{"id":44749,"date":"2023-12-09T03:56:53","date_gmt":"2023-10-30T20:52:21","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/44749-2\/"},"modified":"2024-05-04T12:46:06","modified_gmt":"2024-05-04T04:46:06","slug":"44749-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/44749-2\/","title":{"rendered":""},"content":{"rendered":"<h1>\u306f\u3058\u3081\u306b<\/h1>\n<p>\u8a8d\u53ef\u5c02\u7528\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3042\u308bCasbin\u3092\u4f7f\u3063\u3066\u3001ABAC\u3092\u5b9f\u88c5\u3057\u3066\u307f\u308b\u3002Casbin\u3067\u306f\u3001\u5358\u7d14\u306b\u30eb\u30fc\u30eb\u3092\u7f85\u5217\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001eval()\u3068\u3044\u3046\u7d44\u307f\u8fbc\u307f\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4efb\u610f\u306e\u8a8d\u53ef\u30ed\u30b8\u30c3\u30af\u3092\u7c21\u6f54\u306b\u7d44\u307f\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u306a\u304a\u3001Casbin\u305d\u306e\u3082\u306e\u3084RBAC\/ABAC\u7b49\u306e\u8a8d\u53ef\u306e\u6982\u5ff5\u306b\u95a2\u3059\u308b\u8aac\u660e\u306f\u672c\u8a18\u4e8b\u3067\u306f\u3057\u306a\u3044\u3002<\/p>\n<p>eval()\u3067\u306f\u3001\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u4f8b\u306e\u3088\u3046\u306b\u76f4\u63a5\u30ed\u30b8\u30c3\u30af\u3092\u6e21\u3059\u3053\u3068\u3082\u3067\u304d\u308b\u3057\u3001AddFunction\u3068\u3044\u3046API\u3092\u4f7f\u3063\u3066Go\u3067\u8a18\u8ff0\u3057\u305f\u4efb\u610f\u306e\u95a2\u6570\u3092\u767b\u9332\u3057\u3001\u305d\u308c\u3092\u30dd\u30ea\u30b7\u30fc\u5185\u3067\u547c\u3073\u51fa\u3059\u3053\u3068\u3082\u3067\u304d\u308b\u3002\u4eca\u56de\u306f\u5f8c\u8005\u306e\u65b9\u6cd5\u3092\u4f7f\u3044\u3001DB\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u5fc5\u8981\u306a\u6a29\u9650\u7ba1\u7406\u306e\u30ed\u30b8\u30c3\u30af\u3001\u3068\u3044\u3046\u60f3\u5b9a\u3067\u5b9f\u88c5\u3057\u3066\u307f\u308b\u3002<\/p>\n<h1>\u5b9f\u88c5\u3059\u308b\u30b7\u30ca\u30ea\u30aa<\/h1>\n<p>\u4eca\u56de\u306f\u3001\u75c5\u9662\u3067\u4f7f\u7528\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u3092\u60f3\u5b9a\u3057\u3001\u300c\u81ea\u5206\u304c\u62c5\u5f53\u3057\u3066\u3044\u308b\u60a3\u8005\u306e\u30c7\u30fc\u30bf\u306b\u306e\u307f\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u300d\u3068\u3044\u3046\u8981\u4ef6\u3092\u5b9f\u88c5\u3059\u308b\u3002<\/p>\n<h1>\u5b9f\u88c5<\/h1>\n<h2>\u30e2\u30c7\u30eb\u306e\u5b9a\u7fa9<\/h2>\n<p>model.conf\u30d5\u30a1\u30a4\u30eb\u306b\u30e2\u30c7\u30eb\u3092\u5b9a\u7fa9\u3059\u308b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"o\">[<\/span>request_definition]\r\nr <span class=\"o\">=<\/span> user, obj, method\r\n\r\n<span class=\"o\">[<\/span>policy_definition]\r\np <span class=\"o\">=<\/span> path, method, rule\r\n\r\n<span class=\"o\">[<\/span>policy_effect]\r\ne <span class=\"o\">=<\/span> some<span class=\"o\">(<\/span>where <span class=\"o\">(<\/span>p.eft <span class=\"o\">==<\/span> allow<span class=\"o\">))<\/span>\r\n\r\n<span class=\"o\">[<\/span>matchers]\r\nm <span class=\"o\">=<\/span> keyMatch5<span class=\"o\">(<\/span>r.obj.Path, p.path<span class=\"o\">)<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"o\">(<\/span>r.method <span class=\"o\">==<\/span> p.method <span class=\"o\">||<\/span> p.method <span class=\"o\">==<\/span> <span class=\"s2\">\"*\"<\/span><span class=\"o\">)<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"nb\">eval<\/span><span class=\"o\">(<\/span>p.rule<span class=\"o\">)<\/span>\r\n<\/code><\/pre>\n<h2>\u30dd\u30ea\u30b7\u30fc<\/h2>\n<p>policy.csv\u306b\u30dd\u30ea\u30b7\u30fc\u3092\u8a18\u8ff0\u3059\u308b\u3002<\/p>\n<pre class=\"post-pre\"><code>p, \/patient\/{patient_id}\/record, *, \"is_assigned_patient(r.user.ID, r.obj.ID)\"\r\n<\/code><\/pre>\n<h2>API\u3068\u8a8d\u53ef\u7528\u30df\u30c9\u30eb\u30a6\u30a7\u30a2<\/h2>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">(<\/span>\r\n\t<span class=\"s\">\"fmt\"<\/span>\r\n\t<span class=\"s\">\"net\/http\"<\/span>\r\n\t<span class=\"s\">\"strconv\"<\/span>\r\n\r\n\t<span class=\"s\">\"github.com\/casbin\/casbin\/v2\"<\/span>\r\n\t<span class=\"s\">\"github.com\/labstack\/echo\/v4\"<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">var<\/span> <span class=\"n\">enforcer<\/span> <span class=\"o\">*<\/span><span class=\"n\">casbin<\/span><span class=\"o\">.