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net: http: client: Allow to abort download from response callback

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Update the response callback function signature to allow the callback to
return an error code, which in turn will cause the HTTP client to abort
the download.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
This commit is contained in:
Robert Lubos 2025-05-20 14:30:16 +02:00 • committed by Benjamin Cabé
commit 3572c9f825
7 changed files with 45 additions and 23 deletions
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8
doc/connectivity/networking/api/http_client.rst
View file

@ -56,9 +56,9 @@ The following is an example of a very simple response handling function:
.. code-block:: c
static void response_cb(struct http_response *rsp,
enum http_final_call final_data,
void *user_data)
static int response_cb(struct http_response *rsp,
enum http_final_call final_data,
void *user_data)
{
if (final_data == HTTP_DATA_MORE) {
LOG_INF("Partial data received (%zd bytes)", rsp->data_len);
@ -67,6 +67,8 @@ The following is an example of a very simple response handling function:
}
LOG_INF("Response status %s", rsp->http_status);
return 0;
}
See :zephyr:code-sample:`HTTP client sample application <sockets-http-client>` for

9
include/zephyr/net/http/client.h
View file

@ -94,10 +94,13 @@ typedef int (*http_header_cb_t)(int sock,
* @param final_data Does this data buffer contain all the data or
* is there still more data to come.
* @param user_data User specified data specified in http_client_req()
*
* @return 0 if http_client_req() should proceed with the download,
* <0 if http_client_req() should abort the download.
*/
typedef void (*http_response_cb_t)(struct http_response *rsp,
enum http_final_call final_data,
void *user_data);
typedef int (*http_response_cb_t)(struct http_response *rsp,
enum http_final_call final_data,
void *user_data);
/**
* HTTP response from the server.

8
samples/net/cloud/tagoio_http_post/src/main.c
View file

@ -18,9 +18,9 @@ LOG_MODULE_REGISTER(tagoio_http_post, CONFIG_TAGOIO_HTTP_POST_LOG_LEVEL);
static struct tagoio_context ctx;
static void response_cb(struct http_response *rsp,
enum http_final_call final_data,
void *user_data)
static int response_cb(struct http_response *rsp,
enum http_final_call final_data,
void *user_data)
{
if (final_data == HTTP_DATA_MORE) {
LOG_DBG("Partial data received (%zd bytes)", rsp->data_len);
@ -29,6 +29,8 @@ static void response_cb(struct http_response *rsp,
}
LOG_DBG("Response status %s", rsp->http_status);
return 0;
}
static int collect_data(void)

8
samples/net/sockets/http_client/src/main.c
View file

@ -112,9 +112,9 @@ static int payload_cb(int sock, struct http_request *req, void *user_data)
return pos;
}
static void response_cb(struct http_response *rsp,
enum http_final_call final_data,
void *user_data)
static int response_cb(struct http_response *rsp,
enum http_final_call final_data,
void *user_data)
{
if (final_data == HTTP_DATA_MORE) {
LOG_INF("Partial data received (%zd bytes)", rsp->data_len);
@ -124,6 +124,8 @@ static void response_cb(struct http_response *rsp,
LOG_INF("Response to %s", (const char *)user_data);
LOG_INF("Response status %s", rsp->http_status);
return 0;
}
static int connect_socket(sa_family_t family, const char *server, int port,

6
subsys/mgmt/hawkbit/hawkbit.c
View file

@ -996,7 +996,7 @@ static void response_download_cb(struct http_response *rsp, enum http_final_call
}
}
static void response_cb(struct http_response *rsp, enum http_final_call final_data, void *userdata)
static int response_cb(struct http_response *rsp, enum http_final_call final_data, void *userdata)
{
struct hawkbit_context *hb_context = userdata;
@ -1007,7 +1007,7 @@ static void response_cb(struct http_response *rsp, enum http_final_call final_da
} else {
hb_context->code_status = HAWKBIT_METADATA_ERROR;
}
return;
return 0;
}
switch (hb_context->type) {
@ -1023,6 +1023,8 @@ static void response_cb(struct http_response *rsp, enum http_final_call final_da
default:
break;
}
return 0;
}
static bool send_request(struct hawkbit_context *hb_context, enum hawkbit_http_request type,

21
subsys/net/lib/http/http_client.c
View file

@ -460,21 +460,25 @@ static void http_report_complete(struct http_request *req)
{
if (req->internal.response.cb) {
NET_DBG("Calling callback for %zd len data", req->internal.response.data_len);
req->internal.response.cb(&req->internal.response, HTTP_DATA_FINAL,
req->internal.user_data);
(void)req->internal.response.cb(&req->internal.response,
HTTP_DATA_FINAL,
req->internal.user_data);
}
}
/* Report that some data has been received, but the HTTP transaction is still ongoing. */
static void http_report_progress(struct http_request *req)
static int http_report_progress(struct http_request *req)
{
if (req->internal.response.cb) {
NET_DBG("Calling callback for partitioned %zd len data",
req->internal.response.data_len);
req->internal.response.cb(&req->internal.response, HTTP_DATA_MORE,
req->internal.user_data);
return req->internal.response.cb(&req->internal.response,
HTTP_DATA_MORE,
req->internal.user_data);
}
return 0;
}
static int http_wait_data(int sock, struct http_request *req, const k_timepoint_t req_end_timepoint)
@ -568,7 +572,12 @@ static int http_wait_data(int sock, struct http_request *req, const k_timepoint_
if (req->internal.response.message_complete) {
http_report_complete(req);
} else {
http_report_progress(req);
ret = http_report_progress(req);
if (ret < 0) {
LOG_DBG("Connection aborted by the application (%d)",
ret);
return -ECONNABORTED;
}
/* Re-use the result buffer and start to fill it again */
req->internal.response.data_len = 0;

8
subsys/net/lib/websocket/websocket.c
View file

@ -149,9 +149,9 @@ static struct websocket_context *websocket_find(int real_sock)
return ctx;
}
static void response_cb(struct http_response *rsp,
enum http_final_call final_data,
void *user_data)
static int response_cb(struct http_response *rsp,
enum http_final_call final_data,
void *user_data)
{
struct websocket_context *ctx = user_data;
@ -164,6 +164,8 @@ static void response_cb(struct http_response *rsp,
rsp->data_len);
ctx->all_received = true;
}
return 0;
}
static int on_header_field(struct http_parser *parser, const char *at,