├── .github └── workflows │ └── nodejs.yml ├── .gitignore ├── CONTRIBUTING.md ├── LICENSE ├── README.md ├── dom-node.js ├── dom-node.test.js ├── jest.config.js ├── package-lock.json ├── package.json ├── serialize.js ├── serialize.test.js ├── subtree.js ├── subtree.test.js └── test ├── iframe.json ├── inlineIframe-false.html ├── inlineIframe-true.html ├── simple.html ├── simple.json ├── web-component.html └── web-component.json /.github/workflows/nodejs.yml: -------------------------------------------------------------------------------- 1 | name: Run tests 2 | 3 | on: [push, pull_request] 4 | 5 | jobs: 6 | build: 7 | 8 | runs-on: ubuntu-latest 9 | 10 | strategy: 11 | matrix: 12 | node-version: [10.x, 12.x, 13.x] 13 | 14 | steps: 15 | - uses: actions/checkout@v1 16 | - name: Use Node.js ${{ matrix.node-version }} 17 | uses: actions/setup-node@v1 18 | with: 19 | node-version: ${{ matrix.node-version }} 20 | - name: npm install, build, and test 21 | run: | 22 | npm ci 23 | npm test 24 | env: 25 | CI: true 26 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Logs 2 | logs 3 | *.log 4 | npm-debug.log* 5 | yarn-debug.log* 6 | yarn-error.log* 7 | lerna-debug.log* 8 | 9 | # Diagnostic reports (https://nodejs.org/api/report.html) 10 | report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json 11 | 12 | # Runtime data 13 | pids 14 | *.pid 15 | *.seed 16 | *.pid.lock 17 | 18 | # Directory for instrumented libs generated by jscoverage/JSCover 19 | lib-cov 20 | 21 | # Coverage directory used by tools like istanbul 22 | coverage 23 | *.lcov 24 | 25 | # nyc test coverage 26 | .nyc_output 27 | 28 | # Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files) 29 | .grunt 30 | 31 | # Bower dependency directory (https://bower.io/) 32 | bower_components 33 | 34 | # node-waf configuration 35 | .lock-wscript 36 | 37 | # Compiled binary addons (https://nodejs.org/api/addons.html) 38 | build/Release 39 | 40 | # Dependency directories 41 | node_modules/ 42 | jspm_packages/ 43 | 44 | # TypeScript v1 declaration files 45 | typings/ 46 | 47 | # TypeScript cache 48 | *.tsbuildinfo 49 | 50 | # Optional npm cache directory 51 | .npm 52 | 53 | # Optional eslint cache 54 | .eslintcache 55 | 56 | # Microbundle cache 57 | .rpt2_cache/ 58 | .rts2_cache_cjs/ 59 | .rts2_cache_es/ 60 | .rts2_cache_umd/ 61 | 62 | # Optional REPL history 63 | .node_repl_history 64 | 65 | # Output of 'npm pack' 66 | *.tgz 67 | 68 | # Yarn Integrity file 69 | .yarn-integrity 70 | 71 | # dotenv environment variables file 72 | .env 73 | .env.test 74 | 75 | # parcel-bundler cache (https://parceljs.org/) 76 | .cache 77 | 78 | # Next.js build output 79 | .next 80 | 81 | # Nuxt.js build / generate output 82 | .nuxt 83 | dist 84 | 85 | # Gatsby files 86 | .cache/ 87 | # Comment in the public line in if your project uses Gatsby and *not* Next.js 88 | # https://nextjs.org/blog/next-9-1#public-directory-support 89 | # public 90 | 91 | # vuepress build output 92 | .vuepress/dist 93 | 94 | # Serverless directories 95 | .serverless/ 96 | 97 | # FuseBox cache 98 | .fusebox/ 99 | 100 | # DynamoDB Local files 101 | .dynamodb/ 102 | 103 | # TernJS port file 104 | .tern-port 105 | node_modules 106 | -------------------------------------------------------------------------------- /CONTRIBUTING.md: -------------------------------------------------------------------------------- 1 | # How to Contribute 2 | 3 | We'd love to accept your patches and contributions to this project. There are 4 | just a few small guidelines you need to follow. 