semillas de semilla angular-web.js y cors

Question

Nov 17, 2013, 09:49 PM

cors javascript angularjs jquery node.js

semillas de semilla angular-web.js y cors

Estoy apilado para el segundo día ... Estoy tratando de obtener un poco de json del dominio externo, pero rompí con CORS. Estoy casi seguroCómo usar JSONP en el recurso AngularJS, ese problema es con mi servidor node.js que no envía

Origin: http://api.bob.com

Por lo tanto, leí un millón de respuestas de google de CORS, pero todos dijeron casi lo mismo:

var allowCrossDomain = function(req, res, next) {
  res.header("Access-Control-Allow-Origin", "*");
  res.header("Access-Control-Allow-Headers", "X-Requested-With");
  next();
};

(...)

app.use(allowCrossDomain);

Pero ... no hay nada similar a la aplicación en scripts \ web-script.js que pueda usar como aplicación.

El web-script.js a continuación (es solo del paquete)

#!/usr/bin/env node

var util = require('util'),
    http = require('http'),
    fs = require('fs'),
    url = require('url'),
    events = require('events');

var DEFAULT_PORT = 8000;

function main(argv) {
  new HttpServer({
    'GET': createServlet(StaticServlet),
    'HEAD': createServlet(StaticServlet)
  }).start(Number(argv[2]) || DEFAULT_PORT);
}

function escapeHtml(value) {
  return value.toString().
    replace('<', '&lt;').
    replace('>', '&gt;').
    replace('"', '&quot;');
}

function createServlet(Class) {
  var servlet = new Class();
  return servlet.handleRequest.bind(servlet);
}

/**
 * An Http server implementation that uses a map of methods to decide
 * action routing.
 *
 * @param {Object} Map of method => Handler function
 */
function HttpServer(handlers) {
  this.handlers = handlers;
  this.server = http.createServer(this.handleRequest_.bind(this));
}

HttpServer.prototype.start = function(port) {
  this.port = port;
  this.server.listen(port);
  util.puts('Http Server running at http://localhost:' + port + '/');
};

HttpServer.prototype.parseUrl_ = function(urlString) {
  var parsed = url.parse(urlString);
  parsed.pathname = url.resolve('/', parsed.pathname);
  return url.parse(url.format(parsed), true);
};

HttpServer.prototype.handleRequest_ = function(req, res) {
  var logEntry = req.method + ' ' + req.url;
  if (req.headers['user-agent']) {
    logEntry += ' ' + req.headers['user-agent'];
  }
  util.puts(logEntry);
  req.url = this.parseUrl_(req.url);
  var handler = this.handlers[req.method];
  if (!handler) {
    res.writeHead(501);
    res.end();
  } else {
    handler.call(this, req, res);
  }
};

/**
 * Handles static content.
 */
function StaticServlet() {}

StaticServlet.MimeMap = {
  'txt': 'text/plain',
  'html': 'text/html',
  'css': 'text/css',
  'xml': 'application/xml',
  'json': 'application/json',
  'js': 'application/javascript',
  'jpg': 'image/jpeg',
  'jpeg': 'image/jpeg',
  'gif': 'image/gif',
  'png': 'image/png',
  'svg': 'image/svg+xml'
};

StaticServlet.prototype.handleRequest = function(req, res) {
  var self = this;
  var path = ('./' + req.url.pathname).replace('//','/').replace(/%(..)/g, function(match, hex){
    return String.fromCharCode(parseInt(hex, 16));
  });
  var parts = path.split('/');
  if (parts[parts.length-1].charAt(0) === '.')
    return self.sendForbidden_(req, res, path);
  fs.stat(path, function(err, stat) {
    if (err)
      return self.sendMissing_(req, res, path);
    if (stat.isDirectory())
      return self.sendDirectory_(req, res, path);
    return self.sendFile_(req, res, path);
  });
}

StaticServlet.prototype.sendError_ = function(req, res, error) {
  res.writeHead(500, {
      'Content-Type': 'text/html'
  });
  res.write('<!doctype html>\n');
  res.write('<title>Internal Server Error</title>\n');
  res.write('<h1>Internal Server Error</h1>');
  res.write('<pre>' + escapeHtml(util.inspect(error)) + '</pre>');
  util.puts('500 Internal Server Error');
  util.puts(util.inspect(error));
};

