Gecko [ tsuru-no-tsurugi.tokyo ]

Name	Size	Permission	Date
__pycache__	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
asyncio	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
collections	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
concurrent	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
ctypes	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
curses	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
dbm	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
distutils	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
email	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
encodings	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
html	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
http	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
importlib	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
json	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
lib-dynload	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
lib2to3	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
logging	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
multiprocessing	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
pydoc_data	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
sqlite3	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
test	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
unittest	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
urllib	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
venv	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
wsgiref	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
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xmlrpc	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
zoneinfo	[ DIR ]	drwxr-xr-x	2026-02-25 13:03
LICENSE.txt	13.61 KB	-rw-r--r--	2026-01-26 23:55
__future__.py	5.03 KB	-rw-r--r--	2026-01-26 23:55
__phello__.foo.py	64 B	-rw-r--r--	2026-01-26 23:55
_aix_support.py	3.19 KB	-rw-r--r--	2026-01-26 23:55
_bootsubprocess.py	2.61 KB	-rw-r--r--	2026-01-26 23:55
_collections_abc.py	31.53 KB	-rw-r--r--	2026-01-26 23:55
_compat_pickle.py	8.54 KB	-rw-r--r--	2026-01-26 23:55
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_distutils_system_mod.py	6.16 KB	-rw-r--r--	2026-01-26 23:55
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_pyio.py	92.25 KB	-rw-r--r--	2026-01-26 23:55
_sitebuiltins.py	3.05 KB	-rw-r--r--	2026-01-26 23:55
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_sysconfigdata__linux_x86_64-linux-gnu.py	26.84 KB	-rw-r--r--	2026-01-26 23:55
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abc.py	6.37 KB	-rw-r--r--	2026-01-26 23:55
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base64.py	20.36 KB	-rwxr-xr-x	2026-01-26 23:55
bdb.py	31.64 KB	-rw-r--r--	2026-01-26 23:55
binhex.py	14.44 KB	-rw-r--r--	2026-01-26 23:55
bisect.py	3.06 KB	-rw-r--r--	2026-01-26 23:55
bz2.py	11.57 KB	-rw-r--r--	2026-01-26 23:55
cProfile.py	6.2 KB	-rwxr-xr-x	2026-01-26 23:55
calendar.py	24 KB	-rw-r--r--	2026-01-26 23:55
cgi.py	33.3 KB	-rwxr-xr-x	2026-01-26 23:55
cgitb.py	11.81 KB	-rw-r--r--	2026-01-26 23:55
chunk.py	5.31 KB	-rw-r--r--	2026-01-26 23:55
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code.py	10.37 KB	-rw-r--r--	2026-01-26 23:55
