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[mod] /image_proxy: use HTTP/1 instead of HTTP/2
httpx: HTTP/2 is slow when a lot data is downloaded. https://github.com/dalf/pyhttp-benchmark also, the usage of HTTP/1 decreases the load average
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@ -289,6 +289,14 @@ def initialize(settings_engines=None, settings_outgoing=None):
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if isinstance(network, str):
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NETWORKS[engine_name] = NETWORKS[network]
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# the /image_proxy endpoint has a dedicated network.
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# same parameters than the default network, but HTTP/2 is disabled.
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# It decreases the CPU load average, and the total time is more or less the same
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if 'image_proxy' not in NETWORKS:
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image_proxy_params = default_params.copy()
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image_proxy_params['enable_http2'] = False
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NETWORKS['image_proxy'] = new_network(image_proxy_params)
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@atexit.register
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def done():
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@ -108,7 +108,7 @@ from searx.autocomplete import search_autocomplete, backends as autocomplete_bac
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from searx.languages import language_codes as languages
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from searx.locales import LOCALE_NAMES, UI_LOCALE_CODES, RTL_LOCALES
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from searx.search import SearchWithPlugins, initialize as search_initialize
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from searx.network import stream as http_stream
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from searx.network import stream as http_stream, set_context_network_name
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from searx.search.checker import get_result as checker_get_result
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from searx.settings_loader import get_default_settings_path
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@ -1086,13 +1086,11 @@ def image_proxy():
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'Sec-GPC': '1',
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'DNT': '1',
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}
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set_context_network_name('image_proxy')
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stream = http_stream(
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method = 'GET',
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url = url,
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headers = request_headers,
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timeout = settings['outgoing']['request_timeout'],
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allow_redirects = True,
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max_redirects = 20
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headers = request_headers
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)
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resp = next(stream)
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content_length = resp.headers.get('Content-Length')
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