Commit Graph

17 Commits

Author SHA1 Message Date
David Cermak
1b842ce1a8 http_server: websocket server to support async send 2020-03-18 20:24:46 +00:00
Jackson Ming Hu
e983042af2 http_server: adds WebSocket support
This commit adds the WebSocket support for esp_http_server
library. It mainly does:

- Handling WebSocket handshake
  - Parsing HTTP upgrade request
  - Reply the upgrade request
- Receive WebSocket packets
  - Parse header, decode to a struct
  - Unmask payload (if required)
- Send WebSocket frames
- Receive WebSocket frame
- Automatic control frame handling

Merges https://github.com/espressif/esp-idf/pull/4306
Closes https://github.com/espressif/esp-idf/issues/4819
2020-03-18 20:24:46 +00:00
Roland Dobai
612db28b6f Fix error code collision and CI check 2019-08-29 08:14:08 +00:00
Anurag Kar
9c6bec203d HTTP Server : Close new session immediately if open_fn fails
open_fn() was introduced in the context of HTTPS server, as a configurable callback function that is called by the HTTP server, on every newly created socket. It is responsible of allocating resources for per session transport security.

Earlier, if open_fn were to fail, the newly created socket would be closed by the server but the corresponding entry, for the now invalid socket, will remain in the internal socket database until that invalid socket is detected due to error when calling select(). Because of this delayed closing of sockets, the HTTPS server would quickly face shortage of available sessions when a lot of SSL handshake errors are happening (this typically occurs when a browser finds that the server certificate is self signed). This changes in this MR fix this issue by clearing up the socket from internal database, right after open_fn fails.

Closes https://github.com/espressif/esp-idf/issues/3479
2019-05-28 08:49:02 +00:00
Anurag Kar
5e1c19d73d esp_http_server : Minor clarification in httpd_req_get_url_query_str() API documentation
Closes https://github.com/espressif/esp-idf/issues/3374
2019-05-06 14:32:24 +05:30
Gregory Eslinger
7f1047847a HTTP Server: Added ability to select core
The task that runs the HTTP server can now be pinned to a particular core by setting `core_id`
in the HTTP server configuration.  By default, the core is set to `tskNO_AFFINITY`, meaning
it can run on any core.

Merges https://github.com/espressif/esp-idf/pull/3190
2019-03-21 11:22:58 +08:00
Piyush Shah
f28f4016cb esp_http_server: Provide apps an option to let http_server ignore sess_ctx changes
By default, if a URI handler changes the http session context,
the webserver internally clears the older context after the handler
returns. However, if applications want to change this behavior and
manage the allocation/de-allocation/freeing themselves and let the
server handle only the "socket close" case, this commit provides such
an option.
2019-03-05 00:21:03 +05:30
Angus Gratton
19fd436e88 Merge branch 'esp_http_server/lru_counter_for_timestamp' into 'master'
esp_http_server/lru_counter_for_timestamp:Added LRU counter for timer

See merge request idf/esp-idf!4205
2019-02-28 07:04:21 +08:00
Supreet Deshpande
4c8e997289 esp_http_server/lru_counter_for_timestamp:Added LRU counter for timer
Replaced the os timer in http server by LRU counter. The timestamp is
unnecessary for LRU.
2019-02-25 10:08:15 +00:00
Anurag Kar
28412d8cb6 http_server : Added feature for invoking user configurable handlers during server errors
Added APIs :
  * httpd_resp_send_err()        : for sending HTTP error responses for error codes given by httpd_err_code_t. It uses TCP_NODELAY option to ensure that HTTP error responses reach the client before socket is closed.
  * httpd_register_err_handler() : for registering HTTP error handler functions of type httpd_err_handler_func_t.

The default behavior, on encountering errors during processing of HTTP requests, is now to send HTTP error response (if possible) and close the underlying socket. User configurable handlers can be used to override this behavior for each error individually (except for 500 Internal Server Error).

Also fixed some typos.

Closes https://github.com/espressif/esp-idf/issues/3005
2019-02-25 09:13:39 +00:00
Anurag Kar
cfebbae3ef esp_http_server : Remove casual use of 'template' keyword
Closes https://github.com/espressif/esp-idf/issues/2956
2019-01-21 16:13:01 +05:30
Anurag Kar
416c55e7f0 HTTP Server : Add uri_match_fn field in config structure which accepts custom URI matching functions of type httpd_uri_match_func_t and defaults to basic string compare when set to NULL.
Move static uri_matches() function to httpd_uri_match_wildcard() under esp_http_server.h and make it optional.
2019-01-14 08:59:55 +05:30
Anurag Kar
107f52c4fc HTTP Server : Add helper APIs for sending string content
Note : In future consider deprecating usage of -1 for setting
buffer length equal to string length in APIs httpd_resp_send()
and httpd_resp_send_chunk()
2019-01-14 08:36:18 +05:30
Anurag Kar
9a9d18e466 esp_http_server : APIs renamed and context get/set implementations fixed
* http_sess_set_*_override APIs are now the only ones available to set custom recv/send/pending functions
* Fixed side effects to using http_sess_set/get_context inside URI handlers
2018-11-19 04:00:21 +00:00
Anurag Kar
aa6066a197 esp_https_server : Docs and API references fixed 2018-11-19 04:00:21 +00:00
Ondřej Hruška
a10fc02dd9 esp_http_server improvements to allow adding transport layer encryption
Changes:
- renamed `httpd_free_sess_ctx_fn_t` to `httpd_free_ctx_fn_t`
- added a `httpd_handle_t` argument to `httpd_send_func_t` and `httpd_recv_func_t`
- internal function `httpd_sess_get()` is no longer static, as it's used in other
  files besides httpd_sess.c

Bug fixes:
- removed a trailing semicolon from `HTTPD_DEFAULT_CONFIG()`
- fixed issue with failed `select()`, now it automatically closes invalid sockets
  instead of shutting down the entire server

New features:
- `httpd_resp_send()` and `httpd_resp_send_chunk()` now accept -1 as length to use
  `strlen()` internally
- added `httpd_sess_set_ctx()` to accompany `httpd_sess_get_ctx()`
- added a "transport context" to the session structure (next to user context)
- added `httpd_sess_{get,set}_transport_ctx()` to work with this transport context
- added "global user context" and "global transport context" stored in the server
  config (and then the handle); supports a user-provided free_fn
- added a "pending func" to e.g. check for data in the transport layer receive
  buffer
- added functions `httpd_set_sess_{send,recv,pending}_override()` that target
  a session by ID (i.e. not using a request object)
- added `httpd_set_pending_override()`
- added a "open_fn" and "close_fn" - functions called when creating and closing
  a session. These may be used to set up transport layer encryption or some other
  session-wide feature
2018-11-19 04:00:21 +00:00
Anurag Kar
2af9d7e0ed HTTP Server : Added esp_ prefix to http_server component files 2018-10-24 17:32:20 +05:30