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#!/usr/bin/env python2.4
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#
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# DeGAL - A pretty simple web image gallery
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# Copyright (C) 2007 Tero Marttila
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# http://marttila.de/~terom/degal/
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the
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# Free Software Foundation, Inc.,
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# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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import os.path, os
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import urllib
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import logging
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import string
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from datetime import datetime
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import struct
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import base64
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import shelve
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import PIL
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import PIL.Image
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import utils
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__version__ = '0.2'
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TEMPLATE_DIR='templates'
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TEMPLATE_EXT='html'
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logging.basicConfig(
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level=logging.INFO,
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format="%(name)8s %(levelname)8s %(lineno)3d %(message)s",
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)
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tpl = logging.getLogger('tpl')
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index = logging.getLogger('index')
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prepare = logging.getLogger('prepare')
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render = logging.getLogger('render')
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tpl.setLevel(logging.WARNING)
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#for l in (tpl, index, prepare, render) :
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# l.setLevel(logging.DEBUG)
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def readFile (path) :
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fo = open(path, 'r')
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data = fo.read()
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fo.close()
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return data
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class Template (object) :
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GLOBALS = dict(
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VERSION=__version__,
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)
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def __init__ (self, name) :
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self.name = name
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self.path = os.path.join(TEMPLATE_DIR, "%s.%s" % (name, TEMPLATE_EXT))
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tpl.debug("Template %s at %s", name, self.path)
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self.content = readFile(self.path)
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def render (self, **vars) :
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content = self.content
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vars.update(self.GLOBALS)
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for name, value in vars.iteritems() :
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content = content.replace('<!-- %s -->' % name, str(value))
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return content
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def renderTo (self, path, **vars) :
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tpl.info("Render %s to %s", self.name, path)
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fo = open(path, 'w')
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fo.write(self.render(**vars))
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fo.close()
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gallery_tpl = Template('gallery')
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image_tpl = Template('image')
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IMAGE_EXTS = ('jpg', 'jpeg', 'png', 'gif', 'bmp')
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THUMB_DIR = 'thumbs'
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PREVIEW_DIR = 'previews'
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TITLE_FILE = 'title.txt'
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THUMB_GEOM = (160, 120)
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PREVIEW_GEOM = (640, 480)
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DEFAULT_TITLE = 'Image gallery'
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def isImage (fname) :
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"""
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Is the given filename likely to be an image file?
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"""
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fname = fname.lower()
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base, ext = os.path.splitext(fname)
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ext = ext.lstrip('.')
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return ext in IMAGE_EXTS
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def link (url, title) :
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"""
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Returns an <a href=""></a> link tag with the given values
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"""
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return "<a href='%s'>%s</a>" % (urllib.quote(url), title)
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def dirUp (count=1) :
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"""
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Returns a relative path to the directly count levels above the current one
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"""
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if not count :
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return '.'
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return os.path.join(*(['..']*count))
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def readTitleDescr (path) :
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"""
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Read a title.txt or <imgname>.txt file
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"""
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if os.path.exists(path) :
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content = readFile(path)
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if '---' in content :
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title, descr = content.split('---', 1)
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else :
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title, descr = content, ''
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return title.strip(), descr.strip()
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return None, None
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class Folder (object) :
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def __init__ (self, name='.', parent=None) :
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# the directory name
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self.name = name
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# our parent Folder, or None
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self.parent = parent
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# the path to this dir, as a relative path to the root of the image gallery, always starts with .
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if parent and name :
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self.path = parent.pathFor(name)
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else :
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self.path = name
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# the url-path to the index.html file
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self.html_path = self.path
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# dict of fname -> Folder
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self.subdirs = {}
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# dict of fname -> Image
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self.images = {}
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# our human-friendly title
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self.title = None
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# our long-winded description
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self.descr = ''
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# is this folder non-empty?
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self.alive = None
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# self.images.values(), but sorted by filename
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self.sorted_images = []
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# the ShortURL key to this dir
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self.shorturl_code = None
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# were we filtered out?