<\/span><span class=\"n\">Enforcer<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">e<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">echo<\/span><span class=\"o\">.<\/span><span class=\"n\">New<\/span><span class=\"p\">()<\/span>\r\n\r\n\t<span class=\"k\">var<\/span> <span class=\"n\">err<\/span> <span class=\"kt\">error<\/span>\r\n\t<span class=\"n\">enforcer<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">=<\/span> <span class=\"n\">casbin<\/span><span class=\"o\">.<\/span><span class=\"n\">NewEnforcer<\/span><span class=\"p\">(<\/span><span class=\"s\">\"model.conf\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"policy.csv\"<\/span><span class=\"p\">)<\/span>\r\n\t<span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n\t\t<span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n\t<span class=\"p\">}<\/span>\r\n\r\n\t<span class=\"n\">enforcer<\/span><span class=\"o\">.<\/span><span class=\"n\">EnableLog<\/span><span class=\"p\">(<\/span><span class=\"no\">true<\/span><span class=\"p\">)<\/span>\r\n\r\n\t<span class=\"c\">\/\/ \u4efb\u610f\u306e\u95a2\u6570\u3092Casbin\u306b\u767b\u9332\u3059\u308b<\/span>\r\n\t<span class=\"n\">enforcer<\/span><span class=\"o\">.<\/span><span class=\"n\">AddFunction<\/span><span class=\"p\">(<\/span><span class=\"s\">\"is_assigned_patient\"<\/span><span class=\"p\">,<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">args<\/span> <span class=\"o\">...<\/span><span class=\"k\">interface<\/span><span class=\"p\">{})<\/span> <span class=\"p\">(<\/span><span class=\"k\">interface<\/span><span class=\"p\">{},<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\t\t<span class=\"c\">\/\/ NOTE: Casbin\u306f\u6587\u5b57\u5217\u578b\u306e\u307f\u5bfe\u5fdc\u3057\u3066\u3044\u308b https:\/\/github.com\/casbin\/casbin\/issues\/113<\/span>\r\n\t\t<span class=\"n\">doctorIDStr<\/span><span class=\"p\">,<\/span> <span class=\"n\">ok<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">args<\/span><span class=\"p\">[<\/span><span class=\"m\">0<\/span><span class=\"p\">]<\/span><span class=\"o\">.<\/span><span class=\"p\">(<\/span><span class=\"kt\">string<\/span><span class=\"p\">)<\/span>\r\n\t\t<span class=\"k\">if<\/span> <span class=\"o\">!<\/span><span class=\"n\">ok<\/span> <span class=\"p\">{<\/span>\r\n\t\t\t<span class=\"k\">return<\/span> <span class=\"no\">false<\/span><span class=\"p\">,<\/span> <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Errorf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"failed to get doctorID from casbin policy\"<\/span><span class=\"p\">)<\/span>\r\n\t\t<span class=\"p\">}<\/span>\r\n\r\n\t\t<span class=\"n\">patientIDStr<\/span><span class=\"p\">,<\/span> <span class=\"n\">ok<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">args<\/span><span class=\"p\">[<\/span><span class=\"m\">1<\/span><span class=\"p\">]<\/span><span class=\"o\">.<\/span><span class=\"p\">(<\/span><span class=\"kt\">string<\/span><span class=\"p\">)<\/span>\r\n\t\t<span class=\"k\">if<\/span> <span class=\"o\">!<\/span><span class=\"n\">ok<\/span> <span class=\"p\">{<\/span>\r\n\t\t\t<span class=\"k\">return<\/span> <span class=\"no\">false<\/span><span class=\"p\">,<\/span> <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Errorf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"failed to get patientID from casbin policy\"<\/span><span class=\"p\">)<\/span>\r\n\t\t<span class=\"p\">}<\/span>\r\n\r\n\t\t<span class=\"n\">doctorID<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">strconv<\/span><span class=\"o\">.