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omarsyomarsy
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feat: github oracle
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‎examples/gno.land/r/demo/teritori/gh/CMD.md

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gnokey maketx addpkg \
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-deposit="1ugnot" \
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-gas-fee="1ugnot" \
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-gas-wanted="5000000" \
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-broadcast="true" \
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-remote="https://rpc.gno.land:443" \
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-chainid="portal-loop" \
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-pkgdir="." \
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-pkgpath="gno.land/r/mikecito/gh_test_4" \
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mykey2
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gnokey maketx call \
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-gas-fee="1ugnot" \
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-gas-wanted="5000000" \
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-broadcast="true" \
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-remote="https://rpc.gno.land:443" \
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-chainid="portal-loop" \
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-pkgpath="gno.land/r/mikecito/gh_test_4" \
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-func="AdminSetOracleAddr" \
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-args="g1d46t4el0dduffs5j56t2razaeyvnmkxlduduuw" \
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mykey2
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gnokey maketx call \
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-gas-fee="1ugnot" \
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-gas-wanted="5000000" \
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-broadcast="true" \
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-remote="https://rpc.gno.land:443" \
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-chainid="portal-loop" \
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-pkgpath="gno.land/r/mikecito/gh_test_4" \
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-func="OracleUpsertAccount" \
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-args="15034695" \
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-args="omarsy" \
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-args="6h057" \
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-args="user" \
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mykey2
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gnokey query "vm/qeval" -data='gno.land/r/mikecito/gh_test_4
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AccountByID("15034695")' -remote="https://rpc.gno.land:443"
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gnokey query "vm/qeval" -data='gno.land/r/mikecito/gh_test_4
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RenderAccount("g14mfv59k38r8k5vkevpu0lpqlqra0e9trwp3d32")' -remote="https://rpc.gno.land:443"
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gnokey query "vm/qeval" -data='gno.land/r/mikecito/gh_test_4
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Render()' -remote="https://rpc.gno.land:443"

‎examples/gno.land/r/demo/teritori/gh/account.gno

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package gh
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import (
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"errors"
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"std"
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"gno.land/p/demo/avl"
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)
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// Account represents a GitHub user account or organization.
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type Account struct {
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id string
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login string
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name string
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kind string
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}
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func (a Account) ID() string { return a.id }
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func (a Account) Name() string { return a.name }
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func (a Account) Kind() string { return a.kind }
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func (a Account) URL() string { return "https://github.com/" + a.login }
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func (a Account) IsUser() bool { return a.kind == UserAccount }
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func (a Account) IsOrg() bool { return a.kind == OrgAccount }
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// TODO: func (a Account) RepoByID() Repo ...
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func (a Account) Validate() error {
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if a.id == "" {
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return errors.New("empty id")
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}
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if a.login == "" {
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return errors.New("empty login")
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}
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if a.kind == "" || (a.kind != UserAccount && a.kind != OrgAccount) {
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return errors.New("empty kind")
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}
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if a.name == "" {
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return errors.New("empty name")
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}
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// TODO: validate
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return nil
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}
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func (a Account) Render() string {
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return `{ "id": "` + a.id + `", "login": "` + a.login + `", "name": "` + a.name + `", "kind": "` + a.kind + `" }`
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}
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func (a Account) String() string {
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// XXX: better idea?
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return a.URL()
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}
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const (
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UserAccount string = "user"
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OrgAccount string = "org"
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)
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func AccountByID(id string) *Account {
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res, ok := accounts.Get(id)
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if !ok {
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return nil
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}
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return res.(*Account)
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}

‎examples/gno.land/r/demo/teritori/gh/admin.gno

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package gh
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import (
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"std"
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)
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var(
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adminAddr std.Address = "g1u7y667z64x2h7vc6fmpcprgey4ck233jaww9zq"
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)
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func assertIsAdmin() {
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if std.GetOrigCaller() != adminAddr {
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panic("restricted area")
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}
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}
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func setAdminAddress(address std.Address) {
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adminAddr = address
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}
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func SetAdminAddress(address std.Address) {
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assertIsAdmin()
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setAdminAddress(address)
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}

‎examples/gno.land/r/demo/teritori/gh/admin_test.gno

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package gh
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import (
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"std"
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"testing"
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"gno.land/p/demo/avl"
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"gno.land/p/demo/testutils"
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)
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func TestAssertIsAdmin(t *testing.T) {
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adminAddr = "g1test1234"
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randomuser := testutils.TestAddress("g1unknown_player")
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defer func() {
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if r := recover(); r != nil {
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}
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}()
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std.TestSetOrigCaller(randomuser)
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assertIsAdmin()
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t.Fatalf("should fail because not admin")
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}
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‎examples/gno.land/r/demo/teritori/gh/gno.mod

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module gno.land/r/demo/teritori/gh
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require (
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gno.land/p/demo/avl v0.0.0-latest
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)
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‎examples/gno.land/r/demo/teritori/gh/oracle.gno

