/*
* Copyright (C) NGINX, Inc.
*/
'use strict';
const EventEmitter = require('events');
const http = require('http');
const util = require('util');
const unit_lib = require('unit-http/build/Release/unit-http.node');
const unit_socket = require('unit-http/socket');
const { Socket } = unit_socket;
function ServerResponse(req) {
EventEmitter.call(this);
this.headers = {};
}
util.inherits(ServerResponse, EventEmitter);
ServerResponse.prototype.statusCode = 200;
ServerResponse.prototype.statusMessage = undefined;
ServerResponse.prototype.headers_len = 0;
ServerResponse.prototype.headers_count = 0;
ServerResponse.prototype.headersSent = false;
ServerResponse.prototype.finished = false;
ServerResponse.prototype._finish = function _finish() {
this.headers = {};
this.headers_len = 0;
this.headers_count = 0;
this.finished = true;
};
ServerResponse.prototype.assignSocket = function assignSocket(socket) {
};
ServerResponse.prototype.detachSocket = function detachSocket(socket) {
};
ServerResponse.prototype.writeContinue = function writeContinue(cb) {
};
ServerResponse.prototype.writeProcessing = function writeProcessing(cb) {
};
ServerResponse.prototype.setHeader = function setHeader(key, value) {
if (typeof key !== 'string') {
throw new TypeError('Key argument must be a string');
}
let header_key_len = Buffer.byteLength(key, 'latin1');
let header_len = 0
let header_count = 0;
if (Array.isArray(value)) {
header_count = value.length;
value.forEach(function(val) {
if (typeof val !== 'string' && typeof val !== 'number') {
throw new TypeError('Array entries must be string or number');
}
header_len += Buffer.byteLength(val + "", 'latin1');
});
} else {
if (typeof value !== 'string' && typeof value !== 'number') {
throw new TypeError('Value argument must be string, number, or array');
}
header_count = 1;
header_len = Buffer.byteLength(value + "", 'latin1');
}
this.removeHeader(key);
this.headers[key] = value;
this.headers_len += header_len + (header_key_len * header_count);
this.headers_count += header_count;
};
ServerResponse.prototype.getHeader = function getHeader(name) {
return this.headers[name];
};
ServerResponse.prototype.getHeaderNames = function getHeaderNames() {
return Object.keys(this.headers);
};
ServerResponse.prototype.getHeaders = function getHeaders() {
return this.headers;
};
ServerResponse.prototype.hasHeader = function hasHeader(name) {
return name in this.headers;
};
ServerResponse.prototype.removeHeader = function removeHeader(name) {
if (!(name in this.headers)) {
return;
}
let name_len = Buffer.byteLength(name + "", 'latin1');
if (Array.isArray(this.headers[name])) {
this.headers_count -= this.headers[name].length;
this.headers_len -= this.headers[name].length * name_len;
this.headers[name].forEach(function(val) {
this.headers_len -= Buffer.byteLength(val + "", 'latin1');
});
} else {
this.headers_count--;
this.headers_len -= name_len + Buffer.byteLength(this.headers[name] + "", 'latin1');
}
delete this.headers[name];
};
ServerResponse.prototype.sendDate = function sendDate() {
throw new Error("Not supported");
};
ServerResponse.prototype.setTimeout = function setTimeout(msecs, callback) {
this.timeout = msecs;
if (callback) {
this.on('timeout', callback);
}
return this;
};
// for Express
ServerResponse.prototype._implicitHeader = function _implicitHeader() {
this.writeHead(this.statusCode);
};
ServerResponse.prototype.writeHead = writeHead;
ServerResponse.prototype.writeHeader = ServerResponse.prototype.writeHead;
function writeHead(statusCode, reason, obj) {
var originalStatusCode = statusCode;
statusCode |= 0;
if (statusCode < 100 || statusCode > 999) {
throw new ERR_HTTP_INVALID_STATUS_CODE(originalStatusCode);
}
