Maintaining cookies between Mechanize requests

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无人及你
无人及你 2020-12-14 10:18

I\'m trying to use the Ruby version of Mechanize to extract my employer\'s tickets from a ticket management system that we\'re moving away from that does not supply an API.<

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  •  伪装坚强ぢ
    2020-12-14 10:33

    Okay this might help you - first of all what version of mechanize are you using? You need to identify, if this problem is due to the cookies being overwritten/cleaned by mechanize between the requests or if the cookies are wrong/not being set in the first place. You can do that by adding a puts @agent.cookie_jar.jar inbetween the two requests, to see what is stored.

    If its a overwriting issue, you might be able to solve it by collecting the cookies from the first request, and applying them to the second. There are many ways to do this:

    One way is to just do a temp_jar = agent.cookie_jar.jar an then just going through each cookie and add it again using the .add method

    HOWEVER - the easiest way is by just installing the latest 2.1 pre release of mechanize (many fixes), because you will then be able to do it very simply. To install the latest do a gem install mechanize --pre and make sure to get rid of the old version of mechanize gem uninstall mechanize 'some_version' after this, you can simply do as follows:

    require 'rubygems'
    require 'nokogiri'
    require 'mechanize'
    
    @agent = Mechanize.new
    
    page = @agent.post('http://.com/user_session', {
                                            'authenticity_token' => '',
                                            'user_session[login]' => '',
                                            'user_session[password]' => '',
                                            'user_session[remember_me]' => '0',
                                            'commit' => 'Login'
    })
    temp_jar = @agent.cookie_jar
    #Do whatever you need an use the cookies again in a new session after that
    @agent = Mechanize.new
    @agent.cookie_jar = temp_jar
    
    page = @agent.get 'http://.com///tickets/1'
    puts page.title
    

    BTW the documentation is here http://mechanize.rubyforge.org/index.html

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