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self.filtered = False
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def pathFor (self, *fnames) :
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"""
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Return a root-relative path to the given path inside this dir
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"""
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return os.path.join(self.path, *fnames)
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def index (self, filters=None) :
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"""
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Look for other dirs and images inside this dir. Filters must be either None,
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whereupon all files will be included, or a dict of {filename -> next_filter}.
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If given, only filenames that are present in the dict will be indexed, and in
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the case of dirs, the next_filter will be passed on to that Folder's index
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method.
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"""
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index.info("Indexing %s", self.path)
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if filters :
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self.filtered = True
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# iterate through listdir
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for fname in os.listdir(self.path) :
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# the full filesystem path to it
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fpath = self.pathFor(fname)
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# ignore dotfiles
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if fname.startswith('.') :
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index.debug("Skipping dotfile %s", fname)
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continue
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# apply filters
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if filters :
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if fname in filters :
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next_filter = filters[fname]
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else :
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index.debug("Skip `%s' as we have a filter", fname)
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continue
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else :
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next_filter = None
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# recurse into subdirs, but not thumbs/previews
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if os.path.isdir(fpath) and fname not in (THUMB_DIR, PREVIEW_DIR) :
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index.debug("Found subdir %s", fpath)
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f = self.subdirs[fname] = Folder(fname, self)
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f.index(next_filter) # recursion
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# handle images
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elif os.path.isfile(fpath) and isImage(fname) :
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index.debug("Found image %s", fname)
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self.images[fname] = Image(self, fname)
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# ignore everything else
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else :
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index.debug("Ignoring file %s", fname)
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def prepare (self) :
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"""
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Prepare the dir, i.e. sort+prepare the images, as well as recurse
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into subdirs
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"""
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prepare.info("Preparing dir %s", self.path)
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# is this folder non-empty?
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alive = False
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# only create thumbs/previews dirs if we have images in here
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if self.images :
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# folder is non-empty
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alive = True
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prepare.info("Have %d images", len(self.images))
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# create the thumb/preview dirs if needed
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for dir in (THUMB_DIR, PREVIEW_DIR) :
