├── LICENSE
├── README.md
├── content_script.js
├── icon
    └── 128x128.png
└── manifest.json


/LICENSE:
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 1 | MIT License
 2 | 
 3 | Copyright (c) 2020 Enguerran Gillier
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


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/README.md:
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1 | # postMessage-logger
2 | Simple "postMessage logger" Chrome extension
3 | 
4 | Simple logger for Messages received by a webpage (https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage)
5 | Open the console (F12) to view the message logs
6 | 
7 | Source code of the extension available at https://github.com/opnsec/postMessage-logger


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/content_script.js:
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1 | function logMessage(event) {
2 |   try {
3 |     console.log("Message received by: " + document.location.href, "\norigin: " + event.origin + " source: ", event.source, "\ndata:", event.data)
4 |   } catch (error) {
5 |     // If the source window is cross-origin, you can't log it here
6 |     console.log("Message received by: " + document.location.href, "\norigin: " + event.origin + " source is cross-origin", "\ndata:", event.data)
7 |   }
8 | }
9 | addEventListener("message", logMessage)


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/icon/128x128.png:
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https://raw.githubusercontent.com/opnsec/postMessage-logger/09ee3bcc0bdba1efc6f0ab03d6ff75b7482c0259/icon/128x128.png


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/manifest.json:
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 1 | {
 2 |   "name": "postMessage logger",
 3 |   "description": "Simple postMessage logger",
 4 |   "version": "1.0",
 5 |   "content_scripts": [
 6 |     {
 7 |       "matches": [
 8 |         "<all_urls>"
 9 |       ],
10 |       "run_at": "document_start",
11 |       "all_frames": true,
12 |       "js": [
13 |         "content_script.js"
14 |       ]
15 |     }
16 |   ],
17 |   "icons": {
18 |     "128": "icon/128x128.png"
19 |   },
20 |   "manifest_version": 2
21 | }


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