Adding react-recaptch sample

samples/react-recaptcha/.editorconfig

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+# EditorConfig helps developers define and maintain consistent
+# coding styles between different editors and IDEs
+# editorconfig.org
+
+root = true
+
+
+[*]
+
+# change these settings to your own preference
+indent_style = space
+indent_size = 2
+
+# we recommend you to keep these unchanged
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[{package,bower}.json]
+indent_style = space
+indent_size = 2

samples/react-recaptcha/.gitignore

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+# Logs
+logs
+*.log
+npm-debug.log*
+
+# Dependency directories
+node_modules
+
+# Build generated files
+dist
+lib
+solution
+temp
+*.sppkg
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# OSX
+.DS_Store
+
+# Visual Studio files
+.ntvs_analysis.dat
+.vs
+bin
+obj
+
+# Resx Generated Code
+*.resx.ts
+
+# Styles Generated Code
+*.scss.ts

samples/react-recaptcha/.yo-rc.json

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+{
+  "@microsoft/generator-sharepoint": {
+    "isCreatingSolution": true,
+    "environment": "spo",
+    "version": "1.8.2",
+    "libraryName": "react-recaptcha",
+    "libraryId": "e96b3b94-3ccb-4e61-be34-e7ef7d952cbd",
+    "packageManager": "npm",
+    "isDomainIsolated": false,
+    "componentType": "webpart"
+  }
+}

samples/react-recaptcha/README.md

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+# SPFx Google reCaptcha Sample
+
+## Summary
+
+This is sample webpart which showcase how to implement Google reCaptcha v2 in SPFx. CAPTCHA is used to prevent bots from automatically submitting forms with SPAM or other unwanted content.
+
+* Please refer this [link](https://www.c-sharpcorner.com/article/google-recaptcha-in-sharepoint-framework-webpartspfx/) to know 'How to build this from Scratch'
+
+![Webpart in action](screens/WebpartInAction.gif?raw=true "Webpart in action")
+
+## Used SharePoint Framework Version
+
+![drop](https://img.shields.io/badge/version-1.9.1-green.svg)
+
+## Applies to
+
+* [SharePoint Framework](http://dev.office.com/sharepoint/docs/spfx/sharepoint-framework-overview)
+* [Office 365 tenant](http://dev.office.com/sharepoint/docs/spfx/set-up-your-developer-tenant)
+
+
+## Prerequisites
+
+We would need to register our site which wants to use reCaptcha at Google. Follow below steps to get site key. 
+
+* Browse this [link](https://www.google.com/recaptcha/admin). 
+* Login with valid google account.
+* Provide a valid site label name.
+* Select reCAPTCHA v2, Select "I'm not a robot"
+* Add domain name, if you are using local workbench enter localhost. 
+* For using it in context of SharePoint, enter your tenant url https://yourorg.sharepoint.com
+* Accept terms and condition
+* Submit
+
+![Google recaptcha registration](screens/1.png?raw=true "Google recaptcha registration")
+
+On sucessfull submission, we get site key and secret key, copy site key somewhere we would be using it later. 
+
+![Google recaptcha registration](screens/2.png?raw=true "Google recaptcha registration")
+
+## Solution
+
+Solution|Author(s)
+--------|---------
+react-recaptcha | Siddharth Vaghasia([siddh_me](https://twitter.com/siddh_me/))
+
+## Version history
+
+Version|Date|Comments
+-------|----|--------
+1.0.0|Sept 26, 2019|Initial release
+
+## Disclaimer
+
+**THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.**
+
+---
+
+## Minimal Path to Awesome
+
+* Clone this repository
+* in the command line run:
+  * `npm install`
+  * `gulp serve`
+
+
+## Features
+
+This Web Part illustrates the following concepts on top of the SharePoint Framework:
+
+* Using react framework in SPFx webpart
+* Using [react-google-recaptcha](https://github.com/dozoisch/react-google-recaptcha) npm package in SPFx webpart
+* Validate if captcha is resolved before submiting data.
+
+<img src="https://telemetry.sharepointpnp.com/sp-dev-fx-webparts/samples/react-recaptcha" />

samples/react-recaptcha/config/config.json

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+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx-build/config.2.0.schema.json",
+  "version": "2.0",
+  "bundles": {
+    "recaptcha-web-part": {
+      "components": [
+        {
+          "entrypoint": "./lib/webparts/recaptcha/RecaptchaWebPart.js",
+          "manifest": "./src/webparts/recaptcha/RecaptchaWebPart.manifest.json"
+        }
+      ]
+    }
+  },
+  "externals": {},
+  "localizedResources": {
+    "RecaptchaWebPartStrings": "lib/webparts/recaptcha/loc/{locale}.js"
+  }
+}

