This commit is contained in:
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# This file is intentionally left empty to make the directory a Python package
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@@ -0,0 +1,564 @@
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from app.utils.browser_utils import safe_browser_operation
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async def visit_url_service(decoded_url):
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"""Service function to visit a URL and get its content"""
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print(f"Visiting URL: {decoded_url}")
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# Define the operation to perform with the browser
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async def visit_operation(page):
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try:
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response = await page.goto(decoded_url, waitUntil='networkidle2', timeout=30000)
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if not response:
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print(f"Warning: No response object returned for {decoded_url}")
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# Get page content
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content = await page.content()
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return {"status": "success", "content": content}
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except Exception as e:
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print(f"Error during page navigation: {e}")
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# Try to get content anyway
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try:
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content = await page.content()
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return {"status": "partial", "content": content, "error": str(e)}
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except:
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raise Exception(f"Failed to get page content: {str(e)}")
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# Perform the operation
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return await safe_browser_operation(decoded_url, visit_operation)
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async def extract_seo_service(decoded_url):
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"""Service function to extract SEO information from a website"""
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print(f"Extracting SEO from: {decoded_url}")
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# Define the operation to perform with the browser
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async def seo_operation(page):
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try:
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response = await page.goto(decoded_url, waitUntil='networkidle2', timeout=30000)
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# Extract SEO information
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seo_data = await page.evaluate('''() => {
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const data = {
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title: document.title || '',
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description: '',
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canonical: '',
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h1: [],
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h2: [],
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images: 0,
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links: 0
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};
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// Get meta description
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const metaDescription = document.querySelector('meta[name="description"]');
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if (metaDescription) {
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data.description = metaDescription.getAttribute('content') || '';
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}
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// Get canonical link
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const canonicalLink = document.querySelector('link[rel="canonical"]');
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if (canonicalLink) {
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data.canonical = canonicalLink.getAttribute('href') || '';
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}
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// Get h1 tags
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document.querySelectorAll('h1').forEach(h1 => {
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const text = h1.innerText.trim();
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if (text) data.h1.push(text);
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});
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// Get h2 tags
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document.querySelectorAll('h2').forEach(h2 => {
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const text = h2.innerText.trim();
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if (text) data.h2.push(text);
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});
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// Count images
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data.images = document.querySelectorAll('img').length;
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// Count links
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data.links = document.querySelectorAll('a').length;
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return data;
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}''')
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result = {
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"status": "success",
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"url": decoded_url,
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"seo": seo_data
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}
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return result
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except Exception as e:
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print(f"Error during SEO extraction: {e}")
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return {"status": "error", "url": decoded_url, "error": str(e)}
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# Perform the operation
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return await safe_browser_operation(decoded_url, seo_operation)
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async def extract_meta_tags_service(decoded_url):
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"""Service function to extract meta tags from a website"""
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print(f"Extracting meta tags from: {decoded_url}")
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# Define the operation to perform with the browser
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async def meta_operation(page):
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try:
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response = await page.goto(decoded_url, waitUntil='networkidle2', timeout=30000)
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# Extract all meta tags
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meta_tags = await page.evaluate('''() => {
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const metas = Array.from(document.querySelectorAll('meta'));
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return metas.map(meta => {
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const attributes = {};
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Array.from(meta.attributes).forEach(attr => {
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attributes[attr.name] = attr.value;
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});
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return attributes;
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});
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}''')
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# Extract Open Graph tags
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og_tags = await page.evaluate('''() => {
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const ogTags = {};
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document.querySelectorAll('meta[property^="og:"]').forEach(tag => {
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const property = tag.getAttribute('property');
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ogTags[property] = tag.getAttribute('content');
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});
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return ogTags;
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}''')
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# Extract Twitter card tags
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twitter_tags = await page.evaluate('''() => {
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const twitterTags = {};
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document.querySelectorAll('meta[name^="twitter:"]').forEach(tag => {
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const name = tag.getAttribute('name');
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twitterTags[name] = tag.getAttribute('content');
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});
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return twitterTags;
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}''')
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result = {
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"status": "success",
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"url": decoded_url,
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"meta_tags": meta_tags,
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"open_graph": og_tags,
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"twitter_card": twitter_tags,
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"title": await page.title()
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}
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return result
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except Exception as e:
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print(f"Error during meta tag extraction: {e}")
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return {"status": "error", "url": decoded_url, "error": str(e)}
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# Perform the operation
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return await safe_browser_operation(decoded_url, meta_operation)
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async def detect_pagination_service(decoded_url):
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"""Service function to detect pagination on a website"""
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print(f"Detecting pagination on: {decoded_url}")
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# Define the operation to perform with the browser
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async def pagination_operation(page):
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try:
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# Navigate to the URL
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await page.goto(decoded_url, waitUntil='networkidle2', timeout=30000)
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original_url = page.url
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print(f"Successfully loaded page: {original_url}")
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# Analyze the page for pagination information
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pagination_info = await page.evaluate('''() => {
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// Find the last page number if available
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const findLastPageNumber = () => {
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// Get all links on the page
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const links = Array.from(document.querySelectorAll('a'));
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// Strategy 1: Find numeric links (page numbers)
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const numericLinks = links.filter(link => {
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const text = link.innerText.trim();
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return /^[0-9]+$/.test(text) && link.href && link.href !== '#';
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});
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if (numericLinks.length > 0) {
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const numericValues = numericLinks.map(link => parseInt(link.innerText.trim()));
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return Math.max(...numericValues);
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}
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// Strategy 2: Look for "last page" link
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const lastLinks = links.filter(link => {
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const text = link.innerText.trim().toLowerCase();
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const classes = (link.className || '').toLowerCase();
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const ariaLabel = (link.getAttribute('aria-label') || '').toLowerCase();
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return (text === 'last' ||
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classes.includes('last') ||
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ariaLabel.includes('last') ||
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link.getAttribute('rel') === 'last');
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});
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if (lastLinks.length > 0) {
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const lastLink = lastLinks[0];
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const href = lastLink.href;
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// Common patterns: page=X, /page/X, etc.
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const pagePatterns = [
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/[?&]page=(\d+)/,
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/[?&]p=(\d+)/,
