Files
deckenlampe/main/webserver.cpp
T
2021-08-06 15:50:44 +02:00

591 lines
21 KiB
C++

#include "webserver.h"
// system includes
#include <string_view>
#include <string>
#include <atomic>
// esp-idf includes
#include <esp_log.h>
// 3rdparty lib includes
#include <fmt/core.h>
// local includes
#include "myconfig.h"
#include "feature_lamp.h"
#include "feature_switch.h"
#include "feature_dht.h"
#include "feature_tsl.h"
#include "feature_bmp.h"
#include "mymqtt.h"
#include "espwifistack.h"
#include "espcppmacros.h"
#include "espstrutils.h"
#include "strutils.h"
#include "espchrono.h"
#include "numberparsing.h"
#include "myota.h"
#include "espasyncota.h"
namespace deckenlampe {
httpd_handle_t httpdHandle;
namespace {
constexpr const char * const TAG = "WEBSERVER";
template<typename T> T htmlentities(const T &val) { return val; } // TODO
template<typename T> T htmlentities(T &&val) { return val; } // TODO
std::atomic<bool> shouldReboot;
esp_err_t webserver_root_handler(httpd_req_t *req);
esp_err_t webserver_on_handler(httpd_req_t *req);
esp_err_t webserver_off_handler(httpd_req_t *req);
esp_err_t webserver_toggle_handler(httpd_req_t *req);
esp_err_t webserver_reboot_handler(httpd_req_t *req);
} // namespace
void init_webserver()
{
if (!config::enable_webserver.value())
return;
{
httpd_config_t httpConfig HTTPD_DEFAULT_CONFIG();
httpConfig.core_id = 1;
const auto result = httpd_start(&httpdHandle, &httpConfig);
ESP_LOG_LEVEL_LOCAL((result == ESP_OK ? ESP_LOG_INFO : ESP_LOG_ERROR), TAG, "httpd_start(): %s", esp_err_to_name(result));
if (result != ESP_OK)
return;
}
for (const httpd_uri_t &uri : {
httpd_uri_t { .uri = "/", .method = HTTP_GET, .handler = webserver_root_handler, .user_ctx = NULL },
httpd_uri_t { .uri = "/on", .method = HTTP_GET, .handler = webserver_on_handler, .user_ctx = NULL },
httpd_uri_t { .uri = "/off", .method = HTTP_GET, .handler = webserver_off_handler, .user_ctx = NULL },
httpd_uri_t { .uri = "/toggle", .method = HTTP_GET, .handler = webserver_toggle_handler, .user_ctx = NULL },
httpd_uri_t { .uri = "/reboot", .method = HTTP_GET, .handler = webserver_reboot_handler, .user_ctx = NULL }
})
{
const auto result = httpd_register_uri_handler(httpdHandle, &uri);
ESP_LOG_LEVEL_LOCAL((result == ESP_OK ? ESP_LOG_INFO : ESP_LOG_ERROR), TAG, "httpd_register_uri_handler() for %s: %s", uri.uri, esp_err_to_name(result));
//if (result != ESP_OK)
// return result;
}
}
void update_webserver()
{
if (!config::enable_webserver.value())
return;
if (shouldReboot)
{
shouldReboot = false;
esp_restart();
}
}
namespace {
esp_err_t webserver_dht_display(httpd_req_t *req, std::string &body);
esp_err_t webserver_tsl_display(httpd_req_t *req, std::string &body);
esp_err_t webserver_bmp_display(httpd_req_t *req, std::string &body);
esp_err_t webserver_wifi_display(httpd_req_t *req, std::string &body);
esp_err_t webserver_mqtt_display(httpd_req_t *req, std::string &body);
esp_err_t webserver_config_display(httpd_req_t *req, std::string &body, std::string_view query);
esp_err_t webserver_root_handler(httpd_req_t *req)
{
std::string query;
if (const size_t queryLength = httpd_req_get_url_query_len(req))
{
query.resize(queryLength);
CALL_AND_EXIT_ON_ERROR(httpd_req_get_url_query_str, req, query.data(), query.size() + 1)
}
std::string body;
if (config::enable_lamp.value())
{
body += "<a href=\"/on\">on</a><br/>\n"
"<a href=\"/off\">off</a><br/>\n"
