refactor(pdf): deslop AcroForm import cleanup

This commit is contained in:
ephraimduncan
2026-05-27 00:39:43 +00:00
parent 874243700f
commit 88e836ddbc
13 changed files with 12 additions and 2967 deletions
-717
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@@ -1,717 +0,0 @@
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startxref
6465
%%EOF
-717
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startxref
6463
%%EOF
@@ -98,11 +98,8 @@ test.describe('AcroForm Import', () => {
},
});
// No fields are created at upload time.
expect(envelope.fields).toHaveLength(0);
// The stored PDF still carries the original AcroForm widgets — they
// survive the upload pipeline and are available to the import button.
const pdfBuffer = await getFileServerSide(envelope.envelopeItems[0].documentData);
expect(await pdfHasFormFields(pdfBuffer)).toBe(true);
@@ -226,21 +223,18 @@ test.describe('AcroForm Import', () => {
expect(meta?.source).toBe('acroform');
}
// FIELD_CREATED audit log entries match the number of imported fields.
const auditEntries = await prisma.documentAuditLog.findMany({
where: { envelopeId: after.id, type: 'FIELD_CREATED' },
});
expect(auditEntries.length).toBe(after.fields.length);
// The envelope item now points at a new (flat) DocumentData record.
expect(after.envelopeItems[0].documentDataId).not.toBe(oldDocumentDataId);
const flattenedPdf = await getFileServerSide(after.envelopeItems[0].documentData);
expect(await pdfHasFormFields(flattenedPdf)).toBe(false);
// The old DocumentData record has been cleaned up.
const oldRecord = await prisma.documentData.findUnique({ where: { id: oldDocumentDataId } });
expect(oldRecord).toBeNull();
@@ -136,9 +136,6 @@ test.describe('Form Flattening', () => {
expect(envelope.formValues).toEqual(TEST_FORM_VALUES);
expect(envelope.type).toBe(EnvelopeType.DOCUMENT);
// DOCUMENT uploads no longer auto-flatten — the editor's "Import from
// PDF form" button is the new flatten trigger. Inserted values remain
// visible in the (still-interactive) widgets.
const documentData = envelope.envelopeItems[0].documentData;
const pdfBuffer = await getFileServerSide(documentData);
@@ -160,8 +157,6 @@ test.describe('Form Flattening', () => {
const payload: TCreateEnvelopePayload = {
type: EnvelopeType.DOCUMENT,
title: 'Document without Form Values',
// No formValues - form fields stay interactive until the user clicks
// "Import from PDF form" in the editor.
};
const formData = new FormData();
@@ -188,7 +183,6 @@ test.describe('Form Flattening', () => {
},
});
// DOCUMENT uploads no longer auto-flatten.
const documentData = envelope.envelopeItems[0].documentData;
const pdfBuffer = await getFileServerSide(documentData);
@@ -749,7 +743,6 @@ test.describe('Form Flattening', () => {
},
});
// DOCUMENT uploads no longer auto-flatten; widgets remain interactive.
const documentData = envelope.envelopeItems[0].documentData;
const pdfBuffer = await getFileServerSide(documentData);
@@ -800,8 +793,6 @@ test.describe('Form Flattening', () => {
[FORM_FIELDS.TEXT_FIELD]: 'Only this field',
});
// DOCUMENT uploads no longer auto-flatten; widgets remain interactive
// and the inserted value is visible inside the still-editable field.
const documentData = envelope.envelopeItems[0].documentData;
const pdfBuffer = await getFileServerSide(documentData);
@@ -53,8 +53,6 @@ export const UNSAFE_createEnvelopeItems = async ({
buffer = await insertFormValuesInPdf({ pdf: buffer, formValues: envelope.formValues });
}
// Preserve interactive AcroForm widgets so they can be imported as
// Documenso fields on demand via the editor's "Import from PDF" button.
const normalized = await normalizePdf(buffer, {
flattenForm: false,
});
@@ -46,11 +46,6 @@ type PreparedItem = {
envelopeItemTitle: string;
oldDocumentDataId: string;
extraction: AcroFormExtractionResult;
/**
* The new flattened DocumentData record. Only set when the item had widgets
* AND no signed signature (signed-sig items keep their original PDF so the
* signature stays valid; their other widgets are still imported).
*/
newDocumentData?: DocumentData;
};
@@ -58,8 +53,6 @@ export const UNSAFE_importAcroFormFieldsFromEnvelope = async ({
envelope,
apiRequestMetadata,
}: UnsafeImportAcroFormFieldsOptions): Promise<ImportAcroFormFieldsResult> => {
// 1. Per-item: load PDF, extract widgets, flatten + upload new PDF when needed.
// Done outside the transaction — IO and PDF work is slow.
const prepared: PreparedItem[] = await Promise.all(
envelope.envelopeItems.map(async (item): Promise<PreparedItem> => {
const buffer = await getFileServerSide(item.documentData);
@@ -117,19 +110,14 @@ export const UNSAFE_importAcroFormFieldsFromEnvelope = async ({
extraction,
};
// No fields to import → leave the PDF as-is.
if (extraction.fields.length === 0) {
return base;
}
// Signed signature → keep widgets in the PDF so the signature stays valid.
