217 lines
9.2 KiB
JavaScript
217 lines
9.2 KiB
JavaScript
const { fetchTemplateById } = require('./templates');
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const { parseJsonSafe } = require('./utils');
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const ALLOWED_RICH_TEXT_TAGS = ['b', 'strong', 'i', 'em', 'u', 'br', 'p', 'div', 'ul', 'ol', 'li'];
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const DEFAULT_FONT_SIZE = 32;
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function sanitizeRichText(html) {
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let output = String(html || '');
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output = output.replace(/<script[\s\S]*?<\/script>/gi, '');
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output = output.replace(/<style[\s\S]*?<\/style>/gi, '');
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return output.replace(/<[^>]+>/g, (tag) => {
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const match = tag.match(/^<\s*(\/?)\s*([a-z0-9]+)(?:\s[^>]*)?>$/i);
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if (!match) {
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return '';
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}
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const closing = Boolean(match[1]);
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const name = String(match[2] || '').toLowerCase();
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if (!ALLOWED_RICH_TEXT_TAGS.includes(name)) {
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return '';
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}
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if (name === 'br') {
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return '<br>';
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}
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return closing ? `</${name}>` : `<${name}>`;
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});
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}
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async function fetchSlideById(pool, id) {
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const [slides] = await pool.query(`
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SELECT s.id, s.title, s.template_id, s.content_json, s.thumbnail_path, s.created_at, s.modified_at,
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st.name AS template_name, cs.name AS canvas_size_name, cs.width AS canvas_width, cs.height AS canvas_height
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FROM c_slides s
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LEFT JOIN c_templates st ON st.id = s.template_id
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LEFT JOIN c_canvas_sizes cs ON cs.id = st.canvas_size_id
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WHERE s.id = ?
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`, [id]);
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if (!slides.length) {
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return null;
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}
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const slide = slides[0];
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slide.content = parseJsonSafe(slide.content_json) || {};
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if (slide.template_id) {
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slide.template = await fetchTemplateById(pool, slide.template_id);
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}
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return slide;
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}
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function getFilesByField(files) {
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const map = {};
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(files || []).forEach((file) => {
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map[file.fieldname] = file;
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});
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return map;
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}
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function sanitizeTextColor(value, fallback) {
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const raw = String(value || '').trim();
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if (/^#[0-9a-fA-F]{6}$/.test(raw) || /^#[0-9a-fA-F]{3}$/.test(raw)) {
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return raw;
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}
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return fallback || '#000000';
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}
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function sanitizeFontSize(value, fallback) {
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const raw = String(value || '').trim();
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const parsed = Math.round(Number(raw.replace(/[^0-9.]/g, '')));
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if (Number.isFinite(parsed) && parsed > 0) {
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return parsed;
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}
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return Math.max(8, Number(fallback || DEFAULT_FONT_SIZE));
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}
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function getTextRegionStyle(body, region, existingContent) {
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const existing = existingContent && existingContent[region.region_key] ? existingContent[region.region_key] : {};
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const fontFamily = String(body[`region_font_family_${region.id}`] || existing.font_family || region.font_family || 'Arial').trim() || 'Arial';
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const fontSize = sanitizeFontSize(body[`region_font_size_${region.id}`], existing.font_size || DEFAULT_FONT_SIZE);
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const fontColor = sanitizeTextColor(body[`region_font_color_${region.id}`] || existing.font_color || region.font_color || '#000000');
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return {
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font_family: fontFamily,
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font_size: fontSize,
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font_color: fontColor
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};
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}
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function buildTemplateContent(template, body, filesByField, existingContent) {
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const content = {};
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template.regions.forEach((region) => {
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if (region.region_type === 'image') {
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const uploaded = filesByField[`region_image_${region.id}`];
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const existing = body[`existing_region_image_${region.id}`];
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content[region.region_key] = {
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type: 'image',
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value: uploaded ? `/media/uploads/${uploaded.filename}` : String(existing || '').trim() || ((existingContent && existingContent[region.region_key]) ? existingContent[region.region_key].value : '')
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};
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} else if (region.region_type === 'video') {
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const uploaded = filesByField[`region_video_${region.id}`];
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const existing = body[`existing_region_video_${region.id}`];
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const durationValue = body[`existing_region_video_duration_${region.id}`];
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const existingDuration = existingContent && existingContent[region.region_key] ? Number(existingContent[region.region_key].duration_seconds || 0) : 0;
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const parsedDuration = Number(durationValue || existingDuration || 0);
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const normalizedDuration = Math.round(parsedDuration * 1000) / 1000;
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content[region.region_key] = {
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type: 'video',
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value: uploaded ? `/media/uploads/${uploaded.filename}` : String(existing || '').trim() || ((existingContent && existingContent[region.region_key]) ? existingContent[region.region_key].value : ''),
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duration_seconds: Number.isFinite(normalizedDuration) && normalizedDuration > 0 ? normalizedDuration : null
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};
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} else if (region.region_type === 'webpage') {
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const submitted = body[`region_webpage_${region.id}`];
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const current = existingContent && existingContent[region.region_key] ? existingContent[region.region_key].value : '';
