feat:引入人脸识别sdk

2025-11-29 01:17:29 +08:00
1 parent ce16eaf82e
commit 158d012eff
@@ -0,0 +1,24 @@
+//
+// Created on 2024/4/3.
+//
+// Node APIs are not fully supported. To solve the compilation error of the interface cannot be found,
+// please include "napi/native_api.h".
+
+#ifndef HARMONYFACEVERIFY_IMAGEUTILS_H
+#define HARMONYFACEVERIFY_IMAGEUTILS_H
+#include "BlobTypes.h"
+#include "FaceBlobTypes.h"
+namespace dtf {
+    class ImageUtils {
+        public:
+            static std::string Rotate(const Image *in, int angle, Image *out);
+            static std::string Crop(const Image *in, Rect rect, Image *out);
+            static std::string Scale(const Image *in, double x, double y, Image *out);
+            static std::string Packing(const Image *in, double compress_rate, Image *out);
+            static std::string YUV2RGB(const Image *in, Image *out);
+            static std::string BGRA2RGB(const Image *in, Image *out);
+            static void Release(Image *image);
+    };
+}
+
+#endif //HARMONYFACEVERIFY_IMAGEUTILS_H
@@ -0,0 +1,57 @@
+//
+// Created on 2024/4/2.
+//
+// Node APIs are not fully supported. To solve the compilation error of the interface cannot be found,
+// please include "napi/native_api.h".
+
+#ifndef HARMONYFACEVERIFY_BLOBMANAGER_H
+#define HARMONYFACEVERIFY_BLOBMANAGER_H
+
+#include "FaceBlobTypes.h"
+#include "BlobImageUtil.h"
+#include "BlobTypes.h"
+
+namespace dtf {
+
+    struct BlobConfig {
+        double compress_rate;
+        double desired_width;
+        bool need_enc_content;
+        bool need_enc_image;
+        int retry_count;
+        std::string upload_image_type;
+        std::string bis_token;
+        std::vector<std::string> collection;
+
+        // 加密配置
+        int aesKeyLen = 0;
+        std::string rsaMod = "";
+        std::string rsaExp = "";
+        
+        void SetDefault();
+        void ParseConfig(Json config_json);
+    };
+
+#ifdef DT_REQUEST_BLOB
+
+    class BlobManager {
+
+    public:
+        BlobConfig config;
+        std::string aes_key_cipher;
+        std::string aes_key;
+        int metaSerializer;
+        BlobManager(BlobConfig config);
+        ~BlobManager(); 
+        virtual FaceBlobContentResult GenerateBlob(std::vector<FaceFrame> &frames, const std::map<std::string, std::string> &ext);
+        virtual BlobMeta GenerateMeta(const std::map<std::string, std::string> &ext);
+        virtual std::string ToString(FaceBlobContentResult &result);
+        std::string ProcessImage(Image &image, Image *out, Image *out_encrypted);
+        std::string ProcessImage(Image &image, double compress_rate, Rect roi);
+    };
+
+#endif
+
+}
+
+#endif //HARMONYFACEVERIFY_BLOBMANAGER_H
@@ -0,0 +1,126 @@
+#ifndef BLOBPACKCONTROLLER_H
+#define BLOBPACKCONTROLLER_H
+
+#include <vector>
+#include <map>
+#include "dt_json11.hpp"
+#include "BlobManager.h"
+#include "BlobTypes.h"
+#include "DTEncrypt.h"
+
+using namespace std;
+
+namespace dtf {
+
+    class BlobPackController {
+    public:
+        BlobPackController();
+
+        ~BlobPackController();
+
+        /**
+         * @brief config 配置数据打包控制器
