+++ /dev/null
-# -*- coding: utf-8 -*-
-##############################################################################
-# This module is based on OFS.Image originaly copyrighted as:
-#
-# Copyright (c) 2002 Zope Corporation and Contributors. All Rights Reserved.
-#
-# This software is subject to the provisions of the Zope Public License,
-# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
-# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
-# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
-# FOR A PARTICULAR PURPOSE
-#
-##############################################################################
-"""Image object
-
-"""
-
-from cgi import escape
-from cStringIO import StringIO
-from mimetools import choose_boundary
-import struct
-from warnings import warn
-
-from AccessControl.Permissions import change_images_and_files
-from AccessControl.Permissions import view_management_screens
-from AccessControl.Permissions import view as View
-from AccessControl.Permissions import ftp_access
-from AccessControl.Permissions import delete_objects
-from AccessControl.Role import RoleManager
-from AccessControl.SecurityInfo import ClassSecurityInfo
-from Acquisition import Implicit
-from App.class_init import InitializeClass
-from App.special_dtml import DTMLFile
-from DateTime.DateTime import DateTime
-from Persistence import Persistent
-from webdav.common import rfc1123_date
-from webdav.interfaces import IWriteLock
-from webdav.Lockable import ResourceLockedError
-from ZPublisher import HTTPRangeSupport
-from ZPublisher.HTTPRequest import FileUpload
-from ZPublisher.Iterators import filestream_iterator
-from zExceptions import Redirect
-from zope.contenttype import guess_content_type
-from zope.interface import implementedBy
-from zope.interface import implements
-
-from OFS.Cache import Cacheable
-from OFS.PropertyManager import PropertyManager
-from OFS.SimpleItem import Item_w__name__
-
-from zope.event import notify
-from zope.lifecycleevent import ObjectModifiedEvent
-from zope.lifecycleevent import ObjectCreatedEvent
-
-from ZODB.blob import Blob
-
-CHUNK_SIZE = 1 << 16
-
-
-manage_addFileForm = DTMLFile('dtml/imageAdd',
- globals(),
- Kind='File',
- kind='file',
- )
-def manage_addFile(self, id, file='', title='', precondition='',
- content_type='', REQUEST=None):
- """Add a new File object.
-
- Creates a new File object 'id' with the contents of 'file'"""
-
- id = str(id)
- title = str(title)
- content_type = str(content_type)
- precondition = str(precondition)
-
- id, title = cookId(id, title, file)
-
- self=self.this()
- self._setObject(id, File(id,title,file,content_type, precondition))
-
- newFile = self._getOb(id)
- notify(ObjectCreatedEvent(newFile))
-
- if REQUEST is not None:
- REQUEST['RESPONSE'].redirect(self.absolute_url()+'/manage_main')
-
-
-class File(Persistent, Implicit, PropertyManager,
- RoleManager, Item_w__name__, Cacheable):
- """A File object is a content object for arbitrary files."""
-
- implements(implementedBy(Persistent),
- implementedBy(Implicit),
- implementedBy(PropertyManager),
- implementedBy(RoleManager),
- implementedBy(Item_w__name__),
- implementedBy(Cacheable),
- IWriteLock,
- HTTPRangeSupport.HTTPRangeInterface,
- )
- meta_type='Blob File'
-
- security = ClassSecurityInfo()
- security.declareObjectProtected(View)
-
- precondition=''
- size=None
-
- manage_editForm =DTMLFile('dtml/fileEdit',globals(),
- Kind='File',kind='file')
- manage_editForm._setName('manage_editForm')
-
- security.declareProtected(view_management_screens, 'manage')
- security.declareProtected(view_management_screens, 'manage_main')
- manage=manage_main=manage_editForm
- manage_uploadForm=manage_editForm
-
- manage_options=(
- (
- {'label':'Edit', 'action':'manage_main',
- 'help':('OFSP','File_Edit.stx')},
- {'label':'View', 'action':'',
- 'help':('OFSP','File_View.stx')},
- )
- + PropertyManager.manage_options
- + RoleManager.manage_options
- + Item_w__name__.manage_options
- + Cacheable.manage_options
- )
-
- _properties=({'id':'title', 'type': 'string'},
- {'id':'content_type', 'type':'string'},
- )
-
- def __init__(self, id, title, file, content_type='', precondition=''):
