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cuty_capt_spec.rb
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# frozen_string_literal: true # # Copyright (C) 2011 - present Instructure, Inc. # # This file is part of Canvas. # # Canvas is free software: you can redistribute it and/or modify it under # the terms of the GNU Affero General Public License as published by the Free # Software Foundation, version 3 of the License. # # Canvas is distributed in the hope that it will be useful, but WITHOUT ANY # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR # A PARTICULAR PURPOSE. See the GNU Affero General Public License for more # details. # # You should have received a copy of the GNU Affero General Public License along # with this program. If not, see <http://www.gnu.org/licenses/>. # describe CutyCapt do before do CutyCapt.config = nil end after do CutyCapt.config = nil ConfigFile.unstub end context "configuration" do it "looks up parameters specified by string keys in the config correctly" do ConfigFile.stub("cutycapt", { "path" => "not used", "timeout" => 1000 }) expect(CutyCapt.config[:path]).to eq "not used" expect(CutyCapt.config[:timeout]).to eq 1000 end end context "url validation" do it "checks for an http scheme" do ConfigFile.stub("cutycapt", { path: "not used" }) expect(CutyCapt.verify_url("ftp://example.com/")).to be_falsey expect(CutyCapt.verify_url("http://example.com/")).to be_truthy expect(CutyCapt.verify_url("https://example.com/")).to be_truthy end it "checks for blacklisted domains" do ConfigFile.stub("cutycapt", { path: "not used", domain_blacklist: ["example.com"] }) expect(CutyCapt.verify_url("http://example.com/blah")).to be_falsey expect(CutyCapt.verify_url("http://foo.example.com/blah")).to be_falsey expect(CutyCapt.verify_url("http://bar.foo.example.com/blah")).to be_falsey expect(CutyCapt.verify_url("http://google.com/blah")).to be_truthy end it "checks for blacklisted ip blocks" do ConfigFile.stub("cutycapt", { path: "not used" }) expect(CutyCapt.verify_url("http://10.0.1.1/blah")).to be_falsey expect(CutyCapt.verify_url("http://169.254.169.254/blah")).to be_falsey expect(CutyCapt.verify_url("http://4.4.4.4/blah")).to be_truthy allow(Resolv).to receive(:getaddresses).and_return(["8.8.8.8", "10.0.1.1"]) expect(CutyCapt.verify_url("http://workingexample.com/blah")).to be_falsey end it "checks that the url resolves to something" do ConfigFile.stub("cutycapt", { path: "not used" }) expect(CutyCapt.verify_url("http://successfull")).to be_falsey end end context "execution" do it "times out cuty processes" do ConfigFile.stub("cutycapt", { path: "/bin/sleep", timeout: "1000" }) allow(CutyCapt).to receive(:cuty_arguments).and_return(["/bin/sleep", "60"]) expect do Timeout.timeout(10) { CutyCapt.snapshot_url("http://google.com/") } end.not_to raise_error end end describe ".snapshot_attachment_for_url" do it "returns an attachment" do path = file_fixture("instructure.png") expect(CutyCapt).to receive(:snapshot_url).and_yield(path) user = User.create! attachment = CutyCapt.snapshot_attachment_for_url("blah", context: user) expect(attachment).not_to be_nil end end end