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Code Issues Releases Wiki Activity

serve 404 when not possible key

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John Crepezzi 2011-11-21 23:13:46 -05:00
parent 9ed330bdae
commit 32b4f842b7
3 changed files with 38 additions and 21 deletions
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1
TODO
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@ -1,6 +1,5 @@
cache headers for static assets (and on document GET)
tests
add FAVICON (or force 404)
add feedback for errors to UI - esp. too long
add about page

5
lib/document_handler.js
View file

@ -78,6 +78,11 @@ DocumentHandler.prototype.chooseKey = function(callback) {
});
};
// Return a boolean indicating whether or not something can be a key
DocumentHandler.potentialKey = function(key) {
return key.match(/^[a-zA-Z0-9]+$/);
};
// Generate a random key
DocumentHandler.prototype.randomKey = function() {
var text = '';

51
lib/static_handler.js
View file

@ -3,6 +3,8 @@ var fs = require('fs');
var winston = require('winston');
var DocumentHandler = require('./document_handler');
// For serving static assets
var StaticHandler = function(path, cacheAssets) {
@ -33,27 +35,28 @@ StaticHandler.contentTypeFor = function(ext) {
// Handle a request, and serve back the asset if it exists
StaticHandler.prototype.handle = function(incPath, response) {
// Go to index if not found or /
if (!this.availablePaths[incPath]) incPath = this.defaultPath;
var filePath = this.basePath + (incPath == '/' ? this.defaultPath : incPath);
// And then stream the file back - either from the cache or from source
var cached = this.cacheAssets && this.isCached(filePath);
var method = cached ? this.serveCached : this.retrieve;
// Run!
var _this = this;
method(filePath, function(error, content) {
// Get the content
if (content) {
var contentType = StaticHandler.contentTypeFor(path.extname(filePath));
response.writeHead(200, { 'content-type': contentType });
response.end(content, 'utf-8');
// Stick it in the cache if its not in there
if (!cached && _this.cacheAssets) {
StaticHandler.cache[filePath] = content;
}
// If this is a potential key, show the index - otherwise
// bust out a 404
if (!this.availablePaths[incPath]) {
if (incPath === '/' || DocumentHandler.potentialKey(incPath.substring(1))) {
incPath = this.defaultPath;
}
// Or break down and cry
else {
winston.warn('failed to find static asset', { path: incPath });
response.writeHead(404, { 'content-type': 'application/json' });
response.end(JSON.stringify({ message: 'no such file' }));
return;
}
}
// And then stream the file back - either from the cache or from source
var filePath = this.basePath + (incPath == '/' ? this.defaultPath : incPath);
var cached = this.cacheAssets && this.isCached(filePath);
// Go get'er
var _this = this;
var method = cached ? this.serveCached : this.retrieve;
method(filePath, function(error, content) {
// detect errors
if (error) {
winston.error('unable to read file', { path: filePath, error: error });
response.writeHead(500, { 'content-type': 'application/json' });
response.end(JSON.stringify({ message: 'IO: Unable to read file' }));
@ -62,6 +65,16 @@ StaticHandler.prototype.handle = function(incPath, response) {
StaticHandler.cache[filePath] = null;
}
}
// Get the content
else {
var contentType = StaticHandler.contentTypeFor(path.extname(filePath));
response.writeHead(200, { 'content-type': contentType });
response.end(content, 'utf-8');
// Stick it in the cache if its not in there
if (!cached && _this.cacheAssets) {
StaticHandler.cache[filePath] = content;
}
}
});
};