codecs.py	35.85 KB	-rw-r--r--	2026-01-26 23:55
codeop.py	5.48 KB	-rw-r--r--	2026-01-26 23:55
colorsys.py	3.92 KB	-rw-r--r--	2026-01-26 23:55
compileall.py	19.78 KB	-rw-r--r--	2026-01-26 23:55
configparser.py	53.33 KB	-rw-r--r--	2026-01-26 23:55
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copy.py	8.48 KB	-rw-r--r--	2026-01-26 23:55
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crypt.py	3.76 KB	-rw-r--r--	2026-01-26 23:55
csv.py	15.65 KB	-rw-r--r--	2026-01-26 23:55
dataclasses.py	55.07 KB	-rw-r--r--	2026-01-26 23:55
datetime.py	86.02 KB	-rw-r--r--	2026-01-26 23:55
decimal.py	320 B	-rw-r--r--	2026-01-26 23:55
difflib.py	81.36 KB	-rw-r--r--	2026-01-26 23:55
dis.py	19.55 KB	-rw-r--r--	2026-01-26 23:55
doctest.py	102.68 KB	-rw-r--r--	2026-01-26 23:55
enum.py	38.9 KB	-rw-r--r--	2026-01-26 23:55
filecmp.py	9.94 KB	-rw-r--r--	2026-01-26 23:55
fileinput.py	16.06 KB	-rw-r--r--	2026-01-26 23:55
fnmatch.py	6.56 KB	-rw-r--r--	2026-01-26 23:55
fractions.py	27.58 KB	-rw-r--r--	2026-01-26 23:55
ftplib.py	34.66 KB	-rw-r--r--	2026-01-26 23:55
functools.py	37.18 KB	-rw-r--r--	2026-01-26 23:55
genericpath.py	4.86 KB	-rw-r--r--	2026-01-26 23:55
getopt.py	7.31 KB	-rw-r--r--	2026-01-26 23:55
getpass.py	5.85 KB	-rw-r--r--	2026-01-26 23:55
gettext.py	27.04 KB	-rw-r--r--	2026-01-26 23:55
glob.py	7.7 KB	-rw-r--r--	2026-01-26 23:55
graphlib.py	9.35 KB	-rw-r--r--	2026-01-26 23:55
gzip.py	21.34 KB	-rw-r--r--	2026-01-26 23:55
hashlib.py	9.99 KB	-rw-r--r--	2026-01-26 23:55
heapq.py	22.34 KB	-rw-r--r--	2026-01-26 23:55
hmac.py	7.54 KB	-rw-r--r--	2026-01-26 23:55
imaplib.py	53.75 KB	-rw-r--r--	2026-01-26 23:55
imghdr.py	3.72 KB	-rw-r--r--	2026-01-26 23:55
imp.py	10.34 KB	-rw-r--r--	2026-01-26 23:55
inspect.py	121.46 KB	-rw-r--r--	2026-01-26 23:55
io.py	4.1 KB	-rw-r--r--	2026-01-26 23:55
ipaddress.py	75.96 KB	-rw-r--r--	2026-01-26 23:55
keyword.py	1.04 KB	-rw-r--r--	2026-01-26 23:55
linecache.py	5.56 KB	-rw-r--r--	2026-01-26 23:55
locale.py	76.3 KB	-rw-r--r--	2026-01-26 23:55
lzma.py	12.97 KB	-rw-r--r--	2026-01-26 23:55
mailbox.py	76.95 KB	-rw-r--r--	2026-01-26 23:55
mailcap.py	8.9 KB	-rw-r--r--	2026-01-26 23:55
mimetypes.py	22.01 KB	-rw-r--r--	2026-01-26 23:55
modulefinder.py	23.83 KB	-rw-r--r--	2026-01-26 23:55
netrc.py	5.61 KB	-rw-r--r--	2026-01-26 23:55
nntplib.py	40.06 KB	-rw-r--r--	2026-01-26 23:55
ntpath.py	26.92 KB	-rw-r--r--	2026-01-26 23:55
nturl2path.py	2.82 KB	-rw-r--r--	2026-01-26 23:55
numbers.py	10.11 KB	-rw-r--r--	2026-01-26 23:55
opcode.py	5.76 KB	-rw-r--r--	2026-01-26 23:55
operator.py	10.5 KB	-rw-r--r--	2026-01-26 23:55
optparse.py	58.95 KB	-rw-r--r--	2026-01-26 23:55
os.py	38.63 KB	-rw-r--r--	2026-01-26 23:55
pathlib.py	48.41 KB	-rw-r--r--	2026-01-26 23:55
pdb.py	61.74 KB	-rwxr-xr-x	2026-01-26 23:55
pickle.py	63.43 KB	-rw-r--r--	2026-01-26 23:55
pickletools.py	91.29 KB	-rw-r--r--	2026-01-26 23:55
pipes.py	8.71 KB	-rw-r--r--	2026-01-26 23:55
pkgutil.py	24 KB	-rw-r--r--	2026-01-26 23:55
platform.py	41.04 KB	-rwxr-xr-x	2026-01-26 23:55
plistlib.py	27.92 KB	-rw-r--r--	2026-01-26 23:55
poplib.py	14.96 KB	-rw-r--r--	2026-01-26 23:55
posixpath.py	15.75 KB	-rw-r--r--	2026-01-26 23:55
pprint.py	23.87 KB	-rw-r--r--	2026-01-26 23:55
