696 lines
23 KiB
Python
696 lines
23 KiB
Python
import cherrypy
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from datetime import datetime
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from Expose import expose
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from Validate import validate, Valid_string, Validation_error, Valid_bool
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from Database import Valid_id, Valid_revision
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from Users import grab_user_id
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from Expire import strongly_expire
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from Html_nuker import Html_nuker
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from model.Notebook import Notebook
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from model.Note import Note
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from view.Main_page import Main_page
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from view.Json import Json
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from view.Html_file import Html_file
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class Access_error( Exception ):
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def __init__( self, message = None ):
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if message is None:
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message = u"Sorry, you don't have access to do that."
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Exception.__init__( self, message )
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self.__message = message
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def to_dict( self ):
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return dict(
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error = self.__message
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)
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class Notebooks( object ):
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"""
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Controller for dealing with notebooks and their notes, corresponding to the "/notebooks" URL.
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"""
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def __init__( self, database, users ):
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"""
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Create a new Notebooks object.
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@type database: controller.Database
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@param database: database that notebooks are stored in
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@type users: controller.Users
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@param users: controller for all users, used here for updating storage utilization
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@rtype: Notebooks
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@return: newly constructed Notebooks
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"""
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self.__database = database
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self.__users = users
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@expose( view = Main_page )
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@grab_user_id
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@validate(
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notebook_id = Valid_id(),
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note_id = Valid_id(),
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parent_id = Valid_id(),
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revision = Valid_revision(),
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user_id = Valid_id( none_okay = True ),
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)
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def default( self, notebook_id, note_id = None, parent_id = None, revision = None, user_id = None ):
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"""
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Provide the information necessary to display the page for a particular notebook. If a
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particular note id is given without a revision, then the most recent version of that note is
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displayed.
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@type notebook_id: unicode
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@param notebook_id: id of the notebook to display
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@type note_id: unicode or NoneType
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@param note_id: id of single note in this notebook to display (optional)
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@type parent_id: unicode or NoneType
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@param parent_id: id of parent notebook to this notebook (optional)
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@type revision: unicode or NoneType
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@param revision: revision timestamp of the provided note (optional)
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@rtype: unicode
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@return: rendered HTML page
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"""
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result = self.__users.current( user_id )
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result.update( self.contents( notebook_id, note_id, revision, user_id ) )
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result[ "parent_id" ] = parent_id
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if revision:
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result[ "note_read_write" ] = False
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return result
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def contents( self, notebook_id, note_id = None, revision = None, user_id = None ):
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"""
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Return the startup notes for the given notebook. Optionally include a single requested note as
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well.
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@type notebook_id: unicode
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@param notebook_id: id of notebook to return
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@type note_id: unicode or NoneType
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@param note_id: id of single note in this notebook to return (optional)
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@type revision: unicode or NoneType
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@param revision: revision timestamp of the provided note (optional)
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@type user_id: unicode or NoneType
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@param user_id: id of current logged-in user (if any)
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@rtype: dict
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@return: {
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'notebook': notebook,
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'startup_notes': notelist,
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'total_notes_count': notecount,
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'note': note or None,
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}
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@raise Access_error: the current user doesn't have access to the given notebook or note
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@raise Validation_error: one of the arguments is invalid
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"""
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if not self.__users.check_access( user_id, notebook_id ):
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raise Access_error()
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notebook = self.__database.load( Notebook, notebook_id )
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if notebook is None:
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raise Access_error()
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if not self.__users.check_access( user_id, notebook_id, read_write = True ):
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notebook.read_write = False
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if note_id:
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note = self.__database.load( Note, note_id, revision )
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if note and note.notebook_id != notebook_id:
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if note.notebook_id == notebook.trash_id:
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note = None
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else:
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raise Access_error()
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else:
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note = None
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startup_notes = self.__database.select_many( Note, notebook.sql_load_startup_notes() )
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total_notes_count = self.__database.select_one( int, notebook.sql_count_notes() )
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return dict(
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notebook = notebook,
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startup_notes = startup_notes,
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total_notes_count = total_notes_count,
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note = note,
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)
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@expose( view = Json )
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@strongly_expire
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@grab_user_id
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@validate(
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notebook_id = Valid_id(),
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note_id = Valid_id(),
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revision = Valid_revision(),
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user_id = Valid_id( none_okay = True ),
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)
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def load_note( self, notebook_id, note_id, revision = None, user_id = None ):
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"""
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Return the information on a particular note by its id.