// Other widgets still flow into Documenso fields below.
if (extraction.hasSignedSignature) {
return base;
}
// Flatten the form, upload as a fresh DocumentData. The old record is
// deleted after the transaction commits.
const flattened = await normalizePdf(Buffer.from(buffer), {
flattenForm: true,
});
@@ -178,8 +166,6 @@ export const UNSAFE_importAcroFormFieldsFromEnvelope = async ({
};
}
// 2. Transaction: resolve recipient, swap documentData, create fields,
// write audit logs.
const { createdFields, importedItemsCount } = await prisma.$transaction(async (tx) => {
const pickFirstSignableRecipient = (recipients: Pick<Recipient, 'id' | 'email' | 'role' | 'signingOrder'>[]) => {
const signable = recipients.filter((r) => r.role === RecipientRole.SIGNER || r.role === RecipientRole.APPROVER);
@@ -200,20 +186,17 @@ export const UNSAFE_importAcroFormFieldsFromEnvelope = async ({
})[0];
};
let availableRecipients = await tx.recipient.findMany({
where: { envelopeId: envelope.id },
select: { id: true, email: true, role: true, signingOrder: true },
});
let recipient = pickFirstSignableRecipient(
await tx.recipient.findMany({
where: { envelopeId: envelope.id },
select: { id: true, email: true, role: true, signingOrder: true },
}),
);
let firstSignableRecipient = pickFirstSignableRecipient(availableRecipients);
if (!firstSignableRecipient) {
// Mirror the placeholder branch in createEnvelope: create Recipient 1 as
// a SIGNER so the imported fields have somewhere to land. The user can
// reassign in the editor afterwards.
if (!recipient) {
const placeholderEmail = 'recipient.1@documenso.com';
await tx.recipient.create({
recipient = await tx.recipient.create({
data: {
envelopeId: envelope.id,
email: placeholderEmail,
@@ -224,24 +207,10 @@ export const UNSAFE_importAcroFormFieldsFromEnvelope = async ({
sendStatus: SendStatus.NOT_SENT,
signingStatus: SigningStatus.NOT_SIGNED,
},
});
// eslint-disable-next-line require-atomic-updates
availableRecipients = await tx.recipient.findMany({
where: { envelopeId: envelope.id },
select: { id: true, email: true, role: true, signingOrder: true },
});
firstSignableRecipient = pickFirstSignableRecipient(availableRecipients);
}
if (!firstSignableRecipient) {
// Should be unreachable — we just created one.
throw new Error('Failed to resolve a signable recipient for AcroForm import');
}
const recipient = firstSignableRecipient;
const createdFields: Field[] = [];
let importedItemsCount = 0;
@@ -250,7 +219,6 @@ export const UNSAFE_importAcroFormFieldsFromEnvelope = async ({
continue;
}
// Swap to the flattened PDF when we produced one.
if (item.newDocumentData) {
await tx.envelopeItem.update({
where: { id: item.envelopeItemId },
@@ -306,8 +274,6 @@ export const UNSAFE_importAcroFormFieldsFromEnvelope = async ({
return { createdFields, importedItemsCount };
});
// 3. Delete orphaned old DocumentData records. Outside the transaction so a
// delete failure does not undo the import.
await Promise.all(
prepared
.filter((p) => p.newDocumentData !== undefined)
@@ -80,8 +80,6 @@ export const UNSAFE_replaceEnvelopeItemPdf = async ({
buffer = await insertFormValuesInPdf({ pdf: buffer, formValues: envelope.formValues });
}
// Preserve interactive AcroForm widgets so they can be imported as
// Documenso fields on demand via the editor's "Import from PDF" button.
const normalized = await normalizePdf(buffer, {
flattenForm: false,
});
@@ -1,621 +0,0 @@
import fs from 'node:fs';
import path from 'node:path';
import { AnnotationFlags, PDF, PdfDict, PdfName, PdfNumber, PdfString } from '@libpdf/core';
import { FieldType } from '@prisma/client';
import { beforeAll, describe, expect, it, vi } from 'vitest';
import { convertAcroFormFieldsToFieldInputs, extractAcroFormFieldsFromPDF } from './acroform-fields';
const ASSETS_DIR = path.resolve(__dirname, '../../../../assets');
const loadAsset = (name: string) => fs.readFileSync(path.join(ASSETS_DIR, name));
const buildPdfBuffer = async (rotation: 0 | 90 | 180 | 270 = 0) => {
const pdf = PDF.create();
pdf.addPage({ width: 612, height: 792, rotate: rotation });
pdf.addPage({ width: 612, height: 792, rotate: rotation });
const form = pdf.getOrCreateForm();
const [page1, page2] = pdf.getPages();
const customerName = form.createTextField('CustomerName');
page1.drawField(customerName, { x: 80, y: 620, width: 200, height: 24 });
const signedDate = form.createTextField('signed_date');
page1.drawField(signedDate, { x: 80, y: 560, width: 200, height: 24 });
const acceptTerms = form.createCheckbox('accept_terms', { onValue: 'Yes' });
page1.drawField(acceptTerms, { x: 80, y: 500, width: 18, height: 18 });
const country = form.createDropdown('country', {
options: ['USA', 'Canada', 'Germany'],
defaultValue: 'USA',
});
page2.drawField(country, { x: 80, y: 700, width: 200, height: 24 });
const payment = form.createRadioGroup('payment_method', {
options: ['Credit Card', 'PayPal', 'Bank Transfer'],
defaultValue: 'PayPal',
});
page2.drawField(payment, { x: 80, y: 640, width: 16, height: 16, option: 'Credit Card' });
page2.drawField(payment, { x: 80, y: 615, width: 16, height: 16, option: 'PayPal' });
page2.drawField(payment, { x: 80, y: 590, width: 16, height: 16, option: 'Bank Transfer' });
const initials = form.createTextField('initials');
page2.drawField(initials, { x: 80, y: 540, width: 60, height: 24 });
const email = form.createTextField('contact_email');
page2.drawField(email, { x: 160, y: 540, width: 220, height: 24 });
const qty = form.createTextField('item_qty', { maxLength: 4 });
page2.drawField(qty, { x: 400, y: 540, width: 60, height: 24 });
// Format-action precedence: name matches /name/i (would resolve to NAME) but
// AcroForm carries an `AFNumber_Format` action — the action MUST win.
