mirror of
https://github.com/emsesp/EMS-ESP32.git
synced 2025-12-06 15:59:52 +03:00
622 lines
23 KiB
C++
622 lines
23 KiB
C++
/*
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* EMS-ESP - https://github.com/emsesp/EMS-ESP
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* Copyright 2020 Paul Derbyshire
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "command.h"
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#include "emsdevice.h"
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#include "emsesp.h"
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namespace emsesp {
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uuid::log::Logger Command::logger_{F_(command), uuid::log::Facility::DAEMON};
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std::vector<Command::CmdFunction> Command::cmdfunctions_;
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// takes a path and a json body, parses the data and calls the command
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// the path is leading so if duplicate keys are in the input JSON it will be ignored
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// the entry point will be either via the Web API (api/) or MQTT (<base>/)
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// returns a return code and json output
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uint8_t Command::process(const char * path, const bool is_admin, const JsonObject & input, JsonObject & output) {
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SUrlParser p; // parse URL for the path names
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p.parse(path);
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if (!p.paths().size()) {
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return message(CommandRet::ERROR, "invalid path", output);
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}
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// check first if it's from API, if so strip the "api/"
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if (p.paths().front() == "api") {
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p.paths().erase(p.paths().begin());
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} else {
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// not /api, so must be MQTT path. Check for base and remove it.
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if (!strncmp(path, Mqtt::base().c_str(), Mqtt::base().length())) {
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char new_path[Mqtt::MQTT_TOPIC_MAX_SIZE];
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strlcpy(new_path, path, sizeof(new_path));
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p.parse(new_path + Mqtt::base().length() + 1); // re-parse the stripped path
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} else {
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return message(CommandRet::ERROR, "unrecognized path", output); // error
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}
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}
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#if defined(EMSESP_USE_SERIAL)
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// Serial.println(p.path().c_str()); // dump paths, for debugging
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#endif
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// re-calculate new path
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// if there is only a path (URL) and no body then error!
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size_t num_paths = p.paths().size();
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if (!num_paths && !input.size()) {
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return message(CommandRet::ERROR, "missing command in path", output);
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}
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std::string cmd_s;
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int8_t id_n = -1; // default hc
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// check for a device as first item in the path
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// if its not a known device (thermostat, boiler etc) look for any special MQTT subscriptions
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const char * device_s = nullptr;
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if (!num_paths) {
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// we must look for the device in the JSON body
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if (input.containsKey("device")) {
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device_s = input["device"];
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}
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} else {
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// extract it from the path
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device_s = p.paths().front().c_str(); // get the device (boiler, thermostat, system etc)
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}
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// validate the device, make sure it exists
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uint8_t device_type = EMSdevice::device_name_2_device_type(device_s);
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if (!device_has_commands(device_type)) {
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LOG_DEBUG(F("Command failed: unknown device '%s'"), device_s);
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return message(CommandRet::ERROR, "unknown device", output);
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}
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// the next value on the path should be the command or entity name
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const char * command_p = nullptr;
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if (num_paths == 2) {
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command_p = p.paths()[1].c_str();
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} else if (num_paths == 3) {
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// concatenate the path into one string as it could be in the format 'hc/XXX'
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char command[50];
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snprintf(command, sizeof(command), "%s/%s", p.paths()[1].c_str(), p.paths()[2].c_str());
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command_p = command;
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} else if (num_paths > 3) {
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// concatenate the path into one string as it could be in the format 'hc/XXX/attribute'
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char command[50];
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snprintf(command, sizeof(command), "%s/%s/%s", p.paths()[1].c_str(), p.paths()[2].c_str(), p.paths()[3].c_str());
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command_p = command;
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} else {
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// take it from the JSON
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if (input.containsKey("entity")) {
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command_p = input["entity"];
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} else if (input.containsKey("cmd")) {
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command_p = input["cmd"];
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}
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}
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// some commands may be prefixed with hc. wwc. or hc/ or wwc/ so extract these if they exist
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// parse_command_string returns the extracted command
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command_p = parse_command_string(command_p, id_n);
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if (command_p == nullptr) {
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// handle dead endpoints like api/system or api/boiler
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// default to 'info' for SYSTEM, DALLASENSOR and ANALOGSENSOR, the other devices to 'values' for shortname version
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if (num_paths < (id_n > 0 ? 4 : 3)) {
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if (device_type < EMSdevice::DeviceType::BOILER) {
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command_p = "info";
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} else {
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command_p = "values";
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}
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} else {
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return message(CommandRet::NOT_FOUND, "missing or bad command", output);
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}
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}
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// if we don't have an id/hc/wwc try and get it from the JSON input
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// it's allowed to have no id, and then keep the default to -1
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if (id_n == -1) {
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if (input.containsKey("hc")) {
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id_n = input["hc"];
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} else if (input.containsKey("wwc")) {
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id_n = input["wwc"];
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id_n += 8; // wwc1 has id 9
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} else if (input.containsKey("id")) {
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id_n = input["id"];
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}
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}
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// the value must always come from the input JSON. It's allowed to be empty.
