device内新增afp字段，记录app安装指纹。Review by 硬币。

@@ -23,5 +23,6 @@
 @property (copy, nonatomic, readonly) NSString *ifv;  // ifv
 @property (copy, nonatomic, readonly) NSString *res;  // 分辨率
 @property (copy, nonatomic, readonly) NSString *mac;  // Mac地址
+@property (copy, nonatomic, readonly) NSString *afp;  // app安装指纹（40位随机数）
 
 @end

@@ -18,6 +18,8 @@
 
 #import "YHDevice.h"
 
+static NSString *const kAppFingerPrint = @"com.yoho.appfingerprint";
+
 @interface YHDevice ()
 
 @property (copy, nonatomic) NSString *sv;   // 采集数据sdk的版本
@@ -29,6 +31,7 @@
 @property (copy, nonatomic) NSString *ifv;  // ifv
 @property (copy, nonatomic) NSString *res;  // 分辨率
 @property (copy, nonatomic) NSString *mac;  // Mac地址
+@property (copy, nonatomic) NSString *afp;  // app安装指纹（40位随机数）
 
 @end
 
@@ -66,6 +69,8 @@
         self.ifa = [[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString];
         
         self.mac = [YHDevice getMacAddress];
+        
+        self.afp = [YHDevice getAppFingerPrint];
     }
     
     return self;
@@ -85,6 +90,7 @@
              JsonKeyDeviceIFV : self.ifv ? self.ifv : @"",
              JsonKeyDeviceRES : self.res ? self.res : @"",
              JsonKeyDeviceMAC : self.mac ? self.mac : @"",
+             JsonKeyDeviceAFP : self.afp ? self.afp : @""
              };
 }
 
@@ -153,4 +159,16 @@
     return macAddressString;
 }
 
++ (NSString *)getAppFingerPrint
+{
+    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
+    NSString *fpString = [defaults objectForKey:kAppFingerPrint];
+    if (fpString == nil || ![fpString isKindOfClass:[NSString class]] || fpString.length != 40) {
+        fpString = [OpenUDID _generateFreshOpenUDID];
+        [defaults setObject:fpString forKey:kAppFingerPrint];
+        [defaults synchronize];
+    }
+    return fpString;
+}
+
 @end

@@ -65,5 +65,5 @@
 + (BOOL) isNewDevice;
 + (void) setFirstLaunch;
 + (BOOL) isFirstLaunch;
-
++ (NSString*) _generateFreshOpenUDID;
 @end

@@ -77,7 +77,6 @@ static NSString * const kYohoBuyFirstLaunch = @"firstlaunch";
 @interface OpenUDID (Private)
 + (void) _setDict:(id)dict forPasteboard:(id)pboard;
 + (NSMutableDictionary*) _getDictFromPasteboard:(id)pboard;
-+ (NSString*) _generateFreshOpenUDID;
 @end
 
 @implementation OpenUDID

@@ -86,6 +86,7 @@
 #define JsonKeyDeviceIFV                        @"ifv"      // idfv
 #define JsonKeyDeviceRES                        @"res"      // 分辨率
 #define JsonKeyDeviceMAC                        @"mac"      // Mac地址
+#define JsonKeyDeviceAFP                        @"afp"      // app安装指纹
 
 // 状态参数
 #define JsonKeyStatusAV                         @"av"       // App版本号