- self.__name__=id
- self.title=title
- self.precondition=precondition
- self.uploaded_filename = cookId('', '', file)[0]
- self.bdata = Blob()
-
- content_type=self._get_content_type(file, id, content_type)
- self.update_data(file, content_type)
-
- security.declarePrivate('save')
- def save(self, file):
- bf = self.bdata.open('w')
- bf.write(file.read())
- self.size = bf.tell()
- bf.close()
-
- security.declarePrivate('open')
- def open(self, mode='r'):
- bf = self.bdata.open(mode)
- return bf
-
- security.declarePrivate('updateSize')
- def updateSize(self, size=None):
- if size is None :
- bf = self.open('r')
- bf.seek(0,2)
- self.size = bf.tell()
- bf.close()
- else :
- self.size = size
-
- def _getLegacyData(self) :
- warn("Accessing 'data' attribute may be inefficient with "
- "this blob based file. You should refactor your product "
- "by accessing data like: "
- "f = self.open('r') "
- "data = f.read()",
- DeprecationWarning, stacklevel=2)
- f = self.open()
- data = f.read()
- f.close()
- return data
-
- def _setLegacyData(self, data) :
- warn("Accessing 'data' attribute may be inefficient with "
- "this blob based file. You should refactor your product "
- "by accessing data like: "
- "f = self.save(data)",
- DeprecationWarning, stacklevel=2)
- if isinstance(data, str) :
- sio = StringIO()
- sio.write(data)
- sio.seek(0)
- data = sio
- self.save(data)
-
- data = property(_getLegacyData, _setLegacyData,
- "Data Legacy attribute to ensure compatibility "
- "with derived classes that access data by this way.")
-
- def id(self):
- return self.__name__
-
- def _if_modified_since_request_handler(self, REQUEST, RESPONSE):
- # HTTP If-Modified-Since header handling: return True if
- # we can handle this request by returning a 304 response
- header=REQUEST.get_header('If-Modified-Since', None)
- if header is not None:
- header=header.split( ';')[0]
- # Some proxies seem to send invalid date strings for this
- # header. If the date string is not valid, we ignore it
- # rather than raise an error to be generally consistent
- # with common servers such as Apache (which can usually
- # understand the screwy date string as a lucky side effect
- # of the way they parse it).
- # This happens to be what RFC2616 tells us to do in the face of an
- # invalid date.
- try: mod_since=long(DateTime(header).timeTime())
- except: mod_since=None
- if mod_since is not None:
- if self._p_mtime:
- last_mod = long(self._p_mtime)
- else:
- last_mod = long(0)
- if last_mod > 0 and last_mod <= mod_since:
- RESPONSE.setHeader('Last-Modified',
- rfc1123_date(self._p_mtime))
- RESPONSE.setHeader('Content-Type', self.content_type)
- RESPONSE.setHeader('Accept-Ranges', 'bytes')
- RESPONSE.setStatus(304)
- return True
-
- def _range_request_handler(self, REQUEST, RESPONSE):
- # HTTP Range header handling: return True if we've served a range
- # chunk out of our data.
- range = REQUEST.get_header('Range', None)
- request_range = REQUEST.get_header('Request-Range', None)
- if request_range is not None:
- # Netscape 2 through 4 and MSIE 3 implement a draft version
- # Later on, we need to serve a different mime-type as well.
- range = request_range
- if_range = REQUEST.get_header('If-Range', None)
- if range is not None:
- ranges = HTTPRangeSupport.parseRange(range)
-
- if if_range is not None:
- # Only send ranges if the data isn't modified, otherwise send
- # the whole object. Support both ETags and Last-Modified dates!
- if len(if_range) > 1 and if_range[:2] == 'ts':
- # ETag:
- if if_range != self.http__etag():
- # Modified, so send a normal response. We delete
- # the ranges, which causes us to skip to the 200
- # response.
- ranges = None
- else:
- # Date
- date = if_range.split( ';')[0]
- try: mod_since=long(DateTime(date).timeTime())
- except: mod_since=None
- if mod_since is not None:
- if self._p_mtime:
- last_mod = long(self._p_mtime)
- else:
- last_mod = long(0)
- if last_mod > mod_since:
- # Modified, so send a normal response. We delete
- # the ranges, which causes us to skip to the 200
- # response.
- ranges = None
-
- if ranges:
- # Search for satisfiable ranges.
