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handlers.js
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handlers.js
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global.cachedFiles = [];
global.tempData = {};
global.ConnetionS = {};//This shouldnt be done this way
class DirectoryEntryHandler {
headersWritten;
responseCode;
responseHeaders;
responseLength;
htaccessName;
fs;
req;
res;
opts;
request;
entry;
file;
constructor(FileSystem, request, app, req, res) {
this.headersWritten = false;
this.responseCode = null;
this.responseHeaders = {};
this.responseLength = 0;
this.htaccessName = '.swshtaccess';
this.fs = FileSystem;
this.req = req;
this.res = res;
this.opts = app;
this.request = request;
this.entry = null;
this.file = null;
}
// Start Base Handler
options() {
if (this.opts.cors) {
this.set_status(200);
this.finish();
} else {
this.set_status(403);
this.finish();
}
}
error(msg, httpCode) {
const defaultMsg = '<h1>' + httpCode + ' - ' + WSC.HTTPRESPONSES[httpCode] + '</h1>\n\n<p>' + msg + '</p>';
if (httpCode === 401) {
this.setHeader("WWW-Authenticate", "Basic");
}
if (this.request.method === "HEAD") {
this.responseLength = 0;
this.writeHeaders(httpCode);
this.finish();
return;
} else {
this.setHeader('content-type','text/html; charset=utf-8');
if (typeof this.opts['custom'+httpCode] === 'string' && this.opts['custom'+httpCode].trim() !== '') {
const file = this.fs.getByPath(this.opts['custom'+httpCode]);
if (!file.error && file.isFile) {
let data = file.text();
if (typeof this.opts.customErrorReplaceString === 'string' && this.opts.customErrorReplaceString.trim() !== '') {
data = data.replaceAll(this.opts.customErrorReplaceString, this.request.origpath.htmlEscape());
}
this.write(data, httpCode);
this.finish();
return;
}
}
this.write(defaultMsg, httpCode);
this.finish();
}
}
setCORS() {
this.setHeader('access-control-allow-origin','*');
this.setHeader('access-control-allow-methods','GET, POST, PUT, DELETE');
this.setHeader('access-control-max-age','120');
}
get_argument(k, def) {
return this.request.arguments[k] || def;
}
getHeader(k, defaultvalue) {
return this.request.headers[k] || defaultvalue;
}
setHeader(k, v) {
this.responseHeaders[k] = v;
this.res.setHeader(k, v);
}
set_status(code) {
console.assert(!this.headersWritten);
this.responseCode = code;
}
writeHeaders(code) {
console.assert(!this.headersWritten);
if (code === undefined || isNaN(code)) { code = this.responseCode || 200 };
this.res.statusCode = code
this.res.statusMessage = WSC.HTTPRESPONSES[code];
if (this.responseHeaders['transfer-encoding'] !== 'chunked') {
console.assert(typeof this.responseLength === 'number');
this.res.setHeader('content-length', this.responseLength);
}
const p = this.request.path.split('.');
if (p.length > 1 && ! this.responseHeaders['content-type']) {
const ext = p[p.length-1].toLowerCase();
let type = WSC.MIMETYPES[ext];
if (type) {
const default_types = ['text/html',
'text/xml',
'text/plain',
"text/vnd.wap.wml",
"application/javascript",
"application/rss+xml"]
if (default_types.includes(type)) {
type += '; charset=utf-8';
}
this.setHeader('content-type',type);
}
}
if (this.opts.cors) {
this.setCORS();
}
this.headersWritten = true;
}
writeChunk(data) {
if (!this.headersWritten) this.writeHeaders();
if (!Buffer.isBuffer(data)) {
data = Buffer.from(data);
}
this.res.write(data);
}
write(data, code, opt_finish) {
if (!Buffer.isBuffer(data)) {
data = Buffer.from(data);
}
const byteLength = data.byteLength;
console.assert(byteLength !== undefined);
