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<?php |
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namespace WebServCo\Framework; |
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use WebServCo\Framework\Http; |
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use WebServCo\Framework\Exceptions\ApplicationException; |
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final class CurlBrowser implements |
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\WebServCo\Framework\Interfaces\HttpBrowserInterface |
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{ |
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protected $debug = true; |
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protected $requestHeaders = []; |
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protected $method; |
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protected $postData; |
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protected $curl; |
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protected $debugStderr; |
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protected $debugOutput; |
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protected $debugInfo; |
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protected $response; |
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protected $logger; |
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public function __construct($logDir, \WebServCo\Framework\Interfaces\RequestInterface $requestInterface) |
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{ |
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$this->logger = new \WebServCo\Framework\FileLogger( |
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'CurlBrowser', |
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$logDir, |
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$requestInterface |
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); |
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$this->logger->clear(); |
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} |
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public function setDebug(bool $debug) |
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{ |
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$this->debug = $debug; |
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} |
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public function setRequestHeaders(array $requestHeaders) |
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{ |
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$this->requestHeaders = $requestHeaders; |
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} |
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public function get($url) |
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{ |
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$this->setMethod(Http::METHOD_GET); |
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return $this->retrieve($url); |
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} |
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public function post($url, $postData = []) |
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{ |
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$this->setMethod(Http::METHOD_POST); |
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$this->setPostData($postData); |
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return $this->retrieve($url); |
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} |
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protected function setMethod($method) |
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{ |
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if (!in_array($method, Http::getMethods())) { |
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throw new ApplicationException('Unsupported method'); |
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} |
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$this->method = $method; |
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return true; |
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} |
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protected function setPostData(array $postData) |
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{ |
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$this->postData = $postData; |
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} |
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protected function debugInit() |
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{ |
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if ($this->debug) { |
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ob_start(); |
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$this->debugStderr = fopen('php://output', 'w'); |
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return true; |
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} |
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return false; |
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} |
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protected function debugDo() |
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{ |
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if ($this->debug) { |
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//curl_setopt($this->curl, CURLINFO_HEADER_OUT, 1); /* verbose not working if this is enabled */ |
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curl_setopt($this->curl, CURLOPT_VERBOSE, 1); |
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curl_setopt($this->curl, CURLOPT_STDERR, $this->debugStderr); |
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return false; |
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} |
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return false; |
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} |
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protected function debugFinish() |
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{ |
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if ($this->debug) { |
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fclose($this->debugStderr); |
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$this->debugOutput = ob_get_clean(); |
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$this->logger->debug('CURL INFO:', $this->debugInfo); |
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$this->logger->debug('CURL VERBOSE:', $this->debugOutput); |
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$this->logger->debug('CURL RESPONSE:', $this->response); |
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return true; |
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} |
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return false; |
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} |
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protected function getHttpCode() |
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{ |
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return isset($this->debugInfo['http_code']) ? $this->debugInfo['http_code']: false; |
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} |
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protected function parseResponseHeaders($headerString) |
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{ |
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$headers = []; |
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$lines = explode("\r\n", $headerString); |
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foreach ($lines as $index => $line) { |
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if (0 === $index) { |
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continue; /* we'll get the status code elsewhere */ |
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} |
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list($key, $value) = explode(': ', $line); |
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$headers[$key] = $value; |
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} |
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return $headers; |
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} |
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protected function parseRequestHeaders($headers) |
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{ |
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$data = []; |
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foreach ($headers as $k => $v) { |
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$data[] = sprintf('%s: %s', $k, $v); |
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} |
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return $data; |
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} |
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protected function retrieve($url) |
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{ |
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$this->debugInit(); |
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$this->curl = curl_init(); |
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curl_setopt_array( |
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$this->curl, |
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[ |
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CURLOPT_RETURNTRANSFER => true, /* return instead of outputting */ |
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CURLOPT_URL => $url, |
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CURLOPT_HEADER => true, /* include the header in the output */ |
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CURLOPT_FOLLOWLOCATION => true /* follow redirects */ |
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] |
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); |
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if (!empty($this->requestHeaders)) { |
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curl_setopt( |
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$this->curl, |
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CURLOPT_HTTPHEADER, |
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$this->parseRequestHeaders($this->requestHeaders) |
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); |
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} |
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$this->debugDo(); |
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if ($this->method == Http::METHOD_POST) { |
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curl_setopt($this->curl, CURLOPT_POST, true); |
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if (!empty($this->postData)) { |
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curl_setopt($this->curl, CURLOPT_POSTFIELDS, $this->postData); |
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} |
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} |
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$this->response = curl_exec($this->curl); |
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if (false === $this->response) { |
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throw new ApplicationException(curl_error($this->curl)); |
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} |
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$this->debugInfo = curl_getinfo($this->curl); |
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$httpCode = $this->getHttpCode(); |
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curl_close($this->curl); |
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/** |
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* For redirects, the response will contain evey header/body pair. |
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* The last header/body will be at the end of the response. |
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*/ |
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$responseParts = explode("\r\n\r\n", $this->response); |
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$body = array_pop($responseParts); |
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$headerString = array_pop($responseParts); |
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$body = trim($body); |
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$headers = $this->parseResponseHeaders($headerString); |
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$this->debugFinish(); |
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return new \WebServCo\Framework\HttpResponse( |
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$body, |
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$httpCode, |
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$headers |
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); |
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} |
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} |
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