RpcServer::start() - Code Metrics - Inspection of "RBF transaction test" - Bit-Wasp/bitcoin-php - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#567)

by thomas

created 2017-11-25 16:38 UTC

RpcServer::start() C

↳ Parent: RpcServer

Complexity

Conditions	8
Paths	16

Size

Total Lines	42
Code Lines	27

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	8
eloc	27
nc	16
nop	0
dl	0
loc	42
rs	5.3846
c	0
b	0
f	0

<?php

namespace BitWasp\Bitcoin\RpcTest;


use BitWasp\Bitcoin\Network\NetworkInterface;
use BitWasp\Bitcoin\Script\ScriptInterface;
use BitWasp\Bitcoin\Transaction\Factory\TxBuilder;
use BitWasp\Bitcoin\Transaction\OutPoint;
use BitWasp\Bitcoin\Transaction\TransactionFactory;
use BitWasp\Bitcoin\Transaction\TransactionOutput;
use BitWasp\Bitcoin\Utxo\Utxo;
use BitWasp\Buffertools\Buffer;
use Nbobtc\Command\Command;
use Nbobtc\Http\Client;

class RpcServer
{
    const ERROR_STARTUP = -28;
    const ERROR_TX_MEMPOOL_CONFLICT = -26;

    /**
     * @var string
     */
    private $dataDir;

    /**
     * @var string
     */
    private $bitcoind;

    /**
     * @var NetworkInterface
     */
    private $network;

    /**
     * @var RpcCredential
     */
    private $credential;

    /**
     * @var Client
     */
    private $client;

    private $softforks = false;

    /**
     * RpcServer constructor.
     * @param $bitcoind
     * @param $dataDir
     * @param NetworkInterface $network
     * @param RpcCredential $credential
     */
    public function __construct($bitcoind, $dataDir, NetworkInterface $network, RpcCredential $credential)
    {
        $this->bitcoind = $bitcoind;
        $this->dataDir = $dataDir;
        $this->network = $network;
        $this->credential = $credential;
    }

    /**
     * @return string
     */
    private function getPidFile()
    {
        return "{$this->dataDir}/regtest/bitcoind.pid";
    }

    /**
     * @return string
     */
    private function getConfigFile()
    {
        return "{$this->dataDir}/bitcoin.conf";
    }

    /**
     * @param RpcCredential $rpcCredential
     */
    private function writeConfigToFile(RpcCredential $rpcCredential)
    {
        $fd = fopen($this->getConfigFile(), "w");
        if (!$fd) {
            throw new \RuntimeException("Failed to open bitcoin.conf for writing");
        }
        if (!fwrite($fd, $rpcCredential->getConfig())) {
            throw new \RuntimeException("Failed to write to bitcoin.conf");
        }
        fclose($fd);
    }

    /**
     * @return void
     */
    public function start()
    {
        if ($this->isRunning()) {
            return;
        }

        $this->writeConfigToFile($this->credential);
        $res = 0;
        $out = '';
        $result = exec(sprintf("%s -datadir=%s", $this->bitcoind, $this->dataDir), $out, $res);

        if ($res !== 0) {
            throw new \RuntimeException("Failed to start bitcoind: {$this->dataDir}\n");
        }

        $start = microtime(true);
        $limit = 10;
        $connected = false;

        $conn = $this->getClient();
        do {
            try {
                $result = json_decode($conn->sendCommand(new Command("getblockchaininfo"))->getBody()->getContents(), true);
                if ($result['error'] === null) {
                    $connected = true;
                } else {
                    if ($result['error']['code'] !== self::ERROR_STARTUP) {
                        throw new \RuntimeException("Unexpected error code during startup");
                    }

                    sleep(0.2);
                }

            } catch (\Exception $e) {
                sleep(0.2);
            }

            if (microtime(true) > $start + $limit) {
                throw new \RuntimeException("Timeout elapsed, never made connection to bitcoind");
            }
        } while (!$connected);
    }

    private function getClient() {
        $client = new \Nbobtc\Http\Client($this->credential->getDsn());
        $client->withDriver(new CurlDriver());
        return $client;
    }

    private function activateSoftforks()
    {
        if ($this->softforks) {
            return;
        }

