forbid now uses path-to-regexp paths.. docs.. rewrite examples

This commit is contained in:
Lloyd Brookes
2015-11-17 11:18:25 +00:00
parent 7a991cc5f7
commit b3de999e4d
11 changed files with 73 additions and 19 deletions

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@ -37,24 +37,42 @@ $ ws --spa index.html
By default, typical SPA urls (e.g. `/user/1`, `/login`) would return `404 Not Found` as a file does not exist with that path. By marking `index.html` as the SPA you create this rule: By default, typical SPA urls (e.g. `/user/1`, `/login`) would return `404 Not Found` as a file does not exist with that path. By marking `index.html` as the SPA you create this rule:
*If a static file at the requested path exists (e.g. `/css/style.css`) then serve it, if it does not (e.g. `/login`) then serve the SPA for client-side processing.* *If a static file at the requested path exists (e.g. `/css/style.css`) then serve it, if it does not (e.g. `/login`) then serve the SPA and handle the route client-side.*
### Access Control ### Access Control
Access to all files is allowed, beside those in the forbidden list (e.g. config files): By default, access to all files is allowed (including dot files). Use `--forbid` to establish a blacklist:
```sh ```sh
$ ws --forbid .json .yml $ ws --forbid .json .yml
serving at http://localhost:8000 serving at http://localhost:8000
``` ```
[Path syntax](http://expressjs.com/guide/routing.html#route-paths)
### URL rewriting ### URL rewriting
When urls don't map to your directory structure, rewrite: Your application requested `/css/style.css` but it's stored at `/build/css/style.css`. Create a rewrite rule:
```sh ```sh
$ ws --rewrite /css=>/build/css $ ws --rewrite "/css/style.css -> /build/css/style.css"
``` ```
Rewrite to remote servers (proxy): Or, more generally (matching any stylesheet path under `/css`):
```sh
$ ws --rewrite "/css/:stylesheet -> /build/css/:stylesheet"
```
If a deep structure is involved it may be easier to mount the entire contents of `/build/css` to the `/css` path: (matches any stylesheet path under `/css`, `/css/a`, `/css/a/b` etc.)
```sh
$ ws --rewrite "/css/* -> /build/css/$1"
```
#### Proxied rewrite
If the `to` address contains a hostname local-web-server will act as a proxy - the remote resource will be fetched and returned
```sh ```sh
$ ws --rewrite "/api => http://api.example.com/api" \ $ ws --rewrite "/api => http://api.example.com/api" \
"/npm => http://registry.npmjs.com" \ "/npm => http://registry.npmjs.com" \

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@ -12,6 +12,9 @@ const usage = cli.getUsage(cliOptions.usageData)
const stored = loadConfig('local-web-server') const stored = loadConfig('local-web-server')
const options = collectOptions() const options = collectOptions()
// TODO --config show the merged options
// TODO summary line on server launch
if (options.misc.help) { if (options.misc.help) {
console.log(usage) console.log(usage)
process.exit(0) process.exit(0)
@ -40,10 +43,10 @@ localWebServer({
}, },
compress: options.server.compress, compress: options.server.compress,
mime: options.server.mime, mime: options.server.mime,
forbid: options.server.forbid.map(regexp => RegExp(regexp, 'i')), forbid: options.server.forbid,
spa: options.server.spa, spa: options.server.spa,
'no-cache': options.server['no-cache'], 'no-cache': options.server['no-cache'],
rewrite: parseRewriteRules(options.server.rewrite) rewrite: options.server.rewrite
}).listen(options.server.port, onServerUp) }).listen(options.server.port, onServerUp)
function halt (err) { function halt (err) {
@ -74,7 +77,11 @@ function collectOptions () {
port: 8000, port: 8000,
directory: process.cwd(), directory: process.cwd(),
forbid: [], forbid: [],
proxyRoutes: [] rewrite: []
}
if (options.server.rewrite) {
options.server.rewrite = parseRewriteRules(options.server.rewrite)
} }
/* override built-in defaults with stored config and then command line args */ /* override built-in defaults with stored config and then command line args */
@ -83,7 +90,7 @@ function collectOptions () {
} }
function parseRewriteRules (rules) { function parseRewriteRules (rules) {
return rules.map(rule => { return rules && rules.map(rule => {
const matches = rule.match(/(\S*)\s*->\s*(\S*)/) const matches = rule.match(/(\S*)\s*->\s*(\S*)/)
return { return {
from: matches[1], from: matches[1],

