mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2025-10-31 07:32:59 +00:00
Marginally improve the elegance of the simple HTTP server
This commit is contained in:
Jeremy Ruston
@@ -12,151 +12,223 @@ Serve tiddlers over http
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/*global $tw: false */
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"use strict";
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if(!$tw.browser) {
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var util = require("util"),
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fs = require("fs"),
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url = require("url"),
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path = require("path"),
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http = require("http");
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}
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exports.info = {
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name: "server",
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synchronous: true
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};
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var Command = function(params,commander,callback) {
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this.params = params;
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this.commander = commander;
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this.callback = callback;
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/*
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A simple HTTP server with regexp-based routes
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*/
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function SimpleServer(options) {
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this.routes = options.routes || [];
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this.wiki = options.wiki;
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this.variables = options.variables || {};
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}
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SimpleServer.prototype.set = function(obj) {
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var self = this;
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$tw.utils.each(obj,function(value,name) {
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self.variables[name] = value;
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});
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};
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Command.prototype.execute = function() {
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var self = this,
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util = require("util"),
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fs = require("fs"),
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url = require("url"),
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path = require("path"),
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http = require("http"),
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port = this.params[0] || "8080",
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rootTiddler = this.params[1] || "$:/core/templates/tiddlywiki5.template.html",
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renderType = this.params[2] || "text/plain",
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serveType = this.params[3] || "text/html",
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prefix;
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SimpleServer.prototype.get = function(name) {
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return this.variables[name];
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};
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SimpleServer.prototype.addRoute = function(route) {
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this.routes.push(route);
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};
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SimpleServer.prototype.listen = function(port) {
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var self = this;
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http.createServer(function(request, response) {
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var requestPath = url.parse(request.url).pathname,
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text;
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// Compose the state object
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var state = {};
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state.wiki = self.wiki;
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state.server = self;
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state.urlInfo = url.parse(request.url);
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// Find the route that matches this path
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var route;
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for(var t=0; t<self.routes.length; t++) {
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var potentialRoute = self.routes[t],
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pathRegExp = potentialRoute.path,
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match = potentialRoute.path.exec(state.urlInfo.pathname);
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if(request.method === potentialRoute.method && match) {
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state.params = [];
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for(var p=1; p<match.length; p++) {
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state.params.push(match[p]);
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}
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route = potentialRoute;
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break;
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}
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}
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// Return a 404 if we didn't find a route
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if(!route) {
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response.writeHead(404);
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response.end();
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return;
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}
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// Dispatch the appropriate method
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switch(request.method) {
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case "GET": // Intentional fall-through
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case "DELETE":
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route.handler(request,response,state);
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break;
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case "PUT":
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var data = "";
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request.on("data",function(chunk) {
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data += chunk.toString();
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});
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request.on("end",function() {
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prefix = "/recipes/default/tiddlers/";
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if(requestPath.indexOf(prefix) === 0) {
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var title = decodeURIComponent(requestPath.substr(prefix.length)),
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fields = JSON.parse(data);
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// Use the title from the PUT URL if we don't have one
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if(!fields.title) {
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fields.title = title;
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}
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// Pull up any subfields in the `fields` object
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if(fields.fields) {
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$tw.utils.each(fields.fields,function(field,name) {
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fields[name] = field;
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});
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delete fields.fields;
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}
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// Remove any revision field
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if(fields["revision"]) {
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delete fields["revision"];
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}
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console.log("PUT tiddler",title,fields)
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self.commander.wiki.addTiddler(new $tw.Tiddler(JSON.parse(data),{title: title}));
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var changeCount = self.commander.wiki.getChangeCount(title).toString();
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response.writeHead(204, "OK",{
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Etag: "\"default/" + title + "/" + changeCount + ":\""
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});
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response.end();
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} else {
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response.writeHead(404);
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response.end();
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}
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state.data = data;
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route.handler(request,response,state);
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});
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break;
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case "DELETE":
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prefix = "/bags/default/tiddlers/";
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if(requestPath.indexOf(prefix) === 0) {
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var title = decodeURIComponent(requestPath.substr(prefix.length));
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}
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}).listen(port);
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};
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var Command = function(params,commander,callback) {
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this.params = params;
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this.commander = commander;
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this.callback = callback;
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// Set up server
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this.server = new SimpleServer({
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wiki: this.commander.wiki
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});
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// Add route handlers
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this.server.addRoute({
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method: "PUT",
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path: /^\/recipes\/default\/tiddlers\/(.+)$/,
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handler: function(request,response,state) {
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var title = decodeURIComponent(state.params[0]),
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fields = JSON.parse(state.data);
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// Pull up any subfields in the `fields` object
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if(fields.fields) {
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$tw.utils.each(fields.fields,function(field,name) {
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fields[name] = field;
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});
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delete fields.fields;
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}
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// Remove any revision field
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if(fields["revision"]) {
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delete fields["revision"];
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}
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console.log("PUT tiddler",title,fields)
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state.wiki.addTiddler(new $tw.Tiddler(fields,{title: title}));
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var changeCount = state.wiki.getChangeCount(title).toString();
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response.writeHead(204, "OK",{
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Etag: "\"default/" + title + "/" + changeCount + ":\""
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});
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response.end();
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}
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});
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this.server.addRoute({
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method: "DELETE",
