/
main.go
131 lines (111 loc) · 2.47 KB
/
main.go
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package main
import (
"bufio"
"encoding/json"
"fmt"
"io"
"net/http"
"net/url"
"os"
"strings"
"github.com/yhat/scrape"
"golang.org/x/net/html"
)
type DataHolder struct {
Apps []AppData `json:"apps"`
}
type AppData struct {
PackageName string `json:"packageName"`
Name string `json:"name"`
Developer string `json:"developer"`
Categories []string `json:"categories"`
Tags []string `json:"tags"`
Version string `json:"version"`
}
func doScrape(urlString string) AppData {
fmt.Println(urlString)
u, err := url.Parse(urlString)
if err != nil {
panic(err)
}
appData := AppData{}
appData.PackageName = u.Query().Get("id")
resp, err := http.Get(urlString)
if err != nil {
panic(err)
}
root, err := html.Parse(resp.Body)
if err != nil {
panic(err)
}
genreMatcher := func(n *html.Node) bool {
return scrape.Attr(n, "itemprop") == "genre"
}
iconMatcher := func(n *html.Node) bool {
return scrape.Attr(n, "itemprop") == "image"
}
softwareVersionMatcher := func(n *html.Node) bool {
return scrape.Attr(n, "itemprop") == "softwareVersion"
}
name, ok := scrape.Find(root, scrape.ByClass("id-app-title"))
if ok {
appData.Name = scrape.Text(name)
}
genre, ok := scrape.Find(root, genreMatcher)
if ok {
appData.Categories = append(appData.Categories, scrape.Text(genre))
}
icon, ok := scrape.Find(root, iconMatcher)
if ok {
iconSrc := scrape.Attr(icon, "src")
iconUrl, err := url.Parse(iconSrc)
if err != nil {
panic(err)
}
if iconUrl.Scheme == "" {
iconSrc = "https:" + iconSrc
}
resp, err = http.Get(iconSrc)
if err != nil {
panic(err)
}
defer resp.Body.Close()
outputFile, err := os.Create("output/" + appData.PackageName + ".png")
if err != nil {
panic(err)
}
defer outputFile.Close()
_, err = io.Copy(outputFile, resp.Body)
if err != nil {
panic(err)
}
}
version, ok := scrape.Find(root, softwareVersionMatcher)
if ok {
appData.Version = strings.TrimSpace(scrape.Text(version))
}
return appData
}
func main() {
file, err := os.Open(os.Args[1])
if err != nil {
panic(err)
}
defer file.Close()
dataHolder := DataHolder{}
err = os.MkdirAll("output", 0777)
if err != nil {
panic(err)
}
scanner := bufio.NewScanner(file)
for scanner.Scan() {
dataHolder.Apps = append(dataHolder.Apps, doScrape(scanner.Text()))
}
outputFile, err := os.Create("output/data.json")
if err != nil {
panic(err)
}
defer outputFile.Close()
jsonEncoder := json.NewEncoder(outputFile)
jsonEncoder.Encode(dataHolder)
}