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JsonVariant data;
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if (input.containsKey("data")) {
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data = input["data"];
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} else if (input.containsKey("value")) {
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data = input["value"];
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}
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// call the command based on the type
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uint8_t return_code = CommandRet::ERROR;
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if (data.is<const char *>()) {
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return_code = Command::call(device_type, command_p, data.as<const char *>(), is_admin, id_n, output);
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} else if (data.is<int>()) {
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char data_str[10];
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return_code = Command::call(device_type, command_p, Helpers::itoa((int16_t)data.as<int>(), data_str), is_admin, id_n, output);
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} else if (data.is<float>()) {
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char data_str[10];
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return_code = Command::call(device_type, command_p, Helpers::render_value(data_str, data.as<float>(), 2), is_admin, id_n, output);
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} else if (data.is<bool>()) {
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return_code = Command::call(device_type, command_p, data.as<bool>() ? "1" : "0", is_admin, id_n, output);
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} else if (data.isNull()) {
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return_code = Command::call(device_type, command_p, "", is_admin, id_n, output); // empty, will do a query instead
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} else {
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return message(CommandRet::ERROR, "cannot parse command", output); // can't process
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}
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return return_code;
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}
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std::string Command::return_code_string(const uint8_t return_code) {
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switch (return_code) {
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case CommandRet::ERROR:
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return read_flash_string(F("Error"));
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case CommandRet::OK:
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return read_flash_string(F("OK"));
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case CommandRet::NOT_FOUND:
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return read_flash_string(F("Not Found"));
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case CommandRet::NOT_ALLOWED:
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return read_flash_string(F("Not Authorized"));
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case CommandRet::FAIL:
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return read_flash_string(F("Failed"));
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default:
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break;
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}
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char s[4];
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return Helpers::smallitoa(s, return_code);
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}
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// takes a string like "hc1/seltemp" or "seltemp" or "wwc2.seltemp" and tries to get the id and cmd
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// returns start position of the command string
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const char * Command::parse_command_string(const char * command, int8_t & id) {
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if (command == nullptr) {
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return nullptr;
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}
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// check prefix and valid number range, also check 'id'
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if (!strncmp(command, "hc", 2) && command[2] >= '1' && command[2] <= '8') {
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id = command[2] - '0';
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command += 3;
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} else if (!strncmp(command, "wwc", 3) && command[3] == '1' && command[4] == '0') {
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id = 19;
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command += 5;
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} else if (!strncmp(command, "wwc", 3) && command[3] >= '1' && command[3] <= '9') {
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id = command[3] - '0' + 8;
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command += 4;
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} else if (!strncmp(command, "id", 2) && command[2] == '1' && command[3] >= '0' && command[3] <= '9') {
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id = command[3] - '0' + 10;
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command += 4;
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} else if (!strncmp(command, "id", 2) && command[2] >= '1' && command[2] <= '9') {
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id = command[2] - '0';
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command += 3;
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}
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// remove separator
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if (command[0] == '/' || command[0] == '.' || command[0] == '_') {
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command++;
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}
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// return null for empty command
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if (command[0] == '\0') {
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return nullptr;
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}
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return command;
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}
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// calls a command directly
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uint8_t Command::call(const uint8_t device_type, const char * cmd, const char * value) {
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// create a temporary buffer
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StaticJsonDocument<EMSESP_JSON_SIZE_SMALL> output_doc;
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JsonObject output = output_doc.to<JsonObject>();
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// authenticated is always true and ID is the default value
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return call(device_type, cmd, value, true, -1, output);
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}
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// calls a command. Takes a json object for output.