5 | 6 | ## How to set up your local environment 7 | 8 | With [node.js](https://nodejs.org) installed, follow the steps below or run the following commands: 9 | 10 | 1. Get a local copy of this repository 11 | 2. Install the dependencies with `npm install` 12 | 13 | ``` 14 | git clone https://github.com/GoogleChromeLabs/dom2html.git 15 | cd dom2html 16 | npm install 17 | ``` 18 | 19 | ## Writing and running tests 20 | 21 | The tests are written with [Jest](https://jestjs.io/) and can be found in the `*.test.js` files, named like the code they test (e.g. `serialize.js` functionality is tested in the `serialize.test.js` file). 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The text should be enclosed in the appropriate 185 | comment syntax for the file format. We also recommend that a 186 | file or class name and description of purpose be included on the 187 | same "printed page" as the copyright notice for easier 188 | identification within third-party archives. 189 | 190 | Copyright 2019 Google LLC 191 | 192 | Licensed under the Apache License, Version 2.0 (the "License"); 193 | you may not use this file except in compliance with the License. 194 | You may obtain a copy of the License at 195 | 196 | http://www.apache.org/licenses/LICENSE-2.0 197 | 198 | Unless required by applicable law or agreed to in writing, software 199 | distributed under the License is distributed on an "AS IS" BASIS, 200 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 201 | See the License for the specific language governing permissions and 202 | limitations under the License. -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # dom2html 2 | Serializes a dom-like JSON tree into HTML. 3 | This is helpful if you end up with a DOM-like JSON object and need to serialize it to HTML. 4 | An example use case is using [puppeteer](https://pptr.dev/) to get the DOM tree from a page 5 | and wanting to recreate the flattened HTML including shadow roots, and by default, the contents of iframes. 6 | 7 | ## Usage 8 | 9 | ```javascript 10 | const serialize = require('dom2html'); 11 | const jsonDOM = require('./dom.json'); 12 | 13 | console.log(serialize(jsonDOM, true, 'all')); 14 | ``` 15 | 16 | ## Parameters 17 | serialize accepts three inputs 18 | ```javascript 19 | serialize(jsonDOM, includeIframes, domErrorOutput) 20 | ``` 21 | *jsonDom* is the nodelke JSON tree 22 | *includeIframes* is a boolean flag to define if you want to serialize iframe content, **optional, defaults to true** 23 | *domErrorOutput* is a string that defines where dom2html outputs errors if it cannot serialzie a node, 'all' outputs to console & inserts a html comment in the outputted html, 'console' only outputs to console.log(), 'comments' only outputs to html comments and silent outputs to neither. **optional, defaults to all** 24 | 25 | ## An example 26 | 27 | Let's say we have this JSON representation of a webpage: 28 | 29 | ```json 30 | { 31 | "nodeId": 1, 32 | "backendNodeId": 3, 33 | "nodeType": 9, 34 | "nodeName": "#document", 35 | "localName": "", 36 | "nodeValue": "", 37 | "childNodeCount": 2, 38 | "children": [{ 39 | "nodeId": 2, 40 | "parentId": 1, 41 | "backendNodeId": 8, 42 | "nodeType": 10, 43 | "nodeName": "html", 44 | "localName": "", 45 | "nodeValue": "", 46 | "publicId": "", 47 | "systemId": "" 48 | }, { 49 | "nodeId": 3, 50 | "parentId": 1, 51 | "backendNodeId": 9, 52 | "nodeType": 1, 53 | "nodeName": "HTML", 54 | "localName": "html", 55 | "nodeValue": "", 56 | "childNodeCount": 2, 57 | "children": [{ 58 | "nodeId": 4, 