Project

webpage_update_checker

0.0
Repository is archived
No release in over 3 years
Low commit activity in last 3 years
webpage_update_checkercorselia/webpage-update-checkerHomepageDocumentationSource CodeBug TrackerWiki
This gem checks whether a webpage is updated. By HTTP header or hash (MD5, SHA256...) differences, this gem inspects whether the page is updated or not.
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
 Popularity
Downloads
7,930
Stars
1
Forks
0
Watchers
1
 Releases
Current version
1.4.0
Total releases
5
First release
2018-11-13
Latest release
2018-11-27
 Issues
Open Issues
1
Closed Issues
5
Total Issues
6
Issue Closure Rate
83%
 Pull Requests
Open Pull Requests
0
Closed Pull Requests
0
Merged Pull Requests
28
Pull Request Acceptance Rate
100%
 Development
Primary Language
Ruby
Average date of last 50 commits
2020-07-01
Reverse Dependencies
0

 Dependencies

Development

bundler
~> 1.16
codeclimate-test-reporter
~> 1.0.0
coveralls
>= 0
dotenv
>= 0
pry
>= 0
pry-byebug
>= 0
rake
~> 10.0
rspec
~> 3.0
rspec-its
>= 0
rspec_junit_formatter
>= 0
rspec-parameterized
>= 0
rubocop
>= 0
simplecov
>= 0
webmock
>= 0
yard
>= 0

Runtime

activesupport
>= 0
mechanize
>= 0
 Project Readme

Webpage Update Checker

  • Gem for checking whether the target webpage is updated.
    • For not only webpage but also image, css and js (resources)

Gem Version CircleCI

Usage

Install gem

$ vim Gemfile

# Add a line
# gem 'webpage_update_checker'

$ bundle install

or

$ gem install webpage_update_checker

Write your app

Obtain by MD5

require 'webpage_update_checker'

checker = WebpageUpdateChecker::Client.new

target_page_md5 = WebpageUpdateChecker::Methods::Md5.new(uri: 'http://www.ne.jp/asahi/pursuits/ootsuki/pc/X68k/x680x0.xhtml')
checker.current_comparison_value(target_page_md5) #=> fb2eeb524e6b5637ef7fa4bed48f1d67

Obtain Last-Modified

require 'webpage_update_checker'

checker = WebpageUpdateChecker::Client.new

target_page_last_modified = WebpageUpdateChecker::Methods::LastModified.new(uri: 'http://www.ne.jp/asahi/pursuits/ootsuki/pc/X68k/x680x0.xhtml')
checker.current_comparison_value(target_page_last_modified) #=> 2008-03-17 16:05:01 +0000

Obtain HTTP Status Code

require 'webpage_update_checker'

checker = WebpageUpdateChecker::Client.new

target_page_http_status_code = WebpageUpdateChecker::Methods::HttpStatusCode.new(uri: 'http://www.ne.jp/asahi/pursuits/ootsuki/pc/X68k/x680x0.xhtml')
checker.current_comparison_value(target_page_http_status_code) #=> 200

Compare by MD5

require 'webpage_update_checker'

checker = WebpageUpdateChecker::Client.new

target_page_md5 = WebpageUpdateChecker::Methods::Md5.new(uri: 'http://www.ne.jp/asahi/pursuits/ootsuki/pc/X68k/x680x0.xhtml')

checker.current_comparison_value(target_page_md5) #=> fb2eeb524e6b5637ef7fa4bed48f1d67
checker.updated?(target_page_md5, previous_comparison_value: 'fb2eeb524e6b5637ef7fa4bed48f1d67') #=> false (not updated)
checker.updated?(target_page_md5, previous_comparison_value: '12345678901234567890123456789012') #=> true (updated)

Compare by Last-Modified with Lazy Time

  • Lazy Time comparision means to compare by not accurate datetime but ABOUT datetime
  • For example, when latest Last-Modified is 2008-03-18 01:05:01 +0000 and lazy_seconds is set as '60 * 5', if now getting Last-Modified is 2008-03-18 01:07:01 +0000 it does NOT regard as 'Updated'
    • if now getting Last-Modified is 2008-03-18 01:08:02 +0000 it DOES regard as 'Updated'
require 'webpage_update_checker'

checker = WebpageUpdateChecker::Client.new

current_time_object = WebpageUpdateChecker::Methods::LastModified.new(uri: 'http://www.ne.jp/asahi/pursuits/ootsuki/pc/X68k/x680x0.xhtml')
previous_comparision_value = '2008-03-18 01:00:01 +0900'
lazy_seconds = 60 * 5

checker.lazy_time_updated?(current_time_object, previous_comparison_value: previous_comparision_value, lazy_seconds: lazy_seconds) #=> false

Methods

You can use these Methods.

  • LastModified
  • Md5
  • Sha1
  • Sha256
  • Sha384
  • Sha512
  • HttpStatusCode

methods

You can use these methods in each Methods.

  • #updated?(checked_object, previous_comparison_value:)
    • #=> true or false
  • #lazy_time_updated?(checked_object, previous_comparison_value:, lazy_seconds:)
    • #=> true or false
  • #current_comparison_value(checked_object)
    • #=> object such as Time (LastModified), String (MD5, SHA512...) or Integer (HTTP status code)

Note

On v1.3.0, the method name that current_diff_value was changed to current_comparison_value and the keyword argument name that previous_diff_value was changed to previous_comparison_value.

So please use current_comparison_value method and previous_comparison_value keyword argument becuase current_diff_value and previous_diff_value are deprecated now.

TODO

LICENSE