我正在扩展Ember Simple Auth的基本身份验证类，以允许通过Google进行身份验证。到目前为止，它适用于Safari 8和Chrome 41（均在Yosemite上），没有任何错误。但是，在Firefox 35上，它会抛出在其他浏览器上不会出现的错误。这是我的Google身份验证器类：
App.GoogleAuthenticator = SimpleAuth.Authenticators.Base.extend({
// constants for Google API
GAPI_CLIENT_ID: 'the client id',
GAPI_SCOPE: ['email'],
GAPI_TOKEN_VERIFICATION_ENDPOINT: 'https://www.googleapis.com/oauth2/v2/tokeninfo',
// method for scheduleing a single token refresh
// time in milliseconds
scheduleSingleTokenRefresh: function(time) {
var self = this;
return new Ember.RSVP.Promise(function(resolve, reject) {
Ember.run.later(self, function() {
gapi.auth.authorize({
client_id: self.GAPI_CLIENT_ID,
scope: self.GAPI_SCOPE,
immediate: true
}, function(data) {
if (data && !data.error) {
resolve(data);
} else {
reject((data || {}).error);
}
});
}, time);
});
},
// WIP: recursive method that reschedules another token refresh after the previous scheduled one was fulfilled
// usage: scheduleTokenRefreshes(time until token should refresh for the first time, time between subsequent refreshes)
// usage: scheduleTokenRefreshes(time between refreshes)
scheduleTokenRefreshes: function(time1, time2) {
var self = this;
// if there is a time2, schedule a single refresh, wait for it to be fulfilled, then call myself to schedule again
if (!Ember.isEmpty(time2)) {
self.scheduleSingleTokenRefresh(time1)
.then(function() {
self.scheduleTokenRefreshes(time2);
});
// if there isn't a time2, simply schedule a single refresh, then call myself to schedule again
} else {
self.scheduleSingleTokenRefresh(time1)
.then(function() {
self.scheduleTokenRefreshes(time1);
});
}
},
// method that restores the session on reload
restore: function(data) {
var self = this;
return new Ember.RSVP.Promise(function(resolve, reject) {
console.log(data);
if (Ember.isEmpty(data.access_token)) {
reject();
return;
}
// schedule a refresh 15 minutes before it expires or immediately if it expires in < 15
var timeNow = Math.floor(Date.now() / 1000);
var expiresAt = +data.expires_at;
var timeDifference = expiresAt - timeNow;
var schedulingDelay = Math.floor(timeDifference - 15 * 60);
schedulingDelay = schedulingDelay < 0 ? 0 : schedulingDelay;
self.scheduleTokenRefreshes(schedulingDelay * 1000, 45 * 60);
resolve(data);
});
},
// method that authenticates
authenticate: function() {
var self = this;
return new Ember.RSVP.Promise(function(resolve, reject) {
gapi.auth.authorize({
client_id: self.GAPI_CLIENT_ID,
scope: self.GAPI_SCOPE
}, function(data) {
if (data && !data.error) {
// schedule a refresh in 45 minutes
var schedulingDelay = 45 * 60;
self.scheduleTokenRefreshes(schedulingDelay * 1000);
resolve(data);
} else {
reject((data || {}).error);
}
});
});
},
// method that logs the user out and revokes the token
invalidate: function(data) {
var self = this;
return new Ember.RSVP.Promise(function(resolve, reject) {
// send a GET request to revoke the token
Ember.$.ajax({
type: 'GET',
url: 'https://accounts.google.com/o/oauth2/revoke?token=' + self.get('session.access_token'),
contentType: 'application/json',
dataType: 'jsonp'
})
.done(function(successData) {
resolve(successData);
})
.fail(function(error) {
reject(error);
});
});
}
});
当在Google端成功登录后弹出窗口关闭时，Firefox的控制台上会出现此错误：
Error: Assertion Failed: Error: Permission denied to access property 'toJSON' ember.js:13749
"__exports__.default<.persist@http://127.0.0.1/~jonchan/test/bower_components/ember-simple-auth/simple-auth.js:1524:1
__exports__.default<.updateStore@http://127.0.0.1/~jonchan/test/bower_components/ember-simple-auth/simple-auth.js:1195:11
__exports__.default<.setup@http://127.0.0.1/~jonchan/test/bower_components/ember-simple-auth/simple-auth.js:1149:9
__exports__.default<.authenticate/</<@http://127.0.0.1/~jonchan/test/bower_components/ember-simple-auth/simple-auth.js:1066:13
tryCatch@http://127.0.0.1/~jonchan/test/bower_components/ember/ember.js:47982:16
invokeCallback@http://127.0.0.1/~jonchan/test/bower_components/ember/ember.js:47994:17
publish@http://127.0.0.1/~jonchan/test/bower_components/ember/ember.js:47965:11
@http://127.0.0.1/~jonchan/test/bower_components/ember/ember.js:29462:9
Queue.prototype.invoke@http://127.0.0.1/~jonchan/test/bower_components/ember/ember.js:848:11
Queue.prototype.flush@http://127.0.0.1/~jonchan/test/bower_components/ember/ember.js:913:13
DeferredActionQueues.prototype.flush@http://127.0.0.1/~jonchan/test/bower_components/ember/ember.js:718:13
Backburner.prototype.end@http://127.0.0.1/~jonchan/test/bower_components/ember/ember.js:143:11
createAutorun/backburner._autorun<@http://127.0.0.1/~jonchan/test/bower_components/ember/ember.js:546:9
" ember.js:29488
以下是版本信息：
DEBUG: Ember : 1.9.1
DEBUG: Ember Data : 1.0.0-beta.14.1
DEBUG: Handlebars : 2.0.0
DEBUG: jQuery : 2.1.3
DEBUG: Ember Simple Auth : 0.7.2
最令人困惑的是，这只出现在Firefox上。这是Ember Simple Auth还是Ember的错误？我该如何解决？
答案 0 :(得分：0)
我不知道只有Firefox发生了错误（我在Chrome 40中遇到了类似的错误），但是在使用Ember 1.9的ember-simple-auth 0.7.2中存在一个错误，禁止发送实际内容验证器中authenticate方法中的错误响应。
如果您在reject()的拒绝功能中返回authenticate，则不会引发其他错误。然而，这不会传播errorstatus或消息，因此我认为这是一个错误。
通过临时设置Ember.onerror=Ember.K，在github上提出了解决此问题的解决方法，因此不会传播其他错误，尽管它会传播原始authenticate拒绝并显示错误状态。
github repo中的问题只提到测试这个问题，但我在普通代码中遇到了这个问题。
请参阅：https://github.com/simplabs/ember-simple-auth/issues/407
答案 1 :(得分：0)
原来错误发生在resolve方法的authenticate部分。以下是修正它的原因：
App.GoogleAuthenticator = SimpleAuth.Authenticators.Base.extend({
authenticate: function() {
return new Ember.RSVP.Promise(function(resolve, reject) {
gapi.auth.authorize({
client_id: 'the client id',
scope: ['the scopes'],
}, function(data) {
if (data && !data.error) {
resolve({
access_token: data.access_token // !! passing the entire 'data' object caused the error somehow
});
} else {
reject((data || {}).error);
}
});
});
},
// ...
});
我仍然不太确定为什么会导致这个错误。也许Google API的回复（完整版）与Ember Simple Auth不兼容。