416 lines
20 KiB
Python
416 lines
20 KiB
Python
'''This package contains stuff used at run-time for installing a generated
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Zope product.'''
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# ------------------------------------------------------------------------------
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import os, os.path, time
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import appy
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import appy.version
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import appy.gen as gen
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from appy.gen.po import PoParser
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from appy.gen.utils import updateRolesForPermission, createObject
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from appy.gen.indexer import defaultIndexes, updateIndexes
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from appy.gen.migrator import Migrator
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from appy.shared.data import languages
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# ------------------------------------------------------------------------------
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homePage = '''
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<tal:hp define="tool python: context.config;
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dummy python: request.RESPONSE.redirect(tool.getHomePage())">
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</tal:hp>
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'''
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errorPage = '''
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<tal:main define="tool python: context.config"
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on-error="string: ServerError">
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<html metal:use-macro="context/ui/template/macros/main">
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<div metal:fill-slot="content" tal:define="o python:options">
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<p tal:condition="o/error_message"
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tal:content="structure o/error_message"></p>
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<p>Error type: <b><span tal:replace="o/error_type"/></b></p>
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<p>Error value: <b><span tal:replace="o/error_value"/></b></p>
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<p tal:content="structure o/error_tb"></p>
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</div>
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</html>
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</tal:main>
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'''
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# Stuff for tracking user activity ---------------------------------------------
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loggedUsers = {}
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originalTraverse = None
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doNotTrack = ('.jpg','.gif','.png','.js','.class','.css')
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def traverseWrapper(self, path, response=None, validated_hook=None):
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'''This function is called every time a users gets a URL, this is used for
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tracking user activity. self is a BaseRequest'''
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res = originalTraverse(self, path, response, validated_hook)
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t = time.time()
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if os.path.splitext(path)[-1].lower() not in doNotTrack:
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# Do nothing when the user gets non-pages
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userId = self['AUTHENTICATED_USER'].getId()
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if userId:
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loggedUsers[userId] = t
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# "Touch" the SESSION object. Else, expiration won't occur.
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session = self.SESSION
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return res
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def onDelSession(sessionObject, container):
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'''This function is called when a session expires.'''
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rq = container.REQUEST
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if rq.cookies.has_key('__ac') and rq.cookies.has_key('_ZopeId') and \
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(rq['_ZopeId'] == sessionObject.token):
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# The request comes from a guy whose session has expired.
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resp = rq.RESPONSE
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resp.expireCookie('__ac', path='/')
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resp.setHeader('Content-Type', 'text/html')
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resp.write('<center>For security reasons, your session has ' \
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'expired.</center>')
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# ------------------------------------------------------------------------------
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class ZopeInstaller:
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'''This Zope installer runs every time Zope starts and encounters this
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generated Zope product.'''
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def __init__(self, zopeContext, config, classes):
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self.zopeContext = zopeContext
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self.app = zopeContext._ProductContext__app # The root of the Zope tree
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self.config = config
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self.classes = classes
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# Unwrap some useful config variables
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self.productName = config.PROJECTNAME
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self.languages = config.languages
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self.logger = config.logger
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self.addContentPermissions = config.ADD_CONTENT_PERMISSIONS
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def installUi(self):
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'''Installs the user interface.'''
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# Some useful imports
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from OFS.Folder import manage_addFolder
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from OFS.Image import manage_addImage, manage_addFile
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from Products.PythonScripts.PythonScript import PythonScript
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from Products.PageTemplates.ZopePageTemplate import \
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manage_addPageTemplate
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# Delete the existing folder if it existed.
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zopeContent = self.app.objectIds()
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if 'ui' in zopeContent: self.app.manage_delObjects(['ui'])
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manage_addFolder(self.app, 'ui')
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# Browse the physical ui folders (the Appy one and an app-specific, if
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# the app defines one) and create the corresponding objects in the Zope
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# folder. In the case of files having the same name in both folders,
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# the one from the app-specific folder is chosen.
