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Merge branch 'pr1642' into dev

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This commit is contained in:
Thomas Basler 2024-01-30 20:47:45 +01:00
commit 48a722f826
2 changed files with 60 additions and 55 deletions
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3
include/WebApi_webapp.h
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@ -7,4 +7,7 @@
class WebApiWebappClass {
public:
void init(AsyncWebServer& server, Scheduler& scheduler);
private:
void responseBinaryDataWithETagCache(AsyncWebServerRequest* request, const String &contentType, const String &contentEncoding, const uint8_t *content, size_t len);
};

112
src/WebApi_webapp.cpp
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@ -3,6 +3,7 @@
* Copyright (C) 2022-2024 Thomas Basler and others
*/
#include "WebApi_webapp.h"
#include <MD5Builder.h>
extern const uint8_t file_index_html_start[] asm("_binary_webapp_dist_index_html_gz_start");
extern const uint8_t file_favicon_ico_start[] asm("_binary_webapp_dist_favicon_ico_start");
@ -18,77 +19,78 @@ extern const uint8_t file_zones_json_end[] asm("_binary_webapp_dist_zones_json_g
extern const uint8_t file_app_js_end[] asm("_binary_webapp_dist_js_app_js_gz_end");
extern const uint8_t file_site_webmanifest_end[] asm("_binary_webapp_dist_site_webmanifest_end");
#ifdef AUTO_GIT_HASH
#define ETAG_HTTP_HEADER_VAL "\"" AUTO_GIT_HASH "\"" // ETag value must be between quotes
#endif
void WebApiWebappClass::responseBinaryDataWithETagCache(AsyncWebServerRequest *request, const String &contentType, const String &contentEncoding, const uint8_t *content, size_t len)
{
auto md5 = MD5Builder();
md5.begin();
md5.add(const_cast<uint8_t *>(content), len);
md5.calculate();
String expectedEtag;
expectedEtag = "\"";
expectedEtag += md5.toString();
expectedEtag += "\"";
bool eTagMatch = false;
if (request->hasHeader("If-None-Match")) {
const AsyncWebHeader* h = request->getHeader("If-None-Match");
eTagMatch = h->value().equals(expectedEtag);
}
// begin response 200 or 304
AsyncWebServerResponse* response;
if (eTagMatch) {
response = request->beginResponse(304);
} else {
response = request->beginResponse_P(200, contentType, content, len);
if (contentEncoding.length() > 0) {
response->addHeader("Content-Encoding", contentEncoding);
}
}
// HTTP requires cache headers in 200 and 304 to be identical
response->addHeader("Cache-Control", "public, must-revalidate");
response->addHeader("ETag", expectedEtag);
request->send(response);
}
void WebApiWebappClass::init(AsyncWebServer& server, Scheduler& scheduler)
{
server.on("/", HTTP_GET, [](AsyncWebServerRequest* request) {
AsyncWebServerResponse* response = request->beginResponse_P(200, "text/html", file_index_html_start, file_index_html_end - file_index_html_start);
response->addHeader("Content-Encoding", "gzip");
request->send(response);
/*
We don't validate the request header "Accept-Encoding" if gzip compression is supported!
We just have the gzipped data available - so we ship them!
