p2p/dnsdisc: add implementation of EIP-1459 (#20094)

This adds an implementation of node discovery via DNS TXT records to the
go-ethereum library. The implementation doesn't match EIP-1459 exactly,
the main difference being that this implementation uses separate merkle
trees for tree links and ENRs. The EIP will be updated to match p2p/dnsdisc.

To maintain DNS trees, cmd/devp2p provides a frontend for the p2p/dnsdisc
library. The new 'dns' subcommands can be used to create, sign and deploy DNS
discovery trees.

vendor/github.com/cloudflare/cloudflare-go/access_application.go

@@ -0,0 +1,180 @@
+package cloudflare
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/url"
+	"strconv"
+	"time"
+
+	"github.com/pkg/errors"
+)
+
+// AccessApplication represents an Access application.
+type AccessApplication struct {
+	ID              string     `json:"id,omitempty"`
+	CreatedAt       *time.Time `json:"created_at,omitempty"`
+	UpdatedAt       *time.Time `json:"updated_at,omitempty"`
+	AUD             string     `json:"aud,omitempty"`
+	Name            string     `json:"name"`
+	Domain          string     `json:"domain"`
+	SessionDuration string     `json:"session_duration,omitempty"`
+}
+
+// AccessApplicationListResponse represents the response from the list
+// access applications endpoint.
+type AccessApplicationListResponse struct {
+	Result []AccessApplication `json:"result"`
+	Response
+	ResultInfo `json:"result_info"`
+}
+
+// AccessApplicationDetailResponse is the API response, containing a single
+// access application.
+type AccessApplicationDetailResponse struct {
+	Success  bool              `json:"success"`
+	Errors   []string          `json:"errors"`
+	Messages []string          `json:"messages"`
+	Result   AccessApplication `json:"result"`
+}
+
+// AccessApplications returns all applications within a zone.
+//
+// API reference: https://api.cloudflare.com/#access-applications-list-access-applications
+func (api *API) AccessApplications(zoneID string, pageOpts PaginationOptions) ([]AccessApplication, ResultInfo, error) {
+	v := url.Values{}
+	if pageOpts.PerPage > 0 {
+		v.Set("per_page", strconv.Itoa(pageOpts.PerPage))
+	}
+	if pageOpts.Page > 0 {
+		v.Set("page", strconv.Itoa(pageOpts.Page))
+	}
+
+	uri := "/zones/" + zoneID + "/access/apps"
+	if len(v) > 0 {
+		uri = uri + "?" + v.Encode()
+	}
+
+	res, err := api.makeRequest("GET", uri, nil)
+	if err != nil {
+		return []AccessApplication{}, ResultInfo{}, errors.Wrap(err, errMakeRequestError)
+	}
+
+	var accessApplicationListResponse AccessApplicationListResponse
+	err = json.Unmarshal(res, &accessApplicationListResponse)
+	if err != nil {
+		return []AccessApplication{}, ResultInfo{}, errors.Wrap(err, errUnmarshalError)
+	}
+
+	return accessApplicationListResponse.Result, accessApplicationListResponse.ResultInfo, nil
+}
+
+// AccessApplication returns a single application based on the
+// application ID.
+//
+// API reference: https://api.cloudflare.com/#access-applications-access-applications-details
+func (api *API) AccessApplication(zoneID, applicationID string) (AccessApplication, error) {
+	uri := fmt.Sprintf(
+		"/zones/%s/access/apps/%s",
+		zoneID,
+		applicationID,
+	)
+
+	res, err := api.makeRequest("GET", uri, nil)
+	if err != nil {
+		return AccessApplication{}, errors.Wrap(err, errMakeRequestError)
+	}
+
+	var accessApplicationDetailResponse AccessApplicationDetailResponse
+	err = json.Unmarshal(res, &accessApplicationDetailResponse)
+	if err != nil {
+		return AccessApplication{}, errors.Wrap(err, errUnmarshalError)
+	}
+
+	return accessApplicationDetailResponse.Result, nil
+}
+
+// CreateAccessApplication creates a new access application.
+//
+// API reference: https://api.cloudflare.com/#access-applications-create-access-application
+func (api *API) CreateAccessApplication(zoneID string, accessApplication AccessApplication) (AccessApplication, error) {
+	uri := "/zones/" + zoneID + "/access/apps"
+
+	res, err := api.makeRequest("POST", uri, accessApplication)
+	if err != nil {
+		return AccessApplication{}, errors.Wrap(err, errMakeRequestError)
+	}
+
+	var accessApplicationDetailResponse AccessApplicationDetailResponse
+	err = json.Unmarshal(res, &accessApplicationDetailResponse)
+	if err != nil {
+		return AccessApplication{}, errors.Wrap(err, errUnmarshalError)
+	}
+
+	return accessApplicationDetailResponse.Result, nil
+}
+
+// UpdateAccessApplication updates an existing access application.
+//
+// API reference: https://api.cloudflare.com/#access-applications-update-access-application
+func (api *API) UpdateAccessApplication(zoneID string, accessApplication AccessApplication) (AccessApplication, error) {
+	if accessApplication.ID == "" {
+		return AccessApplication{}, errors.Errorf("access application ID cannot be empty")
+	}
+
+	uri := fmt.Sprintf(
+		"/zones/%s/access/apps/%s",
+		zoneID,
+		accessApplication.ID,
+	)
+
+	res, err := api.makeRequest("PUT", uri, accessApplication)
+	if err != nil {
+		return AccessApplication{}, errors.Wrap(err, errMakeRequestError)
+	}
+
+	var accessApplicationDetailResponse AccessApplicationDetailResponse
+	err = json.Unmarshal(res, &accessApplicationDetailResponse)
+	if err != nil {
+		return AccessApplication{}, errors.Wrap(err, errUnmarshalError)
+	}
+
+	return accessApplicationDetailResponse.Result, nil
+}
+
+// DeleteAccessApplication deletes an access application.
+//
+// API reference: https://api.cloudflare.com/#access-applications-delete-access-application
+func (api *API) DeleteAccessApplication(zoneID, applicationID string) error {
+	uri := fmt.Sprintf(
+		"/zones/%s/access/apps/%s",
+		zoneID,
+		applicationID,
+	)
+
+	_, err := api.makeRequest("DELETE", uri, nil)
+	if err != nil {
+		return errors.Wrap(err, errMakeRequestError)
+	}
+
+	return nil
+}
+
+// RevokeAccessApplicationTokens revokes tokens associated with an
+// access application.
+//
+// API reference: https://api.cloudflare.com/#access-applications-revoke-access-tokens
+func (api *API) RevokeAccessApplicationTokens(zoneID, applicationID string) error {
+	uri := fmt.Sprintf(
+		"/zones/%s/access/apps/%s/revoke-tokens",
+		zoneID,
+		applicationID,
+	)
+
+	_, err := api.makeRequest("POST", uri, nil)
+	if err != nil {
+		return errors.Wrap(err, errMakeRequestError)
+	}
+
+	return nil
+}