StaticServlet.prototype.sendMissing_ = function(req, res, path) {
  path = path.substring(1);
  res.writeHead(404, {
      'Content-Type': 'text/html'
  });
  res.write('<!doctype html>\n');
  res.write('<title>404 Not Found</title>\n');
  res.write('<h1>Not Found</h1>');
  res.write(
    '<p>The requested URL ' +
    escapeHtml(path) +
    ' was not found on this server.</p>'
  );
  res.end();
  util.puts('404 Not Found: ' + path);
};

StaticServlet.prototype.sendForbidden_ = function(req, res, path) {
  path = path.substring(1);
  res.writeHead(403, {
      'Content-Type': 'text/html'
  });
  res.write('<!doctype html>\n');
  res.write('<title>403 Forbidden</title>\n');
  res.write('<h1>Forbidden</h1>');
  res.write(
    '<p>You do not have permission to access ' +
    escapeHtml(path) + ' on this server.</p>'
  );
  res.end();
  util.puts('403 Forbidden: ' + path);
};

StaticServlet.prototype.sendRedirect_ = function(req, res, redirectUrl) {
  res.writeHead(301, {
      'Content-Type': 'text/html',
      'Location': redirectUrl
  });
  res.write('<!doctype html>\n');
  res.write('<title>301 Moved Permanently</title>\n');
  res.write('<h1>Moved Permanently</h1>');
  res.write(
    '<p>The document has moved <a href="' +
    redirectUrl +
    '">here</a>.</p>'
  );
  res.end();
  util.puts('301 Moved Permanently: ' + redirectUrl);
};

StaticServlet.prototype.sendFile_ = function(req, res, path) {
  var self = this;
  var file = fs.createReadStream(path);
  res.writeHead(200, {
    'Content-Type': StaticServlet.
      MimeMap[path.split('.').pop()] || 'text/plain'
  });
  if (req.method === 'HEAD') {
    res.end();
  } else {
    file.on('data', res.write.bind(res));
    file.on('close', function() {
      res.end();
    });
    file.on('error', function(error) {
      self.sendError_(req, res, error);
    });
  }
};

StaticServlet.prototype.sendDirectory_ = function(req, res, path) {
  var self = this;
  if (path.match(/[^\/]$/)) {
    req.url.pathname += '/';
    var redirectUrl = url.format(url.parse(url.format(req.url)));
    return self.sendRedirect_(req, res, redirectUrl);
  }
  fs.readdir(path, function(err, files) {
    if (err)
      return self.sendError_(req, res, error);

    if (!files.length)
      return self.writeDirectoryIndex_(req, res, path, []);

    var remaining = files.length;
    files.forEach(function(fileName, index) {
      fs.stat(path + '/' + fileName, function(err, stat) {
        if (err)
          return self.sendError_(req, res, err);
        if (stat.isDirectory()) {
          files[index] = fileName + '/';
        }
        if (!(--remaining))
          return self.writeDirectoryIndex_(req, res, path, files);
      });
    });
  });
};

StaticServlet.prototype.writeDirectoryIndex_ = function(req, res, path, files) {
  path = path.substring(1);
  res.writeHead(200, {
    'Content-Type': 'text/html'
  });
  if (req.method === 'HEAD') {
    res.end();
    return;
  }
  res.write('<!doctype html>\n');
  res.write('<title>' + escapeHtml(path) + '</title>\n');
  res.write('<style>\n');
  res.write('  ol { list-style-type: none; font-size: 1.2em; }\n');
  res.write('</style>\n');
  res.write('<h1>Directory: ' + escapeHtml(path) + '</h1>');
  res.write('<ol>');
  files.forEach(function(fileName) {
    if (fileName.charAt(0) !== '.') {
      res.write('<li><a href="' +
        escapeHtml(fileName) + '">' +
        escapeHtml(fileName) + '</a></li>');
    }
  });
  res.write('</ol>');
  res.end();
};

// Must be last,
main(process.argv);

Por favor, ayúdame a StackOverflow, eres mi última esperanza.