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* Constructor de HTML para work items
* Genera HTML completo para renderizar en PDFs con Puppeteer
*/
const createDOMPurify = require("isomorphic-dompurify");
class WorkItemHTMLBuilder {
constructor(workItem, selectedFields, cssStyles) {
this.workItem = workItem;
this.selectedFields = selectedFields || [];
this.cssStyles = cssStyles || "";
this.fields = workItem.fields || {};
}
/**
* Construye el HTML completo para el PDF
* @returns {string} HTML completo con estilos
*/
buildFullHTML() {
return `<!DOCTYPE html>
<html lang="es">
<head>
<meta charset="UTF-8">
<title>WI #${this.workItem.id} - ${this._escapeHtml(this.fields["System.Title"] || "Sin título")}</title>
<style>
${this.cssStyles}
</style>
</head>
<body>
${this._buildHeader()}
${this._buildMetadataTable()}
${this._buildFieldSections()}
${this._buildFooter()}
</body>
</html>`;
}
/**
* Construye el encabezado del documento
*/
_buildHeader() {
const workItemType = this.fields["System.WorkItemType"] || "Work Item";
const title = this.fields["System.Title"] || "Sin título";
const state = this.fields["System.State"] || "N/A";
return `
<div class="workitem-header">
<div class="workitem-type">${this._escapeHtml(workItemType)} #${this.workItem.id}</div>
<h1 class="workitem-title">${this._escapeHtml(title)}</h1>
<div class="workitem-state state-${this._sanitizeClassName(state)}">${this._escapeHtml(state)}</div>
</div>`;
}
/**
* Construye la tabla de metadata básica
*/
_buildMetadataTable() {
const metadata = [];
// Proyecto
if (this.fields["System.TeamProject"]) {
metadata.push({
label: "Proyecto",
value: this.fields["System.TeamProject"],
});
}
// Iteración (siempre incluir si seleccionado)
if (
this.selectedFields.includes("iteration") &&
this.fields["System.IterationPath"]
) {
metadata.push({
label: "Iteración",
value: this.fields["System.IterationPath"],
});
}
// Área (siempre incluir si seleccionado)
if (
this.selectedFields.includes("area") &&
this.fields["System.AreaPath"]
) {
metadata.push({
label: "Área",
value: this.fields["System.AreaPath"],
});
}
// Asignado a
if (
this.selectedFields.includes("assignedTo") &&
this.fields["System.AssignedTo"]
) {
const assignedTo = this.fields["System.AssignedTo"];
const displayName =
assignedTo.displayName || assignedTo.uniqueName || "N/A";
metadata.push({
label: "Asignado a",
value: displayName,
});
}
// Estado (siempre incluir si seleccionado)
if (this.selectedFields.includes("state") && this.fields["System.State"]) {
metadata.push({
label: "Estado",
value: this.fields["System.State"],
});
}
// Tags
if (this.selectedFields.includes("tags") && this.fields["System.Tags"]) {
metadata.push({
label: "Etiquetas",
value: this.fields["System.Tags"],
});
}
if (metadata.length === 0) return "";
const rows = metadata
.map(
(m) => `
<tr>
<td class="metadata-label">${this._escapeHtml(m.label)}</td>
<td class="metadata-value">${this._escapeHtml(m.value)}</td>
</tr>`,
)
.join("");
return `
<div class="workitem-metadata">
<table class="metadata-table">
<tbody>
${rows}
</tbody>
</table>
</div>`;
}
/**
* Construye las secciones de campos seleccionados
*/
_buildFieldSections() {
let sections = "";
// Descripción
if (this.selectedFields.includes("description")) {
sections += this._buildFieldSection(
"Descripción",
this.fields["System.Description"],
);
}
// Criterios de Aceptación
if (this.selectedFields.includes("acceptanceCriteria")) {
