# ------------------------------------------------------------------------------
import os, os.path, sys, re, time, random, types, base64
from appy import Object
import appy.gen
from appy.gen import Search, UiSearch, String, Page
from appy.gen.layout import ColumnLayout
from appy.gen import utils as gutils
from appy.gen.mixins import BaseMixin
from appy.gen.wrappers import AbstractWrapper
from appy.gen.descriptors import ClassDescriptor
from appy.gen.mail import sendMail
from appy.shared import mimeTypes
from appy.shared import utils as sutils
from appy.shared.data import languages
from appy.shared.ldap_connector import LdapConnector
try:
from AccessControl.ZopeSecurityPolicy import _noroles
except ImportError:
_noroles = []
# Errors -----------------------------------------------------------------------
jsMessages = ('no_elem_selected', 'delete_confirm', 'unlink_confirm',
'unlock_confirm', 'warn_leave_form')
# ------------------------------------------------------------------------------
class ToolMixin(BaseMixin):
_appy_meta_type = 'Tool'
xhtmlEncoding = 'text/html;charset=UTF-8'
def getPortalType(self, metaTypeOrAppyClass):
'''Returns the name of the portal_type that is based on
p_metaTypeOrAppyType.'''
appName = self.getProductConfig().PROJECTNAME
res = metaTypeOrAppyClass
if not isinstance(metaTypeOrAppyClass, basestring):
res = gutils.getClassName(metaTypeOrAppyClass, appName)
if res.find('_wrappers') != -1:
elems = res.split('_')
res = '%s%s' % (elems[1], elems[4])
if res in ('User', 'Group', 'Translation'): res = appName + res
return res
def home(self):
'''Returns the content of px ToolWrapper.pxHome.'''
tool = self.appy()
return tool.pxHome({'obj': None, 'tool': tool})
def query(self):
'''Returns the content of px ToolWrapper.pxQuery.'''
tool = self.appy()
return tool.pxQuery({'obj': None, 'tool': tool})
def search(self):
'''Returns the content of px ToolWrapper.pxSearch.'''
tool = self.appy()
return tool.pxSearch({'obj': None, 'tool': tool})
def getHomePage(self):
'''Return the home page when a user hits the app.'''
# If the app defines a method "getHomePage", call it.
tool = self.appy()
try:
url = tool.getHomePage()
except AttributeError:
# Bring Managers to the config, lead others to pxHome.
user = self.getUser()
if user.has_role('Manager'):
url = self.goto(self.absolute_url())
else:
url = self.goto('%s/home' % self.absolute_url())
return url
def getHomeObject(self):
'''The concept of "home object" is the object where the user must "be",
even if he is "nowhere". For example, if the user is on a search
screen, there is no contextual object. In this case, if we have a
home object for him, we will use it as contextual object, and its
portlet menu will nevertheless appear: the user will not have the
feeling of being lost.'''
# If the app defines a method "getHomeObject", call it.
try:
return self.appy().getHomeObject()
except AttributeError:
# For managers, the home object is the config. For others, there is
# no default home object.
if self.getUser().has_role('Manager'): return self.appy()
def getCatalog(self):
'''Returns the catalog object.'''
return self.getParentNode().catalog
def getApp(self):
'''Returns the root Zope object.'''
return self.getPhysicalRoot()
def getSiteUrl(self):
'''Returns the absolute URL of this site.'''
return self.getApp().absolute_url()
def getIncludeUrl(self, name, bg=False):
'''Gets the full URL of an external resource, like an image, a
Javascript or a CSS file, named p_name. If p_bg is True, p_name is
an image that is meant to be used in a "style" attribute for defining
the background image of some XHTML tag.'''
# If no extension is found in p_name, we suppose it is a png image.
if '.' not in name: name += '.png'
url = '%s/ui/%s' % (self.getPhysicalRoot().absolute_url(), name)
if not bg: return url
return 'background-image: url(%s)' % url
def generateDocument(self):
'''Generates the document from field-related info. UID of object that
is the template target is given in the request.'''
rq = self.REQUEST
# Get the object on which a document must be generated.
obj = self.getObject(rq.get('objectUid'), appy=True)
fieldName = rq.get('fieldName')
res = getattr(obj, fieldName)
if isinstance(res, basestring):
# An error has occurred, and p_res contains the error message
obj.say(res)
return self.goto(rq.get('HTTP_REFERER'))
# res contains a FileWrapper instance.
response = rq.RESPONSE
response.setHeader('Content-Type', res.mimeType)
response.setHeader('Content-Disposition',
'inline;filename="%s"' % res.name)
return res.content
def getAppName(self):
'''Returns the name of the application.'''
return self.getProductConfig().PROJECTNAME
def getPath(self, path):
'''Returns the folder or object whose absolute path p_path.'''
res = self.getPhysicalRoot()
if path == '/': return res
path = path[1:]
if '/' not in path: return res._getOb(path) # For performance
for elem in path.split('/'): res = res._getOb(elem)
return res
def showLanguageSelector(self):
'''We must show the language selector if the app config requires it and
it there is more than 2 supported languages. Moreover, on some pages,
switching the language is not allowed.'''
cfg = self.getProductConfig(True)
if not cfg.languageSelector: return
if len(cfg.languages) < 2: return
page = self.REQUEST.get('ACTUAL_URL').split('/')[-1]
return page not in ('edit', 'query', 'search', 'do')
def showForgotPassword(self):
'''We must show link "forgot password?" when the app requires it.'''
return self.getProductConfig(True).activateForgotPassword
def getLanguages(self):
'''Returns the supported languages. First one is the default.'''
return self.getProductConfig(True).languages
def getLanguageName(self, code):
'''Gets the language name (in this language) from a 2-chars language
p_code.'''
return languages.get(code)[2]
def changeLanguage(self):
'''Sets the language cookie with the new desired language code that is
in request["language"].'''
rq = self.REQUEST
rq.RESPONSE.setCookie('_ZopeLg', rq['language'], path='/')
return self.goto(rq['HTTP_REFERER'])
def flipLanguageDirection(self, align, dir):
'''According to language direction p_dir ('ltr' or 'rtl'), this method
turns p_align from 'left' to 'right' (or the inverse) when
required.'''
if dir == 'ltr': return align
if align == 'left': return 'right'
if align == 'right': return 'left'
return align
def getGlobalCssJs(self):
'''Returns the list of CSS and JS files to include in the main template.
