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mirror of https://github.com/lammertb/libhttp.git synced 2025-07-29 21:01:13 +03:00

Alternative to mg_upload (Step 5/?)

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

View File

@ -147,10 +147,10 @@ FooHandler(struct mg_connection *conn, void *cbdata)
int int
FileHandler(struct mg_connection *conn, void *cbdata) FileHandler(struct mg_connection *conn, void *cbdata)
{ {
/* In this handler, we ignore the req_info and send the file "fileName". */ /* In this handler, we ignore the req_info and send the file "fileName". */
const char *fileName = (const char*)cbdata; const char *fileName = (const char *)cbdata;
mg_send_file(conn, fileName); mg_send_file(conn, fileName);
return 1; return 1;
} }
@ -160,13 +160,13 @@ FormHandler(struct mg_connection *conn, void *cbdata)
{ {
/* Handler may access the request info using mg_get_request_info */ /* Handler may access the request info using mg_get_request_info */
const struct mg_request_info *req_info = mg_get_request_info(conn); const struct mg_request_info *req_info = mg_get_request_info(conn);
int ret; int ret;
struct mg_form_data_handler *fdh = 0; struct mg_form_data_handler *fdh = 0;
/* TODO: Checks before calling handle_form_data ? */ /* TODO: Checks before calling handle_form_data ? */
(void)req_info; (void)req_info;
ret = handle_form_data(conn, fdh); ret = handle_form_data(conn, fdh);
return 1; return 1;
} }
@ -361,7 +361,7 @@ main(int argc, char *argv[])
#endif #endif
#ifndef NO_SSL #ifndef NO_SSL
"ssl_certificate", "ssl_certificate",
"../../resources/cert/server.pem", "../../resources/cert/server.pem",
#endif #endif
0}; 0};
struct mg_callbacks callbacks; struct mg_callbacks callbacks;
@ -421,13 +421,16 @@ main(int argc, char *argv[])
mg_set_request_handler(ctx, "**.foo$", FooHandler, 0); mg_set_request_handler(ctx, "**.foo$", FooHandler, 0);
/* Add handler for /form (serve a file outside the document root) */ /* 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 */ /* Add handler for form data */
mg_set_request_handler(ctx, mg_set_request_handler(ctx,
"/handle_form.embedded_c.example.callback", "/handle_form.embedded_c.example.callback",
FormHandler, FormHandler,
(void *)0); (void *)0);
/* Add HTTP site to open a websocket connection */ /* Add HTTP site to open a websocket connection */
mg_set_request_handler(ctx, "/websocket", WebSocketStartHandler, 0); mg_set_request_handler(ctx, "/websocket", WebSocketStartHandler, 0);

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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/civetweb_check.h
clang-format -i test/main.c clang-format -i test/main.c
clang-format -i examples/embedded_c/embedded_c.c

View File

@ -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); (conn->request_info.content_length > 0) || (conn->is_chunked);
char *data; 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"); content_type = mg_get_header(conn, "Content-Type");
if (content_type == NULL) { if (content_type == NULL) {
/* This request does not have a content type set */ /* This request does not have a content type set .. TODO: but it could be a GET requst */
return 0; //return 0;
} }
if (!mg_strcasecmp(content_type, "APPLICATION/X-WWW-FORM-URLENCODED")) { if (!mg_strcasecmp(content_type, "APPLICATION/X-WWW-FORM-URLENCODED")) {

View File

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