fix make getting MIME type information is not case-sensitive #5114 (#…

…5115)

examples/http/UPPER.TXT

@@ -0,0 +1 @@
+HELLO WORLD!

src/protocol/mime_type.cc

@@ -18,6 +18,8 @@
 
 #include "swoole_mime_type.h"
 
+#include <algorithm>
+
 namespace swoole {
 namespace mime_type {
 
@@ -389,7 +391,9 @@ static std::unordered_map<std::string, std::string> map_(
 static const std::string octet_stream("application/octet-stream");
 
 static std::string get_suffix(const std::string &filename) {
-    return std::string(filename).substr(filename.find_last_of('.') + 1);
+    std::string suffix = std::string(filename).substr(filename.find_last_of('.') + 1);
+    std::transform(suffix.begin(), suffix.end(), suffix.begin(), ::tolower);
+    return suffix;
 }
 
 const std::unordered_map<std::string, std::string> &list() {

tests/swoole_http_server/bug_5114.phpt

@@ -0,0 +1,51 @@
+--TEST--
+swoole_http_server: bug #5114
+--SKIPIF--
+<?php require __DIR__ . '/../include/skipif.inc'; ?>
+--FILE--
+<?php
+require __DIR__ . '/../include/bootstrap.php';
+
+use Swoole\Http\Server;
+use Swoole\Http\Request;
+use Swoole\Http\Response;
+
+$pm = new SwooleTest\ProcessManager;
+$pm->parentFunc = function () use ($pm) {
+    Swoole\Coroutine\run(function () use ($pm) {
+        $response = httpRequest("http://127.0.0.1:{$pm->getFreePort()}/http/UPPER.TXT");
+        Assert::same($response['statusCode'], 200);
+        Assert::same($response['headers']['content-type'], 'text/plain');
+        Assert::same($response['body'], "HELLO WORLD!\n");
+
+        $response = httpRequest("http://127.0.0.1:{$pm->getFreePort()}/http/test.txt");
+        Assert::same($response['statusCode'], 200);
+        Assert::same($response['headers']['content-type'], 'text/plain');
+        Assert::same($response['body'], "hello world!\n");
+    });
+    echo "DONE\n";
+    $pm->kill();
+};
+
+$pm->childFunc = function () use ($pm) {
+    $http = new Server('127.0.0.1', $pm->getFreePort(), SWOOLE_BASE);
+    $http->set([
+        'log_file' => '/dev/null',
+        'open_http2_protocol' => true,
+        'enable_static_handler' => true,
+        'document_root' => dirname(dirname(__DIR__)) . '/examples/',
+        'static_handler_locations' => ['/static', '/']
+    ]);
+    $http->on('workerStart', function () use ($pm) {
+        $pm->wakeup();
+    });
+    $http->on('request', function (Request $request, Response $response) use ($http) {
+        $response->end('hello world');
+    });
+    $http->start();
+};
+$pm->childFirst();
+$pm->run();
+?>
+--EXPECT--
+DONE