samples/react-recaptcha/config/copy-assets.json

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+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx-build/copy-assets.schema.json",
+  "deployCdnPath": "temp/deploy"
+}

samples/react-recaptcha/config/deploy-azure-storage.json

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+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx-build/deploy-azure-storage.schema.json",
+  "workingDir": "./temp/deploy/",
+  "account": "<!-- STORAGE ACCOUNT NAME -->",
+  "container": "react-recaptcha",
+  "accessKey": "<!-- ACCESS KEY -->"
+}

samples/react-recaptcha/config/package-solution.json

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+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx-build/package-solution.schema.json",
+  "solution": {
+    "name": "react-recaptcha-client-side-solution",
+    "id": "e96b3b94-3ccb-4e61-be34-e7ef7d952cbd",
+    "version": "1.0.0.0",
+    "includeClientSideAssets": true,
+    "isDomainIsolated": false
+  },
+  "paths": {
+    "zippedPackage": "solution/react-recaptcha.sppkg"
+  }
+}

samples/react-recaptcha/config/serve.json

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+{
+  "$schema": "https://developer.microsoft.com/json-schemas/core-build/serve.schema.json",
+  "port": 4321,
+  "https": true,
+  "initialPage": "https://localhost:5432/workbench",
+  "api": {
+    "port": 5432,
+    "entryPath": "node_modules/@microsoft/sp-webpart-workbench/lib/api/"
+  }
+}

samples/react-recaptcha/config/write-manifests.json

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+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx-build/write-manifests.schema.json",
+  "cdnBasePath": "<!-- PATH TO CDN -->"
+}

samples/react-recaptcha/gulpfile.js

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+'use strict';
+
+const gulp = require('gulp');
+const build = require('@microsoft/sp-build-web');
+build.addSuppression(`Warning - [sass] The local CSS class 'ms-Grid' is not camelCase and will not be type-safe.`);
+
+build.initialize(gulp);

samples/react-recaptcha/package.json

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+{
+  "name": "react-recaptcha",
+  "version": "0.0.1",
+  "private": true,
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "scripts": {
+    "build": "gulp bundle",
+    "clean": "gulp clean",
+    "test": "gulp test"
+  },
+  "dependencies": {
+    "@microsoft/sp-core-library": "1.8.2",
+    "@microsoft/sp-lodash-subset": "1.8.2",
+    "@microsoft/sp-office-ui-fabric-core": "1.8.2",
+    "@microsoft/sp-property-pane": "1.8.2",
+    "@microsoft/sp-webpart-base": "1.8.2",
+    "@types/es6-promise": "0.0.33",
+    "@types/react": "16.7.22",
+    "@types/react-dom": "16.8.0",
+    "@types/react-google-recaptcha": "^1.1.0",
+    "@types/webpack-env": "1.13.1",
+    "office-ui-fabric-react": "6.143.0",
+    "react": "16.7.0",
+    "react-async-script": "^1.1.1",
+    "react-dom": "16.7.0",
+    "react-google-recaptcha": "^2.0.1"
+  },
+  "resolutions": {
+    "@types/react": "16.7.22"
+  },
+  "devDependencies": {
+    "@microsoft/sp-build-web": "1.8.2",
+    "@microsoft/sp-tslint-rules": "1.8.2",
+    "@microsoft/sp-module-interfaces": "1.8.2",
+    "@microsoft/sp-webpart-workbench": "1.8.2",
+    "@microsoft/rush-stack-compiler-2.9": "0.7.7",
+    "gulp": "~3.9.1",
+    "@types/chai": "3.4.34",
+    "@types/mocha": "2.2.38",
+    "ajv": "~5.2.2"
+  }
+}

samples/react-recaptcha/src/index.ts

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+// A file is required to be in the root of the /src directory by the TypeScript compiler

samples/react-recaptcha/src/webparts/recaptcha/RecaptchaWebPart.manifest.json

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+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx/client-side-web-part-manifest.schema.json",
+  "id": "200835ce-2963-400e-ae18-f556484c5fba",
+  "alias": "RecaptchaWebPart",
+  "componentType": "WebPart",
+
+  // The "*" signifies that the version should be taken from the package.json
+  "version": "*",
+  "manifestVersion": 2,
+
+  // If true, the component can only be installed on sites where Custom Script is allowed.
+  // Components that allow authors to embed arbitrary script code should set this to true.
+  // https://support.office.com/en-us/article/Turn-scripting-capabilities-on-or-off-1f2c515f-5d7e-448a-9fd7-835da935584f
+  "requiresCustomScript": false,
+  "supportedHosts": ["SharePointWebPart"],
+
+  "preconfiguredEntries": [{
+    "groupId": "5c03119e-3074-46fd-976b-c60198311f70", // Other
+    "group": { "default": "Other" },
+    "title": { "default": "recaptcha" },
+    "description": { "default": "This is sample webpart to showcase usage of reCaptcha in spfx webpart" },
+    "officeFabricIconFontName": "Page",
+    "properties": {
+      "description": "recaptcha"
+    }
+  }]
+}

