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Inspect the WAEC website's form structure\n // 2. Handle any CSRF tokens or session management\n // 3. Parse the actual HTML response structure\n \n console.log(\"WAEC API called with:\", request);\n \n // Mock successful response for demonstration\n return {\n success: true,\n data: {\n studentInfo: {\n name: \"Sample Student Name\",\n examNumber: request.examNumber,\n examYear: request.examYear,\n examType: request.examType,\n center: \"Sample Examination Center\"\n },\n results: [\n { subject: \"Mathematics\", grade: \"A1\" },\n { subject: \"English Language\", grade: \"B2\" },\n { subject: \"Physics\", grade: \"B3\" },\n { subject: \"Chemistry\", grade: \"C4\" },\n { subject: \"Biology\", grade: \"C5\" },\n { subject: \"Geography\", grade: \"B2\" },\n { subject: \"Economics\", grade: \"B3\" },\n { subject: \"Government\", grade: \"C4\" },\n { subject: \"Literature in English\", grade: \"C5\" }\n ]\n }\n };\n\n // Uncomment and modify the code below when you have analyzed the WAEC website structure:\n // Step 1: Get the initial form page to extract any required tokens/cookies\n const initialResponse = await fetch(`${this.baseUrl}/`, {\n headers: {\n 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36',\n 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*;q=0.8',\n 'Accept-Language': 'en-US,en;q=0.5',\n 'Accept-Encoding': 'gzip, deflate, br',\n 'Connection': 'keep-alive',\n 'Upgrade-Insecure-Requests': '1',\n }\n });\n \n if (!initialResponse.ok) {\n throw new Error(`Failed to load WAEC website: ${initialResponse.status}`);\n }\n\n const initialHtml = await initialResponse.text();\n \n // Extract cookies and any CSRF tokens\n const cookies = this.extractCookies(initialResponse.headers);\n const csrfToken = this.extractCSRFToken(initialHtml);\n \n // Step 2: Submit the form data\n const formData = this.prepareFormData(request, csrfToken);\n const submitResponse = await this.submitForm(formData, cookies);\n \n if (!submitResponse.ok) {\n throw new Error(`Form submission failed: ${submitResponse.status}`);\n }\n\n const resultHtml = await submitResponse.text();\n \n // Step 3: Parse the results from the HTML response\n const parsedResults = this.parseResults(resultHtml);\n \n return {\n success: true,\n data: parsedResults\n };\n */\n\n } catch (error) {\n console.error(\"WAEC scraping error:\", error);\n return {\n success: false,\n error: error instanceof Error ? error.message : \"Unknown error occurred\"\n };\n }\n }\n\n private validateRequest(request: WAECRequest): { valid: boolean; error?: string } {\n if (!request.examNumber || request.examNumber.trim().length === 0) {\n return { valid: false, error: \"Exam number is required\" };\n }\n \n if (!request.examYear || request.examYear.trim().length === 0) {\n return { valid: false, error: \"Exam year is required\" };\n }\n \n if (!request.examType || request.examType.trim().length === 0) {\n return { valid: false, error: \"Exam type is required\" };\n }\n \n if (!request.cardPin || request.cardPin.trim().length === 0) {\n return { valid: false, error: \"Card PIN is required\" };\n }\n\n // Basic format validation\n if (!/^\\d{10}$/.test(request.examNumber.trim())) {\n return { valid: false, error: \"Exam number must be 10 digits\" };\n }\n\n if (!