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package gh
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import (
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"std"
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"strings"
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"time"
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"gno.land/p/demo/avl"
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)
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var (
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accounts avl.Tree // id -> Account
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lastUpdateTime time.Time // used by the bot to only upload the diff
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oracleAddr std.Address
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)
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func OracleLastUpdated() time.Time { return lastUpdateTime }
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func OracleUpsertAccount(id, login, name, kind string) {
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assertIsOracle()
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lastUpdateTime = time.Now()
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// get or create
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account := &Account{}
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res, ok := accounts.Get(id)
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if ok {
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account = res.(*Account)
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} else {
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account.id = id
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}
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// update fields
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account.name = name
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account.kind = kind
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account.login = login
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if err := account.Validate(); err != nil {
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panic(err)
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}
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// save
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accounts.Set(id, account)
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}
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func AdminSetOracleAddr(new std.Address) {
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assertIsAdmin()
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oracleAddr = new
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}
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func assertIsOracle() {
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if std.GetOrigCaller() != oracleAddr {
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panic("restricted area")
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}
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}

‎examples/gno.land/r/demo/teritori/gh/oracle_test.gno

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package gh
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import (
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"std"
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"testing"
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"time"
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"gno.land/p/demo/avl"
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"gno.land/p/demo/testutils"
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)
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func TestOracleUpsertUserIsNotOracle(t *testing.T) {
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oracleAddr = "g1test1234"
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var randomuser = "g1unknown_player"
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user := testutils.TestAddress("user")
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defer func() {
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if r := recover(); r != nil {
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}
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}()
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OracleUpsertAccount("acountID", "villaquiranm","john doe","user")
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t.Fatalf("should fail because not admin")
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}
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func TestOracleUpsertUserOk(t *testing.T) {
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oracleAddr = "g1random"
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if accounts.Size() != 0 {
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t.Fatalf("Accounts is not empty")
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}
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now := time.Now()
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std.TestSetOrigCaller(oracleAddr)
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var randomuser = "g1unknown_player"
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OracleUpsertAccount("acountID", "villaquiranm","john doe","user")
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if accounts.Size() != 1 {
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t.Fatalf("User was not created")
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}
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OracleUpsertAccount("acountID", "villaquiranm","john doe","user")
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if accounts.Size() != 1 {
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t.Fatalf("User was created more than once")
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}
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if OracleLastUpdated().Unix() < now.Unix() {
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t.Fatalf("OracleLastUpdated was not changed")
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}
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}
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func TestAssertIsOracle(t *testing.T) {
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std.TestSetOrigCaller(adminAddr)
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AdminSetOracleAddr("g1random123")
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defer func() {
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if r := recover(); r != nil {
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}
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}()
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assertIsOracle()
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t.Fatalf("should fail because user is not oracle")
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}

‎examples/gno.land/r/demo/teritori/gh/public.gno

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package gh
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import (
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"crypto/ed25519"
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"encoding/hex"
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"std"
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"gno.land/p/demo/avl"
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)
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var (
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addressToAccount avl.Tree // address -> Account
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guardianPublicKey string // guardian public (maybe should an array)
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)
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func init() {
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addressToAccount = avl.Tree{}
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setAdminAddress(std.GetOrigCaller())
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}
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// Todo maybe we should gave multi guardian
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func SetGuardianPublicKey(publicKey string) {
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assertIsAdmin()
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guardianPublicKey = publicKey
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}
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func LinkAccount(accountID string, address std.Address, signature string) {
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if !verifySignature(accountID, address, signature) {
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panic("signature verification failed")
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}
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account := AccountByID(accountID)
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if account == nil {
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panic("account not found")
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}
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addressToAccount.Set(address.String(), account)
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}
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func RenderAccount(address std.Address) string {
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account, ok := addressToAccount.Get(address.String())
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if !ok {
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panic("account not found")
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}
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return account.(*Account).Render()
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}
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func Render(address string) string {
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if address != "" {
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return RenderAccount(std.Address(address))
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}
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str := "["
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addressToAccount.Iterate("", "", func(key string, value interface{}) bool {
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account := value.(*Account)
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str += account.Render()
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str += ","
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return false
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})
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str += "]"
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return str
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}
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func verifySignature(accountID string, address std.Address, signature string) bool {
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publicKey, err := hex.DecodeString(guardianPublicKey)
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if err != nil {
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panic("invalid guardian public key")
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}
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sign, err := hex.DecodeString(signature)
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if err != nil {
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panic("invalid signature")
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}
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return ed25519.Verify(publicKey, []byte(accountID+" "+address.String()), sign)
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}

‎examples/gno.land/r/demo/teritori/gh/public_test.gno

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package gh
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import (
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"std"
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"testing"
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"gno.land/p/demo/avl"
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"gno.land/p/demo/testutils"
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)
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// private key 023742D9CFA2824BCA670868E11B00125625F9AF735CA42D9305ADD030F84515
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func TestLinkAccount(t *testing.T) {
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adminAddr = "g1test1234"
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user := testutils.TestAddress("user")
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admin := testutils.TestAddress("admin")
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std.TestSetOrigCaller(admin)
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setAdminAddress(admin)
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AdminSetOracleAddr(admin)
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SetGuardianPublicKey("E921E29BC2F358F60B5F4C31999355309C6CCEB38204D10117557A39B5F59762")
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OracleUpsertAccount("123", "user", "user", UserAccount)
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LinkAccount("123", user, "C78A534203008326ACA3C9D3D4338F81B9547002789B79CCAC3514784B780B078126B7AB705954C5CB36A5B171B97B0501EDE74BFDACE3D3096AA0D65B816007")
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accountInPublic, ok := addressToAccount.Get(user.String())
26+
if !ok {
27+
t.Fatalf("account not found")
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}
29+
account := AccountByID("123")
30+
if accountInPublic != account {
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t.Fatalf("account is not same")
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}
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}

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