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(Unicode C) Decode Microsoft Graph ID TokenDemonstrates how to decode a Microsoft Graph ID token.
#include <C_CkJsonObjectW.h> #include <C_CkJwtW.h> void ChilkatSample(void) { HCkJsonObjectW jsonToken; BOOL success; HCkJwtW jwt; const wchar_t *idToken; const wchar_t *jose; HCkJsonObjectW jsonHeader; const wchar_t *claims; HCkJsonObjectW jsonClaims; const wchar_t *ver; const wchar_t *iss; const wchar_t *s_sub; const wchar_t *aud; int exp; int iat; int nbf; const wchar_t *name; const wchar_t *preferred_username; const wchar_t *oid; const wchar_t *tid; const wchar_t *aio; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // In a previous example, we obtained a Microsoft Graph OAuth2 access token. // This example loads the JSON saved from the previous example and decodes the id_token. // Our Microsoft Graph OAuth2 token looks like this: // { // "token_type": "Bearer", // "scope": "openid profile User.ReadWrite Mail.ReadWrite Mail.Send Files.ReadWrite User.Read Calendars.ReadWrite Group.ReadWrite.All", // "expires_in": 3600, // "ext_expires_in": 3600, // "access_token": "EwCQA8l6...0HhMKYwC", // "refresh_token": "MCWulIvzi2yD0S...igEFn51mqcByhZtAJg", // "id_token": "eyJ0eXAiOiJKV1...Q7lRDaR-7A", // "expires_on": "1562862714" // } jsonToken = CkJsonObjectW_Create(); success = CkJsonObjectW_LoadFile(jsonToken,L"qa_data/tokens/microsoftGraph.json"); if (success == FALSE) { wprintf(L"Failed to load the JSON file...\n"); CkJsonObjectW_Dispose(jsonToken); return; } // Use Chilkat's JWT API to examine the id_token.. jwt = CkJwtW_Create(); idToken = CkJsonObjectW_stringOf(jsonToken,L"id_token"); // Extract the JOSE header.. jose = CkJwtW_getHeader(jwt,idToken); jsonHeader = CkJsonObjectW_Create(); CkJsonObjectW_Load(jsonHeader,jose); CkJsonObjectW_putEmitCompact(jsonHeader,FALSE); wprintf(L"%s\n",CkJsonObjectW_emit(jsonHeader)); // The JOSE header looks like this: // { // "typ": "JWT", // "alg": "RS256", // "kid": "1LTMzakihiRla_8z2BEJVXeWMqo" // } claims = CkJwtW_getPayload(jwt,idToken); jsonClaims = CkJsonObjectW_Create(); CkJsonObjectW_Load(jsonClaims,claims); CkJsonObjectW_putEmitCompact(jsonClaims,FALSE); wprintf(L"%s\n",CkJsonObjectW_emit(jsonClaims)); // The claims look like this: // { // "ver": "2.0", // "iss": "https://login.microsoftonline.com/9188040d-6c67-4c5b-b112-36a304b66dad/v2.0", // "sub": "AAAAAAAAAAAAAAAAAAAAAHJFryd6Gydo-XtTd1nhUNQ", // "aud": "18c456bd-db75-43fe-9724-9e5d821c68ff", // "exp": 1562945513, // "iat": 1562858813, // "nbf": 1562858813, // "name": "Matt Chilkat", // "preferred_username": "matt@example.com", // "oid": "00000000-0000-0000-3a33-fceb9b74cc15", // "tid": "9188040d-6c67-4c5b-b112-36a304b66dad", // "aio": "DfibJqKnWC1c0FS6G ... W6pvTrQuYzyq16ghY$" // } // // Use this online tool to generate parsing code from sample JSON: // Generate Parsing Code from JSON // Get each of the claims.. ver = CkJsonObjectW_stringOf(jsonClaims,L"ver"); iss = CkJsonObjectW_stringOf(jsonClaims,L"iss"); s_sub = CkJsonObjectW_stringOf(jsonClaims,L"sub"); aud = CkJsonObjectW_stringOf(jsonClaims,L"aud"); exp = CkJsonObjectW_IntOf(jsonClaims,L"exp"); iat = CkJsonObjectW_IntOf(jsonClaims,L"iat"); nbf = CkJsonObjectW_IntOf(jsonClaims,L"nbf"); name = CkJsonObjectW_stringOf(jsonClaims,L"name"); preferred_username = CkJsonObjectW_stringOf(jsonClaims,L"preferred_username"); oid = CkJsonObjectW_stringOf(jsonClaims,L"oid"); tid = CkJsonObjectW_stringOf(jsonClaims,L"tid"); aio = CkJsonObjectW_stringOf(jsonClaims,L"aio"); CkJsonObjectW_Dispose(jsonToken); CkJwtW_Dispose(jwt); CkJsonObjectW_Dispose(jsonHeader); CkJsonObjectW_Dispose(jsonClaims); } |
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