From 126c430fe6a3dec1deab709d3f6cc08b891f8df6 Mon Sep 17 00:00:00 2001
From: Patrizio Bekerle <patrizio.bekerle@tugraz.at>
Date: Tue, 6 Aug 2019 11:01:13 +0200
Subject: [PATCH] Implement support for reloading JSONLD after vpu-auth-init
event
---
packages/common/jsonld.js | 141 ++++++++++++++++++++------------------
1 file changed, 73 insertions(+), 68 deletions(-)
diff --git a/packages/common/jsonld.js b/packages/common/jsonld.js
index a259b570..ced7d320 100644
--- a/packages/common/jsonld.js
+++ b/packages/common/jsonld.js
@@ -45,79 +45,84 @@ export default class JSONLD {
initStarted[apiUrl] = true;
- // window.VPUAuthToken will be set by on vpu-auth-init
- window.addEventListener("vpu-auth-init", function(e)
- {
- const xhr = new XMLHttpRequest();
- xhr.open("GET", apiUrl, true);
- xhr.setRequestHeader('Authorization', 'Bearer ' + window.VPUAuthToken);
-
- xhr.onreadystatechange = function () {
- if (xhr.readyState === 4 && xhr.status === 200) {
- const json = JSON.parse(xhr.responseText);
-
- let entryPoints = {};
- for (let property in json) {
- // for some reason the properties start with a lower case character
- if (!property.startsWith("@")) entryPoints[property.toLowerCase()] = json[property];
- }
-
- // read the link header of the api response
-// const utils = require("./utils");
- const links = utils.parseLinkHeader(this.getResponseHeader("link"));
-
- // get the hydra apiDocumentation url
- const apiDocUrl = links["http://www.w3.org/ns/hydra/core#apiDocumentation"];
-
- if (apiDocUrl !== undefined) {
- // load the hydra apiDocumentation
- const docXhr = new XMLHttpRequest();
- docXhr.open("GET", apiDocUrl, true);
- docXhr.setRequestHeader("Content-Type", "application/json");
- docXhr.onreadystatechange = function () {
- if (docXhr.readyState === 4 && docXhr.status === 200) {
- const json = JSON.parse(docXhr.responseText);
- const supportedClasses = json["hydra:supportedClass"];
-
- let entities = {};
- const baseUrl = utils.parseBaseUrl(apiUrl);
-
- // gather the entities
- supportedClasses.forEach(function (classData) {
- // add entry point url
- const entityName = classData["hydra:title"];
- let entryPoint = entryPoints[entityName.toLowerCase()];
- if (entryPoint !== undefined && !entryPoint.startsWith("http")) entryPoint = baseUrl + entryPoint;
- classData["@entryPoint"] = entryPoint;
-
- entities[entityName] = classData;
- });
-
- const instance = new JSONLD(baseUrl, entities);
- instances[apiUrl] = instance;
-
- // return the initialized JSONLD object
- for (const fnc of successFunctions[apiUrl]) if (typeof fnc == 'function') fnc(instance);
- successFunctions[apiUrl] = [];
- } else {
- for (const fnc of failureFunctions[apiUrl]) if (typeof fnc == 'function') fnc();
- failureFunctions[apiUrl] = [];
- }
- };
-
- docXhr.send();
- } else {
- for (const fnc of failureFunctions[apiUrl]) if (typeof fnc == 'function') fnc();
- failureFunctions[apiUrl] = [];
- }
+ if (window.VPUAuthToken !== undefined) {
+ JSONLD.doInitialization(apiUrl);
+ } else {
+ // window.VPUAuthToken will be set by vpu-auth-init event
+ window.addEventListener("vpu-auth-init", () => JSONLD.doInitialization(apiUrl));
+ }
+ }
+
+ static doInitialization(apiUrl) {
+ const xhr = new XMLHttpRequest();
+ xhr.open("GET", apiUrl, true);
+ xhr.setRequestHeader('Authorization', 'Bearer ' + window.VPUAuthToken);
+
+ xhr.onreadystatechange = function () {
+ if (xhr.readyState === 4 && xhr.status === 200) {
+ const json = JSON.parse(xhr.responseText);
+
+ let entryPoints = {};
+ for (let property in json) {
+ // for some reason the properties start with a lower case character
+ if (!property.startsWith("@")) entryPoints[property.toLowerCase()] = json[property];
+ }
+
+ // read the link header of the api response
+// const utils = require("./utils");
+ const links = utils.parseLinkHeader(this.getResponseHeader("link"));
+
+ // get the hydra apiDocumentation url
+ const apiDocUrl = links["http://www.w3.org/ns/hydra/core#apiDocumentation"];
+
+ if (apiDocUrl !== undefined) {
+ // load the hydra apiDocumentation
+ const docXhr = new XMLHttpRequest();
+ docXhr.open("GET", apiDocUrl, true);
+ docXhr.setRequestHeader("Content-Type", "application/json");
+ docXhr.onreadystatechange = function () {
+ if (docXhr.readyState === 4 && docXhr.status === 200) {
+ const json = JSON.parse(docXhr.responseText);
+ const supportedClasses = json["hydra:supportedClass"];
+
+ let entities = {};
+ const baseUrl = utils.parseBaseUrl(apiUrl);
+
+ // gather the entities
+ supportedClasses.forEach(function (classData) {
+ // add entry point url
+ const entityName = classData["hydra:title"];
+ let entryPoint = entryPoints[entityName.toLowerCase()];
+ if (entryPoint !== undefined && !entryPoint.startsWith("http")) entryPoint = baseUrl + entryPoint;
+ classData["@entryPoint"] = entryPoint;
+
+ entities[entityName] = classData;
+ });
+
+ const instance = new JSONLD(baseUrl, entities);
+ instances[apiUrl] = instance;
+
+ // return the initialized JSONLD object
+ for (const fnc of successFunctions[apiUrl]) if (typeof fnc == 'function') fnc(instance);
+ successFunctions[apiUrl] = [];
+ } else {
+ for (const fnc of failureFunctions[apiUrl]) if (typeof fnc == 'function') fnc();
+ failureFunctions[apiUrl] = [];
+ }
+ };
+
+ docXhr.send();
} else {
for (const fnc of failureFunctions[apiUrl]) if (typeof fnc == 'function') fnc();
failureFunctions[apiUrl] = [];
}
- };
+ } else {
+ for (const fnc of failureFunctions[apiUrl]) if (typeof fnc == 'function') fnc();
+ failureFunctions[apiUrl] = [];
+ }
+ };
- xhr.send();
- });
+ xhr.send();
}
static getInstance(apiUrl) {
--
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