libuhttpd(中文)

A very tiny and fast HTTP server library based on libubox and referenced from uhttpd for Embedded Linux.

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Features

• Action - processes requests by invoking registered C functions which mapped to a specific path.
• Tiny and fast
• Use libubox as its event backend
• Support HTTPS - OpenSSL, mbedtls and CyaSSl(wolfssl)
• Flexible - you can easily extend your application to have HTTP/HTTPS services
• Code structure is concise and understandable, also suitable for learning

TO DO

• Lua API - Using Lua programming
• Lua Template - Embed Lua code into HTML code, like embedding PHP into HTML

Dependencies

• libubox
• ustream-ssl - If you need to support SSL
• mbedtls - If you choose mbedtls as your SSL backend
• CyaSSl(wolfssl) - If you choose wolfssl as your SSL backend
• openssl - If you choose openssl as your SSL backend

Configure

See which configuration are supported ~/libuhttpd/$ mkdir build && cd build ~/libuhttpd/build$ cmake .. -L ~/libuhttpd/build$ cmake .. -LH

Build and install

~/libuhttpd/build$ make && sudo make install

Run Example

Run

~/libuhttpd/build$ ./example/helloworld

Then use the command curl or browser to test

$ curl -k 'https://127.0.0.1:8000/hello?name=test' -d '{"name":"libuhttpd"}' -v

How to use on OpenWRT

add new feed into "feeds.conf.default":

src-git libuhttpd https://github.com/zhaojh329/libuhttpd-feed.git

Install libuhttpd packages:

./scripts/feeds update libuhttpd
./scripts/feeds install -a -p libuhttpd

Select package libuhttpd in menuconfig and compile new image.

Libraries  --->
    Networking  --->
        <*> libuhttpd-mbedtls.................................... libuhttpd (mbedtls)
        < > libuhttpd-nossl....................................... libuhttpd (NO SSL)
        < > libuhttpd-openssl.................................... libuhttpd (openssl)
        < > libuhttpd-wolfssl.................................... libuhttpd (wolfssl)

Example

#include <uhttpd.h>

//#define EXAMPLE_SSL

#define port 8000

static void hello_action(struct uh_client *cl)
{
    int body_len = 0;
    cl->send_header(cl, 200, "OK", -1);
    cl->append_header(cl, "Myheader", "Hello");
    cl->header_end(cl);

    cl->chunk_printf(cl, "<h1>Hello Libuhttpd %s</h1>", UHTTPD_VERSION_STRING);
    cl->chunk_printf(cl, "<h1>REMOTE_ADDR: %s</h1>", cl->get_peer_addr(cl));
    cl->chunk_printf(cl, "<h1>URL: %s</h1>", cl->get_url(cl));
    cl->chunk_printf(cl, "<h1>PATH: %s</h1>", cl->get_path(cl));
    cl->chunk_printf(cl, "<h1>QUERY: %s</h1>", cl->get_query(cl));
    cl->chunk_printf(cl, "<h1>VAR name: %s</h1>", cl->get_var(cl, "name"));
    cl->chunk_printf(cl, "<h1>BODY:%s</h1>", cl->get_body(cl, &body_len));
    cl->request_done(cl);
}

int main(int argc, char **argv)
{
    struct uh_server *srv = NULL;
    
    uh_log_debug("libuhttpd version: %s", UHTTPD_VERSION_STRING);

    uloop_init();

    srv = uh_server_new("0.0.0.0", port);
    if (!srv)
        goto done;

    uh_log_debug("Listen on: *:%d", port);

#ifdef EXAMPLE_SSL
#if (UHTTPD_SSL_SUPPORT)
    if (srv->ssl_init(srv, "server-key.pem", "server-cert.pem") < 0)
        goto done;
#endif
#endif
    srv->add_action(srv, "/hello", hello_action);
    
    uloop_run();
done:
    uloop_done();
    srv->free(srv);
    
    return 0;
}

Contributing

If you would like to help making libuhttpd better, see the CONTRIBUTING.md file.