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Pods/LookinServer/Src/Main/Shared/LookinHierarchyFile.m

@@ -0,0 +1,64 @@
+#ifdef SHOULD_COMPILE_LOOKIN_SERVER 
+
+//
+//  LookinHierarchyFile.m
+//  Lookin
+//
+//  Created by Li Kai on 2019/5/12.
+//  https://lookin.work
+//
+
+
+
+#import "LookinHierarchyFile.h"
+
+#import "NSArray+Lookin.h"
+
+@implementation LookinHierarchyFile
+
+- (void)encodeWithCoder:(NSCoder *)aCoder {
+    [aCoder encodeInt:self.serverVersion forKey:@"serverVersion"];
+    [aCoder encodeObject:self.hierarchyInfo forKey:@"hierarchyInfo"];
+    [aCoder encodeObject:self.soloScreenshots forKey:@"soloScreenshots"];
+    [aCoder encodeObject:self.groupScreenshots forKey:@"groupScreenshots"];
+}
+
+- (instancetype)initWithCoder:(NSCoder *)aDecoder {
+    if (self = [super init]) {
+        self.serverVersion = [aDecoder decodeIntForKey:@"serverVersion"];
+        self.hierarchyInfo = [aDecoder decodeObjectForKey:@"hierarchyInfo"];
+        self.soloScreenshots = [aDecoder decodeObjectForKey:@"soloScreenshots"];
+        self.groupScreenshots = [aDecoder decodeObjectForKey:@"groupScreenshots"];
+    }
+    return self;
+}
+
++ (BOOL)supportsSecureCoding {
+    return YES;
+}
+
++ (NSError *)verifyHierarchyFile:(LookinHierarchyFile *)hierarchyFile {
+    if (![hierarchyFile isKindOfClass:[LookinHierarchyFile class]]) {
+        return LookinErr_Inner;
+    }
+    
+    if (hierarchyFile.serverVersion < LOOKIN_SUPPORTED_SERVER_MIN) {
+        // 文件版本太旧
+        // 如果不存在 serverVersion 这个字段，说明版本是 6
+        int fileVersion = hierarchyFile.serverVersion ? : 6;
+        NSString *detail = [NSString stringWithFormat:NSLocalizedString(@"The document was created by a Lookin app with too old version. Current Lookin app version is %@, but the document version is %@.", nil), @(LOOKIN_CLIENT_VERSION), @(fileVersion)];
+        return [NSError errorWithDomain:LookinErrorDomain code:LookinErrCode_ServerVersionTooLow userInfo:@{NSLocalizedDescriptionKey:NSLocalizedString(@"Failed to open the document.", nil), NSLocalizedRecoverySuggestionErrorKey:detail}];
+    }
+    
+    if (hierarchyFile.serverVersion > LOOKIN_SUPPORTED_SERVER_MAX) {
+        // 文件版本太新
+        NSString *detail = [NSString stringWithFormat:NSLocalizedString(@"Current Lookin app is too old to open this document. Current Lookin app version is %@, but the document version is %@.", nil), @(LOOKIN_CLIENT_VERSION), @(hierarchyFile.serverVersion)];
+        return [NSError errorWithDomain:LookinErrorDomain code:LookinErrCode_ServerVersionTooHigh userInfo:@{NSLocalizedDescriptionKey:NSLocalizedString(@"Failed to open the document.", nil), NSLocalizedRecoverySuggestionErrorKey:detail}];
+    }
+    
+    return nil;
+}
+
+@end
+
+#endif /* SHOULD_COMPILE_LOOKIN_SERVER */