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website_agent_spec.rb 41KB

    require 'rails_helper' describe Agents::WebsiteAgent do describe "checking without basic auth" do before do stub_request(:any, /xkcd/).to_return(body: File.read(Rails.root.join("spec/data_fixtures/xkcd.html")), status: 200, headers: { 'X-Status-Message' => 'OK' }) @valid_options = { 'name' => "XKCD", 'expected_update_period_in_days' => "2", 'type' => "html", 'url' => "http://xkcd.com", 'mode' => 'on_change', 'extract' => { 'url' => { 'css' => "#comic img", 'value' => "@src" }, 'title' => { 'css' => "#comic img", 'value' => "@alt" }, 'hovertext' => { 'css' => "#comic img", 'value' => "@title" } } } @checker = Agents::WebsiteAgent.new(:name => "xkcd", :options => @valid_options, :keep_events_for => 2.days) @checker.user = users(:bob) @checker.save! end it_behaves_like WebRequestConcern describe "validations" do before do expect(@checker).to be_valid end it "should validate the integer fields" do @checker.options['expected_update_period_in_days'] = "2" expect(@checker).to be_valid @checker.options['expected_update_period_in_days'] = "nonsense" expect(@checker).not_to be_valid end it 'should validate the http_success_codes fields' do @checker.options['http_success_codes'] = [404] expect(@checker).to be_valid @checker.options['http_success_codes'] = [404, 404] expect(@checker).not_to be_valid @checker.options['http_success_codes'] = [404, "422"] expect(@checker).to be_valid @checker.options['http_success_codes'] = [404.0] expect(@checker).not_to be_valid @checker.options['http_success_codes'] = ["not_a_code"] expect(@checker).not_to be_valid @checker.options['http_success_codes'] = [] expect(@checker).to be_valid @checker.options['http_success_codes'] = '' expect(@checker).to be_valid @checker.options['http_success_codes'] = false expect(@checker).to be_valid end it "should validate uniqueness_look_back" do @checker.options['uniqueness_look_back'] = "nonsense" expect(@checker).not_to be_valid @checker.options['uniqueness_look_back'] = "2" expect(@checker).to be_valid end it "should validate mode" do @checker.options['mode'] = "nonsense" expect(@checker).not_to be_valid @checker.options['mode'] = "on_change" expect(@checker).to be_valid @checker.options['mode'] = "all" expect(@checker).to be_valid @checker.options['mode'] = "" expect(@checker).to be_valid end it "should validate the force_encoding option" do @checker.options['force_encoding'] = '' expect(@checker).to be_valid @checker.options['force_encoding'] = 'UTF-8' expect(@checker).to be_valid @checker.options['force_encoding'] = ['UTF-8'] expect(@checker).not_to be_valid @checker.options['force_encoding'] = 'UTF-42' expect(@checker).not_to be_valid end context "in 'json' type" do it "should ensure that all extractions have a 'path'" do @checker.options['type'] = 'json' @checker.options['extract'] = { 'url' => { 'foo' => 'bar' }, } expect(@checker).to_not be_valid expect(@checker.errors_on(:base)).to include(/When type is json, all extractions must have a path attribute/) @checker.options['type'] = 'json' @checker.options['extract'] = { 'url' => { 'path' => 'bar' }, } expect(@checker).to be_valid end end end describe "#check" do it "should check for changes (and update Event.expires_at)" do expect { @checker.check }.to change { Event.count }.by(1) event = Event.last sleep 2 expect { @checker.check }.not_to change { Event.count } update_event = Event.last expect(update_event.expires_at).not_to eq(event.expires_at) end it "should always save events when in :all mode" do expect { @valid_options['mode'] = 'all' @checker.options = @valid_options @checker.check @checker.check }.to change { Event.count }.by(2) end it "should take uniqueness_look_back into account during deduplication" do @valid_options['mode'] = 'all' @checker.options = @valid_options @checker.check @checker.check event = Event.last event.payload = "{}" event.save expect { @valid_options['mode'] = 'on_change' @valid_options['uniqueness_look_back'] = 