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@type notebook_id: unicode
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@param notebook_id: id of notebook the note is in
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@type note_id: unicode
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@param note_id: id of note to return
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@type revision: unicode or NoneType
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@param revision: revision timestamp of the note (optional)
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@type user_id: unicode or NoneType
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@param user_id: id of current logged-in user (if any), determined by @grab_user_id
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@rtype: json dict
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@return: { 'note': notedict or None }
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@raise Access_error: the current user doesn't have access to the given notebook or note
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@raise Validation_error: one of the arguments is invalid
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"""
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if not self.__users.check_access( user_id, notebook_id ):
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raise Access_error()
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note = self.__database.load( Note, note_id, revision )
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# if the note has no notebook, it has been deleted "forever"
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if note and note.notebook_id is None:
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return dict(
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note = None,
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)
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if note and note.notebook_id != notebook_id:
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notebook = self.__database.load( Notebook, notebook_id )
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if notebook and note.notebook_id == notebook.trash_id:
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return dict(
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note = None,
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note_id_in_trash = note.object_id,
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)
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raise Access_error()
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return dict(
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note = note,
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)
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@expose( view = Json )
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@strongly_expire
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@grab_user_id
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@validate(
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notebook_id = Valid_id(),
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note_title = Valid_string( min = 1, max = 500 ),
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user_id = Valid_id( none_okay = True ),
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)
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def load_note_by_title( self, notebook_id, note_title, user_id ):
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"""
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Return the information on a particular note by its title.
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@type notebook_id: unicode
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@param notebook_id: id of notebook the note is in
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@type note_title: unicode
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@param note_title: title of the note to return
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@type user_id: unicode or NoneType
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@param user_id: id of current logged-in user (if any), determined by @grab_user_id
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@rtype: json dict
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@return: { 'note': notedict or None }
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@raise Access_error: the current user doesn't have access to the given notebook
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@raise Validation_error: one of the arguments is invalid
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"""
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if not self.__users.check_access( user_id, notebook_id ):
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raise Access_error()
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notebook = self.__database.load( Notebook, notebook_id )
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if notebook is None:
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note = None
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else:
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note = self.__database.select_one( Note, notebook.sql_load_note_by_title( note_title ) )
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return dict(
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note = note,
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)
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@expose( view = Json )
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@strongly_expire
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@grab_user_id
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@validate(
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notebook_id = Valid_id(),
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note_title = Valid_string( min = 1, max = 500 ),
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user_id = Valid_id( none_okay = True ),
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)
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def lookup_note_id( self, notebook_id, note_title, user_id ):
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"""
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Return a note's id by looking up its title.
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@type notebook_id: unicode
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@param notebook_id: id of notebook the note is in
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@type note_title: unicode
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@param note_title: title of the note id to return
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@type user_id: unicode or NoneType
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@param user_id: id of current logged-in user (if any), determined by @grab_user_id
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@rtype: json dict
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@return: { 'note_id': noteid or None }
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@raise Access_error: the current user doesn't have access to the given notebook
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@raise Validation_error: one of the arguments is invalid
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"""
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if not self.__users.check_access( user_id, notebook_id ):
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raise Access_error()
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notebook = self.__database.load( Notebook, notebook_id )
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if notebook is None:
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note = None
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else:
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note = self.__database.select_one( Note, notebook.sql_load_note_by_title( note_title ) )
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return dict(
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note_id = note and note.object_id or None,
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)
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@expose( view = Json )
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@strongly_expire
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@grab_user_id
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@validate(
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notebook_id = Valid_id(),
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note_id = Valid_id(),
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user_id = Valid_id( none_okay = True ),
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)
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def load_note_revisions( self, notebook_id, note_id, user_id = None ):
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"""
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Return the full list of revision timestamps for this note in chronological order.
