Twilio iOS SDK 在拨出电话时因“400 Bad request”而失败答案

【问题标题】：Twilio iOS SDK fails with "400 Bad request" on outgoing callTwilio iOS SDK 在拨出电话时因“400 Bad request”而失败
【发布时间】：2017-02-25 14:18:42
【问题描述】：

获取here提供的示例源代码，转换为 Swift 3 并应用我生成的升级 Twilio 帐户的令牌。

在尝试拨打电话时，它会播放声音，但在尝试访问https://matrix.twilio.com/2012-02-09/AC ... 时会失败并显示HTTP/1.0 400 Bad request。

这是尝试拨打电话后的日志 -

2016-10-16 18:32:12.955056 MyApp[577:121739] [DEBUG TCDeviceInternal] Inside TCDeviceInternal initWithCapabilityToken, capabilityToken_: (null)
2016-10-16 18:32:12.961112 MyApp[577:121739] [VERBOSE TCDeviceInternal] Inside decodeCapabilityToken:, Header: {
    alg = HS256;
    typ = JWT;
}
2016-10-16 18:32:12.962305 MyApp[577:121739] [VERBOSE TCDeviceInternal] Inside decodeCapabilityToken:, payload: {
    exp = 1476635532;
    iss = ....REMOVED....................;
    scope = "scope:client:incoming?clientName=TestName scope:client:outgoing?appSid=AP.....REMOVED......&clientName=TestName";
}
2016-10-16 18:32:12.962611 MyApp[577:121739] [VERBOSE TCDeviceInternal] Scope URI: scope:client:incoming?clientName=TestName, inside setCapabilitiesWithCapabilityToken:
2016-10-16 18:32:12.962860 MyApp[577:121739] [VERBOSE TCDeviceInternal] Scope URI: scope:client:outgoing?appSid=AP.............REMOVED.......&clientName=TestName, inside setCapabilitiesWithCapabilityToken:
2016-10-16 18:32:12.963710 MyApp[577:121739] [DEBUG TCConstants] X-Twilio-Client string: {"p":"ios","v":"1.2.7.b99-1015b1f","mobile":{"arch":"unknown type 16777228 subtype 1","product":"iPhone","name":"iPhone8,4","v":"10.0.2"}}, inside TCConstants clientString
2016-10-16 18:32:13.035381 MyApp[577:121739] [VERBOSE Twilio] Inside initWithConfig:, codec: speex/16000/1 -> priority: 255
2016-10-16 18:32:13.035425 MyApp[577:121739] [VERBOSE Twilio] Inside initWithConfig:, codec: speex/8000/1 -> priority: 254
2016-10-16 18:32:13.035457 MyApp[577:121739] [VERBOSE Twilio] Inside initWithConfig:, codec: speex/32000/1 -> priority: 0
2016-10-16 18:32:13.035500 MyApp[577:121739] [VERBOSE Twilio] Inside initWithConfig:, codec: opus/48000/1 -> priority: 0
2016-10-16 18:32:13.035574 MyApp[577:121739] [VERBOSE Twilio] Inside initWithConfig:, codec: PCMU/8000/1 -> priority: 128
2016-10-16 18:32:13.035669 MyApp[577:121739] [VERBOSE Twilio] Inside initWithConfig:, codec: PCMA/8000/1 -> priority: 0
2016-10-16 18:32:13.035843 MyApp[577:121739] [DEBUG Twilio] Inside startStateNotificationsForObject, delegate: <TCDeviceInternal: 0x17018c710>
2016-10-16 18:32:13.036069 MyApp[577:121739] [VERBOSE Twilio] Inside addUserAccount:, Registration URL: sip:TestName@chunderm.gll.twilio.com;transport=tls
2016-10-16 18:32:13.037112 MyApp[577:121739] [DEBUG TwilioReachability] Reachability Flag Status: -R ------- networkStatusForFlags
2016-10-16 18:32:13.037191 MyApp[577:121739] [DEBUG TCDeviceInternal] Internet reachability: 1
2016-10-16 18:32:13.037434 MyApp[577:121739] [DEBUG TCDeviceInternal] Created TCDeviceInternal: <TCDeviceInternal: 0x17018c710> for accountId: 0
2016-10-16 18:32:13.038306 MyApp[577:121739] [DEBUG TCHttpJsonLongPollConnection] Inside TCHTTPJSONLongPollConnection run(), gonna connect to host matrix.twilio.com, port 443