2 @checker.options = @valid_options @checker.check }.not_to change { Event.count } expect { @valid_options['mode'] = 'on_change' @valid_options['uniqueness_look_back'] = 1 @checker.options = @valid_options @checker.check }.to change { Event.count }.by(1) end it "should log an error if the number of results for a set of extraction patterns differs" do @valid_options['extract']['url']['css'] = "div" @checker.options = @valid_options @checker.check expect(@checker.logs.first.message).to match(/Got an uneven number of matches/) end it "should accept an array for url" do @valid_options['url'] = ["http://xkcd.com/1/", "http://xkcd.com/2/"] @checker.options = @valid_options expect { @checker.save! }.not_to raise_error; expect { @checker.check }.not_to raise_error; end it "should parse events from all urls in array" do expect { @valid_options['url'] = ["http://xkcd.com/", "http://xkcd.com/"] @valid_options['mode'] = 'all' @checker.options = @valid_options @checker.check }.to change { Event.count }.by(2) end it "should follow unique rules when parsing array of urls" do expect { @valid_options['url'] = ["http://xkcd.com/", "http://xkcd.com/"] @checker.options = @valid_options @checker.check }.to change { Event.count }.by(1) end end describe 'http_success_codes' do it 'should allow scraping from a 404 result' do json = { 'response' => { 'version' => 2, 'title' => "hello!" } } zipped = ActiveSupport::Gzip.compress(json.to_json) stub_request(:any, /gzip/).to_return(body: zipped, headers: { 'Content-Encoding' => 'gzip' }, status: 404) site = { 'name' => "Some JSON Response", 'expected_update_period_in_days' => "2", 'type' => "json", 'url' => "http://gzip.com", 'mode' => 'on_change', 'http_success_codes' => [404], 'extract' => { 'version' => { 'path' => 'response.version' }, }, # no unzip option } checker = Agents::WebsiteAgent.new(:name => "Weather Site", :options => site) checker.user = users(:bob) checker.save! checker.check event = Event.last expect(event.payload['version']).to eq(2) end end describe 'unzipping' do it 'should unzip automatically if the response has Content-Encoding: gzip' do json = { 'response' => { 'version' => 2, 'title' => "hello!" } } zipped = ActiveSupport::Gzip.compress(json.to_json) stub_request(:any, /gzip/).to_return(body: zipped, headers: { 'Content-Encoding' => 'gzip' }, status: 200) site = { 'name' => "Some JSON Response", 'expected_update_period_in_days' => "2", 'type' => "json", 'url' => "http://gzip.com", 'mode' => 'on_change', 'extract' => { 'version' => { 'path' => 'response.version' }, }, # no unzip option } checker = Agents::WebsiteAgent.new(:name => "Weather Site", :options => site) checker.user = users(:bob) checker.save! checker.check event = Event.last expect(event.payload['version']).to eq(2) end it 'should unzip with unzip option' do json = { 'response' => { 'version' => 2, 'title' => "hello!" } } zipped = ActiveSupport::Gzip.compress(json.to_json) stub_request(:any, /gzip/).to_return(body: zipped, status: 200) site = { 'name' => "Some JSON Response", 'expected_update_period_in_days' => "2", 'type' => "json", 'url' => "http://gzip.com", 'mode' => 'on_change', 'extract' => { 'version' => { 'path' => 'response.version' }, }, 'unzip' => 'gzip', } checker = Agents::WebsiteAgent.new(:name => "Weather Site", :options => site) checker.user = users(:bob) checker.save! checker.check event = Event.last expect(event.payload['version']).to eq(2) end it 'should either avoid or support a raw deflate stream (#1018)' do stub_request(:any, /deflate/).with(headers: { 'Accept-Encoding' => /\A(?!.*deflate)/ }). to_return(body: 'hello', status: 200) stub_request(:any, /deflate/).with(headers: { 'Accept-Encoding' => /deflate/ }). to_return(body: "\xcb\x48\xcd\xc9\xc9\x07\x00\x06\x2c".b, headers: { 'Content-Encoding' => 'deflate' }, status: 200) site = { 'name' => 'Some Response', 'expected_update_period_in_days' => '2', 'type' => 'text', 'url' => 'http://deflate', 'mode' => 'on_change', 'extract' => { 'content' => { 'regexp' => '.