- satisfiable = 0
- for start, end in ranges:
- if start < self.size:
- satisfiable = 1
- break
-
- if not satisfiable:
- RESPONSE.setHeader('Content-Range',
- 'bytes */%d' % self.size)
- RESPONSE.setHeader('Accept-Ranges', 'bytes')
- RESPONSE.setHeader('Last-Modified',
- rfc1123_date(self._p_mtime))
- RESPONSE.setHeader('Content-Type', self.content_type)
- RESPONSE.setHeader('Content-Length', self.size)
- RESPONSE.setStatus(416)
- return True
-
- ranges = HTTPRangeSupport.expandRanges(ranges, self.size)
-
- if len(ranges) == 1:
- # Easy case, set extra header and return partial set.
- start, end = ranges[0]
- size = end - start
-
- RESPONSE.setHeader('Last-Modified',
- rfc1123_date(self._p_mtime))
- RESPONSE.setHeader('Content-Type', self.content_type)
- RESPONSE.setHeader('Content-Length', size)
- RESPONSE.setHeader('Accept-Ranges', 'bytes')
- RESPONSE.setHeader('Content-Range',
- 'bytes %d-%d/%d' % (start, end - 1, self.size))
- RESPONSE.setStatus(206) # Partial content
-
- bf = self.open('r')
- bf.seek(start)
- RESPONSE.write(bf.read(size))
- bf.close()
- return True
-
- else:
- boundary = choose_boundary()
-
- # Calculate the content length
- size = (8 + len(boundary) + # End marker length
- len(ranges) * ( # Constant lenght per set
- 49 + len(boundary) + len(self.content_type) +
- len('%d' % self.size)))
- for start, end in ranges:
- # Variable length per set
- size = (size + len('%d%d' % (start, end - 1)) +
- end - start)
-
-
- # Some clients implement an earlier draft of the spec, they
- # will only accept x-byteranges.
- draftprefix = (request_range is not None) and 'x-' or ''
-
- RESPONSE.setHeader('Content-Length', size)
- RESPONSE.setHeader('Accept-Ranges', 'bytes')
- RESPONSE.setHeader('Last-Modified',
- rfc1123_date(self._p_mtime))
- RESPONSE.setHeader('Content-Type',
- 'multipart/%sbyteranges; boundary=%s' % (
- draftprefix, boundary))
- RESPONSE.setStatus(206) # Partial content
-
-
- bf = self.open('r')
-# data = self.data
-# # The Pdata map allows us to jump into the Pdata chain
-# # arbitrarily during out-of-order range searching.
-# pdata_map = {}
-# pdata_map[0] = data
-
- for start, end in ranges:
- RESPONSE.write('\r\n--%s\r\n' % boundary)
- RESPONSE.write('Content-Type: %s\r\n' %
- self.content_type)
- RESPONSE.write(
- 'Content-Range: bytes %d-%d/%d\r\n\r\n' % (
- start, end - 1, self.size))
-
-
- size = end - start
- bf.seek(start)
- RESPONSE.write(bf.read(size))
-
- bf.close()
-
- RESPONSE.write('\r\n--%s--\r\n' % boundary)
- return True
-
- security.declareProtected(View, 'index_html')
- def index_html(self, REQUEST, RESPONSE):
- """
- The default view of the contents of a File or Image.
-
- Returns the contents of the file or image. Also, sets the
- Content-Type HTTP header to the objects content type.
- """
-
- if self._if_modified_since_request_handler(REQUEST, RESPONSE):
- # we were able to handle this by returning a 304
- # unfortunately, because the HTTP cache manager uses the cache
- # API, and because 304 responses are required to carry the Expires
- # header for HTTP/1.1, we need to call ZCacheable_set here.
- # This is nonsensical for caches other than the HTTP cache manager
- # unfortunately.
- self.ZCacheable_set(None)
- return ''
-
- if self.precondition and hasattr(self, str(self.precondition)):
- # Grab whatever precondition was defined and then
- # execute it. The precondition will raise an exception
- # if something violates its terms.
- c=getattr(self, str(self.precondition))
- if hasattr(c,'isDocTemp') and c.isDocTemp:
- c(REQUEST['PARENTS'][1],REQUEST)
- else:
- c()
-
- if self._range_request_handler(REQUEST, RESPONSE):
- # we served a chunk of content in response to a range request.
