OpenURI is an easy-to-use wrapper for net/http, net/https and net/ftp.
Example¶ ↑
It is possible to open http/https/ftp URL as usual like opening a file:
open("http://www.ruby-lang.org/") {|f|
f.each_line {|line| p line}
}
The opened file has several methods for meta information as follows since
it is extended by OpenURI::Meta.
open("http://www.ruby-lang.org/en") {|f|
f.each_line {|line| p line}
p f.base_uri # <URI::HTTP:0x40e6ef2 URL:http://www.ruby-lang.org/en/>
p f.content_type # "text/html"
p f.charset # "iso-8859-1"
p f.content_encoding # []
p f.last_modified # Thu Dec 05 02:45:02 UTC 2002
}
Additional header fields can be specified by an optional hash argument.
open("http://www.ruby-lang.org/en/",
"User-Agent" => "Ruby/#{RUBY_VERSION}",
"From" => "foo@bar.invalid",
"Referer" => "http://www.ruby-lang.org/") {|f|
# ...
}
The environment variables such as http_proxy, https_proxy and ftp_proxy
are in effect by default. :proxy => nil disables proxy.
open("http://www.ruby-lang.org/en/raa.html", :proxy => nil) {|f|
# ...
}
URI objects can be opened in a similar way.
uri = URI.parse("http://www.ruby-lang.org/en/")
uri.open {|f|
# ...
}
URI objects can be read directly. The returned string is also extended by
OpenURI::Meta.
str = uri.read
p str.base_uri
Author:: Tanaka Akira <akr@m17n.org>