🤪 Various improvements

(needs some testing)

.gitignore

@@ -1,10 +1,20 @@
+# Project specific files
+admins.conf
+clients.conf
+*list.conf
+config.properties
+/*.db
+/application.properties
+
 # Created by https://www.gitignore.io
 
 *.log
+*.log.*.gz
 
 ### Gradle ###
 .gradle
 build/
+classes/
 
 # Ignore Gradle GUI config
 gradle-app.setting
@@ -65,7 +75,6 @@ crashlytics-build.properties
 ### Eclipse ###
 *.pydevproject
 .metadata
-.gradle
 bin/
 tmp/
 *.tmp

.travis.yml

@@ -0,0 +1,3 @@
+language: java
+jdk:
+  - oraclejdk8

LICENSE

@@ -0,0 +1,201 @@
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+                           Version 2.0, January 2004
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+
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+   limitations under the License.

README.md

@@ -0,0 +1,41 @@
+Jabit Server
+============
+
+This is the server node using the Jabit library. You can run it by calling
+```
+java -jar jabit-server.jar
+```
+The interface will be available on port 9000, Bitmessage as usual on Port 8444.
+
+There are still a few problems with the interface (the idea is to allow collecting
+and displaying broadcasts).
+
+On first startup it will create a config file (allowing you to configure the
+Bitmessage port), a whitelist, a blacklist and a shortlist. If the whitelist isn't
+empty, the blacklist will be irrelevant. You can disable the feature by simply
+adding a valid Bitmessage address to the whitelist. For shortlisted addresses, only
+the last five broadcasts are displayed and stored (useful e.g. for time services or
+Q's Aktivlist).
+
+Building / Development
+----------------------
+
+You can build the jar file with
+```
+./gradlew build
+```
+As there is a problem with the build order, you'll need to do this twice.
+
+To deploy on a Ubuntu server (might work on other Linuxes as well), create a file
+`/etc/init/jabit.conf` with the following contents:
+```
+chdir /srv/jabit
+
+exec su -s /bin/sh -c 'exec "$0" "$@"' jabit -- /usr/bin/java -jar jabit-server.jar --server.port=9000 > /dev/null
+
+start on runlevel [2345]
+stop on runlevel [^2345]
+
+```
+there must be a user jabit and a folder `/srv/jabit` where this user has write
+permission containing `jabit-server.jar`.

build.gradle

@@ -1,34 +1,41 @@
 buildscript {
     ext {
-        springBootVersion = '1.2.6.RELEASE'
+        kotlin_version = '1.2.41'
+        springBootVersion = '2.0.0.M7'
     }
     repositories {
         mavenCentral()
+        maven { url "https://repo.spring.io/milestone" }
+        jcenter()
     }
     dependencies {
-        classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}") 
-        classpath("io.spring.gradle:dependency-management-plugin:0.5.2.RELEASE")
+        classpath("org.springframework.boot:spring-boot-gradle-plugin:$springBootVersion")
+        classpath('se.transmode.gradle:gradle-docker:1.2')
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version")
+        classpath("org.jetbrains.kotlin:kotlin-allopen:$kotlin_version")
+        classpath('com.github.ben-manes:gradle-versions-plugin:0.17.0')
     }
 }
 
-apply plugin: 'java'
-apply plugin: 'eclipse-wtp'
+group = 'dissem'
+
+apply plugin: 'kotlin'
+apply plugin: 'kotlin-spring'
+apply plugin: 'eclipse'
 apply plugin: 'idea'
-apply plugin: 'spring-boot' 
-apply plugin: 'io.spring.dependency-management' 
-apply plugin: 'war'
+apply plugin: 'org.springframework.boot'
+apply plugin: 'io.spring.dependency-management'
+apply plugin: 'docker'
+apply plugin: 'com.github.ben-manes.versions'
 
-
-war {
-    baseName = 'server'
-    version = '0.0.1-SNAPSHOT'
-}
 sourceCompatibility = 1.8
 targetCompatibility = 1.8
 
 repositories {
     jcenter()
     mavenCentral()
+    maven { url "https://repo.spring.io/snapshot" }
+    maven { url "https://repo.spring.io/milestone" }
     maven { url 'https://oss.sonatype.org/content/repositories/snapshots/' }
 }
 
@@ -36,30 +43,73 @@ configurations {
     providedRuntime
 }
 
+ext.jabitVersion = 'feature-refactoring-SNAPSHOT'
 dependencies {
     compile("org.springframework.boot:spring-boot-starter-hateoas")
     compile("org.springframework.boot:spring-boot-starter-jersey")
     compile("org.springframework.boot:spring-boot-starter-web")
+    compile("io.springfox:springfox-swagger2:2.7.0")
+    compile("io.springfox:springfox-swagger-ui:2.7.0")
+    compile("com.fasterxml.jackson.module:jackson-module-kotlin:")
 
-    compile 'ch.dissem.jabit:jabit-domain:0.2.1-SNAPSHOT'
-    compile 'ch.dissem.jabit:jabit-networking:0.2.1-SNAPSHOT'
-    compile 'ch.dissem.jabit:jabit-repositories:0.2.1-SNAPSHOT'
-    compile 'ch.dissem.jabit:jabit-security-bouncy:0.2.1-SNAPSHOT'
+    compile("ch.dissem.jabit:jabit-core:$jabitVersion")
+    compile("ch.dissem.jabit:jabit-networking:$jabitVersion")
+    compile("ch.dissem.jabit:jabit-repositories:$jabitVersion")
+    compile("ch.dissem.jabit:jabit-cryptography-bouncy:$jabitVersion")
+    compile("ch.dissem.jabit:jabit-extensions:$jabitVersion")
 
-    compile 'com.h2database:h2:1.4.187'
+    compile('com.h2database:h2:1.4.194')
+
+    compile('com.google.zxing:core:3.3.1')
 
     providedRuntime("org.springframework.boot:spring-boot-starter-tomcat")
-    testCompile("org.springframework.boot:spring-boot-starter-test") 
+    testCompile("org.springframework.boot:spring-boot-starter-test")
+    compile("org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version")
+    compile("org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version")
+    compile("org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version")
+    compile("org.jetbrains.kotlin:kotlin-reflect:$kotlin_version")
 }
 
 
 eclipse {
     classpath {
-         containers.remove('org.eclipse.jdt.launching.JRE_CONTAINER')
-         containers 'org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8'
+        containers.remove('org.eclipse.jdt.launching.JRE_CONTAINER')
+        containers 'org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8'
+    }
+}
+
+task buildDocker(type: Docker, dependsOn: build) {
+    push = true
+    applicationName = 'jabit-server'
+    dockerfile = file('src/main/docker/Dockerfile')
+    doFirst {
+        copy {
+            from jar
+            into stageDir
+        }
+    }
+}
+
+jar {
+    baseName = 'jabit-server'
+}
+
+//frontend:build will be run before processResources
+processResources {
+    dependsOn('frontend:build')
+    from('frontend/dist') {
+        //Public is a default supported Spring Boot resources directory.
+        into 'public'
     }
 }
 
 task wrapper(type: Wrapper) {
     gradleVersion = '2.3'
 }
+
+compileKotlin {
+    kotlinOptions.jvmTarget = "1.8"
+}
+compileTestKotlin {
+    kotlinOptions.jvmTarget = "1.8"
+}

frontend/.angular-cli.json

@@ -0,0 +1,57 @@
+{
+  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
+  "project": {
+    "name": "jabit-server"
+  },
+  "apps": [
+    {
+      "root": "src",
+      "outDir": "dist",
+      "assets": [
+        "assets",
+        "favicon.ico"
+      ],
+      "index": "index.html",
+      "main": "main.ts",
+      "polyfills": "polyfills.ts",
+      "test": "test.ts",
+      "tsconfig": "tsconfig.app.json",
+      "testTsconfig": "tsconfig.spec.json",
+      "prefix": "app",
+      "styles": [
+        "styles.css"
+      ],
+      "scripts": [],
+      "environmentSource": "environments/environment.ts",
+      "environments": {
+        "dev": "environments/environment.ts",
+        "prod": "environments/environment.prod.ts"
+      }
+    }
+  ],
+  "e2e": {
+    "protractor": {
+      "config": "./protractor.conf.js"
+    }
+  },
+  "lint": [
+    {
+      "project": "src/tsconfig.app.json"
+    },
+    {
+      "project": "src/tsconfig.spec.json"
+    },
+    {
+      "project": "e2e/tsconfig.e2e.json"
+    }
+  ],
+  "test": {
+    "karma": {
+      "config": "./karma.conf.js"
+    }
+  },
+  "defaults": {
+    "styleExt": "css",
+    "component": {}
+  }
+}

frontend/.editorconfig

@@ -0,0 +1,13 @@
+# Editor configuration, see http://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+max_line_length = off
+trim_trailing_whitespace = false

frontend/.gitignore

@@ -0,0 +1,42 @@
+# See http://help.github.com/ignore-files/ for more about ignoring files.
+
+# compiled output
+/dist
+/tmp
+/out-tsc
+
+# dependencies
+/node_modules
+
+# IDEs and editors
+/.idea
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# IDE - VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+# misc
+/.sass-cache
+/connect.lock
+/coverage
+/libpeerconnection.log
+npm-debug.log
+testem.log
+/typings
+
+# e2e
+/e2e/*.js
+/e2e/*.map
+
+# System Files
+.DS_Store
+Thumbs.db

frontend/README.md

@@ -0,0 +1,28 @@
+# JabitServer
+
+This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 1.0.3.
+
+## Development server
+
+Run `ng serve` for a dev server. Navigate to `http://localhost:4200/`. The app will automatically reload if you change any of the source files.
+
+## Code scaffolding
+
+Run `ng generate component component-name` to generate a new component. You can also use `ng generate directive|pipe|service|class|module`.
+
+## Build
+
+Run `ng build` to build the project. The build artifacts will be stored in the `dist/` directory. Use the `-prod` flag for a production build.
+
+## Running unit tests
+
+Run `ng test` to execute the unit tests via [Karma](https://karma-runner.github.io).
+
+## Running end-to-end tests
+
+Run `ng e2e` to execute the end-to-end tests via [Protractor](http://www.protractortest.org/).
+Before running the tests make sure you are serving the app via `ng serve`.
+
+## Further help
+
+To get more help on the Angular CLI use `ng help` or go check out the [Angular CLI README](https://github.com/angular/angular-cli/blob/master/README.md).

