from "nodemailer";
+
+let transporter = createTransport({
+   host: process.env.MAIL_SERVER,
+   port: 587,
+   secure: false, // true for 465, false for other ports
+   auth: {
+      user: process.env.MAIL_USERNAME,
+      pass: process.env.MAIL_PASSWORD
+   }
+});
+
+interface Feed {
+   title: string;
+   language: string;
+   description: string;
+   copyright: string;
+
+   items: FeedItem[];
+}
+
+interface FeedItem {
+   title: string;
+   link: string;
+   content: string,
+   contentSnippet: string;
+   guid: string;
+}
+
+function calculateHash(item: FeedItem) {
+   let hash = createHash("sha512");
+   hash.update(item.content + item.guid + item.title);
+   return hash.digest("hex");
+}
+
+async function check() {
+   try {
+      let data = await fetch(process.env.FEEd).then(res => res.text());
+      console.log("Received Data");
+      let feed: Feed = await parser.parseString(data).catch(console.error);
+      //Check for new entries
+      let items = feed.items.filter(item => {
+         return db.get(calculateHash(item)).value() !== true;
+      })
+      for (let item of items) {
+         await sendFeed(feed, item).catch(console.error)
+      }
+   } catch (error) {
+      console.error(error);
+   }
+}
+
+
+async function sendFeed(feed: Feed, item: FeedItem) {
+   console.log("Sending Mail!")
+   let mailOptions = {
+      from: process.env.MAIL_SENDER,
+      to: process.env.MAIL_RECEIVER,
+      subject: '[OSPLUS_UPDATE] ' + unescape(item.title),
+      text: item.contentSnippet,
+      html: item.content
+   };
+
+   let info = await transporter.sendMail(mailOptions);
+   console.log('Message sent: %s', info.messageId);
+   db.set(calculateHash(item), true).write();
+}
+
+setInterval(() => check(), 1000 * 60 * 60 * 12);
+check();

tsconfig.json

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+{
+  "compilerOptions": {
+    /* Basic Options */
+    "target": "es2017",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
+    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
+    "moduleResolution": "node",
+    // "lib": [],                             /* Specify library files to be included in the compilation. */
+    // "allowJs": true,                       /* Allow javascript files to be compiled. */
+    // "checkJs": true,                       /* Report errors in .js files. */
+    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
+    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
+    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
+    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
+    // "outFile": "./",                       /* Concatenate and emit output to single file. */
+    "outDir": "./lib",                        /* Redirect output structure to the directory. */
+    // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+    // "composite": true,                     /* Enable project compilation */
+    // "removeComments": true,                /* Do not emit comments to output. */
+    // "noEmit": true,                        /* Do not emit outputs. */
+    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
+    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
+    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
+
+    /* Strict Type-Checking Options */
+    "strict": false,                           /* Enable all strict type-checking options. */
+    // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,              /* Enable strict null checks. */
+    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
+    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
+    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
+    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
+
+    /* Additional Checks */
+    // "noUnusedLocals": true,                /* Report errors on unused locals. */
+    // "noUnusedParameters": true,            /* Report errors on unused parameters. */
+    // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
+    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
+
+    /* Module Resolution Options */
+    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
+    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
+    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
+    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
+    // "typeRoots": [],                       /* List of folders to include type definitions from. */
+    // "types": [],                           /* Type declaration files to be included in compilation. */
+    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
+    "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
+
+    /* Source Map Options */
+    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
+    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
+    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
+
+    /* Experimental Options */
+    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
+    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
+  },
+  "include": [
+    "./src"
+  ]
+}