github.com/deroproject/derosuite@v2.1.6-1.0.20200307070847-0f2e589c7a2b+incompatible/blockchain/rpcserver/iskeyimagespent.go (about)

     1  // Copyright 2017-2018 DERO Project. All rights reserved.
     2  // Use of this source code in any form is governed by RESEARCH license.
     3  // license can be found in the LICENSE file.
     4  // GPG: 0F39 E425 8C65 3947 702A  8234 08B2 0360 A03A 9DE8
     5  //
     6  //
     7  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
     8  // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     9  // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
    10  // THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    11  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    12  // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    13  // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
    14  // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
    15  // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    16  
    17  package rpcserver
    18  
    19  import "net/http"
    20  import "strings"
    21  
    22  //import "encoding/hex"
    23  import "encoding/json"
    24  
    25  import "github.com/deroproject/derosuite/crypto"
    26  import "github.com/deroproject/derosuite/structures"
    27  
    28  // we definitely need to clear up the MESS that has been created by the MONERO project
    29  // half of their APIs are json rpc and half are http
    30  // for compatibility reasons, we are implementing theirs ( however we are also providin a json rpc implementation)
    31  // we should DISCARD the http
    32  
    33  //  NOTE: we have currently not implemented the decode as json parameter
    34  //  it is however on the pending list
    35  
    36  type IsKeyImageSpent_Handler struct{}
    37  
    38  func iskeyimagespent(rw http.ResponseWriter, req *http.Request) {
    39  	decoder := json.NewDecoder(req.Body)
    40  	var p structures.Is_Key_Image_Spent_Params
    41  	var result structures.Is_Key_Image_Spent_Result
    42  	err := decoder.Decode(&p)
    43  	if err != nil {
    44  		panic(err)
    45  	}
    46  	defer req.Body.Close()
    47  
    48  	for i := range p.Key_images {
    49  		hash := crypto.HashHexToHash(strings.TrimSpace(p.Key_images[i]))
    50  
    51  		// check in blockchain
    52  		if _, ok := chain.Read_KeyImage_Status(nil, hash); ok {
    53  			result.Spent_Status = append(result.Spent_Status, 1) // 1 mark means spent  in blockchain
    54  			continue
    55  		}
    56  
    57  		// check in pool
    58  		if chain.Mempool.Mempool_Keyimage_Spent(hash) {
    59  			result.Spent_Status = append(result.Spent_Status, 2) // 2 mark means spent  in pool
    60  			continue
    61  		}
    62  
    63  		result.Spent_Status = append(result.Spent_Status, 0) // 0 mark means unspent
    64  	}
    65  
    66  	result.Status = "OK"
    67  	//logger.Debugf("Request %+v", p)
    68  
    69  	encoder := json.NewEncoder(rw)
    70  	encoder.Encode(result)
    71  }