59 | "parentId": 3, 60 | "backendNodeId": 10, 61 | "nodeType": 1, 62 | "nodeName": "HEAD", 63 | "localName": "head", 64 | "nodeValue": "", 65 | "childNodeCount": 1, 66 | "children": [{ 67 | "nodeId": 5, 68 | "parentId": 4, 69 | "backendNodeId": 11, 70 | "nodeType": 1, 71 | "nodeName": "STYLE", 72 | "localName": "style", 73 | "nodeValue": "", 74 | "childNodeCount": 1, 75 | "children": [{ 76 | "nodeId": 6, 77 | "parentId": 5, 78 | "backendNodeId": 12, 79 | "nodeType": 3, 80 | "nodeName": "#text", 81 | "localName": "", 82 | "nodeValue": "\n h1 { color: red; }\n " 83 | }], 84 | "attributes": [] 85 | }], 86 | "attributes": [] 87 | }, { 88 | "nodeId": 7, 89 | "parentId": 3, 90 | "backendNodeId": 13, 91 | "nodeType": 1, 92 | "nodeName": "BODY", 93 | "localName": "body", 94 | "nodeValue": "", 95 | "childNodeCount": 5, 96 | "children": [{ 97 | "nodeId": 8, 98 | "parentId": 7, 99 | "backendNodeId": 4, 100 | "nodeType": 1, 101 | "nodeName": "H1", 102 | "localName": "h1", 103 | "nodeValue": "", 104 | "childNodeCount": 1, 105 | "children": [{ 106 | "nodeId": 9, 107 | "parentId": 8, 108 | "backendNodeId": 14, 109 | "nodeType": 3, 110 | "nodeName": "#text", 111 | "localName": "", 112 | "nodeValue": "Hello World!" 113 | }], 114 | "attributes": [] 115 | }, { 116 | "nodeId": 10, 117 | "parentId": 7, 118 | "backendNodeId": 5, 119 | "nodeType": 1, 120 | "nodeName": "P", 121 | "localName": "p", 122 | "nodeValue": "", 123 | "childNodeCount": 1, 124 | "children": [{ 125 | "nodeId": 11, 126 | "parentId": 10, 127 | "backendNodeId": 15, 128 | "nodeType": 3, 129 | "nodeName": "#text", 130 | "localName": "", 131 | "nodeValue": "This is some content." 132 | }], 133 | "attributes": [] 134 | }, { 135 | "nodeId": 12, 136 | "parentId": 7, 137 | "backendNodeId": 16, 138 | "nodeType": 1, 139 | "nodeName": "P", 140 | "localName": "p", 141 | "nodeValue": "", 142 | "childNodeCount": 1, 143 | "children": [{ 144 | "nodeId": 13, 145 | "parentId": 12, 146 | "backendNodeId": 6, 147 | "nodeType": 1, 148 | "nodeName": "IMG", 149 | "localName": "img", 150 | "nodeValue": "", 151 | "childNodeCount": 0, 152 | "children": [], 153 | "attributes": ["src", "http://placekitten.com/200/300", "alt", "Some image"] 154 | }], 155 | "attributes": [] 156 | }, { 157 | "nodeId": 14, 158 | "parentId": 7, 159 | "backendNodeId": 7, 160 | "nodeType": 1, 161 | "nodeName": "P", 162 | "localName": "p", 163 | "nodeValue": "", 164 | "childNodeCount": 1, 165 | "children": [{ 166 | "nodeId": 15, 167 | "parentId": 14, 168 | "backendNodeId": 17, 169 | "nodeType": 3, 170 | "nodeName": "#text", 171 | "localName": "", 172 | "nodeValue": "Data-Attributes!" 173 | }], 174 | "attributes": ["data-test", "works"] 175 | }, { 176 | "nodeId": 16, 177 | "parentId": 7, 178 | "backendNodeId": 18, 179 | "nodeType": 1, 180 | "nodeName": "SCRIPT", 181 | "localName": "script", 182 | "nodeValue": "", 183 | "childNodeCount": 1, 184 | "children": [{ 185 | "nodeId": 17, 186 | "parentId": 16, 187 | "backendNodeId": 19, 188 | "nodeType": 3, 189 | "nodeName": "#text", 190 | "localName": "", 191 | "nodeValue": " window.title = 'Hello world!' " 192 | }], 193 | "attributes": [] 194 | }], 195 | "attributes": [] 196 | }], 197 | "attributes": ["lang", "en"], 198 | "frameId": "D46CBAE99B5CABE7F1FF6DDEE269E6A6" 199 | }], 200 | "documentURL": "http://test.local/test-simple.html", 201 | "baseURL": "http://test.local/test-simple.html", 202 | "xmlVersion": "" 203 | } 204 | ``` 205 | 206 | and we want to get the HTML representation: 207 | 208 | ```html 209 | 210 | 211 | 214 | 215 | 216 |