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content[region.region_key] = {
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type: 'webpage',
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value: submitted === undefined ? current : String(submitted || '').trim()
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};
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} else if (region.region_type === 'rtmp') {
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const submitted = body[`region_rtmp_${region.id}`];
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const current = existingContent && existingContent[region.region_key] ? existingContent[region.region_key] : {};
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content[region.region_key] = {
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type: 'rtmp',
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value: submitted === undefined ? String(current.value || '').trim() : String(submitted || '').trim(),
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disable_audio: Boolean(body[`region_disable_audio_${region.id}`])
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};
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} else if (region.region_type === 'html') {
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const submitted = body[`region_html_${region.id}`];
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const current = existingContent && existingContent[region.region_key] ? existingContent[region.region_key].value : '';
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content[region.region_key] = {
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type: 'html',
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value: submitted === undefined ? current : String(submitted || '')
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};
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} else if (region.region_type === 'rss') {
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const submitted = body[`region_text_${region.id}`];
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const current = existingContent && existingContent[region.region_key] ? existingContent[region.region_key] : {};
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const style = getTextRegionStyle(body, region, existingContent);
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const feedId = body[`region_rss_feed_id_${region.id}`];
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const itemNumber = body[`region_rss_item_number_${region.id}`];
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const parsedItemNumber = Math.max(1, Number(itemNumber || current.item_number || 1));
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content[region.region_key] = {
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type: 'rss',
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value: submitted === undefined ? String(current.value || '') : String(submitted || ''),
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feed_id: feedId === undefined || feedId === null || feedId === '' ? (current.feed_id || null) : Number(feedId),
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item_number: Number.isFinite(parsedItemNumber) && parsedItemNumber > 0 ? parsedItemNumber : 1,
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variable_name: 'item',
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font_family: style.font_family,
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font_size: style.font_size,
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font_color: style.font_color
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};
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} else if (region.region_type === 'api') {
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const submitted = body[`region_text_${region.id}`];
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const current = existingContent && existingContent[region.region_key] ? existingContent[region.region_key] : {};
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const style = getTextRegionStyle(body, region, existingContent);
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const sourceId = body[`region_api_source_id_${region.id}`];
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const itemNumber = body[`region_api_item_number_${region.id}`];
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const parsedItemNumber = Math.max(1, Number(itemNumber || current.item_number || 1));
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content[region.region_key] = {
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type: 'api',
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value: submitted === undefined ? String(current.value || '') : String(submitted || ''),
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source_id: sourceId === undefined || sourceId === null || sourceId === '' ? (current.source_id || null) : Number(sourceId),
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item_number: Number.isFinite(parsedItemNumber) && parsedItemNumber > 0 ? parsedItemNumber : 1,
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variable_name: 'item',
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font_family: style.font_family,
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font_size: style.font_size,
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font_color: style.font_color
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};
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} else {
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const submitted = body[`region_text_${region.id}`];
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const current = existingContent && existingContent[region.region_key] ? existingContent[region.region_key].value : '';
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const style = getTextRegionStyle(body, region, existingContent);
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content[region.region_key] = {
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type: 'text',
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value: submitted === undefined ? current : String(submitted),
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font_family: style.font_family,
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font_size: style.font_size,
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font_color: style.font_color
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};
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}
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});
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return content;
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}
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async function buildSlidePayload(pool, req, existingSlide) {
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const title = String(req.body.title || '').trim();
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const templateId = req.body.template_id ? Number(req.body.template_id) : null;
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const filesByField = getFilesByField(req.files || []);
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const template = templateId ? await fetchTemplateById(pool, templateId) : null;
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const existingContent = existingSlide ? parseJsonSafe(existingSlide.content_json) || {} : {};
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if (!title) {
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const error = new Error('Slide title is required.');
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error.statusCode = 400;
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throw error;
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}
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if (templateId && !template) {
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const error = new Error('Template not found.');
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error.statusCode = 400;
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throw error;
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}
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if (template) {
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return {
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title,
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templateId: template.id,
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contentJson: JSON.stringify(buildTemplateContent(template, req.body, filesByField, existingContent))
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};
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}
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return {
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title,
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templateId: null,
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contentJson: existingSlide ? existingSlide.content_json : null
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};
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}
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module.exports = {
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fetchSlideById,
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buildSlidePayload
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};
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