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@type notebook_id: unicode
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@param notebook_id: id of notebook the note is in
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@type note_id: unicode
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@param note_id: id of note in question
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@type user_id: unicode or NoneType
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@param user_id: id of current logged-in user (if any), determined by @grab_user_id
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@rtype: json dict
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@return: { 'revisions': revisionslist or None }
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@raise Access_error: the current user doesn't have access to the given notebook or note
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@raise Validation_error: one of the arguments is invalid
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"""
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if not self.__users.check_access( user_id, notebook_id ):
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raise Access_error()
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note = self.__database.load( Note, note_id )
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if note:
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if note and note.notebook_id is None:
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return dict(
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revisions = None,
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)
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if note.notebook_id != notebook_id:
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notebook = self.__database.load( Notebook, notebook_id )
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if notebook and note.notebook_id == notebook.trash_id:
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return dict(
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revisions = None,
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)
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raise Access_error()
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revisions = self.__database.select_many( unicode, note.sql_load_revisions() )
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else:
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revisions = None
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return dict(
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revisions = revisions,
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)
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@expose( view = Json )
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@grab_user_id
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@validate(
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notebook_id = Valid_id(),
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note_id = Valid_id(),
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contents = Valid_string( min = 1, max = 25000, escape_html = False ),
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startup = Valid_bool(),
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previous_revision = Valid_revision( none_okay = True ),
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user_id = Valid_id( none_okay = True ),
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)
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def save_note( self, notebook_id, note_id, contents, startup, previous_revision, user_id ):
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"""
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Save a new revision of the given note. This function will work both for creating a new note and
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for updating an existing note. If the note exists and the given contents are identical to the
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existing contents for the given previous_revision, then no saving takes place and a new_revision
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of None is returned. Otherwise this method returns the timestamp of the new revision.
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@type notebook_id: unicode
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@param notebook_id: id of notebook the note is in
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@type note_id: unicode
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@param note_id: id of note to save
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@type contents: unicode
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@param contents: new textual contents of the note, including its title
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@type startup: bool
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@param startup: whether the note should be displayed on startup
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@type previous_revision: unicode or NoneType
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@param previous_revision: previous known revision timestamp of the provided note, or None if
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the note is new
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@type user_id: unicode or NoneType
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@param user_id: id of current logged-in user (if any), determined by @grab_user_id
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@rtype: json dict
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@return: {
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'new_revision': new revision of saved note, or None if nothing was saved,
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'previous_revision': revision immediately before new_revision, or None if the note is new
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'storage_bytes': current storage usage by user,
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}
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@raise Access_error: the current user doesn't have access to the given notebook
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@raise Validation_error: one of the arguments is invalid
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"""
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if not self.__users.check_access( user_id, notebook_id, read_write = True ):
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raise Access_error()
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notebook = self.__database.load( Notebook, notebook_id )
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if not notebook:
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raise Access_error()
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note = self.__database.load( Note, note_id )
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# check whether the provided note contents have been changed since the previous revision
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def update_note( current_notebook, old_note, startup ):
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# the note hasn't been changed, so bail without updating it
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if contents.replace( u"\n", u"" ) == old_note.contents.replace( u"\n", "" ) and startup == old_note.startup:
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new_revision = None
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# the note has changed, so update it
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else:
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note.contents = contents
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note.startup = startup
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if startup:
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if note.rank is None:
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note.rank = self.__database.select_one( float, notebook.sql_highest_rank() ) + 1