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j = os.path.join
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uiFolders = [j(j(appy.getPath(), 'gen'), 'ui')]
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appUi = j(self.config.diskFolder, 'ui')
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if os.path.exists(appUi): uiFolders.insert(0, appUi)
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for ui in uiFolders:
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for root, dirs, files in os.walk(ui):
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folderName = root[len(ui):]
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# Get the Zope folder that corresponds to this name
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zopeFolder = self.app.ui
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if folderName:
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for name in folderName.strip(os.sep).split(os.sep):
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zopeFolder = zopeFolder._getOb(name)
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# Create sub-folders at this level
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for name in dirs:
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if not hasattr(zopeFolder.aq_base, name):
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manage_addFolder(zopeFolder, name)
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# Create files at this level
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for name in files:
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zopeName, ext = os.path.splitext(name)
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if ext not in ('.pt', '.py'):
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# In the ZODB, pages and scripts have their name without
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# their extension.
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zopeName = name
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if hasattr(zopeFolder.aq_base, zopeName): continue
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f = file(j(root, name))
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if zopeName == 'favicon.ico':
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if not hasattr(self.app, zopeName):
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# Copy it at the root. Else, IE won't notice it.
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manage_addImage(self.app, zopeName, f)
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elif ext in gen.File.imageExts:
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manage_addImage(zopeFolder, zopeName, f)
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elif ext == '.pt':
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manage_addPageTemplate(zopeFolder,zopeName,'',f.read())
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elif ext == '.py':
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obj = PythonScript(zopeName)
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zopeFolder._setObject(zopeName, obj)
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zopeFolder._getOb(zopeName).write(f.read())
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else:
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manage_addFile(zopeFolder, zopeName, f)
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f.close()
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# Update the home page
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if 'index_html' in zopeContent:
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self.app.manage_delObjects(['index_html'])
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manage_addPageTemplate(self.app, 'index_html', '', homePage)
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# Update the error page
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if 'standard_error_message' in zopeContent:
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self.app.manage_delObjects(['standard_error_message'])
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manage_addPageTemplate(self.app, 'standard_error_message', '',errorPage)
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def installCatalog(self):
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'''Create the catalog at the root of Zope if id does not exist.'''
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if 'catalog' not in self.app.objectIds():
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# Create the catalog
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from Products.ZCatalog.ZCatalog import manage_addZCatalog
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manage_addZCatalog(self.app, 'catalog', '')
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self.logger.info('Appy catalog created.')
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# Create lexicons for ZCTextIndexes
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catalog = self.app.catalog
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lexicons = catalog.objectIds()
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from Products.ZCTextIndex.ZCTextIndex import manage_addLexicon
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if 'xhtml_lexicon' not in lexicons:
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lex = appy.Object(group='XHTML indexer', name='XHTML indexer')
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manage_addLexicon(catalog, 'xhtml_lexicon', elements=[lex])
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if 'text_lexicon' not in lexicons:
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lex = appy.Object(group='Text indexer', name='Text indexer')
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manage_addLexicon(catalog, 'text_lexicon', elements=[lex])
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if 'list_lexicon' not in lexicons:
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lex = appy.Object(group='List indexer', name='List indexer')
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manage_addLexicon(catalog, 'list_lexicon', elements=[lex])
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# Delete the deprecated one if it exists
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if 'lexicon' in lexicons: catalog.manage_delObjects(['lexicon'])
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# Create or update Appy-wide indexes and field-related indexes
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indexInfo = defaultIndexes.copy()
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tool = self.app.config
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for className in self.config.attributes.iterkeys():
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wrapperClass = tool.getAppyClass(className, wrapper=True)
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indexInfo.update(wrapperClass.getIndexes(includeDefaults=False))
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updateIndexes(self, indexInfo)
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def getAddPermission(self, className):
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'''What is the name of the permission allowing to create instances of
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class whose name is p_className?'''
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return self.productName + ': Add ' + className
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def installBaseObjects(self):
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'''Creates the tool and the root data folder if they do not exist.'''
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# Create or update the base folder for storing data
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zopeContent = self.app.objectIds()
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from OFS.Folder import manage_addFolder
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if 'config' not in zopeContent:
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toolName = '%sTool' % self.productName
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createObject(self.app, 'config', toolName, self.productName,
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wf=False, noSecurity=True)
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if 'data' not in zopeContent:
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manage_addFolder(self.app, 'data')
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data = self.app.data
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tool = self.app.config
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# Manager has been granted Add permissions for all root classes.
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# This may not be desired, so remove this.
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for className in self.config.rootClasses:
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permission = self.getAddPermission(className)
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data.manage_permission(permission, (), acquire=0)
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# All roles defined as creators should be able to create the
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# corresponding root classes in this folder.