if (typeof reason === 'string') {
this.statusMessage = reason;
} else {
if (!this.statusMessage) {
this.statusMessage = http.STATUS_CODES[statusCode] || 'unknown';
}
obj = reason;
}
this.statusCode = statusCode;
if (obj) {
var k;
var keys = Object.keys(obj);
for (var i = 0; i < keys.length; i++) {
k = keys[i];
if (k) {
this.setHeader(k, obj[k]);
}
}
}
unit_lib.unit_response_headers(this, statusCode, this.headers, this.headers_count, this.headers_len);
this.headersSent = true;
};
ServerResponse.prototype._writeBody = function(chunk, encoding, callback) {
var contentLength = 0;
if (!this.headersSent) {
this.writeHead(this.statusCode);
}
if (this.finished) {
return this;
}
if (typeof chunk === 'function') {
callback = chunk;
chunk = null;
} else if (typeof encoding === 'function') {
callback = encoding;
encoding = null;
}
if (chunk) {
if (typeof chunk !== 'string' && !(chunk instanceof Buffer)) {
throw new TypeError('First argument must be a string or Buffer');
}
if (typeof chunk === 'string') {
contentLength = Buffer.byteLength(chunk, encoding);
} else {
contentLength = chunk.length;
}
unit_lib.unit_response_write(this, chunk, contentLength);
}
if (typeof callback === 'function') {
callback(this);
}
};
ServerResponse.prototype.write = function write(chunk, encoding, callback) {
this._writeBody(chunk, encoding, callback);
return true;
};
ServerResponse.prototype.end = function end(chunk, encoding, callback) {
this._writeBody(chunk, encoding, callback);
this.finished = true;
return this;
};
function ServerRequest(server) {
EventEmitter.call(this);
this.server = server;
}
util.inherits(ServerRequest, EventEmitter);
ServerRequest.prototype.unpipe = undefined;
ServerRequest.prototype.setTimeout = function setTimeout(msecs, callback) {
this.timeout = msecs;
if (callback) {
this.on('timeout', callback);
}
return this;
};
ServerRequest.prototype.statusCode = function statusCode() {
/* Only valid for response obtained from http.ClientRequest. */
};
ServerRequest.prototype.statusMessage = function statusMessage() {
/* Only valid for response obtained from http.ClientRequest. */
};
ServerRequest.prototype.trailers = function trailers() {
throw new Error("Not supported");
};
ServerRequest.prototype.METHODS = function METHODS() {
return http.METHODS;
};
ServerRequest.prototype.STATUS_CODES = function STATUS_CODES() {
return http.STATUS_CODES;
};
ServerRequest.prototype.listeners = function listeners() {
return [];
};
ServerRequest.prototype.resume = function resume() {
return [];
};
function Server(requestListener) {
EventEmitter.call(this);
this.unit = new unit_lib.Unit();
this.unit.server = this;
this.unit.createServer();
this.socket = Socket;
this.request = ServerRequest;
this.response = ServerResponse;
if (requestListener) {
this.on('request', requestListener);
}
}
util.inherits(Server, EventEmitter);
Server.prototype.setTimeout = function setTimeout(msecs, callback) {
this.timeout = msecs;
if (callback) {
this.on('timeout', callback);
}
return this;
};
Server.prototype.listen = function () {
this.unit.listen();
};
Server.prototype.run_events = function (server, req, res) {
/* Important!!! setImmediate starts the next iteration in Node.js loop. */
setImmediate(function () {
server.emit("request", req, res);
Promise.resolve().then(() => {
let buf = server.unit._read(req.socket.req_pointer);
if (buf.length != 0) {
req.emit("data", buf);
}
req.emit("end");
});
Promise.resolve().then(() => {
req.emit("finish");
if (res.finished) {
unit_lib.unit_response_end(res);
}
});
});
};
function connectionListener(socket) {
}
module.exports = {
STATUS_CODES: http.STATUS_CODES,
Server,
ServerResponse,
ServerRequest,
_connectionListener: connectionListener
};
