spambayes/contrib showclues.py,NONE,1.1

"Tony Meyer" <[email protected]>
Newsgroups gmane.mail.spam.spambayes.cvs
Message-ID <[email protected]>
Update of /cvsroot/spambayes/spambayes/contrib
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv11026/contrib

Added Files:
	showclues.py 
Log Message:
A little script that outputs to stdout a 'show clues' report like the one that Outlook
 creates, with the clues, tokens and message stream.

--- NEW FILE: showclues.py ---
#!/usr/bin/env python

"""Usage: showclues.py [options] [filenames]

Options can one or more of:
    -h
        show usage and exit
    -d DBFILE
        use database in DBFILE
    -p PICKLEFILE
        use pickle (instead of database) in PICKLEFILE
    -m
        markup output with HTML

    -o section:option:value
        set [section, option] in the options database to value

If no filenames are given on the command line, standard input will be
processed as a single message.  If one or more filenames are given on the
command line, each will be processed according to the following rules:

    * If the filename is '-', standard input will be processed as a single
      message (may only be usefully given once).

    * If the filename starts with '+' it will be processed as an MH folder.

    * If the filename is a directory and it contains a subdirectory named
      'cur', it will be processed as a Maildir.

    * If the filename is a directory and it contains a subdirectory named
      'Mail', it will be processed as an MH Mailbox.

    * If the filename is a directory and not a Maildir nor an MH Mailbox, it
      will be processed as a Mailbox directory consisting of just .txt and
      .lorien files.

    * Otherwise, the filename is treated as a Unix-style mailbox (messages
      begin on a line starting with 'From ').
"""

# This module is part of the spambayes project, which is Copyright 2002-5
# The Python Software Foundation and is covered by the Python Software
# Foundation license.

__author__ = "Tony Meyer <[email protected]>"
__credits__ = "All the Spambayes folk."

try:
    True, False
except NameError:
    # Maintain compatibility with Python 2.2
    True, False = 1, 0

import cgi
import sys
import getopt

from spambayes import storage
from spambayes import mboxutils
from spambayes.classifier import Set
from spambayes.Options import options
from spambayes.tokenizer import tokenize

def ShowClues(bayes, msg, as_html=False):
    if as_html:
        heading = "<h2>", "</h2>"
        tt = "<tt>", "</tt>"
        br = "<br />"
        pre = "<pre>", "</pre>"
        strong = "<strong>", "</strong>"
        escape = cgi.escape
        code = "<code>", "</code>"
        wrapper = "<html>\n<head>\n<style>\n\n    h2 {color: green}\n" \
                  "</stytle>\n</head>\n<body>", "</body></html>"
    else:
        heading = '*' * 74 + "\n", "\n" + '*' * 74
        tt = "", ""
        br = ""
        pre = "", ""
        strong = "", ""
        escape = lambda a:a
        code = "", ""
        wrapper = "", ""

    tokens = list(tokenize(msg))
    toks = list(Set(tokens))
    toks.sort()
    score, clues = bayes.spamprob(iter(tokens), evidence=True)
    body = ["%sCombined Score: %d%% (%g)%s\n" %
            (heading[0], round(score*100), score, heading[1])]
    push = body.append

    # Format internal scores.
    word, score = clues.pop(0)
    push("Internal ham score (%s%s%s): %g%s\n" %
         (tt[0], word, tt[1], score, br))
    word, score = clues.pop(0)
    push("Internal spam score (%s%s%s): %g%s\n" %
         (tt[0], word, tt[1], score, br))

    # Format the # ham and spam trained on.
    push(br)
    push("\n")
    push("# ham trained on: %d%s\n" % (bayes.nham, br))
    push("# spam trained on: %d%s\n" % (bayes.nspam, br))
    push(br)
    push("\n")

    # Format the clues.
    push("%s%s Significant Tokens%s\n%s" %
         (heading[0], len(clues), heading[1], pre[0]))
    push(strong[0])
    push("token                               spamprob         #ham  #spam\n")
    push(strong[1])
    push("\n")
    format = " %-12g %8s %6s\n"
    fetchword = bayes.wordinfo.get
    for word, prob in clues:
        record = fetchword(word)
        if record:
            nham = record.hamcount
            nspam = record.spamcount
        else:
            nham = nspam = "-"
        word = repr(word)
        push(escape(word) + " " * (35-len(word)))
        push(format % (prob, nham, nspam))
    push(pre[1])
    push("\n")

    # Now the raw text of the message
    push("%sMessage Stream%s\n%s\n" % (heading[0], heading[1], pre[0]))
    push(escape(msg.as_string()))
    push(pre[1])
    push("\n")

    # Show all the tokens in the message
    push("%sAll Message Tokens%s\n" % (heading[0], heading[1]))
    push("%d unique tokens%s%s" % (len(toks), br, br))
    # Use <code> instead of <pre>, as <pre> is not word-wrapped by IE
    # However, <code> does not require escaping.
    # could use pprint, but not worth it.
    for token in toks:
        push("%s%s%s%s\n" % (code[0], repr(token), code[1], br))

    # Put the body together with the rest of the message.
    body = "%s%s%s" % (wrapper[0], ''.join(body), wrapper[1])
    return body

if __name__ == "__main__":
    opts, args = getopt.getopt(sys.argv[1:], 'hmd:p:o:',
                               ['help', 'option=', 'markup'])
    markup = False
    for opt, arg in opts:
        if opt in ('-m', '--markup'):
            markup = True
        elif opt in ('-h', '--help'):
            print __doc__
            sys.exit()
        elif opt in ('-o', '--option'):
            options.set_from_cmdline(arg, sys.stderr)
    dbname, usedb = storage.database_type(opts)
    bayes = storage.open_storage(dbname, usedb)
    bayes.load()

    if not args:
        args = ["-"]
    for fname in args:
        mbox = mboxutils.getmbox(fname)
        for msg in mbox:
            print ShowClues(bayes, msg, markup)
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