203 lines
6.3 KiB
C
203 lines
6.3 KiB
C
#include <WiFi.h>
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#include "settings.h"
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const char* ssid = "TWANG_AP";
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const char* passphrase = "12345678";
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WiFiServer server(80);
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char linebuf[80];
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int charcount=0;
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enum PAGE_TO_SEND
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{
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Stats,
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Metrics
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};
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void ap_setup() {
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bool ret;
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/*
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* Set up an access point
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* @param ssid Pointer to the SSID (max 63 char).
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* @param passphrase (for WPA2 min 8 char, for open use NULL)
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* @param channel WiFi channel number, 1 - 13.
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* @param ssid_hidden Network cloaking (0 = broadcast SSID, 1 = hide SSID)
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*/
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ret = WiFi.softAP(ssid, passphrase, 2, 0);
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server.begin();
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Serial.print("\r\nWiFi SSID: ");
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Serial.println(ssid);
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Serial.print("WiFi Password: ");
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Serial.println(passphrase);
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Serial.println("Web Server Address: http://192.168.4.1");
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}
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void sendStatsPage(WiFiClient client) {
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// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
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// and a content-type so the client knows what's coming, then a blank line:
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client.println("HTTP/1.1 200 OK");
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client.println("Content-type:text/html");
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client.println();
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client.println("<html>");
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client.println("<body>");
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client.println("<h1>TWANG32 Play Stats</h1>");
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client.println("<ul>");
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client.print("<li>Games played: "); client.print(user_settings.games_played); client.println("</li>");
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if (user_settings.games_played > 0) { // prevent divide by 0
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client.print("<li>Average score: "); client.print(user_settings.total_points / user_settings.games_played); client.println("</li>");
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}
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client.print("<li>High score: "); client.print(user_settings.high_score); client.println("</li>");
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client.print("<li>Boss kills: "); client.print(user_settings.boss_kills); client.println("</li>");
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client.print("<button onClick=\"location.href = 'http://192.168.4.1'\">Refresh</button>");
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client.print("<h2>Adjustable Settings </h2>");
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client.print("<table>");
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client.print("<tr><td>");
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client.print("LED Count (60-");
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client.print(MAX_LEDS);
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client.print(")</td><td><form><input type='number' name='C' value='");
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client.print(user_settings.led_count);
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client.print ("' min='60' max='");
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client.print (MAX_LEDS);
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client.print ("'><input type='submit'></form></td></tr>");
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client.print("<tr><td>Brightness (10-255)</td><td><form><input type='number' name='B' value='");
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client.print(user_settings.led_brightness);
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client.print ("' min='10' max='255'><input type='submit'></form></td></tr>");
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client.print("<tr><td>Sound Volume (0-255)</td><td><form><input type='number' name='S' value='");
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client.print(user_settings.audio_volume);
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client.print("' min='0' max='255'><input type='submit'></form></td></tr>");
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client.print("<tr><td>Joystick Deadzone (3-12)</td><td><form><input type='number' name='D' value='");
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client.print(user_settings.joystick_deadzone);
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client.print("' min='3' max='12'><input type='submit'></form></td></tr>");
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client.print("<tr><td>Attack Sensitivity (20000-35000)</td><td><form><input type='number' name='A' value='");
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client.print(user_settings.attack_threshold);
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client.print("' min='2000' max='35000'><input type='submit'></form></td></tr>");
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client.print("<tr><td>Lives Per Level (3-9)</td><td><form><input type='number' name='L' value='");
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client.print(user_settings.lives_per_level);
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client.print("' min='3' max='9'><input type='submit'></form></td></tr>");
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client.print("</table>");
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#ifdef ENABLE_PROMETHEUS_METRICS_ENDPOINT
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client.println("<ul><li><a href=\"/metrics\">Metrics</a></li></ul>");
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#endif // ENABLE_PROMETHEUS_METRICS_ENDPOINT
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client.println("</body>");
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client.println("</html>");
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client.println();
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}
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#ifdef ENABLE_PROMETHEUS_METRICS_ENDPOINT
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// We need to use print() here since println() prints newlines as CR/LF, which
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// Prometheus cannot handle.
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#define __prom_metric(metric_name, metric_description, value) \
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client.print("# HELP " metric_name " " metric_description "\n"); \
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client.print("# TYPE " metric_name " gauge\n"); \
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client.print(metric_name " "); \
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client.print(value); \
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client.print("\n");
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static void sendMetricsPage(WiFiClient client)
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{
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client.println("HTTP/1.1 200 OK");
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client.println("Content-Type: text/plain; charset=utf-8");
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client.println("Server: twang_exporter");
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client.println();
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__prom_metric("twang_games_played", "Number of games played", user_settings.games_played);
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__prom_metric("twang_total_points", "Total points", user_settings.total_points);
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__prom_metric("twang_high_score", "High score", user_settings.high_score);
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__prom_metric("twang_boss_kills", "Boss kills", user_settings.boss_kills);
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}
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#undef __prom_metric
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#endif // ENABLE_PROMETHEUS_METRICS_ENDPOINT
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void ap_client_check(){
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int cnt;
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bool newconn=false;
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int stat;
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WiFiClient client = server.available(); // listen for incoming clients
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bool currentLineIsBlank = true;
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PAGE_TO_SEND page_to_send = Stats;
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while (client.connected()) {
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if (client.available()) {
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char c = client.read();
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linebuf[charcount]=c;
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if (charcount<sizeof(linebuf)-1)
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charcount++;
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if (c == '\n' && currentLineIsBlank)
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{
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switch (page_to_send)
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{
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case Stats:
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sendStatsPage(client);
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break;
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#ifdef ENABLE_PROMETHEUS_METRICS_ENDPOINT
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case Metrics:
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sendMetricsPage(client);
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break;
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#endif // ENABLE_PROMETHEUS_METRICS_ENDPOINT
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}
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break;
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}
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if (c == '\n') {
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// you're starting a new line
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currentLineIsBlank = true;
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if (strstr(linebuf,"GET /?") > 0)
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{
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String line = String(linebuf);
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int start = line.indexOf('=', 0);
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char paramCode = line.charAt(start - 1);
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int finish = line.indexOf('H', start+1)-1;
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String val = line.substring(start+1, finish);
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// if it is not numeric, it will convert to 0.
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// The the change_setting function will make sure the range is OK
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change_setting(paramCode, val.toInt());
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page_to_send = Stats;
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}
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#ifdef ENABLE_PROMETHEUS_METRICS_ENDPOINT
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else if (strstr(linebuf, "GET /metrics"))
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{
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page_to_send = Metrics;
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}
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#endif // ENABLE_PROMETHEUS_METRICS_ENDPOINT
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// you're starting a new line
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currentLineIsBlank = true;
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memset(linebuf,0,sizeof(linebuf));
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charcount=0;
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} else if (c != '\r') {
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// you've gotten a character on the current line
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currentLineIsBlank = false;
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}
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}
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}
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}
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