Stackedit/public/res/helpers/tumblrHelper.js
2013-11-05 23:03:38 +00:00

184 lines
6.4 KiB
JavaScript

define([
"jquery",
"constants",
"core",
"utils",
"storage",
"logger",
"eventMgr",
"classes/AsyncTask"
], function($, constants, core, utils, storage, logger, eventMgr, AsyncTask) {
var oauthParams;
var tumblrHelper = {};
// Listen to offline status changes
var isOffline = false;
eventMgr.addListener("onOfflineChanged", function(isOfflineParam) {
isOffline = isOfflineParam;
});
// Only used to check the offline status
function connect(task) {
task.onRun(function() {
if(isOffline === true) {
task.error(new Error("Operation not available in offline mode.|stopPublish"));
return;
}
task.chain();
});
}
// Try to authenticate with OAuth
function authenticate(task) {
var authWindow;
var intervalId;
task.onRun(function() {
if(oauthParams !== undefined) {
task.chain();
return;
}
var serializedOauthParams = storage.tumblrOauthParams;
if(serializedOauthParams !== undefined) {
oauthParams = JSON.parse(serializedOauthParams);
task.chain();
return;
}
var errorMsg = "Failed to retrieve a token from Tumblr.";
// We add time for user to enter his credentials
task.timeout = constants.ASYNC_TASK_LONG_TIMEOUT;
var oauth_object;
function getOauthToken() {
$.getJSON(constants.TUMBLR_PROXY_URL + "request_token", function(data) {
if(data.oauth_token !== undefined) {
oauth_object = data;
task.chain(oauthRedirect);
}
else {
task.error(new Error(errorMsg));
}
});
}
function oauthRedirect() {
core.redirectConfirm('You are being redirected to <strong>Tumblr</strong> authorization page.', function() {
task.chain(getVerifier);
}, function() {
task.error(new Error('Operation canceled.'));
});
}
function getVerifier() {
storage.removeItem("tumblrVerifier");
authWindow = utils.popupWindow('html/tumblr-oauth-client.html?oauth_token=' + oauth_object.oauth_token, 'stackedit-tumblr-oauth', 800, 600);
authWindow.focus();
intervalId = setInterval(function() {
if(authWindow.closed === true) {
clearInterval(intervalId);
authWindow = undefined;
intervalId = undefined;
oauth_object.oauth_verifier = storage.tumblrVerifier;
if(oauth_object.oauth_verifier === undefined) {
task.error(new Error(errorMsg));
return;
}
storage.removeItem("tumblrVerifier");
task.chain(getAccessToken);
}
}, 500);
}
function getAccessToken() {
$.getJSON(constants.TUMBLR_PROXY_URL + "access_token", oauth_object, function(data) {
if(data.access_token !== undefined && data.access_token_secret !== undefined) {
storage.tumblrOauthParams = JSON.stringify(data);
oauthParams = data;
task.chain();
}
else {
task.error(new Error(errorMsg));
}
});
}
task.chain(getOauthToken);
});
task.onError(function() {
if(intervalId !== undefined) {
clearInterval(intervalId);
}
if(authWindow !== undefined) {
authWindow.close();
}
});
}
tumblrHelper.upload = function(blogHostname, postId, tags, format, title, content, callback) {
var task = new AsyncTask();
connect(task);
authenticate(task);
task.onRun(function() {
var data = $.extend({
blog_hostname: blogHostname,
post_id: postId,
tags: tags,
format: format,
title: title,
content: content
}, oauthParams);
$.ajax({
url: constants.TUMBLR_PROXY_URL + "post",
data: data,
type: "POST",
dataType: "json",
timeout: constants.AJAX_TIMEOUT
}).done(function(post) {
postId = post.id;
task.chain();
}).fail(function(jqXHR) {
var error = {
code: jqXHR.status,
message: jqXHR.statusText
};
// Handle error
if(error.code === 404 && postId !== undefined) {
error = 'Post ' + postId + ' not found on Tumblr.|removePublish';
}
handleError(error, task);
});
});
task.onSuccess(function() {
callback(undefined, postId);
});
task.onError(function(error) {
callback(error);
});
task.enqueue();
};
function handleError(error, task) {
var errorMsg;
if(error) {
logger.error(error);
// Try to analyze the error
if(typeof error === "string") {
errorMsg = error;
}
else {
errorMsg = "Could not publish on Tumblr.";
if(error.code === 401 || error.code === 403) {
oauthParams = undefined;
storage.removeItem("tumblrOauthParams");
errorMsg = "Access to Tumblr account is not authorized.";
task.retry(new Error(errorMsg), 1);
return;
}
else if(error.code <= 0) {
core.setOffline();
errorMsg = "|stopPublish";
}
}
}
task.error(new Error(errorMsg));
}
return tumblrHelper;
});