"<a href=\"/toggle\">toggle</a><br/>\n";
}
body += "<a href=\"/reboot\">reboot</a><br/>\n"
"<br/>\n";
if (config::enable_lamp.value())
body += fmt::format("Lamp: {}<br/>\n", lampState ? "ON" : "OFF");
if (config::enable_switch.value())
body += fmt::format("Switch: {}<br/>\n", switchState ? "ON" : "OFF");
if (const auto result = webserver_dht_display(req, body); result != ESP_OK)
return result;
if (const auto result = webserver_tsl_display(req, body); result != ESP_OK)
return result;
if (const auto result = webserver_bmp_display(req, body); result != ESP_OK)
return result;
body += "<br/>\n";
if (const auto result = webserver_wifi_display(req, body); result != ESP_OK)
return result;
if (const auto result = webserver_mqtt_display(req, body); result != ESP_OK)
return result;
if (const auto result = webserver_config_display(req, body, query); result != ESP_OK)
return result;
CALL_AND_EXIT_ON_ERROR(httpd_resp_set_type, req, "text/html")
CALL_AND_EXIT(httpd_resp_send, req, body.data(), body.size())
}
esp_err_t webserver_dht_display(httpd_req_t *req, std::string &body)
{
if (config::enable_dht.value())
{
if (lastDhtValue)
{
body += fmt::format("DHT11 Temperature: {:.1f} C<br/>\n", lastDhtValue->temperature);
body += fmt::format("DHT11 Humidity: {:.1f} %<br/>\n", lastDhtValue->humidity);
}
else
body += "DHT11 not available at the moment<br/>\n";
}
return ESP_OK;
}
esp_err_t webserver_tsl_display(httpd_req_t *req, std::string &body)
{
if (config::enable_i2c.value() && config::enable_tsl.value())
{
if (lastTslValue)
{
body += fmt::format("TSL2561 Brightness: {:.1f} lux<br/>\n", lastTslValue->lux);
}
else
body += "TSL2561 not available at the moment<br/>\n";
}
return ESP_OK;
}
esp_err_t webserver_bmp_display(httpd_req_t *req, std::string &body)
{
if (config::enable_i2c.value() && config::enable_bmp.value())
{
if (lastBmpValue)
{
body += fmt::format("BMP085 Pressure: {:.1f} lux<br/>\n", lastBmpValue->pressure);
body += fmt::format("BMP085 Temperature: {:.1f} C<br/>\n", lastBmpValue->temperature);
body += fmt::format("BMP085 Altitude: {:.1f} m<br/>\n", lastBmpValue->altitude);
}
else
body += "BMP085 not available at the moment<br/>\n";
}
return ESP_OK;
}
esp_err_t webserver_wifi_display(httpd_req_t *req, std::string &body)
{
body += "<h2>wifi</h2>\n"
"<table border=\"1\">\n";
body += fmt::format("<tr><th>state machine state</th><td>{}</td></tr>\n", wifi_stack::toString(wifi_stack::wifiStateMachineState));
{
const auto staStatus = wifi_stack::get_sta_status();
body += fmt::format("<tr><th>STA status</th><td>{}</td></tr>\n", wifi_stack::toString(staStatus));
if (staStatus == wifi_stack::WiFiStaStatus::WL_CONNECTED)
{
if (const auto result = wifi_stack::get_sta_ap_info(); result)
{
body += fmt::format("<tr><th>STA rssi</th><td>{}dB</td></tr>\n", result->rssi);
body += fmt::format("<tr><th>STA SSID</th><td>{}</td></tr>\n", htmlentities(result->ssid));
body += fmt::format("<tr><th>STA channel</th><td>{}</td></tr>\n", result->primary);
body += fmt::format("<tr><th>STA BSSID</th><td>{}</td></tr>\n", wifi_stack::toString(wifi_stack::mac_t{result->bssid}));
}
else
{
body += fmt::format("<tr><td colspan=\"2\">get_sta_ap_info() failed: {}</td></tr>\n", htmlentities(result.error()));
}
if (const auto result = wifi_stack::get_ip_info(TCPIP_ADAPTER_IF_STA))
{
body += fmt::format("<tr><th>STA ip</th><td>{}</td></tr>\n", wifi_stack::toString(result->ip));
