#135 Add ClientToken support

proto/client_token.proto

@@ -0,0 +1,125 @@
+syntax = "proto3";
+
+package spotify.clienttoken.http.v0;
+
+import "connectivity.proto";
+
+option optimize_for = CODE_SIZE;
+option java_package = "com.spotify.clienttoken.http.v0";
+
+message ClientTokenRequest {
+    ClientTokenRequestType request_type = 1;
+
+    oneof request {
+        ClientDataRequest client_data = 2;
+        ChallengeAnswersRequest challenge_answers = 3;
+    }
+}
+
+message ClientDataRequest {
+    string client_version = 1;
+    string client_id = 2;
+
+    oneof data {
+        data.v0.ConnectivitySdkData connectivity_sdk_data = 3;
+    }
+}
+
+message ChallengeAnswersRequest {
+    string state = 1;
+    repeated ChallengeAnswer answers = 2;
+}
+
+message ClientTokenResponse {
+    ClientTokenResponseType response_type = 1;
+
+    oneof response {
+        GrantedTokenResponse granted_token = 2;
+        ChallengesResponse challenges = 3;
+    }
+}
+
+message TokenDomain {
+    string domain = 1;
+}
+
+message GrantedTokenResponse {
+    string token = 1;
+    int32 expires_after_seconds = 2;
+    int32 refresh_after_seconds = 3;
+    repeated TokenDomain domains = 4;
+}
+
+message ChallengesResponse {
+    string state = 1;
+    repeated Challenge challenges = 2;
+}
+
+message ClientSecretParameters {
+    string salt = 1;
+}
+
+message EvaluateJSParameters {
+    string code = 1;
+    repeated string libraries = 2;
+}
+
+message HashCashParameters {
+    int32 length = 1;
+    string prefix = 2;
+}
+
+message Challenge {
+    ChallengeType type = 1;
+
+    oneof parameters {
+        ClientSecretParameters client_secret_parameters = 2;
+        EvaluateJSParameters evaluate_js_parameters = 3;
+        HashCashParameters evaluate_hashcash_parameters = 4;
+    }
+}
+
+message ClientSecretHMACAnswer {
+    string hmac = 1;
+}
+
+message EvaluateJSAnswer {
+    string result = 1;
+}
+
+message HashCashAnswer {
+    string suffix = 1;
+}
+
+message ChallengeAnswer {
+    ChallengeType ChallengeType = 1;
+
+    oneof answer {
+        ClientSecretHMACAnswer client_secret = 2;
+        EvaluateJSAnswer evaluate_js = 3;
+        HashCashAnswer hash_cash = 4;
+    }
+}
+
+message ClientTokenBadRequest {
+    string message = 1;
+}
+
+enum ClientTokenRequestType {
+    REQUEST_UNKNOWN = 0;
+    REQUEST_CLIENT_DATA_REQUEST = 1;
+    REQUEST_CHALLENGE_ANSWERS_REQUEST = 2;
+}
+
+enum ClientTokenResponseType {
+    RESPONSE_UNKNOWN = 0;
+    RESPONSE_GRANTED_TOKEN_RESPONSE = 1;
+    RESPONSE_CHALLENGES_RESPONSE = 2;
+}
+
+enum ChallengeType {
+    CHALLENGE_UNKNOWN = 0;
+    CHALLENGE_CLIENT_SECRET_HMAC = 1;
+    CHALLENGE_EVALUATE_JS = 2;
+    CHALLENGE_HASH_CASH = 3;
+}

proto/connectivity.proto

@@ -0,0 +1,51 @@
+syntax = "proto3";
+
+package spotify.clienttoken.data.v0;
+
+option optimize_for = CODE_SIZE;
+option java_package = "com.spotify.clienttoken.data.v0";
+
+message ConnectivitySdkData {
+    PlatformSpecificData platform_specific_data = 1;
+    string device_id = 2;
+}
+
+message PlatformSpecificData {
+    oneof data {
+        NativeAndroidData android = 1;
+        NativeIOSData ios = 2;
+        NativeWindowsData windows = 4;
+    }
+}
+
+message NativeAndroidData {
+    int32 major_sdk_version = 1;
+    int32 minor_sdk_version = 2;
+    int32 patch_sdk_version = 3;
+    uint32 api_version = 4;
+    Screen screen_dimensions = 5;
+}
+
+message NativeIOSData {
+    int32 user_interface_idiom = 1;
+    bool target_iphone_simulator = 2;
+    string hw_machine = 3;
+    string system_version = 4;
+    string simulator_model_identifier = 5;
+}
+
+message NativeWindowsData {
+    int32 something1 = 1;
+    int32 something3 = 3;
+    int32 something4 = 4;
+    int32 something6 = 6;
+    int32 something7 = 7;
+    int32 something8 = 8;
+    bool something10 = 10;
+}
+
+message Screen {
+    int32 width = 1;
+    int32 height = 2;
+    int32 density = 3;
+}