client-index.ts
| 1 | import { encrypt } from "./crypto"; |
| 2 | import { getMode, setupModeRadios } from "./shared"; |
| 3 | |
| 4 | async function uploadFile() { |
| 5 | ( |
| 6 | document.getElementById("upload-dialog") as HTMLDialogElement | null |
| 7 | )?.showModal(); |
| 8 | const passwordInput = document.getElementById( |
| 9 | "password", |
| 10 | ) as HTMLInputElement | null; |
| 11 | const fileInput = document.getElementById("file") as HTMLInputElement | null; |
| 12 | const filenameInput = document.getElementById( |
| 13 | "filename", |
| 14 | ) as HTMLInputElement | null; |
| 15 | const encryptedInput = document.getElementById( |
| 16 | "encrypted", |
| 17 | ) as HTMLInputElement | null; |
| 18 | const form = document.getElementById("uploadForm") as HTMLFormElement | null; |
| 19 | |
| 20 | if ( |
| 21 | !passwordInput || |
| 22 | !fileInput || |
| 23 | !filenameInput || |
| 24 | !encryptedInput || |
| 25 | !form |
| 26 | ) { |
| 27 | console.error("Missing required elements."); |
| 28 | console.error( |
| 29 | passwordInput, |
| 30 | fileInput, |
| 31 | filenameInput, |
| 32 | encryptedInput, |
| 33 | form, |
| 34 | ); |
| 35 | return; |
| 36 | } |
| 37 | |
| 38 | const password = passwordInput.value; |
| 39 | if (!password) { |
| 40 | form.submit(); |
| 41 | return; |
| 42 | } |
| 43 | |
| 44 | const file = fileInput.files?.[0]; |
| 45 | if (!file) { |
| 46 | return; |
| 47 | } |
| 48 | |
| 49 | const content = await file.arrayBuffer(); |
| 50 | const encryptedContent = await encrypt(new Uint8Array(content), password); |
| 51 | |
| 52 | const myFile = new File([encryptedContent as BlobPart], file.name); |
| 53 | const dataTransfer = new DataTransfer(); |
| 54 | dataTransfer.items.add(myFile); |
| 55 | |
| 56 | fileInput.files = dataTransfer.files; |
| 57 | encryptedInput.checked = true; |
| 58 | form.submit(); |
| 59 | } |
| 60 | |
| 61 | // Decides per submit whether to encrypt in the browser (client mode) or let the |
| 62 | // form POST normally so the server encrypts (server mode / no password). |
| 63 | function onUploadSubmit(): boolean { |
| 64 | const passwordInput = document.getElementById( |
| 65 | "password", |
| 66 | ) as HTMLInputElement | null; |
| 67 | if (getMode("encrypt_mode") === "client" && passwordInput?.value) { |
| 68 | uploadFile(); |
| 69 | return false; |
| 70 | } |
| 71 | return true; |
| 72 | } |
| 73 | |
| 74 | // reset() first: it reverts controls to their HTML defaults (incl. the radios), |
| 75 | // so apply the saved mode preference afterwards. |
| 76 | (document.getElementById("uploadForm") as HTMLFormElement | null)?.reset(); |
| 77 | setupModeRadios("encrypt_mode"); |
| 78 | Object.assign(window, { uploadFile }); |
| 79 | Object.assign(window, { onUploadSubmit }); |
| 80 | //disable bfcache, otherwise dialog will stay open when navigating back |
| 81 | window.addEventListener("unload", () => {}); |
| 82 | window.addEventListener("beforeunload", () => {}); |
| 83 |