Hello World!

217 |

This is some content.

218 |

Some image

219 |

Data-Attributes!

220 | 221 | 222 | 223 | ``` 224 | 225 | For this we can use the following code: 226 | 227 | ```javascript 228 | const serialize = require('dom2html'); 229 | const jsonDOM = require('./dom.json'); 230 | 231 | console.log(serialize(jsonDOM)); 232 | ``` 233 | 234 | ## Prevent -------------------------------------------------------------------------------- /test/inlineIframe-true.html: -------------------------------------------------------------------------------- 1 | Test -------------------------------------------------------------------------------- /test/simple.html: -------------------------------------------------------------------------------- 1 |

Hello World!

This is some content.

Some image

Data-Attributes!

-------------------------------------------------------------------------------- /test/simple.json: -------------------------------------------------------------------------------- 1 | { 2 | "nodeId": 1, 3 | "backendNodeId": 3, 4 | "nodeType": 9, 5 | "nodeName": "#document", 6 | "localName": "", 7 | "nodeValue": "", 8 | "childNodeCount": 2, 9 | "children": [{ 10 | "nodeId": 2, 11 | "parentId": 1, 12 | "backendNodeId": 8, 13 | "nodeType": 10, 14 | "nodeName": "html", 15 | "localName": "", 16 | "nodeValue": "", 17 | "publicId": "", 18 | "systemId": "" 19 | }, { 20 | "nodeId": 3, 21 | "parentId": 1, 22 | "backendNodeId": 9, 23 | "nodeType": 1, 24 | "nodeName": "HTML", 25 | "localName": "html", 26 | "nodeValue": "", 27 | "childNodeCount": 2, 28 | "children": [{ 29 | "nodeId": 4, 30 | "parentId": 3, 31 | "backendNodeId": 10, 32 | "nodeType": 1, 33 | "nodeName": "HEAD", 34 | "localName": "head", 35 | "nodeValue": "", 36 | "childNodeCount": 1, 37 | "children": [{ 38 | "nodeId": 5, 39 | "parentId": 4, 40 | "backendNodeId": 11, 41 | "nodeType": 1, 42 | "nodeName": "STYLE", 43 | "localName": "style", 44 | "nodeValue": "", 45 | "childNodeCount": 1, 46 | "children": [{ 47 | "nodeId": 6, 48 | "parentId": 5, 49 | "backendNodeId": 12, 50 | "nodeType": 3, 51 | "nodeName": "#text", 52 | "localName": "", 53 | "nodeValue": "\n h1 { color: red; }\n " 54 | }], 55 | "attributes": [] 56 | }], 57 | "attributes": [] 58 | }, { 59 | "nodeId": 7, 60 | "parentId": 3, 61 | "backendNodeId": 13, 62 | "nodeType": 1, 63 | "nodeName": "BODY", 64 | "localName": "body", 65 | "nodeValue": "", 66 | "childNodeCount": 5, 67 | "children": [{ 68 | "nodeId": 8, 69 | "parentId": 7, 70 | "backendNodeId": 4, 71 | "nodeType": 1, 72 | "nodeName": "H1", 73 | "localName": "h1", 74 | "nodeValue": "", 75 | "childNodeCount": 1, 76 | "children": [{ 77 | "nodeId": 9, 78 | "parentId": 8, 79 | "backendNodeId": 14, 80 | "nodeType": 3, 81 | "nodeName": "#text", 82 | "localName": "", 83 | "nodeValue": "Hello World!" 