        $chainInfo = $this->makeRpcRequest('getblockchaininfo');
        $bestHeight = $chainInfo['result']['blocks'];

        while($bestHeight < 150 || $chainInfo['result']['bip9_softforks']['segwit']['status'] !== 'active') {
            // ought to finish in 1!
            $this->makeRpcRequest("generate", [435]);
            $chainInfo = $this->makeRpcRequest('getblockchaininfo');
            $bestHeight = $chainInfo['result']['blocks'];
        }

        $this->softforks = true;
    }

    /**
     * @param int $value
     * @param ScriptInterface $script
     * @return Utxo
     */
    public function fundOutput($value, $script)
    {
        $this->activateSoftforks();

        $builder = new TxBuilder();
        $builder->output($value, $script);
        $hex = $builder->get()->getHex();

        $result = $this->makeRpcRequest('fundrawtransaction', [$hex, ['feeRate'=>0.0001]]);
        $unsigned = $result['result']['hex'];
        $result = $this->makeRpcRequest('signrawtransaction', [$unsigned]);
        $signedHex = $result['result']['hex'];
        $signed = TransactionFactory::fromHex($signedHex);

        $outIdx = -1;
        foreach ($signed->getOutputs() as $i => $output) {
            if ($output->getScript()->equals($script)) {
                $outIdx = $i;
            }
        }

        if ($outIdx === -1) {
            throw new \RuntimeException("Sanity check failed, should have found the output we funded");
        }

        $result = $this->makeRpcRequest('sendrawtransaction', [$signedHex]);
        $txid = $result['result'];
        $this->makeRpcRequest("generate", [1]);

        return new Utxo(new OutPoint(Buffer::hex($txid), $outIdx), new TransactionOutput($value, $script));
    }

    /**
     * @param string $src
     */
    private function recursiveDelete($src)
    {
        $dir = opendir($src);
        while(false !== ( $file = readdir($dir)) ) {
            if (( $file != '.' ) && ( $file != '..' )) {
                $full = $src . '/' . $file;
                if ( is_dir($full) ) {
                    $this->recursiveDelete($full);
                }
                else {
                    unlink($full);
                }
            }
        }
        closedir($dir);
        rmdir($src);
    }

    /**
     * @return void
     */
    public function destroy()
    {
        if ($this->isRunning()) {
            $this->request("stop");

            do {
                sleep(0.2);
            } while($this->isRunning());

            $this->recursiveDelete($this->dataDir);
        }
    }

    /**
     * @return bool
     */
    public function isRunning()
    {
        return file_exists($this->getPidFile());
    }

    /**
     * @return Client
     */
    public function makeClient()
    {
        if (!$this->isRunning()) {
            throw new \RuntimeException("No client, server not running");
        }

        if (null === $this->client) {
            $this->client = $this->getClient();
        }

        return $this->client;
    }

    /**
     * @param string $method
     * @param array $params
     * @return mixed
     */
    public function request($method, array $params = [])
    {
        $unsorted = $this->makeClient()->sendCommand(new Command($method, $params));
        $jsonResult = $unsorted->getBody()->getContents();
        $json = json_decode($jsonResult, true);
        if (false === $json) {
            throw new \RuntimeException("Invalid JSON from server");
        }
        return $json;
    }

    /**
     * @param string $method
     * @param array $params
     * @return mixed
     */
    public function makeRpcRequest($method, $params = [])
    {
        return $this->request($method, $params);
    }

