-
Notifications
You must be signed in to change notification settings - Fork 13
/
google.go
137 lines (123 loc) · 3.43 KB
/
google.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
package main
import (
"fmt"
"math"
"net/url"
"strings"
"github.com/PuerkitoBio/goquery"
)
func parseGoogleResponse(q string) ([]SearchResult, error) {
res, err := fetch(fmt.Sprintf("https://google.com/search?q=%s", url.QueryEscape(q)))
if err != nil {
return nil, err
}
doc, err := goquery.NewDocumentFromReader(res.Body)
if err != nil {
return nil, err
}
results := []SearchResult{}
sel := doc.Find("div.g")
urls := make(map[string]int)
// Find natural results
for i := range sel.Nodes {
item := sel.Eq(i)
a := item.Find("a")
title := item.Find("h3").First()
desc := item.Find(".VwiC3b")
link := strings.TrimSpace(a.AttrOr("href", ""))
cite := item.Find("cite")
if link != "" && link != "#" && !strings.HasPrefix(link, "/") {
u, err := url.Parse(link)
_, linkAlreadyListed := urls[link]
if err == nil && !isBlockedSite(u.Host) && !linkAlreadyListed {
urls[link] = 1
result := SearchResult{
URL: link,
Title: stringOrEmpty(title.Html()),
Desc: stringOrEmpty(desc.Html()),
Domain: u.Host,
Author: cite.First().Text(),
Related: extractRelated(item.Find(".fl")),
}
results = append(results, result)
extractSameSite(item, &results)
extractNestedLi(item, &results)
}
}
}
// Extract youtube videos
sel = doc.Find(".RzdJxc")
var videos []SearchResult
if len(sel.Nodes) > 0 {
for i := range sel.Nodes {
item := sel.Eq(i)
anchor := item.Find("a")
href := anchor.AttrOr("href", "")
cite := anchor.Find("cite").Parent()
title := item.Find("[role=\"heading\"]").Find("div").First().Text()
description := item.Find("span[aria-hidden=\"true\"]").First().Text()
videos = append(videos, SearchResult{
URL: href,
Title: title,
Desc: description,
Domain: "youtube.com",
Author: cite.First().Text(),
})
}
max := int(math.Min(float64(len(videos)-1), 3))
results = insertSlice(results, videos[:max], 2)
}
return results, err
}
// Extract similar answers (ex stackoverflow links)
func extractRelated(s *goquery.Selection) []Link {
var selection []Link
for i := range s.Nodes {
item := s.Eq(i)
span := item.Find("span")
title := span.Text()
href := item.AttrOr("href", "")
if !strings.Contains(href, "webcache.googleusercontent") &&
!strings.Contains(href, "translate.google.com") &&
!strings.HasPrefix(href, "/search?q") {
selection = append(selection, Link{title, href})
}
}
return selection
}
// Extract link from the section "Autres résultats sur site.com »"
func extractSameSite(s *goquery.Selection, r *[]SearchResult) {
items := s.Find(".mslg")
for i := range items.Nodes {
item := items.Eq(i)
title := item.Find("h3")
a := title.Find("a")
href := a.AttrOr("href", "")
u, _ := url.Parse(href)
desc := title.Next()
*r = append(*r, SearchResult{
URL: href,
Title: a.Text(),
Desc: strings.Trim(stringOrEmpty(desc.Html()), "<br/>"),
Domain: u.Host,
})
}
}
// Extract nested link "same domain"
func extractNestedLi(s *goquery.Selection, r *[]SearchResult) {
items := s.Find("li.MYVUIe")
for i := range items.Nodes {
item := items.Eq(i)
title := item.Find("h3")
a := title.Parent()
href := a.AttrOr("href", "")
u, _ := url.Parse(href)
desc := item.Find("div[data-content-feature]")
*r = append(*r, SearchResult{
URL: href,
Title: title.Text(),
Desc: strings.Trim(stringOrEmpty(desc.Find("span").Last().Html()), "<br/>"),
Domain: u.Host,
})
}
}