frontend/build.gradle

@@ -0,0 +1,16 @@
+plugins {
+  id "com.moowork.node" version "1.1.1"
+}
+
+node {
+  // Version of node to use.
+  version = '7.10.0'
+
+  // Enabled the automatic download.
+  download = true
+}
+
+// runs "gulp build" as part of your gradle build
+task build {
+  dependsOn npm_run_build
+}

frontend/e2e/app.e2e-spec.ts

@@ -0,0 +1,14 @@
+import { JabitServerPage } from './app.po';
+
+describe('jabit-server App', () => {
+  let page: JabitServerPage;
+
+  beforeEach(() => {
+    page = new JabitServerPage();
+  });
+
+  it('should display message saying app works', () => {
+    page.navigateTo();
+    expect(page.getParagraphText()).toEqual('app works!');
+  });
+});

frontend/e2e/app.po.ts

@@ -0,0 +1,11 @@
+import { browser, by, element } from 'protractor';
+
+export class JabitServerPage {
+  navigateTo() {
+    return browser.get('/');
+  }
+
+  getParagraphText() {
+    return element(by.css('app-root h1')).getText();
+  }
+}

frontend/e2e/tsconfig.e2e.json

@@ -0,0 +1,12 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../out-tsc/e2e",
+    "module": "commonjs",
+    "target": "es5",
+    "types": [
+      "jasmine",
+      "node"
+    ]
+  }
+}

frontend/karma.conf.js

@@ -0,0 +1,44 @@
+// Karma configuration file, see link for more information
+// https://karma-runner.github.io/0.13/config/configuration-file.html
+
+module.exports = function (config) {
+  config.set({
+    basePath: '',
+    frameworks: ['jasmine', '@angular/cli'],
+    plugins: [
+      require('karma-jasmine'),
+      require('karma-chrome-launcher'),
+      require('karma-jasmine-html-reporter'),
+      require('karma-coverage-istanbul-reporter'),
+      require('@angular/cli/plugins/karma')
+    ],
+    client:{
+      clearContext: false // leave Jasmine Spec Runner output visible in browser
+    },
+    files: [
+      { pattern: './src/test.ts', watched: false }
+    ],
+    preprocessors: {
+      './src/test.ts': ['@angular/cli']
+    },
+    mime: {
+      'text/x-typescript': ['ts','tsx']
+    },
+    coverageIstanbulReporter: {
+      reports: [ 'html', 'lcovonly' ],
+      fixWebpackSourcePaths: true
+    },
+    angularCli: {
+      environment: 'dev'
+    },
+    reporters: config.angularCli && config.angularCli.codeCoverage
+              ? ['progress', 'coverage-istanbul']
+              : ['progress', 'kjhtml'],
+    port: 9876,
+    colors: true,
+    logLevel: config.LOG_INFO,
+    autoWatch: true,
+    browsers: ['Chrome'],
+    singleRun: false
+  });
+};

frontend/package.json

@@ -0,0 +1,53 @@
+{
+  "name": "jabit-server",
+  "version": "0.0.0",
+  "license": "MIT",
+  "scripts": {
+    "ng": "ng",
+    "start": "ng serve",
+    "build": "ng build",
+    "test": "ng test",
+    "lint": "ng lint",
+    "e2e": "ng e2e"
+  },
+  "private": true,
+  "dependencies": {
+    "@angular/animations": "^5.1.0",
+    "@angular/cdk": "^5.0.0",
+    "@angular/common": "^5.1.0",
+    "@angular/compiler": "^5.1.0",
+    "@angular/core": "^5.1.0",
+    "@angular/flex-layout": "^2.0.0-beta.10-4905443",
+    "@angular/forms": "^5.1.0",
+    "@angular/http": "^5.1.0",
+    "@angular/material": "^5.0.0",
+    "@angular/platform-browser": "^5.1.0",
+    "@angular/platform-browser-dynamic": "^5.1.0",
+    "@angular/router": "^5.1.0",
+    "ajv": "^5.5.1",
+    "codelyzer": "^4.0.1",
+    "core-js": "^2.4.1",
+    "rxjs": "^5.5.4",
+    "tslint": "^5.8.0",
+    "zone.js": "^0.8.4"
+  },
+  "devDependencies": {
+    "@angular/cli": "^1.5.5",
+    "@angular/compiler-cli": "^5.1.0",
+    "@types/jasmine": "2.5.38",
+    "@types/node": "~6.0.60",
+    "codelyzer": "~2.0.0",
+    "jasmine-core": "~2.5.2",
+    "jasmine-spec-reporter": "~3.2.0",
+    "karma": "~1.4.1",
+    "karma-chrome-launcher": "~2.1.1",
+    "karma-cli": "~1.0.1",
+    "karma-coverage-istanbul-reporter": "^0.2.0",
+    "karma-jasmine": "~1.1.0",
+    "karma-jasmine-html-reporter": "^0.2.2",
+    "protractor": "~5.1.0",
+    "ts-node": "~2.0.0",
+    "tslint": "~4.5.0",
+    "typescript": "~2.5.0"
+  }
+}

frontend/protractor.conf.js

@@ -0,0 +1,30 @@
+// Protractor configuration file, see link for more information
+// https://github.com/angular/protractor/blob/master/lib/config.ts
+
+const { SpecReporter } = require('jasmine-spec-reporter');
+
+exports.config = {
+  allScriptsTimeout: 11000,
+  specs: [
+    './e2e/**/*.e2e-spec.ts'
+  ],
+  capabilities: {
+    'browserName': 'chrome'
+  },
+  directConnect: true,
+  baseUrl: 'http://localhost:4200/',
+  framework: 'jasmine',
+  jasmineNodeOpts: {
+    showColors: true,
+    defaultTimeoutInterval: 30000,
+    print: function() {}
+  },
+  beforeLaunch: function() {
+    require('ts-node').register({
+      project: 'e2e/tsconfig.e2e.json'
+    });
+  },
+  onPrepare() {
+    jasmine.getEnv().addReporter(new SpecReporter({ spec: { displayStacktrace: true } }));
+  }
+};

frontend/src/app/app.component.html

@@ -0,0 +1,10 @@
+<mat-toolbar color="primary" class="mat-elevation-z6">
+  <div fxLayout fxLayoutAlign="space-between center" fxFlex>
+    {{title}}
+    <a mat-button title="Go to server status page" class="right"
+       routerLink="/status">
+      Status
+    </a>
+  </div>
+</mat-toolbar>
+<router-outlet></router-outlet>

frontend/src/app/app.component.spec.ts

@@ -0,0 +1,32 @@
+import { TestBed, async } from '@angular/core/testing';
+
+import { AppComponent } from './app.component';
+
+describe('AppComponent', () => {
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [
+        AppComponent
+      ],
+    }).compileComponents();
+  }));
+
+  it('should create the app', async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.debugElement.componentInstance;
+    expect(app).toBeTruthy();
+  }));
+
+  it(`should have as title 'app works!'`, async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.debugElement.componentInstance;
+    expect(app.title).toEqual('app works!');
+  }));
+
+  it('should render title in a h1 tag', async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    fixture.detectChanges();
+    const compiled = fixture.debugElement.nativeElement;
+    expect(compiled.querySelector('h1').textContent).toContain('app works!');
+  }));
+});

frontend/src/app/app.component.ts

@@ -0,0 +1,10 @@
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'app-root',
+  templateUrl: './app.component.html',
+  styleUrls: ['./app.component.css']
+})
+export class AppComponent {
+  title = 'Jabit Bitmessage Server';
+}

frontend/src/app/app.module.ts

@@ -0,0 +1,38 @@
+import {BrowserModule} from '@angular/platform-browser';
+import {NgModule} from '@angular/core';
+
+import {AppComponent} from './app.component';
+import {MatButtonModule, MatCardModule, MatExpansionModule, MatToolbarModule} from '@angular/material';
+import {RouterModule} from "@angular/router";
+import {StatusComponent} from './status/status.component';
+import {APP_ROUTES} from "./app.routes";
+import {HttpClientModule} from "@angular/common/http";
+import {BroadcastComponent} from './broadcast/broadcast.component';
+import {BrowserAnimationsModule} from "@angular/platform-browser/animations";
+import {FlexLayoutModule} from "@angular/flex-layout";
+import {BackendService} from "./backend.service";
+
+@NgModule({
+  declarations: [
+    AppComponent,
+    StatusComponent,
+    BroadcastComponent
+  ],
+  imports: [
+    BrowserModule,
+    BrowserAnimationsModule,
+    HttpClientModule,
+    RouterModule.forRoot(APP_ROUTES),
+    FlexLayoutModule,
+    MatToolbarModule,
+    MatCardModule,
+    MatExpansionModule,
+    MatButtonModule
+  ],
+  providers: [
+    BackendService
+  ],
+  bootstrap: [AppComponent]
+})
+export class AppModule {
+}

