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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,178 @@ | ||
| /** | ||
| * Teampass - a collaborative passwords manager. | ||
| * --- | ||
| * This file is part of the TeamPass project. | ||
| * | ||
| * TeamPass is free software: you can redistribute it and/or modify it | ||
| * under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, version 3 of the License. | ||
| * | ||
| * TeamPass is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <https://www.gnu.org/licenses/>. | ||
| * | ||
| * Certain components of this file may be under different licenses. For | ||
| * details, see the `licenses` directory or individual file headers. | ||
| * --- | ||
| * @file secure-clipboard-cleaner.js | ||
| * @author Nils Laumaillé ([email protected]) | ||
| * @copyright 2009-2024 Teampass.net | ||
| * @license GPL-3.0 | ||
| * @see https://www.teampass.net | ||
| */ | ||
|
|
||
| class ClipboardCleaner { | ||
| constructor(duration) { | ||
| this.duration = duration * 1000; // Convert to milliseconds | ||
| this.clearTimeout = null; | ||
| this.clearingTime = null; | ||
| this.originalText = ''; | ||
| this.maxRetries = 8; | ||
| this.retryDelay = 1000; // 1 second between each attempt | ||
| this.retryDuration = this.maxRetries * this.retryDelay; | ||
| this.manualClearButton = null; | ||
| } | ||
|
|
||
| scheduleClearing(onSuccess, onError) { | ||
| this.clearingTime = Date.now() + this.duration; | ||
|
|
||
| this.clearTimeout = setTimeout(() => { | ||
| this.attemptClearing(this.maxRetries, onSuccess, onError); | ||
| }, this.duration); | ||
| } | ||
|
|
||
| async attemptClearing(retriesLeft, onSuccess, onError) { | ||
| try { | ||
| await navigator.clipboard.writeText(''); | ||
| if (onSuccess) { | ||
| // Remove existing messages | ||
| toastr.remove(); | ||
|
|
||
| // Save clipboard status as safe | ||
| localStorage.setItem('clipboardStatus', JSON.stringify({ | ||
| status: 'safe', | ||
| timestamp: Date.now() | ||
| })); | ||
|
|
||
| // Call success callback | ||
| onSuccess(); | ||
| } | ||
| } catch (error) { | ||
| if (retriesLeft === this.maxRetries) { | ||
| // Show a message indicating the initial failure | ||
| toastr.warning( | ||
| `${TRANSLATIONS_CLIPBOARD.clipboard_clearing_failed}`, | ||
| '', { | ||
| timeOut: this.retryDuration, | ||
| positionClass: 'toast-bottom-right', | ||
| progressBar: true | ||
| } | ||
| ); | ||
| } | ||
|
|
||
| if (retriesLeft > 0) { | ||
| // Retry clearing after a delay | ||
| setTimeout(() => { | ||
| this.attemptClearing(retriesLeft - 1, onSuccess, onError); | ||
| }, this.retryDelay); | ||
| } else { | ||
| // If all attempts fail, show the button | ||
| this.useFallbackApproach(onSuccess, onError); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| useFallbackApproach(onSuccess, onError) { | ||
| try { | ||
| toastr.remove(); // Remove all notifications | ||
|
|
||
| // Mark clipboard as unsafe | ||
| this.markClipboardAsUnsafe(); | ||
|
|
||
| // Create an HTML container for the message and button | ||
| const container = document.createElement('div'); | ||
| container.innerHTML = ` | ||
| <div> | ||
| <p>${TRANSLATIONS_CLIPBOARD.clipboard_unsafe}</p> | ||
| <button id="manual-clear-btn" class="btn btn-warning">${TRANSLATIONS_CLIPBOARD.clipboard_clear_now}</button> | ||
| </div> | ||
| `; | ||
|
|
||
| // Show the notification with the button | ||
| toastr.warning(container.innerHTML, '', { | ||
| timeOut: 0, // Keep the toastr active until an action | ||
| positionClass: 'toast-bottom-right', | ||
| progressBar: false | ||
| }); | ||
|
|
||
| // Add an event listener to the button after inserting it into the DOM | ||
| document.getElementById('manual-clear-btn').addEventListener('click', async () => { | ||
| toastr.remove(); // Remove all notifications | ||
| try { | ||
| // Attempt to clear the clipboard | ||
| await navigator.clipboard.writeText(''); | ||
| toastr.success( | ||
| `${TRANSLATIONS_CLIPBOARD.clipboard_cleared}`, | ||
| '', { | ||
| timeOut: 2000, | ||
| positionClass: 'toast-bottom-right', | ||
| progressBar: true | ||
| } | ||
| ); | ||
| if (onSuccess) onSuccess(); | ||
| } catch (error) { | ||
| toastr.error( | ||
| `${TRANSLATIONS_CLIPBOARD.unable_to_clear_clipboard}`, | ||
| '', { | ||
| timeOut: 5000, | ||
| positionClass: 'toast-bottom-right', | ||
| progressBar: true | ||
| } | ||
| ); | ||
| if (onError) onError(error); | ||
| } | ||
| }); | ||
|
|
||
| } catch (error) { | ||
| if (onError) onError(error); | ||
| } | ||
| } | ||
|
|
||
| markClipboardAsUnsafe() { | ||
| try { | ||
| // Save clipboard status as unsafe | ||
| localStorage.setItem('clipboardStatus', JSON.stringify({ | ||
| status: 'unsafe', | ||
| timestamp: Date.now() | ||
| })); | ||
| } catch (error) { | ||
| return; | ||
| } | ||
| } | ||
|
|
||
| cleanup() { | ||
| if (this.clearTimeout) { | ||
| clearTimeout(this.clearTimeout); | ||
| } | ||
| } | ||
|
|
||
| static isClipboardSafe() { | ||
| try { | ||
| const clipboardStatus = localStorage.getItem('clipboardStatus'); | ||
| if (clipboardStatus) { | ||
| const status = JSON.parse(clipboardStatus); | ||
| // Consider the clipboard safe if it was cleared less than an hour ago | ||
| if (Date.now() - status.timestamp < 3600000) { | ||
| return status.status === 'safe'; | ||
| } | ||
| } | ||
| return true; | ||
| } catch { | ||
| return false; | ||
| } | ||
| } | ||
| } |
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