const customerNameNumberField = form.createTextField('customer_name_amount');
page2.drawField(customerNameNumberField, { x: 80, y: 480, width: 120, height: 24 });
customerNameNumberField.acroField().set(
'AA',
PdfDict.of({
F: PdfDict.of({
S: PdfName.of('JavaScript'),
JS: PdfString.fromString('AFNumber_Format(2, 0, 0, 0, "$", true)'),
}),
}),
);
// Required CHECKBOX: /Ff bit 2 (REQUIRED) set via raw dict.
const requiredTerms = form.createCheckbox('required_terms', { onValue: 'Accepted' });
page2.drawField(requiredTerms, { x: 220, y: 480, width: 18, height: 18 });
requiredTerms.acroField().set('Ff', PdfNumber.of(2));
// /TU (alternateName) label fallback: partialName is `shipping_addr` but
// /TU carries a human label that MUST be preferred over partialName.
const shippingAddress = form.createTextField('shipping_addr');
page2.drawField(shippingAddress, { x: 280, y: 480, width: 220, height: 24 });
shippingAddress.acroField().set('TU', PdfString.fromString('Shipping address'));
// Hidden widget: should land in `unsupported` with reason 'hidden' rather
// than producing a field. WidgetAnnotation has no public setFlag, so we
// write the annotation /F entry directly (bit 2 = Hidden).
const hiddenField = form.createTextField('hidden_field');
page2.drawField(hiddenField, { x: 80, y: 440, width: 100, height: 20 });
const hiddenWidgets = hiddenField.getWidgets() as Array<{ dict: PdfDict }>;
if (hiddenWidgets[0]) {
hiddenWidgets[0].dict.set('F', PdfNumber.of(AnnotationFlags.Hidden));
}
// Off-page widget: positioned beyond the right edge of a 612pt-wide page so
// the extractor reports `off-page`. Drawn AFTER all others so the file is
// intentionally malformed.
const offPageField = form.createTextField('off_page_field');
page2.drawField(offPageField, { x: 700, y: 440, width: 60, height: 20 });
return Buffer.from(await pdf.save());
};
describe('extractAcroFormFieldsFromPDF', () => {
let baseBuffer: Buffer;
beforeAll(async () => {
baseBuffer = await buildPdfBuffer();
});
describe('non-AcroForm input', () => {
it('returns no-form skip reason for PDFs without an AcroForm', async () => {
const pdf = PDF.create();
pdf.addPage({ width: 612, height: 792 });
const emptyBuffer = Buffer.from(await pdf.save());
const result = await extractAcroFormFieldsFromPDF(emptyBuffer);
expect(result.fields).toEqual([]);
expect(result.unsupported).toEqual([]);
expect(result.hasSignedSignature).toBe(false);
expect(result.skipReason).toBe('no-form');
});
it('returns error skip reason without throwing for malformed PDFs', async () => {
const garbage = Buffer.from('not a pdf');
const result = await extractAcroFormFieldsFromPDF(garbage);
expect(result.fields).toEqual([]);
expect(result.skipReason).toBe('error');
});
});
describe('field type resolution', () => {
it('maps each supported AcroForm field type to its Documenso counterpart', async () => {
const result = await extractAcroFormFieldsFromPDF(baseBuffer);
expect(result.skipReason).toBeUndefined();
expect(result.hasSignedSignature).toBe(false);
// Two intentionally-bad widgets in the fixture: hidden and off-page.
expect(result.unsupported.map((u) => u.reason).sort()).toEqual(['hidden', 'off-page']);
const byName = new Map(result.fields.map((f) => [f.fieldName, f.fieldAndMeta.type]));
expect(byName.get('CustomerName')).toBe(FieldType.NAME);
expect(byName.get('signed_date')).toBe(FieldType.DATE);
expect(byName.get('accept_terms')).toBe(FieldType.CHECKBOX);
expect(byName.get('country')).toBe(FieldType.DROPDOWN);
expect(byName.get('payment_method')).toBe(FieldType.RADIO);
expect(byName.get('initials')).toBe(FieldType.INITIALS);
expect(byName.get('contact_email')).toBe(FieldType.EMAIL);
expect(byName.get('item_qty')).toBe(FieldType.NUMBER);
// Hidden and off-page widgets must not appear as fields.
