Added a CSV handler in the core handlers

src/Httpful/Bootstrap.php

@@ -82,6 +82,7 @@ public static function registerHandlers()
             \Httpful\Mime::JSON => new \Httpful\Handlers\JsonHandler(),
             \Httpful\Mime::XML  => new \Httpful\Handlers\XmlHandler(),
             \Httpful\Mime::FORM => new \Httpful\Handlers\FormHandler(),
+            \Httpful\Mime::CSV  => new \Httpful\Handlers\CsvHandler(),
         );
 
         foreach ($handlers as $mime => $handler) {
@@ -90,4 +91,4 @@ public static function registerHandlers()
 
         self::$registered = true;
     }
-}
+}

src/Httpful/Handlers/CsvHandler.php

@@ -0,0 +1,50 @@
+<?php
+/**
+ * Mime Type: text/csv
+ * @author Raja Kapur <[email protected]>
+ */
+
+namespace Httpful\Handlers;
+
+class CsvHandler extends MimeHandlerAdapter
+{
+    /**
+     * @param string $body
+     * @return mixed
+     */
+    public function parse($body)
+    {
+        if (empty($body))
+            return null;
+
+        $parsed = array();
+        $fp = fopen('data://text/plain;base64,' . base64_encode($body), 'r');
+        while (($r = fgetcsv($fp)) !== FALSE) {
+            $parsed[] = $r;
+        }
+
+        if (empty($parsed))
+            throw new \Exception("Unable to parse response as CSV");
+        return $parsed;
+    }
+
+    /**
+     * @param mixed $payload
+     * @return string
+     */
+    public function serialize($payload)
+    {
+        $fp = fopen('php://temp/maxmemory:'. (6*1024*1024), 'r+');
+        $i = 0;
+        foreach ($payload as $fields) {
+            if($i++ == 0) {
+                fputcsv($fp, array_keys($fields));
+            }
+            fputcsv($fp, $fields);
+        }
+        rewind($fp);
+        $data = stream_get_contents($fp);
+        fclose($fp);
+        return $data;
+    }
+}

src/Httpful/Mime.php

@@ -16,6 +16,7 @@ class Mime
     const JS    = 'text/javascript';
     const HTML  = 'text/html';
     const YAML  = 'application/x-yaml';
+    const CSV   = 'text/csv';
 
     /**
      * Map short name for a mime type
@@ -32,6 +33,7 @@ class Mime
         'js'        => self::JS,
         'javascript'=> self::JS,
         'yaml'      => self::YAML,
+        'csv'       => self::CSV,
     );
 
     /**
@@ -53,4 +55,4 @@ public static function supportsMimeType($short_name)
     {
         return array_key_exists($short_name, self::$mimes);
     }
-}
+}

tests/Httpful/HttpfulTest.php

@@ -30,6 +30,15 @@ class HttpfulTest extends \PHPUnit_Framework_TestCase
 Connection: keep-alive
 Transfer-Encoding: chunked";
     const SAMPLE_JSON_RESPONSE = '{"key":"value","object":{"key":"value"},"array":[1,2,3,4]}';
+    const SAMPLE_CSV_HEADER =
+"HTTP/1.1 200 OK
+Content-Type: text/csv
+Connection: keep-alive
+Transfer-Encoding: chunked";
+    const SAMPLE_CSV_RESPONSE = 
+"Key1,Key2
+Value1,Value2
+\"40.0\",\"Forty\"";
     const SAMPLE_XML_RESPONSE = '<stdClass><arrayProp><array><k1><myClass><intProp>2</intProp></myClass></k1></array></arrayProp><stringProp>a string</stringProp><boolProp>TRUE</boolProp></stdClass>';
     const SAMPLE_XML_HEADER =
 "HTTP/1.1 200 OK
@@ -75,16 +84,19 @@ function testShortMime()
         $this->assertEquals(Mime::JSON,  Mime::getFullMime('json'));
         $this->assertEquals(Mime::XML,   Mime::getFullMime('xml'));
         $this->assertEquals(Mime::HTML,  Mime::getFullMime('html'));
+        $this->assertEquals(Mime::CSV,  Mime::getFullMime('csv'));
 
         // Valid long ones
         $this->assertEquals(Mime::JSON, Mime::getFullMime(Mime::JSON));
         $this->assertEquals(Mime::XML,  Mime::getFullMime(Mime::XML));
         $this->assertEquals(Mime::HTML, Mime::getFullMime(Mime::HTML));
+        $this->assertEquals(Mime::CSV, Mime::getFullMime(Mime::CSV));
 
         // No false positives
         $this->assertNotEquals(Mime::XML,  Mime::getFullMime(Mime::HTML));
         $this->assertNotEquals(Mime::JSON, Mime::getFullMime(Mime::XML));
         $this->assertNotEquals(Mime::HTML, Mime::getFullMime(Mime::JSON));
+        $this->assertNotEquals(Mime::XML, Mime::getFullMime(Mime::CSV));
     }
 
     function testSettingStrictSsl()
@@ -121,6 +133,11 @@ function testSendsAndExpectsType()
             ->sendsAndExpectsType('application/x-www-form-urlencoded');
         $this->assertEquals(Mime::FORM, $r->expected_type);
         $this->assertEquals(Mime::FORM, $r->content_type);
+
+        $r = Request::init()
+            ->sendsAndExpectsType(Mime::CSV);
+        $this->assertEquals(Mime::CSV, $r->expected_type);
+        $this->assertEquals(Mime::CSV, $r->content_type);
     }
 
     function testIni()
@@ -194,6 +211,17 @@ function testXMLResponseParse()
         $this->assertEquals("a string", (string) $string);
     }
 
+    function testCsvResponseParse()
+    {
+        $req = Request::init()->sendsAndExpects(Mime::CSV);
+        $response = new Response(self::SAMPLE_CSV_RESPONSE, self::SAMPLE_CSV_HEADER, $req);
+
+        $this->assertEquals("Key1", $response->body[0][0]);
+        $this->assertEquals("Value1", $response->body[1][0]);
+        $this->assertInternalType('string', $response->body[2][0]);
+        $this->assertEquals("40.0", $response->body[2][0]);
+    }
+
     function testParsingContentTypeCharset()
     {
         $req = Request::init()->sendsAndExpects(Mime::JSON);