RestKit RequestDescriptor Mappings

-(RKRequestDescriptor *)getMetricsRequestDescriptor

{

    RKObjectMapping *requestMapping = [RKObjectMapping requestMapping];

    [requestMapping addAttributeMappingsFromArray:@[@"Id", @"Type",@"tok", @"CmID"]];

    RKRequestDescriptor *requestDescriptor = [RKRequestDescriptor requestDescriptorWithMapping:requestMapping objectClass:[class_metrics_param class] rootKeyPath:nil method:RKRequestMethodPOST];

    return requestDescriptor;

}

RestKit ResonseDescriptor Mappings

-(RKResponseDescriptor *)getCompressorsResponseDescriptor

{

    

    RKObjectMapping *compressors_mapping = [RKObjectMapping mappingForClass:[class_compressors class]];

    [compressors_mapping addAttributeMappingsFromDictionary:@{

                                                                  @"ResponseCode":@"ResponseCode",

                                                                  @"ResponseType":@"ResponseType",

                                                                  @"ResponseMessage":@"ResponseMessage"

                                                                  }];

    

    RKObjectMapping *compressor_mapping = [RKObjectMapping mappingForClass:[class_compressor class]];

    [compressor_mapping addAttributeMappingsFromDictionary:@{

                                                             @"CmID":@"CmID"

                                                             }];

    

    

    RKObjectMapping *fault_alert_mapping = [RKObjectMapping mappingForClass:[class_fault_alerts class]];

    [fault_alert_mapping addAttributeMappingsFromDictionary:@{

                                                              @"Message":@"Message"

                                                              }];

    

    RKObjectMapping *service_due_alert_mapping = [RKObjectMapping mappingForClass:[class_service_due_alerts class]];

    [service_due_alert_mapping addAttributeMappingsFromDictionary:@{

                                                                    @"Type":@"Type"

                                                                    }];

    

    

    [compressor_mapping addPropertyMapping:[RKRelationshipMapping

                                            relationshipMappingFromKeyPath:@"FAlerts"

                                            toKeyPath:@"FAlerts"

                                            withMapping:fault_alert_mapping]];

    

    [compressor_mapping addPropertyMapping:[RKRelationshipMapping

                                            relationshipMappingFromKeyPath:@"SDueAlerts"

                                            toKeyPath:@"SAlerts"

                                            withMapping:service_due_alert_mapping]];

    

    [compressors_mapping addPropertyMapping:[RKRelationshipMapping

                                                 relationshipMappingFromKeyPath:@"Cms"

                                                 toKeyPath:@"Cms"

                                                 withMapping:compressor_mapping]];

    

    NSIndexSet *statusCodes = RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful);

    RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:compressors_mapping

                                                                                            method:RKRequestMethodGET

                                                                                       pathPattern:nil

                                                                                           keyPath:nil

                                                                                       statusCodes:statusCodes];

    

    return responseDescriptor;

}

Services For RestKit GET and POST

-(NSURLRequest *)createRequestWithURL:(NSString *)url

                               params:(NSDictionary *)params

                           HTTPMethod:(NSString *)HTTPMethod

{

    NSURL *URL = [[NSURL alloc] initWithString:kBaseURL];

    AFRKHTTPClient *client = [[AFRKHTTPClient alloc] initWithBaseURL:URL];

    

    NSMutableURLRequest *request = [client requestWithMethod:HTTPMethod path:url parameters:params];

    return request;

}

-(void)getObjectFromURL:(NSString *)url

             HTTPMethod:(NSString *)method

                 params:(NSDictionary *)params

             descriptor:(RKResponseDescriptor *)responseDescriptor

             onComplete:(void (^)(id _Nonnull))onCompleteHandler

                onError:(void (^)(NSError * _Nonnull))onErrorHandler

{

    NSURLRequest *request = [self createRequestWithURL:url params:params HTTPMethod:method];

    RKObjectRequestOperation *operation = [[RKObjectRequestOperation alloc]

                                           initWithRequest:request

                                           responseDescriptors:@[responseDescriptor]];

    

    [operation setCompletionBlockWithSuccess:^(RKObjectRequestOperation *operation,

                                                RKMappingResult *mappingResult) {

        if(onCompleteHandler)

