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feat: add conditional check to collect matching classes

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RohitR311
2024-12-17 12:21:56 +05:30
parent 647cd62e32
commit a9dc4c8f4c
1 changed files with 62 additions and 31 deletions
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93
maxun-core/src/browserSide/scraper.js
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@@ -265,41 +265,72 @@ function scrapableHeuristics(maxCountPerPage = 50, minArea = 20000, scrolls = 3,
const scrapedData = []; const scrapedData = [];
while (scrapedData.length < limit) { while (scrapedData.length < limit) {
// Get all parent elements matching the listSelector let parentElements = Array.from(document.querySelectorAll(listSelector));
const parentElements = Array.from(document.querySelectorAll(listSelector));
// If we only got one element or none, try a more generic approach
if (limit > 1 && parentElements.length <= 1) {
const [containerSelector, _] = listSelector.split('>').map(s => s.trim());
const container = document.querySelector(containerSelector);
if (container) {
const allChildren = Array.from(container.children);
const firstMatch = document.querySelector(listSelector);
if (firstMatch) {
// Get classes from the first matching element
const firstMatchClasses = Array.from(firstMatch.classList);
// Find similar elements by matching most of their classes
parentElements = allChildren.filter(element => {
const elementClasses = Array.from(element.classList);
// Iterate through each parent element // Element should share at least 70% of classes with the first match
for (const parent of parentElements) { const commonClasses = firstMatchClasses.filter(cls =>
if (scrapedData.length >= limit) break; elementClasses.includes(cls));
const record = {}; return commonClasses.length >= Math.floor(firstMatchClasses.length * 0.7);
});
// For each field, select the corresponding element within the parent }
for (const [label, { selector, attribute }] of Object.entries(fields)) {
const fieldElement = parent.querySelector(selector);
if (fieldElement) {
if (attribute === 'innerText') {
record[label] = fieldElement.innerText.trim();
} else if (attribute === 'innerHTML') {
record[label] = fieldElement.innerHTML.trim();
} else if (attribute === 'src') {
// Handle relative 'src' URLs
const src = fieldElement.getAttribute('src');
record[label] = src ? new URL(src, window.location.origin).href : null;
} else if (attribute === 'href') {
// Handle relative 'href' URLs
const href = fieldElement.getAttribute('href');
record[label] = href ? new URL(href, window.location.origin).href : null;
} else {
record[label] = fieldElement.getAttribute(attribute);
} }
}
} }
scrapedData.push(record);
} // Iterate through each parent element
for (const parent of parentElements) {
if (scrapedData.length >= limit) break;
const record = {};
// For each field, select the corresponding element within the parent
for (const [label, { selector, attribute }] of Object.entries(fields)) {
const fieldElement = parent.querySelector(selector);
if (fieldElement) {
if (attribute === 'innerText') {
record[label] = fieldElement.innerText.trim();
} else if (attribute === 'innerHTML') {
record[label] = fieldElement.innerHTML.trim();
} else if (attribute === 'src') {
// Handle relative 'src' URLs
const src = fieldElement.getAttribute('src');
record[label] = src ? new URL(src, window.location.origin).href : null;
} else if (attribute === 'href') {
// Handle relative 'href' URLs
const href = fieldElement.getAttribute('href');
record[label] = href ? new URL(href, window.location.origin).href : null;
} else {
record[label] = fieldElement.getAttribute(attribute);
}
}
}
scrapedData.push(record);
}
// If we've processed all available elements and still haven't reached the limit,
// break to avoid infinite loop
if (parentElements.length === 0 || scrapedData.length >= parentElements.length) {
break;
}
} }
return scrapedData return scrapedData;
}; };
/** /**