First effort in creating a rest API
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fillotassi
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3 changed files with 231 additions and 0 deletions
140
gadgety_esp8266_embedded_HTML.ino
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140
gadgety_esp8266_embedded_HTML.ino
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#include <DNSServer.h>
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#include <ESP8266WiFi.h>
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#include <WiFiClient.h>
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#include <ESP8266WebServer.h>
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//#include <FS.h>
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#include "index_html.h"
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#include <list>
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using namespace std;
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#define TIMESTEPS 80000 // 1 millisecond
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#define LINES_NUM 8
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typedef unsigned int line_time_t;
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enum {
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EVENT_NOTEON,
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EVENT_NOTEOFF,
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EVENT_JUMP,
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EVENT_BARRIER,
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EVENT_ENVELOPE // Todo
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};
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typedef struct {
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unsigned type;
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line_time_t time;
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unsigned tone;
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line_time_t new_cursor;
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unsigned lines_mask;
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} event_t;
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typedef struct {
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line_time_t cursor;
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// ADSR? Other line/synth parameters?
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list<event_t> events;
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list<event_t>::iterator next_event;
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} line_t;
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// Todo: jsonify() and unjsonify()
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line_t lines[LINES_NUM];
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void sequencer_init(void)
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{
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unsigned i;
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for(i = 0; i < LINES_NUM; ++i) {
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lines[i].cursor = 0;
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lines[i].next_event = lines[i].events.begin();
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}
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pinMode(2, OUTPUT);
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}
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// Call every TIMESTEPS seconds
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void sequencer_main_loop(void)
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{
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unsigned i;
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// Restart main loop timer
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timer0_write(ESP.getCycleCount() + TIMESTEPS);
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for(i = 0; i < LINES_NUM; ++i) {
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while(lines[i].next_event != lines[i].events.end() && lines[i].next_event->time == lines[i].cursor) {
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// Peform event: lines[i].next_event
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// ...
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++lines[i].next_event;
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}
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if(lines[i].next_event != lines[i].events.end())
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++lines[i].cursor;
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}
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digitalWrite(2, !digitalRead(2));
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}
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const byte DNS_PORT = 53;
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ESP8266WebServer server(80); //Server on port 80
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IPAddress myIP = WiFi.softAPIP(); //Get IP address
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DNSServer dnsServer;
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void redirect_index()
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{
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server.sendHeader("Location", "/");
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server.send(301);
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}
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void serve_index()
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{
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server.sendHeader("Content-Encoding", "gzip");
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server.send_P(200, "text/html", (const char*)index_html_gz, index_html_gz_len);
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}
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void serve_random()
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{
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server.send(200, "application/json", "{ \"val\": " + String(rand()) + " }");
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}