if (code === undefined) { code = 200 };
this.responseLength += byteLength;
if (!this.headersWritten) this.writeHeaders(code);
this.res.write(data);
if (opt_finish !== false) this.finish();
}
finish() {
global.ConnetionS[this.request.ip]--;
if (! this.headersWritten) {
this.writeHeaders();
}
this.res.end();
}
// End Base Handler
head() {
this.get();
}
tryHandle() {
if (!this.request.ip) {
this.error('', 403);
return;
}
//This needs to be re-done
if (!global.ConnetionS[this.request.ip] || global.ConnetionS[this.request.ip] < 0) {
global.ConnetionS[this.request.ip] = 0;
}
if (this.opts.ipThrottling && this.opts.ipThrottling !== 0 && global.ConnetionS[this.request.ip] > this.opts.ipThrottling) {
this.error('', 429);
return;
}
global.ConnetionS[this.request.ip]++;
console.log("["+(new Date()).toLocaleString()+"]", this.request.ip + ':', 'Request',this.request.method, this.request.uri);
const filename = this.request.path.split('/').pop();
if (filename === this.htaccessName) {
this.error('', 400);
return;
}
if (this.opts.httpAuth) {
let validAuth = false;
const auth = this.request.headers['authorization'];
if (auth) {
if (auth.slice(0,6).toLowerCase() === 'basic ') {
const auth_decoded = atob(auth.slice(6,auth.length));
const auth_username = auth_decoded.substring(0, auth_decoded.indexOf(":"));
const auth_password = auth_decoded.substring(auth_decoded.indexOf(":")+1);
if (auth_username === this.opts.httpAuthUsername &&
auth_password === this.opts.httpAuthPassword) {
validAuth = true;
}
}
}
if (!validAuth) {
this.error("", 401);
return;
}
}
if (this.opts.spa && !this.request.uri.match(/.*\.[\d\w]+$/)) {
this.rewrite_to = this.opts.rewriteTo || "/index.html";
}
if (this[this.request.method.toLowerCase()]) {
try {
const a = this[this.request.method.toLowerCase()]();
if (a && typeof a.catch === 'function') {
a.catch((e) => {
this.error("Something went wrong", 500);
if (e) console.warn('error: ', e);
})
}
} catch(e) {
if (e) console.warn('Error: ', e);
this.error("Something went wrong", 500);
}
} else {
this.writeHeaders(501);
this.finish();
}
}
deletePutHtaccess(allow, deny, callback, callbackSkip) {
if (!this.opts.htaccess) {
callback();
return;
}
const finalpath = WSC.utils.stripOffFile(this.request.origpath);
const htaccesspath = finalpath+this.htaccessName;
let file = this.fs.getByPath(htaccesspath);
if (file.error) {
callback();
return;
}
const dataa = file.text();
let origdata;
try {
origdata = JSON.parse(dataa);
} catch(e) {
console.error('Htaccess JSON parse error', e, htaccesspath);
this.responseLength = 0;
this.writeHeaders(500);
this.finish();
return;
}
const filerequested = this.request.origpath.split('/').pop();
const filefound = false;
let auth = false;
let authdata;
let data;
if (!Array.isArray(origdata)) {
console.error('Is not an array', htaccesspath)
callback();
return;
}
for (let i=0; i<origdata.length; i++) {
if (! origdata[i].type) {
this.htaccessError('Missing Type');
return;
}
if (! origdata[i].request_path && origdata[i].type !== 'directory listing') {
this.htaccessError('Missing Request Path');
return;
}
if (origdata[i].type === 403 && origdata[i].request_path === filerequested) {
this.error('', 403);
return;
}
if (origdata[i].request_path === filerequested && ['serverSideJavaScript', 'POSTkey'].includes(origdata[i].type)) {
this.error('', 400);
return;
}
if (origdata[i].type === 401 && !auth && ['all files', filerequested].includes(origdata[i].request_path)) {
authdata = origdata[i];
auth = true;
}
if ([filerequested, 'all files'].includes(origdata[i].request_path) && [allow, deny].includes(origdata[i].type) && !filefound) {