<\/span><span class=\"n\">ParseUint<\/span><span class=\"p\">(<\/span><span class=\"n\">doctorIDStr<\/span><span class=\"p\">,<\/span> <span class=\"m\">10<\/span><span class=\"p\">,<\/span> <span class=\"m\">64<\/span><span class=\"p\">)<\/span>\r\n\t\t<span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n\t\t\t<span class=\"k\">return<\/span> <span class=\"no\">false<\/span><span class=\"p\">,<\/span> <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Errorf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"failed to parse doctorID: %w\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n\t\t<span class=\"p\">}<\/span>\r\n\r\n\t\t<span class=\"n\">patientID<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">strconv<\/span><span class=\"o\">.<\/span><span class=\"n\">ParseUint<\/span><span class=\"p\">(<\/span><span class=\"n\">patientIDStr<\/span><span class=\"p\">,<\/span> <span class=\"m\">10<\/span><span class=\"p\">,<\/span> <span class=\"m\">64<\/span><span class=\"p\">)<\/span>\r\n\t\t<span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n\t\t\t<span class=\"k\">return<\/span> <span class=\"no\">false<\/span><span class=\"p\">,<\/span> <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Errorf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"failed to parse patientID: %w\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n\t\t<span class=\"p\">}<\/span>\r\n\r\n        <span class=\"c\">\/\/ DB\u304b\u3089\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u3063\u305f\u533b\u8005\u304c\u62c5\u5f53\u3057\u3066\u3044\u308b\u60a3\u8005\u304b\u3069\u3046\u304b\u3092\u53d6\u5f97\u3059\u308b(\u4eca\u56de\u306f\u30e2\u30c3\u30af)<\/span>\r\n\t\t<span class=\"k\">return<\/span> <span class=\"n\">isPatientAssignedToDoctor<\/span><span class=\"p\">(<\/span><span class=\"kt\">int<\/span><span class=\"p\">(<\/span><span class=\"n\">doctorID<\/span><span class=\"p\">),<\/span> <span class=\"kt\">int<\/span><span class=\"p\">(<\/span><span class=\"n\">patientID<\/span><span class=\"p\">)),<\/span> <span class=\"no\">nil<\/span>\r\n\t<span class=\"p\">})<\/span>\r\n\r\n\t<span class=\"n\">e<\/span><span class=\"o\">.<\/span><span class=\"n\">Use<\/span><span class=\"p\">(<\/span><span class=\"n\">authorize<\/span><span class=\"p\">)<\/span>\r\n\t<span class=\"n\">e<\/span><span class=\"o\">.<\/span><span class=\"n\">GET<\/span><span class=\"p\">(<\/span><span class=\"s\">\"\/patient\/:patient_id\/record\"<\/span><span class=\"p\">,<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">c<\/span> <span class=\"n\">echo<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">)<\/span> <span class=\"kt\">error<\/span> <span class=\"p\">{<\/span>\r\n\t\t<span class=\"k\">return<\/span> <span class=\"n\">c<\/span><span class=\"o\">.<\/span><span class=\"n\">String<\/span><span class=\"p\">(<\/span><span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">StatusOK<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"Access Allowed<\/span><span class=\"se\">\\n\\n<\/span><span class=\"s\">\"<\/span><span class=\"p\">)<\/span>\r\n\t<span class=\"p\">})<\/span>\r\n\t<span class=\"n\">e<\/span><span class=\"o\">.<\/span><span class=\"n\">Logger<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"n\">e<\/span><span class=\"o\">.<\/span><span class=\"n\">Start<\/span><span class=\"p\">(<\/span><span class=\"s\">\":1323\"<\/span><span class=\"p\">))<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">User<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">ID<\/span> <span class=\"kt\">int<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Object<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">ID<\/span>   <span class=\"kt\">int<\/span>\r\n\t<span class=\"n\">Path<\/span> <span class=\"kt\">string<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/ \u8a8d\u53ef\u3092\u30df\u30c9\u30eb\u30a6\u30a7\u30a2\u3067\u5b9f\u65bd\u3059\u308b<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"n\">authorize<\/span><span class=\"p\">(<\/span><span class=\"n\">next<\/span> <span class=\"n\">echo<\/span><span class=\"o\">.<\/span><span class=\"n\">HandlerFunc<\/span><span class=\"p\">)<\/span> <span class=\"n\">echo<\/span><span class=\"o\">.