Feature/encryption at rest

[kutakmir]

Checklist

• [x] Tick to sign-off your agreement to the Developer Certificate of Origin (DCO) 1.1
• [x] Added tests for code changes or test/build only changes
• [x] Updated the change log file (CHANGES.md|CHANGELOG.md) or test/build only changes
• [x] Completed the PR template below:

Description

Integrated OTFToolBoxCore Updated Nullability - it was missing at some places and giving warnings in Xcode. _bulk_get is now a POST request - this change is in compliance with the CouchDB REST API.

Schema & API Changes

CDTDatastore

/// Added the directory parameter. Directory is for setting the URL of database we want to protect.

• (nullable instancetype)initWithManager:(nonnull CDTDatastoreManager )manager database:(nonnull TD_Database )database directory: (nonnull NSString *)directory;

/// This function will help to set FILE Protection manually by users. /// @param type Its FileProtection Type Enum provided by Apple, user can pass any Protection case whatever they need to set on there files. -(void)encryptFile: (NSFileProtectionType _Nonnull)type;

/// This function will help to set Protection level. Set a mode according to your need. /// @param mode - It's a ENUM value that users can set from predefined enum cases. -(void)setProtectionLevel: (OTFProtectionLevel)level;

/// This funtion will return the current applied file protection policy on files.

• (NSFileProtectionType _Nullable)appliedProtectionPolicyOnDb;

/**

• Set the delegate for handling customisation of the NSURLSession
• used during replication.
• This allows the setting of specific options on the NSURLSessionConfiguration
• to control the replication - e.g. replication only when on Wifi would be
• achieved by setting the NSURLSessionConfiguration's allowsCellularAccess
• attribute to 'NO'.
• @see CDTNSURLSessionConfigurationDelegate */

@property (nullable, nonatomic, weak) NSObject *sessionConfigDelegate;

pushReplicationWithTarget method now contains the replicator parameter. That's so that

Security and Privacy

Added the encryption at rest protections levels.

Testing

Added tests:

/* This test function will be used to test end point _local/{docId} . We're assuming to get an response in return of this api. and not an error. @param completionHandler A completion hanlder to return the response we got from the API call. / -(void)testEndPointLocal:(ReplicatorTestCompletionHandler) completionHandler;

/* This function is created to be used in Test Cases. It simply tests the _revs_diff API call and returns it's response in completion block. @param completionHandler A completion handler to return the response we got from the API call. / -(void)testRevsDiff: (ReplicatorTestCompletionHandler) completionHandler;

/* This function is created to be used in Test Cases. It simply tests the _bulk_docs API call and returns it's response in completion block. @param completionHandler A completion handler to return the response we got from the API call. / -(void)testUploadBulkDocs: (ReplicatorTestCompletionHandler) completionHandler;

/* This test function will be used to test end point _local/{docId} . We're assuming to get an response in return of this api. and not an error. @param completionHandler A completion hanlder to return the response we got from the API call. / -(void)testBulkGet:(NSDictionary* _Nullable)requestBody handler:(ReplicatorTestCompletionHandler) completionHandler;

So that we can test all the components more in detail.

Monitoring and Logging

• "No change"