data = origdata[i];
filefound = true;
}
}
if (auth) {
if (!authdata.username || !authdata.password) {
this.htaccessError('Missing Auth Username and/or Password');
return;
}
let validAuth = false;
const authHeader = this.request.headers['authorization'];
if (authHeader) {
if (authHeader.slice(0,6).toLowerCase() === 'basic ') {
const userpass = atob(authHeader.slice(6,auth.length)).split(':');
if (userpass[0] === authdata.username && userpass[1] === authdata.password) {
validAuth = true;
}
}
}
if (!validAuth) {
this.error("", 401);
return;
}
}
if (!filefound) {
callback();
return;
}
if (data.type === allow) {
callbackSkip();
} else if (data.type === deny) {
this.responseLength = 0;
this.writeHeaders(400);
this.finish();
return;
}
}
delete() {
function deleteMain() {
const entry = this.fs.getByPath(this.request.origpath);
if (entry.error) {
this.writeHeaders(404);
this.finish();
return;
}
const result = entry.remove();
if (result.error) {
this.writeHeaders(500);
this.finish();
return;
}
this.writeHeaders(200);
this.finish();
}
function deleteCheck() {
if (!this.opts.delete) {
this.responseLength = 0;
this.writeHeaders(400);
this.finish();
return;
}
deleteMain.bind(this)();
}
this.deletePutHtaccess('allow delete', 'deny delete', deleteCheck.bind(this), deleteMain.bind(this));
}
put() {
function putMain() {
const entry = this.fs.getByPath(this.request.origpath)
if (entry.error || this.opts.replace) {
if (!entry.error) {
if (entry.remove().error) {
this.writeHeaders(500);
this.finish();
}
}
const stream = this.fs.createWriteStream(this.request.origpath);
stream.on('error', (err) => {
console.error('Error writing file', err);
this.writeHeaders(500);
this.finish();
})
this.req.pipe(stream);
this.req.on('end', () => {
this.writeHeaders(201);
this.finish();
})
} else {
this.writeHeaders(400);
this.finish();
}
}
function putCheck() {
if (!this.opts.upload) {
this.responseLength = 0;
this.writeHeaders(400);
this.finish();
return;
}
putMain.bind(this)();
}
this.deletePutHtaccess('allow put', 'deny put', putCheck.bind(this), putMain.bind(this));
}
post() {
const htaccessPath = WSC.utils.stripOffFile(this.request.origpath);
let file = this.fs.getByPath(htaccessPath+this.htaccessName);
if (!file || file.error || file.isDirectory) {
this.error('', 404);
return;
}
let data = file.text();
let origdata;
try {
origdata = JSON.parse(data);
} catch(e) {
console.warn('Htaccess JSON parse error', e, htaccessPath);
this.error('', 500);
this.finish();
return;
}
if (!Array.isArray(origdata)) {
console.warn('is not an array', htaccessPath);
this.error('invalid config', 500);
this.finish();
return;
}
const filerequested = this.request.origpath.split('/').pop();
let filefound = false;
let auth = false;
let authdata;
for (let i=0; i<origdata.length; i++) {
if (! origdata[i].type) {
this.htaccessError('Missing Type');
return;
}
if (!origdata[i].request_path && origdata[i].type !== 'directory listing') {
this.htaccessError('Missing Request Path');
return;
}
origdata[i].original_request_path = origdata[i].request_path;
origdata[i].filerequested = filerequested;
origdata[i].request_path = WSC.utils.htaccessFileRequested(origdata[i].request_path, this.opts.showIndex);
if (origdata[i].type === 401 && !auth && [filerequested, 'all files'].includes(origdata[i].request_path)) {
authdata = origdata[i];
auth = true;
}
if (origdata[i].type === 403 && origdata[i].request_path === filerequested) {
this.error('', 403);
return;
}
if (origdata[i].type === 'POSTkey' && !filefound) {
