added diy files more
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Before Width: | Height: | Size: 6.0 KiB |
166
works/Dennis de Bel & Anton Jehle/esp-files/DNSServer.cpp
Normal file
166
works/Dennis de Bel & Anton Jehle/esp-files/DNSServer.cpp
Normal file
@ -0,0 +1,166 @@
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#include "./DNSServer.h"
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#include <lwip/def.h>
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#include <Arduino.h>
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#define DEBUG
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#define DEBUG_OUTPUT Serial
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DNSServer::DNSServer()
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{
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_ttl = htonl(60);
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_errorReplyCode = DNSReplyCode::NonExistentDomain;
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}
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bool DNSServer::start(const uint16_t &port, const String &domainName,
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const IPAddress &resolvedIP)
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{
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_port = port;
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_domainName = domainName;
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_resolvedIP[0] = resolvedIP[0];
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_resolvedIP[1] = resolvedIP[1];
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_resolvedIP[2] = resolvedIP[2];
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_resolvedIP[3] = resolvedIP[3];
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downcaseAndRemoveWwwPrefix(_domainName);
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return _udp.begin(_port) == 1;
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}
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void DNSServer::setErrorReplyCode(const DNSReplyCode &replyCode)
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{
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_errorReplyCode = replyCode;
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}
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void DNSServer::setTTL(const uint32_t &ttl)
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{
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_ttl = htonl(ttl);
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}
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void DNSServer::stop()
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{
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_udp.stop();
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}
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void DNSServer::downcaseAndRemoveWwwPrefix(String &domainName)
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{
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domainName.toLowerCase();
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domainName.replace("www.", "");
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domainName.replace("https://", "");
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}
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void DNSServer::processNextRequest()
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{
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_currentPacketSize = _udp.parsePacket();
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if (_currentPacketSize)
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{
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_buffer = (unsigned char*)malloc(_currentPacketSize * sizeof(char));
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_udp.read(_buffer, _currentPacketSize);
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_dnsHeader = (DNSHeader*) _buffer;
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if (_dnsHeader->QR == DNS_QR_QUERY &&
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_dnsHeader->OPCode == DNS_OPCODE_QUERY &&
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requestIncludesOnlyOneQuestion() &&
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(_domainName == "*" || getDomainNameWithoutWwwPrefix() == _domainName)
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)
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{
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replyWithIP();
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}
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else if (_dnsHeader->QR == DNS_QR_QUERY)
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{
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replyWithCustomCode();
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}
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free(_buffer);
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}
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}
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bool DNSServer::requestIncludesOnlyOneQuestion()
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{
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return ntohs(_dnsHeader->QDCount) == 1 &&
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_dnsHeader->ANCount == 0 &&
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_dnsHeader->NSCount == 0 &&
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_dnsHeader->ARCount == 0;
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}
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String DNSServer::getDomainNameWithoutWwwPrefix()
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{
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String parsedDomainName = "";
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unsigned char *start = _buffer + 12;
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if (*start == 0)
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{
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return parsedDomainName;
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}
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int pos = 0;
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while(true)
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{
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unsigned char labelLength = *(start + pos);
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for(int i = 0; i < labelLength; i++)
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{
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pos++;
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parsedDomainName += (char)*(start + pos);