+', 'index' => 0 } } } checker = Agents::WebsiteAgent.new(name: "Deflate Test", options: site) checker.user = users(:bob) checker.save! expect { checker.check }.to change { Event.count }.by(1) event = Event.last expect(event.payload['content']).to eq('hello') end end describe 'encoding' do it 'should be forced with force_encoding option' do huginn = "\u{601d}\u{8003}" stub_request(:any, /no-encoding/).to_return(body: { value: huginn, }.to_json.encode(Encoding::EUC_JP).b, headers: { 'Content-Type' => 'application/json', }, status: 200) site = { 'name' => "Some JSON Response", 'expected_update_period_in_days' => "2", 'type' => "json", 'url' => "http://no-encoding.example.com", 'mode' => 'on_change', 'extract' => { 'value' => { 'path' => 'value' }, }, 'force_encoding' => 'EUC-JP', } checker = Agents::WebsiteAgent.new(name: "No Encoding Site", options: site) checker.user = users(:bob) checker.save! expect { checker.check }.to change { Event.count }.by(1) event = Event.last expect(event.payload['value']).to eq(huginn) end it 'should be overridden with force_encoding option' do huginn = "\u{601d}\u{8003}" stub_request(:any, /wrong-encoding/).to_return(body: { value: huginn, }.to_json.encode(Encoding::EUC_JP).b, headers: { 'Content-Type' => 'application/json; UTF-8', }, status: 200) site = { 'name' => "Some JSON Response", 'expected_update_period_in_days' => "2", 'type' => "json", 'url' => "http://wrong-encoding.example.com", 'mode' => 'on_change', 'extract' => { 'value' => { 'path' => 'value' }, }, 'force_encoding' => 'EUC-JP', } checker = Agents::WebsiteAgent.new(name: "Wrong Encoding Site", options: site) checker.user = users(:bob) checker.save! expect { checker.check }.to change { Event.count }.by(1) event = Event.last expect(event.payload['value']).to eq(huginn) end it 'should be determined by charset in Content-Type' do huginn = "\u{601d}\u{8003}" stub_request(:any, /charset-euc-jp/).to_return(body: { value: huginn, }.to_json.encode(Encoding::EUC_JP), headers: { 'Content-Type' => 'application/json; charset=EUC-JP', }, status: 200) site = { 'name' => "Some JSON Response", 'expected_update_period_in_days' => "2", 'type' => "json", 'url' => "http://charset-euc-jp.example.com", 'mode' => 'on_change', 'extract' => { 'value' => { 'path' => 'value' }, }, } checker = Agents::WebsiteAgent.new(name: "Charset reader", options: site) checker.user = users(:bob) checker.save! expect { checker.check }.to change { Event.count }.by(1) event = Event.last expect(event.payload['value']).to eq(huginn) end it 'should default to UTF-8 when unknown charset is found' do huginn = "\u{601d}\u{8003}" stub_request(:any, /charset-unknown/).to_return(body: { value: huginn, }.to_json.b, headers: { 'Content-Type' => 'application/json; charset=unicode', }, status: 200) site = { 'name' => "Some JSON Response", 'expected_update_period_in_days' => "2", 'type' => "json", 'url' => "http://charset-unknown.example.com", 'mode' => 'on_change', 'extract' => { 'value' => { 'path' => 'value' }, }, } checker = Agents::WebsiteAgent.new(name: "Charset reader", options: site) checker.user = users(:bob) checker.save! expect { checker.check }.to change { Event.count }.by(1) event = Event.last expect(event.payload['value']).to eq(huginn) end end describe '#working?' do it 'checks if events have been received within the expected receive period' do stubbed_time = Time.now stub(Time).now { stubbed_time } expect(@checker).not_to be_working # No events created @checker.check expect(@checker.reload).to be_working # Just created events @checker.error "oh no!" expect(@checker.reload).not_to be_working # There is a recent error stubbed_time = 20.minutes.from_now @checker.events.delete_all @checker.check expect(@checker.reload).to be_working # There is a newer event now stubbed_time = 2.days.from_now expect(@checker.reload).not_to be_working # Two days have passed without a new event having been created end end describe "parsing" do it "parses CSS" do @checker.check event = Event.last