ó ú2ec@sNdZddlZddlZddlZddlZejdƒZejdƒZdefd„ƒYZ dd„Z de fd „ƒYZ d e fd „ƒYZd e fd „ƒYZde fd„ƒYZde fd„ƒYZd„Zd„Zd„Zd„Zd„Zd„Zd„Zd„Zd„Zee_ddgZdS(s" Middleware to check for obedience to the WSGI specification. Some of the things this checks: * Signature of the application and start_response (including that keyword arguments are not used). * Environment checks: - Environment is a dictionary (and not a subclass). - That all the required keys are in the environment: REQUEST_METHOD, SERVER_NAME, SERVER_PORT, wsgi.version, wsgi.input, wsgi.errors, wsgi.multithread, wsgi.multiprocess, wsgi.run_once - That HTTP_CONTENT_TYPE and HTTP_CONTENT_LENGTH are not in the environment (these headers should appear as CONTENT_LENGTH and CONTENT_TYPE). - Warns if QUERY_STRING is missing, as the cgi module acts unpredictably in that case. - That CGI-style variables (that don't contain a .) have (non-unicode) string values - That wsgi.version is a tuple - That wsgi.url_scheme is 'http' or 'https' (@@: is this too restrictive?) - Warns if the REQUEST_METHOD is not known (@@: probably too restrictive). - That SCRIPT_NAME and PATH_INFO are empty or start with / - That at least one of SCRIPT_NAME or PATH_INFO are set. - That CONTENT_LENGTH is a positive integer. - That SCRIPT_NAME is not '/' (it should be '', and PATH_INFO should be '/'). - That wsgi.input has the methods read, readline, readlines, and __iter__ - That wsgi.errors has the methods flush, write, writelines * The status is a string, contains a space, starts with an integer, and that integer is in range (> 100). * That the headers is a list (not a subclass, not another kind of sequence). * That the items of the headers are tuples of strings. * That there is no 'status' header (that is used in CGI, but not in WSGI). * That the headers don't contain newlines or colons, end in _ or -, or contain characters codes below 037. * That Content-Type is given if there is content (CGI often has a default content type, but WSGI does not). * That no Content-Type is given when there is no content (@@: is this too restrictive?) * That the exc_info argument to start_response is a tuple or None. * That all calls to the writer are with strings, and no other methods on the writer are accessed. * That wsgi.input is used properly: - .read() is called with zero or one argument - That it returns a string - That readline, readlines, and __iter__ return strings - That .close() is not called - No other methods are provided * That wsgi.errors is used properly: - .write() and .writelines() is called with a string - That .close() is not called, and no other methods are provided. * The response iterator: - That it is not a string (it should be a list of a single string; a string will work, but perform horribly). - That .next() returns a string - That the iterator is not iterated over until start_response has been called (that can signal either a server or application error). - That .close() is called (doesn't raise exception, only prints to sys.stderr, because we only know it isn't called when the object is garbage collected). iÿÿÿÿNs^[a-zA-Z][a-zA-Z0-9\-_]*$s [\000-\037]t WSGIWarningcBseZdZRS(s: Raised in response to WSGI-spec-related warnings (t__name__t __module__t__doc__(((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyRxscs‡fd†}|S(s® When applied between a WSGI server and a WSGI application, this middleware will check for WSGI compliancy on a number of levels. This middleware does not modify the request or response in any way, but will throw an AssertionError if anything seems off (except for a failure to close the application iterator, which will be printed to stderr -- there's no way to throw an exception at that point). csÑt|ƒdkstdƒ‚| s1tdƒ‚|\}‰t|ƒg‰‡‡fd†}t|dƒ|dThe application must return an iterator, if only an empty list( RRt check_environt InputWrappert ErrorWrapperRtFalsetcheck_iteratortIteratorWrapper(R RtenvironRtiterator(t application(RRs4/usr/local/lib/python2.7/dist-packages/paste/lint.pytlint_app‰s    ((Rt global_confR((Rs4/usr/local/lib/python2.7/dist-packages/paste/lint.pyt middleware}s )RcBs>eZd„Zd„Zd„Zd„Zd„Zd„ZRS(cCs ||_dS(N(tinput(tselft wsgi_input((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyt__init__¶scGsFt|ƒdkst‚|jj|Œ}t|tjƒsBt‚|S(Ni(RRR!treadt isinstancetsixt binary_type(R"R tv((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR%¹scGs.|jj|Œ}t|tjƒs*t‚|S(N(R!treadlineR&R'R(R(R"R R)((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR*¿scGslt|ƒdkst‚|jj|Œ}t|tƒs?t‚x&|D]}t|tjƒsFt‚qFW|S(Ni(RRR!t readlinesR&tlistR'R((R"R tlinestline((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR+Äs  ccs&x|jƒ}|sdS|VqWdS(N(R*(R"R.