haste-server/lib/document_handler.js

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var winston = require('winston');
// For handling serving stored documents
var DocumentHandler = function(options) {
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if (options) {
this.keyLength = options.keyLength || 20;
}
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};
// TODO implement with FS backend
DocumentHandler.documents = {};
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// Handle retrieving a document
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DocumentHandler.prototype.handleGet = function(key, response) {
if (DocumentHandler.documents[key]) {
winston.verbose('retrieved document', { key: key });
response.writeHead(200, { 'content-type': 'application/json' });
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response.end(JSON.stringify({ data: DocumentHandler.documents[key], key: key }));
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}
else {
winston.warn('document not found', { key: key });
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response.writeHead(404, { 'content-type': 'application/json' });
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response.end(JSON.stringify({ message: 'document not found' }));
}
};
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// Handle adding a new Document
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DocumentHandler.prototype.handlePost = function(request, response) {
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var key = this.randomKey();
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request.on('data', function(data) {
if (!DocumentHandler.documents[key]) {
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response.writeHead(200, { 'content-type': 'application/json' });
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DocumentHandler.documents[key] = '';
}
DocumentHandler.documents[key] += data.toString();
});
request.on('end', function(end) {
winston.verbose('added document', { key: key });
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response.end(JSON.stringify({ key: key }));
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});
request.on('error', function(error) {
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winston.error('connection error: ' + error.message);
response.writeHead(500, { 'content-type': 'application/json' });
response.end(JSON.stringify({ message: 'connection error' }));
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});
};
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// Generate a random key
DocumentHandler.prototype.randomKey = function() {
var text = '';
var keyspace = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
for (var i = 0; i < this.keyLength; i++) {
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text += keyspace.charAt(Math.floor(Math.random() * keyspace.length));
}
return text;
};
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module.exports = DocumentHandler;