- return ''
-
- RESPONSE.setHeader('Last-Modified', rfc1123_date(self._p_mtime))
- RESPONSE.setHeader('Content-Type', self.content_type)
- RESPONSE.setHeader('Content-Length', self.size)
- RESPONSE.setHeader('Accept-Ranges', 'bytes')
-
- if self.ZCacheable_isCachingEnabled():
- result = self.ZCacheable_get(default=None)
- if result is not None:
- # We will always get None from RAMCacheManager and HTTP
- # Accelerated Cache Manager but we will get
- # something implementing the IStreamIterator interface
- # from a "FileCacheManager"
- return result
-
- self.ZCacheable_set(None)
-
- bf = self.open('r')
- chunk = bf.read(CHUNK_SIZE)
- while chunk :
- RESPONSE.write(chunk)
- chunk = bf.read(CHUNK_SIZE)
- bf.close()
- return ''
-
- security.declareProtected(View, 'view_image_or_file')
- def view_image_or_file(self, URL1):
- """
- The default view of the contents of the File or Image.
- """
- raise Redirect, URL1
-
- security.declareProtected(View, 'PrincipiaSearchSource')
- def PrincipiaSearchSource(self):
- """ Allow file objects to be searched.
- """
- if self.content_type.startswith('text/'):
- bf = self.open('r')
- data = bf.read()
- bf.close()
- return data
- return ''
-
- security.declarePrivate('update_data')
- def update_data(self, file, content_type=None):
- if isinstance(file, unicode):
- raise TypeError('Data can only be str or file-like. '
- 'Unicode objects are expressly forbidden.')
- elif isinstance(file, str) :
- sio = StringIO()
- sio.write(file)
- sio.seek(0)
- file = sio
-
- if content_type is not None: self.content_type=content_type
- self.save(file)
- self.ZCacheable_invalidate()
- self.ZCacheable_set(None)
- self.http__refreshEtag()
-
- security.declareProtected(change_images_and_files, 'manage_edit')
- def manage_edit(self, title, content_type, precondition='',
- filedata=None, REQUEST=None):
- """
- Changes the title and content type attributes of the File or Image.
- """
- if self.wl_isLocked():
- raise ResourceLockedError, "File is locked via WebDAV"
-
- self.title=str(title)
- self.content_type=str(content_type)
- if precondition: self.precondition=str(precondition)
- elif self.precondition: del self.precondition
- if filedata is not None:
- self.update_data(filedata, content_type)
- else:
- self.ZCacheable_invalidate()
-
- notify(ObjectModifiedEvent(self))
-
- if REQUEST:
- message="Saved changes."
- return self.manage_main(self,REQUEST,manage_tabs_message=message)
-
- security.declareProtected(change_images_and_files, 'manage_upload')
- def manage_upload(self,file='',REQUEST=None):
- """
- Replaces the current contents of the File or Image object with file.
-
- The file or images contents are replaced with the contents of 'file'.
- """
- if self.wl_isLocked():
- raise ResourceLockedError, "File is locked via WebDAV"
-
- content_type=self._get_content_type(file, self.__name__,
- 'application/octet-stream')
- self.update_data(file, content_type)
- notify(ObjectModifiedEvent(self))
-
- if REQUEST:
- message="Saved changes."
- return self.manage_main(self,REQUEST,manage_tabs_message=message)
-
- def _get_content_type(self, file, id, content_type=None):
- headers=getattr(file, 'headers', None)
- if headers and headers.has_key('content-type'):
- content_type=headers['content-type']
- else:
- name = getattr(file, 'filename', self.uploaded_filename) or id
- content_type, enc=guess_content_type(name, '', content_type)
- return content_type
-
- security.declareProtected(delete_objects, 'DELETE')
-
- security.declareProtected(change_images_and_files, 'PUT')
- def PUT(self, REQUEST, RESPONSE):
- """Handle HTTP PUT requests"""
- self.dav__init(REQUEST, RESPONSE)
- self.dav__simpleifhandler(REQUEST, RESPONSE, refresh=1)
- type=REQUEST.get_header('content-type', None)
-
- file=REQUEST['BODYFILE']
-
- content_type = self._get_content_type(file, self.__name__,
- type or self.content_type)
- self.update_data(file, content_type)
-
- RESPONSE.setStatus(204)
- return RESPONSE
-
- security.declareProtected(View, 'get_size')
- def get_size(self):
- """Get the size of a file or image.
-
- Returns the size of the file or image.
- """
- size=self.size
- if size is None :
- bf = self.open('r')
- bf.seek(0,2)
- self.size = size = bf.tell()
- bf.close()
- return size
-
- # deprecated; use get_size!
- getSize=get_size
-
- security.declareProtected(View, 'getContentType')
- def getContentType(self):
- """Get the content type of a file or image.
-
- Returns the content type (MIME type) of a file or image.
