Early refactoring of document related classes.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@11807 20353a03-c40f-0410-a6d1-a30d3c3de9de

Early refactoring of document related classes.
git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@11807 20353a03-c40f-0410-a6d1-a30d3c3de9de
4b448f8a · Jean-Paul Smets · 35f0ca7a · 4b448f8a · 4b448f8a · 4b448f8a
Commit 4b448f8a authored Dec 31, 2006 by Jean-Paul Smets
3 changed files
--- a/product/ERP5/Document/Document.py
+++ b/product/ERP5/Document/Document.py
--- a/product/ERP5/Document/File.py
+++ b/product/ERP5/Document/File.py
@@ -30,86 +30,165 @@ from AccessControl import ClassSecurityInfo

 from Products.CMFCore.WorkflowCore import WorkflowMethod
 from Products.ERP5Type import Permissions, PropertySheet, Constraint, Interface
-from Products.ERP5Type.XMLObject import XMLObject
+from Products.ERP5Type.Cache import CachingMethod
+from Products.ERP5.Document.Document import Document
 from Products.ERP5Type.Base import Base

 from Products.CMFDefault.File import File as CMFFile

 from zLOG import LOG

-class File(XMLObject, CMFFile):
+import mimetypes, re
+from DateTime import DateTime
+mimetypes.init()
+
+rs=[]
+rs.append(re.compile('<HEAD>.*</HEAD>',re.DOTALL|re.MULTILINE|re.IGNORECASE))
+rs.append(re.compile('<!DOCTYPE[^>]*>'))
+rs.append(re.compile('<.?(HTML|BODY)[^>]*>',re.DOTALL|re.MULTILINE|re.IGNORECASE))
+
+def stripHtml(txt): # XXX-JPS to be moved to TextDocument
+  for r in rs:
+    txt=r.sub('',txt)
+  return txt
+
+class File(Document, CMFFile):
+  """
+      A File can contain raw data which can be uploaded and downloaded.
+      It is the root class of Image, OOoDocument (ERP5OOo product),
+      etc. The main purpose of the File class is to handle efficiently
+      large files. It uses Pdata from OFS.File for this purpose.
+
+      File inherits from XMLObject and can be synchronized
+      accross multiple sites.
+
+      Subcontent: File can only contain role information.
+
+      TODO:
+      * make sure ZODB BLOBS are supported to prevent
+       feeding the ZODB cache with unnecessary large data
+  """
+
+  meta_type = 'ERP5 File'
+  portal_type = 'File'
+  add_permission = Permissions.AddPortalContent
+  isPortalContent = 1
+  isRADContent = 1
+  __dav_collection__=0
+
+  # Declarative security
+  security = ClassSecurityInfo()
+  security.declareObjectProtected(Permissions.AccessContentsInformation)
+
+  # Default global values
+  content_type = '' # Required for WebDAV support (default value)
+
+  # Default Properties
+  property_sheets = ( PropertySheet.Base
+    , PropertySheet.CategoryCore
+    , PropertySheet.DublinCore
+    , PropertySheet.Version
+    , PropertySheet.Reference
+    , PropertySheet.Document
+    , PropertySheet.Data
+    )
+  
+  
+  # Declarative interfaces
+  #__implements__ = ( , )
+
+  ### Special edit method
+  security.declarePrivate( '_edit' )
+  def _edit(self, **kw):
+    """\
+      This is used to edit files
    """
-        A File can contain text that can be formatted using
-        *Structured Text* or *HTML*. Text can be automatically translated
-        through the use of 'message catalogs'.
+    if kw.has_key('file'):
+      file = kw.get('file')
+      precondition = kw.get('precondition')
+      if self._isNotEmpty(file):
+        CMFFile._edit(self, precondition=precondition, file=file)
+      del kw['file']
+    Base._edit(self, **kw)
+
+  security.declareProtected( Permissions.ModifyPortalContent, 'edit' )
+  edit = WorkflowMethod( _edit )
+
+  # Copy support needs to be implemented by ExtFile
+  ################################
+  # Special management methods   #
+  ################################
+
+  def manage_afterClone(self, item):
+    Base.manage_afterClone(self, item)
+    CMFFile.manage_afterClone(self, item)
+
+  def manage_afterAdd(self, item, container):
+    Base.manage_afterAdd(self, item, container)
+    CMFFile.manage_afterAdd(self, item, container)
+
+  def manage_beforeDelete(self, item, container):
+    CMFFile.manage_beforeDelete(self, item, container)
+
+  def get_size(self):
+    """
+    has to be overwritten here, otherwise WebDAV fails
+    """
+    try:
+      return len(self.data)
+    except (AttributeError, TypeError):
+      return 0

