Move the HTTP server code to a new mode_pull module

2021-01-29 11:01:07 +01:00
parent 932e3d5d52
commit 3d249d2e05
5 changed files with 298 additions and 102 deletions
--- a/mode_pull.cpp
+++ b/mode_pull.cpp
@@ -0,0 +1,176 @@
+#include <ESP8266WebServer.h>
+
+#include "mode_pull.h"
+#include "config.h"
+
+#if defined(DHT_TYPE) || defined(HAVE_BMP180)
+float _temperature;
+#endif
+#ifdef DHT_TYPE
+float _humidity;
+#endif
+#ifdef HAVE_BH1750
+float _light;
+#endif
+#ifdef HAVE_BMP180
+float _pressure;
+#endif
+#ifdef RAIN_PIN
+bool _raining;
+#endif
+
+static const char MIME_TEXT[] PROGMEM = "text/plain";
+static const char MIME_METRICS[] PROGMEM = "text/plain; version=0.0.4; charset=utf-8";
+
+#if defined(DHT_TYPE) || defined(HAVE_BMP180)
+# define TEMPL_TEMPERATURE \
+    "# HELP temperature_celsius Temperature in degrees Celsius\n" \
+    "# TYPE temperature_celsius gauge\n" \
+    "temperature_celsius %.2f\n"
+#endif
+#ifdef DHT_TYPE
+# define TEMPL_HUMIDITY \
+    "# HELP relative_humidity Relative humidity, in percents\n" \
+    "# TYPE relative_humidity gauge\n" \
+    "relative_humidity %.2f\n"
+#endif
+#ifdef RAIN_PIN
+# define TEMPL_RAIN \
+    "# HELP raining Boolean value checking if it is raining\n" \
+    "# TYPE raining gauge\n" \
+    "raining %d\n"
+#endif
+#ifdef HAVE_BH1750
+# define TEMPL_LIGHT \
+    "# HELP light Ambient light, in lumens\n" \
+    "# TYPE light gauge\n" \
+    "light %.2f\n"
+#endif
+#ifdef HAVE_BMP180
+# define TEMPL_PRESSURE \
+    "# HELP pressure Atmospheric pressure, in Pa\n" \
+    "# TYPE pressure gauge\n" \
+    "pressure %d\n"
+#endif
+
+ESP8266WebServer server;
+
+static void
+_replyNotFound()
+{
+    server.send(404, FPSTR(MIME_TEXT), "Not Found");
+}
+
+static void
+_sendMetrics()
+{
+    size_t message_size =
+#if defined(DHT_TYPE) || defined(HAVE_BMP180)
+        sizeof(TEMPL_TEMPERATURE) +
+#endif // defined(DHT_TYPE) || defined(HAVE_BMP180)
+#ifdef DHT_TYPE
+        sizeof(TEMPL_HUMIDITY) +
+#endif // DHT_TYPE
+#ifdef RAIN_PIN
+        sizeof(TEMPL_RAIN) +
+#endif // RAIN_PIN
+#ifdef HAVE_BH1750
+        sizeof(TEMPL_LIGHT) +
+#endif // HAVE_BH1750
+#ifdef HAVE_BMP180
+        sizeof(TEMPL_PRESSURE) +
+#endif // HAVE_BMP180
+        1;
+    char message[message_size];
+
+    snprintf(message, message_size, ""
+#if defined(DHT_TYPE) || defined(HAVE_BMP180)
+             TEMPL_TEMPERATURE
+#endif // defined(DHT_TYPE) || defined(HAVE_BMP180)
+#ifdef DHT_TYPE
+             TEMPL_HUMIDITY
+#endif // DHT_TYPE
+#ifdef RAIN_PIN
+             TEMPL_RAIN
+#endif // RAIN_PIN
+#ifdef HAVE_BH1750
+             TEMPL_LIGHT
+#endif // HAVE_BH1750
+#ifdef HAVE_BMP180
+             TEMPL_PRESSURE
+#endif // HAVE_BMP180
+#if defined(DHT_TYPE) || defined(HAVE_BMP180)
+             , _temperature
+#endif // defined(DHT_TYPE) || defined(HAVE_BMP180)
+#ifdef DHT_TYPE
+             , _humidity
+#endif // DHT_TYPE
+#ifdef RAIN_PIN
+             , _raining ? 1 : 0
+#endif // RAIN_PIN
+#ifdef HAVE_BH1750
+             , _light_level
+#endif // HAVE_BH1750
+#ifdef HAVE_BMP180
+             , _pressure
+#endif // HAVE_BMP180
+        );
+
+    server.send(200, MIME_METRICS, message);
+}
+
+PWSModePull::PWSModePull(int port)
+{
+    _port = port;
+}
+
+void
+PWSModePull::begin()
+{
+    server.on("/metrics", HTTP_GET, _sendMetrics);
+    server.onNotFound(_replyNotFound);
+
+    server.begin(_port);
+}
+
+void
+PWSModePull::loop()
+{
+    server.handleClient();
+}
+
+void
+PWSModePull::sendValues(
+#if defined(DHT_TYPE) || defined(HAVE_BMP180)
+    float temperature,
+#endif
+#ifdef DHT_TYPE
+    float humidity,
+#endif
+#ifdef RAIN_PIN
+    bool raining,
+#endif
+#ifdef HAVE_BH1750
+    float light,
+#endif
+#ifdef HAVE_BMP180
+    float pressure,
+#endif
+    ...)
+{
+#if defined(DHT_TYPE) || defined(HAVE_BMP180)
+    _temperature = temperature;
+#endif
+#ifdef DHT_TYPE
+    _humidity = humidity;
+#endif
+#ifdef RAIN_PIN
+    _raining = raining;
+#endif
+#ifdef HAVE_BH1750
+    _light = light;
+#endif
+#ifdef HAVE_BMP180
+    _pressure = pressure;
+#endif
+}