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OpenSign/apps/OpenSignServer/Utils.js
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import dotenv from 'dotenv';
import { format, toZonedTime } from 'date-fns-tz';
import getPresignedUrl, { getSignedLocalUrl } from './cloud/parsefunction/getSignedUrl.js';
import crypto from 'node:crypto';
import { PDFDocument, rgb } from 'pdf-lib';
import { parseUploadFile } from './utils/fileUtils.js';
dotenv.config({ quiet: true });
export const cloudServerUrl = 'http://localhost:8080/app';
export const serverAppId = process.env.APP_ID || 'opensign';
export const appName = 'OpenSign™';
export const prefillDraftDocWidget = ['date', 'textbox', 'checkbox', 'radio button', 'image'];
export const prefillDraftTemWidget = [
'date',
'textbox',
'checkbox',
'radio button',
'image',
'dropdown',
];
export const MAX_NAME_LENGTH = 250;
export const MAX_NOTE_LENGTH = 200;
export const MAX_DESCRIPTION_LENGTH = 500;
export const color = [
'#93a3db',
'#e6c3db',
'#c0e3bc',
'#bce3db',
'#b8ccdb',
'#ceb8db',
'#ffccff',
'#99ffcc',
'#cc99ff',
'#ffcc99',
'#66ccff',
'#ffffcc',
];
export const prefillBlockColor = 'transparent';
export function replaceMailVaribles(subject, body, variables) {
let replacedSubject = subject;
let replacedBody = body;
for (const variable in variables) {
const regex = new RegExp(`{{${variable}}}`, 'g');
if (subject) {
replacedSubject = replacedSubject.replace(regex, variables[variable]);
}
if (body) {
replacedBody = replacedBody.replace(regex, variables[variable]);
}
}
const result = { subject: replacedSubject, body: replacedBody };
return result;
}
export const saveFileUsage = async (size, fileUrl, userId) => {
//checking server url and save file's size
try {
if (userId) {
const userPtr = { __type: 'Pointer', className: '_User', objectId: userId };
const tenantQuery = new Parse.Query('partners_Tenant');
tenantQuery.equalTo('UserId', userPtr);
const tenant = await tenantQuery.first({ useMasterKey: true });
if (tenant) {
const tenantPtr = { __type: 'Pointer', className: 'partners_Tenant', objectId: tenant.id };
try {
const tenantCredits = new Parse.Query('partners_TenantCredits');
tenantCredits.equalTo('PartnersTenant', tenantPtr);
const res = await tenantCredits.first({ useMasterKey: true });
if (res) {
const response = JSON.parse(JSON.stringify(res));
const usedStorage = response?.usedStorage ? response.usedStorage + size : size;
const updateCredit = new Parse.Object('partners_TenantCredits');
updateCredit.id = res.id;
updateCredit.set('usedStorage', usedStorage);
await updateCredit.save(null, { useMasterKey: true });
} else {
const newCredit = new Parse.Object('partners_TenantCredits');
newCredit.set('usedStorage', size);
newCredit.set('PartnersTenant', tenantPtr);
await newCredit.save(null, { useMasterKey: true });
}
} catch (err) {
console.log('err in save usage', err);
}
saveDataFile(size, fileUrl, tenantPtr, userPtr);
}
}
} catch (err) {
console.log('err in fetch tenant Id', err);
}
};
//function for save fileUrl and file size in particular client db class partners_DataFiles
const saveDataFile = async (size, fileUrl, tenantPtr, UserId) => {
try {
const newDataFiles = new Parse.Object('partners_DataFiles');
newDataFiles.set('FileUrl', fileUrl);
newDataFiles.set('FileSize', size);
newDataFiles.set('TenantPtr', tenantPtr);
newDataFiles.set('UserId', UserId);
await newDataFiles.save(null, { useMasterKey: true });
} catch (err) {
console.log('error in save usage ', err);
}
};
export const updateMailCount = async (extUserId, plan, monthchange) => {
// Update count in contracts_Users class
const query = new Parse.Query('contracts_Users');
query.equalTo('objectId', extUserId);
try {
const contractUser = await query.first({ useMasterKey: true });
if (contractUser) {
const _extRes = JSON.parse(JSON.stringify(contractUser));
let updateDate = new Date();
if (_extRes?.LastEmailCountReset?.iso) {
updateDate = new Date(_extRes?.LastEmailCountReset?.iso);
const newDate = new Date();
// Update the month while keeping the same day and year
updateDate.setMonth(newDate.getMonth());
updateDate.setFullYear(newDate.getFullYear());
}
contractUser.increment('EmailCount', 1);
if (plan === 'freeplan') {
if (monthchange) {
contractUser.set('LastEmailCountReset', updateDate);
contractUser.set('MonthlyFreeEmails', 1);
} else {
if (contractUser?.get('MonthlyFreeEmails')) {
contractUser.increment('MonthlyFreeEmails', 1);
