URL Normalization
URL normalization is the process by which URLs are modified and standardized in a consistent manner. The goal of the normalization process is to transform a URL into a normalized or canonical URL so it is possible to determine if two syntactically different URLs may be equivalent.
For our normalization we will use normalizations that preserve semantics. You should normalize a given url using the next rules (only these rules. They are slightly different from RFC).
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1. Converting the scheme and host to lower case.
HTTP://www.Example.com/ → http://www.example.com/
- 2. Capitalizing letters in escape sequences. All letters within a percent-encoding triplet (e.g., "%3B") are case-insensitive,...
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4. Removing the default port. The default port (port 80 for the “http” scheme) should be removed from a URL.
http://www.example.com:80/bar.html → http://www.example.com/bar.html
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5. Removing dot-segments. The segments “..” and “.” can be removed from a URL according to the algorithm
described in RFC 3986 (or a similar algorithm). ".." is a parent directory, "." is the same directory.
http://www.example.com/a/b/../c/./d.html → http://www.example.com/a/c/d.html
CheckiO Extensions allow you to use local files to solve missions. More info in a blog post.
In order to install CheckiO client you'll need installed Python (version at least 3.8)
Install CheckiO Client first:
pip3 install checkio_client
Configure your tool
checkio --domain=py config --key=
Sync solutions into your local folder
checkio sync
(in beta testing) Launch local server so your browser can use it and sync solution between local file end extension on the fly. (doesn't work for safari)
checkio serv -d
Alternatevly, you can install Chrome extension or FF addon
checkio install-plugin
checkio install-plugin --ff
checkio install-plugin --chromium
Read more here about other functionality that the checkio client provides. Feel free to submit an issue in case of any difficulties.
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