The method ensures that appy.css and appy.js come first.'''
names = self.getPhysicalRoot().ui.objectIds('File')
names.remove('appy.js'); names.insert(0, 'appy.js')
names.remove('appyrtl.css'); names.insert(0, 'appyrtl.css')
names.remove('appy.css'); names.insert(0, 'appy.css')
return names
def consumeMessages(self):
'''Returns the list of messages to show to a web page and clean it in
the session.'''
rq = self.REQUEST
res = rq.SESSION.get('messages', '')
if res:
del rq.SESSION['messages']
res = ' '.join([m[1] for m in res])
return res
def getRootClasses(self):
'''Returns the list of root classes for this application.'''
cfg = self.getProductConfig()
return [self.getAppyClass(k) for k in cfg.rootClasses]
def getSearchInfo(self, className, refInfo=None):
'''Returns, as an object:
- the list of searchable fields (some among all indexed fields);
- the number of columns for layouting those fields.'''
fields = []
if refInfo:
# The search is triggered from a Ref field.
refObject, fieldName = self.getRefInfo(refInfo)
refField = refObject.getAppyType(fieldName)
fieldNames = refField.queryFields or ()
nbOfColumns = refField.queryNbCols
else:
# The search is triggered from an app-wide search.
klass = self.getAppyClass(className)
fieldNames = getattr(klass, 'searchFields', None)
if not fieldNames:
# Gather all the indexed fields on this class.
fieldNames = [f.name for f in self.getAllAppyTypes(className) \
if f.indexed]
nbOfColumns = getattr(klass, 'numberOfSearchColumns', 3)
for name in fieldNames:
field = self.getAppyType(name, className=className)
fields.append(field)
return Object(fields=fields, nbOfColumns=nbOfColumns)
queryParamNames = ('className', 'search', 'sortKey', 'sortOrder',
'filterKey', 'filterValue')
def getQueryInfo(self):
'''If we are showing search results, this method encodes in a string all
the params in the request that are required for re-triggering the
search.'''
rq = self.REQUEST
res = ''
if rq.has_key('search'):
res = ';'.join([rq.get(key,'').replace(';','') \
for key in self.queryParamNames])
return res
def getResultMode(self, className):
'''Must we show, on pxQueryResult, instances of p_className as a list or
as a grid?'''
klass = self.getAppyClass(className)
return getattr(klass, 'resultMode', 'list')
def getImportElements(self, className):
'''Returns the list of elements that can be imported from p_path for
p_className.'''
appyClass = self.getAppyClass(className)
importParams = self.getCreateMeans(appyClass)['import']
onElement = importParams.onElement.__get__('')
sortMethod = importParams.sort
if sortMethod: sortMethod = sortMethod.__get__('')
elems = []
importType = self.getAppyType('importPathFor%s' % className)
importPath = importType.getValue(self)
for elem in os.listdir(importPath):
elemFullPath = os.path.join(importPath, elem)
elemInfo = onElement(elemFullPath)
if elemInfo:
elemInfo.insert(0, elemFullPath) # To the result, I add the full
# path of the elem, which will not be shown.
elems.append(elemInfo)
if sortMethod:
elems = sortMethod(elems)
return [importParams.headers, elems]
def showPortlet(self, obj, layoutType):
'''When must the portlet be shown? p_obj and p_layoutType can be None
if we are not browing any objet (ie, we are on the home page).'''
# Not on 'edit' pages.
if layoutType == 'edit': return
res = True
if obj and hasattr(obj, 'showPortlet'):
res = obj.showPortlet()
else:
tool = self.appy()
if hasattr(tool, 'showPortletAt'):
res = tool.showPortletAt(self.REQUEST['ACTUAL_URL'])
return res
def getObject(self, uid, appy=False, brain=False):
'''Allows to retrieve an object from its p_uid.'''
res = self.getPhysicalRoot().catalog(UID=uid)
if not res: return
res = res[0]
if brain: return res
res = res._unrestrictedGetObject()
if not appy: return res
return res.appy()
def getAllowedValue(self):
'''Gets, for the current user, the value of index "Allowed".'''
user = self.getUser()
# Get the user roles
res = user.getRoles()
# Get the user logins
if user.login != 'anon':
for login in user.getLogins():
res.append('user:%s' % login)
return res
def executeQuery(self, className, searchName=None, startNumber=0,
search=None, remember=False, brainsOnly=False,
maxResults=None, noSecurity=False, sortBy=None,
sortOrder='asc', filterKey=None, filterValue=None,
refObject=None, refField=None):
'''Executes a query on instances of a given p_className in the catalog.
If p_searchName is specified, it corresponds to:
1) a search defined on p_className: additional search criteria
will be added to the query, or;
2) "customSearch": in this case, additional search criteria will
also be added to the query, but those criteria come from the
session (in key "searchCriteria") and came from pxSearch.
We will retrieve objects from p_startNumber. If p_search is defined,
it corresponds to a custom Search instance (instead of a predefined
named search like in p_searchName). If both p_searchName and p_search
are given, p_search is ignored.
This method returns a list of objects in the form of an instance of
SomeObjects (see in appy.gen.utils). If p_brainsOnly is True, it
returns a list of brains instead (can be useful for some usages like
knowing the number of objects without needing to get information
about them). If no p_maxResults is specified, the method returns
maximum self.numberOfResultsPerPage. The method returns all objects
if p_maxResults equals string "NO_LIMIT".
If p_noSecurity is True, it gets all the objects, even those that the
currently logged user can't see.
The result is sorted according to the potential sort key defined in
the Search instance (Search.sortBy, together with Search.sortOrder).
But if parameter p_sortBy is given, it defines or overrides the sort.
In this case, p_sortOrder gives the order (*asc*ending or
*desc*ending).
If p_filterKey is given, it represents an additional search parameter
to take into account: the corresponding search value is in
p_filterValue.