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@ -0,0 +1,5 @@
{
"forbid": [
"/admin/*", "*.php"
]
}

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@ -0,0 +1 @@
<h1>Forbidden page</h1>

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@ -0,0 +1 @@
<h1>A permitted page</h1>

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@ -0,0 +1,5 @@
<h1>Forbidden routes</h1>
<p>
Notice you can access <a href="allowed.html">this page</a>, but not <a href="admin/blocked.html">this admin page</a> or <a href="something.php">php file</a>.
</p>

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@ -0,0 +1 @@
<?php echo "i'm coding PHP templatez!\n" ?>

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@ -1,6 +1,6 @@
{ {
"rewrite": [ "rewrite": [
{ "from": "/css/*", "to": "/styles/$1" }, { "from": "/css/*", "to": "/build/styles/$1" },
{ "from": "/npm/*", "to": "http://registry.npmjs.org/$1" }, { "from": "/npm/*", "to": "http://registry.npmjs.org/$1" },
{ "from": "/gh/:user/repo/:name", "to": "https://api.github.com/repos/:user/:name" } { "from": "/gh/:user/repo/:name", "to": "https://api.github.com/repos/:user/:name" }
] ]

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@ -37,24 +37,42 @@ $ ws --spa index.html
By default, typical SPA urls (e.g. `/user/1`, `/login`) would return `404 Not Found` as a file does not exist with that path. By marking `index.html` as the SPA you create this rule: By default, typical SPA urls (e.g. `/user/1`, `/login`) would return `404 Not Found` as a file does not exist with that path. By marking `index.html` as the SPA you create this rule:
*If a static file at the requested path exists (e.g. `/css/style.css`) then serve it, if it does not (e.g. `/login`) then serve the SPA for client-side processing.* *If a static file at the requested path exists (e.g. `/css/style.css`) then serve it, if it does not (e.g. `/login`) then serve the SPA and handle the route client-side.*
### Access Control ### Access Control
Access to all files is allowed, beside those in the forbidden list (e.g. config files): By default, access to all files is allowed (including dot files). Use `--forbid` to establish a blacklist:
```sh ```sh
$ ws --forbid .json .yml $ ws --forbid .json .yml
serving at http://localhost:8000 serving at http://localhost:8000
``` ```
[Path syntax](http://expressjs.com/guide/routing.html#route-paths)
### URL rewriting ### URL rewriting
When urls don't map to your directory structure, rewrite: Your application requested `/css/style.css` but it's stored at `/build/css/style.css`. Create a rewrite rule:
```sh ```sh
$ ws --rewrite /css=>/build/css $ ws --rewrite "/css/style.css -> /build/css/style.css"
``` ```
Rewrite to remote servers (proxy): Or, more generally (matching any stylesheet path under `/css`):
```sh
$ ws --rewrite "/css/:stylesheet -> /build/css/:stylesheet"
```
If a deep structure is involved it may be easier to mount the entire contents of `/build/css` to the `/css` path: (matches any stylesheet path under `/css`, `/css/a`, `/css/a/b` etc.)
```sh
$ ws --rewrite "/css/* -> /build/css/$1"
```
#### Proxied rewrite
If the `to` address contains a hostname local-web-server will act as a proxy - the remote resource will be fetched and returned
```sh ```sh
$ ws --rewrite "/api => http://api.example.com/api" \ $ ws --rewrite "/api => http://api.example.com/api" \
"/npm => http://registry.npmjs.com" \ "/npm => http://registry.npmjs.com" \

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@ -129,9 +129,7 @@ function localWebServer (options) {
function logstalgiaDate () { function logstalgiaDate () {
var d = new Date() var d = new Date()
return (`${d.getDate()}/${d.getUTCMonth()}/${d.getFullYear()}:${d.toTimeString()}`) return (`${d.getDate()}/${d.getUTCMonth()}/${d.getFullYear()}:${d.toTimeString()}`).replace('GMT', '').replace(' (BST)', '')
.replace('GMT', '')
.replace(' (BST)', '')
} }
function proxyRequest (route) { function proxyRequest (route) {
@ -174,7 +172,7 @@ function proxyRequest (route) {
function blacklist (forbid) { function blacklist (forbid) {
return function blacklist (ctx, next) { return function blacklist (ctx, next) {
if (forbid.some(regexp => regexp.test(ctx.path))) { if (forbid.some(expression => pathToRegexp(expression).test(ctx.path))) {
ctx.throw(403, http.STATUS_CODES[403]) ctx.throw(403, http.STATUS_CODES[403])
} else { } else {
return next() return next()