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2 raymond 1 
// SPDX-License-Identifier: LGPL-3.0-or-later
2 
// Copyright 2016-2026 Hristo Gochkov, Mathieu Carbou, Emil Muratov, Will Miles
3 
 
4 
//
5 
// Shows how to serve a static file
6 
//
7 
 
8 
#include <Arduino.h>
9 
#if defined(ESP32) || defined(LIBRETINY)
10 
#include <AsyncTCP.h>
11 
#include <WiFi.h>
12 
#elif defined(ESP8266)
13 
#include <ESP8266WiFi.h>
14 
#include <ESPAsyncTCP.h>
15 
#elif defined(TARGET_RP2040) || defined(TARGET_RP2350) || defined(PICO_RP2040) || defined(PICO_RP2350)
16 
#include <RPAsyncTCP.h>
17 
#include <WiFi.h>
18 
#endif
19 
 
20 
#include <ESPAsyncWebServer.h>
21 
#include <LittleFS.h>
22 
 
23 
static AsyncWebServer server(80);
24 
 
25 
static const char *htmlContent PROGMEM = R"(
26 
<!DOCTYPE html>
27 
<html>
28 
<head>
29 
    <title>Sample HTML</title>
30 
</head>
31 
<body>
32 
    <h1>Hello, World!</h1>
33 
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod
34 
    rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper
35 
    arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit
36 
    accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi.
37 
    Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo
38 
    dapibus elit, id varius sem dui id lacus.</p>
39 
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod
40 
    rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper
41 
    arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit
42 
    accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi.
43 
    Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo
44 
    dapibus elit, id varius sem dui id lacus.</p>
45 
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod
46 
    rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper
47 
    arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit
48 
    accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi.
49 
    Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo
50 
    dapibus elit, id varius sem dui id lacus.</p>
51 
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod
52 
    rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper
53 
    arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit
54 
    accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi.
55 
    Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo
56 
    dapibus elit, id varius sem dui id lacus.</p>
57 
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod
58 
    rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper
59 
    arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit
60 
    accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi.
61 
    Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo
62 
    dapibus elit, id varius sem dui id lacus.</p>
63 
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod
64 
    rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper
65 
    arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit
66 
    accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi.
67 
    Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo
68 
    dapibus elit, id varius sem dui id lacus.</p>
69 
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod
70 
    rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper
71 
    arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit
72 
    accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi.
73 
    Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo
74 
    dapibus elit, id varius sem dui id lacus.</p>
75 
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod
76 
    rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper
77 
    arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit
78 
    accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi.
79 
    Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo
80 
    dapibus elit, id varius sem dui id lacus.</p>
81 
</body>
82 
</html>
83 
)";
84 
 
