mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-12-30 20:10:28 +00:00
81 lines
2.0 KiB
JavaScript
81 lines
2.0 KiB
JavaScript
/*\
|
|
title: $:/core/modules/savers/put.js
|
|
type: application/javascript
|
|
module-type: saver
|
|
|
|
Saves wiki by performing a PUT request to the server
|
|
|
|
Works with any server which accepts a PUT request
|
|
to the current URL, such as a WebDAV server.
|
|
|
|
\*/
|
|
(function(){
|
|
|
|
/*jslint node: true, browser: true */
|
|
/*global $tw: false */
|
|
"use strict";
|
|
|
|
/*
|
|
Select the appropriate saver module and set it up
|
|
*/
|
|
var PutSaver = function(wiki) {
|
|
this.wiki = wiki;
|
|
var self = this;
|
|
// Async server probe. Until probe finishes, save will fail fast
|
|
// See also https://github.com/Jermolene/TiddlyWiki5/issues/2276
|
|
var req = new XMLHttpRequest();
|
|
req.open("OPTIONS",encodeURI(document.location.protocol + "//" + document.location.hostname + ":" + document.location.port + document.location.pathname));
|
|
req.onload = function() {
|
|
// Check DAV header http://www.webdav.org/specs/rfc2518.html#rfc.section.9.1
|
|
self.serverAcceptsPuts = (this.status === 200 && !!this.getResponseHeader('dav'));
|
|
};
|
|
req.send();
|
|
};
|
|
|
|
PutSaver.prototype.save = function(text,method,callback) {
|
|
if (!this.serverAcceptsPuts) {
|
|
return false;
|
|
}
|
|
var req = new XMLHttpRequest();
|
|
// TODO: store/check ETags if supported by server, to protect against overwrites
|
|
// Prompt: Do you want to save over this? Y/N
|
|
// Merging would be ideal, and may be possible using future generic merge flow
|
|
req.onload = function() {
|
|
if (this.status === 200 || this.status === 201) {
|
|
callback(null); // success
|
|
}
|
|
else {
|
|
callback(this.responseText); // fail
|
|
}
|
|
};
|
|
req.open("PUT", encodeURI(window.location.href));
|
|
req.setRequestHeader("Content-Type", "text/html;charset=UTF-8");
|
|
req.send(text);
|
|
return true;
|
|
};
|
|
|
|
/*
|
|
Information about this saver
|
|
*/
|
|
PutSaver.prototype.info = {
|
|
name: "put",
|
|
priority: 2000,
|
|
capabilities: ["save", "autosave"]
|
|
};
|
|
|
|
/*
|
|
Static method that returns true if this saver is capable of working
|
|
*/
|
|
exports.canSave = function(wiki) {
|
|
return /^https?:/.test(location.protocol);
|
|
};
|
|
|
|
/*
|
|
Create an instance of this saver
|
|
*/
|
|
exports.create = function(wiki) {
|
|
return new PutSaver(wiki);
|
|
};
|
|
|
|
})();
|