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try out etags instead of immutable cache

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proddy
2024-02-11 21:54:31 +01:00
parent 23cfdd9b34
commit 7c97aaf735
3 changed files with 53 additions and 7 deletions
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25
lib/framework/ESP8266React.cpp
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@@ -19,15 +19,32 @@ ESP8266React::ESP8266React(AsyncWebServer * server, FS * fs)
, _restartService(server, &_securitySettingsService)
, _factoryResetService(server, fs, &_securitySettingsService)
, _systemStatus(server, &_securitySettingsService) {
// Serve static resources
WWWData::registerRoutes([server, this](const String & uri, const String & contentType, const uint8_t * content, size_t len) {
ArRequestHandlerFunction requestHandler = [contentType, content, len](AsyncWebServerRequest * request) {
//
// Serve static web resources
//
// Populate the last modification date based on build datetime
static char last_modified[50];
sprintf(last_modified, "%s %s CET", __DATE__, __TIME__);
WWWData::registerRoutes([server, this](const String & uri, const String & contentType, const uint8_t * content, size_t len, const String & hash) {
ArRequestHandlerFunction requestHandler = [contentType, content, len, hash](AsyncWebServerRequest * request) {
// Check if the client already has the same version and respond with a 304 (Not modified)
if (request->header("If-Modified-Since").indexOf(last_modified) > 0) {
return request->send(304);
} else if (request->header("If-None-Match").equals(hash)) {
return request->send(304);
}
AsyncWebServerResponse * response = request->beginResponse_P(200, contentType, content, len);
response->addHeader("Content-Encoding", "gzip");
response->addHeader("Cache-Control", "public, immutable, max-age=31536000");
// response->addHeader("Cache-Control", "public, immutable, max-age=31536000");
response->addHeader("Last-Modified", last_modified);
response->addHeader("ETag", hash);
// response->addHeader("Content-Encoding", "br"); // only works over HTTPS
request->send(response);
};
server->on(uri.c_str(), HTTP_GET, requestHandler);
// Serving non matching get requests with "/index.html"
// OPTIONS get a straight up 200 response