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// id may be used to represent a heating circuit for example
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// returns 0 if the command errored, 1 (TRUE) if ok, 2 if not found, 3 if error or 4 if not allowed
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uint8_t Command::call(const uint8_t device_type, const char * cmd, const char * value, const bool is_admin, const int8_t id, JsonObject & output) {
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uint8_t return_code = CommandRet::OK;
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std::string dname = EMSdevice::device_type_2_device_name(device_type);
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// see if there is a command registered
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auto cf = find_command(device_type, cmd);
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// check if its a call to and end-point to a device
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// except for system commands as this is a special device without any queryable entities (device values)
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if ((device_type > EMSdevice::DeviceType::SYSTEM) && (!value || !strlen(value))) {
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if (!cf || !cf->cmdfunction_json_) {
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#if defined(EMSESP_DEBUG)
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LOG_DEBUG(F("[DEBUG] Calling %s command '%s' to retrieve attributes"), dname.c_str(), cmd);
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#endif
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return EMSESP::get_device_value_info(output, cmd, id, device_type) ? CommandRet::OK : CommandRet::ERROR; // entity = cmd
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}
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}
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// check if we have a matching command
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if (cf) {
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// check permissions
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if (cf->has_flags(CommandFlag::ADMIN_ONLY) && !is_admin) {
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output["message"] = "authentication failed";
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return CommandRet::NOT_ALLOWED; // command not allowed
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}
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if ((value == nullptr) || (strlen(value) == 0)) {
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if (EMSESP::system_.readonly_mode()) {
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LOG_INFO(F("[readonly] Calling command '%s/%s' (%s)"), dname.c_str(), cmd, read_flash_string(cf->description_).c_str());
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} else {
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LOG_DEBUG(F("Calling command '%s/%s' (%s)"), dname.c_str(), cmd, read_flash_string(cf->description_).c_str());
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}
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} else {
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if (EMSESP::system_.readonly_mode()) {
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LOG_INFO(F("[readonly] Calling command '%s/%s' (%s) with value %s"), dname.c_str(), cmd, read_flash_string(cf->description_).c_str(), value);
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} else {
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LOG_DEBUG(F("Calling command '%s/%s' (%s) with value %s"), dname.c_str(), cmd, read_flash_string(cf->description_).c_str(), value);
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}
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}
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// call the function based on type
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if (cf->cmdfunction_json_) {
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return_code = ((cf->cmdfunction_json_)(value, id, output)) ? CommandRet::OK : CommandRet::ERROR;
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}
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if (cf->cmdfunction_ && !EMSESP::cmd_is_readonly(device_type, cmd, id)) {
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return_code = ((cf->cmdfunction_)(value, id)) ? CommandRet::OK : CommandRet::ERROR;
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}
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// report back
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if (return_code != CommandRet::OK) {
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return message(return_code, "callback function failed", output);
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}
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return return_code;
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}
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// we didn't find the command and its not an endpoint, report error
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LOG_DEBUG(F("Command failed: invalid command '%s'"), cmd);
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return message(CommandRet::NOT_FOUND, "invalid command", output);
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}
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// add a command to the list, which does not return json
