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Added upload example

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This commit is contained in:
Sergey Lyubka 2014-01-13 17:01:11 +00:00
parent 73ed83c5e3
commit 6b4f7e785d
3 changed files with 41 additions and 37 deletions
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5
docs/Embed.md
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@ -90,6 +90,7 @@ a couple of kilobytes to the executable size, and also has some runtime penalty.
Mongoose source code contains a well-commented example code, listed below:
* [hello.c](https://github.com/cesanta/mongoose/blob/master/examples/hello.c)
is a minimalisting hello world example
is a minimalistic hello world example
* [post.c](https://github.com/cesanta/mongoose/blob/master/examples/post.c)
shows how to handle form input
* [upload.c](https://github.com/cesanta/mongoose/blob/master/examples/post.c)
shows how to upload files

5
examples/Makefile
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@ -23,8 +23,8 @@ all:
$(CC) qcomm.c ../mongoose.c -o qcomm $(CFLAGS)
$(CC) post.c ../mongoose.c -o post $(CFLAGS)
$(CC) multi_threaded.c ../mongoose.c -o multi_threaded $(CFLAGS)
$(CC) upload.c ../mongoose.c -o upload $(CFLAGS)
# $(CC) upload.c ../mongoose.c -o upload $(CFLAGS)
# $(CC) -DUSE_WEBSOCKET websocket.c ../mongoose.c -o $@ $(CFLAGS)
# $(CC) chat.c ../mongoose.c -o chat $(CFLAGS)
# $(CC) lua_dll.c ../build/lua_5.2.1.c -o $@.so $(CFLAGS) $(DLL_FLAGS)
@ -40,7 +40,8 @@ windows:
$(CL) hello.c ../mongoose.c $(CLFLAGS) $(LFLAGS)
$(CL) post.c ../mongoose.c $(CLFLAGS) $(LFLAGS)
$(CL) multi_threaded.c ../mongoose.c $(CLFLAGS) $(LFLAGS)
# $(CL) upload.c ../mongoose.c $(CLFLAGS) $(LFLAGS)
$(CL) upload.c ../mongoose.c $(CLFLAGS) $(LFLAGS)
# $(CL) /DUSE_WEBSOCKET websocket.c ../mongoose.c $(CLFLAGS) $(LFLAGS)
#$(CL) lua_dll.c $(CLFLAGS) $(DLL_FLAGS) /DLL $(LFLAGS) /SUBSYSTEM:WINDOWS /ENTRY:luaopen_lua_dll /EXPORT:luaopen_lua_dll /out:lua_dll.dll

68
examples/upload.c
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@ -5,48 +5,50 @@
#include <string.h>
#include "mongoose.h"
static int event_handler(struct mg_event *event) {
static int index_html(struct mg_connection *conn) {
const char *data;
int data_len;
char var_name[100], file_name[100];
if (event->type == MG_REQUEST_BEGIN) {
if (!strcmp(event->request_info->uri, "/handle_post_request")) {
char path[200];
FILE *fp = mg_upload(event->conn, "/tmp", path, sizeof(path));
if (fp != NULL) {
fclose(fp);
mg_printf(event->conn, "HTTP/1.0 200 OK\r\n\r\nSaved: [%s]", path);
} else {
mg_printf(event->conn, "%s", "HTTP/1.0 200 OK\r\n\r\nNo files sent");
}
} else {
// Show HTML form. Make sure it has enctype="multipart/form-data" attr.
static const char *html_form =
"<html><body>Upload example."
"<form method=\"POST\" action=\"/handle_post_request\" "
" enctype=\"multipart/form-data\">"
"<input type=\"file\" name=\"file\" /> <br/>"
"<input type=\"submit\" value=\"Upload\" />"
"</form></body></html>";
mg_printf_data(conn, "%s",
"<html><body>Upload example."
"<form method=\"POST\" action=\"/handle_post_request\" "
" enctype=\"multipart/form-data\">"
"<input type=\"file\" name=\"file\" /> <br/>"
"<input type=\"submit\" value=\"Upload\" />"
"</form>");
mg_printf(event->conn, "HTTP/1.0 200 OK\r\n"
"Content-Length: %d\r\n"
"Content-Type: text/html\r\n\r\n%s",
(int) strlen(html_form), html_form);
}
if (mg_parse_multipart(conn->content, conn->content_len,
var_name, sizeof(var_name),
file_name, sizeof(file_name),
&data, &data_len) > 0) {
// Mark request as processed
return 1;
mg_printf_data(conn, "%s", "Uploaded file:<pre>");
mg_send_data(conn, data, data_len);
mg_printf_data(conn, "%s", "/pre>");
}
// All other events left unprocessed
mg_printf_data(conn, "%s", "</body></html>");
return 1;
}
int main(void) {
struct mg_context *ctx;
const char *options[] = {"listening_ports", "8080", NULL};
ctx = mg_start(options, event_handler, NULL);
getchar(); // Wait until user hits "enter"
mg_stop(ctx);
struct mg_server *server;
// Create and configure the server
server = mg_create_server(NULL);
mg_set_option(server, "listening_port", "8080");
mg_add_uri_handler(server, "/", index_html);
// Serve request. Hit Ctrl-C to terminate the program
printf("Starting on port %s\n", mg_get_option(server, "listening_port"));
for (;;) {
mg_poll_server(server, 1000);
}
// Cleanup, and free server instance
mg_destroy_server(&server);
return 0;
}