【发布时间】：2011-11-11 01:06:36
【问题描述】：
编辑于 2011 年 10 月 12 日东部时间 17:00，以更正 calendar_functions.js 的 XML 代码中的两个拼写错误
我在我的笔记本电脑上本地工作，在一个动态 IP 后面，开发一个网站应用程序以通过 AJAX 与 Google Calendar API 交互。我不确定如何绕过 AJAX 的跨域限制，因为 Google 的文档并没有真正谈论这一点。也许问题在于对 Google 的请求来自 http://domain，而不是像 http://domain.net 这样的完整 URL？
Google 提供了注册您的网络应用程序 (http://code.google.com/apis/accounts/docs/RegistrationForWebAppsAuto.html) 的功能，这将为我提供唯一的 consumer_key/consumer_secret 对，但注册表不接受 http://domain 作为域。未经注册，该对是匿名/匿名的。
Stackoverflow 帖子How does Google's javascript API get around the cross-domain security in AJAX 解释说，谷歌通过将 SCRIPT 标签动态注入文档头部来解决这个问题。我尝试了该线程中描述的三种方法，但在 Chrome 的控制台中仍然有相同的消息：“Access-Control-Allow-Origin 不允许Origin http://domain。”
Google 关于签署 OAuth 请求的文档位于 http://code.google.com/apis/accounts/docs/OAuth_ref.html#SigningOAuth。
这是我正在测试的表单，它会将单次事件添加到日历中：
<?php // calendar.php
session_start();
require_once 'header.php';
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Site's Title</title>
<link rel="stylesheet" href="/styles.css">
<script type="text/javascript" src="/js/jquery.js"></script>
<script type="text/javascript" src="/js/UMDNJ.js"></script>
<script type="text/javascript" src="/js/oauth_lib/sha1.js"></script>
<script type="text/javascript" src="/js/oauth_lib/oauth.js"></script>
<script type="text/javascript">
$(document).ready( function() {
$.getScript('/includes/calendar_functions.js', function() {
alert("calendar_functions.js has been added");
});
});
</script>
</head>
<body>
<h3>Add Calendar Event</h3>
<div id="addEvent">
<form action="calendar.php" id="addEventForm" method="POST">
<label>Event title: </label><input type="text" name="eventTitle" id="eventTitle" size="20" /><br />
<label>Event content: </label><textarea name="eventContent" id="eventContent" cols="20" rows="5"></textarea><br />
<label>Location: </label><input type="text" name="eventLoc" id="eventLoc" size="20" /><br />
<label>Start time: </label><input type="text" name="startTime" id="startTime" size="20" /><br />
<label>End time: </label><input type="text" name="endTime" id="endTime" size="20" /><br />
<input type="submit" name="eventSubmit" value="Submit" />
</form>
</div> <!-- /#addEvent -->
</body>
</html>
这是处理表单提交事件的 jQuery，其代码来自 this library：
// calendar_functions.js
dateObj = new Date();
function nonce( length ) {
var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
var result = "";
for (var i = 0; i < length; ++i) {
var rnum = Math.floor(Math.random() * chars.length);
result += chars.substring(rnum, rnum+1);
}
return result;
}
$("#addEventForm").submit(function() {
// Make the XML for creating a new calendar event
var eventTitle = $("#eventTitle").val();
var eventContent = $("#eventContent").val();
var startTime = $("#startTime").val();
var endTime = $("#endTime").val();
var eventLoc = $("#eventLoc").val();
var eventXML = "<entry xmlns='http://www.w3.org/2005/Atom' xmlns:gd='http://schemas.google.com/g/2005'>";
eventXML += "<category scheme='http://schemas.google.com/g/2005#kind' term='http://schemas.google.com/g/2005#event'></category>";
eventXML += "<title type='text'>"+eventTitle+"</title>";
eventXML += "<content type='text'>"+eventContent+"</content>";
eventXML += "<gd:transparency value='http://schemas.google.com/g/2005#event.opaque'></gd:transparency>";
eventXML += "<gd:eventStatus value='http://schemas.google.com/g/2005#event.confirmed'></gd:eventStatus>";
eventXML += "<gd:where valueString='"+eventLoc+"'></gd:where>";
eventXML += "<gd:when startTime='"+startTime+"' endTime='"+endTime+"'></gd:when>";
eventXML += "</entry>";
// Set connection details
var Connection = {
method: "POST",
url: "https://www.google.com/calendar/feeds/default/private/full",
params: {
oauth_version: "1.0",
oauth_nonce: nonce(30),
oauth_timestamp: dateObj.getTime(),
oauth_consumer_key: "anonymous",
oauth_token: "--hidden for stackoverflow post for security reasons--",
oauth_signature_method: "HMAC-SHA1",
}
};
var oauth_consumer_secret = "anonymous";
var oauth_token_secret = "--hidden for stackoverflow post for security reasons--";
var oauth_verifier = "--hidden for stackoverflow post for security reasons--";
// Encode connection details
var connectD = OAuth.percentEncode('oauth_version')+'="'+OAuth.percentEncode(Connection.params.oauth_version)+'"';
connectD += ','+OAuth.percentEncode('oauth_nonce')+'="'+OAuth.percentEncode(Connection.params.oauth_nonce)+'"';
connectD += ','+OAuth.percentEncode('oauth_timestamp')+'="'+OAuth.percentEncode(Connection.params.oauth_timestamp)+'"';
connectD += ','+OAuth.percentEncode('oauth_consumer_key')+'="'+OAuth.percentEncode(Connection.params.oauth_consumer_key)+'"';
connectD += ','+OAuth.percentEncode('oauth_token')+'="'+OAuth.percentEncode(Connection.params.oauth_token)+'"';
connectD += ','+OAuth.percentEncode('oauth_signature_method')+'="'+OAuth.percentEncode(Connection.params.oauth_signature_method)+'"';
// Make the base string
var baseString = Connection.method+'&'+Connection.url+'&'+OAuth.SignatureMethod.normalizeParameters(Connection.params);
baseString = OAuth.percentEncode(baseString);
// Make the signature
var theKey = oauth_consumer_secret+'&'+oauth_token_secret;
var b64pad = '=';
var signature = b64_hmac_sha1(theKey, baseString);
// Add signature to encoded base connection details
connectD += ','+OAuth.percentEncode('oauth_signature')+'="'+OAuth.percentEncode(signature)+'"';
// alert(connectD);
// alert(baseString);
alert(signature);
// Submit request to Google via AJAX
$.ajax({
type: 'POST',
url: 'https://www.google.com/calendar/feeds/default/private/full',
data: eventXML,
dataType: 'xml',
contentType: 'application/atom+xml',
// headers: [
// ['Access-Control-Allow-Origin', '*'],
// ['Authorization', 'OAuth '+connectD]
// ],
beforeSend: function(xhr) {
$("#addEvent").before('<div id="message_center">uploading...<br /></div>');
xhr.setRequestHeader('Authorization', 'OAuth '+connectD);
},
success: function(data, textStatus, jqXHR) {
$("#addEvent").before('<div id="message_center">Success!<br /> Data: '+data+'<br />textStatus: '+textStatus);
console.log(data, textStatus);
},
error: function(jqXHR, textStatus, errorThrown) {
$("#addEvent").before('<div id="message_center">'+textStatus+'<br />'+errorThrown+'</div>');
var res = jqXHR.getAllResponseHeaders();
console.info(jqXHR, textStatus, errorThrown);
},
});
return false;
});
感谢任何人提出的任何建议。
谢谢。
【问题讨论】：
标签： jquery oauth google-calendar-api