expect(event.payload['url']).to eq("http://imgs.xkcd.com/comics/evolving.png") expect(event.payload['title']).to eq("Evolving") expect(event.payload['hovertext']).to match(/^Biologists play reverse/) end it "parses XPath" do @valid_options['extract'].each { |key, value| value.delete('css') value['xpath'] = "//*[@id='comic']//img" } @checker.options = @valid_options @checker.check event = Event.last expect(event.payload['url']).to eq("http://imgs.xkcd.com/comics/evolving.png") expect(event.payload['title']).to eq("Evolving") expect(event.payload['hovertext']).to match(/^Biologists play reverse/) end it "should turn relative urls to absolute" do rel_site = { 'name' => "XKCD", 'expected_update_period_in_days' => "2", 'type' => "html", 'url' => "http://xkcd.com", 'mode' => "on_change", 'extract' => { 'url' => {'css' => "#topLeft a", 'value' => "@href"}, } } rel = Agents::WebsiteAgent.new(:name => "xkcd", :options => rel_site) rel.user = users(:bob) rel.save! rel.check event = Event.last expect(event.payload['url']).to eq("http://xkcd.com/about") end it "should return an integer value if XPath evaluates to one" do rel_site = { 'name' => "XKCD", 'expected_update_period_in_days' => 2, 'type' => "html", 'url' => "http://xkcd.com", 'mode' => "on_change", 'extract' => { 'num_links' => {'css' => "#comicLinks", 'value' => "count(./a)"} } } rel = Agents::WebsiteAgent.new(:name => "xkcd", :options => rel_site) rel.user = users(:bob) rel.save! rel.check event = Event.last expect(event.payload['num_links']).to eq("9") end it "should return all texts concatenated if XPath returns many text nodes" do rel_site = { 'name' => "XKCD", 'expected_update_period_in_days' => 2, 'type' => "html", 'url' => "http://xkcd.com", 'mode' => "on_change", 'extract' => { 'slogan' => {'css' => "#slogan", 'value' => ".//text()"} } } rel = Agents::WebsiteAgent.new(:name => "xkcd", :options => rel_site) rel.user = users(:bob) rel.save! rel.check event = Event.last expect(event.payload['slogan']).to eq("A webcomic of romance, sarcasm, math, and language.") end it "should interpolate _response_" do @valid_options['extract']['response_info'] = @valid_options['extract']['url'].merge( 'value' => '"{{ "The reponse was " | append:_response_.status | append:" " | append:_response_.headers.X-Status-Message | append:"." }}"' ) @checker.options = @valid_options @checker.check event = Event.last expect(event.payload['response_info']).to eq('The reponse was 200 OK.') end describe "XML" do before do stub_request(:any, /github_rss/).to_return( body: File.read(Rails.root.join("spec/data_fixtures/github_rss.atom")), status: 200 ) @checker = Agents::WebsiteAgent.new(name: 'github', options: { 'name' => 'GitHub', 'expected_update_period_in_days' => '2', 'type' => 'xml', 'url' => 'http://example.com/github_rss.atom', 'mode' => 'on_change', 'extract' => { 'title' => { 'xpath' => '/feed/entry', 'value' => 'normalize-space(./title)' }, 'url' => { 'xpath' => '/feed/entry', 'value' => './link[1]/@href' }, 'thumbnail' => { 'xpath' => '/feed/entry', 'value' => './thumbnail/@url' }, } }, keep_events_for: 2.days) @checker.user = users(:bob) @checker.save! end it "works with XPath" do expect { @checker.check }.to change { Event.count }.by(20) event = Event.last expect(event.payload['title']).to eq('Shift to dev group') expect(event.payload['url']).to eq('https://github.com/cantino/huginn/commit/d465158f77dcd9078697e6167b50abbfdfa8b1af') expect(event.payload['thumbnail']).to eq('https://avatars3.githubusercontent.com/u/365751?s=30') end it "works with XPath with namespaces unstripped" do @checker.options['use_namespaces'] = 'true' @checker.save! expect { @checker.check }.to change { Event.count }.by(0) @checker.options['extract'] = { 'title' => { 'xpath' => '/xmlns:feed/xmlns:entry', 'value' => 'normalize-space(./xmlns:title)' }, 'url' => { 'xpath' => '/xmlns:feed/xmlns:entry', 'value' => './xmlns:link[1]/@href' }, 'thumbnail' => { 'xpath' => '/xmlns:feed/xmlns:entry', 'value' => './media:thumbnail/@url' }, } @checker.save! expect { @checker.check }.to change { Event.count }.by(20) event = Event.last expect(event.payload['title']).to eq('Shift to dev group') expect(event.payload['url']).to eq('https://github.com/cantino/huginn/commit/d465158f77dcd9078697e6167b50abbfdfa8b1af') expect(event.payload['thumbnail']).to eq('https://avatars3.githubusercontent.com/u/365751?s=30') end it "works with CSS selectors" do @checker.options['extract'] = { 'title' => { 'css' => 'feed > entry', 'value' => 'normalize-space(./title)' }, 'url' => { 'css' => 'feed > entry', 'value' => './link[1]/@href' }, 'thumbnail' => { 'css' => 'feed > entry', 'value' => './thumbnail/@url' }, } @checker.save! expect { @checker.check }.to change { Event.count }.by(20) event = Event.last expect(event.payload['title']).to be_empty expect(event.payload['thumbnail']).to be_empty @checker.options['extract'] = { 'title' => { 'css' => 'feed > entry', 'value' => 'normalize-space(./xmlns:title)' }, 'url' => { 'css' => 'feed > entry', 'value' => './xmlns:link[1]/@href' }, 'thumbnail' => { 'css' => 'feed > entry', 'value' => './media:thumbnail/@url' }, } @checker.save! expect { @checker.check }.to change { Event.count }.by(20) event = Event.last expect(event.payload['title']).to eq('Shift to dev group') expect(event.payload['url']).to eq('https://github.com/cantino/huginn/commit/d465158f77dcd9078697e6167b50abbfdfa8b1af') expect(event.payload['thumbnail']).to eq('https://avatars3.githubusercontent.com/u/365751?s=30') end it "works with CSS selectors with namespaces stripped" do @checker.options['extract'] = { 'title' => { 'css' => 'feed > entry', 'value' => 'normalize-space(./title)' }, 'url' => { 'css' => 'feed > entry', 'value' => './link[1]/@href' }, 'thumbnail' => { 'css' => 'feed > entry', 'value' => './thumbnail/@url' }, } @checker.options['use_namespaces'] = 'false' @checker.save! expect { @checker.check }.to change { Event.count }.by(20) event = Event.last expect(event.payload['title']).to eq('Shift to dev group') expect(event.payload['url']).to eq('https://github.com/cantino/huginn/commit/d465158f77dcd9078697e6167b50abbfdfa8b1af') expect(event.payload['thumbnail']).to eq('https://avatars3.githubusercontent.com/u/365751?s=30') end end describe "XML with cdata" do before do stub_request(:any, /cdata_rss/).to_return( body: File.read(Rails.root.join("spec/data_fixtures/cdata_rss.atom")), status: 200 ) @checker = Agents::WebsiteAgent.new(name: 'cdata', options: { 'name' => 'CDATA', 'expected_update_period_in_days' => '2', 'type' => 'xml', 'url' => 'http://example.com/cdata_rss.atom', 'mode' => 'on_change', 'extract' => { 'author' => { 'xpath' => '/feed/entry/author/name', 'value' => './/text()'}, 'title' => { 'xpath' => '/feed/entry/title', 'value' => './/text()' }, 'content' => { 'xpath' => '/feed/entry/content', 'value' => './/text()' }, } }, keep_events_for: 2.days) @checker.user = users(:bob) @checker.save! end it "works with XPath" do expect { @checker.check }.to change { Event.count }.by(10) event = Event.last expect(event.payload['author']).to eq('bill98') expect(event.payload['title']).to eq('Help: Rainmeter Skins • Test if Today is Between 2 Dates') expect(event.payload['content']).to start_with('Can I ') end end describe "JSON" do it "works with paths" do json = { 'response' => { 'version' => 2, 'title' => "hello!" } } stub_request(:any, /json-site/).to_return(:body => json.to_json, :status => 200) site = { 'name' => "Some JSON Response", 'expected_update_period_in_days' => "2", 'type' => "json", 'url' => "http://json-site.com", 'mode' => 'on_change', 'extract' => { 'version' => {'path' => "response.version"}, 'title' => {'path' => "response.title"} } } checker = Agents::WebsiteAgent.new(:name => "Weather Site", :options => site) checker.user = users(:bob) checker.save! checker.check event = Event.last expect(event.payload['version']).to eq(2) expect(event.payload['title']).to eq("hello!") end it "can handle arrays" do json = { 'response' => { 'data' => [ {'title' => "first", 'version' => 