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void Command::add(const uint8_t device_type, const __FlashStringHelper * cmd, const cmd_function_p cb, const __FlashStringHelper * description, uint8_t flags) {
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// if the command already exists for that device type don't add it
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if (find_command(device_type, read_flash_string(cmd).c_str()) != nullptr) {
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return;
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}
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// if the description is empty, it's hidden which means it will not show up in Web API or Console as an available command
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if (!description) {
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flags |= CommandFlag::HIDDEN;
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}
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cmdfunctions_.emplace_back(device_type, flags, cmd, cb, nullptr, description); // callback for json is nullptr
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}
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// add a command to the list, which does return a json object as output
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void Command::add(const uint8_t device_type, const __FlashStringHelper * cmd, const cmd_json_function_p cb, const __FlashStringHelper * description, uint8_t flags) {
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// if the command already exists for that device type don't add it
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if (find_command(device_type, read_flash_string(cmd).c_str()) != nullptr) {
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return;
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}
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cmdfunctions_.emplace_back(device_type, flags, cmd, nullptr, cb, description); // callback for json is included
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}
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// see if a command exists for that device type
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// is not case sensitive
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Command::CmdFunction * Command::find_command(const uint8_t device_type, const char * cmd) {
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if ((cmd == nullptr) || (strlen(cmd) == 0) || (cmdfunctions_.empty())) {
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return nullptr;
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}
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// convert cmd to lowercase and compare
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char lowerCmd[30];
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strlcpy(lowerCmd, cmd, sizeof(lowerCmd));
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for (char * p = lowerCmd; *p; p++) {
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*p = tolower(*p);
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}
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for (auto & cf : cmdfunctions_) {
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if (!strcmp(lowerCmd, Helpers::toLower(read_flash_string(cf.cmd_)).c_str()) && (cf.device_type_ == device_type)) {
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return &cf;
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}
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}
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return nullptr; // command not found
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}
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// list all commands for a specific device, output as json
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bool Command::list(const uint8_t device_type, JsonObject & output) {
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if (cmdfunctions_.empty()) {
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output["message"] = "no commands available";
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return false;
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}
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// create a list of commands, sort them
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std::list<std::string> sorted_cmds;
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for (const auto & cf : cmdfunctions_) {
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if ((cf.device_type_ == device_type) && !cf.has_flags(CommandFlag::HIDDEN)) {
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sorted_cmds.push_back(read_flash_string(cf.cmd_));
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}
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}
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sorted_cmds.sort();
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for (const auto & cl : sorted_cmds) {
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for (const auto & cf : cmdfunctions_) {
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if ((cf.device_type_ == device_type) && !cf.has_flags(CommandFlag::HIDDEN) && cf.description_ && (cl == read_flash_string(cf.cmd_))) {
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output[cl] = cf.description_;
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}
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}
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}