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prepare.debug("Checking for existance of %s dir", dir)
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path = self.pathFor(dir)
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if not os.path.isdir(path) :
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prepare.info("Creating dir %s", path)
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os.mkdir(path)
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# sort the images
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fnames = self.images.keys()
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fnames.sort()
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prev = None
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# link them together and prepare them
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for fname in fnames :
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img = self.images[fname]
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prepare.debug("Linking %s <-> %s", prev, img)
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img.prev = prev
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if prev :
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prev.next = img
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prev = img
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img.prepare()
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# add to the sorted images list
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self.sorted_images.append(img)
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# prepare subdirs
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if self.subdirs :
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prepare.info("Have %d subdirs", len(self.subdirs))
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# just recurse into them, we're alive if one of them is
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for dir in self.subdirs.itervalues() :
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if dir.prepare() :
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alive = True
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# figure out our title
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title_path = self.pathFor(TITLE_FILE)
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title, descr = readTitleDescr(title_path)
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if title :
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prepare.info("Found title/descr")
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self.title = title
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self.descr = descr
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alive = True
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# default title for the root dir
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elif self.name == '.' :
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self.title = 'Index'
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else :
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self.title = self.name
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prepare.debug("Our title is '%s'", self.title)
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# lol ded
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if not alive :
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prepare.info("Dir %s is not alive", self.path)
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self.alive = alive
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return alive
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def getObjInfo (self) :
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"""
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Metadata for shorturls2.db
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"""
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return 'dir', self.path, ''
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def linkTag (self) :
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"""
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A text-link to this dir
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"""
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return link(self.path, self.title)
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def breadcrumb (self) :
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"""
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Returns a [(fname, title)] list of this dir's parent dirs
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"""
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f = self
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b = []
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d = 0
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while f :
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b.insert(0, (dirUp(d), f.title))
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d += 1