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/[?&]pg=(\d+)/,
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/\/page\/(\d+)/,
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/\/p\/(\d+)/,
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/\/paged\/(\d+)/
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];
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for (const pattern of pagePatterns) {
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const match = href.match(pattern);
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if (match && match[1]) {
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return parseInt(match[1]);
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}
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}
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}
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// Strategy 3: Analyze all URLs for page numbers
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const pageNumbersFromUrls = [];
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links.forEach(link => {
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if (!link.href || link.href === '#') return;
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// Check for common pagination URL patterns
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const patterns = [
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/[?&]page=(\d+)/,
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/[?&]p=(\d+)/,
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/[?&]pg=(\d+)/,
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/\/page\/(\d+)/,
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/\/p\/(\d+)/,
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/\/paged\/(\d+)/,
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/\/pages\/(\d+)/
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];
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for (const pattern of patterns) {
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const match = link.href.match(pattern);
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if (match && match[1]) {
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pageNumbersFromUrls.push(parseInt(match[1]));
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}
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}
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});
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if (pageNumbersFromUrls.length > 0) {
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return Math.max(...pageNumbersFromUrls);
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}
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return null;
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};
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// Find a pagination link to click
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const findPaginationLink = () => {
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const links = Array.from(document.querySelectorAll('a'));
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// Try to find a page "2" link first (most reliable)
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const page2Link = links.find(link => {
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const text = link.innerText.trim();
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return text === '2' && link.href && link.href !== '#';
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});
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if (page2Link) {
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return { element: page2Link, href: page2Link.href, type: 'numeric' };
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}
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// Try common "next page" selectors
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const nextSelectors = [
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'a.next',
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'a.page-next',
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'a[rel="next"]',
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'a[aria-label="Next page"]',
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'a[aria-label="next"]'
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];
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for (const selector of nextSelectors) {
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const element = document.querySelector(selector);
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if (element && element.href && element.href !== '#') {
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return { element, href: element.href, type: 'next' };
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}
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}
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// Look for any link that might be pagination
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const paginationLinks = links.filter(link => {
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if (!link.href || link.href === '#') return false;
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const text = link.innerText.trim();
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const href = link.href;
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// Check for numeric text or next/prev indicators
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const isNumeric = /^[0-9]+$/.test(text) && text !== '1';
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const isNextPrev = /next|prev|previous|older|newer/i.test(text) ||
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/[»«‹›<>]/.test(text);
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// Check for page parameter in URL
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const hasPageParam = /[?&]page=|[?&]p=|[?&]pg=|\/page\/|\/p\//.test(href);
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return (isNumeric || isNextPrev || hasPageParam);
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});
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if (paginationLinks.length > 0) {
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const link = paginationLinks[0];
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return { element: link, href: link.href, type: 'other' };
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}
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return null;
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};
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const lastPage = findLastPageNumber();
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const paginationLink = findPaginationLink();
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if (paginationLink) {
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// Click the link
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paginationLink.element.click();
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return {
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clicked: true,
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href: paginationLink.href,
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type: paginationLink.type,
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lastPage
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};
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}