body += fmt::format("<tr><th>STA netmask</th><td>{}</td></tr>\n", wifi_stack::toString(result->netmask));
body += fmt::format("<tr><th>STA gw</th><td>{}</td></tr>\n", wifi_stack::toString(result->gw));
}
else
{
body += fmt::format("<tr><td colspan=\"2\">get_ip_info() failed: {}</td></tr>\n", htmlentities(result.error()));
}
}
}
body += fmt::format("<tr><th>scan status</th><td>{}</td></tr>\n", wifi_stack::toString(wifi_stack::get_scan_status()));
body += "</table>\n"
"<h3>scan result</h3>\n";
if (const auto &scanResult = wifi_stack::get_scan_result())
{
body += fmt::format("scan age: {}s<br />\n", std::chrono::round<std::chrono::seconds>(espchrono::ago(scanResult->finished)).count());
body += "<table border=\"1\">\n"
"<thead>\n"
"<tr>\n"
"<th>ssid</th>\n"
"<th>authmode</th>\n"
"<th>pairwise_cipher</th>\n"
"<th>group_cipher</th>\n"
"<th>rssi</th>\n"
"<th>channel</th>\n"
"<th>bssid</th>\n"
"</tr>\n"
"</thead>\n"
"<tbody>\n";
for (const auto &entry : scanResult->entries)
{
body += fmt::format(
"<tr>\n"
"<td>{}</td>\n"
"<td>{}</td>\n"
"<td>{}</td>\n"
"<td>{}</td>\n"
"<td>{}</td>\n"
"<td>{}</td>\n"
"<td>{}</td>\n"
"</tr>\n",
htmlentities(entry.ssid),
wifi_stack::toString(entry.authmode),
wifi_stack::toString(entry.pairwise_cipher),
wifi_stack::toString(entry.group_cipher),
entry.rssi,
entry.primary,
wifi_stack::toString(wifi_stack::mac_t{entry.bssid}));
}
body += "</tbody>\n"
"</table>\n";
}
else
{
body += "<span style=\"color: red;\">no wifi scan result at the moment!</span><br/>\n";
}
return ESP_OK;
}
esp_err_t webserver_mqtt_display(httpd_req_t *req, std::string &body)
{
if (config::enable_mqtt.value())
{
body += "<br/>\n"
"<h2>MQTT</h2>\n"
"<table border=\"1\">\n";
body += fmt::format("<tr><th>client url</th><td>{}</td></tr>\n", htmlentities(config::broker_url.value()));
body += fmt::format("<tr><th>client constructed</th><td>{}</td></tr>\n", mqttClient ? "true" : "false");
if (mqttClient)
{
body += fmt::format("<tr><th>client started</th><td>{}</td></tr>\n", mqttStarted ? "true" : "false");
body += fmt::format("<tr><th>client connected</th><td>{}</td></tr>\n", mqttConnected ? "true" : "false");
}
body += "</table>\n";
}
return ESP_OK;
}
template<typename T>
std::string webserver_form_for_config(httpd_req_t *req, ConfigWrapper<T> &config, std::string_view query)
{
return "<span style=\"color: red;\">form not implemented</span>";
}
template<>
std::string webserver_form_for_config(httpd_req_t *req, ConfigWrapper<bool> &config, std::string_view query)
{
std::string str;
{
char valueBufEncoded[256];
if (const auto result = httpd_query_key_value(query.data(), config.nvsKey(), valueBufEncoded, 256); result == ESP_OK)
{
char valueBuf[257];
espcpputils::urldecode(valueBuf, valueBufEncoded);
std::string_view value{valueBuf};
if (value == "true" || value == "false")
{
if (const auto result = config.writeToFlash(value == "true"))
str += "<span style=\"color: green;\">Successfully saved</span>";
else
str += fmt::format("<span style=\"color: red;\">Error while saving: {}</span>", htmlentities(result.error()));
}
else
{
str += fmt::format("<span style=\"color: red;\">Error while saving: Invalid value \"{}\"</span>", htmlentities(value));
}
}
else if (result != ESP_ERR_NOT_FOUND)
{
ESP_LOGE(TAG, "httpd_query_key_value() %s failed with %s", config.nvsKey(), esp_err_to_name(result));
str += fmt::format("<span style=\"color: red;\">Error while saving: httpd_query_key_value() failed with {}</span>", esp_err_to_name(result));