sections += this._buildFieldSection(
"Criterios de Aceptación",
this.fields["System.AcceptanceCriteria"] ||
this.fields["Microsoft.VSTS.Common.AcceptanceCriteria"],
);
}
// Tareas hijas
if (
this.selectedFields.includes("childItems") &&
this.workItem.childItems &&
this.workItem.childItems.length > 0
) {
sections += this._buildChildItemsSection();
}
return sections;
}
/**
* Construye una sección de campo con HTML
*/
_buildFieldSection(label, htmlContent) {
if (!htmlContent) return "";
// CRÍTICO: Sanitizar HTML para prevenir XSS
// No confiar en datos externos incluso si vienen de Azure DevOps
const sanitizedContent = this._sanitizeHtml(htmlContent);
return `
<div class="workitem-field">
<h2 class="workitem-field-label">${this._escapeHtml(label)}</h2>
<div class="workitem-content">
${sanitizedContent}
</div>
</div>`;
}
/**
* Construye la tabla de tareas hijas
*/
_buildChildItemsSection() {
if (!this.workItem.childItems || this.workItem.childItems.length === 0) {
return "";
}
const rows = this.workItem.childItems
.map((child) => {
const id = child.id || "N/A";
const type = child.fields?.["System.WorkItemType"] || "Task";
const title = child.fields?.["System.Title"] || "Sin título";
const state = child.fields?.["System.State"] || "N/A";
return `
<tr>
<td>#${this._escapeHtml(String(id))}</td>
<td>${this._escapeHtml(type)}</td>
<td>${this._escapeHtml(title)}</td>
<td><span class="state-badge state-${this._sanitizeClassName(state)}">${this._escapeHtml(state)}</span></td>
</tr>`;
})
.join("");
return `
<div class="workitem-field">
<h2 class="workitem-field-label">Tareas (${this.workItem.childItems.length})</h2>
<table class="child-items-table">
<thead>
<tr>
<th style="width: 80px;">ID</th>
<th style="width: 100px;">Tipo</th>
<th>Título</th>
<th style="width: 120px;">Estado</th>
</tr>
</thead>
<tbody>
${rows}
</tbody>
</table>
</div>`;
}
/**
* Construye el footer del documento
*/
_buildFooter() {
const now = new Date().toLocaleString("es-ES", {
year: "numeric",
month: "2-digit",
day: "2-digit",
hour: "2-digit",
minute: "2-digit",
});
return `
<div class="workitem-footer">
<p>Documento generado el ${this._escapeHtml(now)} por G-Bot</p>
</div>`;
}
/**
* Escapa caracteres HTML para prevenir XSS
*/
_escapeHtml(text) {
if (!text) return "";
const str = String(text);
const map = {
"&": "&",
"<": "<",
">": ">",
'"': """,
"'": "'",
};
return str.replace(/[&<>"']/g, (m) => map[m]);
}
/**
* Sanitiza texto para usar como nombre de clase CSS
*/
_sanitizeClassName(text) {
if (!text) return "unknown";
return String(text)
.toLowerCase()
.replace(/[^a-z0-9]/g, "-");
}
/**
* Sanitiza contenido HTML usando DOMPurify para prevenir XSS
* Permite solo tags seguros y remueve atributos peligrosos
* @param {string} html - Contenido HTML a sanitizar
* @returns {string} HTML sanitizado
*/
_sanitizeHtml(html) {
if (!html) return "";
// CRÍTICO: Usar DOMPurify con configuración estricta
const DOMPurify = createDOMPurify();
// Configuración de whitelist estricta
const config = {
ALLOWED_TAGS: [
"p",
"br",
"strong",
"b",
"em",
"i",
"u",
"ul",
"ol",
"li",
"h1",
"h2",
"h3",
"h4",
"h5",
"h6",
"span",
"div",
"table",
"tr",
"td",
"th",
"thead",
"tbody",
],
ALLOWED_ATTR: ["class"],
FORBID_TAGS: ["script", "iframe", "embed", "object"],
FORBID_ATTR: ["onerror", "onload", "onclick", "onmouseover"],
};
return DOMPurify.sanitize(html, config);
}
}
module.exports = { WorkItemHTMLBuilder };
|