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void setup()
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{
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// Start sequencer
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sequencer_init();
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noInterrupts();
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timer0_isr_init();
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timer0_attachInterrupt(sequencer_main_loop);
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timer0_write(ESP.getCycleCount() + TIMESTEPS);
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interrupts();
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// SPIFFS.begin();
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Serial.begin(115200);
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WiFi.mode(WIFI_AP); //Only Access point
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WiFi.softAP("Gadgety", "gadgety123"); //Start HOTspot removing password will disable security
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// server.on("/", handleRoot); //Which routine to handle at root location
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server.onNotFound([]() {
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// handleRoot();
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});
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server.begin(); //Start server
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//server.serveStatic("/", SPIFFS, "/index.html");
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server.onNotFound(redirect_index);
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server.on("/index.html", serve_index);
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server.on("/", serve_index);
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server.on("/random.ws", serve_random);
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dnsServer.start(DNS_PORT, "www.gadgety.com", myIP);
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}
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void loop() {
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dnsServer.processNextRequest();
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server.handleClient(); //Handle client requests
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if (server.arg(1)=="1") {
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Serial.print("Acceso");
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} else if (server.arg(1)=="0") {
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Serial.print("Spento");
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}
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}
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// void handleRoot() {
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// server.send (200, "text/html", index.html);
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// }
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37
index.html
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index.html
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<!doctype html>
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta charset="utf-8">
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<meta http-equiv="x-ua-compatible" content="ie=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
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<title>Random generator</title>
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<style>
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/*=======================COMUNE=====================*/
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html{
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width: 100%;
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height: 100%;
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}
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</style>
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</head>
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<body>
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<h2>Random number generator (hurray!)</h2>
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<input type="button" value="Generate" onclick="receive_random()">
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<p id="value">Press to generate new value</p>
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<script type="text/javascript">
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function receive_random() {
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var xmlhttp = new XMLHttpRequest();
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xmlhttp.onreadystatechange = function() {
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if(this.readyState == 4 && this.status == 200) {
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var result = JSON.parse(this.responseText);
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console.log(result);
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document.getElementById("value").innerHTML = result.val;
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}
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};
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xmlhttp.open("GET", "/random.ws", true);
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xmlhttp.send();
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}
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</script>
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</body>
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</html>
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54
index_html.h
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54
index_html.h
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unsigned char PROGMEM index_html_gz[] = {
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0x1f, 0x8b, 0x08, 0x08, 0x4a, 0x96, 0x5c, 0x5b, 0x00, 0x03, 0x69, 0x6e,
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0x64, 0x65, 0x78, 0x2e, 0x68, 0x74, 0x6d, 0x6c, 0x00, 0x6d, 0x54, 0xcb,