}
}
str += fmt::format("<form>"
"<input type=\"hidden\" name=\"{}\" value=\"false\" />"
"<input type=\"checkbox\" name=\"{}\" value=\"true\"{} />"
"<button type=\"submit\">Save</button>"
"</form>",
htmlentities(config.nvsKey()),
htmlentities(config.nvsKey()),
config.value() ? " checked" : "");
return str;
}
template<>
std::string webserver_form_for_config(httpd_req_t *req, ConfigWrapper<std::string> &config, std::string_view query)
{
std::string str;
{
char valueBufEncoded[256];
if (const auto result = httpd_query_key_value(query.data(), config.nvsKey(), valueBufEncoded, 256); result == ESP_OK)
{
char valueBuf[257];
espcpputils::urldecode(valueBuf, valueBufEncoded);
if (const auto result = config.writeToFlash(valueBuf))
str += "<span style=\"color: green;\">Successfully saved</span>";
else
str += fmt::format("<span style=\"color: red;\">Error while saving: {}</span>", htmlentities(result.error()));
}
else if (result != ESP_ERR_NOT_FOUND)
{
ESP_LOGE(TAG, "httpd_query_key_value() %s failed with %s", config.nvsKey(), esp_err_to_name(result));
str += fmt::format("<span style=\"color: red;\">Error while saving: httpd_query_key_value() failed with {}</span>", esp_err_to_name(result));
}
}
str += fmt::format("<form>"
"<input type=\"text\" name=\"{}\" value=\"{}\" />"
"<button type=\"submit\">Save</button>"
"</form>",
htmlentities(config.nvsKey()),
htmlentities(config.value()));
return str;
}
template<>
std::string webserver_form_for_config(httpd_req_t *req, ConfigWrapper<gpio_num_t> &config, std::string_view query)
{
std::string str;
{
char valueBufEncoded[256];
if (const auto result = httpd_query_key_value(query.data(), config.nvsKey(), valueBufEncoded, 256); result == ESP_OK)
{
char valueBuf[257];
espcpputils::urldecode(valueBuf, valueBufEncoded);
std::string_view value{valueBuf};
if (auto parsed = cpputils::fromString<std::underlying_type_t<gpio_num_t>>(value))
{
if (const auto result = config.writeToFlash(gpio_num_t(*parsed)))
str += "<span style=\"color: green;\">Successfully saved</span>";
else
str += fmt::format("<span style=\"color: red;\">Error while saving: {}</span>", htmlentities(result.error()));
}
else
{
str += fmt::format("<span style=\"color: red;\">Error while saving: Invalid value \"{}\"</span>", htmlentities(value));
}
}
else if (result != ESP_ERR_NOT_FOUND)
{
ESP_LOGE(TAG, "httpd_query_key_value() %s failed with %s", config.nvsKey(), esp_err_to_name(result));
}
}
str += fmt::format("<form>"
"<input type=\"number\" name=\"{}\" value=\"{}\" />"
"<button type=\"submit\">Save</button>"
"</form>",
htmlentities(config.nvsKey()),
config.value());
return str;
}
template<>
std::string webserver_form_for_config(httpd_req_t *req, ConfigWrapper<espchrono::seconds32> &config, std::string_view query)
{
std::string str;
{
char valueBufEncoded[256];
if (const auto result = httpd_query_key_value(query.data(), config.nvsKey(), valueBufEncoded, 256); result == ESP_OK)
{
char valueBuf[257];
espcpputils::urldecode(valueBuf, valueBufEncoded);
std::string_view value{valueBuf};
if (auto parsed = cpputils::fromString<espchrono::seconds32::rep>(value))
{
if (const auto result = config.writeToFlash(espchrono::seconds32(*parsed)))
str += "<span style=\"color: green;\">Successfully saved</span>";
else
str += fmt::format("<span style=\"color: red;\">Error while saving: {}</span>", htmlentities(result.error()));
}