<\/span><span class=\"n\">HandlerFunc<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"k\">return<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">c<\/span> <span class=\"n\">echo<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">)<\/span> <span class=\"kt\">error<\/span> <span class=\"p\">{<\/span>\r\n\t\t<span class=\"n\">path<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">c<\/span><span class=\"o\">.<\/span><span class=\"n\">Request<\/span><span class=\"p\">()<\/span><span class=\"o\">.<\/span><span class=\"n\">URL<\/span><span class=\"o\">.<\/span><span class=\"n\">Path<\/span>\r\n\t\t<span class=\"n\">method<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">c<\/span><span class=\"o\">.<\/span><span class=\"n\">Request<\/span><span class=\"p\">()<\/span><span class=\"o\">.<\/span><span class=\"n\">Method<\/span>\r\n\r\n\t\t<span class=\"n\">userIDStr<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">c<\/span><span class=\"o\">.<\/span><span class=\"n\">QueryParam<\/span><span class=\"p\">(<\/span><span class=\"s\">\"user_id\"<\/span><span class=\"p\">)<\/span>\r\n\t\t<span class=\"n\">userID<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">strconv<\/span><span class=\"o\">.<\/span><span class=\"n\">Atoi<\/span><span class=\"p\">(<\/span><span class=\"n\">userIDStr<\/span><span class=\"p\">)<\/span>\r\n\t\t<span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n\t\t\t<span class=\"k\">return<\/span> <span class=\"n\">echo<\/span><span class=\"o\">.<\/span><span class=\"n\">NewHTTPError<\/span><span class=\"p\">(<\/span><span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">StatusBadRequest<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span><span class=\"o\">.<\/span><span class=\"n\">Error<\/span><span class=\"p\">())<\/span>\r\n\t\t<span class=\"p\">}<\/span>\r\n\r\n\t\t<span class=\"n\">objectIDStr<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">c<\/span><span class=\"o\">.<\/span><span class=\"n\">Param<\/span><span class=\"p\">(<\/span><span class=\"s\">\"patient_id\"<\/span><span class=\"p\">)<\/span>\r\n\t\t<span class=\"n\">objectID<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">strconv<\/span><span class=\"o\">.<\/span><span class=\"n\">Atoi<\/span><span class=\"p\">(<\/span><span class=\"n\">objectIDStr<\/span><span class=\"p\">)<\/span>\r\n\t\t<span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n\t\t\t<span class=\"k\">return<\/span> <span class=\"n\">echo<\/span><span class=\"o\">.<\/span><span class=\"n\">NewHTTPError<\/span><span class=\"p\">(<\/span><span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">StatusBadRequest<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span><span class=\"o\">.<\/span><span class=\"n\">Error<\/span><span class=\"p\">())<\/span>\r\n\t\t<span class=\"p\">}<\/span>\r\n\r\n\t\t<span class=\"n\">obj<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">Object<\/span><span class=\"p\">{<\/span><span class=\"n\">ID<\/span><span class=\"o\">:<\/span> <span class=\"n\">objectID<\/span><span class=\"p\">,<\/span> <span class=\"n\">Path<\/span><span class=\"o\">:<\/span> <span class=\"n\">path<\/span><span class=\"p\">}<\/span>\r\n\r\n\t\t<span class=\"n\">ok<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">enforcer<\/span><span class=\"o\">.<\/span><span class=\"n\">Enforce<\/span><span class=\"p\">(<\/span><span class=\"n\">User<\/span><span class=\"p\">{<\/span><span class=\"n\">ID<\/span><span class=\"o\">:<\/span> <span class=\"n\">userID<\/span><span class=\"p\">},<\/span> <span class=\"n\">obj<\/span><span class=\"p\">,<\/span> <span class=\"n\">method<\/span><span class=\"p\">)<\/span>\r\n\t\t<span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n\t\t\t<span class=\"k\">return<\/span> <span class=\"n\">echo<\/span><span class=\"o\">.<\/span><span class=\"n\">NewHTTPError<\/span><span class=\"p\">(<\/span><span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">StatusInternalServerError<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span><span class=\"o\">.