If p_refObject and p_refField are given, the query is limited to the
objects that are referenced from p_refObject through p_refField.'''
params = {'ClassName': className}
appyClass = self.getAppyClass(className, wrapper=True)
if not brainsOnly: params['batch'] = True
# Manage additional criteria from a search when relevant
if searchName: search = self.getSearch(className, searchName)
if search:
# Add in params search and sort criteria.
search.updateSearchCriteria(params, appyClass)
# Determine or override sort if specified.
if sortBy:
params['sort_on'] = Search.getIndexName(sortBy, usage='sort')
if sortOrder == 'desc': params['sort_order'] = 'reverse'
else: params['sort_order'] = None
# If defined, add the filter among search parameters.
if filterKey:
filterKey = Search.getIndexName(filterKey)
filterValue = Search.getSearchValue(filterKey,filterValue,appyClass)
params[filterKey] = filterValue
# TODO This value needs to be merged with an existing one if already
# in params, or, in a first step, we should avoid to display the
# corresponding filter widget on the screen.
if refObject:
refField = refObject.getAppyType(refField)
params['UID'] = getattr(refObject, refField.name).data
# Use index "Allowed" if noSecurity is False
if not noSecurity: params['Allowed'] = self.getAllowedValue()
brains = self.getPath("/catalog")(**params)
if brainsOnly:
# Return brains only.
if not maxResults: return brains
else: return brains[:maxResults]
if not maxResults:
if refField: maxResults = refField.maxPerPage
else: maxResults = self.appy().numberOfResultsPerPage
elif maxResults == 'NO_LIMIT': maxResults = None
res = gutils.SomeObjects(brains, maxResults, startNumber,
noSecurity=noSecurity)
res.brainsToObjects()
# In some cases (p_remember=True), we need to keep some information
# about the query results in the current user's session, allowing him
# to navigate within elements without re-triggering the query every
# time a page for an element is consulted.
if remember:
if not searchName:
if not search or (search.name == 'allSearch'):
searchName = className
else:
searchName = search.name
uids = {}
i = -1
for obj in res.objects:
i += 1
uids[startNumber+i] = obj.UID()
self.REQUEST.SESSION['search_%s' % searchName] = uids
return res
def getResultColumnsLayouts(self, className, refInfo):
'''Returns the column layouts for displaying objects of
p_className.'''
if refInfo[0]:
return refInfo[0].getAppyType(refInfo[1]).shownInfo
else:
k = self.getAppyClass(className)
return hasattr(k, 'listColumns') and k.listColumns or ('title',)
def truncateValue(self, value, width=15):
'''Truncates the p_value according to p_width.'''
if isinstance(value, str): value = value.decode('utf-8')
if len(value) > width:
return value[:width].encode('utf-8') + '...'
return value.encode('utf-8')
def truncateText(self, text, width=15):
'''Truncates p_text to max p_width chars. If the text is longer than
p_width, the truncated part is put in a "acronym" html tag.'''
# p_text has to be unicode-encoded for being truncated (else, one char
# may be spread on 2 chars). But this method must return an encoded
# string, else, ZPT crashes. The same remark holds for m_truncateValue
# above.
uText = text # uText will store the unicode version
if isinstance(text, str): uText = text.decode('utf-8')
if len(uText) <= width: return text
return '%s' % \
(text, uText[:width].encode('utf-8') + '...')
def splitList(self, l, sub):
'''Returns a list made of the same elements as p_l, but grouped into
sub-lists of p_sub elements.'''
return sutils.splitList(l, sub)
def quote(self, s):
'''Returns the quoted version of p_s.'''
if not isinstance(s, basestring): s = str(s)
s = s.replace('\r\n', '').replace('\n', '').replace("'", "\\'")
return "'%s'" % s
def getLayoutType(self):
'''Guess the current layout type, according to actual URL.'''
url = self.REQUEST['ACTUAL_URL']
if url.endswith('/view'): return 'view'
if url.endswith('/edit') or url.endswith('/do'): return 'edit'
def getZopeClass(self, name):
'''Returns the Zope class whose name is p_name.'''
exec 'from Products.%s.%s import %s as C'% (self.getAppName(),name,name)
return C
def getAppyClass(self, zopeName, wrapper=False):
'''Gets the Appy class corresponding to the Zope class named p_name.
If p_wrapper is True, it returns the Appy wrapper. Else, it returns
the user-defined class.'''
zopeClass = self.getZopeClass(zopeName)
if wrapper: return zopeClass.wrapperClass
else: return zopeClass.wrapperClass.__bases__[-1]
def getCreateMeans(self, klass):
'''Gets the different ways objects of p_klass can be created (via a web
form, by importing external data, etc). Result is a dict whose keys
are strings (ie "form", "import"...) and whose values are additional
data about the particular mean.'''
res = {}
if not klass.__dict__.has_key('create'):
res['form'] = None
# No additional data for this means, which is the default one.
else:
means = pythonClass.create
if means:
if isinstance(means, basestring): res[means] = None
elif isinstance(means, list) or isinstance(means, tuple):
for mean in means:
if isinstance(mean, basestring):
res[mean] = None
else:
res[mean.id] = mean
else:
res[means.id] = means
return res
def userMaySearch(self, klass):
'''May the user search among instances of root p_klass ?'''
# When editing a form, one should avoid annoying the user with this.
url = self.REQUEST['ACTUAL_URL']
if url.endswith('/edit') or url.endswith('/do'): return
if hasattr(klass, 'maySearch'): return klass.maySearch(self.appy())
return True
def userMayCreate(self, klass):
'''May the logged user create instances of p_klass ? This information
can be defined on p_klass, in static attribute "creators".
1. If this attr holds a list, we consider it to be a list of roles,
and we check that the user has at least one of those roles.
2. If this attr holds a boolean, we consider that the user can create
instances of this class if the boolean is True.
3. If this attr stores a method, we execute the method, and via its
result, we fall again in cases 1 or 2.
If p_klass does not define this attr "creators", we will use a
default list of roles as defined in the config.'''
