Starting to integrate BIP70 payment protocol into new send flow.

src/js/services/paypro.service.js

@@ -0,0 +1,76 @@
+'use strict';
+
+angular
+  .module('copayApp.services')
+  .factory('payproService', payproService);
+
+function payproService(gettextCatalog, $http,  $log, ongoingProcess, platformInfo, profileService) {
+
+  var service = {
+    getPayProDetails: getPayProDetails,
+    getPayProDetailsViaHttp: getPayProDetailsViaHttp,
+    broadcastBchTx: broadcastBchTx
+  };
+
+  return service;
+
+  function getPayProDetails(uri, coin, cb, disableLoader) {
+    if (!cb) cb = function() {};
+
+    var wallet = profileService.getWallets({
+      onlyComplete: true,
+      coin: coin
+    })[0];
+
+    if (!wallet) return cb();
+
+    if (platformInfo.isChromeApp) {
+      return cb(gettextCatalog.getString('Payment Protocol not supported on Chrome App'));
+    }
+
+    $log.debug('Fetch PayPro Request...', uri);
+
+    if (!disableLoader) ongoingProcess.set('fetchingPayPro', true);
+
+    wallet.fetchPayPro({
+      payProUrl: uri,
+    }, function(err, paypro) {
+      if (!disableLoader) ongoingProcess.set('fetchingPayPro', false);
+      if (err) return cb(gettextCatalog.getString('Could Not Fetch Payment: Check if it is still valid'));
+      else if (!paypro.verified) {
+        $log.warn('Failed to verify payment protocol signatures');
+        return cb(gettextCatalog.getString('Payment Protocol Invalid'));
+      }
+      return cb(null, paypro);
+    });
+  }
+
+  function getPayProDetailsViaHttp(uri, cb) {
+    var config = {
+      headers: {'Accept': 'application/payment-request'}
+    };
+    $http.get(uri, config).then(function onGetPayProDetailsSuccess(response) {
+      return cb(null, response.data);
+    }, function onGetPayProDetailsError(error) {
+      return cb(error, null);
+    });
+  }
+
+  function broadcastBchTx(signedTxp, cb) {
+    var config = {
+      headers: {'Content-Type': 'application/payment'}
+    };
+
+    var data = {
+      currency: 'BCH',
+      transactions: [signedTxp.raw]
+    };
+
+    $http.post(signedTxp.payProUrl, data, config).then(function(response) {
+      signedTxp.response = response.data;
+      return cb(null, signedTxp);
+    }, function(error) {
+      return cb(error.data, null);
+    });
+  }
+}