+         * @param config 图像压缩率&密钥等数据
+         */
+        void config(BlobConfig &config);
+
+         /**
+          * @brief cacheBlobContent 缓存人脸识别结果数据
+          * @param bestImage 最佳人脸图
+          * @param extraImages 额外采集人脸图片（动作：图片序列）
+          * @param ext 额外的配置（可不传）
+          */
+        void cacheBlobContent(FaceFrame &bestImage,
+                              vector<pair<string, vector<FaceFrame>>> extraImages = vector<pair<string, vector<FaceFrame>>>(),
+                              map<string, string> ext = map<string, string>());
+
+        /**
+         * @brief encryptExtraImages 加密额外数据图
+         * @param quality 图片质量
+         * @return 处理后的照片（动作：原始数据&jpeg图片&加密图片）
+         */
+        vector<pair<string, vector<FaceFrame>>> encryptExtraImages(float quality = 70);
+
+        /**
+         * @brief encryptBestImage 加密最佳人脸图
+         * @param quality 图片质量
+         * @return 原始数据&jpeg图片&加密图片
+         */
+        FaceFrame encryptBestImage(float quality = 70);
+
+        /**
+         * @brief signCollectionInfo 对CollectInfo签名
+         * @param param 额外参数 {"multipic_zfaceBlinkLiveness_video":"123123123123","multipic_LeftYawLiveness_video":"123123123123"}
+         * @return 签名加密数据
+         */
+        string signCollectionInfo(string param);
+
+        /**
+         * @brief geneateBlob 生成报文blob
+         * @return 认证报文
+         */
+        string geneateBlob();
+
+        /**
+         * @brief getContentSignature 获取ContentSig，RSA加密密钥
+         * @return 字符串
+         */
+        string getContentSignature();
+
+        /**
+         * @brief release 数据清除
+         */
+        void release();
+
+    protected:
+        /**
+         * @brief encryptImage 图像加密
+         * @param frame 帧数据
+         * @param quality 图片质量
+         * @return
+         */
+        FaceFrame encryptImage(FaceFrame &frame, float quality = 70);
+
+        /**
+         * @brief imageRelease 图片释放
+         * @param frame 帧
+         */
+        void imageRelease(FaceFrame &frame);
+
+        /**
+         * @brief generateCollectionInfo 生成CollectInfo信息
+         * @param param 外部生成生成CollectInfo
+         * @return 补充图片MD5数据后的CollectInfo
+         */
+        string generateCollectionInfo(string param);
+
+    private:
+        /**
+         * @brief contentEncrypt 图片内容加密
+         */
+        DTEncrypt contentEncrypt;
+        /**
+         * @brief behavelogEncrypt behavelog加密
+         */
+        DTEncrypt behavelogEncrypt;
+        /**
+         * @brief bestImage 最佳人脸图
+         */
+        FaceFrame bestImage;
+        /**
+         * @brief extraImages 额外数据
+         */
+        vector<pair<string, vector<FaceFrame>>> extraImages;
+        /**
+         * @brief blobConfig 报文配置
+         */
+        BlobConfig blobConfig;
+        /**
+         * @brief blobContentExtra 额外参数
+         */
+        map<string, string> blobContentExtra;
+    };
+
+}
+
+#endif //BLOBPACKCONTROLLER_H
@@ -0,0 +1,122 @@
+//
+// Created on 2024/4/2.
+//
+// Node APIs are not fully supported. To solve the compilation error of the interface cannot be found,
+// please include "napi/native_api.h".
