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element.go
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element.go
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// Package crawlerx
// @Author bcy2007 2023/7/13 11:32
package crawlerx
import (
"github.com/go-rod/rod"
"github.com/yaklang/yaklang/common/log"
"github.com/yaklang/yaklang/common/utils"
"strings"
"time"
)
func (starter *BrowserStarter) clickElementOnPageBySelector(page *rod.Page, selector string) bool {
info, err := page.Info()
if err != nil {
log.Errorf("page %v get info error: %v", page, err)
return false
}
var url string
if info != nil {
url = info.URL
}
if strings.HasSuffix(url, "#") {
url = url[:len(url)-1]
}
status, element, err := page.Has(selector)
//element, err := page.Element(selector)
if err != nil {
log.Debugf("On page %s element: %s", url, err)
return false
}
if !status {
log.Debugf("On page %s element: %s not found", url, selector)
return false
}
if element == nil {
log.Debugf("On page %s element %s not found.", url, selector)
return false
}
if visible, _ := element.Visible(); !visible {
log.Debugf(`On page %s element %s not visible`, url, selector)
return false
}
if starter.elementCheck != nil && !starter.elementCheck(element) {
log.Debugf(`On page %s element check failed`, url)
return false
}
//element.Click(proto.InputMouseButtonLeft)
_, err = element.Eval(`()=>this.click()`)
if err != nil {
log.Errorf(`click element %v error: %v`, element, err.Error())
return false
}
time.Sleep(500 * time.Millisecond)
//page.MustWaitLoad()
err = page.WaitLoad()
if err != nil {
log.Errorf("page %v wait load error: %v", page, err)
return false
}
return true
}
func (starter *BrowserStarter) elementCheckGenerate() func(*rod.Element) bool {
if len(starter.baseConfig.sensitiveWords) == 0 {
return nil
}
var propertyList = []string{"innerHTML", "value"}
return func(element *rod.Element) bool {
var resultStr string
for _, property := range propertyList {
subStr, _ := getProperty(element, property)
if subStr != "" {
resultStr += ";" + subStr
}
}
result, word := StringArrayCover(starter.baseConfig.sensitiveWords, resultStr)
if result {
var url string
page := element.Page()
if page != nil {
//info := page.MustInfo()
info, err := page.Info()
if err != nil {
log.Errorf("get page %v info error: %v", url, err)
return false
}
if info != nil {
url = info.URL
}
if strings.HasSuffix(url, "#") {
url = url[:len(url)-1]
}
}
log.Debugf(`In url %s element %s do not click because of sensitive word: %s`, url, element.Object.Description, word)
return false
}
return true
}
}
// map[{{ tagName }}]map[{{ element attribute }}]{{ attribute results }}
func customizedGetElement(page *rod.Page, searchInfo map[string]map[string][]string) (rod.Elements, error) {
resultElements := make([]*rod.Element, 0)
for tagName, tagInfo := range searchInfo {
elements, err := customizedCheckTagElements(page, tagName, tagInfo)
if err != nil {
continue
}
resultElements = append(resultElements, elements...)
}
return resultElements, nil
}
func customizedCheckTagElements(page *rod.Page, tagName string, tagInfo map[string][]string) (rod.Elements, error) {
elements, err := page.Elements(tagName)
if err != nil {
return nil, utils.Errorf("page %s get tag %s element error: %s", page, tagName, err)
}
if len(tagInfo) == 0 {
return elements, nil
}
resultElements := make([]*rod.Element, 0)
for _, element := range elements {
if customizedCheckElementAttribute(element, tagInfo) {
resultElements = append(resultElements, element)
}
}
return resultElements, nil
}
func customizedCheckElementAttribute(element *rod.Element, attributeInfo map[string][]string) bool {
for attribute, attributeList := range attributeInfo {
info, _ := getAttribute(element, attribute)
if info == "" {
continue
}
info = strings.ToLower(info)
if StringArrayContains(attributeList, info) {
return true
}
}
return false
}