samples/react-recaptcha/src/webparts/recaptcha/RecaptchaWebPart.ts

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+import * as React from 'react';
+import * as ReactDom from 'react-dom';
+import { Version } from '@microsoft/sp-core-library';
+import { BaseClientSideWebPart } from '@microsoft/sp-webpart-base';
+import {
+  IPropertyPaneConfiguration,
+  PropertyPaneTextField
+} from '@microsoft/sp-property-pane';
+
+import * as strings from 'RecaptchaWebPartStrings';
+import Recaptcha from './components/Recaptcha';
+import { IRecaptchaProps } from './components/IRecaptchaProps';
+
+export interface IRecaptchaWebPartProps {
+  description: string;
+}
+
+export default class RecaptchaWebPart extends BaseClientSideWebPart<IRecaptchaWebPartProps> {
+
+  public render(): void {
+    const element: React.ReactElement<IRecaptchaProps > = React.createElement(
+      Recaptcha,
+      {
+        description: this.properties.description
+      }
+    );
+
+    ReactDom.render(element, this.domElement);
+  }
+
+  protected onDispose(): void {
+    ReactDom.unmountComponentAtNode(this.domElement);
+  }
+
+  protected get dataVersion(): Version {
+    return Version.parse('1.0');
+  }
+
+  protected getPropertyPaneConfiguration(): IPropertyPaneConfiguration {
+    return {
+      pages: [
+        {
+          header: {
+            description: strings.PropertyPaneDescription
+          },
+          groups: [
+            {
+              groupName: strings.BasicGroupName,
+              groupFields: [
+                PropertyPaneTextField('description', {
+                  label: strings.DescriptionFieldLabel
+                })
+              ]
+            }
+          ]
+        }
+      ]
+    };
+  }
+}

samples/react-recaptcha/src/webparts/recaptcha/components/IRecaptchaProps.ts

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+export interface IRecaptchaProps {
+  description: string;
+}

samples/react-recaptcha/src/webparts/recaptcha/components/Recaptcha.module.scss

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+@import '~@microsoft/sp-office-ui-fabric-core/dist/sass/SPFabricCore.scss';
+
+.recaptcha {
+  .container {
+    max-width: 700px;
+    margin: 0px auto;
+    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.2), 0 25px 50px 0 rgba(0, 0, 0, 0.1);
+  }
+
+  .row {
+    @include ms-Grid-row;
+    @include ms-fontColor-white;
+    background-color: $ms-color-themeDark;
+    padding: 20px;
+  }
+
+  .column {
+    @include ms-Grid-col;
+    @include ms-lg10;
+    @include ms-xl8;
+    @include ms-xlPush2;
+    @include ms-lgPush1;
+  }
+
+  .title {
+    @include ms-font-xl;
+    @include ms-fontColor-white;
+  }
+
+  .subTitle {
+    @include ms-font-l;
+    @include ms-fontColor-white;
+  }
+
+  .description {
+    @include ms-font-l;
+    @include ms-fontColor-white;
+  }
+
+  .button {
+    // Our button
+    text-decoration: none;
+    height: 32px;
+
+    // Primary Button
+    min-width: 80px;
+    background-color: $ms-color-themePrimary;
+    border-color: $ms-color-themePrimary;
+    color: $ms-color-white;
+
+    // Basic Button
+    outline: transparent;
+    position: relative;
+    font-family: "Segoe UI WestEuropean","Segoe UI",-apple-system,BlinkMacSystemFont,Roboto,"Helvetica Neue",sans-serif;
+    -webkit-font-smoothing: antialiased;
+    font-size: $ms-font-size-m;
+    font-weight: $ms-font-weight-regular;
+    border-width: 0;
+    text-align: center;
+    cursor: pointer;
+    display: inline-block;
+    padding: 0 16px;
+
+    .label {
+      font-weight: $ms-font-weight-semibold;
+      font-size: $ms-font-size-m;
+      height: 32px;
+      line-height: 32px;
+      margin: 0 4px;
+      vertical-align: top;
+      display: inline-block;
+    }
+  }
+}

