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Don't allow URLs that contain non-normalized paths to be verified (#20999)

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* Don't allow URLs that contain non-normalized paths to be verified

This stops things like https://example.com/otheruser/../realuser where
"/otheruser" appears to be the verified URL, but the actual URL being
verified is "/realuser" due to the "/../".

Also fix a test to use 'https', so it is testing the right thing, now
that since #20304 https is required.

* missing do
This commit is contained in:
David Leadbeater 2022-11-21 05:28:13 +11:00 • committed by GitHub
parent 48e136605a
commit 69378eac99
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2 changed files with 11 additions and 2 deletions
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3
app/models/account/field.rb
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@ -46,7 +46,8 @@ class Account::Field < ActiveModelSerializers::Model
parsed_url.user.nil? &&
parsed_url.password.nil? &&
parsed_url.host.present? &&
parsed_url.normalized_host == parsed_url.host
parsed_url.normalized_host == parsed_url.host &&
(parsed_url.path.empty? || parsed_url.path == parsed_url.normalized_path)
rescue Addressable::URI::InvalidURIError, IDN::Idna::IdnaError
false
end

10
spec/models/account/field_spec.rb
View file

@ -67,7 +67,15 @@ RSpec.describe Account::Field, type: :model do
end
context 'for an IDN URL' do
let(:value) { 'http://twitter.com∕dougallj∕status∕1590357240443437057.ê.cc/twitter.html' }
let(:value) { 'https://twitter.com∕dougallj∕status∕1590357240443437057.ê.cc/twitter.html' }
it 'returns false' do
expect(subject.verifiable?).to be false
end
end
context 'for a URL with a non-normalized path' do
let(:value) { 'https://github.com/octocatxxxxxxxx/../mastodon' }
it 'returns false' do
expect(subject.verifiable?).to be false