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i = -1
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for klass in self.config.appClasses:
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i += 1
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if not klass.__dict__.has_key('root') or \
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not klass.__dict__['root']:
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continue # It is not a root class
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className = self.config.appClassNames[i]
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wrapperClass = tool.getAppyClass(className, wrapper=True)
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creators = wrapperClass.getCreators(self.config)
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permission = self.getAddPermission(className)
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updateRolesForPermission(permission, tuple(creators), data)
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# Remove some default objects created by Zope but not useful to Appy
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for name in ('standard_html_footer', 'standard_html_header',\
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'standard_template.pt'):
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if name in zopeContent: self.app.manage_delObjects([name])
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def installTool(self):
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'''Updates the tool (now that the catalog is created) and updates its
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inner objects (users, groups, translations, documents).'''
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tool = self.app.config
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tool.createOrUpdate(True, None)
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tool.refreshSecurity()
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appyTool = tool.appy()
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appyTool.log('Appy version is "%s".' % appy.version.short)
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# Create the admin user if it does not exist.
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if not appyTool.count('User', noSecurity=True, login='admin'):
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appyTool.create('users', noSecurity=True, login='admin',
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password1='admin', password2='admin',
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email='admin@appyframework.org', roles=['Manager'])
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appyTool.log('Admin user "admin" created.')
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# Create group "admins" if it does not exist
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if not appyTool.count('Group', noSecurity=True, login='admins'):
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appyTool.create('groups', noSecurity=True, login='admins',
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title='Administrators', roles=['Manager'])
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appyTool.log('Group "admins" created.')
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# Create a group for every global role defined in the application
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for role in self.config.applicationGlobalRoles:
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relatedGroup = '%s_group' % role
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if appyTool.count('Group', noSecurity=True, login=relatedGroup):
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continue
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appyTool.create('groups', noSecurity=True, login=relatedGroup,
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title=relatedGroup, roles=[role])
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appyTool.log('Group "%s", related to global role "%s", was ' \
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'created.' % (relatedGroup, role))
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# Create POD templates within the tool if required
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for contentType in self.config.attributes.iterkeys():
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appyClass = tool.getAppyClass(contentType)
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if not appyClass: continue # May be an abstract class
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wrapperClass = tool.getAppyClass(contentType, wrapper=True)
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for appyType in wrapperClass.__fields__:
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if appyType.type != 'Pod': continue
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# Find the attribute that stores the template, and store on
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# it the default one specified in the appyType if no
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# template is stored yet.
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attrName = appyTool.getAttributeName('podTemplate', appyClass,
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appyType.name)
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fileObject = getattr(appyTool, attrName)
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if not fileObject or (fileObject.size == 0):
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# There is no file. Put the one specified in the appyType.
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fileName = os.path.join(appyTool.getDiskFolder(),
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appyType.template)
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if os.path.exists(fileName):
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setattr(appyTool, attrName, fileName)
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appyTool.log('Imported "%s" in the tool in ' \
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'attribute "%s"'% (fileName, attrName))
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else:
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appyTool.log('Template "%s" was not found!' % \
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fileName, type='error')
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# Create or update Translation objects
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translations = [t.o.id for t in appyTool.translations]
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# We browse the languages supported by this application and check
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# whether we need to create the corresponding Translation objects.
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for language in self.languages:
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if language in translations: continue
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# We will create, in the tool, the translation object for this
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# language. Determine first its title.
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langId, langEn, langNat = languages.get(language)
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if langEn != langNat:
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title = '%s (%s)' % (langEn, langNat)
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else:
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title = langEn
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appyTool.create('translations', noSecurity=True,
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id=language, title=title)
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appyTool.log('Translation object created for "%s".' % language)
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# Execute custom installation code if any
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if hasattr(appyTool, 'onInstall'): appyTool.onInstall()
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# Now, if required, we synchronise every Translation object with the
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# corresponding "po" file on disk.
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if appyTool.loadTranslationsAtStartup:
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appFolder = self.config.diskFolder
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appName = self.config.PROJECTNAME
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i18nFolder = os.path.join(appFolder, 'tr')
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for translation in appyTool.translations:
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# Get the "po" file
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poName = '%s-%s.po' % (appName, translation.id)
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poFile = PoParser(os.path.join(i18nFolder, poName)).parse()
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for message in poFile.messages:
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setattr(translation, message.id, message.getMessage())
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appyTool.log('Translation "%s" updated from "%s".' % \
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(translation.id, poName))
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def configureSessions(self):
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'''Configure the session machinery.'''
