WIP
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22
scrape.go
22
scrape.go
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@ -22,26 +22,6 @@
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package main
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import (
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"fmt"
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"log"
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"github.com/PuerkitoBio/goquery"
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)
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func ExampleScrape() {
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doc, err := goquery.NewDocument("http://metalsucks.net")
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if err != nil {
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log.Fatal(err)
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}
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doc.Find(".reviews-wrap article .review-rhs").Each(func(i int, s *goquery.Selection) {
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band := s.Find("h3").Text()
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title := s.Find("i").Text()
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fmt.Printf("Review %d: %s - %s\n", i, band, title)
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})
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}
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func main() {
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ExampleScrape()
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scrapeTabelog()
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}
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155
tabelog.go
Normal file
155
tabelog.go
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@ -0,0 +1,155 @@
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/*
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* Copyright (c) 2015 Alex Yatskov <alex@foosoft.net>
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* Author: Alex Yatskov <alex@foosoft.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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package main
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import (
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"bytes"
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"errors"
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"log"
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"regexp"
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"strconv"
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"strings"
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"sync"
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"text/template"
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"github.com/PuerkitoBio/goquery"
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)
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const (
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tabelogTemplate = "http://tabelog.com/en/rstLst/{{.Page}}/?lat=35.465808055555996&lon=139.61964361111&zoom=16&RdoCosTp=2&LstCos=0&LstCosT=11&LstSitu=0&LstRev=0&LstReserve=0&ChkParking=0&LstSmoking=0"
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)
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type tabelogParams struct {
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Page int
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}
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type tabelogReview struct {
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name string
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address string
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dishes float64
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service float64
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atmosphere float64
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cost float64
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drinks float64
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url string
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}
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func parseCounts(doc *goquery.Document) (from, to, total int64, err error) {
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t := doc.Find("#js-item-count-downside").Text()
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r := regexp.MustCompile(`(\d+)\D*(\d+)\D*(\d+)`)
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if c := r.FindStringSubmatch(t); c != nil {
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from, _ = strconv.ParseInt(c[1], 10, 8)
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to, _ = strconv.ParseInt(c[2], 10, 8)
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total, _ = strconv.ParseInt(c[3], 10, 8)
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} else {
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err = errors.New("failed to parse counts")
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}
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return
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}
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func scrapeReview(url string, out chan tabelogReview) {
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doc, err := goquery.NewDocument(url)
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if err != nil {
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log.Print(err)
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return
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}
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var r tabelogReview
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r.url = url
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r.name = doc.Find("body > article > header > div.rd-header.l-container > div > div.rd-header__headline > h2 > a").Text()
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r.address = strings.TrimSpace(doc.Find("#anchor-rd-detail > section > table > tbody > tr > td > p.rd-detail-info__rst-address").First().Text())
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if r.dishes, err = strconv.ParseFloat(doc.Find("#js-rating-detail > dd:nth-child(2)").Text(), 8); err != nil {
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return
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}
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if r.service, err = strconv.ParseFloat(doc.Find("#js-rating-detail > dd:nth-child(4)").Text(), 8); err != nil {
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return
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}
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if r.atmosphere, err = strconv.ParseFloat(doc.Find("#js-rating-detail > dd:nth-child(6)").Text(), 8); err != nil {
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return
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}
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if r.cost, err = strconv.ParseFloat(doc.Find("#js-rating-detail > dd:nth-child(8)").Text(), 8); err != nil {
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return
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}
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if r.drinks, err = strconv.ParseFloat(doc.Find("#js-rating-detail > dd:nth-child(10)").Text(), 8); err != nil {
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return
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}
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out <- r
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}
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func scrapeIndex(url string, out chan tabelogReview) error {
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doc, err := goquery.NewDocument(url)
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if err != nil {
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return err
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}
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doc.Find("#js-map-search-result-list > li > div.list-rst__header > p > a").Each(func(index int, sel *goquery.Selection) {
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if href, ok := sel.Attr("href"); ok {
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go scrapeReview(href, out)
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}
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})
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return nil
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}
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func dumpReviews(c chan tabelogReview, cond *sync.Cond) {
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for {
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review, ok := <-c
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if !ok {
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break
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}
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log.Print(review)
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}
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cond.Signal()
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}
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func scrapeTabelog() error {
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var cond sync.Cond
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out := make(chan tabelogReview)
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go dumpReviews(out, &cond)
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t := template.New("tabelog")
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t.Parse(tabelogTemplate)
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for i := 1; i <= 60; i++ {
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var url bytes.Buffer
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if err := t.Execute(&url, tabelogParams{i}); err != nil {
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log.Fatal(err)
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}
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if err := scrapeIndex(string(url.Bytes()), out); err != nil {
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return err
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}
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}
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close(out)
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cond.Wait()
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return nil
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}
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