CODEWITHSUNDEEP
rubyencodingutf-8hex
Rich_F
Rich_F

Reputation: 2056

Ruby Encoding from Previous Hex Encoding

I have a situation where a Nokogiri result has hex encoding into my results. The problem is where the actual encoding of the result is UTF-8, but contains hex characters:

Best 100+ Fishing Pictures | Download Free Images on Unsplash
https%3A%2F%2Funsplash.com%2Fs%2Fphotos%2Ffishing&rut=d1dd8233a6ad628121fa36d8d5a51be0b6fb0eda75e234d5036bf7b49efcf25b
current encoding: UTF-8

Fish Images | Free Vectors, Stock Photos & PSD
https%3A%2F%2Fwww.freepik.com%2Ffree%2Dphotos%2Dvectors%2Ffish&rut=f68a290a96893c63f8849bc9e89152d97a632d7a95bbf5d0ca2e939b378fff68
current encoding: UTF-8

How to Use Fish vs. fishes Correctly
https%3A%2F%2Fgrammarist.com%2Fusage%2Ffish%2Dfishes%2F&rut=e0897e219c9b0b125a1442b59e36c49753417a1b7812ae9d3ab0bc3179ffe6b5
current encoding: UTF-8

The URLs are technically encoded as UTF-8, but have hex characters. I haven't found anything that has seen them as hex to translate to UTF-8, so I'm lost as to how to recognize those character groupings for translation. Outside of writing a complex method that might work, I thought I would see if there's a force-recognition of the original string to be then translated using force_encode or something of that sort.

Anybody have any advice how to accomplish this? Any insight appreciated. I'd rather avoid having to hand-code these characters into a method.

Update: CGI::unescapeHTML(<string>] isn't working:

irb(main):024:0> a
=> "https%3A%2F%2Fwww.freepik.com%2Ffree%2Dphotos%2Dvectors%2Ffish&rut=f68a290a96893c63f8849bc9e89152d97a632d7a95bbf5d0ca2e939b378fff68"
irb(main):025:0> CGI::unescapeHTML(a)
=> "https%3A%2F%2Fwww.freepik.com%2Ffree%2Dphotos%2Dvectors%2Ffish&rut=f68a290a96893c63f8849bc9e89152d97a632d7a95bbf5d0ca2e939b378fff68"
irb(main):026:0> CGI::unescapeHTML(a) == a
=> true

Upvotes: 1

Views: 80

Answers (1)

voxobscuro
voxobscuro

Reputation: 2238

You didn't give the source for your "encoding of the result is UTF-8, but contains hex characters" in the original question. I don't think I understand that question.

In your update, you used the incorrect method. unescapeHTML is for resolving HTML entities:

irb(main):010:0> CGI.escapeHTML '<'
=> "&lt;"
irb(main):012:0> CGI.unescapeHTML '&lt;'
=> "<"

The method you need to use is for decoding URL sequences:

irb(main):017:0> encoded_url = "https%3A%2F%2Fwww.freepik.com%2Ffree%2Dphotos%2Dvectors%2Ffish&rut=f68a290a96893c63f8849bc9e89152d97a632d7a95bbf5d0ca2e939b378fff68"
=> "https%3A%2F%2Fwww.freepik.com%2Ffree%2Dphotos%2Dvectors%2Ffish&rut=f68a290a96893c63f8849bc9e89152d97a632d7a95bbf5d0ca2e939b378fff68"
irb(main):018:0> CGI.unescape encoded_url
=> "https://www.freepik.com/free-photos-vectors/fish&rut=f68a290a96893c63f8849bc9e89152d97a632d7a95bbf5d0ca2e939b378fff68"

If that doesn't solve your actual problem, I'm happy to revise given a more debuggable source code in the question.

Upvotes: 1

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