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return true;
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}
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// output list of all commands to console for a specific DeviceType
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void Command::show(uuid::console::Shell & shell, uint8_t device_type, bool verbose) {
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if (cmdfunctions_.empty()) {
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shell.println(F("No commands available"));
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return;
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}
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// create a list of commands, sort them
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std::list<std::string> sorted_cmds;
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for (const auto & cf : cmdfunctions_) {
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if ((cf.device_type_ == device_type) && !cf.has_flags(CommandFlag::HIDDEN)) {
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sorted_cmds.push_back(read_flash_string(cf.cmd_));
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}
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}
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sorted_cmds.sort();
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// if not in verbose mode, just print them on a single line
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if (!verbose) {
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for (const auto & cl : sorted_cmds) {
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shell.print(cl);
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shell.print(" ");
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}
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shell.println();
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return;
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}
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// verbose mode
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shell.println();
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for (const auto & cl : sorted_cmds) {
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// find and print the description
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for (const auto & cf : cmdfunctions_) {
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if ((cf.device_type_ == device_type) && !cf.has_flags(CommandFlag::HIDDEN) && cf.description_ && (cl == read_flash_string(cf.cmd_))) {
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uint8_t i = cl.length();
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shell.print(" ");
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if (cf.has_flags(MQTT_SUB_FLAG_HC)) {
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shell.print("[hc<n>.]");
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i += 8;
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} else if (cf.has_flags(MQTT_SUB_FLAG_WWC)) {
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shell.print("[wwc<n>.]");
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i += 9;
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}
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shell.print(cl);
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// pad with spaces
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while (i++ < 22) {
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shell.print(' ');
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}
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shell.print(COLOR_BRIGHT_CYAN);
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if (cf.has_flags(MQTT_SUB_FLAG_WW)) {
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shell.print(EMSdevice::tag_to_string(DeviceValueTAG::TAG_DEVICE_DATA_WW));
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shell.print(' ');
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}
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shell.print(read_flash_string(cf.description_).c_str());
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if (!cf.has_flags(CommandFlag::ADMIN_ONLY)) {
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shell.print(' ');
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shell.print(COLOR_BRIGHT_RED);
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shell.print('*');
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}
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shell.print(COLOR_RESET);
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}
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}
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shell.println();
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}
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shell.println();
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}
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// see if a device_type is active and has associated commands
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// returns false if the device has no commands
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bool Command::device_has_commands(const uint8_t device_type) {
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if (device_type == EMSdevice::DeviceType::UNKNOWN) {
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return false;
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}