84 | }], 85 | "attributes": [] 86 | }, { 87 | "nodeId": 10, 88 | "parentId": 7, 89 | "backendNodeId": 5, 90 | "nodeType": 1, 91 | "nodeName": "P", 92 | "localName": "p", 93 | "nodeValue": "", 94 | "childNodeCount": 1, 95 | "children": [{ 96 | "nodeId": 11, 97 | "parentId": 10, 98 | "backendNodeId": 15, 99 | "nodeType": 3, 100 | "nodeName": "#text", 101 | "localName": "", 102 | "nodeValue": "This is some content." 103 | }], 104 | "attributes": [] 105 | }, { 106 | "nodeId": 12, 107 | "parentId": 7, 108 | "backendNodeId": 16, 109 | "nodeType": 1, 110 | "nodeName": "P", 111 | "localName": "p", 112 | "nodeValue": "", 113 | "childNodeCount": 1, 114 | "children": [{ 115 | "nodeId": 13, 116 | "parentId": 12, 117 | "backendNodeId": 6, 118 | "nodeType": 1, 119 | "nodeName": "IMG", 120 | "localName": "img", 121 | "nodeValue": "", 122 | "childNodeCount": 0, 123 | "children": [], 124 | "attributes": ["src", "http://placekitten.com/200/300", "alt", "Some image"] 125 | }], 126 | "attributes": [] 127 | }, { 128 | "nodeId": 14, 129 | "parentId": 7, 130 | "backendNodeId": 7, 131 | "nodeType": 1, 132 | "nodeName": "P", 133 | "localName": "p", 134 | "nodeValue": "", 135 | "childNodeCount": 1, 136 | "children": [{ 137 | "nodeId": 15, 138 | "parentId": 14, 139 | "backendNodeId": 17, 140 | "nodeType": 3, 141 | "nodeName": "#text", 142 | "localName": "", 143 | "nodeValue": "Data-Attributes!" 144 | }], 145 | "attributes": ["data-test", "works"] 146 | }, { 147 | "nodeId": 16, 148 | "parentId": 7, 149 | "backendNodeId": 18, 150 | "nodeType": 1, 151 | "nodeName": "SCRIPT", 152 | "localName": "script", 153 | "nodeValue": "", 154 | "childNodeCount": 1, 155 | "children": [{ 156 | "nodeId": 17, 157 | "parentId": 16, 158 | "backendNodeId": 19, 159 | "nodeType": 3, 160 | "nodeName": "#text", 161 | "localName": "", 162 | "nodeValue": "\n window.title = 'Hello world!'\n " 163 | }], 164 | "attributes": [] 165 | } 166 | ], 167 | "attributes": [] 168 | }, { 169 | "nodeId": 17, 170 | "parentId": 3, 171 | "backendNodeId": 18, 172 | "nodeType": 1, 173 | "nodeName": "BODY", 174 | "localName": "body", 175 | "nodeValue": "", 176 | "children": [], 177 | "attributes": [] 178 | }], 179 | "attributes": ["lang", "en"], 180 | "frameId": "D46CBAE99B5CABE7F1FF6DDEE269E6A6" 181 | }], 182 | "documentURL": "http://test.local/test-simple.html", 183 | "baseURL": "http://test.local/test-simple.html", 184 | "xmlVersion": "" 185 | } -------------------------------------------------------------------------------- /test/web-component.html: -------------------------------------------------------------------------------- 1 |