}


1			<?php
2
3			namespace BitWasp\Bitcoin\RpcTest;
4
5
6			use BitWasp\Bitcoin\Network\NetworkInterface;
7			use BitWasp\Bitcoin\Script\ScriptInterface;
8			use BitWasp\Bitcoin\Transaction\Factory\TxBuilder;
9			use BitWasp\Bitcoin\Transaction\OutPoint;
10			use BitWasp\Bitcoin\Transaction\TransactionFactory;
11			use BitWasp\Bitcoin\Transaction\TransactionOutput;
12			use BitWasp\Bitcoin\Utxo\Utxo;
13			use BitWasp\Buffertools\Buffer;
14			use Nbobtc\Command\Command;
15			use Nbobtc\Http\Client;
16
17			class RpcServer
18			{
19			const ERROR_STARTUP = -28;
20			const ERROR_TX_MEMPOOL_CONFLICT = -26;
21
22			/**
23			* @var string
24			*/
25			private $dataDir;
26
27			/**
28			* @var string
29			*/
30			private $bitcoind;
31
32			/**
33			* @var NetworkInterface
34			*/
35			private $network;
36
37			/**
38			* @var RpcCredential
39			*/
40			private $credential;
41
42			/**
43			* @var Client
44			*/
45			private $client;
46
47			private $softforks = false;
48
49			/**
50			* RpcServer constructor.
51			* @param $bitcoind
52			* @param $dataDir
53			* @param NetworkInterface $network
54			* @param RpcCredential $credential
55			*/
56			public function __construct($bitcoind, $dataDir, NetworkInterface $network, RpcCredential $credential)
57			{
58			$this->bitcoind = $bitcoind;
59			$this->dataDir = $dataDir;
60			$this->network = $network;
61			$this->credential = $credential;
62			}
63
64			/**
65			* @return string
66			*/
67			private function getPidFile()
68			{
69			return "{$this->dataDir}/regtest/bitcoind.pid";
70			}
71
72			/**
73			* @return string
74			*/
75			private function getConfigFile()
76			{
77			return "{$this->dataDir}/bitcoin.conf";
78			}
79
80			/**
81			* @param RpcCredential $rpcCredential
82			*/
83			private function writeConfigToFile(RpcCredential $rpcCredential)
84			{
85			$fd = fopen($this->getConfigFile(), "w");
86			if (!$fd) {
87			throw new \RuntimeException("Failed to open bitcoin.conf for writing");
88			}
89			if (!fwrite($fd, $rpcCredential->getConfig())) {
90			throw new \RuntimeException("Failed to write to bitcoin.conf");
91			}
92			fclose($fd);
93			}
94
95			/**
96			* @return void
97			*/
98			public function start()
99			{
100			if ($this->isRunning()) {
101			return;
102			}
103
104			$this->writeConfigToFile($this->credential);
105			$res = 0;
106			$out = '';
107			$result = exec(sprintf("%s -datadir=%s", $this->bitcoind, $this->dataDir), $out, $res);
108
109			if ($res !== 0) {
110			throw new \RuntimeException("Failed to start bitcoind: {$this->dataDir}\n");
111			}
112
113			$start = microtime(true);
114			$limit = 10;
115			$connected = false;
116
117			$conn = $this->getClient();
118			do {
119			try {
120			$result = json_decode($conn->sendCommand(new Command("getblockchaininfo"))->getBody()->getContents(), true);
121			if ($result['error'] === null) {
122			$connected = true;
123			} else {
124			if ($result['error']['code'] !== self::ERROR_STARTUP) {
125			throw new \RuntimeException("Unexpected error code during startup");
126			}
127
128			sleep(0.2);
129			}
130
131			} catch (\Exception $e) {
132			sleep(0.2);
133			}
134
135			if (microtime(true) > $start + $limit) {
136			throw new \RuntimeException("Timeout elapsed, never made connection to bitcoind");
137			}
138			} while (!$connected);
139			}
140
141			private function getClient() {
142			$client = new \Nbobtc\Http\Client($this->credential->getDsn());
143			$client->withDriver(new CurlDriver());
144			return $client;
145			}
146
147			private function activateSoftforks()
148			{
149			if ($this->softforks) {
150			return;
151			}
152
153			$chainInfo = $this->makeRpcRequest('getblockchaininfo');