# Get the value of attr "creators", or a default value if not present.
if hasattr(klass, 'creators'):
creators = klass.creators
else:
creators = self.getProductConfig().appConfig.defaultCreators
# Resolve case (3): if "creators" is a method, execute it.
if callable(creators): creators = creators(self.appy())
# Resolve case (2)
if isinstance(creators, bool) or not creators: return creators
# Resolve case (1): checks whether the user has at least one of the
# roles listed in "creators".
for role in self.getUser().getRoles():
if role in creators:
return True
def onImportObjects(self):
'''This method is called when the user wants to create objects from
external data.'''
rq = self.REQUEST
appyClass = self.getAppyClass(rq.get('className'))
importPaths = rq.get('importPath').split('|')
appFolder = self.getPath('/data')
for importPath in importPaths:
if not importPath: continue
objectId = os.path.basename(importPath)
self.appy().create(appyClass, id=objectId, _data=importPath)
self.say(self.translate('import_done'))
return self.goto(rq['HTTP_REFERER'])
def isAlreadyImported(self, contentType, importPath):
data = self.getPath('/data')
objectId = os.path.basename(importPath)
if hasattr(data.aq_base, objectId):
return True
else:
return False
def isSortable(self, name, className, usage):
'''Is field p_name defined on p_className sortable for p_usage purposes
(p_usage can be "ref" or "search")?'''
if (',' in className) or (name == 'state'): return False
appyType = self.getAppyType(name, className=className)
if appyType: return appyType.isSortable(usage=usage)
def subTitleIsUsed(self, className):
'''Does class named p_className define a method "getSubTitle"?'''
klass = self.getAppyClass(className)
return hasattr(klass, 'getSubTitle')
def _searchValueIsEmpty(self, key):
'''Returns True if request value in key p_key can be considered as
empty.'''
rq = self.REQUEST.form
if key.endswith('*int') or key.endswith('*float'):
# We return True if "from" AND "to" values are empty.
toKey = '%s_to' % key[2:key.find('*')]
return not rq[key].strip() and not rq[toKey].strip()
elif key.endswith('*date'):
# We return True if "from" AND "to" values are empty. A value is
# considered as not empty if at least the year is specified.
toKey = '%s_to_year' % key[2:-5]
return not rq[key] and not rq[toKey]
else:
return not rq[key]
def _getDateTime(self, year, month, day, setMin):
'''Gets a valid DateTime instance from date information coming from the
request as strings in p_year, p_month and p_day. Returns None if
p_year is empty. If p_setMin is True, when some
information is missing (month or day), we will replace it with the
minimum value (=1). Else, we will replace it with the maximum value
(=12, =31).'''
if not year: return None
if not month:
if setMin: month = 1
else: month = 12
if not day:
if setMin: day = 1
else: day = 31
DateTime = self.getProductConfig().DateTime
# Set the hour
if setMin: hour = '00:00'
else: hour = '23:59'
# We loop until we find a valid date. For example, we could loop from
# 2009/02/31 to 2009/02/28.
dateIsWrong = True
while dateIsWrong:
try:
res = DateTime('%s/%s/%s %s' % (year, month, day, hour))
dateIsWrong = False
except:
day = int(day)-1
return res
def _getDefaultSearchCriteria(self):
'''We are about to perform an advanced search on instances of a given
class. Check, on this class, if in field Class.searchAdvanced, some
default criteria (field values, sort filters, etc) exist, and, if
yes, return it.'''
res = {}
rq = self.REQUEST
if 'className' not in rq.form: return res
klass = self.getAppyClass(rq.form['className'])
if not hasattr(klass, 'searchAdvanced'): return res
# In klass.searchAdvanced, we have the Search instance representing
# default advanced search criteria.
wrapperClass = self.getAppyClass(rq.form['className'], wrapper=True)
klass.searchAdvanced.updateSearchCriteria(res, wrapperClass,
advanced=True)
return res
transformMethods = {'uppercase': 'upper', 'lowercase': 'lower',
'capitalize': 'capitalize'}
def storeSearchCriteria(self):
'''Stores the search criteria coming from the request into the
session.'''
rq = self.REQUEST
# Store the search criteria in the session
criteria = self._getDefaultSearchCriteria()
for attrName in rq.form.keys():
if attrName.startswith('w_') and \
not self._searchValueIsEmpty(attrName):
# We have a(n interval of) value(s) that is not empty for a
# given field.
attrValue = rq.form[attrName]
if attrName.find('*') != -1:
attrValue = attrValue.strip()
# The type of the value is encoded after char "*".
attrName, attrType = attrName.split('*')
if attrType == 'bool':
exec 'attrValue = %s' % attrValue
elif attrType in ('int', 'float'):
# Get the "from" value
if not attrValue: attrValue = None
else:
exec 'attrValue = %s(attrValue)' % attrType
# Get the "to" value
toValue = rq.form['%s_to' % attrName[2:]].strip()
if not toValue: toValue = None
else:
exec 'toValue = %s(toValue)' % attrType
attrValue = (attrValue, toValue)
elif attrType == 'date':
prefix = attrName[2:]
# Get the "from" value
year = attrValue
month = rq.form['%s_from_month' % prefix]
day = rq.form['%s_from_day' % prefix]
fromDate = self._getDateTime(year, month, day, True)
# Get the "to" value"
year = rq.form['%s_to_year' % prefix]
month = rq.form['%s_to_month' % prefix]
day = rq.form['%s_to_day' % prefix]
toDate = self._getDateTime(year, month, day, False)
attrValue = (fromDate, toDate)
elif attrType.startswith('string'):
# In the case of a string, it could be necessary to
# apply some text transform.
if len(attrType) > 6:
transform = attrType.split('-')[1]
if (transform != 'none') and attrValue:
exec 'attrValue = attrValue.%s()' % \
self.transformMethods[transform]
if isinstance(attrValue, list):
# It is a list of values. Check if we have an operator for
# the field, to see if we make an "and" or "or" for all
# those values. "or" will be the default.
operKey = 'o_%s' % attrName[2:]
oper = ' %s ' % rq.form.get(operKey, 'or').upper()
attrValue = oper.join(attrValue)
criteria[attrName[2:]] = attrValue
# Complete criteria with Ref info if the search is restricted to
# referenced objects of a Ref field.
refInfo = rq.get('ref', None)
if refInfo: criteria['_ref'] = refInfo
rq.SESSION['searchCriteria'] = criteria
def onSearchObjects(self):
'''This method is called when the user triggers a search from
pxSearch.'''
rq = self.REQUEST
self.storeSearchCriteria()
# Go to the screen that displays search results
backUrl = '%s/query?className=%s&&search=customSearch' % \
(self.absolute_url(), rq['className'])
return self.goto(backUrl)
def getJavascriptMessages(self):
'''Returns the translated version of messages that must be shown in
Javascript popups.'''
res = ''
for msg in jsMessages:
res += 'var %s = "%s";\n' % (msg, self.translate(msg))
return res
def getColumnsSpecifiers(self, className, columnLayouts, dir):
'''Extracts and returns, from a list of p_columnLayouts, info required
for displaying columns of field values for instances of p_className,
either in a result screen or for a Ref field.'''
