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TL;DR：当 IdentityServer3 将表单发布到始终是根 url 的返回 url 时，MVC 应用程序如何知道在通过身份验证过程后重定向到某个操作？

此问题中的示例取自 IdentityServer3 随附的示例应用程序“MVC 身份验证”。

将 IdentityServer3 插入 MVC 应用程序时，会提供一些客户端信息，包括重定向 url，通常是根 url。所以当一个动作需要认证时，它会重定向到执行认证的 IDP。之后，有一个表单帖子返回 url，如下所示：

POST https://localhost:44319/ HTTP/1.1
Host: localhost:44319
Connection: keep-alive
Content-Length: 2213
Cache-Control: max-age=0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Origin: https://localhost:44319
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.130 Safari/537.36
Content-Type: application/x-www-form-urlencoded
Referer: https://localhost:44319/identity/connect/consent?client_id=mvc&redirect_uri=https%3A%2F%2Flocalhost%3A44319%2F&response_mode=form_post&response_type=id_token%20token&scope=openid%20profile%20roles%20sampleApi&state=OpenIdConnect.AuthenticationProperties%3DAzAv5NequrWeysjiZ6TDUYTh4UQkWPvgTAIQ4RNg6rCzbdNLvQsHNSwRLyJfRuR1Kvn0IbQFrbiJ4hLD3LCTRRK6PZY0eL2uB8BKEioOCou2SUSCpDTG-dkSk-0SqkOc_17_x0yFjB171-VoGfTPYzBxbd-JkFWrEQQ2_fRP4mvbw7Uo7vo9Udu9c_u2nxL_R8LYc9kS5t8iuNt4Ydbxdw&nonce=635757605373442818.ZDBkNGNkMjgtYzBkNS00OGVjLTg0MzMtNGJjMjdmODRjMDYzN2M4MmE0ZjMtMzM4YS00YzA1LTgwYzEtYmNiODFiZjdiNjZm
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.8
Cookie: OpenIdConnect.nonce.OpenIdConnect=el9COXpSbS1PWmdPbW9oUHNTcEFfLUxkVklJQ3lPUzJsYkpTbU1NcXlfZ0JMMlVDWW9BVnowNEpNZDVNUTgyWG9lZ3hiQ3FlUXY1dUJmdmdhMHhzNkRZSnBIcmZoeHFGR214Qmt6cHl6a0lJc2NiTUJPRk1yeWduX3hoODBGaC1fMnZWbXZUajRjX2pEQ1gtMkJ2SDcyTXhRZjVVeHNoUzV2SVRlbXRPWk9iNWtRdHJfdU8weVNHQVZnQTNBSUVZelNMcFB6ZDZuT09kcW40RU9COUN1NW1TbklqMnR4MWl6NEtOcExDaVMtTQ%3D%3D