/^\\d{4}$/.test(request.examYear.trim())) {\n return { valid: false, error: \"Exam year must be 4 digits\" };\n }\n\n return { valid: true };\n }\n\n private extractCookies(headers: Headers): string {\n const setCookieHeaders = headers.get('set-cookie');\n if (!setCookieHeaders) return '';\n \n // Extract cookie values (simplified - in production you'd want more robust parsing)\n return setCookieHeaders.split(',').map(cookie => \n cookie.split(';')[0].trim()\n ).join('; ');\n }\n\n private extractCSRFToken(html: string): string | null {\n // Look for common CSRF token patterns in the HTML\n const patterns = [\n /__RequestVerificationToken[^>]*value=\"([^\"]+)\"/i,\n /name=\"csrf_token\"[^>]*value=\"([^\"]+)\"/i,\n /name=\"_token\"[^>]*value=\"([^\"]+)\"/i,\n /csrf[^>]*value=\"([^\"]+)\"/i\n ];\n \n for (const pattern of patterns) {\n const match = html.match(pattern);\n if (match) {\n return match[1];\n }\n }\n \n return null;\n }\n\n private prepareFormData(request: WAECRequest, csrfToken?: string | null): WAECFormData & { [key: string]: string } {\n const formData: any = {\n ExamNumber: request.examNumber.trim(),\n ExamYear: request.examYear.trim(),\n ExamType: request.examType.trim(),\n PIN: request.cardPin.trim()\n };\n \n // Add CSRF token if found\n if (csrfToken) {\n formData.__RequestVerificationToken = csrfToken;\n formData.csrf_token = csrfToken;\n formData._token = csrfToken;\n }\n \n return formData;\n }\n\n private async submitForm(formData: WAECFormData, cookies: string): Promise {\n // Create form data for submission\n const form = new FormData();\n form.append('ExamNumber', formData.ExamNumber);\n form.append('ExamYear', formData.ExamYear);\n form.append('ExamType', formData.ExamType);\n form.append('PIN', formData.PIN);\n\n const headers: Record = {\n 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36',\n 'Referer': this.baseUrl,\n 'Origin': this.baseUrl,\n };\n\n if (cookies) {\n headers['Cookie'] = cookies;\n }\n\n // Submit to the results endpoint (you may need to adjust this URL based on the actual WAEC form)\n return fetch(`${this.baseUrl}/CheckResult.aspx`, {\n method: 'POST',\n headers,\n body: form,\n });\n }\n\n private parseResults(html: string): { studentInfo: any; results: any[] } {\n // This is a simplified parser - you'll need to adjust based on actual WAEC HTML structure\n const studentInfo = this.extractStudentInfo(html);\n const results = this.extractSubjectResults(html);\n\n return {\n studentInfo,\n results\n };\n }\n\n private extractStudentInfo(html: string): any {\n // Parse student information from HTML\n // This is a placeholder - you'll need to implement based on actual WAEC HTML structure\n const studentInfo: any = {};\n\n // Example patterns (adjust based on actual HTML):\n const nameMatch = html.match(/Name[:\\s]*([^<\\n]+)/i);\n if (nameMatch) {\n studentInfo.name = nameMatch[1].trim();\n }\n\n const centerMatch = html.match(/Center[:\\s]*([^<\\n]+)/i);\n if (centerMatch) {\n studentInfo.center = centerMatch[1].trim();\n }\n\n return studentInfo;\n }\n\n private extractSubjectResults(html: string): any[] {\n // Parse subject results from HTML\n // This is a placeholder - you'll need to implement based on actual WAEC HTML structure\n const results: any[] = [];\n\n // Example: Look for table rows with subject and grade information\n // You'll need to adjust these patterns based on the actual WAEC results page structure\n const tableRowPattern = /]*>.*?<\\/tr>/gi;\n const rows = html.match(tableRowPattern) || [];\n\n for (const row of rows) {\n // Extract subject and grade from each row\n const cellPattern = /]*>(.*?)<\\/td>/gi;\n const cells = [];\n let match;\n \n while ((match = cellPattern.exec(row)) !== null) {\n cells.push(match[1].trim().replace(/<[^>]*>/g, ''));\n }\n\n // Assuming format: [Subject, Grade] - adjust based on actual structure\n if (cells.length >= 2 && cells[0] && cells[1]) {\n results.push({\n subject: cells[0],\n grade: cells[1]\n });\n }\n }\n\n return results;\n }\n}","deleted","label",[167,168,149],"backend","services","permalink","https://www.val.town/x/seyistry/waec_api/code/backend/services/waec-scraper.ts","extension","actionData","errors"]