frontend/src/app/app.routes.ts

@@ -0,0 +1,15 @@
+import {Route} from "@angular/router";
+import {StatusComponent} from "./status/status.component";
+import {BroadcastComponent} from "./broadcast/broadcast.component";
+
+export const APP_ROUTES: Route[] = [
+  {
+    path: 'status',
+    component: StatusComponent
+  },
+  {
+    path: 'broadcasts/:address',
+    component: BroadcastComponent
+  },
+  {path: '', redirectTo: 'status', pathMatch: 'full'}
+];

frontend/src/app/backend.service.spec.ts

@@ -0,0 +1,15 @@
+import { TestBed, inject } from '@angular/core/testing';
+
+import { BackendService } from './backend.service';
+
+describe('BackendService', () => {
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      providers: [BackendService]
+    });
+  });
+
+  it('should be created', inject([BackendService], (service: BackendService) => {
+    expect(service).toBeTruthy();
+  }));
+});

frontend/src/app/backend.service.ts

@@ -0,0 +1,38 @@
+import {Injectable} from '@angular/core';
+import {Observable} from "rxjs/Observable";
+import {HttpClient} from "@angular/common/http";
+import {map} from "rxjs/operators";
+
+@Injectable()
+export class BackendService {
+
+  private baseUrl = "http://localhost:8080";
+
+  constructor(private http: HttpClient) {
+  }
+
+  getStatus(): Observable<string> {
+    return this.http.get(`${this.baseUrl}/api/v1/status`).pipe(map(data => JSON.stringify(data, null, 2)));
+  }
+
+  getBroadcasts(address: string): Observable<Broadcasts> {
+    return this.http.get<Broadcasts>(`${this.baseUrl}/api/v1/read/${address}`)
+  }
+}
+
+export interface Sender {
+  address: String;
+  alias: String;
+}
+
+export interface Message {
+  id: any;
+  received: number;
+  subject: string;
+  body: string;
+}
+
+export interface Broadcasts {
+  sender: Sender;
+  messages: Message[]
+}

frontend/src/app/broadcast/broadcast.component.html

@@ -0,0 +1,16 @@
+<div *ngIf="broadcasts$ | async as broadcasts">
+  <h1>{{broadcasts.sender.alias || broadcasts.sender.address}}</h1>
+  <mat-expansion-panel *ngFor="let message of broadcasts.messages">
+    <mat-expansion-panel-header>
+      <mat-panel-title>
+        {{message.subject}}
+      </mat-panel-title>
+      <mat-panel-description>
+        {{message.received * 1000 | date:'medium'}}
+      </mat-panel-description>
+    </mat-expansion-panel-header>
+
+    <pre><code>{{message.body}}</code></pre>
+
+  </mat-expansion-panel>
+</div>

frontend/src/app/broadcast/broadcast.component.scss

@@ -0,0 +1,4 @@
+:host {
+  margin: 2em;
+  display: block;
+}

frontend/src/app/broadcast/broadcast.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { BroadcastComponent } from './broadcast.component';
+
+describe('BroadcastComponent', () => {
+  let component: BroadcastComponent;
+  let fixture: ComponentFixture<BroadcastComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ BroadcastComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(BroadcastComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

frontend/src/app/broadcast/broadcast.component.ts

@@ -0,0 +1,25 @@
+import {Component, OnInit} from '@angular/core';
+import {ActivatedRoute} from "@angular/router";
+import {Observable} from "rxjs/Observable";
+import {BackendService, Broadcasts} from "../backend.service";
+import {map, switchMap} from "rxjs/operators";
+
+@Component({
+  selector: 'app-broadcast',
+  templateUrl: './broadcast.component.html',
+  styleUrls: ['./broadcast.component.scss']
+})
+export class BroadcastComponent implements OnInit {
+
+  broadcasts$: Observable<Broadcasts>;
+
+  constructor(private route: ActivatedRoute, private backend: BackendService) {
+  }
+
+  ngOnInit() {
+    this.broadcasts$ = this.route.params
+      .pipe(map(p => p['address']))
+      .pipe(switchMap(address => this.backend.getBroadcasts(address)));
+  }
+
+}

frontend/src/app/status/status.component.html

@@ -0,0 +1,3 @@
+<mat-card>
+  <pre><code>{{status$ | async}}</code></pre>
+</mat-card>

frontend/src/app/status/status.component.scss

@@ -0,0 +1,4 @@
+:host {
+  margin: 2em;
+  display: block;
+}

frontend/src/app/status/status.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { StatusComponent } from './status.component';
+
+describe('StatusComponent', () => {
+  let component: StatusComponent;
+  let fixture: ComponentFixture<StatusComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ StatusComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(StatusComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

frontend/src/app/status/status.component.ts

@@ -0,0 +1,18 @@
+import {Component} from '@angular/core';
+import {BackendService} from "../backend.service";
+import {Observable} from "rxjs/Observable";
+
+@Component({
+  selector: 'app-status',
+  templateUrl: './status.component.html',
+  styleUrls: ['./status.component.scss']
+})
+export class StatusComponent {
+
+  status$: Observable<string>;
+
+  constructor(backend: BackendService) {
+    this.status$ = backend.getStatus();
+  }
+
+}

frontend/src/environments/environment.prod.ts

@@ -0,0 +1,3 @@
+export const environment = {
+  production: true
+};

frontend/src/environments/environment.ts

@@ -0,0 +1,8 @@
+// The file contents for the current environment will overwrite these during build.
+// The build system defaults to the dev environment which uses `environment.ts`, but if you do
+// `ng build --env=prod` then `environment.prod.ts` will be used instead.
+// The list of which env maps to which file can be found in `.angular-cli.json`.
+
+export const environment = {
+  production: false
+};

frontend/src/index.html

@@ -0,0 +1,16 @@
+<!doctype html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>JabitServer</title>
+  <base href="/">
+
+  <link href="https://fonts.googleapis.com/css?family=Roboto:300,400,500" rel="stylesheet">
+  <link href="http://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <link rel="icon" type="image/x-icon" href="favicon.ico">
+</head>
+<body class="mat-typography">
+  <app-root>Loading...</app-root>
+</body>
+</html>

frontend/src/main.ts

@@ -0,0 +1,11 @@
+import { enableProdMode } from '@angular/core';
+import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
+
+import { AppModule } from './app/app.module';
+import { environment } from './environments/environment';
+
+if (environment.production) {
+  enableProdMode();
+}
+
+platformBrowserDynamic().bootstrapModule(AppModule);

frontend/src/polyfills.ts

@@ -0,0 +1,72 @@
+/**
+ * This file includes polyfills needed by Angular and is loaded before the app.
+ * You can add your own extra polyfills to this file.
+ *
+ * This file is divided into 2 sections:
+ *   1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
+ *   2. Application imports. Files imported after ZoneJS that should be loaded before your main
+ *      file.
+ *
+ * The current setup is for so-called "evergreen" browsers; the last versions of browsers that
+ * automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
+ * Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.
+ *
+ * Learn more in https://angular.io/docs/ts/latest/guide/browser-support.html
+ */
+
+/***************************************************************************************************
+ * BROWSER POLYFILLS
+ */
+
+/** IE9, IE10 and IE11 requires all of the following polyfills. **/
+// import 'core-js/es6/symbol';
+// import 'core-js/es6/object';
+// import 'core-js/es6/function';
+// import 'core-js/es6/parse-int';
+// import 'core-js/es6/parse-float';
+// import 'core-js/es6/number';
+// import 'core-js/es6/math';
+// import 'core-js/es6/string';
+// import 'core-js/es6/date';
+// import 'core-js/es6/array';
+// import 'core-js/es6/regexp';
+// import 'core-js/es6/map';
+// import 'core-js/es6/set';
+
+/** IE10 and IE11 requires the following for NgClass support on SVG elements */
+// import 'classlist.js';  // Run `npm install --save classlist.js`.
+
+/** IE10 and IE11 requires the following to support `@angular/animation`. */
+// import 'web-animations-js';  // Run `npm install --save web-animations-js`.
+
+
+/** Evergreen browsers require these. **/
+import 'core-js/es6/reflect';
+import 'core-js/es7/reflect';
+
+
+/** ALL Firefox browsers require the following to support `@angular/animation`. **/
+// import 'web-animations-js';  // Run `npm install --save web-animations-js`.
+
+
+
+/***************************************************************************************************
+ * Zone JS is required by Angular itself.
+ */
+import 'zone.js/dist/zone';  // Included with Angular CLI.
+
+
+
+/***************************************************************************************************
+ * APPLICATION IMPORTS
+ */
+
+/**
+ * Date, currency, decimal and percent pipes.
+ * Needed for: All but Chrome, Firefox, Edge, IE11 and Safari 10
+ */
+// import 'intl';  // Run `npm install --save intl`.
+/**
+ * Need to import at least one locale-data with intl.
+ */
+// import 'intl/locale-data/jsonp/en';

frontend/src/styles.css

@@ -0,0 +1,6 @@
+/* You can add global styles to this file, and also import other style files */
+@import "~@angular/material/prebuilt-themes/indigo-pink.css";
+
+body {
+  margin: 0;
+}

