aptos

Dapp 开发者集成OpenBlock内嵌dappsdk，OpenBlock内部通过iframe加载Dapp url，Dapp使用OpenBlock Wallet Provider(window.obaptos) OpenBlock钱包交互通信

提示

1. Dapp使用全局变量window.obaptos 为钱包provider

2. OpenBlock会在DApp加载完毕之后给Dapp发送一条消息，Dapp可以根据此消息来判断宿主应用是否为OpenBlock再加载innerdappsdk：

      // openblock side:
      dappPageIframe.onload = () => {
          dappPageIframe.contentWindow?.postMessage(
            {
              from: "openblock-content-integration",
              target: 'dapp-inpage-integration',
              value: 'dapploaded',
            },
            "*"
          );
        };

      // dapp side:
      window.addEventListener(
        'message',
        event => {
          if (event.data.target === 'dapp-inpage-integration' && event.data.from === 'openblock-content-integration') {
            // fom openblock wallet
            return;
          }
        },
        false
      );

Wallet Provider Methods

connect

    response:
    {
        publicKey: string,// prefix 0x
        address: string,
    }
    const provider = window.openblock.obaptos;
    const account = await provider.connect();
    console.log(account);

account

    response:
    {
        publicKey: string,// prefix 0x
        address: string,
    }
    const provider = window.openblock.obaptos;
    const account = await provider.account();
    console.log(account);

network

    response:
    {
        api: string,// aptos node_url 
        name: string, // only support mainnet
        chainId: number, // 1
    }
    const provider = window.openblock.obaptos;
    const network = await provider.network();
    console.log(network);

disconnect

    response: <boolean>
    const provider = window.openblock.obaptos;
    const result = await provider.disconnect();
    console.log(result);

isConnected

    response: <boolean>
    const provider = window.openblock.obaptos;
    const result = await provider.isConnected();
    console.log(result);

signAndSubmitTransaction

    request : Types.EntryFunctionPayload
    response:
    {
        hash: string, //prefix 0x
    }
    const provider = window.openblock.obaptos;
    const payload = {
            type: 'entry_function_payload',
            function: '0x1::managed_coin::register',
            arguments: [],
            type_arguments: [
            '0xe4497a32bf4a9fd5601b27661aa0b933a923191bf403bd08669ab2468d43b379::move_coin::MoveCoin',
            ],
        };
    const result = await provider.signAndSubmitTransaction(payload);
    console.log(result);

signMessage

    request : SignMessagePayload
    {
        address?: boolean; // Should we include the address of the account in the message
        application?: boolean; // Should we include the domain of the dApp
        chainId?: boolean; // Should we include the current chain id the wallet is connected to
        message: string; // The message to be signed and displayed to the user
        nonce: string; // A nonce the dApp should generate
    }
    response: SignMessageResponse
    {
        address?: string;
        application?: string;
        chainId?: number;
        fullMessage: string; // The message that was generated to sign
        message: string; // The message passed in by the user
        nonce: string,
        prefix: string, // Should always be APTOS
        signature: string //prefix 0x
    }
    const provider = window.openblock.obaptos;
    const signMessagePayload = {
        address: true,
        application: true,
        chainId: true,
        message: 'hello world!',
        nonce: 888,
    };
    const signMessageResponse = await provider.signMessage(signMessagePayload);
    console.log(result);

onAccountChange

    const handleAccountChange = async (account) => {
        if (account === undefined) {
          return;
        }
        /* account :
            {   publicKey: string,// prefix 0x
                address: string,
            }
        */
    };
    await provider.onAccountChange(handleAccountChange);

onNetworkChange

    const handleNetworkChange = (network) => {
        /* network :
            {
                api: string,// aptos node_url 
                name: string, // only support mainnet
                chainId: number, // 1
            }
        */
      };
    await provider.onNetworkChange(handleNetworkChange);

Source Code

inner-dappsdk.js

const DAPP_INPAGE = 'dapp-inpage-integration'
const DAPP_CONTENT = 'openblock-content-integration'
const APTOS_REQUEST_AUTH = 'aptos_requestAccounts'
const APTOS_WALLET_PROVIDER = 'obaptos'
const guid = () => {
  function S4 () {
    return (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1)
  }
  return S4() + S4() + S4() + S4() + S4() + S4() + S4() + S4()
}
class openBlockInpageProvider {
  constructor (walletProvider) {
    console.log(`start initialize ${walletProvider} provider`)
    this.walletProvider = walletProvider
    this.callBackList = {}
    this.eventListener = {}
    this.isOpenBlock = true
    this.connect = this.connect.bind(this)
    this.account = this.account.bind(this)
    this.network = this.network.bind(this)
    this.disconnect = this.disconnect.bind(this)
    this.isConnected = this.isConnected.bind(this)
    this.requestId = 1
    this.signAndSubmitTransaction = this.signAndSubmitTransaction.bind(this)
    this.signMessage = this.signMessage.bind(this)
    this.onAccountChange = this.onAccountChange.bind(this)
    this.onNetworkChange = this.onNetworkChange.bind(this)
  }

