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Added HTTP server class to stdlib and an example server written in 100% pure Fun. (0.37.28)

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This commit is contained in:
Johannes Findeisen 2025-12-28 21:21:34 +01:00
commit 10b75596cd
6 changed files with 142 additions and 2 deletions
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2
CMakeLists.txt
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@ -1,5 +1,5 @@
cmake_minimum_required(VERSION 3.10)
project(fun VERSION 0.37.27 LANGUAGES C)
project(fun VERSION 0.37.28 LANGUAGES C)
set(CMAKE_C_STANDARD 99)
set(CMAKE_C_STANDARD_REQUIRED ON)

30
examples/class_test.fun Executable file
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@ -0,0 +1,30 @@
#!/usr/bin/env fun
/*
* This file is part of the Fun programming language.
* https://fun-lang.xyz/
*
* Copyright 2025 Johannes Findeisen <you@hanez.org>
* Licensed under the terms of the Apache-2.0 license.
* https://opensource.org/license/apache-2-0
*
* Added: 2025-12-28
*/
class Other(number val)
fun _construct(this, val)
this.v = val
class Test()
fun _construct(this)
val = Other(123)
this.a = val
print("a set")
t = Test()
print(t.a.v)
/* Expected output:
a set
123
*/

10
examples/data/htdocs/index.html Normal file
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@ -0,0 +1,10 @@
<!DOCTYPE html>
<html>
<head>
<title>Fun HTTP Server</title>
</head>
<body>
<h1>Welcome to the Fun HTTP Server!</h1>
<p>This page is served from <code>./examples/data/htdocs/index.html</code>.</p>
</body>
</html>

22
examples/extra/http_server.fun Executable file
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@ -0,0 +1,22 @@
#!/usr/bin/env fun
/*
* This file is part of the Fun programming language.
* https://fun-lang.xyz/
*
* Copyright 2025 Johannes Findeisen <you@hanez.org>
* Licensed under the terms of the Apache-2.0 license.
* https://opensource.org/license/apache-2-0
*
* Added: 2025-12-28
*/
#include <net/http_server.fun>
port = 8080
htdocs = "./examples/data/htdocs"
server = HTTPServer(port)
server.set_htdocs(htdocs)
server.start()

78
lib/net/http_server.fun Normal file
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@ -0,0 +1,78 @@
/*
* This file is part of the Fun programming language.
* https://fun-lang.xyz/
*
* Copyright 2025 Johannes Findeisen <you@hanez.org>
* Licensed under the terms of the Apache-2.0 license.
* https://opensource.org/license/apache-2-0
*
* Added: 2025-12-28
*/
#include <io/socket.fun>
#include <strings.fun>
class HTTPServer(number port)
fun _construct(this, port)
this.port = port
srv = TcpServer(port, 10)
this.server = srv
this.htdocs = "./"
fun set_htdocs(this, path)
this.htdocs = to_string(path)
fun start(this)
if (this.server.listen() <= 0)
print("HTTPServer: failed to listen on port " + to_string(this.port))
return 0
print("HTTPServer: serving " + this.htdocs + " on port " + to_string(this.port))
while true
client_fd = this.server.accept()
if (client_fd > 0)
this.handle_client(client_fd)
return 1
fun handle_client(this, fd)
request = sock_recv(fd, 4096)
if (len(request) == 0)
sock_close(fd)
return 0
// Basic request parsing
lines = str_split(request, "\n")
if (len(lines) == 0)
sock_close(fd)
return 0
first_line = lines[0]
parts = str_split(first_line, " ")
if (len(parts) < 2)
sock_close(fd)
return 0
method = parts[0]
path = parts[1]
if (path == "/")
path = "/index.html"
full_path = this.htdocs + path
content = read_file(full_path)
if (len(content) > 0)
this.send_response(fd, 200, "OK", content)
else
this.send_response(fd, 404, "Not Found", "<h1>404 Not Found</h1>")
sock_close(fd)
return 1
fun send_response(this, fd, status_code, status_text, body)
resp = "HTTP/1.1 " + to_string(status_code) + " " + status_text + "\r\n"
resp = resp + "Content-Type: text/html\r\n"
resp = resp + "Content-Length: " + to_string(len(body)) + "\r\n"
resp = resp + "Connection: close\r\n"
resp = resp + "\r\n"
resp = resp + body
sock_send(fd, resp)

2
lib/strings.fun
View file

@ -93,7 +93,7 @@ fun str_replace_all(s, from, to)
out = []
number i = 0
while i < n
if (i + lf <= n) && (substr(src, i, lf) == f)
if ((i + lf <= n) && (substr(src, i, lf) == f))
push(out, t)
i = i + lf
else