From 2e11cb55bf12d1667998e11b2d2fcbd905ce3099 Mon Sep 17 00:00:00 2001
From: Martial Saunois <saunois.martial@gmail.com>
Date: Tue, 8 Mar 2016 17:39:48 +0100
Subject: [PATCH] Fix #6 : Throw a DuplicateTorrentException when Transmission
 returns this error

---
 src/DuplicateTorrentException.php | 61 +++++++++++++++++++++++++++++++
 src/RpcClient.php                 | 23 ++++++++++--
 src/TransmissionException.php     | 21 +++++++++++
 tests/RpcClientTest.php           | 35 ++++++++++++++++++
 4 files changed, 136 insertions(+), 4 deletions(-)

diff --git a/src/DuplicateTorrentException.php b/src/DuplicateTorrentException.php
index 7bcf931..05947ee 100644
--- a/src/DuplicateTorrentException.php
+++ b/src/DuplicateTorrentException.php
@@ -4,5 +4,66 @@
 
 class DuplicateTorrentException extends \Exception
 {
+    /**
+     * @var int
+     */
+    private $torrentId;
 
+    /**
+     * @var string
+     */
+    private $torrentName;
+
+    /**
+     * @var string
+     */
+    private $torrentHashString;
+
+    /**
+     * @return int
+     */
+    public function getTorrentId()
+    {
+        return $this->torrentId;
+    }
+
+    /**
+     * @param int $torrentId
+     */
+    public function setTorrentId($torrentId)
+    {
+        $this->torrentId = $torrentId;
+    }
+
+    /**
+     * @return string
+     */
+    public function getTorrentName()
+    {
+        return $this->torrentName;
+    }
+
+    /**
+     * @param string $torrentName
+     */
+    public function setTorrentName($torrentName)
+    {
+        $this->torrentName = $torrentName;
+    }
+
+    /**
+     * @return string
+     */
+    public function getTorrentHashString()
+    {
+        return $this->torrentHashString;
+    }
+
+    /**
+     * @param string $torrentHashString
+     */
+    public function setTorrentHashString($torrentHashString)
+    {
+        $this->torrentHashString = $torrentHashString;
+    }
 }
diff --git a/src/RpcClient.php b/src/RpcClient.php
index e2962f2..8d8ceb4 100644
--- a/src/RpcClient.php
+++ b/src/RpcClient.php
@@ -215,10 +215,24 @@ public function torrentAdd($sessionId, array $argumentsWithValues)
             ));
         }
 
-        $response = $this->sendRequest($sessionId, $this->buildRequestBody(
-            'torrent-add',
-            $argumentsWithValues
-        ));
+        try {
+            $response = $this->sendRequest($sessionId, $this->buildRequestBody(
+                'torrent-add',
+                $argumentsWithValues
+            ));
+        } catch (TransmissionException $e) {
+            if ($e->getResult() === 'duplicate torrent') {
+                $responseArguments = $e->getArguments();
+                $duplicateTorrentException = new DuplicateTorrentException();
+                $duplicateTorrentException->setTorrentId($responseArguments['torrent-duplicate']['id']);
+                $duplicateTorrentException->setTorrentName($responseArguments['torrent-duplicate']['name']);
+                $duplicateTorrentException->setTorrentHashString($responseArguments['torrent-duplicate']['hashString']);
+
+                throw $duplicateTorrentException;
+            }
+
+            throw $e;
+        }
 
         return $response['arguments']['torrent-added'];
     }
@@ -567,6 +581,7 @@ private function sendRequest($sessionId, $requestBody)
         if ($responseBody['result'] !== 'success') {
             $e = new TransmissionException('The Transmission RPC API returned an error: ' . $responseBody['result']);
             $e->setResult($responseBody['result']);
+            $e->setArguments($responseBody['arguments']);
 
             if (!is_null($this->logger)) {
                 $this->logger->error(
diff --git a/src/TransmissionException.php b/src/TransmissionException.php
index 80f2493..31f6a62 100644
--- a/src/TransmissionException.php
+++ b/src/TransmissionException.php
@@ -9,6 +9,11 @@ class TransmissionException extends \Exception
      */
     private $result;
 
+    /**
+     * @var array
+     */
+    private $arguments;
+
     /**
      * @return string
      */
@@ -24,4 +29,20 @@ public function setResult($result)
     {
         $this->result = $result;
     }
+
+    /**
+     * @return array
+     */
+    public function getArguments()
+    {
+        return $this->arguments;
+    }
+
+    /**
+     * @param array $arguments
+     */
+    public function setArguments(array $arguments)
+    {
+        $this->arguments = $arguments;
+    }
 }
diff --git a/tests/RpcClientTest.php b/tests/RpcClientTest.php
index 90c2a86..f3b497d 100644
--- a/tests/RpcClientTest.php
+++ b/tests/RpcClientTest.php
@@ -4,6 +4,7 @@
 
 use GuzzleHttp\Exception\ClientException;
 use Martial\Transmission\API\CSRFException;
+use Martial\Transmission\API\DuplicateTorrentException;
 use Martial\Transmission\API\RpcClient;
 use Martial\Transmission\API\TransmissionException;
 use Mockery as m;
@@ -701,6 +702,40 @@ public function testTorrentAddShouldThrowAnExceptionWithAnInvalidSessionId()
         }
     }
 
+    public function testTorrentAddShouldThrowAnExceptionWithDuplicateTorrent()
+    {
+        $success = false;
+        $arguments = ['filename' => '/path/to/Fedora.torrent'];
+        $requestBody = '{"method":"torrent-add","arguments":{"filename":"/path/to/Fedora.torrent"}}';
+        $hashString = md5('Fedora.iso');
+        $torrentId = 42;
+        $torrentName = 'Fedora.iso';
+
+        $this
+            ->sendRequest($requestBody)
+            ->andReturn($this->guzzleResponse);
+
+        $this->setResponseBody(sprintf(
+            '{"arguments":{"torrent-duplicate":{"id":%d,"name":"%s","hashString":"%s"}},"result":"duplicate torrent"}',
+            $torrentId,
+            $torrentName,
+            $hashString
+        ));
+
+        try {
+            $this->rpcClient->torrentAdd($this->sessionId, $arguments);
+        } catch (DuplicateTorrentException $e) {
+            $this->assertSame($torrentId, $e->getTorrentId());
+            $this->assertSame($torrentName, $e->getTorrentName());
+            $this->assertSame($hashString, $e->getTorrentHashString());
+            $success = true;
+        }
+
+        if (!$success) {
+            $this->fail('DuplicateTorrentException was not thrown.');
+        }
+    }
+
     public function testTorrentRemoveWithLocalDataWithSuccess()
     {
         $requestBody = '{"method":"torrent-remove","arguments":{"ids":[42,1337],"delete-local-data":true}}';