2}, {'title' => "second", 'version' => 2.5} ] } } stub_request(:any, /json-site/).to_return(:body => json.to_json, :status => 200) site = { 'name' => "Some JSON Response", 'expected_update_period_in_days' => "2", 'type' => "json", 'url' => "http://json-site.com", 'mode' => 'on_change', 'extract' => { :title => {'path' => "response.data[*].title"}, :version => {'path' => "response.data[*].version"} } } checker = Agents::WebsiteAgent.new(:name => "Weather Site", :options => site) checker.user = users(:bob) checker.save! expect { checker.check }.to change { Event.count }.by(2) (event2, event1) = Event.last(2) expect(event1.payload['version']).to eq(2.5) expect(event1.payload['title']).to eq("second") expect(event2.payload['version']).to eq(2) expect(event2.payload['title']).to eq("first") end it "stores the whole object if :extract is not specified" do json = { 'response' => { 'version' => 2, 'title' => "hello!" } } stub_request(:any, /json-site/).to_return(:body => json.to_json, :status => 200) site = { 'name' => "Some JSON Response", 'expected_update_period_in_days' => "2", 'type' => "json", 'url' => "http://json-site.com", 'mode' => 'on_change' } checker = Agents::WebsiteAgent.new(:name => "Weather Site", :options => site) checker.user = users(:bob) checker.save! checker.check event = Event.last expect(event.payload['response']['version']).to eq(2) expect(event.payload['response']['title']).to eq("hello!") end end describe "text parsing" do before do stub_request(:any, /text-site/).to_return(body: <<-EOF, status: 200) water: wet fire: hot EOF site = { 'name' => 'Some Text Response', 'expected_update_period_in_days' => '2', 'type' => 'text', 'url' => 'http://text-site.com', 'mode' => 'on_change', 'extract' => { 'word' => { 'regexp' => '^(.+?): (.+)$', index: 1 }, 'property' => { 'regexp' => '^(.+?): (.+)$', index: '2' }, } } @checker = Agents::WebsiteAgent.new(name: 'Text Site', options: site) @checker.user = users(:bob) @checker.save! end it "works with regexp with named capture" do @checker.options = @checker.options.merge('extract' => { 'word' => { 'regexp' => '^(?<word>.+?): (?<property>.+)$', index: 'word' }, 'property' => { 'regexp' => '^(?<word>.+?): (?<property>.+)$', index: 'property' }, }) expect { @checker.check }.to change { Event.count }.by(2) event1, event2 = Event.last(2) expect(event1.payload['word']).to eq('water') expect(event1.payload['property']).to eq('wet') expect(event2.payload['word']).to eq('fire') expect(event2.payload['property']).to eq('hot') end it "works with regexp" do expect { @checker.check }.to change { Event.count }.by(2) event1, event2 = Event.last(2) expect(event1.payload['word']).to eq('water') expect(event1.payload['property']).to eq('wet') expect(event2.payload['word']).to eq('fire') expect(event2.payload['property']).to eq('hot') end end end describe "#receive" do describe "with a url or url_from_event" do before do @event = Event.new @event.agent = agents(:bob_rain_notifier_agent) @event.payload = { 'url' => 'http://foo.com', 'link' => 'Random' } end it "should use url_from_event as the url to scrape" do stub = stub_request(:any, 'http://example.org/?url=http%3A%2F%2Ffoo.com') @checker.options = @valid_options.merge( 'url_from_event' => 'http://example.org/?url={{url | uri_escape}}' ) @checker.receive([@event]) expect(stub).to have_been_requested end it "should use the Agent's `url` option if url_from_event is not set" do expect { @checker.options = @valid_options @checker.receive([@event]) }.to change { Event.count }.by(1) end it "should allow url_from_event to be an array of urls" do stub1 = stub_request(:any, 'http://example.org/?url=http%3A%2F%2Ffoo.com') stub2 = stub_request(:any, 'http://google.org/?url=http%3A%2F%2Ffoo.com') @checker.options = @valid_options.merge( 'url_from_event' => ['http://example.org/?url={{url | uri_escape}}', 'http://google.org/?url={{url | uri_escape}}'] ) @checker.receive([@event]) expect(stub1).to have_been_requested expect(stub2).to have_been_requested end it "should