profile.py	22.35 KB	-rwxr-xr-x	2026-01-26 23:55
pstats.py	28.64 KB	-rw-r--r--	2026-01-26 23:55
pty.py	5.09 KB	-rw-r--r--	2026-01-26 23:55
py_compile.py	7.69 KB	-rw-r--r--	2026-01-26 23:55
pyclbr.py	11.13 KB	-rw-r--r--	2026-01-26 23:55
pydoc.py	107.31 KB	-rwxr-xr-x	2026-01-26 23:55
queue.py	11.23 KB	-rw-r--r--	2026-01-26 23:55
quopri.py	7.1 KB	-rwxr-xr-x	2026-01-26 23:55
random.py	32.44 KB	-rw-r--r--	2026-01-26 23:55
re.py	15.49 KB	-rw-r--r--	2026-01-26 23:55
reprlib.py	5.14 KB	-rw-r--r--	2026-01-26 23:55
rlcompleter.py	7.63 KB	-rw-r--r--	2026-01-26 23:55
runpy.py	12.8 KB	-rw-r--r--	2026-01-26 23:55
sched.py	6.2 KB	-rw-r--r--	2026-01-26 23:55
secrets.py	1.99 KB	-rw-r--r--	2026-01-26 23:55
selectors.py	19.08 KB	-rw-r--r--	2026-01-26 23:55
shelve.py	8.36 KB	-rw-r--r--	2026-01-26 23:55
shlex.py	13.18 KB	-rw-r--r--	2026-01-26 23:55
shutil.py	53.29 KB	-rw-r--r--	2026-01-26 23:55
signal.py	2.38 KB	-rw-r--r--	2026-01-26 23:55
site.py	23.11 KB	-rw-r--r--	2026-01-26 23:55
sitecustomize.py	155 B	-rw-r--r--	2023-11-21 00:14
smtpd.py	34.34 KB	-rwxr-xr-x	2026-01-26 23:55
smtplib.py	44.35 KB	-rwxr-xr-x	2026-01-26 23:55
sndhdr.py	6.93 KB	-rw-r--r--	2026-01-26 23:55
socket.py	35.92 KB	-rw-r--r--	2026-01-26 23:55
socketserver.py	26.66 KB	-rw-r--r--	2026-01-26 23:55
sre_compile.py	27.32 KB	-rw-r--r--	2026-01-26 23:55
sre_constants.py	7.01 KB	-rw-r--r--	2026-01-26 23:55
sre_parse.py	39.82 KB	-rw-r--r--	2026-01-26 23:55
ssl.py	52.47 KB	-rw-r--r--	2026-01-26 23:55
stat.py	5.36 KB	-rw-r--r--	2026-01-26 23:55
statistics.py	42.19 KB	-rw-r--r--	2026-01-26 23:55
string.py	10.32 KB	-rw-r--r--	2026-01-26 23:55
stringprep.py	12.61 KB	-rw-r--r--	2026-01-26 23:55
struct.py	257 B	-rw-r--r--	2026-01-26 23:55
subprocess.py	82.93 KB	-rw-r--r--	2026-01-26 23:55
sunau.py	17.73 KB	-rw-r--r--	2026-01-26 23:55
symtable.py	9.98 KB	-rw-r--r--	2026-01-26 23:55
sysconfig.py	28.71 KB	-rw-r--r--	2026-01-26 23:55
tabnanny.py	11.03 KB	-rwxr-xr-x	2026-01-26 23:55
tarfile.py	104.93 KB	-rwxr-xr-x	2026-01-26 23:55
telnetlib.py	22.71 KB	-rw-r--r--	2026-01-26 23:55
tempfile.py	33.76 KB	-rw-r--r--	2026-01-26 23:55
textwrap.py	19.31 KB	-rw-r--r--	2026-01-26 23:55
this.py	1003 B	-rw-r--r--	2026-01-26 23:55
threading.py	55.86 KB	-rw-r--r--	2026-01-26 23:55
timeit.py	13.18 KB	-rwxr-xr-x	2026-01-26 23:55
token.py	2.33 KB	-rw-r--r--	2026-01-26 23:55
tokenize.py	25.31 KB	-rw-r--r--	2026-01-26 23:55
trace.py	28.53 KB	-rwxr-xr-x	2026-01-26 23:55
traceback.py	25.61 KB	-rw-r--r--	2026-01-26 23:55
tracemalloc.py	17.62 KB	-rw-r--r--	2026-01-26 23:55
tty.py	879 B	-rw-r--r--	2026-01-26 23:55
turtle.py	140.39 KB	-rw-r--r--	2026-01-26 23:55
types.py	9.88 KB	-rw-r--r--	2026-01-26 23:55
typing.py	90.39 KB	-rw-r--r--	2026-01-26 23:55
uu.py	7.13 KB	-rwxr-xr-x	2026-01-26 23:55
uuid.py	26.86 KB	-rw-r--r--	2026-01-26 23:55
warnings.py	19.23 KB	-rw-r--r--	2026-01-26 23:55
wave.py	17.58 KB	-rw-r--r--	2026-01-26 23:55
weakref.py	21.05 KB	-rw-r--r--	2026-01-26 23:55
webbrowser.py	23.68 KB	-rwxr-xr-x	2026-01-26 23:55
xdrlib.py	5.77 KB	-rw-r--r--	2026-01-26 23:55
zipapp.py	7.36 KB	-rw-r--r--	2026-01-26 23:55
zipfile.py	88.72 KB	-rw-r--r--	2026-01-26 23:55
zipimport.py	30.17 KB	-rw-r--r--	2026-01-26 23:55

