Add models

6 years ago · 0ff2e709be
10 changed files with 789 additions and 3 deletions
--- a/gulpfile.js
+++ b/gulpfile.js
@ -3,7 +3,7 @@ const ts = require("gulp-typescript");

 gulp.task("typescript", function() {
  return gulp
-    .src("./src/*.ts")
+    .src("./src/**/*.ts")
    .pipe(ts())
    .pipe(gulp.dest("dist"));
 });
--- a/package-lock.json
+++ b/package-lock.json
@ -736,26 +736,122 @@
      "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-1.1.3.tgz",
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    },
+    "@types/body-parser": {
+      "version": "1.17.0",
+      "resolved": "https://registry.npmjs.org/@types/body-parser/-/body-parser-1.17.0.tgz",
+      "integrity": "sha512-a2+YeUjPkztKJu5aIF2yArYFQQp8d51wZ7DavSHjFuY1mqVgidGyzEQ41JIVNy82fXj8yPgy2vJmfIywgESW6w==",
+      "requires": {
+        "@types/connect": "*",
+        "@types/node": "*"
+      }
+    },
+    "@types/connect": {
+      "version": "3.4.32",
+      "resolved": "https://registry.npmjs.org/@types/connect/-/connect-3.4.32.tgz",
+      "integrity": "sha512-4r8qa0quOvh7lGD0pre62CAb1oni1OO6ecJLGCezTmhQ8Fz50Arx9RUszryR8KlgK6avuSXvviL6yWyViQABOg==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
+    "@types/cors": {
+      "version": "2.8.4",
+      "resolved": "https://registry.npmjs.org/@types/cors/-/cors-2.8.4.tgz",
+      "integrity": "sha512-ipZjBVsm2tF/n8qFGOuGBkUij9X9ZswVi9G3bx/6dz7POpVa6gVHcj1wsX/LVEn9MMF41fxK/PnZPPoTD1UFPw==",
+      "requires": {
+        "@types/express": "*"
+      }
+    },
+    "@types/crypto-js": {
+      "version": "3.1.43",
+      "resolved": "https://registry.npmjs.org/@types/crypto-js/-/crypto-js-3.1.43.tgz",
+      "integrity": "sha512-EHe/YKctU3IYNBsDmSOPX/7jLHPRlx8WaiDKSY9JCTnJ8XJeM4c0ZJvx+9Gxmr2s2ihI92R+3U/gNL1sq5oRuQ=="
+    },
+    "@types/events": {
+      "version": "1.2.0",
+      "resolved": "http://registry.npmjs.org/@types/events/-/events-1.2.0.tgz",
+      "integrity": "sha512-KEIlhXnIutzKwRbQkGWb/I4HFqBuUykAdHgDED6xqwXJfONCjF5VoE0cXEiurh3XauygxzeDzgtXUqvLkxFzzA=="
+    },
+    "@types/express": {
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+      "resolved": "https://registry.npmjs.org/@types/express/-/express-4.16.0.tgz",
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+      "requires": {
+        "@types/body-parser": "*",
+        "@types/express-serve-static-core": "*",
+        "@types/serve-static": "*"
+      }
+    },
+    "@types/express-serve-static-core": {
+      "version": "4.16.0",
+      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.16.0.tgz",
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+      "requires": {
+        "@types/events": "*",
+        "@types/node": "*",
+        "@types/range-parser": "*"
+      }
+    },
+    "@types/mime": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/@types/mime/-/mime-2.0.0.tgz",
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+    "@types/range-parser": {
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+      "resolved": "https://registry.npmjs.org/@types/range-parser/-/range-parser-1.2.2.tgz",
+      "integrity": "sha512-HtKGu+qG1NPvYe1z7ezLsyIaXYyi8SoAVqWDZgDQ8dLrsZvSzUNCwZyfX33uhWxL/SU0ZDQZ3nwZ0nimt507Kw=="
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+    "@types/serve-static": {
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+      "resolved": "https://registry.npmjs.org/@types/serve-static/-/serve-static-1.13.2.tgz",
+      "integrity": "sha512-/BZ4QRLpH/bNYgZgwhKEh+5AsboDBcUdlBYgzoLX0fpj3Y2gp6EApyOlM3bK53wQS/OE1SrdSYBAbux2D1528Q==",
+      "requires": {
+        "@types/express-serve-static-core": "*",
+        "@types/mime": "*"
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+    "@types/socket.io": {
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+      "resolved": "https://registry.npmjs.org/@types/socket.io/-/socket.io-2.1.0.tgz",