frontend/src/test.ts

@@ -0,0 +1,32 @@
+// This file is required by karma.conf.js and loads recursively all the .spec and framework files
+
+import 'zone.js/dist/long-stack-trace-zone';
+import 'zone.js/dist/proxy.js';
+import 'zone.js/dist/sync-test';
+import 'zone.js/dist/jasmine-patch';
+import 'zone.js/dist/async-test';
+import 'zone.js/dist/fake-async-test';
+import { getTestBed } from '@angular/core/testing';
+import {
+  BrowserDynamicTestingModule,
+  platformBrowserDynamicTesting
+} from '@angular/platform-browser-dynamic/testing';
+
+// Unfortunately there's no typing for the `__karma__` variable. Just declare it as any.
+declare var __karma__: any;
+declare var require: any;
+
+// Prevent Karma from running prematurely.
+__karma__.loaded = function () {};
+
+// First, initialize the Angular testing environment.
+getTestBed().initTestEnvironment(
+  BrowserDynamicTestingModule,
+  platformBrowserDynamicTesting()
+);
+// Then we find all the tests.
+const context = require.context('./', true, /\.spec\.ts$/);
+// And load the modules.
+context.keys().map(context);
+// Finally, start Karma to run the tests.
+__karma__.start();

frontend/src/tsconfig.app.json

@@ -0,0 +1,13 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../out-tsc/app",
+    "module": "es2015",
+    "baseUrl": "",
+    "types": []
+  },
+  "exclude": [
+    "test.ts",
+    "**/*.spec.ts"
+  ]
+}

frontend/src/tsconfig.spec.json

@@ -0,0 +1,20 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../out-tsc/spec",
+    "module": "commonjs",
+    "target": "es5",
+    "baseUrl": "",
+    "types": [
+      "jasmine",
+      "node"
+    ]
+  },
+  "files": [
+    "test.ts"
+  ],
+  "include": [
+    "**/*.spec.ts",
+    "**/*.d.ts"
+  ]
+}

frontend/src/typings.d.ts

@@ -0,0 +1,5 @@
+/* SystemJS module definition */
+declare var module: NodeModule;
+interface NodeModule {
+  id: string;
+}

frontend/tsconfig.json

@@ -0,0 +1,20 @@
+{
+  "compileOnSave": false,
+  "compilerOptions": {
+    "outDir": "./dist/out-tsc",
+    "baseUrl": "src",
+    "sourceMap": true,
+    "declaration": false,
+    "moduleResolution": "node",
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "target": "es5",
+    "typeRoots": [
+      "node_modules/@types"
+    ],
+    "lib": [
+      "es2016",
+      "dom"
+    ]
+  }
+}

frontend/tslint.json

@@ -0,0 +1,130 @@
+{
+  "rulesDirectory": [
+    "node_modules/codelyzer"
+  ],
+  "rules": {
+    "callable-types": true,
+    "class-name": true,
+    "comment-format": [
+      true,
+      "check-space"
+    ],
+    "curly": true,
+    "eofline": true,
+    "forin": true,
+    "import-blacklist": [
+      true,
+      "rxjs"
+    ],
+    "import-spacing": true,
+    "indent": [
+      true,
+      "spaces"
+    ],
+    "interface-over-type-literal": true,
+    "label-position": true,
+    "max-line-length": [
+      true,
+      140
+    ],
+    "member-access": false,
+    "member-ordering": [
+      true,
+      "static-before-instance",
+      "variables-before-functions"
+    ],
+    "no-arg": true,
+    "no-bitwise": true,
+    "no-console": [
+      true,
+      "debug",
+      "info",
+      "time",
+      "timeEnd",
+      "trace"
+    ],
+    "no-construct": true,
+    "no-debugger": true,
+    "no-empty": false,
+    "no-empty-interface": true,
+    "no-eval": true,
+    "no-inferrable-types": [
+      true,
+      "ignore-params"
+    ],
+    "no-shadowed-variable": true,
+    "no-string-literal": false,
+    "no-string-throw": true,
+    "no-switch-case-fall-through": true,
+    "no-trailing-whitespace": true,
+    "no-unused-expression": true,
+    "no-use-before-declare": true,
+    "no-var-keyword": true,
+    "object-literal-sort-keys": false,
+    "one-line": [
+      true,
+      "check-open-brace",
+      "check-catch",
+      "check-else",
+      "check-whitespace"
+    ],
+    "prefer-const": true,
+    "quotemark": [
+      true,
+      "single"
+    ],
+    "radix": true,
+    "semicolon": [
+      "always"
+    ],
+    "triple-equals": [
+      true,
+      "allow-null-check"
+    ],
+    "typedef-whitespace": [
+      true,
+      {
+        "call-signature": "nospace",
+        "index-signature": "nospace",
+        "parameter": "nospace",
+        "property-declaration": "nospace",
+        "variable-declaration": "nospace"
+      }
+    ],
+    "typeof-compare": true,
+    "unified-signatures": true,
+    "variable-name": false,
+    "whitespace": [
+      true,
+      "check-branch",
+      "check-decl",
+      "check-operator",
+      "check-separator",
+      "check-type"
+    ],
+    "directive-selector": [
+      true,
+      "attribute",
+      "app",
+      "camelCase"
+    ],
+    "component-selector": [
+      true,
+      "element",
+      "app",
+      "kebab-case"
+    ],
+    "use-input-property-decorator": true,
+    "use-output-property-decorator": true,
+    "use-host-property-decorator": true,
+    "no-input-rename": true,
+    "no-output-rename": true,
+    "use-life-cycle-interface": true,
+    "use-pipe-transform-interface": true,
+    "component-class-suffix": true,
+    "directive-class-suffix": true,
+    "no-access-missing-member": true,
+    "templates-use-public": true,
+    "invoke-injectable": true
+  }
+}

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Mon Mar 16 20:59:34 CET 2015
+#Thu Oct 19 11:25:29 CEST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.5-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.2-all.zip

gradlew

@@ -42,11 +42,6 @@ case "`uname`" in
     ;;
 esac
 
-# For Cygwin, ensure paths are in UNIX format before anything is touched.
-if $cygwin ; then
-    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
-fi
-
 # Attempt to set APP_HOME
 # Resolve links: $0 may be a link
 PRG="$0"
@@ -61,9 +56,9 @@ while [ -h "$PRG" ] ; do
     fi
 done
 SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >&-
+cd "`dirname \"$PRG\"`/" >/dev/null
 APP_HOME="`pwd -P`"
-cd "$SAVED" >&-
+cd "$SAVED" >/dev/null
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
@@ -114,6 +109,7 @@ fi
 if $cygwin ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
 
     # We build the pattern for arguments to be converted via cygpath
     ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`

settings.gradle

@@ -0,0 +1,3 @@
+include 'frontend'
+
+rootProject.name = 'jabit-server'

src/main/docker/Dockerfile

@@ -0,0 +1,6 @@
+FROM frolvlad/alpine-oraclejdk8:slim
+VOLUME /tmp
+ADD jabit-server.jar app.jar
+RUN sh -c 'touch /app.jar'
+ENV JAVA_OPTS=""
+ENTRYPOINT [ "sh", "-c", "java $JAVA_OPTS -Djava.security.egd=file:/dev/./urandom -jar /app.jar" ]

src/main/java/ch/dissem/bitmessage/server/JabitServerApplication.java

@@ -1,61 +0,0 @@
-package ch.dissem.bitmessage.server;
-
-import ch.dissem.bitmessage.BitmessageContext;
-import ch.dissem.bitmessage.entity.BitmessageAddress;
-import ch.dissem.bitmessage.entity.Plaintext;
-import ch.dissem.bitmessage.networking.DefaultNetworkHandler;
-import ch.dissem.bitmessage.ports.MemoryNodeRegistry;
-import ch.dissem.bitmessage.repository.JdbcAddressRepository;
-import ch.dissem.bitmessage.repository.JdbcConfig;
-import ch.dissem.bitmessage.repository.JdbcInventory;
-import ch.dissem.bitmessage.repository.JdbcMessageRepository;
-import ch.dissem.bitmessage.security.bc.BouncySecurity;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-import java.util.List;
-
-@RestController
-@EnableAutoConfiguration
-public class JabitServerApplication {
-    private BitmessageContext ctx;
-
-    @RequestMapping("status")
-    public String status() {
-        return ctx.status().toString();
-    }
-
-    @RequestMapping("read/{broadcastAddress}")
-    public List<Plaintext> read(@PathVariable String broadcastAddress) {
-        BitmessageAddress broadcaster = ctx.addresses().getAddress(broadcastAddress);
-        if (broadcaster == null) {
-            broadcaster = new BitmessageAddress(broadcastAddress);
-        }
-        if (!broadcaster.isSubscribed()) {
-            ctx.addSubscribtion(broadcaster);
-        }
-        return ctx.messages().findMessages(broadcaster);
-    }
-
-    public JabitServerApplication() {
-        JdbcConfig config = new JdbcConfig();
-        ctx = new BitmessageContext.Builder()
-                .addressRepo(new JdbcAddressRepository(config))
-                .inventory(new JdbcInventory(config))
-                .messageRepo(new JdbcMessageRepository(config))
-                .nodeRegistry(new MemoryNodeRegistry())
-                .networkHandler(new DefaultNetworkHandler())
-                .security(new BouncySecurity())
-                .port(8445)
-                .build();
-        ctx.startup(plaintext -> {
-        });
-    }
-
-    public static void main(String[] args) {
-        SpringApplication.run(JabitServerApplication.class, args);
-    }
-}

src/main/java/ch/dissem/bitmessage/server/ServletInitializer.java

@@ -1,13 +0,0 @@
-package ch.dissem.bitmessage.server;
-
-import org.springframework.boot.builder.SpringApplicationBuilder;
-import org.springframework.boot.context.web.SpringBootServletInitializer;
-
-public class ServletInitializer extends SpringBootServletInitializer {
-
-	@Override
-	protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
-		return application.sources(JabitServerApplication.class);
-	}
-
-}

src/main/java/ch/dissem/bitmessage/server/entities/Broadcasts.java

@@ -1,7 +0,0 @@
-package ch.dissem.bitmessage.server.entities;
-
-/**
- * Created by chrigu on 30.09.15.
- */
-public class Broadcasts {
-}