- """
- return self.content_type
-
-
- def __str__(self): return str(self.data)
- def __len__(self): return 1
-
- security.declareProtected(ftp_access, 'manage_FTPstat')
- security.declareProtected(ftp_access, 'manage_FTPlist')
-
- security.declareProtected(ftp_access, 'manage_FTPget')
- def manage_FTPget(self):
- """Return body for ftp."""
- RESPONSE = self.REQUEST.RESPONSE
-
- if self.ZCacheable_isCachingEnabled():
- result = self.ZCacheable_get(default=None)
- if result is not None:
- # We will always get None from RAMCacheManager but we will get
- # something implementing the IStreamIterator interface
- # from FileCacheManager.
- # the content-length is required here by HTTPResponse, even
- # though FTP doesn't use it.
- RESPONSE.setHeader('Content-Length', self.size)
- return result
-
- bf = self.open('r')
- data = bf.read()
- bf.close()
- RESPONSE.setBase(None)
- return data
-
-manage_addImageForm=DTMLFile('dtml/imageAdd',globals(),
- Kind='Image',kind='image')
-def manage_addImage(self, id, file, title='', precondition='', content_type='',
- REQUEST=None):
- """
- Add a new Image object.
-
- Creates a new Image object 'id' with the contents of 'file'.
- """
-
- id=str(id)
- title=str(title)
- content_type=str(content_type)
- precondition=str(precondition)
-
- id, title = cookId(id, title, file)
-
- self=self.this()
- self._setObject(id, Image(id,title,file,content_type, precondition))
-
- newFile = self._getOb(id)
- notify(ObjectCreatedEvent(newFile))
-
- if REQUEST is not None:
- try: url=self.DestinationURL()
- except: url=REQUEST['URL1']
- REQUEST.RESPONSE.redirect('%s/manage_main' % url)
- return id
-
-
-def getImageInfo(file):
- height = -1
- width = -1
- content_type = ''
-
- # handle GIFs
- data = file.read(24)
- size = len(data)
- if (size >= 10) and data[:6] in ('GIF87a', 'GIF89a'):
- # Check to see if content_type is correct
- content_type = 'image/gif'
- w, h = struct.unpack("<HH", data[6:10])
- width = int(w)
- height = int(h)
-
- # See PNG v1.2 spec (http://www.cdrom.com/pub/png/spec/)
- # Bytes 0-7 are below, 4-byte chunk length, then 'IHDR'
- # and finally the 4-byte width, height
- elif ((size >= 24) and (data[:8] == '\211PNG\r\n\032\n')
- and (data[12:16] == 'IHDR')):
- content_type = 'image/png'
- w, h = struct.unpack(">LL", data[16:24])
- width = int(w)
- height = int(h)
-
- # Maybe this is for an older PNG version.
- elif (size >= 16) and (data[:8] == '\211PNG\r\n\032\n'):
- # Check to see if we have the right content type
- content_type = 'image/png'
- w, h = struct.unpack(">LL", data[8:16])
- width = int(w)
- height = int(h)
-
- # handle JPEGs
- elif (size >= 2) and (data[:2] == '\377\330'):
- content_type = 'image/jpeg'
- jpeg = file
- jpeg.seek(0)
- jpeg.read(2)
- b = jpeg.read(1)
- try:
- while (b and ord(b) != 0xDA):
- while (ord(b) != 0xFF): b = jpeg.read(1)
- while (ord(b) == 0xFF): b = jpeg.read(1)
- if (ord(b) >= 0xC0 and ord(b) <= 0xC3):
- jpeg.read(3)
- h, w = struct.unpack(">HH", jpeg.read(4))
- break
- else:
- jpeg.read(int(struct.unpack(">H", jpeg.read(2))[0])-2)
- b = jpeg.read(1)
- width = int(w)
- height = int(h)
- except: pass
-
- return content_type, width, height
-
-
-class Image(File):
- """Image objects can be GIF, PNG or JPEG and have the same methods
- as File objects. Images also have a string representation that
- renders an HTML 'IMG' tag.