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}
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pos++;
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if (*(start + pos) == 0)
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{
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downcaseAndRemoveWwwPrefix(parsedDomainName);
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return parsedDomainName;
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}
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else
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{
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parsedDomainName += ".";
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}
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}
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}
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void DNSServer::replyWithIP()
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{
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_dnsHeader->QR = DNS_QR_RESPONSE;
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_dnsHeader->ANCount = _dnsHeader->QDCount;
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_dnsHeader->QDCount = _dnsHeader->QDCount;
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//_dnsHeader->RA = 1;
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_udp.beginPacket(_udp.remoteIP(), _udp.remotePort());
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_udp.write(_buffer, _currentPacketSize);
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_udp.write((uint8_t)192); // answer name is a pointer
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_udp.write((uint8_t)12); // pointer to offset at 0x00c
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_udp.write((uint8_t)0); // 0x0001 answer is type A query (host address)
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_udp.write((uint8_t)1);
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_udp.write((uint8_t)0); //0x0001 answer is class IN (internet address)
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_udp.write((uint8_t)1);
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_udp.write((unsigned char*)&_ttl, 4);
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// Length of RData is 4 bytes (because, in this case, RData is IPv4)
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_udp.write((uint8_t)0);
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_udp.write((uint8_t)4);
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_udp.write(_resolvedIP, sizeof(_resolvedIP));
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_udp.endPacket();
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||||
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||||
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||||
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||||
#ifdef DEBUG
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||||
DEBUG_OUTPUT.print("DNS responds: ");
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||||
DEBUG_OUTPUT.print(_resolvedIP[0]);
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||||
DEBUG_OUTPUT.print(".");
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||||
DEBUG_OUTPUT.print(_resolvedIP[1]);
|
||||
DEBUG_OUTPUT.print(".");
|
||||
DEBUG_OUTPUT.print(_resolvedIP[2]);
|
||||
DEBUG_OUTPUT.print(".");
|
||||
DEBUG_OUTPUT.print(_resolvedIP[3]);
|
||||
DEBUG_OUTPUT.print(" for ");
|
||||
DEBUG_OUTPUT.println(getDomainNameWithoutWwwPrefix());
|
||||
#endif
|
||||
}
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||||
|
||||
void DNSServer::replyWithCustomCode()
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||||
{
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||||
_dnsHeader->QR = DNS_QR_RESPONSE;
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||||
_dnsHeader->RCode = (unsigned char)_errorReplyCode;
|
||||
_dnsHeader->QDCount = 0;
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||||
|
||||
_udp.beginPacket(_udp.remoteIP(), _udp.remotePort());
|
||||
_udp.write(_buffer, sizeof(DNSHeader));
|
||||
_udp.endPacket();
|
||||
}
|
||||
72
works/Dennis de Bel & Anton Jehle/esp-files/DNSServer.h
Executable file
72
works/Dennis de Bel & Anton Jehle/esp-files/DNSServer.h
Executable file
@ -0,0 +1,72 @@
|
||||
#ifndef DNSServer_h
|
||||
#define DNSServer_h
|
||||
#include <WiFiUdp.h>
|
||||
|
||||
#define DNS_QR_QUERY 0
|
||||
#define DNS_QR_RESPONSE 1
|
||||
#define DNS_OPCODE_QUERY 0
|
||||
|
||||
enum class DNSReplyCode
|
||||
{
|
||||
NoError = 0,
|
||||
FormError = 1,
|
||||
ServerFailure = 2,
|
||||
NonExistentDomain = 3,
|
||||
NotImplemented = 4,
|
||||
Refused = 5,
|
||||
YXDomain = 6,
|
||||
YXRRSet = 7,
|
||||
NXRRSet = 8
|
||||
};
|
||||
|
||||
struct DNSHeader
|
||||
{
|
||||
uint16_t ID; // identification number
|
||||
unsigned char RD : 1; // recursion desired
|
||||
unsigned char TC : 1; // truncated message
|
||||
unsigned char AA : 1; // authoritive answer
|
||||
unsigned char OPCode : 4; // message_type
|
||||
unsigned char QR : 1; // query/response flag
|
||||
unsigned char RCode : 4; // response code
|
||||
unsigned char Z : 3; // its z! reserved
|
||||
unsigned char RA : 1; // recursion available
|
||||
uint16_t QDCount; // number of question entries
|
||||
uint16_t ANCount; // number of answer entries
|
||||
uint16_t NSCount; // number of authority entries
|
||||
uint16_t ARCount; // number of resource entries
|
||||
};
|
||||
|
||||
class DNSServer
|
||||
{
|
||||
public:
|
||||
DNSServer();
|
||||
void processNextRequest();
|
||||
void setErrorReplyCode(const DNSReplyCode &replyCode);
|
||||
void setTTL(const uint32_t &ttl);
|
||||
|
||||
// Returns true if successful, false if there are no sockets available
|
||||
bool start(const uint16_t &port,
|
||||
const String &domainName,
|
||||
const IPAddress &resolvedIP);
|
||||
// stops the DNS server
|
||||
void stop();
|
||||
|
||||
private:
|
||||
WiFiUDP _udp;
|
||||
uint16_t _port;
|
||||
String _domainName;
|
||||
unsigned char _resolvedIP[4];
|
||||
int _currentPacketSize;
|
||||
unsigned char* _buffer;
|
||||
DNSHeader* _dnsHeader;
|
||||
uint32_t _ttl;
|
||||
DNSReplyCode _errorReplyCode;
|
||||
|
||||
void downcaseAndRemoveWwwPrefix(String &domainName);
|
||||
String getDomainNameWithoutWwwPrefix();
|
||||
bool requestIncludesOnlyOneQuestion();
|
||||
void replyWithIP();
|
||||
void replyWithCustomCode();
|
||||
};
|
||||
#endif
|
||||
|
||||
BIN
works/Dennis de Bel & Anton Jehle/esp-files/data/.DS_Store
vendored
Normal file
BIN
works/Dennis de Bel & Anton Jehle/esp-files/data/.DS_Store
vendored
Normal file
Binary file not shown.
Binary file not shown.