src/main/java/ch/dissem/bitmessage/server/entities/Message.java

@@ -1,7 +0,0 @@
-package ch.dissem.bitmessage.server.entities;
-
-/**
- * Created by chrigu on 30.09.15.
- */
-public class Message {
-}

src/main/java/ch/dissem/bitmessage/server/entities/Sender.java

@@ -1,7 +0,0 @@
-package ch.dissem.bitmessage.server.entities;
-
-/**
- * Created by chrigu on 30.09.15.
- */
-public class Sender {
-}

src/main/kotlin/ch/dissem/bitmessage/server/Constants.kt

@@ -0,0 +1,13 @@
+package ch.dissem.bitmessage.server
+
+/**
+ * Created by chrigu on 22.11.15.
+ */
+object Constants {
+    val ADMIN_LIST = "admins.conf"
+    val CLIENT_LIST = "clients.conf"
+
+    val WHITELIST = "whitelist.conf"
+    val SHORTLIST = "shortlist.conf"
+    val BLACKLIST = "blacklist.conf"
+}

src/main/kotlin/ch/dissem/bitmessage/server/Converter.kt

@@ -0,0 +1,55 @@
+/*
+ * Copyright 2015 Christian Basler
+ *
+ * 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.
+ */
+
+package ch.dissem.bitmessage.server
+
+import ch.dissem.bitmessage.entity.BitmessageAddress
+import ch.dissem.bitmessage.entity.Plaintext
+import ch.dissem.bitmessage.server.entities.Broadcasts
+import ch.dissem.bitmessage.server.entities.Message
+import ch.dissem.bitmessage.server.entities.Sender
+import ch.dissem.bitmessage.utils.UnixTime
+
+object Converter {
+    fun broadcasts(sender: BitmessageAddress, messages: Collection<Plaintext>) = Broadcasts().also {
+        it.sender = sender(sender)
+        it.messages = messages.map { message(it) }.toTypedArray()
+    }
+
+    fun broadcasts(sender: BitmessageAddress, vararg messages: Message) = Broadcasts().also {
+        it.sender = sender(sender)
+        it.messages = arrayOf(*messages)
+    }
+
+    fun sender(sender: BitmessageAddress) = Sender().apply {
+        address = sender.address
+        alias = sender.toString()
+    }
+
+    fun message(subject: String, body: String) = Message().also {
+        it.id = 0
+        it.received = UnixTime.now
+        it.subject = subject
+        it.body = body
+    }
+
+    fun message(plaintext: Plaintext) = Message().apply {
+        id = plaintext.id
+        received = plaintext.received
+        subject = plaintext.subject
+        body = plaintext.text
+    }
+}

src/main/kotlin/ch/dissem/bitmessage/server/FrontendController.kt

@@ -0,0 +1,18 @@
+package ch.dissem.bitmessage.server
+
+import org.springframework.stereotype.Controller
+import org.springframework.web.bind.annotation.RequestMapping
+import javax.servlet.http.HttpServletRequest
+
+
+@Controller
+@RequestMapping
+class FrontendController {
+
+    @RequestMapping("/{path:[^\\.]+}/**")
+    fun redirect(request: HttpServletRequest): String {
+        // Also forward to home page so that route is preserved.
+        return "forward:/index.html"
+    }
+
+}

src/main/kotlin/ch/dissem/bitmessage/server/JabitServerApplication.kt

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2015 Christian Basler
+ *
+ * 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.
+ */
+
+package ch.dissem.bitmessage.server
+
+import org.springframework.boot.SpringApplication
+import org.springframework.boot.autoconfigure.SpringBootApplication
+import org.springframework.context.annotation.ComponentScan
+import org.springframework.scheduling.annotation.EnableScheduling
+import org.springframework.web.servlet.config.annotation.EnableWebMvc
+import springfox.documentation.swagger2.annotations.EnableSwagger2
+
+@EnableWebMvc
+@EnableSwagger2
+@EnableScheduling
+@SpringBootApplication
+@ComponentScan(basePackageClasses = [JabitServerApplication::class])
+class JabitServerApplication {
+
+    companion object {
+        @JvmStatic
+        fun main(args: Array<String>) {
+            SpringApplication.run(JabitServerApplication::class.java, *args)
+        }
+    }
+
+}

src/main/kotlin/ch/dissem/bitmessage/server/JabitServerConfig.kt

@@ -0,0 +1,193 @@
+/*
+ * Copyright 2015 Christian Basler
+ *
+ * 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.
+ */
+
+package ch.dissem.bitmessage.server
+
+import ch.dissem.bitmessage.BitmessageContext
+import ch.dissem.bitmessage.cryptography.bc.BouncyCryptography
+import ch.dissem.bitmessage.entity.BitmessageAddress
+import ch.dissem.bitmessage.entity.payload.Pubkey
+import ch.dissem.bitmessage.networking.nio.NioNetworkHandler
+import ch.dissem.bitmessage.repository.*
+import ch.dissem.bitmessage.server.Constants.ADMIN_LIST
+import ch.dissem.bitmessage.server.Constants.BLACKLIST
+import ch.dissem.bitmessage.server.Constants.CLIENT_LIST
+import ch.dissem.bitmessage.server.Constants.SHORTLIST
+import ch.dissem.bitmessage.server.Constants.WHITELIST
+import ch.dissem.bitmessage.server.repository.ServerProofOfWorkRepository
+import ch.dissem.bitmessage.utils.Singleton
+import org.slf4j.LoggerFactory
+import org.springframework.beans.factory.annotation.Value
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+import org.springframework.context.annotation.DependsOn
+import springfox.documentation.spi.DocumentationType
+import springfox.documentation.spring.web.plugins.Docket
+
+@Configuration
+class JabitServerConfig {
+
+    @Value("\${bitmessage.port}")
+    private val port: Int = 0
+    @Value("\${bitmessage.connection.ttl.hours}")
+    private val connectionTTL: Long = 0
+    @Value("\${bitmessage.connection.limit}")
+    private val connectionLimit: Int = 0
+
+    @Value("\${database.url}")
+    private lateinit var dbUrl: String
+    @Value("\${database.user}")
+    private lateinit var dbUser: String
+    @Value("\${database.password}")
+    private var dbPassword: String? = null
+
+    @Bean
+    fun jdbcConfig() = JdbcConfig(dbUrl, dbUser, dbPassword)
+
+    @Bean
+    fun addressRepo() = JdbcAddressRepository(jdbcConfig())
+
+    @Bean
+    fun inventory() = JdbcInventory(jdbcConfig())
+
+    @Bean
+    fun labelRepo() = JdbcLabelRepository(jdbcConfig())
+
+    @Bean
+    fun messageRepo() = JdbcMessageRepository(jdbcConfig())
+
+    @Bean
+    fun proofOfWorkRepo() = JdbcProofOfWorkRepository(jdbcConfig())
+
+    @Bean
+    fun nodeRegistry() = JdbcNodeRegistry(jdbcConfig())
+
+    @Bean
+    fun networkHandler() = NioNetworkHandler()
+
+    @Bean
+    fun cryptography() = BouncyCryptography().also {
+        Singleton.initialize(it) // needed for admins and clients
+    }
+
+    @Bean
+    fun serverListener(): BitmessageContext.Listener =
+            ServerListener(
+                    admins(), clients(),
+                    whitelist(), shortlist(), blacklist()
+            )
+
+    @Bean
+    fun serverProofOfWorkRepository() = ServerProofOfWorkRepository(jdbcConfig())
+
+    @Bean
+    fun commandHandler() = ProofOfWorkRequestHandler(serverProofOfWorkRepository(), clients())
+
+    @Bean
+    fun bitmessageContext() = BitmessageContext.build {
+        addressRepo = addressRepo()
+        inventory = inventory()
+        labelRepo = labelRepo()
+        messageRepo = messageRepo()
+        nodeRegistry = nodeRegistry()
+        proofOfWorkRepo = proofOfWorkRepo()
+        networkHandler = networkHandler()
+        listener = serverListener()
+        customCommandHandler = commandHandler()
+        cryptography = cryptography()
+        preferences.port = port
+        preferences.connectionLimit = connectionLimit
+        preferences.connectionTTL = connectionTTL
+    }
+
+    @Bean
+    @DependsOn("cryptography")
+    fun admins() = Utils.readOrCreateList(
+            ADMIN_LIST,
+            """# Admins can send commands to the server.
+                |
+            """.trimMargin()
+    ).map { BitmessageAddress(it) }.toMutableSet()
+
+    @Bean
+    @DependsOn("cryptography")
+    fun clients() = Utils.readOrCreateList(
+            CLIENT_LIST,
+            "# Clients may send incomplete objects for proof of work.\n"
+    ).map { BitmessageAddress(it) }.toMutableSet()
+
+    @Bean
+    fun whitelist() = Utils.readOrCreateList(
+            WHITELIST,
+            """# If there are any Bitmessage addresses in the whitelist, only those will be shown.
+                |# blacklist.conf will be ignored, but shortlist.conf will be applied to whitelisted addresses.
+                |
+            """.trimMargin()
+    )
+
+    @Bean
+    fun shortlist() = Utils.readOrCreateList(
+            SHORTLIST,
+            """"# Broadcasts of these addresses will be restricted to the last $SHORTLIST_SIZE entries.
+                |
+                |# Time Service:
+                |BM-BcbRqcFFSQUUmXFKsPJgVQPSiFA3Xash
+                |
+                |# Q's Aktivlist:
+                |BM-GtT7NLCCAu3HrT7dNTUTY9iDns92Z2ND
+                |
+            """.trimMargin()
+    )
+
+    @Bean
+    fun blacklist() = Utils.readOrCreateList(
+            BLACKLIST,
+            """# Bitmessage addresses in this file are being ignored and their broadcasts won't be returned.
+                |
+            """.trimMargin()
+    )
+
+    @Bean
+    fun api(): Docket = Docket(DocumentationType.SWAGGER_2)
+            .select()
+            .build()
+
+    @Bean
+    fun identity(): BitmessageAddress {
+        val identities = bitmessageContext().addresses.getIdentities()
+        val identity: BitmessageAddress
+        if (identities.isEmpty()) {
+            LOG.info("Creating new identity...")
+            identity = bitmessageContext().createIdentity(false, Pubkey.Feature.DOES_ACK)
+            LOG.info("Identity ${identity.address} created.")
+        } else {
+            LOG.info("Identities:")
+            identities.forEach { LOG.info(it.address) }
+            identity = identities[0]
+            if (identities.size > 1) {
+                LOG.info("Using $identity")
+            }
+        }
+        LOG.info("QR Code:\n" + Utils.qrCode(identity))
+        return identity
+    }
+
+    companion object {
+        private val LOG = LoggerFactory.getLogger(JabitServerConfig::class.java)
+
+        val SHORTLIST_SIZE = 5
+    }
+}