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0x6e, 0xdb, 0x30, 0x10, 0x3c, 0xd7, 0x5f, 0xb1, 0x21, 0xd0, 0x40, 0x0e,
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0x22, 0xc9, 0x4e, 0x7b, 0x68, 0x62, 0xd1, 0x87, 0x16, 0x41, 0xd2, 0x22,
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0x8f, 0x22, 0x49, 0x81, 0xde, 0x0a, 0x59, 0x5a, 0x4b, 0x6c, 0x25, 0x52,
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0x25, 0x57, 0x92, 0x8d, 0x20, 0xff, 0x5e, 0x52, 0x94, 0x61, 0x37, 0x88,
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0x2f, 0xe2, 0x2e, 0x67, 0x66, 0xd7, 0xa3, 0xb1, 0x93, 0xa3, 0x5c, 0x65,
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0xb4, 0x6d, 0x10, 0x4a, 0xaa, 0xab, 0xe5, 0x24, 0x71, 0x0f, 0xd8, 0xd4,
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0x95, 0x34, 0x9c, 0x95, 0x44, 0xcd, 0x45, 0x1c, 0xf7, 0x7d, 0x1f, 0xf5,
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0x1f, 0x22, 0xa5, 0x8b, 0x78, 0x7e, 0x7e, 0x7e, 0x1e, 0x6f, 0x1c, 0x86,
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0x39, 0x2c, 0xa6, 0xf9, 0x72, 0x02, 0x90, 0xd4, 0x48, 0x29, 0x64, 0x65,
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0xaa, 0x0d, 0x12, 0x67, 0x2d, 0xad, 0xc3, 0x4f, 0x6c, 0x7f, 0xe1, 0x64,
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0x42, 0xfc, 0xdb, 0x8a, 0x8e, 0xb3, 0x4d, 0xd8, 0xa6, 0x61, 0xa6, 0xea,
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0x26, 0x25, 0xb1, 0xaa, 0x90, 0x41, 0xa6, 0x24, 0xa1, 0xb4, 0x2c, 0x81,
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0x1c, 0xf3, 0x02, 0x0f, 0x78, 0x32, 0xad, 0x91, 0xb3, 0x4e, 0x60, 0xdf,
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0x28, 0x4d, 0x07, 0xd0, 0x5e, 0xe4, 0x54, 0xf2, 0x1c, 0x3b, 0x91, 0x61,
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0x38, 0x14, 0xa7, 0x20, 0xa4, 0x20, 0x91, 0x56, 0xa1, 0xc9, 0xd2, 0x0a,
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0xf9, 0xfc, 0x14, 0x76, 0xbc, 0x70, 0x2d, 0x88, 0x67, 0xaa, 0x43, 0xed,
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0xa5, 0x49, 0x50, 0x85, 0xcb, 0x87, 0x54, 0xe6, 0xaa, 0x86, 0x02, 0x25,
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0xea, 0x94, 0x94, 0x4e, 0x62, 0xdf, 0x77, 0x08, 0x43, 0x5b, 0x7f, 0x8a,
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0x4f, 0xf8, 0xdb, 0x9f, 0x2f, 0xf7, 0xb7, 0x3f, 0xee, 0x2e, 0xdf, 0xbc,
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0x3a, 0x89, 0x27, 0x96, 0xe9, 0x1c, 0x7a, 0xb6, 0xcf, 0x77, 0xc3, 0x76,
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0x17, 0x30, 0x9f, 0xcd, 0xde, 0x2f, 0x5c, 0x5d, 0xa2, 0x28, 0x4a, 0xda,
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0x37, 0x5e, 0xdc, 0xc0, 0x78, 0x9c, 0x98, 0xc4, 0xde, 0xd1, 0x64, 0xa5,
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0xf2, 0xed, 0xb0, 0x4a, 0x79, 0xb6, 0xdb, 0x54, 0xb6, 0xf5, 0x0a, 0xf5,
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0x7e, 0x61, 0x08, 0xca, 0x56, 0xeb, 0x74, 0x7b, 0x34, 0xb5, 0xac, 0xb3,
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0x01, 0x2c, 0x64, 0xd3, 0x12, 0xb8, 0x97, 0xc9, 0xd9, 0xaa, 0x25, 0x52,
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0x92, 0x41, 0x97, 0x56, 0xad, 0x2d, 0xaf, 0x3c, 0xcd, 0xfa, 0xad, 0x64,
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0x56, 0x89, 0xec, 0x0f, 0x67, 0x1a, 0x33, 0x14, 0x1d, 0xfe, 0xd2, 0x83,
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0x7e, 0x30, 0xf5, 0xee, 0x34, 0x20, 0x72, 0xeb, 0xb9, 0x63, 0xb1, 0xe5,
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0x77, 0x8d, 0xc6, 0x00, 0xa9, 0xdd, 0x54, 0x04, 0x89, 0xbd, 0x97, 0x4c,
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0xe2, 0xc6, 0x7b, 0x95, 0x69, 0xd1, 0xec, 0x86, 0x12, 0x6e, 0x28, 0xfe,
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0x9d, 0x76, 0xa9, 0xef, 0x0e, 0x8a, 0x00, 0xeb, 0x56, 0x66, 0x24, 0x94,
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0x84, 0xd7, 0x13, 0xe1, 0x79, 0xb8, 0x07, 0xab, 0xa8, 0x5d, 0xe4, 0x5c,
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0x4e, 0x80, 0x0f, 0x33, 0x7e, 0xde, 0xde, 0x5c, 0xdb, 0xea, 0xc1, 0xa6,
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0x06, 0x0d, 0x05, 0xd3, 0xc5, 0x64, 0x84, 0x8e, 0xb0, 0x48, 0x49, 0x6d,
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0xad, 0xda, 0x1a, 0xb2, 0x5b, 0xd9, 0xe0, 0xc9, 0x02, 0x2d, 0x73, 0x37,
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0xe9, 0x40, 0x1a, 0x40, 0xac, 0x03, 0x2a, 0x85, 0x89, 0x06, 0xfc, 0xa3,
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0xc3, 0x03, 0xe7, 0xf0, 0x11, 0x8e, 0x8f, 0x61, 0xe8, 0x3b, 0x89, 0xd6,
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0xb8, 0xde, 0xd9, 0x6c, 0x76, 0x48, 0xf4, 0x7b, 0x59, 0x0b, 0xda, 0x8a,
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0xac, 0xf8, 0xb7, 0xc7, 0xfb, 0xbb, 0xa8, 0x71, 0x11, 0xdf, 0xe9, 0x99,
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0x46, 0x49, 0x83, 0x4f, 0xf6, 0x4b, 0x4f, 0x17, 0x07, 0x2c, 0x1b, 0x53,
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0xa3, 0x2a, 0x8c, 0x2a, 0x55, 0x04, 0x9e, 0xfd, 0xdf, 0xb5, 0xfd, 0xbd,
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0xb5, 0xb5, 0x8d, 0x71, 0x54, 0x20, 0x5d, 0x56, 0xe8, 0x8e, 0x9f, 0xb7,
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0x5f, 0xf3, 0x60, 0x34, 0x7d, 0x1a, 0x09, 0x69, 0xcd, 0xbe, 0x7e, 0xba,
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0xbd, 0xb1, 0x43, 0x3d, 0x3f, 0xb2, 0x57, 0x7b, 0x89, 0x97, 0xf1, 0xf4,
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0xb2, 0x78, 0xed, 0x49, 0x83, 0x32, 0x60, 0x57, 0x97, 0x4f, 0xec, 0x14,
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0x58, 0xec, 0x5d, 0x8e, 0x7a, 0x63, 0x2b, 0xd2, 0x2d, 0x4e, 0x5f, 0xc3,
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0x0d, 0xca, 0x3c, 0x18, 0xbb, 0x63, 0x0c, 0x87, 0xd7, 0xe6, 0x72, 0xe8,
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0x03, 0x68, 0x93, 0x35, 0xfc, 0x29, 0xfc, 0x03, 0xa3, 0xe0, 0x3b, 0xbc,
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0x25, 0x04, 0x00, 0x00
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};
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unsigned int index_html_gz_len = 604;
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