98
works/Dennis de Bel & Anton Jehle/esp-files/esp-files.ino
Normal file
98
works/Dennis de Bel & Anton Jehle/esp-files/esp-files.ino
Normal file
@ -0,0 +1,98 @@
|
||||
// Captive portal with (arduino) OTA + SPIFFS
|
||||
|
||||
#include <Arduino.h>
|
||||
#include <ESP8266WiFi.h>
|
||||
#include <ESP8266mDNS.h>
|
||||
#include <WiFiUdp.h>
|
||||
#include <ArduinoOTA.h> // Over-the-Air updates
|
||||
#include <ESP8266WebServer.h>
|
||||
#include "./DNSServer.h" // Dns server
|
||||
#include <FS.h> // SPIFFS
|
||||
|
||||
DNSServer dnsServer;
|
||||
const byte DNS_PORT = 53;
|
||||
|
||||
ESP8266WebServer server(80);
|
||||
|
||||
#ifndef STASSID
|
||||
#define STASSID "Paracity Gallery v041"
|
||||
//#define STASPSK "mypassword"
|
||||
#endif
|
||||
|
||||
IPAddress apIP(192, 168, 4, 1);
|
||||
const char* ssid = STASSID;
|
||||
//const char* password = STAPSK;
|
||||
|
||||
void setup() {
|
||||
Serial.begin(115200);
|
||||
Serial.println("Booting");
|
||||
|
||||
WiFi.mode(WIFI_AP);
|
||||
WiFi.softAPConfig(apIP, apIP, IPAddress(255, 255, 255, 0));
|
||||
WiFi.softAP(ssid);
|
||||
dnsServer.start(DNS_PORT, "*", apIP); // redirect dns request to AP ip
|
||||
|
||||
MDNS.begin("opencoil", WiFi.softAPIP());
|
||||
Serial.println("Ready");
|
||||
Serial.print("IP address: ");
|
||||
Serial.println(WiFi.softAPIP());
|
||||
|
||||
//Over-the-Air updates
|
||||
ArduinoOTA.setHostname("opencoil");
|
||||
//ArduinoOTA.setPassword("change-me"); //disabled to allow data uploads
|
||||
ArduinoOTA.begin();
|
||||
SPIFFS.begin();
|
||||
|
||||
//redirect all traffic to index.html
|
||||
server.onNotFound([]() {
|
||||
if(!handleFileRead(server.uri())){
|
||||
const char *metaRefreshStr = "<head><meta http-equiv=\"refresh\" content=\"0; url=http://192.168.4.1/index.html\" /></head><body><p>redirecting...</p></body>";
|
||||
server.send(200, "text/html", metaRefreshStr);
|
||||
}
|
||||
});
|
||||
|
||||
server.begin();
|
||||
|
||||
}
|
||||
|
||||
void loop() {
|
||||
dnsServer.processNextRequest();
|
||||
ArduinoOTA.handle();
|
||||
server.handleClient();
|
||||
delay(50);
|
||||
}
|
||||
|
||||
|
||||
String getContentType(String filename){
|
||||
if(server.hasArg("download")) return "application/octet-stream";
|
||||
else if(filename.endsWith(".htm")) return "text/html";
|
||||
else if(filename.endsWith(".html")) return "text/html";
|
||||
else if(filename.endsWith(".css")) return "text/css";
|
||||
else if(filename.endsWith(".js")) return "application/javascript";
|
||||
else if(filename.endsWith(".png")) return "image/png";
|
||||
else if(filename.endsWith(".gif")) return "image/gif";
|
||||
else if(filename.endsWith(".jpg")) return "image/jpeg";
|
||||
else if(filename.endsWith(".ico")) return "image/x-icon";
|
||||
else if(filename.endsWith(".xml")) return "text/xml";
|
||||
else if(filename.endsWith(".mp4")) return "video/mp4";
|
||||
else if(filename.endsWith(".pdf")) return "application/x-pdf";
|
||||
else if(filename.endsWith(".zip")) return "application/x-zip";
|
||||
else if(filename.endsWith(".gz")) return "application/x-gzip";
|
||||
return "text/plain";
|
||||
}
|
||||
|
||||
//Given a file path, look for it in the SPIFFS file storage. Returns true if found, returns false if not found.
|
||||
bool handleFileRead(String path){
|
||||
if(path.endsWith("/")) path += "index.html";
|
||||
String contentType = getContentType(path);
|
||||
String pathWithGz = path + ".gz";
|
||||
if(SPIFFS.exists(pathWithGz) || SPIFFS.exists(path)){
|
||||
if(SPIFFS.exists(pathWithGz))
|
||||
path += ".gz";
|
||||
File file = SPIFFS.open(path, "r");
|
||||
size_t sent = server.streamFile(file, contentType);
|
||||
file.close();
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user