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type { \n BlobStorageResult, \n PdfMetadata, \n PdfGenerationResult \n} from \"../../shared/types.ts\";\n\n// Val Town blob storage functions\ndeclare global {\n function setBlob(key: string, data: Uint8Array | string): Promise;\n function getBlob(key: string): Promise;\n function listBlobs(prefix?: string): Promise;\n function deleteBlob(key: string): Promise;\n}\n\nexport class BlobManagerService {\n private baseUrl: string;\n\n constructor(baseUrl: string) {\n this.baseUrl = baseUrl;\n }\n\n async savePdf(result: PdfGenerationResult): Promise {\n try {\n // Generate blob key with organization and timestamp\n const blobKey = this.generateBlobKey(result.metadata.orgName, result.filename);\n \n // Save PDF binary data\n await setBlob(blobKey, result.pdfBuffer);\n \n // Save metadata separately for easier querying\n const metadataKey = `${blobKey}.metadata`;\n const metadataJson = JSON.stringify(result.metadata, null, 2);\n await setBlob(metadataKey, metadataJson);\n\n // Generate download URL\n const downloadUrl = `${this.baseUrl}/api/download/${blobKey}`;\n\n console.log(`PDF saved to blob storage: ${blobKey} (${result.metadata.fileSize} bytes)`);\n\n return {\n blobKey,\n downloadUrl,\n metadata: result.metadata\n };\n\n } catch (error) {\n console.error(\"Failed to save PDF to blob storage:\", error);\n throw new Error(`Blob storage failed: ${error instanceof Error ? error.message : String(error)}`);\n }\n }\n\n async getPdf(blobKey: string): Promise<{ data: Uint8Array; metadata: PdfMetadata } | null> {\n try {\n // Get PDF data\n const pdfData = await getBlob(blobKey);\n if (!pdfData) {\n return null;\n }\n\n // Get metadata\n const metadataKey = `${blobKey}.metadata`;\n const metadataBlob = await getBlob(metadataKey);\n \n let metadata: PdfMetadata;\n if (metadataBlob) {\n const metadataJson = new TextDecoder().decode(metadataBlob);\n metadata = JSON.parse(metadataJson);\n } else {\n // Fallback metadata if not found\n metadata = {\n filename: blobKey.split('/').pop() || 'unknown.pdf',\n originalHtmlLength: 0,\n generatedAt: new Date().toISOString(),\n options: {},\n orgName: blobKey.split('/')[0] || 'unknown',\n fileSize: pdfData.length\n };\n }\n\n return {\n data: pdfData,\n metadata\n };\n\n } catch (error) {\n console.error(`Failed to retrieve PDF from blob storage: ${blobKey}`, error);\n return null;\n }\n }\n\n async listPdfs(orgName?: string): Promise<{ blobKey: string; metadata?: PdfMetadata }[]> {\n try {\n const prefix = orgName ? `${this.sanitizeOrgName(orgName)}/` : \"\";\n const blobKeys = await listBlobs(prefix);\n \n // Filter out metadata files and only get PDF files\n const pdfKeys = blobKeys.filter(key => \n key.endsWith('.pdf') && !key.endsWith('.metadata')\n );\n\n const results = await Promise.all(\n pdfKeys.map(async (blobKey) => {\n try {\n const metadataKey = `${blobKey}.metadata`;\n const metadataBlob = await getBlob(metadataKey);\n \n let metadata: PdfMetadata | undefined;\n if (metadataBlob) {\n const metadataJson = new TextDecoder().decode(metadataBlob);\n metadata = JSON.parse(metadataJson);\n }\n\n return { blobKey, metadata };\n } catch (error) {\n console.warn(`Failed to load metadata for ${blobKey}:`, error);\n return { blobKey };\n }\n })\n );\n\n return results;\n\n } catch (error) {\n console.error(\"Failed to list PDFs from blob storage:\", error);\n return [];\n }\n }\n\n async deletePdf(blobKey: string): Promise {\n try {\n // Delete PDF data\n await deleteBlob(blobKey);\n \n // Delete metadata\n const metadataKey = `${blobKey}.metadata`;\n try {\n await deleteBlob(metadataKey);\n } catch (metadataError) {\n console.warn(`Metadata deletion failed for ${blobKey}:`, metadataError);\n }\n\n console.log(`PDF deleted from blob storage: ${blobKey}`);\n return true;\n\n } catch (error) {\n console.error(`Failed to delete PDF from blob storage: ${blobKey}`, error);\n return false;\n }\n }\n\n private generateBlobKey(orgName: string, filename: string): string {\n const sanitizedOrgName = this.sanitizeOrgName(orgName);\n const timestamp = new Date().toISOString().replace(/[:.]