src/main/kotlin/ch/dissem/bitmessage/server/JabitServerController.kt

@@ -0,0 +1,110 @@
+/*
+ * Copyright 2015 Christian Basler
+ *
+ * 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.
+ */
+
+package ch.dissem.bitmessage.server
+
+import ch.dissem.bitmessage.BitmessageContext
+import ch.dissem.bitmessage.entity.BitmessageAddress
+import ch.dissem.bitmessage.server.Converter.broadcasts
+import ch.dissem.bitmessage.server.Converter.message
+import ch.dissem.bitmessage.server.entities.Broadcasts
+import org.springframework.scheduling.annotation.Scheduled
+import org.springframework.web.bind.annotation.CrossOrigin
+import org.springframework.web.bind.annotation.PathVariable
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RequestMethod.GET
+import org.springframework.web.bind.annotation.RestController
+import javax.annotation.PostConstruct
+import javax.annotation.Resource
+import javax.inject.Inject
+
+/**
+ * @author Christian Basler
+ */
+@CrossOrigin
+@RestController
+@RequestMapping("/api/v1")
+class JabitServerController {
+
+    @Resource
+    private lateinit var whitelist: Set<String>
+    @Resource
+    private lateinit var shortlist: Set<String>
+    @Resource
+    private lateinit var blacklist: Set<String>
+    @Inject
+    private lateinit var identity: BitmessageAddress
+    @Inject
+    private lateinit var ctx: BitmessageContext
+
+    @RequestMapping(value = ["identity"], method = [GET], produces = ["application/json"])
+    fun identity() = """{
+    "address": "${identity.address}",
+    "uri":     "${Utils.getURL(identity, true)}"
+}"""
+
+    @RequestMapping(value = ["status"], method = [GET], produces = ["application/json"])
+    fun status() = "{${ctx.status()}}"
+
+    @RequestMapping(value = ["read/{broadcastAddress}"], method = [GET])
+    fun read(@PathVariable broadcastAddress: String): Broadcasts {
+        if ("test".equals(broadcastAddress, ignoreCase = true)) {
+            return broadcasts(
+                    BitmessageAddress("BM-2cWhyaPxydemCeM8dWJUBmEo8iu7v2JptK"),
+                    message("Test", "This is a test message. The rest service is running."),
+                    message("Another Test", "And because it's such fun, a second message.")
+            )
+        }
+
+        var broadcaster = ctx.addresses.getAddress(broadcastAddress)
+        if (broadcaster == null) {
+            broadcaster = BitmessageAddress(broadcastAddress)
+        }
+
+        if (!whitelist.isEmpty() && !whitelist.contains(broadcaster.address)) {
+            return broadcasts(broadcaster, message("Not Whitelisted", "Messages for " + broadcaster +
+                    " can't be shown, as the sender isn't on the whitelist."))
+        }
+        if (blacklist.contains(broadcaster.address)) {
+            return broadcasts(broadcaster, message("Blacklisted", "Unfortunately, " + broadcaster +
+                    " is on the blacklist, so it's messages can't be shown."))
+        }
+
+        if (!broadcaster.isSubscribed) {
+            ctx.addSubscribtion(broadcaster)
+        }
+        val messages = ctx.messages.findMessages(broadcaster)
+        return if (shortlist.contains(broadcaster.address) && messages.size > SHORTLIST_SIZE) {
+            messages.listIterator(SHORTLIST_SIZE).forEach { ctx.messages.remove(it) }
+            broadcasts(broadcaster, messages.subList(0, SHORTLIST_SIZE))
+        } else {
+            broadcasts(broadcaster, messages)
+        }
+    }
+
+    @Scheduled(cron = "0 0 0 * * *")
+    fun broadcastStatus() = ctx.broadcast(identity, "Status", ctx.status().toString())
+
+    @Scheduled(cron = "0 0 2 * * *")
+    fun cleanup() = ctx.cleanup()
+
+    @PostConstruct
+    fun setUp() = ctx.startup()
+
+    companion object {
+        private val SHORTLIST_SIZE = 5
+    }
+}

src/main/kotlin/ch/dissem/bitmessage/server/ProofOfWorkRequestHandler.kt

@@ -0,0 +1,122 @@
+/*
+ * Copyright 2015 Christian Basler
+ *
+ * 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.
+ */
+
+package ch.dissem.bitmessage.server
+
+import ch.dissem.bitmessage.InternalContext
+import ch.dissem.bitmessage.entity.BitmessageAddress
+import ch.dissem.bitmessage.entity.CustomMessage
+import ch.dissem.bitmessage.entity.MessagePayload
+import ch.dissem.bitmessage.entity.valueobject.PrivateKey
+import ch.dissem.bitmessage.exception.DecryptionFailedException
+import ch.dissem.bitmessage.extensions.CryptoCustomMessage
+import ch.dissem.bitmessage.extensions.pow.ProofOfWorkRequest
+import ch.dissem.bitmessage.extensions.pow.ProofOfWorkRequest.Request.CALCULATING
+import ch.dissem.bitmessage.extensions.pow.ProofOfWorkRequest.Request.COMPLETE
+import ch.dissem.bitmessage.ports.CustomCommandHandler
+import ch.dissem.bitmessage.ports.ProofOfWorkEngine
+import ch.dissem.bitmessage.server.repository.ServerProofOfWorkRepository
+import ch.dissem.bitmessage.utils.UnixTime.DAY
+import org.slf4j.LoggerFactory
+import java.util.*
+import kotlin.concurrent.schedule
+
+/**
+ * @author Christian Basler
+ */
+class ProofOfWorkRequestHandler(private val repo: ServerProofOfWorkRepository, clients: Collection<BitmessageAddress>) : CustomCommandHandler, InternalContext.ContextHolder {
+
+    private val decryptionKeys = clients.map { it.publicDecryptionKey }
+    private lateinit var engine: ProofOfWorkEngine
+    private lateinit var context: InternalContext
+
+    private val identity: BitmessageAddress by lazy {
+        context.addressRepository.getIdentities().firstOrNull() ?: BitmessageAddress(PrivateKey(
+                false,
+                context.streams[0],
+                InternalContext.NETWORK_NONCE_TRIALS_PER_BYTE,
+                InternalContext.NETWORK_EXTRA_BYTES
+        )).also { context.addressRepository.save(it) }
+    }
+
+    init {
+        Timer().schedule(15000) {
+            doMissingProofOfWork()
+        } // wait  15 seconds
+        Timer().schedule(60000, DAY * 1000) {
+            repo.cleanupTasks(7 * DAY)
+        } // First time after 1 minute, then daily
+    }
+
+    fun doMissingProofOfWork() {
+        val incompleteTasks = repo.getIncompleteTasks()
+        LOG.info("Doing POW for ${incompleteTasks.size} tasks.")
+        for (task in incompleteTasks) {
+            engine.calculateNonce(task.initialHash, task.target) { initalHash, nonce -> repo.updateTask(initalHash, nonce) }
+        }
+    }
+
+    override fun handle(request: CustomMessage): MessagePayload? {
+        val cryptoMessage = CryptoCustomMessage.read(request) { client, input ->
+            ProofOfWorkRequest.read(client, input)
+        }
+        val decryptedRequest = decrypt(cryptoMessage) ?: return CustomMessage.error(
+                "Unknown sender. Please ask the server's administrator to add you as a client. For this he'll need your identity."
+        )
+        when (decryptedRequest.request) {
+            ProofOfWorkRequest.Request.CALCULATE -> {
+                if (!repo.hasTask(decryptedRequest.initialHash)) {
+                    repo.storeTask(decryptedRequest)
+                    // TODO: This is probably the place to do some book-keeping
+                    // if we want to bill our customers.
+                    engine.calculateNonce(decryptedRequest.initialHash, decryptedRequest.data) { initalHash, nonce -> repo.updateTask(initalHash, nonce) }
+                    return CryptoCustomMessage(
+                            ProofOfWorkRequest(identity, decryptedRequest.initialHash, CALCULATING, ByteArray(0))
+                    )
+                } else {
+                    val nonce = repo.getNonce(decryptedRequest)
+                    return CryptoCustomMessage(
+                            if (nonce != null) {
+                                ProofOfWorkRequest(identity, decryptedRequest.initialHash, COMPLETE, nonce)
+                            } else {
+                                ProofOfWorkRequest(identity, decryptedRequest.initialHash, CALCULATING, ByteArray(0))
+                            }
+                    ).apply { signAndEncrypt(identity, decryptedRequest.sender.pubkey!!.encryptionKey) }
+                }
+            }
+            else -> return null
+        }
+    }
+
+    private fun decrypt(cryptoMessage: CryptoCustomMessage<ProofOfWorkRequest>): ProofOfWorkRequest? {
+        for (key in decryptionKeys) {
+            try {
+                return cryptoMessage.decrypt(key)
+            } catch (_: DecryptionFailedException) {
+            }
+        }
+        return null
+    }
+
+    override fun setContext(context: InternalContext) {
+        this.context = context
+        this.engine = context.proofOfWorkEngine
+    }
+
+    companion object {
+        private val LOG = LoggerFactory.getLogger(ProofOfWorkRequestHandler::class.java)
+    }
+}