2016-10-16 18:32:13.039266 MyApp[577:121739] [DEBUG TCHttpJsonLongPollConnection] Inside onSocketWillConnect, sock: <TCAsyncSocket 0x17418ddd0 local nowhere remote nowhere has queued 0 reads 0 writes, no current read, no current write, read stream 0x17010d260 not open, write stream 0x1701065d0 not open, not connected>, self: <TCHttpJsonLongPollConnection 0x1740aa9e0 url=https://matrix.twilio.com/2012-02-09/.........REMOVED............../TestName?AccessToken=...............REMOVED......................&feature=publishPresence&feature=presenceEvents connected=0 https=1>
2016-10-16 18:32:13.052355 MyApp[577:121739] [DEBUG TCSoundManager] TCSoundManager: sharedInstance: 0x0
2016-10-16 18:32:13.052423 MyApp[577:121739] [DEBUG TCSoundManager] TCSoundManager init, top
2016-10-16 18:32:13.052461 MyApp[577:121739] [VERBOSE TCSoundManager] TCSoundManager init, starting
2016-10-16 18:32:13.109491 MyApp[577:121739] [DEBUG TCSoundManager] TCSoundManager: player configured
2016-10-16 18:32:13.120029 MyApp[577:121739] [VERBOSE TCSoundManager] TCSoundManager init, done
2016-10-16 18:32:13.120917 MyApp[577:121739] [DEBUG TCSoundManager] TCSoundManager: attempting to play item, (inside TCSoundManager play())
2016-10-16 18:32:13.121720 MyApp[577:121739] [DEBUG TCSoundManager] Player status: 0, inside observeValueForKeyPath:
[2016-10-16 18:32:13.123] Caller.swift:55 DEBUG: Twilio connection created successfully
2016-10-16 18:32:13.136004 MyApp[577:121739] [DEBUG TCSoundManager] Player status: 1, inside observeValueForKeyPath:
2016-10-16 18:32:13.145341 MyApp[577:121739] [DEBUG TCSoundManager] Item status: 1, inside observeValueForKeyPath:
2016-10-16 18:32:13.226409 MyApp[577:121739] [DEBUG TCHttpJsonLongPollConnection] Inside beginning of onSocket:didConnectToHost
2016-10-16 18:32:13.226632 MyApp[577:121739] [DEBUG TCHttpJsonLongPollConnection] Starting TLS with settings:
{
    kCFStreamSSLPeerName = "*.twilio.com";
    kCFStreamSSLValidatesCertificateChain = 1;
    kCFStreamSocketSecurityLevelNegotiatedSSL = kCFStreamPropertySocketSecurityLevel;
}, inside onSocket:didConnectToHost:
2016-10-16 18:32:13.227088 MyApp[577:121739] [DEBUG TCEventStream] Inside longPollConnectionDidConnect:, stream <TCEventStream: 0x17427cbc0> connected
2016-10-16 18:32:13.227331 MyApp[577:121739] [DEBUG TCHttpJsonLongPollConnection] REQUEST: URL: https://matrix.twilio.com/2012-02-09/.............REMOVED............/TestName?AccessToken=..........................................REMOVED..................................&feature=publishPresence&feature=presenceEvents   GET /2012-02-09/........REMOVED............/ProjectName App?AccessToken=................................REMOVED....................................&feature=publishPresence&feature=pres
2016-10-16 18:32:14.028697 MyApp[577:121739] [DEBUG TCHttpJsonLongPollConnection] Inside beginning of onSocket:didReadData
2016-10-16 18:32:14.028836 MyApp[577:121739] [VERBOSE TCHttpJsonLongPollConnection] Received 
HTTP/1.0 400 Bad request
Cache-Control: no-cache
Connection: close
Content-Type: text/html