-        File can only contain role information.
+  getcontentlength = get_size

-        File inherits from XMLObject and can
-        be synchronized accross multiple sites.
+  security.declareProtected(Permissions.View, 'hasFile')
+  def hasFile(self):
    """
+    Checks whether we have an initial file
+    """
+    _marker = []
+    if getattr(self,'data', _marker) is not _marker: # XXX-JPS - use propertysheet accessors
+      return getattr(self,'data') is not None
+    return False

-    meta_type = 'ERP5 File'
-    portal_type = 'File'
-    add_permission = Permissions.AddPortalContent
-    isPortalContent = 1
-    isRADContent = 1
-
-    # Declarative security
-    security = ClassSecurityInfo()
-    security.declareObjectProtected(Permissions.AccessContentsInformation)
-
-    # Default global values
-    content_type = '' # Required for WebDAV support (default value)
-
-    # Declarative properties
-    property_sheets = ( PropertySheet.Base
-                      , PropertySheet.CategoryCore
-                      , PropertySheet.DublinCore
-                      , PropertySheet.Data
-                      )
-
-    # Declarative interfaces
-    #__implements__ = ( , )
-
-    ### Special edit method
-    security.declarePrivate( '_edit' )
-    def _edit(self, **kw):
-      """\
-        This is used to edit files
-      """
-      if kw.has_key('file'):
-        file = kw.get('file')
-        precondition = kw.get('precondition')
-        if self._isNotEmpty(file):
-          CMFFile._edit(self, precondition=precondition, file=file)
-        del kw['file']
-      Base._edit(self, **kw)
-
-    security.declareProtected( Permissions.ModifyPortalContent, 'edit' )
-    edit = WorkflowMethod( _edit )
-
-    # Copy support needs to be implemented by ExtFile
-    ################################
-    # Special management methods   #
-    ################################
-
-    def manage_afterClone(self, item):
-      Base.manage_afterClone(self, item)
-      CMFFile.manage_afterClone(self, item)
-
-    def manage_afterAdd(self, item, container):
-      Base.manage_afterAdd(self, item, container)
-      CMFFile.manage_afterAdd(self, item, container)
-
-    def manage_beforeDelete(self, item, container):
-      CMFFile.manage_beforeDelete(self, item, container)
-
-    # DAV Support
-    index_html = CMFFile.index_html
-    PUT = CMFFile.PUT
-    security.declareProtected('FTP access', 'manage_FTPget', 'manage_FTPstat', 'manage_FTPlist')
-    manage_FTPget = CMFFile.manage_FTPget
-    manage_FTPlist = CMFFile.manage_FTPlist
-    manage_FTPstat = CMFFile.manage_FTPstat
-
+  security.declarePrivate('_unpackData')
+  def _unpackData(self,data):
+    """
+    Unpack Pdata into string
+    """
+    if isinstance(data, str):
+      return data
+    else:
+      data_list = []
+      while data is not None:
+        data_list.append(data.data)
+        data=data.next
+      return ''.join(data_list)
+
+  security.declareProtected(Permissions.ModifyPortalContent, 'guessMimeType')
+  def guessMimeType(self, fname=''):
+    """
+      get mime type from file name
+    """
+    if fname == '': fname = self.getOriginalFilename()
+    if fname:
+      content_type,enc = mimetypes.guess_type(fname)
+      if content_type is not None:
+        self.content_type = content_type
+    return content_type
+
+  security.declareProtected(Permissions.ModifyPortalContent,'PUT')
+  def PUT(self,REQUEST,RESPONSE):
+    CMFFile.PUT(self,REQUEST,RESPONSE)
+    self.DMS_ingestFile(fname=self.getId()) # XXX-JPS we should call here Document_discoverMetadata
+                                            # with the filename as parameter
+
+  # DAV Support
+  index_html = CMFFile.index_html # XXX-JPS - Here we have a security issue - ask seb what to do
+  PUT = CMFFile.PUT # XXX-JPS - Here we have a security issue - ask seb what to do
+  security.declareProtected('FTP access', 'manage_FTPget', 'manage_FTPstat', 'manage_FTPlist')
+  manage_FTPget = CMFFile.manage_FTPget # XXX-JPS - Here we have a security issue - ask seb what to do
+  manage_FTPlist = CMFFile.manage_FTPlist # XXX-JPS - Here we have a security issue - ask seb what to do
+  manage_FTPstat = CMFFile.manage_FTPstat # XXX-JPS - Here we have a security issue - ask seb what to do
+
+# vim: syntax=python shiftwidth=2 
--- a/product/ERP5/Document/Image.py
+++ b/product/ERP5/Document/Image.py