+
+#ifndef HARMONYFACEVERIFY_BLOBMODEL_H
+#define HARMONYFACEVERIFY_BLOBMODEL_H
+
+#include "dt_json11.hpp"
+#include <string>
+
+namespace dtf {
+
+    struct ImageTypeConstant {
+        static const int YUV;
+        static const int RGB;
+        static const int BGRA;
+        static const int RGBA;
+        static const int BGR;
+    };
+
+    struct BlobConstant {
+        static const std::string BLOB_VERSION;
+        static const std::string SUB_TYPE_PANO;
+        static const std::string BLOB_ELEM_TYPE_FACE;
+        static const std::string SUB_TYPE_VERSION;
+        static const std::string PUB_KEY_N;
+        static const std::string PUB_KEY_E;
+    };
+
+    struct BlobPackConstant {
+        static const std::string EXT_NAME;
+    };
+
+#ifdef DT_REQUEST_BLOB
+
+    struct MetaConstant {
+
+        static const std::string VAL_TYPE_FACE;
+
+        static const std::string KEY_INVTP_TYPE;
+        static const std::string KEY_BIS_TOKEN;
+        static const std::string KEY_EXTRA_RETRY;
+        static const std::string KEY_EXTRA;
+        static const std::string KEY_DRAGONFLY;
+        static const std::string KEY_DRAGONFLY_PASS;
+        static const std::string KEY_PHOTINUS_VIDEO_OSS_NAME;
+        static const std::string KEY_PHOTINUS_METADATA_OSS_NAME;
+
+        static const std::string VAL_INVTP_TYPE_NORMAL;
+
+        //         static constexpr int VAL_DRAGONFLY_PASS_SUCCESS = 1;
+
+        static constexpr int VAL_SERIALIZER_JSON = 1;
+        static constexpr int VAL_SERIALIZER_PB = 2;
+        
+        //TS层传入的参数key
+        static const std::string PARAM_PHOTINUS_VIDEO_OSS_NAME;
+        static const std::string PARAM_PHOTINUS_METADATA_OSS_NAME;
+        static const std::string PARAM_BLOB_USE_NATIVE_SWITCH;
+    };
+
+#endif
+
+    struct Point {
+        double x;
+        double y;
+    };
+
+    struct Rect {
+        double left;
+        double right;
+        double top;
+        double bottom;
+        Rect() {}
+        Rect(double left, double right, double top, double bottom) {
+            this->left = left;
+            this->right = right;
+            this->top = top;
+            this->bottom = bottom;
+        }
+    };
+
+    struct Image {
+        uint8_t *data = nullptr;
+        int rotation;
+        double width;
+        double height;
+        long len = 0;
+        int format;
+        bool encrypted = false;
+        std::string base64 = "";
+        std::string md5 = "";
+    };
+
+#ifdef DT_REQUEST_BLOB
+
+    struct BlobMeta {
+        std::string type;
+        std::map<std::string,std::string> collectInfo;
+        std::map<std::string, int> score;
+        int serialize;
+        std::string invtp_type; 
+        std::string bistoken; 
+        std::map<std::string,std::string> extInfo;
+    };
+
+    struct BlobElem {
+        BlobElem(){}
+        std::string type;
+        std::string subType;
+        int idx;
+        std::string version;
+        std::string content;
+    };
+
+#endif
+
+} // namespace dtf
+
+#endif //HARMONYFACEVERIFY_BLOBMODEL_H
@@ -0,0 +1,135 @@
+//
+// Created by CandleWen on 2023/7/24.
+//
+
+#ifndef VERIFY_DTENCRYPT_H
+#define VERIFY_DTENCRYPT_H
+
+#include <string>
+
+using namespace std;
+
+namespace dtf
+{
+    /**
+     * AES & RSA 加密以及秘钥加密
+     * 人脸数据加密类
+     */
+    class DTEncrypt
+    {
+    public:
+        /**
+         * RSA加密数据
+         * @param mod PK modulus
+         * @param exp PK exponent
+         * @param content 加密内容
+         * @param out 输出内容
+         * @param out_len 输出长度
+         */
+        static void rsa_encrypt_content(const string &mod, const string &exp, const string &content,
+                                        unsigned char **out, size_t *out_len);
+
+        /**
+         * RSA加密数据，返回base64的字符串
+         * @param mod PK modulus
+         * @param exp PK exponent
+         * @param content 加密内容
+         */
+        static string base64_rsa_encrypt_content(const string &mod, const string &exp, const string &content);
+
+        /**
+         * AES加密
+         * @param giv
+         * @param in 输入内容
+         * @param in_len 输入内容长度