id_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsIng1dCI6ImEzck1VZ01Gdjl0UGNsTGE2eUYzekFrZnF1RSIsImtpZCI6ImEzck1VZ01Gdjl0UGNsTGE2eUYzekFrZnF1RSJ9.eyJub25jZSI6IjYzNTc1NzYwNTM3MzQ0MjgxOC5aREJrTkdOa01qZ3RZekJrTlMwME9HVmpMVGcwTXpNdE5HSmpNamRtT0RSak1EWXpOMk00TW1FMFpqTXRNek00WVMwMFl6QTFMVGd3WXpFdFltTmlPREZpWmpkaU5qWm0iLCJpYXQiOjE0NDAxNjM3NTIsImF0X2hhc2giOiJNTlRZTmtMVDhhY2NtcTdWQVJvOThnIiwic3ViIjoiMSIsImFtciI6InBhc3N3b3JkIiwiYXV0aF90aW1lIjoxNDQwMTYzNzQ5LCJpZHAiOiJpZHNydiIsImlzcyI6Imh0dHBzOi8vbG9jYWxob3N0OjQ0MzE5L2lkZW50aXR5IiwiYXVkIjoibXZjIiwiZXhwIjoxNDQwMTY0MDUyLCJuYmYiOjE0NDAxNjM3NTJ9.EgM5TogdDx3o25Otw9VVgXBzWQfzwt3s9pu4YmajNgiVh4ujj4eg2klrti7YDkd7jdxawNdogewc1ajxYR-r4TAxg3Brd3c8kFSCfXhEsr3DLakbYkWA8CaBJTqnVUnq_jadzUX4OkW9VPfLWlqkl0qRazogH06MAFVyge8k8PgGdf1Zk4RaRoX7bPyZ95ULivuXBt4aySQCVMS_GC03VxQksw3h3O-hzsJvm73OKKSo_wOikzsiozOkkA5sOZrVHGl7vQbLtsDTsMxXSLg6n-Kf4gySwskfAc-5okjgjBjjBm3OuzsaspHBZC2mlchaD_tllA0LHooi9Lna0REY7Q&access_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsIng1dCI6ImEzck1VZ01Gdjl0UGNsTGE2eUYzekFrZnF1RSIsImtpZCI6ImEzck1VZ01Gdjl0UGNsTGE2eUYzekFrZnF1RSJ9.eyJjbGllbnRfaWQiOiJtdmMiLCJzY29wZSI6WyJvcGVuaWQiLCJwcm9maWxlIiwicm9sZXMiLCJzYW1wbGVBcGkiXSwic3ViIjoiMSIsImFtciI6InBhc3N3b3JkIiwiYXV0aF90aW1lIjoxNDQwMTYzNzQ5LCJpZHAiOiJpZHNydiIsInJvbGUiOlsiR2VlayIsIkZvbyJdLCJpc3MiOiJodHRwczovL2xvY2FsaG9zdDo0NDMxOS9pZGVudGl0eSIsImF1ZCI6Imh0dHBzOi8vbG9jYWxob3N0OjQ0MzE5L2lkZW50aXR5L3Jlc291cmNlcyIsImV4cCI6MTQ0MDE2NzM1MiwibmJmIjoxNDQwMTYzNzUyfQ.nDSz4uQcyW6deZDxU2BXRjd5nKlMhbgbilEpD_yLhtbxg91N0DpNBOqVDmt4JbaOAKP9gIMDpaE8ZQR-NLQVtyKzNL8JuYLngmKrQPJJ-GM75qthpGIj72y8fo-OvOoiKEa3zQdbYjfVuSaQxmDiQ4mK4COSrvkB4SyIlEhvkMHFCrJFoktuhgpZl-jNe1ISGB6aDgZO2YTMo5LbVwBx0GS90cP0dMi8uCrDxql84P8Wg7_XTMkMYuVYeyYoukeNoaALBfWiCehOsdECQYZEMtaFTn47qaxvEpECdKaekoMCeJvqavGqpkCmRc-IK6Y3_qgtedibOhHTAIsbrpWzeg&token_type=Bearer&expires_in=3600&scope=openid+profile+roles+sampleApi&state=OpenIdConnect.AuthenticationProperties%3DAzAv5NequrWeysjiZ6TDUYTh4UQkWPvgTAIQ4RNg6rCzbdNLvQsHNSwRLyJfRuR1Kvn0IbQFrbiJ4hLD3LCTRRK6PZY0eL2uB8BKEioOCou2SUSCpDTG-dkSk-0SqkOc_17_x0yFjB171-VoGfTPYzBxbd-JkFWrEQQ2_fRP4mvbw7Uo7vo9Udu9c_u2nxL_R8LYc9kS5t8iuNt4Ydbxdw&session_state=9WBSt6Ko4espJ13yDbna9KIFe5kH8T4r8XtqeyoiIbA.ceb624206fccd4d72d79b53949693b3c

