Tasmota/tasmota/xdrv_52_3_berry_webserver.ino

246 lines
8.0 KiB
C++

/*
xdrv_52_3_berry_webserver.ino - Berry scripting language, webserver module
Copyright (C) 2021 Stephan Hadinger, Berry language by Guan Wenliang https://github.com/Skiars/berry
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef USE_BERRY
#ifdef USE_WEBSERVER
#include <berry.h>
/*********************************************************************************************\
* Int constants
*********************************************************************************************/
const be_constint_t webserver_constants[] = {
{ "BUTTON_CONFIGURATION", BUTTON_CONFIGURATION },
{ "BUTTON_INFORMATION", BUTTON_INFORMATION },
{ "BUTTON_MAIN", BUTTON_MAIN },
{ "BUTTON_MANAGEMENT", BUTTON_MANAGEMENT },
{ "BUTTON_MODULE", BUTTON_MODULE },
{ "HTTP_ADMIN", HTTP_ADMIN },
{ "HTTP_ANY", HTTP_ANY },
{ "HTTP_GET", HTTP_GET },
{ "HTTP_MANAGER", HTTP_MANAGER },
{ "HTTP_MANAGER_RESET_ONLY", HTTP_MANAGER_RESET_ONLY },
{ "HTTP_OFF", HTTP_OFF },
{ "HTTP_OPTIONS", HTTP_OPTIONS },
{ "HTTP_POST", HTTP_POST },
{ "HTTP_USER", HTTP_USER },
};
extern "C" {
int w_webserver_member(bvm *vm);
int w_webserver_member(bvm *vm) {
int32_t argc = be_top(vm); // Get the number of arguments
if (argc == 1 && be_isstring(vm, 1)) {
const char * needle = be_tostring(vm, 1);
int32_t constant_idx = bin_search(needle, &webserver_constants[0].name, sizeof(webserver_constants[0]), ARRAY_SIZE(webserver_constants));
if (constant_idx >= 0) {
// we did have a match, low == high
be_pushint(vm, webserver_constants[constant_idx].value);
be_return(vm);
}
}
be_raise(vm, "attribute_error", "module 'webserver' has no such attribute");
}
}
/*********************************************************************************************\
* Native functions mapped to Berry functions
*
* import webserver
*
\*********************************************************************************************/
extern "C" {
// Berry: `webserver.on(prefix:string, callback:closure) -> nil`
//
// WARNING - this should be called only when receiving `web_add_handler` event.
// If called before the WebServer is set up and Wifi on, it will crash.
// For debug purpose, it can be called later when you are sure that Wifi/Eth is up
//
int32_t w_webserver_on(struct bvm *vm);
int32_t w_webserver_on(struct bvm *vm) {
if (!Web.state) {
be_raise(vm, kInternalError, "Web.state is 'HTTP_OFF'");
}
int32_t argc = be_top(vm); // Get the number of arguments
if (argc >= 2 && be_isstring(vm, 1) && be_isclosure(vm, 2) &&
(argc < 3 || be_isint(vm, 3)) ) { // optional third argument must be int
uint8_t method = HTTP_ANY; // default method if not specified
const char * prefix = be_tostring(vm, 1);
if (argc >= 3) {
method = be_toint(vm, 3);
}
be_getglobal(vm, PSTR("tasmota"));
if (!be_isnil(vm, -1)) {
be_getmethod(vm, -1, PSTR("gen_cb"));
if (!be_isnil(vm, -1)) {
be_pushvalue(vm, -2); // add instance as first arg
be_pushvalue(vm, 2); // push closure as second arg
be_pcall(vm, 2); // 2 arguments
be_pop(vm, 2);
if (be_iscomptr(vm, -1)) { // sanity check
const void * cb = be_tocomptr(vm, -1);
// All good, we can proceed
WebServer_on(prefix, (void (*)()) cb, method);
be_return_nil(vm); // return, all good
}
}
be_pop(vm, 1);
}
// be_pop(vm, 1); // not really useful since we raise an exception anyways
be_raise(vm, kInternalError, nullptr);
}
be_raise(vm, kTypeError, nullptr);
}