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f = f.parent
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return b
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def inRoot (self, *fnames) :
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"""
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Return a relative URL from this dir to the given path in the root dir
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"""
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c = len(self.path.split('/')) - 1
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return os.path.join(*((['..']*c) + list(fnames)))
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def render (self) :
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"""
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Render the index.html, Images, and recurse into subdirs
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"""
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# ded folders are skipped
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if not self.alive :
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render.info("Skipping dir %s", self.path)
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return
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# if this dir's contents were filtered out, then we can't render the index.html, as we aren't aware of all the images in here
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if self.filtered :
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render.warning("Dir `%s' contents were filtered, so we won't render the gallery index again", self.path)
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else :
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# sort the subdirs
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subdirs = self.subdirs.items()
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subdirs.sort()
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# generate the <a href=""></a>'s for the subdirs
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subdir_linkTags = [link(f.name, f.title) for fname, f in subdirs if f.alive]
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397 |
|
|
|
398 |
# stick them into a list
|
|
|
399 |
if subdir_linkTags :
|
|
|
400 |
directories = "<ul>\n\t<li>%s</li>\n</ul>" % "</li>\n\t<li>".join(subdir_linkTags)
|
|
|
401 |
else :
|
|
|
402 |
directories = ''
|
|
|
403 |
|
|
|
404 |
render.info("Rendering %s", self.path)
|
|
|
405 |
|
|
|
406 |
# render to index.html
|
|
|
407 |
gallery_tpl.renderTo(self.pathFor('index.html'),
|
|
|
408 |
STYLE_URL=self.inRoot('style.css'),
|
|
|
409 |
BREADCRUMB=" » ".join([link(u, t) for (u, t) in self.breadcrumb()]),
|
|
|
410 |
TITLE=self.title,
|
|
|
411 |
DIRECTORIES=directories,
|
|
|
412 |
CONTENT="".join([i.thumbImgTag() for i in self.sorted_images]),
|
|
|
413 |
DESCR=self.descr,
|
|
|
414 |
SHORTURL=self.inRoot('s', self.shorturl_code),
|
|
|
415 |
SHORTURL_CODE=self.shorturl_code,
|
|
|
416 |
)
|
|
|
417 |
|
|
|
418 |
# render images
|
|
|
419 |
for img in self.images.itervalues() :
|
|
|
420 |
img.render()
|
|
|
421 |
|
|
|
422 |
# recurse into subdirs
|
|
|
423 |
for dir in self.subdirs.itervalues() :
|
|
|
424 |
dir.render()
|
|
|
425 |
|
|
|
426 |
class Image (object) :
|
|
|
427 |
def __init__ (self, dir, name) :
|
|
|
428 |
# the image filename, e.g. DSC3948.JPG
|
|
|
429 |
self.name = name
|
|
|
430 |
|
|
|
431 |
# the Folder object that we are in
|
|
|
432 |
self.dir = dir
|
|
|
433 |
|
|
|
434 |
# the relative path from the root to us
|
|
|
435 |
self.path = dir.pathFor(name)
|
|
|
436 |
|
|
|
437 |
# the basename+ext, e.g. DSCR3948, .JPG
|
|
|
438 |
self.base_name, self.ext = os.path.splitext(name)
|
|
|
439 |
|
|
|
440 |
# the root-relative paths to the thumb and preview images
|
|
|
441 |
self.thumb_path = self.dir.pathFor(THUMB_DIR, self.name)
|
|
|
442 |
self.preview_path = self.dir.pathFor(PREVIEW_DIR, self.name)
|
|
|
443 |
|
|
|
444 |
# our user-friendly title
|
|
|
445 |
self.title = name
|
|
|
446 |
|
|
|
447 |
# our long-winded description
|
|
|
448 |
self.descr = ''
|
|
|
449 |
|
|
|
450 |
# the image before and after us, both may be None
|
|
|
451 |
self.prev = self.next = None
|
|
|
452 |
|
|
|
453 |
# the name of the .html gallery view thing for this image, *always* self.name + ".html"
|
|
|
454 |
self.html_name = self.name + ".html"
|
|
|
455 |
|
|
|
456 |
# the root-relative path to the gallery view
|
|
|
457 |
self.html_path = self.dir.pathFor(self.html_name)
|
|
|
458 |
|
|
|
459 |
#
|
|
|
460 |
# Figured out after prepare
|
|
|
461 |
#
|
|
|
462 |
|
|
|
463 |
# (w, h) tuple
|
|
|
464 |
self.img_size = None
|
|
|
465 |
|
|
|
466 |
# the ShortURL code for this image
|
|
|
467 |
self.shorturl_code = None
|
|
|
468 |
|
|
|
469 |
# what to use in the rendered templates, intended to be overridden by subclasses
|
|
|
470 |
self.series_act = "add"
|
|
|
471 |
self.series_verb = "Add to"
|
|
|
472 |
|
|
|
473 |
def prepare (self) :
|
|
|
474 |
"""
|
|
|
475 |
