1

我正在尝试使用单个文件 Ruby 脚本来抓取给定站点上的所有电子邮件地址。在文件的底部,我有一个硬编码的测试用例,它使用了一个 URL,该 URL 在该特定页面上列出了一个电子邮件地址(因此它应该在第一个循环的第一次迭代中找到一个电子邮件地址。

出于某种原因,我的正则表达式似乎不匹配:

#get_emails.rb
require 'rubygems'
require 'open-uri'
require 'nokogiri'
require 'mechanize'
require 'uri'
require 'anemone'

class GetEmails

  def initialize
      @urlCounter, @anemoneCounter  = 0
      $allUrls, $emailUrls, $emails = []
  end


  def has_email?(listingUrl)
   hasListing = false
   Anemone.crawl(listingUrl) do |anemone|
      anemone.on_every_page do |page|
      body_text = page.body.to_s
      matchOrNil = body_text.match(/\A[^@\s]+@[^@\s]+\z/)
       if matchOrNil != nil
        $emailUrls[$anemoneCounter] = listingUrl
        $emails[$anemoneCounter] = body_text.match
        $anemoneCounter += 1
        hasListing = true
      else 
      end
    end
   end
   return hasListing
  end

end 

emailGrab = GetEmails.new()
emailGrab.has_email?("http://genuinestoragesheds.com/contact/")
puts $emails[0]
4

2 回答 2

1

所以这是代码的工作版本。使用单个正则表达式来查找包含电子邮件的字符串,并使用另外三个来清理它。

#get_emails.rb
require 'rubygems'
require 'open-uri'
require 'nokogiri'
require 'mechanize'
require 'uri'
require 'anemone'

class GetEmails

  def initialize
      @urlCounter = 0
      $anemoneCounter  = 0
      $allUrls = []
      $emailUrls = []
      $emails = []
  end

  def email_clean(email)
    email = email.gsub(/(\w+=)/,"")  
    email = email.gsub(/(\w+:)/, "")
    email = email.gsub!(/\A"|"\Z/, '')
    return email
  end


  def has_email?(listingUrl)
   hasListing = false
   Anemone.crawl(listingUrl) do |anemone|
      anemone.on_every_page do |page|
      body_text = page.body.to_s
      #matchOrNil = body_text.match(/\A[^@\s]+@[^@\s]+\z/)   
      matchOrNil = body_text.match(/[^@\s]+@[^@\s]+/)
       if matchOrNil != nil
        $emailUrls[$anemoneCounter] = listingUrl
        $emails[$anemoneCounter] = matchOrNil
        $anemoneCounter += 1
        hasListing = true
      else 
      end
    end
   end
   return hasListing
  end

end 

emailGrab = GetEmails.new()
found_email = "href=\"mailto:genuinestoragesheds@gmail.com\""
puts emailGrab.email_clean(found_email)
于 2017-04-20T16:24:41.327 回答
0

\A\z分别在您的匹配字符串的开头和结尾。显然,该网页包含的不仅仅是一个电子邮件字符串,或者您根本不进行正则表达式测试。

您可以将其简化为 just /[^@\s]+@[^@\s]+/,但您仍需要清理字符串以提取电子邮件。

于 2017-04-20T02:25:50.210 回答