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134 lines
3.6 KiB
134 lines
3.6 KiB
/*
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* Copyright 2013, Martin Zimmermann <info@posativ.org>. All rights reserved.
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* License: BSD Style, 2 clauses. See isso/__init__.py.
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*/
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define(["lib/q"], function(Q) {
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// http://stackoverflow.com/questions/17544965/unhandled-rejection-reasons-should-be-empty
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Q.stopUnhandledRejectionTracking();
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Q.longStackSupport = true;
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var endpoint = null,
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location = window.location.pathname;
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// guess Isso API location
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var js = document.getElementsByTagName("script");
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for (var i = 0; i < js.length; i++) {
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if (js[i].src.match("/js/require\\.js$")) {
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endpoint = js[i].src.substring(0, js[i].src.length - 14);
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break;
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} else if (js[i].src.match("/js/embed\\.min\\.js$")) {
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endpoint = js[i].src.substring(0, js[i].src.length - 16);
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break;
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}
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}
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if (endpoint == null) {
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throw "no Isso API location found";
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}
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var curl = function(method, url, data) {
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var xhr = new XMLHttpRequest();
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var response = Q.defer();
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if (! ("withCredentials" in xhr)) {
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respone.reject("I won't support IE ≤ 10.")
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return response.promise;
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}
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xhr.withCredentials = true;
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function onload() {
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response.resolve({status: xhr.status, body: xhr.responseText});
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}
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try {
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xhr.open(method, url, true);
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xhr.overrideMimeType("application/javascript");
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xhr.onreadystatechange = function () {
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if (xhr.readyState === 4) {
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onload();
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}
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};
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} catch (exception) {
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response.reject(exception.message);
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}
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xhr.send(data);
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return response.promise;
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};
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var qs = function(params) {
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rv = "";
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for (var key in params) {
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if (params.hasOwnProperty(key)) {
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rv += key + "=" + encodeURIComponent(params[key]) + "&";
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}
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}
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return rv.substring(0, rv.length - 1) // chop off trailing "&"
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}
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var create = function(data) {
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return curl("POST", endpoint + "/new?" + qs({uri: location}), JSON.stringify(data))
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.then(function (rv) {
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if (rv.status == 201 || rv.status == 202) {
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return JSON.parse(rv.body);
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} else {
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msg = rv.body.match("<p>(.+)</p>")
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throw {status: rv.status, reason: (msg && msg[1]) || rv.body}
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}
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})
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}
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var modify = function(data) {
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// ...
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}
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var remove = function(id) {
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return curl("DELETE", endpoint + "/id/" + id, null)
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.then(function(rv) {
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if (rv.status == 200) {
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return JSON.parse(rv.body) == null;
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} else {
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throw {status: rv.status, reason: rv.body}
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}
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})
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}
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var fetchall = function() {
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return curl("GET", endpoint + "/?" + qs({uri: location}), null)
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.then(function (rv) {
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if (rv.status == 200) {
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return JSON.parse(rv.body)
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} else {
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msg = rv.body.match("<p>(.+)</p>")
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throw {status: rv.status, reason: (msg && msg[1]) || rv.body}
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}
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})
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}
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var count = function(uri) {
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return curl("GET", endpoint + "/count?" + qs({uri: uri}), null)
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.then(function (rv) {
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if (rv.status == 200)
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return JSON.parse(rv.body)
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throw {status: rv.status, reason: rv.body};
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})
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}
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return {
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endpoint: endpoint,
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create: create,
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remove: remove,
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fetchall: fetchall,
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count: count
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}
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}); |