res = []
for info in columnLayouts:
fieldName, width, align = ColumnLayout(info).get()
align = self.flipLanguageDirection(align, dir)
field = self.getAppyType(fieldName, className)
if not field:
self.log('Field "%s", used in a column specifier, was not ' \
'found.' % fieldName, type='warning')
else:
res.append(Object(field=field, width=width, align=align))
return res
def getRefInfo(self, refInfo=None):
'''When a search is restricted to objects referenced through a Ref
field, this method returns information about this reference: the
source class and the Ref field. If p_refInfo is not given, we search
it among search criteria in the session.'''
if not refInfo and (self.REQUEST.get('search', None) == 'customSearch'):
criteria = self.REQUEST.SESSION.get('searchCriteria', None)
if criteria and criteria.has_key('_ref'): refInfo = criteria['_ref']
if not refInfo: return None, None
objectUid, fieldName = refInfo.split(':')
obj = self.getObject(objectUid)
return obj, fieldName
def getGroupedSearches(self, klass):
'''Returns an object with 2 attributes:
* "searches" stores the searches that are defined for p_klass;
* "default" stores the search defined as the default one.
Every item representing a search is a dict containing info about a
search or about a group of searches.
'''
res = []
default = None # Also retrieve the default one here.
groups = {} # The already encountered groups
page = Page('searches') # A dummy page required by class UiGroup
# Get the searches statically defined on the class
className = self.getPortalType(klass)
searches = ClassDescriptor.getSearches(klass, tool=self.appy())
# Get the dynamically computed searches
if hasattr(klass, 'getDynamicSearches'):
searches += klass.getDynamicSearches(self.appy())
for search in searches:
# Create the search descriptor
uiSearch = UiSearch(search, className, self)
if not search.group:
# Insert the search at the highest level, not in any group.
res.append(uiSearch)
else:
uiGroup = search.group.insertInto(res, groups, page, className,
content='searches')
uiGroup.addElement(uiSearch)
# Is this search the default search?
if search.default: default = uiSearch
return Object(searches=res, default=default)
def getSearch(self, className, name, ui=False):
'''Gets the Search instance (or a UiSearch instance if p_ui is True)
corresponding to the search named p_name, on class p_className.'''
if name == 'customSearch':
# It is a custom search whose parameters are in the session.
fields = self.REQUEST.SESSION['searchCriteria']
res = Search('customSearch', **fields)
elif name:
appyClass = self.getAppyClass(className)
# Search among static searches
res = ClassDescriptor.getSearch(appyClass, name)
if not res and hasattr(appyClass, 'getDynamicSearches'):
# Search among dynamic searches
for search in appyClass.getDynamicSearches(self.appy()):
if search.name == name:
res = search
break
else:
# It is the search for every instance of p_className
res = Search('allSearch')
# Return a UiSearch if required.
if ui: res = UiSearch(res, className, self)
return res
def advancedSearchEnabledFor(self, klass):
'''Is advanced search visible for p_klass ?'''
# By default, advanced search is enabled.
if not hasattr(klass, 'searchAdvanced'): return True
# Evaluate attribute "show" on this Search instance representing the
# advanced search.
return klass.searchAdvanced.isShowable(klass, self.appy())
def getQueryUrl(self, contentType, searchName, startNumber=None):
'''This method creates the URL that allows to perform a (non-Ajax)
request for getting queried objects from a search named p_searchName
on p_contentType.'''
baseUrl = self.absolute_url()
baseParams = 'className=%s' % contentType
rq = self.REQUEST
if rq.get('ref'): baseParams += '&ref=%s' % rq.get('ref')
# Manage start number
if startNumber != None:
baseParams += '&startNumber=%s' % startNumber
elif rq.has_key('startNumber'):
baseParams += '&startNumber=%s' % rq['startNumber']
# Manage search name
if searchName: baseParams += '&search=%s' % searchName
return '%s/query?%s' % (baseUrl, baseParams)
def computeStartNumberFrom(self, currentNumber, totalNumber, batchSize):
'''Returns the number (start at 0) of the first element in a list
containing p_currentNumber (starts at 0) whose total number is
p_totalNumber and whose batch size is p_batchSize.'''
startNumber = 0
res = startNumber
while (startNumber < totalNumber):
if (currentNumber < startNumber + batchSize):
return startNumber
else:
startNumber += batchSize
return startNumber
def getNavigationInfo(self):
'''Extracts navigation information from request/nav and returns an
object with the info that a page can use for displaying object
navigation.'''
res = Object()
rq = self.REQUEST
t, d1, d2, currentNumber, totalNumber = rq.get('nav').split('.')
res.currentNumber = int(currentNumber)
res.totalNumber = int(totalNumber)
# Compute the label of the search, or ref field
if t == 'search':
searchName = d2
if not searchName:
# We search all objects of a given type.
label = '%s_plural' % d1.split(':')[0]
elif searchName == 'customSearch':
# This is an advanced, custom search.
label = 'search_results'
else:
# This is a named, predefined search.
label = '%s_search_%s' % (d1.split(':')[0], searchName)
res.backText = self.translate(label)
# If it is a dynamic search this label does not exist.
if ('_' in res.backText): res.backText = ''
else:
fieldName, pageName = d2.split(':')
sourceObj = self.getObject(d1)
label = '%s_%s' % (sourceObj.meta_type, fieldName)
res.backText = '%s - %s' % (sourceObj.Title(),self.translate(label))
newNav = '%s.%s.%s.%%d.%s' % (t, d1, d2, totalNumber)
# Among, first, previous, next and last, which one do I need?
previousNeeded = False # Previous ?
previousIndex = res.currentNumber - 2
if (previousIndex > -1) and (res.totalNumber > previousIndex):
previousNeeded = True
nextNeeded = False # Next ?
nextIndex = res.currentNumber
if nextIndex < res.totalNumber: nextNeeded = True
firstNeeded = False # First ?
firstIndex = 0
if previousIndex > 0: firstNeeded = True
lastNeeded = False # Last ?