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else:
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note.rank = None
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new_revision = note.revision
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return new_revision
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# if the note is already in the given notebook, load it and update it
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if note and note.notebook_id == notebook.object_id:
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old_note = self.__database.load( Note, note_id, previous_revision )
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previous_revision = note.revision
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new_revision = update_note( notebook, old_note, startup )
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# the note is not already in the given notebook, so look for it in the trash
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elif note and notebook.trash_id and note.notebook_id == notebook.trash_id:
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old_note = self.__database.load( Note, note_id, previous_revision )
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# undelete the note, putting it back in the given notebook
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previous_revision = note.revision
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note.notebook_id = notebook.object_id
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note.deleted_from_id = None
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new_revision = update_note( notebook, old_note, startup )
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# otherwise, create a new note
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else:
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if startup:
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rank = self.__database.select_one( float, notebook.sql_highest_rank() ) + 1
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else:
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rank = None
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previous_revision = None
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note = Note.create( note_id, contents, notebook_id = notebook.object_id, startup = startup, rank = rank )
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new_revision = note.revision
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if new_revision:
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self.__database.save( note, commit = False )
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user = self.__users.update_storage( user_id, commit = False )
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self.__database.commit()
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else:
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user = None
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return dict(
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new_revision = new_revision,
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previous_revision = previous_revision,
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storage_bytes = user and user.storage_bytes or 0,
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)
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@expose( view = Json )
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@grab_user_id
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@validate(
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notebook_id = Valid_id(),
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note_id = Valid_id(),
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user_id = Valid_id( none_okay = True ),
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)
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def delete_note( self, notebook_id, note_id, user_id ):
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"""
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Delete the given note from its notebook and move it to the notebook's trash. The note is added
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as a startup note within the trash. If the given notebook is the trash and the given note is
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already there, then it is deleted from the trash forever.
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@type notebook_id: unicode
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@param notebook_id: id of notebook the note is in
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@type note_id: unicode
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@param note_id: id of note to delete
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@type user_id: unicode or NoneType
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@param user_id: id of current logged-in user (if any), determined by @grab_user_id
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@rtype: json dict
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@return: { 'storage_bytes': current storage usage by user }
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@raise Access_error: the current user doesn't have access to the given notebook
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@raise Validation_error: one of the arguments is invalid
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"""
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if not self.__users.check_access( user_id, notebook_id, read_write = True ):
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raise Access_error()
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notebook = self.__database.load( Notebook, notebook_id )
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if not notebook:
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raise Access_error()
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note = self.__database.load( Note, note_id )
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if note and note.notebook_id == notebook_id:
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if notebook.trash_id:
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note.deleted_from_id = notebook_id
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note.notebook_id = notebook.trash_id
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note.startup = True
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else:
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note.notebook_id = None
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self.__database.save( note, commit = False )
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user = self.__users.update_storage( user_id, commit = False )
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self.__database.commit()
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return dict( storage_bytes = user.storage_bytes )
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else:
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return dict( storage_bytes = 0 )
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@expose( view = Json )
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@grab_user_id
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@validate(
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notebook_id = Valid_id(),
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note_id = Valid_id(),
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user_id = Valid_id( none_okay = True ),
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)
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def undelete_note( self, notebook_id, note_id, user_id ):
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"""
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Undelete the given note from the trash, moving it back into its notebook. The note is added
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as a startup note within its notebook.
