/
scrape.go
82 lines (77 loc) · 1.6 KB
/
scrape.go
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package main
import (
"code.google.com/p/go.net/html"
"fmt"
"github.com/BurntSushi/toml"
"io/ioutil"
"log"
"net/http"
"net/url"
"os"
"strings"
)
type Config struct {
Tag string
AttributeName string
IsURL bool
}
func DownloadURL(url string) string {
response, err := http.Get(url)
if err != nil {
log.Fatal(err)
}
defer response.Body.Close()
contents, err := ioutil.ReadAll(response.Body)
if err != nil {
log.Fatal(err)
}
return string(contents)
}
func main() {
var cfg Config
lines := []string{}
if _, err := toml.DecodeFile(os.Args[1], &cfg); err != nil {
log.Fatal(err)
return
}
htmlData := DownloadURL(os.Args[2])
doc, err := html.Parse(strings.NewReader(htmlData))
if err != nil {
log.Fatal(err)
}
var f func(*html.Node)
f = func(n *html.Node) {
if n.Type == html.ElementNode && n.Data == cfg.Tag {
for _, tag := range n.Attr {
if tag.Key == cfg.AttributeName {
lines = append(lines, tag.Val)
break
}
}
}
for c := n.FirstChild; c != nil; c = c.NextSibling {
f(c)
}
}
f(doc)
if cfg.IsURL {
u, err := url.Parse(os.Args[2])
if err != nil {
log.Fatal(err)
}
for i := range lines {
if strings.HasPrefix(lines[i], "#") {
lines[i] = os.Args[2] + lines[i]
} else if strings.HasPrefix(lines[i], "../") {
lines[i] = os.Args[2] + "/" + lines[i]
} else if strings.HasPrefix(lines[i], "//") {
lines[i] = u.Scheme + ":" + lines[i]
} else if strings.Index(lines[i], ":") == -1 { //this might not work all the time.
lines[i] = os.Args[2] + lines[i]
}
}
}
for i := range lines {
fmt.Println(lines[i])
}
}