mirror of
https://github.com/Jermolene/TiddlyWiki5
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74 lines
1.7 KiB
JavaScript
74 lines
1.7 KiB
JavaScript
/*\
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title: $:/core/modules/savers/put.js
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type: application/javascript
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module-type: saver
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Saves wiki by performing a PUT request to the server
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Works with any server which accepts a PUT request
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to the current URL, such as a WebDAV server.
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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/*
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Select the appropriate saver module and set it up
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*/
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var PutSaver = function(wiki) {
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this.wiki = wiki;
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};
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PutSaver.prototype.save = function(text,method,callback) {
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var req = new XMLHttpRequest();
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// TODO: store/check ETags if supported by server, to protect against overwrites
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// Prompt: Do you want to save over this? Y/N
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// Merging would be ideal, and may be possible using future generic merge flow
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req.addEventListener("load", function() {
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if (this.status === 200 || this.status === 201) {
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// success
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callback(null);
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}
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else {
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// fail
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callback(this.responseText);
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}
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});
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req.open("PUT", encodeURI(window.location.href));
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req.setRequestHeader("Content-Type", "text/html;charset=UTF-8");
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req.send(text);
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return true;
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};
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/*
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Information about this saver
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*/
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PutSaver.prototype.info = {
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name: "put",
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priority: 2000,
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capabilities: ["save", "autosave"]
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};
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/*
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Static method that returns true if this saver is capable of working
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*/
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exports.canSave = function(wiki) {
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// TODO This should probe for the DAV header
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// http://www.webdav.org/specs/rfc2518.html#rfc.section.9.1
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// but doing so would require canSave to resolve async. See
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// https://github.com/Jermolene/TiddlyWiki5/issues/2276
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return /^https?:/.test(location.protocol);
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};
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/*
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Create an instance of this saver
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*/
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exports.create = function(wiki) {
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return new PutSaver(wiki);
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};
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})();
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