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@type notebook_id: unicode
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@param notebook_id: id of notebook the note was in
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@type note_id: unicode
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@param note_id: id of note to undelete
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@type user_id: unicode or NoneType
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@param user_id: id of current logged-in user (if any), determined by @grab_user_id
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@rtype: json dict
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@return: { 'storage_bytes': current storage usage by user }
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@raise Access_error: the current user doesn't have access to the given notebook
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@raise Validation_error: one of the arguments is invalid
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"""
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if not self.__users.check_access( user_id, notebook_id, read_write = True ):
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raise Access_error()
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notebook = self.__database.load( Notebook, notebook_id )
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if not notebook:
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raise Access_error()
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note = self.__database.load( Note, note_id )
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if note and notebook.trash_id:
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# if the note isn't deleted, and it's already in this notebook, just return
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if note.deleted_from_id is None and note.notebook_id == notebook_id:
|
|
return dict( storage_bytes = 0 )
|
|
|
|
# if the note was deleted from a different notebook than the notebook given, raise
|
|
if note.deleted_from_id != notebook_id:
|
|
raise Access_error()
|
|
|
|
note.notebook_id = note.deleted_from_id
|
|
note.deleted_from_id = None
|
|
note.startup = True
|
|
|
|
self.__database.save( note, commit = False )
|
|
user = self.__users.update_storage( user_id, commit = False )
|
|
self.__database.commit()
|
|
|
|
return dict( storage_bytes = user.storage_bytes )
|
|
else:
|
|
return dict( storage_bytes = 0 )
|
|
|
|
@expose( view = Json )
|
|
@grab_user_id
|
|
@validate(
|
|
notebook_id = Valid_id(),
|
|
user_id = Valid_id( none_okay = True ),
|
|
)
|
|
def delete_all_notes( self, notebook_id, user_id ):
|
|
"""
|
|
Delete all notes from the given notebook and move them to the notebook's trash (if any). The
|
|
notes are added as startup notes within the trash. If the given notebook is the trash, then
|
|
all notes in the trash are deleted forever.
|
|
|
|
@type notebook_id: unicode
|
|
@param notebook_id: id of notebook the note is in
|
|
@type user_id: unicode or NoneType
|
|
@param user_id: id of current logged-in user (if any), determined by @grab_user_id
|
|
@rtype: json dict
|
|
@return: { 'storage_bytes': current storage usage by user }
|
|
@raise Access_error: the current user doesn't have access to the given notebook
|
|
@raise Validation_error: one of the arguments is invalid
|
|
"""
|
|
if not self.__users.check_access( user_id, notebook_id, read_write = True ):
|
|
raise Access_error()
|
|
|
|
notebook = self.__database.load( Notebook, notebook_id )
|
|
|
|
if not notebook:
|
|
raise Access_error()
|
|
|
|
notes = self.__database.select_many( Note, notebook.sql_load_notes() )
|
|
|
|
for note in notes:
|
|
if notebook.trash_id:
|
|
note.deleted_from_id = notebook_id
|
|
note.notebook_id = notebook.trash_id
|
|
note.startup = True
|
|
else:
|
|
note.notebook_id = None
|
|
self.__database.save( note, commit = False )
|
|
|
|
user = self.__users.update_storage( user_id, commit = False )
|
|
self.__database.commit()
|
|
|
|
return dict(
|
|
storage_bytes = user.storage_bytes,
|
|
)
|
|
|
|
@expose( view = Json )
|
|
@strongly_expire
|
|
@grab_user_id
|
|
@validate(
|
|
notebook_id = Valid_id(),
|
|
search_text = Valid_string( min = 0, max = 100 ),
|
|
user_id = Valid_id( none_okay = True ),
|
|
)
|
|
def search( self, notebook_id, search_text, user_id ):
|
|
"""
|
|
Search the notes within a particular notebook for the given search text. Note that the search
|
|
is case-insensitive, and all HTML tags are ignored. The matching notes are returned with title
|
|
matches first, followed by all other matches.