+         * @param key key
+         * @param out 输出内容
+         * @param out_len  输出内容长度
+         */
+        static void aes_encrypt(const string &giv, const unsigned char *in, size_t in_len, const string &key,
+                                unsigned char **out, size_t *out_len, uint8_t *iv = 0);
+
+        /**
+         * AES解密
+         * @param giv
+         * @param in 输入内容
+         * @param in_len 输入内容长度
+         * @param key key
+         * @param out 输出内容
+         * @param out_len  输出内容长度
+         */
+        static void aes_decrypt(const string &giv, const unsigned char *in, size_t in_len, const string &key,
+                                unsigned char **out, size_t *out_len, uint8_t *iv = 0);
+
+        /**
+         * 初始化
+         * @param aes_key_len AES加密秘钥长度
+         * @param mod RSA公钥modulus
+         * @param exp RSA公钥exponent
+         */
+        DTEncrypt(int aes_key_len, string mod, string exp);
+
+        DTEncrypt();
+
+        /**
+         * @brief init 重新初始化key
+         * @param aes_key_len key长度
+         * @param mod RSA公钥modulus
+         * @param exp RSA公钥exponent
+         */
+        void init(int aes_key_len, string mod, string exp);
+
+        /**
+         * aes 加密 key
+         * @return
+         */
+        string get_encrypt_key();
+
+        /**
+         * 对Content进行AES加密并返回Base64之后的加密字符串
+         * @param content 待加密内容
+         * @param content_len 待加密内容长度
+         * @return
+         */
+        string base64_encrypt_content(const unsigned char *content, size_t content_len);
+
+        /**
+         * 对content内容进行AES加密
+         * @param content 加密内容
+         * @return base64之后的加密字符串
+         */
+        string base64_encrypt_content(const string &content);
+
+        /**
+         * @brief DTEncrypt::encrypt_content 对content内容进行AES加密
+         * @param content
+         * @param content_len
+         * @param output_len
+         * @return
+         */
+        unsigned char *encrypt_content(const unsigned char *content, size_t content_len, size_t &output_len);
+
+        /**
+         * 对加密且base64之后的字符串进行解密，并做base64返回
+         * @param encrypt_content 待解密字符串
+         * @return 解密之后base64内容
+         */
+        string base64_decrypt_content(const string &encrypt_content);
+
+    private:
+        /**
+         * AES 加密秘钥
+         */
+        string aes_key;
+        /**
+         * RSA 对 AES 加密后数据
+         */
+        string encrypt_base64_key;
+        /**
+         * AES IV信息
+         */
+        string giv;
+    };
+}
+
+#endif // VERIFY_DTENCRYPT_H
@@ -0,0 +1,67 @@
+//
+// Created on 2024/4/7.
+//
+// Node APIs are not fully supported. To solve the compilation error of the interface cannot be found,
+// please include "napi/native_api.h".
+
+#ifndef HARMONYFACEVERIFY_FACEBLOBTYPES_H
+#define HARMONYFACEVERIFY_FACEBLOBTYPES_H
+
+#include "BlobTypes.h"
+
+namespace dtf {
+
+    struct FaceAttr {
+        Rect face_region;
+        float quality;
+        float confidence;
+    };
+
+    struct FaceInfo {
+        Rect rect;
+        std::vector<Point> points;
+        float confidence;
+        float quality;
+        std::string feature;
+        std::string feaVersion;
+    };
+
+    struct FaceFrame {
+        Image image;
+        Image jpegImage;
+        Image encryptImage;
+        FaceAttr attr;
+        std::map<std::string, std::string> extras;
+    };
+
+#ifdef DT_REQUEST_BLOB
+
+    struct FaceBlobElem : public BlobElem {
+        std::vector<FaceInfo> face_infos;
+        std::string return_image; //不加密的返照图
+    };
+
+    struct FaceBlob {
+        std::string blob_version;
+        std::vector<FaceBlobElem> blob_elem;
+    };
+
+    struct FaceBlobContent {
+        FaceBlob blob;
+        BlobMeta meta;
+    };
+
+    struct FaceBlobContentResult {
+        FaceBlobContent blob;
+        std::vector<std::string> blob_content;
+        std::vector<std::string> return_image;
+    };
+
+#endif
+}
+
+class FaceBlobTypes {
+
+};
+
+#endif //HARMONYFACEVERIFY_FACEBLOBTYPES_H
@@ -0,0 +1,232 @@
+/* json11
+ *
+ * json11 is a tiny JSON library for C++11, providing JSON parsing and serialization.