interpolate values from incoming event payload" do stub_request(:any, /foo/).to_return(body: File.read(Rails.root.join("spec/data_fixtures/xkcd.html")), status: 200) expect { @valid_options['url_from_event'] = '{{ url }}' @valid_options['extract'] = { 'from' => { 'xpath' => '*[1]', 'value' => '{{url | to_xpath}}' }, 'to' => { 'xpath' => '(//a[@href and text()={{link | to_xpath}}])[1]', 'value' => '@href' }, } @checker.options = @valid_options @checker.receive([@event]) }.to change { Event.count }.by(1) expect(Event.last.payload).to eq({ 'from' => 'http://foo.com', 'to' => 'http://dynamic.xkcd.com/random/comic/', }) end it "should use the options url if no url is in the event payload, and `url_from_event` is not provided" do @checker.options['mode'] = 'merge' @event.payload.delete('url') expect { @checker.receive([@event]) }.to change { Event.count }.by(1) expect(Event.last.payload['title']).to eq('Evolving') expect(Event.last.payload['link']).to eq('Random') end it "should interpolate values from incoming event payload and _response_" do @event.payload['title'] = 'XKCD' expect { @valid_options['extract'] = { 'response_info' => @valid_options['extract']['url'].merge( 'value' => '{% capture sentence %}The reponse from {{title}} was {{_response_.status}} {{_response_.headers.X-Status-Message}}.{% endcapture %}{{sentence | to_xpath}}' ) } @checker.options = @valid_options @checker.receive([@event]) }.to change { Event.count }.by(1) expect(Event.last.payload['response_info']).to eq('The reponse from XKCD was 200 OK.') end it "should support merging of events" do expect { @checker.options = @valid_options @checker.options[:mode] = "merge" @checker.receive([@event]) }.to change { Event.count }.by(1) last_payload = Event.last.payload expect(last_payload['link']).to eq('Random') end end describe "with a data_from_event" do describe "with json data" do before do @event = Event.new @event.agent = agents(:bob_rain_notifier_agent) @event.payload = { 'something' => 'some value', 'some_object' => { 'some_data' => { hello: 'world' }.to_json } } @event.save! @checker.options = @valid_options.merge( 'type' => 'json', 'data_from_event' => '{{ some_object.some_data }}', 'extract' => { 'value' => { 'path' => 'hello' } } ) end it "should extract from the event data in the incoming event payload" do expect { @checker.receive([@event]) }.to change { Event.count }.by(1) expect(@checker.events.last.payload).to eq({ 'value' => 'world' }) end it "should support merge mode" do @checker.options['mode'] = "merge" expect { @checker.receive([@event]) }.to change { Event.count }.by(1) expect(@checker.events.last.payload).to eq(@event.payload.merge('value' => 'world')) end it "should output an error when nothing can be found at the path" do @checker.options = @checker.options.merge( 'data_from_event' => '{{ some_object.mistake }}' ) expect { @checker.receive([@event]) }.to_not change { Event.count } expect(@checker.logs.last.message).to match(/No data was found in the Event payload using the template {{ some_object\.mistake }}/) end it "should output an error when the data cannot be parsed" do @event.update_attribute :payload, @event.payload.merge('some_object' => { 'some_data' => '{invalid json' }) expect { @checker.receive([@event]) }.to_not change { Event.count } expect(@checker.logs.last.message).to match(/Error when handling event data:/) end end describe "with HTML data" do before do @event = Event.new @event.agent = agents(:bob_rain_notifier_agent) @event.payload = { 'url' => 'http://xkcd.com', 'some_object' => { 'some_data' => "<div><span class='title'>Title!</span><span class='body'>Body!</span></div>" } } @event.save! @checker.options = @valid_options.merge( 'type' => 'html', 'data_from_event' => '{{ some_object.some_data }}', 'extract' => { 'title' => { 'css' => ".title", 'value' => ".//text()" }, 'body' => { 'css' => "div span.body", 'value' => ".