1 # DeGAL - A pretty simple web image gallery

     2 # Copyright (C) 2007 Tero Marttila

     3 # http://marttila.de/~terom/degal/

     4 #

     5 # This program is free software; you can redistribute it and/or modify

     6 # it under the terms of the GNU General Public License as published by

     7 # the Free Software Foundation; either version 2 of the License, or

     8 # (at your option) any later version.

     9 #

    10 # This program is distributed in the hope that it will be useful,

    11 # but WITHOUT ANY WARRANTY; without even the implied warranty of

    12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    13 # GNU General Public License for more details.

    14 #

    15 # You should have received a copy of the GNU General Public License

    16 # along with this program; if not, write to the

    17 # Free Software Foundation, Inc.,

    18 # 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

    19 #

    20 

    21 import os, os.path

    22 

    23 import settings

    24 

    25 def isImage (fname) :

    26     """

    27         Is the given filename likely to be an image file?

    28     """

    29 

    30     fname = fname.lower()

    31     base, ext = os.path.splitext(fname)

    32     ext = ext.lstrip('.')

    33 

    34     return ext in settings.IMAGE_EXTS

    35 

    36 def readFile (path) :

    37     fo = open(path, 'r')

    38     data = fo.read()

    39     fo.close()

    40 

    41     return data

    42 

    43 def fuzzyDecode (bytes) :

    44     try :

    45         return bytes.decode('utf8')

    46     except UnicodeDecodeError :

    47         return bytes.decode('latin1', 'replace')

    48 

    49 def readTitleDescr (path) :

    50     """

    51         Read a title.txt or <imgname>.txt file

    52     """

    53 

    54     if os.path.exists(path) :

    55         content = readFile(path)

    56 

    57         if '---' in content :

    58             title, descr = content.split('---', 1)

    59         else :

    60             title, descr = content, ''

    61         

    62         title, descr = fuzzyDecode(title), fuzzyDecode(descr)

    63 

    64         return title.strip(), descr.strip()

    65 

    66     return u"", u""

    67 

    68 def url (*parts, **kwargs) :

    69     abs = kwargs.pop('abs', False)

    70     up = kwargs.pop('up', 0)

    71     trailing = kwargs.pop('trailing', False)

    72     

    73     return '/'.join(([""]*int(abs)) + ([".."]*up) + list(parts) + ([""]*int(trailing)))

    74 

    75 url_join = url

    76 

    77 def path_join (*parts) :

    78     return os.path.join(*[part for part in parts if part is not None])

    79 

    80 def strip_path (path) :

    81     return path.lstrip('.').lstrip('/')

    82 

    83 def mtime (path) :

    84     try :

    85         return os.stat(path).st_mtime

    86     except OSError :

    87         # no such file or directory

    88         return None

    89