|
|
|
|
@type notebook_id: unicode
|
|
@param notebook_id: id of notebook to search
|
|
@type search_text: unicode
|
|
@param search_text: search term
|
|
@type user_id: unicode or NoneType
|
|
@param user_id: id of current logged-in user (if any), determined by @grab_user_id
|
|
@rtype: json dict
|
|
@return: { 'notes': [ matching notes ] }
|
|
@raise Access_error: the current user doesn't have access to the given notebook
|
|
@raise Validation_error: one of the arguments is invalid
|
|
"""
|
|
if not self.__users.check_access( user_id, notebook_id ):
|
|
raise Access_error()
|
|
|
|
notebook = self.__database.load( Notebook, notebook_id )
|
|
|
|
if not notebook:
|
|
raise Access_error()
|
|
|
|
search_text = search_text.lower()
|
|
if len( search_text ) == 0:
|
|
return dict( notes = [] )
|
|
|
|
title_matches = []
|
|
content_matches = []
|
|
nuker = Html_nuker()
|
|
|
|
notes = self.__database.select_many( Note, notebook.sql_search_notes( search_text ) )
|
|
|
|
# further narrow the search results by making sure notes still match after all HTML tags are
|
|
# stripped out
|
|
for note in notes:
|
|
if search_text in nuker.nuke( note.title ).lower():
|
|
title_matches.append( note )
|
|
elif search_text in nuker.nuke( note.contents ).lower():
|
|
content_matches.append( note )
|
|
|
|
return dict(
|
|
notes = title_matches + content_matches,
|
|
)
|
|
|
|
@expose( view = Json )
|
|
@strongly_expire
|
|
@grab_user_id
|
|
@validate(
|
|
notebook_id = Valid_id(),
|
|
user_id = Valid_id( none_okay = True ),
|
|
)
|
|
def all_notes( self, notebook_id, user_id ):
|
|
"""
|
|
Return ids and titles of all notes in this notebook, sorted by reverse chronological order.
|
|
|
|
@type notebook_id: unicode
|
|
@param notebook_id: id of notebook to pull notes from
|
|
@type user_id: unicode
|
|
@param user_id: id of current logged-in user (if any), determined by @grab_user_id
|
|
@rtype: json dict
|
|
@return: { 'notes': [ ( noteid, notetitle ) ] }
|
|
@raise Access_error: the current user doesn't have access to the given notebook
|
|
@raise Validation_error: one of the arguments is invalid
|
|
"""
|
|
if not self.__users.check_access( user_id, notebook_id ):
|
|
raise Access_error()
|
|
|
|
notebook = self.__database.load( Notebook, notebook_id )
|
|
|
|
if not notebook:
|
|
raise Access_error()
|
|
|
|
notes = self.__database.select_many( Note, notebook.sql_load_notes() )
|
|
|
|
return dict(
|
|
notes = [ ( note.object_id, note.title ) for note in notes ]
|
|
)
|
|
|
|
@expose( view = Html_file )
|
|
@strongly_expire
|
|
@grab_user_id
|
|
@validate(
|
|
notebook_id = Valid_id(),
|
|
user_id = Valid_id( none_okay = True ),
|
|
)
|
|
def download_html( self, notebook_id, user_id ):
|
|
"""
|
|
Download the entire contents of the given notebook as a stand-alone HTML page (no JavaScript).
|
|
|
|
@type notebook_id: unicode
|
|
@param notebook_id: id of notebook to download
|
|
@type user_id: unicode
|
|
@param user_id: id of current logged-in user (if any), determined by @grab_user_id
|
|
@rtype: unicode
|
|
@return: rendered HTML page
|
|
@raise Access_error: the current user doesn't have access to the given notebook
|
|
@raise Validation_error: one of the arguments is invalid
|
|
"""
|
|
if not self.__users.check_access( user_id, notebook_id ):
|
|
raise Access_error()
|
|
|
|
notebook = self.__database.load( Notebook, notebook_id )
|
|
|
|
if not notebook:
|
|
raise Access_error()
|
|
|
|
startup_notes = self.__database.select_many( Note, notebook.sql_load_startup_notes() )
|
|
other_notes = self.__database.select_many( Note, notebook.sql_load_non_startup_notes() )
|
|
|
|
return dict(
|
|
notebook_name = notebook.name,
|
|
notes = startup_notes + other_notes,
|
|
)
|