此特定请求将导致 302 重定向到MVC 应用程序中的/Home/Contact

HTTP/1.1 302 Found
Cache-Control: no-cache
Pragma: no-cache
Expires: -1
Location: https://localhost:44319/Home/Contact
Server: Microsoft-IIS/8.0
Set-Cookie: OpenIdConnect.nonce.OpenIdConnect=; path=/; expires=Thu, 01-Jan-1970 00:00:00 GMT
Set-Cookie: .AspNet.Cookies=JTvNM4i1jqb21SRYih59M2T1dPrbreQAXZ5d8DRlQmQf4vH-3r6wKxOABocffMC7tDSXFbqydxyllXZChSRvlrzaUmVkrZoCuoENMzBukchjdRxsnJLCV9pf3PCJsXCBOj_b8bLLDioqaKSOOSbBgAHdHplVEdBpcmt2EDcwDfWpTsiRlhn03pd4-nKc22OA-qZuGCEenG3OlDzMitCdbufgW7p2Z1rZ0WpSv70O_DFKdcP0zvGB8nm5YazpUPGthn3f-B5u7YpeCrLTifesKFBQz4hmsczbzKI2_NUJDEw-WqUucVN4DCLaSngoRrnR-PS0xB4PqgNt39nPD2KeaiQzmTf0kBNMsqSjspOWWNpUqYzFB3zstxPipRvCG4dUOPfqnrqJwyNuDxDCe15yFpcjmvqDaXjLnXQO_-3OfxlOjxG2VDqJXo6ZufimKiKfPxm5jINPvZ_ci__ZGOeRvulFex0bZk6DD8ZgOxBuTPtW7dSqypv-h-M817MIO5Su3AITbq3tznAY_nZwo7bkfQiGmciE5BNHVPfWtBo3bSPLNBr0ZoKsgVGUfRoRBoY-dndiNTZftZNysfsEcod5aDInZvlQSv1cJpShJqdZEJA6VeIe9JUpWgDzKikDYFWsUJ3bXTNrv28aC_XJjuVyyEXH3onVrpoyvB1QD9BGQ9FKERvNf3xMV9jr_aMgJvf-Q3rdmmlPadQnvvy4S0_kYaTt69dtgJL_HIjyKPduqCAnwjWkksIIHsONU07JgClcS3C9oHwb0iUUWzk7MmgLWHP1S6GQCOUIIgxgTOUdNf8DnC6Zzthbhfev92QymQ8vQxrFIgF-ImK0TjHnJdijJBTzbRJSBdVdi-lUalDlzsO0pgePzKL3fYfQcyHKMqG9_eQ-rgo7lVYwWY10WT3ZMNawVQmIQoIIJ5AXH4RLu0tUnuzxOk-alJukEE8Z8n1k6IIcfPul50skTv2B7rrsZfJZRCJu3_zZZ6WvgRAuFvhtLVFEgCVLX5_b_9Q7kIk-ZB_j1iJ9pUe29P1SFUVC1i9Sl41RbeAQN0v7NzQ9SM2S49-4xZ7C5CkYl8_5XxhUwc4Gh0EC9-AuXRBzAQKx3UjUhwUsEfibloxVz9fdz79-ouRadNPovlII-WU9MuL6_iyijROyWzAiKYiAR800pHbmPxAZQjQ6QYt1fj-M-bckDzyI8hX4ZhKxn3Gin5mzlGCJWe2dL5sInOq5tTz2fvPP24JxuHCjASalAqDl4j-QmiL0KlNXwzL7ttXlX9dEB9ptYA50b9Wr9h8Y-HbdZW8Zs5HMRZV763z5uEL613ZCbBZuDuhgz8_y5rHkQtpDrVU8xjtyRhpB2WdMaxKBWEXO-Qw5CZR5IkXbfGJ84k6F3TH3f4IkEhVPhAwinsphht1TQnibkxRpv0xP2Zn9VLZ0lTvWL5-T9gFCNru25wl7otoDFlFqWwyQcXwjKpRgrZIH3ebbqw86iIY1DavOPEWZBe1h8HQN8OroMNgYPWiB9G1nKrIj0ZQHxaaKCHkso4IMnnPe30kXjeGoA83kSQCN8z8iVdamqoem7zHt1RfRIwQNii8cy_MPZ_He0F1p8xdjiyGzJkjGpGk0xxCAD_T_pa7rcIHtLGgi9VfP_oQy_VWqaua9pRMObuczC9mj9MTEK-mQQvWEiewHK0ioMu4yxbN22OPSRKrEbmSzF3-P4lLMgQo8MXnMGJ7CeeZuXZ4nu8qAaWIOS1jGbCNXbZWDZ5GBmB-VTn_jqR_tjvO1_p011alg7g0rCtgjnlYaO1wYtDILx79sPwvxeVOOWefVR7TkTQ__3ZFn6z4NISg4CJ9eKDTd3y7Q8eKo4_i3jljxXGhpwXyCFL2Ks2TzGQ6BWv7R9kXAbDCTGBq-PG_eUppkM1o8VUaXmQ8SQoLxA8rlgR54hO1CHPqe8fR9st_DRsk42cjn-ftsOvX63-8FxkzivIiIyaUW7y0V7HEIFuBJDGZHj_TJCK69xVLyu0KwsxhraXlQF5jhAOm5AnrPa-jQMNxdc65yj1H95nFM6SjZeCVfdMs5W_unD3WI2Q; path=/; secure; HttpOnly
X-SourceFiles: =?UTF-8?B?QzpcRGV2XElkU3J2U2FtcGxlc1xzb3VyY2VcTVZDIEF1dGhlbnRpY2F0aW9uXEVtYmVkZGVkTXZj?=
X-Powered-By: ASP.NET
Date: Fri, 21 Aug 2015 13:29:12 GMT
Content-Length: 0

我的问题是这个请求中的什么决定了最终的 302 重定向到正确的控制器，这在 MVC 应用程序中的什么地方发生？原因是，我有一个不会发生的应用程序，所以我需要了解。

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2 回答 2

2

允许的重定向在RedirectUriIdentity ServerClient配置的属性中设置。然后在redirect_uri请求参数中设置客户端应用程序请求的重定向（例如，使用redirect_uri或使用UseOpenIdConnectAuthenticationOWIN 中间件通过表单发布显式设置。重定向必须返回到配置的重定向 URI 的子目录。

重定向到 Identity Server 本身由您提到的示例中的Authorizeor属性处理。ResourceAuthorize这些属性会导致 401，然后是 302 到您的登录页面（在本例中是 Identity Server 中的嵌入资产）。

Identity Server 仅使用您提供的重定向 URI。登录后重定向到应用程序中正确的控制器完全由应用程序处理。在示例的情况下，重定向回 /Home/Contact 控制器由UseOpenIdConnectAuthentication中间件和Authorize/ResourceAuthorize属性处理。

如果您有一个没有发生的问题，最好的办法是Client为 Identity Server 和您OpenIdConnectAuthenticationOptions的客户端应用程序发布您的课程。

于 2015-08-25T21:03:07.387 回答
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state=OpenIdConnect.AuthenticationProperties 可能包含有关重定向的信息。此数据已编码，您可以使用 katana 源尝试解码此数据并检查其中的内容。

nonce 也是每个 authN 请求的唯一参数，您的应用程序（通过 UseOpenIdConnectAuthentication 中间件）可以使用它来确定原始 URL，如 /Home/Contact 并重定向到它们

于 2015-09-01T11:55:11.263 回答