diff options
Diffstat (limited to 'plugins/Minify/extlib/minify/min_unit_tests/test_HTTP_Encoder.php')
| -rw-r--r-- | plugins/Minify/extlib/minify/min_unit_tests/test_HTTP_Encoder.php | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/plugins/Minify/extlib/minify/min_unit_tests/test_HTTP_Encoder.php b/plugins/Minify/extlib/minify/min_unit_tests/test_HTTP_Encoder.php new file mode 100644 index 000000000..9573e80e4 --- /dev/null +++ b/plugins/Minify/extlib/minify/min_unit_tests/test_HTTP_Encoder.php @@ -0,0 +1,260 @@ +<?php +require_once '_inc.php'; + +require_once 'HTTP/Encoder.php'; + +function test_HTTP_Encoder() +{ + global $thisDir; + + HTTP_Encoder::$encodeToIe6 = true; + $methodTests = array( + array( + 'ua' => 'Any browser' + ,'ae' => 'compress, x-gzip' + ,'exp' => array('gzip', 'x-gzip') + ,'desc' => 'recognize "x-gzip" as gzip' + ) + ,array( + 'ua' => 'Any browser' + ,'ae' => 'compress, x-gzip;q=0.5' + ,'exp' => array('gzip', 'x-gzip') + ,'desc' => 'gzip w/ non-zero q' + ) + ,array( + 'ua' => 'Any browser' + ,'ae' => 'compress, x-gzip;q=0' + ,'exp' => array('compress', 'compress') + ,'desc' => 'gzip w/ zero q' + ) + ,array( + 'ua' => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)' + ,'ae' => 'gzip, deflate' + ,'exp' => array('', '') + ,'desc' => 'IE6 w/o "enhanced security"' + ) + ,array( + 'ua' => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)' + ,'ae' => 'gzip, deflate' + ,'exp' => array('gzip', 'gzip') + ,'desc' => 'IE6 w/ "enhanced security"' + ) + ,array( + 'ua' => 'Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.01)' + ,'ae' => 'gzip, deflate' + ,'exp' => array('', '') + ,'desc' => 'IE5.5' + ) + ,array( + 'ua' => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; en) Opera 9.25' + ,'ae' => 'gzip,deflate' + ,'exp' => array('gzip', 'gzip') + ,'desc' => 'Opera identifying as IE6' + ) + ); + foreach ($methodTests as $test) { + $_SERVER['HTTP_USER_AGENT'] = $test['ua']; + $_SERVER['HTTP_ACCEPT_ENCODING'] = $test['ae']; + $exp = $test['exp']; + $ret = HTTP_Encoder::getAcceptedEncoding(); + $passed = assertTrue($exp == $ret, 'HTTP_Encoder : ' . $test['desc']); + + if (__FILE__ === realpath($_SERVER['SCRIPT_FILENAME'])) { + echo "\n--- AE | UA = {$test['ae']} | {$test['ua']}\n"; + echo "Expected = " . preg_replace('/\\s+/', ' ', var_export($exp, 1)) . "\n"; + echo "Returned = " . preg_replace('/\\s+/', ' ', var_export($ret, 1)) . "\n\n"; + } + } + HTTP_Encoder::$encodeToIe6 = false; + $methodTests = array( + array( + 'ua' => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)' + ,'ae' => 'gzip, deflate' + ,'exp' => array('', '') + ,'desc' => 'IE6 w/ "enhanced security"' + ) + ); + foreach ($methodTests as $test) { + $_SERVER['HTTP_USER_AGENT'] = $test['ua']; + $_SERVER['HTTP_ACCEPT_ENCODING'] = $test['ae']; + $exp = $test['exp']; + $ret = HTTP_Encoder::getAcceptedEncoding(); + $passed = assertTrue($exp == $ret, 'HTTP_Encoder : ' . $test['desc']); + + if (__FILE__ === realpath($_SERVER['SCRIPT_FILENAME'])) { + echo "\n--- AE | UA = {$test['ae']} | {$test['ua']}\n"; + echo "Expected = " . preg_replace('/\\s+/', ' ', var_export($exp, 1)) . "\n"; + echo "Returned = " . preg_replace('/\\s+/', ' ', var_export($ret, 1)) . "\n\n"; + } + } + + if (! function_exists('gzdeflate')) { + echo "!WARN: HTTP_Encoder : Zlib support is not present in PHP. Encoding cannot be performed/tested.\n"; + return; + } + + // test compression of varied content (HTML,JS, & CSS) + $variedContent = file_get_contents($thisDir . '/_test_files/html/before.html') + . file_get_contents($thisDir . '/_test_files/css/subsilver.css') + . file_get_contents($thisDir . '/_test_files/js/jquery-1.2.3.js'); + $variedLength = strlen($variedContent); + + $encodingTests = array( + array('method' => 'deflate', 'inv' => 'gzinflate', 'exp' => 32157) + ,array('method' => 'gzip', 'inv' => '_gzdecode', 'exp' => 32175) + ,array('method' => 'compress', 'inv' => 'gzuncompress', 'exp' => 32211) + ); + + foreach ($encodingTests as $test) { + $e = new HTTP_Encoder(array( + 'content' => $variedContent + ,'method' => $test['method'] + )); + $e->encode(9); + $ret = strlen($e->getContent()); + + // test uncompression + $roundTrip = @call_user_func($test['inv'], $e->getContent()); + $desc = "HTTP_Encoder : {$test['method']} : uncompress possible"; + $passed = assertTrue($variedContent == $roundTrip, $desc); + + // test expected compressed size + $desc = "HTTP_Encoder : {$test['method']} : compressed to " + . sprintf('%4.2f%% of original', $ret/$variedLength*100); + $passed = assertTrue(abs($ret - $test['exp']) < 100, $desc); + if (__FILE__ === realpath($_SERVER['SCRIPT_FILENAME'])) { + echo "\n--- {$test['method']}: expected bytes: " + , "{$test['exp']}. Returned: {$ret} " + , "(off by ". abs($ret - $test['exp']) . " bytes)\n\n"; + } + } + + $_SERVER['HTTP_ACCEPT_ENCODING'] = 'identity'; + $he = new HTTP_Encoder(array( + 'content' => 'Hello' + )); + $he->encode(); + $headers = $he->getHeaders(); + assertTrue(isset($headers['Vary']), 'HTTP_Encoder : Vary always sent'); +} + +test_HTTP_Encoder(); + +function _gzdecode($data) +{ + $filename = $error = ''; + return _phpman_gzdecode($data, $filename, $error); +} + +// http://www.php.net/manual/en/function.gzdecode.php#82930 +function _phpman_gzdecode($data, &$filename='', &$error='', $maxlength=null) +{ + $len = strlen($data); + if ($len < 18 || strcmp(substr($data,0,2),"\x1f\x8b")) { + $error = "Not in GZIP format."; + return null; // Not GZIP format (See RFC 1952) + } + $method = ord(substr($data,2,1)); // Compression method + $flags = ord(substr($data,3,1)); // Flags + if ($flags & 31 != $flags) { + $error = "Reserved bits not allowed."; + return null; + } + // NOTE: $mtime may be negative (PHP integer limitations) + $mtime = unpack("V", substr($data,4,4)); + $mtime = $mtime[1]; + $xfl = substr($data,8,1); + $os = substr($data,8,1); + $headerlen = 10; + $extralen = 0; + $extra = ""; + if ($flags & 4) { + // 2-byte length prefixed EXTRA data in header + if ($len - $headerlen - 2 < 8) { + return false; // invalid + } + $extralen = unpack("v",substr($data,8,2)); + $extralen = $extralen[1]; + if ($len - $headerlen - 2 - $extralen < 8) { + return false; // invalid + } + $extra = substr($data,10,$extralen); + $headerlen += 2 + $extralen; + } + $filenamelen = 0; + $filename = ""; + if ($flags & 8) { + // C-style string + if ($len - $headerlen - 1 < 8) { + return false; // invalid + } + $filenamelen = strpos(substr($data,$headerlen),chr(0)); + if ($filenamelen === false || $len - $headerlen - $filenamelen - 1 < 8) { + return false; // invalid + } + $filename = substr($data,$headerlen,$filenamelen); + $headerlen += $filenamelen + 1; + } + $commentlen = 0; + $comment = ""; + if ($flags & 16) { + // C-style string COMMENT data in header + if ($len - $headerlen - 1 < 8) { + return false; // invalid + } + $commentlen = strpos(substr($data,$headerlen),chr(0)); + if ($commentlen === false || $len - $headerlen - $commentlen - 1 < 8) { + return false; // Invalid header format + } + $comment = substr($data,$headerlen,$commentlen); + $headerlen += $commentlen + 1; + } + $headercrc = ""; + if ($flags & 2) { + // 2-bytes (lowest order) of CRC32 on header present + if ($len - $headerlen - 2 < 8) { + return false; // invalid + } + $calccrc = crc32(substr($data,0,$headerlen)) & 0xffff; + $headercrc = unpack("v", substr($data,$headerlen,2)); + $headercrc = $headercrc[1]; + if ($headercrc != $calccrc) { + $error = "Header checksum failed."; + return false; // Bad header CRC + } + $headerlen += 2; + } + // GZIP FOOTER + $datacrc = unpack("V",substr($data,-8,4)); + $datacrc = sprintf('%u',$datacrc[1] & 0xFFFFFFFF); + $isize = unpack("V",substr($data,-4)); + $isize = $isize[1]; + // decompression: + $bodylen = $len-$headerlen-8; + if ($bodylen < 1) { + // IMPLEMENTATION BUG! + return null; + } + $body = substr($data,$headerlen,$bodylen); + $data = ""; + if ($bodylen > 0) { + switch ($method) { + case 8: + // Currently the only supported compression method: + $data = gzinflate($body,$maxlength); + break; + default: + $error = "Unknown compression method."; + return false; + } + } // zero-byte body content is allowed + // Verifiy CRC32 + $crc = sprintf("%u",crc32($data)); + $crcOK = $crc == $datacrc; + $lenOK = $isize == strlen($data); + if (!$lenOK || !$crcOK) { + $error = ( $lenOK ? '' : 'Length check FAILED. ') . ( $crcOK ? '' : 'Checksum FAILED.'); + return false; + } + return $data; +}
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