U AT^ @shdZdZddlmZmZmZddlmZddlZddl Z ddl Z ddl m Z ddlmZddlZddlZddlZdd d d d d ddddddg ZdadaddZddZddZddZeadade jddfdd Zd0d d Zd!d"Zd#d Z Gd$ddZ!Gd%d d Z"e jfd&d Z#d1d'dZ$e jfd(dZ%d)dZ&d*dZ'd+dZ(d,dZ)d-d.Z*e+d/krde#dS)2zSupport module for CGI (Common Gateway Interface) scripts. This module defines a number of utilities for use by CGI scripts written in Python. z2.6)StringIOBytesIO TextIOWrapper)MappingN) FeedParser)MessageMiniFieldStorage FieldStorageparseparse_multipart parse_headertestprint_exception print_environ print_formprint_directoryprint_argumentsprint_environ_usagecGsFtr,ts,zttdaWntk r*YnXts6tantat|dS)aWrite a log message, if there is a log file. Even though this function is called initlog(), you should always use log(); log is a variable that is set either to initlog (initially), to dolog (once the log file has been opened), or to nolog (when logging is disabled). 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Data is read as bytes: boundaries and line ends must be converted to bytes for comparisons. rr|TrNrr` r1s  F) rrr?rrrYr startswithrstripendswithr) rm next_boundary last_boundarydelimlast_line_lfend_readrd strippedlineZodelimrrrrsN         z(FieldStorage.read_lines_to_outerboundarycCs|jr |jrdSd|j}|d}d}|jd}|jt|7_|sPd|_q|dr|r|}||krpq||krd|_q|d}q&dS)z5Internal: skip lines until outer boundary if defined.NrTrr`r1r)rrr?rrrYrrZ)rmrrrrdrrrrr s$   zFieldStorage.skip_linescCs&|jrtdStjd|jddSdS)aOverridable: return a readable & writable file. The file will be used as follows: - data is written to it - seek(0) - data is read from it The file is opened in binary mode for files, in text mode for other fields This version opens a temporary file for reading and writing, and immediately deletes (unlinks) it. The trick (on Unix!) is that the file can still be used, but it can't be opened by another process, and it will automatically be deleted when it is closed or when the current process terminates. 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What follows is a test, not an actual exception:

z*

Second try with a small maxlen...

2N) printr2stdoutstderrr rrrrrrr8)r@formr]rrrrr As4    c Csx|dkrt\}}}ddl}ttd||||||}tdtd|ddt|df~dS)Nrz+

Traceback (most recent call last):

z
%s%s
rr`) r2exc_info tracebackr format_tbformat_exception_onlyhtmlescapejoin)rwrjtbrrrvrrrrhs   c Cs\t|}ttdtd|D]"}tdt|dt||q&tdtdS)z#Dump the shell environment as HTML.z

Shell Environment:





N)sortedrrrr)r@rrfrrrrvs  cCst|}ttd|s&tdtd|D]Z}tdt|ddd||}tdttt|d td tt|q2td td S) z$Dump the contents of a form as HTML.z

Form Contents:

z

No form fields.rr: )r\zzrrN)rrrrrreprrw)rrrfrjrrrrs c Csjttdz t}Wn6tk rP}ztdtt|W5d}~XYnXtt|tdS)z#Dump the current directory as HTML.z#

Current Working Directory:

zOSError:N)rrgetcwdrrrstr)pwdmsgrrrrs &cCs(ttdtttjtdS)Nz

Command Line Arguments:

)rr2r<rrrrrs  cCs tddS)z9Dump a list of environment variables used by CGI as HTML.a

These environment variables could have been set:

  • AUTH_TYPE
  • CONTENT_LENGTH
  • CONTENT_TYPE
  • DATE_GMT
  • DATE_LOCAL
  • DOCUMENT_NAME
  • DOCUMENT_ROOT
  • DOCUMENT_URI
  • GATEWAY_INTERFACE
  • LAST_MODIFIED
  • PATH
  • PATH_INFO
  • PATH_TRANSLATED
  • QUERY_STRING
  • REMOTE_ADDR
  • REMOTE_HOST
  • REMOTE_IDENT
  • REMOTE_USER
  • REQUEST_METHOD
  • SCRIPT_NAME
  • SERVER_NAME
  • SERVER_PORT
  • SERVER_PROTOCOL
  • SERVER_ROOT
  • SERVER_SOFTWARE
In addition, HTTP headers sent by the server may be passed in the environment as well. Here are some common variable names:
  • HTTP_ACCEPT
  • HTTP_CONNECTION
  • HTTP_HOST
  • HTTP_PRAGMA
  • HTTP_REFERER
  • HTTP_USER_AGENT
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