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Code Issues Releases Wiki Activity

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

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Co-authored-by: Daniel Dunn <dannydunn@eternityforest.com>
This commit is contained in:
Daniel Dunn
2023-08-31 20:02:26 -06:00
committed by GitHub
parent f14419bab5
commit 19d53c6643
3 changed files with 15 additions and 2 deletions
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10
esphome/components/web_server/__init__.py
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@@ -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]))