, inside onSocket:didReadData
2016-10-16 18:32:14.029065 MyApp[577:121739] [DEBUG TCEventStream] Inside longPollConnection:didReceiveHeaders:, stream <TCEventStream: 0x17427cbc0> got headers
2016-10-16 18:32:14.030074 MyApp[577:121739] [DEBUG TCEventStream] Inside longPollConnection:didFailWithError:, stream <TCEventStream: 0x17427cbc0> disconnected, error Error Domain=com.twilio.client.TCHttpErrorDomain Code=4 "HTTP server returned non-success status" UserInfo={com.twilio.client.TCHttpStatusCodeKey=400, NSLocalizedDescription=HTTP server returned non-success status}
2016-10-16 18:32:15.017604 MyApp[577:121739] [INFO TCSoundManager] TCSoundManager: playerItemDidReachEnd: 7466A900, (inside playerItemDidReachEnd)
2016-10-16 18:32:15.017913 MyApp[577:121739] [DEBUG TCCommandHandler] Inside postCommand:, received command of type TCMakeCallCommand
2016-10-16 18:32:15.018535 MyApp[577:121739] [DEBUG TCSoundManager] Player status: 1, inside observeValueForKeyPath:
2016-10-16 18:32:21.396771 MyApp[577:121739] [DEBUG Twilio] Application is in background
2016-10-16 18:32:21.397023 MyApp[577:121739] Legacy VoIP background mode is deprecated and no longer supported

可能是什么问题？

【问题讨论】：

您是否能够阅读响应中发送的错误消息（除了 400 错误代码）？类似的东西在这里显示：twilio.com/docs/api/errors#debugging-calls-to-the-rest-api
我没有检查实际的请求/响应，但这不是日志中写的吗？
向我们展示您的代码
如上所述-github.com/devinrader/SwiftPhone
同样的问题，TCMakeCallCommand 似乎因 EXC_BAD_ACCESS 而失败。如果你解决了这个问题，请告诉我。

标签： ios swift twilio

【解决方案1】：

很难看到代码（带有您输入的参数）来确定真正的问题是什么。但是我会尝试。您的日志文件中有两个问题：

400 BAD REQUEST 表示：HTTP POST 或PUT 中给出的数据验证失败。

longPollConnection : didFailWithError 表示：服务器不可用并且不响应和/或发送新信息。 –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

2016-10-16 18:32:14.030074 MyApp[577:121739] [DEBUG TCEventStream] Inside longPollConnection:didFailWithError:, stream <TCEventStream: 0x17427cbc0> disconnected, error Error Domain=com.twilio.client.TCHttpErrorDomain Code=4 "HTTP server returned non-success status" UserInfo={com.twilio.client.TCHttpStatusCodeKey=400, NSLocalizedDescription=HTTP server returned non-success status}

以下是可能的解决方案：

重置 Xcode 和 iOS 模拟器：How to Reset Xcode and the iOS Simulator 和 SO post

如有必要，请更新您的 Podfile：Pod install vs. pod update

阅读有关可能问题的文章：What is HTTP Long Polling?

观看这个有用的视频：Advanced Debugging and the Address Sanitizer

仔细检查这些参数：Voice: Twilio's request

如果您正在编写自己的客户端，则需要将 HTTP Content-Type 标头设置为 application/x-www-form-urlencoded您的要求。

您应该检查 response 正文以了解详细信息。

还有其他有用的参考资料：

Sending SMS text message using twilio not working

Twilio: REST API: making calls

¡希望对您有所帮助！

【讨论】：

不，我正在使用他们的官方 SDK，pod TwilioClient。此外，它发生在他们的官方演示项目中。
@Kof 你改变了Phone.swift中定义的常量吗？请张贴代码 sn-p。
是的，在Phone.swift 上使用了我的凭据。没什么可展示的，我只是分配了我的 SID 并输入了我的后端 URL。我的 Node.js 后端使用 Twilio Node.js SDK 生成一个有效令牌，然后将其返回到应用程序并用于创建连接。
好的，我等你的消息

【解决方案2】：

在 iOS 10 中，您应该使用 PushKit 来处理传入 VoIP 呼叫的推送通知。因此，当您针对 iOS 10 SDK 构建应用程序时，您需要迁移到 PushKit（可以一直支持到 iOS 8，但是一旦迁移到 iOS 10，我们的建议是将您的最低部署目标更新到 iOS 9）。

【讨论】：

【解决方案3】：

我相信您最好的选择是更新到可编程 TwilioVoice SDK 以避免将来出现此类问题，我们开始在使用 TwilioClient 的应用程序中遇到类似问题。 Twilio 已停止支持 TwilioClient SDK。

请查看：https://www.twilio.com/docs/voice/client/ios

切换到最新的 SDK 需要从后端/前端进行一些更改，因为它们已弃用 TCDevice、TCConnection 等类。

如果我能提供帮助，请告诉我。祝你好运。

【讨论】：