((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyt__iter__Ìs  cCsdstdƒ‚dS(Nis input.close() must not be called(R(R"((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pytcloseÓs(RRR$R%R*R+R/R0(((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR´s      RcBs5eZd„Zd„Zd„Zd„Zd„ZRS(cCs ||_dS(N(terrors(R"t wsgi_errors((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR$ØscCs,t|tjƒst‚|jj|ƒdS(N(R&R't string_typesRR1twrite(R"ts((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR4ÛscCs|jjƒdS(N(R1tflush(R"((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR6ßscCs"x|D]}|j|ƒqWdS(N(R4(R"tseqR.((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyt writelinesâs cCsdstdƒ‚dS(Nis!errors.close() must not be called(R(R"((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR0æs(RRR$R4R6R8R0(((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyRÖs     R cBseZd„Zd„ZRS(cCs ||_dS(N(twriter(R"t wsgi_writer((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR$ëscCs)t|tjƒst‚|j|ƒdS(N(R&R'R(RR9(R"R5((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyt__call__îs(RRR$R;(((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR és tPartialIteratorWrappercBseZd„Zd„ZRS(cCs ||_dS(N(R(R"t wsgi_iterator((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR$ôscCs t|jƒS(N(RR(R"((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR/÷s(RRR$R/(((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR<òs RcBs;eZd„Zd„Zd„ZeZd„Zd„ZRS(cCs.||_t|ƒ|_t|_||_dS(N(toriginal_iteratortiterRRtclosedtcheck_start_response(R"R=RA((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR$ýs  cCs|S(N((R"((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR/scCs\|j stdƒ‚tj|jƒ}|jdk rX|jsLtdƒ‚d|_n|S(NsIterator read after closedsjThe application returns and we started iterating over its body, but start_response has not yet been called(R@RR'tnextRRAR(R"R)((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyRBs     cCs/t|_t|jdƒr+|jjƒndS(NR0(tTrueR@thasattrR>R0(R"((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyR0s cCs5|jstjjdƒn|js1tdƒ‚dS(Ns/Iterator garbage collected without being closed(R@tsyststderrR4R(R"((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyt__del__s     (RRR$R/RBt__next__R0RG(((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyRûs     c Cs½t|tƒs+tdt|ƒ|fƒ‚xEdddddddd d g D]"}||ksMtd |ƒ‚qMWx:d d gD],}||ks€td||dfƒ‚q€Wd|krÏtjdtƒnx`|jƒD]R}d|krôqÜnt||tƒsÜtd|t||ƒ||fƒ‚qÜWt|dt ƒsYtd|dƒ‚|dd+ks}td|dƒ‚t |dƒt |dƒ|dd,krÄtjd |dtƒn|j d!ƒ sû|d!j d"ƒsûtd#|d!ƒ‚|j d$ƒ s2|d$j d"ƒs2td%|d$ƒ‚|j d&ƒrnt|d&ƒd'ksntd(|d&ƒ‚n|j d!ƒs˜d$|ks˜td)ƒ‚n|j d!ƒd"ks¹td*ƒ‚dS(-Ns:Environment is not of the right type: %r (environment: %r)tREQUEST_METHODt SERVER_NAMEt SERVER_PORTs wsgi.versions wsgi.inputs wsgi.errorsswsgi.multithreadswsgi.multiprocesss wsgi.run_onces$Environment missing required key: %rtHTTP_CONTENT_TYPEtHTTP_CONTENT_LENGTHs8Environment should not have the key: %s (use %s instead)it QUERY_STRINGs’QUERY_STRING is not in the WSGI environment; the cgi module will use sys.argv when this variable is missing, so application errors are more likelyt.s9Environmental variable %s is not a string: %r (value: %r)s#wsgi.version should be a tuple (%r)swsgi.url_schemethttpthttpsswsgi.url_scheme unknown: %rtGETtHEADtPOSTtOPTIONStPUTtDELETEtTRACEsUnknown REQUEST_METHOD: %rt SCRIPT_NAMEt/s$SCRIPT_NAME doesn't start with /: %rt PATH_INFOs"PATH_INFO doesn't start with /: %rtCONTENT_LENGTHisInvalid CONTENT_LENGTH: %rsgOne of SCRIPT_NAME or PATH_INFO are required (PATH_INFO should at least be '/' if SCRIPT_NAME is empty)sOSCRIPT_NAME cannot be '/'; it should instead be '', and PATH_INFO should be '/'(RPRQ(RRRSRTRURVRWRX(R&tdictRttypetwarningstwarnRtkeyststrttuplet check_inputt check_errorstgett startswithtint(Rtkey((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyRs`      %    cCsFx?ddddgD]+}t||ƒstd||fƒ‚qWdS(NR%R*R+R/s-wsgi.input (%r) doesn't have the attribute %s(RDR(R#tattr((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyRd_scCsCx<dddgD]+}t||ƒstd||fƒ‚qWdS(NR6R4R8s.wsgi.errors (%r) doesn't have the attribute %s(RDR(R2Rj((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyReescCs¼t|tƒstd|ƒ‚|jddƒd}t|ƒdksWtd|ƒ‚t|ƒ}|dkstd|ƒ‚t|ƒdks¡|dd kr¸tjd |t ƒndS( Ns Status must be a string (not %r)iiis)Status codes must be three characters: %ridsStatus code is invalid: %rit sjThe status string (%r) should be a three-digit integer followed by a single space and a status explanation( R&RbRtsplitRRRhR_R`R(Rt status_codet status_int((s4/usr/local/lib/python2.7/dist-packages/paste/lint.pyRks   "cCsvt|tƒs+td|t|ƒfƒ‚i}x>|D]6}t|tƒsitd|t|ƒfƒ‚t|ƒdkst‚|\}}|jƒdks¯td|ƒ‚d||jƒns0     7"  # A