Rename

"""Mailcap file handling.  See RFC 1524."""

import os
import warnings
import re

__all__ = ["getcaps","findmatch"]

def lineno_sort_key(entry):
    # Sort in ascending order, with unspecified entries at the end
    if 'lineno' in entry:
        return 0, entry['lineno']
    else:
        return 1, 0

_find_unsafe = re.compile(r'[^\xa1-\U0010FFFF\w@+=:,./-]').search

class UnsafeMailcapInput(Warning):
    """Warning raised when refusing unsafe input"""

# Part 1: top-level interface.

def getcaps():
    """Return a dictionary containing the mailcap database.

The dictionary maps a MIME type (in all lowercase, e.g. 'text/plain')
    to a list of dictionaries corresponding to mailcap entries.  The list
    collects all the entries for that MIME type from all available mailcap
    files.  Each dictionary contains key-value pairs for that MIME type,
    where the viewing command is stored with the key "view".

"""
    caps = {}
    lineno = 0
    for mailcap in listmailcapfiles():
        try:
            fp = open(mailcap, 'r')
        except OSError:
            continue
        with fp:
            morecaps, lineno = _readmailcapfile(fp, lineno)
        for key, value in morecaps.items():
            if not key in caps:
                caps[key] = value
            else:
                caps[key] = caps[key] + value
    return caps

def listmailcapfiles():
    """Return a list of all mailcap files found on the system."""
    # This is mostly a Unix thing, but we use the OS path separator anyway
    if 'MAILCAPS' in os.environ:
        pathstr = os.environ['MAILCAPS']
        mailcaps = pathstr.split(os.pathsep)
    else:
        if 'HOME' in os.environ:
            home = os.environ['HOME']
        else:
            # Don't bother with getpwuid()
            home = '.' # Last resort
        mailcaps = [home + '/.mailcap', '/etc/mailcap',
                '/usr/etc/mailcap', '/usr/local/etc/mailcap']
    return mailcaps

# Part 2: the parser.
def readmailcapfile(fp):
    """Read a mailcap file and return a dictionary keyed by MIME type."""
    warnings.warn('readmailcapfile is deprecated, use getcaps instead',
                  DeprecationWarning, 2)
    caps, _ = _readmailcapfile(fp, None)
    return caps

def _readmailcapfile(fp, lineno):
    """Read a mailcap file and return a dictionary keyed by MIME type.

Each MIME type is mapped to an entry consisting of a list of
    dictionaries; the list will contain more than one such dictionary
    if a given MIME type appears more than once in the mailcap file.
    Each dictionary contains key-value pairs for that MIME type, where
    the viewing command is stored with the key "view".
    """
    caps = {}
    while 1:
        line = fp.readline()
        if not line: break
        # Ignore comments and blank lines
        if line[0] == '#' or line.strip() == '':
            continue
        nextline = line
        # Join continuation lines
        while nextline[-2:] == '\\\n':
            nextline = fp.readline()
            if not nextline: nextline = '\n'
            line = line[:-2] + nextline
        # Parse the line
        key, fields = parseline(line)
        if not (key and fields):
            continue
        if lineno is not None:
            fields['lineno'] = lineno
            lineno += 1
        # Normalize the key
        types = key.split('/')
        for j in range(len(types)):
            types[j] = types[j].strip()
        key = '/'.join(types).lower()
        # Update the database
        if key in caps:
            caps[key].append(fields)
        else:
            caps[key] = [fields]
    return caps, lineno

def parseline(line):
    """Parse one entry in a mailcap file and return a dictionary.

