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feat(esp_http_server): Added pre handshake callback for websocket

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1. If the user wants authenticate the request, then user needs to do
this before upgrading the protocol to websocket.
2. To achieve this, added pre_handshake_callack, which will execute
before handshake, i.e. before switching protocol.
This commit is contained in:
hrushikesh.bhosale
2025-07-18 15:14:33 +05:30
parent b32c31e500
commit a40ceffb19
7 changed files with 139 additions and 3 deletions
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10
components/esp_http_server/src/httpd_uri.c
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@@ -166,6 +166,9 @@ esp_err_t httpd_register_uri_handler(httpd_handle_t handle,
hd->hd_calls[i]->method = uri_handler->method;
hd->hd_calls[i]->handler = uri_handler->handler;
hd->hd_calls[i]->user_ctx = uri_handler->user_ctx;
#ifdef CONFIG_HTTPD_WS_PRE_HANDSHAKE_CB_SUPPORT
hd->hd_calls[i]->ws_pre_handshake_cb = uri_handler->ws_pre_handshake_cb;
#endif
#ifdef CONFIG_HTTPD_WS_SUPPORT
hd->hd_calls[i]->is_websocket = uri_handler->is_websocket;
hd->hd_calls[i]->handle_ws_control_frames = uri_handler->handle_ws_control_frames;
@@ -320,6 +323,13 @@ esp_err_t httpd_uri(struct httpd_data *hd)
#ifdef CONFIG_HTTPD_WS_SUPPORT
struct httpd_req_aux *aux = req->aux;
if (uri->is_websocket && aux->ws_handshake_detect && uri->method == HTTP_GET) {
#ifdef CONFIG_HTTPD_WS_PRE_HANDSHAKE_CB_SUPPORT
if (uri->ws_pre_handshake_cb && uri->ws_pre_handshake_cb(req) != ESP_OK) {
ESP_LOGW(TAG, LOG_FMT("ws_pre_handshake_cb failed"));
return ESP_FAIL;
}
#endif
ESP_LOGD(TAG, LOG_FMT("Responding WS handshake to sock %d"), aux->sd->fd);
esp_err_t ret = httpd_ws_respond_server_handshake(&hd->hd_req, uri->supported_subprotocol);
if (ret != ESP_OK) {