expect(byName.has('hidden_field')).toBe(false);
expect(byName.has('off_page_field')).toBe(false);
});
it('emits one Documenso RADIO field per widget (one field per option)', async () => {
const result = await extractAcroFormFieldsFromPDF(baseBuffer);
const radioFields = result.fields.filter((f) => f.fieldName === 'payment_method');
expect(radioFields).toHaveLength(3);
expect(radioFields.every((f) => f.fieldAndMeta.type === FieldType.RADIO)).toBe(true);
});
it('stamps source: "acroform" on every imported field meta', async () => {
const result = await extractAcroFormFieldsFromPDF(baseBuffer);
expect(result.fields.length).toBeGreaterThan(0);
for (const f of result.fields) {
expect(f.fieldAndMeta.fieldMeta?.source).toBe('acroform');
}
});
it('does not use /T partialName as a label when no /TU is set', async () => {
const result = await extractAcroFormFieldsFromPDF(baseBuffer);
const nameField = result.fields.find((f) => f.fieldName === 'CustomerName');
expect(nameField).toBeDefined();
expect(nameField?.fieldAndMeta.fieldMeta?.label).toBeUndefined();
});
it('prefers AcroForm /TU (alternateName) over partialName for the label', async () => {
const result = await extractAcroFormFieldsFromPDF(baseBuffer);
const shippingField = result.fields.find((f) => f.fieldName === 'shipping_addr');
expect(shippingField).toBeDefined();
expect(shippingField?.fieldAndMeta.fieldMeta?.label).toBe('Shipping address');
});
it('lets AcroForm format actions override the name heuristic (P1.1)', async () => {
const result = await extractAcroFormFieldsFromPDF(baseBuffer);
const numberField = result.fields.find((f) => f.fieldName === 'customer_name_amount');
// Without the format action, /name/i would steer this to NAME. The
// `AFNumber_Format` action MUST win.
expect(numberField?.fieldAndMeta.type).toBe(FieldType.NUMBER);
});
it('maps required CHECKBOX (/Ff bit 2) to validationRule "at-least" + length 1', async () => {
const result = await extractAcroFormFieldsFromPDF(baseBuffer);
const required = result.fields.find((f) => f.fieldName === 'required_terms');
expect(required?.fieldAndMeta.type).toBe(FieldType.CHECKBOX);
if (required?.fieldAndMeta.type === FieldType.CHECKBOX) {
expect(required.fieldAndMeta.fieldMeta?.required).toBe(true);
expect(required.fieldAndMeta.fieldMeta?.validationRule).toBe('at-least');
expect(required.fieldAndMeta.fieldMeta?.validationLength).toBe(1);
}
});
});
describe('default values', () => {
it('copies AcroForm dropdown default into fieldMeta.defaultValue when formValues was not provided', async () => {
const result = await extractAcroFormFieldsFromPDF(baseBuffer);
const country = result.fields.find((f) => f.fieldName === 'country');
expect(country?.fieldAndMeta.type).toBe(FieldType.DROPDOWN);
if (country?.fieldAndMeta.type === FieldType.DROPDOWN) {
expect(country.fieldAndMeta.fieldMeta?.defaultValue).toBe('USA');
expect(country.fieldAndMeta.fieldMeta?.values?.map((v) => v.value)).toEqual(['USA', 'Canada', 'Germany']);
}
});
it('skips AcroForm defaults when formValuesProvided is true', async () => {
const result = await extractAcroFormFieldsFromPDF(baseBuffer, { formValuesProvided: true });
const country = result.fields.find((f) => f.fieldName === 'country');
expect(country?.fieldAndMeta.type).toBe(FieldType.DROPDOWN);
if (country?.fieldAndMeta.type === FieldType.DROPDOWN) {
expect(country.fieldAndMeta.fieldMeta?.defaultValue).toBe('');
}
});
it('marks the default radio option as checked when formValues was not provided', async () => {
const result = await extractAcroFormFieldsFromPDF(baseBuffer);
const radios = result.fields.filter((f) => f.fieldName === 'payment_method');
const checkedValues = radios.flatMap((r) => {
if (r.fieldAndMeta.type !== FieldType.RADIO) {
return [];
}
return (r.fieldAndMeta.fieldMeta?.values ?? []).filter((v) => v.checked).map((v) => v.value);
});
expect(checkedValues).toContain('PayPal');
});
});
describe('geometry', () => {
it('produces percentages relative to rendered page dimensions for non-rotated pages', async () => {
const result = await extractAcroFormFieldsFromPDF(baseBuffer);
const customerName = result.fields.find((f) => f.fieldName === 'CustomerName');
expect(customerName).toBeDefined();
if (customerName) {
// user (80, 620) with width 200, height 24 on a 612x792 page.