- """
- meta_type='Blob Image'
-
- security = ClassSecurityInfo()
- security.declareObjectProtected(View)
-
- alt=''
- height=''
- width=''
-
- # FIXME: Redundant, already in base class
- security.declareProtected(change_images_and_files, 'manage_edit')
- security.declareProtected(change_images_and_files, 'manage_upload')
- security.declareProtected(change_images_and_files, 'PUT')
- security.declareProtected(View, 'index_html')
- security.declareProtected(View, 'get_size')
- security.declareProtected(View, 'getContentType')
- security.declareProtected(ftp_access, 'manage_FTPstat')
- security.declareProtected(ftp_access, 'manage_FTPlist')
- security.declareProtected(ftp_access, 'manage_FTPget')
- security.declareProtected(delete_objects, 'DELETE')
-
- _properties=({'id':'title', 'type': 'string'},
- {'id':'alt', 'type':'string'},
- {'id':'content_type', 'type':'string','mode':'w'},
- {'id':'height', 'type':'string'},
- {'id':'width', 'type':'string'},
- )
-
- manage_options=(
- ({'label':'Edit', 'action':'manage_main',
- 'help':('OFSP','Image_Edit.stx')},
- {'label':'View', 'action':'view_image_or_file',
- 'help':('OFSP','Image_View.stx')},)
- + PropertyManager.manage_options
- + RoleManager.manage_options
- + Item_w__name__.manage_options
- + Cacheable.manage_options
- )
-
- manage_editForm =DTMLFile('dtml/imageEdit',globals(),
- Kind='Image',kind='image')
- manage_editForm._setName('manage_editForm')
-
- security.declareProtected(View, 'view_image_or_file')
- view_image_or_file =DTMLFile('dtml/imageView',globals())
-
- security.declareProtected(view_management_screens, 'manage')
- security.declareProtected(view_management_screens, 'manage_main')
- manage=manage_main=manage_editForm
- manage_uploadForm=manage_editForm
-
- security.declarePrivate('update_data')
- def update_data(self, file, content_type=None):
- super(Image, self).update_data(file, content_type)
- self.updateFormat(size=self.size, content_type=content_type)
-
- security.declarePrivate('updateFormat')
- def updateFormat(self, size=None, dimensions=None, content_type=None):
- self.updateSize(size=size)
-
- if dimensions is None or content_type is None :
- bf = self.open('r')
- ct, width, height = getImageInfo(bf)
- bf.close()
- if ct:
- content_type = ct
- if width >= 0 and height >= 0:
- self.width = width
- self.height = height
-
- # Now we should have the correct content type, or still None
- if content_type is not None: self.content_type = content_type
- else :
- self.width, self.height = dimensions
- self.content_type = content_type
-
- def __str__(self):
- return self.tag()
-
- security.declareProtected(View, 'tag')
- def tag(self, height=None, width=None, alt=None,
- scale=0, xscale=0, yscale=0, css_class=None, title=None, **args):
- """
- Generate an HTML IMG tag for this image, with customization.
- Arguments to self.tag() can be any valid attributes of an IMG tag.
- 'src' will always be an absolute pathname, to prevent redundant
- downloading of images. Defaults are applied intelligently for
- 'height', 'width', and 'alt'. If specified, the 'scale', 'xscale',
- and 'yscale' keyword arguments will be used to automatically adjust
- the output height and width values of the image tag.
-
- Since 'class' is a Python reserved word, it cannot be passed in
- directly in keyword arguments which is a problem if you are
- trying to use 'tag()' to include a CSS class. The tag() method
- will accept a 'css_class' argument that will be converted to
- 'class' in the output tag to work around this.
- """
- if height is None: height=self.height
- if width is None: width=self.width
-
- # Auto-scaling support
- xdelta = xscale or scale
- ydelta = yscale or scale
-
- if xdelta and width:
- width = str(int(round(int(width) * xdelta)))
- if ydelta and height:
- height = str(int(round(int(height) * ydelta)))
-
- result='<img src="%s"' % (self.absolute_url())
-
- if alt is None:
- alt=getattr(self, 'alt', '')
- result = '%s alt="%s"' % (result, escape(alt, 1))
-
- if title is None:
- title=getattr(self, 'title', '')
- result = '%s title="%s"' % (result, escape(title, 1))
-
- if height:
- result = '%s height="%s"' % (result, height)
-
- if width:
- result = '%s width="%s"' % (result, width)
-
- # Omitting 'border' attribute (Collector #1557)
-# if not 'border' in [ x.lower() for x in args.keys()]:
-# result = '%s border="0"' % result
-
- if css_class is not None:
- result = '%s class="%s"' % (result, css_class)
-
- for key in args.keys():
- value = args.get(key)
- if value:
- result = '%s %s="%s"' % (result, key, value)
-
- return '%s />' % result
-
-
-def cookId(id, title, file):
- if not id and hasattr(file,'filename'):
- filename=file.filename
- title=title or filename
- id=filename[max(filename.rfind('/'),
- filename.rfind('\\'),
- filename.rfind(':'),
- )+1:]
- return id, title
projects / Photo.git / blobdiff