feat: Waku v2 bridge

Issue #12610

vendor/github.com/status-im/status-go/services/wallet/thirdparty/fourbytegithub/client.go

@@ -0,0 +1,105 @@
+package fourbytegithub
+
+import (
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"regexp"
+	"strings"
+	"time"
+
+	"github.com/ethereum/go-ethereum/accounts/abi"
+	"github.com/status-im/status-go/services/wallet/thirdparty"
+)
+
+type Signature struct {
+	ID   int    `json:"id"`
+	Text string `json:"text_signature"`
+}
+
+type ByID []Signature
+
+func (s ByID) Len() int           { return len(s) }
+func (s ByID) Less(i, j int) bool { return s[i].ID > s[j].ID }
+func (s ByID) Swap(i, j int)      { s[i], s[j] = s[j], s[i] }
+
+type SignatureList struct {
+	Count   int         `json:"count"`
+	Results []Signature `json:"results"`
+}
+
+type Client struct {
+	Client *http.Client
+	URL    string
+}
+
+func NewClient() *Client {
+	return &Client{Client: &http.Client{Timeout: time.Minute}, URL: "https://raw.githubusercontent.com"}
+}
+
+func (c *Client) DoQuery(url string) (*http.Response, error) {
+	resp, err := c.Client.Get(url)
+
+	if err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
+
+func (c *Client) Run(data string) (*thirdparty.DataParsed, error) {
+	if len(data) < 10 || !strings.HasPrefix(data, "0x") {
+		return nil, errors.New("input is badly formatted")
+	}
+	methodSigData := data[2:10]
+	url := fmt.Sprintf("%s/ethereum-lists/4bytes/master/signatures/%s", c.URL, methodSigData)
+	resp, err := c.DoQuery(url)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+	signature := string(body)
+	rgx := regexp.MustCompile(`\((.*?)\)`)
+
+	id := fmt.Sprintf("0x%s", methodSigData)
+	name := strings.Split(signature, "(")[0]
+	rs := rgx.FindStringSubmatch(signature)
+	inputsMapString := make(map[string]string)
+
+	if len(rs[1]) > 0 {
+		inputs := make([]string, 0)
+		rawInputs := strings.Split(rs[1], ",")
+		for index, typ := range rawInputs {
+			if index == len(rawInputs)-1 && typ == "bytes" {
+				continue
+			}
+			inputs = append(inputs, fmt.Sprintf("{\"name\":\"%d\",\"type\":\"%s\"}", index, typ))
+		}
+
+		functionABI := fmt.Sprintf("[{\"constant\":true,\"inputs\":[%s],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\", \"name\": \"%s\"}], ", strings.Join(inputs, ","), name)
+		contractABI, err := abi.JSON(strings.NewReader(functionABI))
+		if err != nil {
+			return nil, err
+		}
+		method := contractABI.Methods[name]
+		inputsMap := make(map[string]interface{})
+		if err := method.Inputs.UnpackIntoMap(inputsMap, []byte(data[10:])); err != nil {
+			return nil, err
+		}
+		for key, value := range inputsMap {
+			inputsMapString[key] = fmt.Sprintf("%v", value)
+		}
+	}
+
+	return &thirdparty.DataParsed{
+		Name:      name,
+		ID:        id,
+		Signature: signature,
+		Inputs:    inputsMapString,
+	}, nil
+}