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feat(new tool): PDF Encrypt

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PDF Encrypter
This commit is contained in:
sharevb 2024-04-03 23:34:15 +02:00
parent 23b4dc84c8
commit 1b82da5b4b
8 changed files with 1584 additions and 150 deletions
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67
src/composable/downloadBase64.ts
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@ -1,8 +1,12 @@
import { extension as getExtensionFromMime } from 'mime-types';
import { extension as getExtensionFromMimeType, extension as getMimeTypeFromExtension } from 'mime-types';
import type { Ref } from 'vue';
import _ from 'lodash';
export { getMimeTypeFromBase64, useDownloadFileFromBase64 };
export {
getMimeTypeFromBase64,
getMimeTypeFromExtension, getExtensionFromMimeType,
useDownloadFileFromBase64, useDownloadFileFromBase64Refs,
};
const commonMimeTypesSignatures = {
'JVBERi0': 'application/pdf',
@ -36,30 +40,55 @@ function getFileExtensionFromMimeType({
defaultExtension?: string
}) {
if (mimeType) {
return getExtensionFromMime(mimeType) ?? defaultExtension;
return getExtensionFromMimeType(mimeType) ?? defaultExtension;
}
return defaultExtension;
}
function useDownloadFileFromBase64({ source, filename }: { source: Ref<string>; filename?: string }) {
function downloadFromBase64({ sourceValue, filename, extension, fileMimeType }:
{ sourceValue: string; filename?: string; extension?: string; fileMimeType?: string }) {
if (sourceValue === '') {
throw new Error('Base64 string is empty');
}
const defaultExtension = extension ?? 'txt';
const { mimeType } = getMimeTypeFromBase64({ base64String: sourceValue });
let base64String = sourceValue;
if (!mimeType) {
const targetMimeType = fileMimeType ?? getMimeTypeFromExtension(defaultExtension);
base64String = `data:${targetMimeType};base64,${sourceValue}`;
}
const cleanExtension = extension ?? getFileExtensionFromMimeType(
{ mimeType, defaultExtension });
let cleanFileName = filename ?? `file.${cleanExtension}`;
if (extension && !cleanFileName.endsWith(`.${extension}`)) {
cleanFileName = `${cleanFileName}.${cleanExtension}`;
}
const a = document.createElement('a');
a.href = base64String;
a.download = cleanFileName;
a.click();
}
function useDownloadFileFromBase64(
{ source, filename, extension, fileMimeType }:
{ source: Ref<string>; filename?: string; extension?: string; fileMimeType?: string }) {
return {
download() {
if (source.value === '') {
throw new Error('Base64 string is empty');
}
const { mimeType } = getMimeTypeFromBase64({ base64String: source.value });
const base64String = mimeType
? source.value
: `data:text/plain;base64,${source.value}`;
const cleanFileName = filename ?? `file.${getFileExtensionFromMimeType({ mimeType })}`;
const a = document.createElement('a');
a.href = base64String;
a.download = cleanFileName;
a.click();
downloadFromBase64({ sourceValue: source.value, filename, extension, fileMimeType });
},
};
}
function useDownloadFileFromBase64Refs(
{ source, filename, extension }:
{ source: Ref<string>; filename?: Ref<string>; extension?: Ref<string> }) {
return {
download() {
downloadFromBase64({ sourceValue: source.value, filename: filename?.value, extension: extension?.value });
},
};
}