117 lines
2.6 KiB
Go
117 lines
2.6 KiB
Go
package main
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import (
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"fmt"
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"log"
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"net/http"
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"net/url"
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"strings"
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"time"
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"github.com/PuerkitoBio/goquery"
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)
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func PerformGoogleTextSearch(query, safe, lang string, page int) ([]TextSearchResult, time.Duration, error) {
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const resultsPerPage = 10
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var results []TextSearchResult
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startTime := time.Now() // Start the timer
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client := &http.Client{}
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searchURL := buildSearchURL(query, safe, lang, page, resultsPerPage)
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req, err := http.NewRequest("GET", searchURL, nil)
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if err != nil {
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return nil, 0, fmt.Errorf("failed to create request: %v", err)
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}
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// User Agent generation
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TextUserAgent, err := GetUserAgent("Text-Search")
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if err != nil {
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return nil, 0, err
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}
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if debugMode {
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fmt.Println("Generated User Agent (text):", TextUserAgent)
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}
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req.Header.Set("User-Agent", TextUserAgent)
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resp, err := client.Do(req)
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if err != nil {
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return nil, 0, fmt.Errorf("making request: %v", err)
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return nil, 0, fmt.Errorf("unexpected status code: %d", resp.StatusCode)
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}
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doc, err := goquery.NewDocumentFromReader(resp.Body)
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if err != nil {
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return nil, 0, fmt.Errorf("loading HTML document: %v", err)
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}
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results = parseResults(doc)
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duration := time.Since(startTime) // Calculate the duration
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if len(results) == 0 {
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if debugMode {
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log.Println("No results found from Google")
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}
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}
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return results, duration, nil
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}
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func buildSearchURL(query, safe, lang string, page, resultsPerPage int) string {
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safeParam := "&safe=off"
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if safe == "active" {
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safeParam = "&safe=active"
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}
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langParam := ""
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if lang != "" {
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langParam = "&lr=" + lang
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}
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startIndex := (page - 1) * resultsPerPage
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return fmt.Sprintf("https://www.google.com/search?q=%s%s%s&udm=14&start=%d", url.QueryEscape(query), safeParam, langParam, startIndex)
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}
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func parseResults(doc *goquery.Document) []TextSearchResult {
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var results []TextSearchResult
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doc.Find(".yuRUbf").Each(func(i int, s *goquery.Selection) {
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link := s.Find("a")
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href, exists := link.Attr("href")
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if !exists {
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if debugMode {
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log.Printf("No href attribute found for result %d\n", i)
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}
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return
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}
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header := link.Find("h3").Text()
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header = strings.TrimSpace(strings.TrimSuffix(header, "›"))
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description := ""
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descSelection := doc.Find(".VwiC3b").Eq(i)
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if descSelection.Length() > 0 {
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description = descSelection.Text()
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}
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result := TextSearchResult{
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URL: href,
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Header: header,
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Description: description,
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}
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results = append(results, result)
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if debugMode {
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log.Printf("Google result: %+v\n", result)
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}
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})
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return results
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}
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