/g, '-');\n \n // Ensure filename ends with .pdf\n const pdfFilename = filename.endsWith('.pdf') ? filename : `${filename}.pdf`;\n \n return `${sanitizedOrgName}/${timestamp}-${pdfFilename}`;\n }\n\n private sanitizeOrgName(orgName: string): string {\n return orgName.replace(/[^a-zA-Z0-9_-]/g, '').toLowerCase() || 'default';\n }\n\n // Helper method to get file size in a human readable format\n static formatFileSize(bytes: number): string {\n if (bytes === 0) return '0 Bytes';\n const k = 1024;\n const sizes = ['Bytes', 'KB', 'MB', 'GB'];\n const i = Math.floor(Math.log(bytes) / Math.log(k));\n return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];\n }\n\n // Helper method to validate blob key format\n static isValidBlobKey(blobKey: string): boolean {\n // Basic validation: should contain org/filename pattern and end with .pdf\n const pattern = /^[a-zA-Z0-9_-]+\\/[\\w\\-\\.]+\\.pdf$/;\n return pattern.test(blobKey);\n }\n}\n",[],[151,170,177],{"_102":185,"_95":186,"_152":187,"_154":171,"_155":137,"_156":188,"_158":159,"_104":189,"_99":32,"_161":180,"_163":190,"_164":22,"_165":-5,"_166":191,"_98":192},"80f3a4ae-478b-11f0-a115-76b3cceeab13","pdf-generator.ts","80f3a576-478b-11f0-a115-76b3cceeab13",5,["D",1749732493789],"import puppeteer from \"npm:puppeteer@21.0.0\";\nimport type { \n PdfGenerationOptions, \n PdfGenerationResult, \n PdfMetadata,\n PdfGenerationError \n} from \"../../shared/types.ts\";\nimport { DEFAULT_PDF_OPTIONS } from \"../../shared/types.ts\";\n\nexport class PdfGeneratorService {\n private timeoutMs: number;\n\n constructor(timeoutMs: number = 30000) {\n this.timeoutMs = timeoutMs;\n }\n\n async generatePdf(\n html: string, \n filename: string,\n orgName: string,\n options: PdfGenerationOptions = {}\n ): Promise {\n const startTime = Date.now();\n let browser: any = null;\n\n try {\n // Validate input\n this.validateInputs(html, filename);\n\n // Merge with default options\n const pdfOptions = { ...DEFAULT_PDF_OPTIONS, ...options };\n\n // Launch Puppeteer browser\n browser = await puppeteer.launch({\n headless: true,\n args: [\n '--no-sandbox',\n '--disable-setuid-sandbox',\n '--disable-dev-shm-usage',\n '--disable-gpu',\n '--no-first-run',\n '--no-zygote',\n '--single-process'\n ]\n });\n\n const page = await browser.newPage();\n\n // Set timeout for the page\n page.setDefaultTimeout(this.timeoutMs);\n\n // Set content and wait for it to load\n await page.setContent(html, { \n waitUntil: ['networkidle0', 'domcontentloaded'],\n timeout: this.timeoutMs \n });\n\n // Generate PDF with specified options\n const pdfBuffer = await page.pdf({\n format: pdfOptions.format,\n landscape: pdfOptions.orientation === \"landscape\",\n margin: pdfOptions.margin,\n printBackground: pdfOptions.printBackground,\n preferCSSPageSize: pdfOptions.preferCSSPageSize,\n scale: pdfOptions.scale,\n width: pdfOptions.width,\n height: pdfOptions.height,\n timeout: this.timeoutMs\n });\n\n const processingTime = Date.now() - startTime;\n\n // Create metadata\n const metadata: PdfMetadata = {\n filename,\n originalHtmlLength: html.length,\n generatedAt: new Date().toISOString(),\n options: pdfOptions,\n orgName,\n fileSize: pdfBuffer.length\n };\n\n return {\n pdfBuffer: new Uint8Array(pdfBuffer),\n filename,\n processingTime,\n metadata\n };\n\n } catch (error) {\n const processingTime = Date.now() - startTime;\n console.error(\"PDF generation failed:\", error);\n \n // Determine error type\n let errorType: PdfGenerationError = \"GENERATION_FAILED\";\n if (error instanceof Error) {\n if (error.message.includes(\"timeout\")) {\n errorType = \"TIMEOUT\";\n } else if (error.message.includes(\"Invalid\")) {\n errorType = \"INVALID_HTML\";\n }\n }\n\n throw new Error(`PDF generation failed (${errorType}): ${error instanceof Error ? error.message : String(error)}`);\n } finally {\n // Always close the browser\n if (browser) {\n try {\n await browser.close();\n } catch (closeError) {\n console.warn(\"Error closing browser:\", closeError);\n }\n }\n }\n }\n\n private validateInputs(html: string, filename: string): void {\n if (!html || html.trim().length === 0) {\n throw new Error(\"HTML content cannot be empty\");\n }\n\n if (html.length > 5 * 1024 * 1024) { // 5MB limit\n throw new Error(\"HTML content too large (max 5MB)\");\n }\n\n if (!filename || filename.trim().length === 0) {\n throw new Error(\"Filename cannot be empty\");\n }\n\n // Validate filename (basic sanitization)\n const sanitizedFilename = filename.replace(/[^a-zA-Z0-9._-]/g, '');\n if (sanitizedFilename !