samples/react-recaptcha/src/webparts/recaptcha/components/Recaptcha.tsx

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+import * as React from 'react';
+import styles from './Recaptcha.module.scss';
+import { IRecaptchaProps } from './IRecaptchaProps';
+import { escape } from '@microsoft/sp-lodash-subset';
+import ReCAPTCHA from 'react-google-recaptcha';
+import * as ReactDom from 'react-dom';
+import { TextField, MaskedTextField,PrimaryButton,MessageBar, MessageBarType   } from 'office-ui-fabric-react';
+
+
+export default class Recaptcha extends React.Component<IRecaptchaProps, {}> {
+
+  public captcha:any;
+  public _messageContainer:HTMLElement = undefined;
+  
+  public render(): React.ReactElement<IRecaptchaProps> {
+    return (
+      <div className={ styles.recaptcha }>
+      <p>
+        <TextField label="Enter your name" styles={{ fieldGroup: { width: 300 } }} />
+        </p>
+        <ReCAPTCHA ref={ (el) => { this.captcha = el; } }
+        sitekey="6LeZV7oUAAAAALiIfCUnnrlXE0fYrcyvM9JHVN72"
+        onChange={this.onChange} />
+        <p>
+       <div id="messageContainer"   ref={(elm) => { this._messageContainer = elm; }}>
+        </div>
+        </p>
+
+        <PrimaryButton text="Submit"  onClick={() => this.buttonClicked()}   />
+      </div>
+    );
+  }
+
+  public buttonClicked(): void {
+    if(this.captcha.getValue())
+    {
+
+      ReactDom.unmountComponentAtNode(this._messageContainer);
+      const element2 = React.createElement(
+        MessageBar,
+        {
+          messageBarType:MessageBarType.success,
+          isMultiline:false,
+          dismissButtonAriaLabel:"Close"
+        },
+        "You data has been saved sucessfully"
+      );
+      //const camContainer = document.getElementById("camContainer")
+      ReactDom.render(element2, this._messageContainer);     
+    }
+    
+    else{
+      const element2 = React.createElement(
+        MessageBar,
+        {
+          messageBarType:MessageBarType.error,
+          isMultiline:false,
+          dismissButtonAriaLabel:"Close"
+        },
+        "Please select captcha."
+      );
+      //const camContainer = document.getElementById("camContainer")
+      ReactDom.render(element2, this._messageContainer);     
+    }
+  }
+
+  public onChange(value){
+    console.log("Captcha value:", value);
+  }
+}

samples/react-recaptcha/src/webparts/recaptcha/loc/en-us.js

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+define([], function() {
+  return {
+    "PropertyPaneDescription": "Description",
+    "BasicGroupName": "Group Name",
+    "DescriptionFieldLabel": "Description Field"
+  }
+});

samples/react-recaptcha/src/webparts/recaptcha/loc/mystrings.d.ts

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+declare interface IRecaptchaWebPartStrings {
+  PropertyPaneDescription: string;
+  BasicGroupName: string;
+  DescriptionFieldLabel: string;
+}
+
+declare module 'RecaptchaWebPartStrings' {
+  const strings: IRecaptchaWebPartStrings;
+  export = strings;
+}

samples/react-recaptcha/tsconfig.json

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+{
+  "extends": "./node_modules/@microsoft/rush-stack-compiler-2.9/includes/tsconfig-web.json",
+  "compilerOptions": {
+    "target": "es5",
+    "forceConsistentCasingInFileNames": true,
+    "module": "esnext",
+    "moduleResolution": "node",
+    "jsx": "react",
+    "declaration": true,
+    "sourceMap": true,
+    "experimentalDecorators": true,
+    "skipLibCheck": true,
+    "outDir": "lib",
+    "inlineSources": false,
+    "strictNullChecks": false,
+    "noUnusedLocals": false,
+    "typeRoots": [
+      "./node_modules/@types",
+      "./node_modules/@microsoft"
+    ],
+    "types": [
+      "es6-promise",
+      "webpack-env"
+    ],
+    "lib": [
+      "es5",
+      "dom",
+      "es2015.collection"
+    ]
+  },
+  "include": [
+    "src/**/*.ts"
+  ],
+  "exclude": [
+    "node_modules",
+    "lib"
+  ]
+}

samples/react-recaptcha/tslint.json

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+{
+  "extends": "@microsoft/sp-tslint-rules/base-tslint.json",
+  "rules": {
+    "class-name": false,
+    "export-name": false,
+    "forin": false,
+    "label-position": false,
+    "member-access": true,
+    "no-arg": false,
+    "no-console": false,
+    "no-construct": false,
+    "no-duplicate-variable": true,
+    "no-eval": false,
+    "no-function-expression": true,
+    "no-internal-module": true,
+    "no-shadowed-variable": true,
+    "no-switch-case-fall-through": true,
+    "no-unnecessary-semicolons": true,
+    "no-unused-expression": true,
+    "no-use-before-declare": true,
+    "no-with-statement": true,
+    "semicolon": true,
+    "trailing-comma": false,
+    "typedef": false,
+    "typedef-whitespace": false,
+    "use-named-parameter": true,
+    "variable-name": false,
+    "whitespace": false
+  }
+}