if (this.request.origpath.split('/').pop() === origdata[i].original_request_path ||
(origdata[i].original_request_path.split('/').pop() === 'index.html' &&
this.request.origpath.endsWith('/') &&
this.opts.showIndex) ||
(['html', 'htm', 'xhtm', 'xhtml'].includes(origdata[i].original_request_path.split('.').pop()) &&
origdata[i].original_request_path.split('/').pop().split('.')[0] === this.request.origpath.split('/').pop()
&& this.opts.excludeDotHtml)) {
data = origdata[i];
filefound = true;
}
}
}
// Still need to validate POST key
if (auth) {
if (!authdata.username || !authdata.password) {
this.htaccessError('Missing Auth Username and/or Password');
return;
}
let validAuth = false;
const authHeader = this.request.headers['authorization'];
if (authHeader) {
if (authHeader.slice(0,6).toLowerCase() === 'basic ') {
const userpass = atob(authHeader.slice(6, authHeader.length)).split(':');
if (userpass[0] === authdata.username && userpass[1] === authdata.password) {
validAuth = true;
}
}
}
if (!validAuth) {
this.error("", 401);
return;
}
}
if (!filefound) {
this.error('', 404);
return;
}
if (!data.key) {
this.htaccessError('Missing Key');
return;
}
file = this.fs.getByPath(WSC.utils.stripOffFile(this.request.origpath)+data.original_request_path);
if (!file || file.error || !file.isFile) {
this.error('', 404);
return;
}
const contents = file.text();
let validFile = false;
let key = contents.replace(/ /g, '').split('postKey=');
if (key.length > 1) {
key = key.pop();
key = key.substring(1, key.length).split('"')[0].split("'")[0];
if (key === data.key) {
validFile = true;
}
}
if (!validFile) {
consle.error('Post key missing!', htaccessPath + this.htaccessName);
this.error('Script auth error', 403);
return;
}
const req = this.request;
const res = this;
const clearModuleCache = function() {
for (let i=0; i<global.cachedFiles.length; i++) {
delete require.cache[require.resolve(global.cachedFiles[i])];
}
global.cachedFiles = [];
}
const requireFile = function(path) {
path = res.fs.mainPath + WSC.utils.relativePath(WSC.utils.stripOffFile(res.request.origpath), path);
if (!global.cachedFiles.includes(path)) {
global.cachedFiles.push(path);
}
return require(path);
}
if (!global.tempData) {
global.tempData = {};
}
try {
eval('(function() {const handler = function(req, res, httpRequest, appInfo, clearModuleCache, requireFile) {\n' + contents + '\n};handler(req, res, WSC.httpRequest, {"server": "Simple Web Server"}, clearModuleCache, requireFile)})();');
} catch(e) {
console.error(e);
this.error('Check logs', 500);
this.finish();
}
}
get() {
this.setHeader('accept-ranges', 'bytes');
this.setHeader('connection', 'keep-alive');
if (!this.fs) {
this.error("Directory Not Chosen", 500);
return;
}
this.request.isVersioning = false;
if (typeof this.opts.cacheControl === 'string' && this.opts.cacheControl.trim() !== '') {
this.setHeader('cache-control', this.opts.cacheControl);
}
if (this.opts.excludeDotHtml && !this.request.origpath.endsWith("/") && this.request.path !== '') {
const extension = this.request.path.split('.').pop();
const more = this.request.uri.substring(0, this.request.path.origpath);
if (['htm', 'html'].includes(extension)) {
const path = this.request.path;
let newpath;
if (extension === 'html') {
newpath = path.substring(0, path.length - 5);
} else {
newpath = path.substring(0, path.length - 4);
}
newpath = newpath+more;
this.responseLength = 0;
this.setHeader('location', newpath);
this.writeHeaders(307);
this.finish();
return;
}
}
if (this.rewrite_to) {
this.fs.getByPath(this.rewrite_to, this.onEntry.bind(this));
