python (3.12.0)
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Zd Zd Z ea da de j> dddfdZ d"dZ!d Z"d Z# G d d Z$ G d d Z%e j> fdZ&d#dZ'e j> fdZ(d Z)d Z*d Z+d Z,d Z-ed!k( r e& yy)$a Support module for CGI (Common Gateway Interface) scripts.
This module defines a number of utilities for use by CGI scripts
written in Python.
The global variable maxlen can be set to an integer indicating the maximum size
of a POST request. POST requests larger than this size will result in a
ValueError being raised during parsing. The default value of this variable is 0,
meaning the request size is unlimited.
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TextIOWrapper)MappingN)
FeedParser)Message) MiniFieldStorage FieldStorageparseparse_multipart parse_headertestprint_exception
print_environ
print_formprint_directoryprint_argumentsprint_environ_usage)
)remove c t j dt d t rt s t t dd at st ant at | y# t $ r Y 'w xY w)a Write 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).
The first argument is a format string; the remaining arguments (if
any) are arguments to the % operator, so e.g.
log("%s: %s", "a", "b")
will write "a: b" to the log file, followed by a newline.
If the global logfp is not None, it should be a file object to
which log data is written.
If the global logfp is None, the global logfile may be a string
giving a filename to open, in append mode. This file should be
world writable!!! If the file can't be opened, logging is
silently disabled (since there is no safe place where we could
send an error message).
z7cgi.log() is deprecated as of 3.10. Use logging instead )
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warningswarnDeprecationWarninglogfilelogfpopenOSErrornologlogdologallargss 7/BuggyBox/python/3.12.0/bootstrap/lib/python3.12/cgi.pyinitlogr, A sZ 0
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s A A$#A$c : t j | |z dz y)z=Write a log message to the log file. See initlog() for docs.
N)r# write)fmtargss r+ r( r( f s KKD4 c y)z9Dummy function, assigned to log when logging is disabled.N r) s r+ r& r& j s r2 c L da t rt j dat ay)zClose the log file.r N)r" r# closer, r' r4 r2 r+ closelogr7 n s G
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} | |d< t j j# | |||| S )a Parse a query in the environment or from a file (default stdin)
Arguments, all optional:
fp : file pointer; default: sys.stdin.buffer
environ : environment dictionary; default: os.environ
keep_blank_values: flag indicating whether blank values in
percent-encoded forms should be treated as blank strings.
A true value indicates that blanks should be retained as
blank strings. The default false value indicates that
blank values are to be ignored and treated as if they were
not included.
strict_parsing: flag indicating what to do with parsing errors.
If false (the default), errors are silently ignored.
If true, errors raise a ValueError exception.
separator: str. The symbol to use for separating the query arguments.
Defaults to &.
Nr zlatin-1REQUEST_METHODGETPOST CONTENT_TYPEzmultipart/form-data) separator!application/x-www-form-urlencodedCONTENT_LENGTH Maximum content length exceededr QUERY_STRINGr8 )r r> )sysstdinhasattrr
isinstancer bufferr
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ValueErrorreaddecodeargvurllibr parse_qs)
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| c} S # t $ r Y >w xY wc c} w ) a Parse multipart input.
Arguments:
fp : input file
pdict: dictionary containing other parameters of content-type header
encoding, errors: request encoding and error handler, passed to
FieldStorage
Returns a dictionary just like parse_qs(): keys are the field names, each
value is a list of values for that field. For non-file fields, the value
is a list of strings.
boundaryasciiz multipart/form-data; boundary={}zCONTENT-LENGTHzContent-Lengthr: r< )headersr errorsrR r> )rM formatr set_typeKeyErrorr
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d d }|||< ||fS ) zfParse a Content-type like header.
Return the main content-type and a dictionary of options.
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y)r z=Like FieldStorage, for use when no file uploads are possible.Nc || _ || _ y)z&Constructor from field name and value.Nr| r} selfr| r} s r+ __init__zMiniFieldStorage.__init__ s
r2 c < d| j d| j dS )z Return printable representation.zMiniFieldStorage(, )r r s r+ __repr__zMiniFieldStorage.__repr__ s -1YY
CCr2 )__name__
__module__ __qualname____doc__filenamelisttypefile type_options dispositiondisposition_optionsr\ r r r4 r2 r+ r r s; G H D D DLK G Dr2 r c e Zd ZdZdddej
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a Store a sequence of fields, reading multipart/form-data.
This class provides naming, typing, files stored on disk, and
more. At the top level, it is accessible like a dictionary, whose
keys are the field names. (Note: None can occur as a field name.)
The items are either a Python list (if there's multiple values) or
another FieldStorage or MiniFieldStorage object. If it's a single
object, it has the following attributes:
name: the field name, if specified; otherwise None
filename: the filename, if specified; otherwise None; this is the
client side filename, *not* the file name on which it is
stored (that's a temporary file you don't deal with)
value: the value as a *string*; for file uploads, this
transparently reads the file every time you request the value
and returns *bytes*
file: the file(-like) object from which you can read the data *as
bytes* ; None if the data is stored a simple string
type: the content-type, or None if not specified
type_options: dictionary of options specified on the content-type
line
disposition: content-disposition, or None if not specified
disposition_options: dictionary of corresponding options
headers: a dictionary(-like) object (sometimes email.message.Message or a
subclass thereof) containing *all* headers
The class is subclassable, mostly for the purpose of overriding
the make_file() method, which is called internally to come up with
a file open for reading and writing. This makes it possible to
override the default choice of storing all files in a temporary
directory and unlinking them as soon as they have been opened.
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k( r| j[ y|dd d k( r| j] ||| y| j_ y# tN $ r Y w xY w) a$ Constructor. Read multipart/* until last part.
Arguments, all optional:
fp : file pointer; default: sys.stdin.buffer
(not used when the request method is GET)
Can be :
1. a TextIOWrapper object
2. an object whose read() and readline() methods return bytes
headers : header dictionary-like object; default:
taken from environ as per CGI spec
outerboundary : terminating multipart boundary
(for internal use only)
environ : environment dictionary; default: os.environ
keep_blank_values: flag indicating whether blank values in
percent-encoded forms should be treated as blank strings.
A true value indicates that blanks should be retained as
blank strings. The default false value indicates that
blank values are to be ignored and treated as if they were
not included.
strict_parsing: flag indicating what to do with parsing errors.
If false (the default), errors are silently ignored.
If true, errors raise a ValueError exception.
limit : used internally to read parts of multipart/form-data forms,
to exit from the reading loop when reached. It is the difference
between the form content-length and the number of bytes already
read
encoding, errors : the encoding and error handler used to decode the
binary stream to strings. Must be the same as the charset defined
for the page sending the form (content-type : meta http-equiv or
header)
max_num_fields: int. If set, then __init__ throws a ValueError
if there are more than n fields read by parse_qsl().
r; r: NHEADrB rC r surrogateescapez content-typer? r< r= r@ content-lengthz?headers must be mapping or an instance of email.message.MessagerL readlinezfp must be file pointerz#outerboundary must be bytes, not %sr zcontent-dispositionr| r z
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read_multi read_single)r rQ r\ r rR rS rT r r r] r r> methodrX cdisprV rU clens r+ r zFieldStorage.__init__J s ^ !2 , ," w & -.446F U?f . ( ^,!" XXa[6668:KLBB)>@ ?G *M' (*1.*A' (")."9 7*,34D,E() w'(:; !8 9 9
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s #N NNc X | j j y # t $ r Y y w xY wN)r r6 AttributeErrorr s r+ __del__zFieldStorage.__del__ s' IIOO s ))c | S r r4 r s r+ __enter__zFieldStorage.__enter__ s r2 c 8 | j j y r )r r6 )r r1 s r+ __exit__zFieldStorage.__exit__ s r2 c V d| j d| j d| j dS )z"Return a printable representation.z
FieldStorage(r r )r| r r} r s r+ r zFieldStorage.__repr__ s! 4==$**6 6r2 c 4 t | j S r )iterkeysr s r+ __iter__zFieldStorage.__iter__ s DIIK r2 c |dk7 r t | | j rR| j j d | j j }| j j d |S | j | j }|S d }|S )Nr} r )r r seekrL r r s r+ __getattr__zFieldStorage.__getattr__ sz 7? & & 99 IINN1 IINN$E IINN1
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"IIE E r2 c | j t d g }| j D ]# }|j |k( s|j | % |s t | t | dk( r|d S |S )zDictionary style indexing.
not indexablerC r )r r r| appendr` rj )r ry founditems r+ __getitem__zFieldStorage.__getitem__ sl 99 O, ,II 4DyyC d!3 43- u:?8OLr2 c || v r;| | }t |t r|D cg c] }|j c}S |j S |S c c}w )z8Dictionary style get() method, including 'value' lookup.rG r r} )r ry defaultr} xs r+ getvaluezFieldStorage.getvalue sE $;IE%&)./A// {{"N 0s Ac n || v r0| | }t |t r|d j S |j S |S )z! Return the first value received.r r )r ry r r} s r+ getfirstzFieldStorage.getfirst) s9 $;IE%& Qx~~% {{"Nr2 c || v r<| | }t |t r|D cg c] }|j c}S |j gS g S c c}w )z Return list of received values.r )r ry r} r s r+ ra zFieldStorage.getlist4 sG $;IE%&)./A// }$I 0s Ac z | j t d t t d | j D S )z Dictionary style keys() method.r c 3 4 K | ] }|j y wr r| ).0r s r+ <genexpr>z$FieldStorage.keys.<locals>.<genexpr>C s 8d 8s )r r setr s r+ r zFieldStorage.keys? s1 99 O, ,C8dii8899r2 c n | j t d t fd| j D S )z%Dictionary style __contains__ method.r c 3 < K | ] }|j k( y wr r )r r ry s r+ r z,FieldStorage.__contains__.<locals>.<genexpr>I s :499#:s )r r any)r ry s `r+ __contains__zFieldStorage.__contains__E s- 99 O, ,: :::r2 c 4 t | j S )z Dictionary style len(x) support.)rj r r s r+ __len__zFieldStorage.__len__K s 499; r2 c Z | j t d t | j S )Nz Cannot be converted to bool.)r r boolr s r+ __bool__zFieldStorage.__bool__O s& 99 :; ;DII r2 c | j j | j }t |t s-t | j dt
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}t j j || j | j | j | j | j" | j$ }|D cg c] \ }}t' || c}}| _ | j+ yc c}}w )z+Internal: read data in query string format. should return bytes, got r8 r r] r r> N)rQ rL r rG r rK r r rM r r] r rO r parse_qslrS rT r r> r r
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kD rn nn| jE y) z/Internal: read a part that is itself multipart.z$Invalid boundary in multipart form: r c 3 : K | ] \ }}t || y wr )r )r ry r} s r+ r z*FieldStorage.read_multi.<locals>.<genexpr>q s Rjc5 -c5 9 Rs r --Nr2 r rC r z Max number of fields exceeded)#r valid_boundaryrK r r rO r r rS rT r r] r r> extendFieldStorageClass __class__rQ r rG r r r r rj rk r feedrM r6 r r r r r )r rR rS rT ibr klass
first_liner parserhdr_textdatar\ r parts r+ r zFieldStorage.read_multif s
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r2 c | j dk\ r!| j | j n| j | j j d y)z Internal: read an atomic part.r N)r read_binaryr
read_linesr r r s r+ r zFieldStorage.read_single s> ;;! OO OO qr2 i c | j | _ | j }|dk\ r|dkD r| j j t || j }t |t s-t | j dt | j | xj t | z
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}|dkD ryyy)zInternal: read binary data.r r rr N) make_filer r rQ rL minbufsizerG r rK r r r rj r r/ )r todor s r+ r zFieldStorage.read_binary s NN$ {{ 19(ww||Cdll$;<!$.$(,d1D1D&F G G3t9, "DI %c$i' ( r2 c | j rt x| _ | _ nt x| _ | _ | j
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y| j y)z0Internal: read lines until EOF or outerboundary.N)r r r _FieldStorage__filer r read_lines_to_outerboundaryread_lines_to_eofr s r+ r zFieldStorage.read_lines sL &-i /DI &.j 0DI , , . " " $r2 c | j z| j j t | z dkD rQ| j | _ | j j }| j j
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|j | j | j y)z line is always bytes, not stringNi ) r tellrj r r r r/ r rM r r] )r rw r s r+ __writezFieldStorage.__write s ;; "{{ !CI-4 NN , {{++- % " IIOOD !
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c_ |sd| _ y| j | U)z Internal: read lines until EOF. rr N)rQ r r rj r _FieldStorage__write)r rw s r+ r z FieldStorage.read_lines_to_eof sI 77##E*D OOs4y (O LL
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77##E*D OOs4y (O }}U# #zz| =0 =0 !DI "mmE 2O r2 c | j rt j d S t j d| j d S )a Overridable: return a readable & writable file.
The file will be used as follows:
- data is written to it
- seek(0)
- data is read from it
The file is opened in binary mode for files, in text mode
for other fields
This version opens a temporary file for reading and writing,
and immediately deletes (unlinks) it. The trick (on Unix!) is
that the file can still be used, but it can't be opened by
another process, and it will automatically be deleted when it
is closed or when the current process terminates.
If you want a more permanent file, you derive a class which
overrides this method. If you want a visible temporary file
that is nevertheless automatically deleted when the script
terminates, try defining a __del__ method in a derived class
which unlinks the temporary files you have created.
zwb+zw+r. )r newline)r tempfile
TemporaryFiler r s r+ r zFieldStorage.make_file3 s< 0 ))%0 0))$ $8
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t | t | y# t Y QxY w# t Y yxY w)zRobust test CGI script, usable as main program.
Write minimal HTTP headers and dump all information provided to
the script in HTML form.
zContent-type: text/htmlc t d y )Nz,testing print_exception() -- <I>italics?</I>)execr4 r2 r+ rn ztest.<locals>.ff s ? @r2 c | y r r4 )rn s r+ gztest.<locals>.gh s
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t | j }t t d t d |D ]9 }t dt j | dt j | | ; t d t y)z#Dump the shell environment as HTML.z<H3>Shell Environment:</H3><DL><DT><DD></DL>N)sortedr r r' r( )rR r ry s r+ r r sh ',,. !D G
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| Y d}~t yd}~ww xY w)z#Dump the current directory as HTML.z#<H3>Current Working Directory:</H3>zOSError:N)r r getcwdr' r( r% str)pwdmsgs r+ r r sk G
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,- G #((O Gr2 c t d y)z9Dump a list of environment variables used by CGI as HTML.a
<H3>These environment variables could have been set:</H3>
<UL>
<LI>AUTH_TYPE
<LI>CONTENT_LENGTH
<LI>CONTENT_TYPE
<LI>DATE_GMT
<LI>DATE_LOCAL
<LI>DOCUMENT_NAME
<LI>DOCUMENT_ROOT
<LI>DOCUMENT_URI
<LI>GATEWAY_INTERFACE
<LI>LAST_MODIFIED
<LI>PATH
<LI>PATH_INFO
<LI>PATH_TRANSLATED
<LI>QUERY_STRING
<LI>REMOTE_ADDR
<LI>REMOTE_HOST
<LI>REMOTE_IDENT
<LI>REMOTE_USER
<LI>REQUEST_METHOD
<LI>SCRIPT_NAME
<LI>SERVER_NAME
<LI>SERVER_PORT
<LI>SERVER_PROTOCOL
<LI>SERVER_ROOT
<LI>SERVER_SOFTWARE
</UL>
In addition, HTTP headers sent by the server may be passed in the
environment as well. Here are some common variable names:
<UL>
<LI>HTTP_ACCEPT
<LI>HTTP_CONNECTION
<LI>HTTP_HOST
<LI>HTTP_PRAGMA
<LI>HTTP_REFERER
<LI>HTTP_USER_AGENT
</UL>
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