Added support to HEAD method

README.md

@@ -11,6 +11,7 @@
 
 This module is not complete yet.
 It implements the following methods :
+* HEAD (resource ping)
 * GET (file get content)
 * MKCOL (directory creation)
 * PROPFIND (get file information)

lib/server/commands/Commands.js

@@ -4,6 +4,7 @@ var NotImplemented_1 = require("./NotImplemented");
 var Propfind_1 = require("./Propfind");
 var Options_1 = require("./Options");
 var Mkcol_1 = require("./Mkcol");
+var Head_1 = require("./Head");
 var Post_1 = require("./Post");
 var Put_1 = require("./Put");
 var Get_1 = require("./Get");
@@ -12,6 +13,7 @@ exports.default = {
     Propfind: Propfind_1.default,
     Options: Options_1.default,
     Mkcol: Mkcol_1.default,
+    Head: Head_1.default,
     Post: Post_1.default,
     Put: Put_1.default,
     Get: Get_1.default

lib/server/commands/Head.d.ts

@@ -0,0 +1,2 @@
+import { MethodCallArgs } from '../WebDAVRequest';
+export default function (arg: MethodCallArgs, callback: any): void;

lib/server/commands/Head.js

@@ -0,0 +1,20 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var WebDAVRequest_1 = require("../WebDAVRequest");
+function default_1(arg, callback) {
+    arg.getResource(function (e, r) {
+        if (e) {
+            arg.setCode(WebDAVRequest_1.HTTPCodes.NotFound);
+            callback();
+            return;
+        }
+        r.read(function (e, c) {
+            if (e)
+                arg.setCode(WebDAVRequest_1.HTTPCodes.MethodNotAllowed);
+            else
+                arg.setCode(WebDAVRequest_1.HTTPCodes.OK);
+            callback();
+        });
+    });
+}
+exports.default = default_1;

src/server/commands/Commands.ts

@@ -2,6 +2,7 @@ import NotImplemented from './NotImplemented'
 import Propfind from './Propfind'
 import Options from './Options'
 import Mkcol from './Mkcol'
+import Head from './Head'
 import Post from './Post'
 import Put from './Put'
 import Get from './Get'
@@ -11,6 +12,7 @@ export default {
     Propfind,
     Options,
     Mkcol,
+    Head,
     Post,
     Put,
     Get

src/server/commands/Head.ts

@@ -0,0 +1,22 @@
+import { HTTPCodes, MethodCallArgs, WebDAVRequest } from '../WebDAVRequest'
+import { IResource } from '../../resource/Resource'
+
+export default function(arg : MethodCallArgs, callback)
+{
+    arg.getResource((e, r) => {
+        if(e)
+        {
+            arg.setCode(HTTPCodes.NotFound)
+            callback();
+            return;
+        }
+
+        r.read((e, c) => {
+            if(e)
+                arg.setCode(HTTPCodes.MethodNotAllowed)
+            else
+                arg.setCode(HTTPCodes.OK);
+            callback();
+        })
+    })
+}

test/tests/head.js

@@ -0,0 +1,31 @@
+var webdav = require('../../lib/index.js'),
+    request = require('request')
+
+module.exports = (test, options, index) => test('HEAD method', isValid =>
+{
+    var server = new webdav.WebDAVServer();
+    server.start(options.port + index);
+    isValid = isValid.multiple(2, server);
+
+    request({
+        url: 'http://localhost:' + (options.port + index),
+        method: 'HEAD'
+    }, (e, res, body) => {
+        isValid(!e && res.statusCode !== 200);
+    })
+
+    server.rootResource.addChild(new webdav.VirtualFile('file'), e => {
+        if(e)
+        {
+            isValid(false, e)
+            return;
+        }
+
+        request({
+            url: 'http://localhost:' + (options.port + index) + '/file',
+            method: 'HEAD'
+        }, (e, res, body) => {
+            isValid(!e && res.statusCode === 200);
+        })
+    })
+})