io (UdZddlmZddlZddlZddlZddlZddlZddl m Z ddl Z ddl m Z ddlmZmZddlmZddlmZd d lmZd d lmZiZdad ed <ddZdZGdd e j<ZdZ de!de!de"de#zde!zffdZ$de!de!fdZ%y)z#Implementations for a favicon proxy)CallableN) HTTPError) get_setting)new_hmac is_hmac_of)SearxEngineResponseException) sxng_request)DEFAULT_RESOLVER_MAP)cacheFaviconProxyConfigCFGc|ay)N)r)cfgs %/root/searxng/searx/favicons/proxy.pyinitrs Ccvi}tdd}|r(tj|}|r|d|ji}|S)Nzsearch.favicon_resolverzsearx.favicons.resolvers.)rr get__name__)dnamefuncs r_initial_resolver_mapr"sE A5tz6FaviconProxyConfig.favicon_data_url..`s!k11\!_$56ks)keyNrutf-8)encodingdata:z;utf8,r3)joinsortedlistkeysstrDEFAULT_FAVICON_URLrrr8openreadurllibparsequote)r)r7 cache_keydata_urlfavmimetypefs ` rfavicon_data_urlz#FaviconProxyConfig.favicon_data_url]sIIktLL]L]L_G`fi@jkk &**95  O 3l3 X XXcGX , vvxH <<%%h/8*F8*5)1I&   s CC)r __module__ __qualname____doc__rint__annotations__rrrHrmsgspecfieldrr dictrr/r0r1r8rTr3rrr r ,s-#GS# ""56J6((BCcCL$17==AV#WL$sCx.WC  D $$458__L#_,s, rctjjd}|rd|vryttj |j tjjddsytjjd}|r |tjjvryt||\}}|;|9tj||}dtj|jd <|Stjjd }tj!| \}}tj"|j$|j&|S) a'REST API of SearXNG's favicon proxy service :: /favicon_proxy?authority=<...>&h=<...> ``authority``: Domain name :rfc:`3986` / see :py:obj:`favicon_url` ``h``: HMAC :rfc:`2104`, build up from the :ref:`server.secret_key ` setting. authority/)ihr`favicon_resolver)rRzmax-age=z Cache-Controlthemerc)r argsrrrrencode preferences get_valuer rGsearch_faviconflaskResponserheadersr8send_from_directoryparentr)r^resolverdatamimeresprcrQrRs r favicon_proxyrsps&!!%%k2I y(  c2&  ''112DEH xs'7'7'<'<'>>)4JD$ D,~~dT2*23;;-(@ _%   $ $ . .w 7EKKeK,MC  $ $SZZH MMrror^r!c6d\}}tj|}|||fStj||}||S ||tj\}}||d\}}tjj||||||fS#t t f$rY7wxYw)a-Sends the request to the favicon resolver and returns a tuple for the favicon. The tuple consists of ``(data, mime)``, if the resolver has not determined a favicon, both values are ``None``. ``data``: Binary data of the favicon. ``mime``: Mime type of the favicon. NN)timeout)rr/r CACHErrrset)ror^rprqr data_mimes rririsJD$   H %D |Tz Hi0I )S-A-AB d <4<%JD$  KKOOHit4 : 3 4   s$BBBcJtjjd}|r |tjj vryt j||}|dk(r5tjjd}tj|S|*|\}}d|dttj|dSttj|j}tj d }t"j$j'||d }|d |S) aFunction to generate the image URL used for favicons in SearXNG's result lists. The ``authority`` argument (aka netloc / :rfc:`3986`) is usually a (sub-) domain name. This function is used in the HTML (jinja) templates. .. code:: html
The returned URL is a route to :py:obj:`favicon_proxy` REST API. If the favicon is already in the cache, the returned URL is a `data URL`_ (something like ``data:image/png;base64,...``). By generating a data url from the :py:obj:`.cache.FaviconCache`, additional HTTP roundtripps via the :py:obj:`favicon_proxy` are saved. However, it must also be borne in mind that data urls are not cached in the client (web browser). .. _data URL: https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URLs rbr`rurcrdrCz;base64,rArs)r^ra?)r rgrhrr rGr rwrTrHbase64 b64encoderrrfrjurl_forrLrM urlencode) r^roryrcrprqra proxy_urlquerys r favicon_urlrs.''112DEH xs'7'7'<'<'>> Hi0IL ((227;##%#00 dtfHS)9)9$)?%I$JKK!1!1!34A o.I LL " "#C DE[% !!r)rr )&rWtypingrr%r|r4 urllib.parserLrjhttpxrrZsearxrsearx.webutilsrrsearx.exceptionsrsearx.extended_typesr resolversr r`r rIrrYrrStructr rsrHtuplebytesrirr3rrrs)  /9-+    AAH,N^!S!S!U4%<PS;S5T!H*"3*"3*"r