Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Node.js + WebSocket でテザリングしてみた
Search
Shuhei Kagawa
June 07, 2013
Programming
0
2.5k
Node.js + WebSocket でテザリングしてみた
社内勉強会での発表です。
https://github.com/shuhei/tether
Shuhei Kagawa
June 07, 2013
Tweet
Share
More Decks by Shuhei Kagawa
See All by Shuhei Kagawa
Profiling Node.js apps on production
shuhei
0
700
Building a Pixel Art Editor with Elm
shuhei
1
690
Redux Middleware Wars (Japanese)
shuhei
8
1.8k
Redux Middleware Wars (English)
shuhei
0
150
Draw Animated Chart on React Native
shuhei
0
8.5k
Angular 2 Offline Compiler
shuhei
0
5.3k
Weird Attractors
shuhei
0
770
Angular 2 @ JS Ojisan #6-3
shuhei
1
2.9k
Introduction to Angular 2
shuhei
2
130
Other Decks in Programming
See All in Programming
Changed Rules: Architectures with Lightweight Stores
manfredsteyer
PRO
0
230
Zero Waste, Radical Magic, and Italian Graft – Quarkus Efficiency Secrets
hollycummins
0
220
Folding Cheat Sheet #1
philipschwarz
PRO
0
210
Site Reliability Engineering for GMO
pyama86
6
940
PHPの次期バージョンはこの時期どうなっているのか - Internalsの開発体制について - PHPカンファレンス小田原
youkidearitai
PRO
1
180
TYPO3 v13 – The road to LTS: What's new and new APIs
luisasofie_xoxo
0
180
Elm Form Validation
bkuhlmann
0
500
ONE WEDGE_company_guide
1wedge_one
0
380
Semantic search with Django and pgvector
pauloxnet
0
240
ADRを一年運用してみた/adr_after_a_year
hanhan1978
7
2.2k
HUIT新歓2024「競技プログラミング、やってみませんか?」
slephy2784
1
250
"config" ってなんだ? / What is "config"?
okashoi
0
220
Featured
See All Featured
Bootstrapping a Software Product
garrettdimon
PRO
301
110k
Templates, Plugins, & Blocks: Oh My! Creating the theme that thinks of everything
marktimemedia
18
1.7k
The Power of CSS Pseudo Elements
geoffreycrofte
59
5k
It's Worth the Effort
3n
180
27k
Building Flexible Design Systems
yeseniaperezcruz
318
37k
Designing the Hi-DPI Web
ddemaree
276
33k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
240
1.2M
What the flash - Photography Introduction
edds
64
11k
Faster Mobile Websites
deanohume
297
30k
Put a Button on it: Removing Barriers to Going Fast.
kastner
58
3k
10 Git Anti Patterns You Should be Aware of
lemiorhan
646
57k
JavaScript: Past, Present, and Future - NDC Porto 2020
reverentgeek
39
4.4k
Transcript
Node.js + WebSocket Ͱ ςβϦϯάͯ͠Έͨ 2013/6/7 M3 Tech Talk #2!
! ߳ पฏ
ࣗݾհ 5/1 ೖࣾ! લ৬Ͱ .NET Ͱ CAD ΧελϚΠζɺ Web ੍࡞ɺFlash
ͰαΠωʔδɺ Ruby on Rails Ͱ ΖΖɺͳͲ! ͖ͳݴޠ Ruby ͱ JavaScript ͱ࠷ۙ Scala
https://github.com/shuhei/tether
Server! Client! Browser! HTTP Proxy Mobile! Safari Websit Adhoc Network
Web! Socket Web! Socket Websit Websit Architecture
ंྠͷ࠶ൃ໊ • t.free http://connectfree.jp/tetherfree/! • https://github.com/spoletto/iOS-HTML5- Tethering! • େֶͷ՝ http://cs.brown.edu/courses/cs168/s12/
handouts/tether.pdf http://www.flickr.com/photos/60317050@N08/8595670162
ಈػ 12/15 ιϑτόϯΫͷςβϦϯάղېΑΓલ! ͜Ε·Ͱ্ͬ໘͔Γɾɾɾ͏ͪΐͬͱԼ ͷํΛͪΌΜͱΓ͍ͨ! Node.js Ͱ Express, Socket.IO Θͳ͍ͷ
࡞Γ͍ͨ
TUN TAP Software network device! ͷύέοτશͯΛԣऔΓͰ͖Δ! ͰɺNode.js Ͱ৮Εͳͦ͞͏ɾɾɾ! Native module
ॻ͚ͳ͍͠ɾɾɾ
HTTP Proxy TCP Ҏ্ͳΒ Node.js Ͱ؆୯ʹ৮ΕΔ! HTTP Tunneling ͢Εɺ͍Ζ͍Ζͳϓϩτί ϧαϙʔτͰ͖Δͣʂ
WebSocket Binary data Λྲྀ͍ͨ͠! Base64 encode/decode ͘ͳΔ! Socket.IO x!