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return { clicked: false, lastPage };
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}''')
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# If no pagination was found or clicked
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if not pagination_info.get('clicked', False):
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return {
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"status": "success",
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"url": decoded_url,
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"hasPagination": False,
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"urlTemplate": None,
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"lastPage": pagination_info.get('lastPage')
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}
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# Wait for navigation to complete after the click
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try:
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await page.waitForNavigation({'timeout': 10000, 'waitUntil': 'networkidle2'})
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except Exception as e:
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print(f"Navigation timeout: {e}")
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# Get the new URL after clicking
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next_page_url = page.url
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# If URL didn't change, pagination might be handled by AJAX
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if next_page_url == original_url:
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return {
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"status": "success",
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"url": decoded_url,
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"hasPagination": True,
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"urlTemplate": "AJAX pagination (URL doesn't change)",
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"lastPage": pagination_info.get('lastPage')
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}
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print(f"Navigation successful: {original_url} -> {next_page_url}")
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# Analyze the URL structure to determine pagination pattern
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url_template = await page.evaluate('''(originalUrl, nextPageUrl) => {
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// Helper function to parse URL query parameters
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const parseQueryParams = (url) => {
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const params = {};
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if (url.includes('?')) {
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const queryString = url.split('?')[1].split('#')[0];
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queryString.split('&').forEach(param => {
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if (param.includes('=')) {
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const [key, value] = param.split('=', 2);
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params[key] = value;
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}
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});
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}
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return params;
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};
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// Check for query parameter based pagination
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if (nextPageUrl.includes('?')) {
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const originalParams = parseQueryParams(originalUrl);
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const nextParams = parseQueryParams(nextPageUrl);
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// Find parameters that changed or were added
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let paginationParam = null;
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// First check for common pagination parameter names
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const commonPaginationParams = ['page', 'p', 'pg', 'paged', 'current_page', 'pagenum', 'pageNumber'];
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for (const key of commonPaginationParams) {
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if (key in nextParams &&
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(!(key in originalParams) || originalParams[key] !== nextParams[key])) {
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if (/^\d+$/.test(nextParams[key]) && parseInt(nextParams[key]) > 1) {
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paginationParam = key;
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break;
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}
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}
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}
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// If no common parameter found, check all parameters
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if (!paginationParam) {
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for (const [key, value] of Object.entries(nextParams)) {
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// Check if parameter is new or changed
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if (!(key in originalParams) || originalParams[key] !== value) {
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// Check if the value is numeric and could be a page number
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if (/^\d+$/.test(value) && parseInt(value) > 1) {
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paginationParam = key;
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break;
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||||
}
|
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}
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}
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}
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// If we found a pagination parameter
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if (paginationParam) {
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const baseUrl = nextPageUrl.split('?')[0];
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// Reconstruct the URL template with all parameters
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const queryParts = [];
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for (const [key, value] of Object.entries(nextParams)) {
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if (key === paginationParam) {
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queryParts.push(`${key}={PAGE_NUMBER}`);
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} else {
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queryParts.push(`${key}=${value}`);
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||||
}
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}
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||||
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return `${baseUrl}?${queryParts.join('&')}`;