// Berry: `webserver.state() -> int`
//
int32_t w_webserver_state(struct bvm *vm);
int32_t w_webserver_state(struct bvm *vm) {
be_pushint(vm, Web.state);
be_return(vm);
}
// Berry: `webserver.check_privileged_access() -> bool`
//
int32_t w_webserver_check_privileged_access(struct bvm *vm);
int32_t w_webserver_check_privileged_access(struct bvm *vm) {
be_pushbool(vm, HttpCheckPriviledgedAccess());
be_return(vm);
}
// Berry: `webserver.content_start() -> nil`
//
int32_t w_webserver_content_start(struct bvm *vm);
int32_t w_webserver_content_start(struct bvm *vm) {
int32_t argc = be_top(vm); // Get the number of arguments
if (argc >= 1 && be_isstring(vm, 1)) {
const char * html = be_tostring(vm, 1);
WSContentStart_P(html);
be_return_nil(vm);
}
be_raise(vm, kTypeError, nullptr);
}
// Berry: `webserver.content_send() -> nil`
//
int32_t w_webserver_content_send(struct bvm *vm);
int32_t w_webserver_content_send(struct bvm *vm) {
int32_t argc = be_top(vm); // Get the number of arguments
if (argc >= 1 && be_isstring(vm, 1)) {
const char * html = be_tostring(vm, 1);
WSContentSend_P(PSTR("%s"), html);
be_return_nil(vm);
}
be_raise(vm, kTypeError, nullptr);
}
// Berry: `webserver.content_send_style() -> nil`
//
int32_t w_webserver_content_send_style(struct bvm *vm);
int32_t w_webserver_content_send_style(struct bvm *vm) {
WSContentSendStyle();
be_return_nil(vm);
}
// Berry: `webserver.content_flush() -> nil`
//
int32_t w_webserver_content_flush(struct bvm *vm);
int32_t w_webserver_content_flush(struct bvm *vm) {
WSContentFlush();
be_return_nil(vm);
}
// Berry: `webserver.content_stop() -> nil`
//
int32_t w_webserver_content_stop(struct bvm *vm);
int32_t w_webserver_content_stop(struct bvm *vm) {
WSContentStop();
be_return_nil(vm);
}
// Berry: `webserver.content_button([button:int]) -> nil`
// Default button is BUTTON_MAIN
//
int32_t w_webserver_content_button(struct bvm *vm);
int32_t w_webserver_content_button(struct bvm *vm) {
int32_t argc = be_top(vm); // Get the number of arguments
if (argc < 1 || be_isint(vm, 1)) {
int32_t button = BUTTON_MAIN;
if (argc > 0) {
button = be_toint(vm, 1);
}
WSContentSpaceButton(button);
be_return_nil(vm);
}
be_raise(vm, kTypeError, nullptr);
}
// Berry: `webserver.args() -> int`
//
// Returns the number of arguments
int32_t w_webserver_argsize(struct bvm *vm);
int32_t w_webserver_argsize(struct bvm *vm) {
be_pushint(vm, Webserver->args());
be_return(vm);
}
// Berry: `webserver.arg(int or string) -> string`
//
// takes either an int (index 0..args-1) or a string (name of arg)
int32_t w_webserver_arg(struct bvm *vm);
int32_t w_webserver_arg(struct bvm *vm) {
int32_t argc = be_top(vm); // Get the number of arguments
if (argc >= 1 && (be_isint(vm, 1) || be_isstring(vm, 1))) {
if (be_isint(vm, 1)) {
int32_t idx = be_toint(vm, 1);
be_pushstring(vm, Webserver->arg(idx).c_str());
} else {
const char * arg_name = be_tostring(vm, 1);
be_pushstring(vm, Webserver->arg(arg_name).c_str());
}
be_return(vm);
}
be_raise(vm, kTypeError, nullptr);
}
// Berry: `webserver.has_arg(name:string) -> bool`
//
int32_t w_webserver_has_arg(struct bvm *vm);
int32_t w_webserver_has_arg(struct bvm *vm) {
int32_t argc = be_top(vm); // Get the number of arguments
if (argc >= 1 && be_isstring(vm, 1)) {
const char * arg_name = be_tostring(vm, 1);
be_pushbool(vm, Webserver->hasArg(arg_name));
be_return(vm);
}
be_raise(vm, kTypeError, nullptr);
}
}
#endif // USE_WEBSERVER
#endif // USE_BERRY