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if (device_type == EMSdevice::DeviceType::SYSTEM) {
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return true; // we always have System
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}
|
|
|
|
if (device_type == EMSdevice::DeviceType::DALLASSENSOR) {
|
|
return (EMSESP::dallassensor_.have_sensors());
|
|
}
|
|
|
|
if (device_type == EMSdevice::DeviceType::ANALOGSENSOR) {
|
|
return (EMSESP::analogsensor_.have_sensors());
|
|
}
|
|
|
|
for (const auto & emsdevice : EMSESP::emsdevices) {
|
|
if (emsdevice && (emsdevice->device_type() == device_type)) {
|
|
// device found, now see if it has any commands
|
|
for (const auto & cf : cmdfunctions_) {
|
|
if (cf.device_type_ == device_type) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// list sensors and EMS devices
|
|
void Command::show_devices(uuid::console::Shell & shell) {
|
|
shell.printf("%s ", EMSdevice::device_type_2_device_name(EMSdevice::DeviceType::SYSTEM).c_str());
|
|
|
|
if (EMSESP::dallassensor_.have_sensors()) {
|
|
shell.printf("%s ", EMSdevice::device_type_2_device_name(EMSdevice::DeviceType::DALLASSENSOR).c_str());
|
|
}
|
|
if (EMSESP::analogsensor_.have_sensors()) {
|
|
shell.printf("%s ", EMSdevice::device_type_2_device_name(EMSdevice::DeviceType::ANALOGSENSOR).c_str());
|
|
}
|
|
|
|
for (const auto & device_class : EMSFactory::device_handlers()) {
|
|
for (const auto & emsdevice : EMSESP::emsdevices) {
|
|
if (emsdevice && (emsdevice->device_type() == device_class.first) && (device_has_commands(device_class.first))) {
|
|
shell.printf("%s ", EMSdevice::device_type_2_device_name(device_class.first).c_str());
|
|
break; // we only want to show one (not multiple of the same device types)
|
|
}
|
|
}
|
|
}
|
|
shell.println();
|
|
}
|
|
|
|
// output list of all commands to console
|
|
// calls show with verbose mode set
|
|
void Command::show_all(uuid::console::Shell & shell) {
|
|
shell.println(F("Available commands (*=do not need authorization): "));
|
|
|
|
// show system first
|
|
shell.print(COLOR_BOLD_ON);
|
|
shell.print(COLOR_YELLOW);
|
|
shell.printf(" %s: ", EMSdevice::device_type_2_device_name(EMSdevice::DeviceType::SYSTEM).c_str());
|
|
shell.print(COLOR_RESET);
|
|
show(shell, EMSdevice::DeviceType::SYSTEM, true);
|
|
|
|
// show sensors
|
|
if (EMSESP::dallassensor_.have_sensors()) {
|
|
shell.print(COLOR_BOLD_ON);
|
|
shell.print(COLOR_YELLOW);
|
|
shell.printf(" %s: ", EMSdevice::device_type_2_device_name(EMSdevice::DeviceType::DALLASSENSOR).c_str());
|
|
shell.print(COLOR_RESET);
|
|
show(shell, EMSdevice::DeviceType::DALLASSENSOR, true);
|
|
}
|
|
if (EMSESP::analogsensor_.have_sensors()) {
|
|
shell.print(COLOR_BOLD_ON);
|
|
shell.print(COLOR_YELLOW);
|
|
shell.printf(" %s: ", EMSdevice::device_type_2_device_name(EMSdevice::DeviceType::ANALOGSENSOR).c_str());
|
|
shell.print(COLOR_RESET);
|
|
show(shell, EMSdevice::DeviceType::ANALOGSENSOR, true);
|
|
}
|
|
|
|
// do this in the order of factory classes to keep a consistent order when displaying
|
|
for (const auto & device_class : EMSFactory::device_handlers()) {
|
|
if (Command::device_has_commands(device_class.first)) {
|
|
shell.print(COLOR_BOLD_ON);
|
|
shell.print(COLOR_YELLOW);
|
|
shell.printf(" %s: ", EMSdevice::device_type_2_device_name(device_class.first).c_str());
|
|
shell.print(COLOR_RESET);
|
|
show(shell, device_class.first, true);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Extract only the path component from the passed URI and normalized it
|
|
// e.g. //one/two////three/// becomes /one/two/three
|
|
std::string SUrlParser::path() {
|
|
std::string s = "/"; // set up the beginning slash
|
|
for (const std::string & f : m_folders) {
|
|
s += f;
|
|
s += "/";
|
|
}
|
|
s.pop_back(); // deleting last letter, that is slash '/'
|
|
return std::string(s);
|
|
}
|
|
|
|
SUrlParser::SUrlParser(const char * uri) {
|
|
parse(uri);
|
|
}
|
|
|
|
bool SUrlParser::parse(const char * uri) {
|
|
if (uri == nullptr) {
|
|
return false;
|
|
}
|
|
|
|
if (*uri == '\0') {
|
|
return false;
|
|
}
|
|
|
|
m_folders.clear();
|
|
m_keysvalues.clear();
|
|
enum Type { begin, folder, param, value };
|
|
std::string s;
|
|
|
|
const char * c = uri;
|
|
enum Type t = Type::begin;
|
|
std::string last_param;
|
|
|
|
do {
|
|
if (*c == '/') {
|
|
if (s.length() > 0) {
|
|
m_folders.push_back(s);
|
|
s.clear();
|
|
}
|
|
t = Type::folder;
|
|
} else if (*c == '?' && (t == Type::folder || t == Type::begin)) {
|
|
if (s.length() > 0) {
|
|
m_folders.push_back(s);
|
|
s.clear();
|
|
}
|
|
t = Type::param;
|
|
} else if (*c == '=' && (t == Type::param || t == Type::begin)) {
|
|
m_keysvalues[s] = "";
|
|
last_param = s;
|
|
s.clear();
|
|
t = Type::value;
|
|
} else if (*c == '&' && (t == Type::value || t == Type::param || t == Type::begin)) {
|
|
if (t == Type::value) {
|
|
m_keysvalues[last_param] = s;
|
|
} else if ((t == Type::param || t == Type::begin) && (s.length() > 0)) {
|
|
m_keysvalues[s] = "";
|
|
last_param = s;
|
|
}
|
|
t = Type::param;
|
|
s.clear();
|
|
} else if (*c == '\0' && s.length() > 0) {
|
|
if (t == Type::value) {
|
|
m_keysvalues[last_param] = s;
|
|
} else if (t == Type::folder || t == Type::begin) {
|
|
m_folders.push_back(s);
|
|
} else if (t == Type::param) {
|
|
m_keysvalues[s] = "";
|
|
last_param = s;
|
|
}
|
|
s.clear();
|
|
} else if (*c == '\0' && s.length() == 0) {
|
|
if (t == Type::param && last_param.length() > 0) {
|
|
m_keysvalues[last_param] = "";
|
|
}
|
|
s.clear();
|
|
} else {
|
|
s += *c;
|
|
}
|
|
} while (*c++ != '\0');
|
|
|
|
return true;
|
|
}
|
|
|
|
} // namespace emsesp
|