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}
|
||||
}
|
||||
|
||||
// Check for path-based pagination
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||||
const pathPatterns = ['/page/', '/p/', '/paged/', '/pages/'];
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for (const pattern of pathPatterns) {
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if (nextPageUrl.includes(pattern)) {
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const parts = nextPageUrl.split(pattern);
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let template = `${parts[0]}${pattern}{PAGE_NUMBER}`;
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||||
// Add any suffix after the page number
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if (parts.length > 1 && parts[1].includes('/')) {
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||||
const suffix = parts[1].split('/', 1)[1];
|
||||
if (suffix) {
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||||
template += `/${suffix}`;
|
||||
}
|
||||
}
|
||||
|
||||
return template;
|
||||
}
|
||||
}
|
||||
|
||||
// If we couldn't determine the pattern, try to make an educated guess
|
||||
// For the specific case where a parameter like current_page=2 is added
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||||
const originalUrlObj = new URL(originalUrl);
|
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const nextUrlObj = new URL(nextPageUrl);
|
||||
|
||||
// Check if the paths are the same but query params differ
|
||||
if (originalUrlObj.pathname === nextUrlObj.pathname) {
|
||||
const originalParams = parseQueryParams(originalUrl);
|
||||
const nextParams = parseQueryParams(nextPageUrl);
|
||||
|
||||
// Find parameters that exist in next but not in original
|
||||
const newParams = Object.keys(nextParams).filter(key => !(key in originalParams));
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||||
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||||
// If there's exactly one new parameter and it has a numeric value
|
||||
if (newParams.length === 1 && /^\d+$/.test(nextParams[newParams[0]])) {
|
||||
const paginationParam = newParams[0];
|
||||
const baseUrl = nextPageUrl.split('?')[0];
|
||||
|
||||
// Reconstruct the URL template
|
||||
const queryParts = [];
|
||||
for (const [key, value] of Object.entries(nextParams)) {
|
||||
if (key === paginationParam) {
|
||||
queryParts.push(`${key}={PAGE_NUMBER}`);
|
||||
} else {
|
||||
queryParts.push(`${key}=${value}`);
|
||||
}
|
||||
}
|
||||
|
||||
return `${baseUrl}?${queryParts.join('&')}`;
|
||||
}
|
||||
}
|
||||
|
||||
// If we still couldn't determine the pattern, return both URLs as examples
|
||||
return `Pattern unclear. Example: ${originalUrl} → ${nextPageUrl}`;
|
||||
}''', original_url, next_page_url)
|
||||
|
||||
# Try to extract last page number from the next page if we didn't find it on the first page
|
||||
if not pagination_info.get('lastPage'):
|
||||
last_page_from_next = await page.evaluate('''() => {
|
||||
// Get all links on the page
|
||||
const links = Array.from(document.querySelectorAll('a'));
|
||||
|
||||
// Strategy 1: Find numeric links (page numbers)
|
||||
const numericLinks = links.filter(link => {
|
||||
const text = link.innerText.trim();
|
||||
return /^[0-9]+$/.test(text) && link.href && link.href !== '#';
|
||||
});
|
||||
|
||||
if (numericLinks.length > 0) {
|
||||
const numericValues = numericLinks.map(link => parseInt(link.innerText.trim()));
|
||||
return Math.max(...numericValues);
|
||||
}
|
||||
|
||||
// Strategy 2: Analyze all URLs for page numbers
|
||||
const pageNumbersFromUrls = [];
|
||||
links.forEach(link => {
|
||||
if (!link.href || link.href === '#') return;
|
||||
|
||||
// Check for common pagination URL patterns
|
||||
const patterns = [
|
||||
/[?&]page=(\d+)/,
|
||||
/[?&]p=(\d+)/,
|
||||
/[?&]pg=(\d+)/,
|
||||
/\/page\/(\d+)/,
|
||||
/\/p\/(\d+)/,
|
||||
/\/paged\/(\d+)/,
|
||||
/\/pages\/(\d+)/
|
||||
];
|
||||
|
||||
for (const pattern of patterns) {
|
||||
const match = link.href.match(pattern);
|
||||
if (match && match[1]) {
|
||||
pageNumbersFromUrls.push(parseInt(match[1]));
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
if (pageNumbersFromUrls.length > 0) {
|
||||
return Math.max(...pageNumbersFromUrls);
|
||||
}
|
||||
|
||||
return null;
|
||||
}''')
|
||||
|
||||
if last_page_from_next:
|
||||
pagination_info['lastPage'] = last_page_from_next
|
||||
|
||||
# Check if the pattern is unclear
|
||||
has_pagination = True
|
||||
url_string_template = str(url_template)
|
||||
if url_string_template and url_string_template.startswith("Pattern unclear"):
|
||||
has_pagination = False
|
||||
url_template = None
|
||||
|
||||
result = {
|
||||
"status": "success",
|
||||
"url": decoded_url,
|
||||
"hasPagination": has_pagination,
|
||||
"urlTemplate": url_template,
|
||||
"lastPage": pagination_info.get('lastPage'),
|
||||
"originalUrl": original_url,
|
||||
"nextPageUrl": next_page_url
|
||||
}
|
||||
|
||||
return result
|
||||
|
||||
except Exception as e:
|
||||
print(f"Error during pagination detection: {e}")
|
||||
return {
|
||||
"status": "error",
|
||||
"url": decoded_url,
|
||||
"error": str(e),
|
||||
"hasPagination": False,
|
||||
"urlTemplate": None,
|
||||
"lastPage": None
|
||||
}
|
||||
|
||||
# Perform the operation
|
||||
return await safe_browser_operation(decoded_url, pagination_operation)
|
||||
@@ -0,0 +1,55 @@
|
||||
import sqlite3
|
||||
import time
|
||||
from datetime import datetime
|
||||
from app.database import DB_PATH, CACHE_EXPIRY_HOURS
|
||||
|
||||
def clear_cache():
|
||||
"""Clear the entire cache database"""
|
||||
conn = sqlite3.connect(DB_PATH)
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("DELETE FROM cache")
|
||||
conn.commit()
|
||||
conn.close()
|
||||
return {"status": "success", "message": "Cache cleared successfully"}
|
||||
|
||||
def get_cache_stats():
|
||||
"""Get cache statistics"""
|
||||
conn = sqlite3.connect(DB_PATH)
|
||||
cursor = conn.cursor()
|
||||
|
||||
# Get total entries
|
||||
cursor.execute("SELECT COUNT(*) FROM cache")
|
||||
total_entries = cursor.fetchone()[0]
|
||||
|
||||
# Get entries by route
|
||||
cursor.execute("SELECT route, COUNT(*) FROM cache GROUP BY route")
|
||||
routes = {route: count for route, count in cursor.fetchall()}
|
||||
|
||||
# Get recent entries (last 24 hours)
|
||||
recent_timestamp = int(time.time()) - (24 * 60 * 60)
|
||||
cursor.execute("SELECT COUNT(*) FROM cache WHERE timestamp > ?", (recent_timestamp,))
|
||||
recent_entries = cursor.fetchone()[0]
|
||||
|
||||
# Get oldest entry timestamp
|
||||
cursor.execute("SELECT MIN(timestamp) FROM cache")
|
||||
oldest_timestamp = cursor.fetchone()[0]
|
||||
oldest_date = datetime.fromtimestamp(oldest_timestamp).isoformat() if oldest_timestamp else None
|
||||
|
||||
# Get newest entry timestamp
|
||||
cursor.execute("SELECT MAX(timestamp) FROM cache")
|
||||
newest_timestamp = cursor.fetchone()[0]
|
||||
newest_date = datetime.fromtimestamp(newest_timestamp).isoformat() if newest_timestamp else None
|
||||
|
||||
conn.close()
|
||||
|
||||
return {
|
||||
"status": "success",
|
||||
"stats": {
|
||||
"total_entries": total_entries,
|
||||
"entries_by_route": routes,
|
||||
"recent_entries": recent_entries,
|
||||
"oldest_entry": oldest_date,
|
||||
"newest_entry": newest_date,
|
||||
"cache_expiry_hours": CACHE_EXPIRY_HOURS
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user