Add support for HTTP Continue headers

Continue response headers now don't break response parsing

Author: stevemiketa

src/VCR/Util/HttpUtil.php

@@ -61,7 +61,12 @@ public static function parseStatus($status)
  */
  public static function parseResponse($response)
  {
- list($rawHeader, $rawBody) = explode("\r\n\r\n", $response, 2);
+ if (strpos($response, 'HTTP/1.1 100 Continue') === 0) {
+ list($continueHeader, $rawHeader, $rawBody) = explode("\r\n\r\n", $response, 3);
+ }
+ else {
+ list($rawHeader, $rawBody) = explode("\r\n\r\n", $response, 2);
+ }
 
  // Parse headers and status.
  $headers = self::parseRawHeader($rawHeader);

tests/VCR/Util/HttpUtilTest.php

@@ -39,6 +39,41 @@ public function testParseResponseMultipleHeaders()
  $this->assertEquals($expectedHeaders, $headers);
  }
 
+ public function testParseContinuePlusResponse()
+ {
+ $raw = "HTTP/1.1 100 Continue\r\n\r\nHTTP/1.1 201 Created\r\nContent-Type: text/html\r\nDate: Fri, 19 Jun 2015 16:05:18 GMT\r\nVary: Accept-Encoding\r\nContent-Length: 0\r\n\r\n";
+ list($status, $headers, $body) = HttpUtil::parseResponse($raw);
+
+ $expectedHeaders = array(
+ 'Content-Type: text/html',
+ 'Date: Fri, 19 Jun 2015 16:05:18 GMT',
+ 'Vary: Accept-Encoding',
+ 'Content-Length: 0'
+ );
+ 
+ $this->assertEquals('HTTP/1.1 201 Created', $status);
+ $this->assertEquals(null, $body);
+ $this->assertEquals($expectedHeaders, $headers);
+ }
+
+ public function testParseContinuePlusResponseMultipleHeaders()
+ {
+ $raw = "HTTP/1.1 100 Continue\r\n\r\nHTTP/1.1 201 Created\r\nContent-Type: text/html\r\nDate: Fri, 19 Jun 2015 16:05:18 GMT\r\nVary: Accept, Accept-Language, Expect\r\nVary: Accept-Encoding\r\nContent-Length: 0\r\n\r\n";
+ list($status, $headers, $body) = HttpUtil::parseResponse($raw);
+ 
+ $expectedHeaders = array(
+ 'Content-Type: text/html',
+ 'Date: Fri, 19 Jun 2015 16:05:18 GMT',
+ 'Vary: Accept, Accept-Language, Expect',
+ 'Vary: Accept-Encoding',
+ 'Content-Length: 0'
+ );
+ 
+ $this->assertEquals('HTTP/1.1 201 Created', $status);
+ $this->assertEquals(null, $body);
+ $this->assertEquals($expectedHeaders, $headers);
+ }
+
  public function testParseHeadersBasic()
  {
  $inputArray = array(