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path: /^\/bags\/default\/tiddlers\/(.+)$/,
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handler: function(request,response,state) {
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var title = decodeURIComponent(state.params[0]);
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console.log("DELETE tiddler",title)
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self.commander.wiki.deleteTiddler(decodeURIComponent(title));
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response.writeHead(204, "OK");
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response.end();
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} else {
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response.writeHead(404);
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response.end();
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}
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break;
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case "GET":
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if(requestPath === "/") {
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response.writeHead(200, {"Content-Type": serveType});
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text = self.commander.wiki.renderTiddler(renderType,rootTiddler);
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response.end(text,"utf8");
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} else if(requestPath === "/status") {
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response.writeHead(200, {"Content-Type": "application/json"});
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text = JSON.stringify({
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username: "ANONYMOUS",
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space: {
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recipe: "default"
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},
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tiddlywiki_version: $tw.version
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});
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response.end(text,"utf8");
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} else if(requestPath === "/recipes/default/tiddlers.json") {
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response.writeHead(200, {"Content-Type": "application/json"});
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var tiddlers = [];
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$tw.wiki.forEachTiddler("title",function(title,tiddler) {
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var tiddlerFields = {};
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$tw.utils.each(tiddler.fields,function(field,name) {
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if(name !== "text") {
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tiddlerFields[name] = tiddler.getFieldString(name);
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}
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});
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tiddlerFields["revision"] = $tw.wiki.getChangeCount(title);
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tiddlers.push(tiddlerFields);
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});
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text = JSON.stringify(tiddlers);
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response.end(text,"utf8");
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} else {
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prefix = "/recipes/default/tiddlers/";
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if(requestPath.indexOf(prefix) === 0) {
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var title = decodeURIComponent(requestPath.substr(prefix.length)),
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tiddler = $tw.wiki.getTiddler(title),
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tiddlerFields = {},
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knownFields = [
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"bag", "created", "creator", "modified", "modifier", "permissions", "recipe", "revision", "tags", "text", "title", "type", "uri"
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];
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if(tiddler) {
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$tw.utils.each(tiddler.fields,function(field,name) {
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var value = tiddler.getFieldString(name)
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if(knownFields.indexOf(name) !== -1) {
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tiddlerFields[name] = value;
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} else {
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tiddlerFields.fields = tiddlerFields.fields || {};
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tiddlerFields.fields[name] = value;
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}
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});
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response.writeHead(200, {"Content-Type": "application/json"});
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response.end(JSON.stringify(tiddlerFields),"utf8");
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} else {
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response.writeHead(404);
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response.end();
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}
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} else {
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response.writeHead(404);
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response.end();
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state.wiki.deleteTiddler(title);
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response.writeHead(204, "OK");
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response.end();
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}
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});
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this.server.addRoute({
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method: "GET",
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path: /^\/$/,
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handler: function(request,response,state) {
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response.writeHead(200, {"Content-Type": state.server.get("serveType")});
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var text = state.wiki.renderTiddler(state.server.get("renderType"),state.server.get("rootTiddler"));
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response.end(text,"utf8");
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}
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});
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this.server.addRoute({
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method: "GET",
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path: /^\/status$/,
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handler: function(request,response,state) {
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response.writeHead(200, {"Content-Type": "application/json"});
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var text = JSON.stringify({
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username: "ANONYMOUS",
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space: {
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recipe: "default"
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},
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tiddlywiki_version: $tw.version
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});
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response.end(text,"utf8");
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}
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});
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this.server.addRoute({
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method: "GET",
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path: /^\/recipes\/default\/tiddlers.json$/,
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handler: function(request,response,state) {
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response.writeHead(200, {"Content-Type": "application/json"});
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var tiddlers = [];
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state.wiki.forEachTiddler("title",function(title,tiddler) {
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var tiddlerFields = {};
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$tw.utils.each(tiddler.fields,function(field,name) {
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if(name !== "text") {
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tiddlerFields[name] = tiddler.getFieldString(name);
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}
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}
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break;
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case "POST":
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});
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tiddlerFields["revision"] = $tw.wiki.getChangeCount(title);
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tiddlers.push(tiddlerFields);
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});
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var text = JSON.stringify(tiddlers);
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response.end(text,"utf8");
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}
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});
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this.server.addRoute({
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method: "GET",
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path: /^\/recipes\/default\/tiddlers\/(.+)$/,
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handler: function(request,response,state) {
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var title = decodeURIComponent(state.params[0]),
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tiddler = state.wiki.getTiddler(title),
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tiddlerFields = {},
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knownFields = [
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"bag", "created", "creator", "modified", "modifier", "permissions", "recipe", "revision", "tags", "text", "title", "type", "uri"
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];
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if(tiddler) {
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$tw.utils.each(tiddler.fields,function(field,name) {
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var value = tiddler.getFieldString(name)
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if(knownFields.indexOf(name) !== -1) {
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tiddlerFields[name] = value;
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} else {
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tiddlerFields.fields = tiddlerFields.fields || {};
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tiddlerFields.fields[name] = value;
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}
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});
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response.writeHead(200, {"Content-Type": "application/json"});
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response.end(JSON.stringify(tiddlerFields),"utf8");
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} else {
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response.writeHead(404);
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response.end();
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break;
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}
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}).listen(port);
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}
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});
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};
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Command.prototype.execute = function() {
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var port = this.params[0] || "8080",
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rootTiddler = this.params[1] || "$:/core/templates/tiddlywiki5.template.html",
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renderType = this.params[2] || "text/plain",
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serveType = this.params[3] || "text/html";
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this.server.set({
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rootTiddler: rootTiddler,
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renderType: renderType,
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serveType: serveType
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});
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this.server.listen(port);
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if(this.commander.verbose) {
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console.log("Serving on port " + port);
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}
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