// Rendered top-left: (80, 792 - 620 - 24) = (80, 148).
const xPct = (customerName.x / customerName.pageWidth) * 100;
const yPct = (customerName.y / customerName.pageHeight) * 100;
const wPct = (customerName.width / customerName.pageWidth) * 100;
const hPct = (customerName.height / customerName.pageHeight) * 100;
expect(xPct).toBeCloseTo((80 / 612) * 100, 2);
expect(yPct).toBeCloseTo((148 / 792) * 100, 2);
expect(wPct).toBeCloseTo((200 / 612) * 100, 2);
expect(hPct).toBeCloseTo((24 / 792) * 100, 2);
}
});
it('handles 90-degree rotated pages with the inverse rotation transform', async () => {
const rotated = await buildPdfBuffer(90);
const result = await extractAcroFormFieldsFromPDF(rotated);
const customerName = result.fields.find((f) => f.fieldName === 'CustomerName');
expect(customerName).toBeDefined();
if (customerName) {
// Rendered page dims for /Rotate 90: width = mediaH (792), height = mediaW (612).
expect(customerName.pageWidth).toBeCloseTo(792, 0);
expect(customerName.pageHeight).toBeCloseTo(612, 0);
// R=90 transform: renderedX = yB = 620, renderedY = xL = 80.
const xPct = (customerName.x / customerName.pageWidth) * 100;
const yPct = (customerName.y / customerName.pageHeight) * 100;
expect(xPct).toBeCloseTo((620 / 792) * 100, 2);
expect(yPct).toBeCloseTo((80 / 612) * 100, 2);
}
});
it('handles 180-degree rotated pages', async () => {
const rotated = await buildPdfBuffer(180);
const result = await extractAcroFormFieldsFromPDF(rotated);
const customerName = result.fields.find((f) => f.fieldName === 'CustomerName');
expect(customerName).toBeDefined();
if (customerName) {
// R=180: renderedX = mediaW - xR = 612 - 280 = 332. renderedY = yB = 620.
const xPct = (customerName.x / customerName.pageWidth) * 100;
const yPct = (customerName.y / customerName.pageHeight) * 100;
expect(xPct).toBeCloseTo((332 / 612) * 100, 2);
expect(yPct).toBeCloseTo((620 / 792) * 100, 2);
}
});
it('handles 270-degree rotated pages', async () => {
const rotated = await buildPdfBuffer(270);
const result = await extractAcroFormFieldsFromPDF(rotated);
const customerName = result.fields.find((f) => f.fieldName === 'CustomerName');
expect(customerName).toBeDefined();
if (customerName) {
// R=270 page dims swap: pageW = mediaH = 792, pageH = mediaW = 612.
// renderedX = mediaH - yT = 792 - 644 = 148. renderedY = mediaW - xR = 612 - 280 = 332.
const xPct = (customerName.x / customerName.pageWidth) * 100;
const yPct = (customerName.y / customerName.pageHeight) * 100;
expect(xPct).toBeCloseTo((148 / 792) * 100, 2);
expect(yPct).toBeCloseTo((332 / 612) * 100, 2);
}
});
});
});
describe('convertAcroFormFieldsToFieldInputs', () => {
it('sorts by (page, y, x) before mapping recipients', async () => {
const buffer = await buildPdfBuffer();
const { fields } = await extractAcroFormFieldsFromPDF(buffer);
const recipient = { id: 42 };
const inputs = convertAcroFormFieldsToFieldInputs(fields, () => recipient, 'env_item_1');
expect(inputs).toHaveLength(fields.length);
// Sorted by page first.
const pages = inputs.map((i) => i.page);
const sortedPages = [...pages].sort((a, b) => a - b);
expect(pages).toEqual(sortedPages);
// Within a single page, positionY (top-left coords) should be ascending
// when rows are >2% apart.
for (let i = 1; i < inputs.length; i++) {
const prev = inputs[i - 1];
const curr = inputs[i];
if (prev.page !== curr.page) {
continue;
}
const yDelta = curr.positionY - prev.positionY;
// Either next row (yDelta > -2%) or same row (then x must be ascending).
if (Math.abs(yDelta) <= 2) {
expect(curr.positionX).toBeGreaterThanOrEqual(prev.positionX);
} else {
expect(yDelta).toBeGreaterThan(0);
}
}
});
it('passes recipientId through the resolver for every imported field', async () => {
const buffer = await buildPdfBuffer();
const { fields } = await extractAcroFormFieldsFromPDF(buffer);
const recipient = { id: 7 };
const inputs = convertAcroFormFieldsToFieldInputs(fields, () => recipient, 'env_item_xyz');
for (const input of inputs) {
expect(input.recipientId).toBe(recipient.id);
expect(input.envelopeItemId).toBe('env_item_xyz');
}
});
});
describe('extractAcroFormFieldsFromPDF — committed fixture', () => {
it('extracts the expected fields from assets/acroform-import-test.pdf', async () => {
const buffer = loadAsset('acroform-import-test.pdf');
const result = await extractAcroFormFieldsFromPDF(buffer);
expect(result.skipReason).toBeUndefined();
expect(result.unsupported).toEqual([]);
expect(result.fields.length).toBeGreaterThanOrEqual(8);
});
it('extracts the expected fields from rotated fixtures (90/180/270)', async () => {
for (const angle of [90, 180, 270]) {
const buffer = loadAsset(`acroform-import-rotated-${angle}.pdf`);
const result = await extractAcroFormFieldsFromPDF(buffer);
expect(result.skipReason).toBeUndefined();
expect(result.unsupported).toEqual([]);
expect(result.fields.length).toBeGreaterThanOrEqual(8);
}
});
});
/**
* Stub-based scenarios exercise paths that {@link buildPdfBuffer} cannot easily
* produce (signed signatures, encrypted docs, XFA hybrids, listboxes, widgets
* with mismatched page refs). Each stub mirrors the methods the extractor
* actually calls — keeping the contract narrow so a future refactor of the
* extractor surfaces here as a loud test failure rather than a silent miss.