src/main/kotlin/ch/dissem/bitmessage/server/ServerListener.kt

@@ -0,0 +1,171 @@
+/*
+ * Copyright 2015 Christian Basler
+ *
+ * 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.
+ */
+
+package ch.dissem.bitmessage.server
+
+import ch.dissem.bitmessage.BitmessageContext
+import ch.dissem.bitmessage.entity.BitmessageAddress
+import ch.dissem.bitmessage.entity.Plaintext
+import ch.dissem.bitmessage.entity.Plaintext.Encoding.EXTENDED
+import ch.dissem.bitmessage.entity.Plaintext.Type.MSG
+import ch.dissem.bitmessage.entity.valueobject.extended.Message
+import ch.dissem.bitmessage.server.Constants.ADMIN_LIST
+import ch.dissem.bitmessage.server.Constants.BLACKLIST
+import ch.dissem.bitmessage.server.Constants.CLIENT_LIST
+import ch.dissem.bitmessage.server.Constants.SHORTLIST
+import ch.dissem.bitmessage.server.Constants.WHITELIST
+import org.slf4j.LoggerFactory
+import java.util.*
+
+/**
+ * @author Christian Basler
+ */
+class ServerListener(private val admins: MutableCollection<BitmessageAddress>,
+                     private val clients: MutableCollection<BitmessageAddress>,
+                     private val whitelist: MutableCollection<String>,
+                     private val shortlist: MutableCollection<String>,
+                     private val blacklist: MutableCollection<String>) : BitmessageContext.Listener.WithContext {
+
+    private lateinit var ctx: BitmessageContext
+    private val identity: BitmessageAddress by lazy {
+        val identities = ctx.addresses.getIdentities()
+        if (identities.isEmpty()) {
+            ctx.createIdentity(false)
+        } else {
+            identities[0]
+        }
+    }
+
+    override fun setContext(ctx: BitmessageContext) {
+        this.ctx = ctx
+    }
+
+    override fun receive(plaintext: Plaintext) {
+        if (admins.contains(plaintext.from)) {
+            val command = plaintext.subject!!.trim { it <= ' ' }.toLowerCase().split("\\s+".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray()
+            val data = plaintext.text
+            if (command.size == 1) {
+                when (command[0].toLowerCase()) {
+                    "status" -> {
+                        val response = Plaintext.Builder(MSG)
+                        response.from(identity)
+                        response.to(plaintext.from)
+                        if (plaintext.encoding == EXTENDED) {
+                            response.message(
+                                    Message.Builder()
+                                            .subject("RE: status")
+                                            .body(ctx.status().toString())
+                                            .addParent(plaintext)
+                                            .build()
+                            )
+                        } else {
+                            response.message("RE: status", ctx.status().toString())
+                        }
+                        ctx.send(response.build())
+                    }
+                    else -> LOG.info("ignoring  unknown command " + plaintext.subject!!)
+                }
+            } else if (command.size == 2) {
+                when (command[1].toLowerCase()) {
+                    "client", "clients" -> updateUserList(CLIENT_LIST, clients, command[0], data)
+                    "admin", "admins", "administrator", "administrators" -> updateUserList(ADMIN_LIST, admins, command[0], data)
+                    "whitelist" -> updateList(WHITELIST, whitelist, command[0], data)
+                    "shortlist" -> updateList(SHORTLIST, shortlist, command[0], data)
+                    "blacklist" -> updateList(BLACKLIST, blacklist, command[0], data)
+                    else -> LOG.info("ignoring  unknown command " + plaintext.subject!!)
+                }
+            }
+        }
+    }
+
+    private fun updateUserList(file: String, list: MutableCollection<BitmessageAddress>, command: String, data: String?) {
+        when (command.toLowerCase()) {
+            "set" -> {
+                list.clear()
+                val scanner = Scanner(data!!)
+                while (scanner.hasNextLine()) {
+                    val line = scanner.nextLine()
+                    try {
+                        list.add(BitmessageAddress(line))
+                    } catch (e: Exception) {
+                        LOG.info("$command $file: ignoring line: $line")
+                    }
+
+                }
+                Utils.saveList(file, list.map { it.address })
+            }
+            "add" -> {
+                val scanner = Scanner(data!!)
+                while (scanner.hasNextLine()) {
+                    val line = scanner.nextLine()
+                    try {
+                        list.add(BitmessageAddress(line))
+                    } catch (e: Exception) {
+                        LOG.info("$command $file: ignoring line: $line")
+                    }
+
+                }
+                Utils.saveList(file, list.map { it.address })
+            }
+            "remove" -> {
+                list.removeIf { address -> data!!.contains(address.address) }
+                Utils.saveList(file, list.map { it.address })
+            }
+            else -> LOG.info("unknown command $command on list $file")
+        }
+    }
+
+    private fun updateList(file: String, list: MutableCollection<String>, command: String, data: String?) {
+        when (command.toLowerCase()) {
+            "set" -> {
+                list.clear()
+                val scanner = Scanner(data!!)
+                while (scanner.hasNextLine()) {
+                    val line = scanner.nextLine()
+                    try {
+                        list.add(BitmessageAddress(line).address)
+                    } catch (e: Exception) {
+                        LOG.info("$command $file: ignoring line: $line")
+                    }
+
+                }
+                Utils.saveList(file, list)
+            }
+            "add" -> {
+                val scanner = Scanner(data!!)
+                while (scanner.hasNextLine()) {
+                    val line = scanner.nextLine()
+                    try {
+                        list.add(BitmessageAddress(line).address)
+                    } catch (e: Exception) {
+                        LOG.info("$command $file: ignoring line: $line")
+                    }
+
+                }
+                Utils.saveList(file, list)
+            }
+            "remove" -> {
+                list.removeAll { data!!.contains(it) }
+                Utils.saveList(file, list)
+            }
+            else -> LOG.info("unknown command $command on list $file")
+        }
+    }
+
+    companion object {
+        private val LOG = LoggerFactory.getLogger(ServerListener::class.java)
+    }
+}

src/main/kotlin/ch/dissem/bitmessage/server/ServletInitializer.kt

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2015 Christian Basler
+ *
+ * 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.
+ */
+
+package ch.dissem.bitmessage.server
+
+import org.springframework.boot.builder.SpringApplicationBuilder
+import org.springframework.boot.web.servlet.support.SpringBootServletInitializer
+
+class ServletInitializer : SpringBootServletInitializer() {
+
+    override fun configure(application: SpringApplicationBuilder): SpringApplicationBuilder {
+        return application.sources(JabitServerApplication::class.java)
+    }
+
+}

src/main/kotlin/ch/dissem/bitmessage/server/Utils.kt

@@ -0,0 +1,129 @@
+/*
+ * Copyright 2015 Christian Basler
+ *
+ * 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.
+ */
+
+package ch.dissem.bitmessage.server
+
+import ch.dissem.bitmessage.entity.BitmessageAddress
+import com.google.zxing.WriterException
+import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel
+import com.google.zxing.qrcode.encoder.Encoder
+import com.google.zxing.qrcode.encoder.QRCode
+import org.slf4j.LoggerFactory
+import java.io.ByteArrayOutputStream
+import java.io.File
+import java.io.FileWriter
+import java.nio.file.Files
+import java.util.*
+
+object Utils {
+    private val LOG = LoggerFactory.getLogger(Utils::class.java)
+
+    fun readOrCreateList(filename: String, content: String): MutableSet<String> {
+        val file = File(filename).apply {
+            if (!exists()) {
+                if (createNewFile()) {
+                    FileWriter(this).use { fw -> fw.write(content) }
+                }
+            }
+        }
+        return readList(file)
+    }
+
+    fun saveList(filename: String, content: Collection<String>) {
+        FileWriter(filename).use { fw ->
+            content.forEach { l ->
+                fw.write(l)
+                fw.write(System.lineSeparator())
+            }
+        }
+    }
+
+    fun readList(file: File) = Files.readAllLines(file.toPath())
+            .map { it.trim { it <= ' ' } }
+            .filter { it.startsWith("BM-") }
+            .toMutableSet()
+
+    fun getURL(address: BitmessageAddress, includeKey: Boolean): String {
+        val attributes = mutableListOf<String>()
+        if (address.alias != null) {
+            attributes.add("label=${address.alias}")
+        }
+        if (includeKey) {
+            address.pubkey?.let { pubkey ->
+                val out = ByteArrayOutputStream()
+                pubkey.writer().writeUnencrypted(out)
+                attributes.add("pubkey=${Base64.getUrlEncoder().encodeToString(out.toByteArray())}")
+            }
+        }
+
+        return if (attributes.isEmpty()) {
+            "bitmessage:${address.address}"
+        } else {
+            "bitmessage:${address.address}?${attributes.joinToString(separator = "&")}"
+        }
+    }
+
+    fun qrCode(address: BitmessageAddress): String {
+        val code: QRCode
+        try {
+            code = Encoder.encode(getURL(address, false), ErrorCorrectionLevel.L, null)
+        } catch (e: WriterException) {
+            LOG.error(e.message, e)
+            return ""
+        }
+
+        val matrix = code.matrix
+        val result = StringBuilder()
+        for (i in 0..1) {
+            for (j in 0 until matrix.width + 8) {
+                result.append('█')
+            }
+            result.append('\n')
+        }
+        run {
+            var i = 0
+            while (i < matrix.height) {
+                result.append("████")
+                for (j in 0 until matrix.width) {
+                    if (matrix.get(i, j) > 0) {
+                        if (matrix.height > i + 1 && matrix.get(i + 1, j) > 0) {
+                            result.append(' ')
+                        } else {
+                            result.append('▄')
+                        }
+                    } else {
+                        if (matrix.height > i + 1 && matrix.get(i + 1, j) > 0) {
+                            result.append('▀')
+                        } else {
+                            result.append('█')
+                        }
+                    }
+                }
+                result.append("████\n")
+                i += 2
+            }
+        }
+        for (i in 0..1) {
+            for (j in 0 until matrix.width + 8) {
+                result.append('█')
+            }
+            result.append('\n')
+        }
+        return result.toString()
+    }
+
+    fun zero(nonce: ByteArray) = nonce.none { it.toInt() != 0 }
+}