lastIndex = res.totalNumber - 1
if (nextIndex < lastIndex): lastNeeded = True
# Get the list of available UIDs surrounding the current object
if t == 'ref': # Manage navigation from a reference
# In the case of a reference, we retrieve ALL surrounding objects.
masterObj = self.getObject(d1)
batchSize = masterObj.getAppyType(fieldName).maxPerPage
uids = getattr(masterObj, fieldName)
# Display the reference widget at the page where the current object
# lies.
startNumberKey = '%s%s_startNumber' % (masterObj.UID(), fieldName)
startNumber = self.computeStartNumberFrom(res.currentNumber-1,
res.totalNumber, batchSize)
res.sourceUrl = masterObj.getUrl(**{startNumberKey:startNumber,
'page':pageName, 'nav':''})
else: # Manage navigation from a search
contentType = d1
searchName = keySuffix = d2
batchSize = self.appy().numberOfResultsPerPage
if not searchName: keySuffix = contentType
s = rq.SESSION
searchKey = 'search_%s' % keySuffix
if s.has_key(searchKey): uids = s[searchKey]
else: uids = {}
# In the case of a search, we retrieve only a part of all
# surrounding objects, those that are stored in the session.
if (previousNeeded and not uids.has_key(previousIndex)) or \
(nextNeeded and not uids.has_key(nextIndex)):
# I do not have this UID in session. I will need to
# retrigger the query by querying all objects surrounding
# this one.
newStartNumber = (res.currentNumber-1) - (batchSize / 2)
if newStartNumber < 0: newStartNumber = 0
self.executeQuery(contentType, searchName=searchName,
startNumber=newStartNumber, remember=True)
uids = s[searchKey]
# For the moment, for first and last, we get them only if we have
# them in session.
if not uids.has_key(0): firstNeeded = False
if not uids.has_key(lastIndex): lastNeeded = False
# Compute URL of source object
startNumber = self.computeStartNumberFrom(res.currentNumber-1,
res.totalNumber, batchSize)
res.sourceUrl = self.getQueryUrl(contentType, searchName,
startNumber=startNumber)
# Compute URLs
for urlType in ('previous', 'next', 'first', 'last'):
exec 'needIt = %sNeeded' % urlType
urlKey = '%sUrl' % urlType
setattr(res, urlKey, None)
if needIt:
exec 'index = %sIndex' % urlType
uid = None
try:
uid = uids[index]
# uids can be a list (ref) or a dict (search)
except KeyError: pass
except IndexError: pass
if uid:
brain = self.getObject(uid, brain=True)
if brain:
sibling = brain.getObject()
setattr(res, urlKey, sibling.getUrl(\
nav=newNav % (index + 1),
page=rq.get('page', 'main')))
return res
def getGroupedSearchFields(self, searchInfo):
'''This method transforms p_searchInfo.fields, which is a "flat"
list of fields, into a list of lists, where every sub-list having
length p_searchInfo.nbOfColumns. For every field, scolspan
(=colspan "for search") is taken into account.'''
res = []
row = []
rowLength = 0
for field in searchInfo.fields:
# Can I insert this field in the current row?
remaining = searchInfo.nbOfColumns - rowLength
if field.scolspan <= remaining:
# Yes.
row.append(field)
rowLength += field.scolspan
else:
# We must put the field on a new line. Complete the current one
# if not complete.
while rowLength < searchInfo.nbOfColumns:
row.append(None)
rowLength += 1
res.append(row)
row = [field]
rowLength = field.scolspan
# Complete the last unfinished line if required.
if row:
while rowLength < searchInfo.nbOfColumns:
row.append(None)
rowLength += 1
res.append(row)
return res
# --------------------------------------------------------------------------
# Authentication-related methods
# --------------------------------------------------------------------------
def identifyUser(self, alsoSpecial=False):
'''To identify a user means: get its login and password. There are
several places to look for this information: http authentication,
cookie of credentials coming from the web form.
If no user could be identified, and p_alsoSpecial is True, we will
nevertheless identify a "special user": "system", representing the
system itself (running at startup or in batch mode) or "anon",
representing an anonymous user.'''
tool = self.appy()
req = tool.request
login = password = None
# a. Identify the user from http basic authentication.
if getattr(req, '_auth', None):
# HTTP basic authentication credentials are present (used when
# connecting to the ZMI). Decode it.
creds = req._auth
if creds.lower().startswith('basic '):
try:
creds = creds.split(' ')[-1]
login, password = base64.decodestring(creds).split(':', 1)
except Exception, e:
pass
# b. Identify the user from the authentication cookie.
if not login:
login, password = gutils.readCookie(req)
# c. Identify the user from the authentication form.
if not login:
login = req.get('__ac_name', None)
password = req.get('__ac_password', None)
# Stop identification here if we don't need to return a special user
if not alsoSpecial: return login, password
# d. All the identification methods failed. So identify the user as
# "anon" or "system".
if not login:
# If we have a real request object, it is the anonymous user.
login = (req.__class__.__name__ == 'Object') and 'system' or 'anon'
return login, password
def getLdapUser(self, login, password):
'''Returns a local User instance corresponding to a LDAP user if p_login
and p_password correspong to a valid LDAP user.'''
# Check if LDAP is configured.
cfg = self.getProductConfig(True).ldap
if not cfg: return
# Get a connector to the LDAP server and connect to the LDAP server.
serverUri = cfg.getServerUri()
connector = LdapConnector(serverUri, tool=self)
success, msg = connector.connect(cfg.adminLogin, cfg.adminPassword)
if not success: return
# Check if the user corresponding to p_login exists in the LDAP.
filter = connector.getFilter(cfg.getUserFilterValues(login))
params = cfg.getUserAttributes()
ldapData = connector.search(cfg.baseDn, cfg.scope, filter, params)
if not ldapData: return
# The user exists. Try to connect to the LDAP with this user in order
# to validate its password.
userConnector = LdapConnector(serverUri, tool=self)
success, msg = userConnector.connect(ldapData[0][0], password)
if not success: return
# The password is correct. We can create/update our local user
# corresponding to this LDAP user.
userParams = cfg.getUserParams(ldapData[0][1])
tool = self.appy()
user = tool.search1('User', noSecurity=True, login=login)
if user:
# Update the user with fresh info about him from the LDAP
for name, value in userParams.iteritems():
setattr(user, name, value)
# Update user password
user.setPassword(password, log=False)
user.reindex()
else:
# Create the user
user = tool.create('users', noSecurity=True, login=login,
password1=password, source='ldap', **userParams)
return user
def getUser(self, authentify=False, source='zodb'):
'''Gets the current user. If p_authentify is True, in addition to
finding the logged user and returning it (=identification), we check
if found credentials are valid (=authentification).