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+    "accepts": {
+      "version": "1.3.5",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
+      "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
+      "requires": {
+        "mime-types": "~2.1.18",
+        "negotiator": "0.6.1"
+      }
+    },
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      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
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+    "after": {
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+      "resolved": "https://registry.npmjs.org/after/-/after-0.8.2.tgz",
+      "integrity": "sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8="
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    "alphanum-sort": {
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      "resolved": "https://registry.npmjs.org/alphanum-sort/-/alphanum-sort-1.0.2.tgz",
@ -866,6 +962,11 @@
      "integrity": "sha1-p5SvDAWrF1KEbudTofIRoFugxE8=",
      "dev": true
    },
+    "array-flatten": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
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      "resolved": "https://registry.npmjs.org/array-slice/-/array-slice-1.1.0.tgz",
@ -883,6 +984,11 @@
      "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.3.2.tgz",
      "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg="
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+    "arraybuffer.slice": {
+      "version": "0.0.7",
+      "resolved": "https://registry.npmjs.org/arraybuffer.slice/-/arraybuffer.slice-0.0.7.tgz",
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@ -1070,6 +1176,11 @@
        "lodash.clone": "^4.5.0"
      }
    },
+    "backo2": {
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+      "resolved": "https://registry.npmjs.org/backo2/-/backo2-1.0.2.tgz",
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@ -1125,17 +1236,35 @@
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+    "base64-arraybuffer": {
+      "version": "0.1.5",
+      "resolved": "https://registry.npmjs.org/base64-arraybuffer/-/base64-arraybuffer-0.1.5.tgz",
+      "integrity": "sha1-c5JncZI7Whl0etZmqlzUv5xunOg="
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      "integrity": "sha1-5tXqjF2tABMEpwsiY4RH9pyy+Ak=",
      "dev": true
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+    "better-assert": {
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+      "resolved": "https://registry.npmjs.org/better-assert/-/better-assert-1.0.2.tgz",
+      "integrity": "sha1-QIZrnhueC1W0gYlDEeaPr/rrxSI=",
+      "requires": {
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    "binary-extensions": {
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@ -1146,11 +1275,48 @@
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@ -1327,6 +1493,11 @@
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      "integrity": "sha1-hZgoeOIbmOHGZCXgPQF0eI9Wnug="
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+      "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg="
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@ -1364,6 +1535,11 @@
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@ -1689,6 +1885,16 @@
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@ -1779,6 +1994,11 @@
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@ -2291,6 +2511,99 @@
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+      "resolved": "http://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.2.0.tgz",
+      "integrity": "sha512-FYiBx7rc/KORMJlgsXysflWx/RIvtqZbyGLlHZvjfmPTPeuD/I8MaW7cfFrj5tRltICJdgwflhfZ3NVVbVLFQA==",
+      "requires": {
+        "component-emitter": "1.2.1",
+        "debug": "~3.1.0",
+        "isarray": "2.0.1"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
