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问题:
I am using ruby-1.8.7-p302/Rails 2.3.11. I am trying to use FQL (Facebook API) to get stats for a link. Here's my code:
def stats(fb_post_url)
url = BASE_URI + "?query=#{URI.encode("select like_count from link_stat where url=\"#{fb_post_url}\"")}"
parsed_url = URI.parse(url)
http = Net::HTTP.new(parsed_url.host, parsed_url.port)
request = Net::HTTP::Get.new(parsed_url.request_uri)
response = http.request(request)
response.inspect
end
And here's the error:
EOFError: end of file reached
from /home/rahul/.rvm/rubies/ruby-1.8.7-p302/lib/ruby/1.8/net/protocol.rb:135:in `sysread'
from /home/rahul/.rvm/rubies/ruby-1.8.7-p302/lib/ruby/1.8/net/protocol.rb:135:in `rbuf_fill'
from /home/rahul/.rvm/rubies/ruby-1.8.7-p302/lib/ruby/1.8/timeout.rb:67:in `timeout'
from /home/rahul/.rvm/rubies/ruby-1.8.7-p302/lib/ruby/1.8/timeout.rb:101:in `timeout'
from /home/rahul/.rvm/rubies/ruby-1.8.7-p302/lib/ruby/1.8/net/protocol.rb:134:in `rbuf_fill'
from /home/rahul/.rvm/rubies/ruby-1.8.7-p302/lib/ruby/1.8/net/protocol.rb:116:in `readuntil'
from /home/rahul/.rvm/rubies/ruby-1.8.7-p302/lib/ruby/1.8/net/protocol.rb:126:in `readline'
from /home/rahul/.rvm/rubies/ruby-1.8.7-p302/lib/ruby/1.8/net/http.rb:2028:in `read_status_line'
from /home/rahul/.rvm/rubies/ruby-1.8.7-p302/lib/ruby/1.8/net/http.rb:2017:in `read_new'
from /home/rahul/.rvm/rubies/ruby-1.8.7-p302/lib/ruby/1.8/net/http.rb:1051:in `request'
from /home/rahul/.rvm/rubies/ruby-1.8.7-p302/lib/ruby/1.8/net/http.rb:1037:in `request'
from /home/rahul/.rvm/rubies/ruby-1.8.7-p302/lib/ruby/1.8/net/http.rb:543:in `start'
from /home/rahul/.rvm/rubies/ruby-1.8.7-p302/lib/ruby/1.8/net/http.rb:1035:in `request'
from /home/rahul/Work/Radr/lib/fb_stats.rb:13:in `stats'
from (irb):10
This seems to be happening only in case of the Facebook API. Also, I saw it suggested in some post this could be a bug in Net::HTTP.
回答1:
If the URL is using https instead of http, you need to add the following line:
parsed_url = URI.parse(url)
http = Net::HTTP.new(parsed_url.host, parsed_url.port)
http.use_ssl = true
Note the additional http.use_ssl = true
.
And the more appropriate code which would handle both http and https will be similar to the following one.
url = URI.parse(domain)
req = Net::HTTP::Post.new(url.request_uri)
req.set_form_data({'name'=>'Sur Max', 'email'=>'some@email.com'})
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = (url.scheme == "https")
response = http.request(req)
See more in my blog: EOFError: end of file reached issue when post a form with Net::HTTP.
回答2:
I had a similar problem with a request to a non-SSL service.
This blog suggested vaguely to try URI encoding the URL that is passed to 'get': http://www.loudthinking.org/2010/02/ruby-eoferror-end-of-file-reached.html
I took a shot at it, based on desperation, and in my limiting testing this seems to have fixed it for me. My new code is:
@http = Net::HTTP.new('domain.com')
@http = @http.start
url = 'http://domain.com/requested_url?blah=blah&etc=1'
req = Net::HTTP::Get.new(URI.encode(url))
req.basic_auth USERNAME, API_KEY
res = @http.request(req)
Note that I use @http.start as I want to maintain the HTTP session over multiple requests. Other than that, you might like to try the most relevant part which is: URI.encode(url) inside the get call
回答3:
I find that I run into Net::HTTP and Net::FTP problems like this periodically, and when I do, surrounding the call with a timeout() makes all of those issues vanish. So where this will occasionally hang for 3 minutes or so and then raise an EOFError:
res = Net::HTTP.post_form(uri, args)
This always fixes it for me:
res = timeout(120) { Net::HTTP.post_form(uri, args) }
回答4:
I had the same problem, ruby-1.8.7-p357, and tried loads of things in vain...
I finally realised that it happens only on multiple calls using the same XMLRPC::Client instance!
So now I'm re-instantiating my client at each call and it just works:|
回答5:
After doing some research, this was happening in Ruby's XMLRPC::Client
library - which uses NET::HTTP
. The client uses the start()
method in NET::HTTP
which keeps the connection open for future requests.
This happened precisely at 30 seconds after the last requests - so my assumption here is that the server it's hitting is closing requests after that time. I'm not sure what the default is for NET::HTTP
to keep the request open - but I'm about to test with 60 seconds to see if that solves the issue.
回答6:
In Ruby on Rails I used this code, and it works perfectly:
req_profilepic = ActiveSupport::JSON.decode(open(URI.encode("https://graph.facebook.com/me/?fields=picture&type=large&access_token=#{fb_access_token}")))
profilepic_url = req_profilepic['picture']