*/
server.on("/", HTTP_GET, [&](AsyncWebServerRequest* request) {
responseBinaryDataWithETagCache(request, "text/html", "gzip", file_index_html_start, file_index_html_end - file_index_html_start);
});
server.onNotFound([](AsyncWebServerRequest* request) {
AsyncWebServerResponse* response = request->beginResponse_P(200, "text/html", file_index_html_start, file_index_html_end - file_index_html_start);
response->addHeader("Content-Encoding", "gzip");
request->send(response);
server.onNotFound([&](AsyncWebServerRequest* request) {
responseBinaryDataWithETagCache(request, "text/html", "gzip", file_index_html_start, file_index_html_end - file_index_html_start);
});
server.on("/index.html", HTTP_GET, [](AsyncWebServerRequest* request) {
AsyncWebServerResponse* response = request->beginResponse_P(200, "text/html", file_index_html_start, file_index_html_end - file_index_html_start);
response->addHeader("Content-Encoding", "gzip");
request->send(response);
server.on("/index.html", HTTP_GET, [&](AsyncWebServerRequest* request) {
responseBinaryDataWithETagCache(request, "text/html", "gzip", file_index_html_start, file_index_html_end - file_index_html_start);
});
server.on("/favicon.ico", HTTP_GET, [](AsyncWebServerRequest* request) {
AsyncWebServerResponse* response = request->beginResponse_P(200, "image/x-icon", file_favicon_ico_start, file_favicon_ico_end - file_favicon_ico_start);
request->send(response);
server.on("/favicon.ico", HTTP_GET, [&](AsyncWebServerRequest* request) {
responseBinaryDataWithETagCache(request, "image/x-icon", "", file_favicon_ico_start, file_favicon_ico_end - file_favicon_ico_start);
});
server.on("/favicon.png", HTTP_GET, [](AsyncWebServerRequest* request) {
AsyncWebServerResponse* response = request->beginResponse_P(200, "image/png", file_favicon_png_start, file_favicon_png_end - file_favicon_png_start);
request->send(response);
server.on("/favicon.png", HTTP_GET, [&](AsyncWebServerRequest* request) {
responseBinaryDataWithETagCache(request, "image/png", "", file_favicon_png_start, file_favicon_png_end - file_favicon_png_start);
});
server.on("/zones.json", HTTP_GET, [](AsyncWebServerRequest* request) {
AsyncWebServerResponse* response = request->beginResponse_P(200, "application/json", file_zones_json_start, file_zones_json_end - file_zones_json_start);
response->addHeader("Content-Encoding", "gzip");
request->send(response);
server.on("/zones.json", HTTP_GET, [&](AsyncWebServerRequest* request) {
responseBinaryDataWithETagCache(request, "application/json", "gzip", file_zones_json_start, file_zones_json_end - file_zones_json_start);
});
server.on("/site.webmanifest", HTTP_GET, [](AsyncWebServerRequest* request) {
AsyncWebServerResponse* response = request->beginResponse_P(200, "application/json", file_site_webmanifest_start, file_site_webmanifest_end - file_site_webmanifest_start);
request->send(response);
server.on("/site.webmanifest", HTTP_GET, [&](AsyncWebServerRequest* request) {
responseBinaryDataWithETagCache(request, "application/json", "", file_site_webmanifest_start, file_site_webmanifest_end - file_site_webmanifest_start);
});
server.on("/js/app.js", HTTP_GET, [](AsyncWebServerRequest* request) {
#ifdef ETAG_HTTP_HEADER_VAL
// check client If-None-Match header vs ETag/AUTO_GIT_HASH
bool eTagMatch = false;
if (request->hasHeader("If-None-Match")) {
const AsyncWebHeader* h = request->getHeader("If-None-Match");
if (strncmp(ETAG_HTTP_HEADER_VAL, h->value().c_str(), strlen(ETAG_HTTP_HEADER_VAL)) == 0) {
eTagMatch = true;
}
}
// begin response 200 or 304
AsyncWebServerResponse* response;
if (eTagMatch) {
response = request->beginResponse(304);
} else {
response = request->beginResponse_P(200, "text/javascript", file_app_js_start, file_app_js_end - file_app_js_start);
response->addHeader("Content-Encoding", "gzip");
}
// HTTP requires cache headers in 200 and 304 to be identical
response->addHeader("Cache-Control", "public, must-revalidate");
response->addHeader("ETag", ETAG_HTTP_HEADER_VAL);
#else
AsyncWebServerResponse* response = request->beginResponse_P(200, "text/javascript", file_app_js_start, file_app_js_end - file_app_js_start);
response->addHeader("Content-Encoding", "gzip");
#endif
request->send(response);
server.on("/js/app.js", HTTP_GET, [&](AsyncWebServerRequest* request) {
responseBinaryDataWithETagCache(request, "text/javascript", "gzip", file_app_js_start, file_app_js_end - file_app_js_start);
});
}