Generate the thumbnail/preview views if needed, get the image info, and look for the title
|
|
|
476 |
"""
|
|
|
477 |
|
|
|
478 |
prepare.info("Preparing image %s", self.path)
|
|
|
479 |
|
|
|
480 |
# stat the image file to get the filesize and mtime
|
|
|
481 |
st = os.stat(self.path)
|
|
|
482 |
|
|
|
483 |
self.filesize = st.st_size
|
|
|
484 |
self.timestamp = st.st_mtime
|
|
|
485 |
|
|
|
486 |
# open the image in PIL to get image attributes + generate thumbnails
|
|
|
487 |
img = PIL.Image.open(self.path)
|
|
|
488 |
|
|
|
489 |
self.img_size = img.size
|
|
|
490 |
|
|
|
491 |
for out_path, geom in ((self.thumb_path, THUMB_GEOM), (self.preview_path, PREVIEW_GEOM)) :
|
|
|
492 |
# if it doesn't exist, or it's older than the image itself, generate
|
|
|
493 |
if not (os.path.exists(out_path) and os.stat(out_path).st_mtime > self.timestamp) :
|
|
|
494 |
prepare.info("Create thumbnailed image at %s with geom %s", out_path, geom)
|
|
|
495 |
|
|
|
496 |
# XXX: is this the most efficient way to do this?
|
|
|
497 |
out_img = img.copy()
|
|
|
498 |
out_img.thumbnail(geom, resample=True)
|
|
|
499 |
out_img.save(out_path)
|
|
|
500 |
|
|
|
501 |
# look for the metadata file
|
|
|
502 |
title_path = self.dir.pathFor(self.base_name + '.txt')
|
|
|
503 |
prepare.debug("Looking for title at %s", title_path)
|
|
|
504 |
|
|
|
505 |
title, descr = readTitleDescr(title_path)
|
|
|
506 |
|
|
|
507 |
if title :
|
|
|
508 |
self.title = title
|
|
|
509 |
self.descr = descr
|
|
|
510 |
|
|
|
511 |
prepare.info("Found title `%s'", self.title)
|
|
|
512 |
|
|
|
513 |
def getObjInfo (self) :
|
|
|
514 |
"""
|
|
|
515 |
Metadata for shorturl2.db
|
|
|
516 |
"""
|
|
|
517 |
return 'img', self.dir.path, self.name
|
|
|
518 |
|
|
|
519 |
def thumbImgTag (self) :
|
|
|
520 |
"""
|
|
|
521 |
a <a><img /></a> of this image's thumbnail. Path relative to directory we are in
|
|
|
522 |
"""
|
|
|
523 |
return link(self.html_name, "<img src='%s' alt='%s' title='%s'>" % (os.path.join(THUMB_DIR, self.name), self.descr, self.title))
|
|
|
524 |
|
|
|
525 |
def previewImgTag (self) :
|
|
|
526 |
"""
|
|
|
527 |
a <a><img /></a> of this image's preview. Path relative to directory we are in
|
|
|
528 |
"""
|
|
|
529 |
return link(self.name, "<img src='%s' alt='%s' title='%s'>" % (os.path.join(PREVIEW_DIR, self.name), self.descr, self.title))
|
|
|
530 |
|
|
|
531 |
def linkTag (self) :
|
|
|
532 |
"""
|
|
|
533 |
a <a></a> text-link to this image
|
|
|
534 |
"""
|
|
|
535 |
return link(self.html_name, self.title)
|
|
|
536 |
|
|
|
537 |
def breadcrumb (self) :
|
|
|
538 |
"""
|
|
|
539 |
Returns a [(fname, title)] list of this image's parents
|
|
|
540 |
"""
|
|
|
541 |
|
|
|
542 |
f = self.dir
|
|
|
543 |
b = [(self.html_name, self.title)]
|
|
|
544 |
d = 0
|
|
|
545 |
|
|
|
546 |
while f :
|
|
|
547 |
b.insert(0, (dirUp(d), f.title))
|
|
|
548 |
|
|
|
549 |
d += 1
|
|
|
550 |
f = f.parent
|
|
|
551 |
|
|
|
552 |
return b
|
|
|
553 |
|
|
|
554 |
def render (self) :
|
|
|
555 |
"""
|
|
|
556 |
Write out the .html file
|
|
|
557 |
"""
|
|
|
558 |
|
|
|
559 |
render.info("Rendering image %s", self.path)
|
|
|
560 |
|
|
|
561 |
image_tpl.renderTo(self.html_path,
|
|
|
562 |
STYLE_URL=self.dir.inRoot('style.css'),
|
|
|
563 |
UP_URL=('.'),
|
|
|
564 |
PREV_URL=(self.prev and self.prev.html_name or ''),
|
|
|
565 |
NEXT_URL=(self.next and self.next.html_name or ''),
|
|
|
566 |
FILE=self.name,
|
|
|
567 |
BREADCRUMB=" » ".join([link(u, t) for u, t in self.breadcrumb()]),
|
|
|
568 |
TITLE=self.title,
|
|
|
569 |
PREVIOUS_THUMB=(self.prev and self.prev.thumbImgTag() or ''),
|
|
|
570 |
IMAGE=self.previewImgTag(),
|
|
|
571 |
NEXT_THUMB=(self.next and self.next.thumbImgTag() or ''),
|
|
|
572 |
DESCRIPTION=self.descr,
|
|
|
573 |
IMGSIZE="%dx%d" % self.img_size,
|
|
|
574 |
FILESIZE=fmtFilesize(self.filesize),
|
|
|
575 |
TIMESTAMP=fmtTimestamp(self.timestamp),
|
|
|
576 |
SHORTURL=self.dir.inRoot('s', self.shorturl_code),
|
|
|
577 |
SHORTURL_CODE=self.shorturl_code,
|
|
|
578 |
SERIES_URL=self.dir.inRoot('series/%s/%s' % (self.series_act, self.shorturl_code)),
|
|
|
579 |
SERIES_VERB=self.series_verb,
|
|
|
580 |
)
|
|
|
581 |
|
|
|
582 |
def __str__ (self) :
|
|
|
583 |
return "Image `%s' in `%s'" % (self.name, self.dir.path)
|
|
|
584 |
|
|
|
585 |
def int2key (id) :
|
|
|
586 |
"""
|
|
|
587 |
Turn an integer into a short-as-possible url-safe string
|
|
|
588 |
"""
|
|
|
589 |
for type in ('B', 'H', 'I') :
|
|
|
590 |
try :
|
|
|
591 |
return base64.b64encode(struct.pack(type, id), '-_').rstrip('=')
|
|
|
592 |
except struct.error :
|
|
|
593 |
continue
|
|
|
594 |
|
|
|
595 |
raise Exception("ID overflow: %s" % id)
|
|
|
596 |
|
|
|
597 |
def updateShorturlDb (root) :
|
|
|
598 |
"""
|
|
|
599 |
DeGAL <= 0.2 used a simple key => path mapping, but now we use
|
|
|
600 |
something more structured, key => (type, dirpath, fname), where
|
|
|
601 |
|
|
|
602 |
type - one of 'img', 'dir'
|
|
|
603 |
dirpath - the path to the directory, e.g. '.', './foobar', './foobar/quux'
|
|
|
604 |
fname - the filename, one of '', 'DSC9839.JPG', 'this.png', etc.
