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TiddlyWiki5/plugins/tiddlywiki/pluginlibrary/libraryserver.js
Jermolene 8643278a45 Add support for an integrated plugin library
Fixes #1450

Provides support for an integrated plugin library that can be used to
install plugins from tiddlywiki.com directly to wikis hosted online or
offline. See the Plugins tab of Control Panel.

Todo:

* Error checking(eg libraryserver.js HTTP GET)
* Translatability
* Documentation
** $:/tags/ServerConnection
** savelibrarytiddlers command
2015-02-09 19:04:11 +00:00

91 lines
2.4 KiB
JavaScript

/*\
title: $:/plugins/tiddlywiki/pluginlibrary/libraryserver.js
type: application/javascript
module-type: library
A simple HTTP-over-window.postMessage implementation of a standard TiddlyWeb-compatible server. It uses real HTTP to load the individual tiddler JSON files.
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
// Listen for window messages
window.addEventListener("message",function listener(event){
console.log("plugin library: Received message from",event.origin);
console.log("plugin library: Message content",event.data);
switch(event.data.verb) {
case "GET":
if(event.data.url === "recipes/default/tiddlers.json") {
// Route for recipes/default/tiddlers.json
event.source.postMessage({
verb: "GET-RESPONSE",
status: "200",
cookies: event.data.cookies,
url: event.data.url,
type: "application/json",
body: JSON.stringify(assetList,null,4)
},"*");
} else if(event.data.url.indexOf("recipes/default/tiddlers/") === 0) {
var url = "recipes/default/tiddlers/" + encodeURIComponent(removePrefix(event.data.url,"recipes/default/tiddlers/"));
// Route for recipes/default/tiddlers/<uri-encoded-tiddler-title>.json
httpGet(url,function(err,responseText) {
if(err) {
event.source.postMessage({
verb: "GET-RESPONSE",
status: "404",
cookies: event.data.cookies,
url: event.data.url,
type: "text/plain",
body: "Not found"
},"*");
} else {
event.source.postMessage({
verb: "GET-RESPONSE",
status: "200",
cookies: event.data.cookies,
url: event.data.url,
type: "application/json",
body: responseText
},"*");
}
});
} else {
event.source.postMessage({
verb: "GET-RESPONSE",
status: "404",
cookies: event.data.cookies,
url: event.data.url,
type: "text/plain",
body: "Not found"
},"*");
}
break;
}
},false);
// Helper to remove string prefixes
function removePrefix(string,prefix) {
if(string.indexOf(prefix) === 0) {
return string.substr(prefix.length);
} else {
return string;
}
}
// Helper for HTTP GET
function httpGet(url,callback) {
var http = new XMLHttpRequest();
http.open("GET",url,true);
http.onreadystatechange = function() {
if(http.readyState == 4 && http.status == 200) {
callback(null,http.responseText);
}
};
http.send();
}
})();