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module Gitlab
class UrlSanitizer
ALLOWED_SCHEMES = %w[http https ssh git].freeze
def self.sanitize(content)
regexp = URI::DEFAULT_PARSER.make_regexp(ALLOWED_SCHEMES)
content.gsub(regexp) { |url| new(url).masked_url }
rescue Addressable::URI::InvalidURIError
content.gsub(regexp, '')
end
def self.valid?(url)
return false unless url.present?
uri = Addressable::URI.parse(url.strip)
ALLOWED_SCHEMES.include?(uri.scheme)
rescue Addressable::URI::InvalidURIError
false
end
def initialize(url, credentials: nil)
%i[user password].each do |symbol|
credentials[symbol] = credentials[symbol].presence if credentials&.key?(symbol)
end
@credentials = credentials
@url = parse_url(url)
end
def sanitized_url
@sanitized_url ||= safe_url.to_s
end
def masked_url
url = @url.dup
url.password = "*****" if url.password.present?
url.user = "*****" if url.user.present?
url.to_s
end
def credentials
@credentials ||= { user: @url.user.presence, password: @url.password.presence }
end
def full_url
@full_url ||= generate_full_url.to_s
end
private
def parse_url(url)
url = url.to_s.strip
match = url.match(%r{\A(?:git|ssh|http(?:s?))\://(?:(.+)(?:@))?(.+)})
raw_credentials = match[1] if match
if raw_credentials.present?
url.sub!("#{raw_credentials}@", '')
user, _, password = raw_credentials.partition(':')
@credentials ||= { user: user.presence, password: password.presence }
end
url = Addressable::URI.parse(url)
url.password = password if password.present?
url.user = user if user.present?
url
end
def generate_full_url
return @url unless valid_credentials?
@url.dup.tap do |generated|
generated.password = encode_percent(credentials[:password]) if credentials[:password].present?
generated.user = encode_percent(credentials[:user]) if credentials[:user].present?
end
end
def safe_url
safe_url = @url.dup
safe_url.password = nil
safe_url.user = nil
safe_url
end
def valid_credentials?
credentials && credentials.is_a?(Hash) && credentials.any?
end
def encode_percent(string)
# CGI.escape converts spaces to +, but this doesn't work for git clone
CGI.escape(string).gsub('+', '%20')
end
end
end
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