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impression of google chrome headless
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May 31, 2017
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impression of google chrome headless
teitei_tk
May 31, 2017
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Transcript
ChromeHeadless modeΛ৮ͬͨॴײ 2017/05/31 @teitei_tk
ࣗݾհ • @teitei_tk • ࠷ۙϋΠϥϧԦࠃΛฏʹ͢ΔͨΊʹؤுͬ ͯ·͢ɻ
ຊ
ͷલʹ
Chrome Headless ͱʁ
͍ΘΏΔHeadlessϒϥβ • ޡղΛঝͰݴ͑ɺGUIͷແ͍Chromeɻ • GUIͳ͍͕ɺ෦తʹϖʔδͷϨϯμϦϯά ͔ΒJavaScriptͷ࣮ߦɺϒϥβͬΆ͍͜ͱ͕ Ͱ͖Δ
Ͳ͏͍͏༻్͕͋Δͷ • WebApplicationͷςετ • ͍ΘΏΔE2E • WebPageͷΩϟϓνϟࡱӨ • WebαΠτͷεΫϨΠϐϯά •
DDoS߈ܸ
ͳͥ Chrome Headless͔
PhantomJSͷࢮ
PhantomJSͱ • HeadlessϒϥβͷҰͭ • ͓ͦΒ͘Ұ൪ਓؾ͕͋ΔͷͰͳ͍ͩΖ͏͔ • ͔͠͠ɺ2017/05/30ݱࡏͰissue1848ɺPull Request58ͱ։ൃఀ͍ͯ͠Δ • https://github.com/ariya/phantomjs/
PhantomJS is Dead • ͦͯ͠།Ұͷϝϯςφ͕ࠓޙΈͳChrome Headlessʹ Γ͑ΔͩΖ͏ͱϝϯςφΛࣙΛએݴɻ • https://groups.google.com/d/msg/phantomjs/9aI5d- LDuNE/5Z3SMZrqAQAJ
• ࠓޙͷߏ͋Δͷ͔ɺphantomiumͱ͍͏PhantomJS + ChromeHeadlessͷ୯ޠ͕Έ߹Θͬͨ͞ϨϙδτϦ͋ Δ • https://github.com/Vitallium/phantomium
ͱ͍͏ͷ͕എܠ
Կނ Chrome Headless͔
• Google͕։ൃ͍ͯ͠Δͱ͍͏҆৺ײ • Webඪ४ͷ४ڌ͕ૣ͍ͷͰɺ͍ͪૣ͘ػೳ͕͑Δɻ • ֤छAPIͷར༻͕Մೳ • ServiceWorker • IndexedDB
• Memory Heap Profiler • etc
ͱ͍͏Θ͚Ͱ ৮ͬͯΈͨ
Setup • Chrome Ver59Ҏ͕߱ඞਢ • ݱࡏ(2017/05/30)ͷChromeͷStable Version58 • Chrome CanaryΛ͏ͱྑͦ͞͏
؆୯ͳͷͳΒ͙͢ग़དྷΔ • ShellͰ͙͢ग़དྷΔ • DOMͷग़ྗ • PDF࡞ • Ωϟϓνϟͷऔಘ •
eg. $ chrome --headless --disable-gpu --dump- dom https://www.chromestatus.com/
దʹWrapperॻ͍ͨ • ΩϟϓνϟͷࡱӨ • https://wobfnz0lh2.execute-api.us- west-2.amazonaws.com/dev/chrome?url=https:// google.co.jp • PDFͷੜ •
https://wobfnz0lh2.execute-api.us- west-2.amazonaws.com/dev/pdf?url=https:// google.com/
• ݴޠɿNode.js • ओʹ༻ͨ͠ϥΠϒϥϦ • chrome-remote-interface • ChromeͷAPIΛୟ͘Node.jsϥΠϒϥϦ • lighthouse
• ChromeΛىಈ͢Δϔϧύʔ͕هࡌ͞Ε͍ͯΔ ϥΠϒϥϦ
ॴײ • ҆ఆԽ·Ͱ͏গֻ͔͠Γͦ͏ɻ • Ṗͷ--disable-gpu Option • API͕·ͩམͪண͍͍ͯͳ͍ͷͰຊ൪ೖ·ͩආ͚ͨ΄͏ ͕ྑͦ͞͏ •
ͱ͍͑PhantomJSͷޙ佂ʹ࠲Γͦ͏ɻ • ಈ͓͖ͬͯ·͢ɻ • Կ͔͋ͬͨΒهࣄͰॻ͍ͯڞ༗͠·͢ɻ