src/main/kotlin/ch/dissem/bitmessage/server/WebMvcConfig.kt

@@ -0,0 +1,20 @@
+package ch.dissem.bitmessage.server
+
+import org.springframework.context.annotation.Configuration
+import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer
+
+
+@Configuration
+class WebMvcConfig : WebMvcConfigurer {
+
+    override fun addResourceHandlers(registry: ResourceHandlerRegistry) {
+        if (!registry.hasMappingForPattern("/webjars/**")) {
+            registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/")
+        }
+        if (!registry.hasMappingForPattern("/**")) {
+            registry.addResourceHandler("/**").addResourceLocations("classpath:/public/")
+        }
+    }
+
+}

src/main/kotlin/ch/dissem/bitmessage/server/entities/Broadcasts.kt

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2015 Christian Basler
+ *
+ * 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.
+ */
+
+package ch.dissem.bitmessage.server.entities
+
+/**
+ * JSON representation for the broadcasts of a specific sender
+ */
+data class Broadcasts(
+        var sender: Sender? = null,
+        var messages: Array<Message> = emptyArray()
+)

src/main/kotlin/ch/dissem/bitmessage/server/entities/Message.kt

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2015 Christian Basler
+ *
+ * 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.
+ */
+
+package ch.dissem.bitmessage.server.entities
+
+/**
+ * JSON representation for plaintext messages
+ */
+data class Message(
+        var id: Any? = null,
+        var received: Long? = null,
+        var subject: String? = null,
+        var body: String? = null
+)

src/main/kotlin/ch/dissem/bitmessage/server/entities/Sender.kt

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2015 Christian Basler
+ *
+ * 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.
+ */
+
+package ch.dissem.bitmessage.server.entities
+
+/**
+ * JSON representation for a BitmessageAddress
+ */
+data class Sender(
+        var address: String? = null,
+        var alias: String? = null
+)

src/main/kotlin/ch/dissem/bitmessage/server/entities/Update.kt

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2015 Christian Basler
+ *
+ * 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.
+ */
+
+package ch.dissem.bitmessage.server.entities
+
+/**
+ * @author Christian Basler
+ */
+data class Update<T>(val oldValue: T, val newValue: T)

src/main/kotlin/ch/dissem/bitmessage/server/repository/ServerProofOfWorkRepository.kt

@@ -0,0 +1,107 @@
+/*
+ * Copyright 2015 Christian Basler
+ *
+ * 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.
+ */
+
+package ch.dissem.bitmessage.server.repository
+
+import ch.dissem.bitmessage.extensions.pow.ProofOfWorkRequest
+import ch.dissem.bitmessage.repository.JdbcConfig
+import ch.dissem.bitmessage.repository.JdbcHelper
+import ch.dissem.bitmessage.utils.UnixTime
+import java.util.*
+
+/**
+ * @author Christian Basler
+ */
+class ServerProofOfWorkRepository(config: JdbcConfig) : JdbcHelper(config) {
+
+    fun getIncompleteTasks(): List<Task> {
+        config.getConnection().use { connection ->
+            val result = LinkedList<Task>()
+            val rs = connection.createStatement().executeQuery(
+                    "SELECT initial_hash, target FROM ProofOfWorkTask WHERE nonce IS NULL")
+            while (rs.next()) {
+                result.add(Task(
+                        rs.getBytes(1),
+                        rs.getBytes(2)
+                ))
+            }
+            return result
+        }
+    }
+
+    /**
+     * client (can be removed once the new IV is returned)
+     * IV (without nonce)
+     * IV (with nonce, can be removed once the new IV is returned)
+     * status: calculating, finished, confirmed
+     * data (can be removed once POW calculation is done)
+     */
+    fun storeTask(request: ProofOfWorkRequest) {
+        config.getConnection().use { connection ->
+            val ps = connection.prepareStatement(
+                    "INSERT INTO ProofOfWorkTask (initial_hash, client, target, timestamp) VALUES (?, ?, ?, ?)")
+            ps.setBytes(1, request.initialHash)
+            ps.setString(2, request.sender.address)
+            ps.setBytes(3, request.data)
+            ps.setLong(4, UnixTime.now)
+            ps.executeUpdate()
+        }
+    }
+
+    fun updateTask(initalHash: ByteArray, nonce: ByteArray) {
+        config.getConnection().use { connection ->
+            val ps = connection.prepareStatement(
+                    "UPDATE ProofOfWorkTask SET nonce = ? WHERE initial_hash = ?")
+            ps.setBytes(1, nonce)
+            ps.setBytes(2, initalHash)
+            ps.executeUpdate()
+        }
+    }
+
+    fun getNonce(request: ProofOfWorkRequest): ByteArray? {
+        config.getConnection().use { connection ->
+            val ps = connection.prepareStatement("SELECT nonce FROM ProofOfWorkTask WHERE initial_hash = ?")
+            ps.setBytes(1, request.initialHash)
+            val rs = ps.executeQuery()
+            return if (rs.next()) {
+                rs.getBytes(1)
+            } else {
+                null
+            }
+        }
+    }
+
+    fun hasTask(initialHash: ByteArray): Boolean {
+        config.getConnection().use { connection ->
+            val ps = connection.prepareStatement("SELECT count(1) FROM ProofOfWorkTask WHERE initial_hash = ?")
+            ps.setBytes(1, initialHash)
+            val rs = ps.executeQuery()
+            rs.next()
+            return rs.getInt(1) > 0
+        }
+    }
+
+    fun cleanupTasks(ageInSeconds: Long) {
+        config.getConnection().use { connection ->
+            val ps = connection.prepareStatement(
+                    "DELETE FROM ProofOfWorkTask WHERE timestamp < ?")
+            ps.setLong(1, UnixTime.now - ageInSeconds)
+            ps.executeUpdate()
+        }
+    }
+
+    class Task internal constructor(val initialHash: ByteArray, val target: ByteArray)
+}

src/main/resources/application.yml

@@ -0,0 +1,16 @@
+#server.servlet.contextPath=/jabit-server
+logging:
+  file: 'jabit.log'
+  level.*: ERROR
+  level.ch.dissem.*: WARN
+
+bitmessage:
+  port: 8444
+  connection:
+    ttl.hours: 12
+    limit: 100
+
+database:
+  url: 'jdbc:h2:file:./jabit;AUTO_SERVER=TRUE;DB_CLOSE_DELAY=10'
+  user: 'sa'
+  password:

src/main/resources/db/migration/V1.2.1__ProofOfWorkTask.sql

@@ -0,0 +1,7 @@
+CREATE TABLE ProofOfWorkTask (
+  initial_hash BINARY(64)  NOT NULL PRIMARY KEY,
+  client       VARCHAR(40) NOT NULL,
+  target       BINARY(32),
+  nonce        BINARY(8),
+  timestamp    BIGINT      NOT NULL,
+);

src/test/java/ch/dissem/bitmessage/server/JabitServerApplicationTests.java

@@ -1,18 +0,0 @@
-package ch.dissem.bitmessage.server;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.springframework.boot.test.SpringApplicationConfiguration;
-import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
-import org.springframework.test.context.web.WebAppConfiguration;
-
-@RunWith(SpringJUnit4ClassRunner.class)
-@SpringApplicationConfiguration(classes = JabitServerApplication.class)
-@WebAppConfiguration
-public class JabitServerApplicationTests {
-
-    @Test
-    public void contextLoads() {
-    }
-
-}

src/test/java/ch/dissem/bitmessage/server/JabitServerApplicationTests.kt

@@ -0,0 +1,17 @@
+package ch.dissem.bitmessage.server
+
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner
+import org.springframework.test.context.web.WebAppConfiguration
+
+@WebAppConfiguration
+@RunWith(SpringJUnit4ClassRunner::class)
+@SpringBootTest(classes = [JabitServerApplication::class])
+class JabitServerApplicationTests {
+
+    @Test
+    fun contextLoads() = Unit
+
+}

src/test/resources/application.yml

@@ -0,0 +1,15 @@
+logging:
+  file: 'jabit.log'
+  level.*: DEBUG
+  level.ch.dissem.*: DEBUG
+
+bitmessage:
+  port: 18444
+  connection:
+    ttl.hours: 12
+    limit: 100
+
+database:
+  url: 'jdbc:h2:mem:jabit;DB_CLOSE_DELAY=10'
+  user: sa
+  password: