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112 lines
4.2 KiB
TeX
112 lines
4.2 KiB
TeX
\section{\module{mimetools} ---
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Tools for parsing MIME messages}
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\declaremodule{standard}{mimetools}
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\modulesynopsis{Tools for parsing MIME-style message bodies.}
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This module defines a subclass of the
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\refmodule{rfc822}\refstmodindex{rfc822} module's
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\class{Message} class and a number of utility functions that are
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useful for the manipulation for MIME multipart or encoded message.
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It defines the following items:
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\begin{classdesc}{Message}{fp\optional{, seekable}}
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Return a new instance of the \class{Message} class. This is a
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subclass of the \class{rfc822.Message} class, with some additional
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methods (see below). The \var{seekable} argument has the same meaning
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as for \class{rfc822.Message}.
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\end{classdesc}
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\begin{funcdesc}{choose_boundary}{}
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Return a unique string that has a high likelihood of being usable as a
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part boundary. The string has the form
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\code{'\var{hostipaddr}.\var{uid}.\var{pid}.\var{timestamp}.\var{random}'}.
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\end{funcdesc}
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\begin{funcdesc}{decode}{input, output, encoding}
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Read data encoded using the allowed MIME \var{encoding} from open file
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object \var{input} and write the decoded data to open file object
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\var{output}. Valid values for \var{encoding} include
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\code{'base64'}, \code{'quoted-printable'} and \code{'uuencode'}.
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\end{funcdesc}
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\begin{funcdesc}{encode}{input, output, encoding}
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Read data from open file object \var{input} and write it encoded using
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the allowed MIME \var{encoding} to open file object \var{output}.
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Valid values for \var{encoding} are the same as for \method{decode()}.
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\end{funcdesc}
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\begin{funcdesc}{copyliteral}{input, output}
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Read lines from open file \var{input} until \EOF{} and write them to
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open file \var{output}.
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\end{funcdesc}
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\begin{funcdesc}{copybinary}{input, output}
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Read blocks until \EOF{} from open file \var{input} and write them to
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open file \var{output}. The block size is currently fixed at 8192.
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\end{funcdesc}
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\begin{seealso}
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\seemodule{rfc822}{Provides the base class for
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\class{mimetools.Message}.}
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\seemodule{multifile}{Support for reading files which contain
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distinct parts, such as MIME data.}
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\seeurl{http://www.cs.uu.nl/wais/html/na-dir/mail/mime-faq/.html}{
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The MIME Frequently Asked Questions document. For an
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overview of MIME, see the answer to question 1.1 in Part 1
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of this document.}
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\end{seealso}
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\subsection{Additional Methods of Message Objects
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\label{mimetools-message-objects}}
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The \class{Message} class defines the following methods in
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addition to the \class{rfc822.Message} methods:
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\begin{methoddesc}{getplist}{}
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Return the parameter list of the \mailheader{Content-Type} header.
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This is a list of strings. For parameters of the form
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\samp{\var{key}=\var{value}}, \var{key} is converted to lower case but
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\var{value} is not. For example, if the message contains the header
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\samp{Content-type: text/html; spam=1; Spam=2; Spam} then
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\method{getplist()} will return the Python list \code{['spam=1',
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'spam=2', 'Spam']}.
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\end{methoddesc}
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\begin{methoddesc}{getparam}{name}
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Return the \var{value} of the first parameter (as returned by
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\method{getplist()} of the form \samp{\var{name}=\var{value}} for the
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given \var{name}. If \var{value} is surrounded by quotes of the form
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`\code{<}...\code{>}' or `\code{"}...\code{"}', these are removed.
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\end{methoddesc}
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\begin{methoddesc}{getencoding}{}
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Return the encoding specified in the
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\mailheader{Content-Transfer-Encoding} message header. If no such
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header exists, return \code{'7bit'}. The encoding is converted to
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lower case.
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\end{methoddesc}
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\begin{methoddesc}{gettype}{}
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Return the message type (of the form \samp{\var{type}/\var{subtype}})
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as specified in the \mailheader{Content-Type} header. If no such
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header exists, return \code{'text/plain'}. The type is converted to
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lower case.
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\end{methoddesc}
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\begin{methoddesc}{getmaintype}{}
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Return the main type as specified in the \mailheader{Content-Type}
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header. If no such header exists, return \code{'text'}. The main
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type is converted to lower case.
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\end{methoddesc}
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\begin{methoddesc}{getsubtype}{}
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Return the subtype as specified in the \mailheader{Content-Type}
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header. If no such header exists, return \code{'plain'}. The subtype
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is converted to lower case.
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\end{methoddesc}
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