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# Register a function warning us when a session object is deleted. When
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# launching Zope in test mode, the temp folder does not exist.
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if not hasattr(self.app, 'temp_folder'): return
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sessionData = self.app.temp_folder.session_data
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if self.config.enableSessionTimeout:
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sessionData.setDelNotificationTarget(onDelSession)
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else:
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sessionData.setDelNotificationTarget(None)
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def enableUserTracking(self):
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'''Enables the machinery allowing to know who is currently logged in.
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Information about logged users will be stored in RAM, in the variable
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named loggedUsers defined above.'''
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global originalTraverse
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if not originalTraverse:
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# User tracking is not enabled yet. Do it now.
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BaseRequest = self.config.BaseRequest
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originalTraverse = BaseRequest.traverse
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BaseRequest.traverse = traverseWrapper
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def installZopeClasses(self):
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'''Zope-level class registration.'''
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for klass in self.classes:
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name = klass.__name__
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module = klass.__module__
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wrapper = klass.wrapperClass
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exec 'from %s import manage_add%s as ctor' % (module, name)
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self.zopeContext.registerClass(meta_type=name,
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constructors = (ctor,),
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permission = self.addContentPermissions[name])
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# Create workflow prototypical instances in __instance__ attributes
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wf = wrapper.getWorkflow()
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if not hasattr(wf, '__instance__'): wf.__instance__ = wf()
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def installAppyTypes(self):
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'''We complete here the initialisation process of every Appy type of
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every gen-class of the application.'''
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appName = self.productName
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for klass in self.classes:
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# Store on wrapper class the ordered list of Appy types
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wrapperClass = klass.wrapperClass
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if not hasattr(wrapperClass, 'title'):
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# Special field "type" is mandatory for every class.
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title = gen.String(multiplicity=(1,1),show='edit',indexed=True)
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title.init('title', None, 'appy')
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setattr(wrapperClass, 'title', title)
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# Special field "state" must be added for every class
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state = gen.String(validator=gen.Selection('_appy_listStates'),
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show='result')
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state.init('state', None, 'workflow')
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setattr(wrapperClass, 'state', state)
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names = self.config.attributes[wrapperClass.__name__[:-8]]
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wrapperClass.__fields__ = [getattr(wrapperClass, n) for n in names]
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# Post-initialise every Appy type
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for baseClass in klass.wrapperClass.__bases__:
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if baseClass.__name__ == 'AbstractWrapper': continue
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for name, appyType in baseClass.__dict__.iteritems():
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if not isinstance(appyType, gen.Type) or \
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(isinstance(appyType, gen.Ref) and appyType.isBack):
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continue # Back refs are initialised within fw refs
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appyType.init(name, baseClass, appName)
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def installRoles(self):
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'''Installs the application-specific roles if not already done.'''
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roles = list(self.app.__ac_roles__)
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for role in self.config.applicationRoles:
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if role not in roles: roles.append(role)
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self.app.__ac_roles__ = tuple(roles)
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def installDependencies(self):
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'''Zope products are installed in alphabetical order. But here, we need
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ZCTextIndex to be installed before our Appy application. So, we cheat
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and force Zope to install it now.'''
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from OFS.Application import install_product
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import Products
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install_product(self.app, Products.__path__[1], 'ZCTextIndex', [], {})
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def install(self):
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self.logger.info('is being installed...')
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self.installDependencies()
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self.installRoles()
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self.installAppyTypes()
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self.installZopeClasses()
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self.enableUserTracking()
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self.configureSessions()
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self.installBaseObjects()
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self.installCatalog()
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# The following line cleans and rebuilds the catalog entirely.
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#self.app.config.appy().refreshCatalog()
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self.installTool()
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self.installUi()
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# Perform migrations if required
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Migrator(self).run()
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# Update Appy version in the database
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self.app.config.appy().appyVersion = appy.version.short
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# Empty the fake REQUEST object, only used at Zope startup.
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del self.app.config.getProductConfig().fakeRequest.wrappers
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# ------------------------------------------------------------------------------
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