} else {
this.fs.getByPath(this.request.path, this.onEntry.bind(this));
}
}
onEntryMain() {
if (this.opts.excludeDotHtml && this.request.path !== '' && ! this.request.origpath.endsWith("/")) {
let file = this.fs.getByPath(this.request.origpath+'.html');
if (!file.error && file.isFile) {
this.setHeader('content-type','text/html; charset=utf-8');
this.renderFileContents(file);
return;
}
file = this.fs.getByPath(this.request.origpath+'.htm');
if (!file.error && file.isFile) {
this.setHeader('content-type','text/html; charset=utf-8');
this.renderFileContents(file);
return;
}
}
if (this.entry && this.entry.isFile && this.request.origpath.endsWith('/') && this.request.path !== '') {
this.setHeader('location', this.request.path);
this.writeHeaders(301);
this.finish();
return;
}
if (this.entry && this.entry.isDirectory && ! this.request.origpath.endsWith('/')) {
const newloc = this.request.origpath + '/';
this.setHeader('location', newloc);
this.responseLength = 0;
this.writeHeaders(301);
this.finish();
return;
}
if (!this.entry) {
this.error('No Entry',404);
} else if (this.entry.error) {
if (this.entry.error.code === 'EPERM') {
this.error('', 403);
} else {
this.error('Entry Not Found: ' + (this.rewrite_to || this.request.path).htmlEscape(), 404);
}
} else if (this.entry.isFile) {
this.renderFileContents(this.entry);
} else {
const results = this.entry.getDirContents();
if (results.error) {
this.error('', ((results.error.code === 'EPERM')?403:500));
return;
}
if (this.opts.showIndex) {
for (let i=0; i<results.length; i++) {
if (['index.xhtml', 'index.xhtm'].includes(results[i].name.toLowerCase())) {
this.setHeader('content-type','application/xhtml+xml; charset=utf-8');
this.renderFileContents(results[i]);
return;
} else if (['index.htm', 'index.html'].includes(results[i].name.toLowerCase())) {
this.setHeader('content-type','text/html; charset=utf-8');
this.renderFileContents(results[i]);
return;
}
}
}
if (!this.opts.directoryListing) {
this.error("", 404);
} else {
this.renderDirListing(results);
}
}
}
onEntry(entry) {
this.entry = entry;
if (!this.opts.htaccess) {
this.onEntryMain();
return;
}
this.htaccessInit();
}
handleHtaccessRequest(data) {
switch (data.type) {
case 301:
case 302:
case 307:
WSC.htaccess.redirect.bind(this)(data);
break;
case 403:
WSC.htaccess.notAllowed.bind(this)();
break;
case 'denyDirectAccess':
WSC.htaccess.denyDirectAccess.bind(this)(data);
break;
case 'directory listing':
WSC.htaccess.directoryListing.bind(this)();
break;
case 'send directory contents':
WSC.htaccess.sendDirectoryContents.bind(this)(data);
break;
case 'versioning':
WSC.htaccess.versioning.bind(this)(data);
break;
case 'serverSideJavaScript':
WSC.htaccess.serverSideJavaScript.bind(this)(data);
break;
default:
this.onEntryMain();
break;
}
}
htaccessMain(filerequested) {
const finalpath = WSC.utils.stripOffFile(this.request.origpath);
const file = this.fs.getByPath(finalpath+this.htaccessName);
if (file.error || !file.isFile) {
this.onEntryMain();
return;
}
const dataa = file.text();
let origdata;
try {
origdata = JSON.parse(dataa);
if (!Array.isArray(origdata)) {
throw new Error('Not An Array');
}
} catch(e) {
console.error('Config Error', finalpath+this.htaccessName, e);
this.error('', 500);
this.finish();
return;
}
let filefound = false;
let auth;
let authdata;
let data = false;
let htaccessHeaders = [];
let additionalHeaders = false;
let hasPost = false;
if (origdata.length === 0 || !origdata.length) {
this.onEntryMain();
return;
}
for (let i=0; i<origdata.length; i++) {