|
|
|
605 |
"""
|
|
|
606 |
|
|
|
607 |
db = shelve.open('shorturls2', 'c')
|
|
|
608 |
|
|
|
609 |
id = db.get('_id', 1)
|
|
|
610 |
|
|
|
611 |
dirqueue = [root]
|
|
|
612 |
|
|
|
613 |
# dict of path -> obj
|
|
|
614 |
paths = {}
|
|
|
615 |
|
|
|
616 |
while dirqueue :
|
|
|
617 |
dir = dirqueue.pop(0)
|
|
|
618 |
|
|
|
619 |
dirqueue.extend(dir.subdirs.itervalues())
|
|
|
620 |
|
|
|
621 |
if dir.alive :
|
|
|
622 |
paths[dir.path] = dir
|
|
|
623 |
|
|
|
624 |
for img in dir.images.itervalues() :
|
|
|
625 |
paths[img.html_path] = img
|
|
|
626 |
|
|
|
627 |
for key in db.keys() :
|
|
|
628 |
if key.startswith('_') :
|
|
|
629 |
continue
|
|
|
630 |
|
|
|
631 |
type, dirpath, fname = db[key]
|
|
|
632 |
|
|
|
633 |
path = os.path.join(dirpath, fname)
|
|
|
634 |
|
|
|
635 |
try :
|
|
|
636 |
paths.pop(path).shorturl_code = key
|
|
|
637 |
index.debug("Code for `%s' is %s", path, key)
|
|
|
638 |
|
|
|
639 |
except KeyError :
|
|
|
640 |
index.debug("Path `%s' in DB does not exist?", path)
|
|
|
641 |
|
|
|
642 |
for obj in paths.itervalues() :
|
|
|
643 |
key = int2key(id)
|
|
|
644 |
id += 1
|
|
|
645 |
|
|
|
646 |
index.info("Alloc code `%s' for `%s'", key, obj.html_path)
|
|
|
647 |
|
|
|
648 |
obj.shorturl_code = key
|
|
|
649 |
|
|
|
650 |
db[key] = obj.getObjInfo()
|
|
|
651 |
|
|
|
652 |
db['_id'] = id
|
|
|
653 |
db.close()
|
|
|
654 |
|
|
|
655 |
def main (targets=()) :
|
|
|
656 |
root_filter = {}
|
|
|
657 |
|
|
|
658 |
for target in targets :
|
|
|
659 |
f = root_filter
|
|
|
660 |
for path_part in target.split('/') :
|
|
|
661 |
if path_part :
|
|
|
662 |
if path_part not in f :
|
|
|
663 |
f[path_part] = {}
|
|
|
664 |
f = f[path_part]
|
|
|
665 |
|
|
|
666 |
index.debug('Filter: %s', root_filter)
|
|
|
667 |
|
|
|
668 |
root = Folder()
|
|
|
669 |
root.index(root_filter)
|
|
|
670 |
root.prepare()
|
|
|
671 |
updateShorturlDb(root)
|
|
|
672 |
root.render()
|
|
|
673 |
|
|
|
674 |
def fmtFilesize (size) :
|
|
|
675 |
return utils.formatbytes(size, forcekb=False, largestonly=True, kiloname='K', meganame='M', bytename='B', nospace=True)
|
|
|
676 |
|
|
|
677 |
def fmtTimestamp (ts) :
|
|
|
678 |
return datetime.fromtimestamp(ts).strftime("%Y/%m/%d %H:%M")
|
|
|
679 |
|
|
|
680 |
if __name__ == '__main__' :
|
|
|
681 |
from sys import argv
|
|
|
682 |
argv.pop(0)
|
|
|
683 |
|
|
|
684 |
main(argv)
|
|
|
685 |
|