+          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "requires": {
+            "ms": "2.0.0"
+          }
+        },
+        "isarray": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
+          "integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4="
+        },
+        "ms": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+        }
+      }
+    },
    "sort-keys": {
      "version": "1.1.2",
      "resolved": "https://registry.npmjs.org/sort-keys/-/sort-keys-1.1.2.tgz",
@ -7722,6 +8342,11 @@
        "is-negated-glob": "^1.0.0"
      }
    },
+    "to-array": {
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/to-array/-/to-array-0.1.4.tgz",
+      "integrity": "sha1-F+bBH3PdTz10zaek/zI46a2b+JA="
+    },
    "to-arraybuffer": {
      "version": "1.0.1",
      "resolved": "https://registry.npmjs.org/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz",
@ -7821,6 +8446,15 @@
        "prelude-ls": "~1.1.2"
      }
    },
+    "type-is": {
+      "version": "1.6.16",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.16.tgz",
+      "integrity": "sha512-HRkVv/5qY2G6I8iab9cI7v1bOIdhm94dVjQCPFElW9W+3GeDOSHmy2EBYe4VTApuzolPcmgFTN3ftVJRKR2J9Q==",
+      "requires": {
+        "media-typer": "0.3.0",
+        "mime-types": "~2.1.18"
+      }
+    },
    "typedarray": {
      "version": "0.0.6",
      "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
@ -7832,6 +8466,11 @@
      "integrity": "sha512-tDMYfVtvpb96msS1lDX9MEdHrW4yOuZ4Kdc4Him9oU796XldPYF/t2+uKoX0BBa0hXXwDlqYQbXY5Rzjzc5hBA==",
      "dev": true
    },
+    "ultron": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
+      "integrity": "sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og=="
+    },
    "unc-path-regex": {
      "version": "0.1.2",
      "resolved": "https://registry.npmjs.org/unc-path-regex/-/unc-path-regex-0.1.2.tgz",
@ -7918,6 +8557,11 @@
      "integrity": "sha1-1ZpKdUJ0R9mqbJHnAmP40mpLEEs=",
      "dev": true
    },
+    "unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
+    },
    "unquote": {
      "version": "1.1.1",
      "resolved": "https://registry.npmjs.org/unquote/-/unquote-1.1.1.tgz",
@ -8018,6 +8662,11 @@
        "object.getownpropertydescriptors": "^2.0.3"
      }
    },
+    "utils-merge": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
+      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+    },
    "v8-compile-cache": {
      "version": "2.0.2",
      "resolved": "https://registry.npmjs.org/v8-compile-cache/-/v8-compile-cache-2.0.2.tgz",
@ -8037,6 +8686,11 @@
      "resolved": "https://registry.npmjs.org/value-or-function/-/value-or-function-3.0.0.tgz",
      "integrity": "sha1-HCQ6ULWVwb5Up1S/7OhWO5/42BM="
    },
+    "vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+    },
    "vendors": {
      "version": "1.0.2",
      "resolved": "https://registry.npmjs.org/vendors/-/vendors-1.0.2.tgz",
@ -8229,6 +8883,11 @@
        "async-limiter": "~1.0.0"
      }
    },
+    "xmlhttprequest-ssl": {
+      "version": "1.5.5",
+      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz",
+      "integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4="
+    },
    "xtend": {
      "version": "4.0.1",
      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
@ -8239,6 +8898,11 @@
      "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.0.3.tgz",
      "integrity": "sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A=="
    },
+    "yeast": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
+      "integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk="
+    },
    "yn": {
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/yn/-/yn-2.0.0.tgz",
--- a/package.json
+++ b/package.json
@ -9,9 +9,19 @@
  "author": "@garritfra",
  "license": "ISC",
  "dependencies": {
