Aktualizace na verzi 2.10.1

2024-05-30 08:41:06 +02:00
parent e2bc8b4dc8
commit fef6d6acb4
12 changed files with 290 additions and 27 deletions
--- a/examples/StreamFiles/StreamConcat.h
+++ b/examples/StreamFiles/StreamConcat.h
@@ -0,0 +1,33 @@
+#pragma once
+
+#include <Stream.h>
+
+class StreamConcat : public Stream {
+  public:
+    StreamConcat(Stream* s1, Stream* s2) : _s1(s1), _s2(s2) {}
+
+    size_t write(const uint8_t* p, size_t n) override { return 0; }
+    size_t write(uint8_t c) override { return 0; }
+    void flush() override {}
+
+    int available() override { return _s1->available() + _s2->available(); }
+
+    int read() override {
+      int c = _s1->read();
+      return c != -1 ? c : _s2->read();
+    }
+
+    size_t readBytes(char* buffer, size_t length) override {
+      size_t count = _s1->readBytes(buffer, length);
+      return count > 0 ? count : _s2->readBytes(buffer, length);
+    }
+
+    int peek() override {
+      int c = _s1->peek();
+      return c != -1 ? c : _s2->peek();
+    }
+
+  private:
+    Stream* _s1;
+    Stream* _s2;
+};
--- a/examples/StreamFiles/StreamFiles.ino
+++ b/examples/StreamFiles/StreamFiles.ino
@@ -0,0 +1,73 @@
+#include <Arduino.h>
+#include <DNSServer.h>
+#ifdef ESP32
+#include <AsyncTCP.h>
+#include <WiFi.h>
+#elif defined(ESP8266)
+#include <ESP8266WiFi.h>
+#include <ESPAsyncTCP.h>
+#endif
+#include "StreamConcat.h"
+#include "StreamString.h"
+#include <ESPAsyncWebServer.h>
+#include <LittleFS.h>
+
+DNSServer dnsServer;
+AsyncWebServer server(80);
+
+void setup() {
+  Serial.begin(115200);
+
+  LittleFS.begin();
+
+  WiFi.mode(WIFI_AP);
+  WiFi.softAP("esp-captive");
+  dnsServer.start(53, "*", WiFi.softAPIP());
+
+  File file1 = LittleFS.open("/header.html", "w");
+  file1.print("<html><head><title>ESP Captive Portal</title><meta http-equiv=\"refresh\" content=\"1\"></head><body>");
+  file1.close();
+
+  File file2 = LittleFS.open("/body.html", "w");
+  file2.print("<h1>Welcome to ESP Captive Portal</h1>");
+  file2.close();
+
+  File file3 = LittleFS.open("/footer.html", "w");
+  file3.print("</body></html>");
+  file3.close();
+
+  server.on("/", HTTP_GET, [](AsyncWebServerRequest* request) {
+    File header = LittleFS.open("/header.html", "r");
+    File body = LittleFS.open("/body.html", "r");
+    StreamConcat stream1(&header, &body);
+
+    StreamString content;
+    content.printf("FreeHeap: %" PRIu32, ESP.getFreeHeap());
+    StreamConcat stream2 = StreamConcat(&stream1, &content);
+
+    File footer = LittleFS.open("/footer.html", "r");
+    StreamConcat stream3 = StreamConcat(&stream2, &footer);
+
+    request->send(stream3, "text/html", stream3.available());
+    header.close();
+    body.close();
+    footer.close();
+  });
+
+  server.onNotFound([](AsyncWebServerRequest* request) {
+    request->send(404, "text/plain", "Not found");
+  });
+
+  server.begin();
+}
+
+uint32_t last = 0;
+
+void loop() {
+  // dnsServer.processNextRequest();
+
+  if (millis() - last > 2000) {
+    Serial.printf("FreeHeap: %" PRIu32, ESP.getFreeHeap());
+    last = millis();
+  }
+}
--- a/examples/StreamFiles/StreamString.h
+++ b/examples/StreamFiles/StreamString.h
@@ -0,0 +1,36 @@
+#pragma once
+
+#include <Stream.h>
+
+class StreamString : public Stream {
+  public:
+    size_t write(const uint8_t* p, size_t n) override { return _buffer.concat(reinterpret_cast<const char*>(p), n) ? n : 0; }
+    size_t write(uint8_t c) override { return _buffer.concat(static_cast<char>(c)) ? 1 : 0; }
+    void flush() override {}
+
+    int available() override { return static_cast<int>(_buffer.length()); }
+
+    int read() override {
+      if (_buffer.length() == 0)
+        return -1;
+      char c = _buffer[0];
+      _buffer.remove(0, 1);
+      return c;
+    }
+
+    size_t readBytes(char* buffer, size_t length) override {
+      if (length > _buffer.length())
+        length = _buffer.length();
+      // Don't use _str.ToCharArray() because it inserts a terminator
+      memcpy(buffer, _buffer.c_str(), length);
+      _buffer.remove(0, static_cast<unsigned int>(length));
+      return length;
+    }
+
+    int peek() override { return _buffer.length() > 0 ? _buffer[0] : -1; }
+
+    const String& buffer() const { return _buffer; }
+
+  private:
+    String _buffer;
+};