Feature #5180
Updated by naruse (Yui NARUSE) almost 5 years ago
通常 net/http を使う時は、Net::HTTP.start("ruby-lang.org") などとホスト名を使います。
で、Socket がホスト名から IP アドレスを引いて、コネクションが張られます。
普通の人はこれで足りるわけですが、ふつうな人はしばしば DNS で引けない IP アドレスに接続したくなります。
例えば、ホスト名は "ruby-lang.org" としたいが、IP アドレスは 127.0.0.1 とか。
以下のパッチをあてると、
Net::HTTP.start("ruby-lang.org", ipaddr: '127.0.0.1')
などとできるようになります。
```diff
diff --git a/lib/net/http.rb b/lib/net/http.rb
index 7b9ec4f..6d034e0 100644
--- a/lib/net/http.rb
+++ b/lib/net/http.rb
@@ -524,7 +524,7 @@ module Net #:nodoc:
# _opt_ :: optional hash
#
# _opt_ sets following values by its accessor.
- # The keys are ca_file, ca_path, cert, cert_store, ciphers,
+ # The keys are ipaddr, ca_file, ca_path, cert, cert_store, ciphers,
# close_on_empty_response, key, open_timeout, read_timeout, ssl_timeout,
# ssl_version, use_ssl, verify_callback, verify_depth and verify_mode.
# If you set :use_ssl as true, you can use https and default value of
@@ -542,6 +542,7 @@ module Net #:nodoc:
port, p_addr, p_port, p_user, p_pass = *arg
port = https_default_port if !port && opt && opt[:use_ssl]
http = new(address, port, p_addr, p_port, p_user, p_pass)
+ http.ipaddr = opt[:ipaddr] if opt[:ipaddr]
if opt
if opt[:use_ssl]
@@ -575,6 +576,7 @@ module Net #:nodoc:
def initialize(address, port = nil)
@address = address
@port = (port || HTTP.default_port)
+ @ipaddr = nil
@curr_http_version = HTTPVersion
@no_keepalive_server = false
@close_on_empty_response = false
@@ -620,6 +622,17 @@ module Net #:nodoc:
# The port number to connect to.
attr_reader :port
+ # The IP address to connect to/used to connect to
+ def ipaddr
+ started? ? @socket.io.peeraddr[3] : @ipaddr
+ end
+
+ # Set the IP address to connect to
+ def ipaddr=(addr)
+ raise IOError, "ipaddr value changed, but session already started" if started?
+ @ipaddr = addr
+ end
+
# Number of seconds to wait for the connection to open. Any number
# may be used, including Floats for fractional seconds. If the HTTP
# object cannot open a connection in this many seconds, it raises a
@@ -945,7 +958,7 @@ module Net #:nodoc:
# without proxy
def conn_address
- address()
+ @ipaddr || address()
end
def conn_port
```