The viewing command is stored as the value with the key "view",
    and the rest of the fields produce key-value pairs in the dict.
    """
    fields = []
    i, n = 0, len(line)
    while i < n:
        field, i = parsefield(line, i, n)
        fields.append(field)
        i = i+1 # Skip semicolon
    if len(fields) < 2:
        return None, None
    key, view, rest = fields[0], fields[1], fields[2:]
    fields = {'view': view}
    for field in rest:
        i = field.find('=')
        if i < 0:
            fkey = field
            fvalue = ""
        else:
            fkey = field[:i].strip()
            fvalue = field[i+1:].strip()
        if fkey in fields:
            # Ignore it
            pass
        else:
            fields[fkey] = fvalue
    return key, fields

def parsefield(line, i, n):
    """Separate one key-value pair in a mailcap entry."""
    start = i
    while i < n:
        c = line[i]
        if c == ';':
            break
        elif c == '\\':
            i = i+2
        else:
            i = i+1
    return line[start:i].strip(), i

# Part 3: using the database.

def findmatch(caps, MIMEtype, key='view', filename="/dev/null", plist=[]):
    """Find a match for a mailcap entry.

Return a tuple containing the command line, and the mailcap entry
    used; (None, None) if no match is found.  This may invoke the
    'test' command of several matching entries before deciding which
    entry to use.

"""
    if _find_unsafe(filename):
        msg = "Refusing to use mailcap with filename %r. Use a safe temporary filename." % (filename,)
        warnings.warn(msg, UnsafeMailcapInput)
        return None, None
    entries = lookup(caps, MIMEtype, key)
    # XXX This code should somehow check for the needsterminal flag.
    for e in entries:
        if 'test' in e:
            test = subst(e['test'], filename, plist)
            if test is None:
                continue
            if test and os.system(test) != 0:
                continue
        command = subst(e[key], MIMEtype, filename, plist)
        if command is not None:
            return command, e
    return None, None

def lookup(caps, MIMEtype, key=None):
    entries = []
    if MIMEtype in caps:
        entries = entries + caps[MIMEtype]
    MIMEtypes = MIMEtype.split('/')
    MIMEtype = MIMEtypes[0] + '/*'
    if MIMEtype in caps:
        entries = entries + caps[MIMEtype]
    if key is not None:
        entries = [e for e in entries if key in e]
    entries = sorted(entries, key=lineno_sort_key)
    return entries

def subst(field, MIMEtype, filename, plist=[]):
    # XXX Actually, this is Unix-specific
    res = ''
    i, n = 0, len(field)
    while i < n:
        c = field[i]; i = i+1
        if c != '%':
            if c == '\\':
                c = field[i:i+1]; i = i+1
            res = res + c
        else:
            c = field[i]; i = i+1
            if c == '%':
                res = res + c
            elif c == 's':
                res = res + filename
            elif c == 't':
                if _find_unsafe(MIMEtype):
                    msg = "Refusing to substitute MIME type %r into a shell command." % (MIMEtype,)
                    warnings.warn(msg, UnsafeMailcapInput)
                    return None
                res = res + MIMEtype
            elif c == '{':
                start = i
                while i < n and field[i] != '}':
                    i = i+1
                name = field[start:i]
                i = i+1
                param = findparam(name, plist)
                if _find_unsafe(param):
                    msg = "Refusing to substitute parameter %r (%s) into a shell command" % (param, name)
                    warnings.warn(msg, UnsafeMailcapInput)
                    return None
                res = res + param
            # XXX To do:
            # %n == number of parts if type is multipart/*
            # %F == list of alternating type and filename for parts
            else:
                res = res + '%' + c
    return res

def findparam(name, plist):
    name = name.lower() + '='
    n = len(name)
    for p in plist:
        if p[:n].lower() == name:
            return p[n:]
    return ''

# Part 4: test program.

def test():
    import sys
    caps = getcaps()
    if not sys.argv[1:]:
        show(caps)
        return
    for i in range(1, len(sys.argv), 2):
        args = sys.argv[i:i+2]
        if len(args) < 2:
            print("usage: mailcap [MIMEtype file] ...")
            return
        MIMEtype = args[0]
        file = args[1]
        command, e = findmatch(caps, MIMEtype, 'view', file)
        if not command:
            print("No viewer found for", type)
        else:
            print("Executing:", command)
            sts = os.system(command)
            sts = os.waitstatus_to_exitcode(sts)
            if sts:
                print("Exit status:", sts)

def show(caps):
    print("Mailcap files:")
    for fn in listmailcapfiles(): print("\t" + fn)
    print()
    if not caps: caps = getcaps()
    print("Mailcap entries:")
    print()
    ckeys = sorted(caps)
    for type in ckeys:
        print(type)
        entries = caps[type]
        for e in entries:
            keys = sorted(e)
            for k in keys:
                print("  %-15s" % k, e[k])
            print()

if __name__ == '__main__':
    test()