== filename) {\n throw new Error(\"Filename contains invalid characters\");\n }\n }\n\n // Generate a sanitized filename if not provided\n static generateFilename(orgName: string, customName?: string): string {\n const timestamp = new Date().toISOString().replace(/[:.]/g, '-');\n const baseName = customName || `pdf-${timestamp}`;\n const sanitizedOrgName = orgName.replace(/[^a-zA-Z0-9]/g, '');\n const sanitizedBaseName = baseName.replace(/[^a-zA-Z0-9._-]/g, '');\n \n return `${sanitizedOrgName}-${sanitizedBaseName}.pdf`;\n }\n\n // Validate PDF generation options\n static validateOptions(options: PdfGenerationOptions): PdfGenerationOptions {\n const validatedOptions = { ...options };\n\n // Validate format\n const validFormats = [\"A4\", \"A3\", \"A5\", \"Letter\", \"Legal\"];\n if (options.format && !validFormats.includes(options.format)) {\n validatedOptions.format = \"A4\";\n }\n\n // Validate orientation\n const validOrientations = [\"portrait\", \"landscape\"];\n if (options.orientation && !validOrientations.includes(options.orientation)) {\n validatedOptions.orientation = \"portrait\";\n }\n\n // Validate scale\n if (options.scale && (options.scale < 0.1 || options.scale > 2)) {\n validatedOptions.scale = 1;\n }\n\n return validatedOptions;\n }\n}\n",[],[151,170,186],[151,170],[151],{"_102":196,"_95":197,"_152":198,"_154":-5,"_155":137,"_156":199,"_158":159,"_104":200,"_99":32,"_161":162,"_163":-5,"_164":22,"_165":-5,"_166":201,"_98":211},"5ef9162c-478b-11f0-ac01-76b3cceeab13","shared","5ef916f4-478b-11f0-ac01-76b3cceeab13",1,["D",1749732436780],[202],{"_102":203,"_95":204,"_152":205,"_154":198,"_155":137,"_156":206,"_158":159,"_104":207,"_99":32,"_161":180,"_163":208,"_164":22,"_165":-5,"_166":209,"_98":210},"73c97fa6-478b-11f0-b88a-76b3cceeab13","types.ts","73c9805a-478b-11f0-b88a-76b3cceeab13",4,["D",1749732471702],"// HTML to PDF conversion request\nexport interface HtmlToPdfRequest {\n html: string;\n filename?: string;\n orgName?: string;\n options?: PdfGenerationOptions;\n}\n\n// PDF generation options\nexport interface PdfGenerationOptions {\n format?: \"A4\" | \"A3\" | \"A5\" | \"Letter\" | \"Legal\";\n orientation?: \"portrait\" | \"landscape\";\n margin?: {\n top?: string;\n right?: string;\n bottom?: string;\n left?: string;\n };\n printBackground?: boolean;\n preferCSSPageSize?: boolean;\n scale?: number;\n width?: string;\n height?: string;\n}\n\n// API response after PDF generation\nexport interface HtmlToPdfResponse {\n success: boolean;\n blobKey?: string;\n filename?: string;\n fileSize?: number;\n processingTime: number;\n error?: string;\n downloadUrl?: string;\n}\n\n// Internal PDF generation result\nexport interface PdfGenerationResult {\n pdfBuffer: Uint8Array;\n filename: string;\n processingTime: number;\n metadata: PdfMetadata;\n}\n\n// PDF metadata for blob storage\nexport interface PdfMetadata {\n filename: string;\n originalHtmlLength: number;\n generatedAt: string;\n options: PdfGenerationOptions;\n orgName: string;\n fileSize: number;\n}\n\n// Blob storage result\nexport interface BlobStorageResult {\n blobKey: string;\n downloadUrl: string;\n metadata: PdfMetadata;\n}\n\n// Error types for better error handling\nexport type PdfGenerationError = \n | \"INVALID_HTML\"\n | \"GENERATION_FAILED\" \n | \"STORAGE_FAILED\"\n | \"INVALID_OPTIONS\"\n | \"TIMEOUT\";\n\n// Configuration for the API\nexport interface ApiConfig {\n maxHtmlSize: number;\n defaultFormat: PdfGenerationOptions[\"format\"];\n defaultOrientation: PdfGenerationOptions[\"orientation\"];\n timeoutMs: number;\n allowedOrigins: string[];\n}\n\n// Default PDF generation options\nexport const DEFAULT_PDF_OPTIONS: PdfGenerationOptions = {\n format: \"A4\",\n orientation: \"portrait\",\n margin: {\n top: \"1cm\",\n right: \"1cm\", \n bottom: \"1cm\",\n left: \"1cm\"\n },\n printBackground: true,\n preferCSSPageSize: false,\n scale: 1\n};\n\n// Default API configuration \nexport const DEFAULT_API_CONFIG: ApiConfig = {\n maxHtmlSize: 5 * 1024 * 1024, // 5MB\n defaultFormat: \"A4\",\n defaultOrientation: \"portrait\", \n timeoutMs: 30000, // 30 seconds\n allowedOrigins: 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prashamtrivedi

html-to-pdf-api

Environment variables