85 
static const size_t htmlContentLength = strlen_P(htmlContent);
86 
 
87 
// sample_html_gz.h
88 
static const uint8_t index2_html_gz[] = {
89 
  0x1f, 0x8b, 0x08, 0x08, 0x13, 0x45, 0x92, 0x68, 0x00, 0x03, 0x69, 0x6e, 0x64, 0x65, 0x78, 0x32, 0x2e, 0x68, 0x74, 0x6d, 0x6c, 0x00, 0xed, 0x98, 0xcb,
90 
  0x6e, 0xdc, 0x30, 0x0c, 0x45, 0xf7, 0xf3, 0x15, 0xcc, 0xde, 0xb0, 0x91, 0xbd, 0xe1, 0x4d, 0x1f, 0x48, 0x81, 0xbc, 0x8a, 0x26, 0x2d, 0xba, 0xe4, 0x48,
91 
  0x8c, 0x87, 0x81, 0x1e, 0x0e, 0x25, 0x19, 0xc8, 0xdf, 0x97, 0xb2, 0x67, 0x82, 0x6c, 0xfa, 0x07, 0x32, 0x0c, 0x58, 0xa6, 0xa8, 0xcb, 0x4b, 0xe9, 0xac,
92 
  0x34, 0x5e, 0x7d, 0x7d, 0xf8, 0xf2, 0xf4, 0xf7, 0xf1, 0x1b, 0x9c, 0xb2, 0x77, 0xd3, 0x61, 0xbc, 0x7c, 0x08, 0xed, 0x74, 0x00, 0x7d, 0xc6, 0xcc, 0xd9,
93 
  0xd1, 0xf4, 0x0b, 0xfd, 0xe2, 0x08, 0x6e, 0x9e, 0xee, 0x6e, 0xc7, 0x61, 0x0f, 0x1d, 0xc6, 0x61, 0x4f, 0x1b, 0x8f, 0xd1, 0xbe, 0x9f, 0xb3, 0x4f, 0xd7,
94 
  0xd3, 0x0d, 0x39, 0x17, 0x3b, 0xf8, 0x13, 0xc5, 0xd9, 0x2b, 0xcd, 0xb9, 0x3e, 0x4f, 0x2d, 0xd3, 0x6d, 0x14, 0xf2, 0xc0, 0x4b, 0x2a, 0x1e, 0x6c, 0x74,
95 
  0x51, 0x20, 0x71, 0x06, 0xf4, 0x94, 0x3b, 0x30, 0x31, 0x24, 0x32, 0x99, 0x72, 0x11, 0x40, 0xcb, 0x0b, 0x27, 0xc3, 0x61, 0x06, 0x72, 0x9c, 0x7b, 0x78,
96 
  0x94, 0xc8, 0x01, 0xa8, 0x70, 0xf2, 0xd1, 0x76, 0xb0, 0x14, 0x29, 0x09, 0xf0, 0x12, 0xd8, 0xe4, 0xe5, 0x14, 0x83, 0x29, 0xa9, 0x83, 0x22, 0x01, 0xcf,
97 
  0x35, 0x4c, 0x91, 0xa4, 0x89, 0x1e, 0x53, 0xc2, 0x4e, 0xb3, 0xc1, 0xb2, 0xc9, 0x1a, 0xcf, 0xea, 0x50, 0xe3, 0xaf, 0x25, 0xe5, 0x08, 0x68, 0xf6, 0x41,
98 
  0x0f, 0x3f, 0x55, 0xee, 0xad, 0x10, 0x14, 0xe7, 0xd0, 0x9b, 0x28, 0x0b, 0xc9, 0x26, 0x8d, 0x62, 0x0a, 0x04, 0x32, 0x90, 0xa3, 0xe8, 0xfb, 0x79, 0xbe,
99 
  0x83, 0x95, 0x1c, 0xbc, 0x90, 0x78, 0x0a, 0x55, 0x79, 0x97, 0xfc, 0xf8, 0xef, 0xe1, 0x37, 0xaf, 0xe8, 0xb5, 0x56, 0x22, 0x5b, 0x53, 0xb5, 0xdd, 0x92,
100 
  0xb7, 0xa6, 0x76, 0x65, 0x63, 0x8a, 0x4f, 0x18, 0x6a, 0xf7, 0x73, 0xad, 0xbc, 0x4f, 0x07, 0xd6, 0x95, 0xcf, 0xb9, 0x3a, 0xde, 0x05, 0x75, 0xe0, 0x50,
101 
  0xbb, 0x83, 0x15, 0x85, 0xf5, 0x33, 0x0b, 0xae, 0x6c, 0xb1, 0x26, 0xe3, 0xb9, 0x9b, 0x1e, 0xee, 0xab, 0x2f, 0x78, 0x41, 0xc3, 0x8e, 0x13, 0xf7, 0x5b,
102 
  0x81, 0x1f, 0x21, 0xd3, 0x4c, 0xba, 0xa3, 0xc5, 0x54, 0xe7, 0x9f, 0x37, 0xb9, 0xb8, 0x2c, 0x6c, 0x98, 0x74, 0xe5, 0xf7, 0x92, 0x0c, 0xa9, 0xeb, 0x32,
103 
  0x33, 0xea, 0x51, 0x78, 0xfe, 0x38, 0x17, 0x38, 0xf2, 0x91, 0x82, 0xd5, 0xce, 0x56, 0x5e, 0x49, 0x44, 0xb7, 0x31, 0x8a, 0x61, 0x70, 0x14, 0x37, 0x7d,
104 
  0x8b, 0x0b, 0x1f, 0xd5, 0x50, 0xed, 0xa8, 0x03, 0xb6, 0x17, 0x83, 0x49, 0xcf, 0xd9, 0x16, 0xae, 0x91, 0xcd, 0x78, 0x3f, 0x0e, 0x4b, 0xc3, 0xa0, 0x61,
105 
  0xd0, 0x30, 0x68, 0x18, 0x34, 0x0c, 0x1a, 0x06, 0x0d, 0x83, 0x86, 0x41, 0xc3, 0xa0, 0x61, 0xd0, 0x30, 0x68, 0x18, 0x34, 0x0c, 0x1a, 0x06, 0xff, 0xc1,
106 
  0x60, 0x1c, 0xf6, 0xab, 0x85, 0x71, 0xd8, 0xee, 0x25, 0xfe, 0x01, 0xa0, 0xec, 0x78, 0xfe, 0xae, 0x10, 0x00, 0x00
107 
};
108 
 