  async account () {
    const res = await this.request({ method: 'aptos_accounts' })
    return res
  }

  async connect () {
    let res = await this._hookRequest('aptos_accounts')
    if (res?.publicKey) {
      res.status = 200
      res.isConnected = true
      return new Promise(resolve => resolve(res))
    }
    res = this.request({ method: APTOS_REQUEST_AUTH })
    return res
  }

  async disconnect () {
    return true
  }

  async isConnected () {
    const res = await this._hookRequest('aptos_accounts')
    if (res?.address && res?.publicKey) {
      return true
    }
    return false
  }

  async network () {
    const res = await this._hookRequest('aptos_network')
    return res
  }

  async signAndSubmitTransaction (params) {
    const result = await this.request({
      method: 'aptos_sendTransaction',
      params
    })
    return { hash: result }
  }
  async signMessage (params) {
    const res = await this.request({ method: 'aptos_sign', params })
    res.signature = res.signature.slice(2)
    return res
  }

  onAccountChange (cbk) {
    return new Promise(async resolve => {
      const res = await this._hookRequest('aptos_accounts')
      cbk(res)
      this.on('onAccountChange', cbk)
      resolve()
    })
  }

  onNetworkChange (cbk) {
    return new Promise(async resolve => {
      this.on('onNetworkChange', cbk)
      const res = await this._hookRequest('aptos_network')
      cbk(res)
      resolve()
    })
  }

  on (event, callback) {
    if (typeof event !== 'string' || typeof callback !== 'function') {
      return
    }
    if (this.eventListener[event] && this.eventListener[event].length > 5) {
      return
    } else if (this.eventListener[event]) {
      this.eventListener[event].push(callback)
      this.eventListener[event] = Array.from(new Set(this.eventListener[event]))
    } else if (!this.eventListener[event]) {
      this.eventListener = {
        ...this.eventListener,
        [event]: [callback]
      }
    }
    this._registerEvent(event)
  }

  _handleNormalMethod (mark, event) {
    if (event.data.value.data?.result) {
      this.callBackList[mark.id]?.['resolve'](event.data.value.data?.result)
    }
    if (event.data.value.data?.error) {
      this.callBackList[mark.id]?.['reject'](event.data.value.data?.error)
    }
    delete this.callBackList[mark.id]
  }
  _handleEventMethod (mark, event) {
    let eventName = event.data?.value?.data?.mark?.eventName
    let params = event.data?.value?.data?.params
    if (eventName) {
      const fireList = this.eventListener[eventName]
      if (!fireList) return
      fireList.forEach(func => {
        if (eventName === 'chainChanged') {
          this.chainId = params
          this.networkVersion = Number(params)
        }
        func(params)
      })
    }
  }

  _hookRequest (paramsObj) {
    return new Promise((resolve, reject) => {
      const _guid = guid()

      if (typeof paramsObj === 'string') {
        paramsObj = {
          method: paramsObj
        }
      }
      
      paramsObj = {
        ...paramsObj,
        provider: this.walletProvider,
        mark: {
          id: _guid,
          method: paramsObj.method,
          type: 'call_method'
        }
      }

      window.parent.postMessage(
        { from: DAPP_INPAGE, target: DAPP_CONTENT, value: paramsObj },
        '*'
      )

      this.callBackList[_guid] = {
        resolve,
        reject
      }
    })
  }

  _registerEvent (event) {
    let value = {
      mark: {
        eventName: event,
        type: 'register_event'
      },
      eventName: event
    }
    console.log('0.registerEvent', event, value)
    window.postMessage({ from: DAPP_INPAGE, target: DAPP_CONTENT, value }, '*')
  }
}

function initializeProvider () {
  if (!window[APTOS_WALLET_PROVIDER]) {
    let provider = new openBlockInpageProvider(APTOS_WALLET_PROVIDER)
    provider = new Proxy(provider, {
      deleteProperty: () => true
    })
    delete window[APTOS_WALLET_PROVIDER]
    Object.defineProperty(window, APTOS_WALLET_PROVIDER, {
      value: provider,
      configurable: false,
      writable: false
    })
  }
}

if (typeof window !== 'undefined') {
  initializeProvider()
}