154			$bestHeight = $chainInfo['result']['blocks'];
155
156			while($bestHeight < 150 \|\| $chainInfo['result']['bip9_softforks']['segwit']['status'] !== 'active') {
157			// ought to finish in 1!
158			$this->makeRpcRequest("generate", [435]);
159			$chainInfo = $this->makeRpcRequest('getblockchaininfo');
160			$bestHeight = $chainInfo['result']['blocks'];
161			}
162
163			$this->softforks = true;
164			}
165
166			/**
167			* @param int $value
168			* @param ScriptInterface $script
169			* @return Utxo
170			*/
171			public function fundOutput($value, $script)
172			{
173			$this->activateSoftforks();
174
175			$builder = new TxBuilder();
176			$builder->output($value, $script);
177			$hex = $builder->get()->getHex();
178
179			$result = $this->makeRpcRequest('fundrawtransaction', [$hex, ['feeRate'=>0.0001]]);
180			$unsigned = $result['result']['hex'];
181			$result = $this->makeRpcRequest('signrawtransaction', [$unsigned]);
182			$signedHex = $result['result']['hex'];
183			$signed = TransactionFactory::fromHex($signedHex);
184
185			$outIdx = -1;
186			foreach ($signed->getOutputs() as $i => $output) {
187			if ($output->getScript()->equals($script)) {
188			$outIdx = $i;
189			}
190			}
191
192			if ($outIdx === -1) {
193			throw new \RuntimeException("Sanity check failed, should have found the output we funded");
194			}
195
196			$result = $this->makeRpcRequest('sendrawtransaction', [$signedHex]);
197			$txid = $result['result'];
198			$this->makeRpcRequest("generate", [1]);
199
200			return new Utxo(new OutPoint(Buffer::hex($txid), $outIdx), new TransactionOutput($value, $script));
201			}
202
203			/**
204			* @param string $src
205			*/
206			private function recursiveDelete($src)
207			{
208			$dir = opendir($src);
209			while(false !== ( $file = readdir($dir)) ) {
210			if (( $file != '.' ) && ( $file != '..' )) {
211			$full = $src . '/' . $file;
212			if ( is_dir($full) ) {
213			$this->recursiveDelete($full);
214			}
215			else {
216			unlink($full);
217			}
218			}
219			}
220			closedir($dir);
221			rmdir($src);
222			}
223
224			/**
225			* @return void
226			*/
227			public function destroy()
228			{
229			if ($this->isRunning()) {
230			$this->request("stop");
231
232			do {
233			sleep(0.2);
234			} while($this->isRunning());
235
236			$this->recursiveDelete($this->dataDir);
237			}
238			}
239
240			/**
241			* @return bool
242			*/
243			public function isRunning()
244			{
245			return file_exists($this->getPidFile());
246			}
247
248			/**
249			* @return Client
250			*/
251			public function makeClient()
252			{
253			if (!$this->isRunning()) {
254			throw new \RuntimeException("No client, server not running");
255			}
256
257			if (null === $this->client) {
258			$this->client = $this->getClient();
259			}
260
261			return $this->client;
262			}
263
264			/**
265			* @param string $method
266			* @param array $params
267			* @return mixed
268			*/
269			public function request($method, array $params = [])
270			{
271			$unsorted = $this->makeClient()->sendCommand(new Command($method, $params));
272			$jsonResult = $unsorted->getBody()->getContents();
273			$json = json_decode($jsonResult, true);
274			if (false === $json) {
275			throw new \RuntimeException("Invalid JSON from server");
276			}
277			return $json;
278			}
279
280			/**
281			* @param string $method
282			* @param array $params
283			* @return mixed
284			*/
285			public function makeRpcRequest($method, $params = [])
286			{
287			return $this->request($method, $params);
288			}
289
290			}
291

Bit-Wasp / bitcoin-php

Pull Request — master (#567)

RpcServer::start() C

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