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Use gzip compression for the web server component's static resources (#5291)

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Co-authored-by: Daniel Dunn <dannydunn@eternityforest.com>
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Daniel Dunn 2023-08-31 20:02:26 -06:00 committed by GitHub
parent f14419bab5
commit 19d53c6643
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 15 additions and 2 deletions
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10
esphome/components/web_server/__init__.py
View File

@ -1,3 +1,4 @@
import gzip
import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.components import web_server_base
@ -109,9 +110,13 @@ def build_index_html(config) -> str:
return html
def add_resource_as_progmem(resource_name: str, content: str) -> None:
def add_resource_as_progmem(
resource_name: str, content: str, compress: bool = True
) -> None:
"""Add a resource to progmem."""
content_encoded = content.encode("utf-8")
if compress:
content_encoded = gzip.compress(content_encoded)
content_encoded_size = len(content_encoded)
bytes_as_int = ", ".join(str(x) for x in content_encoded)
uint8_t = f"const uint8_t ESPHOME_WEBSERVER_{resource_name}[{content_encoded_size}] PROGMEM = {{{bytes_as_int}}}"
@ -137,7 +142,8 @@ async def to_code(config):
cg.add_define("USE_WEBSERVER_PORT", config[CONF_PORT])
cg.add_define("USE_WEBSERVER_VERSION", version)
if version == 2:
add_resource_as_progmem("INDEX_HTML", build_index_html(config))
# Don't compress the index HTML as the data sizes are almost the same.
add_resource_as_progmem("INDEX_HTML", build_index_html(config), compress=False)
else:
cg.add(var.set_css_url(config[CONF_CSS_URL]))
cg.add(var.set_js_url(config[CONF_JS_URL]))

3
esphome/components/web_server/web_server.cpp
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@ -328,6 +328,7 @@ void WebServer::handle_index_request(AsyncWebServerRequest *request) {
void WebServer::handle_index_request(AsyncWebServerRequest *request) {
AsyncWebServerResponse *response =
request->beginResponse_P(200, "text/html", ESPHOME_WEBSERVER_INDEX_HTML, ESPHOME_WEBSERVER_INDEX_HTML_SIZE);
// No gzip header here because the HTML file is so small
request->send(response);
}
#endif
@ -336,6 +337,7 @@ void WebServer::handle_index_request(AsyncWebServerRequest *request) {
void WebServer::handle_css_request(AsyncWebServerRequest *request) {
AsyncWebServerResponse *response =
request->beginResponse_P(200, "text/css", ESPHOME_WEBSERVER_CSS_INCLUDE, ESPHOME_WEBSERVER_CSS_INCLUDE_SIZE);
response->addHeader("Content-Encoding", "gzip");
request->send(response);
}
#endif
@ -344,6 +346,7 @@ void WebServer::handle_css_request(AsyncWebServerRequest *request) {
void WebServer::handle_js_request(AsyncWebServerRequest *request) {
AsyncWebServerResponse *response =
request->beginResponse_P(200, "text/javascript", ESPHOME_WEBSERVER_JS_INCLUDE, ESPHOME_WEBSERVER_JS_INCLUDE_SIZE);
response->addHeader("Content-Encoding", "gzip");
request->send(response);
}
#endif

4
tests/test3.1.yaml
View File

@ -21,6 +21,10 @@ wifi:
ssid: "MySSID"
password: "password1"
web_server:
port: 80
version: 2
i2c:
sda: 4
scl: 5