mongoose/examples/file-upload-single-post/main.c
2022-08-01 11:19:32 +01:00

48 lines
1.8 KiB
C

// Copyright (c) 2020 Cesanta Software Limited
// All rights reserved
//
// Streaming upload example. Demonstrates how to use chunked encoding
// to send large payload in smaller chunks. To test, use curl utility:
//
// curl http://localhost:8000/upload?name=a.txt --data-binary @large_file.txt
#include "mongoose.h"
// HTTP request handler function. It implements the following endpoints:
// /upload - Saves the next file chunk
// all other URI - serves web_root/ directory
static void cb(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
struct mg_http_message *hm = (struct mg_http_message *) ev_data;
if (ev == MG_EV_HTTP_CHUNK && mg_http_match_uri(hm, "/upload")) {
MG_INFO(("Got chunk len %lu", (unsigned long) hm->chunk.len));
MG_INFO(("Query string: [%.*s]", (int) hm->query.len, hm->query.ptr));
// MG_INFO(("Chunk data:\n%.*s", (int) hm->chunk.len, hm->chunk.ptr));
mg_http_delete_chunk(c, hm);
if (hm->chunk.len == 0) {
MG_INFO(("Last chunk received, sending response"));
mg_http_reply(c, 200, "", "ok (chunked)\n");
}
} else if (ev == MG_EV_HTTP_MSG && mg_http_match_uri(hm, "/upload")) {
MG_INFO(("Got all %lu bytes!", (unsigned long) hm->body.len));
MG_INFO(("Query string: [%.*s]", (int) hm->query.len, hm->query.ptr));
// MG_INFO(("Body:\n%.*s", (int) hm->body.len, hm->body.ptr));
mg_http_reply(c, 200, "", "ok (%lu)\n", (unsigned long) hm->body.len);
} else if (ev == MG_EV_HTTP_MSG) {
struct mg_http_serve_opts opts = {.root_dir = "web_root"};
mg_http_serve_dir(c, hm, &opts);
}
}
int main(void) {
struct mg_mgr mgr;
mg_mgr_init(&mgr);
mg_log_set(MG_LL_DEBUG); // Set debug log level
mg_http_listen(&mgr, "http://localhost:8000", cb, NULL);
for (;;) mg_mgr_poll(&mgr, 50);
mg_mgr_free(&mgr);
return 0;
}