109 
static const size_t index2_html_gz_len = sizeof(index2_html_gz);
110 
 
111 
void setup() {
112 
  Serial.begin(115200);
113 
 
114 
#if ASYNCWEBSERVER_WIFI_SUPPORTED
115 
  WiFi.mode(WIFI_AP);
116 
  WiFi.softAP("esp-captive");
117 
#endif
118 
 
119 
#ifdef ESP32
120 
  LittleFS.begin(true);
121 
#else
122 
  LittleFS.begin();
123 
#endif
124 
 
125 
  {
126 
    File f = LittleFS.open("/index.html", "w");
127 
    assert(f);
128 
    f.print(htmlContent);
129 
    f.close();
130 
  }
131 
 
132 
  {
133 
    File f = LittleFS.open("/index2.html.gz", "w");
134 
    assert(f);
135 
    f.write(index2_html_gz, index2_html_gz_len);
136 
    f.close();
137 
  }
138 
 
139 
  LittleFS.mkdir("/files");
140 
 
141 
  {
142 
    File f = LittleFS.open("/files/a.txt", "w");
143 
    assert(f);
144 
    f.print("Hello from a.txt");
145 
    f.close();
146 
  }
147 
 
148 
  {
149 
    File f = LittleFS.open("/files/b.txt", "w");
150 
    assert(f);
151 
    f.print("Hello from b.txt");
152 
    f.close();
153 
  }
154 
 
155 
  // curl -v http://192.168.4.1/
156 
  server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
157 
    request->redirect("/index.html");
158 
  });
159 
 
160 
  // curl -v http://192.168.4.1/index.html
161 
  server.serveStatic("/index.html", LittleFS, "/index.html");
162 
 
163 
  // curl -v http://192.168.4.1/index2.html | gunzip -c
164 
  server.serveStatic("/index2.html", LittleFS, "/index2.html");
165 
 
166 
  // Example to serve a directory content
167 
  // curl -v http://192.168.4.1/base/ => serves a.txt
168 
  // curl -v http://192.168.4.1/base/a.txt => serves a.txt
169 
  // curl -v http://192.168.4.1/base/b.txt => serves b.txt
170 
  server.serveStatic("/base", LittleFS, "/files").setDefaultFile("a.txt");
171 
 
172 
  server.begin();
173 
}
174 
 
175 
// not needed
176 
void loop() {
177 
  delay(100);
178 
}