From b1573fc6a779dbf20bbcd9216c70e2c211b4f8fe Mon Sep 17 00:00:00 2001
From: Leonid Logvinov <logvinov.leon@gmail.com>
Date: Thu, 29 Jun 2017 12:20:41 -0700
Subject: Implement getProxyAuthorizedContractAddressesAsync

---
 src/contract_wrappers/exchange_wrapper.ts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'src/contract_wrappers/exchange_wrapper.ts')

diff --git a/src/contract_wrappers/exchange_wrapper.ts b/src/contract_wrappers/exchange_wrapper.ts
index c4dfb4318..1dd83b763 100644
--- a/src/contract_wrappers/exchange_wrapper.ts
+++ b/src/contract_wrappers/exchange_wrapper.ts
@@ -622,6 +622,18 @@ export class ExchangeWrapper extends ContractWrapper {
             return exchangeAddresses;
         }
     }
+    /**
+     * Returns the ethereum addresses of all available exchange contracts
+     * on the network that the provided web3 instance is connected to
+     * that are currently authorized on the Proxy contract
+     * @return  The ethereum addresses of all available and authorized exchange contract.
+     */
+    public async getProxyAuthorizedContractAddressesAsync(): Promise<string[]> {
+        const exchangeContractAddresses = await this.getAvailableContractAddressesAsync();
+        const proxyAuthorizedExchangeContractAddresses = _.filter(
+            exchangeContractAddresses, this._isExchangeContractAddressProxyAuthrizedAsync.bind(this));
+        return proxyAuthorizedExchangeContractAddresses;
+    }
     /**
      * Stops watching for all exchange events
      */
@@ -631,6 +643,10 @@ export class ExchangeWrapper extends ContractWrapper {
         await Promise.all(stopWatchingPromises);
         this._exchangeLogEventEmitters = [];
     }
+    private async _isExchangeContractAddressProxyAuthrizedAsync(exchangeContractAddress: string): Promise<boolean> {
+        const isAuthorized = await this._proxyWrapper.isAuthorizedAsync(exchangeContractAddress);
+        return isAuthorized;
+    }
     private _wrapEventEmitter(event: ContractEventObj): ContractEventEmitter {
         const zeroExEvent = {
             watch: event.watch.bind(event),
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