BinaryJS ͱ͔͋Δ͚Ͳɾɾɾ
ࣗ࡞ • ࡞ͬͯΈΑ͏ʂ • ༷ॻ http://tools.ietf.org/html/rfc6455 • WebSocket αʔόͷ࣮ͱϓϩτίϧ ղઆ
http://d.hatena.ne.jp/Jxck/20120725/ 1343174392 http://www.flickr.com/photos/60317050@N08/8735098936/
WebSocket server ͷ࣮ UPGRADE request! ͭͳ͗ͬͺͳ͠ͷ TCP ଓ! ͦͷதͰɺϓϩτίϧʹ४ڌͨ͠σʔλͷ ΓऔΓɻ
WebSocket Protocol 0: FIN+OPCODE, 1: Payload Length, 2-: Payload! 0:
FIN+OPCODE, 1: 0x7e, 2-3: Payload Length, 4-: Payload! ҎԼಉจ! socket ͷσʔλΛಓʹ 1byte ͣͭຒΊΔ/ಡ ΈऔΔ
Server! Client! Browser! HTTP Proxy Mobile! Safari Websit Adhoc Network
Web! Socket Web! Socket Websit Websit Architecture
TCP server as HTTP Proxy Browser ͔Βͷ request Λ TCP
server Ͱड͚ Δ! Binary ͷ·· WebSocket Ͱ server ! σʔλͷઌ಄ʹ 2 byte port ൪߸ΛՃ
TCP client as HTTP client WebSocket ͰૹΒΕ͖ͯͨ binary Λɺ࠷ॳͩ ͚
toString ͯ͠ host:port Λऔಘ! TCP ଓͨ͠Βɺޙͻͨ͢Β binary Λྲྀ͢
Keep-alive ͷ᠘ • ϒϥβϓϩΩγͱͷଓΛΒͣ ʹɺผͷϗετѼͷϦΫΤετΛૹͬ ͯ͘Δ! • ࠞઢʂʂʂ http://www.flickr.com/photos/hatm/5704687902/
HTTP server & client ʹ ͬͺΓϦΫΤετຖʹ header Λ parse ͠
ͳ͍ͱବͩͬͨ! HTTP request Λ parse ͢ΔͳΒ http.Server! Node ͷ HTTP parser native
ࠞઢΛ͙ Browser ͔Βͷ request ຖʹ 16 byte ͷ UUID ΛৼΔ!
Server ଆͰɺUUID Λͱʹࣝผ! ෳରԠͯࠞ͠ઢ͠ͳ͍ͣ
HTTPS CONNECT request! Socket ͔Βͷ data Λ browser ͔Β web
server ૉ௨͢͠Δ! ૉ௨͠ͳͷͰɺ҉߸Խ͞Ε͍ͯͯͳ͠
Demo
ײ TCP ͍͢͝ɻॱ൪อূ͞ΕͯΔ! όΠφϦʹগ͠׳Εͨ! Keep-alive ͳͲଓͷཧΉ͔͍ͣ͠! ंྠͷ࠶։ൃɺͳ͔ͳ͔ͪΌΜͱಈ͔ͳ͍͚ Ͳɺಈ͘ͱָ͍͠! ςβϦϯάΦϓγϣϯղͷಓԕ͍...
ࠓޙ HTTP tunneling: SSH Λ௨͍ͨ͠! Web αʔόͷಉ࣌ଓͷ੍ޚ