Class: AutoselHttpProxy::Setting

Inherits:
Object
  • Object
show all
Defined in:
lib/autosel_http_proxy.rb

Constant Summary collapse

@@proxy_url = 
nil
@@proxy_setting = 
nil

Class Method Summary collapse

Class Method Details

.create_conf(filename) ⇒ Object 



55
56
57
58
59
60
61
62
63
64
65
66
 
# File 'lib/autosel_http_proxy.rb', line 55

def self.create_conf(filename)
  File.open(filename, 'w', 0600) {|io|
    io.puts <<EOF
PROXY_LIST =
  [{:if => 'hostname_found? "hostname.example.com"',
 :proxy_host => 'proxy.example.com',
 :proxy_port => '8080',
 :proxy_user => nil,
 :proxy_pass => nil,},]
EOF
  }
end

.hostname_found?(hostname) ⇒ Boolean

Returns:

  • (Boolean) 


19
20
21
22
23
24
25
26
 
# File 'lib/autosel_http_proxy.rb', line 19

def self.hostname_found?(hostname)
  begin
    Resolv.getaddress(hostname)
    true
  rescue
    false
  end
end

.init ⇒ Object 



86
87
88
89
90
 
# File 'lib/autosel_http_proxy.rb', line 86

def self.init
  load_conf PROXY_CONFFILE
  init_proxy_setting PROXY_LIST
  set_proxy_env!
end

.init_proxy_setting(list) ⇒ Object 



28
29
30
31
32
33
 
# File 'lib/autosel_http_proxy.rb', line 28

def self.init_proxy_setting(list)
  list.each{|a|
    return @@proxy_setting = a if eval a[:if]
  }
  @@proxy_setting = nil
end

.load_conf(filename) ⇒ Object 



68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
 
# File 'lib/autosel_http_proxy.rb', line 68

def self.load_conf(filename)
  unless File.exist?(filename)
    puts "*** \"#{filename}\" created."
    puts "*** Please config it."
    create_conf filename
    raise ConfigNotFound
  end

  load filename

  if PROXY_LIST[0][:if] ==
      'hostname_found? "hostname.example.com"'
    puts "*** \"#{filename}\" isn't configured."
    puts "*** Please config it."
    raise ConfigNotConfigured
  end
end

.overwrite_base_class! ⇒ Object 



92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
 
# File 'lib/autosel_http_proxy.rb', line 92

def self.overwrite_base_class!
  require 'net/http'

  Net::HTTP.instance_eval {
    if defined? @@method_new_orig
      raise DoubleCallOverwrite
    end
    @@method_new_orig = self.method(:new) # backup orignal 'new' method

    def new(address, port = nil, p_addr = nil, p_port = nil, p_user = nil, p_pass = nil)
      # overwrite!
      if AutoselHttpProxy::setting
        p_addr = AutoselHttpProxy::setting[:proxy_host]
        p_port = AutoselHttpProxy::setting[:proxy_port]
        p_user = AutoselHttpProxy::setting[:proxy_user]
        p_pass = AutoselHttpProxy::setting[:proxy_pass]
      end

      # call orignal 'new' method
      @@method_new_orig.call(address, port, p_addr, p_port, p_user, p_pass)
    end
  }
end

.proxy_setting ⇒ Object 



17
 
# File 'lib/autosel_http_proxy.rb', line 17

def self.proxy_setting() @@proxy_setting end

.proxy_url ⇒ Object 



16
 
# File 'lib/autosel_http_proxy.rb', line 16

def self.proxy_url() @@proxy_url end

.set_proxy_env! ⇒ Object 



35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
 
# File 'lib/autosel_http_proxy.rb', line 35

def self.set_proxy_env!
  return nil unless proxy_setting
  unless proxy_setting[:proxy_host]
    puts "*** Need \":proxy_host\" in \"#{PROXY_CONFFILE}\"."
    raise NeedHostname
  end

  url = "http://"
  if proxy_setting[:proxy_user] and proxy_setting[:proxy_pass]
    url += "#{proxy_setting[:proxy_user]}:#{proxy_setting[:proxy_pass]}@"
  end
  url += proxy_setting[:proxy_host] if proxy_setting[:proxy_host]
  url += ":" + proxy_setting[:proxy_port] if proxy_setting[:proxy_port]

  ENV['http_proxy'] = url
  ENV['https_proxy'] = url
  ENV['ftp_proxy'] = url
  @@proxy_url = url
end