*/
describe('extractAcroFormFieldsFromPDF — mocked scenarios', () => {
const emptyAcroFormDict = { has: () => false };
const emptyCatalogDict = {
getDict: () => emptyAcroFormDict,
};
const emptyContext = {
catalog: { getDict: () => emptyCatalogDict },
resolve: () => null,
};
const buildFieldStub = (overrides: Record<string, unknown>) => ({
name: 'stub_field',
partialName: 'stub_field',
alternateName: null,
isReadOnly: () => false,
isRequired: () => false,
acroField: () => ({
get: () => undefined,
getDict: () => undefined,
getNumber: () => undefined,
has: () => false,
set: () => undefined,
}),
getWidgets: () => [],
...overrides,
});
it('returns skipReason "encrypted" when PDF.isEncrypted is true (P2.6)', async () => {
vi.spyOn(PDF, 'load').mockResolvedValueOnce({ isEncrypted: true } as unknown as PDF);
const result = await extractAcroFormFieldsFromPDF(Buffer.from('stub'));
expect(result.skipReason).toBe('encrypted');
expect(result.fields).toEqual([]);
expect(result.hasSignedSignature).toBe(false);
});
it('returns skipReason "xfa-hybrid" when /AcroForm has /XFA and no AcroForm fields (P2.1)', async () => {
const xfaCatalogDict = {
getDict: (key: string) => (key === 'AcroForm' ? { has: (k: string) => k === 'XFA' } : undefined),
};
vi.spyOn(PDF, 'load').mockResolvedValueOnce({
isEncrypted: false,
context: { catalog: { getDict: () => xfaCatalogDict }, resolve: () => null },
getForm: () => ({ getFields: () => [] }),
getPages: () => [],
} as unknown as PDF);
const result = await extractAcroFormFieldsFromPDF(Buffer.from('stub'));
expect(result.skipReason).toBe('xfa-hybrid');
expect(result.fields).toEqual([]);
});
it('imports AcroForm widgets even when /AcroForm also has /XFA', async () => {
const xfaCatalogDict = {
getDict: (key: string) => (key === 'AcroForm' ? { has: (k: string) => k === 'XFA' } : undefined),
};
const pageRef = { objectNumber: 1, generation: 0 } as unknown as PdfDict;
const widget = {
rect: [100, 600, 300, 624] as [number, number, number, number],
pageRef,
isHidden: () => false,
getOnValue: () => null,
};
const field = buildFieldStub({
type: 'text',
name: 'topmostSubform[0].Page1[0].f1_1[0]',
partialName: 'f1_1',
getValue: () => '',
getDefaultValue: () => '',
getWidgets: () => [widget],
});
const page = {
ref: pageRef,
width: 612,
height: 792,
rotation: 0,
getMediaBox: () => ({ x: 0, y: 0, width: 612, height: 792 }),
};
vi.spyOn(PDF, 'load').mockResolvedValueOnce({
isEncrypted: false,
context: { catalog: { getDict: () => xfaCatalogDict }, resolve: () => null },
getForm: () => ({ getFields: () => [field] }),
getPages: () => [page],
} as unknown as PDF);
const result = await extractAcroFormFieldsFromPDF(Buffer.from('stub'));
expect(result.skipReason).toBeUndefined();
expect(result.fields).toHaveLength(1);
expect(result.fields[0]?.fieldAndMeta.type).toBe(FieldType.TEXT);
expect(result.fields[0]?.fieldAndMeta.fieldMeta?.label).toBe('');
});
it('skips signed signature widgets and reports hasSignedSignature: true (P1.2)', async () => {
const signedField = buildFieldStub({
type: 'signature',
name: 'ExistingSignature',
partialName: 'ExistingSignature',
isSigned: () => true,
});
vi.spyOn(PDF, 'load').mockResolvedValueOnce({
isEncrypted: false,
context: emptyContext,
getForm: () => ({ getFields: () => [signedField] }),
getPages: () => [],
} as unknown as PDF);
const result = await extractAcroFormFieldsFromPDF(Buffer.from('stub'));
expect(result.hasSignedSignature).toBe(true);
expect(result.fields).toEqual([]);
expect(result.unsupported.find((u) => u.reason === 'signed-signature')).toMatchObject({
fieldName: 'ExistingSignature',
acroFormType: 'signature',
});
});
it('imports unsigned signature widgets normally (P1.2 negative control)', async () => {
const pageRef = { objectNumber: 1, generation: 0 } as unknown as PdfDict;
const widget = {
rect: [100, 600, 300, 640] as [number, number, number, number],
pageRef,
isHidden: () => false,
getOnValue: () => null,
};
const unsignedField = buildFieldStub({
type: 'signature',
name: 'NewSignature',
partialName: 'NewSignature',
isSigned: () => false,
getWidgets: () => [widget],
});
const page = {
ref: pageRef,
width: 612,
height: 792,
rotation: 0,
getMediaBox: () => ({ x: 0, y: 0, width: 612, height: 792 }),
};