+ *
+ * The core object provided by the library is json11::Json. A Json object represents any JSON
+ * value: null, bool, number (int or double), string (std::string), array (std::vector), or
+ * object (std::map).
+ *
+ * Json objects act like values: they can be assigned, copied, moved, compared for equality or
+ * order, etc. There are also helper methods Json::dump, to serialize a Json to a string, and
+ * Json::parse (static) to parse a std::string as a Json object.
+ *
+ * Internally, the various types of Json object are represented by the JsonValue class
+ * hierarchy.
+ *
+ * A note on numbers - JSON specifies the syntax of number formatting but not its semantics,
+ * so some JSON implementations distinguish between integers and floating-point numbers, while
+ * some don't. In json11, we choose the latter. Because some JSON implementations (namely
+ * Javascript itself) treat all numbers as the same type, distinguishing the two leads
+ * to JSON that will be *silently* changed by a round-trip through those implementations.
+ * Dangerous! To avoid that risk, json11 stores all numbers as double internally, but also
+ * provides integer helpers.
+ *
+ * Fortunately, double-precision IEEE754 ('double') can precisely store any integer in the
+ * range +/-2^53, which includes every 'int' on most systems. (Timestamps often use int64
+ * or long long to avoid the Y2038K problem; a double storing microseconds since some epoch
+ * will be exact for +/- 275 years.)
+ */
+
+/* Copyright (c) 2013 Dropbox, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#pragma once
+
+#include <string>
+#include <vector>
+#include <map>
+#include <memory>
+#include <initializer_list>
+
+#ifdef _MSC_VER
+    #if _MSC_VER <= 1800 // VS 2013
+        #ifndef noexcept
+            #define noexcept throw()
+        #endif
+
+        #ifndef snprintf
+            #define snprintf _snprintf_s
+        #endif
+    #endif
+#endif
+
+namespace dtf {
+
+enum JsonParse {
+    STANDARD, COMMENTS
+};
+
+class JsonValue;
+
+class Json final {
+public:
+    // Types
+    enum Type {
+        NUL, NUMBER, BOOL, STRING, ARRAY, OBJECT
+    };
+
+    // Array and object typedefs
+    typedef std::vector<Json> array;
+    typedef std::map<std::string, Json> object;
+
+    // Constructors for the various types of JSON value.
+    Json() noexcept;                // NUL
+    Json(std::nullptr_t) noexcept;  // NUL
+    Json(double value);             // NUMBER
+    Json(int value);                // NUMBER
+    Json(bool value);               // BOOL
+    Json(const std::string &value); // STRING
+    Json(std::string &&value);      // STRING
+    Json(const char * value);       // STRING
+    Json(const array &values);      // ARRAY
+    Json(array &&values);           // ARRAY
+    Json(const object &values);     // OBJECT
+    Json(object &&values);          // OBJECT
+
+    // Implicit constructor: anything with a to_json() function.
+    template <class T, class = decltype(&T::to_json)>
+    Json(const T & t) : Json(t.to_json()) {}
+
+    // Implicit constructor: map-like objects (std::map, std::unordered_map, etc)
+    template <class M, typename std::enable_if<
+        std::is_constructible<std::string, decltype(std::declval<M>().begin()->first)>::value
+        && std::is_constructible<Json, decltype(std::declval<M>().begin()->second)>::value,
+            int>::type = 0>
+    Json(const M & m) : Json(object(m.begin(), m.end())) {}
+
+    // Implicit constructor: vector-like objects (std::list, std::vector, std::set, etc)
+    template <class V, typename std::enable_if<
+        std::is_constructible<Json, decltype(*std::declval<V>().begin())>::value,
+            int>::type = 0>
+    Json(const V & v) : Json(array(v.begin(), v.end())) {}
+
+    // This prevents Json(some_pointer) from accidentally producing a bool. Use
+    // Json(bool(some_pointer)) if that behavior is desired.
