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优点:简单易学、开发速度快、有很多年“历史”,能找到非常多别人做好的程序来用、配合activeX功能强大,很多php做不到的asp+activeX能做到,例如银行安全控件VariableDescription
ALL_HTTPAllHTTPheaderssentbytheclient.
ALL_RAWRetrievesallheadersintheraw-form.ThedifferencebetweenALL_RAWandALL_HTTPisthatALL_HTTPplacesanHTTP_prefixbeforetheheadernameandtheheader-nameisalwayscapitalized.InALL_RAWtheheadernameandvaluesappearastheyaresentbytheclient.
APPL_MD_PATHRetrievesthemetabasepathforthe(WAM)ApplicationfortheISAPIDLL.
APPL_PHYSICAL_PATHRetrievesthephysicalpathcorrespondingtothemetabasepath.IISconvertstheAPPL_MD_PATHtothephysical(directory)pathtoreturnthisvalue.
AUTH_PASSWORDThevalueenteredintheclientsauthenticationdialog.ThisvariableisonlyavailableifBasicauthenticationisused.
AUTH_TYPETheauthenticationmethodthattheserverusestovalidateuserswhentheyattempttoaccessaprotectedscript.
AUTH_USERRawauthenticatedusername.
CERT_COOKIEUniqueIDforclientcertificate,Returnedasastring.Canbeusedasasignatureforthewholeclientcertificate.
CERT_FLAGSbit0issetto1iftheclientcertificateispresent.
bit1issetto1iftheCertifyingAuthorityoftheclientcertificateisinvalid(notinthelistofrecognizedCAontheserver).
CERT_ISSUERIssuerfieldoftheclientcertificate(O=MS,OU=IAS,CN=username,C=USA).
CERT_KEYSIZENumberofbitsinSecureSocketsLayerconnectionkeysize.Forexample,128.
CERT_SECRETKEYSIZENumberofbitsinservercertificateprivatekey.Forexample,e.g.1024.
CERT_SERIALNUMBERSerialnumberfieldoftheclientcertificate.
CERT_SERVER_ISSUERIssuerfieldoftheservercertificate.
CERT_SERVER_SUBJECTSubjectfieldoftheservercertificate.
CERT_SUBJECTSubjectfieldoftheclientcertificate.
CONTENT_LENGTHThelengthofthecontentasgivenbytheclient.
CONTENT_TYPEThedatatypeofthecontent.Usedwithqueriesthathaveattachedinformation,suchastheHTTPqueriesGET,POST,andPUT.
GATEWAY_INTERFACETherevisionoftheCGIspecificationusedbytheserver.TheformatisCGI/revision.
HTTP_<HeaderName>ThevaluestoredintheheaderHeaderName.AnyheaderotherthanthoselistedinthistablemustbeprefixedbyHTTP_inorderfortheServerVariablescollectiontoretrieveitsvalue.
NoteTheserverinterpretsanyunderscore(_)charactersinHeaderNameasdashesintheactualheader.ForexampleifyouspecifyHTTP_MY_HEADER,theserversearchesforaheadersentasMY-HEADER.
HTTPSReturnsONiftherequestcameinthroughsecurechannel(SSL)oritreturnsOFFiftherequestisforanon-securechannel.
HTTPS_KEYSIZENumberofbitsinSecureSocketsLayerconnectionkeysize.Forexample,128.
HTTPS_SECRETKEYSIZENumberofbitsinservercertificateprivatekey.Forexample,1024.
HTTPS_SERVER_ISSUERIssuerfieldoftheservercertificate.
HTTPS_SERVER_SUBJECTSubjectfieldoftheservercertificate.
INSTANCE_IDTheIDfortheIISinstanceintextualformat.IftheinstanceIDis1,itappearsasastring.YoucanusethisvariabletoretrievetheIDoftheWeb-serverinstance(inthemetabase)towhichtherequestbelongs.
INSTANCE_META_PATHThemetabasepathfortheinstanceofIISthatrespondstotherequest.
LOCAL_ADDRReturnstheServerAddressonwhichtherequestcamein.Thisisimportantonmulti-homedmachineswheretherecanbemultipleIPaddressesboundtoamachineandyouwanttofindoutwhichaddresstherequestused.
LOGON_USERTheWindowsNT |
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