router - npm Package Compare versions

Comparing version 1.0.0-beta.1 to 1.0.0-beta.2

HISTORY.md

@@ -0,1 +1,6 @@
+1.0.0-beta.2 / 2014-11-19
+=========================
+
+  * Match routes iteratively to prevent stack overflows
+
 1.0.0-beta.1 / 2014-11-16
@@ -2,0 +7,0 @@ =========================

index.js

@@ -214,4 +214,3 @@ /*!
 
-    var layer = stack[idx++]
-
+    // remove added slash
     if (slashAdded) {
@@ -222,2 +221,3 @@ req.url = req.url.substr(1)
 
+    // restore altered req.url
     if (removed.length !== 0) {
@@ -229,61 +229,86 @@ req.baseUrl = parentUrl
 
-    if (!layer) {
+    // no more matching layers
+    if (idx >= stack.length) {
       defer(done, layerError)
       return
     }
+    // get pathname of request
+    var path = getPathname(req)
 
-    self.match_layer(layer, req, res, function (err, path) {
-      if (err || path === undefined) {
-        next(layerError || err)
-        return
+    if (path == null) {
+      return done(layerError)
+    }
+
+    // find next matching layer
+    var layer
+    var match
+    var route
+
+    while (match !== true && idx < stack.length) {
+      layer = stack[idx++]
+      match = matchLayer(layer, path)
+      route = layer.route
+
+      if (typeof match !== 'boolean') {
+        // hold on to layerError
+        layerError = layerError || match
       }
 
-      // route object and not middleware
-      var route = layer.route
+      if (match !== true) {
+        continue
+      }
 
-      // if final route, then we support options
-      if (route) {
-        // we don't run any routes with error first
-        if (layerError) {
-          next(layerError)
-          return
-        }
+      if (!route) {
+        // process non-route handlers normally
+        continue
+      }
 
-        var method = req.method
-        var has_method = route._handles_method(method)
+      if (layerError) {
+        // routes do not match with a pending error
+        match = false
+        continue
+      }
 
-        // build up automatic options response
-        if (!has_method && method === 'OPTIONS') {
-          options.push.apply(options, route._options())
-        }
+      var method = req.method;
+      var has_method = route._handles_method(method)
 
-        // don't even bother
-        if (!has_method && method !== 'HEAD') {
-          next()
-          return
-        }
+      // build up automatic options response
+      if (!has_method && method === 'OPTIONS') {
+        options.push.apply(options, route._options())
+      }
 
-        // we can now dispatch to the route
-        req.route = route
+      // don't even bother matching route
+      if (!has_method && method !== 'HEAD') {
+        match = false
+        continue
       }
+    }
 
-      // Capture one-time layer values
-      req.params = self.mergeParams
-        ? mergeParams(layer.params, parentParams)
-        : layer.params
-      var layerPath = layer.path
+    // no match
+    if (match !== true) {
+      return done(layerError)
+    }
 
-      // this should be done for the layer
-      self.process_params(layer, paramcalled, req, res, function (err) {
-        if (err) {
-          next(layerError || err)
-          return
-        }
+    // store route for dispatch on change
+    if (route) {
+      req.route = route
+    }
 
-        if (route) {
-          return layer.handle_request(req, res, next)
-        }
+    // Capture one-time layer values
+    req.params = self.mergeParams
+      ? mergeParams(layer.params, parentParams)
+      : layer.params
+    var layerPath = layer.path
 
-        trim_prefix(layer, layerError, layerPath, path)
-      })
+    // this should be done for the layer
+    self.process_params(layer, paramcalled, req, res, function (err) {
+      if (err) {
+        return next(layerError || err)
+      }
+
+      if (route) {
+        return layer.handle_request(req, res, next)
+      }
+
+      trim_prefix(layer, layerError, layerPath, path)
     })
@@ -330,25 +355,2 @@ }
 /**
- * Match request to a layer.
- *
- * @private
- */
-
-Router.prototype.match_layer = function match_layer(layer, req, res, done) {
-  var error = null
-  var path
-
-  try {
-    path = parseUrl(req).pathname
-
-    if (!layer.match(path)) {
-      path = undefined
-    }
-  } catch (err) {
-    error = err
-  }
-
-  done(error, path)
-}
-
-/**
  * Process any parameters for the layer.
@@ -554,2 +556,33 @@ *
 /**
+ * Get pathname of request.
+ *
+ * @param {IncomingMessage} req
+ * @private
+ */
+
+function getPathname(req) {
+  try {
+    return parseUrl(req).pathname;
+  } catch (err) {
+    return undefined;
+  }
+}
+
+/**
+ * Match path to a layer.
+ *
+ * @param {Layer} layer
+ * @param {string} path
+ * @private
+ */
+
+function matchLayer(layer, path) {
+  try {
+    return layer.match(path);
+  } catch (err) {
+    return err;
+  }
+}
+
+/**
  * Merge params with parent params
@@ -556,0 +589,0 @@ *

lib/route.js

@@ -96,11 +96,21 @@ /*!
 
-    var layer = stack[idx++]
-    if (!layer) {
+    // no more matching layers
+    if (idx >= stack.length) {
       return done(err)
     }
 
-    if (layer.method && layer.method !== method) {
-      return next(err)
+    var layer
+    var match
+
+    // find next matching layer
+    while (match !== true && idx < stack.length) {
+      layer = stack[idx++]
+      match = !layer.method || layer.method === method
     }
 
+    // no match
+    if (match !== true) {
+      return done(err)
+    }
+
     if (err) {
@@ -107,0 +117,0 @@ layer.handle_error(err, req, res, next)

package.json

 {
   "name": "router",
   "description": "Simple middleware-style router",
-  "version": "1.0.0-beta.1",
+  "version": "1.0.0-beta.2",
   "author": "Douglas Christopher Wilson <[e-mail]>",
@@ -6,0 +6,0 @@ "license": "MIT",

README.md

@@ -30,2 +30,29 @@ # router
 
+## Example
+
+Simple example of using the router independently of any framework.
+
+```js
+var finalhandler = require('finalhandler')
+var http = require('http')
+var Router = require('router')
+
+var router = new Router()
+
+router.get('/', function (req, res) {
+  res.setHeader('Content-Type', 'text/plain; charset=utf-8')
+  res.end('hello, world!')
+})
+
+var server = http.createServer(app)
+
+server.listen(3000, function onListening() {
+  console.log('http server listening on port ' + this.address().port)
+})
+
+function app(req, res) {
+  router(req, res, finalhandler(req, res))
+}
+```
+
 ## Testing
@@ -32,0 +59,0 @@

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Major refactor

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New author

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Improved metrics

Total package byte prevSize

25671

increased by5.82%

Lines of code

860

increased by4.62%

Number of lines in readme file

77

increased by54%

Number of medium supply chain risk alerts

0

decreased by-100%

No dependency changes