Here is the projected content: Hello Light DOM :)

 -------------------------------------------------------------------------------- /test/web-component.json: -------------------------------------------------------------------------------- 1 | { 2 | "nodeId": 1, 3 | "backendNodeId": 3, 4 | "nodeType": 9, 5 | "nodeName": "#document", 6 | "localName": "", 7 | "nodeValue": "", 8 | "childNodeCount": 2, 9 | "children": [{ 10 | "nodeId": 2, 11 | "parentId": 1, 12 | "backendNodeId": 5, 13 | "nodeType": 10, 14 | "nodeName": "html", 15 | "localName": "", 16 | "nodeValue": "", 17 | "publicId": "", 18 | "systemId": "" 19 | }, { 20 | "nodeId": 3, 21 | "parentId": 1, 22 | "backendNodeId": 6, 23 | "nodeType": 1, 24 | "nodeName": "HTML", 25 | "localName": "html", 26 | "nodeValue": "", 27 | "childNodeCount": 2, 28 | "children": [{ 29 | "nodeId": 4, 30 | "parentId": 3, 31 | "backendNodeId": 7, 32 | "nodeType": 1, 33 | "nodeName": "HEAD", 34 | "localName": "head", 35 | "nodeValue": "", 36 | "childNodeCount": 1, 37 | "children": [{ 38 | "nodeId": 5, 39 | "parentId": 4, 40 | "backendNodeId": 8, 41 | "nodeType": 1, 42 | "nodeName": "SCRIPT", 43 | "localName": "script", 44 | "nodeValue": "", 45 | "childNodeCount": 1, 46 | "children": [{ 47 | "nodeId": 6, 48 | "parentId": 5, 49 | "backendNodeId": 9, 50 | "nodeType": 3, 51 | "nodeName": "#text", 52 | "localName": "", 53 | "nodeValue": "\n class MySlottedContent extends HTMLElement {\n constructor() {\n super();\n \n this.attachShadow({ mode: 'open' });\n }\n \n connectedCallback() {\n let p = document.createElement('p');\n p.innerHTML = 'Here is the projected content: ';\n this.shadowRoot.appendChild(p);\n }\n }\n\n window.customElements.define('my-slotted-content', MySlottedContent);\n " 54 | }], 55 | "attributes": [] 56 | }], 57 | "attributes": [] 58 | }, { 59 | "nodeId": 7, 60 | "parentId": 3, 61 | "backendNodeId": 10, 62 | "nodeType": 1, 63 | "nodeName": "BODY", 64 | "localName": "body", 65 | "nodeValue": "", 66 | "childNodeCount": 1, 67 | "children": [{ 68 | "nodeId": 8, 69 | "parentId": 7, 70 | "backendNodeId": 11, 71 | "nodeType": 1, 72 | "nodeName": "MY-SLOTTED-CONTENT", 73 | "localName": "my-slotted-content", 74 | "nodeValue": "", 75 | "childNodeCount": 1, 76 | "children": [{ 77 | "nodeId": 13, 78 | "parentId": 8, 79 | "backendNodeId": 15, 80 | "nodeType": 3, 81 | "nodeName": "#text", 82 | "localName": "", 83 | "nodeValue": "Hello Light DOM :)" 84 | }], 85 | "attributes": [], 86 | "shadowRoots": [{ 87 | "nodeId": 9, 88 | "backendNodeId": 12, 89 | "nodeType": 11, 90 | "nodeName": "#document-fragment", 91 | "localName": "", 92 | "nodeValue": "", 93 | "childNodeCount": 1, 94 | "children": [{ 95 | "nodeId": 10, 96 | "parentId": 9, 97 | "backendNodeId": 4, 98 | "nodeType": 1, 99 | "nodeName": "P", 100 | "localName": "p", 101 | "nodeValue": "", 102 | "childNodeCount": 2, 103 | "children": [{ 104 | "nodeId": 11, 105 | "parentId": 10, 106 | "backendNodeId": 13, 107 | "nodeType": 3, 108 | "nodeName": "#text", 109 | "localName": "", 110 | "nodeValue": "Here is the projected content: " 111 | }, { 112 | "nodeId": 12, 113 | "parentId": 10, 114 | "backendNodeId": 14, 115 | "nodeType": 1, 116 | "nodeName": "SLOT", 117 | "localName": "slot", 118 | "nodeValue": "", 119 | "childNodeCount": 0, 120 | "children": [], 121 | "attributes": [], 122 | "distributedNodes": [{ 123 | "nodeType": 3, 124 | "nodeName": "#text", 125 | "backendNodeId": 15 126 | }] 127 | }], 128 | "attributes": [] 129 | }], 130 | "shadowRootType": "open" 131 | }] 132 | }], 133 | "attributes": [] 134 | }], 135 | "attributes": ["lang", "en"], 136 | "frameId": "C8FF37DC4F8DB408E342A3BD168804CA" 137 | }], 138 | "documentURL": "file:///Users/martinsplitt/code/experimental-render/test.html", 139 | "baseURL": "file:///Users/martinsplitt/code/experimental-render/test.html", 140 | "xmlVersion": "" 141 | } --------------------------------------------------------------------------------