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Alternative to mg_upload (Step 5/?)

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This commit is contained in:
bel
2016-01-10 22:17:27 +01:00
parent 2a676b114c
commit ff73f34ca6
4 changed files with 55 additions and 26 deletions
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33
examples/embedded_c/embedded_c.c
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@ -147,10 +147,10 @@ FooHandler(struct mg_connection *conn, void *cbdata)
int
FileHandler(struct mg_connection *conn, void *cbdata)
{
/* In this handler, we ignore the req_info and send the file "fileName". */
const char *fileName = (const char*)cbdata;
/* In this handler, we ignore the req_info and send the file "fileName". */
const char *fileName = (const char *)cbdata;
mg_send_file(conn, fileName);
mg_send_file(conn, fileName);
return 1;
}
@ -160,13 +160,13 @@ FormHandler(struct mg_connection *conn, void *cbdata)
{
/* Handler may access the request info using mg_get_request_info */
const struct mg_request_info *req_info = mg_get_request_info(conn);
int ret;
struct mg_form_data_handler *fdh = 0;
int ret;
struct mg_form_data_handler *fdh = 0;
/* TODO: Checks before calling handle_form_data ? */
(void)req_info;
/* TODO: Checks before calling handle_form_data ? */
(void)req_info;
ret = handle_form_data(conn, fdh);
ret = handle_form_data(conn, fdh);
return 1;
}
@ -361,7 +361,7 @@ main(int argc, char *argv[])
#endif
#ifndef NO_SSL
"ssl_certificate",
"../../resources/cert/server.pem",
"../../resources/cert/server.pem",
#endif
0};
struct mg_callbacks callbacks;
@ -421,13 +421,16 @@ main(int argc, char *argv[])
mg_set_request_handler(ctx, "**.foo$", FooHandler, 0);
/* Add handler for /form (serve a file outside the document root) */
mg_set_request_handler(ctx, "/form", FileHandler, (void *)"../../test/form.html");
mg_set_request_handler(ctx,
"/form",
FileHandler,
(void *)"../../test/form.html");
/* Add handler for form data */
mg_set_request_handler(ctx,
"/handle_form.embedded_c.example.callback",
FormHandler,
(void *)0);
/* Add handler for form data */
mg_set_request_handler(ctx,
"/handle_form.embedded_c.example.callback",
FormHandler,
(void *)0);
/* Add HTTP site to open a websocket connection */
mg_set_request_handler(ctx, "/websocket", WebSocketStartHandler, 0);

1
format.bat
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@ -27,3 +27,4 @@ clang-format -i test/shared.c
clang-format -i test/civetweb_check.h
clang-format -i test/main.c
clang-format -i examples/embedded_c/embedded_c.c

15
src/handle_form.inl
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@ -32,10 +32,21 @@ handle_form_data(struct mg_connection *conn, struct mg_form_data_handler *fdh)
(conn->request_info.content_length > 0) || (conn->is_chunked);
char *data;
/* There are three ways to encode data from a HTML form:
* 1) method: GET (default)
* The form data is in the HTTP query string.
* 2) method: POST, enctype: "application/x-www-form-urlencoded"
* The form data is in the request body.
* The body is url encoded (the default encoding for POST).
* 3) method: POST, enctype: "multipart/form-data".
* The form data is in the request body of a multipart message.
* This is the typical way to handle file upload from a form.
*/
content_type = mg_get_header(conn, "Content-Type");
if (content_type == NULL) {
/* This request does not have a content type set */
return 0;
/* This request does not have a content type set .. TODO: but it could be a GET requst */
//return 0;
}
if (!mg_strcasecmp(content_type, "APPLICATION/X-WWW-FORM-URLENCODED")) {

30
test/form.html
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@ -23,7 +23,8 @@
<form action="/handle_form.embedded_c.example.callback">
See <a href="http://www.w3schools.com/html/html_form_input_types.asp">HTML form tutorial</a>.<br />
See <a href="http://www.w3schools.com/html/html_form_input_types.asp">HTML form tutorial</a>
and <a href="http://www.w3.org/TR/html401/interact/forms.html">HTML spec</a>.<br />
<fieldset>
<legend>Text inputs:</legend>
@ -89,14 +90,27 @@
<textarea name="message" rows="10" cols="30">Text area default text.</textarea>
</fieldset>
<input type="submit" value="Submit to Lua script" formmethod="POST" formenctype="multipart/form-data"
formaction="/handle_form.lua">
<fieldset>
<legend>Submit:</legend>
<fieldset>
<legend>Submit to Lua script:</legend>
This will only work if server side Lua scripting is activated and /handle_form.lua can be found on the server.
<br>
<input type="submit" value="Submit" formmethod="POST" formenctype="multipart/form-data"
formaction="/handle_form.lua">
</fieldset>
<input type="submit" value="Submit (form default)">
<input type="submit" value="Submit (GET)" formmethod="GET">
<input type="submit" value="Submit (POST)" formmethod="POST">
<input type="submit" value="Submit (POST, url-encoded)" formmethod="POST" formenctype="application/x-www-form-urlencoded">
<input type="submit" value="Submit (POST, form-data)" formmethod="POST" formenctype="multipart/form-data">
<fieldset>
<legend>Submit to callback:</legend>
This will only work in the embedded_c example.
<br>
<input type="submit" value="Submit (form default)">
<input type="submit" value="Submit (GET)" formmethod="GET">
<input type="submit" value="Submit (POST)" formmethod="POST">
<input type="submit" value="Submit (POST, url-encoded)" formmethod="POST" formenctype="application/x-www-form-urlencoded">
<input type="submit" value="Submit (POST, form-data)" formmethod="POST" formenctype="multipart/form-data">
</fieldset>
</fieldset>
</form>
</body>