ó ú2ec@s¿dZddlmZddlmZddlmZddl Z ddl m Z ddl m Z dZdefd„ƒYZddd„Zdefd„ƒYZd„Zddd„ZdS(sÞ An application that proxies WSGI requests to a remote server. TODO: * Send ``Via`` header? It's not clear to me this is a Via in the style of a typical proxy. * Other headers or metadata? I put in X-Forwarded-For, but that's it. * Signed data of non-HTTP keys? This would be for things like REMOTE_USER. * Something to indicate what the original URL was? The original host, scheme, and base path. * Rewriting ``Location`` headers? mod_proxy does this. * Rewriting body? (Probably not on this one -- that can be done with a different middleware that wraps this middleware) * Example:: use = egg:Paste#proxy address = http://server3:8680/exist/rest/db/orgs/sch/config/ allowed_request_methods = GET iÿÿÿÿ(t http_client(tparse(tquoteN(thttpexceptions(tasliststransfer-encodingt connections keep-alivesproxy-authenticatesproxy-authorizationttettrailerstupgradetProxycBs eZddd„Zd„ZRS(cCs¥||_tj|ƒ|_|jdjƒ|_|jd|_|jd|_g|D]}|rX|jƒ^qX|_g|D]}|r€|jƒ^q€|_ dS(Niii( taddressturlparseturlsplittparsedtlowertschemethosttpathtallowed_request_methodstsuppress_http_headers(tselfR RRtx((s5/usr/local/lib/python2.7/dist-packages/paste/proxy.pyt__init__7s (cCs|jr8|djƒ|jkr8tjdƒ||ƒS|jdkrStj}n7|jdkrntj}ntd|j |jfƒ‚||j ƒ}i}xs|j ƒD]e\}}|j dƒr¬|djƒj dd ƒ}|d ks¬||jkrq¬n|||| } | r&| ddkr&| d} ntj|j| ƒ} n| } |jdƒrh| d|d7} n|j|d| ||ƒ|jƒ} t| jƒ}d| j| jf}|||ƒ| jdƒ} | dk ró| jt| ƒƒ}n | jƒ}|j ƒ|gS(NtREQUEST_METHODt DisallowedthttpthttpssUnknown scheme for %r: %rtHTTP_it_t-Rt REMOTE_ADDRsx-forwarded-fort CONTENT_TYPEs content-typetCONTENT_LENGTHs-1s wsgi.inputiÿÿÿÿscontent-lengthtt PATH_INFOit/it QUERY_STRINGt?s%s %s(!RRRtHTTPBadRequestRthttplibtHTTPConnectiontHTTPSConnectiont ValueErrorR Rtitemst startswithtreplaceRtgettreadtstrtlentintRRR turljointrequestt getresponset parse_headerstmsgtstatustreasont getheadertNonetclose(Rtenvirontstart_responset ConnClasstconntheaderstkeytvaluetbodytlengtht path_infot request_pathRtrest headers_outR8((s5/usr/local/lib/python2.7/dist-packages/paste/proxy.pyt__call__Dsh              (((t__name__t __module__RRJ(((s5/usr/local/lib/python2.7/dist-packages/paste/proxy.pyR 5s R!cCs.t|ƒ}t|ƒ}t|d|d|ƒS(s¤ Make a WSGI application that proxies to another address: ``address`` the full URL ending with a trailing ``/`` ``allowed_request_methods``: a space seperated list of request methods (e.g., ``GET POST``) ``suppress_http_headers`` a space seperated list of http headers (lower case, without the leading ``http_``) that should not be passed on to target host RR(RR (t global_confR RR((s5/usr/local/lib/python2.7/dist-packages/paste/proxy.pyt make_proxy†s   tTransparentProxycBs/eZdZddd„Zd„Zd„ZRS(s$ A proxy that sends the request just as it was given, including respecting HTTP_HOST, wsgi.url_scheme, etc. This is a way of translating WSGI requests directly to real HTTP requests. All information goes in the environment; modify it to modify the way the request is made. If you specify ``force_host`` (and optionally ``force_scheme``) then HTTP_HOST won't be used to determine where to connect to; instead a specific host will be connected to, but the ``Host`` header in the request will remain intact. RcCs||_||_dS(N(t force_hostt force_scheme(RRPRQ((s5/usr/local/lib/python2.7/dist-packages/paste/proxy.pyR®s cCs,d|jjtt|ƒƒ|j|jfS(Ns%<%s %s force_host=%r force_scheme=%r>(t __class__RKthextidRPRQ(R((s5/usr/local/lib/python2.7/dist-packages/paste/proxy.pyt__repr__³s cCsã|d}|jdkr"|}n |j}|dkrCtj}n(|dkr[tj}ntd|ƒ‚d|kr†tdƒ‚n|d}|jdkr¨|}n |j}||ƒ}i} xR|jƒD]D\} } | jdƒrÐ| dj ƒj d d ƒ} | | | Rt conn_schemeR?Rt conn_hostR@RARBRCRERDRRHRIR8((s5/usr/local/lib/python2.7/dist-packages/paste/proxy.pyRJ¹sn                           N(RKRLt__doc__R;RRURJ(((s5/usr/local/lib/python2.7/dist-packages/paste/proxy.pyROžs   cCsMg}tjrWx7|jƒD]4\}}|jƒtkr|j||fƒqqWnòxï|jD]ä}|ssqan|djƒrÛ|sœtd|ƒ‚n|j ƒ\}}|d|j ƒ}|j||fƒqany|j ddƒ\}}Wntd|ƒ‚nX|j ƒ}|jƒtkra|j||fƒqaqaW|S(sB Turn a Message object into a list of WSGI-style headers. is%First header starts with a space (%r)t t:isInvalid header: %r( tsixtPY3R+Rtfiltered_headerstappendRAtisspaceR*tpoptstriptsplit(tmessageRItheaderRCt full_headert last_headert last_value((s5/usr/local/lib/python2.7/dist-packages/paste/proxy.pyR6ús0  RcCstd|d|ƒS(s Create a proxy that connects to a specific host, but does absolutely no other filtering, including the Host header. RPRQ(RO(RMRPRQ((s5/usr/local/lib/python2.7/dist-packages/paste/proxy.pytmake_transparent_proxys (stransfer-encodingRs keep-alivesproxy-authenticatesproxy-authorizationRRR(R[t six.movesRR'tsix.moves.urllibRR tsix.moves.urllib.parseRR^tpasteRtpaste.util.convertersRR`tobjectR RNROR6R;Rk(((s5/usr/local/lib/python2.7/dist-packages/paste/proxy.pyts( Q \ !