+    "@types/body-parser": "^1.17.0",
+    "@types/cors": "^2.8.4",
+    "@types/crypto-js": "^3.1.43",
+    "@types/express": "^4.16.0",
+    "@types/socket.io": "^2.1.0",
+    "body-parser": "^1.18.3",
+    "cors": "^2.8.5",
+    "crypto-js": "^3.1.9-1",
+    "express": "^4.16.4",
    "gulp-typescript": "^5.0.0-alpha.3",
    "parcel": "^1.10.3",
    "parcel-bundler": "^1.10.3",
+    "socket.io": "^2.1.1",
    "ts-node": "^7.0.1"
  },
  "devDependencies": {
--- a/src/daemon/app.ts
+++ b/src/daemon/app.ts
@ -1,6 +1,11 @@
 import * as net from "net";
+import Blockchain from "../model/Blockchain";
+
+const blockchain = new Blockchain();
+
 const server = net.createServer(c => {
  //'connection' listener
+
  console.log("client connected");

  c.on("end", () => {
--- a/src/model/Block.ts
+++ b/src/model/Block.ts
@ -0,0 +1,58 @@
+import { SHA256 } from "crypto-js";
+import Transaction from "./Transaction";
+
+export default class Block {
+  id: any;
+  timestamp: Date;
+  data: any[];
+  previousHash: any;
+  hash: any;
+  /**
+   * Construct a Block object
+   * @constructor
+   * @param {number} id
+   * @param {string} previousHash
+   */
+  constructor(id, previousHash) {
+    this.id = id;
+    this.timestamp = new Date();
+    this.data = [];
+    this.previousHash = previousHash;
+    this.hash = this.calculateHash();
+  }
+
+  /**
+   * Concatenates the timestamp, previous hash and transaction data of a block and
+   * calculates the according SHA256 Hash
+   * @returns hash
+   */
+  calculateHash() {
+    let hashStr = this.timestamp + this.previousHash + this.data;
+    let hash = SHA256(hashStr).toString();
+    return hash;
+  }
+
+  /**
+   * Creates the first block in a blockchain.
+   * It has a stub transaction with an amount of 0 coins.
+   *
+   * Called automatically upon blockchain creation
+   *
+   * @returns genesisBlock
+   */
+  static createGenesisBlock() {
+    let date = new Date();
+    let genesisTransaction = new Transaction("Genesis", "Genesis", 0);
+    let genesisBlock = new Block(0, "0");
+    genesisBlock.addTransaction(genesisTransaction);
+    return genesisBlock;
+  }
+
+  /**
+   * Pushes a transaction to the Block
+   * @param {Transaction} transaction
+   */
+  addTransaction(transaction) {
+    this.data.push(transaction);
+  }
+}
--- a/src/model/Blockchain.ts
+++ b/src/model/Blockchain.ts
@ -0,0 +1,21 @@
+import Block from "./Block";
+
+export default class Blockchain {
+  blocks: any[];
+  genesisBlock: Block;
+  constructor() {
+    this.blocks = [];
+    this.genesisBlock = Block.createGenesisBlock();
+
+    this.addBlock(this.genesisBlock);
+  }
+
+  addBlock(block) {
+    this.blocks.push(block);
+  }
+
+  getLastBlock() {
+    let lastBlock = this.blocks[this.blocks.length - 1];
+    return lastBlock;
+  }
+}
--- a/src/model/Data.ts
+++ b/src/model/Data.ts
@ -0,0 +1,11 @@
+import { RequestType } from "./RequestType";
+
+export default class Data {
+  requestType: RequestType;
+  data: any;
+
+  constructor(requestType: RequestType, data: any) {
+    this.requestType = requestType;
+    this.data = data;
+  }
+}
--- a/src/model/RequestType.ts
+++ b/src/model/RequestType.ts
@ -0,0 +1,4 @@
+export enum RequestType {
+  CREATE_BLOCK,
+  GET_BLOCKS
+}
--- a/src/model/Transaction.ts
+++ b/src/model/Transaction.ts
@ -0,0 +1,11 @@
+export default class Transaction {
+  sender: any;
+  receiver: any;
+  amount: any;
+
+  constructor(sender, receiver, amount) {
+    this.sender = sender;
+    this.receiver = receiver;
+    this.amount = amount;
+  }
+}
--- a/tsconfig.json
+++ b/tsconfig.json
@ -2,7 +2,9 @@
  "compilerOptions": {
    "module": "system",
    "sourceMap": true,
-    "noImplicitAny": true
+    "noImplicitAny": true,
+    "rootDir": "src",
+    "moduleResolution": "node"
  },
-  "files": ["./src/app.ts"]
+  "include": ["** /*"]
 }