//text()" } } ) end it "should extract from the event data in the incoming event payload" do expect { @checker.receive([@event]) }.to change { Event.count }.by(1) expect(@checker.events.last.payload).to eq({ 'title' => 'Title!', 'body' => 'Body!' }) end end end end end describe "checking with http basic auth" do before do @valid_options = { 'name' => "XKCD", 'expected_update_period_in_days' => "2", 'type' => "html", 'url' => "http://www.example.com", 'mode' => 'on_change', 'extract' => { 'url' => { 'css' => "#comic img", 'value' => "@src" }, 'title' => { 'css' => "#comic img", 'value' => "@alt" }, 'hovertext' => { 'css' => "#comic img", 'value' => "@title" } }, 'basic_auth' => "user:pass" } @checker = Agents::WebsiteAgent.new(:name => "auth", :options => @valid_options) @checker.user = users(:bob) @checker.save! case @checker.faraday_backend when :typhoeus # Webmock's typhoeus adapter does not read the Authorization # header: https://github.com/bblimke/webmock/pull/592 stub_request(:any, "www.example.com"). with(headers: { 'Authorization' => "Basic #{['user:pass'].pack('m0')}" }) else stub_request(:any, "user:pass@www.example.com") end.to_return(body: File.read(Rails.root.join("spec/data_fixtures/xkcd.html")), status: 200) end describe "#check" do it "should check for changes" do expect { @checker.check }.to change { Event.count }.by(1) expect { @checker.check }.not_to change { Event.count } end end end describe "checking with headers" do before do stub_request(:any, /example/). with(headers: { 'foo' => 'bar' }). to_return(:body => File.read(Rails.root.join("spec/data_fixtures/xkcd.html")), :status => 200) @valid_options = { 'name' => "XKCD", 'expected_update_period_in_days' => "2", 'type' => "html", 'url' => "http://www.example.com", 'mode' => 'on_change', 'headers' => { 'foo' => 'bar' }, 'extract' => { 'url' => { 'css' => "#comic img", 'value' => "@src" }, } } @checker = Agents::WebsiteAgent.new(:name => "ua", :options => @valid_options) @checker.user = users(:bob) @checker.save! end describe "#check" do it "should check for changes" do expect { @checker.check }.to change { Event.count }.by(1) end end end describe "checking urls" do before do stub_request(:any, /example/). to_return(:body => File.read(Rails.root.join("spec/data_fixtures/urlTest.html")), :status => 200) @valid_options = { 'name' => "Url Test", 'expected_update_period_in_days' => "2", 'type' => "html", 'url' => "http://www.example.com", 'mode' => 'all', 'extract' => { 'url' => { 'css' => "a", 'value' => "@href" }, } } @checker = Agents::WebsiteAgent.new(:name => "ua", :options => @valid_options) @checker.user = users(:bob) @checker.save! end describe "#check" do before do expect { @checker.check }.to change { Event.count }.by(8) @events = Event.last(8) end it "should check hostname" do event = @events[0] expect(event.payload['url']).to eq("http://google.com") end it "should check unescaped query" do event = @events[1] expect(event.payload['url']).to eq("https://www.google.ca/search?q=some%20query") end it "should check properly escaped query" do event = @events[2] expect(event.payload['url']).to eq("https://www.google.ca/search?q=some%20query") end it "should check unescaped unicode url" do event = @events[3] expect(event.payload['url']).to eq("http://ko.wikipedia.org/wiki/%EC%9C%84%ED%82%A4%EB%B0%B1%EA%B3%BC:%EB%8C%80%EB%AC%B8") end it "should check unescaped unicode query" do event = @events[4] expect(event.payload['url']).to eq("https://www.google.ca/search?q=%EC%9C%84%ED%82%A4%EB%B0%B1%EA%B3%BC:%EB%8C%80%EB%AC%B8") end it "should check properly escaped unicode url" do event = @events[5] expect(event.payload['url']).to eq("http://ko.wikipedia.org/wiki/%EC%9C%84%ED%82%A4%EB%B0%B1%EA%B3%BC:%EB%8C%80%EB%AC%B8") end it "should check properly escaped unicode query" do event = @events[6] expect(event.payload['url']).to eq("https://www.google.ca/search?q=%EC%9C%84%ED%82%A4%EB%B0%B1%EA%B3%BC:%EB%8C%80%EB%AC%B8") end it "should check url with unescaped brackets in the path component" do event = @events[7] expect(event.payload['url']).to eq("http://[::1]/path%5B%5D?query[]=foo") end end end end