mongoose/tutorials/http/file-upload-html-form/main.c
2024-05-01 15:17:39 -03:00

52 lines
1.8 KiB
C

// Copyright (c) 2021 Cesanta Software Limited
// All rights reserved
#include "mongoose.h"
// HTTP request handler function. It implements the following endpoints:
// /upload - prints all submitted form elements
// all other URI - serves web_root/ directory
//
// ///////////////// IMPORTANT //////////////////////////
//
// Mongoose has a limit on input buffer, which also limits maximum upload size.
// It is controlled by the MG_MAX_RECV_SIZE constant, which is set by
// default to (3 * 1024 * 1024), i.e. 3 megabytes.
// Use -DMG_MAX_BUF_SIZE=NEW_LIMIT to override it.
//
// Also, consider changing -DMG_IO_SIZE=SOME_BIG_VALUE to increase IO buffer
// increment when reading data.
static void cb(struct mg_connection *c, int ev, void *ev_data) {
if (ev == MG_EV_HTTP_MSG) {
struct mg_http_message *hm = (struct mg_http_message *) ev_data;
MG_INFO(("New request to: [%.*s], body size: %lu", (int) hm->uri.len,
hm->uri.buf, (unsigned long) hm->body.len));
if (mg_match(hm->uri, mg_str("/upload"), NULL)) {
struct mg_http_part part;
size_t ofs = 0;
while ((ofs = mg_http_next_multipart(hm->body, ofs, &part)) > 0) {
MG_INFO(("Chunk name: [%.*s] filename: [%.*s] length: %lu bytes",
(int) part.name.len, part.name.buf, (int) part.filename.len,
part.filename.buf, (unsigned long) part.body.len));
}
mg_http_reply(c, 200, "", "Thank you!");
} else {
struct mg_http_serve_opts opts = {.root_dir = "web_root"};
mg_http_serve_dir(c, ev_data, &opts);
}
}
}
int main(void) {
struct mg_mgr mgr;
mg_mgr_init(&mgr);
mg_log_set(MG_LL_DEBUG); // Set log level
mg_http_listen(&mgr, "http://localhost:8000", cb, NULL);
for (;;) mg_mgr_poll(&mgr, 50);
mg_mgr_free(&mgr);
return 0;
}