+    Json(void *) = delete;
+
+    // Accessors
+    Type type() const;
+
+    bool is_null()   const { return type() == NUL; }
+    bool is_number() const { return type() == NUMBER; }
+    bool is_bool()   const { return type() == BOOL; }
+    bool is_string() const { return type() == STRING; }
+    bool is_array()  const { return type() == ARRAY; }
+    bool is_object() const { return type() == OBJECT; }
+
+    // Return the enclosed value if this is a number, 0 otherwise. Note that json11 does not
+    // distinguish between integer and non-integer numbers - number_value() and int_value()
+    // can both be applied to a NUMBER-typed object.
+    double number_value() const;
+    int int_value() const;
+
+    // Return the enclosed value if this is a boolean, false otherwise.
+    bool bool_value() const;
+    // Return the enclosed string if this is a string, "" otherwise.
+    const std::string &string_value() const;
+    // Return the enclosed std::vector if this is an array, or an empty vector otherwise.
+    const array &array_items() const;
+    // Return the enclosed std::map if this is an object, or an empty map otherwise.
+    const object &object_items() const;
+
+    // Return a reference to arr[i] if this is an array, Json() otherwise.
+    const Json & operator[](size_t i) const;
+    // Return a reference to obj[key] if this is an object, Json() otherwise.
+    const Json & operator[](const std::string &key) const;
+
+    // Serialize.
+    void dump(std::string &out) const;
+    std::string dump() const {
+        std::string out;
+        dump(out);
+        return out;
+    }
+
+    // Parse. If parse fails, return Json() and assign an error message to err.
+    static Json parse(const std::string & in,
+                      std::string & err,
+                      JsonParse strategy = JsonParse::STANDARD);
+    static Json parse(const char * in,
+                      std::string & err,
+                      JsonParse strategy = JsonParse::STANDARD) {
+        if (in) {
+            return parse(std::string(in), err, strategy);
+        } else {
+            err = "null input";
+            return nullptr;
+        }
+    }
+    // Parse multiple objects, concatenated or separated by whitespace
+    static std::vector<Json> parse_multi(
+        const std::string & in,
+        std::string::size_type & parser_stop_pos,
+        std::string & err,
+        JsonParse strategy = JsonParse::STANDARD);
+
+    static inline std::vector<Json> parse_multi(
+        const std::string & in,
+        std::string & err,
+        JsonParse strategy = JsonParse::STANDARD) {
+        std::string::size_type parser_stop_pos;
+        return parse_multi(in, parser_stop_pos, err, strategy);
+    }
+
+    bool operator== (const Json &rhs) const;
+    bool operator<  (const Json &rhs) const;
+    bool operator!= (const Json &rhs) const { return !(*this == rhs); }
+    bool operator<= (const Json &rhs) const { return !(rhs < *this); }
+    bool operator>  (const Json &rhs) const { return  (rhs < *this); }
+    bool operator>= (const Json &rhs) const { return !(*this < rhs); }
+
+    /* has_shape(types, err)
+     *
+     * Return true if this is a JSON object and, for each item in types, has a field of
+     * the given type. If not, return false and set err to a descriptive message.
+     */
+    typedef std::initializer_list<std::pair<std::string, Type>> shape;
+    bool has_shape(const shape & types, std::string & err) const;
+
+private:
+    std::shared_ptr<JsonValue> m_ptr;
+};
+
+// Internal class hierarchy - JsonValue objects are not exposed to users of this API.
+class JsonValue {
+protected:
+    friend class Json;
+    friend class JsonInt;
+    friend class JsonDouble;
+    virtual Json::Type type() const = 0;
+    virtual bool equals(const JsonValue * other) const = 0;
+    virtual bool less(const JsonValue * other) const = 0;
+    virtual void dump(std::string &out) const = 0;
+    virtual double number_value() const;
+    virtual int int_value() const;
+    virtual bool bool_value() const;
+    virtual const std::string &string_value() const;
+    virtual const Json::array &array_items() const;
+    virtual const Json &operator[](size_t i) const;
+    virtual const Json::object &object_items() const;
+    virtual const Json &operator[](const std::string &key) const;
+    virtual ~JsonValue() {}
+};
+
+} // namespace dtf