Washington Law MCP Server

import axios from 'axios'; import * as cheerio from 'cheerio'; import Database from 'better-sqlite3'; import { join, dirname } from 'path'; import { fileURLToPath } from 'url'; // @ts-ignore - pdf-parse doesn't have types import pdfParse from 'pdf-parse'; const __filename = fileURLToPath(import.meta.url); const __dirname = dirname(__filename); const DB_PATH = join(__dirname, '../../data/washington-laws.db'); const BASE_URL = 'https://www.courts.wa.gov'; interface CourtRulePDF { ruleSet: string; ruleNumber: string; ruleName: string; pdfUrl: string; } class CourtRulesPDFScraper { private db: Database.Database; private insertStmt: Database.Statement; constructor() { this.db = new Database(DB_PATH); this.insertStmt = this.db.prepare(` INSERT OR REPLACE INTO court_rules ( rule_set, rule_number, rule_name, full_text, updated_at ) VALUES (?, ?, ?, ?, CURRENT_TIMESTAMP) `); } async delay(ms: number): Promise<void> { return new Promise(resolve => setTimeout(resolve, ms)); } async scrapeAll(): Promise<void> { console.log('Starting Court Rules PDF scraper...\n'); // Scrape IRLJ rules await this.scrapeRuleSet('IRLJ', 'Infraction Rules for Courts of Limited Jurisdiction'); // Scrape CRLJ rules await this.scrapeRuleSet('CRLJ', 'Civil Rules for Courts of Limited Jurisdiction'); this.printStats(); this.db.close(); } async scrapeRuleSet(ruleSet: string, description: string): Promise<void> { console.log(`\nProcessing ${ruleSet} - ${description}`); try { // Get list of PDF rules const listUrl = `${BASE_URL}/court_rules/?fa=court_rules.list&group=clj&set=${ruleSet}`; console.log(` Fetching rule list from: ${listUrl}`); const response = await axios.get(listUrl); const $ = cheerio.load(response.data); const rules: CourtRulePDF[] = []; // Find all PDF links $('a').each((_, element) => { const href = $(element).attr('href'); const text = $(element).text().trim(); // Match PDF links like "../court_rules/pdf/IRLJ/CLJ_IRLJ_01_01_00.pdf" if (href && href.includes('.pdf') && href.includes(ruleSet)) { // Extract rule number from filename const fileMatch = href.match(/CLJ_[A-Z]+_(\d+)_(\d+)_\d+\.pdf/i); if (fileMatch) { const ruleNumber = `${parseInt(fileMatch[1])}.${parseInt(fileMatch[2])}`; // Build full URL let pdfUrl = href; if (href.startsWith('../')) { pdfUrl = `${BASE_URL}/${href.substring(3)}`; } else if (!href.startsWith('http')) { pdfUrl = `${BASE_URL}${href.startsWith('/') ? '' : '/'}${href}`; } // Extract rule name from text or use default const ruleName = text.replace(new RegExp(`${ruleSet}\\s+${ruleNumber}\\s*`, 'i'), '').trim() || `Rule ${ruleNumber}`; // Avoid duplicates if (!rules.find(r => r.ruleNumber === ruleNumber)) { rules.push({ ruleSet, ruleNumber, ruleName, pdfUrl }); } } } }); console.log(` Found ${rules.length} PDF rules to download and parse`); // Download and parse each PDF for (let i = 0; i < rules.length; i++) { const rule = rules[i]; console.log(` Processing ${ruleSet} ${rule.ruleNumber}...`); try { await this.downloadAndParseRule(rule); } catch (error) { console.error(` Error: ${(error as Error).message}`); } if ((i + 1) % 5 === 0) { console.log(` Processed ${i + 1}/${rules.length} rules`); } await this.delay(500); // Be respectful } console.log(` ✓ Completed ${ruleSet}: ${rules.length} rules`); } catch (error) { console.error(`Error scraping ${ruleSet}:`, error); } } async downloadAndParseRule(rule: CourtRulePDF): Promise<void> { try { // Download PDF const response = await axios.get(rule.pdfUrl, { responseType: 'arraybuffer' }); // Parse PDF to text const pdfData = await pdfParse(response.data); // Clean up the text let fullText = pdfData.text .replace(/\r\n/g, '\n') .replace(/\n{3,}/g, '\n\n') .replace(/\s+/g, ' ') .trim(); // Try to extract just the rule content (remove headers/footers) const ruleStart = fullText.search(new RegExp(`${rule.ruleSet}\\s+${rule.ruleNumber}`, 'i')); if (ruleStart > 0) { fullText = fullText.substring(ruleStart); } // Remove common footer text fullText = fullText .replace(/Page \d+ of \d+/gi, '') .replace(/Effective \d+\/\d+\/\d+/gi, '') .trim(); // Extract rule name from the text if not already set if (!rule.ruleName || rule.ruleName === `Rule ${rule.ruleNumber}`) { const nameMatch = fullText.match(new RegExp(`${rule.ruleSet}\\s+${rule.ruleNumber}\\s+([A-Z][^.]+)`, 'i')); if (nameMatch) { rule.ruleName = nameMatch[1].trim(); } } // Save to database this.insertStmt.run( rule.ruleSet, rule.ruleNumber, rule.ruleName, fullText ); } catch (error) { throw new Error(`Failed to process PDF: ${(error as Error).message}`); } } private printStats(): void { const stats = this.db.prepare(` SELECT rule_set, COUNT(*) as count FROM court_rules GROUP BY rule_set `).all() as any[]; console.log('\n=== Court Rules PDF Scraping Complete ==='); for (const stat of stats) { console.log(` ${stat.rule_set}: ${stat.count} rules`); } const total = this.db.prepare('SELECT COUNT(*) as count FROM court_rules').get() as any; console.log(` Total: ${total.count} court rules`); } } // Run the scraper if (import.meta.url === `file://${process.argv[1]}`) { const scraper = new CourtRulesPDFScraper(); scraper.scrapeAll().catch(console.error); }