vi.spyOn(PDF, 'load').mockResolvedValueOnce({
isEncrypted: false,
context: emptyContext,
getForm: () => ({ getFields: () => [unsignedField] }),
getPages: () => [page],
} as unknown as PDF);
const result = await extractAcroFormFieldsFromPDF(Buffer.from('stub'));
expect(result.hasSignedSignature).toBe(false);
expect(result.fields).toHaveLength(1);
expect(result.fields[0]?.fieldAndMeta.type).toBe(FieldType.SIGNATURE);
});
it('reports listbox fields as unsupported-type (P2.6)', async () => {
const listboxField = buildFieldStub({
type: 'listbox',
name: 'colors',
partialName: 'colors',
});
vi.spyOn(PDF, 'load').mockResolvedValueOnce({
isEncrypted: false,
context: emptyContext,
getForm: () => ({ getFields: () => [listboxField] }),
getPages: () => [],
} as unknown as PDF);
const result = await extractAcroFormFieldsFromPDF(Buffer.from('stub'));
expect(result.fields).toEqual([]);
expect(result.unsupported).toHaveLength(1);
expect(result.unsupported[0]?.reason).toBe('unsupported-type');
expect(result.unsupported[0]?.acroFormType).toBe('listbox');
});
it('reports widgets with unknown pageRef as no-page-match (P2.6)', async () => {
const realPageRef = { objectNumber: 1, generation: 0 } as unknown as PdfDict;
const orphanPageRef = { objectNumber: 99, generation: 0 } as unknown as PdfDict;
const orphanField = buildFieldStub({
type: 'text',
name: 'orphan_text',
partialName: 'orphan_text',
getWidgets: () => [
{
rect: [100, 600, 200, 620] as [number, number, number, number],
pageRef: orphanPageRef,
isHidden: () => false,
getOnValue: () => null,
},
],
});
const page = {
ref: realPageRef,
width: 612,
height: 792,
rotation: 0,
getMediaBox: () => ({ x: 0, y: 0, width: 612, height: 792 }),
};
vi.spyOn(PDF, 'load').mockResolvedValueOnce({
isEncrypted: false,
context: emptyContext,
getForm: () => ({ getFields: () => [orphanField] }),
getPages: () => [page],
} as unknown as PDF);
const result = await extractAcroFormFieldsFromPDF(Buffer.from('stub'));
expect(result.fields).toEqual([]);
expect(result.unsupported.map((u) => u.reason)).toContain('no-page-match');
});
});
@@ -253,13 +253,7 @@ const resolveTextSubtype = (
} => {
const candidateNames = [field.partialName, field.alternateName];
let formatHint: 'date' | 'number' | null = null;
try {
formatHint = getTextFieldFormatHint(field.acroField(), resolver);
} catch {
formatHint = null;
}
const formatHint = getTextFieldFormatHint(field.acroField(), resolver);
// AcroForm format actions take precedence over name tokens — Adobe set them
// explicitly, so they're a stronger signal than a heuristic regex hit.
@@ -271,17 +265,7 @@ const resolveTextSubtype = (
return { documensoType: FieldType.NUMBER };
}
let maxLen = Number.POSITIVE_INFINITY;
try {
const lenEntry = field.acroField().getNumber('MaxLen', resolver);
if (lenEntry) {
maxLen = lenEntry.value;
}
} catch {
// Ignore — MaxLen is optional.
}
const maxLen = field.acroField().getNumber('MaxLen', resolver)?.value ?? Number.POSITIVE_INFINITY;
if (candidateNames.some(isDateFieldByName)) {
return { documensoType: FieldType.DATE };
@@ -623,9 +607,6 @@ const resolveWidgetPages = (
return { matched, unmatched };
};
/**
* Options for {@link extractAcroFormFieldsFromPDF}.
*/
export type ExtractAcroFormOptions = {
/**
* When true, `insertFormValuesInPdf` already ran for this buffer. The
@@ -719,14 +700,12 @@ export const extractAcroFormFieldsFromPDF = async (
const widgets = formField.getWidgets();
const { matched, unmatched } = resolveWidgetPages(widgets, pageByRef);
for (const widget of unmatched) {
for (let i = 0; i < unmatched.length; i += 1) {
unsupported.push({
fieldName: field.name,
acroFormType,
reason: 'no-page-match',
});
// Reference widget so it isn't tree-shaken in dev tooling; harmless at runtime.
void widget;
}
let widgetCounter = 0;
@@ -118,8 +118,6 @@ export const createEnvelopeRouteCaller = async ({
});
}
// Preserve interactive AcroForm widgets so they can be imported as
// Documenso fields on demand via the editor's "Import from PDF" button.
const normalized = await normalizePdf(pdf, {
flattenForm: false,
});
@@ -10,14 +10,6 @@ import {
ZImportAcroFormFieldsResponseSchema,
} from './import-acroform-fields.types';
/**
* Internal-only — driven by the "Import from PDF" button in the envelope editor.