if (!origdata[i].type) {
this.htaccessError('Missing Type');
return;
}
if (!origdata[i].request_path && origdata[i].type !== 'directory listing') {
this.htaccessError('Missing Request Path');
return;
}
origdata[i].original_request_path = origdata[i].request_path;
origdata[i].filerequested = filerequested;
origdata[i].request_path = WSC.utils.htaccessFileRequested(origdata[i].request_path, this.opts.showIndex);
if (origdata[i].type === 401 && !auth && [filerequested, 'all files'].includes(origdata[i].request_path) && !this.request.isVersioning) {
auth = true;
authdata = origdata[i];
}
if (origdata[i].type === 'directory listing' &&
this.request.origpath.split('/').pop() === '' &&
!filefound) {
data = origdata[i];
filefound = true;
}
if (origdata[i].type === 'send directory contents' && origdata[i].request_path === filerequested) {
const extension = origdata[i].original_request_path.split('.').pop();
if (['htm', 'html'].includes(extension)) {
data = origdata[i];
filefound = true;
}
}
if (origdata[i].type === 'serverSideJavaScript' && !filefound) {
if (this.request.origpath.split('/').pop() === origdata[i].original_request_path ||
(['html', 'htm'].includes(origdata[i].original_request_path.split('.').pop()) &&
origdata[i].original_request_path.split('/').pop().split('.')[0] === this.request.origpath.split('/').pop() &&
this.opts.excludeDotHtml) ||
(origdata[i].original_request_path.split('/').pop() === 'index.html' &&
this.request.origpath.endsWith('/') &&
this.opts.showIndex)) {
data = origdata[i];
filefound = true;
}
}
if ([filerequested, 'all files'].includes(origdata[i].request_path) && origdata[i].type === 'versioning' && !filefound && !this.request.isVersioning) {
data = origdata[i];
filefound = true;
}
if ([filerequested, 'all files'].includes(origdata[i].request_path) &&
!filefound &&
!['allow delete', 'allow put', 'deny delete', 'deny put', 401, 'directory listing', 'additional header', 'send directory contents', 'POSTkey', 'serverSideJavaScript', 'versioning'].includes(origdata[i].type)) {
data = origdata[i];
filefound = true;
}
if (this.request.origpath.split('/').pop() === origdata[i].original_request_path && origdata[i].type === 'POSTkey') {
hasPost = true;
}
//console.log(origdata[i].request_path === filerequested);
if ([filerequested, 'all files'].includes(origdata[i].request_path) && origdata[i].type === 'additional header') {
additionalHeaders = true;
htaccessHeaders.push(origdata[i]);
}
}
//console.log(data);
//console.log(authdata);
//console.log(filefound);
if (hasPost && data.type !== 'serverSideJavaScript') {
this.error('', 400);
return;
}
//console.log(htaccessHeaders)
if (additionalHeaders) {
for (let i=0; i<htaccessHeaders.length; i++) {
this.setHeader(htaccessHeaders[i].headerType, htaccessHeaders[i].headerValue);
}
}
if (!auth || authdata.type !== 401) {
this.handleHtaccessRequest(data);
return;
}
if (auth) {
if (!authdata.username || !authdata.password) {
this.htaccessError('Missing Auth Username and/or Password');
return;
}
let validAuth = false;
const authHeader = this.request.headers['authorization'];
if (authHeader) {
if (authHeader.slice(0,6).toLowerCase() === 'basic ') {
const userpass = atob(authHeader.slice(6, authHeader.length)).split(':');
if (userpass[0] === authdata.username && userpass[1] === authdata.password) {
validAuth = true;
}
}
}
if (!validAuth) {
this.error("", 401);
return;
}
}
if (!filefound) {
this.onEntryMain();
return;
}
this.handleHtaccessRequest(data);
}
htaccessInit() {
if (this.opts.excludeDotHtml) {