If p_authentify is True and p_source is "zodb", authentication is
performed locally. Else (p_source is "ldap"), authentication is
performed on a LDAP (if a LDAP configuration is found). If p_source
is "any", authentication is performed on the local User object, be it
really local or a copy of a LDAP user.'''
tool = self.appy()
req = tool.request
# Try first to return the user that can be cached on the request. In
# this case, we suppose authentication has previously been done, and we
# just return the cached user.
if hasattr(req, 'user'): return req.user
# Identify the user (=find its login and password). If we don't need
# to authentify the user, we ask to identify a user or, if impossible,
# a special user.
login, password = self.identifyUser(alsoSpecial=not authentify)
# Stop here if no user was found and authentication was required.
if authentify and not login: return
# Now, get the User instance.
if source == 'zodb':
# Get the User object, but only if it is a true local user.
user = tool.search1('User', noSecurity=True, login=login)
if user and (user.source != 'zodb'): user = None # Not a local one.
elif source == 'ldap':
user = self.getLdapUser(login, password)
elif source == 'any':
# Get the user object, be it really local or a copy of a LDAP user.
user = tool.search1('User', noSecurity=True, login=login)
if not user: return
# Authentify the user if required.
if authentify:
if not user.checkPassword(password):
# Disable the authentication cookie.
req.RESPONSE.expireCookie('_appy_', path='/')
return
# Create an authentication cookie for this user.
gutils.writeCookie(login, password, req)
# Cache the user and some precomputed values, for performance.
req.user = user
req.userRoles = user.getRoles()
req.userLogins = user.getLogins()
req.zopeUser = user.getZopeUser()
return user
def performLogin(self):
'''Logs the user in.'''
rq = self.REQUEST
jsEnabled = rq.get('js_enabled', False) in ('1', 1)
cookiesEnabled = rq.get('cookies_enabled', False) in ('1', 1)
urlBack = rq['HTTP_REFERER']
if jsEnabled and not cookiesEnabled:
msg = self.translate('enable_cookies')
return self.goto(urlBack, msg)
# Authenticate the user.
login = rq.get('__ac_name', None)
if self.getUser(authentify=True) or \
self.getUser(authentify=True, source='ldap'):
msg = self.translate('login_ok')
logMsg = 'User "%s" logged in.' % login
else:
msg = self.translate('login_ko')
logMsg = 'Authentication failed with login "%s".' % login
self.log(logMsg)
return self.goto(self.getApp().absolute_url(), msg)
def performLogout(self):
'''Logs out the current user when he clicks on "disconnect".'''
rq = self.REQUEST
userId = self.getUser().login
# Perform the logout in acl_users
rq.RESPONSE.expireCookie('_appy_', path='/')
# Invalidate the user session.
try:
sdm = self.session_data_manager
except AttributeError, ae:
# When ran in test mode, session_data_manager is not there.
sdm = None
if sdm:
session = sdm.getSessionData(create=0)
if session is not None:
session.invalidate()
self.log('User "%s" has been logged out.' % userId)
# Remove user from variable "loggedUsers"
if self.loggedUsers.has_key(userId): del self.loggedUsers[userId]
return self.goto(self.getApp().absolute_url())
# This dict stores, for every logged user, the date/time of its last access
loggedUsers = {}
forgetAccessExtensions = ('.jpg', '.gif', '.png', '.js', '.css')
def rememberAccess(self, id, user):
'''Every time there is a hit on the server, this method is called in
order to update global dict loggedUsers (see above).'''
if not id: return
if os.path.splitext(id)[-1].lower() in self.forgetAccessExtensions:
return
self.loggedUsers[user.login] = time.time()
# "Touch" the SESSION object. Else, expiration won't occur.
session = self.REQUEST.SESSION
def validate(self, request, auth='', roles=_noroles):
'''This method performs authentication and authorization. It is used as
a replacement for Zope's AccessControl.User.BasicUserFolder.validate,
that allows to manage cookie-based authentication.'''
v = request['PUBLISHED'] # The published object
tool = self.getParentNode().config
# v is the object (value) we're validating access to
# n is the name used to access the object
# a is the object the object was accessed through
# c is the physical container of the object
a, c, n, v = self._getobcontext(v, request)
# Identify and authentify the user
user = tool.getUser(authentify=True, source='any')
if not user:
# Login and/or password incorrect. Try to authorize and return the
# anonymous user.
if self.authorize(self._nobody, a, c, n, v, roles):
return self._nobody.__of__(self)
else:
return
else:
# We found a user and his password was correct. Try to authorize him
# against the published object. By the way, remember its last access
# to this system.
tool.rememberAccess(a.getId(), user)
user = user.getZopeUser()
if self.authorize(user, a, c, n, v, roles):
return user.__of__(self)
# That didn't work. Try to authorize the anonymous user.
elif self.authorize(self._nobody, a, c, n, v, roles):
return self._nobody.__of__(self)
else:
return
# Patch BasicUserFolder with our version of m_validate above.
from AccessControl.User import BasicUserFolder
BasicUserFolder.validate = validate
def getUserLine(self):
'''Returns a info about the currently logged user as a 2-tuple: first
elem is the one-line user info as shown on every page; second line is
the URL to edit user info.'''
user = self.getUser()
info = [user.title]
showable = [r for r in user.getRoles() if r != 'Authenticated']
if showable:
info.append(', '.join([self.translate('role_%s' % r) \
for r in showable]))
# Edit URL for the user.
url = None
if user.o.mayEdit():
url = user.o.getUrl(mode='edit', page='main', nav='')
return (' | '.join(info), url)
def getUserName(self, login=None, normalized=False):
'''Gets the user name corresponding to p_login (or the currently logged
user if None), or the p_login itself if the user does not exist
anymore. If p_normalized is True, special chars in the first and last
names are normalized.'''
tool = self.appy()
if not login: login = tool.user.login
# Manage the special case of an anonymous user.
if login == 'anon':
name = self.translate('anonymous')
if normalized: name = sutils.normalizeString(name)
return name
# Manage the case of any other user.
user = tool.search1('User', noSecurity=True, login=login)
if not user: return login
firstName = user.firstName
name = user.name
res = ''
if firstName:
if normalized: firstName = sutils.normalizeString(firstName)
res += firstName
if name:
if normalized: name = sutils.normalizeString(name)
if res: res += ' ' + name
else: res = name
if not res: res = login
return res
def tempFile(self):
'''A temp file has been created in a temp folder. This method returns
this file to the browser.'''
rq = self.REQUEST
baseFolder = os.path.join(sutils.getOsTempFolder(), self.getAppName())
baseFolder = os.path.join(baseFolder, rq.SESSION.id)
fileName = os.path.join(baseFolder, rq.get('name', ''))
if os.path.exists(fileName):
f = file(fileName)
content = f.read()
f.close()
# Remove the temp file
os.remove(fileName)
return content
return 'File does not exist'
def getResultPodFields(self, contentType):
'''Finds, among fields defined on p_contentType, which ones are Pod
fields that need to be shown on a page displaying query results.'''