        {

            onCompleteHandler((mappingResult.set.count > 1) ? mappingResult.set : mappingResult.firstObject);

        }

    } failure:^(RKObjectRequestOperation *operation, NSError *error) {

        if(onErrorHandler)

        {

            onErrorHandler(error);

        }

    }];

    

    NSOperationQueue *queue = [NSOperationQueue new];

    [queue addOperation:operation];

}

-(void)postObjectFromURL:(NSString *)baseURL

                    path:(NSString *)path

             classObject:(id)classObject

       requestDescriptor:(RKRequestDescriptor *)requestDescriptor

      responseDescriptor:(RKResponseDescriptor *)responseDescriptor

              onComplete:(void (^)(id _Nonnull))onCompleteHandler

                 onError:(void (^)(NSError * _Nonnull))onErrorHandler

{

    if(baseURL == nil || [baseURL isEqualToString:@""])

        baseURL = kBaseURL;

    

    RKObjectManager *manager = [RKObjectManager managerWithBaseURL:[NSURL URLWithString:baseURL]];

    [manager addRequestDescriptor:requestDescriptor];

    [manager addResponseDescriptor:responseDescriptor];

    

    [manager postObject:(classObject)

                   path:path parameters:nil

                success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {

        if(onCompleteHandler)

            onCompleteHandler((mappingResult.set.count > 1) ? mappingResult.set : mappingResult.firstObject);

    } failure:^(RKObjectRequestOperation *operation, NSError *error) {

        if(onErrorHandler)

            onErrorHandler(error);

    }];

}

RSA encryption between Java and PHP

This article shows you one way to get RSA encryption working between Java and PHP without any extra libraries or classes, you only need the openssl module activated on PHP side.

The goal is to encrypt a text with a public key in Java and send the code to PHP where it is decoded with the private key.

It took me two days and a lot of googling to figure this out, and I hope this will help others not to spend so much time on this topic.

1) Install and Configure PHP OpenSSL (Windows)

• php.ini: extension=php_openssl.dll
• Set environment variable  
  OPENSSL_CONF to C:\Programme\Apache2.2\php\extras\openssl\openssl.cnf
• Set environment variable  
  PATH to C:\Programme\Apache2.2\php

2) Generate a private keyfile with PHP

1 2 3

$keys = openssl_pkey_new(); $priv = openssl_pkey_get_private($keys); openssl_pkey_export_to_file($priv, 'private.pem');

3) Generate a public .der-file from the private keyfile with OpenSSL

• openssl rsa -in private.pem -pubout -outform DER -out public.der

4) Import the public key in Java

1 2 3 4 5 6 7 8 9 10

File pubKeyFile = new File("public.der"); DataInputStream dis = new DataInputStream(new FileInputStream(pubKeyFile)); byte[] keyBytes = new byte[(int) pubKeyFile.length()];   dis.readFully(keyBytes); dis.close();   X509EncodedKeySpec keySpec = new X509EncodedKeySpec(keyBytes); KeyFactory keyFactory = KeyFactory.getInstance("RSA"); RSAPublicKey publicKey = (RSAPublicKey)keyFactory.generatePublic(keySpec);

5) Encode the data in Java with the public key

1 2 3

Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1PADDING"); cipher.init(Cipher.ENCRYPT_MODE, publicKey); encrypted = cipher.doFinal(text.getBytes());

6) Decode the data with the private key in PHP

$fp = fopen(“private.pem”, “r”);
$privateKey = fread($fp, 8192);
fclose($fp);

$res = openssl_get_privatekey($privateKey);
openssl_private_decrypt($this->hex2bin($params[‘cipher’]), $decrypted, $res);

// $decrypted is the result

function hex2bin($hexdata) {
$bindata = “”;

for ($i = 0; $i < strlen($hexdata); $i += 2) { $bindata .= chr(hexdec(substr($hexdata, $i, 2))); } return $bindata; } [/sourcecode] 7) If you want to decrypt with the public key in PHP as well, you can generate a public.pem file with OpenSSL

• openssl rsa -in private.pem -out public.pem -outform PEM -puboutr

Original Post URL: https://schneimi.wordpress.com/2008/11/25/rsa-encryption-between-java-and-php/