if (contractUser?.get('LastEmailCountReset')) {
contractUser.set('LastEmailCountReset', updateDate);
}
} else {
contractUser.set('MonthlyFreeEmails', 1);
contractUser.set('LastEmailCountReset', updateDate);
}
}
}
await contractUser.save(null, { useMasterKey: true });
}
} catch (error) {
console.log('Error updating EmailCount in contracts_Users: ' + error.message);
}
};
export function sanitizeFileName(fileName) {
// Remove spaces and invalid characters
const file = fileName.replace(/[^a-zA-Z0-9._-]/g, '');
const removedot = file.replace(/\.(?=.*\.)/g, '');
return removedot.replace(/[^a-zA-Z0-9._-]/g, '');
}
export const useLocal = process.env.USE_LOCAL ? process.env.USE_LOCAL.toLowerCase() : 'false';
export const smtpsecure = process.env.SMTP_PORT && process.env.SMTP_PORT !== '465' ? false : true;
export const smtpenable =
process.env.SMTP_ENABLE && process.env.SMTP_ENABLE.toLowerCase() === 'true' ? true : false;
export const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
export function signPayload(payload, secret) {
if (payload && secret) {
const signature = crypto
.createHmac('sha256', secret)
.update(JSON.stringify(payload))
.digest('hex');
return { 'x-webhook-signature': signature };
} else {
return {};
}
}
// `generateId` is used to unique Id for fileAdapter
export function generateId(length) {
const characters = 'abcdefghijklmnopqrstuvwxyz0123456789';
let result = '';
const charactersLength = characters.length;
for (let i = 0; i < length; i++) {
result += characters.charAt(Math.floor(Math.random() * charactersLength));
}
return result;
}
// Format date and time for the selected timezone
export const formatTimeInTimezone = (date, timezone) => {
const nyDate = timezone && toZonedTime(date, timezone);
const generatedDate = timezone
? format(nyDate, 'EEE, dd MMM yyyy HH:mm:ss zzz', { timeZone: timezone })
: new Date(date).toUTCString();
return generatedDate;
};
// `getSecureUrl` is used to return local secure url if local files
export const getSecureUrl = url => {
const fileUrl = new URL(url)?.pathname?.includes('files');
if (fileUrl) {
try {
const file = getSignedLocalUrl(url);
if (file) {
return { url: file };
} else {
return { url: '' };
}
} catch (err) {
console.log('err while fileupload ', err);
return { url: '' };
}
} else {
return { url: url };
}
};
/**
* FlattenPdf is used to remove existing widgets if present any and flatten pdf.
* @param {string | Uint8Array | ArrayBuffer} pdfFile - pdf file.
* @returns {Promise<Uint8Array>} flatPdf - pdf file in unit8arry
*/
export const flattenPdf = async pdfFile => {
try {
const pdfDoc = await PDFDocument.load(pdfFile);
// Get the form
const form = pdfDoc.getForm();
// fetch form fields
const fields = form.getFields();
// remove form all existing fields and their widgets
if (fields && fields?.length > 0) {
try {
for (const field of fields) {
while (field.acroField.getWidgets().length) {
field.acroField.removeWidget(0);
}
form.removeField(field);
}
} catch (err) {
console.log('err while removing field from pdf', err);
}
}
// Updates the field appearances to ensure visual changes are reflected.
form.updateFieldAppearances();
// Flattens the form, converting all form fields into non-editable, static content
form.flatten();
const flatPdf = await pdfDoc.save({ useObjectStreams: false });
return flatPdf;
} catch (err) {
console.log('err ', err);
throw new Error('error in pdf');
}
};
export const mailTemplate = param => {
const themeColor = '#47a3ad';
const subject = `${param.senderName} has requested you to sign "${param.title}"`;
const AppName = appName;
const logo = `<img src='https://qikinnovation.ams3.digitaloceanspaces.com/logo.png' height='50' />`;
const opurl = ` <a href='www.opensignlabs.com' target=_blank>here</a>`;
const body =
"<html><head><meta http-equiv='Content-Type' content='text/html;charset=UTF-8' /></head><body><div style='background-color:#f5f5f5;padding:20px'><div style='background:white;padding-bottom:20px'><div style='padding:10px'>" +
logo +
`</div><div style='padding:2px;font-family:system-ui;background-color:${themeColor}'><p style='font-size:20px;font-weight:400;color:white;padding-left:20px'>Digital Signature Request</p></div><div><p style='padding:20px;font-size:14px;margin-bottom:10px'>` +
param.senderName +
' has requested you to review and sign <strong>' +
param.title +