else
{
str += fmt::format("<span style=\"color: red;\">Error while saving: Invalid value \"{}\"</span>", htmlentities(value));
}
}
else if (result != ESP_ERR_NOT_FOUND)
{
ESP_LOGE(TAG, "httpd_query_key_value() %s failed with %s", config.nvsKey(), esp_err_to_name(result));
}
}
str += fmt::format("<form>"
"<input type=\"number\" name=\"{}\" value=\"{}\" />"
"<button type=\"submit\">Save</button>"
"</form>",
htmlentities(config.nvsKey()),
config.value().count());
return str;
}
esp_err_t webserver_config_display(httpd_req_t *req, std::string &body, std::string_view query)
{
body += "<br/>\n"
"<h2>config</h2>\n"
"<table border=\"1\">\n"
"<thead>\n"
"<tr>\n"
"<th>name</th>\n"
//"<th>current value</th>\n"
"<th>set new value</th>\n"
"<th>value in flash</th>\n"
"</tr>\n"
"</thead>\n"
"<tbody>\n";
config::foreachConfig([&](auto &config) {
using cpputils::toString;
using espchrono::toString;
body += fmt::format("<tr>\n"
"<th>{}</th>\n"
//"<td>{}</td>\n"
"<td>{}</td>\n"
"<td>{}</td>\n"
"</tr>\n",
htmlentities(config.name()),
//htmlentities(toString(config.value())),
webserver_form_for_config(req, config, query),
[&]() -> std::string {
if (const auto result = config.readFromFlash())
{
if (*result)
return htmlentities(toString(**result));
else
return "<span style=\"color: grey;\">not set</span>";
}
else
return fmt::format("<span style=\"color: red\">{}</span>", htmlentities(result.error()));
}());
});
body += "</tbody>\n"
"</table>\n";
return ESP_OK;
}
esp_err_t webserver_on_handler(httpd_req_t *req)
{
if (!config::enable_lamp.value())
{
ESP_LOGW(TAG, "lamp support not enabled!");
CALL_AND_EXIT(httpd_resp_send_err, req, HTTPD_400_BAD_REQUEST, "lamp support not enabled!")
}
const bool state = (lampState = true);
writeLamp(state);
if (mqttConnected)
mqttVerbosePub(config::topic_lamp_status.value(), state ? "ON" : "OFF", 0, 1);
std::string_view body{"ON called..."};
CALL_AND_EXIT_ON_ERROR(httpd_resp_set_type, req, "text/html")
CALL_AND_EXIT(httpd_resp_send, req, body.data(), body.size())
}
esp_err_t webserver_off_handler(httpd_req_t *req)
{
if (!config::enable_lamp.value())
{
ESP_LOGW(TAG, "lamp support not enabled!");
CALL_AND_EXIT(httpd_resp_send_err, req, HTTPD_400_BAD_REQUEST, "lamp support not enabled!")
}
const bool state = (lampState = false);
writeLamp(state);
if (mqttConnected)
mqttVerbosePub(config::topic_lamp_status.value(), state ? "ON" : "OFF", 0, 1);
std::string_view body{"OFF called..."};
CALL_AND_EXIT_ON_ERROR(httpd_resp_set_type, req, "text/html")
CALL_AND_EXIT(httpd_resp_send, req, body.data(), body.size())
}
esp_err_t webserver_toggle_handler(httpd_req_t *req)
{
if (!config::enable_lamp.value())
{
ESP_LOGW(TAG, "lamp support not enabled!");
CALL_AND_EXIT(httpd_resp_send_err, req, HTTPD_400_BAD_REQUEST, "lamp support not enabled!")
}
const bool state = (lampState = !lampState);
writeLamp(state);
if (mqttConnected)
mqttVerbosePub(config::topic_lamp_status.value(), state ? "ON" : "OFF", 0, 1);
std::string_view body{"TOGGLE called..."};
CALL_AND_EXIT_ON_ERROR(httpd_resp_set_type, req, "text/html")
CALL_AND_EXIT(httpd_resp_send, req, body.data(), body.size())
}
esp_err_t webserver_reboot_handler(httpd_req_t *req)
{
shouldReboot = true;
std::string_view body{"REBOOT called..."};
CALL_AND_EXIT_ON_ERROR(httpd_resp_set_type, req, "text/html")
CALL_AND_EXIT(httpd_resp_send, req, body.data(), body.size())
}
} // namespace
} // namespace deckenlampe