let file = this.fs.getByPath(this.request.origpath+'.html');
if (!file.error) {
if (this.request.origpath.endsWith("/")) {
this.htaccessMain('');
return;
}
const filerequested = WSC.utils.htaccessFileRequested((this.request.path+'.html').split('/').pop(), this.opts.showIndex);
this.htaccessMain(filerequested);
return;
}
file = this.fs.getByPath(this.request.origpath+'.htm');
if (! file.error) {
if (this.request.origpath.endsWith("/")) {
this.htaccessMain('');
return;
}
const filerequested = WSC.utils.htaccessFileRequested((this.request.path+'.htm').split('/').pop(), this.opts.showIndex);
this.htaccessMain(filerequested);
return;
}
}
if (this.entry && this.entry.isDirectory && ! this.request.origpath.endsWith('/')) {
const newloc = this.request.origpath + '/';
this.setHeader('location', newloc);
this.responseLength = 0;
this.writeHeaders(301);
this.finish();
return;
}
const filerequested = WSC.utils.htaccessFileRequested(this.request.origpath.split('/').pop(), this.opts.showIndex);
this.htaccessMain(filerequested);
}
renderFileContents(entry) {
if (!entry.path) {
this.error('', 404);
return;
}
if (entry.hidden && !this.opts.hiddenDotFiles) {
this.error('', 404);
return;
}
global.ConnetionS[this.request.ip]--;
if (this.request.method === 'HEAD') {
this.responseLength = entry.size;
this.writeHeaders(200);
this.finish();
} else {
if (entry.size === 0) {
this.responseLength = entry.size;
this.writeHeaders(200);
this.write('');
this.finish();
return;
}
let fileOffset, fileEndOffset, code;
if (this.request.headers['range']) {
//console.log('range request')
const range = this.request.headers['range'].split('=')[1].trim();
const rparts = range.split('-');
fileOffset = parseInt(rparts[0]);
if (! rparts[1]) {
fileEndOffset = entry.size - 1;
this.responseLength = entry.size-fileOffset;
this.setHeader('content-range','bytes '+fileOffset+'-'+(entry.size-1)+'/'+entry.size);
code = (fileOffset === 0) ? 200 : 206;
} else {
fileEndOffset = parseInt(rparts[1])
this.responseLength = fileEndOffset - fileOffset + 1;
this.setHeader('content-range','bytes '+fileOffset+'-'+(fileEndOffset)+'/'+entry.size);
code = 206;
}
} else {
fileOffset = 0;
fileEndOffset = entry.size - 1;
this.responseLength = entry.size;
code = 200;
}
let compression = false;
const stream = this.fs.createReadStream(entry.fullPath, {start: fileOffset,end: fileEndOffset});
if (this.request.headers['accept-encoding'] && this.opts.compression) {
const ac = this.request.headers['accept-encoding'];
if (ac.includes('br') || ac.includes('gzip') || ac.includes('deflate')) {
compression = true;
let compresionStream;
if (ac.includes('gzip')) {
this.setHeader('Content-Encoding', 'gzip');
compresionStream = zlib.createGzip();
} else if (ac.includes('br')) {
this.setHeader('Content-Encoding', 'br');
compresionStream = zlib.createBrotliCompress();
} else if (ac.includes('deflate')) {
this.setHeader('Content-Encoding', 'deflate');
compresionStream = zlib.createDeflate();
}
pipeline(stream, compresionStream, this.res, (err) => {
if (err) {
console.warn('Compression Error:', err);
this.res.end();
} else {
//Success
stream.close();
compresionStream.close();
}
});
}
}
this.writeHeaders(code);
if (!compression) {
const res = this.res;
stream.on('open', () => {
stream.pipe(res).on('error', (error) => {
console.error(error);
stream.close();
})
})
stream.on('error', (error) => {
console.error(error);
stream.close();
})
res.on("close", () => {
stream.close();
})
}
}
}
entriesSortFunc(a, b) {
const anl = a.name.toLowerCase();
const bnl = b.name.toLowerCase();
if (a.isDirectory && b.isDirectory) {