<\/span><span class=\"n\">Error<\/span><span class=\"p\">())<\/span>\r\n\t\t<span class=\"p\">}<\/span>\r\n\t\t<span class=\"k\">if<\/span> <span class=\"n\">ok<\/span> <span class=\"p\">{<\/span>\r\n\t\t\t<span class=\"k\">return<\/span> <span class=\"n\">next<\/span><span class=\"p\">(<\/span><span class=\"n\">c<\/span><span class=\"p\">)<\/span>\r\n\t\t<span class=\"p\">}<\/span>\r\n\t\t<span class=\"k\">return<\/span> <span class=\"n\">c<\/span><span class=\"o\">.<\/span><span class=\"n\">String<\/span><span class=\"p\">(<\/span><span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">StatusForbidden<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"Access denied<\/span><span class=\"se\">\\n\\n<\/span><span class=\"s\">\"<\/span><span class=\"p\">)<\/span>\r\n\t<span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">isPatientAssignedToDoctor<\/span><span class=\"p\">(<\/span><span class=\"n\">doctorID<\/span> <span class=\"kt\">int<\/span><span class=\"p\">,<\/span> <span class=\"n\">patientID<\/span> <span class=\"kt\">int<\/span><span class=\"p\">)<\/span> <span class=\"kt\">bool<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"k\">if<\/span> <span class=\"n\">doctorID<\/span> <span class=\"o\">==<\/span> <span class=\"m\">1<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"n\">patientID<\/span> <span class=\"o\">==<\/span> <span class=\"m\">1<\/span> <span class=\"p\">{<\/span>\r\n\t\t<span class=\"k\">return<\/span> <span class=\"no\">true<\/span>\r\n\t<span class=\"p\">}<\/span>\r\n\t<span class=\"k\">return<\/span> <span class=\"no\">false<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6ce8\u610f\u70b9\u3068\u3057\u3066\u3001Casbin\u306e\u30dd\u30ea\u30b7\u30fc\u306fString\u578b\u306b\u3057\u304b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u3002\u6587\u5b57\u5217\u578b\u4ee5\u5916\u3092\u6e21\u3059\u3068\u6b63\u3057\u304f\u5224\u5b9a\u3067\u304d\u306a\u3044\u3053\u3068\u304c\u3042\u308b\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3002<\/p>\n<h1>\u52d5\u4f5c\u78ba\u8a8d<\/h1>\n<pre class=\"post-pre\"><code>\/\/ \u81ea\u5206\u304c\u62c5\u5f53\u3057\u3066\u3044\u308b\u60a3\u8005\u306e\u60c5\u5831\u306f\u53d6\u5f97\u3067\u304d\u308b\r\n<span class=\"nv\">$ <\/span>curl <span class=\"s1\">'http:\/\/localhost:1323\/patient\/1\/record?user_id=1'<\/span>\r\nAccess Allowed\r\n\r\n\/\/ \u81ea\u5206\u304c\u62c5\u5f53\u3057\u3066\u3044\u306a\u3044\u60a3\u8005\u306e\u60c5\u5831\u306f\u53d6\u5f97\u3067\u304d\u306a\u3044\r\n<span class=\"nv\">$ <\/span>curl <span class=\"s1\">'http:\/\/localhost:1323\/patient\/2\/record?user_id=1'<\/span>\r\nAccess denied\r\n<\/code><\/pre>\n<h1>\u53c2\u8003\u6587\u732e<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">https:\/\/casbin.org\/ja\/docs\/abac<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">https:\/\/future-architect.github.io\/articles\/20221004a\/<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u306b \u8a8d\u53ef\u5c02\u7528\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3042\u308bCasbin\u3092\u4f7f\u3063\u3066\u3001ABAC\u3092\u5b9f\u88c5\u3057\u3066\u307f\u308b\u3002Casbin\u3067\u306f\u3001\u5358\u7d14\u306b\u30eb\u30fc [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-44749","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>- Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/44749-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u306f\u3058\u3081\u306b \u8a8d\u53ef\u5c02\u7528\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3042\u308bCasbin\u3092\u4f7f\u3063\u3066\u3001ABAC\u3092\u5b9f\u88c5\u3057\u3066\u307f\u308b\u3002Casbin\u3067\u306f\u3001\u5358\u7d14\u306b\u30eb\u30fc [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/44749-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-10-30T20:52:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-04T04:46:06+00:00\" \/>\n<meta name=\"author\" content=\"\u79d1, \u9896\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u79d1, \u9896\" \/>\n\t<meta name=\"twitter:label2\" 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