# SPDX-License-Identifier: AGPL-3.0-or-later
"""Implementations of the favicon *resolvers* that are available in the favicon
proxy by default. A *resolver* is a function that obtains the favicon from an
external source. The *resolver* function receives two arguments (``domain,
timeout``) and returns a tuple ``(data, mime)``.
"""
from __future__ import annotations
__all__ = ["DEFAULT_RESOLVER_MAP", "allesedv", "duckduckgo", "google", "yandex"]
from typing import Callable
from searx import network
from searx import logger
DEFAULT_RESOLVER_MAP: dict[str, Callable]
logger = logger.getChild('favicons.resolvers')
def _req_args(**kwargs):
# add the request arguments from the searx.network
d = {"raise_for_httperror": False}
d.update(kwargs)
return d
[docs]
def allesedv(domain: str, timeout: int) -> tuple[None | bytes, None | str]:
"""Favicon Resolver from allesedv.com / https://favicon.allesedv.com/"""
data, mime = (None, None)
url = f"https://f1.allesedv.com/32/{domain}"
logger.debug("fetch favicon from: %s", url)
# will just return a 200 regardless of the favicon existing or not
# sometimes will be correct size, sometimes not
response = network.get(url, **_req_args(timeout=timeout))
if response and response.status_code == 200:
mime = response.headers['Content-Type']
if mime != 'image/gif':
data = response.content
return data, mime
[docs]
def duckduckgo(domain: str, timeout: int) -> tuple[None | bytes, None | str]:
"""Favicon Resolver from duckduckgo.com / https://blog.jim-nielsen.com/2021/displaying-favicons-for-any-domain/"""
data, mime = (None, None)
url = f"https://icons.duckduckgo.com/ip2/{domain}.ico"
logger.debug("fetch favicon from: %s", url)
# will return a 404 if the favicon does not exist and a 200 if it does,
response = network.get(url, **_req_args(timeout=timeout))
if response and response.status_code == 200:
# api will respond with a 32x32 png image
mime = response.headers['Content-Type']
data = response.content
return data, mime
[docs]
def google(domain: str, timeout: int) -> tuple[None | bytes, None | str]:
"""Favicon Resolver from google.com"""
data, mime = (None, None)
# URL https://www.google.com/s2/favicons?sz=32&domain={domain}" will be
# redirected (HTTP 301 Moved Permanently) to t1.gstatic.com/faviconV2:
url = (
f"https://t1.gstatic.com/faviconV2?client=SOCIAL&type=FAVICON&fallback_opts=TYPE,SIZE,URL"
f"&url=https://{domain}&size=32"
)
logger.debug("fetch favicon from: %s", url)
# will return a 404 if the favicon does not exist and a 200 if it does,
response = network.get(url, **_req_args(timeout=timeout))
if response and response.status_code == 200:
# api will respond with a 32x32 png image
mime = response.headers['Content-Type']
data = response.content
return data, mime
[docs]
def yandex(domain: str, timeout: int) -> tuple[None | bytes, None | str]:
"""Favicon Resolver from yandex.com"""
data, mime = (None, None)
url = f"https://favicon.yandex.net/favicon/{domain}"
logger.debug("fetch favicon from: %s", url)
# api will respond with a 16x16 png image, if it doesn't exist, it will be a
# 1x1 png image (70 bytes)
response = network.get(url, **_req_args(timeout=timeout))
if response and response.status_code == 200 and len(response.content) > 70:
mime = response.headers['Content-Type']
data = response.content
return data, mime
DEFAULT_RESOLVER_MAP = {
"allesedv": allesedv,
"duckduckgo": duckduckgo,
"google": google,
"yandex": yandex,
}
