Dave Hrycyszyn
77 lines
1.9 KiB
Go
77 lines
1.9 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"github.com/btcsuite/btcutil/base58"
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"github.com/gorilla/websocket"
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"io/ioutil"
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"strings"
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)
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func getSelfAddress(conn *websocket.Conn) string {
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selfAddressRequest, err := json.Marshal(map[string]string{"type": "selfAddress"})
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if err != nil {
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panic(err)
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}
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if err = conn.WriteMessage(websocket.TextMessage, []byte(selfAddressRequest)); err != nil {
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panic(err)
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}
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responseJSON := make(map[string]interface{})
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err = conn.ReadJSON(&responseJSON)
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if err != nil {
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panic(err)
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}
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return responseJSON["address"].(string)
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}
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func main() {
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uri := "ws://localhost:1977"
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conn, _, err := websocket.DefaultDialer.Dial(uri, nil)
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if err != nil {
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panic(err)
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}
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defer conn.Close()
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selfAddress := getSelfAddress(conn)
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fmt.Printf("our address is: %v\n", selfAddress)
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// we receive our address in string format of OUR_PUB_KEY @ OUR_GATE_PUB_KEY
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// both keys are 32 bytes and we need to encode them as binary without the '@' sign
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splitAddress := strings.Split(selfAddress, "@");
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decodedDestination := base58.Decode(splitAddress[0])
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decodedGateway := base58.Decode(splitAddress[1])
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read_data, err := ioutil.ReadFile("dummy_file")
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if err != nil {
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panic(err)
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}
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payload := append(decodedDestination[:], append(decodedGateway[:], read_data[:]...)...)
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fmt.Printf("sending content of 'dummy file' over the mix network...\n")
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if err = conn.WriteMessage(websocket.BinaryMessage, payload); err != nil {
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panic(err)
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}
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sendConfirmationJSON := make(map[string]interface{})
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err = conn.ReadJSON(&sendConfirmationJSON)
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if err != nil {
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panic(err)
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}
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if sendConfirmationJSON["type"].(string) != "send" {
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panic("invalid send confirmation")
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}
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fmt.Printf("waiting to receive a message from the mix network...\n")
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_, receivedMessage, err := conn.ReadMessage()
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if err != nil {
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panic(err)
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}
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fmt.Printf("writing the file back to the disk!\n")
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ioutil.WriteFile("received_file", receivedMessage, 0644)
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}
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