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Ruby / EventSource
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| source "https://rubygems.org" |
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| GEM | |
| remote: https://rubygems.org/ | |
| specs: | |
| PLATFORMS | |
| ruby | |
| DEPENDENCIES |
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| <!DOCTYPE html> | |
| <meta charset="UTF-8"> | |
| <title>EventSource</title> | |
| <h2>EventSource test</h2> | |
| <div style="border: 1px solid black; padding: 1em;" id="output"> | |
| </div> | |
| <script> | |
| var output = document.getElementById("output"); | |
| var es = new EventSource("/stream"); | |
| es.onmessage = function(e) { | |
| var p = document.createElement("p"); | |
| p.appendChild(document.createTextNode(e.data)); | |
| output.appendChild(p); | |
| }; | |
| es.onerror = function(e) { | |
| es.close(); | |
| output.style.backgroundColor = "#ffcccc"; | |
| }; | |
| console.log(es); | |
| </script> |
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| require "socket" | |
| server = TCPServer.new("0", 8091) | |
| loop do | |
| client = server.accept | |
| Thread.new do | |
| packet = '' | |
| while packet.include?("\r\n\r\n") == false | |
| packet << client.recv(1024) | |
| end | |
| if packet[/\A(\S+)\s+(\S+)\s/, 1] | |
| method = $1 | |
| path = $2 | |
| puts "[#{Time.now}] #{method} #{path}" | |
| case path | |
| when "/" | |
| page = File.read("index.html") | |
| lines = [ | |
| "HTTP/1.1 200 OK", | |
| "Content-Type: text/html", | |
| "Content-Length: #{page.length}", | |
| "Connection: close" | |
| ].join("\r\n") | |
| client.write(lines + "\r\n\r\n") | |
| client.write(page) | |
| when "/stream" | |
| client.write("HTTP/1.1 200 OK\r\nContent-Type: text/event-stream\r\n\r\n") | |
| 10.times do |i| | |
| sleep 0.5 | |
| client.write(%[data: { "number": #{i} }\r\n\r\n]) | |
| client.flush | |
| end | |
| else | |
| lines = [ | |
| "HTTP/1.1 404 Not Found", | |
| "Content-Type: text/html", | |
| "Connection: close" | |
| ].join("\r\n") | |
| client.write(lines + "\r\n\r\n<h1>Not Found</h1>") | |
| end | |
| else | |
| client.write "NO HTTP" | |
| end | |
| client.shutdown | |
| end | |
| end |
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