# Skip this if we are searching multiple content types.
if ',' in contentType: return ()
return [f.__dict__ for f in self.getAllAppyTypes(contentType) \
if (f.type == 'Pod') and (f.show == 'result')]
def formatDate(self, aDate, withHour=True):
'''Returns aDate formatted as specified by tool.dateFormat.
If p_withHour is True, hour is appended, with a format specified
in tool.hourFormat.'''
tool = self.appy()
res = aDate.strftime(tool.dateFormat)
if withHour: res += ' (%s)' % aDate.strftime(tool.hourFormat)
return res
def generateUid(self, className):
'''Generates a UID for an instance of p_className.'''
name = className.split('_')[-1]
randomNumber = str(random.random()).split('.')[1]
timestamp = ('%f' % time.time()).replace('.', '')
return '%s%s%s' % (name, timestamp, randomNumber)
def manageError(self, error):
'''Manages an error.'''
tb = sys.exc_info()
if error.type.__name__ == 'Unauthorized':
siteUrl = self.getSiteUrl()
htmlMessage = '
' \
'You are not allowed to access this page.' % \
(siteUrl, siteUrl)
userId = self.appy().user.login
textMessage = 'Unauthorized for %s @%s.' % \
(userId, self.REQUEST.get('PATH_INFO'))
else:
from zExceptions.ExceptionFormatter import format_exception
htmlMessage = format_exception(tb[0], tb[1], tb[2], as_html=1)
htmlMessage = '\n'.join(htmlMessage)
textMessage = format_exception(tb[0], tb[1], tb[2], as_html=0)
textMessage = ''.join(textMessage).strip()
self.log(textMessage, type='error')
return '%s
' % htmlMessage
def getMainPages(self):
'''Returns the main pages.'''
if hasattr(self.o.aq_base, 'pages') and self.o.pages:
return [self.getObject(uid) for uid in self.o.pages ]
return ()
def askPasswordReinit(self):
'''A user (anonymmous) does not remember its password. Here we will
send him a mail containing a link that will trigger password
re-initialisation.'''
login = self.REQUEST.get('login').strip()
appyTool = self.appy()
user = appyTool.search1('User', login=login, noSecurity=True)
msg = self.translate('reinit_mail_sent')
backUrl = self.REQUEST['HTTP_REFERER']
if not user:
# Return the message nevertheless. This way, malicious users can't
# deduce information about existing users.
return self.goto(backUrl, msg)
# If login is an email, use it. Else, use user.email instead.
email = user.login
if not String.EMAIL.match(email):
email = user.email
if not email:
# Impossible to re-initialise the password.
return self.goto(backUrl, msg)
# Create a temporary file whose name is the user login and whose
# content is a generated token.
f = file(os.path.join(sutils.getOsTempFolder(), login), 'w')
token = String().generatePassword()
f.write(token)
f.close()
# Send an email
initUrl = '%s/doPasswordReinit?login=%s&token=%s' % \
(self.absolute_url(), login, token)
subject = self.translate('reinit_password')
map = {'url':initUrl, 'siteUrl':self.getSiteUrl()}
body= self.translate('reinit_password_body', mapping=map, format='text')
sendMail(appyTool, email, subject, body)
return self.goto(backUrl, msg)
def doPasswordReinit(self):
'''Performs the password re-initialisation.'''
rq = self.REQUEST
login = rq['login']
token = rq['token']
# Check if such token exists in temp folder
res = None
siteUrl = self.getSiteUrl()
tokenFile = os.path.join(sutils.getOsTempFolder(), login)
if os.path.exists(tokenFile):
f = file(tokenFile)
storedToken = f.read()
f.close()
if storedToken == token:
# Generate a new password for this user
appyTool = self.appy()
user = appyTool.search1('User', login=login, noSecurity=True)
newPassword = user.setPassword()
# Send the new password by email
email = login
if not String.EMAIL.match(email):
email = user.email
subject = self.translate('new_password')
map = {'password': newPassword, 'siteUrl': siteUrl}
body = self.translate('new_password_body', mapping=map,
format='text')
sendMail(appyTool, email, subject, body)
os.remove(tokenFile)
res = self.goto(siteUrl, self.translate('new_password_sent'))
if not res:
res = self.goto(siteUrl, self.translate('wrong_password_reinit'))
return res
def getSearchValues(self, name, className):
'''Gets the possible values for selecting a value for searching field
p_name belonging to class p_className.'''
klass = self.getAppyClass(className, wrapper=True)
method = getattr(klass, name).searchSelect
tool = self.appy()
if method.__class__.__name__ == 'function':
objects = method(tool)
else:
objects = method.__get__(tool)(tool)
return [(o.uid, o) for o in objects]
def getGoogleAnalyticsCode(self):
'''If the config defined a Google Analytics ID, this method returns the
Javascript code to be included in every page, allowing Google
Analytics to work.'''
# Disable Google Analytics when we are in debug mode.
if self.isDebug(): return
# Disable Google Analytics if no ID is found in the config.
gaId = self.getProductConfig(True).googleAnalyticsId
if not gaId: return
# Google Analytics must be enabled: return the chunk of Javascript
# code specified by Google.
code = "var _gaq = _gaq || [];\n" \
"_gaq.push(['_setAccount', '%s']);\n" \
"_gaq.push(['_trackPageview']);\n" \
"(function() {\n" \
" var ga = document.createElement('script'); " \
"ga.type = 'text/javascript'; ga.async = true;\n" \
" ga.src = ('https:' == document.location.protocol ? " \
"'https://ssl' : 'http://www') + " \
"'.google-analytics.com/ga.js';\n" \
" var s = document.getElementsByTagName('script')[0]; " \
"s.parentNode.insertBefore(ga, s);\n" \
"})();\n" % gaId
return code
# ------------------------------------------------------------------------------