Get ip address from domain name or get domain name from ip in ruby

發佈日期: 7 2 月, 2021，作者: rover

resolv class can let us get ip from domain name or get domain name from ip in a ruby program.

example 

require 'resolv'
p Resolv.getaddress "www.ruby-lang.org"
p Resolv.getname "210.251.121.214"

result 

"54.235.116.125"
"ci.ruby-lang.org"

O

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How to ping for reachability of remote host in Ruby

發佈日期: 4 2 月, 2021，作者: rover

1.if you has a firewall, remember to open icmp-type 8 first 

iptables -A INPUT -i $EXTIF -p icmp --icmp-type 8 -j ACCEPT

2.use net-ping gem，of course, you should install it first. 

gem install net-ping

require 'net/ping'

def up?(host)
    check = Net::Ping::External.new(host)
    check.ping?
end

host = 'google.com'
puts up?(host)

3.use system ping command 

def up?(host, timeout=5)
  system "ping -c 1 -t #{timeout} #{host} >/dev/null"
end

p up?('localhost')

references: 

https://stackoverflow.com/questions/21081639/how-to-ping-for-reachability-of-remote-host-in-ruby

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分類: ruby | 標籤: | 發佈留言

WordPress之ruby介面：rubypress

發佈日期: 21 1 月, 2021，作者: rover

昨天試用了mediawiki-butt後，想到是不是也有wordpress的ruby介面，搜尋了一下，還真的有，就是本文要介紹的rubypress。

https://github.com/zachfeldman/rubypress

1.安裝 

gem install rubypress

2.馬上試用 

require 'rubypress'
wp = Rubypress::Client.new(
  host: "example.com",
  username: "user",
  password: "passwor"
)

wp.newPost(
  content: {
    post_status: "publish",
    post_date: Time.now,
    post_content: "This is the body",
    post_title: "RubyPress is the best!",
    post_name: "/rubypress-is-the-best",
    post_author: 1, # 1 if there is only the admin user, otherwise the user's id
    terms_names: {
      category: ['Category One','Category Two','Category Three'],
      post_tag: ['Tag One','Tag Two', 'Tag Three']
    }
  }
)

3.去wordpress看是否文章已出現。

rubypress.jpg


4.又例如，取得id為425的post之標題和內容 

post = wp.getPost(post_id: 425)  
p "標題：" + post["post_title"]
p "內容：" + post["post_content"]

結果為： 

標題：Wordpress之ruby介面：rubypress
內容：<!-- wp:paragraph -->
<p>[rdp-wiki-embed url='http://apache:8080/mediawiki/index.php/Wordpress%E4%B9%8Bruby%E4%BB%8B%E9%9D%A2%EF%BC%9Arubypress']</p>
<!-- /wp:paragraph -->


注意事項：

如果你有使用多站網路的功能，也不需使用blog_id，只要建立連結時，host設成要連結的blog網址即可。我使用blog_id，不管設的值為何，都是第一個blog，只有設host才成功。

api詳細文件在https://codex.wordpress.org/XML-RPC_WordPress_API

分類: ruby | 標籤: | 發佈留言