"</strong>.</p><div style='padding: 5px 0px 5px 25px;display:flex;flex-direction:row;justify-content:space-around'><table><tr><td style='font-weight:bold;font-family:sans-serif;font-size:15px'>Sender</td><td></td><td style='color:#626363;font-weight:bold'>" +
param.senderMail +
"</td></tr><tr><td style='font-weight:bold;font-family:sans-serif;font-size:15px'>Organization</td><td></td><td style='color:#626363;font-weight:bold'> " +
param.organization +
"</td></tr><tr><td style='font-weight:bold;font-family:sans-serif;font-size:15px'>Expires on</td><td></td><td style='color:#626363;font-weight:bold'>" +
param.localExpireDate +
"</td></tr><tr><td style='font-weight:bold;font-family:sans-serif;font-size:15px'>Note</td><td></td><td style='color:#626363;font-weight:bold'>" +
param.note +
"</td></tr><tr><td></td><td></td></tr></table></div> <div style='margin-left:70px'><a target=_blank href=" +
param.signingUrl +
"><button style='padding:12px;background-color:#d46b0f;color:white;border:0px;font-weight:bold;margin-top:30px'>Sign here</button></a></div><div style='display:flex;justify-content:center;margin-top:10px'></div></div></div><div><p> This is an automated email from " +
AppName +
'. For any queries regarding this email, please contact the sender ' +
param.senderMail +
` directly. If you think this email is inappropriate or spam, you may file a complaint with ${AppName}${opurl}.</p></div></div></body></html>`;
return { subject, body };
};
export const selectFormat = data => {
switch (data) {
case 'L':
return 'MM/dd/yyyy';
case 'MM/DD/YYYY':
return 'MM/dd/yyyy';
case 'DD-MM-YYYY':
return 'dd-MM-yyyy';
case 'DD/MM/YYYY':
return 'dd/MM/yyyy';
case 'LL':
return 'MMMM dd, yyyy';
case 'DD MMM, YYYY':
return 'dd MMM, yyyy';
case 'YYYY-MM-DD':
return 'yyyy-MM-dd';
case 'MM-DD-YYYY':
return 'MM-dd-yyyy';
case 'MM.DD.YYYY':
return 'MM.dd.yyyy';
case 'MMM DD, YYYY':
return 'MMM dd, yyyy';
case 'MMMM DD, YYYY':
return 'MMMM dd, yyyy';
case 'DD MMMM, YYYY':
return 'dd MMMM, yyyy';
case 'DD.MM.YYYY':
return 'dd.MM.yyyy';
default:
return 'MM/dd/yyyy';
}
};
export function formatDateTime(date, dateFormat, timeZone, is12Hour) {
const zonedDate = toZonedTime(date, timeZone); // Convert date to the given timezone
const timeFormat = is12Hour ? 'hh:mm:ss a' : 'HH:mm:ss';
return dateFormat
? format(zonedDate, `${selectFormat(dateFormat)}, ${timeFormat} 'GMT' XXX`, { timeZone })
: formatTimeInTimezone(date, timeZone);
}
export const randomId = () => {
const randomBytes = crypto.getRandomValues(new Uint16Array(1));
const randomValue = randomBytes[0];
const randomDigit = 1000 + (randomValue % 9000);
return randomDigit;
};
export const handleValidImage = async Placeholder => {
const updatedPlaceholders = [];
for (const placeholder of Placeholder || []) {
//Clean and format signerPtr
let signerPtr = placeholder.signerPtr;
// Check if signerPtr exists and has an id
if (signerPtr?.id) {
// Case 1: If signerPtr is a Parse Object instance
if (signerPtr instanceof Parse.Object) {
// If signerPtr has no attributes, its a plain pointer already
if (!signerPtr.attributes || Object.keys(signerPtr.attributes).length === 0) {
// Convert to a clean pointer using Parses built-in method
signerPtr = signerPtr.toPointer();
} else {
// If it has attributes, manually construct the pointer object
signerPtr = {
__type: 'Pointer',
className: signerPtr.className,
objectId: signerPtr.id,
};
}
// Case 2: If signerPtr is already a plain JS object resembling a pointer
} else if (typeof signerPtr === 'object' && signerPtr.className && signerPtr.objectId) {
// Normalize it to a valid Parse pointer object
signerPtr = {
__type: 'Pointer',
className: signerPtr.className,
objectId: signerPtr.objectId,
};
}
}
//Process placeHolder if Role is 'prefill'
if (placeholder?.Role === 'prefill') {
const updatedRole = [];
for (const item of placeholder.placeHolder || []) {
const updatedPos = [];
for (const posItem of item.pos || []) {
if (posItem?.type === 'image' && posItem?.SignUrl) {
const validUrl = await getPresignedUrl(posItem?.SignUrl);
updatedPos.push({
...posItem,
SignUrl: validUrl,
options: { ...posItem.options, response: validUrl },
});
} else {
updatedPos.push(posItem);
}
}
updatedRole.push({
...item,
pos: updatedPos,
});
}
updatedPlaceholders.push({
...placeholder,
signerPtr,
placeHolder: updatedRole,
});
} else {
// Not prefill role, just push as-is
updatedPlaceholders.push({
...placeholder,
signerPtr,
});
}
}
return updatedPlaceholders;
};