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README.md
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| @@ -87,8 +87,10 @@ In the future, it will be possible to control the logging level. | |||
| * `webframe.middleware.cookies`: Adds `request.cookies`, parsed COOKIE header. | |||
| * `webframe.middleware.params`: Adds `request.params`, parsed URL parameters. | |||
| * `webframe.middleware.payload`: Adds `request.payload`, a string (max 50 | |||
| kilobytes) of the request payload. | |||
| In the future, there will be middleware for POST request too. | |||
| In the future, there will be middleware for form data over POST too. | |||
| ### Modifications to the request and response objects | |||
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example.js
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| @@ -5,10 +5,15 @@ var mw = webframe.middleware; | |||
| var app = new webframe.App(); | |||
| // Endpoint which uses the "params" middleware to parse URL parameters | |||
| app.get("/endpoint", [ mw.params ], (req, res) => { | |||
| app.get("/params-example", [ mw.params ], (req, res) => { | |||
| res.end("Hello, "+req.params.name); | |||
| }); | |||
| // Endpoint which uses the "payload" middleware to get the payload as a string | |||
| app.post("/payload-example", [ mw.payload ], (req, res) => { | |||
| res.end(req.payload); | |||
| }); | |||
| // When a an endpoint path starts with a ^, it's interpreted as a | |||
| // regular expression pattern. "^.*" matches everything (though endpoints | |||
| // with explicit paths, like the "/endpoint" above, are prioritized). | |||
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index.js
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| @@ -137,6 +137,18 @@ class App { | |||
| if (typeof func !== "function") | |||
| throw new TypeError("Func must be a function."); | |||
| // All middlewares must exist | |||
| if (middleware) { | |||
| for (var i in middleware) { | |||
| if (typeof middleware[i] !== "function") { | |||
| this.panic( | |||
| "Middleware "+i+" for "+method+" "+path+ | |||
| " is "+(typeof middleware[i])+", expected function."); | |||
| return; | |||
| } | |||
| } | |||
| } | |||
| // Add to routes array or route map | |||
| if (path[0] === "^") { | |||
| var pat = new RegExp(path); | |||
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js/middleware.js
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| @@ -33,5 +33,28 @@ function params(req, res, cb) { | |||
| cb(); | |||
| } | |||
| /* | |||
| * Add req.payload | |||
| */ | |||
| function payload(req, res, cb, app) { | |||
| var max = 50 * 1000; | |||
| req.payload = ""; | |||
| var warned = false; | |||
| req.on("data", d => { | |||
| if (!warned && req.payload.length + d.length > max) { | |||
| app.warning("Payload with length above "+max+" bytes ignored."); | |||
| return cb(); | |||
| } | |||
| req.payload += d; | |||
| }); | |||
| req.on("end", () => { | |||
| if (!warned) | |||
| cb(); | |||
| }); | |||
| } | |||
| exports.cookies = cookies; | |||
| exports.params = params; | |||
| exports.payload = payload; | |||
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package.json
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| @@ -1,6 +1,6 @@ | |||
| { | |||
| "name": "webframe", | |||
| "version": "0.2.1", | |||
| "version": "0.3.0", | |||
| "description": "Web server.", | |||
| "main": "index.js", | |||
| "scripts": { | |||
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web/index.html
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| @@ -7,8 +7,12 @@ | |||
| <body> | |||
| <p> Hello World! </p> | |||
| <form action="/endpoint" method="get"> | |||
| <form action="/params-example" method="get"> | |||
| <label>What's your name? <input type="text" name="name"></label> | |||
| </form> | |||
| <form action="/payload-example" method="post"> | |||
| <label>Payload: <input type="text" name="payload"></label> | |||
| </form> | |||
| </body> | |||
| </html> | |||
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