红宝石机械化HTTPS错误

Question

我试图做到以下几点：

page = Mechanize.new.get "https://sis-app.sph.harvard.edu:9030/prod/bwckschd.p_disp_dyn_sched" 

但我只得到此异常：

OpenSSL::SSL::SSLError: SSL_connect returned=1 errno=0 state=SSLv2/v3 read server hello A: sslv3 alert illegal parameter 
    from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/net-http-persistent-2.7/lib/net/http/persistent/ssl_reuse.rb:70:in `connect' 
    from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/net-http-persistent-2.7/lib/net/http/persistent/ssl_reuse.rb:70:in `block in connect' 
    from /Users/amosng/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/timeout.rb:54:in `timeout' 
    from /Users/amosng/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/timeout.rb:99:in `timeout' 
    from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/net-http-persistent-2.7/lib/net/http/persistent/ssl_reuse.rb:70:in `connect' 
    from /Users/amosng/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/net/http.rb:755:in `do_start' 
    from /Users/amosng/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/net/http.rb:750:in `start' 
    from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/net-http-persistent-2.7/lib/net/http/persistent.rb:511:in `connection_for' 
    from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/net-http-persistent-2.7/lib/net/http/persistent.rb:806:in `request' 
    from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/mechanize-2.5.1/lib/mechanize/http/agent.rb:258:in `fetch' 
    from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/mechanize-2.5.1/lib/mechanize.rb:407:in `get' 
    from (irb):549 
    from /Users/amosng/.rvm/rubies/ruby-1.9.3-p194/bin/irb:16:in `<main>' 

我怎样才能获得网页在机械化加载？

Answer 1

有时你需要告诉机械化使用SSLV3：

page = Mechanize.new{|a| a.ssl_version, a.verify_mode = 'SSLv3', OpenSSL::SSL::VERIFY_NONE}.get "https://sis-app.sph.harvard.edu:9030/prod/bwckschd.p_disp_dyn_sched" 

请注意，我使用OpenSSL :: SSL :: VERIFY_NONE。这意味着你在理论上容易受到中间人攻击，但这并不是我通常在抓取网站时担心的事情。