Added HTTP upload saver

Now we can save changes to TiddlySpot

core/modules/savers/download.js

@@ -42,15 +42,15 @@ DownloadSaver.prototype.info = {
 /*
 Static method that returns true if this saver is capable of working
 */
-exports.canSave = function() {
+exports.canSave = function(wiki) {
 	return true;
 };
 
 /*
 Create an instance of this saver
 */
-exports.create = function() {
-	return new DownloadSaver();
+exports.create = function(wiki) {
+	return new DownloadSaver(wiki);
 };
 
 })();

core/modules/savers/firefox.js

@@ -52,15 +52,15 @@ FirefoxSaver.prototype.info = {
 /*
 Static method that returns true if this saver is capable of working
 */
-exports.canSave = function() {
+exports.canSave = function(wiki) {
 	return window.location.protocol === "file:" && !!window.Components;
 };
 
 /*
 Create an instance of this saver
 */
-exports.create = function() {
-	return new FirefoxSaver();
+exports.create = function(wiki) {
+	return new FirefoxSaver(wiki);
 };
 
 })();

core/modules/savers/upload.js

@@ -0,0 +1,81 @@
+/*\
+title: $:/core/modules/savers/upload.js
+type: application/javascript
+module-type: saver
+
+Handles saving changes via upload to a server
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+/*
+Select the appropriate saver module and set it up
+*/
+var UploadSaver = function(wiki) {
+	this.wiki = wiki;
+};
+
+UploadSaver.prototype.save = function(text) {
+	// Get the various parameters we need
+	var backupDir = ".",
+		userName = this.wiki.getTextReference("$:/UploadName"),
+		password = $tw.utils.getPassword("upload"),
+		uploadDir = ".",
+		url = this.wiki.getTextReference("$:/UploadURL");
+	if(!url) {
+		url = "http://" + userName + ".tiddlyspot.com/store.cgi";
+	}
+	// Assemble the header
+	var boundary = "---------------------------" + "AaB03x";	
+	var uploadFormName = "UploadPlugin";
+	var head = [];
+	head.push("--" + boundary + "\r\nContent-disposition: form-data; name=\"UploadPlugin\"\r\n");
+	head.push("backupDir=" + backupDir + ";user=" + userName + ";password=" + password + ";uploaddir=" + uploadDir + ";;"); 
+	head.push("\r\n" + "--" + boundary);
+	head.push("Content-disposition: form-data; name=\"userfile\"; filename=\"index.html\"");
+	head.push("Content-Type: text/html;charset=UTF-8");
+	head.push("Content-Length: " + text.length + "\r\n");
+	head.push("");
+	// Assemble the tail and the data itself
+	var tail = "\r\n--" + boundary + "--\r\n",
+		data = head.join("\r\n") + text + tail;
+	// Do the HTTP post
+	var http = new XMLHttpRequest();
+	http.open("POST",url,true,userName,password);
+	http.setRequestHeader("Content-Type","multipart/form-data; ;charset=UTF-8; boundary=" + boundary);
+	http.onreadystatechange = function() {
+		if(http.readyState == 4 && http.status == 200) {
+			alert(http.responseText);
+		}
+	}
+	http.send(data);
+	return true;
+};
+
+/*
+Information about this saver
+*/
+UploadSaver.prototype.info = {
+	name: "upload",
+	priority: 500
+};
+
+/*
+Static method that returns true if this saver is capable of working
+*/
+exports.canSave = function(wiki) {
+	return wiki.tiddlerExists("$:/UploadName");
+};
+
+/*
+Create an instance of this saver
+*/
+exports.create = function(wiki) {
+	return new UploadSaver(wiki);
+};
+
+})();

core/modules/wiki.js

@@ -487,7 +487,7 @@ exports.initSavers = function(moduleType) {
 	this.savers = [];
 	for(var t=0; t<$tw.plugins.moduleTypes[moduleType].length; t++) {
 		var saver = $tw.plugins.moduleTypes[moduleType][t];
-		if(saver.canSave()) {
+		if(saver.canSave(this)) {
 			this.savers.push(saver.create(this));
 		}
 	}