*
* Extracts AcroForm widgets from each envelope item's stored PDF, creates
* Documenso `Field` rows for the supported widgets, flattens the PDF in place
* (so widgets do not visually duplicate the imported fields), and emits a
* `FIELD_CREATED` audit entry per field on DOCUMENT envelopes.
*/
export const importAcroFormFieldsRoute = authenticatedProcedure
.input(ZImportAcroFormFieldsRequestSchema)
.output(ZImportAcroFormFieldsResponseSchema)
@@ -69,7 +61,7 @@ export const importAcroFormFieldsRoute = authenticatedProcedure
});
}
return await UNSAFE_importAcroFormFieldsFromEnvelope({
return UNSAFE_importAcroFormFieldsFromEnvelope({
envelope,
apiRequestMetadata: metadata,
});
-99
View File
@@ -1,99 +0,0 @@
// scripts/generate-acroform-test-pdf.mjs
//
// Generates the AcroForm import fixture PDFs used by the test suite.
// Run via: node scripts/generate-acroform-test-pdf.mjs
import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import { PDF } from '@libpdf/core';
const __dirname = path.dirname(fileURLToPath(import.meta.url));
const ASSETS_DIR = path.resolve(__dirname, '..', 'assets');
const LETTER_WIDTH = 612;
const LETTER_HEIGHT = 792;
/**
* Build the base fixture: one of each supported AcroForm field type with a
* mix of name heuristics so the type-resolution heuristic gets exercised.
*/
async function buildBaseFixture({ rotation = 0 } = {}) {
const pdf = PDF.create();
pdf.addPage({ width: LETTER_WIDTH, height: LETTER_HEIGHT, rotate: rotation });
pdf.addPage({ width: LETTER_WIDTH, height: LETTER_HEIGHT, rotate: rotation });
const page1 = pdf.getPage(0);
const page2 = pdf.getPage(1);
const form = pdf.getOrCreateForm();
// Page 1: text (NAME heuristic), text (DATE heuristic), checkbox.
// Note: SignatureField widgets can't be drawn without going through libpdf's
// PDFSignature path. Production PDFs (Adobe Acrobat etc.) supply the widget
// themselves; covered via unit-test mocks rather than this generator.
const customerName = form.createTextField('CustomerName');
page1.drawField(customerName, { x: 80, y: 620, width: 200, height: 24 });
const signedDate = form.createTextField('signed_date');
page1.drawField(signedDate, { x: 80, y: 560, width: 200, height: 24 });
const acceptTerms = form.createCheckbox('accept_terms', { onValue: 'Yes' });
page1.drawField(acceptTerms, { x: 80, y: 500, width: 18, height: 18 });
// Page 2: dropdown, radio (3 options), text (INITIALS), text (EMAIL),
// text (NUMBER via name + small MaxLen), and a required-readonly text.
const country = form.createDropdown('country', {
options: ['USA', 'Canada', 'Germany'],
defaultValue: 'USA',
});
page2.drawField(country, { x: 80, y: 700, width: 200, height: 24 });
const payment = form.createRadioGroup('payment_method', {
options: ['Credit Card', 'PayPal', 'Bank Transfer'],
defaultValue: 'PayPal',
});
page2.drawField(payment, { x: 80, y: 640, width: 16, height: 16, option: 'Credit Card' });
page2.drawField(payment, { x: 80, y: 615, width: 16, height: 16, option: 'PayPal' });
page2.drawField(payment, { x: 80, y: 590, width: 16, height: 16, option: 'Bank Transfer' });
const initials = form.createTextField('initials');
page2.drawField(initials, { x: 80, y: 540, width: 60, height: 24 });
const email = form.createTextField('contact_email');
page2.drawField(email, { x: 160, y: 540, width: 220, height: 24 });
const qty = form.createTextField('item_qty', { maxLength: 4 });
page2.drawField(qty, { x: 400, y: 540, width: 60, height: 24 });
return Buffer.from(await pdf.save());
}
function ensureAssetsDir() {
if (!fs.existsSync(ASSETS_DIR)) {
fs.mkdirSync(ASSETS_DIR, { recursive: true });
}
}
async function main() {
ensureAssetsDir();
const base = await buildBaseFixture();
fs.writeFileSync(path.join(ASSETS_DIR, 'acroform-import-test.pdf'), base);
const rot90 = await buildBaseFixture({ rotation: 90 });
fs.writeFileSync(path.join(ASSETS_DIR, 'acroform-import-rotated-90.pdf'), rot90);
const rot180 = await buildBaseFixture({ rotation: 180 });
fs.writeFileSync(path.join(ASSETS_DIR, 'acroform-import-rotated-180.pdf'), rot180);
const rot270 = await buildBaseFixture({ rotation: 270 });
fs.writeFileSync(path.join(ASSETS_DIR, 'acroform-import-rotated-270.pdf'), rot270);
console.log('Wrote fixtures to', ASSETS_DIR);
}
await main();