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Hide and replace sensitive data on the chat interface with a user-friendly UI.
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// ==UserScript==
// @name Deepseek Privacy
// @namespace https://github.com/landifrancesco/Deepseek-Privacy
// @version 1
// @description Hide and replace sensitive data on the chat interface with a user-friendly UI.
// @author Francesco Landi
// @match https://chat.deepseek.com/a/chat/s/*
// @grant GM_addStyle
// @license GNU General Public License v3.0
// ==/UserScript==
(function () {
'use strict';
// Load saved sensitive data from localStorage
let sensitiveData = JSON.parse(localStorage.getItem('sensitiveData')) || {};
let caseSensitive = JSON.parse(localStorage.getItem('caseSensitive')) || false;
// Function to replace sensitive data
function replaceSensitiveData() {
const walker = document.createTreeWalker(document.body, NodeFilter.SHOW_TEXT);
let node;
while (node = walker.nextNode()) {
// Skip if the node is within the popup
if (node.parentElement.closest('#sensitiveDataPopup')) continue;
let text = node.nodeValue;
// Replace each sensitive word
for (const [word, replacement] of Object.entries(sensitiveData)) {
const regex = new RegExp(word, caseSensitive ? "g" : "gi"); // Use "g" or "gi" based on caseSensitive
text = text.replace(regex, replacement);
}
node.nodeValue = text;
}
}
// Function to detect the page theme
function detectTheme() {
const bgColor = window.getComputedStyle(document.body).backgroundColor;
const rgb = bgColor.match(/\d+/g);
if (rgb) {
const brightness = (rgb[0] * 299 + rgb[1] * 587 + rgb[2] * 114) / 1000;
return brightness > 128 ? 'light' : 'dark';
}
return 'light'; // Default to light theme if detection fails
}
// Function to create the lock icon and popup UI
function createUI() {
const theme = detectTheme();
const isDarkTheme = theme === 'dark';
// Add styles for the lock icon and popup
GM_addStyle(`
#sensitiveDataLock {
position: fixed;
top: 10px;
right: 10px;
z-index: 1000;
cursor: pointer;
font-size: 24px;
color: ${isDarkTheme ? '#fff' : '#555'};
}
#sensitiveDataPopup {
display: none;
position: fixed;
top: 50px;
right: 10px;
z-index: 1000;
background: ${isDarkTheme ? '#333' : '#fff'};
border: 1px solid ${isDarkTheme ? '#555' : '#ccc'};
padding: 10px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
width: 300px;
color: ${isDarkTheme ? '#fff' : '#000'};
}
#sensitiveDataPopup input {
width: 100%;
margin-bottom: 10px;
padding: 5px;
background: ${isDarkTheme ? '#444' : '#fff'};
color: ${isDarkTheme ? '#fff' : '#000'};
border: 1px solid ${isDarkTheme ? '#555' : '#ccc'};
}
#sensitiveDataPopup button {
padding: 5px 10px;
margin-right: 5px;
background: ${isDarkTheme ? '#555' : '#eee'};
color: ${isDarkTheme ? '#fff' : '#000'};
border: 1px solid ${isDarkTheme ? '#666' : '#ccc'};
cursor: pointer;
}
#sensitiveDataList {
max-height: 200px;
overflow-y: auto;
margin-bottom: 10px;
}
.case-sensitive-container {
display: flex;
align-items: center;
margin-bottom: 10px;
}
.case-sensitive-container label {
margin-left: 5px;
}
`);
// Create the lock icon
const lockIcon = document.createElement('div');
lockIcon.id = 'sensitiveDataLock';
lockIcon.innerHTML = '🔒';
document.body.appendChild(lockIcon);
// Create the popup
const popup = document.createElement('div');
popup.id = 'sensitiveDataPopup';
popup.innerHTML = `
<h3>Sensitive Data Hider</h3>
<input id="sensitiveWordInput" placeholder="Sensitive Word">
<input id="replacementInput" placeholder="Replacement">
<div class="case-sensitive-container">
<input type="checkbox" id="caseSensitiveCheckbox">
<label for="caseSensitiveCheckbox">Case Sensitive</label>
</div>
<button id="addSensitiveData">Add</button>
<div id="sensitiveDataList"></div>
<button id="closePopup">Close</button>
`;
document.body.appendChild(popup);
// Toggle popup visibility
lockIcon.addEventListener('click', () => {
popup.style.display = popup.style.display === 'block' ? 'none' : 'block';
updateSensitiveDataList();
// Update the checkbox state when the popup is opened
document.getElementById('caseSensitiveCheckbox').checked = caseSensitive;
});
// Close popup
document.getElementById('closePopup').addEventListener('click', () => {
popup.style.display = 'none';
});
// Add new sensitive word and replacement
document.getElementById('addSensitiveData').addEventListener('click', () => {
const word = document.getElementById('sensitiveWordInput').value.trim();
const replacement = document.getElementById('replacementInput').value.trim();
if (word && replacement) {
sensitiveData[word] = replacement;
localStorage.setItem('sensitiveData', JSON.stringify(sensitiveData));
updateSensitiveDataList();
replaceSensitiveData();
document.getElementById('sensitiveWordInput').value = '';
document.getElementById('replacementInput').value = '';
}
});
// Update the list of sensitive words and replacements
function updateSensitiveDataList() {
const list = document.getElementById('sensitiveDataList');
list.innerHTML = Object.entries(sensitiveData)
.map(([word, replacement]) => `
<div>
<strong>${word}</strong> → ${replacement}
<button data-word="${word}" class="removeButton">Remove</button>
</div>
`)
.join('');
// Add event listeners to the remove buttons
document.querySelectorAll('.removeButton').forEach(button => {
button.addEventListener('click', () => {
const word = button.getAttribute('data-word');
removeSensitiveData(word);
});
});
}
// Remove a sensitive word and replacement
function removeSensitiveData(word) {
delete sensitiveData[word];
localStorage.setItem('sensitiveData', JSON.stringify(sensitiveData));
updateSensitiveDataList();
replaceSensitiveData();
}
// Toggle case sensitivity
document.getElementById('caseSensitiveCheckbox').addEventListener('change', (event) => {
caseSensitive = event.target.checked;
localStorage.setItem('caseSensitive', JSON.stringify(caseSensitive));
replaceSensitiveData(); // Reapply replacements with the new case sensitivity setting
});
// Initialize the checkbox state
document.getElementById('caseSensitiveCheckbox').checked = caseSensitive;
}
// Initialize the UI and replace sensitive data
createUI();
replaceSensitiveData();
// Observe DOM changes for dynamic content
const observer = new MutationObserver(replaceSensitiveData);
observer.observe(document.body, { childList: true, subtree: true });
})();