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3686b77eb6
git-svn-id: http://svn.redmine.org/redmine/trunk@21342 e93f8b46-1217-0410-a6f0-8f06a7374b81
51 lines
1.8 KiB
Ruby
51 lines
1.8 KiB
Ruby
# frozen_string_literal: true
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# Redmine - project management software
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# Copyright (C) 2006-2022 Jean-Philippe Lang
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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require 'uri'
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module Redmine
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module Helpers
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module URL
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# safe for resources fetched without user interaction?
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def uri_with_safe_scheme?(uri, schemes = ['http', 'https', 'ftp', 'mailto', nil])
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# URLs relative to the current document or document root (without a protocol
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# separator, should be harmless
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return true unless uri.to_s.include? ":"
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# Other URLs need to be parsed
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schemes.include? URI.parse(uri).scheme
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rescue URI::Error
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false
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end
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# safe to render links to given uri?
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def uri_with_link_safe_scheme?(uri)
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# regexp adapted from Sanitize (we need to catch even invalid protocol specs)
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return true unless uri =~ /\A\s*([^\/#]*?)(?:\:|�*58|�*3a)/i
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# absolute scheme
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scheme = $1.downcase
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return false unless /\A[a-z][a-z0-9\+\.\-]*\z/.match?(scheme) # RFC 3986
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%w(data javascript vbscript).none?(scheme)
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end
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end
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end
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end
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