return anl.localeCompare(bnl);
} else if (a.isDirectory) {
return -1;
} else if (b.isDirectory) {
return 1;
} else {
// both files
return anl.localeCompare(bnl);
}
}
renderDirectoryListingJSON(origResults) {
this.setHeader('content-type','application/json; charset=utf-8');
let results = [];
for (let i=0; i<origResults.length; i++) {
if (! origResults[i].hidden || (this.opts.hiddenDotFiles && this.opts.hiddenDotFilesDirectoryListing)) {
results.push(origResults[i]);
}
}
this.write(JSON.stringify(results.map(function(f) {
return {
name: f.name,
fullPath: f.fullPath,
isFile: f.isFile,
isDirectory: f.isDirectory
}
}), null, 2));
}
renderDirectoryListing(results) {
let html = ['<html>'];
html.push('<style>li.directory {background:#aab}</style>');
html.push('<a href="../?static=1">parent</a>');
html.push('<ul>');
results.sort(this.entriesSortFunc);
for (let i=0; i<results.length; i++) {
if (results[i].hidden && !(this.opts.hiddenDotFiles && this.opts.hiddenDotFilesDirectoryListing)) continue;
const name = results[i].name.htmlEscape();
if (results[i].isDirectory) {
html.push('<li class="directory"><a href="' + name + '/?static=1">' + name + '</a></li>');
} else {
html.push('<li><a href="' + name + '?static=1">' + name + '</a></li>');
}
}
html.push('</ul></html>');
this.setHeader('content-type','text/html; charset=utf-8');
this.write(html.join('\n'));
}
renderDirectoryListingStaticJs(results) {
if (! WSC.static_template_data) {
return this.renderDirectoryListing(results);
}
let html = ['<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="google" value="notranslate"><title id="title"></title></head>'];
html.push('<noscript><style>li.directory {background:#aab}</style><a href="../?static=1">parent</a><ul>');
results.sort(this.entriesSortFunc);
for (let i=0; i<results.length; i++) {
if (results[i].hidden && !(this.opts.hiddenDotFiles && this.opts.hiddenDotFilesDirectoryListing)) continue;
const name = results[i].name.htmlEscape();
if (results[i].isDirectory) {
html.push('<li class="directory"><a href="' + name + '/?static=1">' + name + '</a></li>');
} else {
html.push('<li><a href="' + name + '?static=1">' + name + '</a></li>');
}
}
html.push('</ul></noscript>');
html.push('<div style="display:none;" id="javascriptDirectoryListing">');
html.push(WSC.static_template_data);
html.push('<script>start("'+this.request.origpath+'")</script>');
if (this.request.origpath !== '/') {
html.push('<script>onHasParentDirectory();</script>');
}
for (let i=0; i<results.length; i++) {
if (! results[i].hidden || (this.opts.hiddenDotFiles && this.opts.hiddenDotFilesDirectoryListing)) {
const rawname = results[i].name.replaceAll('\\', '\\\\').replaceAll('"', '\\"');
const name = encodeURIComponent(results[i].name).replaceAll('\\', '\\\\').replaceAll('"', '\\"');
const isdirectory = results[i].isDirectory;
const modified = WSC.utils.lastModified(results[i].modificationTime);
const filesize = results[i].size;
const filesizestr = WSC.utils.humanFileSize(results[i].size);
const modifiedstr = WSC.utils.lastModifiedStr(results[i].modificationTime);
html.push('<script>addRow("'+rawname+'","'+name+'",'+isdirectory+',"'+filesize+'","'+filesizestr+'","'+modified+'","'+modifiedstr+'");</script>');
}
}
html.push('</div>');
html.push('<script>document.getElementById("javascriptDirectoryListing").style = "display:block;"</script>');
html.push('</body></html>');
this.setHeader('content-type','text/html; charset=utf-8');
this.write(html.join('\n'));
this.finish();
}
renderDirectoryListingTemplate(results) {